Description:FIELD OF THE INVENTION

[0001] The present invention relates to a spot welding device that is capable of providing a means to perform a spot welding on a workpiece by holding the workpiece in a stable manner and accordingly apply proper heating effect on the workpiece without affecting integrity structure of the workpiece in facilitating a strong and reliable bond between the workpiece.

BACKGROUND OF THE INVENTION

[0002] Spot welding on workpiece plays an important role in ensuring a strong and reliable bond between two metal surfaces. This process uses high levels of heat and pressure to create a secure connection, making it ideal for joining materials in automotive and manufacturing industries. One key advantage of spot welding is ability to produce consistent and precise welds quickly, increasing efficiency in production processes. Additionally, the minimal heat-affected zone helps to maintain the integrity of the surrounding material, reducing the risk of distortion or damage. Overall, spot welding is efficient method for creating strong bonds in metal fabrication for various applications in industries where precision and durability are essential.

[0003] Traditionally the user uses tools for spot welding on the workpiece includes handheld welding guns, robotic welding arms, and resistance spot welding machines. These tools provide precise control over the welding process and ensure strong, reliable welds for various applications. However, advancements in technology have led to the development of more automated and efficient spot welding equipment, such as laser welding systems and automated robotic welding cells. These modern tools offer increased speed, accuracy, and consistency in spot welding operations but often requires proper skills in the field of welding techniques.

[0004] CN202667903U discloses a utility model discloses a handheld spot welding machine which comprises a handheld part, wherein a pressure switch is arranged in the handheld part, two groups of springs connected with the pressure switch are arranged at the bottom of the handheld part and, lower portions of the springs are connected with two groups of welding needles, and end portions of the welding needles are provided with two groups of welding heads. An electric wire is led out through the handheld part and connected with a servo motor which supplies electricity to the welding heads. The handheld spot welding machine is simple in structure, spot welding can be carried out flexibly and conveniently, and the handheld spot welding machine can be broadly applied to a battery processing industry. Although, CN’903 provides way to assist the user in welding activity by using a servo motor which supplies electricity to the welding heads, however lacks in alerting the user regarding overheating of the workpiece during welding operation.

[0005] Conventionally, many devices are disclosed in prior art that provides way to allow a user to do spot welding over a workpiece but lacks in providing precise control over the welding parameter result in inconsistent weld quality and potentially compromised structural integrity of the workpiece. Moreover, such devices are lacks in applying proper heating effect over the workpiece due to which the workpiece gets affected due to overheating.

[0006] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a device that is capable of allow a user to do spot welding over a workpiece with precise control over the welding parameter without compromising structural integrity of the workpiece with proper heating effect over the workpiece.

OBJECTS OF THE INVENTION

[0007] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0008] An object of the present invention is to develop a device that is capable of performing a spot welding on a workpiece by holding the workpiece in a stable manner and accordingly apply proper heating effect on the workpiece without affecting integrity structure of the workpiece.

[0009] Another object of the present invention is to develop a device that is capable of alerting the user regarding overheating of the workpiece during welding operation in order to halt the operation to prevent damage to the workpiece in longer aspect.

[0010] Yet another object of the present invention is to develop a device that is capable of removing welding fumes generated during welding in order to maintain cleanliness in surrounding.

[0011] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0012] The present invention relates to a spot welding device that is capable of enabling a user to perform spot welding on the workpiece by proper application of heating effect without any chances of damage to the workpiece in order to provide strong and reliable bond between the workpiece.

[0013] According to an embodiment of the present invention, a spot welding device, comprises of a rectangular base adapted to be positioned on a ground surface, multiple motorized omnidirectional wheels is provided underneath the base for a locomotion of the base, a touch-enabled display unit provided on the structure for enabling the user to provide touch input regarding initiating or stopping the welding, a microphone linked with a microcontroller, provided on the structure for receiving an audio command from the user regarding welding a work piece an artificial intelligence-based imaging unit installed on the structure to determine orientation and shape of the work piece to be welded, multiple suction cups provided on the rounded end of the member for holding the work piece in a stable manner a rectangular plate mounted on the base by means of a vertical actuator for providing an adjustable sitting surface for a user, a rigid inverted L-shaped member having a rounded end integrated with a rigid vertical structure mounted on the base for supporting a work piece for welding, an L-shaped telescopic link having a conductive rounded tip attached with the structure above the member by means of ball and socket joint for contacting with the work piece supported on the rounded end of the member for welding by passage of electricity, a temperature sensor embedded in the member detects a temperature of the work piece, a speaker provided on the base to generate an audio alert regarding an overheating condition, a vacuum unit is installed on the structure for removal of welding fumes generated during welding, and battery associated with the device connected with the rounded end of the member and the rounded tip of the link to establish an electric current for enabling welding.

[0014] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a spot welding device.

DETAILED DESCRIPTION OF THE INVENTION

[0016] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0017] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0018] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0019] The present invention relates to a spot welding device that is capable of allow the user to perform spot welding over the workpiece with proper application of heating effect by passing electricity in the device in addition with removal of welding fumes generated during welding thereby joining of the workpiece with cleanliness of the surrounding.

[0020] Referring to Figure 1, an isometric view of a spot welding device is illustrated, comprising a rectangular base 101 integrated with multiple motorized omnidirectional wheels 102, a rectangular plate 103 mounted on the base 101 by means of a vertical actuator 104, a rigid inverted L-shaped member 105 having a rounded end, is attached with a rigid vertical structure 111 mounted on the base 101, an L-shaped telescopic link 106 having a conductive rounded tip attached with the structure 111, above the member 105 by means of ball and socket joint, an artificial intelligence- based imaging unit 107 installed on the structure 111, a microphone 108 provided on the structure 111, a speaker 109 provided on the base 101, a vacuum unit installed on the structure 111, and a touch-enabled display unit 110 provided on the structure 111.

[0021] The proposed device comprises of a rectangular base 101 made up of any material selected from but not limited to metallic material and wooden material alike and encased with various component associated with the device arrange in sequential manner that aids in performing spot welding on a work piece. The base 101 is developed to position on a ground surface. Herein, a rigid inverted L-shaped member 105 having a rounded end, is attached with a rigid vertical structure 111 mounted on the base 101 for supporting a work piece for welding. Upon positioning the base 101 on the surface, the user requires to access a rectangular plate 103 assembled on the base 101 by means of a vertical actuator 104 for sitting and activate the device manually by pressing a switch button integrated on the base 101. The button is type of a switch that is internally connected with the device via multiple circuits that upon pressing by the user, the circuits get closed and starts conduction of electricity that tends to activate the device and vice versa.

[0022] After activating of the device by the user, a microcontroller associated with the device generates a commands to operate the device accordingly. Upon activating the device, the microcontroller activates touch-enabled display unit 110 integrated with the structure 111 for giving access to the user for providing input commands regarding initiating or stopping the welding. The display unit 110 works by using LCD (liquid crystals) that are manipulated by electric currents to control the passage of light through the display. When an electric current is applied, the liquid crystals align in a way that either allows light to pass through or blocks it, creating the images and colors that is being visible in the LCD of the display unit 110 regarding the initiating or stopping the welding eight that is further change the electric charge at the location of the touch to register as input. The input is stored in the microcontroller to process the input.

[0023] Upon processing the input, the microcontroller activates a microphone 108 integrated in the structure 111 for giving voice commands regarding welding a work piece. The microphone 108 receives sound waves generated by energy emitted from the voice command in the form of vibrations. After then, the sound waves are transmitted towards a diaphragm configured with a coil. Upon transmitting the waves within the diaphragm, the diaphragm strikes with the waves due to which the coil starts moving the diaphragm with a back-and-forth movement in presence of magnetic field generated from the coil. After that the electric signal is emitted from the coil due to back-and-forth movement of the diaphragm which is further transmitted to a microcontroller linked with the microphone 108 to process the signal to analyze the signal for detecting voice command given by the user.

[0024] Upon processing the voice commands, the microcontroller actuates an artificial intelligence-based imaging unit 107 integrated in the structure 111 to determine orientation and shape of the work piece to be welded. The imaging unit 107, disclosed herein comprises of a camera and processor that works in collaboration to capture and process the images in a vicinity of the structure 111. The camera firstly captures multiple images of the vicinity of the structure 111, wherein the camera comprises of a body, electronic shutter, lens, lens aperture, image sensor, and imaging processor that works in sequential manner to capture images of the vicinity of the structure 111.

[0025] After capturing of the images by the camera, the shutter is automatically open due to which the reflected beam of light coming from the surrounding due to light is directed towards the lens aperture. After then the reflected light beam passes through the image sensor. The sensor now analyzes the beam to retrieve signal from the beams which is further calibrate by the sensor to capture images of the vicinity of the structure 111 in electronic signal. Upon capturing images, the imaging processor processes the electronic signal into digital image. When the capturing is done, the processor associated with the imaging unit 107 processes the captured images by using a protocol of artificial intelligence to retrieve data from the captured image in the form of digital signal. The detected data is now transmitted to the microcontroller based on which the microcontroller acquires the data to detect the orientation and shape of the work piece to be welded.

[0026] Based on detecting the orientation and shape of the work piece to be welded, the microcontroller generates commands to actuate a ball and socket joint integrated with a L-shaped telescopic link 106 attached with the structure 111 for providing movement to a conductive rounded tip fabricated with tip of the link 106 towards the work piece supported on the rounded end of the member 105. The ball and socket joint is a mechanical arrangement consists of a ball-shaped component that fits into a socket, with a motor providing the necessary power to drive the rotation to provide angular movement to the link 106 towards the work piece supported on the rounded end of the member 105.

[0027] Simultaneously, the microcontroller actuates a pneumatic unit integrated with the L-shaped telescopic link 106 to extend for making contact of the conductive rounded tip with the work piece supported on the rounded end of the member 105. The pneumatic unit comprises of an air compressor, air cylinder, air valves i.e. Inlet and outlet valve and piston that works in collaboration to aid extension and retraction of the link 106. The air compressor is coupled with a motor that gets activated by the microcontroller to compress the air from surroundings upon entering from the inlet valve to compressed and pumped out via the outlet valve. The air valve allows entry or exit of the compressed air from the compressor. Furthermore, the valve opens and the compressed air enters inside the cylinder thereby increasing the air pressure of the cylinder. The piston is connected to the cylinder and due to the increase in the air pressure, the piston extends.

[0028] And upon closing of the valve, the compressed air exit out from the cylinder thereby decreasing the air pressure of the cylinder. The increasing and decreasing of the air pressure from the cylinder aids in extension and retraction of the piston that turns in aiding extension and retraction of the link 106 to position the rounded tip in contact with the work piece for welding by passage of electricity. After that the multiple suction cups provided on the rounded end of the member 105 create partial vacuum within the cups upon pressing over the workpiece by squeezing out air from the cups due to a negative pressure is generated inside suction area.

[0029] Upon generation of negative pressure, atmospheric pressure outside the cups presses down low-pressure area inside the cups to generate suction to adhere the workpiece to hold the work piece in a stable manner for welding by passage of electricity. Herein, the member 105 is made up of conductive material that passes electricity for welding the workpiece. A battery (not shown in figure) is associated with the device and connected with the rounded end of the member 105 and the rounded tip of the link 106 to facilitate an electric current for enabling welding.

[0030] The battery discloses, herein offers power to the rounded end of the member 105 and the rounded tip of the link 106 necessary for their correct operation. The battery is linked to the microcontroller and provides (DC) Direct Current to the microcontroller. And then, based on the order of operations, the microcontroller sends that current to the rounded end of the member 105 and the rounded tip of the link 106. The battery operates by converting chemical energy into electrical energy, which is then used to generate heat at the rounded end of the member 105 and the rounded tip of the link 106 for melting the workpiece being welded together, creating a strong bond between the workpiece.

[0031] During welding operation, a temperature sensor integrated in the member 105 detects a temperature of the workpiece. The temperature sensor is equipped with two electrodes utilized to detect the rise in voltage across the electrodes due to heating of the workpiece. The detecting voltage is equivalent to the temperature that is sensed by the sensor. After then the sensor converts that detected temperature into electric signals and transmits that signal into the microcontroller. After that the microcontroller processes and analyze the signal to detect the temperature of the workpiece.

[0032] Based on detection of the workpiece’s temperature, if the detected temperature exceeds a threshold temperature pre-fed in database of the microcontroller, then the microcontroller actuates a speaker 109 provided on the base 101 to generate an audio alert regarding an overheating condition. The speaker 109 includes a diaphragm, which is typically made of a lightweight and rigid material like paper, plastic, or metal to vibrate and produce sound waves when electrical signals are fed to it for notifying the user. After passing of the electrical signal through a voice coil suspended within a magnetic gap of the speaker 109, it generates a magnetic field that interacts with the fixed magnetic field produced by a magnet assembly associated with the voice coil.

[0033] Upon variation in electrical current, the magnetic field produced by the voice coil changes, resulting in the voice coil and attached cone/diaphragm moving back and forth. This movement creates pressure variations in the surrounding air, generating sound waves to generate the audible sound to notify the user regarding an overheating condition of the workpiece. Additionally, a vacuum unit is integrated on the structure 111 for removal of welding fumes generated during welding. The vacuum unit comprises of an impeller configured with multiple vanes and which is directly coupled with the shaft of a motor to rotate the impeller. Further, the motor is capable of converting current into mechanical work by following the principle of Lorentz Law which states that, the current carrying conduction when placed in magnetic or electrical field experiences a force known as Lorentz force. Such that the motor converts the electrical current derived from an external source into a mechanical torque for providing the required rotational power to the impeller. The impeller vanes are designed in such a way that on rotation the impeller creates the negative pressure in the vacuum unit for extracting of welding fumes generated during welding.

[0034] Moreover, the user accesses the display unit 110 to give input for moving the base 101 on the ground surface as per requirement based on that the microcontroller actuates multiple motorized omnidirectional wheels 102 provided underneath the base 101 to move the base 101. Each of the wheels 102 are coupled with a motor that is activated by the microcontroller to provide circular motion to the wheels 102 for moving the base 101 on the ground surface as per requirement.

[0035] The present invention works best in following manner that possess the rectangular base 101 adapted to be positioned on a ground surface having the motorized omnidirectional wheels 102 for a locomotion of the base 101. Herein, the touch-enabled display unit 110, linked with the microcontroller to provide touch input regarding initiating or stopping the welding based on that the microcontroller actuates the microphone 108 for receiving an audio command from the user regarding welding a work piece to trigger the microcontroller to actuate the imaging unit 107 to determine orientation and shape of the work piece to be welded to actuate the ball and socket joint and the link 106 to contact with the work piece supported on the rounded end of the member 105 for welding by passage of electricity through the battery for enabling welding. Herein, the temperature sensor detects a temperature of the work piece to trigger the microcontroller to actuate the speaker 109 to generate an audio alert regarding an overheating condition, if the detected temperature exceeds a threshold temperature.

[0036] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1) A spot welding device, comprising:

i) a rectangular base 101 adapted to be positioned on a ground surface, wherein a plurality of motorized omnidirectional wheels 102 is provided underneath said base 101 for a locomotion of said base 101;
ii) a rectangular plate 103 mounted on said base 101 by means of a vertical actuator 104 for providing an adjustable sitting surface for a user;
iii) a rigid vertical structure 111 mounted on said base 101, wherein a rigid inverted L-shaped member 105 having a rounded end, is attached with said structure 111 for supporting a work piece for welding, wherein said member 105 is made of a conductive material;
iv) an L-shaped telescopic link 106 attached with said structure 111, above said member 105 , by means of ball and socket joint, said link 106 having a conductive rounded tip, for contacting with said work piece supported on said rounded end of said member 105 for welding by passage of electricity; and
v) an artificial intelligence-based imaging unit 107, installed on said structure 111 and integrated with a processor for recording and processing images in a vicinity of said structure 111, to determine orientation and shape of said work piece to be welded to trigger a microcontroller to actuate said ball and socket joint and said link 106 to contact with said work piece supported on said rounded end of said member 105 for welding by passage of electricity.

2) The device as claimed in claim 1, wherein a plurality of suction cups is provided on said rounded end of said member 105 for holding said work piece in a stable manner.

3) The device as claimed in claim 1, wherein a microphone 108, linked with said microcontroller, provided on said structure 111 for receiving an audio command from said user regarding welding a work piece to trigger said microcontroller to actuate said imaging unit 107 to determine orientation and shape of said work piece to be welded to actuate said ball and socket joint and said link 106 to contact with said work piece supported on said rounded end of said member 105 for welding by passage of electricity.

4) The device as claimed in claim 1, wherein a temperature sensor embedded in said member 105 detects a temperature of said work piece to trigger said microcontroller to actuate a speaker 109 provided on said base 101 to generate an audio alert regarding an overheating condition, if said detected temperature exceeds a threshold temperature.

5) The device as claimed in claim 1, wherein a vacuum unit is installed on said structure 111 for removal of welding fumes generated during welding.

6) The device as claimed in claim 1, wherein a touch-enabled display unit 110, linked with said microcontroller, is provided on said structure 111 for enabling said user to provide touch input regarding initiating or stopping said welding.

7) The device as claimed in claim 1, wherein a battery is associated with said device connected with said rounded end of said member 105 and said rounded tip of said link 106 to establish an electric current for enabling welding.