A spot welding machine

Abstract

This application relates to a spot welding machine, specifically within the technical field of spot welding machines. The machine includes a mounting plate and a body. The back of the mounting plate is fixedly installed to the front of the body. A lower electrode module and an upper electrode module are located on the front of the body. This application utilizes components such as a limiting rod, a ring-shaped component, a damping rod, and a spring. A dividing motor drives the limiting rod and a rotating disk to rotate, causing the corresponding workstation on the rotating disk and the workpiece to be welded to rotate into the spot welding area, achieving continuous switching between four workstations. Activating a telescopic rod lowers the upper electrode module, which then presses against the workpiece. Under the action of the damping rod and spring, the rotating disk and the ring-shaped component descend until the welding needles of the upper electrode module, the workpiece, and the welding needles of the lower electrode module contact, achieving spot welding. Thus, this device can achieve multi-station switching and continuous operation without affecting the spot welding work, thereby improving spot welding efficiency.

Description

Technical Field

[0001] This application relates to the field of spot welding machine technology, and in particular to a spot welding machine. Background Technology

[0002] Currently, spot welding machines adopt the principle of double-sided double-point overcurrent welding, which includes an upper electrode, a lower electrode, and a resistance welding unit. During operation, the two electrodes press the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, it forms an instantaneous thermal fusion at the two contact resistance points. The welding current also flows instantaneously from the other electrode along the two workpieces to this electrode to form a circuit, without damaging the internal structure of the workpiece being welded.

[0003] An existing patent (publication number: CN212496115U) discloses a precision spot welding machine, which includes a machine body, a lower electrode rod fixedly connected to the side wall of the machine body, the lower electrode rod being horizontally positioned and a lower electrode welding needle fixedly connected to the lower electrode rod, an upper electrode rod rotatably connected to the side wall of the machine body, an upper electrode welding needle fixedly connected to the upper electrode rod, the tip of the upper electrode welding needle being able to abut against the tip of the lower electrode welding needle, two connecting rods fixedly connected to the machine body, the two connecting rods being jointly fixedly connected to a spot welding plate, the spot welding plate having a welding opening at the position corresponding to the position between the upper electrode welding needle and the lower electrode welding needle, two fixing plates slidably connected to the upper surface of the spot welding plate, the two fixing plates being perpendicular to the spot welding plate and parallel to each other, a top plate slidably connected to the upper surface of the spot welding plate near the machine body, the top plate being perpendicular to the spot welding plate and perpendicular to the two fixing plates, the top plate being able to abut against the two fixing plates. This utility model has the effect of fast and precise spot welding.

[0004] However, in the above solution, it was found that because the spot welding operation was carried out at a single station, the operator had to remove the workpiece from the station and replace it with the workpiece after each spot welding was completed before spot welding could be carried out again. This made it impossible to achieve continuous operation and resulted in low spot welding efficiency. Utility Model Content

[0005] The purpose of this application is to provide a spot welding machine that can achieve multi-station switching without affecting spot welding work, thus achieving continuous operation and improving spot welding efficiency. This solves the problem of existing technologies that use a single station to complete the work, which requires the operator to remove the workpiece after each operation and replace it with another workpiece before spot welding can be performed again, making continuous operation impossible and resulting in low spot welding efficiency.

[0006] The spot welding machine provided in this application adopts the following technical solution: it includes a mounting plate and a machine body. The back of the mounting plate is fixedly installed with the front of the machine body. A lower electrode module is provided on the front of the machine body. An upper electrode module is provided on the front of the machine body. A connecting arm is fixedly connected to the front of the machine body. A telescopic rod is fixedly installed on the upper surface of the connecting arm. The output end of the telescopic rod is fixedly installed with the upper surface of the upper electrode module. A dividing motor is fixedly connected to the bottom surface of the mounting plate. A limit rod is fixedly connected to the output shaft of the dividing motor. A rotating disk is slidably connected to the outer surface of the limit rod. The upper surface of the rotating disk has through holes arranged at equal intervals. An annular shell is fixedly installed on the upper surface of the mounting plate. An annular component is slidably connected to the inner wall of the annular shell. A damping rod is fixedly connected to the bottom surface of the annular component at equal intervals. A spring is fixedly connected to the bottom surface of the annular component at equal intervals. The bottom end of each damping rod and spring is fixedly connected to the upper surface of the mounting plate.

[0007] By adopting the above technical solution, a lower electrode module and an upper electrode module are set on the front of the machine body. The telescopic rod is installed through a connecting arm and fixed to the upper electrode module, so that the telescopic rod can drive the upper electrode module to descend and contact the workpiece to be welded and the lower electrode module to achieve spot welding. The indexing motor can achieve intermittent 90-degree rotation. The indexing motor can drive the limit rod to rotate. The limit rod limits the rotating disk, so that the rotating disk can drive the four workstations on the surface to rotate. The four through holes on the surface of the rotating disk correspond to the four workstations, thereby changing the orientation of the workpiece to be welded on the corresponding through holes. An annular part is set on the inner wall of the annular shell. A damping rod and a spring are set between the annular part and the mounting plate. During welding, the telescopic rod causes the upper electrode module to descend and press against the workpiece to be welded. At this time, the rotating disk descends under the action of the damping rod and the spring until the welding needle of the upper electrode module, the workpiece to be welded, and the welding needle of the lower electrode module contact, thus achieving spot welding. Therefore, this device can achieve multi-workstation switching and continuous operation without affecting the spot welding work, thereby improving the spot welding efficiency.

[0008] Preferably, a base plate is fixedly installed on the bottom surface of the machine body, and two support rods are fixedly connected to the inner wall of the base plate. The top end of each support rod is fixedly connected to the bottom surface of the mounting plate, and a control module is fixedly installed on the right side of the machine body.

[0009] By adopting the above technical solution, the base plate is installed on the bottom surface of the machine body, and the support rod is installed on the inner wall of the base plate. The top of the support rod is fixed to the mounting plate to support the mounting plate, so that the mounting plate and the upper components can have sufficient support force. The control module facilitates the start and stop of the device and other operations.

[0010] Preferably, a collection shell is fixedly installed on the bottom surface of the mounting plate, and two mounting blocks are fixedly installed on the outer surface of the collection shell. Two magnetic blocks are fixedly installed on the left side of each mounting block.

[0011] By adopting the above technical solution, the collection shell is installed on the bottom surface of the mounting plate, and the bottom surface of the mounting plate has a square through hole. The square through hole allows the debris generated during spot welding to fall directly onto the collection shell. The mounting block is fixed on the outer surface of the collection shell, and the magnetic block two is fixed to the corresponding mounting block to realize the installation of the magnetic block two. The magnetic block two has magnetism.

[0012] Preferably, a collection cylinder is slidably disposed on the inner wall of the collection shell, and a magnetic block arranged at equal intervals is fixedly installed on the right side of the collection cylinder.

[0013] By adopting the above technical solution, a collection cylinder is set on the inner wall of the collection shell, and a magnetic block one is installed on the right side of the collection cylinder. The magnetic block one also has magnetism, and the position of the magnetic block one corresponds to the magnetic block two, so that the collection cylinder can be magnetically installed inside the collection shell, realizing the quick removal of the collection cylinder, and thus facilitating the removal and processing of the debris collected in the collection cylinder.

[0014] Preferably, L-shaped plates arranged at equal intervals are fixedly installed on the upper surface of the rotating disk.

[0015] By adopting the above technical solution, an L-shaped plate is installed on the upper surface of the rotating disk. The L-shaped plate can block the back side of the workpiece to be welded, thereby limiting the back side of the workpiece to be welded.

[0016] Preferably, the upper surface of the rotating disk is fixedly connected with equidistantly arranged fixing members, and the outer surface of each fixing member is fixedly connected with two damping rods and two springs.

[0017] By adopting the above technical solution, a fixing component is installed on the upper surface of the rotating disk and fixed so that the fixing component can move when the rotating disk rotates. A second damping rod and a second spring are set on the surface of the fixing component to realize the installation of the second damping rod and the second spring.

[0018] Preferably, the upper surface of the rotating disk is provided with equidistantly arranged receiving grooves, and the inner wall of each receiving groove is slidably connected with a clamping member, and the other end of each damping rod and spring is fixedly connected to the outer surface of the corresponding clamping member.

[0019] By adopting the above technical solution, equidistant receiving grooves are opened on the upper surface of the rotating disk to achieve positioning of the receiving grooves. Clamping components are set on the inner wall of the receiving grooves and are set as sliding connections to achieve limiting of the clamping components. The corresponding damping rods and springs are connected to the corresponding clamping components so that the damping rods and springs can press the corresponding clamping components tightly.

[0020] Preferably, the inner walls of the four clamping members are threaded with bolts, and a rubber block is fixedly connected to the bottom end of each bolt.

[0021] By adopting the above technical solution, the bolt is installed on the inner wall of the other four clamping parts to realize the installation of the bolt. A rubber block is installed at the bottom of the bolt. By rotating the bolt, the rubber block is moved, thereby facilitating the adjustment of the position of the four clamping parts.

[0022] In summary, this application includes at least one of the following beneficial technical effects: This spot welding machine, through the setting of components such as a limiting rod, a ring component, a damping rod, and a spring, starts an indexing motor to drive the limiting rod and the rotating disk to rotate, so that the corresponding workstation on the rotating disk and the workpiece to be welded rotate to the spot welding area, realizing continuous switching of four workstations. Activating the telescopic rod causes the upper electrode module to descend, and the upper electrode module presses against the workpiece to be welded. Under the action of the damping rod and the spring, the rotating disk and the ring component descend until the welding needle of the upper electrode module, the workpiece to be welded, and the welding needle of the lower electrode module make contact, realizing spot welding. Thus, this device can realize multi-workstation switching without affecting spot welding work, achieving the effect of continuous operation and improving spot welding efficiency. By setting a fixing component to install the damping rod and the spring, a receiving groove is opened on the surface of the rotating disk to limit the clamping component. Under the action of the damping rod and the spring, the clamping component can move. Adjusting the other four clamping components and locking them with bolts and rubber blocks, the clamping components can hold the workpiece to be welded, improving the stability during spot welding. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the entire application in three dimensions; Figure 2 This is a front view of the overall main view of this application; Figure 3 This is a schematic diagram showing the connection relationship between the telescopic rod and the upper electrode module in this application. Figure 4 This is a schematic diagram showing the connection between the limiting rod and the rotating disk in this application; Figure 5 This is a schematic diagram showing the connection between the collection shell and the collection cylinder in this application; Figure 6 This is a schematic diagram showing the connection between the second spring and the clamping member in this application; Figure 7 For this application Figure 1 Enlarged structural diagram of section A in the middle.

[0024] In the picture: 1. Mounting plate; 2. Indexing motor; 3. Annular shell; 4. Machine body; 5. Lower electrode module; 6. Upper electrode module; 7. Limiting rod; 8. Rotating disk; 9. Annular component; 10. Damping rod one; 11. Spring one; 12. Base plate; 13. Support rod; 14. Control module; 15. Connecting arm; 16. Telescopic rod; 17. Collection shell; 18. Collection cylinder; 19. Magnetic block one; 20. Mounting block; 21. Magnetic block two; 22. L-shaped plate; 23. Fixing component; 24. Damping rod two; 25. Spring two; 26. Clamping component; 27. Bolt component; 28. Rubber block; 29. ​​Receiving groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0026] Example 1: A spot welding machine, please refer to... Figures 1-4 The assembly includes a mounting plate 1 and a body 4. The back of the mounting plate 1 is fixedly mounted to the front of the body 4. A lower electrode module 5 and an upper electrode module 6 are provided on the front of the body 4. A connecting arm 15 is fixedly connected to the front of the body 4. A telescopic rod 16 is fixedly mounted on the upper surface of the connecting arm 15. The output end of the telescopic rod 16 is fixedly mounted to the upper surface of the upper electrode module 6. The lower electrode module 5 and the upper electrode module 6 are provided on the front of the body 4. The telescopic rod 16 is installed through the connecting arm 15 and fixed to the upper electrode module 6, so that the telescopic rod 16 can drive the upper electrode module 6 to descend and contact the workpiece to be welded and the lower electrode module 5 to achieve spot welding.

[0027] A dividing motor 2 is fixedly connected to the bottom surface of the mounting plate 1. A limit rod 7 is fixedly connected to the output shaft of the dividing motor 2. A rotating disk 8 is slidably connected to the outer surface of the limit rod 7. The upper surface of the rotating disk 8 has through holes arranged at equal intervals. An annular shell 3 is fixedly installed on the upper surface of the mounting plate 1. The dividing motor 2 can achieve intermittent rotation of 90 degrees. The dividing motor 2 can drive the limit rod 7 to rotate. The limit rod 7 limits the rotating disk 8, so that the rotating disk 8 can drive the four work positions on its surface to rotate. The four through holes on the surface of the rotating disk 8 correspond to the four work positions, thereby changing the orientation of the workpieces to be welded on the corresponding through holes. An annular component 9 is slidably connected to the inner wall of the annular shell 3. The bottom surface of the annular component 9 is fixedly connected to damping elements arranged at equal intervals. The bottom surface of the rod 10 and the annular part 9 is fixedly connected with springs 11 arranged at equal intervals. The bottom end of each damping rod 10 and spring 11 is fixedly connected to the upper surface of the mounting plate 1. The annular part 9 is set on the inner wall of the annular shell 3. The annular part 9 is connected to the mounting plate 1 by setting damping rods 10 and springs 11. During welding, the telescopic rod 16 causes the upper electrode module 6 to descend and press against the workpiece to be welded. At this time, the rotating disk 8 descends under the action of damping rods 10 and springs 11 until the welding needle of the upper electrode module 6, the workpiece to be welded, and the welding needle of the lower electrode module 5 come into contact, thus realizing spot welding. This allows the device to achieve multi-station conversion and continuous operation without affecting the spot welding work, thereby improving the spot welding efficiency.

[0028] Example 2: A spot welding machine, please refer to... Figures 3-7A collection shell 17 is fixedly installed on the bottom surface of the mounting plate 1. Two mounting blocks 20 are fixedly installed on the outer surface of the collection shell 17. Two magnetic blocks 21 are fixedly installed on the left side of each mounting block 20. The collection shell 17 is installed on the bottom surface of the mounting plate 1, and the bottom surface of the mounting plate 1 has square through holes, allowing debris generated during spot welding to fall directly onto the collection shell 17. The mounting blocks 20 are fixed to the outer surface of the collection shell 17, and the magnetic blocks 21 are fixed to the corresponding mounting blocks 20, thus installing the magnetic blocks 21. The magnetic blocks 21 are magnetic. A collection cylinder 18 is slidably arranged on the inner wall of the collection shell 17. Magnetic blocks 19 are fixedly installed at equal intervals on the right side of the collection cylinder 18. The collection cylinder 18 is located on the inner wall of the collection shell 17, and the magnetic blocks 19 are installed on the right side of the collection cylinder 18. Block 19 is also magnetic, and its position corresponds to that of block 21, allowing the collecting cylinder 18 to be magnetically attached to the inside of the collecting shell 17. This enables the collecting cylinder 18 to be quickly removed, facilitating the removal and processing of debris collected inside the collecting cylinder 18. A base plate 12 is fixedly installed on the bottom surface of the machine body 4. Two support rods 13 are fixedly connected to the inner wall of the base plate 12. The top of each support rod 13 is fixedly connected to the bottom surface of the mounting plate 1. A control module 14 is fixedly installed on the right side of the machine body 4. The base plate 12 is installed on the bottom surface of the machine body 4, and the support rods 13 are installed on the inner wall of the base plate 12. The top of the support rods 13 is fixed to the mounting plate 1, providing support for the mounting plate 1. This ensures that the mounting plate 1 and the upper components have sufficient support force. The control module 14 facilitates the control of the device's start-up, shutdown, and other operations.

[0029] The upper surface of the rotating disk 8 is provided with equidistant receiving grooves 29. Equally spaced L-shaped plates 22 are fixedly installed on the upper surface of the rotating disk 8. The equidistant receiving grooves 29 are positioned on the upper surface of the rotating disk 8. The L-shaped plates 22 are installed on the upper surface of the rotating disk 8 to block the back of the workpiece to be welded, thus limiting its movement. Equally spaced fixing members 23 are fixedly connected to the upper surface of the rotating disk 8. Two damping rods 24 and two springs 25 are fixedly connected to the outer surface of each fixing member 23. The fixing members 23 are installed and fixed on the upper surface of the rotating disk 8 so that the rotating disk 8 can move the fixing members 23 when it rotates. The damping rods 24 and springs 25 are installed on the surface of the fixing members 23 to achieve the installation of the damping rods 24 and springs 25. The inner wall of the receiving groove 29 is slidably connected with clamping members 26. The other end of each damping rod 24 and spring 25 is fixedly connected to the outer surface of the corresponding clamping member 26. The clamping members 26 are provided on the inner wall of the receiving groove 29 and are set as sliding connections to limit the clamping members 26. The corresponding damping rod 24 and spring 25 are connected to the corresponding clamping members 26 so that the damping rod 24 and spring 25 can press the corresponding clamping members 26 tightly. The inner wall of the four clamping members 26 is threaded with bolts 27. The bottom end of each bolt 27 is fixedly connected with a rubber block 28. The bolts 27 are installed on the inner wall of the other four clamping members 26 to realize the installation of the bolts 27. The rubber block 28 is installed at the bottom end of the bolt 27. By rotating the bolt 27, the rubber block 28 is moved, thereby facilitating the adjustment of the position of the four clamping members 26.

[0030] The implementation principle of this application embodiment is as follows: When performing spot welding, the operator first moves the corresponding clamping member 26 to the designated position, and then rotates the corresponding bolt member 27 to make the rubber block 28 contact the receiving groove 29, thereby limiting the position of four clamping members 26. Then, the workpiece to be welded is placed on the corresponding workstation, and the damping rod 24 and spring 25 are used to tighten the other four clamping members 26, thereby enabling the other four clamping members 26 to clamp the workpiece to be welded. The back of the workpiece to be welded is limited by the L-shaped plate 22. Then, the indexing motor 2 is started to drive the limiting rod 7 and the rotating disk 8 to rotate, so that the corresponding workstation on the rotating disk 8 drives the workpiece to be welded to rotate to the spot welding area, thereby realizing the continuous switching of the four workstations. During spot welding, the telescopic rod 16 is activated to make the workpiece to be welded rotate to the spot welding area. The upper electrode module 6 descends, pressing against the workpiece to be welded. Under the action of damping rod 10 and spring 11, the rotating disk 8 and the ring 9 descend until the welding needle of the upper electrode module 6, the workpiece to be welded, and the welding needle of the lower electrode module 5 come into contact, completing the spot welding. This allows the device to achieve multi-station switching and continuous operation without affecting the spot welding work, thus improving the spot welding efficiency. After the workpiece to be welded is spot welded, it is rotated to the front position, and the operator removes the workpiece. At this time, the debris can fall through the through hole on the surface of the rotating disk 8 to the collection shell 17 below, and is finally collected by the collection cylinder 18. By setting the magnetic connection of magnetic block 19 and magnetic block 21, the debris collected in the collection cylinder 18 can be quickly removed.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. Spot welder comprising a mounting plate (1) and a machine body (4), characterised in that: The back of the mounting plate (1) is fixedly installed on the front of the body (4). The front of the body (4) is provided with a lower electrode module (5) and an upper electrode module (6). A connecting arm (15) is fixedly connected to the front of the body (4). A telescopic rod (16) is fixedly installed on the upper surface of the connecting arm (15). The output end of the telescopic rod (16) is fixedly installed on the upper surface of the upper electrode module (6). The bottom surface of the mounting plate (1) is fixedly connected to an indexing motor (2), the output shaft of the indexing motor (2) is fixedly connected to a limit rod (7), the outer surface of the limit rod (7) is slidably connected to a rotating disk (8), the upper surface of the rotating disk (8) is provided with through holes arranged at equal intervals, the upper surface of the mounting plate (1) is fixedly installed with an annular shell (3), the inner wall of the annular shell (3) is slidably connected to an annular component (9), the bottom surface of the annular component (9) is fixedly connected to a damping rod (10) arranged at equal intervals, the bottom surface of the annular component (9) is fixedly connected to a spring (11) arranged at equal intervals, and the bottom end of each damping rod (10) and spring (11) is fixedly connected to the upper surface of the mounting plate (1).

2. A spot welder according to claim 1, characterised in that: A base plate (12) is fixedly installed on the bottom surface of the body (4). Two support rods (13) are fixedly connected to the inner wall of the base plate (12). The top of each support rod (13) is fixedly connected to the bottom surface of the mounting plate (1). A control module (14) is fixedly installed on the right side of the body (4).

3. A spot welder as claimed in claim 1 wherein: The bottom surface of the mounting plate (1) is fixedly mounted with a collection shell (17), and two mounting blocks (20) are fixedly mounted on the outer surface of the collection shell (17). Two magnetic blocks (21) are fixedly mounted on the left side of each mounting block (20).

4. A spot welder according to claim 3 wherein: The inner wall of the collection shell (17) is slidably provided with a collection cylinder (18), and a magnetic suction block (19) arranged at equal intervals is fixedly installed on the right side of the collection cylinder (18).

5. A spot welder as claimed in claim 1 wherein: The upper surface of the rotating disk (8) is fixedly equipped with L-shaped plates (22) arranged at equal intervals.

6. A spot welder as claimed in claim 1 wherein: The upper surface of the rotating disk (8) is fixedly connected with equidistantly arranged fasteners (23), and the outer surface of each fastener (23) is fixedly connected with two damping rods (24) and two springs (25).

7. A spot welder according to claim 6 wherein: The upper surface of the rotating disk (8) is provided with equidistantly arranged receiving grooves (29), and each receiving groove (29) has a clamping member (26) slidably connected to its inner wall. The other end of each damping rod (24) and spring (25) is fixedly connected to the outer surface of the corresponding clamping member (26).

8. A spot welder according to claim 7, characterised in that: The inner walls of the four clamping members (26) are threaded with bolts (27), and the bottom end of each bolt (27) is fixedly connected with a rubber block (28).

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