DSP high-frequency inverter table type micro spot welding machine

Abstract

The application discloses a DSP high-frequency inverter table type micro spot welding machine and relates to the technical field of electric welding machines.The machine tool is internally fixedly installed with a welding main machine, the inner wall bottom of the machine tool is fixedly installed with a linear driving mechanism, the output end of the linear driving mechanism is fixedly installed with a spot welding machine main body, the outer side wall of the machine tool is fixedly installed with a heat dissipation device, the top of the machine tool is fixedly installed with a three-color lamp, the inner wall bottom of the machine tool is fixedly installed with a rectangular plate, one side of the rectangular plate close to the spot welding machine main body is provided with a rectangular groove, the fixing device comprises a pull rod, a carrying table, a loading disc, a welding piece, a sliding table, a flexible block, a tungsten filament, a linkage plate, a rubber plate, a pushing plate, a No.1 spring and a limiting rod, the welding piece and the tungsten filament are attached by standard operation, the angle of attachment can be adjusted by the operator in a safe area, and the quality of spot welding is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric welding machines, in particular to a DSP high-frequency inverter table type micro spot welding machine. BACKGROUND

[0002] The DSP high-frequency inverter table type micro spot welding machine is an electrical device for precise spot welding, widely used in electronic, automotive, metal processing and other industries.

[0003] The patent with patent announcement number CN219254456U relates to a positioning structure for a table type spot welding machine, which includes a workbench, and the top of the workbench is fixedly connected with a top frame. The patent relates to the technical field of spot welding machines. The positioning structure for the table type spot welding machine is provided with two positioning grooves between two positioning blocks, so that the workpiece can be positioned and placed by being placed in the positioning grooves, and the two sides of the workpiece in the positioning grooves can be firmly fixed by the mutual displacement of the positioning blocks driven by the sliding blocks in the sliding grooves through the extension and retraction power of the two second hydraulic rods, so that the welding point can accurately and stably correspond to the electrode rod. Through the coordinated extension and retraction of the two second hydraulic rods, the workpiece can flexibly adjust the horizontal position of the welding point. The above solves the problem that the traditional spot welding machine is often manually held for spot welding during use, which not only has certain risks, but also cannot accurately position the welding point.

[0004] In the above-mentioned patent, the problem that the traditional spot welding machine is often manually held for spot welding during use, which not only has certain risks, but also cannot accurately position the welding point, is solved. However, when spot welding the welding piece and the tungsten wire, the electrode of the tungsten wire needs to be in close contact with the welding piece, and the space is limited and the danger is high when fixed and adjusted in the spot welding area, which is not conducive to the spot welding of the welding machine and the tungsten wire. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a DSP high-frequency inverter table type micro spot welding machine, which solves the problems raised in the background art.

[0006] To achieve the above object, the present application is implemented by the following technical solutions: A DSP high-frequency inverter table type micro spot welding machine, comprising a machine tool, a welding main machine is fixedly installed inside the machine tool, a linear drive mechanism is fixedly installed at the bottom of the inner wall of the machine tool, a spot welding machine body is fixedly installed at the output end of the linear drive mechanism, a heat dissipation device is fixedly installed on the outer wall of the machine tool, a three-color lamp is fixedly installed at the top of the machine tool, a rectangular plate is fixedly installed at the bottom of the inner wall of the machine tool, a rectangular groove is formed in one side of the rectangular plate close to the spot welding machine body, and a fixing device is further included; wherein the fixing device comprises a pull rod, a carrying table, a loading disc, a welding part, a sliding table, a flexible block, a tungsten wire, a linkage plate, a rubber plate, a push plate, a first spring and a limiting rod, the push plate is pulled to move upward, the push plate moves to extrude the first spring, the first spring is deformed under extrusion, the pull rod is slidably penetrated in one side of the rectangular plate away from the linear drive mechanism, the carrying table is fixedly installed on the circumferential surface of the pull rod, the loading disc is fixedly penetrated at the top of the carrying table, the welding part is arranged in the interior of the loading disc, the welding part comprises a ceramic base and an electrode, the ceramic base is arranged in the interior of the loading disc, the electrode is fixedly installed on the surface of the ceramic base, the sliding table is slidably penetrated at the top of the carrying table, the flexible block is fixedly installed on the inner wall of the sliding table, a hole groove is formed in the flexible block, the tungsten wire is arranged in the interior of the hole groove, the linkage plate is fixedly installed on the circumferential surface of the pull rod, the rubber plate is rotatably installed on the inner wall of the loading disc, the push plate is slidably penetrated in the inner and outer walls of the sliding table, the first spring is arranged between the push plate and the sliding table, the limiting rod is fixedly installed at the bottom of the push plate, a circular hole is formed in the bottom of the loading disc, the electrode at the bottom of the welding part is in contact with the inner wall of the circular hole, the welding part is moved above the loading disc, the electrode is aligned with the circular hole and then put into the interior of the loading disc, the circumferential surface of the electrode passes through the circular hole in the moving process, and a clamping groove is formed in the circumferential surface of the flexible block.

[0007] According to the above technical solutions, a first vortex spring is arranged between the rubber plate and the loading disc, the ceramic base moves to apply a pushing force to the rubber plate, the rubber plate moves away from the welding part under the action of the pushing force, the rubber plate rotates to stretch the first vortex spring, and one side of the rubber plate close to the welding part is in contact with the circumferential surface of the ceramic base.

[0008] According to the above technical solutions, a limiting groove is formed in the top of the carrying table, the limiting rod is in contact with the inner wall of the limiting groove, the push plate moves to drive the limiting rod to move upward, the limiting rod moves away from the limiting groove, and the limiting of the carrying table to the sliding table is released, and one side of the linkage plate close to the rectangular plate is provided with an inclined surface one.

[0009] According to the above technical solution, the device further includes a locking device and a protective device; the locking device includes a hollow plate, a lifting plate, a first spring, a blocking block, a second spring, a round rod, a pressing plate, a C-shaped plate, and a third spring. The blocking block moves and presses the second spring, causing the second spring to deform under pressure. The hollow plate is fixedly inserted through the side of the rectangular plate away from the linear drive mechanism. A groove is provided on the side of the hollow plate away from the mounting platform. The lifting plate slides through the inner and outer walls of the hollow plate. An arc surface is provided on the inner wall of the lifting plate. The first spring is positioned between the lifting plate and the hollow plate. The blocking block slides through the inner and outer walls of the lifting plate. The second spring is fixedly installed on the outer wall of the lifting plate away from the first arc surface. The round rod is fixedly installed on the inner wall of the lifting plate. The pressing plate is fixedly installed on the side of the lifting plate near the slide groove. The C-shaped plate slides through the inner and outer walls of the pressing plate. The third spring is set between the C-shaped plate and the pressing plate. The side of the blocking block away from the second spring has an arc surface two. The inclined surface one of the linkage plate contacts the arc surface two of the blocking block during the movement. The movement of the inclined surface one applies pressure to the arc surface two. The pressing plate contacts the inner wall of the slide groove.

[0010] According to the above technical solution, the side of the blocking block near the second spring sheet has an arc surface three. The arc surface three contacts the second spring sheet. The arc surface three of the blocking block moves and stretches the second spring sheet, and the second spring sheet is squeezed and deformed.

[0011] According to the above technical solution, a docking groove is provided on the inner wall of the hollow plate near the C-shaped plate. The side of the C-shaped plate near the hollow plate contacts the inner wall of the docking groove. During the movement, the surface of the C-shaped plate that contacts the docking groove separates, thereby releasing the limiting effect of the hollow plate on the lifting plate.

[0012] According to the above technical solution, the protective device includes a mounting frame, a contact plate, a second spring, a connecting frame, an elastic sheet, an L-shaped plate, and a comb plate. The contact plate moves and compresses the second spring, causing the second spring to deform under compression. The mounting frame is fixedly installed on the top of the inner wall of the hollow plate. The contact plate slides through the inner wall of the mounting frame. The second spring is disposed between the contact plate and the mounting frame. The connecting frame is fixedly installed on the side of the contact plate near the first spring. The elastic sheet is rotatably installed on the inner wall of the connecting frame. The L-shaped plate is fixedly installed on the side of the connecting frame away from the contact plate. The comb plate is fixedly installed on the inner wall of the mounting frame. A groove is provided on the top of the contact plate. The circumferential surface of the round rod moves downward and contacts the groove. The movement of the round rod applies downward pressure to the groove, causing the contact plate to move downward under the influence of the pressure. A second spiral spring is disposed between the elastic sheet and the connecting frame.

[0013] According to the above technical solution, the side of the L-shaped plate away from the contact plate contacts the top of the elastic sheet, and the side of the comb plate close to the elastic sheet has an arc surface four. During the movement, the elastic sheet contacts the arc surface four of the comb plate. Since the upward rotation of the elastic sheet is restricted by the L-shaped plate, the arc surface four blocks the moving elastic sheet.

[0014] This invention provides a DSP high-frequency inverter benchtop miniature spot welding machine. It has the following beneficial effects:

[0015] (1) The DSP high frequency inverter desktop micro spot welding machine has a first spiral spring that applies a reaction force to the rubber plate. Under the action of the reaction force, the rubber plate applies pressure to the welding part. By rotating the rubber plate, a stable pressure is applied to the welding part, which is convenient for the operator to fix quickly and can effectively reduce the deflection of the welding part during the movement and welding process. The limit rod and the limit groove are separated, so that the limit applied by the mounting table to the sliding table is released. By standard operation, the welding part and the tungsten wire are bonded together, and the operator can adjust the bonding angle in a safe area, which helps to improve the quality of spot welding.

[0016] (2) In this DSP high-frequency inverter desktop micro spot welding machine, the blocking block and the linkage plate are in contact on the side away from the arc surface, so that the blocking block applies a limit to the movement of the linkage plate. When the linkage plate is moved to the predetermined position by the pull rod, the blocking block automatically limits the linkage plate, which reduces the operating burden and avoids the situation where the pull rod is accidentally touched and moves during the spot welding process. The contact surfaces of the blocking block and the linkage plate are separated, so that the limit applied by the blocking block to the linkage plate is released. The limit applied by the blocking block can only be released quickly through multiple standardized operations, which reduces the error during operation and improves the safety of operation.

[0017] (3) In this DSP high-frequency inverter desktop micro spot welding machine, the comb plate transmits the vibration to the round rod under the action of resonance, so that the lifting plate is affected by vibration when it moves downward. The intermittent vibration is generated by the collision between the elastic plate and the comb plate, and then the intermittent vibration is transmitted to the lifting plate, which helps to improve the smoothness of the lifting plate movement and avoid the lifting plate from jamming. The arc surface four applies resistance to the moving elastic plate. The elastic plate rotates downward due to the resistance. When the top of the elastic plate contacts the arc surface four, it rotates to avoid deformation and ensures that the lifting plate is not affected by additional resistance when it is reset upward. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the machine tool of the present invention;

[0021] Figure 4 This is a schematic diagram of the rectangular plate and tie rod positions of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the fixing device of the present invention;

[0023] Figure 6 This is a schematic diagram showing the position and structure of the linkage plate and the blocking block in this invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the locking device and the protective device of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Machine tool; 2. Welding host; 3. Linear drive mechanism; 4. Spot welding machine body; 5. Heat dissipation device; 6. Three-color lamp; 7. Rectangular plate; 8. Tie rod; 9. Mounting platform; 10. Loading tray; 11. Welded part; 12. Sliding table; 13. Flexible block; 14. Tungsten wire; 15. Linkage plate; 16. Rubber plate; 17. Push plate; 18. Spring No. 1; 19. Limiting rod; 201. Hollow plate; 202. Lifting plate; 203. Spring No. 1; 204. Blocking block; 205. Spring No. 2; 206. Round rod; 207. Pressing plate; 208. C-shaped plate; 209. Spring No. 3; 211. Mounting frame; 212. Contact plate; 213. Spring No. 2; 214. Connecting frame; 215. Elastic sheet; 216. L-shaped plate; 217. Comb plate. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8One embodiment of the present invention is as follows: a DSP high-frequency inverter desktop micro spot welding machine, comprising a machine tool 1, a welding host 2 fixedly installed inside the machine tool 1, a linear drive mechanism 3 fixedly installed at the bottom of the inner wall of the machine tool 1, a spot welding machine body 4 fixedly installed at the output end of the linear drive mechanism 3, a heat dissipation device 5 fixedly installed on the outer wall of the machine tool 1, a three-color lamp 6 fixedly installed on the top of the machine tool 1, a rectangular plate 7 fixedly installed at the bottom of the inner wall of the machine tool 1, a rectangular groove opened on the side of the rectangular plate 7 near the spot welding machine body 4, and a fixing device; wherein, the fixing device includes a pull rod 8, a mounting platform 9, a loading tray 10, a welding part 11, a sliding table 12, a flexible block 13, a tungsten wire 14, a linkage plate 15, a rubber plate 16, a push plate 17, a first spring 18, and a limiting rod 19, the pull rod 8 slidingly passing through the side of the rectangular plate 7 away from the linear drive mechanism 3, the mounting platform 9 fixedly installed on the circumferential surface of the pull rod 8, the loading tray 10 fixedly passing through the top of the mounting platform 9, and the welding part 1... 1. The welding component 11, which includes a ceramic base and an electrode, is set inside the loading tray 10. The electrode is fixedly installed on the surface of the ceramic base. The sliding table 12 slides through the top of the loading platform 9. The flexible block 13 is fixedly installed on the inner wall of the sliding table 12. The flexible block 13 has a slot. The tungsten wire 14 is set inside the slot. The linkage plate 15 is fixedly installed on the circumferential surface of the pull rod 8. The rubber plate 16 is rotatably installed on the inner wall of the loading tray 10. The push plate 17 slides through the inner and outer walls of the sliding table 12. The first spring 18 is set between the push plate 17 and the sliding table 12. The limit rod 19 is fixedly installed on the bottom of the push plate 17. The bottom of the loading tray 10 has a round hole. The electrode at the bottom of the welding component 11 contacts the inner wall of the round hole. The circumferential surface of the flexible block 13 has a slot. By moving the tungsten wire 14 directly into the flexible block 13 for fixing, the installation time is effectively saved and the operator can easily adjust the position and angle of the tungsten wire 14.

[0029] A spiral spring is provided between the rubber plate 16 and the loading plate 10. The side of the rubber plate 16 near the welded part 11 contacts the circumferential surface of the ceramic base. By rotating the rubber plate 16, a stable pressure is applied to the welded part 11, which can effectively reduce the deflection of the welded part 11 during movement and welding.

[0030] A limiting groove is provided on the top of the mounting platform 9, and the limiting rod 19 contacts the inner wall of the limiting groove. The side of the linkage plate 15 near the rectangular plate 7 has an inclined surface. By following the standard operation, the welding parts 11 and tungsten wire 14 are bonded together, and the operator can easily adjust the bonding angle in a safe area, which helps to improve the quality of spot welding.

[0031] In this embodiment, during operation, the weldment 11 is moved above the loading disk 10. The electrode is aligned with the circular hole and placed inside the loading disk 10. The circumferential surface of the electrode passes through the circular hole during movement. Simultaneously, the ceramic base of the weldment 11 contacts the side of the rubber plate 16 away from the loading disk 10 during movement. The movement of the ceramic base applies a pushing force to the rubber plate 16. Under the action of this pushing force, the rubber plate 16 moves away from the weldment 11. The rubber plate 16 rotates, stretching the first spiral spring. The first spiral spring deforms under the stretching force, and the deformed first spiral spring applies a reaction force to the rubber plate 16. Under the action of this reaction force, the rubber plate 16 applies pressure to the weldment 11. After the weldment 11 is placed, the tungsten wire 14 is moved to the slot of the flexible block 13. The moving tungsten wire 14 moves towards the center of the flexible block 13. During the movement, the circumferential surface of the tungsten wire 14 contacts the inner wall of the slot. Since the radius of the tungsten wire 14 is larger than the size of the slot, the moving tungsten wire 14 presses against the flexible block 13, causing the flexible block 13 to deform under pressure. The tungsten wire 14 continues to move and contacts the inner wall of the slot, thus being limited by the flexible block 13. Simultaneously, the rotating rubber plate 16 applies stable pressure to the welded part 11, effectively reducing the deflection of the welded part 11 during movement and welding. After the tungsten wire 14 is fixed, the push plate 17 is pulled upward. The push plate 17 presses against the first spring 18, causing the first spring 18 to deform under pressure. At the same time, the moving push plate 17 drives the limiting rod 19 to move upward. The movement of the limiting rod 19 and the separation of the limiting groove releases the limiting effect exerted by the mounting platform 9 on the sliding platform 12, pulling the push plate 17 towards the loading tray 10. The movement of the push plate 17 causes the limiting rod 19 to move towards the loading tray 10, simultaneously causing the sliding platform 12 to move towards the loading tray 10. The movement of the sliding platform 12 causes the flexible block 13 to move towards the loading tray 10, and the movement of the flexible block 13 causes the tungsten wire 14 to move towards the loading tray 10. The tungsten wire 14 stops moving after reaching a predetermined position, and simultaneously contacts the circumferential surface of the electrode. The push plate 17 is released, and the deformed first spring 18 returns to its original state, causing the push plate 17 to move downwards. The movement of the push plate 17 causes the limiting rod 19 to move downwards, and the movement of the limiting rod 19 and the inner edge of the limiting groove... The wall contact causes the sliding table 12 to be limited by the mounting table 9. After the tungsten wire 14 makes stable contact with the welding part 11, the operator smoothly pushes the pull rod 8 to move towards the spot welding machine body 4. The movement of the pull rod 8 drives the linkage plate 15 to move towards the spot welding machine body 4. At the same time, the movement of the pull rod 8 drives the mounting table 9 to move towards the spot welding machine body 4. After the mounting table 9 moves to the predetermined position, the linear drive mechanism 3 is activated. The output end of the linear drive mechanism 3 moves and drives the spot welding machine body 4 to the appropriate position. The spot welding machine body 4 is then activated, allowing it to perform spot welding on the welding part 11 and the tungsten wire 14. By operating in a standardized manner to fit the welding part 11 and the tungsten wire 14 together, and by allowing the operator to adjust the fitting angle in a safe area, the quality of the spot welding can be improved.

[0032] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes a locking device and a protective device; the locking device includes a hollow plate 201, a lifting plate 202, a first spring 203, a blocking block 204, a second spring 205, a round rod 206, a pressing plate 207, a C-shaped plate 208, and a third spring 209. The hollow plate 201 is fixedly inserted through the side of the rectangular plate 7 away from the linear drive mechanism 3. A groove is provided on the side of the hollow plate 201 away from the mounting platform 9. The lifting plate 202 slides through the inner and outer walls of the hollow plate 201. An arc surface is provided on the inner wall of the lifting plate 202. The first spring 203 is disposed between the lifting plate 202 and the hollow plate 201. The blocking block 204 slides through the lifting plate 201. The inner and outer walls of plate 202 are as follows: the second spring piece 205 is fixedly installed on the outer wall of the lifting plate 202 away from the first arc surface; the round rod 206 is fixedly installed on the inner wall of the lifting plate 202; the pressing plate 207 is fixedly installed on the side of the lifting plate 202 near the slide groove; the C-shaped plate 208 slides through the inner and outer walls of the pressing plate 207; the third spring piece 209 is set between the C-shaped plate 208 and the pressing plate 207; the side of the blocking block 204 away from the second spring piece 205 has an arc surface two; the pressing plate 207 contacts the inner wall of the slide groove; when the pull rod 8 moves to the predetermined position, the blocking block 204 automatically limits the linkage plate 15, reducing the operating burden and preventing the pull rod 8 from being accidentally moved during the spot welding process.

[0033] The blocking block 204 has an arc surface three on the side near the second spring piece 205. The arc surface three contacts the second spring piece 205. By opening the arc surface three, it is ensured that the blocking block 204 can smoothly stretch the second spring piece 205 when it moves, which helps to ensure the smooth operation.

[0034] The hollow plate 201 has a mating groove on its inner wall near the C-shaped plate 208. The side of the C-shaped plate 208 near the hollow plate 201 contacts the inner wall of the mating groove. Only after multiple standardized operations can the limit applied by the blocking block 204 be quickly released, effectively improving the standardization of the operation process.

[0035] The protective device includes a mounting frame 211, a contact plate 212, a second spring 213, a connecting frame 214, an elastic sheet 215, an L-shaped plate 216, and a comb plate 217. The mounting frame 211 is fixedly installed on the top of the inner wall of the hollow plate 201. The contact plate 212 slides through the inner wall of the mounting frame 211. The second spring 213 is disposed between the contact plate 212 and the mounting frame 211. The connecting frame 214 is fixedly installed on the side of the contact plate 212 near the first elastic sheet 203. The elastic sheet 215... 5. The L-shaped plate 216 is fixedly installed on the side of the connecting frame 214 away from the contact plate 212. The comb plate 217 is fixedly installed on the inner wall of the mounting frame 211. The top of the contact plate 212 is provided with a groove. A second spiral spring is provided between the elastic sheet 215 and the connecting frame 214. The elastic sheet 215 and the comb plate 217 intermittently collide to generate vibration, and then transmit the vibration to the lifting plate 202, which helps to improve the smoothness of the movement of the lifting plate 202.

[0036] The side of the L-shaped plate 216 away from the contact plate 212 contacts the top of the elastic sheet 215. The side of the comb plate 217 near the elastic sheet 215 has an arc surface four. When the top of the elastic sheet 215 contacts the arc surface four, it rotates to prevent deformation and ensures that the lifting plate 202 will not be affected by additional resistance when it is reset upward.

[0037] In this embodiment, during operation, the inclined surface one of the linkage plate 15 contacts the arc surface two of the blocking block 204. The movement of the inclined surface one applies pressure to the arc surface two. Under the influence of this pressure, the blocking block 204 moves towards the second spring piece 205. The arc surface three of the blocking block 204 moves and stretches the second spring piece 205. The second spring piece 205 is deformed by compression. During the movement, the surfaces of the linkage plate 15 and the blocking block 204 separate, allowing the linkage plate 15 to continue moving and contacting the arc surface one. Simultaneously, the deformed second spring piece 205 recovers, causing the blocking block 204 to move towards it. During the reset process, the blocking block 204 contacts the side of the linkage plate 15 away from the arc surface one, thus limiting the movement of the linkage plate 15. When the pull rod 8 moves to the predetermined position, the blocking block 204 automatically limits the linkage plate 15, reducing the operational burden and preventing the pull rod 8 from being accidentally moved during spot welding. After spot welding is completed... Manually press the C-shaped plate 208 towards the pressing plate 207. The C-shaped plate 208 moves and squeezes the third spring piece 209. The third spring piece 209 deforms under the pressure. At the same time, the C-shaped plate 208 separates from the surface in contact with the docking groove during the movement, thus releasing the limit imposed by the hollow plate 201 on the lifting plate 202. This pushes the C-shaped plate 208 downward. The movement of the C-shaped plate 208 drives the pressing plate 207 downward. The movement of the pressing plate 207 drives the lifting plate 202 downward. The lifting plate 202 squeezes the first spring piece 203. The first spring piece 203 deforms under the pressure. At the same time, the movement of the lifting plate 202 drives the round rod 206 and the blocking block 204 downward. During the movement, the surface in contact with the linkage plate 15 of the blocking block 204 separates, thus releasing the limit imposed by the blocking block 204 on the linkage plate 15. By repeatedly performing standardized operations, the limit imposed by the blocking block 204 can be quickly released, effectively improving the standardization of the operation process.

[0038] The circumferential surface of the round rod 206 moves downward and contacts the groove. The movement of the round rod 206 applies downward pressure to the groove. The contact plate 212 moves downward under the influence of the pressure, compressing the second spring 213. The second spring 213 deforms under the compression. At the same time, the movement of the contact plate 212 drives the connecting frame 214 to move downward. The movement of the connecting frame 214 drives the elastic plate 215 to move downward. During the movement, the elastic plate 215 contacts the arc surface of the comb plate 217. Due to the upward rotation of the elastic plate 215, it is subjected to pressure from the L-shaped plate 217. The restriction imposed by the fourth arc surface causes the moving elastic plate 215 to be blocked, resulting in the elastic plate 215 continuing to move and deform. When the elastic plate 215 separates from the fourth arc surface, the deformed elastic plate 215 recovers under the action of elasticity. During the recovery, the elastic plate 215 collides with the second fourth arc surface, causing the fourth arc surface of the comb plate 217 to intermittently collide with the elastic plate 215, generating continuous vibration. Under the action of resonance, the comb plate 217 transmits the vibration to the round rod 206, so that the lifting plate 202 is affected by the vibration when it moves downward. The intermittent collision between the elastic plate 215 and the comb plate 217 generates vibration, which is then transmitted to the lifting plate 202, helping to improve the smoothness of the movement of the lifting plate 202. When the round rod 206 returns to its original position, the applied pressure is gradually reduced, causing the deformed second spring 213 to return to its original state, which in turn drives the contact plate 212 to move upward. The movement of the contact plate 212 drives the connecting frame 214 to move upward, and the movement of the connecting frame 214 drives the elastic plate 215 to move upward. The top of the elastic plate 215 contacts the arc surface 4 during the movement, and the arc surface 4 contacts the moving elastic plate 215. 5. When resistance is applied, the elastic plate 215 rotates downward due to the resistance. The rotation of the elastic plate 215 stretches the second spiral spring, causing the second spiral spring to deform. At the same time, the contact surface between the elastic plate 215 and the L-shaped plate 216 separates. The elastic plate 215 continues to move and separates from the contact surface of the arc surface four. The deformed second spiral spring returns to its original position, causing the elastic plate 215 to rotate back to its initial position. The rotation of the elastic plate 215 when its top contacts the arc surface four avoids deformation, ensuring that the lifting plate 202 is not affected by additional resistance when it returns to its upward position.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DSP high-frequency inverter benchtop miniature spot welding machine, comprising a machine tool, characterized in that: The machine tool is equipped with a welding host fixedly installed inside, a linear drive mechanism fixedly installed at the bottom of the inner wall of the machine tool, a spot welding machine body fixedly installed at the output end of the linear drive mechanism, a heat dissipation device fixedly installed on the outer wall of the machine tool, a three-color lamp fixedly installed on the top of the machine tool, a rectangular plate fixedly installed at the bottom of the inner wall of the machine tool, a rectangular groove opened on the side of the rectangular plate near the spot welding machine body, and also includes a fixing device, a locking device and a protective device; The fixing device includes a pull rod, a mounting platform, a loading tray, a welded component, a sliding table, a flexible block, a tungsten wire, a linkage plate, a rubber plate, a push plate, a No. 1 spring, and a limit rod. The pull rod slides through the side of the rectangular plate away from the linear drive mechanism. The mounting platform is fixedly installed on the circumference of the pull rod. The loading tray is fixedly installed through the top of the mounting platform. The welded component is located inside the loading tray and includes a ceramic base and an electrode. The ceramic base is located inside the loading tray, and the electrode is fixedly installed on the surface of the ceramic base. The sliding table slides through... The flexible block is fixedly installed on the inner wall of the sliding table and is mounted on the top of the mounting platform. The flexible block has a slot, and the tungsten wire is placed inside the slot. The linkage plate is fixedly installed on the circumferential surface of the pull rod. The rubber plate is rotatably installed on the inner wall of the loading plate. The push plate slides through the inner and outer walls of the sliding table. The first spring is placed between the push plate and the sliding table. The limit rod is fixedly installed on the bottom of the push plate. The bottom of the loading plate has a circular hole. The electrode at the bottom of the welded part contacts the inner wall of the circular hole. The circumferential surface of the flexible block has a slot. A first spiral spring is provided between the rubber plate and the loading plate, and the side of the rubber plate near the welded part contacts the circumferential surface of the ceramic base. The top of the mounting platform is provided with a limiting groove, the limiting rod is in contact with the inner wall of the limiting groove, and the side of the linkage plate near the rectangular plate is provided with an inclined surface. The locking device includes a hollow plate, a lifting plate, a first spring, a blocking block, a second spring, a round rod, a pressing plate, a C-shaped plate, and a third spring. The hollow plate is fixedly inserted through the side of the rectangular plate away from the linear drive mechanism. A groove is formed on the side of the hollow plate away from the mounting platform. The lifting plate slides through the inner and outer walls of the hollow plate. An arc surface is formed on the inner wall of the lifting plate. The first spring is disposed between the lifting plate and the hollow plate. The blocking block slides through the inner and outer walls of the lifting plate. The second spring is fixedly installed on the outer wall of the lifting plate away from the first arc surface. The round rod is fixedly installed on the inner wall of the lifting plate. The pressing plate is fixedly installed on the side of the lifting plate near the groove. The C-shaped plate slides through the inner and outer walls of the pressing plate. The third spring is disposed between the C-shaped plate and the pressing plate. An arc surface is formed on the side of the blocking block away from the second spring. The pressing plate is in contact with the inner wall of the groove. The blocking block has an arc surface three on the side near the second spring piece, and the arc surface three contacts the second spring piece; The hollow plate has a mating groove on its inner wall near the C-shaped plate, and the side of the C-shaped plate near the hollow plate is in contact with the inner wall of the mating groove. The protective device includes a mounting frame, a contact plate, a second spring, a connecting frame, an elastic sheet, an L-shaped plate, and a comb plate. The mounting frame is fixedly installed on the top of the inner wall of the hollow plate. The contact plate slides through the inner wall of the mounting frame. The second spring is disposed between the contact plate and the mounting frame. The connecting frame is fixedly installed on the side of the contact plate near the first elastic sheet. The elastic sheet is rotatably installed on the inner wall of the connecting frame. The L-shaped plate is fixedly installed on the side of the connecting frame away from the contact plate. The comb plate is fixedly installed on the inner wall of the mounting frame. A groove is provided on the top of the contact plate. A second spiral spring is disposed between the elastic sheet and the connecting frame. The side of the L-shaped plate away from the contact plate contacts the top of the elastic sheet, and the side of the comb plate near the elastic sheet has an arc surface.

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