Digital signal processor (DSP) high-frequency inverter table type miniature spot welding machine

Abstract

The invention discloses a DSP (Digital Signal Processor) high-frequency inverter table type miniature spot welding machine, which relates to the technical field of electric welding machines, and comprises a machine tool, a welding host is fixedly mounted in the machine tool, a linear driving mechanism is fixedly mounted at the bottom of the inner wall of the machine tool, and a spot welding machine main body is fixedly mounted at the output end of the linear driving mechanism; a heat dissipation device is fixedly installed on the outer side 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, and a rectangular groove is formed in the face, close to the spot welding machine body, of the rectangular plate. 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 first spring and a limiting rod, the welding piece and the tungsten filament are attached through standard operation, an operator can conveniently adjust the attaching angle in a safe area, and the spot welding quality can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric welding machines, in particular to a DSP high-frequency inverter desktop micro spot welding machine. Background Art

[0002] DSP high frequency inverter desktop micro spot welding machine is an electrical device used for precise spot welding, widely used in electronics, automobile, metal processing and other industries.

[0003] The patent with patent announcement number CN219254456U relates to a positioning structure for a desktop spot welding machine, including a workbench, the top of which is fixedly connected to a top frame. The patent relates to the technical field of spot welding machines. The positioning structure for the desktop spot welding machine, by arranging two positioning grooves between two positioning blocks, allows the workpiece to be positioned and placed by placing it inside the positioning groove, and the mutual displacement clamping of the positioning blocks driven by the sliding of the sliding blocks in the sliding grooves through the telescopic power of the two second hydraulic rods, so that the two sides of the workpiece in the positioning groove can be firmly fixed, so that the welding point can accurately and firmly correspond to the welding of the electrode rod, and the coordinated telescopic of the two second hydraulic rods allows the workpiece to flexibly adjust the lateral position of the welding point left and right. In summary, the problem that the traditional spot welding machine often manually holds the workpiece for spot welding during use is not only dangerous, but also may not accurately position the welding point.

[0004] The above patent solves the problem that traditional spot welding machines often manually hold the workpiece for spot welding during use, which not only poses certain risks but also may not accurately locate the welding point. However, when spot welding the weldment and the tungsten wire, the tungsten wire needs to be fitted with the electrode of the weldment, and fixed and adjusted in the spot welding area. The space is limited and the risk is high, which is not conducive to spot welding between the welding machine and the tungsten wire. Summary of the invention

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

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a DSP high-frequency inverter desktop micro spot welding machine, including a machine tool, a welding host 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 on 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 opened on one side of the rectangular plate close to the spot welding machine body, and a fixing device is also included; wherein, the fixing device includes a pull rod, a carrying platform, a loading plate, a welding part, a sliding platform, a flexible block, a tungsten wire, a linkage plate, a rubber plate, a push plate, a No. 1 spring and a limit rod, the push plate is pulled to move upward, the push plate moves to squeeze the No. 1 spring, and the No. 1 spring is squeezed and deformed, the pull rod slides through the side of the rectangular plate away from the linear drive mechanism, and the carrying platform is fixedly installed on the circumferential surface of the pull rod, The loading tray is fixedly installed on the top of the loading platform, the welding part is arranged inside the loading tray, the welding part includes a ceramic base and an electrode, the ceramic base is arranged inside the loading tray, the electrode is fixedly installed on the surface of the ceramic base, the sliding platform slides through the top of the loading platform, the flexible block is fixedly installed on the inner wall of the sliding platform, a hole groove is provided on the flexible block, the tungsten wire is arranged inside 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 tray, the push plate slides through the inner and outer walls of the sliding platform, the No. 1 spring is arranged between the push plate and the sliding platform, the limit rod is fixedly installed on the bottom of the push plate, the bottom of the loading tray is provided with a circular hole, the electrode at the bottom of the welding part contacts the inner wall of the circular hole, the welding part is moved to the top of the loading tray, the electrode is aligned with the circular hole and then placed into the interior of the loading tray, the circumferential surface of the electrode passes through the circular hole during the movement, and the circumferential surface of the flexible block is provided with a card groove.

[0007] According to the above technical solution, a No. 1 scroll spring is arranged between the rubber plate and the loading plate. The ceramic base moves to exert thrust on the rubber plate. Under the action of the thrust, the rubber plate moves away from the welding part. The rubber plate rotates to stretch the No. 1 scroll spring. The side of the rubber plate close to the welding part contacts the circumferential surface of the ceramic base.

[0008] According to the above technical solution, a limiting groove is provided on the top of the carrying platform, and the limiting rod is in contact with the inner wall of the limiting groove. The movement of the pushing plate drives the limiting rod to move upward, and the limiting rod moves and separates from the limiting groove, so that the limiting effect of the carrying platform on the sliding platform is released, and a slope is provided on one side of the linkage plate close to the rectangular plate.

[0009] According to the above technical scheme, it also includes a locking device and a protective device; the locking device includes a hollow plate, a lifting plate, a No. 1 spring piece, a blocking block, a No. 2 spring piece, a round rod, a pressing plate, a C-shaped plate and a No. 3 spring piece, the blocking block moves to squeeze the No. 2 spring piece, and the No. 2 spring piece is deformed by the squeezing, the hollow plate is fixedly penetrated through the side of the rectangular plate away from the linear drive mechanism, the side of the hollow plate away from the loading platform is provided with a sliding groove, the lifting plate slides through the inner and outer walls of the hollow plate, the inner wall of the lifting plate is provided with an arc surface, and the No. 1 spring piece is arranged between the lifting plate and the hollow plate The blocking block slides through the inner and outer walls of the lifting plate, the No. 2 spring piece is fixedly installed on the outer side wall of the lifting plate away from the arc surface one, 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 close to the slide groove, the C-shaped plate slides through the inner and outer walls of the pressing plate, the No. 3 spring piece is arranged between the C-shaped plate and the pressing plate, and the side of the blocking block away from the No. 2 spring piece is provided with an arc surface two, and the inclined surface one of the linkage plate contacts the arc surface two of the blocking block during the movement, and the inclined surface one moves to apply pressure to the arc surface two, and the pressing plate contacts the inner wall of the slide groove.

[0010] According to the above technical solution, the blocking block has an arc surface three on one side close to the second spring sheet, and the arc surface three contacts the second spring sheet. The arc surface three of the blocking block moves to stretch 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 close to the C-shaped plate, and one side of the C-shaped plate close to the hollow plate contacts the inner wall of the docking groove. The surface of the C-shaped plate in contact with the docking groove is separated during the movement, so that the limit imposed by the hollow plate on the lifting plate is released.

[0012] According to the above technical scheme, the protective device includes a carrying frame, a contact plate, a No. 2 spring, a connecting frame, an elastic sheet, an L-shaped plate and a comb plate. The contact plate moves to squeeze the No. 2 spring, and the No. 2 spring is deformed by the squeezing. The carrying frame is fixedly installed on the top of the inner wall of the hollow plate, and the contact plate slides through the inner wall of the carrying frame. The No. 2 spring is arranged between the contact plate and the carrying frame. The connecting frame is fixedly installed on a side of the contact plate close to the No. 1 spring sheet, and the elastic sheet is rotatably installed on the inner wall of the connecting frame. The L-shaped plate is fixedly installed on a side of the connecting frame away from the contact plate, and the comb plate is fixedly installed on the inner wall of the carrying frame. A groove is provided on the top of the contact plate, and the circumferential surface of the round rod moves downward and contacts with the groove. The round rod moves to apply downward pressure on the groove, and the contact plate moves downward under the influence of the pressure. A No. 2 spiral spring is arranged 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 is provided with an arc surface four. The elastic sheet contacts the arc surface four of the comb plate during movement. 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] The present invention provides a DSP high-frequency inverter desktop micro spot welding machine. It has the following beneficial effects: (1) In this DSP high-frequency inverter desktop micro spot welding machine, the No. 1 scroll spring exerts a reaction force on the rubber plate. Under the action of the reaction force, the rubber plate exerts pressure on the weldment. The rubber plate rotates and exerts stable pressure on the weldment, which is convenient for operators to quickly fix the weldment. It can effectively reduce the deflection of the weldment during movement and welding. The limit rod and the limit groove are separated, so that the limit imposed by the mounting table on the sliding table is released. Through standardized operation, the weldment and the tungsten wire are fitted together, and it is convenient for operators to adjust the fitting angle in a safe area, which helps to improve the quality of spot welding.

[0015] (2) In this DSP high-frequency inverter desktop micro spot welding machine, the blocking block and the side of the linkage plate away from the arc surface are in contact, so that the blocking block imposes a limit on the movement of the linkage plate. When the pull rod moves to a predetermined position, the blocking block automatically limits the linkage plate, which reduces the operating burden and prevents the pull rod from being accidentally touched and moved during the spot welding process. The contact surface between the blocking block and the linkage plate is separated, so that the limit imposed by the blocking block on the linkage plate is released. The limit imposed by the blocking block can only be quickly released through multiple standardized operations, which reduces the possibility of errors during operation and improves the safety of operation.

[0016] (3) In this DSP high-frequency inverter desktop micro spot welding machine, the comb plate transmits vibration to the round rod under the action of resonance, so that the lifting plate is affected by the vibration when it moves downward, and intermittent vibration is generated by the collision between the elastic sheet and the comb plate, and then the intermittent vibration is transmitted to the lifting plate, which helps to improve the smoothness of the movement of the lifting plate and avoid the lifting plate from getting stuck. The arc surface four applies resistance to the moving elastic sheet. The elastic sheet rotates downward under the influence of the resistance, and the top of the elastic sheet rotates when it contacts the arc surface four to avoid deformation, ensuring that the lifting plate will not be affected by additional resistance when it resets upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the machine tool of the present invention; Figure 4 It is a schematic diagram of the rectangular plate and the pull rod position structure of the present invention; Figure 5 It is a schematic diagram of the internal structure of the fixing device of the present invention; Figure 6 This is a schematic diagram of the position structure of the linkage plate and the blocking block of the present invention; Figure 7 It is a schematic diagram of the internal structure of the locking device and the protective device of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0018] In the figure: 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. pull rod; 9. carrying platform; 10. loading plate; 11. welding piece; 12. sliding table; 13. flexible block; 14. tungsten wire; 15. linkage plate; 16. rubber plate; 17. push plate; 18. spring No. 1; 19. limit 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. carrying frame; 212. contact plate; 213. spring No. 2; 214. connecting frame; 215. elastic sheet; 216. L-shaped plate; 217. comb plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 8, one embodiment of the present invention is: a DSP high-frequency inverter desktop micro spot welding machine, including a machine tool 1, a welding host 2 is fixedly installed inside the machine tool 1, a linear drive mechanism 3 is fixedly installed at the bottom of the inner wall of the machine tool 1, a spot welding machine body 4 is fixedly installed at the output end of the linear drive mechanism 3, a heat dissipation device 5 is fixedly installed on the outer wall of the machine tool 1, a three-color lamp 6 is fixedly installed on the top of the machine tool 1, a rectangular plate 7 is fixedly installed at the bottom of the inner wall of the machine tool 1, and a rectangular groove is opened on the side of the rectangular plate 7 close to the spot welding machine body 4, and also includes a fixing device; wherein the fixing device includes a pull rod 8, a carrying platform 9, a loading tray 10, a welding piece 11, a sliding platform 12, a flexible block 13, a tungsten wire 14, a linkage plate 15, a rubber plate 16, a push plate 17, a No. 1 spring 18 and a limit rod 19, the pull rod 8 slides through the side of the rectangular plate 7 away from the linear drive mechanism 3, the carrying platform 9 is fixedly installed on the circumferential surface of the pull rod 8, the loading tray 10 is fixedly installed on the top of the carrying platform 9, and the welding piece 1 1 is arranged inside the loading tray 10, the welding piece 11 includes a ceramic base and an electrode, the ceramic base is arranged inside the loading tray 10, the electrode is fixedly mounted on the surface of the ceramic base, the sliding table 12 slides through the top of the loading table 9, the flexible block 13 is fixedly mounted on the inner wall of the sliding table 12, a hole groove is opened on the flexible block 13, the tungsten wire 14 is arranged inside the hole groove, the linkage plate 15 is fixedly mounted on the circumferential surface of the pull rod 8, the rubber plate 16 is rotatably mounted on the inner wall of the loading tray 10, the pushing plate 17 slides through the inner and outer walls of the sliding table 12, a No. 1 spring 18 is arranged between the pushing plate 17 and the sliding table 12, the limiting rod 19 is fixedly mounted on the bottom of the pushing plate 17, a circular hole is opened at the bottom of the loading tray 10, the electrode at the bottom of the welding piece 11 contacts the inner wall of the circular hole, a card slot is opened on the circumferential surface of the flexible block 13, and the tungsten wire 14 is directly moved into the flexible block 13 for fixing, which effectively saves installation time and facilitates the operator to adjust the position and angle of the tungsten wire 14.

[0021] A No. 1 spiral spring is arranged between the rubber plate 16 and the loading plate 10. The side of the rubber plate 16 close to the welding part 11 contacts the circumferential surface of the ceramic base. By rotating the rubber plate 16 and applying stable pressure on the welding part 11, the deflection of the welding part 11 during movement and welding can be effectively reduced.

[0022] A limit groove is provided on the top of the mounting platform 9, and the limit rod 19 contacts the inner wall of the limit groove. A slope 1 is provided on one side of the linkage plate 15 close to the rectangular plate 7. Through standardized operation, the welding part 11 and the tungsten wire 14 are fitted together, and the operator is convenient to adjust the fitting angle in a safe area, which helps to improve the quality of spot welding.

[0023] When the present embodiment is working, the welding piece 11 is moved to the top of the loading disk 10, and the electrode is aligned with the circular hole and then placed inside the loading disk 10. The circumferential surface of the electrode passes through the circular hole during the movement. At the same time, the ceramic base of the welding piece 11 contacts the side of the rubber plate 16 away from the loading disk 10 during the movement. The movement of the ceramic base applies a thrust to the rubber plate 16. The rubber plate 16 moves in the direction away from the welding piece 11 under the action of the thrust. The rubber plate 16 rotates to stretch the No. 1 volute spring. The No. 1 volute spring is stretched and deformed. The deformed No. 1 volute spring applies a reaction force to the rubber plate 16. The rubber plate 16 applies pressure to the welding piece 11 under the action of the reaction force. After the welding piece 11 is placed, the tungsten wire 14 is moved to the front of the card slot of the flexible block 13. The movable tungsten wire 14 moves toward the center direction of the flexible block 13, and the circumferential surface of the tungsten wire 14 contacts the inner wall of the slot during the movement. Since the radius of the tungsten wire 14 is larger than the size of the slot, the tungsten wire 14 moves to squeeze the flexible block 13, and the flexible block 13 is squeezed and deformed. The tungsten wire 14 continues to move and contacts the inner wall of the hole slot, so that the tungsten wire 14 is limited by the flexible block 13. By rotating the rubber plate 16 and applying a stable pressure on the welding part 11, the deflection of the welding part 11 during the movement and welding process can be effectively reduced. After the tungsten wire 14 is fixed, the push plate 17 is pulled to move upward, and the push plate 17 moves to squeeze the No. 1 spring 18. The No. 1 spring 18 is squeezed and deformed, and at the same time, the push plate 17 moves to drive the limit rod 19 to move upward , the limit rod 19 moves and separates from the limit groove, so that the limit imposed by the mounting platform 9 on the sliding platform 12 is released, and the push plate 17 is pulled to move toward the loading disk 10. The movement of the push plate 17 drives the limit rod 19 to move toward the loading disk 10. At the same time, the push plate 17 moves to drive the sliding platform 12 to move toward the loading disk 10. The movement of the sliding platform 12 drives the flexible block 13 to move toward the loading disk 10. The movement of the flexible block 13 drives the tungsten wire 14 to move toward the loading disk 10. The tungsten wire 14 moves to the predetermined position and then stops moving. At the same time, the tungsten wire 14 contacts the circumferential surface of the electrode, and the push plate 17 is released. The deformed No. 1 spring 18 recovers and drives the push plate 17 to move downward. The movement of the push plate 17 drives the limit rod 19 to move downward. The limit rod 19 moves and the inner part of the limit groove The contact with the wall makes the movement of the sliding table 12 limited by the carrying table 9. After the tungsten wire 14 is in stable contact with the welding piece 11, the operator steadily pushes the pull rod 8 to move toward the spot welding machine body 4. The movement of the pull rod 8 drives the linkage plate 15 to move toward the spot welding machine body 4. At the same time, the movement of the pull rod 8 drives the carrying table 9 to move toward the spot welding machine body 4. After the carrying table 9 moves to the predetermined position, the linear drive mechanism 3 is started. The output end of the linear drive mechanism 3 moves and drives the spot welding machine body 4 to move to a suitable position, and the spot welding machine body 4 is started, so that the spot welding machine body 4 performs spot welding on the welding piece 11 and the tungsten wire 14. Through standardized operation to fit the welding piece 11 and the tungsten wire 14, and convenient for the operator to adjust the fitting angle in a safe area, it is helpful to improve the quality of spot welding.

[0024] See also Figure 1-Figure 8 On the basis of the above embodiment, 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 No. 1 spring piece 203, a blocking block 204, a No. 2 spring piece 205, a round rod 206, a pressing plate 207, a C-shaped plate 208 and a No. 3 spring piece 209, the hollow plate 201 is fixedly penetrated through the side of the rectangular plate 7 away from the linear drive mechanism 3, a sliding groove is provided on the side of the hollow plate 201 away from the loading platform 9, the lifting plate 202 slides through the inner and outer walls of the hollow plate 201, the inner wall of the lifting plate 202 is provided with an arc surface 1, the No. 1 spring piece 203 is arranged between the lifting plate 202 and the hollow plate 201, the blocking block 204 slides through the lifting plate 202 and the inner wall of the lifting plate 202, and the locking device 203 is provided between the lifting plate 202 and the hollow plate 201. The inner and outer walls of the plate 202, the No. 2 spring piece 205 is fixedly installed on the outer side wall of the lifting plate 202 away from the arc surface 1, 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 close to the slide groove, the C-shaped plate 208 slides through the inner and outer walls of the pressing plate 207, the No. 3 spring piece 209 is arranged between the C-shaped plate 208 and the pressing plate 207, and the blocking block 204 is provided with an arc surface 2 on the side away from the No. 2 spring piece 205. 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, which reduces the operating burden and avoids the pull rod 8 from being accidentally touched and moved during spot welding.

[0025] The blocking block 204 has a third arc surface on one side close to the second spring piece 205, and the third arc surface contacts the second spring piece 205. By providing the third arc surface, the second spring piece 205 can be smoothly stretched when the blocking block 204 moves, which helps to ensure smooth operation.

[0026] A docking groove is provided on the inner wall of the hollow plate 201 close to the C-shaped plate 208, and one side of the C-shaped plate 208 close to the hollow plate 201 contacts the inner wall of the docking groove. The limit imposed by the blocking block 204 can be quickly released after multiple standardized operations, effectively improving the standardization of the operation process.

[0027] The protective device includes a carrying 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 carrying frame 211 is fixedly mounted on the top of the inner wall of the hollow plate 201, the contact plate 212 slides through the inner wall of the carrying frame 211, the second spring 213 is arranged between the contact plate 212 and the carrying frame 211, the connecting frame 214 is fixedly mounted on a side of the contact plate 212 close to the first spring sheet 203, and the elastic sheet 215 is fixedly mounted on the first spring sheet 203. The connecting frame 214 is rotatably mounted on the inner wall of the connecting frame 214, the L-shaped plate 216 is fixedly mounted on the side of the connecting frame 214 away from the contact plate 212, the comb plate 217 is fixedly mounted on the inner wall of the mounting frame 211, a groove is provided on the top of the contact plate 212, and a second spiral spring is provided between the elastic sheet 215 and the connecting frame 214. Vibration is generated by intermittent collision between the elastic sheet 215 and the comb plate 217, and then the vibration is transmitted to the lifting plate 202, which helps to improve the smoothness of the movement of the lifting plate 202.

[0028] The side of the L-shaped plate 216 away from the contact plate 212 contacts the top of the elastic sheet 215, and the side of the comb plate 217 close to the elastic sheet 215 is provided with an arc surface four. The elastic sheet 215 rotates when the top contacts the arc surface four to avoid deformation, ensuring that the lifting plate 202 will not be affected by additional resistance when it is reset upward.

[0029] When the embodiment is working, the inclined surface 1 of the linkage plate 15 contacts the arc surface 2 of the blocking block 204 during the movement, and the inclined surface 1 moves to apply pressure to the arc surface 2. The blocking block 204 is affected by the pressure and moves in the direction of the second spring piece 205. The arc surface 3 of the blocking block 204 moves and stretches the second spring piece 205. The second spring piece 205 is squeezed and deformed. During the movement, the surface of the linkage plate 15 in contact with the blocking block 204 is separated, so that the linkage plate 15 continues to move and contact the arc surface 1. At the same time, the deformed second spring piece 205 recovers and drives the blocking block 204 to move towards each other. The blocking block 204 contacts the side of the linkage plate 15 away from the arc surface 1 during the resetting process, so that the blocking block 204 imposes a limit on 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, which reduces the operating burden and avoids the situation where the pull rod 8 is accidentally touched and moves during the spot welding process. After the spot welding is completed, The C-shaped plate 208 is manually pressed to move in the direction of the pressing plate 207, and the C-shaped plate 208 moves to squeeze the third spring piece 209. The third spring piece 209 is squeezed and deformed. At the same time, the C-shaped plate 208 is separated from the surface in contact with the docking groove during the movement, so that the limit imposed by the hollow plate 201 on the lifting plate 202 is released, and the C-shaped plate 208 is pushed to move downward. The movement of the C-shaped plate 208 drives the pressing plate 207 to move downward. The movement of the pressing plate 207 drives the lifting plate 202 to move downward. The lifting plate 202 squeezes the first spring piece 203. The first spring piece 203 is squeezed and deformed. At the same time, the movement of the lifting plate 202 drives the round rod 206 and the blocking block 204 to move downward. The blocking block 204 is separated from the surface in contact with the linkage plate 15 during the movement, so that the limit imposed by the blocking block 204 on the linkage plate 15 is released. The limit imposed by the blocking block 204 is quickly released through multiple standardized operations, which effectively improves the standardization of the operation process. 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. The contact plate 212 moves to squeeze the No. 2 spring 213. The No. 2 spring 213 is squeezed and deformed. 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 sheet 215 to move downward. During the movement, the elastic sheet 215 contacts the arc surface 4 of the comb plate 217. Since the elastic sheet 215 rotates upward and is affected by the L-shaped plate 21 6, the arc surface 4 blocks the moving elastic sheet 215, causing the elastic sheet 215 to continue to move and deform. When the elastic sheet 215 and the arc surface 4 separate, the deformed elastic sheet 215 recovers under the action of elasticity. When recovering, the elastic sheet 215 collides with the second arc surface 4, causing the arc surface 4 of the comb plate 217 to intermittently collide with the elastic sheet 215 to generate continuous vibration. The comb plate 217 transmits the vibration to the round rod 206 under the action of resonance, causing the lifting plate 202 to be affected by the vibration when moving downward. 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. When the round rod 206 is reset upward, the pressure applied is gradually reduced, so that the deformed No. 2 spring 213 is restored to drive the contact plate 212 to move upward, and 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 sheet 215 to move upward. The top of the elastic sheet 215 contacts the arc surface 4 during the movement, and the arc surface 4 contacts the moving elastic sheet 215. 5 resistance is applied, and the elastic sheet 215 rotates downward under the influence of the resistance. The elastic sheet 215 rotates to stretch the No. 2 scroll spring, and the No. 2 scroll spring is deformed due to the stretching. At the same time, the contact surface of the elastic sheet 215 and the L-shaped plate 216 are separated. The elastic sheet 215 continues to move and separates from the contact surface of the fourth arc surface. The deformed No. 2 scroll spring recovers and drives the elastic sheet 215 to rotate to the initial position. The top of the elastic sheet 215 rotates when it contacts the fourth arc surface to avoid deformation, ensuring that the lifting plate 202 will not be affected by additional resistance when it is reset upward.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DSP high-frequency inverter desktop micro spot welding machine, comprising a machine tool (1), characterized in that: A welding main machine (2) is fixedly installed inside the machine tool (1), a linear drive mechanism (3) is fixedly installed at the bottom of the inner wall of the machine tool (1), a spot welding machine body (4) is fixedly installed at the output end of the linear drive mechanism (3), a heat dissipation device (5) is fixedly installed on the outer wall of the machine tool (1), a three-color lamp (6) is fixedly installed on the top of the machine tool (1), a rectangular plate (7) is fixedly installed at the bottom of the inner wall of the machine tool (1), a rectangular groove is provided on a side of the rectangular plate (7) close to the spot welding machine body (4), and the machine tool (1) further comprises a fixing device, a locking device and a protective device; The fixing device comprises a pull rod (8), a carrying platform (9), a loading disk (10), a welding part (11), a sliding platform (12), a flexible block (13), a tungsten wire (14), a linkage plate (15), a rubber plate (16), a push plate (17), a spring No. 1 (18) and a limit rod (19); the pull rod (8) slides through a side of the rectangular plate (7) away from the linear drive mechanism (3); the carrying platform (9) is fixedly mounted on the circumferential surface of the pull rod (8); the loading disk (10) is fixedly mounted on the top of the carrying platform (9); the welding part (11) is arranged inside the loading disk (10); the welding part (11) comprises a ceramic base and an electrode; the ceramic base is arranged inside the loading disk (10); the electrode is fixedly mounted on the surface of the ceramic base; the sliding platform (12) slides through the top of the mounting platform (9), the flexible block (13) is fixedly mounted on the inner wall of the sliding platform (12), a hole groove is opened on the flexible block (13), the tungsten wire (14) is arranged inside the hole groove, the linkage plate (15) is fixedly mounted on the circumferential surface of the pull rod (8), the rubber plate (16) is rotatably mounted on the inner wall of the loading plate (10), the push plate (17) slides through the inner and outer walls of the sliding platform (12), the No. 1 spring (18) is arranged between the push plate (17) and the sliding platform (12), the limit rod (19) is fixedly mounted on the bottom of the push plate (17), the bottom of the loading plate (10) is opened with a circular hole, the electrode at the bottom of the welding part (11) contacts the inner wall of the circular hole, and the circumferential surface of the flexible block (13) is opened with a card slot.

2. A DSP high frequency inverter desktop micro spot welding machine according to claim 1, characterized in that: A first spiral spring is arranged between the rubber plate (16) and the loading plate (10), and a surface of the rubber plate (16) close to the welding piece (11) is in contact with the circumferential surface of the ceramic base.

3. A DSP high frequency inverter desktop micro spot welding machine according to claim 2, characterized in that: A limiting groove is provided on the top of the carrying platform (9), the limiting rod (19) contacts the inner wall of the limiting groove, and a sloped surface is provided on one side of the linkage plate (15) close to the rectangular plate (7).

4. The DSP high frequency inverter desktop micro spot welding machine according to claim 3, characterized in that: The locking device comprises a hollow plate (201), a lifting plate (202), a first spring piece (203), a blocking block (204), a second spring piece (205), a round rod (206), a pressing plate (207), a C-shaped plate (208) and a third spring piece (209); the hollow plate (201) is fixedly passed through a side of the rectangular plate (7) away from the linear drive mechanism (3); a sliding groove is provided on a side of the hollow plate (201) away from the mounting platform (9); the lifting plate (202) is slidably passed through the inner and outer walls of the hollow plate (201); an arc surface 1 is provided on the inner wall of the lifting plate (202); the first spring piece (203) is arranged between the lifting plate (202) and the hollow plate (201). The blocking block (204) slides through the inner and outer walls of the lifting plate (202), the second spring piece (205) is fixedly mounted on the outer wall of the lifting plate (202) away from the first arc surface, the round rod (206) is fixedly mounted on the inner wall of the lifting plate (202), the pressing plate (207) is fixedly mounted on a side of the lifting plate (202) close to 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 arranged between the C-shaped plate (208) and the pressing plate (207), the blocking block (204) is provided with a second arc surface on a side away from the second spring piece (205), and the pressing plate (207) contacts the inner wall of the slide groove.

5. A DSP high frequency inverter desktop micro spot welding machine according to claim 4, characterized in that: A third arc surface is formed on a surface of the blocking block (204) close to the second spring piece (205), and the third arc surface is in contact with the second spring piece (205).

6. The DSP high frequency inverter desktop micro spot welding machine according to claim 5, characterized in that: A butt joint groove is provided on the inner wall of the hollow plate (201) close to the C-shaped plate (208), and a surface of the C-shaped plate (208) close to the hollow plate (201) contacts the inner wall of the butt joint groove.

7. A DSP high frequency inverter desktop micro spot welding machine according to claim 6, characterized in that: The protective device comprises a carrying 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 carrying frame (211) is fixedly mounted on the top of the inner wall of the hollow plate (201); the contact plate (212) slides through the inner wall of the carrying frame (211); the second spring (213) is arranged between the contact plate (212) and the carrying frame (211); the connecting frame (214) is provided with a plurality of springs (213) and a plurality of springs (214) disposed between the contact plate (212) and the carrying frame (211); and the connecting frame (214) is provided with a plurality of springs (213) and a plurality of springs (214) disposed between the contact plate (212) and the carrying frame (211). 4) is fixedly mounted on a side of the contact plate (212) close to the first spring sheet (203), the elastic sheet (215) is rotatably mounted on the inner wall of the connecting frame (214), the L-shaped plate (216) is fixedly mounted on a side of the connecting frame (214) away from the contact plate (212), the comb plate (217) is fixedly mounted on the inner wall of the mounting frame (211), a groove is provided on the top of the contact plate (212), and a second volute spring is provided between the elastic sheet (215) and the connecting frame (214).

8. The DSP high frequency inverter desktop micro spot welding machine according to claim 7, characterized in that: A side of the L-shaped plate (216) away from the contact plate (212) contacts the top of the elastic sheet (215), and a side of the comb plate (217) close to the elastic sheet (215) is provided with an arc surface 4.

Images