Quick-change mold module and welding assembly jig

Abstract

The application belongs to the technical field of welding devices, and proposes a quick-change module and a welding assembly jig. The quick-change module is used for replacing different welding pieces and can position the welding piece to be welded to a preset welding position on the plate. The quick-change module comprises a moving part, a plurality of quick-change assemblies, a first driving piece and a first reset piece. The moving part is arranged above the plate. The quick-change assemblies are arranged on the moving part and are arranged opposite the welding position. The quick-change assemblies are configured to clamp the welding piece. The first driving piece is configured to push the moving part to move in a direction away from the welding position. The first reset piece can stop the moving part to move in a direction away from the welding position. The first driving piece drives the quick-change assembly away from the welding position, and then clamps the welding piece in the quick-change assembly. Under the action of the first reset piece, the welding piece can be moved to the welding position, thereby improving the replacement efficiency of the welding piece.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a quick-change module and welding assembly fixture. Background Technology

[0002] With the continuous development of welding automation technology, automated welding robots are increasingly being used in existing welding processes to weld workpieces. Specifically, the product is first fixed, then the automated welding robot is tested and adjusted, and finally, the automated welding robot welds the product and the workpiece together. Figure 1 As shown, common products are mostly sheet metal 100, on which several welding grooves 110 are provided. Two first extension plates 120 are provided at intervals on one inner sidewall of any welding groove 110. It is often necessary to weld the welded parts at the welding position between the two first extension plates 120, and the welded parts are connected to the bottom of the two first extension plates 120.

[0003] In actual production or application, due to the small size of the welded parts, it is not convenient to position the welded parts and the welding position before welding. Manual positioning is often used. However, when positioning manually, the loading time increases, the workload of workers increases, and the position between the welding position and the welded parts is prone to deviation when positioning manually, resulting in poor welding quality and thus affecting product quality.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a quick-change module and a welding assembly fixture to improve the replacement efficiency of welded parts.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A quick-change module is used to replace different welding parts and can position the welding part to be welded to a preset welding position on a plate. The plate is provided with a plurality of welding grooves, and two first extension plates are provided at intervals on one inner sidewall of any welding groove. The welding position is located between the two first extension plates and is partially connected to the bottom of the two first extension plates. The quick-change module is characterized in that it includes:

[0008] A movable part, wherein the movable part is disposed above the plate;

[0009] A plurality of quick-change components are disposed on the movable part and opposite to the welding position, and the quick-change components are configured to clamp the welded part;

[0010] A first driving member, configured to push against the moving part, causing the moving part to move in a direction away from the welding position; and

[0011] A first reset member is capable of abutting the moving part to restrict the moving part from moving in a direction away from the welding position.

[0012] Preferably, the quick-change component includes:

[0013] A quick-change body is disposed on the moving part. A sliding groove is provided at the bottom of the quick-change body. An extension plate is provided at the bottom of the opening of the sliding groove. A baffle is provided at the end of the extension plate away from the opening.

[0014] A limiting rod is slidably disposed inside the slide groove, and a portion of the limiting rod extends out of the slide groove;

[0015] A first compression spring, with its two ends connected to the limiting rod and the inner wall of the slide groove respectively, pushes against the limiting rod, thereby forming the installation position of the welded part between the limiting rod and the baffle.

[0016] Preferably, the quick-change body has a drive groove that communicates with the slide groove, and the limiting rod has a guide groove whose width is greater than the width of the drive groove.

[0017] The quick-change assembly also includes a push switch, which includes a pressing part and a guide part. The cross-sectional area of ​​the pressing part is larger than that of the guide part. A portion of the guide part is slidably connected to the drive groove. One end of the guide part is connected to the bottom of the pressing part, and the other end of the guide part is a wedge-shaped end with the end face of the wedge-shaped end facing the first compression spring.

[0018] A second compression spring is sleeved on the guide portion, and its two ends are respectively connected to the pressing portion and the quick-change body; and

[0019] A locking element configured to prevent the wedge end from disengaging from the guide groove.

[0020] A welding assembly fixture for positioning sheet metal, the welding assembly fixture comprising:

[0021] A platform for supporting the plate material;

[0022] A first limiting module is configured to restrict the movement of the plate material along a preset first direction;

[0023] A second limiting module is configured to restrict the movement of the plate material along a preset second direction;

[0024] A third limiting module, wherein the second limiting module is configured to restrict the movement of the plate material along a preset third direction; and

[0025] As described above, in the quick-change module, the moving part includes a crossbar and a slider. The slider is slidably disposed on the top of the platform. The first driving member and the first resetting member are respectively disposed at both ends of the slider. The top of the slider is provided with a positioning hole, and the bottom of the crossbar is provided with a positioning pin. The positioning pin is adapted to the positioning hole.

[0026] The first direction, the second direction, and the third direction are perpendicular to each other.

[0027] Preferably, the first limiting module includes:

[0028] Two limiting plates are spaced apart, and both limiting plates are slidably disposed on the top of the platform. Each of the two limiting plates has a plurality of first limiting parts on its top, and the first limiting parts abut against the side wall of the plate.

[0029] A second driving member, configured to push against the two limiting plates while simultaneously moving them away from each other along the first direction; and

[0030] The second reset member is capable of preventing the two limiting plates from moving away from each other simultaneously along the first direction.

[0031] Preferably, the second driving member includes a driving plate, and a second extension plate is provided at both ends of the driving plate. The second extension plate includes a first sidewall and a second sidewall. The extension direction of the first sidewall is consistent with the second direction, and the extension direction of the second sidewall is intersected with the second direction. The two second sidewalls are arranged opposite to each other.

[0032] The limiting plate has a limiting groove, which is adapted to the second extension plate.

[0033] Preferably, the drive board has a first positioning groove, the length direction of the first positioning groove being consistent with the second direction;

[0034] The limiting plate is provided with a second positioning groove, and the length direction of the second positioning groove is consistent with the first direction.

[0035] The first and second positioning slots are each provided with a plurality of positioning shafts, and the length direction of the positioning shafts is consistent with the third direction.

[0036] Preferably, the second limiting module includes a plurality of second limiting parts and a plurality of third driving members. The second limiting parts and the third driving members are respectively disposed on both sides of the plate along the second direction. The third driving members can push the plate to move along the second direction so that the plate abuts against the second limiting parts.

[0037] Preferably, the third limiting module includes two support blocks spaced apart on the platform and several rotary pressing cylinders disposed on the platform. The plate is disposed on the support blocks, and the output end of the rotary pressing cylinder abuts against the top of the plate.

[0038] Preferably, the platform is provided with an opening;

[0039] The moving part further includes a lifting cylinder and a slide rail. The slide rail is slidably disposed inside the opening along the third direction, and the piston rod of the lifting cylinder is connected to the bottom of the slide rail.

[0040] The beneficial effects of this invention are:

[0041] This invention proposes a quick-change module and welding assembly fixture. A first driving component moves the moving part, thereby moving the quick-change assembly away from the welding position. The weldment is then clamped in the quick-change assembly, and under the action of a first resetting component, the weldment is moved to the welding position, thus improving the replacement efficiency of the weldment. Furthermore, by using a first limiting module, a second limiting module, and a third limiting module to position the plate material at a preset location, the alignment between the welding position and the weldment is improved, further enhancing the replacement efficiency of the weldment. Attached Figure Description

[0042] Figure 1 This is a structural diagram of an existing product;

[0043] Figure 2 This is a schematic diagram of the structure of the welding assembly fixture (with plate installed) provided in the embodiment of the present invention;

[0044] Figure 3 yes Figure 1 Top view;

[0045] Figure 4 This is a schematic diagram of the welding assembly fixture (without plate installed) provided in the embodiment of the present invention;

[0046] Figure 5 This is one of the structural schematic diagrams of the welding assembly fixture for removing the quick-change module provided in the embodiments of the present invention;

[0047] Figure 6This is the second schematic diagram of the structure of the welding assembly fixture for removing the quick-change module provided in the embodiments of the present invention;

[0048] Figure 7 A schematic diagram of the quick-change module provided in this embodiment of the invention;

[0049] Figure 8 yes Figure 7 Sectional view at point AA;

[0050] Figure 9 This is a schematic diagram of the limiting rod and push switch provided in the embodiment of the present invention.

[0051] In the picture:

[0052] 100. Plate; 110. Welding groove; 120. First extension plate; 200. Welded component;

[0053] 1. Quick-change module; 11. Moving part; 111. Crossbar; 1111. Positioning pin; 112. Slider; 113. Lifting cylinder; 114. Slide rail; 12. Quick-change assembly; 121. Quick-change body; 1211. Slide groove; 1212. Extending plate; 1213. Baffle; 1214. Drive groove; 122. Limiting rod; 1221. Guide groove; 123. First compression spring; 13. First driving component; 14. First reset component; 15. Press switch; 151. Pressing part; 152. Guide part; 1521. Wedge end; 16. Second compression spring; 17. Locking component; 18. Limiting assembly;

[0054] 2. Platform; 21. Opening;

[0055] 3. First limiting module; 31. Limiting plate; 311. First limiting part; 312. Limiting groove; 313. Second positioning groove; 32. Second driving component; 321. Driving plate; 3211. First positioning groove; 322. Second extension plate; 3221. First side wall; 3222. Second side wall; 323. Driving cylinder; 33. Second reset component; 34. Positioning shaft;

[0056] 4. Second limiting module; 41. Second limiting part; 42. Third driving component;

[0057] 5. Third limit module; 51. Support block; 52. Rotary pressing cylinder. Detailed Implementation

[0058] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0059] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0062] Please see Figures 1 to 9 This embodiment proposes a welding assembly fixture for positioning the sheet metal 100. The welding assembly fixture includes a platform 2, a first limiting module 3, a second limiting module 4, a third limiting module 5, and a quick-change module 1. The platform 2 supports the sheet metal 100. The first limiting module 3 is configured to restrict the sheet metal 100 from moving along a preset first direction. The second limiting module 4 is configured to restrict the sheet metal 100 from moving along a preset second direction. The third limiting module 5 is configured to restrict the sheet metal 100 from moving along a preset third direction. The first, second, and third directions are perpendicular to each other. In this embodiment, the preset first direction is the width direction of the sheet metal 100, the preset second direction is the length direction of the sheet metal 100, and the preset third direction is a direction perpendicular to the surface of the sheet metal 100. The first limiting module 3, the second limiting module 4, and the third limiting module 5 can fix the sheet metal 100 at a designated position on the platform 2, facilitating the alignment of the weldment 200 with a preset welding position on the sheet metal 100.

[0063] Please combine Figure 4 , Figure 5 and Figure 6 Referring to the reference, the first limiting module 3 includes two limiting plates 31 spaced apart, a second driving member 32, and a second resetting member 33. Both limiting plates 31 are slidably disposed on the top of the platform 2, and each limiting plate 31 has several first limiting portions 311 on its top, which abut against the sidewall of the plate 100. The second driving member 32 is configured to push the two limiting plates 31 away from each other simultaneously in a first direction. The second resetting member 33 can prevent the two limiting plates 31 from moving away from each other simultaneously in the first direction. It is understood that the direction of the force exerted by the second driving member 32 on the two limiting plates 31 is opposite to the direction of the force exerted by the second resetting member 33 on the two limiting plates 31, facilitating the clamping of the plate 100 between the two first limiting portions 311. The first limiting portions can be made of existing rubber components to prevent damage to the plate 100. The second driving member 32 can be made of existing linear drive components such as cylinders; no specific restrictions are imposed here.

[0064] In this embodiment, two limiting plates 31 are respectively mounted on the platform 2 via precision guide rails. The length direction of the precision guide rails is consistent with the first direction. Four second reset members 33 are provided, and the four second reset members 33 are respectively disposed at both ends of the two limiting plates 31. The second reset members 33 can be selected as second reset springs or some other elastic elements with reset performance. It should be noted that it is necessary to ensure that the direction of the force exerted by the two second reset members 33 on the plate 100 is in the same straight line, so as to avoid deviation of the force exerted by the second elastic element on the plate 100, which would affect the limiting effect of the first limiting module 3 on the plate 100.

[0065] Please combine Figure 5 and Figure 6Referring to the reference, the second driving component 32 includes a driving plate 321, with second extension plates 322 at both ends of the driving plate 321. Each second extension plate 322 includes a first sidewall 3221 and a second sidewall 3222. The extension direction of the first sidewall 3221 is consistent with the second direction, while the extension direction of the second sidewall 3222 intersects with the second direction, and the two second sidewalls 3222 are positioned opposite each other. A limiting plate 31 has a limiting groove 312, which is adapted to the second extension plate 322. It can be understood that the second extension plate 322 is a right-angled trapezoid, with the first sidewall 3221 being the right-angled leg of the trapezoid and the second sidewall 3222 being the inclined leg. During movement, the drive plate 321 slides against the two inner walls of the limiting groove 312 via the inclined waist and right-angle waist of the second extension plate 322. Under the action of the inclined waist, it can push the two limiting plates 31 away from each other. Furthermore, under the rebound force of the second reset member 33, it can keep the first side wall 3221 and the second side wall 3222 against the two side walls of the limiting groove 312. Specifically, by moving the drive plate 321, the distance between the two limiting plates 31 is increased, the second reset member 33 is compressed, the plate 100 is placed between the two limiting plates 31, and the drive plate 321 is released. Under the rebound force of the second reset member 33, the plate 100 is fixed between the two limiting plates 31.

[0066] In this embodiment, the drive plate 321 is moved by a drive cylinder 323. Specifically, a strip-shaped hole is provided on the stage 2, and a guide plate is fixed on the drive plate 321. The guide plate is slidably disposed in the strip-shaped hole and extends below the stage 2. The piston rod of the drive cylinder 323 can push the guide plate to slide inside the strip-shaped hole. Compared with fixing the guide plate to the end of the piston rod, the movement of the guide plate by the piston rod can avoid the gap between the first limiting part 311 and the plate 100 when the two limiting plates 31 clamp the plate 100 because the thrust of the drive cylinder 323 is greater than the elastic force of the second reset member 33. This allows the first limiting part 311 to fit more tightly with the plate 100, thereby improving the positioning effect of the plate 100.

[0067] It should be noted that the two limiting plates 31 are symmetrical about the center line of the strip hole to avoid deviation in the movement of the two limiting plates 31 during the movement of the drive plate 321.

[0068] To prevent the drive plate 321 and the two limiting plates 31 from shifting during movement, the drive plate 321 has a first positioning groove 3211, the length direction of which is consistent with the second direction; the limiting plates 31 have second positioning grooves 313, the length direction of which is consistent with the first direction; both the first positioning groove 3211 and the second positioning groove 313 are provided with a plurality of positioning shafts 34, the length direction of which is consistent with the third direction. In this embodiment, the first positioning groove 3211 is provided with one positioning shaft 34, and the two second positioning grooves 313 are each provided with two positioning shafts 34. The positioning shafts 34 can prevent the drive plate 321 and the two limiting plates 31 from shifting during movement, thereby improving the positioning accuracy of the two limiting plates 31, and thus improving the positioning accuracy of the plate 100.

[0069] Please combine Figures 2 to 5 For reference, the second limiting module 4 includes several second limiting parts 41 and several third driving members 42. The second limiting parts 41 and the third driving members 42 are respectively disposed on both sides of the plate 100 along the second direction. The third driving members 42 can push the plate 100 to move along the second direction so that the plate 100 abuts against the second limiting parts 41.

[0070] In this embodiment, two second limiting parts 41 and two corresponding third driving members 42 are provided. Under the action of the third driving members 42, the plate 100 can be pushed to move towards the second limiting parts 41. Under the action of the second limiting parts 41 and the third driving members 42, the plate 100 can be positioned in the second direction. The third limiting module 5 includes two support blocks 51 spaced apart on the platform 2 and several rotary pressing cylinders 52 disposed on the platform 2. The plate 100 is disposed on the support blocks 51, and the output end of the rotary pressing cylinder 52 abuts against the top of the plate 100. After the plate 100 is limited in the first and second directions, the output end of the rotary pressing cylinder 52 is fixed to the top of the plate 100 by rotating the pressing cylinder 52 to prevent the plate 100 from shaking in the third direction during the welding process, which would affect the welding quality.

[0071] This embodiment also proposes a quick-change module 1 for replacing different welding parts 200, and can position the welding part 200 to be welded to a preset welding position on the plate 100. The plate 100 is provided with a plurality of welding grooves 110, and two first extension plates 120 are provided at intervals on one inner sidewall of any welding groove 110. The welding position is located between the two first extension plates 120 and is partially connected to the bottom of the two first extension plates 120. Group 1 includes a moving part 11, a plurality of quick-change components 12, a first drive member 13, and a first reset member 14. The moving part 11 is disposed on the top of the platform 2. The quick-change components 12 are disposed on the moving part 11 and are disposed opposite to the welding position. The quick-change components 12 are configured to clamp the welding part 200. The first drive member 13 is configured to push against the moving part 11, causing the moving part 11 to move in a direction away from the welding position. The first reset member 14 can stop the moving part 11, causing the moving part 11 to move in a direction away from the welding position.

[0072] Understandably, by moving the moving part 11 through the first driving member 13, the quick-change assembly 12 can be moved away from the welding position. Subsequently, the weldment 200 is clamped in the quick-change assembly 12. Under the action of the first reset member 14, the weldment 200 can be moved to the welding position, thereby improving the replacement efficiency of the weldment 200. In addition, by positioning the plate 100 to a preset position through the first limiting module 3, the second limiting module 4, and the third limiting module 5, the alignment between the welding position and the weldment 200 can be improved, further enhancing the replacement efficiency of the weldment 200.

[0073] In this embodiment, please refer to Figures 1 to 3 Referring to the above, the plate 100 has four welding grooves 110, which are respectively located at the four corners of the plate 100. Correspondingly, there are four sets of quick-change components 12. To improve the replacement efficiency of the welded parts 200, two quick-change components 12 are set on the same moving part 11. To ensure that the two quick-change components 12 do not shift during the movement of the moving part 11, the first driving member 13 acts on the middle position of the moving part 11. Two first reset members 14 are respectively provided at both ends of each moving part 11 to ensure that the quick-change components 12 at both ends of the moving part 11 do not shift during the movement of the moving part 11. The first driving member 13 can be a cylinder, and the first reset member 14 can be a reset spring. Cylinders and reset springs are existing technologies and will not be described in detail here.

[0074] Furthermore, the moving part 11 includes a crossbar 111 and a slider 112. The slider 112 is slidably disposed on the top of the platform 2. The first driving member 13 and the first resetting member 14 are respectively disposed at both ends of the slider 112. A positioning hole is provided at the top of the slider 112, and a positioning pin 1111 is provided at the bottom of the crossbar 111. The positioning pin 1111 is adapted to the positioning hole. Through the cooperation of the positioning pin 1111 and the positioning hole, the docking efficiency of the quick-change assembly 12 and the welding position on the plate 100 can be improved. In addition, in order to prevent the positioning pin 1111 from falling out of the positioning hole after it is engaged with the positioning hole, the quick-change module 1 is also provided with a limiting assembly 18. The limiting assembly 18 includes a rotary cylinder and a pressing member. The rotating end of the rotary cylinder is connected to the pressing member. The pressing member can move with the rotary cylinder to the top of the crossbar 111 and limit the crossbar 111.

[0075] Please see Figures 7 to 9 The quick-change assembly 12 includes a quick-change body 121, a limiting rod 122, and a first compression spring 123. The quick-change body 121 is disposed on the moving part 11. A groove 1211 is provided at the bottom of the quick-change body 121. An extension plate 1212 is provided at the bottom of the opening 21 of the groove 1211. A baffle 1213 is provided at the end of the extension plate 1212 away from the opening 21. The limiting rod 122 is slidably disposed inside the groove 1211, and a portion of the limiting rod 122 extends out of the groove 1211. The two ends of the first compression spring 123 are respectively connected to the limiting rod 122 and the inner wall of the groove 1211 to push against the limiting rod 122, thereby forming an installation position for the welded part 200 between the limiting rod 122 and the baffle 1213. Understandably, before replacing the welding component 200, the limiting rod 122 is moved to compress the first compression spring 123, thereby increasing the area of ​​the installation position between the limiting rod 122 and the baffle 1213. After the welding component 200 is placed in the installation position, under the action of the first compression spring 123, the welding component 200 can be clamped in the installation position between the limiting rod 122 and the baffle 1213. Subsequently, under the action of the first reset component 14, the quick-change assembly 12 is moved to the welding position.

[0076] For easier control of the extension and retraction of the limit rod 122, please refer to the following: Figure 8 and Figure 9The quick-change body 121 has a drive groove 1214, which communicates with the slide groove 1211. The limiting rod 122 has a guide groove 1221, the width of which is greater than the width of the drive groove 1214. The quick-change assembly 12 also includes a push switch 15 and a second pressure spring 16. The push switch 15 includes a pressing part 151, a guide part 152, and a locking member 17. The cross-sectional area of ​​the pressing part 151 is greater than that of the guide part 152. Part 2 is slidably connected to the drive groove 1214. One end of the guide part 152 is connected to the bottom of the pressing part 151, and the other end of the guide part 152 is a wedge-shaped end 1521. The end face of the wedge-shaped end 1521 faces the first compression spring 123. The second compression spring 16 is sleeved on the guide part 152, and the two ends of the second compression spring 16 are respectively connected to the pressing part 151 and the quick-change body 121. The locking member 17 is configured to restrict the wedge-shaped end 1521 from disengaging from the guide groove 1221. It can be understood that when it is necessary to open the installation position, the pressing switch 15 is pressed down, which compresses the second compression spring 16. The end face of the wedge-shaped end 1521 of the guide part 152 can move against one side wall of the guide groove 1221. As the cross-sectional area of ​​the guide part 152 gradually increases, the limiting rod 122 will move. During the movement, the first compression spring 123 is compressed, and finally the welded part 200 is placed in the installation position. After the welding part 200 is placed, release the press switch 15. The first spring 123 and the second spring 16 will return to their initial positions due to their own elasticity. At this time, the clamping of the welding part 200 is completed.

[0077] To adjust the height of the welded component 200 in the welding groove 110, thereby ensuring proper contact between the welded component 200 and the bottom of the first extension plate 120, the moving part 11 further includes a lifting cylinder 113 and a slide rail 114. The slide rail 114 is slidably disposed inside the opening 21 along a third direction. The piston rod of the lifting cylinder 113 is connected to the bottom of the slide rail 114. Correspondingly, the platform 2 is provided with the opening 21. It can be understood that the slide rail 114 is slidably disposed in the opening 21 via the lifting cylinder 113, and the height of the crossbar 111 is adjusted by raising and lowering the lifting cylinder 113.

[0078] In this embodiment, as Figure 5 As shown, two slide rails 114 on one side are connected by a connecting plate. The piston rod of the lifting cylinder 113 acts on the middle of the connecting plate so that the two slide rails 114 can be lifted and lowered simultaneously.

[0079] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A quick-change module for replacing different welding parts (200) and capable of positioning the welding part (200) to be welded to a preset welding position on a plate (100), wherein the plate (100) is provided with a plurality of welding grooves (110), and two first extension plates (120) are provided at intervals on one inner sidewall of any welding groove (110), the welding position is located between the two first extension plates (120) and is partially connected to the bottom of the two first extension plates (120), characterized in that, The quick-change module includes: A movable part (11) is disposed above the plate (100); A plurality of quick-change components (12) are disposed on the moving part (11) and opposite to the welding position, and the quick-change components (12) are configured to clamp the welded part (200); A first driving member (13) is configured to push against the moving part (11), causing the moving part (11) to move in a direction away from the welding position; and The first reset member (14) is capable of abutting the moving part (11) to restrict the moving part (11) from moving in a direction away from the welding position; The quick-change assembly (12) includes: A quick-change body (121) is disposed on the moving part (11). A groove (1211) is provided at the bottom of the quick-change body (121). An extension plate (1212) is provided at the bottom of the groove opening of the groove (1211). A baffle (1213) is provided at the end of the extension plate (1212) away from the groove opening. A limiting rod (122) is slidably disposed inside the slide groove (1211), and the limiting rod (122) extends out of the slide groove (1211); The first compression spring (123) has its two ends connected to the inner wall of the limiting rod (122) and the slide groove (1211) respectively, so as to push against the limiting rod (122) and thus form the installation position of the welded part (200) between the limiting rod (122) and the baffle (1213).

2. The quick-change module according to claim 1, characterized in that, The quick-change body (121) has a drive groove (1214) that communicates with the slide groove (1211), and the limiting rod (122) has a guide groove (1221) that is wider than the width of the drive groove (1214). The quick-change assembly (12) further includes a push switch (15), which includes a pressing part (151) and a guide part (152). The cross-sectional area of ​​the pressing part (151) is larger than that of the guide part (152). Part of the guide part (152) is slidably connected to the drive groove (1214). One end of the guide part (152) is connected to the bottom of the pressing part (151), and the other end of the guide part (152) is a wedge-shaped end (1521). The end face of the wedge-shaped end (1521) faces the first compression spring (123). A second compression spring (16) is sleeved on the guide portion (152), and both ends of the second compression spring (16) are respectively connected to the pressing portion (151) and the quick-change body (121); and A locking element (17) is configured to restrict the wedge end (1521) from disengaging from the guide groove (1221).

3. A welding assembly fixture for positioning sheet metal (100), characterized in that, The welding assembly fixture includes: A platform (2) is used to support the plate (100); The first limiting module (3) is configured to restrict the plate (100) from moving along a preset first direction; The second limiting module (4) is configured to restrict the plate (100) from moving along a preset second direction; A third limiting module (5) is configured to restrict the movement of the plate (100) along a preset third direction; and According to any one of claims 1-2, the moving part (11) includes a crossbar (111) and a slider (112), the first driving member (13) and the first resetting member (14) are respectively disposed at both ends of the slider (112), the top of the slider (112) is provided with a positioning hole, the bottom of the crossbar (111) is provided with a positioning pin (1111), and the positioning pin (1111) is adapted to the positioning hole; The first direction, the second direction, and the third direction are perpendicular to each other.

4. The welding assembly fixture according to claim 3, characterized in that, The first limiting module (3) includes: Two limiting plates (31) are spaced apart. Both limiting plates (31) are slidably disposed on the top of the platform (2). Each of the two limiting plates (31) has a plurality of first limiting parts (311) on its top. The first limiting parts (311) abut against the side wall of the plate (100). The second driving member (32) is configured to push against the two limiting plates (31) while moving them away from each other along the first direction; and The second reset member (33) is capable of preventing the two limiting plates (31) from moving away from each other simultaneously along the first direction.

5. The welding assembly fixture according to claim 4, characterized in that, The second driving member (32) includes a driving plate (321), and a second extension plate (322) is provided at both ends of the driving plate (321). The second extension plate (322) includes a first side wall (3221) and a second side wall (3222). The extension direction of the first side wall (3221) is consistent with the second direction, and the extension direction of the second side wall (3222) is intersected with the second direction. The two second side walls (3222) are arranged opposite to each other. The limiting plate (31) has a limiting groove (312) which is adapted to the second extension plate (322).

6. The welding assembly fixture according to claim 5, characterized in that, The drive plate (321) is provided with a first positioning groove (3211), and the length direction of the first positioning groove (3211) is consistent with the second direction; The limiting plate (31) is provided with a second positioning groove (313), and the length direction of the second positioning groove (313) is consistent with the first direction; The first positioning groove (3211) and the second positioning groove (313) are each provided with a plurality of positioning shafts (34), and the length direction of the positioning shafts (34) is consistent with the third direction.

7. The welding assembly fixture according to claim 3, characterized in that, The second limiting module (4) includes a plurality of second limiting parts (41) and a plurality of third driving members (42). The second limiting parts (41) and the third driving members (42) are respectively disposed on both sides of the plate (100) along the second direction. The third driving members (42) can push the plate (100) to move along the second direction so that the plate (100) abuts against the second limiting parts (41).

8. The welding assembly fixture according to claim 3, characterized in that, The third limiting module (5) includes two support blocks (51) spaced apart on the platform (2) and several rotary pressing cylinders (52) disposed on the platform (2). The plate (100) is disposed on the support blocks (51), and the piston rod of the rotary pressing cylinder (52) abuts against the top of the plate (100).

9. The welding assembly fixture according to claim 3, characterized in that, The platform (2) is provided with an opening (21); The moving part (11) further includes a lifting cylinder (113) and a slide rail (114). The slide rail (114) is slidably disposed inside the opening (21) along the third direction. The piston rod of the lifting cylinder (113) is connected to the bottom of the slide rail (114).

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