A flexible projection welding tool

Abstract

The utility model belongs to the field of projection welding technology, especially a kind of flexible projection welding tool, including bottom plate, first positioning support piece and second positioning support piece, first positioning support piece and second positioning support piece are all set on bottom plate, U type recess is equipped on bottom plate, second positioning support piece is set on the both sides of U type recess, first positioning support piece is set on the two corners of bottom plate front end, the both sides of U type recess opening are also equipped with third positioning support piece, third positioning support piece is located in the rear end of second positioning support piece, and the lower end of bottom plate is equipped with support assembly. The utility model is through being equipped with multiple positioning support pieces on bottom plate, and the projection welding tool is smoothly completed by the support limiting of different positioning support pieces to different models of workpiece, solves the problem that current single projection welding tool can only position one kind of part, and projection welding tool cannot be used for the machining of different models of parts, and projection welding tool is time-consuming and laborious to disassemble and assemble;The efficiency problem of changing type in multi-variety, small-batch production is solved.

Description

Technical Field

[0001] This utility model relates to the field of projection welding technology, and in particular to a flexible projection welding fixture. Background Technology

[0002] The projection welding fixture structure mainly consists of columns or irregular supports mounted on a base plate. Its core function is to precisely position the workpiece, cooperate with the projection welding machine, improve production efficiency, ensure product quality consistency, and reduce operational difficulty. Its principle is primarily based on positioning, restricting the workpiece's translational and rotational degrees of freedom in the X and Y directions, and providing auxiliary positioning in the Z direction, making it convenient for workers to handle. The fabrication of the projection welding fixture mainly includes design, manufacturing, and installation / adjustment. Design involves using the required welding parts as support targets, selecting materials, clarifying the processing technology, workpiece materials, and precision requirements. Manufacturing primarily involves laser cutting of the base plate, while the support blocks can be laser cut or cast. Installation / adjustment involves installing the positioning blocks on the base plate, mainly using screws for fastening.

[0003] The existing projection welding fixtures support or correspond to relatively simple parts. Different parts require different fixtures, and it takes a long time for workers to change fixtures, resulting in low production efficiency. This is even more troublesome for multi-variety, small-batch production. Therefore, it is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This utility model provides a flexible projection welding fixture, which solves the problems in the prior art where the existing single projection welding fixture can only position one type of part, and the projection welding fixture cannot be used to process different types of parts, and the time-consuming and labor-intensive disassembly and assembly of the projection welding fixture; this utility model solves the problem of changeover efficiency in multi-variety, small-batch production and ensures that welding accuracy is not affected.

[0005] This utility model provides the following technical solution:

[0006] A flexible projection welding fixture includes a base plate, a first positioning support and a second positioning support. Both the first and second positioning supports are disposed on the base plate. The base plate has a U-shaped groove. The second positioning support is disposed on both sides of the U-shaped groove. The first positioning support is disposed on the two corners of the front end of the base plate. A third positioning support is also disposed on both sides of the opening of the U-shaped groove. The third positioning support is located at the rear end of the second positioning support. A support assembly is disposed at the lower end of the base plate.

[0007] This invention improves the efficiency of workpiece welding by setting multiple positioning support components on the base plate to match different types of parts for projection welding. This avoids the need to remove and replace the tooling during the workpiece welding process, while ensuring the support and limiting effect during the workpiece welding process and preventing workpiece displacement from affecting the welding quality.

[0008] Furthermore, the first positioning support includes an L-shaped fixing seat with a rectangular cross-section and a support column on the top of the fixing seat.

[0009] During use, the fixing seat adopts a rectangular cross-section structure. The top of the fixing seat is used to support the workpiece. The setting of the support column can support or limit different workpieces. When it plays a limiting role, the support column passes through the through hole on the workpiece to limit the workpiece.

[0010] Furthermore, the second positioning support includes a mounting base, a first connector and a second connector. The mounting base is L-shaped, and the front and rear ends of the mounting base are respectively provided with the first connector and the second connector by bolts. A first slot is provided between the first connector and the second connector and the mounting base.

[0011] To ensure the spacing of the first slot, a positioning sleeve is fitted on the bolt to ensure the spacing of the first slot. When in use, the side of the workpiece is clamped in the slot, which limits the workpiece. At the same time, the first connector and the second connector support the workpiece.

[0012] Furthermore, both the first connector and the second connector are provided with a pin seat and a first positioning pin. The pin seat is located on the side of the first connector or the second connector near the U-shaped groove, and the first positioning pin is located on the pin seat. A second slot is provided between the pin seat and the first connector or the second connector.

[0013] The pin seat is used to install the first positioning pin and also to support the workpiece. The first positioning pin is used to limit or support the workpiece. The second slot is set to limit the workpiece.

[0014] Furthermore, the mounting base is equipped with tightening bolts, and both ends of the mounting base are connected to the base plate via second positioning pins. A pin sleeve is provided between the base plate and the mounting base for the second positioning pin to pass through. The pin sleeve is used to guide, protect, and extend the service life of the second positioning pin. The tightening bolts are used to fix the mounting base.

[0015] Furthermore, the third connector includes a T-shaped base and a third connector, the third connector being fixed to the T-shaped base by bolts. The third connector is used to limit the rear end of the workpiece.

[0016] Furthermore, the third connector is Z-shaped, and a third slot is provided between the third connector and the T-shaped seat. The third slot is used to lock the rear end of the workpiece.

[0017] Furthermore, a connecting component is provided within the U-shaped groove.

[0018] Furthermore, the connecting assembly includes a fourth connector and a tightening block. The fourth connector is connected to the base plate by bolts, and the upper end of the fourth connector is provided with a tightening block.

[0019] Furthermore, the support assembly includes a U-shaped support plate, with a first pad and a second pad at the lower end of the support plate; an insulating layer is provided at the upper end of the support plate, and the support plate is mounted on the lower end of the base plate by bolts with insulating sleeves; handles are provided on the left and right sides of the base plate. The insulating pads and insulating screw sleeves mainly serve an insulating function to prevent electrical conduction between the support assembly and the base plate, ensuring operational safety.

[0020] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0021] In this utility model, by setting multiple positioning support members on the base plate, different positioning support members support and limit different types of workpieces to complete the projection welding fixture smoothly, thereby solving the problems that currently a single projection welding fixture can only position one type of part, the projection welding fixture cannot be used for processing different types of parts, and the time-consuming and labor-intensive disassembly and assembly of the projection welding fixture.

[0022] This utility model effectively solves the efficiency problem of model changeover in multi-variety, small-batch production, and ensures that welding accuracy is not affected; during the installation process, the workpiece is positioned by the first or second slot on the second positioning support, and at the same time, combined with the supporting role of the first positioning pin, the first connecting piece or the second connecting piece, the workpiece can be well limited and supported.

[0023] The third positioning support limits the side of the workpiece, further reducing the displacement of the workpiece and improving the accuracy of the projection welding fixture. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the workpiece installation according to this utility model;

[0026] Figure 3 This is a schematic diagram of the projection welding workpiece of this utility model;

[0027] Figure 4 for Figure 3 A bottom view of the structure;

[0028] 1. Tighten bolts; 2. Base plate; 3. First connector; 4. Pin seat; 5. First positioning pin; 6. Support column; 7. Fixing seat; 8. Handle; 9. Fixing hole; 10. Insulating sleeve; 11. Third connector; 12. T-slot; 13. Connecting assembly; 14. Second pad; 15. Insulating layer; 16. Second connector; 17. Pin sleeve; 18. Second positioning pin; 19. Mounting seat; 20. First slot; 21. Second slot; 22. Workpiece; 23. First positioning support; 24. Third positioning support; 25. Second positioning support; 26. Support plate; 27. Fourth connector; 28. Tightening block; 29. ​​First pad. Detailed Implementation

[0029] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0030] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to 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 embodiments of this utility model.

[0031] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0032] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0034] Example

[0035] Reference Figures 1-4 A flexible projection welding fixture includes a base plate 2, a first positioning support 23, and a second positioning support 25, such as... Figure 2 As shown, the thickness direction of the base plate 2 is the vertical direction, with the side of the base plate 2 facing the workpiece being the upper side and the other side being the lower side. The width direction of the base plate 2 is the front-back direction, with the end facing the observation direction being the rear end and the other end being the front end. The first positioning support 23 and the second positioning support 25 are both set on the base plate 2. The base plate 2 has a U-shaped groove. The second positioning support 25 is set on both sides of the U-shaped groove. The first positioning support 23 is set on the two corners of the front end of the base plate 2. The third positioning support 24 is also set on both sides of the opening of the U-shaped groove. The third positioning support 24 is located at the rear end of the second positioning support 25. The lower end of the base plate 2 is provided with a support assembly.

[0036] This utility model provides multiple positioning support components on the base plate 2 to match different models of parts for projection welding, thereby avoiding the need to remove and replace the tooling during the welding process of the workpiece 22, improving the efficiency of welding the workpiece 22, and ensuring the support and limiting effect during the welding process of the workpiece 22, preventing the workpiece 22 from shifting and affecting the welding quality.

[0037] In this embodiment, two first positioning supports 23 are provided, respectively located on the left and right sides of the U-shaped groove. Each first positioning support 23 includes an L-shaped fixing seat 7 with a rectangular cross-section, and a support column 6 on its top. During use, the fixing seat 7, with its rectangular cross-section, supports the workpiece 22. The support column 6 can support or limit different workpieces 22. When limiting, the support column 6 passes through a through-hole on the workpiece 22 to limit its position. Preferably, the support column 6 is cylindrical and fixed to the top of the fixing seat 7 with bolts. The support column 6 is made of insulating rubber, which improves insulation and provides cushioning, reducing damage to the workpiece 22.

[0038] In this embodiment, the second positioning support 25 includes a mounting base 19, a first connector 3, and a second connector 16. The mounting base 19 is L-shaped. The first connector 3 and the second connector 16 are respectively provided on the front and rear ends of the mounting base 19 by bolts. The first connector 3 is located at the front end of the mounting base 19, and the second connector 16 is located at the rear end of the mounting base 19. A first slot 20 is provided between the first connector 3 and the second connector 16 and the mounting base 19. To ensure the spacing of the first slot 20, a positioning sleeve is fitted on the bolt to ensure the spacing of the first slot 20. In use, the side of the workpiece 22 is clamped in the slot, which plays a limiting role for the workpiece 22. At the same time, the first connector 3 and the second connector 16 can support the workpiece 22.

[0039] Both the first connector 3 and the second connector 16 are provided with a pin seat 4 and a first positioning pin 5. The pin seat 4 is located on the side of the first connector 3 or the second connector 16 near the U-shaped groove. The pin seat 4 is L-shaped and has a step on the side of the pin seat 4 near the U-shaped groove. The first positioning pin 5 is located on the step. The first positioning pin 5 is located on the pin seat 4. At the same time, a second slot 21 is provided between the pin seat 4 and the first connector 3 or the second connector 16. The pin seat 4 is used to install the first positioning pin 5 and also to support the workpiece 22. The first positioning pin 5 is used to limit or support the workpiece 22. The second slot 21 is provided to limit the workpiece 22. Preferably, the first connector 3, the second connector 16, and the pin seat 4 are each provided with three mounting holes, which are arranged in a straight line in the vertical direction. The first connector 3 and the second connector 16 are installed in different mounting holes by bolts to achieve their installation positions on the mounting base 19. Similarly, the pin seat 4 is also adjusted in height by bolts to the position of the first connector 3 or the second connector 16. The limiting function of the first slot 20 and the second slot 21 is not affected when the height is adjusted during installation.

[0040] More preferably, the mounting base 19 is provided with tightening bolts 1, and both ends of the mounting base 19 are connected to the base plate 2 through second positioning pins 18. A pin sleeve 17 is provided between the base plate 2 and the mounting base 19 for the second positioning pins 18 to pass through. The pin sleeve 17 is provided to guide, protect and extend the service life of the second positioning pins 18. The tightening bolts 1 are used to fix the mounting base 19.

[0041] In this embodiment, the third positioning support 24 includes a T-shaped base 12 and a third connector 11, which is fixed to the T-shaped base 12 by bolts. The third connector 11 is used to limit the rear end of the workpiece 22. Preferably, the third connector 11 is Z-shaped, and a third slot is provided between the third connector 11 and the T-shaped base 12. The third slot is used to lock the rear end of the workpiece 22, thereby improving the limiting effect on the workpiece 22.

[0042] In this embodiment, a connecting component 13 is provided in the U-shaped groove; the connecting component 13 includes a fourth connecting member 27 and a tightening block 28. The fourth connecting member 27 is connected to the base plate 2 by bolts, and the upper end of the fourth connecting member 27 is provided with a tightening block 28; the main function of the connecting component 13 is to add a support member to the connecting component 13 to improve the support effect on the workpiece 22, and at the same time, it can also play a role in lateral limiting of the workpiece 22.

[0043] In this embodiment, the support assembly includes a U-shaped support plate 26, with a first pad 29 and a second pad 14 at the lower end of the support plate 26; an insulating layer 15, which is an insulating gasket, is provided at the upper end of the support plate 26; the support plate 26 is bolted to the lower end of the base plate 2 by means of an insulating sleeve 10; handles 8 are provided on the left and right sides of the base plate 2. The insulating gasket and insulating sleeve mainly serve an insulating function to prevent electrical conduction between the support assembly and the base plate 2, thereby improving operational safety. Preferably, the base plate 2 has a fixing hole 9, and an insulating sleeve 10 is provided inside the fixing hole 9. The bolt passes through the insulating sleeve 10 to fix the support plate 26 to the lower end of the base plate 2. The insulating sleeve 10 serves both an insulating and cushioning function.

[0044] In this utility model, by setting multiple positioning support members on the base plate 2, different positioning support members support and limit the workpieces 22 of different models to complete the projection welding fixture smoothly, thereby solving the problem that a single projection welding fixture can only position one type of part, the projection welding fixture cannot be used for processing different types of parts, and the disassembly and assembly of the projection welding fixture is time-consuming and laborious.

[0045] This utility model effectively solves the efficiency problem of model changeover in multi-variety, small-batch production, and ensures that welding accuracy is not affected. During installation, the workpiece 22 is positioned by the first slot 20 or the second slot 21 on the second positioning support 25. At the same time, combined with the supporting effect of the first positioning pin 5, the first connecting piece 3 or the second connecting piece 16, the workpiece 22 can be well limited and supported. The side of the workpiece 22 is limited by the third positioning support 24, which further reduces the displacement of the workpiece 22 and improves the accuracy of the projection welding fixture.

[0046] The working principle of this application is as follows: During use, the workpiece 22 is installed on the fixture. Different workpieces 22 are used in conjunction with matching positioning supports to support, limit, and lock the workpiece 22, ensuring that the workpiece 22 does not shift during projection welding on the fixture, thus ensuring the projection welding effect; as shown in the attached... Figure 2-4As shown, the right side of the workpiece 22 is secured in the second slot 21, and the pin seat 4 supports the workpiece 22. The left side of the workpiece 22 can be supported by other support fixtures that work in conjunction with the fixture in this utility model, so as to ensure the stability of the position of the workpiece 22 during projection welding. Schematic diagrams of projection welding of other different models of workpiece 22 are not shown here.

[0047] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A flexible projection welding fixture, comprising a base plate, a first positioning support, and a second positioning support, both the first and second positioning supports being disposed on the base plate, the base plate having a U-shaped groove, the second positioning support being disposed on both sides of the U-shaped groove, and the first positioning support being disposed on two corners of the front end of the base plate, characterized in that: The U-shaped groove opening is further provided with a third positioning support on both sides. The third positioning support is located at the rear end of the second positioning support, and a support assembly is provided at the lower end of the base plate.

2. The flexible projection welding fixture according to claim 1, characterized in that: The first positioning support includes an L-shaped fixing seat with a rectangular cross-section and a support column on the top of the fixing seat.

3. The flexible projection welding fixture according to claim 1, characterized in that: The second positioning support includes a mounting base, a first connector and a second connector. The mounting base is L-shaped, and the first connector and the second connector are respectively provided on the front and rear ends of the mounting base by bolts. A first slot is provided between the first connector and the second connector and the mounting base.

4. The flexible projection welding fixture according to claim 3, characterized in that: Both the first connector and the second connector are provided with a pin seat and a first positioning pin. The pin seat is located on the side of the first connector or the second connector near the U-shaped groove, and the first positioning pin is located on the pin seat. A second slot is provided between the pin seat and the first connector or the second connector.

5. The flexible projection welding fixture according to claim 3, characterized in that: The mounting base is equipped with tightening bolts, and both ends of the mounting base are connected to the base plate through first positioning pins. A pin sleeve is provided between the base plate and the mounting base for the first positioning pin to pass through.

6. The flexible projection welding fixture according to claim 1, characterized in that: The third positioning support includes a T-shaped base and a third connecting member, which is fixed to the T-shaped base by bolts.

7. The flexible projection welding fixture according to claim 6, characterized in that: The third connector is Z-shaped, and a third slot is provided between the third connector and the T-shaped seat.

8. The flexible projection welding fixture according to claim 1, characterized in that: A connecting component is provided inside the U-shaped groove.

9. The flexible projection welding fixture according to claim 8, characterized in that: The connecting assembly includes a fourth connector and a tightening block. The fourth connector is connected to the base plate by bolts, and the upper end of the fourth connector is provided with a tightening block.

10. The flexible projection welding fixture according to claim 1, characterized in that: The support assembly includes a U-shaped support plate, with a first pad and a second pad at the lower end of the support plate; an insulating layer is provided at the upper end of the support plate, and the support plate is mounted on the lower end of the base plate by bolts with insulating sleeves; handles are provided on the left and right sides of the base plate.

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