A welding positioning fixture for automotive parts production

Abstract

This invention relates to a welding positioning fixture for automotive parts production, belonging to the field of welding fixture technology. It includes a worktable with a support plate on it, a base on the support plate, and a workpiece placed on the base; a pressure plate positioned above the worktable, located on both sides of the support plate and abutting against the base; and several assemblies mounted on the pressure plate, abutting against both sides of the workpiece. Each assembly is mounted on the side of the pressure plate facing the base. This invention provides high positioning efficiency for irregularly shaped parts and, by processing only the assemblies, significantly reduces costs compared to producing complete fixtures, thus improving product competitiveness.

Description

Technical Field

[0001] This invention belongs to the field of welding tooling technology, and specifically relates to a welding positioning tooling for the production of automotive parts. Background Technology

[0002] In the process of manufacturing automotive parts, the parts need to be clamped and positioned before production or assembly welding.

[0003] Patent document CN202020439522.2 discloses an automotive tooling fixture, including a base plate, a worktable, a hydraulic telescopic rod, and clamping plates. The four corners of the top of the worktable are fixedly connected to electric telescopic rods. The top of the base plate is movably connected to an annular sliding plate. The top of the base plate has a groove adapted to the annular sliding plate. The clamping plates on both sides are pushed by the hydraulic telescopic rod to clamp and position the parts located between the two clamping plates.

[0004] The clamping plates in the above-mentioned technical solution move from both sides and are straight without bending, which can effectively clamp some geometrically regular parts. However, among a wide range of automotive parts, some parts have different shapes. Limiting the parts from only both sides can lead to instability and easy shaking. In addition, traditional technical solutions require special fixtures for irregularly shaped parts. As parts are developed and iterated, the cost of developing and producing these special fixtures is also increasing. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides research and improvement for the current issues of cumbersome welding and positioning of irregularly shaped automotive parts, as well as their poor stability, and addresses the positioning of irregularly shaped parts.

[0006] To overcome the problems existing in the prior art, the present invention provides the following technical solution:

[0007] A welding positioning fixture for automotive parts production, comprising:

[0008] A workbench, wherein a support plate is provided on the workbench, a base is provided on the support plate, and a workpiece is placed on the base;

[0009] The pressure plate is positioned above the workbench and is located on both sides of the support plate, abutting against the base.

[0010] An assembly is mounted on a pressure plate and abuts against both sides of the workpiece;

[0011] The assembly includes several components, which are installed on the side of the pressure plate facing the base.

[0012] Furthermore, lifting components are vertically arranged on both sides of the work platform, and a fixed seat is provided on the work platform. A lifting rod is provided inside the lifting component, and the output end of the lifting rod extends upward and is rotatably connected to a rotating rod. A connecting rod is provided between the rotating rod and the fixed seat, and the two ends of the connecting rod are rotatably connected to the rod body of the rotating rod and the fixed seat, respectively.

[0013] Furthermore, the lifting rod is a hydraulic telescopic rod.

[0014] Furthermore, the workbench includes a bottom plate located below and a top plate located above, and the bottom plate and the top plate are connected by a support plate. The bottom plate and the top plate have mounting openings on both sides corresponding to the positions of the lifting components.

[0015] Furthermore, an adjusting member is installed between the support plate and the top plate, and the adjusting member is configured to adjust the height distance between the support plate and the top plate.

[0016] Furthermore, the pressure plate consists of two pieces, which are flipped and arranged facing each other.

[0017] Furthermore, a curved portion is formed at one end of the pressure plate facing the base, and a curved groove is formed in the middle of the side wall of the curved portion. A limiting groove with the same shape as the groove trajectory is formed at both the upper and lower ends of the groove, and the two ends of the groove and the limiting groove penetrate through both sides of the pressure plate.

[0018] Furthermore, the shape of the assembly is adapted to the side of the workpiece, and the side wall of the assembly that fits with the curved part is provided with a slide bar. The upper surface of the slide bar and the upper surface of the slide bar are respectively provided with limiting members. The slide bar and the limiting members are slidably connected to and fitted with the sliding groove and the limiting groove of the pressure plate, respectively.

[0019] Furthermore, the assembly is located above the base, and several anti-slip ribs are provided at intervals on the end faces of the assembly and the base corresponding to each other.

[0020] Furthermore, the anti-slip ribs are made of rubber.

[0021] The beneficial effects of this invention are as follows: This invention uses two opposing rotating pressure plates to fix the base. Compared with the traditional left-right abutment method, this fixture can effectively position irregularly shaped workpieces. At the same time, compared with some vertical positioning mechanisms, the end of this fixture is detachably equipped with an assembly. The assembly can be selected according to the shape of the irregularly shaped workpiece, such as an assembly with a notch or groove in the middle. These specially shaped assemblies will avoid the protruding parts of the irregularly shaped workpiece when pressed down until they abut against the base. It is effective in fixing some workpieces that are large and irregularly shaped at the top and small at the bottom, with high positioning efficiency. Moreover, only the assembly is processed, which greatly reduces the cost compared to producing a complete fixture, thus improving product competitiveness.

[0022] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of the welding positioning fixture according to an embodiment of the present invention is shown;

[0025] Figure 2 A front view of the welding positioning fixture according to an embodiment of the present invention is shown;

[0026] Figure 3 This diagram shows a bottom view of the pressure plate of the welding positioning fixture and the workpiece according to an embodiment of the present invention.

[0027] Figure 4 A cross-sectional view of the pressure plate and assembly of the welding positioning fixture according to an embodiment of the present invention is shown;

[0028] Figure 5 A schematic diagram of the pressure plate of the welding positioning fixture according to an embodiment of the present invention is shown;

[0029] Figure 6 A schematic diagram of the assembly of the welding positioning fixture according to an embodiment of the present invention is shown.

[0030] In the picture

[0031] 1 - Workbench, 11 - Base plate, 12 - Top plate, 13 - Support plate, 2 - Lifting component, 21 - Rotating rod, 22 - Fixed seat, 23 - Connecting rod, 3 - Support plate, 31 - Adjusting component, 4 - Workpiece, 41 - Base, 5 - Pressure plate, 51 - Bending part, 52 - Slide groove, 53 - Slide groove, 6 - Assembly component, 61 - Slide bar, 62 - Limiting component, 63 - Anti-slip rib. Detailed Implementation

[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that the terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings.

[0035] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0036] like Figure 1 A welding positioning fixture for the production of automotive parts, wherein a support plate 3 is provided on the workbench 1, a base 41 is provided on the support plate 3, and a workpiece 4 is placed on the base 41, wherein the lateral expansion range of the workpiece 4 is smaller than the lateral expansion range of the base 41.

[0037] like Figure 2 As shown, the workbench 1 includes a bottom plate 11 and a top plate 12, which are connected by a support plate 13. Lifting components 2 are placed vertically on both sides of the workbench 1. The lifting components 2 are equipped with lifting rods, which are hydraulic telescopic rods. The bottom plate 11 and the top plate 12 have mounting openings on both sides corresponding to the positions of the lifting components 2, that is, the lifting components 2 are embedded in the workbench 1, thereby reducing the overall area occupied by the mechanism.

[0038] An adjusting component 31 is installed between the support plate 3 and the top plate 12. The adjusting component 31 is configured to adjust the height distance between the support plate 3 and the top plate 12. The adjusting component 31 uses screws and nuts. By adjusting the adjusting component 31, the distance between the support plate 3 and the top plate 12 can be changed. When the base 41 is thick and the pressure plate 5 and the assembly 6 have not yet been flipped into place, it is easy for the base 41 to abut against it, which will cause the positioning to be unstable. Therefore, it is necessary to adjust the height of the support plate 3 through the adjusting component 31. For example, after lowering the height of the support plate 3, the pressure plate 5 is flipped over. The pressure plate 5 has more space to rotate and press down, so that the bottom surface of the pressure plate 5 and the assembly 6 fits against the top surface of the base 41, achieving the best positioning effect.

[0039] like Figure 2 As shown, a fixed seat 22 is fixed on the top surface of the top plate 12. The fixed seat 22 is located between the lifting member 2 and the support plate 3. The output end of the lifting member 2 extends upward and is rotatably connected to one end of the rotating rod 21. The other end of the rotating rod 21 is fixedly connected to the pressure plate 5. A connecting rod 23 is provided between the rotating rod 21 and the fixed seat 22. The two ends of the connecting rod 23 are rotatably connected to the rod body of the rotating rod 21 and the fixed seat 22, respectively.

[0040] like Figure 4 The pressure plate 5 is located above the workbench 1. The pressure plate 5 is located on both sides of the support plate 3 and abuts against the base 41. There are two pressure plates 5, which are flipped and facing each other.

[0041] like Figure 5 The pressure plate 5 has a curved part 51 at one end facing the base 41. A curved groove 52 is formed in the middle of the side wall of the curved part 51. A limiting groove 53 with the same trajectory shape as the groove 52 is formed at the upper and lower ends of the groove 52. The two ends of the groove 52 and the limiting groove 53 pass through both sides of the pressure plate 5.

[0042] like Figure 6 Assembly 6 is mounted on pressure plate 5 and abuts against both sides of workpiece 4. The shape of assembly 6 is adapted to the side of workpiece 4. A slide bar 61 is provided on the side wall of assembly 6 that fits against the curved portion 51. Limiting elements 62 are respectively provided on the upper surface and the upper surface of slide bar 61. Slide bar 61 and limiting elements 62 are slidably connected to and engaged with the sliding groove 52 and limiting groove 53 of pressure plate 5, respectively. Assembly 6 is located above base 41, and several anti-slip ribs 63 are spaced apart on the end faces of assembly 6 corresponding to base 41. The anti-slip ribs 63 are made of rubber.

[0043] The pressure plate 5 has a bent portion 51 at one end facing the base 41. An assembly 6 is detachably connected to the bent portion 51. When the base 41 is placed above the support plate 3, the output end of the lifting member 2 extends upwards, and the rotating rod 21 rotates downwards under the constraint of the connecting rod 23 until the pressure plate 5 abuts against the base 41 and the assembly 6 abuts against the workpiece 4, thus positioning the base 41 and the workpiece 4. Welding operations can then be performed. Compared to the traditional left-right abutment method, this fixture can effectively position irregularly shaped workpieces. Furthermore, compared to some vertically positioned... The positioning mechanism has a detachable assembly 6 at the end of the tooling. The assembly 6 can be selected according to the shape of the irregular workpiece. For example, the assembly 6 with a notch or groove in the middle will avoid the protrusion or recess of the irregular workpiece when pressed down until it abuts against the base 41. It is effective for fixing some workpieces 4 with large upper dimensions and irregular shape and small lower dimensions. The positioning efficiency is high. Moreover, only the assembly 6 is processed. Compared with the production of a complete fixture, the cost is greatly reduced, which is conducive to improving product competitiveness.

[0044] Based on the shape of workpiece 4, select a suitable assembly 6. The requirement is that the assembly 6 has a structure that matches the protruding and recessed positions of workpiece 4. Then, move the suitable assembly 6 to both sides of the pressure plate 5 and insert the slide bar 61 into the slide groove 52. The limiting groove 53 and the limiting member 62 cooperate to guide the sliding trajectory of the slide bar 61 and keep the assembly 6 stable when pressing down. After the base 41 is fixed on the support plate 3, the output end of the lifting member 2 is upward, and the two pressure plates 5 are flipped in opposite directions. During the flipping process, the pressure plate 5 and the assembly 6 are misaligned with the workpiece 4 until the pressure plate 5 and the assembly 6 abut against the base 41, thereby limiting and fixing the base 41. The end face of the assembly 6 that abuts against the base 41 is also provided with several anti-slip ribs 63 at intervals. The anti-slip ribs 63 are made of rubber, and there are empty grooves between adjacent anti-slip ribs 63. When pressing down, the air between the assembly 6 and the top surface of the base 41 can be discharged, which can better fix the base 41.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding fixture for positioning of automobile parts for production, characterized by: The utility model relates to a workbench, which comprises a workbench (1) provided with a support plate (3) on which a base (41) is arranged, and a workpiece (4) is placed on the base (41); a pressing plate (5) is arranged above the workbench (1) and is arranged on both sides of the support plate (3) and abuts against the base (41); an assembly part (6) is installed on the pressing plate (5) and abuts against both sides of the workpiece (4); wherein the assembly part (6) is provided with a plurality of assembly parts (6) installed on one side of the pressing plate (5) facing the base (41); vertical jacking parts (2) are arranged on both sides of the workbench (1), a fixed seat (22) is arranged on the workbench (1), the jacking part (2) is internally provided with a jacking rod, the output end of the jacking rod extends upward and is rotationally connected with a rotating rod (21), the other end of the rotating rod (21) is fixedly connected with the pressing plate (5), a connecting rod (23) is arranged between the rotating rod (21) and the fixed seat (22), and both ends of the connecting rod (23) are rotationally connected with the rod body of the rotating rod (21) and the fixed seat (22); the workbench (1) comprises a bottom plate (11) located below and a top plate (12) located above, the bottom plate (11) and the top plate (12) are connected through a support plate (13), and installation openings are formed in the bottom plate (11) and the top plate (12) on both sides corresponding to the positions of the jacking parts (2); an adjusting part (31) is installed between the support plate (3) and the top plate (12), and the adjusting part (31) is configured to adjust the height distance between the support plate (3) and the top plate (12). The jacking rod is a hydraulic telescopic rod. The pressing plate (5) is formed by two pressing plates (5) arranged oppositely. One end of the pressing plate (5) facing the base (41) is formed with a curved portion (51), a curved sliding groove (52) is formed in the middle of the side wall of the curved portion (51), the upper end and the lower end of the sliding groove (52) are formed with limiting grooves (53) with the same track shape as the sliding groove (52), and the two ends of the sliding groove (52) and the limiting groove (53) penetrate through both sides of the pressing plate (5). The assembly part (6) is adapted to the shape of the side surface of the workpiece (4), the side wall of the assembly part (6) abutting against the curved portion (51) is provided with a sliding strip (61), the upper surface and the lower surface of the sliding strip (61) are respectively provided with limiting parts (62), and the sliding strip (61) and the limiting parts (62) are respectively slidably connected with and embedded in the sliding groove (52) and the limiting groove (53) of the pressing plate (5). The assembly part (6) is located above the base (41), and a plurality of anti-skid ribs (63) are arranged at intervals on the end surface of the assembly part (6) corresponding to the base (41). The anti-skid ribs (63) are made of rubber. ​ 2. The welding positioning fixture for automobile parts production as claimed in claim 1 wherein: ​ 3. The welding positioning fixture for automobile parts production as claimed in claim 1 wherein: ​ 4. The welding positioning fixture for automobile parts production as claimed in claim 1 wherein: ​ 5. The welding positioning fixture for automobile parts production as claimed in claim 1 wherein: ​ 6. The welding positioning fixture for automobile parts production as claimed in claim 1 wherein: ​ 7. The welding fixture for production of automobile parts as claimed in claim 6 wherein: ​

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