Positioning and clamping mechanism for chassis structural part welding installation support

Abstract

The utility model discloses a positioning and clamping mechanism for a chassis structural member welding mounting bracket, which is characterized in that gaskets are positioned between a left limiting block and a middle connecting block as well as between the middle connecting block and a right limiting block, and the left limiting block, the middle connecting block, the right limiting block and the gaskets are fixedly connected through bolts; the rear ends of the gaskets are flush with the left limiting block, the middle connecting block and the right limiting block, the front ends of the gaskets are shorter than the left limiting block, the middle connecting block and the right limiting block, and bolt holes matched with flange bolts are formed in the front ends of the left limiting block, the middle connecting block and the right limiting block. And the flange bolt sequentially penetrates through bolt holes in the mounting bracket, the limiting block and the chassis structural member to fix the mounting bracket on the chassis structural member. After being welded, a positioning chassis structural member sample piece has the advantages of coaxiality and parallelism of the two ends of an opening, the production quality is effectively improved, the coaxiality of a welded product is good, the parallelism of the two end faces of the opening is good, and the dimensional stability is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning mechanisms for important parts such as control arms or anti-collision beam mounting brackets in chassis structural component assemblies, and in particular to a positioning clamping mechanism for welding mounting brackets of chassis structural components. Background Art

[0002] When the chassis components of automobiles are welded and positioned using traditional hexagonal bolts, the assembly opening of the welded assembly is likely to be in a trumpet-shaped shape (e.g. Figure 1 As shown in the figure, the coaxiality of the two assembly holes and the parallelism of the two opening end faces of the assembly surface are not up to standard. The thickness of the limit block used in the prior art cannot be adjusted, which is inconvenient to use, and after welding is completed, the limit block is not easy to withdraw. Utility Model Content

[0003] The utility model aims to make up for the problems existing in the conventional hexagonal bolt positioning of automobile chassis structural parts in the prior art, such as the conventional hexagonal bolt positioning, the control of the limit block surface and the hole size, the unstable coaxiality after welding, the poor parallelism of the two end surfaces of the opening, the unstable size, the inability to adjust the thickness of the limit block, the inconvenience in use, and the difficulty in withdrawing the limit block after welding. The utility model provides a positioning and clamping mechanism for the welding and mounting bracket of the chassis structural parts.

[0004] The utility model is realized by the following technical solutions:

[0005] A positioning and clamping mechanism for welding a mounting bracket of a chassis structure comprises a chassis structure, a mounting bracket, a flange bolt and a limit block, wherein the limit block comprises a left limit block, a middle connecting block, a right limit block and a gasket, wherein the gasket is located between the left limit block and the middle connecting block and between the middle connecting block and the right limit block, and the left limit block, the middle connecting block, the right limit block and the gasket are fixedly connected by bolts, the rear end of the gasket is flush with the left limit block, the middle connecting block and the right limit block, and the front end is shorter than the left limit block, the middle connecting block and the right limit block, and bolt holes matching the flange bolts are opened at the front ends of the left limit block, the middle connecting block and the right limit block, and the flange bolts pass through the bolt holes on the mounting bracket, the limit block and the chassis structure in sequence to fix the mounting bracket to the chassis structure.

[0006] It also includes a cylinder and a cylinder connecting seat, wherein the middle connecting block is an L-shaped block, the middle connecting block and the cylinder connecting seat are fixedly connected by bolts, and the cylinder connecting seat is connected to the cylinder motion rod.

[0007] The advantages of the utility model are: the utility model has a reasonable structural design, and the positioning of the chassis structural component sample is achieved through the flange surface of the flange bolt. The flange surface is larger than the hexagonal bolt surface. After the limit block surface and the hole size are controlled, the fit between the installation surface and the limit block is guaranteed, and the parallelism of the installation surface is fully guaranteed. Therefore, after the positioning chassis structural component sample is welded, it has the advantages of coaxiality and parallelism of both ends of the opening, which effectively improves the production quality. The coaxiality of the product after welding is good, and the parallelism of the two end surfaces of the opening is good, which effectively guarantees the dimensional stability; by replacing gaskets of different thicknesses, the thickness of the limit block is adjusted, and it is easy to use. The limit block is connected to the cylinder, which is convenient to install. After welding is completed, the limit block is pulled out through the cylinder, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure after welding is completed in the prior art;

[0009] Figure 2 It is a structural schematic diagram of the utility model;

[0010] Figure 3 It is a schematic diagram of the flange bolt structure;

[0011] Figure 4 This is a schematic diagram of the mounting bracket structure;

[0012] Figure 5 It is a schematic diagram of the limit block structure;

[0013] Figure 6 It is a top view of the limit block;

[0014] Figure 7 A partial schematic diagram of the chassis structure. DETAILED DESCRIPTION

[0015] like Figure 2-7 As shown, a positioning clamping mechanism for welding a mounting bracket of a chassis structure comprises a chassis structure 1, a mounting bracket 2, a flange bolt 3 and a limit block 4, wherein the limit block 4 comprises a left limit block 41, an intermediate connecting block 42, a right limit block 43 and a gasket 44, wherein the gasket 44 is located between the left limit block 41 and the intermediate connecting block 42 and between the intermediate connecting block 42 and the right limit block 43, and the left limit block 41, the intermediate connecting block 42, the right limit block 43 and the gasket 44 are connected to each other. The gasket 44 is fixedly connected by bolts, the rear end of which is flush with the left limit block 41, the middle connection block 42, and the right limit block 43, and the front end is shorter than the left limit block 41, the middle connection block 42, and the right limit block 43. Bolt holes matching the flange bolts 3 are opened at the front ends of the left limit block 41, the middle connection block 42, and the right limit block 43. The flange bolts 3 pass through the bolt holes on the mounting bracket 2, the limit block 4, and the chassis structure 1 in turn to fix the mounting bracket 2 on the chassis structure 1.

[0016] It also includes a cylinder 5 and a cylinder connecting seat 6. The middle connecting block 42 is an L-shaped block. The middle connecting block 42 is fixedly connected to the cylinder connecting seat 6 by bolts. The cylinder connecting seat 6 is connected to the moving rod of the cylinder 5.

[0017] When the utility model is used, the mounting bracket 2 is fixed on the chassis structure 1 by passing the flange screw 3 through the bolt holes on the mounting bracket 2, the limit block 4 and the chassis structure 1, and then the limit block 4 is connected to the cylinder connection seat 6, and the cylinder connection seat 6 is connected to the cylinder 5. After the assembly is completed, because the flange surface of the flange bolt 3 increases the contact surface with the mounting bracket, after the bolt is locked, the parallelism of the two end surfaces of the opening is guaranteed. It will not cause coaxiality difference and bell-mouth parts, and greatly improve the opening position size, coaxiality and surface parallelism qualification rate of the chassis parts after production. After welding is completed, the flange bolt is screwed out and the limit block is pulled out through the cylinder.

[0018] The utility model effectively improves the production quality of chassis structural parts samples, has good coaxiality, good parallelism of both end surfaces of the opening, and effectively ensures dimensional stability.

[0019] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. Such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0020] The present invention is not limited to the specific details in the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A positioning and clamping mechanism for a chassis structural member welding mounting bracket, characterized in that: It includes a chassis structure, a mounting bracket, a flange bolt and a limit block, the limit block includes a left limit block, a middle connecting block, a right limit block and a gasket, the gasket is located between the left limit block and the middle connecting block and between the middle connecting block and the right limit block, the left limit block, the middle connecting block, the right limit block and the gasket are fixedly connected by bolts, the rear end of the gasket is flush with the left limit block, the middle connecting block and the right limit block, and the front end is shorter than the left limit block, the middle connecting block and the right limit block, bolt holes matching the flange bolts are opened at the front ends of the left limit block, the middle connecting block and the right limit block, the flange bolts pass through the bolt holes on the mounting bracket, the limit block and the chassis structure in turn, and fix the mounting bracket to the chassis structure.

2. A positioning and clamping mechanism for a chassis structural member welding mounting bracket according to claim 1, characterized in that: It also includes a cylinder and a cylinder connecting seat, wherein the middle connecting block is an L-shaped block, the middle connecting block and the cylinder connecting seat are fixedly connected by bolts, and the cylinder connecting seat is connected to the cylinder motion rod.

Images