Magnetic molded surface positioning structure for automobile part welding fixture

Abstract

The utility model discloses a magnetic molded surface positioning structure used on an automobile part welding clamp, which comprises a molded surface positioning block and a rubidium magnet, the rubidium magnet is arranged on the molded surface positioning block, the molded surface positioning block comprises a base, a limiting seat and a support, the limiting seat is arranged on the base, the support is arranged on the limiting seat, and the rubidium magnet is arranged on the support. The support is arranged at one end of the base, a containing space is formed between the support and the limiting base and used for containing a to-be-welded part, the four sets of rubidium magnets are arranged, two sets of rubidium magnets are arranged on the containing space, the other two sets of rubidium magnets are arranged on the support, and the rubidium magnets are arranged in the containing space. And the rubidium magnet is used for magnetically attracting and fixing the to-be-welded part. By means of the strong magnetic attraction force of the rubidium magnet, precise attraction of the part can be achieved, dependence on a positioning hole is not needed, and therefore the positioning error caused by the fact that the positioning hole is not high in precision or the part is prone to rebounding is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile component production and processing, in particular to a magnetic profile positioning structure used on an automobile component welding fixture. Background Art

[0002] Traditional welding fixtures utilize locating pins and flat clamping blocks mounted on the part's clamping arms. When positioning and clamping a part, the locating pins pass through the part's locating holes, and the flat clamping blocks engage the part's flat surface, achieving both positioning and clamping. The parts being welded must have matching locating pin holes. In addition to the welding support surface, the part and the body also require additional flat clamping surfaces.

[0003] The welding fixture structure using locating pins for positioning and plane clamping has the following problems:

[0004] Question 1: The welded parts are positioned using positioning holes, which is only applicable to the positioning of parts with holes and high hole position accuracy.

[0005] Question 2: The welded parts are positioned using locating holes. When welding thin parts, since thin parts are prone to springback, such as after the welding of "Z"-shaped sheet parts, the clamping arm rotates and opens, and the locating pins and locating holes are prone to interference, which poses high quality and safety risks.

[0006] Problem 3: Welded parts are clamped with flat clamping blocks. In addition to the welded lap surfaces, the parts also require flat clamping surfaces and part support surfaces, increasing the strength of the vehicle's structural design and the weight of the parts. This is detrimental to lightweight vehicle body design and increases part manufacturing costs. Utility Model Content

[0007] The purpose of this utility model is to solve the above technical problems, thereby providing a magnetic surface positioning structure for automobile parts welding fixtures;

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] The utility model provides a magnetic surface positioning structure for automobile parts welding fixtures.

[0010] It includes a profile positioning block and a rubidium magnet, which is arranged on the profile positioning block. The profile positioning block includes a base, a limit seat, and a support. The limit seat is arranged on the base, and the support is arranged at one end of the base. A placement space is formed between the support and the limit seat, and the placement space is used to place parts to be welded. The rubidium magnets are arranged in four groups, two groups of which are arranged on the placement space, and the other two groups of which are arranged on the support. The rubidium magnets are used to magnetically fix the parts to be welded.

[0011] Optionally, the side walls of the four groups of rubidium magnets are each provided with a first limiting block, and the first limiting block is used to limit the side wall of the part to be welded.

[0012] Optionally, a second limiting block is provided on the support, and the second limiting block is used to limit the left end of the part to be welded, and the limiting seat is used to limit the right end of the part to be welded.

[0013] Optionally, the limit seat includes a first limit seat and a second limit seat, the first limit seat is fixedly set on the base, the second limit seat is set on the left side of the first limit seat, and is screwed to the first limit seat. The screw is rotated to adjust the distance between the first limit seat and the second limit seat, and then the size of the placement space is adjusted to facilitate handling of parts to be welded of different sizes.

[0014] Optionally, the first limiting block is fixedly welded to the support and the base, and the second limiting block is fixedly welded to the support.

[0015] Optionally, a protective layer is provided on the surfaces of the first limiting block and the second limiting block facing the parts to be welded.

[0016] In summary, the present invention has the following beneficial effects:

[0017] This application utilizes the powerful magnetic attraction of the rubidium magnet to achieve precise adsorption of parts without relying on positioning holes, thereby avoiding positioning errors caused by low positioning hole accuracy or easy rebound of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model.

[0019] Figure 2 This is a top view of the structure of the utility model.

[0020] Figure 3 This is a state diagram used in the present utility model.

[0021] Explanation of the accompanying drawings: 1-needle magnet, 2-base, 3-support, 4-placing space, 5-first limiting block, 6-second limiting block, 7-first limiting seat, 8-second limiting seat, 9-screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example:

[0024] like Figure 1-Figure 3 As shown, the utility model provides a magnetic surface positioning structure for automobile parts welding fixtures.

[0025] It includes a profile positioning block and a rubidium magnet 1, which is arranged on the profile positioning block. The profile positioning block includes a base 2, a limit seat, and a support 3. The limit seat is arranged on the base 2, and the support 3 is arranged at one end of the base 2. A placement space 4 is formed between the support 3 and the limit seat. The placement space 4 is used to place the parts to be welded. The rubidium magnets 1 are set into four groups, two groups of which are arranged on the placement space 4, and the other two groups of the rubidium magnets 1 are arranged on the support 3. The rubidium magnets 1 are used to magnetically fix the parts to be welded.

[0026] Optionally, the side walls of the four groups of nepheline magnets 1 are all provided with first limiting blocks 5, and the first limiting blocks 5 are used to limit the side walls of the parts to be welded.

[0027] Optionally, a second limiting block 6 is provided on the support 3, and the second limiting block 6 is used to limit the left end of the part to be welded, and the limiting seat is used to limit the right end of the part to be welded.

[0028] Optionally, the limit seat includes a first limit seat 7 and a second limit seat 8. The first limit seat 7 is fixedly set on the base 2, and the second limit seat 8 is set on the left side of the first limit seat 7 and is connected to the first limit seat 7 by a screw 9. The screw 9 is rotated to adjust the distance between the first limit seat 7 and the second limit seat 8, thereby adjusting the size of the placement space 4, so as to cope with parts to be welded of different sizes.

[0029] Optionally, the first limiting block 5 is fixedly welded to the support 3 and the base 2 , and the second limiting block 6 is fixedly welded to the support 3 .

[0030] Optionally, a protective layer is provided on the surface of the first limiting block 5 and the second limiting block 6 facing the part to be welded.

[0031] This application proposes a magnetic surface positioning structure for automotive parts welding fixtures, which aims to solve the problems existing in traditional welding fixtures, such as part positioning limitations, interference risks caused by rebound of thin parts, and increased part design strength and weight.

[0032] The present application aims to utilize the magnetic attraction of the rubidium magnet 1 and the physical limitation of the limit block to achieve precise positioning and firm clamping of automotive parts without relying on positioning holes, thereby avoiding the limitations of traditional fixtures and improving the stability and safety of the welding process.

[0033] This application includes the following steps during use

[0034] Preparation stage:

[0035] The parts to be welded are placed in the placement space 4 of the magnetic profile positioning structure, which is formed by the limiting seat and the support 3.

[0036] Ensure that the four groups of nepheline magnets 1 are in working condition, two of which are located on the placement space 4 for directly magnetically fixing the parts; the other two groups are located on the support 3 for assisting in fixing the parts and preventing them from moving during the welding process.

[0037] Positioning phase:

[0038] After the rubidium magnet 1 is activated, it generates a strong magnetic attraction force, which tightly adsorbs the parts to be welded on the positioning structure to ensure that the position of the parts is stable during the welding process.

[0039] At the same time, the first limit blocks 5 on the side walls of the four groups of neodymium magnets 1 and the second limit blocks 6 on the support 3 work together to physically limit the side walls, left end and right end of the part, further enhancing positioning accuracy and stability.

[0040] Adjustment and adaptation stage:

[0041] If the size of the parts to be welded changes, the distance between the first limit seat 7 and the second limit seat 8 in the limit seat can be adjusted to accommodate parts of different sizes. The specific operation is to rotate the screw 9 between the two to adjust the size of the placement space 4.

[0042] Welding stage:

[0043] After the parts are stably positioned and clamped, welding operations are carried out. Since the parts are doubly fixed by magnetic attraction and physical limit, the parts will not move or deform during the welding process, ensuring the welding quality.

[0044] Completion and Release Phase:

[0045] After welding is completed, turn off the power of the rubidium magnet 1, the magnetic attraction disappears, and the welded parts can be easily removed.

[0046] If you need to use the positioning structure again, repeat the above steps.

[0047] In summary, the magnetic surface positioning structure of the present application achieves efficient and precise positioning of automotive parts by combining magnetic attraction and physical limitation, solves the problems existing in traditional welding fixtures, and improves welding quality and production efficiency.

[0048] The present application utilizes the strong magnetic attraction of the rubidium magnet 1 to achieve precise adsorption of parts without relying on positioning holes, thereby avoiding positioning errors caused by low positioning hole accuracy or easy rebound of parts.

[0049] Through the design of the limit blocks, the side walls, left end and right end of the part are physically limited, further enhancing the stability and accuracy of positioning. This double fixing method can keep the part in the same position even if it is subjected to external forces during the welding process.

[0050] The distance between the limit seats can be adjusted by the screw 9 to adapt to parts to be welded of different sizes. This flexibility allows the same set of clamps to be used for welding a variety of parts, reducing the cost of using the clamps and the frequency of replacement.

[0051] Since it does not rely on positioning holes, the positioning structure of the present application is applicable to more types of automotive parts, including thin parts and other parts that are prone to rebound, thereby expanding the application range of the clamp.

[0052] Stable positioning and clamping methods reduce the movement and deformation of parts during welding, thereby improving welding quality, which is crucial for ensuring the dimensional accuracy and performance of automotive parts.

[0053] No additional flat clamping surface and part support surface are required, which simplifies the structure of the welding fixture and the design of the parts and improves the welding efficiency.

[0054] Since no additional flat clamping surfaces and part support surfaces are required, the weight of automobile parts is reduced, which is conducive to lightweight design of the vehicle body and reduces fuel consumption and emissions.

[0055] The fixture has a simple structure and strong versatility, which reduces the manufacturing cost and maintenance cost of the fixture. At the same time, since the design complexity and weight of the parts are reduced, the manufacturing cost of the entire vehicle is indirectly reduced.

[0056] When traditional welding fixtures are used to weld thin-sheet parts, the thin-sheet parts are prone to rebound, which may cause interference between the positioning pins and the positioning holes, posing quality and safety risks. The positioning structure of this application effectively avoids this problem by combining magnetic fixation and physical limiting, thereby improving the safety of the welding process.

[0057] Due to the high degree of automation and easy operation of the fixture, the labor intensity of workers is reduced, work efficiency is improved, the heavy work such as positioning, clamping and workpiece flipping during manual assembly of parts is reduced, and the working conditions of workers are improved.

[0058] In summary, the magnetic surface positioning structure for automobile parts welding fixtures proposed in this application has significant beneficial effects in positioning accuracy and stability, adaptability, welding quality and efficiency, manufacturing cost and weight, safety, and working environment. These effects not only improve the welding quality of automobile parts, but also reduce production costs and labor intensity of workers, and have important practical application value.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic surface positioning structure for automobile parts welding fixture, characterized in that: It includes a profile positioning block and a rubidium magnet, which is arranged on the profile positioning block. The profile positioning block includes a base, a limit seat, and a support. The limit seat is arranged on the base, and the support is arranged at one end of the base. A placement space is formed between the support and the limit seat, and the placement space is used to place parts to be welded. The rubidium magnets are arranged in four groups, two groups of which are arranged on the placement space, and the other two groups of which are arranged on the support. The rubidium magnets are used to magnetically fix the parts to be welded.

2. The magnetic surface positioning structure for automobile parts welding fixture according to claim 1, characterized in that: The side walls of the four groups of rubidium magnets are all provided with a first limiting block, and the first limiting block is used to limit the side walls of the parts to be welded.

3. The magnetic surface positioning structure for automobile parts welding fixture according to claim 2, characterized in that: The support is provided with a second limiting block, which is used to limit the left end of the part to be welded, and the limiting seat is used to limit the right end of the part to be welded.

4. The magnetic surface positioning structure for automobile parts welding fixture according to claim 1, characterized in that: The limit seat includes a first limit seat and a second limit seat. The first limit seat is fixedly set on the base, and the second limit seat is set on the left side of the first limit seat and is connected to the first limit seat by a screw. The screw is rotated to adjust the distance between the first limit seat and the second limit seat, thereby adjusting the size of the placement space, so as to cope with parts to be welded of different sizes.

5. The magnetic profile positioning structure for automobile parts welding fixture according to claim 3, characterized in that: The first limiting block is fixedly welded to the support and the base, and the second limiting block is fixedly welded to the support.

6. The magnetic surface positioning structure for automobile parts welding fixture according to claim 5, characterized in that: The surfaces of the first limiting block and the second limiting block facing the parts to be welded are both provided with a protective layer.

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