Detection tool for detecting stamping single piece and buckling piece

By designing a test tool for detecting stamping single-piece and fastener, the problem of difficulty in effectively detecting the fastener status of U-shaped stamping in the prior art is solved, and efficient detection of stamping parts and subassembly parts is achieved, reducing the risk of rework and rework.

CN222635384UActive Publication Date: 2025-03-18TOWER AUTOMOTIVE (WUHU) CO LTD
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Patent Information

Application Number
CN202421211074.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-03-18
Estimated Expiration
2034-05-30

AI Technical Summary

Technical Problem

The prior art is difficult to effectively detect the fastening state of U-shaped stamping parts, especially in stamping parts with high matching requirements and extreme tolerances of flange, resulting in poor incoming parts flowing into the production site, increasing labor and equipment costs.

Method used

A test tool for detecting stamping single-piece and fastener is designed, including a base plate, a detection mechanism and a press-holding mechanism. By setting a jack and a press-holding mechanism on the detection surface, combining B reference pin sleeve and C reference pin sleeve, the detection of the stamping parts and subassembly parts is realized.

Benefits of technology

Through the use of this inspection tool, the matching gap of stamping parts can be effectively detected, ensuring that the fastening state meets the requirements, reducing the risks of rework and rework, improving detection efficiency and reducing costs.

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Abstract

The utility model discloses a testing fixture for detecting a stamping single piece and a fastener, which relates to the technical field of part testing fixtures, and comprises a bottom plate, a detection mechanism and a hold-down mechanism, the bottom plate is provided with a detection profile for placing parts, the detection profile is provided with a plurality of jacks, the bottom plate is provided with the hold-down mechanism, and the detection mechanism is detachably connected in the jacks. According to the utility model, in the detection process, the lower plate is firstly buckled on the detection molded surface, the B reference pin and the C reference pin special for the buckling piece are respectively inserted into the B reference pin sleeve and the C reference pin sleeve, and then the upper plate is buckled, so that the upper plate is buckled in place in the height direction, the matching gap is detected by using a gap ruler, the matching is not qualified, and the matching gap is greater than 1mm; by replacing the positioning pin, the stamping part and the sub-assembly part can be detected at the same time through one set of detection tool, the detection efficiency is improved, the process instability is greatly reduced, and the rework and repair risks are greatly reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of parts inspection tools, in particular to an inspection tool for inspecting stamped single parts and fastening parts. Background Art

[0002] In order to solve the problems of snap-fit ​​detection and matching stability of U-shaped stamping parts, with the vigorous development of the automobile industry, enterprises have higher and higher requirements for product production efficiency. It has become the focus of attention to simulate and detect the welding assembly status in advance, improve the stability of stamping single parts, reduce the failure rate of equipment and tooling, and improve efficiency. A certain U-shaped opening inspection fixture for stamping single parts. In product inspection, because the flange gap of a single part is allowed to fluctuate within the tolerance range, if the stamping parts that match and snap together are all within the limit tolerance, the single part inspection is qualified at this time, but the snap-fit ​​gap is large, or it cannot be snapped together, so the inspection result has limitations. For stamping parts with high matching requirements and flange limit tolerances, the snap-fit ​​status of the parts is difficult to confirm, and defective parts flow into the production site, which is easy to cause waste of labor and equipment costs. Utility Model Content

[0003] The purpose of the utility model is to provide a checking fixture for checking stamping single parts and fastening parts, so as to overcome the above-mentioned defects in the prior art.

[0004] A test fixture for testing stamped single parts and fastening parts, comprising a base plate, a testing mechanism and a holding mechanism, wherein the base plate is provided with a testing surface for placing parts, the testing surface is provided with a plurality of sockets, the base plate is provided with a holding mechanism for pressing a lower plate on the side of each socket, the testing mechanism is detachably connected to the socket and is used to test the lower plate and the upper plate.

[0005] Preferably, the pressing mechanism comprises a toggle clamp and a Y-shaped pressing plate, the toggle clamp is arranged on a fixed seat on the bottom plate, and the Y-shaped pressing plate is arranged at the pressing end of the toggle clamp.

[0006] Preferably, the detection mechanism includes a B reference pin sleeve, a C reference pin sleeve, a B reference pin and a C reference pin, the B reference pin sleeve and the C reference pin sleeve are respectively arranged in the insertion hole, the B reference pin is inserted into the B reference pin sleeve through the B insertion rod at its lower end, and the C reference pin is inserted into the C reference pin sleeve through the C insertion rod at its lower end.

[0007] Preferably, the plurality of rubber ferrules on the bottom plate are also respectively clamped with a gap go / no-go gauge, an edge line detection go gauge and an edge line detection no-go gauge.

[0008] Preferably, handles are respectively provided on both sides of the bottom plate.

[0009] The utility model has the following advantages:

[0010] When the utility model is in use, during the detection process, the lower plate is first buckled into the detection surface, the B reference pin and C reference pin dedicated to the fastening part are respectively inserted into the B reference pin sleeve and the C reference pin sleeve, and then the upper plate is buckled into place so that it is buckled into place in the height direction, and a gap gauge is used to detect the matching gap. If it cannot be matched or the matching gap is greater than 1mm, it is unqualified. By replacing the locating pins, a set of inspection tools can be used to simultaneously detect stamping parts and sub-assembly parts, which improves the detection efficiency, greatly reduces the process instability, and greatly reduces the risk of rework and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of traditional single-piece inspection.

[0012] Figure 2 It is a structural schematic diagram of the utility model when the lower plate is installed.

[0013] Figure 3 It is a schematic diagram of the structure of the utility model when the fastening piece is installed.

[0014] Figure 4 It is a structural schematic diagram of the detection surface of the utility model.

[0015] Figure 5 It is a structural schematic diagram of the B reference pin of the utility model.

[0016] Figure 6 It is a structural schematic diagram of the C reference pin of the utility model.

[0017] Wherein: 1. Bottom plate; 11. Rubber ferrule; 12. Gap go / no-go gauge; 13. Edge detection go / no-go gauge; 14. Edge detection go / no-go gauge; 15. Handle; 2. Detection profile; 21. Socket; 3. Pressing mechanism; 31. Fixed seat; 32. Elbow clamp; 33. Y-type pressure plate; 4. Detection mechanism; 41. B reference pin sleeve; 42. C reference pin sleeve; 431. Lower B reference pin; 432. Lower B plug rod; 433. Lower C reference pin; 434. Lower C plug rod; 441. Upper B reference pin; 442. Upper B plug rod; 443. Upper C reference pin; 444. Upper C plug rod; 5. Lower plate; 6. Upper plate. DETAILED DESCRIPTION

[0018] The specific implementation methods of the utility model are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model.

[0019] like Figure 1-6As shown, the utility model provides a check fixture for checking stamped single pieces and fastening parts, comprising a bottom plate 1, a detection mechanism 4 and a holding mechanism 3, handles 15 are respectively provided on both sides of the bottom plate 1, and the handles 15 are provided to facilitate the transfer of the check fixture, a detection profile 2 for placing parts is provided on the bottom plate 1, a plurality of sockets 21 are provided on the detection profile 2, and a holding mechanism 3 for pressing the lower plate 5 is provided on the side of each socket 21 of the bottom plate 1, and the detection mechanism 4 is detachably connected to the socket 21 and is used to check the lower plate 5 and the upper plate 6;

[0020] The plurality of rubber ferrules 11 on the bottom plate 1 are also respectively clamped with a gap go / no-go gauge 12, an edge detection go / no-go gauge 13 and an edge detection no-go gauge 14, and the go / no-go gauge is used to detect the gap between the detection surface and the detection profile of the part to be detected;

[0021] It should be noted that the holding mechanism 3 includes a toggle clamp 32 and a Y-shaped pressing plate 33. The toggle clamp 32 is arranged on the fixing seat 31 on the bottom plate 1. The Y-shaped pressing plate 33 is arranged at the pressing end of the toggle clamp 32. The lower plate 5 placed on the detection profile 2 is pressed and fixed by the Y-shaped pressing plate 33 on the toggle clamp 32.

[0022] In addition, the detection mechanism 4 includes a B reference pin sleeve 41, a C reference pin sleeve 42, a B reference pin 43 and a C reference pin 44. The B reference pin sleeve 41 and the C reference pin sleeve 42 are respectively arranged in the insertion hole 21, and the B reference pin 43 is inserted into the B reference pin sleeve 41 through the B insertion rod 431 at its lower end, and the C reference pin 44 is inserted into the C reference pin sleeve 42 through the C insertion rod 441 at its lower end.

[0023] During the inspection process, the lower plate 5 is first buckled into the inspection surface 2, and the B reference pin 43 and C reference pin 44 dedicated to the fastening parts are respectively inserted into the B reference pin sleeve 41 and the C reference pin sleeve 42, and then the upper plate 6 is buckled in so that it is buckled into place in the height direction. The matching gap is detected using a gap gauge. Failure to match or a matching gap greater than 1mm is considered unqualified. By replacing the locating pins, a set of inspection fixtures can be used to simultaneously inspect stamping parts and sub-assembly parts, which improves inspection efficiency, greatly reduces process instability, and greatly reduces the risk of rework and repair.

[0024] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A test fixture for testing stamped parts and fastening parts, characterized by: The invention comprises a bottom plate (1), a detection mechanism (4) and a holding mechanism (3); the bottom plate (1) is provided with a detection profile (2) for placing parts; the detection profile (2) is provided with a plurality of insertion holes (21); the bottom plate (1) is provided with a holding mechanism (3) for pressing a lower plate (5) on the side of each insertion hole (21); the detection mechanism (4) is detachably connected to the insertion hole (21) and is used to detect the lower plate (5) and the upper plate (6).

2. A test fixture for testing stamped parts and fastening parts according to claim 1, characterized in that: The holding mechanism (3) comprises a toggle clamp (32) and a Y-shaped pressing plate (33); the toggle clamp (32) is arranged on a fixed seat (31) on the bottom plate (1); and the Y-shaped pressing plate (33) is arranged at the pressing end of the toggle clamp (32).

3. A checking fixture for checking stamped parts and fastening parts according to claim 1, characterized in that: The detection mechanism (4) comprises a B reference pin sleeve (41), a C reference pin sleeve (42), a B reference pin (43) and a C reference pin (44); the B reference pin sleeve (41) and the C reference pin sleeve (42) are respectively arranged in the insertion hole (21); the B reference pin (43) is inserted into the B reference pin sleeve (41) through a B insertion rod (431) at its lower end; and the C reference pin (44) is inserted into the C reference pin sleeve (42) through a C insertion rod (441) at its lower end.

4. A checking fixture for checking stamped parts and fastening parts according to claim 3, characterized in that: The plurality of rubber ferrules (11) on the bottom plate (1) are also respectively clamped with a gap go / no-go gauge (12), an edge line detection go gauge (13) and an edge line detection no-go gauge (14).

5. A test fixture for testing stamped parts and fastening parts according to claim 1, characterized in that: Handles (15) are respectively provided on both sides of the bottom plate (1).