Ejection force detection tool for automobile stamping projection welding piece
By designing a vehicle stamping projection welded parts with compressed blocks, longitudinal beam tracks and chucks for ejection force detection tooling, the stamping projection welded parts lack matching compressed blocks and uniform tightening in ejection force experiments. The yield stress problems caused by the compression block applied by the solid bolts achieve the accuracy of the test results for welding joint strength.
Patent Information
- Application Number
- CN202421120413.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the ejection force experiment of stamped projection welds, there is a lack of matching compressed chunks and compressed chunks that evenly apply force to the fastening bolts, resulting in deformation of the threaded plate and causing yield stress, interfering with the test results of welding joint strength.
A kind of overload force detection tool for stamping convex welded parts is designed. The workbench is equipped with a compressed block with grooves, a longitudinal beam track and a chuck that can be moved up and down. Bolts and nuts are provided below the chuck. The clamping block and fastening bolt design avoids yield stress caused by deformation of the threaded plate.
This testing tool can match most stamped convex welding double-head threaded plate parts for ejection force experiments, avoiding the interference of the yield stress caused by deformation of the threaded plate on the welding joint strength detection results, and ensuring the accuracy of the detection results.
Smart Images
Figure CN222439011U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses an ejection force detection tool for a stamping projection weldment, and relates to the technical field of detection tooling. Background Art
[0002] During the ejection force test of stamped projection welds, a complete set of testing fixtures is required to fix them to complete the test. Ordinary projection weld nuts, screws, and single-head threaded plates can generally be fixed with universal testing fixtures to complete the ejection force test; because projection welded double-head threaded plates lack matching pressure blocks (tracks for the threaded plates to gradually fall off from the weld points) and also lack pressure blocks that can evenly apply force to the fastening bolts, this set of ejection force testing fixtures for stamped projection welds is required to complete the ejection force test of projection welded double-head threaded plates. The clamping block plays a very important role in this set of testing fixtures. During the experiment, it can avoid the interference of certain yield stress caused by the deformation of the threaded plate on the weld strength test results. Utility Model Content
[0003] The utility model is realized through the following technical scheme: a tool for detecting ejection force of automobile stamping convex weldment, a pressure block with a groove is arranged on a workbench, longitudinal beam tracks are arranged on both sides of the workbench, a chuck which can move up and down is arranged between the longitudinal beam tracks, and a bolt and a corresponding nut are arranged under the chuck.
[0004] The above-mentioned ejection force detection tooling for automobile stamping projection welding parts has a pressing block under the chuck, and a bolt and a corresponding nut under the pressing block.
[0005] The above-mentioned ejection force detection tool for automobile stamping projection welding parts is provided with a clamping block, and the bolt passes through the clamping block and is connected with a nut.
[0006] In the ejection force detection tool for automobile stamping projection weldment, the size of the groove on the pressure block is larger than the size of the threaded plate on the stamping part body.
[0007] The above-mentioned ejection force detection tool for automobile stamping projection welding parts has a bottom plate and a pad between the workbench and the pressure block.
[0008] The above-mentioned ejection force detection tool for automobile stamping projection welding parts has a left handle and a right handle on both sides of the pad.
[0009] Beneficial effects of the utility model
[0010] This set of testing tooling can be matched with most stamping projection welded double-head threaded plate parts for ejection force testing. During the experiment, it can avoid the interference of certain yield stress caused by the deformation of the threaded plate on the weld strength test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the main exploded structure of the ejector force detection tooling for automobile stamping projection weldments.
[0012] Figure 2 It is a structural schematic diagram of the threaded plate and the welding point.
[0013] In the figure: 1, bottom plate, 2, pad, 3, left handle, 4, right handle, 5, pressure block, 6, fastening nut I, 7, fastening nut II, 8, clamping block, 9, fastening bolt I, 10, fastening bolt II, 11, pressure block, 12, left longitudinal beam rail, 13, right longitudinal beam rail, 14, chuck, 15, workbench, 16, stamping part body, 17, threaded plate on stamping part, 18, convex welding point. DETAILED DESCRIPTION
[0014] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
[0015] A tool for detecting ejection force of automobile stamping projection weldment, a bottom plate 1 and a backing plate 2, and a pressure block 5 with a groove are arranged on a workbench 15 in sequence, a left longitudinal beam track 12 and a right longitudinal beam track 13 are arranged on both sides of the workbench 15, a chuck 14 movable up and down is arranged between the left longitudinal beam track 12 and the right longitudinal beam track 13, a pressure block 11 is arranged below the chuck 14, and a fastening bolt Ⅰ9, a fastening bolt Ⅱ10, and corresponding fastening nuts Ⅰ6 and fastening nuts Ⅱ7 are arranged below the pressure block 11, the fastening bolt Ⅰ9 and the fastening bolt Ⅱ10 pass through the clamping block 8 and are connected with the fastening nuts Ⅰ6 and Ⅱ7,
[0016] The size of the groove on the pressure block 5 is larger than the size of the threaded plate 17 on the stamping part body 16 .
[0017] A left handle 3 and a right handle 4 are provided on both sides of the pad 2 .
[0018] Example 1
[0019] A tool for testing the ejection force of automobile stamping projection welding parts, wherein a bottom plate 1 is connected to a workbench 15, a pad 2 is arranged on the bottom plate 1, a left handle 3 and a right handle 4 are installed on both sides of the pad 2, a pressure block 5 is arranged on the pad 2, the pressure block 5 is used to support the stamping part body 16 during the ejection force test, a groove is arranged in the middle of the pressure block 5, and the threaded plate 17 and the stamping part body 16 gradually fall off and fall into the middle groove of the pressure block 5; the left handle 3 and the right handle 4 are used to facilitate the taking and moving of the pad 2; the fastening nut Ⅰ6 and the fastening nut Ⅱ7 are connected with the fastening bolt Ⅰ9 and the fastening bolt Ⅱ10, and are used to clamp the clamping block 8 and The threaded plate 17 is fixed; the clamping block 8 is used to prevent the threaded plate 17 from deforming and generating yield stress during the ejection force test, which causes distortion of the measurement curve and the measurement value; the fastening bolts I9 and the fastening bolts II10 are screwed into the threads of the threaded plate 17, and connected with the fastening nuts I6 and the fastening nuts II7, which are used to fix the clamping block 8 and the threaded plate 17; the pressing block 11 is connected to the chuck 14, and is used to apply force to the fastening bolts I9 and the fastening bolts II10 during the experiment, and transmit it to the threaded plate 17 through the threads, so that the threaded plate 17 falls off from the welding point 18 connected to the stamping part 16 to complete the ejection force test.
[0020] The workflow of the utility model is:
[0021] Before the experiment begins, the base 1, the pad 2 and the workbench 15 are connected and fixed; then the fastening bolts Ⅰ9 and Ⅱ10 are screwed into the threads of the threaded plate 17 until they reach the top of the threads, and then the fastening bolts Ⅰ9, Ⅱ10 and the boss of the threaded plate 17 are passed through the clamping block 8, and the other end of the bolt is locked with the fastening nut Ⅰ6 and the fastening nut Ⅱ7 to complete the preparation of the stamping part 16 before the ejection force experiment; the fastening bolts Ⅰ9, Ⅱ10, the threaded plate 17, the stamping part 16, and the fastening nut Ⅰ 6. Put the tightening nut II 7 and the clamping block 8 into the pressure block 5; finally, the pressure block 11 is connected to the chuck 14 through the limit screw; during the experiment, the chuck 14 moves downward along the left longitudinal beam track 12 and the right longitudinal beam track 13 at a uniform speed under the control of the motor, and applies a downward force to the fastening bolts I 9 and II 10 through the pressure block 11, which is transmitted to the threaded plate 17 through the thread, so that the threaded plate 17 falls off from the convex welding point 18 connected to the stamping part 16. When the chuck 14 senses the attenuation of the force value / the threaded plate 17 falls into the groove of the pressure block 5, the ejection force experiment is completed.
[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tool for detecting ejection force of automobile stamping projection weldment, characterized in that: A pressure block (5) with a groove is provided on the workbench (15), longitudinal beam rails are provided on both sides of the workbench (15), a clamp (14) movable up and down is provided between the longitudinal beam rails, a pressure block (11) is provided below the clamp (14), a bolt and a corresponding nut are provided below the pressure block (11); a clamping block (8) is provided, and the bolt passes through the clamping block (8) and is connected to the nut.
2. The ejection force detection tool for automobile stamping projection welding parts according to claim 1, characterized in that: The size of the groove on the pressure block (5) is larger than the size of the threaded plate (17) on the stamping part body (16).
3. The ejection force detection tool for automobile stamping projection welding parts according to claim 1, characterized in that: A bottom plate (1) and a pad (2) are provided between the workbench (15) and the pressure block (5).
4. The ejection force detection tool for automobile stamping projection welding parts according to claim 3, characterized in that: A left handle (3) and a right handle (4) are provided on both sides of the pad (2).