CN215492812U - Pressing-down type assembling tool for brake shoe welding pull-out force test - Google Patents
Pressing-down type assembling tool for brake shoe welding pull-out force test Download PDFInfo
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- CN215492812U CN215492812U CN202121791409.1U CN202121791409U CN215492812U CN 215492812 U CN215492812 U CN 215492812U CN 202121791409 U CN202121791409 U CN 202121791409U CN 215492812 U CN215492812 U CN 215492812U
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- brake shoe
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- out force
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Abstract
The utility model relates to a downward pressing type assembling tool, in particular to a downward pressing type assembling tool for testing the welding pull-out force of a brake shoe. The brake shoe component is internally provided with a special-shaped pressing plate which is designed in a shape similar to the brake shoe component, and the brake shoe component is fixed with the lower chuck through the special-shaped pressing plate. The success rate and the stability of the pull-off force test are improved.
Description
Technical Field
The utility model relates to a downward pressing type assembling tool, in particular to a downward pressing type assembling tool for testing the welding pull-out force of a brake shoe.
Background
The condition of test failure or serious fluctuation of test data is caused by wire rope slip hook caused by part deformation in the traditional tensile test.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a method for testing the brake shoe main plate and the reinforcing plate by using the pull-out force, which solves the problems that the data is unstable, the welding strength cannot be objectively evaluated and the pull-out force testing success rate is low in the test process of the brake shoe main plate and the reinforcing plate welding pull-out force. The down-pressing type assembling tool for the brake shoe welding pull-out force test.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a pressing-down type fixture for testing the welding pull-out force of a brake shoe comprises a lower chuck and an upper chuck, wherein a brake shoe part is fixed on the upper portion of the lower chuck, the brake shoe part is connected with the upper chuck through a steel wire rope, a special-shaped pressing plate which is in a shape similar to that of the brake shoe part is arranged in the brake shoe part, and the brake shoe part is fixed with the lower chuck through the special-shaped pressing plate.
Preferably, a mandrel sleeved with the steel wire rope is arranged in the upper chuck, and the cross section of the steel wire rope is triangular.
Preferably, the bottom of the special-shaped pressure plate is provided with a reinforcing plate fixed with the brake shoe part, the reinforcing plate and the upper part of the lower chuck are distributed in a horizontal shape, and the reinforcing plate, the lower chuck and the special-shaped pressure plate are fixed through bolts.
The working principle and the requirements are as follows:
in the test, the steel wire rope is required to be dragged on a test part of the brake shoe, and the steel wire rope can be stabilized in a certain area of a part and cannot be displaced;
in the process of tension test and pressurization, the part needs to be stably fixed on the clamp and cannot jump or turn over.
However, in the actual testing process, the steel wire rope and the iron piece are directly pulled to be tested, and the steel piece is deformed due to stress, the steel wire rope of the pulled part is subjected to sliding displacement, so that the torque fluctuates, the test data fluctuates seriously, and the welding strength cannot be evaluated objectively; in addition, the steel wire rope has overlarge displacement in the pressurizing process, so that the product is turned over, and the test cannot be continued. So a fixture must be made to ensure that the testing process meets the specifications.
Depending on the specifications of the experiment, and the problems that occurred during the actual testing. By utilizing the appearance characteristics of M-shaped bending of the product and the characteristics of universal tensile test equipment, a set of test fixture which can ensure the success of product test and can evaluate the test stably, objectively and accurately is invented.
The tool is connected with a universal tester through 1) an upper chuck and 7) a lower chuck. 5) the special-shaped pressing plate penetrates through 6) the part and is fixed on 7) the lower chuck through 4) the fastening bolt, the part is confirmed to be pressed tightly, and the shaking phenomenon is avoided. And (3) one end of the steel wire rope penetrates through the 6) part and is fixed at two ends of the space with the M-shaped characteristic, the other end of the steel wire rope is fixed on the 2) core rod, and the 2) core rod is fixed on the 1) upper chuck.
5) The molded surface of the special-shaped pressing plate needs to be designed by placing a 0.2-0.4mm gap according to a space image formed by combining the 9) main plate and the 8) reinforcing plate, so that a part is completely clamped and the contact surface is large enough during testing.
During operation, universal tester pressurizes and opens the stroke, and after wire rope tightened, the pulling part, the mainboard of brake shoe receive the ascending pulling force of wire rope, and the reinforcing plate of brake shoe is tightly fixed on lower chuck through special-shaped clamp plate by the fastening bolt, and mainboard and reinforcing plate are separated after pressurizing to certain numerical value, and the experiment is ended, and the peak data of recording universal tester is for drawing the power data of taking off.
The utility model relates to a downward pressing type assembling tool for testing the welding pull-out force of a brake shoe, which improves the success rate and stability of the pull-out force test.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of a portion of the structure of the brake shoe components of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The upper chuck 2 is internally provided with a core rod 6 which is sleeved with the steel wire rope 4, and the cross section of the steel wire rope 4 is triangular.
The bottom of the special-shaped pressing plate 5 is provided with a reinforcing plate 7 fixed with the brake shoe part 3, the reinforcing plate 7 and the upper part of the lower chuck 1 are distributed in a horizontal shape, and the reinforcing plate 7, the lower chuck 1 and the special-shaped pressing plate 5 are fixed through bolts 8.
Claims (3)
1. The utility model provides a brake shoe welding pulls down formula harness of taking off power test which characterized in that: the brake shoe component comprises a lower chuck (1) and an upper chuck (2), wherein a brake shoe part (3) is fixed on the upper portion of the lower chuck (1), the brake shoe part (3) is connected with the upper chuck (2) through a steel wire rope (4), a special-shaped pressing plate (5) which is in a shape similar to the brake shoe part (3) is arranged in the brake shoe part (3), and the brake shoe part (3) is fixed with the lower chuck (1) through the special-shaped pressing plate (5).
2. The pressing-down type tool for the brake shoe welding pull-out force test according to claim 1, is characterized in that: the upper chuck (2) is internally provided with a core rod (6) which is sleeved with the steel wire rope (4), and the cross section of the steel wire rope (4) is triangular.
3. The pressing-down type tool for the brake shoe welding pull-out force test according to claim 1 or 2, wherein: the special-shaped pressing plate is characterized in that a reinforcing plate (7) fixed with the brake shoe part (3) is arranged at the bottom of the special-shaped pressing plate (5), the reinforcing plate (7) and the upper part of the lower chuck (1) are distributed in a horizontal shape, and the reinforcing plate (7), the lower chuck (1) and the special-shaped pressing plate (5) are fixed through bolts (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791409.1U CN215492812U (en) | 2021-08-03 | 2021-08-03 | Pressing-down type assembling tool for brake shoe welding pull-out force test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791409.1U CN215492812U (en) | 2021-08-03 | 2021-08-03 | Pressing-down type assembling tool for brake shoe welding pull-out force test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215492812U true CN215492812U (en) | 2022-01-11 |
Family
ID=79754793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121791409.1U Active CN215492812U (en) | 2021-08-03 | 2021-08-03 | Pressing-down type assembling tool for brake shoe welding pull-out force test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215492812U (en) |
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2021
- 2021-08-03 CN CN202121791409.1U patent/CN215492812U/en active Active
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