Workpiece deformation test tool
By designing a workpiece deformation test fixture and utilizing a combination of a support and a dial indicator, continuous loading and stable measurement of the rubber shock-absorbing pad were achieved, solving the problem of large test errors and improving the accuracy and reliability of the test results.
Patent Information
- Application Number
- CN202520048024.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing technologies for testing the permanent deformation performance of rubber damping pads suffer from large experimental errors and the inability to achieve continuous loading, resulting in inaccurate test results.
Design a workpiece deformation test fixture, which adopts a combination structure of a support and a dial indicator. The dial indicator is set under the workpiece, and the support is used to support and protect the dial indicator. The loading head applies a continuous load to the workpiece, the fixing pin prevents the workpiece from shifting, and the clamping plate and fixing plate are used to fix the workpiece to ensure the stability and accuracy of the test process.
This method achieves accurate and continuous loading in workpiece deformation tests, reduces test errors, and improves the accuracy and reliability of test results.
Smart Images
Figure CN223636795U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test frock technical field, especially a kind of deformation test frock of workpiece. BACKGROUND
[0002] In the field of aerospace, the performance requirement of shock pad is strict, and for rubber shock pad, permanent deformation performance test is an indispensable link, which is an important method for the reliability of shock pad.
[0003] In the past, when permanent deformation performance test is carried out on rubber shock pad, the lower end of the rubber shock pad is directly pulled by weight placed on the test table, so that the rubber shock pad deforms, and then the deformation amount is observed by the micrometer fixed above the rubber shock pad. At the beginning, the driving rod of the micrometer is abutted against the upper end of the rubber shock pad. After the deformation of the rubber shock pad, the driving rod of the micrometer maintains the abutting posture, so that the reading of the micrometer changes. The weight loading mode causes the deformation amount of the rubber shock pad to change in a discontinuous manner, which increases the test error. SUMMARY
[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a deformation test frock of workpiece, which increases the accuracy of test results.
[0005] According to the utility model embodiment, a workpiece comprises a support, a micrometer, the support is provided with a mounting space, and the upper end of the support is used for loading a workpiece; the micrometer is arranged in the mounting space, and the micrometer is arranged below the workpiece, and the driving rod of the micrometer abuts against the lower end of the workpiece; and the upper end of the workpiece is used for being pressed by a loading head, so that the driving rod of the micrometer is pressed after the lower end of the workpiece deforms.
[0006] According to the utility model embodiment, a workpiece has at least the following beneficial effects: the support is used for supporting the components on the micrometer, the workpiece and other frocks, the setting of the loading head can exert greater load and faster rate of load on the workpiece, and the load can be accurately and continuously applied; the micrometer is fixed below the workpiece, the micrometer can be protected by the support, so that errors caused by interference of the micrometer are avoided; during the test, the micrometer is arranged below the workpiece, and the micrometer can be stabilized by its own gravity without being fixed; the micrometer can accurately measure the deformation amount of the shock pad during the load application of the loading head, so that the test results are obtained.
[0007] According to some embodiments of the utility model, the support and the clamping plate are provided with a loading space, the loading space is used for loading the fixed sheet, and the setting of the loading space makes the fixed sheet more fit between the support and the clamping plate.
[0008] According to some embodiments of the utility model, the support and the clamping plate are provided with a loading space, the loading space is used for loading the fixed sheet, and the setting of the loading space makes the fixed sheet more fit between the support and the clamping plate.
[0009] According to some embodiments of the utility model, further include fixed pin, the fixed pin is from top to bottom in proper order and is inserted with the clamping plate, the fixed sheet and the support, the fixed pin is used for preventing the workpiece from displacement in the test process, thereby influence test result.
[0010] According to some embodiments of the utility model, the fixed pin is provided with several, the fixed pin is provided with at least two, and one fixed pin cannot fix the workpiece.
[0011] According to some embodiments of the utility model, several fixed pins are distributed around the circumference of the workpiece.
[0012] According to some embodiments of the utility model, several fixed pins are evenly distributed around the circumference of the workpiece, and the even distribution of the fixed pins around the circumference of the workpiece can maximize the uniformity of the deformation of the workpiece, so that the test result is more accurate.
[0013] According to some embodiments of the utility model, the fixed pin is provided with four.
[0014] According to some embodiments of the utility model, the fixed sheet is made of alloy steel, and the alloy steel can significantly improve the material strength, corrosion resistance and toughness, and prolong the service life of the workpiece.
[0015] According to some embodiments of the utility model, the loading head is provided as a semispherical shape, and the semispherical shape can increase the stability of the contact surface when the loading head is loaded, and reduce the influence of irrelevant variables on the test.
[0016] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further explained in combination with the drawings and embodiments, wherein:
[0018] Figure 1 Structure diagram of the embodiment of the present application is shown in the figure.
[0019] Figure 2 For Figure 1 The top view.
[0020] Support 100, mounting space 110;
[0021] Workpiece 200, fixed sheet 210;
[0022] Clamp plate 300, loading space 310, third fixing hole 320;
[0023] Loading head 400;
[0024] Dial gauge 500;
[0025] Fixed pin 600. Specific implementation
[0026] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship of the upper, lower, front, rear, left, right and the like, is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the present application and simplifying the description, and is not indicative or implied that the device or element indicated must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation of the present application.
[0027] In the description of the present application, if the first, second is described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated or the sequence of the technical features indicated.
[0028] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.
[0029] Refer to Figure 1 With Figure 2The utility model discloses a kind of deformation test tool of workpiece, comprising: support 100, dial gauge 500, support is provided with mounting space 110, the upper end of support 100 is used to load workpiece 200;Dial gauge 500 is set in mounting space 110, dial gauge 500 is set below workpiece 200, the driving rod of dial gauge 500 abuts the lower end of workpiece 200;The upper end of workpiece 200 is used to be loaded head 400 pressure, after the lower end of workpiece 200 is deformed, the driving rod of dial gauge 500 is pressed, dial gauge 500 is conventional equipment, it is explained that, workpiece 200 includes rubber shock pad, can also be other workpiece 200 needing to be deformed detection, for example, stainless steel disc or other rubber disc type product.
[0030] With reference to Figure 2 The outer edge of the clamping plate 300 is rectangular, the workpiece 200 is arranged at the center of the clamping plate 300, the fixing sheet 210 is arranged below the clamping plate 300, the first fixing hole, the second fixing hole and the third fixing hole 320 are coaxially arranged, and the first fixing hole and the second fixing hole are shielded by the third fixing hole 320.
[0031] The support 100 is used to support the dial gauge 500, the workpiece 200 and other components on the tool, and the loading head 400 can exert greater load and faster rate of load on the workpiece 200. The dial gauge 500 is fixed below the workpiece 200, and the dial gauge 500 can be protected by the support 100 to avoid errors caused by interference. During the test, the dial gauge 500 is arranged below the workpiece 200, and the dial gauge 500 can be stabilized by its own gravity without being fixed. The dial gauge 500 can accurately measure the deformation of the shock pad during the loading process of the loading head 400, so as to obtain the test results.
[0032] The previous pressure applying device is a weight loading device, and the weight pressure is changed in a breakpoint mode. The breakpoint mode means that the tension on the rubber shock pad is discontinuous when the weight is loaded. For example, one weight provides a 5N force, two weights provide a 10N force, and a tension greater than 5N and less than 10N cannot be provided.
[0033] In some embodiments, the clamping plate 300 is arranged on the support 100, and the clamping plate 300 is configured to fix the workpiece 200 to the upper end of the support 100. The workpiece 200 includes a fixing sheet 210, which is arranged between the support 100 and the clamping plate 300. The fixing sheet 210 is used to fix the workpiece 200 to the support 100 and the clamping plate 300. The fixing sheet 210 is generally arranged at the outer edge of the workpiece 200, and the outer edge of the fixing sheet 210 is generally rectangular or circular.
[0034] It can be understood that the loading space 310 is arranged between the bracket 100 and the clamping plate 300, and the loading space 310 is used for loading the fixing sheet 210. The loading space 310 is arranged to make the fixing sheet 210 more fit between the bracket 100 and the clamping plate 300. The loading space 310 is defined by the clamping plate 300 and the bracket 100. When the size of the fixing sheet 210 changes, the clamping plate 300 should be replaced, so as to define a loading space 310 of different size to load the fixing sheet 210 of different size.
[0035] In some embodiments, the fixing pin 600 is further included, the fixing pin 600 is sequentially threaded from top to bottom through the clamping plate 300, the fixing sheet 210 and the bracket 100, and the fixing pin 600 is used for preventing the workpiece 200 from moving during the test, thereby affecting the test result. In other embodiments, the clamping plate 300, the fixing sheet 210 and the bracket 100 can also be connected by bolts. The clamping plate 300, the fixing sheet 210 and the bracket 100 can also be provided with threaded holes, and the clamping plate 300, the fixing sheet 210 and the bracket 100 can be connected by a screw rod or a screw. It is conceivable that the bracket 100 is provided with four first fixing holes, the fixing sheet 210 is provided with four second fixing holes, and the clamping plate 300 is provided with four third fixing holes 320. The first fixing hole, the second fixing hole and the third fixing hole 320 correspond one by one. The first fixing hole, the second fixing hole and the third fixing hole 320 are connected by the fixing pin 600. The fixing pin 600 fixes the fixing sheet 210 in the loading space 310. The four second fixing holes are located at the four feet of the fixing pin 600, so as to ensure that the workpiece 200 does not move when the load is applied. The first fixing hole, the second fixing hole and the third fixing hole 320 are coaxially arranged, and the first fixing hole, the second fixing hole and the third fixing hole 320 are the same size.
[0036] It is conceivable that the fixing pin 600 is provided with several fixing pins 600, and the fixing pin 600 is provided with at least two fixing pins 600. One fixing pin 600 cannot fix the workpiece 200.
[0037] In some embodiments, the several fixing pins 600 are distributed around the circumference of the workpiece 200.
[0038] In some embodiments, the several fixing pins 600 are uniformly distributed around the circumference of the workpiece 200. The uniform distribution of the fixing pins 600 around the circumference of the workpiece 200 can maximize the uniformity of the deformation of the workpiece 200, so as to make the test result more accurate.
[0039] In some embodiments, the fixing pin 600 is provided with four fixing pins 600.
[0040] It should be understood that the fixed sheet 210 is provided as alloy steel, which can significantly improve the material strength, corrosion resistance and toughness, and prolong the service life of the workpiece 200.
[0041] It should be understood that the loading head 400 is provided as a semi-spherical shape, which can increase the stability of the contact surface during loading and reduce the influence of irrelevant variables on the test.
[0042] The technical features of the above embodiments can be combined in any way, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.
[0043] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A deformation test jig for a workpiece, characterized by comprising: The utility model relates to a workpiece loading device, including: A support (100) is provided with a mounting space (110), the upper end of the support (100) is used for loading a workpiece (200); A dial gauge (500) is arranged in the mounting space (110), the dial gauge (500) is arranged below the workpiece (200), and the driving rod of the dial gauge (500) abuts against the lower end of the workpiece (200); The upper end of the workpiece (200) is used for being pressed by a loading head (400), so that the lower end of the workpiece (200) is deformed and presses the driving rod of the dial gauge (500).
2. The deformation test jig for a work according to claim 1, characterized by: Further comprising a clamping plate (300), the clamping plate (300) is arranged on the support (100), the clamping plate (300) is configured to fix the workpiece (200) on the upper end of the support (100), the workpiece (200) includes a fixing sheet (210), the fixing sheet (210) is arranged between the support (100) and the clamping plate (300), and the clamping plate (300) is used for fixing the fixing sheet (210).
3. The test tool for deforming a workpiece according to claim 2, wherein: The support (100) and the clamping plate (300) are provided with a loading space (310) between them, and the loading space (310) is used for loading the fixing sheet (210).
4. The workpiece deformation test fixture of claim 3, wherein: Further comprising a fixing pin (600), the fixing pin (600) is sequentially threaded through the clamping plate (300), the fixing sheet (210) and the support (100) from top to bottom.
5. The test tool of claim 4 wherein: The fixing pin (600) is provided with several.
6. The workpiece deformation test fixture of claim 5, wherein: Several fixing pins (600) are distributed around the circumference of the workpiece (200).
7. The workpiece deformation test fixture of claim 5, wherein: Several fixing pins (600) are evenly distributed around the circumference of the workpiece (200).
8. The distortion test tool for a workpiece according to claim 6 or 7, characterized by: The fixing pin (600) is provided with four.
9. The deformation test tooling for a workpiece of claim 8, wherein: The fixing sheet (210) is made of alloy steel.
10. The deformation test tool for a workpiece according to Claim 1, characterized by: The loading head (400) is provided with a semispherical shape.