CN221280642U - Compression spring life test fixture - Google Patents

Compression spring life test fixture Download PDF

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Publication number
CN221280642U
CN221280642U CN202323075015.8U CN202323075015U CN221280642U CN 221280642 U CN221280642 U CN 221280642U CN 202323075015 U CN202323075015 U CN 202323075015U CN 221280642 U CN221280642 U CN 221280642U
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China
Prior art keywords
test
plate
spring
clamping
testing
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CN202323075015.8U
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Chinese (zh)
Inventor
杨众寅
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Suzhou Zhongyin Spring Manufacture Co ltd
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Suzhou Zhongyin Spring Manufacture Co ltd
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Abstract

The utility model relates to a service life testing jig for a compression spring, which comprises a force application device, a fixed bottom plate, a support and a testing pressing plate, wherein the support is vertically and fixedly connected to the fixed bottom plate, the testing pressing plate slides up and down along the length direction of the support, the testing spring is sleeved on the support, and the testing pressing plate continuously compresses the testing spring up and down along the length direction of the support, so that the service life testing of the spring is completed. The force application device regularly applies force to the test pressing plate, so that the test pressing plate regularly moves up and down on the support column, and the test spring is regularly compressed, restored and compressed again to circulate. The test fixture provided by the utility model has a simple structure, and the fixed bottom plate can be provided with a plurality of struts, so that a plurality of springs can be tested simultaneously, and the test efficiency is greatly improved.

Description

Compression spring life test fixture
Technical Field
The utility model belongs to the technical field of jigs, and particularly relates to a service life testing jig for a compression spring.
Background
The jig can be divided into three types, namely a process assembly jig, a project test jig and a circuit board test jig. The project test type jigs comprise a life test type jig, a package test type jig, an environment test type jig, an optical test type jig, a shielding test type jig, a sound insulation test type jig and the like.
Before the spring leaves the factory, the service life of the spring needs to be tested, and in the prior art, the service life testing device for the compression spring has a complex structure, for example, a spring service life testing clamp and a spring service life testing device are provided in a patent publication number CN202939018U in the prior art, the clamp comprises an upper pressing plate, a lower positioning plate and at least one movable pressing plate, the lower positioning plate is matched below the movable pressing plate, and the top surface of the lower positioning plate is provided with at least one positioning column or positioning groove for positioning the spring to be tested and vertically corresponding to the movable pressing plate; the movable pressing block can be installed on the upper pressing plate in a vertically adjustable height manner and is used for carrying out compression test on the spring to be tested. The spring life testing device comprises a driving mechanism and the spring life testing clamp; the driving mechanism is connected with the upper pressing plate of the spring life test clamp and is used for driving the upper pressing plate to realize up-down pressing action. The test fixture is complex in structure, is unfavorable for testing the service life of a large number of springs, and affects the test speed.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a service life testing jig for a compression spring.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a compression spring life test fixture, its characterized in that includes desktop, PMKD, pillar and test clamp plate, PMKD fixed connection is in on the desktop, pillar perpendicular fixed connection in on the PMKD, be provided with on the test clamp plate with the through-hole of pillar adaptation, the pillar passes through the through-hole on the test clamp plate, thereby make the test clamp plate with the pillar links together, the test clamp plate is followed the length direction of pillar reciprocates, thereby makes the test clamp plate with distance between the PMKD constantly changes.
In one embodiment of the application, the diameter of the through hole on the test platen is larger than the diameter of the post, so that when the test platen and the post are connected together, the test platen moves up and down along the length of the post, so that the distance between the test platen and the fixed base plate is always changing.
In one embodiment of the present application, a spring is placed between the test platen and the fixed base plate, and the test platen compresses the spring as the test platen moves up and down along the length of the post, thereby performing a life test of the spring.
In one embodiment of the application, the inner diameter of the spring is larger than the diameter of the support column, the spring is sleeved on the support column, and the test pressing plate continuously compresses the spring when moving up and down along the length direction of the support column, so that the service life test of the spring is completed.
In one embodiment of the present application, the table top further comprises a clamping plate, wherein the clamping plate fixedly clamps the fixing bottom plate, so that the fixing bottom plate is fixed on the table top.
In one embodiment of the application, the table top comprises a table top and a table top, wherein the table top is fixedly connected with the table top through the table top, and the table top is fixedly connected with the table top through the table top.
In one embodiment of the application, the clamping force application assembly comprises a gasket, a nut and a bolt, wherein connecting through holes are formed in the tabletop and the clamping plate, the bolt penetrates through the connecting through holes in the tabletop and the clamping plate one by one, the nut and the bolt are screwed together, so that the tabletop and the clamping plate are fixed together, the gasket and the bolt are sleeved together, and the gasket is positioned below the bolt and above the clamping plate.
In one embodiment of the application, at least two clamping plates are arranged on the left side and the right side of the fixed bottom plate respectively, so that the fixed bottom plate can be fixed on the tabletop more firmly.
In one embodiment of the present application, the test press plate further comprises a force application device, wherein the force application device regularly applies force to the test press plate, so that the test press plate compresses the spring downwards, and the service life test of the spring is completed.
In one embodiment of the present application, the table top further comprises an intermediate plate, wherein the intermediate plate is fixed on the table top, the fixing bottom plate is fixed on the intermediate plate, and the clamping plate fixedly clamps the intermediate plate and the table top, so that the fixing bottom plate is firmly fixed on the table top.
The beneficial effects of the application are as follows: the application provides a service life testing jig for a compression spring, which comprises a force application device, a fixed bottom plate, a support and a testing pressing plate, wherein the support is vertically and fixedly connected to the fixed bottom plate, the testing pressing plate slides up and down along the length direction of the support, the testing spring is sleeved on the support, and the testing pressing plate continuously compresses the testing spring up and down along the length direction of the support so as to finish the service life testing of the spring. The force application device regularly applies force to the test pressing plate, so that the test pressing plate regularly moves up and down on the support column, and the test spring is regularly compressed, restored and compressed again to circulate. The test fixture provided by the application has a simple structure, and the fixed bottom plate can be provided with a plurality of struts, so that a plurality of springs can be tested simultaneously, and the test efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a service life testing fixture for a compression spring according to the present utility model.
Fig. 2 is a schematic diagram of another structure of a service life testing fixture for a compression spring according to the present utility model.
Detailed Description
The application will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present application have not been shown or described in the specification in order to avoid obscuring the core portions of the present application, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operational steps involved in the embodiments may be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of describing certain embodiments and are not necessarily intended to imply a required composition and/or order.
The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.
In one embodiment of the present application, please refer to fig. 1-2, the present application provides a service life testing fixture for a compression spring, the fixture includes a table top 1, a fixed bottom plate 3, a support post 4 and a testing press plate 7, the fixed bottom plate 3 is fixedly connected to the table top 1, the support post 4 is vertically and fixedly connected to the fixed bottom plate 3, a through hole adapted to the support post 4 is provided on the testing press plate 7, the support post 4 passes through the through hole on the testing press plate 7, so that the testing press plate 7 and the support post 4 are connected together, and the testing press plate moves up and down along the length direction of the support post, so that the distance between the testing press plate and the fixed bottom plate is continuously changed.
In one embodiment of the present application, referring to fig. 1-2, the diameter of the through hole on the test platen 7 is larger than the diameter of the pillar 4, so that when the test platen 7 and the pillar 4 are connected together, the test platen 7 moves up and down along the length direction of the pillar 4, so that the distance between the test platen 7 and the fixed base plate 3 is always changed.
In one embodiment of the present application, referring to fig. 1-2, a spring 8 is disposed between the test platen 7 and the fixed base plate 3, and the test platen 7 compresses the spring 8 as the test platen 7 moves up and down along the length direction of the support post 4, so as to perform a life test on the spring 8.
In one embodiment of the present application, referring to fig. 1-2, the inner diameter of the spring 8 is larger than the diameter of the pillar 4, the spring 8 is sleeved on the pillar 4, and the test platen 7 continuously compresses the spring 8 when the test platen 7 moves up and down along the length direction of the pillar 4, so as to complete the life test of the spring 8.
In an embodiment of the present application, referring to fig. 1-2, the fixture further includes a clamping plate 6, where the clamping plate 6 fixedly clamps the fixing base plate 3, so that the fixing base plate 3 is fixed on the table top 1.
In an embodiment of the present application, referring to fig. 1-2, the fixture further includes a clamping and applying component 5, where the clamping and applying component 5 fixedly connects the table top 1 and the clamping plate 6 together, and the clamping force between the clamping plate 6 and the table top 1 is continuously increased by continuously screwing the clamping and applying component 5, so that the clamping plate 6 firmly fixes the fixing base plate 3 on the table top 1.
In one embodiment of the present application, referring to fig. 1-2, the clamping force application assembly 5 includes a spacer 53, a nut 52 and a bolt 51, wherein connecting through holes (not shown in the drawings) are formed in the table top 1 and the clamping plate 6, the bolt 51 passes through the connecting through holes in the table top 1 and the clamping plate 6 one by one, the nut 52 and the bolt 51 are screwed together, so that the table top 1 and the clamping plate 6 are fixed together, the spacer and the bolt 51 are sleeved together, and the spacer is located below the bolt 51 and above the clamping plate 6.
In one embodiment of the present application, referring to fig. 1-2, at least two clamping plates 6 are provided, and two clamping plates 6 are respectively disposed on the left and right sides of the fixing base plate 3, so that the fixing base plate 3 can be more firmly fixed on the table top 1.
In one embodiment of the present application, the jig further comprises a force applying device (not shown in the drawings) which regularly applies a force to the test platen 7, so that the test platen 7 compresses the springs 8 downward, thereby completing the life test of the springs 8. The force applying device in the application belongs to the prior art, and aims to regularly apply force to the test pressing plate 7, wherein the force applying device can drive a force applying rod device by a cam hydraulic machine and a motor, and even can be a tester.
In an embodiment of the present application, referring to fig. 1, the fixture further includes an intermediate plate 2, the intermediate plate 2 is fixed on the table top 1, the fixing base plate 3 is fixed on the intermediate plate 2, and the clamping plate 6 fixedly clamps the intermediate plate 2 and the table top 1, so that the fixing base plate 3 is firmly fixed on the table top 1.
The working principle of the application is as follows: the application provides a service life testing jig for a compression spring, which comprises a force application device, a fixed bottom plate 3, a support column 4 and a testing pressing plate 7, wherein the support column 4 is vertically and fixedly connected to the fixed bottom plate 3, the testing pressing plate 7 slides up and down along the length direction of the support column 4, the testing spring is sleeved on the support column 4, and the testing pressing plate 7 continuously compresses the testing spring up and down along the length direction of the support column 4, so that the service life testing of the spring is completed. The force application device regularly applies force to the test pressing plate 7, so that the test pressing plate 7 regularly moves up and down on the support column 4, and the test spring is regularly compressed, restored and compressed again to circulate. The test fixture provided by the application has a simple structure, and the fixed bottom plate 3 can be provided with a plurality of struts 4, so that a plurality of springs can be tested simultaneously, and the test efficiency is greatly improved.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a compression spring life test fixture, its characterized in that includes desktop, PMKD, pillar and test clamp plate, PMKD fixed connection is in on the desktop, pillar perpendicular fixed connection in on the PMKD, be provided with on the test clamp plate with the through-hole of pillar adaptation, the pillar passes through the through-hole on the test clamp plate, thereby make the test clamp plate with the pillar links together, the test clamp plate is followed the length direction of pillar reciprocates, thereby makes the test clamp plate with distance between the PMKD constantly changes.
2. The compression spring life test fixture of claim 1, wherein the diameter of the through hole in the test platen is greater than the diameter of the post, such that when the test platen and the post are connected together, the test platen moves up and down along the length of the post, such that the distance between the test platen and the fixed base plate is constantly changing.
3. The jig for testing the service life of a compression spring according to claim 2, wherein a spring is placed between the test platen and the fixing base plate, and the test platen compresses the spring as the test platen moves up and down along the length direction of the pillar, thereby performing a service life test of the spring.
4. The jig for testing the service life of a compression spring according to claim 3, wherein the inner diameter of the spring is larger than the diameter of the strut, the spring is sleeved on the strut, and the test pressing plate continuously compresses the spring when the test pressing plate moves up and down along the length direction of the strut, thereby completing the service life test of the spring.
5. The fixture of claim 4, further comprising a clamping plate that fixedly clamps the bottom plate such that the bottom plate is fixed to the table top.
6. The fixture of claim 5, further comprising a clamping and force application assembly, wherein the clamping and force application assembly fixedly connects the table top and the clamping plate together, and the clamping force between the clamping plate and the table top is increased by tightening the clamping and force application assembly continuously, so that the clamping plate firmly fixes the fixing bottom plate on the table top.
7. The jig for testing the service life of the compression spring according to claim 6, wherein the clamping and force application assembly comprises a gasket, a nut and a bolt, connecting through holes are formed in the tabletop and the clamping plate, the bolt penetrates through the connecting through holes in the tabletop and the clamping plate one by one, the nut and the bolt are screwed together, the tabletop and the clamping plate are fixed together, the gasket and the bolt are sleeved together, the gasket is located below the bolt, and the gasket is located above the clamping plate.
8. The jig for testing the service life of a compression spring according to claim 7, wherein at least two clamping plates are provided, and the two clamping plates are respectively arranged on the left side and the right side of the fixing base plate, so that the fixing base plate can be more firmly fixed on the tabletop.
9. The fixture for testing the service life of a compression spring according to claim 8, further comprising a force application device which regularly applies a force on the test press plate, so that the test press plate compresses the spring downwards, thereby completing the service life test of the spring.
10. The fixture of claim 9, further comprising an intermediate plate, wherein the intermediate plate is fixed to the table top, wherein the fixing base plate is fixed to the intermediate plate, and wherein the clamping plate fixedly clamps the intermediate plate and the table top, thereby firmly fixing the fixing base plate to the table top.
CN202323075015.8U 2023-11-15 Compression spring life test fixture Active CN221280642U (en)

Publications (1)

Publication Number Publication Date
CN221280642U true CN221280642U (en) 2024-07-05

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