Jig for testing high and low temperature deformation of plastic part
By designing a high and low temperature deformation test fixture for plastic parts, the problem of inaccurate deformation measurement of plastic parts in the existing technology has been solved, and high-precision deformation measurement has been achieved to meet the requirements for product qualification.
Patent Information
- Application Number
- CN202520428876.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing plastic part deformation testing devices are not very accurate, and most rely on visual inspection with a ruler, resulting in inaccurate measurements.
A high and low temperature deformation test fixture for plastic parts was designed, including an operating table, a measuring plate, a guide rod, a socket block, an adjusting rod, and a pressing platform. Through the design of threaded fit and protective layer, the thickness of plastic parts can be measured at room temperature, low temperature and high temperature, thereby improving the measurement accuracy.
With its simple structure and easy assembly, it can accurately measure the deformation of plastic parts at different temperatures, meeting the qualified deformation standard and improving the accuracy of the measurement.
Smart Images
Figure CN223741429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic part measuring equipment, specifically a fixture for testing the high and low temperature deformation of plastic parts. Background Technology
[0002] Plastic parts are materials composed of one or more polymer compounds that can be molded into various shapes by heating and pressurizing, and maintain their shape at room temperature. To measure the expansion and contraction of plastic parts at different temperatures, their deformation is often measured; qualified products require deformation to be within standard ranges. Currently, there are few existing devices for testing the deformation of plastic parts, and most still rely on manual measurement by visual inspection with a ruler, which is not very accurate. Therefore, to improve measurement accuracy, this invention proposes a fixture for testing the high and low temperature deformation of plastic parts. Utility Model Content
[0003] The purpose of this utility model is to provide a high and low temperature deformation test fixture for plastic parts to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high and low temperature deformation test fixture for plastic parts, including an operating table, a measuring plate mounted on the operating table, a screw connected to the bottom of the measuring plate, the screw penetrating the operating table downwards and being locked and positioned by a first nut, and a guide rod also provided on the operating table, the guide rod being arranged parallel to the measuring plate and perpendicular to the operating table;
[0005] A socket block is adjustablely installed above the measuring plate. A support plate extends from the socket block toward the guide rod. One end of the support plate is sleeved on the guide rod. An adjusting rod that can be screwed in or out is installed on the other end of the support plate. A pressing platform is movably sleeved below the adjusting rod. A connecting block is fixedly installed on the pressing platform toward the guide rod. The connecting block is fitted onto the guide rod. A U-shaped clamping block is provided on the side of the connecting block toward the measuring plate.
[0006] Preferably, the bottom of the guide rod passes through the operating table and extends downward, the guide rod is threaded towards the bottom of the operating table, and the guide rod is locked to the operating table by a second nut screwed into the bottom.
[0007] Preferably, a handle is provided above the adjusting rod.
[0008] Preferably, the bottom of the pressing platform is provided with a first protective layer, which is made of rubber material.
[0009] Preferably, a buffer pad is provided on the inner side of the connecting block that contacts the guide rod, and the buffer pad is a foam sponge pad.
[0010] Preferably, the adjusting rod and the support plate are threaded together, and the top of the adjusting rod is rotatably mounted in the receiving seat of the pressing platform.
[0011] Preferably, the inward-facing side of the clamping block is provided with a second protective layer, which is made of rubber material.
[0012] Preferably, the socket block is horizontally locked onto the measuring plate after being tightened by the set bolt.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention uses a measuring plate and guide rod vertically mounted on an operating table. A socket block is first positioned on the measuring plate, and then an adjusting rod on the other side of the socket block is screwed in or out to adjust its height. This adjustment rod causes the pressing platform to rise or fall, pressing it onto the plastic part to be measured. The thickness of the plastic part is measured at room temperature, and then at low and high temperatures to determine its deformation at both temperatures. This allows for the determination of whether the deformation meets the acceptable standard. Compared to the crude measurement methods of existing technologies, this solution has a simpler structure, is easier to assemble, and offers higher measurement accuracy. Attached Figure Description
[0015] Figure 1 This is a front structural diagram of the present invention;
[0016] Figure 2 This is a top view of the clamping block portion of this utility model.
[0017] Figure 3 This is a top view of the socket block portion of this utility model.
[0018] In the figure: operating table (1), measuring plate (2), marking line (21), first nut (22), screw (23), sleeve block (3), set bolt (31), support plate (32), adjusting rod (4), handle (41), pressing platform (42), first protective layer (43), connecting block (44), clamping block (45), second protective layer (451), buffer pad (46), guide rod (5), second nut (51). Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3 This utility model provides a high and low temperature deformation testing fixture for plastic parts, including an operating table 1. A measuring plate 2 is mounted on the operating table 1. A screw 23 is connected to the bottom of the measuring plate 2. The screw 23 passes through the operating table 1 downwards and is locked in place by a first nut 22. A guide rod 5 is also provided on the operating table 1. The guide rod 5 is parallel to the measuring plate 2 and perpendicular to the operating table 1. The configuration of the guide rod 5 is the same as that of the measuring plate 2. For details, see [link to details]. Figure 1 The bottom of the guide rod 5 passes through the operating table 1 and extends downward. The guide rod 5 is threaded downward toward the operating table 1. The guide rod 5 is locked onto the operating table 1 by a second nut 51 screwed into the bottom.
[0021] A sleeve block 3 is adjustablely installed above the measuring plate 2. Specifically, the sleeve block 3 is horizontally locked onto the measuring plate 2 after being tightened by a set bolt 31. A support plate 32 extends from the side of the sleeve block 3 toward the guide rod 5. One end of the support plate 32 is sleeved on the guide rod 5, and an adjusting rod 4 that can be screwed in or out is installed on the other end of the support plate 32. That is, the adjusting rod 4 and the support plate 32 are threaded together. In order not to affect the descent effect of the pressing platform 42, the top of the adjusting rod 4 is rotatably installed in the receiving seat of the pressing platform 42. For easy manual operation, a handle 41 is provided above the adjusting rod 4, and the pressing platform is movably sleeved below the adjusting rod 4. 42. To reduce wear on the plastic parts surface caused by the pressing platform 42, a first protective layer 43 is provided at the bottom of the pressing platform 42. The first protective layer 43 is made of rubber material. A connecting block 44 is fixedly provided on the side of the pressing platform 42 facing the guide rod 5. The connecting block 44 is fitted onto the guide rod 5. A U-shaped clamping block 45 is provided on the side of the connecting block 44 facing the measuring plate 2. Similarly, to prevent wear, a second protective layer 451 is provided on the inward side of the clamping block 45. The second protective layer 451 is made of rubber material. In order to allow the pressing platform 42 to descend slowly, a buffer pad 46 is provided on the inner side of the connecting block 44 that contacts the guide rod 5. The buffer pad 46 is a foam sponge pad.
[0022] In practical use, first install the measuring plate and guide rod on the operating table. Then, insert the sleeve block and support plate into the measuring plate and guide rod respectively. The sleeve block is horizontally locked onto the measuring plate by a set bolt screwed in from the outside to the inside. Then, manually screw in or out the adjusting rod to move the pressing platform downwards or upwards. Because the adjusting rod and support plate are threaded, it can be limited to downward movement during manual adjustment. Since the adjusting rod is assembled in the material bearing seat of the pressing platform, even if the adjusting rod rotates, it will not cause the pressing platform to rotate; the pressing platform will only move up and down. Furthermore, the outer side of the pressing platform... The system consists of a connecting block and a clamping block. The connecting block contains a buffer pad to cushion the descent. The clamping block is fitted onto the outside of the measuring plate. When moved to a specific position, it blocks the markings on the measuring plate, allowing the measurement value to be read. It should be noted that this solution can be operated manually or by connecting an external drive motor to move the adjusting rod. In practice, after sequentially testing the thickness of the plastic part at room temperature, low temperature, and high temperature, specific values and deformation can be obtained to determine the product specifications. This solution has a simple structure and is easy to operate.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high and low temperature deformation test fixture for plastic parts, characterized in that: The operation table is provided with a measuring plate, the bottom of the measuring plate is connected with a screw rod, the screw rod penetrates into the operation table downward and is locked and positioned by a first nut, the operation table is further provided with a guide rod, the guide rod is arranged in parallel with the measuring plate and is perpendicular to the operation table; A sleeve block is adjustably mounted above the measuring plate, a supporting plate is arranged on the side of the sleeve block facing the guide rod, one end of the supporting plate is sleeved on the guide rod, an adjusting rod which can be screwed in or out is mounted on the other end of the supporting plate, a pressing platform is movably sleeved below the adjusting rod, a connecting block is fixedly arranged on the side of the pressing platform facing the guide rod, the connecting block is sleeved on the guide rod, and a U-shaped clamping block is arranged on the side of the connecting block facing the measuring plate.
2. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: The bottom of the guide rod penetrates into the operation table and extends downward, the guide rod is provided with threads towards the bottom of the operation table, and the guide rod is locked on the operation table by a second nut screwed into the bottom.
3. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: A handle is arranged above the adjusting rod.
4. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: The bottom of the pressing platform is provided with a first protective layer made of rubber material.
5. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: A buffer gasket is arranged on the inner side of the connecting block in contact with the guide rod, and the buffer gasket is a foam sponge pad.
6. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: The adjusting rod is in threaded cooperation with the supporting plate, and the top of the adjusting rod is rotatably mounted in a receiving seat of the pressing platform.
7. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: The inward side of the clamping block is provided with a second protective layer made of rubber material.
8. The high and low temperature deformation test fixture for plastic parts according to claim 1, characterized in that: The sleeve block is horizontally locked on the measuring plate by being screwed with a locking bolt.