Positioning clamp for PI film production detection
By designing a positioning fixture using threaded rods and cylinder-driven L-shaped plates, the problems of reduced accuracy of electric push rods and external impact in the prior art are solved, and high-precision positioning and stable detection of PI films are achieved, which are suitable for PI films of different specifications and thicknesses.
Patent Information
- Application Number
- CN202421779253.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the existing PI film strength detection device, the electric push rod pushes the accuracy down after long and high frequency use, resulting in inaccurate positioning and testing errors, and external force impact and vibration may damage the PI film, reducing detection accuracy and reliability.
A positioning fixture for PI film production and testing is designed, using threaded rods and cylinder-driven L-shaped plates. The slow and smooth movement of the threaded rod ensures the high accuracy of the clamp during positioning, and the PI film is stretched through the relative movement of the cylinder to detect its strength.
It improves the positioning accuracy of PI films, reduces test errors, ensures that PI film remains stable before detection, avoids external impact and vibration, and is suitable for PI film strength testing of different specifications and thicknesses.
Smart Images

Figure CN222806893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PI film production detection, and more specifically, to a positioning fixture used for PI film production detection. Background Art
[0002] Before the PI film is put into market application, it is crucial to ensure the accurate detection of its mechanical strength, because it is directly related to the quality of the product and the experience of the end user. However, in the strength detection process, the precise positioning of the PI film is the prerequisite for accurate testing. At present, the commonly used positioning devices on the market mostly rely on electric push rods to drive the positioning plate. Although this method realizes automated operation to a certain extent, its potential problems cannot be ignored. First of all, the accuracy of the electric push rod in pushing the positioning plate will gradually decrease due to mechanical wear, aging of electrical components and other factors during long-term and high-frequency use. This loss of accuracy will directly affect the positioning accuracy of the PI film, and then introduce unnecessary test errors in the strength detection process. For example, if the positioning plate fails to accurately fix the PI film in the predetermined position, it may cause the test force line to deviate from the expected path, so that the test results cannot truly reflect the actual strength of the PI film. Secondly, when the electric push rod drives the positioning plate, it is often accompanied by a large impact force due to its relatively fast movement speed. This external force impact may not only cause slight deformation or damage to the PI film itself, but also cause vibration of the system during the positioning process. This vibration will further interfere with the stability of the test environment, making the test results affected by dynamic factors, thereby reducing the accuracy and reliability of the test. In addition, the positioning device driven by the electric actuator also has certain challenges in terms of maintenance and servicing. Due to the complexity of the internal structure of the electric actuator, once a failure or performance degradation occurs, professional technicians are often required to diagnose and repair it, which not only increases maintenance costs, but may also affect production progress. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a positioning fixture for PI film production detection, which has the advantage of good PI film production detection effect.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a positioning fixture for PI film production and testing, comprising a base plate, a C-shaped frame is fixedly installed on the top of the base plate, a cylinder is fixedly installed on the top and bottom of the C-shaped frame, an L-shaped plate is fixedly installed on the other end of the cylinder, a rectangular groove is provided on the surface of the L-shaped plate, a threaded rod is movably installed inside the rectangular groove, a handle is fixedly installed on one end of the threaded rod, a socket block is movably installed on the surface of the threaded rod, a splint is fixedly installed on the top of the socket block, a slide groove is provided on the surface of the L-shaped plate, a round rod is fixedly installed inside the slide groove, a slider is movably installed on the surface of the round rod, and the slider is fixedly connected to the splint.
[0005] As a preferred technical solution of the utility model, a fixing rod is fixedly installed inside the C-shaped frame, a side plate is movably installed on the surface of the fixing rod and the side plate is fixedly connected to the L-shaped plate, and a spring is arranged on the surface of the fixing rod.
[0006] As a preferred technical solution of the utility model, four groups of legs are fixedly installed on the bottom of the base plate, and leg pads are fixedly installed on the bottom of the four groups of legs.
[0007] As a preferred technical solution of the utility model, a reinforcing rib is fixedly installed at the connection between the bottom plate and the C-shaped frame, and the shape of the reinforcing rib is a triangle.
[0008] As a preferred technical solution of the utility model, there are two groups of the sliding grooves, and the two groups of the sliding grooves are distributed on both sides of the rectangular groove.
[0009] As a preferred technical solution of the utility model, a rubber layer is fixedly installed on the inner wall of the L-shaped plate and the inner wall of the clamping plate, and the L-shaped plate is made of stainless steel.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] The utility model places the two ends of the PI film inside the two groups of L-shaped plates respectively, and then rotates the handles in sequence to move the sleeve blocks on the surface of the threaded rod, so that the clamping plate also moves synchronously, and the slider also slides synchronously on the surface of the round rod, and the PI film is positioned by the inner wall of the clamping plate and the L-shaped plate, and then starts the two groups of cylinders. The relative movement of the two groups of cylinders causes the two groups of L-shaped plates to move relatively, thereby stretching the PI film, and detecting the strength by the stretching force. Compared with the traditional device, this device can ensure that the clamping plate achieves higher accuracy when positioning the PI film through the threaded rod, and reduce the test error caused by inaccurate positioning. At the same time, the slow and smooth movement of the threaded rod can ensure that the PI film is in a stable state before the test, and avoids test inaccuracies caused by external impact or vibration. In addition, this device can adapt to the tensile strength test of PI films of different specifications and thicknesses, and thus has the characteristics of strong adaptability and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the side structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the fixing rod of the utility model;
[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the L-shaped plate of the utility model;
[0016] Figure 5 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.
[0017] In the figure: 1. bottom plate; 2. C-shaped frame; 3. cylinder; 4. L-shaped plate; 5. rectangular groove; 6. threaded rod; 7. socket block; 8. clamping plate; 9. handle; 10. side plate; 11. fixing rod; 12. spring; 13. slide groove; 14. round rod; 15. slider; 16. reinforcing rib; 17. outrigger; 18. outrigger pad. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figures 1 to 5As shown, the utility model provides a positioning fixture for PI film production and detection, including a bottom plate 1, a C-shaped frame 2 is fixedly installed on the top of the bottom plate 1, a cylinder 3 is fixedly installed on the top and bottom of the C-shaped frame 2, an L-shaped plate 4 is fixedly installed on the other end of the cylinder 3, a rectangular groove 5 is provided on the surface of the L-shaped plate 4, a threaded rod 6 is movably installed inside the rectangular groove 5, a handle 9 is fixedly installed at one end of the threaded rod 6, a socket block 7 is movably installed on the surface of the threaded rod 6, a clamping plate 8 is fixedly installed on the top of the socket block 7, a sliding groove 13 is provided on the surface of the L-shaped plate 4, a round rod 14 is fixedly installed inside the sliding groove 13, a slider 15 is movably installed on the surface of the round rod 14, and the slider 15 is fixedly connected to the clamping plate 8;
[0020] When in use, the two ends of the PI film are placed inside the two groups of L-shaped plates 4 respectively, and then the handle 9 is rotated in turn, and the threaded rod 6 is rotated synchronously by the rotation of the handle 9, and the sleeve block 7 on the surface of the threaded rod 6 is moved on the surface of the threaded rod 6 by the rotation of the sleeve block 7, and the clamping plate 8 is also moved by the movement of the sleeve block 7. At the same time, the slider 15 slides synchronously on the surface of the round rod 14, and then the PI film is positioned by the cooperation between the clamping plate 8 and the inner wall of the L-shaped plate 4. Then the staff starts the two groups of cylinders 3, and the two groups of cylinders 3 move relatively, thereby driving the two groups of L-shaped plates 4 to move relatively, thereby gradually stretching the PI film, and the strength of the PI film is reflected by the stretching force;
[0021] The two ends of the PI film are respectively placed inside the two groups of L-shaped plates 4, and then the handle 9 is rotated in sequence to move the socket block 7 on the surface of the threaded rod 6, so that the clamping plate 8 also moves synchronously, and the slider 15 also slides synchronously on the surface of the round rod 14, and the PI film is positioned by the inner wall of the clamping plate 8 and the L-shaped plate 4, and then the two groups of cylinders 3 are started. The relative movement of the two groups of cylinders 3 causes the two groups of L-shaped plates 4 to move relatively, thereby stretching the PI film, and detecting the strength by the stretching force. Compared with the traditional device, this device can ensure that the clamping plate 8 achieves a higher accuracy when positioning the PI film through the threaded rod 6, reducing the test error caused by inaccurate positioning. At the same time, the slow and smooth movement of the threaded rod 6 can ensure that the PI film is in a stable state before the test, avoiding test inaccuracies caused by external force impact or vibration, and this device can adapt to the tensile strength test of PI films of different specifications and thicknesses, so it has the characteristics of strong adaptability and a wide range of applications.
[0022] A fixing rod 11 is fixedly installed inside the C-shaped frame 2, a side plate 10 is movably installed on the surface of the fixing rod 11, and the side plate 10 is fixedly connected to the L-shaped plate 4, and a spring 12 is arranged on the surface of the fixing rod 11;
[0023] A fixing rod 11 is fixedly installed inside the C-shaped frame 2, a side plate 10 is movably installed on the surface of the fixing rod 11, and the side plate 10 is fixedly connected to the L-shaped plate 4. A spring 12 is arranged on the surface of the fixing rod 11. Through this device, the cylinder 3 can improve the stability of the L-shaped plate 4 while driving the L-shaped plate 4 to move, thereby improving the accuracy of detection.
[0024] Among them, four groups of legs 17 are fixedly installed at the bottom of the base plate 1, and leg pads 18 are fixedly installed at the bottom of the four groups of legs 17;
[0025] Four groups of legs 17 are fixedly installed at the bottom of the base plate 1 , and leg pads 18 are fixedly installed at the bottom of the four groups of legs 17 . The leg pads 18 can disperse the pressure from above, thereby improving the stability of the device during operation.
[0026] Among them, a reinforcing rib 16 is fixedly installed at the connection between the bottom plate 1 and the C-shaped frame 2, and the shape of the reinforcing rib 16 is a triangle;
[0027] A reinforcing rib 16 is fixedly installed at the connection between the bottom plate 1 and the C-shaped frame 2. The reinforcing rib 16 can strengthen the connection between the bottom plate 1 and the C-shaped frame 2. The reinforcing rib 16 has a triangular shape, which has stability.
[0028] There are two groups of slide grooves 13, and the two groups of slide grooves 13 are distributed on both sides of the rectangular groove 5;
[0029] There are two groups of slide grooves 13, which are distributed on both sides of the rectangular groove 5. The two groups of slide grooves 13 make the clamping plate 8 more stable while moving, thereby improving the clamping effect.
[0030] Wherein, a rubber layer is fixedly installed on the inner wall of the L-shaped plate 4 and the inner wall of the clamping plate 8, and the L-shaped plate 4 is made of stainless steel;
[0031] A rubber layer is fixedly installed on the inner wall of the L-shaped plate 4 and the inner wall of the clamping plate 8. The rubber layer can ensure that the surface of the PI film will not be worn and damaged when the PI film is positioned. The L-shaped plate 4 is made of stainless steel, which has high strength and good rust resistance.
[0032] The working principle and use process of this utility model:
[0033] When in use, the two ends of the PI film are respectively placed inside the two groups of L-shaped plates 4, and then the handle 9 is rotated in turn. The threaded rod 6 rotates synchronously through the rotation of the handle 9, and the sleeve block 7 on the surface of the threaded rod 6 moves on the surface of the threaded rod 6 through the rotation of the sleeve block 7. The clamping plate 8 also moves through the movement of the sleeve block 7. At the same time, the slider 15 slides synchronously on the surface of the round rod 14, and then the PI film is positioned through the cooperation between the clamping plate 8 and the inner wall of the L-shaped plate 4. Then the staff starts the two groups of cylinders 3, and the two groups of cylinders 3 move relative to each other, thereby driving the two groups of L-shaped plates 4 to move relative to each other, thereby gradually stretching the PI film, and the strength of the PI film is reflected by the stretching force.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0035] 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 the 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 positioning fixture for PI film production and testing, comprising a base plate (1), characterized in that: A C-shaped frame (2) is fixedly mounted on the top of the bottom plate (1), a cylinder (3) is fixedly mounted on the top and bottom of the C-shaped frame (2), an L-shaped plate (4) is fixedly mounted on the other end of the cylinder (3), a rectangular groove (5) is provided on the surface of the L-shaped plate (4), a threaded rod (6) is movably mounted inside the rectangular groove (5), a handle (9) is fixedly mounted on one end of the threaded rod (6), a sleeve block (7) is movably mounted on the surface of the threaded rod (6), a clamping plate (8) is fixedly mounted on the top of the sleeve block (7), a sliding groove (13) is provided on the surface of the L-shaped plate (4), a round rod (14) is fixedly mounted inside the sliding groove (13), a sliding block (15) is movably mounted on the surface of the round rod (14), and the sliding block (15) is fixedly connected to the clamping plate (8).
2. The positioning fixture for PI film production and testing according to claim 1 is characterized in that: A fixing rod (11) is fixedly installed inside the C-shaped frame (2), a side plate (10) is movably installed on the surface of the fixing rod (11), and the side plate (10) is fixedly connected to the L-shaped plate (4), and a spring (12) is arranged on the surface of the fixing rod (11).
3. The positioning fixture for PI film production and testing according to claim 1 is characterized in that: Four groups of supporting legs (17) are fixedly mounted on the bottom of the base plate (1), and supporting leg pads (18) are fixedly mounted on the bottoms of the four groups of supporting legs (17).
4. The positioning fixture for PI film production and testing according to claim 1, characterized in that: A reinforcing rib (16) is fixedly mounted at the connection between the bottom plate (1) and the C-shaped frame (2); the reinforcing rib (16) has a triangular shape.
5. The positioning fixture for PI film production and testing according to claim 1, characterized in that: There are two groups of the sliding grooves (13), and the two groups of the sliding grooves (13) are distributed on both sides of the rectangular groove (5).
6. The positioning fixture for PI film production and testing according to claim 1, characterized in that: A rubber layer is fixedly mounted on the inner wall of the L-shaped plate (4) and the inner wall of the clamping plate (8), and the L-shaped plate (4) is made of stainless steel.