Friction test tool for automobile window sealing strip

Abstract

The utility model discloses a friction test tool for an automobile window sealing strip. A cylinder is fixedly connected to the right side of the test board, a hook plate is fixedly connected to the left side of the cylinder, concave blocks are fixedly connected to the front end and the back end of the top of the test board, a fixing box is fixedly connected to the front ends of the concave blocks, and an adjusting mechanism is transversely and fixedly connected to the bottom of an inner cavity of the fixing box; the adjusting mechanism comprises a bottom plate, a screw rod, a turntable, an H-shaped shaft sleeve, a U-shaped plate, a connecting rod and a triangular block; and the bottom of the inner cavity of the fixed box is transversely and fixedly connected with the bottom plate. Through the arrangement of the adjusting mechanism, the rotating disc can be manually rotated, the rotating disc rotates clockwise to drive the screw rod to rotate, the screw rod rotates to enable the H-shaped shaft sleeve to move in the thread direction, the H-shaped shaft sleeve moves leftwards to drive the U-shaped plate and the connecting rod to move synchronously, and the connecting rod moves leftwards to drive the triangular block to move leftwards. And the triangular block moves without contacting with an object to realize mechanical movement.

Description

Technical Field

[0001] This utility model relates to the field of automotive window sealing strip friction testing technology, specifically an automotive window sealing strip friction testing fixture. Background Technology

[0002] The automotive window sealing strip friction testing fixture is a device specifically designed to test the friction performance between automotive window sealing strips and window glass or window frames.

[0003] The automotive industry typically follows international or domestic standards for testing the friction of window seals, such as ISO standards, SAE standards, and the company standards of major automakers. These standards specify the testing methods, equipment requirements, test parameter ranges, and pass / fail criteria. However, in the existing testing fixtures, the seals are in a slack state, and the tension cannot be adjusted, which reduces the accuracy of the test data and decreases the efficiency of the testing fixtures.

[0004] Therefore, the test fixture needs to be redesigned and modified to effectively prevent the sealing strip from being in a loose state during operation, which would lead to a decrease in the accuracy of the test data due to the inability to adjust the tension. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a friction testing fixture for automotive window sealing strips, which has the advantage of adjustable tension. This solves the problem that the sealing strip is in a loose state during the operation of the testing fixture, and the inability to adjust the tension leads to a decrease in the accuracy of the test data.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a friction testing fixture for automotive window sealing strips, comprising;

[0007] A test stand, wherein a cylinder is fixedly connected to the right side of the test stand, a hook plate is fixedly connected to the left side of the cylinder, and concave blocks are fixedly connected to the front and back ends of the top of the test stand, a fixed box is fixedly connected to the front end of the concave blocks, and an adjustment mechanism is horizontally fixedly connected to the bottom of the inner cavity of the fixed box.

[0008] The adjustment mechanism includes a base plate, a screw, a turntable, an H-shaped bushing, a U-shaped plate, a connecting rod, and a triangular block. The base plate is horizontally fixed to the bottom of the inner cavity of the fixed box. The screw is movably connected to the right side of the top of the base plate via a bearing seat. The turntable is fixedly connected to the left side of the screw, which passes through the left side of the fixed box. The H-shaped bushing is movably sleeved on the left side of the screw surface. The bottom of the H-shaped bushing is slidably connected to the top of the base plate. The U-shaped plate is fixedly connected to the top of the H-shaped bushing. The connecting rod is fixedly connected to the top of the U-shaped plate. The end of the connecting rod away from the U-shaped plate is fixedly connected to a triangular block. Movable mechanisms are fixedly connected to the left and right sides of the bottom of the inner wall of the fixed box.

[0009] In a preferred embodiment of this invention, the movable mechanism includes a vertical rod, a sleeve block, a rectangular block, an extension rod, and an L-shaped locking plate. Vertical rods are fixedly connected to the left and right sides of the bottom of the inner wall of the fixing box. The top of the vertical rod penetrates the top of the base plate and is fixedly connected to the top of the inner wall of the fixing box. A sleeve block is slidably fitted onto the top of the surface of the vertical rod. A rectangular block is fixedly connected to the inner side of the sleeve block. The bottom of the rectangular block contacts the top of the triangular block. An extension rod is fixedly connected to the top of the rectangular block. The end of the extension rod away from the rectangular block penetrates the top of the fixing box and is fixedly connected to an L-shaped locking plate. The L-shaped locking plate is located inside the concave block.

[0010] As a preferred embodiment of this utility model, a return spring is sleeved on the surface of the vertical rod, and the top and bottom of the return spring are fixedly connected to the bottom of the sleeve block and the surface of the vertical rod, respectively.

[0011] As a preferred embodiment of this utility model, the front end and back end of the base plate surface, located at the position of the H-shaped bushing, are provided with slide rails, which are used in conjunction with the H-shaped bushing.

[0012] As a preferred embodiment of this utility model, the bottom of the rectangular block and the position corresponding to the triangular block are provided with an oblique groove, which is used in conjunction with the triangular block.

[0013] As a preferred embodiment of this invention, a limiting ring is fixedly connected to the surface of the vertical rod, and the limiting ring is used in conjunction with the sleeve block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, through the setting of the adjustment mechanism, allows the turntable to be rotated manually. The clockwise rotation of the turntable drives the screw to rotate. The rotation of the screw causes the H-shaped bushing to move along the thread direction. The H-shaped bushing moves to the left, causing the U-shaped plate and the connecting rod to move synchronously. The leftward movement of the connecting rod causes the triangular block to move to the left. The movement of the triangular block does not contact the object, thus achieving mechanical movement. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 3D view of the fixed box structure;

[0018] Figure 3 This utility model Figure 2 Exploded view of the mid-base plate, screw, and turntable structure;

[0019] Figure 4 This utility model Figure 3 3D diagram of rectangular blocks and nested blocks.

[0020] In the diagram: 1. Test bench; 2. Cylinder; 3. Hook plate; 4. Concave block; 5. Fixing box; 6. Adjustment mechanism; 61. Base plate; 62. Screw; 63. Turntable; 64. H-type bushing; 65. U-shaped plate; 66. Connecting rod; 67. Triangular block; 7. Movable mechanism; 71. Vertical rod; 72. Sleeve block; 73. Rectangular block; 74. Extension rod; 75. L-shaped clamping plate; 8. Return spring; 9. Slide rail; 10. Angled groove; 11. Limiting ring. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, the present invention provides a friction testing fixture for automotive window sealing strips, comprising:

[0023] Test bench 1, cylinder 2 is fixedly connected to the right side of test bench 1, hook plate 3 is fixedly connected to the left side of cylinder 2, concave block 4 is fixedly connected to the front and back ends of the top of test bench 1, fixed box 5 is fixedly connected to the front end of concave block 4, and adjustment mechanism 6 is horizontally fixedly connected to the bottom of the inner cavity of fixed box 5.

[0024] The adjusting mechanism 6 includes a base plate 61, a screw 62, a turntable 63, an H-shaped bushing 64, a U-shaped plate 65, a connecting rod 66, and a triangular block 67. The base plate 61 is horizontally fixed to the bottom of the inner cavity of the fixed box 5. The screw 62 is movably connected to the right side of the top of the base plate 61 through a bearing seat. The turntable 63 is fixedly connected to the left side of the fixed box 5 through the left side of the screw 62. The H-shaped bushing 64 is movably sleeved on the left side of the surface of the screw 62. The bottom of the H-shaped bushing 64 is slidably connected to the top of the base plate 61. The top of the H-shaped bushing 64 is fixedly connected to the U-shaped plate 65. The connecting rod 66 is fixedly connected to the top of the U-shaped plate 65. The triangular block 67 is fixedly connected to the end of the connecting rod 66 away from the U-shaped plate 65. The movable mechanism 7 is fixedly connected to the left and right sides of the bottom of the inner wall of the fixed box 5.

[0025] refer to Figure 3 The active mechanism 7 includes a vertical rod 71, a sleeve block 72, a rectangular block 73, an extension rod 74, and an L-shaped locking plate 75. The vertical rod 71 is fixedly connected to the left and right sides of the bottom of the inner wall of the fixed box 5. The top of the vertical rod 71 passes through the top of the bottom plate 61 and is fixedly connected to the top of the inner wall of the fixed box 5. The sleeve block 72 is slidably sleeved on the top of the surface of the vertical rod 71. The rectangular block 73 is fixedly connected to the inner side of the sleeve block 72. The bottom of the rectangular block 73 contacts the top of the triangular block 67. The extension rod 74 is fixedly connected to the top of the rectangular block 73. The end of the extension rod 74 away from the rectangular block 73 passes through the top of the fixed box 5 and is fixedly connected to the L-shaped locking plate 75. The L-shaped locking plate 75 is located inside the concave block 4.

[0026] As a technical optimization of this utility model, the movable mechanism 7 enables the sleeve block 72 to move up and down along the surface of the vertical rod 71, while the sleeve block 72 moves naturally with the rectangular block 73. The rectangular block 73 moves downward, causing the extension rod 74 and the L-shaped clamping plate 75 to move synchronously. The L-shaped clamping plate 75 moves to cooperate with the concave block 4 to lock and seal.

[0027] refer to Figure 2 A return spring 8 is sleeved on the surface of the vertical rod 71. The top and bottom of the return spring 8 are fixedly connected to the bottom of the sleeve block 72 and the surface of the vertical rod 71, respectively.

[0028] As a technical optimization of this utility model, the reset spring 8 can assist the sleeve block 72 in its work and also play a role in reset buffering, thus preventing the sleeve block 72 from failing to reset after movement, which would cause the machine to stop working continuously.

[0029] refer to Figure 3 The front and back ends of the base plate 61 are provided with slide rails 9 at the positions of the H-type bushing 64. The slide rails 9 are used in conjunction with the H-type bushing 64.

[0030] As a technical optimization of this utility model, the slide rail 9 can assist the H-type bushing 64 in its operation and also serve as a limit, preventing the H-type bushing 64 from shifting during its movement.

[0031] refer to Figure 4 A slanted groove 10 is provided at the bottom of the rectangular block 73 and at the position corresponding to the triangular block 67. The slanted groove 10 is used in conjunction with the triangular block 67.

[0032] As a technical optimization of this utility model, the inclined groove 10 can assist the triangular block 67 in its work and also serve as a guide, thus preventing the rectangular block 73 from being unable to be adjusted due to different contact positions of the triangular block 67.

[0033] refer to Figure 3 A limiting ring 11 is fixedly connected to the surface of the vertical rod 71, and the limiting ring 11 is used in conjunction with the sleeve block 72.

[0034] As a technical optimization of this utility model, the setting of the limiting ring 11 can assist the sleeve block 72 in working and at the same time play a limiting role, preventing the sleeve block 72 from moving too far and causing the machine to malfunction.

[0035] The working principle and usage process of this utility model are as follows: During use, the hand-held sealing strip is positioned between the concave block 4 and the L-shaped clamping plate 75. Then, the turntable 63 is manually rotated clockwise. The rotation of the turntable 63 drives the screw 62 to rotate, causing the H-shaped bushing 64 to move to the left along the thread direction. The H-shaped bushing 64, in conjunction with the slide rail 9, moves stably on the surface of the base plate 61. The movement of the H-shaped bushing 64 then drives the U-shaped plate 65 to move accordingly. The movement of the U-shaped plate 65 causes the connecting rod 66 and the triangular block 67 to move synchronously. The movement of the triangular block 67, in conjunction with the inclined groove 10... The different contact angles cause the rectangular block 73 to fall downwards. The downward movement of the rectangular block 73 drives the sleeve block 72 to move downwards along the surface of the vertical rod 71. During the movement of the sleeve block 72, it actively resets downwards in conjunction with the return spring 8. The sleeve block 72 drives the rectangular block 73 to move downwards and causes the extension rod 74 and the L-shaped clamping plate 75 to move downwards synchronously. When the L-shaped clamping plate 75 and the concave block 4 are sealed together so that the sealing strip cannot be detached, the cylinder 2 is activated to perform a friction test. The operation of the cylinder 2 drives the hook plate 3 to move to the left. The hook plate 3 pulls the sealing strip to the left and stretches it to open, thus completing the test.

[0036] In summary, this automotive window sealing strip friction testing fixture, through the coordinated use of test bench 1, cylinder 2, hook plate 3, concave block 4, fixing box 5, adjusting mechanism 6, base plate 61, screw 62, turntable 63, H-type bushing 64, U-shaped plate 65, connecting rod 66, triangular block 67, and movable mechanism 7, solves the problem of reduced test data accuracy caused by the sealing strip being in a loose state and the inability to adjust the tension in existing testing fixtures.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A friction testing fixture for automotive window sealing strips, comprising: Test bench (1), a cylinder (2) is fixedly connected to the right side of the test bench (1), a hook plate (3) is fixedly connected to the left side of the cylinder (2), a concave block (4) is fixedly connected to the front end and back end of the top of the test bench (1), a fixed box (5) is fixedly connected to the front end of the concave block (4), and an adjustment mechanism (6) is fixedly connected to the bottom of the inner cavity of the fixed box (5). The adjustment mechanism (6) is characterized in that it includes a base plate (61), a screw (62), a turntable (63), an H-shaped bushing (64), a U-shaped plate (65), a connecting rod (66), and a triangular block (67). The bottom of the inner cavity of the fixed box (5) is horizontally fixedly connected to the base plate (61). The right side of the top of the base plate (61) is movably connected to the screw (62) through a bearing seat. The left side of the screw (62) passes through the left side of the fixed box (5) and is fixedly connected to the turntable (63). 62) An H-shaped bushing (64) is movably sleeved on the left side of the surface. The bottom of the H-shaped bushing (64) is slidably connected to the top of the base plate (61). A U-shaped plate (65) is fixedly connected to the top of the H-shaped bushing (64). A connecting rod (66) is fixedly connected to the top of the U-shaped plate (65). A triangular block (67) is fixedly connected to the end of the connecting rod (66) away from the U-shaped plate (65). Movable mechanisms (7) are fixedly connected to the left and right sides of the bottom of the inner wall of the fixed box (5).

2. The friction testing fixture for automotive window sealing strips according to claim 1, characterized in that: The active mechanism (7) includes a vertical rod (71), a sleeve block (72), a rectangular block (73), an extension rod (74), and an L-shaped clamping plate (75). The vertical rod (71) is fixedly connected to the left and right sides of the bottom of the inner wall of the fixed box (5). The top of the vertical rod (71) passes through the top of the bottom plate (61) and is fixedly connected to the top of the inner wall of the fixed box (5). The sleeve block (72) is slidably sleeved on the top of the surface of the vertical rod (71). The rectangular block (73) is fixedly connected to the inner side of the sleeve block (72). The bottom of the rectangular block (73) contacts the top of the triangular block (67). The extension rod (74) is fixedly connected to the top of the rectangular block (73). The end of the extension rod (74) away from the rectangular block (73) passes through the top of the fixed box (5) and is fixedly connected to the L-shaped clamping plate (75). The L-shaped clamping plate (75) is located inside the concave block (4).

3. The friction testing fixture for automotive window sealing strips according to claim 2, characterized in that: A return spring (8) is sleeved on the surface of the vertical rod (71), and the top and bottom of the return spring (8) are fixedly connected to the bottom of the sleeve block (72) and the surface of the vertical rod (71), respectively.

4. The friction testing fixture for automotive window sealing strips according to claim 1, characterized in that: The front and back ends of the base plate (61) are provided with slide rails (9) at the positions of the H-type bushing (64), and the slide rails (9) are used in conjunction with the H-type bushing (64).

5. The friction testing fixture for automotive window sealing strips according to claim 2, characterized in that: The bottom of the rectangular block (73) and the position corresponding to the triangular block (67) are provided with an oblique groove (10), which is used in conjunction with the triangular block (67).

6. The friction testing fixture for automotive window sealing strips according to claim 2, characterized in that: The surface of the vertical rod (71) is fixedly connected to a limiting ring (11), which is used in conjunction with the sleeve block (72).

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