Friction pad slip resistance test fixture

Abstract

The utility model relates to the technical field of friction gasket, especially to friction gasket anti -skid test frock, including bottom plate and a pair of fixed mounting in the support of bottom plate top, two supports opposite side fixed mounting have same roof, a pair of L shape board are set up in the horizontal synchronous reverse sliding of roof, vertical sliding and are inserted with rectangular pole on L shape board, and the bottom fixedly connected with the lower pressing plate of rectangular pole, and two lower pressing plates synchronous vertical movement, still include: drive assembly, drive assembly sets up on roof, and drive assembly drives two L shape boards synchronous horizontal movement, synchronous assembly, synchronous assembly sets up on L shape board, and synchronous assembly drives two rectangular poles synchronous vertical movement. The utility model discloses through the setting of drive assembly and synchronous assembly, compared with the test in prior art, and the lower pressing plate carries out rigid fixed to gasket, effectively prevents the displacement of gasket when being polished, guarantees the accuracy of test data.

Description

Technical Field

[0001] This utility model relates to the field of friction pad technology, and in particular to a testing fixture for friction pad anti-slip. Background Technology

[0002] In the common structure of CNC machine tools, some mechanical end faces are in direct contact with the rotating seat or friction pads are added between them to reduce sliding friction. At present, in order to ensure the quality of friction pads, it is necessary to extract the friction pads to test the anti-friction performance of the pad surface.

[0003] Existing technology, such as the surface performance tester for DNC friction pads disclosed in CN219599130U, includes a top plate with a hydraulic cylinder mounted below it, the output of which is connected to a mounting plate. The mounting plate has a fixing component and a servo motor at its bottom. The motor drives the grinding disc to rotate, and a sliding sleeve cooperates with a sliding rod. An internal spring allows the grinding disc to move downwards. This device automatically fixes the friction pad during grinding and automatically releases it after grinding, making operation convenient and efficient.

[0004] However, this technical solution has the following problems in practical use:

[0005] The pressure plate is fixedly mounted on one end of the slide rod, which is slidably mounted inside the slide sleeve. The spring is fixedly mounted on the inner surface of the slide sleeve, with its top end positioned at the other end of the slide rod. Under the spring's elastic force, the pressure plate presses down to fix the shim. However, because the spring is a flexible support, the shim may still shift during the grinding process, leading to grinding position deviations and thus affecting the accuracy of the test data. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art that the spring is a flexible support, and the pad may still shift during the grinding process, resulting in a deviation in the grinding position and thus affecting the accuracy of the test data. The invention proposes a friction pad anti-slip test fixture.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A friction pad anti-slip testing fixture includes a base plate and a pair of brackets fixedly installed on the top of the base plate. The same top plate is fixedly installed on opposite sides of the two brackets. A pair of L-shaped plates are horizontally and synchronously slidably arranged on the top plate. A rectangular rod is vertically slidably inserted into the L-shaped plate. A lower pressure plate is fixedly connected to the bottom end of the rectangular rod, and the two lower pressure plates move vertically synchronously.

[0009] Also includes:

[0010] A drive assembly is disposed on the top plate, and the drive assembly drives the two L-shaped plates to move horizontally synchronously.

[0011] A synchronization component is installed on the L-shaped plate, which drives the two rectangular rods to move vertically in sync.

[0012] Preferably, the drive assembly includes a pair of connecting lugs fixedly connected to the top of the top plate, and the same bidirectional lead screw is rotatably connected to the opposite sidewalls of the two connecting lugs. A pair of moving blocks are threaded onto the bidirectional lead screw, and an I-beam is fixedly connected to the moving block. The bottom end of the I-beam is fixedly connected to the top end of the L-shaped plate.

[0013] Preferably, the top plate has a sliding opening, and the I-beam is embedded in the sliding opening and horizontally slidably connected to the sliding opening.

[0014] Preferably, a motor for driving the bidirectional lead screw to rotate is fixedly connected to the connecting lug.

[0015] Preferably, the synchronization component includes a cylinder fixedly connected to the bottom of the top plate, a transmission seat fixedly connected to the output end of the cylinder bottom, and slide rods horizontally slidably inserted into both ends of the transmission seat. The slide rods and the rectangular rod are fixedly connected to the same connecting rod on opposite side walls.

[0016] Preferably, both ends of the transmission seat are provided with side grooves to facilitate the horizontal sliding insertion of the slide rod.

[0017] Compared with the prior art, the advantages of this utility model are as follows:

[0018] This invention, through the configuration of a drive assembly and a synchronization assembly, allows for the fixing of a gasket. The gasket is placed on top of the base plate, and the motor is started. The motor drives a bidirectional lead screw to slide the L-shaped plate horizontally, aligning the lower pressure plate with the gasket. Under the action of a cylinder, the transmission seat drives the lower pressure plate to press down synchronously, fixing the gasket. The lower pressure plate rigidly fixes the gasket, effectively preventing displacement during grinding and ensuring the accuracy of test data. Furthermore, it can fix gaskets of different widths or specifications, improving the overall applicability of the device. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the overall structure of the friction pad anti-slip testing fixture proposed in this utility model;

[0020] Fig. 2 This is a schematic diagram of the cylinder and transmission seat in the friction pad anti-slip testing fixture proposed in this utility model;

[0021] Fig. 3 This is a schematic diagram showing the separation of the slide bar from the transmission seat in the friction pad anti-slip testing fixture proposed in this utility model.

[0022] In the picture:

[0023] 1. Base plate; 2. Support frame; 3. Top plate;

[0024] 4. L-shaped plate; 41. I-beam block; 42. Moving block; 43. Connecting lug; 44. Double-acting lead screw; 45. Motor;

[0025] 5. Rectangular rod; 6. Lower pressure plate; 7. Cylinder; 8. Transmission seat; 9. Slide rod; 10. Connecting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figs. 1-3 A friction pad anti-slip testing fixture includes a base plate 1 and a pair of brackets 2 fixedly mounted on the top of the base plate 1. A top plate 3 is fixedly mounted on opposite sides of the two brackets 2. A pair of L-shaped plates 4 are horizontally and synchronously slidably mounted on the top plate 3. Rectangular rods 5 are vertically slidably inserted into the L-shaped plates 4. The two rectangular rods 5 are correspondingly positioned, and a grinding disc, as in the prior art, is positioned on opposite sides of the two rectangular rods 5 to facilitate grinding operations after the rectangular rods 5 fix the pad. A lower pressure plate 6 is fixedly connected to the bottom end of the rectangular rods 5, and the two lower pressure plates 6 move synchronously and vertically; the purpose of synchronous movement is to ensure that the two lower pressure plates 6 can simultaneously press down and fix the same pad.

[0028] Also includes:

[0029] The drive assembly is mounted on the top plate 3 and drives the two L-shaped plates 4 to move horizontally synchronously.

[0030] The synchronization component is set on the L-shaped plate 4, and drives the two rectangular rods 5 to move vertically in sync.

[0031] The drive assembly includes a pair of connecting lugs 43 fixedly connected to the top of the top plate 3. The two connecting lugs 43 are rotatably connected to the same bidirectional lead screw 44 on opposite sidewalls. A pair of moving blocks 42 are threaded onto the bidirectional lead screw 44. Rotation of the bidirectional lead screw 44 causes the two moving blocks 42 to move horizontally in opposite directions synchronously. An I-beam block 41 is fixedly connected to the moving block 42, and the bottom end of the I-beam block 41 is fixedly connected to the top end of the L-shaped plate 4.

[0032] A sliding opening is provided on the top plate 3, and the I-beam 41 is embedded in the sliding opening and horizontally slidably connected to the sliding opening. The purpose of the I-beam 41 and the sliding opening is to ensure that the I-beam 41 can move horizontally stably and to prevent the I-beam 41 from falling off the top plate 3.

[0033] A motor 45 for driving the bidirectional lead screw 44 to rotate is fixedly connected to the connecting ear 43.

[0034] The synchronization assembly includes a cylinder 7 fixedly connected to the bottom of the top plate 3. A transmission seat 8 is fixedly connected to the output end of the cylinder 7. Slide rods 9 are horizontally slidably inserted into both ends of the transmission seat 8. The transmission seat 8 and slide rods 9 are designed to ensure that the vertical and horizontal movements of the two rectangular rods 5 do not interfere with each other, and to guarantee that the movements of the two rectangular rods 5 occur simultaneously and synchronously. The same connecting rod 10 is fixedly connected to the opposite sidewalls of the slide rods 9 and the rectangular rods 5.

[0035] Both ends of the transmission seat 8 are provided with side grooves to facilitate the horizontal sliding insertion of the slide rod 9.

[0036] In the prior art, the hydraulic cylinder, mounting plate, servo motor and grinding disc are all located at the bottom of the top plate 3. The working principle of the hydraulic cylinder, mounting plate, servo motor and grinding disc is based on the surface performance tester for DNC friction pads disclosed in announcement number CN219599130U, which is prior art and will not be described in detail here.

[0037] The functional principle of this utility model can be explained through the following operation methods:

[0038] When using the friction pad anti-slip test fixture, first place the friction pad to be tested on the base plate 1.

[0039] The motor 45 of the drive assembly is started, and the motor 45 drives the bidirectional lead screw 44 to rotate. Since the bidirectional lead screw 44 is threadedly connected to a pair of moving blocks 42, and the I-shaped block 41 fixed on the moving block 42 is embedded in the sliding opening of the top plate 3 and can slide horizontally, the two moving blocks 42 move synchronously in opposite directions on the bidirectional lead screw 44, thereby driving the L-shaped plate 4 connected to it to slide horizontally in opposite directions on the top plate 3, thereby adjusting the horizontal position of the L-shaped plate 4, so that the rectangular rod 5 vertically slidably inserted into the L-shaped plate 4 and the lower pressure plate 6 at the bottom are aligned with the friction pad.

[0040] After the horizontal position is adjusted, cylinder 7 of the synchronization component is activated. The output end of cylinder 7 drives the transmission seat 8 to move vertically. Since the transmission seat 8 has side grooves at both ends, the slide rod 9 slides horizontally into the side grooves. The slide rod 9 is connected to the rectangular rod 5 through the connecting rod 10. Therefore, when the transmission seat 8 moves, the slide rod 9 drives the two rectangular rods 5 to move vertically synchronously through the connecting rod 10, so that the lower pressure plate 6 presses down synchronously, applying vertical pressure to the friction pad for anti-slip testing.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A friction pad anti-slip testing fixture, comprising a base plate (1) and a pair of brackets (2) fixedly mounted on the top of the base plate (1), characterized in that, The two brackets (2) are fixedly installed with the same top plate (3) on opposite sides. A pair of L-shaped plates (4) are horizontally and synchronously slidably arranged on the top plate (3). A rectangular rod (5) is vertically slidably inserted on the L-shaped plate (4). A lower pressure plate (6) is fixedly connected to the bottom end of the rectangular rod (5), and the two lower pressure plates (6) move vertically synchronously. Also includes: A drive assembly is provided on the top plate (3) and drives the two L-shaped plates (4) to move horizontally synchronously. A synchronization component is installed on the L-shaped plate (4) and drives the two rectangular rods (5) to move vertically in sync.

2. The friction pad anti-slip testing fixture according to claim 1, characterized in that, The drive assembly includes a pair of connecting ears (43) fixedly connected to the top of the top plate (3). The two connecting ears (43) are rotatably connected to the same bidirectional lead screw (44) on opposite sidewalls. A pair of moving blocks (42) are threaded onto the bidirectional lead screw (44). An I-beam (41) is fixedly connected to the moving block (42). The bottom end of the I-beam (41) is fixedly connected to the top end of the L-shaped plate (4).

3. The friction pad anti-slip testing fixture according to claim 2, characterized in that, The top plate (3) has a sliding opening, and the I-shaped block (41) is embedded in the sliding opening and is horizontally slidably connected to the sliding opening.

4. The friction pad anti-slip testing fixture according to claim 2, characterized in that, A motor (45) for driving the bidirectional lead screw (44) to rotate is fixedly connected to the connecting ear (43).

5. The friction pad anti-slip testing fixture according to claim 1, characterized in that, The synchronization component includes a cylinder (7) fixedly connected to the bottom of the top plate (3). A transmission seat (8) is fixedly connected to the output end of the bottom of the cylinder (7). A slide rod (9) is horizontally slidably inserted at both ends of the transmission seat (8). The same connecting rod (10) is fixedly connected to the opposite side wall of the slide rod (9) and the rectangular rod (5).

6. The friction pad anti-slip testing fixture according to claim 5, characterized in that, Both ends of the transmission seat (8) are provided with side grooves to facilitate the horizontal sliding insertion of the slide rod (9).

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