A clamping device for a roughness tester

Abstract

This utility model relates to the field of surface roughness tester technology and discloses a clamping device for a surface roughness tester, including a fixed frame. A perforated plate is installed at the bottom of the fixed frame, a slider is slidably connected to the inner wall of the fixed frame, a base plate is installed at the top of the slider, and a U-shaped internal toothed plate is installed on the inner wall of the top of the base plate. An adjusting rod drives a positioning gear to rotate, which in turn drives a bidirectional lead screw to synchronously transmit power. The bidirectional lead screw then drives two sliders to move towards each other. The movement of the sliders causes the side plates connected to them to move, which in turn causes a push plate to move. After the side of the push plate is in close contact with the side of the part, the bidirectional lead screw drives the side plate to continue moving through the slider. The push plate then drives the outer edge of the guide rod to slide on the inner wall of the side plate, causing the transmission gear to mesh and rotate with the convex teeth on the inner wall of the U-shaped internal toothed plate. The transmission gear then drives the clamping plate to rotate through a rotating rod, and the clamping plate, in conjunction with the push plate, clamps and limits the part at multiple angles.

Description

Technical Field

[0001] This utility model relates to the field of roughness tester technology, specifically to a clamping device for a roughness tester. Background Technology

[0002] A roughness tester is a micron / nanometer-level precision measuring instrument used to quantitatively detect the degree of microscopic unevenness (roughness / smoothness) on the surface of a part, and outputs standard parameters such as Ra and Rz, replacing the qualitative judgment of traditional "sample comparison".

[0003] Traditional roughness testers use clamping devices that utilize the synchronous rotation of the external threads at both ends of a bidirectional lead screw. This leads to the movement of two sliders in opposite directions, which in turn move two clamping plates to clamp and limit the workpiece to be measured. Multiple electric telescopic rods are then used to assist in multi-dimensional position adjustment of the roughness tester's detection end, thus aiding in roughness detection. However, traditional devices often use two opposing square plates to clamp the workpiece from both sides, making it difficult to stably clamp and limit parts with different shapes for roughness detection, thus affecting the test results. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a clamping device for a roughness meter to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a clamping device for a roughness tester, comprising a fixed frame, a perforated plate installed at the bottom of the fixed frame, two sliders slidably connected to the inner wall of the fixed frame, a base plate installed at the top of the two sliders, a U-shaped internal toothed plate installed on the inner wall of the top of the base plate, a top plate installed on the top of the U-shaped internal toothed plate, and the bottom of the top plate connected to the top of the base plate, a side plate installed on the side of the top plate, a groove formed at the top of the top plate, a square plate slidably connected to the inner wall of the groove, and a rotating rod rotatably sleeved on the inner wall of the square plate, a transmission gear installed at the bottom of the rotating rod, and a push plate rotatably sleeved on the outer edge of the rotating rod.

[0006] As a preferred embodiment of this utility model, the protruding teeth on the inner wall of the U-shaped internal tooth plate mesh with the protruding teeth on the outer edge of the transmission gear, and a clamping plate is fixedly sleeved on the outer edge of the rotating rod.

[0007] As a preferred embodiment of this utility model, a guide rod is slidably sleeved on the inner wall of the side plate, and the side of the guide rod is connected to the side of the push plate. A spring is fixedly connected to the side of the push plate, and the end of the spring away from the push plate is fixedly connected to the side of the side plate.

[0008] As a preferred embodiment of this utility model, a transmission rod is rotatably sleeved on the inner wall of the fixed frame, and a bidirectional lead screw is installed on the side of the transmission rod. The outer edge of the bidirectional lead screw is threadedly connected to the inner wall of the slider. The end of the transmission rod away from the bidirectional lead screw passes through the inner wall of the fixed frame and is connected to a positioning gear. An adjusting rod is installed on the side of the positioning gear. A placement frame is installed on the inner wall of the fixed frame, and the inner wall of the placement frame is rotatably sleeved with the outer edge of the bidirectional lead screw.

[0009] As a preferred embodiment of this utility model, a positioning frame is installed on the side of the fixed frame, and a positioning tooth plate is slidably connected to the inner wall of the positioning frame, and the protruding teeth on the top of the positioning tooth plate mesh with the protruding teeth on the outer edge of the positioning gear.

[0010] As a preferred embodiment of this utility model, a second spring is fixedly connected to the bottom of the positioning tooth plate, and the bottom of the second spring is fixedly connected to the bottom of the inner wall of the positioning frame. A pull plate is installed on the side of the positioning tooth plate, and the side of the pull plate is slidably connected to the inner wall of the positioning frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This surface roughness tester uses a clamping device. Through the cooperation of the side plate and the push plate, the adjusting rod drives the positioning gear to rotate, which in turn drives the bidirectional lead screw to drive synchronously. The bidirectional lead screw then drives two sliders to move towards each other. The movement of the sliders causes the side plate connected to them to move, and the side plate in turn drives the push plate to move. After the side of the push plate is in close contact with the side of the part, the bidirectional lead screw drives the side plate to continue moving through the slider. The push plate then drives the outer edge of the guide rod to slide on the inner wall of the side plate, and drives the transmission gear to rotate in the meshing of the convex teeth on the inner wall of the U-shaped internal gear plate. The transmission gear then drives the clamping plate to rotate through the rotating rod, and the clamping plate, in conjunction with the push plate, clamps and limits the part at multiple angles.

[0013] 2. The roughness tester uses a clamping device. Through the cooperation of the positioning gear and the positioning tooth plate, the pull plate drives the positioning tooth plate to move downward, which helps the convex teeth of the positioning tooth plate to separate from the convex teeth of the positioning gear. Then, the adjusting rod drives the bidirectional lead screw to rotate synchronously through the positioning gear until the bidirectional lead screw rotates to the required position. Then, the pull plate is released, and the spring pushes the positioning tooth plate upward on the inner wall of the positioning frame, which in turn helps the convex teeth of the positioning tooth plate to mesh with the positioning gear, and thus helps the two side plates to be limited. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the orthographic structure of the guide rod of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a side sectional view of the placement rack of this utility model;

[0018] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0019] Figure 6 This is a schematic diagram of the placement rack structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the clamping plate structure of this utility model.

[0021] In the diagram: 1. Fixed frame; 2. Perforated plate; 3. Base plate; 4. U-shaped internal toothed plate; 5. Top plate; 6. Side plate; 7. Slide groove; 8. Square plate; 9. Rotating rod; 10. Transmission gear; 11. Push plate; 12. Clamping plate; 13. Guide rod; 14. Spring 1; 15. Double-acting lead screw; 16. Transmission rod; 17. Positioning gear; 18. Positioning frame; 19. Spring 2; 20. Positioning toothed plate; 21. Pull plate; 22. Adjusting rod; 23. Placement frame; 24. Slider. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-7A roughness tester clamping device includes a fixed frame 1, a perforated plate 2 mounted on the bottom of the fixed frame 1, two sliders 24 slidably connected to the inner wall of the fixed frame 1, a base plate 3 mounted on the top of the two sliders 24, a U-shaped internal toothed plate 4 mounted on the inner wall of the top of the base plate 3, a top plate 5 mounted on the top of the U-shaped internal toothed plate 4, and the bottom of the top plate 5 connected to the top of the base plate 3. A side plate 6 is mounted on the side of the top plate 5, and a groove 7 is formed on the top of the top plate 5. A square plate 8 is slidably connected to the inner wall of the groove 7, and a rotating rod 9 is rotatably sleeved on the inner wall of the square plate 8. A transmission gear 10 is mounted on the bottom of the rotating rod 9, and a pusher is rotatably sleeved on the outer edge of the rotating rod 9. Plate 11, through the cooperation of slider 24 and fixed frame 1, uses slider 24 to slide in the inner wall of fixed frame 1, thereby using slider 24 to drive push plate 11 and side plate 6 to move synchronously through base plate 3. Through the cooperation of square plate 8 and slide groove 7, the side of square plate 8 slides in the inner wall of slide groove 7, thereby using square plate 8 to drive push plate 11 to adjust position through rotating rod 9. By adding perforated plate 2, it assists in docking the bottom of perforated plate 2 with the top of processing table. Then, fixing bolts are passed through the inner wall of perforated plate 2 and docked with the inner wall of processing table, thereby assisting in the erection of perforated plate 2, and thus realizing the overall erection of the device.

[0024] In a preferred embodiment, the protruding teeth on the inner wall of the U-shaped internal gear plate 4 mesh with the protruding teeth on the outer edge of the transmission gear 10. A clamping plate 12 is fixedly sleeved on the outer edge of the rotating rod 9. Through the cooperation between the U-shaped internal gear plate 4 and the transmission gear 10, the push plate 11 is continuously moved by the side plate 6. The push plate 11 is in close contact with the adjacent side of the part and moves towards the side plate 6. As a result, the transmission gear 10 moves with the square plate 8. At the same time, the protruding teeth on the inner wall of the U-shaped internal gear plate 4 near both sides push one transmission gear 10 to rotate. Then, the two transmission gears 10 drive the two clamping plates 12 to rotate through the rotating rod 9. Thus, the two push plates 11 cooperate with the two clamping plates 12 to clamp the part at multiple angles.

[0025] In a preferred embodiment, a guide rod 13 is slidably sleeved on the inner wall of the side plate 6, and the side of the guide rod 13 is connected to the side of the push plate 11. A spring 14 is fixedly connected to the side of the push plate 11, and the end of the spring 14 away from the push plate 11 is fixedly connected to the side of the side plate 6. Through the cooperation of the spring 14 and the guide rod 13, the outer edge of the guide rod 13 slides in the inner wall of the side plate 6, thereby further assisting the push plate 11 to move stably. With the addition of the spring 14, it is convenient to use the spring 14 to push the push plate 11 to move away from the side plate 6, thereby assisting the part to be removed from the clamp. When the part is removed from the clamp, the spring 14 pushes the push plate 11 to reset.

[0026] In a preferred embodiment, a transmission rod 16 is rotatably sleeved on the inner wall of the fixed frame 1, and a double-acting screw 15 is installed on the side of the transmission rod 16. The outer edge of the double-acting screw 15 is threadedly connected to the inner wall of the slider 24. The end of the transmission rod 16 away from the double-acting screw 15 passes through the inner wall of the fixed frame 1 and is connected to a positioning gear 17. An adjusting rod 22 is installed on the side of the positioning gear 17. A placement frame 23 is installed on the inner wall of the fixed frame 1, and the inner wall of the placement frame 23 is rotatably sleeved with the outer edge of the double-acting screw 15. Through the cooperation of the transmission rod 16 and the double-acting screw 15, the adjusting rod 22 drives the positioning gear 17 to rotate, and the positioning gear 17 drives the transmission rod 16 and the double-acting screw 15 to rotate coaxially. Then, the external threads of the double-acting screw 15 near both ends push the slider 24 to move, thereby using the slider 24 to drive the side plate 6 to move.

[0027] In a preferred embodiment, a positioning frame 18 is installed on the side of the fixed frame 1, and a positioning tooth plate 20 is slidably connected to the inner wall of the positioning frame 18. The protruding teeth on the top of the positioning tooth plate 20 mesh with the protruding teeth on the outer edge of the positioning gear 17. Through the cooperation between the positioning tooth plate 20 and the positioning gear 17, the side of the positioning tooth plate 20 slides in the inner wall of the positioning frame 18, thereby assisting the protruding teeth of the positioning tooth plate 20 to mesh with the protruding teeth of the positioning gear 17, and thus assisting the positioning gear 17 to perform limiting.

[0028] In a preferred embodiment, a second spring 19 is fixedly connected to the bottom of the positioning tooth plate 20, and the bottom of the second spring 19 is fixedly connected to the bottom of the inner wall of the positioning frame 18. A pull plate 21 is installed on the side of the positioning tooth plate 20, and the side of the pull plate 21 is slidably connected to the inner wall of the positioning frame 18. Through the cooperation of the second spring 19 and the positioning tooth plate 20, the second spring 19 pushes the positioning tooth plate 20 upward in the inner wall of the positioning frame 18, thereby assisting the convex teeth of the positioning tooth plate 20 to stably mesh and limit the positioning of the convex teeth of the positioning gear 17. With the addition of the pull plate 21, the positioning tooth plate 20 can be easily pulled by the pull plate 21.

[0029] Working principle: When the device is in use, the pull plate 21 drives the positioning tooth plate 20 to move downward, assisting the separation of the convex teeth of the positioning tooth plate 20 from the convex teeth of the positioning gear 17. The adjusting rod 22 drives the positioning gear 17 to rotate, thereby driving the bidirectional lead screw 15 synchronously. The bidirectional lead screw 15 then drives the two sliders 24 to move towards each other, thereby driving the push plate 11 to move. The side of the push plate 11 is in close contact with the side of the part, and the side plate 6 continues to move, thereby driving the push plate 11 to move. The outer edge of the guide rod 13 slides on the inner wall of the side plate 6, and drives the transmission gear 10 to rotate on the inner wall of the U-shaped inner tooth plate 4. The transmission gear 10 drives the clamping plate 12 to rotate through the rotating rod 9. The clamping plate 12, in conjunction with the push plate 11, clamps and limits the part at multiple angles. Then the pull plate 21 is released, and the spring 2 19 pushes the positioning tooth plate 20 to move upward on the inner wall of the positioning frame 18. This helps the protruding teeth of the positioning tooth plate 20 to mesh with the positioning gear 17, thereby helping the two side plates 6 to limit the position.

[0030] 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 technical solutions and their equivalents.

Claims

1. A clamping device for a roughness tester, comprising a fixed frame (1), characterized in that: The bottom of the fixed frame (1) is fitted with a perforated plate (2). The inner wall of the fixed frame (1) is slidably connected to two sliders (24). The top of the two sliders (24) is fitted with a base plate (3). The inner wall of the top of the base plate (3) is fitted with a U-shaped internal toothed plate (4). The top of the U-shaped internal toothed plate (4) is fitted with a top plate (5). The bottom of the top plate (5) is connected to the top of the base plate (3). The side of the top plate (5) is fitted with a side plate (6). The top of the top plate (5) is provided with a sliding groove (7). The inner wall of the sliding groove (7) is slidably connected to a square plate (8). The inner wall of the square plate (8) is rotatably fitted with a rotating rod (9). The bottom of the rotating rod (9) is fitted with a transmission gear (10). The outer edge of the rotating rod (9) is rotatably fitted with a push plate (11).

2. The clamping device for a roughness tester according to claim 1, characterized in that: The protruding teeth on the inner wall of the U-shaped inner tooth plate (4) mesh with the protruding teeth on the outer edge of the transmission gear (10), and the outer edge of the rotating rod (9) is fixedly sleeved with a clamping plate (12).

3. The clamping device for a roughness tester according to claim 1, characterized in that: The inner wall of the side plate (6) is slidably sleeved with a guide rod (13), and the side of the guide rod (13) is connected to the side of the push plate (11). The side of the push plate (11) is fixedly connected with a spring (14), and the end of the spring (14) away from the push plate (11) is fixedly connected to the side of the side plate (6).

4. The clamping device for a roughness tester according to claim 1, characterized in that: The inner wall of the fixed frame (1) is rotatably sleeved with a transmission rod (16), and a double-acting screw (15) is installed on the side of the transmission rod (16). The outer edge of the double-acting screw (15) is threadedly connected to the inner wall of the slider (24). The end of the transmission rod (16) away from the double-acting screw (15) passes through the inner wall of the fixed frame (1) and is connected to a positioning gear (17). An adjusting rod (22) is installed on the side of the positioning gear (17). A placement frame (23) is installed on the inner wall of the fixed frame (1), and the inner wall of the placement frame (23) is rotatably sleeved with the outer edge of the double-acting screw (15).

5. The clamping device for a roughness tester according to claim 1, characterized in that: A positioning frame (18) is installed on the side of the fixed frame (1). A positioning tooth plate (20) is slidably connected to the inner wall of the positioning frame (18), and the protruding teeth on the top of the positioning tooth plate (20) mesh with the protruding teeth on the outer edge of the positioning gear (17).

6. The clamping device for a roughness tester according to claim 5, characterized in that: The bottom of the positioning tooth plate (20) is fixedly connected to a spring two (19), and the bottom of the spring two (19) is fixedly connected to the bottom of the inner wall of the positioning frame (18). A pull plate (21) is installed on the side of the positioning tooth plate (20), and the side of the pull plate (21) is slidably connected to the inner wall of the positioning frame (18).

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