A cylinder surface treatment integrated positioning clamp
By designing an integrated positioning fixture for cylinder surface treatment, and using a combination of clamping blocks and servo motor drive, the inner and outer surfaces of the cylinder are uniformly fixed, solving the problem of different fixtures required for cylinder surface treatment and improving operational convenience and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ZHONGWEI THERMAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-09
AI Technical Summary
Existing cylinder surface treatments require different fixtures, which leads to inconvenient operation and high costs, making it difficult to achieve uniform and efficient fixation of internal and external surface treatments.
An integrated positioning fixture for cylinder surface treatment was designed. It adopts a combination of a first clamping block and a second clamping block. The inner and outer surfaces of the cylinder are uniformly fixed by a drive component. Combined with the drive of a servo motor and a bidirectional screw, the synchronous movement and position adjustment of the clamping seat are realized.
This achieves unified and fixed surface treatment of the cylinder barrel, reduces obstruction, improves the convenience and efficiency of operation, and reduces the complexity and cost of fixture preparation.
Smart Images
Figure CN224334323U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cylinder clamping technology, and in particular relates to an integrated positioning clamping fixture for cylinder surface treatment. Background Technology
[0002] Cylinders are core components of hydraulic systems, engines, and other equipment, and their surface quality directly affects sealing performance, corrosion resistance, and service life. Surface treatment (such as electroplating, spraying, honing, and anodizing) is a critical process in cylinder manufacturing. High-precision positioning fixtures are required to fix the cylinders and ensure uniformity, consistency, and efficiency of the treatment. Cylinder surface treatment includes protective surface treatment and functional surface treatment. Protective surface treatment is used to improve corrosion resistance and wear resistance, while functional surface treatment is used to enhance specific properties.
[0003] The cylinder surface includes an inner surface and an outer surface. When treating the inner surface, the outer clamping method is mostly used, such as the combination of V-blocks and elastic pressure rollers for fixing. When treating the outer surface, a three-jaw internal expansion mechanism is used to tighten and fix it from the inside of the cylinder. Although this can greatly reduce the obstruction of the cylinder surface treatment by the clamping, different clamping fixtures need to be used as needed, and a large number of fixtures need to be prepared in advance, which is inconvenient and costly. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes an integrated positioning fixture for cylinder surface treatment, which can more accurately solve the problems described above.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model proposes an integrated positioning fixture for cylinder surface treatment, including a base plate, a driving assembly on the base plate, two clamping seats mounted on the driving assembly, a first clamping block on the clamping seat, a triangular slot on the first clamping block, a second clamping block on the clamping seat, one side of the second clamping block being an arc surface, and the first clamping block and the second clamping block being elastic.
[0007] In one example, the first clamping blocks on the two clamping seats are arranged opposite to each other, and the arc surface on the second clamping block is opposite to the direction of the triangular slot on the first clamping block.
[0008] In one example, the drive assembly includes mounting bases, two of which are fixedly connected to a base plate. Two guide rods are fixedly connected between the mounting bases, and a bidirectional screw is disposed between the two guide rods. The bidirectional screw is rotatably connected to the two mounting bases and threadedly connected to two clamping seats. The two guide rods are slidably connected to the clamping seats. A servo motor is installed in one of the mounting bases, and the spindle of the servo motor is fixedly connected to the bidirectional screw.
[0009] In one example, the clamping seat includes a sliding block that is slidably connected to a guide rod. A bidirectional screw passes through the sliding block and is threadedly connected to it. A fixing block is fixedly connected to the upper surface of the sliding block. A square groove is provided on one side of the fixing block. A through hole is provided on the side wall of the square groove. Sliding rods are slidably connected in the two through holes. One end of the two sliding rods is fixedly connected to a placement plate, which is located between the two clamping seats.
[0010] In one example, one end of all the sliding rods is fixedly connected to a limiting block, and a spring is fixedly connected between the limiting block and the fixed block.
[0011] In one example, the upper surfaces of the two fixed blocks are fixedly connected to a slide rail, a first screw is rotatably connected to the slide rail, a slider is slidably connected to the slide rail, the first screw passes through the slider and is threadedly connected to the slider, a mounting plate is fixedly connected to the upper surface of the slider, and the first clamping block and the second clamping block are mounted on the mounting plate.
[0012] In one example, the mounting plate has a first vertical mounting surface and a second vertical mounting surface, the height of the first vertical mounting surface is greater than that of the second vertical mounting surface, the first clamping block is fixed on the first vertical mounting surface, and the second clamping block is mounted on the second vertical mounting surface.
[0013] The integrated positioning fixture for cylinder surface treatment proposed in this utility model can bring the following beneficial effects:
[0014] Firstly, by setting a first clamping block and a second clamping block, when the cylinder is fixed by pushing against the inner wall, the drive assembly drives the two clamping seats to move closer to each other, so that the cylinder can be sleeved on the outside of the two second clamping blocks. At this time, both the first clamping block and the second clamping block are located inside the cylinder. Then, the drive assembly drives the two clamping seats to move, so that the two second clamping blocks are pressed against the inner wall of the cylinder to fix the cylinder. When it is necessary to process the inner surface of the cylinder, the cylinder is first placed with the opening facing upward between the two clamping seats. Then, the drive assembly drives the clamping seats to move closer to each other, so that the first clamping block contacts the outer wall of the cylinder from both sides. The triangular slot on the first clamping block holds the cylinder and fixes the cylinder. This achieves the effect of fixing the cylinder from both the outside and inside, which facilitates the processing of the outer and inner surfaces of the cylinder, such as grinding and polishing, reducing obstruction during processing. The structure is simple and easy to use.
[0015] Secondly, by setting up placement plates, the two placement plates contact each other under the action of springs to place the cylinder. When it is necessary to clamp the outer side of the cylinder, the cylinder is first placed on the two placement plates, and then the bidirectional screw controls the sliding block to move closer, so that the two first clamping blocks press the cylinder in the middle to fix it. This eliminates the need for workers to hold and wait for the cylinder to be pressed and fixed, making it more labor-saving. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0018] Figure 3 This is a schematic diagram of the clamping base of this utility model.
[0019] Figure 4 This is a schematic diagram of the mounting plate of this utility model.
[0020] In the diagram: 1. Base plate; 2. Drive assembly; 21. Mounting base; 22. Guide rod; 23. Bidirectional screw; 3. Clamping base; 31. Sliding block; 32. Fixing block; 33. Sliding rod; 34. Placement plate; 4. First clamping block; 5. Second clamping block; 6. Limiting block; 7. Spring; 8. Slide rail; 9. First screw; 10. Slider; 11. Mounting plate. Detailed Implementation
[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0022] like Figures 1-4As shown, this utility model provides an integrated positioning fixture for cylinder surface treatment, including a base plate 1, a drive assembly 2 on the base plate 1, and two clamping seats 3 mounted on the drive assembly 2. Each clamping seat 3 has a first clamping block 4 with a triangular groove, and a second clamping block 5 on the clamping seat 3. One side of the second clamping block 5 is curved. The first and second clamping blocks 4 are elastic. The first clamping blocks 4 on the two clamping seats 3 are positioned opposite to each other. The curved surface of the second clamping block 5 is opposite in direction to the triangular groove on the first clamping block 4. Since the cylinder cross-section is generally circular, when treating the outer surface of the cylinder, to reduce obstruction to the outer surface, the inner wall of the cylinder can be used for pushing and fixing. In this case, the drive assembly 2 drives the two clamping seats 3 to move closer to each other, bringing the first clamping block 4 and the second clamping block 5 on the clamping seats 3 closer together, with the first clamping blocks 4 facing each other. Two second clamping blocks 5 are located on the outer side with their arc surfaces facing outwards. At this time, the cylinder can be sleeved on the outside of the two second clamping blocks 5. Both the first clamping block 4 and the second clamping block 5 are located inside the cylinder. Then, the drive assembly 2 drives the two clamping seats 3 to move, so that the two second clamping blocks 5 are pressed against the inner wall of the cylinder to fix the cylinder. When it is necessary to process the inner surface of the cylinder, the cylinder is first placed with the opening facing upwards between the two clamping seats 3. Then, the drive assembly 2 drives the clamping seats 3 to move closer to each other, so that the first clamping block 4 contacts the outer wall of the cylinder from both sides. The triangular slot on the first clamping block 4 locks the cylinder and fixes it. By setting the first clamping block 4, the second clamping block 5 and the clamping seats 3, the effect of fixing the cylinder from the outside and inside is achieved, which facilitates the processing of the outer and inner surfaces of the cylinder, such as grinding and polishing, reducing obstruction during processing. The structure is simple and easy to use.
[0023] like Figure 1 and Figure 2 As shown, the drive assembly 2 includes a mounting base 21. Two mounting bases 21 are fixedly connected to the base plate 1. Two guide rods 22 are fixedly connected between the mounting bases 21. A bidirectional screw 23 is provided between the two guide rods 22. The bidirectional screw 23 is rotatably connected to the two mounting bases 21 and threadedly connected to the two clamping seats 3. The two guide rods 22 are slidably connected to the clamping seats 3. A servo motor is installed in one of the mounting bases 21. The spindle of the servo motor is fixedly connected to the bidirectional screw 23. In use, the guide rods 22 provide sliding guidance for the clamping seats 3. The bidirectional screw 23 controls the two clamping seats 3 to move synchronously in opposite directions to achieve approach and distance. The servo motor provides power for the movement of the clamping seats 3.
[0024] like Figure 2 and Figure 3As shown, the clamping seat 3 includes a sliding block 31, which is slidably connected to the guide rod 22. A bidirectional screw 23 passes through the sliding block 31 and is threadedly connected to it. A fixing block 32 is fixedly connected to the upper surface of the sliding block 31. A square groove is provided on one side of the fixing block 32, and a through hole is provided on the side wall of the square groove. Sliding rods 33 are slidably connected in the two through holes. One end of the two sliding rods 33 is fixedly connected to a placement plate 34, which is located between the two clamping seats 3. One end of all the sliding rods 33 is fixedly connected to a limiting block 6. A spring 7 is fixedly connected between the limiting block 6 and the fixing block 32. The two placement plates 34 contact each other under the action of the spring 7 and are used to place the cylinder. When it is necessary to clamp the outer side of the cylinder, the cylinder is first placed on the two placement plates 34. Then, the bidirectional screw 23 controls the sliding block 31 to move closer, so that the two first clamping blocks 4 press the cylinder in the middle for fixing. This eliminates the need for the operator to hold and wait for the cylinder to be pressed and fixed, making it more labor-saving.
[0025] like Figure 3 and Figure 4 As shown, the upper surfaces of the two fixed blocks 32 are fixedly connected to the slide rail 8, the slide rail 8 is rotatably connected to the first screw 9, the slide rail 8 is slidably connected to the slider 10, the first screw 9 passes through the slider 10 and is threadedly connected to the slider 10, the upper surface of the slider 10 is fixedly connected to the mounting plate 11, the first clamping block 4 and the second clamping block 5 are mounted on the mounting plate 11, and the position of the mounting plate 11 and the first clamping block 4 and the second clamping block 5 can be finely adjusted by rotating the first screw 9.
[0026] like Figure 3 and Figure 4 As shown, the mounting plate 11 has a first vertical mounting surface and a second vertical mounting surface. The height of the first vertical mounting surface is greater than that of the second vertical mounting surface. The first clamping block 4 is fixed on the first vertical mounting surface, and the second clamping block 5 is mounted on the second vertical mounting surface. When the inner wall of the cylinder is pushed and fixed, the bidirectional screw 23 rotates, causing the two sliding blocks 31 to slide closer and fit together. At this time, the placement plate 34 enters the square groove on one side of the fixing block 32 to avoid it. Then, the cylinder is placed directly on the two mounting plates 11, covering the two second clamping blocks 5 on the inside. Then, the bidirectional screw 23 reverses, the two sliding blocks 31 slide away, and the second clamping blocks 5 abut against the inner side of the cylinder, pulling and fixing the cylinder.
[0027] Working principle: When the cylinder is fixed by pushing against the inner wall, the servo motor drives the bidirectional screw 23 to rotate, causing the two sliding blocks 31 to slide closer and fit together. At this time, the placement plate 34 enters the square groove on one side of the fixing block 32 to avoid it. Then, the cylinder is placed directly on the two mounting plates 11, and the two second clamping blocks 5 are covered inside. Then, the bidirectional screw 23 reverses, the two sliding blocks 31 slide away, and the second clamping blocks 5 press against the inner side of the cylinder, pulling and fixing the cylinder. When the inner surface of the cylinder needs to be processed, the cylinder is first placed with the opening facing upward on the placement plate 34 between the two clamping seats 3. The bidirectional screw 23 controls the sliding blocks 31 to move closer, so that the two first clamping blocks 4 press the cylinder in the middle to fix it.
Claims
1. An integrated positioning fixture for cylinder surface treatment, characterized in that, Includes a base plate (1), on which a drive assembly (2) is provided, and on which two clamping seats (3) are installed, on which a first clamping block (4) is provided, the first clamping block (4) is provided with a triangular slot, and on which a second clamping block (5) is provided, one side of the second clamping block (5) is an arc surface, and the first clamping block (4) and the second clamping block (5) are elastic.
2. The integrated positioning fixture for cylinder surface treatment according to claim 1, characterized in that, The first clamping blocks (4) on the two clamping seats (3) are arranged opposite to each other, and the arc surface on the second clamping block (5) is opposite to the direction of the triangular slot on the first clamping block (4).
3. The integrated positioning fixture for cylinder surface treatment according to claim 1, characterized in that, The drive assembly (2) includes a mounting base (21), two mounting bases (21) are fixedly connected to the base plate (1), two guide rods (22) are fixedly connected between the mounting bases (21), a bidirectional screw (23) is provided between the two guide rods (22), the bidirectional screw (23) is rotatably connected to the two mounting bases (21), the bidirectional screw (23) is threadedly connected to the two clamping seats (3), the two guide rods (22) are slidably connected to the clamping seats (3), and a servo motor is installed in one of the mounting bases (21), the spindle of the servo motor is fixedly connected to the bidirectional screw (23).
4. The integrated positioning fixture for cylinder surface treatment according to claim 3, characterized in that, The clamping seat (3) includes a sliding block (31), which is slidably connected to the guide rod (22). The bidirectional screw (23) passes through the sliding block (31) and is threadedly connected to the sliding block (31). A fixing block (32) is fixedly connected to the upper surface of the sliding block (31). A square groove is provided on one side of the fixing block (32). A through hole is provided on the side wall of the square groove. Sliding rods (33) are slidably connected in the two through holes. One end of the two sliding rods (33) is fixedly connected to a placement plate (34). The placement plate (34) is located between the two clamping seats (3).
5. The integrated positioning fixture for cylinder surface treatment according to claim 4, characterized in that, One end of all the sliding rods (33) is fixedly connected to a limiting block (6), and a spring (7) is fixedly connected between the limiting block (6) and the fixing block (32).
6. The integrated positioning fixture for cylinder surface treatment according to claim 4, characterized in that, The upper surfaces of the two fixed blocks (32) are fixedly connected to slide rails (8), a first screw (9) is rotatably connected to the slide rails (8), a slider (10) is slidably connected to the slide rails (8), the first screw (9) passes through the slider (10) and is threadedly connected to the slider (10), the upper surface of the slider (10) is fixedly connected to a mounting plate (11), and the first clamping block (4) and the second clamping block (5) are mounted on the mounting plate (11).
7. The integrated positioning fixture for cylinder surface treatment according to claim 6, characterized in that, The mounting plate (11) is provided with a first vertical mounting surface and a second vertical mounting surface. The height of the first vertical mounting surface is greater than that of the second vertical mounting surface. The first clamping block (4) is fixed on the first vertical mounting surface, and the second clamping block (5) is mounted on the second vertical mounting surface.