Positioning and clamping device for valve machining

Abstract

This application relates to a positioning and clamping device for valve processing, comprising a support platform, a support frame fixedly connected to the side of the support platform, a cylinder fixedly connected to the top of the support frame, a pressure plate fixedly connected to the extended end of the cylinder, and limit frames fixedly connected to the four corners of the top of the support platform. Lower fixing components are slidably connected to the inner walls of the limit frames. This application utilizes the valve's own weight to trigger an automated clamping mechanism. When the valve is placed, the lower fixing components move downwards along the limit frames, driving the toothed plate drive gear to rotate. This rotation, via a synchronous belt, causes the lower valve fixing plates on both sides to adaptively clamp the bottom of the valve, achieving precise positioning. The cylinder then drives the pressure plate to press down, forming a synchronous clamping effect, ensuring uniform force and preventing processing deformation. The design employs gravity triggering and mechanical linkage to achieve fully automatic positioning and clamping, significantly reducing manual intervention and making it suitable for batch processing needs.

Description

Technical Field

[0001] This application relates to the technical field of valve processing, and in particular to a positioning and clamping device for valve processing. Background Technology

[0002] In the field of valve processing, traditional clamping and positioning devices typically employ manual adjustment or unidirectional clamping, which suffers from insufficient positioning accuracy and uneven clamping force. In existing technologies, most fixtures require repeated manual adjustments to adapt to valves of different specifications, which is not only cumbersome and inefficient, but also prone to valve displacement or deformation due to unstable clamping during high-precision machining processes such as drilling and milling, affecting machining quality. Furthermore, conventional fixtures lack automatic adjustment functions, making it difficult to achieve rapid positioning and synchronous clamping, thus failing to meet the needs of modern mass production. Therefore, there is an urgent need for a positioning device that can automatically adapt to valve dimensions and achieve stable, synchronous clamping from top to bottom to improve machining accuracy and production efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this application provides a positioning and clamping device for valve processing.

[0004] This application provides a positioning and clamping device for valve processing, which adopts the following technical solution: A positioning and clamping device for valve processing includes: a support platform, a support frame fixedly connected to the side of the support platform, a cylinder fixedly connected to the top of the support frame, a pressure plate fixedly connected to the extended end of the cylinder, and limit frames fixedly connected to the four corners of the top of the support platform, with lower fixing components slidably connected to the inner wall of the limit frames.

[0005] As a preferred technical solution of this application, the lower fixing component includes a first support plate, with sliders fixedly connected to the front and rear sides of the left and right sides of the first support plate, the surfaces of the four sliders being slidably connected to the inner walls of the four limiting frames, second support plates fixedly connected to the left and right sides of the bottom of the support platform, a third support plate fixedly connected to the bottom of the support platform, a rotating rod rotatably connected to the inner wall of the third support plate, a bidirectional lead screw rotatably connected to the inner wall of the second support plate, and the first support plate being located at the top of the support platform.

[0006] As a preferred technical solution of this application, the left and right sides of the surface of the bidirectional lead screw are threaded with movable plates, the surface of the movable plates is slidably connected with limit sleeves, the top of the limit sleeves is fixedly connected with lower valve fixing plates, there are two lower valve fixing plates, the two lower valve fixing plates are symmetrically distributed from left to right, and the surface of the limit sleeves is slidably connected with the inner wall of the first support plate.

[0007] As a preferred technical solution of this application, a toothed plate is fixedly connected to the right side of the first support plate, and a gear is fixedly connected to the surface of the rotating rod, the gear meshing with the toothed plate.

[0008] As a preferred technical solution of this application, both the right end of the bidirectional lead screw and the right end of the rotating rod are fixedly connected to a synchronous pulley, and a synchronous belt is sleeved on the surface of the synchronous pulley.

[0009] As a preferred technical solution of this application, tension springs are fixedly connected to both the front and rear sides of the bottom of the first support plate, and the top of the tension springs is fixedly connected to the bottom of the first support plate.

[0010] In summary, this application includes at least one of the following beneficial technical effects of a positioning and clamping device for valve processing: This application utilizes a valve-weight-triggered automated clamping mechanism. When the valve is placed, the lower fixed component moves downward along the limit frame, driving the toothed plate drive gear to rotate. This rotation, via a synchronous belt, causes the two lower valve fixing plates to adaptively clamp the bottom of the valve, achieving precise positioning. Subsequently, a cylinder drives the pressure plate to press down, forming a synchronous clamping mechanism that ensures uniform force and prevents processing deformation. The design, employing gravity triggering and mechanical linkage, achieves fully automatic positioning and clamping, significantly reducing manual intervention and making it suitable for batch processing needs. The precise fit between the bidirectional lead screw and the limit sleeve can adapt to valves of different specifications, ensuring stable and reliable clamping. The dual stabilizing structure of the tension spring and the limit frame effectively suppresses processing vibration, ensuring that the valve does not shift during high-precision processing. The overall structure is compact and reasonable, easy to operate, and improves valve processing efficiency and quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This application Figure 1 Schematic diagram of a local structure in the middle; Figure 3 This application Figure 2 Schematic diagram of the middle and lower valve fixing plate structure.

[0012] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. Support frame; 3. Cylinder; 4. Pressure plate; 5. Limiting frame; 6. Lower fixed component; 7. Two-way lead screw; 8. Second support plate; 9. Third support plate; 10. Synchronous pulley; 11. Synchronous belt; 12. Rotating rod; 13. Gear; 601. First support plate; 602. Lower valve fixing plate; 603. Gear plate; 604. Slider; 605. Tension spring; 606. Moving plate; 607. Limiting sleeve. Detailed Implementation

[0013] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0014] See Figure 1-3 A positioning and clamping device for valve processing includes: a support platform 1, a support frame 2 fixedly connected to the side of the support platform 1, a cylinder 3 fixedly connected to the top of the support frame 2, a pressure plate 4 fixedly connected to the extended end of the cylinder 3, and limit frames 5 fixedly connected to the four corners of the top of the support platform 1, with a lower fixing component 6 slidably connected to the inner wall of the limit frame 5. After the bottom of the valve is clamped by the lower valve fixing plate 602, the cylinder 3 is activated, pushing the pressure plate 4 downward to press the top of the valve. Since the bottom of the valve has been pre-fixed by the lower fixing component 6, the pressure of the cylinder 3 is evenly applied to the valve, avoiding deformation or displacement caused by unilateral force. The cooperation between the pressure plate 4 and the lower valve fixing plate 602 forms a synchronous clamping from top to bottom, ensuring that the valve remains absolutely stable during the processing. It is suitable for high-precision processing operations such as drilling and milling.

[0015] The lower fixed component 6 includes a first support plate 601. Slider 604s are fixedly connected to the left and right sides and the front and rear sides of the first support plate 601. The surfaces of the four sliders 604 are slidably connected to the inner walls of the four limiting frames 5. Second support plates 8 are fixedly connected to the left and right sides of the bottom of the support platform 1. A third support plate 9 is fixedly connected to the bottom of the support platform 1. A rotating rod 12 is rotatably connected to the inner wall of the third support plate 9. A bidirectional lead screw 7 is rotatably connected to the inner wall of the second support plate 8. The first support plate 601 is located at the top of the support platform 1. Gear 13, toothed plate 603, synchronous belt 11 and double-acting screw 7 form a linkage mechanism, which automates the positioning, clamping and fixing process of the valve. When the valve is placed, its gravity triggers the movement of the entire mechanism to automatically adjust the clamping position, while cylinder 3 provides additional clamping force. This design reduces manual adjustment time and improves processing efficiency, and is especially suitable for batch valve processing. At the same time, the cooperation of limit frame 5 and slider 604 ensures that the lower fixed part moves smoothly in the vertical direction, avoids jamming, and makes the entire clamping process smooth and reliable.

[0016] The left and right sides of the surface of the bidirectional lead screw 7 are threaded with movable plates 606. The surface of the movable plates 606 is slidably connected with limit sleeves 607. The top of the limit sleeves 607 is fixedly connected with a lower valve fixing plate 602. There are two lower valve fixing plates 602, which are symmetrically distributed on the left and right. The surface of the limit sleeves 607 is slidably connected with the inner wall of the first support plate 601. Initial positioning is achieved by the valve's own weight. When the valve is placed on the first support plate 601, its weight causes the lower fixed component 6 to slide downward along the limit frame 5, driving the first support plate 601 to descend. At the same time, the toothed plate 603 meshes with the gear 13, causing the rotating rod 12 to rotate. Since the rotating rod 12 is linked to the double-acting screw 7 through the synchronous belt 11, the double-acting screw 7 rotates accordingly, pushing the moving plates 606 on both sides to move closer to the center, so that the lower valve fixing plate 602 automatically adjusts its position and clamps the bottom of the valve. This process does not require manual intervention and can be completed by relying solely on the valve's own weight, ensuring that the valve remains stable before processing.

[0017] A toothed plate 603 is fixedly connected to the right side of the first support plate 601, and a gear 13 is fixedly connected to the surface of the rotating rod 12, with the gear 13 meshing with the toothed plate 603; a synchronous pulley 10 is fixedly connected to the right end of the bidirectional lead screw 7 and the right end of the rotating rod 12, and a synchronous belt 11 is sleeved on the surface of the synchronous pulley 10; a tension spring 605 is fixedly connected to both the front and rear sides of the bottom of the first support plate 601, and the top of the tension spring 605 is fixedly connected to the bottom of the first support plate 601. The rotation of the bidirectional lead screw 7 drives the moving plate 606 to slide along the limiting sleeve 607, causing the lower valve fixing plate 602 to move synchronously to accommodate valves of different sizes. The sliding connection between the limiting sleeve 607 and the first support plate 601 ensures that the moving plate 606 moves stably in the horizontal direction and avoids deviation. When the valve is clamped, the elastic force of the tension spring 605 provides auxiliary support to prevent the lower fixing component 6 from loosening due to vibration or external force. This structure not only improves the clamping accuracy but also adapts to the processing requirements of valves of different specifications, ensuring that the valve will not deviate due to uneven force during processing.

[0018] This application utilizes the valve's own gravity for initial positioning. When the valve is placed on the first support plate 601, its weight causes the lower fixing component 6 to slide downwards along the limiting frame 5, pulling the first support plate 601 down. Simultaneously, the toothed plate 603 meshes with the gear 13, causing the rotating rod 12 to rotate. Since the rotating rod 12 is linked to the bidirectional lead screw 7 via the synchronous belt 11, the rotation of the bidirectional lead screw 7 drives the moving plate 606 to slide along the limiting sleeve 607, causing the lower valve fixing plate 602 to move synchronously to accommodate valves of different sizes. The sliding connection between the limiting sleeve 607 and the first support plate 601 ensures that the moving plate 606 moves stably in the horizontal direction, preventing deviation. After the valve is clamped, the elastic force of the tension spring 605 provides auxiliary support, preventing the lower fixing component 6 from loosening due to vibration or external force. This structure not only improves clamping accuracy but also adapts to the processing requirements of valves of different specifications, ensuring that the valve will not shift due to uneven force during processing. The bottom of the valve is fixed by the lower valve... After the fixing plate 602 clamps, the cylinder 3 starts, pushing the pressure plate 4 downward to press the top of the valve. Since the bottom of the valve is pre-fixed by the lower fixing component 6, the pressure of the cylinder 3 is evenly applied to the valve, avoiding deformation or displacement caused by unilateral force. The cooperation between the pressure plate 4 and the lower valve fixing plate 602 forms a synchronous clamping mechanism, ensuring that the valve remains absolutely stable during processing. This is suitable for high-precision machining processes such as drilling and milling. The gear 13, toothed plate 603, synchronous belt 11, and bidirectional lead screw 7 form a linkage mechanism, which automates the positioning, clamping, and fixing process of the valve. When the valve is placed, its gravity triggers the movement of the entire mechanism, automatically adjusting the clamping position, while the cylinder 3 provides additional clamping force. This design reduces manual adjustment time and improves processing efficiency, especially suitable for batch valve processing. At the same time, the cooperation between the limit frame 5 and the slider 604 ensures that the lower fixing component moves smoothly in the vertical direction, avoiding jamming, making the entire clamping process smooth and reliable.

[0019] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning and clamping device for valve machining, characterized by: include: A support platform (1) is fixedly connected to a support frame (2) on its side. A cylinder (3) is fixedly connected to the top of the support frame (2). A pressure plate (4) is fixedly connected to the extended end of the cylinder (3). Limit frames (5) are fixedly connected to the four corners of the top of the support platform (1). A lower fixing component (6) is slidably connected to the inner wall of the limit frame (5).

2. The positioning and clamping device for valve machining according to claim 1, characterized in that: The lower fixing component (6) includes a first support plate (601), and sliders (604) are fixedly connected to the front and rear sides of the left and right sides of the first support plate (601). The surfaces of the four sliders (604) are slidably connected to the inner walls of the four limiting frames (5). The left and right sides of the bottom of the support platform (1) are fixedly connected to a second support plate (8). The bottom of the support platform (1) is fixedly connected to a third support plate (9). The inner wall of the third support plate (9) is rotatably connected to a rotating rod (12). The inner wall of the second support plate (8) is rotatably connected to a bidirectional lead screw (7). The first support plate (601) is located at the top of the support platform (1).

3. The positioning and clamping device for valve machining according to claim 2, characterized in that: The two-way lead screw (7) has a movable plate (606) threadedly connected to both the left and right sides of its surface. A limit sleeve (607) is slidably connected to the surface of the movable plate (606). A lower valve fixing plate (602) is fixedly connected to the top of the limit sleeve (607). There are two lower valve fixing plates (602), which are symmetrically distributed on the left and right. The surface of the limit sleeve (607) is slidably connected to the inner wall of the first support plate (601).

4. The positioning and clamping device for valve machining according to claim 3, characterized in that: A toothed plate (603) is fixedly connected to the right side of the first support plate (601), and a gear (13) is fixedly connected to the surface of the rotating rod (12), and the gear (13) meshes with the toothed plate (603).

5. The positioning and clamping device for valve machining according to claim 3, characterized in that: The right end of the bidirectional lead screw (7) and the right end of the rotating rod (12) are both fixedly connected to a synchronous pulley (10), and a synchronous belt (11) is sleeved on the surface of the synchronous pulley (10).

6. The positioning and clamping device for valve machining according to claim 3, characterized in that: Tension springs (605) are fixedly connected to both the front and rear sides of the bottom of the first support plate (601), and the top of the tension springs (605) is fixedly connected to the bottom of the first support plate (601).

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