A kind of high pressure switching valve stator processing overturning adjusting clamp
Patent Information
- Application Number
- CN202521759354.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-08-19
AI Technical Summary
传统的加工夹具在对定子进行固定时，常存在以下问题：一方面，固定机构的通用性较差，往往只能适配特定尺寸的定子，当加工不同规格的定子时，需要更换夹具或对夹具进行复杂调整，不仅增加了工装准备时间，降低了生产效率，还可能因调整不当导致定子固定不稳固，在加工过程中出现位移或振动，进而影响加工精度；另一方面，角度调节功能不足，多数夹具仅能实现单一角度的固定，难以根据加工工序的需要灵活翻转定子，操作人员需要手动拆卸、翻转后再重新固定定子，不仅操作繁琐，劳动强度大，而且多次拆装容易导致定子定位误差累积，进一步影响加工质量，此外，在定子的翻转和加工过程中，由于机械传动或加工切削力的作用，定子可能会受到一定的冲击力，而传统夹具通常缺乏有效的缓冲防护机制，容易导致定子表面出现磕碰、划伤等损伤，甚至可能影响定子的结构完整性，降低产品合格率；因此，需对上述问题进行改进处理
[0010]与现有技术相比，本实用新型的有益效果是：本实用新型通过第二电机与定位夹的配合，便于带动第一连杆推动第二连杆带动定位夹张开或收缩，对不同尺寸的高压切换阀定子进行固定，提高了夹具的通用性和固定效果，进而能够实现对定子的稳固夹持功能；再通过第一电机、安装块和定位盘的配合，便于调整定子的加工角度，提高了加工操作的便捷性，进而能够实现多角度加工的功能；再通过弹簧和缓冲杆的配合，便于卡盘受外力时通过缓冲杆压缩弹簧，进而缓冲冲击力，提高了对定子的保护效果，进而能够实现缓冲防护的功能；最终解决了现有装置加工时固定不稳固、角度调节不便以及缺乏防护的问题。
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Figure CN224643365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of high-pressure switching valve stator machining tools, and in particular to a flip-adjusting fixture for high-pressure switching valve stator machining. Background Technology
[0002] In the field of industrial automation, high-pressure switching valves are key components in fluid control systems, and their performance directly affects the operational stability and safety of the entire system. The stator of the high-pressure switching valve, as the core component of the valve body, undertakes important functions such as sealing, guiding, and flow control. It has extremely high requirements for machining accuracy, such as strict control of dimensional tolerances, geometric tolerances, and surface roughness. During the machining process of the high-pressure switching valve stator, due to its often complex structure, it may involve the machining of multiple end faces, hole systems, and special curved surfaces. Therefore, it is necessary to frequently adjust the stator's posture and angle to meet the machining requirements of different processes. Traditional machining fixtures often present the following problems when fixing stators: Firstly, the fixing mechanism has poor versatility, often only adapting to stators of specific sizes. When machining stators of different specifications, it is necessary to change the fixture or make complex adjustments, which not only increases tooling preparation time and reduces production efficiency, but may also lead to unstable stator fixing due to improper adjustment, resulting in displacement or vibration during machining, thus affecting machining accuracy. Secondly, the angle adjustment function is insufficient. Most fixtures can only achieve fixing at a single angle, making it difficult to flexibly flip the stator according to the needs of the machining process. Operators need to manually disassemble, flip, and then refix the stator, which is not only cumbersome and labor-intensive, but also prone to accumulating stator positioning errors due to repeated disassembly and assembly, further affecting machining quality. In addition, during the flipping and machining process of the stator, due to the mechanical transmission or machining cutting forces, the stator may be subjected to a certain impact force, and traditional fixtures usually lack effective buffer protection mechanisms, which can easily lead to bumps, scratches, and other damage to the stator surface, and may even affect the structural integrity of the stator, reducing the product qualification rate. Therefore, the above problems need to be improved. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flip-adjustment fixture for machining high-pressure switching valve stators.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flip-adjusting fixture for machining the stator of a high-pressure switching valve, comprising an L-shaped mounting frame, two mounting plates mounted on the top front end face of the mounting frame, a mounting block hinged between the two mounting plates, a fixed shaft rotatably mounted on the front end of the mounting block, and a first motor mounted inside the mounting block, the output end of the first motor being connected to the center of the rear end face of the fixed shaft via a coupling, a conical groove being formed inside the fixed shaft, a fixing mechanism being installed inside the fixed shaft, and a positioning plate being fixedly connected to the rear end of the mounting block, a limit mechanism being mounted on the positioning plate, a buffer block being mounted at the lower end of the limit mechanism, and a buffer mechanism being installed inside the buffer block.
[0005] Preferably, the limiting mechanism includes a plurality of corresponding limiting holes that are equidistantly opened on one side of the mounting plate and the positioning plate, and a limiting rod is inserted into one of the limiting holes.
[0006] Preferably, the fixing mechanism includes a second motor installed inside the fixed shaft and a positioning block located at the front end of the fixed shaft. The output end of the second motor is equipped with a worm gear through a coupling. The upper end of the worm gear is engaged with a worm wheel. A lead screw is fixedly connected at the center of the worm wheel. A limit plate is threadedly connected to the middle of the lead screw, and one end of the lead screw is rotatably connected to the rear end face of the positioning block.
[0007] Preferably, a plurality of first connecting rods are hinged to the periphery of the front end face of the limiting plate, a second connecting rod is hinged to the other end of the first connecting rod, a positioning clamp is fixed to the other end of the second connecting rod, the positioning clamp is located on the periphery of the front end of the fixed shaft, and the limiting plate, the first connecting rod and the second connecting rod are all located in the conical sliding groove.
[0008] Preferably, the rear end face of the positioning block has an inclined section, and multiple ball bearings are installed on the inclined section, with the ball bearings abutting against the second connecting rod.
[0009] Preferably, the buffer mechanism includes a mounting groove inside the buffer block, a spring is installed in the mounting groove, a buffer rod is installed at the other end of the spring, the buffer rod is inserted into the buffer block, and a chuck is fixed to the rear end of the buffer rod.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the second motor and the positioning clamp, facilitates the driving of the first connecting rod to push the second connecting rod, thereby opening or closing the positioning clamp to fix high-pressure switching valve stators of different sizes. This improves the versatility and fixing effect of the clamp, thus enabling a stable clamping function for the stator. Furthermore, through the cooperation of the first motor, the mounting block, and the positioning plate, it is easy to adjust the processing angle of the stator, improving the convenience of processing operations and enabling multi-angle processing. Moreover, through the cooperation of the spring and the buffer rod, when the chuck is subjected to external force, the buffer rod compresses the spring, thereby buffering the impact force and improving the protection effect for the stator, thus enabling a buffer protection function. Ultimately, this solves the problems of unstable fixing, inconvenient angle adjustment, and lack of protection in existing devices during processing. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this utility model; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the device proposed in this utility model; Figure 3 This is a schematic cross-sectional view of the device proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the device proposed in this utility model; Figure 5 The present utility model proposes Figure 3 Enlarged schematic diagram of the structure at part A in the middle; Figure 6 The present utility model proposes Figure 3 Enlarged schematic diagram of the structure of part B in the middle; Figure 7 The present utility model proposes Figure 4 Enlarged schematic diagram of the structure at part C.
[0012] The numbers in the diagram are: 1. Mounting bracket; 2. Mounting plate; 3. Mounting block; 4. Fixed shaft; 5. Buffer block; 6. Limiting rod; 7. Positioning plate; 8. First motor; 9. Spring; 10. Positioning block; 11. Worm gear; 12. Worm wheel; 13. Lead screw; 14. Limiting plate; 15. First connecting rod; 16. Second connecting rod; 17. Positioning clamp; 18. Buffering rod. Detailed Implementation
[0013] 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.
[0014] Example: See Figures 1 to 7 This utility model discloses a flip-adjusting fixture for machining a high-pressure switching valve stator, comprising an L-shaped mounting frame 1 for easy mounting of mounting plates 2; two mounting plates 2 are mounted on the top front end face of the mounting frame 1, which facilitates the positioning of mounting blocks 3 in conjunction with a positioning disc 7; a mounting block 3 is hinged between the two mounting plates 2, which facilitates the mounting of a first motor 8; a fixed shaft 4 is rotatably mounted on the front end of the mounting block 3, which facilitates the mounting of a second motor; and the first motor 8 is installed inside the mounting block 3, which facilitates the driving of the fixed shaft 4 to rotate; the output end of the first motor 8 is connected to the center of the rear end face of the fixed shaft 4 via a coupling; the fixed shaft 4 has a conical groove inside and a fixing mechanism is installed inside; and the positioning disc 7 is fixedly connected to the rear end of the mounting block 3. The positioning plate 7 facilitates the installation of the mounting plate 2; a limiting mechanism is installed on the positioning plate 7, and a buffer block 5 is installed at the lower end of the limiting mechanism, which facilitates the installation of the spring 9; a buffer mechanism is installed inside the buffer block 5, and the limiting mechanism includes multiple limiting holes that are equidistantly opened on one side of the mounting plate 2 and the positioning plate 7, respectively, and a limiting rod 6 is inserted into one of the limiting holes, which facilitates the limiting of the rotation angle of the mounting block 3; the fixing mechanism includes a second motor installed inside the fixing shaft 4 and a positioning block 10 located at the front end of the fixing shaft 4, which facilitates the installation of the workpiece with the positioning clamp 17; a worm gear 11 is installed at the output end of the second motor through a coupling, and the worm wheel 12 and the worm gear 11 facilitate the second motor to drive the lead screw 13 and lock the lead screw 13; the worm gear 11 is meshed with the worm wheel 12 at the upper end.
[0015] In this invention, a lead screw 13 is fixedly connected to the center of the worm gear 12, which facilitates the movement of the limiting plate 14. The limiting plate 14 is threadedly connected to the middle of the lead screw 13, which facilitates the installation of the first connecting rod 15. One end of the lead screw 13 is rotatably connected to the rear end face of the positioning block 10. Multiple first connecting rods 15 are hinged to the periphery of the front end face of the limiting plate 14, which facilitates the installation of the second connecting rod 16. The other end of the first connecting rod 15 is hinged to the second connecting rod 16, and the other end of the second connecting rod 16 is fixedly connected to a positioning clamp 17, which facilitates the clamping of the workpiece from the inside out. The positioning clamp 17 is located on the front periphery of the fixed shaft 4, and the limiting plate 14, the first connecting rod 15 and the second connecting rod 16 are all located in the conical groove. The rear end face of the positioning block 10 has an inclined section, on which multiple balls are installed. The balls abut against the second connecting rod 16. The buffer mechanism includes an installation groove opened inside the buffer block 5. A spring 9 is installed in the installation groove. The spring 9 facilitates the buffering of the impact of the mounting block 3 and the fixed shaft 4 on the mounting frame 1 by cooperating with the buffer rod 18. The other end of the spring 9 is equipped with a buffer rod 18, which is inserted into the buffer block 5, and a chuck is fixed to the rear end of the buffer rod 18.
[0016] Working principle: When using this utility model, firstly, the device is powered on, then the workpiece is fitted onto the positioning block 10 and the positioning clamp 17. Then, the second motor is started, and the second motor drives the worm gear 11 to rotate the worm wheel 12. The worm wheel 12 drives the lead screw 13 to rotate. When the lead screw 13 rotates, it drives the limiting plate 14 to move. Then, with the cooperation of the first connecting rod 15 and the second connecting rod 16, the positioning clamp 17 moves outward and clamps the workpiece from the inside out, positioning the workpiece. The limiting rod 6 is pulled out, and the positioning plate 7 is rotated to a suitable angle and then the limiting rod 6 is inserted back. When the positioning plate 7 rotates, the weight of the workpiece will cause the workpiece to rotate rapidly and hit the mounting frame 1. At this time, the workpiece will hit the buffer rod 18. With the cooperation of the spring 9, the impact is buffered to avoid damage to the workpiece and the mounting frame 1. Then, the workpiece is processed. During the processing, the first motor 8 drives the fixed shaft 4 to rotate the workpiece, expanding the processing surface and improving the processing flexibility.
[0017] 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 flip-adjusting fixture for machining the stator of a high-pressure switching valve, comprising an L-shaped mounting bracket (1), characterized in that: The mounting bracket (1) has two mounting plates (2) mounted on its top front end face. A mounting block (3) is hinged between the two mounting plates (2). A fixed shaft (4) is rotatably mounted on the front end of the mounting block (3). A first motor (8) is installed inside the mounting block (3). The output end of the first motor (8) is connected to the center of the rear end face of the fixed shaft (4) through a coupling. A conical groove is opened inside the fixed shaft (4). A fixing mechanism is installed on the fixed shaft (4). A positioning plate (7) is fixedly connected to the rear end of the mounting block (3). A limit mechanism is installed on the positioning plate (7). A buffer block (5) is installed at the lower end of the limit mechanism. A buffer mechanism is installed inside the buffer block (5).
2. The flipping and adjusting fixture for machining a high-pressure switching valve stator according to claim 1, characterized in that: The limiting mechanism includes multiple limiting holes that are equidistantly opened on one side of the mounting plate (2) and the positioning plate (7), and a limiting rod (6) is inserted into one of the limiting holes.
3. The flipping and adjusting fixture for machining a high-pressure switching valve stator according to claim 1, characterized in that: The fixing mechanism includes a second motor installed inside the fixed shaft (4) and a positioning block (10) located at the front end of the fixed shaft (4). The output end of the second motor is equipped with a worm gear (11) through a coupling. The upper end of the worm gear (11) is meshed with a worm wheel (12). A lead screw (13) is fixedly connected at the center of the worm wheel (12). A limit plate (14) is threadedly connected to the middle part of the lead screw (13), and one end of the lead screw (13) is rotatably connected to the rear end face of the positioning block (10).
4. The flipping and adjusting fixture for machining a high-pressure switching valve stator according to claim 3, characterized in that: The front end of the limiting plate (14) is hinged with a plurality of first connecting rods (15), and the other end of the first connecting rod (15) is hinged with a second connecting rod (16). The other end of the second connecting rod (16) is fixed with a positioning clamp (17). The positioning clamp (17) is located on the front end of the fixed shaft (4), and the limiting plate (14), the first connecting rod (15) and the second connecting rod (16) are all located in the conical groove.
5. A flip-adjusting fixture for machining a high-pressure switching valve stator according to claim 4, characterized in that: The rear end face of the positioning block (10) has an inclined section, and multiple balls are installed on the inclined section. The balls abut against the second connecting rod (16).
6. The flipping and adjusting fixture for machining a high-pressure switching valve stator according to claim 1, characterized in that: The buffer mechanism includes an installation groove inside the buffer block (5), a spring (9) is installed in the installation groove, a buffer rod (18) is installed at the other end of the spring (9), the buffer rod (18) is inserted into the buffer block (5), and a chuck is fixed to the rear end of the buffer rod (18).