A machining fixture for an electric valve positioner

Abstract

The utility model provides a kind of processing fixture of electrical valve positioner, belong to spare and parts manufacturing and processing technical field, including operation platform, further include: support platform, fixedly connected in operation platform top wall middle section, for supporting workpiece;Two groups of opposite driving components, about operation platform central axis symmetry setting in operation platform inner side;Two groups of support platform, respectively setting on opposite driving component driving end, and by opposite driving component drive two groups of support platform to move oppositely;Slide rail, fixedly connected to the outer wall of two side support platform opposite side;Multiple first sliding block, slidingly connected to the outer wall of slide rail top portion;Clamping component, setting in first hydraulic rod top wall, for clamping and fixing workpiece;Auxiliary fixing component, setting in clamping component connecting end inner side.In the utility model, the clamping and fixing of all special-shaped workpieces can be realized, and frequent adjustment of fixture or replacement of parts is not required, so that it has stronger adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spare part manufacturing and processing, in particular to a processing fixture of an electrical valve positioner. BACKGROUND

[0002] The electrical valve positioner is used for accurately controlling the valve position and ensuring the stable operation of the system. With the development of automation technology, the accuracy and reliability of the positioner are continuously improved, so the efficient processing fixture design becomes crucial. The fixture not only needs to meet the accuracy requirements, but also needs to improve the production efficiency and adapt to the processing needs of different parts. With the progress of manufacturing technology, the fixture design gradually develops towards intelligence and flexibility to cope with complex production environments. Despite the challenges, the fixture design still needs to be continuously innovated to meet the needs of modern manufacturing.

[0003] After searching, the patent with patent number CN209812142U discloses a fixture device for processing electrical valve positioner, which comprises a screw pair with clockwise threaded section and counterclockwise threaded section, a mounting seat and an adjusting knob. The screw pair is limitedly installed in the mounting seat, and the upper end of the screw pair is screw-fastened with the adjusting knob. The clockwise threaded section and the counterclockwise threaded section of the screw pair are connected with each other, the clockwise threaded section is screwed with an upper positioning block, and the counterclockwise threaded section is screwed with a lower positioning block. The switching between the clamping cooperation and separation states of the upper positioning block and the lower positioning block can be realized by rotating the screw pair in different directions. The utility model can realize the rapid positioning and clamping of the electrical valve positioner parts to be processed, and the installation structure is simple and reliable, especially suitable for the processing of various parts of the electrical valve positioner. Although the above-mentioned patent can realize the detection function, there are still the following shortcomings in the use process: The two positioning blocks on both sides are directly driven by the bidirectional screw rod to clamp the workpiece. However, when encountering special-shaped workpieces, it may not be able to adapt. The shape of the special-shaped workpiece is irregular, which may cause the fixture to be unable to effectively clamp, thereby affecting the processing precision and the stability of the workpiece. In addition, in order to adapt to workpieces of different shapes, the fixture may need to be frequently adjusted or replaced, which reduces the production efficiency and increases the operation complexity and time cost.

[0004] Therefore, there is an urgent need for a processing fixture of an electrical valve positioner to solve the above problems. Utility model content

[0005] The utility model aims at providing a processing fixture of an electrical valve positioner to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned invention purpose, the utility model provides the following technical scheme: A machining fixture for an electric valve positioner includes an operating table, and further includes: The support platform is fixedly connected to the middle section of the top wall of the operating table and is used to support the workpiece. Two sets of opposing drive components are symmetrically arranged on the inner side of the control panel about the central axis of the control panel. Two sets of support platforms are respectively set on the driving end of the opposing drive component, and the opposing drive component drives the two sets of support platforms to move in opposite directions. The slide rail is fixedly connected to the outer wall of the opposite side of the two support platforms; Multiple first sliders are slidably connected to the top outer wall of the slide rail; A clamping assembly, located on the top wall of the first hydraulic rod, is used to clamp and fix the workpiece. An auxiliary fixing component is located inside the connecting end of the clamping component and is used to assist in fixing the outer side of the workpiece.

[0007] As a preferred technical solution of this application, the opposing drive assembly includes two bidirectional lead screws symmetrically rotatably connected to both sides of the inside of the operating table, and two motors symmetrically fixedly connected to the outer wall of the operating table about the central axis of the operating table. The output end of the motor is fixedly connected to one end of the bidirectional lead screw. Two threaded sleeves are symmetrically threaded about the midpoint on the outer side of the bidirectional lead screw, and the threaded sleeves are fixedly connected to the support platform.

[0008] As a preferred technical solution of this application, the clamping assembly includes a first hydraulic rod fixed to the outer wall of a support platform on one side. The output end of the first hydraulic rod is fixedly connected to a clamping arm fixed to the top wall of the first slider. A sliding groove is provided on the inner side of the middle section of the clamping arm. A support arm is slidably connected to the inner side of the end of the clamping arm away from the first hydraulic rod. A first fixing plate is fixedly connected to the outer end of the support arm. A first fixing bolt is internally threaded to the end of the support arm away from the first fixing plate. A first washer is slidably connected to the outer side of the top wall of the first fixing bolt.

[0009] As a preferred technical solution of this application, the auxiliary fixing component includes a second slider slidably connected to the inner side of the slide groove, a second hydraulic rod fixedly connected to the outer wall of the second slider, a second fixing plate fixedly connected to the output end of the second hydraulic rod through the second slider, a second fixing bolt threadedly connected to the inner side of the top of the second slider, and a second washer slidably connected to the outer side of the top wall of the second fixing bolt.

[0010] As a preferred technical solution of this application, the outer walls of the first fixing plate and the second fixing plate are provided with a rubber layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. By cooperating with the opposing drive assembly, clamping assembly, and auxiliary fixing assembly, all irregularly shaped workpieces can be clamped and fixed without frequent adjustment of the fixture or replacement of parts, making it more adaptable and able to handle various irregularly shaped workpieces, ensuring processing accuracy and stability, reducing time waste. At the same time, this design also reduces the risk of human error, enhances the stability of the production process, improves clamping accuracy, and reduces scrap rate. 2. By adjusting the extension length of the support arm components and the position of the auxiliary fixing components inside the slide groove components, the fixture can better adapt to the shape of various workpieces, enhancing its adaptability. It can handle workpieces of different shapes and sizes, ensuring processing accuracy and stability. Secondly, this adjustment optimizes the clamping stability of the fixture, ensuring that the workpiece is firmly positioned during processing and avoiding displacement or deformation caused by uneven clamping. In addition, the fixture can adapt to various workpieces more quickly, reducing the time for adjusting and changing parts and improving processing efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 This is a partial three-dimensional structural diagram of the first slider in this utility model; Figure 4 This is a cross-sectional structural diagram of the clamping arm in this utility model; Figure 5 This is a cross-sectional structural diagram of the second slider in this utility model.

[0013] The image shows: 1. Operating platform; 11. Motor; 12. Double-acting lead screw; 13. Threaded sleeve; 14. Support platform; 2. Support platform; 21. Slide rail; 22. First slider; 23. First hydraulic rod; 3. Clamping arm; 31. Support arm; 32. First fixing plate; 33. First fixing bolt; 34. First washer; 4. Slide groove; 41. Second slider; 42. Second hydraulic rod; 43. Second fixing plate; 44. Second fixing bolt; 45. Second washer. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0015] like Figures 1-5As shown, the machining fixture for an electric valve positioner proposed in this embodiment includes an operating table 1, and further includes: The support platform 14 is fixedly connected to the middle section of the top wall of the operating platform 1 and is used to support the workpiece; Two sets of opposing drive components are symmetrically arranged on the inner side of the control panel 1 about the central axis of the control panel 1; Two sets of support platforms 2 are respectively set on the driving end of the opposing drive component, and the opposing drive component drives the two sets of support platforms 2 to move in opposite directions. The slide rail 21 is fixedly connected to the outer wall of the two support platforms 2 facing each other; Multiple first sliders 22 are slidably connected to the top outer wall of the slide rail 21; A clamping assembly is disposed on the top wall of the first hydraulic rod 23 for clamping and fixing the workpiece; An auxiliary fixing component is located inside the connecting end of the clamping component and is used to assist in fixing the outer side of the workpiece.

[0016] The opposing drive assembly includes two bidirectional lead screws 12 symmetrically rotatably connected to both sides of the inside of the operating table 1, and two motors 11 symmetrically fixedly connected to the outer wall of the operating table 1 about the central axis of the operating table 1. The output end of the motor 11 is fixedly connected to one end of the bidirectional lead screw 12. The motors 11 on both sides drive the bidirectional lead screws 12 to rotate. Two threaded sleeves 13 are symmetrically threaded about the midpoint on the outer side of the bidirectional lead screw 12. The threaded sleeves 13 on both sides of the bidirectional lead screw 12 move in opposite directions. The threaded sleeves 13 are fixedly connected to the support platform 2 and support and fix the support platform 2 through the threaded sleeves 13.

[0017] The clamping assembly includes a first hydraulic rod 23 fixed to the outer wall of a support platform 2 on one side. The support platform 2 on one side supports and fixes the first hydraulic rod 23. The first hydraulic rod 23 is symmetrically arranged about the central axis of the operating table 1, located on both sides of the support platform 14. The output end of the first hydraulic rod 23 is fixedly connected to a clamping arm 3 fixed to the top wall of the first slider 22. The first hydraulic rod 23 supports and fixes the clamping arm 3. At the same time, the first hydraulic rods 23 on both sides drive the corresponding clamping arms 3 to move in opposite directions. A sliding groove 4 is opened on the inner side of the middle section of the clamping arm 3. The inner side of the end of the clamping arm 3 away from the first hydraulic rod 23 is slidably connected to... A support arm 31 is provided, and a clamping arm 3 limits the position of the support arm 31, allowing the support arm 31 to slide inside the clamping arm 3. A first fixing plate 32 is fixedly connected to the outer end of the support arm 31, and the support arm 31 supports and fixes the first fixing plate 32. A first fixing bolt 33 is internally threaded to the end of the support arm 31 away from the first fixing plate 32. A first washer 34 is slidably connected to the outer side of the top wall of the first fixing bolt 33. By rotating the first fixing bolt 33, the first washer 34 is pressed down, thereby increasing the friction between the first washer 34 and the clamping arm 3, thereby fixing the position of the support arm 31.

[0018] The auxiliary fixing assembly includes a second slider 41 slidably connected to the inner side of the slide groove 4. The slide groove 4 supports and limits the second slider 41, allowing it to slide within the slide groove 4. A second hydraulic rod 42 is fixedly connected to the outer wall of the second slider 41. The output end of the second hydraulic rod 42 passes through the second slider 41 and is fixedly connected to a second fixing plate 43. The second slider 41 supports and fixes the second hydraulic rod 42, and simultaneously supports and fixes the second fixing plate 43. The second hydraulic rod 42 also drives the second fixing plate 43 to move. A second fixing bolt 44 is threadedly connected to the inner top of the second slider 41. A second washer 45 is slidably connected to the outer top wall of the second fixing bolt 44. By rotating the second fixing bolt 44, the second washer 45 is pressed down, increasing the friction between the second washer 45 and the clamping arm 3, thereby fixing the position of the second slider 41.

[0019] The outer walls of the first fixing plate 32 and the second fixing plate 43 are provided with rubber layers, which protect the workpiece.

[0020] Specifically, the machining fixture for this electric valve positioner is used as follows: First, place the workpiece on the top of the support platform 14. Then, adjust the length of the outward extension of the support arm 31 to align the first fixing plate 32 with the workpiece. Next, rotate the first fixing bolt 33 to press down the first shim 34, increasing the friction between the first shim 34 and the clamping arm 3, thereby fixing the position of the support arm 31. Then, adjust the position of the second slider 41 inside the slide groove 4 to align the second fixing plate 43 with the workpiece, and rotate the second fixing bolt 44 to fix the position of the second slider 41. Then, the motor 11 drives the bidirectional lead screw 12 to rotate, and the bidirectional lead screw 12 simultaneously drives the threaded sleeves 13 on both sides to move in opposite directions. In turn, the threaded sleeves 13 drive the support platform 2, slide rail 21, first slider 22, clamping arm 3 on the top of the first slider 22, and auxiliary fixing assembly to move in opposite directions. The workpiece is fixed by the second fixing plate 43 in the auxiliary fixing assembly. At the same time, the second hydraulic rod 42 can control the second fixing plate 43 to move in opposite directions, finely adjust the clamping force, and pre-fix the workpiece. Then, the first hydraulic rod 23 drives the clamping arm 3 and the first slider 22 at the bottom of the clamping arm 3 to slide on the slide rail 21. The clamping arm 3 uses the support arm 31 to drive the first fixing plate 32 to move in opposite directions, thereby clamping and fixing the workpiece through the first fixing plate 32. Then, the second hydraulic rod 42 drives the second fixing plate 43 to move in opposite directions to clamp and fix the side wall of the workpiece.

Claims

1. A machining fixture for an electric valve positioner, comprising an operating table (1), characterized in that, Also includes: The support platform (14) is fixedly connected to the middle section of the top wall of the operating table (1) and is used to support the workpiece; Two sets of opposing drive components are symmetrically arranged on the inner side of the control panel (1) about the central axis of the control panel (1); Two sets of support platforms (2) are respectively set on the driving end of the opposing drive component, and the opposing drive component drives the two sets of support platforms (2) to move in opposite directions; The slide rail (21) is fixedly connected to the outer wall of the opposite side of the two support platforms (2); Multiple first sliders (22) are slidably connected to the top outer wall of the slide rail (21); The clamping assembly is located on the top wall of the first hydraulic rod (23) and is used to clamp and fix the workpiece. An auxiliary fixing component is located inside the connecting end of the clamping component and is used to assist in fixing the outer side of the workpiece.

2. The machining fixture for an electric valve positioner according to claim 1, characterized in that, The opposing drive assembly includes two bidirectional lead screws (12) symmetrically rotatably connected to both sides of the inside of the operating table (1), and two motors (11) symmetrically fixedly connected to the outer wall of the operating table (1) about the central axis of the operating table (1). The output end of the motor (11) is fixedly connected to one end of the bidirectional lead screw (12). Two threaded sleeves (13) are symmetrically threaded about the midpoint on the outer side of the bidirectional lead screw (12). The threaded sleeves (13) are fixedly connected to the support platform (2).

3. The machining fixture for an electric valve positioner according to claim 2, characterized in that, The clamping assembly includes a first hydraulic rod (23) fixed to the outer wall of a support platform (2) on one side. The output end of the first hydraulic rod (23) is fixedly connected to a clamping arm (3) fixed to the top wall of the first slider (22). A sliding groove (4) is provided on the inner side of the middle section of the clamping arm (3). A support arm (31) is slidably connected to the inner side of the end of the clamping arm (3) away from the first hydraulic rod (23). A first fixing plate (32) is fixedly connected to the outer end of the support arm (31). A first fixing bolt (33) is internally threaded to the end of the support arm (31) away from the first fixing plate (32). A first washer (34) is slidably connected to the outer side of the top wall of the first fixing bolt (33).

4. The machining fixture for an electric valve positioner according to claim 3, characterized in that, The auxiliary fixing assembly includes a second slider (41) slidably connected to the inner side of the slide groove (4), a second hydraulic rod (42) fixedly connected to the outer wall of the second slider (41), a second fixing plate (43) fixedly connected to the output end of the second hydraulic rod (42) through the second slider (41), a second fixing bolt (44) threadedly connected to the inner side of the top of the second slider (41), and a second washer (45) slidably connected to the outer side of the top wall of the second fixing bolt (44).

5. The machining fixture for an electric valve positioner according to claim 4, characterized in that, The outer walls of the first fixing plate (32) and the second fixing plate (43) are provided with a rubber layer.

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