Milling jig for valve body

Abstract

The invention relates to the technical field of clamp devices, and particularly discloses a milling machine clamp for a valve body, which comprises a support plate, a driving assembly and a support assembly, the support assembly is arranged at the top of the support plate in a lifting manner, the support assembly is used for placing the valve body, the driving assembly is arranged at the top of the support plate, and the milling machine clamp further comprises two moving plates, a clamping unit, a protection module and a top extension assembly, the two moving plates are arranged on the supporting plate, rotating discs are rotationally arranged on the opposite side walls of the two moving plates, clamping units are arranged on the rotating discs, and the protection module is arranged on the first clamping block in a sliding mode and can protect the machined outer surface of the valve body. According to the milling machine clamp for the valve body, the valve body can be clamped alternately, the situation that when the clamping part of the valve body is cut or polished, scraps splash to scratch the polished surface is avoided, the qualified rate of valve body production is guaranteed, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of clamp devices, and in particular to a milling machine clamp for a valve body. Background Art

[0002] Milling machine fixture is a key tool in the field of mechanical processing, mainly used to fix the workpiece so as to carry out precise processing on the milling machine. The valve body milling machine fixture is a tool specially used for milling the valve body, so that the valve can ensure the stability and precision of the workpiece during the processing, thereby ensuring the qualified rate of the valve body processing.

[0003] A Chinese patent with announcement number CN112692603A discloses a milling machine fixture, including a base and a positioning member arranged on the base, wherein the positioning member includes: a fixed plate fixed on the base; a movable plate slidably arranged on the base; at least one guide rod, one end of which is fixed to the top plate and the other end passes through the movable plate; a spring sleeved on the guide rod; a driving member connected to the movable plate to enable the movable plate to slide on the base along the guide rod; and a support column slidably arranged on the base and located between the fixed plate and the movable plate, which solves the problem of the single use object of the existing fixture. The invention provides a milling machine fixture that adjusts the distance between the movable plate and the fixed plate by sliding the movable plate, thereby adapting to the processing needs of end covers of different diameters, thereby improving the scope of use and increasing versatility.

[0004] The above patent document adjusts the distance between the moving plate and the fixed plate by sliding the moving plate, thereby adapting to the processing needs of end covers of different diameters and increasing the scope of use. However, when processing the valve body, the clamping part usually cannot be polished or cut, so manual adjustment is required before the clamping part can be polished or cut, which increases the manual workload and reduces production efficiency. At the same time, when polishing or cutting the clamping part, it is easy to cause iron chips to splash and scratch the processed outer surface of the valve body, thereby affecting the qualified rate of the valve body production and reducing the service life of the valve body. Summary of the invention

[0005] The present invention provides a milling machine fixture for a valve body, aiming to solve the technical problem in the related art that the clamping part of the valve body needs to be manually adjusted before the clamping part can be polished or cut, which increases the manual workload and easily scratches the processed outer surface of the valve body.

[0006] A milling machine fixture for a valve body of the present invention comprises: a support plate, a driving assembly and a supporting assembly, wherein the supporting assembly is lifted and arranged on the top of the support plate, the supporting assembly is used to place the valve body, the driving assembly is arranged on the top of the support plate, and further comprises: two movable plates, a clamping unit, a protective module and an extension assembly, the two movable plates are arranged on the support plate, and the driving assembly can drive the two movable plates to move in opposite directions, rotating disks are rotatably arranged on the opposite side walls of the two movable plates, a clamping unit is arranged on the rotating disk, and the clamping units on the two movable plates clamp the valve body alternately, a clamping block 1 is arranged on the clamping unit on one of the movable plates, the protective module is slidably arranged on the clamping block 1, the protective module can protect the processed outer surface of the valve body, the extension assembly is arranged on the clamping block 1, and the extension assembly can drive the protective module to move along the axial direction of the valve body.

[0007] Preferably, the clamping unit comprises: a clamping unit 1 and a clamping unit 2, wherein the clamping unit 1 comprises: a clamping seat 1, a driving motor 1, a bidirectional screw rod 1, a movable rod 1 and a fixed rod 1, the clamping seat 1 is arranged on an outer wall of one side of the left rotating disk, the driving motor 1 is arranged on the top surface of the clamping seat 1, a groove is opened on the outer wall of one side of the clamping seat 1 along the length direction, and the bidirectional screw rod 1 is rotatably arranged in the groove along the length direction, and the output end of the driving motor 1 is transmission connected with the bidirectional screw rod 1.

[0008] Preferably, the movable rod 1 is symmetrically arranged on the outer peripheral surface of the bidirectional screw rod 1 along the axial direction, the fixed rod 1 is arranged on the side wall of the movable rod 1, the clamping block 1 is arranged on the right end surface of the fixed rod 1, and semicircular grooves are provided on the opposite side walls of the two clamping blocks 1.

[0009] Preferably, the second clamping unit includes: a second clamping seat, a second moving rod, a second fixed rod, a second driving motor and a second bidirectional screw rod. The second clamping seat is arranged on an outer wall of one side of the right rotating disk. A groove is provided on the outer wall of one side of the clamping seat, and the second bidirectional screw rod is rotatably arranged in the groove. The second driving motor is arranged on the top of the second clamping seat, and the output end of the second driving motor is transmission-connected to the second bidirectional screw rod.

[0010] Preferably, the movable rod 2 is symmetrically arranged on the outer peripheral surface of the bidirectional screw rod 2 along the axial direction, the fixed rod 2 is arranged on the side wall of the movable rod 2, the clamping block 2 is arranged on the left end surface of the fixed rod 2, and semicircular grooves are provided on the opposite side walls of the clamping block 2, and the curvature of the clamping block 2 is slightly larger than the curvature of the clamping block 1.

[0011] Preferably, the driving assembly includes: a motor, a bidirectional lead screw and a fixed block, fixed plates are arranged on both sides of the support plate, the motor is arranged on the side walls of one of the fixed plates, the fixed block is arranged at the top center position of the support plate, the bidirectional lead screw is arranged on two opposite side walls of the fixed plate, and the output end of the motor is transmission-connected to the bidirectional lead screw, while the bidirectional lead screw passes through the fixed block, and the movable plate is symmetrically arranged on the outer peripheral surface of the bidirectional lead screw.

[0012] Preferably, the extension assembly includes: an extension rod, a top plate, a U-shaped protective piece and an infrared sensor, a plurality of extension rods are respectively arranged on the outer wall of one side of the clamping block, the U-shaped protective piece is arranged on the outer peripheral surface of the clamping block, and the openings of the two U-shaped protective pieces are opposite to each other, the top plate is arranged on the outer wall of one side of the protective module, and the output end of the extension rod is connected to the top plate.

[0013] Preferably, a support frame is provided on one side outer wall of the movable plate, a motor three is provided on one side outer wall of the support frame, and a rotating rod is provided at the output end of the motor three, one end of the rotating rod is drivingly connected to the rotating disk.

[0014] Preferably, the top of the support plate is provided with slide grooves spaced apart along the length direction, and the bottom of the movable plate is provided with a slider, and the slider is slidably matched with the slide groove.

[0015] The beneficial effects of the present invention are:

[0016] When the valve body is cut or polished, the valve body is first manually placed on the supporting assembly, and then the driving assembly drives the moving plate to move toward each other, and the movement of the moving plate drives the rotating disk, clamping unit 1 and clamping unit 2. When clamping unit 1 and clamping unit 2 move to the outer surface of the valve body, first clamping unit 2 clamps the valve body, and then the rotating disk drives clamping unit 2 and the valve body to rotate, and the processing device cuts or polishes the surface of the valve body. After polishing, clamping unit 1 clamps the polished surface of the valve body, and the extending assembly pushes the protective module to move along the axial direction of the valve body, so as to protect the processed outer surface of the valve body and avoid scratches on the polished surface caused by debris splashing when cutting or polishing the clamping part of the valve body, thereby ensuring the qualified rate of valve body production and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the bidirectional lead screw structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the protection module of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the U-shaped protective member of the present invention.

[0021] Figure 5 It is a schematic diagram of the rotating disk structure of the present invention.

[0022] Reference numerals:

[0023] 10. Support plate; 11. Fixed plate; 12. Slide groove; 13. Fixed block; 14. Slider; 20. Motor; 21. Bidirectional lead screw; 22. Moving plate; 23. Rotating disk; 24. Support frame; 25. Motor three; 26. Rotating rod; 30. Clamping seat one; 31. Moving rod one; 32. Fixed rod one; 33. Clamping block one; 34. Driving motor one; 35. Bidirectional lead screw one; 38. Clamping block two; 40. Protection module; 41. U-shaped protection piece; 42. Top plate; 43. Infrared sensor; 44. Extending rod; 50. Clamping seat two; 51. Moving rod two; 52. Fixed rod two; 53. Driving motor two; 54. Bidirectional lead screw two. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] like Figures 1 to 5 As shown, a milling machine fixture for a valve body of the present invention comprises: a support plate 10, a driving assembly and a supporting assembly, the supporting assembly is lifted and arranged on the top of the support plate 10, the supporting assembly is used to place the valve body, the driving assembly is arranged on the top of the support plate 10, and further comprises: a moving plate 22, a clamping unit 1, a clamping unit 2, a clamping block 1 33, a clamping block 2 38, a protective module 40 and a top extension assembly, the moving plates 22 are symmetrically arranged on the top of the support plate 10, and the driving assembly can drive the moving plates 22 to move closer or farther away from each other, and the opposite side walls of the two moving plates 22 are A rotating disk 23 is rotatably arranged, a clamping unit 1 is arranged on the left rotating disk 23, a clamping unit 2 is arranged on the right rotating disk 23, the clamping unit 1 and the clamping unit 2 can clamp the valve body alternately, a clamping block 1 33 is arranged on the clamping unit 1, a clamping block 2 38 is arranged on the clamping unit 2, a protective module 40 is slidably arranged on the clamping block 1 33, the protective module 40 can protect the processed outer surface of the valve body, an extension component is arranged on the clamping block 1 33, and the extension component can drive the protective module 40 to move along the axial direction of the valve body.

[0026] When the valve body is cut or polished, the valve body is first placed on the supporting assembly manually, and then the driving assembly drives the movable plate 22 to move toward each other, and the movement of the movable plate 22 drives the rotating disk 23, the clamping unit 1 and the clamping unit 2. When the clamping unit 1 and the clamping unit 2 move to the outer surface of the valve body, the clamping unit 2 and the clamping block 2 38 clamp the valve body first, and then the rotating disk 23 drives the clamping unit 2 and the valve body to rotate, and the processing device cuts or polishes the surface of the valve body. After polishing, the clamping unit 1 and the clamping block 1 33 clamp the polished surface of the valve body, and the extending assembly pushes the protective module 40 to move along the axial direction of the valve body, so as to protect the processed outer surface of the valve body and avoid scratches on the polished surface caused by splashing of debris when cutting or polishing the clamping part of the valve body, thereby ensuring the qualified rate of the valve body production and improving the production efficiency.

[0027] To further explain how to alternately clamp the valve body and protect the processed outer surface of the valve body, improve production efficiency, and ensure the qualified rate of valve body production, the following will be described in detail.

[0028] like Figure 2 As shown, the driving assembly includes: a motor 20, a bidirectional lead screw 21 and a fixed block 13. The fixed plates 11 are arranged on the left and right sides of the support plate 10. The motor 20 is arranged on the side wall of one of the fixed plates 11. The fixed block 13 is arranged at the top center position of the support plate 10. The bidirectional lead screw 21 is arranged on two opposite side walls of the fixed plate 11, and the output end of the motor 20 is transmission-connected with the bidirectional lead screw 21. At the same time, the bidirectional lead screw 21 runs through the fixed block 13, and the movable plate 22 is symmetrically arranged on the outer peripheral surface of the bidirectional lead screw 21, so that the rotation of the bidirectional lead screw 21 can drive the two movable plates 22 to move closer to or away from each other.

[0029] When the valve body needs to be clamped, the motor 20 drives the bidirectional screw 21 to rotate, and the rotation of the bidirectional screw 21 drives the two movable plates 22 to approach each other, and the movement of the two movable plates 22 drives the clamping unit 1 and the clamping unit 2 to move toward the valve body. When the clamping unit 1 and the clamping unit 2 move to the valve body position, the two clamping units can clamp the valve body alternately, avoiding the need for manual secondary adjustment of the clamping position during processing, thereby reducing the workload of manual adjustment and improving the efficiency of valve body production.

[0030] like Figures 1 to 3As shown, the clamping unit 1 includes: a clamping seat 130, a driving motor 134, a bidirectional screw rod 135, a moving rod 131 and a fixed rod 132. The clamping seat 130 is arranged on the outer wall of one side of the left rotating disk 23, and the clamping seat 130 plays a supporting and fixing role. The driving motor 134 is arranged on the top surface of the clamping seat 130. A groove is opened on the outer wall of one side of the clamping seat 130 along the length direction, and the bidirectional screw rod 135 is rotatably arranged in the groove along the length direction, and the output end of the driving motor 134 is transmission-connected with the bidirectional screw rod 135. The moving rod 131 is symmetrically arranged on the outer peripheral surface of the bidirectional screw rod 135 along the axial direction, the fixed rod 132 is arranged on the side wall of the moving rod 131, and the clamping block 133 is arranged on the right end surface of the fixed rod 132. Semicircular grooves are opened on the opposite sides of the two clamping blocks 133, and the semicircular grooves are slightly smaller than the curvature of the outer peripheral surface of the circular valve body, so that the two clamping blocks 133 can clamp and fix the polished outer peripheral surface of the valve body.

[0031] like Figure 2 and Figure 5 As shown, the clamping unit 2 includes: a clamping seat 2 50, a moving rod 2 51, a fixed rod 2 52, a driving motor 2 53 and a bidirectional screw 2 54. The clamping seat 2 50 is arranged on an outer wall of one side of the right rotating disk 23, and a groove is provided on the outer wall of one side of the clamping seat 2 50, and the bidirectional screw 2 54 is arranged in the groove, and the driving motor 2 53 is arranged on the top of the clamping seat 2 50, and the output end of the driving motor 2 53 is transmission-connected with the bidirectional screw 2 54, the moving rod 2 51 is symmetrically arranged on the outer peripheral surface of the bidirectional screw 2 54 along the axial direction, the fixed rod 2 52 is arranged on the side wall of the moving rod 2 51, the clamping block 2 38 is arranged on the left end surface of the fixed rod 2 52, and semicircular grooves are provided on the opposite side walls of the clamping block 2 38, and the curvature of the clamping block 2 38 is slightly larger than that of the clamping block 1 33, and the two clamping blocks 2 38 can clamp the unprocessed outer surface of the valve body.

[0032] When the valve body is processed, first, the driving motor 2 53 can drive the two-way screw rod 2 54 to rotate, and the rotation of the two-way screw rod 2 54 drives the moving rod 2 51 to move toward each other so as to get closer or farther away from each other, and the movement of the moving rod 2 51 drives the fixed rod 2 52 to move, and the movement of the fixed rod 2 52 drives the clamping block 2 38 to move toward each other, so that the two clamping blocks 2 38 clamp the outer surface of the valve body. When the cutting or grinding of the unclamped part is completed, the driving motor 1 34 drives the two-way screw rod 1 35 to rotate, and the rotation of the two-way screw rod 1 35 drives the two moving rods 1 31 to move toward each other. The moving rod 31 moves to drive the fixed rod 32 and the clamping block 33 to move, so that the two clamping blocks 33 clamp the processed outer surface of the valve body, and a protective piece is arranged in the semicircular groove of the clamping block 33 to avoid damage to the polished surface during clamping. At the same time, a protective module 40 and a top extension component are arranged on the clamping block 33, which can fully wrap the polishing position of the valve body to avoid scratches caused by debris during subsequent polishing of the clamping position, thereby ensuring the qualified rate of production and improving the efficiency of valve body production through alternating clamping.

[0033] like Figure 3 to Figure 4 As shown, the extension assembly includes: an extension rod 44, a top plate 42, a U-shaped protective piece 41 and an infrared sensor 43. The multiple extension rods 44 are respectively arranged on the outer wall of one side of the clamping block 33. The opposite sides of the two protection modules 40 are also provided with semicircular grooves. The U-shaped protective piece 41 is arranged on the outer peripheral surface of the clamping block 33, and the U-shaped protective piece 41 is slidably connected to the clamping block 33. At the same time, the openings of the two U-shaped protective pieces 41 are opposite to each other. The top plate 42 is arranged on the outer wall of one side of the protection module 40, and the output end of the extension rod 44 is connected to the top plate 42, so that the extension rod 44 can push the top plate 42. The infrared sensor 43 is arranged on the clamping block 33, which is used to control the extension length of the extension assembly.

[0034] When the clamping unit 1 clamps the processed outer surface of the valve body, since the clamping block 1 33 cannot completely clamp and protect the processed outer surface, the top plate 42 is pushed to move by the extension rod 44, and the movement of the top plate 42 drives the U-shaped protective piece 41 and the protective module 40 to move, and the U-shaped protective piece 41 and the protective module 40 move along the axial direction of the valve body, thereby achieving full wrapping of the processed outer surface of the valve body, thereby avoiding debris splashing and scratching the grinding position when cutting or grinding the clamping part, ensuring the qualified rate of the valve body production and improving the production efficiency. The infrared sensor 43 sets the sensing distance in advance. When the extension component pushes the U-shaped protective piece 41 and the protective module 40 to move, the infrared sensor 43 senses the distance from the clamping block 2 38 after reaching the preset distance, and the extension component will stop moving, so that the U-shaped protective piece 41 and the protective module 40 protect the processed outer surface.

[0035] like Figures 1 to 5As shown, a support frame 24 is provided on one side outer wall of the movable plate 22, a motor 25 is provided on one side outer wall of the support frame 24, and a rotating rod 26 is provided on the output end of the motor 25, one end of the rotating rod 26 is transmission-connected with the rotating disk 23, so that the motor 25 drives the rotating rod 26 to rotate, the rotation of the rotating rod 26 drives the rotating disk 23 to rotate, and the rotation of the rotating disk 23 drives the clamped valve body to rotate, so as to facilitate subsequent processing.

[0036] like Figures 1 to 3 As shown, the top of the support plate 10 is provided with slide grooves 12 spaced apart along the length direction, and the bottom of the movable plate 22 is provided with a slider 14, and the slider 14 slides with the slide groove 12, so that the movable plate 22 can move more stably, thereby ensuring the stability of the clamp clamping the valve body.

[0037] like Figure 2 As shown, the support assembly is lifted and arranged on the fixed block 13, and the support assembly can play a role in placing the valve body. The lifting of the support assembly is a prior art and will not be described in detail here. When the valve body is cut or polished, the support assembly will descend to avoid work interference.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A milling machine fixture for a valve body, comprising: A support plate (10), a drive assembly and a support assembly, wherein the support assembly is lifted and arranged on the top of the support plate (10), the support assembly is used to place a valve body, and the drive assembly is arranged on the top of the support plate (10), characterized in that it also includes: two moving plates (22), a clamping unit, a protection module (40) and a top extension assembly, the two moving plates (22) are arranged on the support plate (10), and the drive assembly can drive the two moving plates (22) to move in opposite directions, and rotating disks are rotatably arranged on the opposite side walls of the two moving plates (22) (23), a clamping unit is provided on the rotating disk (23), and the clamping units on the two movable plates (22) clamp the valve body alternately, a clamping block (33) is provided on the clamping unit on one of the movable plates (22), a protection module (40) is slidably provided on the clamping block (33), the protection module (40) can protect the processed outer surface of the valve body, and a top extension component is provided on the clamping block (33), and the top extension component can drive the protection module (40) to move along the axial direction of the valve body.

2. A milling machine fixture for a valve body according to claim 1, characterized in that: The clamping unit comprises: a clamping unit 1 and a clamping unit 2, wherein the clamping unit 1 comprises: a clamping seat 1 (30), a driving motor 1 (34), a bidirectional screw rod 1 (35), a moving rod 1 (31) and a fixing rod 1 (32), the clamping seat 1 (30) is arranged on an outer wall of one side of the left rotating disk (23), the driving motor 1 (34) is arranged on the top surface of the clamping seat 1 (30), a groove is opened on the outer wall of one side of the clamping seat 1 (30) along the length direction, and the bidirectional screw rod 1 (35) is rotatably arranged in the groove along the length direction, and the output end of the driving motor 1 (34) is transmission-connected with the bidirectional screw rod 1 (35).

3. A milling machine fixture for a valve body according to claim 2, characterized in that: The movable rod 1 (31) is symmetrically arranged on the outer peripheral surface of the bidirectional screw rod 1 (35) along the axial direction, the fixed rod 1 (32) is arranged on the side wall of the movable rod 1 (31), and the clamping block 1 (33) is arranged on the right end surface of the fixed rod 1 (32), and semicircular grooves are provided on the opposite side walls of the two clamping blocks 1 (33).

4. A milling machine fixture for a valve body according to claim 3, characterized in that: The clamping unit 2 comprises: a clamping seat 2 (50), a moving rod 2 (51), a fixed rod 2 (52), a driving motor 2 (53) and a bidirectional screw rod 2 (54). The clamping seat 2 (50) is arranged on an outer wall of one side of the right rotating disk (23). A groove is provided on the outer wall of one side of the clamping seat 2 (50), and the bidirectional screw rod 2 (54) is rotatably arranged in the groove. The driving motor 2 (53) is arranged on the top of the clamping seat 2 (50), and the output end of the driving motor 2 (53) is transmission-connected to the bidirectional screw rod 2 (54).

5. A milling machine fixture for a valve body according to claim 4, characterized in that: The movable rod 2 (51) is symmetrically arranged on the outer peripheral surface of the bidirectional screw rod 2 (54) along the axial direction, the fixed rod 2 (52) is arranged on the side wall of the movable rod 2 (51), and the clamping block 2 (38) is arranged on the left end surface of the fixed rod 2 (52). Semicircular grooves are provided on the opposite side walls of the clamping block 2 (38), and the curvature of the clamping block 2 (38) is slightly larger than that of the clamping block 1 (33).

6. A milling machine fixture for a valve body according to claim 5, characterized in that: The driving assembly comprises: a motor (20), a bidirectional lead screw (21) and a fixed block (13); the fixed plates (11) are arranged on both sides of the support plate (10); the motor (20) is arranged on the side wall of one of the fixed plates (11); the fixed block (13) is arranged at the top center position of the support plate (10); the bidirectional lead screw (21) is arranged on two opposite side walls of the fixed plate (11); the output end of the motor (20) is transmission-connected to the bidirectional lead screw (21); the bidirectional lead screw (21) penetrates the fixed block (13); and the movable plate (22) is symmetrically arranged on the outer peripheral surface of the bidirectional lead screw (21).

7. A milling machine fixture for a valve body according to claim 6, characterized in that: The extension assembly comprises: an extension rod (44), a top plate (42), a U-shaped protective piece (41) and an infrared sensor (43); the plurality of extension rods (44) are respectively arranged on one side outer wall of the clamping block (33); the U-shaped protective piece (41) is arranged on the outer peripheral surface of the clamping block (33); the openings of the two U-shaped protective pieces (41) are opposite to each other; the top plate (42) is arranged on one side outer wall of the protective module (40); and the output end of the extension rod (44) is connected to the top plate (42).

8. A milling machine fixture for a valve body according to claim 7, characterized in that: A support frame (24) is provided on one side outer wall of the movable plate (22), a motor three (25) is provided on one side outer wall of the support frame (24), and a rotating rod (26) is provided at the output end of the motor three (25), one end of the rotating rod (26) is drivingly connected to the rotating disk (23).

9. A milling machine fixture for a valve body according to claim 1, characterized in that: The top of the support plate (10) is provided with sliding grooves (12) at intervals along the length direction, and the bottom of the movable plate (22) is provided with a sliding block (14), and the sliding block (14) is slidably matched with the sliding groove (12).

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