Valve positioner shell drilling auxiliary jig

Abstract

The utility model relates to the technical field of valve positioner shell drilling, in particular to a valve positioner shell drilling auxiliary jig which comprises a working table and a placing disc rotationally arranged on the upper end face of the working table, a drilling machine is arranged above the placing disc, a lower pressing plate is arranged above the placing disc, and the lower pressing plate is arranged above the drilling machine. And a clamping and centering assembly is arranged above the lower pressing plate, and the clamping and centering assembly is used for pushing the lower pressing plate to clamp the valve positioner shell placed on the placing disc. Through the arrangement of the clamping and centering assembly and the lower pressing plate, not only can the valve positioner shell to be drilled be clamped and fixed, but also the position of the valve positioner shell to be drilled can be centered, so that the valve positioner shell is centered at a target position; and therefore, the drilling precision of the valve positioner shell is prevented from being influenced by deviation between the valve positioner shell and the designated placement position of the valve positioner shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve positioner shell drilling technical field, concretely is a kind of valve positioner shell drilling auxiliary jig. BACKGROUND

[0002] Valve positioner shell drilling auxiliary jig is a tool specially used in the machining process of valve positioner shell, which assists in completing drilling operation. Its main function is to ensure the positioning and fixing of the shell during machining, thereby improving the accuracy and efficiency of drilling.

[0003] At present, when valve positioner shell is drilled, drilling auxiliary jig is usually used for positioning. The commonly used drilling auxiliary jig is a clamping block clamped on the valve positioner shell. Although this can position and fix the valve positioner shell, there is deviation between the placed position of the valve positioner shell and the specified placed position, which will affect the drilling precision of the drilling machine on the flange drilled on the valve positioner shell.

[0004] Therefore, we propose a valve positioner shell drilling auxiliary jig. INVENTION CONTENTS

[0005] One of the technical problems to be solved by the present application is how to design a valve positioner shell drilling auxiliary jig that can improve the drilling precision of valve positioner shell.

[0006] To solve the above technical problems, the present application provides a valve positioner shell drilling auxiliary jig, which comprises a workbench and a placing disc rotatably arranged on the upper end face of the workbench. A drilling machine is arranged above the placing disc. A lower pressing plate is arranged above the placing disc. A clamping and centering assembly is arranged above the lower pressing plate. The clamping and centering assembly is used to push the lower pressing plate to clamp the valve positioner shell placed on the placing disc and also to center the clamped valve positioner shell.

[0007] In some embodiments, the clamping and centering assembly comprises a support plate arranged on the upper end face of the workbench. A first air cylinder is arranged on the upper end face of the support plate. The output end of the first air cylinder penetrates through the support plate, and the output end of the first air cylinder is provided with a fixing box. A plug rod is inserted into the lower end face of the fixing box. One end of the plug rod is connected to the lower pressing plate.

[0008] In some embodiments, a plurality of openings are formed in the fixing box. A first connecting plate is rotatably arranged inside each opening. One end of the first connecting plate is provided with a half gear. The one end of the first connecting plate is rotatably connected to a clamping plate.

[0009] In some embodiments, the first connecting plate is provided with a second connecting plate below, one end of the second connecting plate is rotationally connected to the inner side wall of the opening, the other end of the second connecting plate is rotationally connected to the clamping plate, the plug rod is provided with a plurality of tooth plates, and a half gear at one end of the plurality of first connecting plates is engaged with the plurality of tooth plates on the plug rod.

[0010] In some embodiments, the inner side bottom end of the fixing box is provided with a spiral spring, one end of the spiral spring is connected to the plug rod inserted in the fixing box.

[0011] In some embodiments, the inner side of the workbench is provided with a driving motor, the output end of the driving motor is butted to the placement disc, the upper end face of the workbench is provided with a fixing frame, the upper end face of the fixing frame is provided with a second air cylinder, and the output end of the second air cylinder is butted to the drilling machine.

[0012] In some embodiments, the clamping plate is provided with a multi-point clamping assembly, the multi-point clamping assembly is used for multi-point clamping of the valve positioner shell with uneven surface, and the multi-point clamping assembly comprises a plurality of insertion holes formed in the clamping plate.

[0013] In some embodiments, the insertion hole is provided with a clamping top rod inside, the insertion hole is provided with an extrusion spring inside the bottom end, one end of the extrusion spring is connected to the clamping top rod inserted in the insertion hole, a limiting sliding groove is formed in the inner side of the insertion hole, a limiting sliding block is arranged on the clamping top rod, and the limiting sliding block on the clamping top rod is slidingly connected in the limiting sliding groove in the inner side of the insertion hole.

[0014] The utility model at least has the following beneficial effects:

[0015] Through the setting of the clamping and centering assembly and the lower pressing plate, the valve positioner shell to be drilled can be clamped and fixed, and the valve positioner shell to be drilled can be centered, so that the valve positioner shell is centered on the target position, and the drilling precision of the valve positioner shell is further avoided to be affected due to the deviation between the valve positioner shell and the specified placement position of the valve positioner shell. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a clamping and centering assembly perspective view of the utility model;

[0018] Figure 3 It is a clamping and centering assembly split view of the utility model;

[0019] Figure 4 It is a fixing box and plug rod split view of the utility model;

[0020] Figure 5 The utility model works with driving motor split diagram;

[0021] Figure 6 It is the utility model embodiment 2 split diagram of clamping plate and multi -point clamping subassembly with.

[0022] In the drawing: 1, work table, 2, place tray, 3, lower pressing plate, 4, drilling machine, 5, clamping center subassembly, 51, support plate, 52, first air cylinder, 53, fixed box, 54, plug rod, 55, opening, 56, first connecting plate, 57, half gear, 58, second connecting plate, 59, clamping plate, 510, toothed plate, 511, helical spring, 6, multi -point clamping subassembly, 61, jack, 62, clamping top rod, 63, extrusion spring, 64, limit sliding block, 65, limit sliding slot, 7, driving motor, 8, fixed frame, 9, second air cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. EMBODIMENT

[0024] Please refer to Figure 1 The utility model provides a technical scheme:

[0025] A valve positioner shell drilling auxiliary jig, including work table 1 and rotationally arranged on the upper end surface of work table 1 place tray 2, the upper of place tray 2 is provided with drilling machine 4, the upper of place tray 2 is provided with lower pressing plate 3, the upper of lower pressing plate 3 is provided with clamping center subassembly 5, clamping center subassembly 5 is used to push lower pressing plate 3 and is placed on place tray 2 with the valve positioner shell of clamping, and still can the valve positioner shell of clamping is centered.

[0026] Please refer to Figures 2-4 , the clamping center subassembly 5 includes the support plate 51 set up on the upper end surface of work table 1, the upper end surface of support plate 51 is provided with first air cylinder 52, the output end of first air cylinder 52 passes through support plate 51, and first air cylinder 52 output end is provided with fixed box 53, the lower end surface of fixed box 53 is inserted with plug rod 54, one end of plug rod 54 is connected with lower pressing plate 3.

[0027] Among them, fixed box 53, lower pressing plate 3, place tray 2 are in the same vertical line, one end of plug rod 54 extends to the lower of fixed box 53.

[0028] The fixed box 53 is provided with a plurality of openings 55, and the first connecting plates 56 are rotatably arranged in the openings 55. One end of the first connecting plate 56 is provided with a half gear 57, and the one end of the first connecting plate 56 is rotatably connected with the clamping plate 59.

[0029] The clamping plate 59 is perpendicular to the bottom surface.

[0030] The second connecting plates 58 are arranged below the first connecting plates 56, one end of the second connecting plate 58 is rotatably connected with the inner wall of the opening 55, the other end of the second connecting plate 58 is rotatably connected with the clamping plate 59, the plug rod 54 is provided with a plurality of toothed plates 510, and the half gears 57 at one end of the plurality of first connecting plates 56 are respectively engaged with the plurality of toothed plates 510 on the plug rod 54.

[0031] The first connecting plate 56 and the second connecting plate 58 are parallel to each other, so that the clamping plate 59 is always perpendicular to the bottom surface during the rotation of the first connecting plate 56.

[0032] The inside bottom end of the fixed box 53 is provided with a spiral spring 511, one end of the spiral spring 511 is connected with the plug rod 54 inserted in the fixed box 53.

[0033] The spiral spring 511 can quickly restore the lower pressing plate 3 to the original position.

[0034] Please refer to Figure 5 The inside of the workbench 1 is provided with a driving motor 7, the output end of the driving motor 7 is connected with the placement disc 2, the upper end surface of the workbench 1 is provided with a fixed frame 8, the upper end surface of the fixed frame 8 is provided with a second air cylinder 9, and the output end of the second air cylinder 9 is connected with the drilling machine 4.

[0035] In use, the valve positioner shell is placed on the upper end face of the placing disc 2, and then the first air cylinder 52 is started to move the fixed box 53 and the pressing plate 3 connected to the inserting rod 54 to the valve positioner shell placed on the placing disc 2, and when the lower end face of the pressing plate 3 is attached to the valve positioner shell, the fixed box 53 continues to move downward, and the inserting rod 54 moves to the inside bottom end of the fixed box 53, the movement of the inserting rod 54 extrudes the spiral spring 511 inside the fixed box 53, and the inserting rod 54 moves in cooperation with the half gear 57 on the first connecting plate 56 through the toothed plate 510 to drive the first connecting plate 56 to rotate, and the second connecting plate 58 rotates with the first connecting plate 56, and the first connecting plate 56 drives the clamping plate 59 to move to the valve positioner shell on the upper end face of the placing disc 2, and the movement of the clamping plate 59 clamps the valve positioner shell on the upper end face of the placing disc 2, and the valve positioner shell is forced to be centered in the middle of the placing disc 2, and when the valve positioner is stable, the second air cylinder 9 is started to drive the drilling machine 4 to drill the flange on the valve positioner shell.

[0036] The clamping and centering assembly 5 and the pressing plate 3 can not only clamp and fix the valve positioner shell to be drilled, but also center the valve positioner shell to be drilled, so that the valve positioner shell is centered on the target position, and the drilling accuracy of the valve positioner shell is affected by the deviation between the valve positioner shell and the specified placing position of the valve positioner shell.

[0037] Embodiment 2: please refer to Figure 6 Based on embodiment 1, the utility model provides a kind of multi-point clamping assembly 6 technical scheme:

[0038] The clamping plate 59 is provided with a multi-point clamping assembly 6, and the multi-point clamping assembly 6 is used for multi-point clamping the valve positioner shell with uneven surface, and the multi-point clamping assembly 6 includes a plurality of insertion holes 61 opened in the clamping plate 59.

[0039] The insertion hole 61 is provided with a clamping top rod 62 inside, the insertion hole 61 is provided with an extrusion spring 63 at the bottom end inside, one end of the extrusion spring 63 is connected with the clamping top rod 62 inserted in the insertion hole 61, the insertion hole 61 is provided with a limiting sliding groove 65 inside, the clamping top rod 62 is provided with a limiting sliding block 64, and the limiting sliding block 64 on the clamping top rod 62 is slidingly connected in the limiting sliding groove 65 inside the insertion hole 61

[0040] When the clamping plate 59 clamps the valve positioner shell, the clamping top rod 62 on the clamping plate 59 first contacts the valve positioner shell, and if the clamping top rod 62 is on the protrusion on the valve positioner shell, as the clamping force of the clamping plate 59 on the valve positioner shell increases, the clamping top rod 62 on the protrusion on the valve positioner shell moves to the bottom end of the insertion hole 61, and the movement of the clamping top rod 62 extrudes the compression spring 63 in the insertion hole 61, at this time, the plurality of clamping top rods 62 on the clamping plate 59 can be on the valve positioner shell.

[0041] The multi-point clamping assembly 6 can not only clamp the valve positioner shell at multiple points, but also improve the stability of the clamping of the valve positioner shell, and can also be applied to irregular valve positioner shells, avoiding the problem that the irregular surface of the valve positioner shell causes the valve positioner shell to be locally stressed too much during clamping, and the local clamping force is too large, which can cause the valve positioner shell to deform.

[0042] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or apparatus.

[0043] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A valve positioner shell drilling auxiliary jig, comprising a workbench (1) and a placing disc (2) rotatably arranged on the upper end surface of the workbench (1), a drilling machine (4) is arranged above the placing disc (2), characterized in that: A pressure plate (3) is provided above the placement plate (2), and a clamping centering component (5) is provided above the pressure plate (3). The clamping centering component (5) is used to push the pressure plate (3) to clamp the valve positioner housing placed on the placement plate (2), and can also center the clamped valve positioner housing.

2. The valve positioner housing drilling aid of claim 1, wherein: The clamping centering component (5) includes a support plate (51) disposed on the upper surface of the workbench (1). A first cylinder (52) is disposed on the upper surface of the support plate (51). The output end of the first cylinder (52) passes through the support plate (51), and a fixed box (53) is disposed on the output end of the first cylinder (52). A plug rod (54) is inserted into the lower surface of the fixed box (53), and one end of the plug rod (54) is connected to the lower pressure plate (3).

3. The valve positioner housing drilling aid of claim 2, wherein: The fixed box (53) has multiple openings (55), and a first connecting plate (56) is rotatably provided inside each opening (55). A half gear (57) is provided at one end of the first connecting plate (56), and a clamping plate (59) is rotatably connected to one end of the first connecting plate (56).

4. The valve positioner housing drilling aid of claim 3, wherein: A second connecting plate (58) is provided below each of the first connecting plates (56). One end of the second connecting plate (58) is rotatably connected to the inner wall of the opening (55), and the other end of the second connecting plate (58) is rotatably connected to the clamping plate (59). Multiple toothed plates (510) are provided on the insertion rod (54), and the half gears (57) at one end of multiple first connecting plates (56) respectively mesh with the multiple toothed plates (510) on the insertion rod (54).

5. The valve positioner housing drilling aid of claim 2, wherein: A helical spring (511) is provided at the bottom of the inner side of the fixed box (53), and one end of the helical spring (511) is connected to the insertion rod (54) inserted into the fixed box (53).

6. The valve positioner housing drilling aid of claim 1, wherein: The inner side of the workbench (1) is provided with a drive motor (7), the output end of the drive motor (7) is connected to the placement plate (2), the upper surface of the workbench (1) is provided with a fixing frame (8), the upper surface of the fixing frame (8) is provided with a second cylinder (9), and the output end of the second cylinder (9) is connected to the drilling machine (4).

7. The valve positioner housing drilling aid of claim 3, wherein: The clamping plate (59) is provided with a multi-point clamping assembly (6), which is used to clamp the valve positioner housing with uneven surface at multiple points. The multi-point clamping assembly (6) includes multiple insertion holes (61) opened on the clamping plate (59).

8. The valve positioner housing drilling aid of claim 7, wherein: A clamping rod (62) is inserted into the inner side of the insertion hole (61). A compression spring (63) is provided at the bottom of the inner side of the insertion hole (61). One end of the compression spring (63) is connected to the clamping rod (62) inserted into the insertion hole (61). A limiting groove (65) is provided inside the insertion hole (61). A limiting slider (64) is provided on the clamping rod (62). The limiting slider (64) on the clamping rod (62) is slidably connected in the limiting groove (65) inside the insertion hole (61).

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