Positioning tool for shell of valve actuator

Abstract

The utility model discloses a positioning tool for a shell of a valve actuator in the field of valve actuator processing, which comprises a bottom plate, a back plate arranged on the back side of the bottom plate, a back positioning structure arranged in the middle of the front side of the back plate, a lower adjusting structure arranged in the middle of the front side of the bottom plate, and side pressing and fixing structures arranged on two sides of the back plate. A lower pressing and fixing structure is arranged at one end of the bottom plate; the shell and the back plate of the actuator are preliminarily positioned through the rear positioning structure, then the shell and the bottom plate are positioned through the lower adjusting structure, so that the shell is successfully positioned, and then the positioned shell is pressed and fixed to the back plate and the bottom plate through the side pressing and fixing structure and the lower pressing and fixing structure; therefore, the front face and the upper face of the shell are completely exposed in the visual field, finish machining of the two faces is facilitated, meanwhile, due to the fact that the shell is fixed, operation is more convenient, and the problem that the shell deviates during operation does not need to be worried about.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning tool of valve actuator shell in the field of valve actuator processing. BACKGROUND

[0002] Electric actuator is used to drive valve to full open or full close position, its actuating mechanism can accurately make valve to any position. The actuating mechanism of electric actuator is arranged in shell, and effectively protected by shell, so the assembly of actuator needs a shell with high machining precision. Because the shape of shell is irregular, the machining of shell in prior art can only be placed on workbench, and the shell is held by hand, and the surface to be machined is exposed to view for machining. This operation mode makes the machining efficiency of shell low and the precision insufficient. SUMMARY

[0003] The utility model aims at providing a kind of positioning tool of valve actuator shell, so that the machining efficiency of shell is high, precision is high, and operation is more simple and convenient.

[0004] To achieve the above object, the utility model provides a kind of positioning tool of valve actuator shell, including bottom plate, bottom plate rear side is provided by backboard, the front middle part of backboard is provided with rear positioning structure, the front middle part of bottom plate is provided by lower adjustment structure, the both sides of backboard are provided with side pressure structure, and one end of bottom plate is provided by lower pressure structure.

[0005] Compared with prior art, the utility model has the beneficial effects that the shell of actuator is positioned with backplate by rear positioning structure, then the shell and bottom plate are positioned by lower adjustment structure, so that the shell is positioned successfully, then the positioned shell is pressed and fixed on backplate and bottom plate by side pressure structure and lower pressure structure, so that the front and upper surfaces of shell are completely exposed to view, and then the two surfaces are conveniently finished, and since the shell is fixed, operation is more convenient, and the problem of shell deviation during operation is avoided.

[0006] As a further improvement of the utility model, rear positioning structure includes positioning lug, and the positioning lug is processed into a circular shape. In this way, the circular port of the wiring end of the shell can be inserted into the positioning lug, so that the positional relationship between the shell and the backplate is determined, facilitating subsequent positioning and fixing.

[0007] As a further improvement of the utility model, lower adjustment structure includes a pair of positioning rods, the positioning rods are fixed on the front middle part of the bottom plate, the end of the positioning rod is provided with an adjusting pad, and the adjusting pad is threadedly connected with the end of the positioning rod.

[0008] In this way, when the preliminary positioning is carried out, the adjusting pad can be rotated and screwed down, the circular opening of the shell wiring end is inserted into the positioning protrusion, and the collision or friction between the adjusting pad and the shell is avoided, and after the preliminary positioning, the adjusting pad is screwed up, the top of the adjusting pad is abutted against the bottom of the shell, so that the shell is preliminarily fixed, and subsequent further compression and fixation are facilitated.

[0009] As a further improvement of the utility model, the side compression and fixation structure comprises two groups of side positioning columns which are symmetrically arranged at two ends of the front surface of the back plate, each group of side positioning columns is arranged side by side by two, the end of the side positioning column is provided with a side positioning bolt, and each group of side positioning columns is provided with a side positioning pressing plate matched, a waist-shaped groove matched with the side positioning bolt is formed in the side positioning pressing plate, and the side positioning bolt is matched with a nut.

[0010] In this way, after the shell is preliminarily positioned and fixed, the side positioning pressing plate is arranged on the side positioning column, that is, the side positioning bolt is arranged in the waist-shaped groove, the front end of the side positioning pressing plate is inserted into the inner wall of the middle part of the opening on one side of the shell, the contact position and the contact area of the front end of the side positioning pressing plate and the inner wall of the shell are adjusted by moving the side positioning pressing plate, so that the side positioning pressing plate can be well compressed to the shell, and then the nut is tightened to fix the side positioning pressing plate and the side positioning column, so that one side of the shell is fixed by the side positioning pressing plate, and the other side of the shell is fixed by the other side positioning pressing plate according to the above process, so that the two sides of the shell are completely fixed.

[0011] As a further improvement of the utility model, the side compression and fixation structure comprises two groups of side positioning columns which are symmetrically arranged at two ends of the front surface of the back plate, each group of side positioning columns is arranged side by side by two, the end of the side positioning column is provided with a side positioning bolt, and each group of side positioning columns is provided with a side positioning pressing plate matched, a waist-shaped groove matched with the side positioning bolt is formed in the side positioning pressing plate, and the side positioning bolt is matched with a nut.

[0012] In this way, the lower positioning pressing plate is arranged on the lower positioning column, that is, the lower positioning bolt is arranged in the waist-shaped groove, the front end of the lower positioning pressing plate is inserted into the inner wall of the lower part of the opening on one side of the shell, the contact position and the contact area of the front end of the lower positioning pressing plate and the inner wall of the shell are adjusted by moving the lower positioning pressing plate, so that the lower positioning pressing plate can be well compressed to the lower part of the shell, and then the nut is tightened to fix the lower positioning pressing plate and the lower positioning column, so that the lower part of one side of the shell is fixed by the lower positioning pressing plate.

[0013] As a further improvement of the utility model, the back surface of the back plate is provided with a support frame at two ends, the support frame is a right triangle, the long straight angle side of the support frame is connected with the back plate, and the short straight angle side of the support frame is connected with the bottom plate.

[0014] As a further improvement of the utility model, a plurality of bolt holes are formed on the bottom plate; thus, the bottom plate can be fixed to the workbench through the cooperation of the bolt and the bolt hole. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The utility model discloses a structure schematic diagram after assembly.

[0016] Fig. 2 The utility model discloses a structure schematic diagram before assembly.

[0017] Fig. 3 The utility model discloses a structure schematic diagram.

[0018] Wherein, 1 backboard, 2 shell, 3 side positioning pressboard, 4 waist type slot, 5 side positioning bolt, 6 side positioning column, 7 bottom plate, 8 positioning rod, 9 adjusting pad, 10 lower positioning bolt, 11 lower positioning column, 12, positioning boss, 13 bolt hole, 14 lower positioning pressboard, 15 support frame. IMPLEMENTATION

[0019] The utility model is further explained in connection with the drawings:

[0020] As Figs. 1-3 The utility model discloses a positioning tool of valve actuator shell, including bottom plate 7, bottom plate 7 rear side sets up by backboard 1, the front middle part of backboard 1 sets up rear positioning structure, the front middle part of bottom plate 7 sets up by lower adjustment structure, the both sides of backboard 1 are provided with side pressure solid structure, and one end of bottom plate 7 sets up by lower pressure solid structure.

[0021] Rear positioning structure includes positioning boss 12, and positioning boss 12 is processed into circular shape;Lower adjustment structure includes a pair of positioning rod 8, and positioning rod 8 is fixed in the front middle part of bottom plate 7, and the end of positioning rod 8 is equipped with adjusting pad 9, and adjusting pad 9 is connected in screw thread with the end of positioning rod 8.

[0022] Side pressure solid structure includes two groups of side positioning column 6, and is respectively arranged in the both ends of the front of backboard 1 symmetrically, and each group of side positioning column 6 is side by side and is provided with two, and the end of side positioning column 6 is provided with side positioning bolt 5, and each group of side positioning column 6 is equipped with a side positioning pressboard 3, and the side positioning pressboard 3 is provided with waist type slot 4 matched with side positioning bolt 5, and side positioning bolt 5 is equipped with nut.

[0023] Lower pressure solid structure includes two lower positioning columns 11, and lower positioning column 11 is side by side and is arranged in one end of bottom plate 7, and the end of lower positioning column 11 is provided with lower positioning bolt 10, and lower positioning column 11 is equipped with lower positioning pressboard 14, and lower positioning pressboard 14 is provided with waist type slot 4 matched with lower positioning bolt 10, and lower positioning bolt 10 is equipped with nut.

[0024] The back plate 1 is provided with a support frame 15 at both ends of the back, the support frame 15 is a right triangle, the long straight angle side of the support frame 15 is connected with the back plate 1, and the short straight angle side of the support frame 15 is connected with the bottom plate 7; a plurality of bolt holes 13 are formed in the bottom plate 7.

[0025] During operation, the bottom plate 7 is fixed on the workbench through the cooperation of the bolt and the bolt hole 13, the two side positioning pressing plates 3 are separated from the side positioning columns 6, the lower positioning pressing plate 14 is separated from the lower positioning column 11, the adjusting pad 9 is screwed downward, the shell 2 to be processed is taken, the circular opening of the wire inlet end of the shell 2 is aligned with the positioning protrusion 12 on the back plate 1, the circular opening is inserted with the positioning protrusion 12, the adjusting pad 9 is screwed upward, the adjusting pad 9 moves upward and abuts against the bottom of the shell 2, so that the wire inlet end of the shell 2 is inserted with the positioning protrusion 12 and the bottom is abutted against the adjusting pad 9, thereby being preliminarily positioned and fixed.

[0026] Then, one side positioning pressing plate 3 is taken out, is assembled through the waist-shaped groove 4 and the side positioning bolt 5, the size of the contact surface between the end of the side positioning pressing plate 3 and the inner wall of one side of the shell 2 is adjusted through horizontal movement of the side positioning pressing plate 3, so that the side positioning pressing plate 3 can tightly press the inner wall of the shell 2, after the position is adjusted, the side positioning bolt 5 is screwed with a nut, and finally the side positioning pressing plate 3 is locked on the side positioning column 6, and the shell 2 is also tightly pressed and fixed on one side through the side positioning pressing plate 3, and the other side of the shell 2 is tightly pressed and fixed through the other side positioning pressing plate 3.

[0027] In order to ensure the stability of the shell 2 during processing, the lower positioning pressing plate 14 is assembled through the waist-shaped groove 4 and the lower positioning bolt 10, the lower positioning pressing plate 14 is installed on the lower positioning column 11, the size of the contact surface between the end of the lower positioning pressing plate 14 and the lower part of the inner wall of one side of the shell 2 is adjusted through horizontal movement of the lower positioning pressing plate 14, so that the lower positioning pressing plate 14 can tightly press the lower part of the inner wall of the shell 2, and then the lower positioning bolt 10 is screwed with a nut, the lower positioning pressing plate 14 is fixed with the lower positioning column 11, so that the lower positioning pressing plate 14 tightly presses the lower part of the inner wall of one side of the shell 2.

[0028] In this way, the shell 2 is positioned and fixed between the back plate 1 and the bottom plate 7, the top and the front of the shell 2 under the assembly structure are completely exposed, so that the two faces to be processed are conveniently machined.

[0029] The utility model discloses, can according to the modeling feature of shell 2, position and fix shell 2, thereby conveniently process the two faces that need to be processed, in the processing, shell 2 assembly firm will not appear to shake, need not use hand again, liberate both hands, not only operation is more convenient and can improve processing accuracy.

[0030] The utility model discloses not limited to the above embodiment, on the basis of the technical scheme of the present disclosure, the technical personnel in the art can make some replacement and deformation to some technical features in it according to the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. A positioning fixture for a valve actuator housing, characterized by, The back plate is provided with a rear positioning structure in the middle of the front face, the front side middle part of the bottom plate is provided with a lower adjusting structure, and the two sides of the back plate are provided with side pressing structures.

2. The positioning tool for a valve actuator housing of claim 1, wherein: The rear positioning structure comprises positioning lugs which are circular.

3. The positioning tool for a valve actuator housing of claim 2, wherein: The lower adjusting structure comprises a pair of positioning rods which are fixed to the front side middle part of the bottom plate, and the ends of the positioning rods are provided with adjusting pads which are threadedly connected to the ends of the positioning rods.

4. The positioning tool for a valve actuator housing of claim 3, wherein: The side pressing structure comprises two groups of side positioning columns which are symmetrically arranged at the two ends of the front face of the back plate, each group of side positioning columns is provided with two side positioning columns arranged side by side, the ends of the side positioning columns are provided with side positioning bolts, each group of side positioning columns is provided with a side positioning pressing plate, the side positioning pressing plate is provided with a waist-shaped groove matched with the side positioning bolt, and the side positioning bolt is provided with a nut.

5. The valve actuator housing positioning fixture of claim 4, wherein: The lower pressing structure comprises two lower positioning columns which are arranged side by side at one end of the bottom plate, the ends of the lower positioning columns are provided with lower positioning bolts, the lower positioning columns are provided with a lower positioning pressing plate, the lower positioning pressing plate is provided with a waist-shaped groove matched with the lower positioning bolt, and the lower positioning bolt is provided with a nut.

6. A valve actuator housing positioning fixture according to claim 5, wherein: The back plate is provided with support frames at the two ends of the back face, the support frames are right-angled triangles, the long straight angle sides of the support frames are connected with the back plate, and the short straight angle sides of the support frames are connected with the bottom plate.

7. A valve actuator housing positioning fixture according to claim 6, wherein: A plurality of bolt holes are formed in the bottom plate.

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