Positioning tool for valve ball polishing

Abstract

The utility model relates to the technical field of valve ball positioning, in particular to a positioning tool for valve ball polishing, which comprises a main body with two normally-open ends, two groups of clamping blocks are slidably mounted in sliding grooves, an electric telescopic rod is slidably mounted in a first sliding groove, a clamping mechanism for controlling the clamping blocks to slide is arranged in the main body, and the electric telescopic rod is slidably mounted in a second sliding groove. A driving motor is fixedly mounted on the clamping block, and a rotating mechanism which is used for controlling the valve ball to rotate and is driven by the driving motor is arranged on the clamping block. The transmission rod is controlled by the electric telescopic rod to deflect so as to control the clamping block to slide, so that the clamping distance can be freely adjusted according to the size of a valve ball, and the sliding stability of the clamping block can be enhanced through the connection of the cross rod and the sliding cylinder; the driving motor indirectly controls the driving gear to rotate, then the driven gear ring drives the abutting column to rotate so as to control the ball valve to rotate, and the driving gear is of a half-gear-tooth structure, so that rotation is controlled to be intermittent.

Description

Technical Field

[0001] The utility model relates to the technical field of valve ball positioning, in particular to a positioning tool for valve ball polishing. Background Art

[0002] During the production process, the surface of the valve ball often needs to be polished. During polishing, the valve ball needs to be clamped and fixed to prevent the ball from shifting.

[0003] Existing valve ball positioning technology often adopts a valve ball polishing positioning tool as disclosed in announcement number CN218927426U, which arranges a positioning piece on the clamping piece, and the positioning piece can move along the clamping piece. Therefore, when positioning a valve ball with a larger flow channel or positioning groove, the positioning piece can extend into the flow channel or positioning groove of the valve ball along the clamping piece to increase the contact area between the positioning fixture and the valve ball, thereby improving the clamping force on the valve ball and making the positioning of the valve ball more stable. However, when it is necessary to adjust the polishing angle of the valve ball, the valve ball needs to be removed and reinstalled, which is an extremely troublesome process, thereby affecting the polishing efficiency of the ball valve. Utility Model Content

[0004] The utility model aims to solve the problem that the polishing angle cannot be freely adjusted in the prior art, and proposes a positioning tool for polishing a valve ball.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A positioning tool for polishing a valve ball comprises a main body with openings at both ends, a first slide groove and a second slide groove being provided in the main body, a boss being provided at the top of the main body, a guide groove being provided on the boss, two groups of clamping blocks being slidably installed in the guide groove, an electric telescopic rod being slidably installed in the first slide groove, a clamping mechanism for controlling the sliding of the clamping block being provided in the main body, a driving motor being fixedly installed on the clamping block, and a rotating mechanism for controlling the rotation of the valve ball and driven by the driving motor being provided on the clamping block.

[0007] Preferably, the first sliding groove and the second sliding groove are curved structures, and the clamping block is an L-shaped structure.

[0008] Preferably, the clamping mechanism comprises two sets of transmission rods with pins installed at both ends of the electric telescopic rod, the transmission rod is composed of a cross bar and an L-shaped connecting rod, the middle end of the transmission rod is connected to a pin on one side of the main body, and the free end pin of the L-shaped connecting rod is installed with a first connecting rod connected to the pin of the clamping block;

[0009] A support rod is welded inside the main body, a slide cylinder is slidably mounted on the support rod, and a second connecting rod connected to the crossbar pin is mounted on a pin on the slide cylinder.

[0010] Preferably, the rotating mechanism includes circular slots provided on two groups of clamping blocks, a turntable is rotatably installed in the circular slot on one side, a driving wheel matched with an output end of a driving motor is rotatably installed in the circular slot on the other side, an internal gear ring that is rotatably installed in the circular slot on the other side and is in contact with the driving wheel, a driving gear is fixedly installed on the driving wheel, a driven gear ring that is meshed with the driving gear is fixedly installed on the internal gear ring, a triangular frame is fixedly installed on the driven gear ring, and a contact column for contacting a valve ball is welded on the triangular frame and the turntable.

[0011] Preferably, the driving wheel is eccentrically arranged with the inner gear ring, and the driving wheel is a structure with an obtuse-angle notch.

[0012] Preferably, the driving gear is arranged concentrically with the driving wheel, the driving gear is a half-tooth structure, and the teeth of the driving gear are located at the notch of the driving wheel.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model controls the transmission rod to deflect by an electric telescopic rod to control the sliding of the clamping block, so that the clamping distance can be freely adjusted according to the size of the valve ball, and the sliding stability of the clamping block can be enhanced by connecting the cross bar and the slide cylinder.

[0015] 2. The utility model indirectly controls the rotation of the driving gear by the driving motor, and then drives the resistance column to rotate through the driven gear ring to control the rotation of the ball valve. The driving gear is a half-tooth structure, so the rotation is controlled to be intermittent to prevent the existence of unpolished areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a positioning tool for valve ball polishing proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the inner wall slide groove structure of a main body of a positioning tool for valve ball polishing proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a clamping mechanism of a positioning tool for polishing a valve ball proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the transmission rod structure of a positioning tool for valve ball polishing proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the rotating mechanism structure of a positioning tool for valve ball polishing proposed by the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of an internal gear ring and a driving wheel of a positioning tool for valve ball polishing proposed by the utility model;

[0022] Figure 7 The utility model provides a schematic diagram of the structure of a driving gear and a driven gear ring of a positioning tool for valve ball polishing.

[0023] In the figure: 1. main body; 101. first slide groove; 102. second slide groove; 2. boss; 3. guide groove; 4. clamping block; 401. circular slot; 5. electric telescopic rod; 6. driving motor; 7. transmission rod; 701. cross bar; 702. L-shaped connecting rod; 8. first connecting rod; 9. supporting rod; 10. slide cylinder; 11. second connecting rod; 12. inner gear ring; 13. driving gear; 14. driven gear ring; 15. triangular frame; 16. abutment column; 17. turntable; 18. driving wheel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 7 A positioning tool for polishing a valve ball comprises a main body 1 with openings at both ends, a first slide groove 101 and a second slide groove 102 are provided in the main body 1, the first slide groove 101 and the second slide groove 102 are curved structures, and the first slide groove 101 and the second slide groove 102 are provided according to the movement trajectory of the parts, which can play a supporting and guiding role, a boss 2 is provided at the top of the main body 1, a guide groove 3 is provided on the boss 2, two groups of clamping blocks 4 are slidably installed in the guide groove 3, the clamping block 4 is an L-shaped structure, an electric telescopic rod 5 is slidably installed in the first slide groove 101, a clamping mechanism for controlling the sliding of the clamping block 4 is provided in the main body 1, a driving motor 6 is fixedly installed on the clamping block 4, and a rotating mechanism for controlling the rotation of the valve ball and driven by the driving motor 6 is provided on the clamping block 4, the valve ball is spherical as a whole, and there are cylindrical grooves on both sides, and the valve ball is fixed on the device by applying a clamping force in the groove.

[0026] The clamping mechanism includes two sets of transmission rods 7 with pins installed at both ends of the electric telescopic rod 5. The transmission rod 7 is composed of a cross bar 701 and an L-shaped connecting rod 702. The middle end of the transmission rod 7 is connected to a pin on one side of the main body 1. The free end pin of the L-shaped connecting rod 702 is installed with a first connecting rod 8 connected to the pin of the clamping block 4. When the entire transmission rod 7 swings, the lever principle is adopted, with the electric telescopic rod 5 as the force application point, the connection point between the transmission rod 7 and the main body 1 as the fulcrum, and the top of the L-shaped connecting rod 702 as the force point, to control the clamping block 4 to slide;

[0027] A support rod 9 is welded inside the main body 1, and a slide cylinder 10 is slidably installed on the support rod 9. A second connecting rod 11 connected to the pin of the cross bar 701 is installed on the slide cylinder 10. The guide connection is carried out through the slide cylinder 10 to ensure the synchronization of the movement of the two groups of transmission rods 7, so as to enhance the sliding stability of the clamping block 4.

[0028] The rotating mechanism includes circular slots 401 opened on two groups of clamping blocks 4, a turntable 17 is rotatably installed in the circular slot 401 on one side, a driving wheel 18 matched with the output end of the driving motor 6 is rotatably installed in the circular slot 401 on the other side, and an internal gear ring 12 that is in contact with the driving wheel 18 is rotatably installed in the circular slot 401 on the other side. When the driving wheel 18 rotates, its curved surface will fit with the inner curved surface of the internal gear ring 12, which makes the rotation more stable. A driving gear 13 is fixedly installed on the driving wheel 18, a driven gear ring 14 that is meshed with the driving gear 13 is fixedly installed on the internal gear ring 12, a triangular frame 15 is fixedly installed on the driven gear ring 14, and a resistance column 16 for resisting the valve ball is welded on the triangular frame 15 and the turntable 17.

[0029] The driving wheel 18 is eccentrically arranged with the inner gear ring 12. The driving wheel 18 is a structure with an obtuse-angled notch. The driving gear 13 is concentrically arranged with the driving wheel 18. The driving gear 13 is a semi-tooth structure, and the teeth of the driving gear 13 are located at the notch of the driving wheel 18. The gear transmission itself has the characteristic of high stability, and the structural size of each tooth is the same, which ensures that the valve ball rotates at the same angle each time when the rotating mechanism is in operation.

[0030] It should be noted that the specific model and specifications of the drive motor 6 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] The electric telescopic rod 5 is controlled to extend. At this time, the transmission rod 7 will swing along the first slide groove 101 and the second slide groove 102, and the slide cylinder 10 will also be pulled and slide downward, and the two groups of clamping blocks 4 will move toward each other through the first connecting rod 8, thereby fixing the valve ball between the abutment columns 16;

[0033] When the driving motor 6 is turned on, the driving wheel 18 drives the driving gear 13 to rotate. At this time, the driving wheel 18 will rotate in contact with the inner side of the inner gear ring 12, and the driving gear 13 will drive the driven gear ring 14 to rotate, thereby driving the triangular frame 15 to rotate, thereby driving the ball valve clamped between the abutment columns 16 to rotate intermittently.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning tool for polishing a valve ball, comprising a main body (1) with two ends being normally open, characterized in that: The main body (1) is provided with a first slide groove (101) and a second slide groove (102); a boss (2) is provided at the top end of the main body (1); a guide groove (3) is provided on the boss (2); two groups of clamping blocks (4) are slidably installed in the guide groove (3); an electric telescopic rod (5) is slidably installed in the first slide groove (101); a clamping mechanism for controlling the sliding of the clamping block (4) is provided in the main body (1); a driving motor (6) is fixedly installed on the clamping block (4); and a rotating mechanism for controlling the rotation of the valve ball and driven by the driving motor (6) is provided on the clamping block (4).

2. A positioning tool for valve ball polishing according to claim 1, characterized in that: The first sliding groove (101) and the second sliding groove (102) are curved structures, and the clamping block (4) is an L-shaped structure.

3. A positioning tool for valve ball polishing according to claim 1, characterized in that: The clamping mechanism comprises two sets of transmission rods (7) with pins installed at both ends of the electric telescopic rod (5), the transmission rod (7) being composed of a cross rod (701) and an L-shaped connecting rod (702), the middle end of the transmission rod (7) being connected to a pin on one side of the main body (1), and the free end pin of the L-shaped connecting rod (702) being installed with a first connecting rod (8) connected to a pin of the clamping block (4); A support rod (9) is welded inside the main body (1), a slide cylinder (10) is slidably mounted on the support rod (9), and a second connecting rod (11) connected to the cross rod (701) is pin-mounted on the slide cylinder (10).

4. A positioning tool for valve ball polishing according to claim 1, characterized in that: The rotating mechanism comprises circular slots (401) provided on two groups of clamping blocks (4), a rotating disk (17) being rotatably mounted in the circular slots (401) on one side, a driving wheel (18) matched with an output end of a driving motor (6) being rotatably mounted in the circular slots (401) on the other side, an inner gear ring (12) being rotatably mounted in the circular slots (401) on the other side and being in contact with the driving wheel (18), a driving gear (13) being fixedly mounted on the driving wheel (18), a driven gear ring (14) being meshed with the driving gear (13) being fixedly mounted on the inner gear ring (12), a triangular frame (15) being fixedly mounted on the driven gear ring (14), and a contact column (16) for contacting a valve ball being welded on the triangular frame (15) and the rotating disk (17).

5. A positioning tool for valve ball polishing according to claim 4, characterized in that: The driving wheel (18) is eccentrically arranged with the inner gear ring (12), and the driving wheel (18) is a structure with an obtuse-angle notch.

6. A positioning tool for valve ball polishing according to claim 4, characterized in that: The driving gear (13) is arranged concentrically with the driving rotating wheel (18); the driving gear (13) is a half-tooth structure, and the teeth of the driving gear (13) are located at the notch of the driving rotating wheel (18).

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