Positioning tool for valve machining

Abstract

The utility model discloses a positioning tool for valve machining, which belongs to the technical field of valves and comprises a machining table, sliding grooves which are oppositely arranged are formed in the top end of the machining table, limiting assemblies are arranged in the sliding grooves, a clamping and positioning assembly is arranged at the top end of the machining table, and the clamping and positioning assembly comprises U-shaped connecting plates which are oppositely arranged above the machining table. Arc-shaped clamping plates are fixedly connected to the two ends of the U-shaped connecting plate, driving assemblies are oppositely arranged at the top end of the machining table, and the driving assemblies are connected with the U-shaped connecting plate through rotating connecting pieces. The clamping and positioning assembly, the rotating connecting piece and the driving assembly are arranged, the states of an arc-shaped clamping plate and a rubber block in the clamping and positioning assembly are changed through the rotating connecting piece, and the driving assembly drives the arc-shaped clamping plate and the rubber block to move to clamp and fix a non-rising stem gate valve and a flange check valve. Therefore, a clamp of the valve does not need to be replaced, time and labor are saved, and meanwhile the machining efficiency of the valve is improved.

Description

Technical Field

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

[0002] A valve is a device used to control media such as gas, liquid, and gas or liquid containing solid powder in various pipelines and equipment. A valve is usually composed of a valve body, a valve cover, a valve seat, an opening and closing member, a driving mechanism, a seal, and fasteners.

[0003] When it is necessary to punch holes in the flanges at both ends and the top of the valve, the valve needs to be clamped and fixed. The existing positioning fixture for valve processing can only clamp and fix one type of valve. When different types of valves need to be clamped and fixed (such as: concealed stem gate valve, flange check valve), the fixture does not match the valve, so it is necessary to replace the fixture to facilitate the clamping and fixing of different types of valves. Replacing the fixture is time-consuming and laborious, and it also reduces the processing efficiency of the valve. Therefore, a positioning tool for valve processing is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problems in the above-mentioned technology and proposes a positioning tool for valve processing.

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

[0006] A positioning tool for valve processing, comprising a processing table, the top of the processing table is provided with relatively arranged sliding grooves, a limit assembly is arranged in the sliding groove, the top of the processing table is provided with a clamping and positioning assembly, the clamping and positioning assembly comprises U-shaped connecting plates relatively arranged above the processing table, both ends of the U-shaped connecting plates are fixedly connected with arc-shaped clamping plates, the inner surface of the arc-shaped clamping plates is provided with rubber blocks, and the top of the processing table is relatively provided with a driving assembly, and the driving assembly is connected to the U-shaped connecting plate by a rotating connecting piece.

[0007] Preferably, an arc-shaped limiting ring is provided at the top of the processing table, and an arc-shaped baffle is fixedly connected to the surface of the arc-shaped limiting ring.

[0008] Preferably, the limiting assembly comprises a sliding block slidably connected in the sliding groove and fixedly connected to the arc-shaped limiting ring, and a limiting spring is fixedly connected between a side surface of the sliding groove and one end of the sliding block.

[0009] Preferably, the driving assembly includes a vertical plate fixedly connected to the top of the processing table and arranged opposite to each other, one end of the vertical plate is fixedly connected to a hydraulic cylinder, and the rotating connecting member includes a hollow tube fixedly connected to one end of a U-shaped connecting plate.

[0010] Preferably, one end of the hydraulic cylinder extends to the inner wall of the hollow tube and is rotatably connected to the inner wall of the hollow tube, a guide groove is provided at the top of the processing table, and a guide plate rotatably connected to the surface of the hollow tube and slidably connected to the guide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with a clamping and positioning component, a rotating connecting piece and a driving component. The state of the arc clamping plate and the rubber block in the clamping and positioning component is changed by the rotating connecting piece, and the arc clamping plate and the rubber block are driven by the driving component to move to clamp and fix the concealed stem gate valve and the flange check valve, thereby eliminating the need to replace the valve fixture, saving time and effort while improving the processing efficiency of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of a clamping and fixing structure of a concealed-stem gate valve in a positioning tool for valve processing proposed by the utility model.

[0014] Figure 2 The utility model is a schematic diagram of a clamping and fixing structure of a flange check valve in a positioning tool for valve processing.

[0015] Figure 3 The utility model is a structural schematic diagram of a positioning tool for valve processing.

[0016] Figure 4 The utility model discloses a structural schematic diagram of a hydraulic cylinder, an arc-shaped clamping plate and a rubber block in a positioning tool for valve processing.

[0017] In the figure: 1. processing table; 2. arc-shaped limit ring; 3. arc-shaped baffle; 4. limit spring; 5. vertical plate; 6. hydraulic cylinder; 7. guide plate; 8. U-shaped connecting plate; 9. arc-shaped clamping plate; 10. rubber block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-4A positioning tool for valve processing, comprising a processing table 1, a relatively arranged sliding groove is provided at the top of the processing table 1, a clamping and positioning component is provided at the top of the processing table 1 (the clamping and positioning component clamps and fixes the concealed stem gate valve and the flange check valve, so as to facilitate their processing), the clamping and positioning component comprises a U-shaped connecting plate 8 relatively arranged above the processing table 1, and arc-shaped clamping plates 9 are fixedly connected at both ends of the U-shaped connecting plate 8 (the arc-shaped clamping plates 9 are made of rubber material and have certain elasticity), and a rubber block 10 is provided on the inner surface of the arc-shaped clamping plate 9 (the arc-shaped clamping plates 9 and the rubber block 10 clamp and fix the concealed stem gate valve and the flange check valve);

[0020] A driving assembly is arranged relatively to the top of the processing table 1 (the driving assembly drives the arc clamping plate 9 and the rubber block 10 to move and clamp the valve). The driving assembly includes a vertical plate 5 fixedly connected to the top of the processing table 1 and arranged relatively, and a hydraulic cylinder 6 is fixedly connected to one end of the vertical plate 5.

[0021] Furthermore, a limiting assembly is arranged in the sliding groove, an arc-shaped limiting ring 2 is arranged on the top of the processing table 1 (the arc-shaped limiting ring 2 can limit the valve), an arc-shaped baffle 3 is fixedly connected to the surface of the arc-shaped limiting ring 2 (the arc-shaped baffle 3 can prevent the valve from rolling on the processing table 1), and the limiting assembly includes a sliding block slidably connected in the sliding groove and fixedly connected to the arc-shaped limiting ring 2, and a limiting spring 4 is fixedly connected between one side surface of the sliding groove and one end of the sliding block.

[0022] It should be noted that: the driving assembly is connected to the U-shaped connecting plate 8 by a rotating connecting piece (the rotating connecting piece can make the U-shaped connecting plate 8, the arc-shaped clamping plate 9 and the rubber block 10 rotate, so as to achieve clamping and fixing of both the concealed-stem gate valve and the flange check valve), the rotating connecting piece includes a hollow tube fixedly connected to one end of the U-shaped connecting plate 8, one end of the hydraulic cylinder 6 extends to the inner wall of the hollow tube and is rotatably connected to the inner wall of the hollow tube, a guide groove is provided at the top of the processing table 1, and a guide plate 7 slidably connected to the guide groove is rotatably connected to the surface of the hollow tube.

[0023] A further advantage of adopting the above is that the above device can clamp and fix both the concealed stem gate valve and the flange check valve, thereby eliminating the need to replace the valve fixture, which saves time and effort while improving the processing efficiency of the valve.

[0024] When the utility model is used: when it is necessary to process the concealed stem gate valve (the valve body of the concealed stem gate valve is in the shape of a straight cylinder), the staff uses the flanges at both ends of the concealed stem gate valve to push the two arc-shaped limit rings 2 and the arc-shaped baffle plate 3 to both sides, and places the concealed stem gate valve on the processing table 1, and at the same time, the elastic force of the limit spring 4 drives the arc-shaped limit ring 2 and the arc-shaped baffle plate 3 to reset and move to the middle, so that the arc-shaped limit ring 2 contacts the flange and the flange is located in the arc-shaped baffle plate 3;

[0025] Then the staff starts the two hydraulic cylinders 6, and the two hydraulic cylinders 6 drive the two U-shaped connecting plates 8 to move, and the movement of the two U-shaped connecting plates 8 drives the four arc clamping plates 9 and the rubber block 10 in the arc clamping plates 9 to move, and the arc clamping plates 9 are moved to the surface of the dark-stem gate valve, so that the arc clamping plates 9 and the rubber block 10 are clamped on the surface of the dark-stem gate valve, and the dark-stem gate valve is clamped and fixed by the four arc clamping plates 9 and the rubber block 10, and then the staff can use the processing tools to process the dark-stem gate valve;

[0026] When it is necessary to process the flange check valve (the valve body of the flange check valve is an arc-shaped sphere, and compared with the straight cylinder of the concealed stem gate valve, the valve body of the flange check valve has a certain curvature), the staff places the flange check valve on the processing table 1, and the limiting method of the flange check valve is the same as the limiting method of the concealed stem gate valve mentioned above. Then the staff rotates the two U-shaped connecting plates 8, and the rotation of the two U-shaped connecting plates 8 drives the four arc-shaped clamping plates 9 and the four rubber blocks 10 to rotate. The U-shaped connecting plates 8, the arc-shaped clamping plates 9 and the rubber blocks 10 can be rotated 90 degrees, so that the U-shaped connecting plates 8, the arc-shaped clamping plates 9 and the rubber blocks 10 are changed from a vertical state to a horizontal state. Then the staff starts the hydraulic cylinder 6, and the hydraulic cylinder 6 drives the arc-shaped clamping plates 9 and the rubber blocks 10 to move, so as to clamp and fix the flange check valve, and then the staff can process it.

[0027] The above device can clamp and fix both the concealed stem gate valve and the flange check valve, so there is no need to replace the valve fixture, which saves time and labor while improving the processing efficiency of the valve.

[0028] 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 valve processing, comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with a sliding groove arranged opposite to each other, a limit assembly is arranged in the sliding groove, the top of the processing table (1) is provided with a clamping and positioning assembly, the clamping and positioning assembly comprises a U-shaped connecting plate (8) arranged opposite to each other above the processing table (1), both ends of the U-shaped connecting plate (8) are fixedly connected with an arc-shaped clamping plate (9), the inner surface of the arc-shaped clamping plate (9) is provided with a rubber block (10), and the top of the processing table (1) is provided with a driving assembly opposite to each other, and the driving assembly is connected to the U-shaped connecting plate (8) via a rotating connecting piece.

2. A valve processing positioning tool according to claim 1, characterized in that: An arc-shaped limiting ring (2) is arranged at the top end of the processing table (1), and an arc-shaped baffle (3) is fixedly connected to the surface of the arc-shaped limiting ring (2).

3. A valve processing positioning tool according to claim 2, characterized in that: The limiting assembly comprises a sliding block which is slidably connected in a sliding groove and fixedly connected to an arc-shaped limiting ring (2); a limiting spring (4) is fixedly connected between a side surface of the sliding groove and one end of the sliding block.

4. A positioning tool for valve processing according to claim 1, characterized in that: The driving assembly comprises a vertical plate (5) fixedly connected to the top of the processing table (1) and arranged opposite to each other, one end of the vertical plate (5) is fixedly connected to a hydraulic cylinder (6), and the rotating connecting member comprises a hollow tube fixedly connected to one end of a U-shaped connecting plate (8).

5. A valve processing positioning tool according to claim 4, characterized in that: One end of the hydraulic cylinder (6) extends to the inner wall of the hollow tube and is rotatably connected to the inner wall of the hollow tube. A guide groove is provided at the top of the processing table (1). A guide plate (7) slidably connected to the guide groove is rotatably connected to the surface of the hollow tube.

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