Clamp for machining end face of stop valve body

Abstract

The utility model provides a clamp for machining the end face of a stop valve body, and relates to the technical field of clamps. The clamp body is provided with a fixed bearing plate in the left-right direction, vertically-through fixing holes are formed in the four corners of the fixed bearing plate correspondingly, half-round head blocks with left-right through holes are arranged in the middles of the left end and the right end of the top end face of the fixed bearing plate correspondingly, and clamping rotating rods in the left-right direction are installed between the half-round head blocks of the fixed bearing plate through bearings. The outer circumferences of the left side and the right side of the clamping rotating rod are provided with threads which rotate oppositely, and the left end face and the right end face of the clamping rotating rod are provided with fixing columns, so that the clamping bearing plate is conveniently installed on the fixed bearing plate through the clamping rotating rod, and the clamping bearing plate is conveniently engaged with the threads to synchronously move inwards and outwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, in particular to a clamp for machining the end face of a stop valve body. Background Art

[0002] The stop valve is a forced sealing valve. Its opening and closing part is a plug-shaped valve disc with a flat or conical sealing surface. The valve disc moves linearly along the center line of the fluid. It relies on the pressure of the valve stem to make the valve disc sealing surface fit tightly with the valve seat sealing surface, thereby preventing the flow of medium. After the stop valve body is cast, the end face of the valve body is relatively rough and needs to be processed. The valve body end face needs to be fixed by a clamp during processing.

[0003] Based on the above, the inventors found that the existing stop valve body end face machining fixture has the following shortcomings:

[0004] 1. It is impossible to keep the valve body in the middle position of the fixture all the time, which results in the need to reposition the valve body every time it is processed. It is not convenient to add synchronous mobile clamping measures to the fixture to keep the valve body in the middle position of the fixture all the time.

[0005] 2. It is impossible to expose the three end faces of the stop valve body at the same time, resulting in the need for multiple disassembly and assembly of the valve body end face processing. It is not convenient to clamp and fix the three ends of the valve body at the same time through the clamping structure and expose the processed end face of the valve body. Utility Model Content

[0006] In order to solve the above technical problems at least to a certain extent, the utility model provides a fixture for machining the end face of a stop valve body.

[0007] The purpose and effect of the fixture for machining the end face of the stop valve body of the utility model are achieved by the following specific technical means:

[0008] A fixture for machining the end face of a stop valve body comprises a fixture body; the fixture body is provided with a fixed supporting plate in the left and right directions, and the four corners of the fixed supporting plate are provided with fixing holes that penetrate up and down, and the middle of the left and right ends of the top end face of the fixed supporting plate are provided with semicircular head blocks with left and right through holes, and a clamping rotating rod in the left and right directions is installed between the semicircular head blocks of the fixed supporting plate through bearings, and the outer circumferences of the left and right sides of the clamping rotating rod are provided with screw threads that rotate in opposite directions, and the left and right end faces of the clamping rotating rod are provided with fixing columns, and the outer end faces of the fixing columns of the clamping rotating rod are provided with regular hexagonal prisms, and the outer circumferences of the left and right sides of the clamping rotating rod are provided with clamping supporting plates in the front and rear directions through threads, a clamping screw hole that penetrates left and right is opened in the middle of the bottom of the clamping supporting plate, an adjusting screw hole that penetrates left and right is opened in the middle of the top of the clamping supporting plate, and square holes that penetrate left and right are opened on the front and back of the top of the clamping supporting plate, and a semicircular head block with front and rear through holes is arranged in the middle of the front and rear ends of the inner end face of the clamping supporting plate.

[0009] Furthermore, a V-shaped groove is provided on the inner end surface of the movable clamping plate and passes through the inner end surface of the movable clamping plate, and square rods are provided on the front and rear of the outer end surface of the movable clamping plate and on the left and right sides.

[0010] Furthermore, a movable clamping plate in the front-to-back direction is mounted on the fixed column of the clamping adjustment rod via a bearing, and a fixed cylinder in the left-to-right direction is arranged in the middle of the outer end surface of the movable clamping plate.

[0011] Furthermore, a clamping adjustment rod in the left and right directions is installed inside the adjustment screw hole of the clamping bearing plate, a thread is opened on the outer circumference of the clamping adjustment rod, a fixing column is arranged on the inner end surface of the clamping adjustment rod, and a regular hexagonal prism is arranged on the outer end surface of the clamping adjustment rod.

[0012] Furthermore, the outer circumferences of the front and rear sides of the position adjustment rod are threadedly mounted with valve body clamping plates in the up and down directions, a threaded hole running through the middle of the outer end of the valve body clamping plate is opened, and a V-shaped groove running through the front and back is opened on the inner end surface of the valve body clamping plate.

[0013] Furthermore, the front and rear end surfaces of the position adjustment rod are both provided with fixing columns, and the outer end surface of the fixing column of the position adjustment rod is provided with a regular hexagonal prism.

[0014] Furthermore, a position adjustment rod in the front-to-back direction is installed between the semicircular head blocks of the clamping bearing plate through a bearing, and threads with opposite rotation directions are provided on the outer circumferences of the front and rear sides of the position adjustment rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The convenient clamping load plate is installed on the fixed load plate through the clamping rotating rod, and the convenient clamping load plate is synchronously moved inward and outward through threaded engagement, which solves the problem that the valve body cannot always be in the middle position of the fixture, resulting in the need for repositioning for each processing, and it is inconvenient to add synchronous moving clamping measures on the fixture to keep the valve body always in the middle position of the fixture.

[0017] The three ends of the stop valve body can be clamped and fixed at the same time by the valve body clamping plate and the movable clamping plate, so that the three end faces of the stop valve body are all exposed for processing, which solves the problem that the three end faces of the stop valve body cannot be exposed at the same time, resulting in multiple disassembly and assembly of the valve body end face processing, and it is inconvenient to clamp and fix the three ends of the valve body at the same time by the clamping structure and expose the processed end face of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the disassembled structure of the utility model.

[0020] Figure 3It is an assembly schematic diagram of the clamping rotating rod and the clamping bearing plate of the utility model.

[0021] Figure 4 It is an assembly schematic diagram of the position regulating rod and the valve body clamping plate of the utility model.

[0022] Figure 5 It is an assembly schematic diagram of the clamping bearing plate and the clamping adjusting rod of the utility model.

[0023] Figure 6 It is an assembly schematic diagram of the clamping adjustment rod and the movable clamping plate of the utility model.

[0024] In the figure: 1. clamp body; 2. fixed bearing plate; 3. clamping rotating rod; 4. clamping bearing plate; 5. position adjustment rod; 6. valve body clamping plate; 7. clamping adjustment rod; 8. movable clamping plate. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0026] Embodiment 1:

[0027] like Figures 1 to 6 As shown:

[0028] The fixture for machining the end face of the stop valve body provided in the present embodiment comprises a fixture body 1; the fixture body 1 is provided with a fixed bearing plate 2 in the left and right directions, which is convenient for carrying various components; the fixed bearing plate 2 is provided with fixing holes penetrating from top to bottom at four corners, which is convenient for fixing by bolts; semicircular head blocks with left and right penetrating holes are provided in the middle of the left and right ends of the top end face of the fixed bearing plate 2, which is convenient for the clamping and rotating rod 3 to be installed through bearings; the left and right clamping and rotating rods 3 are installed between the semicircular head blocks of the fixed bearing plate 2 through bearings, which is convenient for the clamping and rotating rod 3 to rotate; the outer circumferences on the left and right sides of the clamping and rotating rod 3 are provided with threads rotating in opposite directions, which is convenient for the clamping and rotating rod 3 to move synchronously inward and outward through threaded engagement; the left and right end faces of the clamping and rotating rod 3 are provided with fixing columns, which is convenient for installation through bearings The outer end face of the fixed column of the clamping rotating rod 3 is provided with a regular hexagonal prism, which is convenient for rotation and adjustment through tools. The outer circumferences on both sides of the left and right sides of the clamping rotating rod 3 are installed with clamping bearing plates 4 in the front and rear directions through threads, which is convenient for the clamping bearing plates 4 to move synchronously inward and outward through thread engagement. A clamping screw hole that runs through the left and right is opened in the middle of the bottom of the clamping bearing plate 4, which is convenient for the clamping rotating rod 3 to be installed by thread. An adjustment screw hole that runs through the left and right is opened in the middle of the top of the clamping bearing plate 4, which is convenient for the clamping and adjusting rod 7 to be installed by thread. Square holes that run through the left and right are opened on the front and back of the top of the clamping bearing plate 4, which is convenient for the square rod of the mobile clamping plate 8 to be inserted into the guide. A semicircular head block with front and rear through holes is set in the middle of the front and rear ends of the inner end surface of the clamping bearing plate 4, which is convenient for the position adjustment rod 5 to be installed through a bearing.

[0029] Among them, a position adjusting rod 5 in the front and rear directions is installed between the semicircular head blocks of the clamping bearing plate 4 through bearings, which is convenient for the position adjusting rod 5 to be rotated and adjusted. The outer circumferences on the front and rear sides of the position adjusting rod 5 are provided with threads with opposite rotation directions, which is convenient for the valve body clamping plate 6 to be synchronously moved inward and outward through thread engagement. Fixed columns are provided on the front and rear end faces of the position adjusting rod 5, which is convenient for installation through bearings. The outer end face of the fixed column of the position adjusting rod 5 is provided with a regular hexagonal prism, which is convenient for rotation and adjustment through tools. The outer circumferences on the front and rear sides of the position adjusting rod 5 are provided with valve body clamping plates 6 in the up and down directions through threads, which is convenient for the valve body clamping plates 6 to be synchronously moved inward and outward through thread engagement. A threaded hole that runs through the front and back is provided in the middle of the outer end of the valve body clamping plate 6, which is convenient for the position adjusting rod 5 to be installed through threads. A V-shaped groove that runs through the front and back is provided on the inner end face of the valve body clamping plate 6, which is convenient for the valve body end of the stop valve to be inside and the adjustment of the clamping bearing plate 4. A clamping and adjusting rod 7 in the left and right directions is installed inside the screw hole, which is convenient for driving the mobile clamping plate 8 to move. A thread is opened on the outer circumference of the clamping and adjusting rod 7, which is convenient for moving through thread engagement. A fixing column is set on the inner end surface of the clamping and adjusting rod 7, which is convenient for the mobile clamping plate 8 to be installed through a bearing. A regular hexagonal prism is set on the outer end surface of the clamping and adjusting rod 7, which is convenient for rotation and adjustment through a tool. A mobile clamping plate 8 in the front and rear directions is installed on the fixing column of the clamping and adjusting rod 7 through a bearing, which is convenient for driving the mobile clamping plate 8 to move. A fixing cylinder in the left and right directions is set in the middle of the outer end surface of the mobile clamping plate 8, which is convenient for the clamping and adjusting rod 7 to be installed through a bearing. A V-shaped groove is opened on the inner end surface of the mobile clamping plate 8 that runs through the upper and lower parts, which is convenient for the end of the stop valve body to be inside. Square rods in the left and right directions are set on the outer end surface of the mobile clamping plate 8, which are convenient for inserting into the square hole of the clamping bearing plate 4 to stop and guide the mobile clamping plate 8.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the utility model, Figure 1 The fixture body 1 is in use, and the stop valve body is in a fixed state. The front and rear ends of the stop valve body are clamped and fixed between the valve body clamping plates 6, and the upper end of the stop valve body is clamped and fixed between the movable clamping plates 8, thereby achieving three-end fixation of the stop valve body and exposing the processed end face of the valve body. Figure 1When the stop valve body in the fixture body 1 is disassembled, the clamping rotating rod 3 is rotated by a tool to engage with the clamping bearing plate 4 by thread, so that the clamping bearing plate 4 moves outward synchronously through thread engagement, and the valve body clamping plate 6 and the movable clamping plate 8 are driven to move outward synchronously through the clamping bearing plate 4, thereby releasing the clamping fixation of the end of the stop valve body by the valve body clamping plate 6 and the movable clamping plate 8, and then the stop valve body can be moved upward and removed. When the movable clamping plate 8 is adjusted, the clamping adjusting rod 7 is rotated by a tool to engage with the clamping bearing plate 4 by thread engagement, so that the clamping adjusting rod 7 is engaged with the clamping bearing plate 4 by thread engagement. To move inward or outward, the clamping adjustment rod 7 can be used to drive the movable clamping plate 8 to move inward or outward for adjustment. When the valve body clamping plate 6 is adjusted, the position adjustment rod 5 is rotated by a tool to engage with the valve body clamping plate 6 threadedly, so that the valve body clamping plate 6 can be synchronously moved inward or outward through thread engagement. Note that after the adjustment of the valve body clamping plate 6 and the movable clamping plate 8 is completed, there is no need to adjust the same stop valve body again when clamping it. The synchronous inward and outward movement of the clamping bearing plate 4 makes it convenient to keep the stop valve body in the middle position of the clamp body 1 at all times without the need for repositioning.

[0032] Embodiment 2:

[0033] The difference from the first embodiment is that the regular hexagonal prism of the clamping rotating rod 3 can also be set as a regular heptagonal prism, so that the clamping rotating rod 3 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the clamping rotating rod 3.

[0034] Embodiment three:

[0035] The difference from the first embodiment is that the regular hexagonal prism of the position adjustment rod 5 can also be set as a regular hexagonal prism, so that the position adjustment rod 5 can only be rotated by a special tool that cooperates with the regular hexagonal prism, preventing non-staff from rotating and adjusting the position adjustment rod 5.

Claims

1. A fixture for machining the end face of a stop valve body, characterized in that: The clamp body (1) comprises a fixed bearing plate (2), the fixed bearing plate (2) has four corners with fixing holes extending vertically therethrough, the middle of the left and right ends of the top end surface of the fixed bearing plate (2) are provided with semicircular head blocks with left and right through holes, a clamping rotating rod (3) is installed between the semicircular head blocks of the fixed bearing plate (2) via bearings, the left and right outer circumferences of the clamping rotating rod (3) are provided with threads rotating in opposite directions, and the left and right end surfaces of the clamping rotating rod (3) are provided with fixing columns. The outer end surface of the fixed column of the clamping rotating rod (3) is provided with a regular hexagonal prism, and the outer circumferences of the left and right sides of the clamping rotating rod (3) are both threadedly mounted with clamping bearing plates (4), the middle of the bottom of the clamping bearing plate (4) is provided with a clamping screw hole that passes through left and right, the middle of the top of the clamping bearing plate (4) is provided with an adjustment screw hole that passes through left and right, the top of the clamping bearing plate (4) is provided with square holes that pass through left and right, and the middle of the front and rear ends of the inner end surface of the clamping bearing plate (4) is provided with a semicircular head block with front and rear through holes.

2. The fixture for machining the end surface of the stop valve body according to claim 1, characterized in that: A position adjustment rod (5) is installed between the semicircular head blocks of the clamping bearing plate (4) via a bearing, and threads with opposite rotation directions are provided on the outer circumferences of the front and rear sides of the position adjustment rod (5).

3. The fixture for machining the end surface of the stop valve body according to claim 2, characterized in that: The front and rear end surfaces of the position adjustment rod (5) are both provided with fixing columns, and the outer end surface of the fixing column of the position adjustment rod (5) is provided with a regular hexagonal prism.

4. The fixture for machining the end surface of the stop valve body according to claim 3, characterized in that: The outer circumferences of the front and rear sides of the position adjustment rod (5) are both threadedly mounted with valve body clamping plates (6), the middle of the outer end of the valve body clamping plate (6) is provided with a threaded hole that passes through the front and rear, and the inner end surface of the valve body clamping plate (6) is provided with a V-shaped groove that passes through the front and rear.

5. The fixture for machining the end face of a stop valve body according to any one of claims 2 to 4, characterized in that: A clamping adjustment rod (7) is installed inside the adjustment screw hole of the clamping bearing plate (4), a thread is provided on the outer circumference of the clamping adjustment rod (7), a fixing column is provided on the inner end surface of the clamping adjustment rod (7), and a regular hexagonal prism is provided on the outer end surface of the clamping adjustment rod (7).

6. The fixture for machining the end surface of the stop valve body according to claim 5, characterized in that: A movable clamping plate (8) is mounted on the fixed column of the clamping adjustment rod (7) via a bearing, and a fixed cylinder in the left and right directions is arranged in the middle of the outer end surface of the movable clamping plate (8).

7. The fixture for machining the end surface of the stop valve body according to claim 6, characterized in that: The inner end surface of the movable clamping plate (8) is provided with a V-shaped groove which passes through from top to bottom, and the outer end surface of the movable clamping plate (8) is provided with square rods in left and right directions at the front and rear.

Images