Positioning structure for valve machining

Abstract

The utility model relates to the field of positioning structures, in particular to a valve machining positioning structure which comprises a workbench, a first positioning assembly, a second positioning assembly, a third positioning assembly, foot columns and balancing weights. By arranging the first positioning assembly, the second positioning assembly and the third positioning assembly which are arranged in different structures and can be adjusted, flexible adjustment can be conducted according to valves of different sizes and shapes and different machining requirements, various different machining positioning requirements can be met, and the multi-position valve positioning device is more convenient to use, practical and suitable for popularization and application. The inner side of the port of the valve can be positioned through the first positioning assembly, so that the outer side of the valve can be conveniently machined, the two opposite second positioning assemblies can be used for positioning the outer side of the valve in a matched mode, and therefore the port or the inner side of the port of the valve can be conveniently machined; and by arranging the third positioning assembly, a certain end of the valve can be clamped and fixed, and the remaining end of the valve can be conveniently machined.

Description

Technical Field

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

[0002] Valve processing is a process involving multiple links and delicate operations. First, the processing of major components such as valve bodies and valve covers requires the selection of castings or forgings according to valve specifications. Before casting, the chemical composition of the molten steel needs to be analyzed to ensure that the quality meets the standards. After casting, heat treatment is required to refine the lattice and eliminate internal stress. For stainless steel valves, pickling is also required to remove the surface oxide layer. The positioning structure of valve processing is mainly used to ensure the precise position and stability of the valve during the processing. Through this structure, the valve can be firmly supported and precisely positioned, thereby improving the processing accuracy and quality.

[0003] The existing positioning structure of valve processing can usually only be used to fix valves of fixed size and shape. It is not convenient to adjust accordingly according to valves of different sizes and shapes and different processing requirements, resulting in limited positioning effect and low flexibility.

[0004] Therefore, the positioning structure for the above-mentioned existing valve processing can usually only be used to fix valves of fixed size and shape, and is not convenient for corresponding adjustment according to valves of different sizes and shapes and different processing requirements, resulting in limitations in the positioning effect and low flexibility. By setting the first positioning component, the second positioning component and the third positioning component with different structural settings and which can be adjusted, it can be flexibly adjusted according to valves of different sizes and shapes and different processing requirements, and can meet a variety of different processing positioning requirements, which is more convenient and practical. Utility Model Content

[0005] In order to overcome the problem that the existing valve processing positioning structure can usually only be used to fix valves of fixed size and shape, it is not convenient to adjust accordingly according to valves of different sizes and shapes and different processing requirements, resulting in limited positioning effect and low flexibility.

[0006] The technical solution of the present utility model is: a positioning structure for valve processing, comprising a workbench, a first positioning component, a second positioning component, a third positioning component, a foot column and a counterweight block; a first positioning component for limiting and fixing the inner side of the valve port is fixedly installed on the left upper end of the workbench; two groups of second positioning components for cooperating to clamp and fix the outer side of the valve are fixedly installed in a relatively arranged manner on the middle upper end of the workbench; a third positioning component for clamping and fixing the outer side of the valve is fixedly installed on the right upper end of the workbench; foot columns for supporting the workbench are fixedly installed around the four corners of the lower end of the workbench; and the lower ends of the foot columns are fixedly connected to counterweight blocks for increasing stability.

[0007] Preferably, by setting a first positioning component, a second positioning component and a third positioning component with different structural settings and which can be adjusted, it can be flexibly adjusted according to valves of different sizes and shapes and different processing requirements, can meet a variety of different processing positioning requirements, and is more convenient and practical. By setting the first positioning component, the inner side of the valve port can be positioned, thereby facilitating the processing of the outer side of the valve. By setting two groups of second positioning components arranged opposite to each other, it can be used to cooperate in positioning the outer side of the valve, thereby facilitating the processing of the valve port or the inner side of the port. By setting the third positioning component, it can be used to clamp and fix one end of the valve, thereby facilitating the processing of the remaining end of the valve.

[0008] Preferably, the first positioning assembly includes a rotating shaft, a first drive motor, a first connecting block, a second connecting block, an adjusting bolt, a limit block and a first anti-slip pad. The lower end of the rotating shaft is provided with a first drive motor for driving the rotating shaft to rotate. The first drive motor is embedded and installed in the upper end of the workbench. The upper end of the rotating shaft is fixedly connected with the first connecting block. A second connecting block is provided on one side of the first connecting block. The first connecting block and the second connecting block are adjusted and connected by an adjusting bolt. By setting the first drive motor, the rotating shaft can be driven to drive the valve to rotate synchronously to cooperate with the processing.

[0009] Preferably, the distance between the first connecting block and the second connecting block is adjusted by turning the adjusting bolt, and the upper ends of the first connecting block and the second connecting block are fixedly connected with a limit block for extending into the inner side of the valve port, and the outer side of the limit block is fitted with a first anti-slip pad for increasing friction. By setting the first anti-slip pad for anti-slip, the positioning effect of the limit block can be better.

[0010] Preferably, the second positioning assembly includes a first electric push rod, a first clamping plate, a first telescopic cylinder, a second anti-slip pad, a support column, a first slider, a second electric push rod and a second telescopic cylinder. The first electric push rods are arranged in two groups opposite to each other, and the ends of the two groups of first electric push rods that are close to each other are fixedly connected with a first clamping plate for clamping and fixing the outside of the valve, and the ends of the two groups of first electric push rods that are away from each other are provided with a first telescopic cylinder for controlling the movement of the first electric push rod, and the ends of the two groups of first clamping plates that are close to each other are fitted with a second anti-slip pad for increasing friction. By setting the first telescopic cylinder, the first electric push rod can be controlled to move to adjust the distance between the two groups of first clamping plates, so that the first clamping plates can be used to clamp and fix valves of different thicknesses.

[0011] Preferably, the lower ends of the first telescopic cylinder and the first electric push rod are fixedly connected to a support column for supporting the first telescopic cylinder and the first electric push rod, the lower ends of the support columns are fixedly connected to a first slider for sliding, and the middle parts of the first sliders at one end away from each other of the two groups of second positioning assemblies are fixedly connected to a second electric push rod for controlling the sliding of the first slider, and the end of the second electric push rod away from the first slider is provided with a second telescopic cylinder for controlling the movement of the second electric push rod. By setting the second telescopic cylinder, the second electric push rod can be controlled to drive the first slider to move to adjust the spacing between the two groups of second positioning assemblies, so that the two groups of second positioning assemblies can be used to fix valves of different lengths.

[0012] Preferably, the third positioning assembly includes a support frame, a second clamping plate, a third anti-slip pad, a second slider, a bidirectional threaded rod and a second drive motor. The support frames are arranged in two groups opposite to each other, and the ends of the two groups of support frames close to each other are fixedly connected with a second clamping plate for clamping and fixing the outside of the valve. The inner side of the second clamping plate is fitted with a third anti-slip pad for increasing friction. By providing the third anti-slip pad, the friction can be increased to prevent slipping, so that the positioning effect of the second clamping plate is better.

[0013] Preferably, the lower end of the support frame is fixedly connected to a second sliding block for sliding, and the two groups of second sliding blocks are relatively arranged and sleeved on the outside of the two-way threaded rod. The second drive motor drives the two-way threaded rod to rotate and drives the two groups of second sliding blocks to slide relative to each other along its surface. By setting the second drive motor to drive the two-way threaded rod to rotate, the two-way threaded rod can drive the two groups of second sliding blocks to slide relative to each other along its surface during the rotation process to adjust the spacing between the two groups of second clamping plates, so that the second clamping plates can be used to clamp and fix valves of different thicknesses.

[0014] Beneficial effects of the utility model:

[0015] 1. By providing a first positioning assembly, a second positioning assembly and a third positioning assembly with different structures and adjustable functions, it is possible to flexibly adjust according to valves of different sizes and shapes and different processing requirements, and to meet a variety of different processing positioning requirements, which is more convenient and practical. By providing the first positioning assembly, the inner side of the valve port can be positioned, thereby facilitating the processing of the outer side of the valve. By providing two sets of limit blocks, they can be extended into the inner side of the valve port to cooperate in positioning the valve. By providing a first connecting block and a second connecting block fixedly connected to the limit block and adjustable by an adjusting bolt, the spacing between the two sets of limit blocks can be adjusted by turning the adjusting bolt, so that the limit blocks can be used to position the inner side of valve ports of different apertures. By providing a first driving motor, the rotating shaft can be driven to rotate, so that the rotating shaft can drive the valve to rotate synchronously to adjust its position, so that it can meet different processing requirements.

[0016] 2. By setting two sets of second positioning assemblies arranged opposite to each other, the outer side of the valve can be positioned in coordination, thereby facilitating the processing of the port or the inner side of the valve. The first clamping plates arranged opposite to each other can be used to clamp and fix the left and right ends of the valve. By setting a first telescopic cylinder, the first electric push rod can be controlled to move to adjust the spacing between the two sets of first clamping plates, so that the first clamping plates can be used to clamp and fix valves of different thicknesses. By setting a second telescopic cylinder, the second electric push rod can be controlled to drive the first slider to move to adjust the spacing between the two sets of second positioning assemblies, so that the two sets of second positioning assemblies can be used to fix valves of different lengths.

[0017] 3. By setting up a third positioning component, one end of the valve can be clamped and fixed to facilitate the processing of the remaining end of the valve. By setting up a second clamping plate that is relatively arranged, the outer side of one end of the valve can be clamped and fixed. By setting up a second drive motor, the bidirectional threaded rod can be driven to rotate, so that the bidirectional threaded rod can drive the two sets of second sliders to slide relative to each other along its surface during the rotation process to adjust the spacing between the two sets of second clamping plates, so that the second clamping plates can be used to clamp and fix valves of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the overall three-dimensional structure of the positioning structure of the valve processing of the present utility model;

[0019] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the first positioning component of the positioning structure for valve processing of the present utility model;

[0020] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the second positioning component of the positioning structure of the valve processing of the utility model;

[0021] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the third positioning component of the positioning structure for valve processing of the present utility model.

[0022] Explanation of the accompanying drawings: 1. workbench; 5. foot column; 6. counterweight; 201. rotating shaft; 202. first drive motor; 203. first connecting block; 204. second connecting block; 205. adjusting bolt; 206. limit block; 207. first anti-slip pad; 301. first electric push rod; 302. first splint; 303. first telescopic cylinder; 304. second anti-slip pad; 305. supporting column; 306. first slider; 307. second electric push rod; 308. second telescopic cylinder; 401. supporting frame; 402. second splint; 403. third anti-slip pad; 404. second slider; 405. bidirectional threaded rod; 406. second drive motor. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1 The utility model provides an embodiment: a positioning structure for valve processing, including a workbench 1, a first positioning component, a second positioning component, a third positioning component, a foot column 5 and a counterweight 6. The left upper end of the workbench 1 is fixedly installed with a first positioning component for limiting and fixing the inner side of the valve port, and two groups of second positioning components for clamping and fixing the outer side of the valve are fixedly installed in the middle of the upper end of the workbench 1 in a relatively arranged manner. The third positioning component for clamping and fixing the outer side of the valve is fixedly installed on the right upper end of the workbench 1. The four corners of the lower end of the workbench 1 are fixedly installed with foot columns 5 for supporting the workbench 1, and the lower ends of the foot columns 5 are fixedly connected with counterweight blocks 6 for increasing stability.

[0025] See also Figure 2In this embodiment, the first positioning assembly includes a rotating shaft 201, a first driving motor 202, a first connecting block 203, a second connecting block 204, an adjusting bolt 205, a limit block 206 and a first anti-slip pad 207. The lower end of the rotating shaft 201 is provided with a first driving motor 202 for driving the rotating shaft 201 to rotate. The first driving motor 202 is embedded in the upper end of the workbench 1. The upper end of the rotating shaft 201 is fixedly connected with the first connecting block 203. A second connecting block 204 is provided on one side of the first connecting block 203. The first connecting block 203 and the second connecting block 204 are adjusted. The joint bolt 205 adjusts the connection. By setting the first drive motor 202, the rotating shaft 201 can be driven to drive the valve to rotate synchronously to make it cooperate with the processing. The distance between the first connecting block 203 and the second connecting block 204 is adjusted by turning the adjusting bolt 205. The upper ends of the first connecting block 203 and the second connecting block 204 are fixedly connected with a limit block 206 for extending into the inner side of the valve port. The outer side of the limit block 206 is fitted with a first anti-slip pad 207 for increasing friction. By setting the first anti-slip pad 207 for anti-slip, the positioning effect of the limit block 206 can be better.

[0026] See also Figure 3In this embodiment, the second positioning assembly includes a first electric push rod 301, a first clamping plate 302, a first telescopic cylinder 303, a second anti-slip pad 304, a support column 305, a first slider 306, a second electric push rod 307 and a second telescopic cylinder 308. The first electric push rod 301 is provided in two groups opposite to each other. The ends of the two groups of first electric push rods 301 that are close to each other are fixedly connected to the first clamping plate 302 for clamping and fixing the outer side of the valve. The ends of the two groups of first electric push rods 301 that are away from each other are provided with a first telescopic cylinder 303 for controlling the movement of the first electric push rod 301. The ends of the two groups of first clamping plates 302 that are close to each other are both fitted with a second anti-slip pad 304 for increasing friction. By setting the first telescopic cylinder 303, the first electric push rod 301 can be controlled to move to adjust the distance between the two groups of first clamping plates 302, so that the first clamping plates 302 It can be used to clamp and fix valves of different thicknesses. The lower ends of the first telescopic cylinder 303 and the first electric push rod 301 are fixedly connected to a support column 305 for supporting the first telescopic cylinder 303 and the first electric push rod 301. The lower end of the support column 305 is fixedly connected to a first sliding block 306 for sliding. The middle parts of the first sliding blocks 306 at one end of the two groups of second positioning assemblies away from each other are fixedly connected to a second electric push rod 307 for controlling the sliding of the first sliding block 306. The end of the second electric push rod 307 away from the first sliding block 306 is provided with a second telescopic cylinder 308 for controlling the movement of the second electric push rod 307. By setting the second telescopic cylinder 308, the second electric push rod 307 can be controlled to drive the first sliding block 306 to move to adjust the spacing between the two groups of second positioning assemblies, so that the two groups of second positioning assemblies can be used to fix valves of different lengths.

[0027] See also Figure 4In this embodiment, the third positioning assembly includes a support frame 401, a second clamping plate 402, a third anti-slip pad 403, a second slider 404, a bidirectional threaded rod 405 and a second drive motor 406. The support frame 401 is provided with two groups opposite to each other. The ends of the two groups of support frames 401 close to each other are fixedly connected with a second clamping plate 402 for clamping and fixing the outer side of the valve. The inner side of the second clamping plate 402 is fitted with a third anti-slip pad 403 for increasing friction. By providing the third anti-slip pad 403 to increase friction, it can play an anti-slip role, so that the positioning effect of the second clamping plate 402 is better, and the lower end of the support frame 401 A second sliding block 404 for sliding is fixedly connected, and the two groups of second sliding blocks 404 are relatively arranged and sleeved on the outside of the bidirectional threaded rod 405. The second driving motor 406 drives the bidirectional threaded rod 405 to rotate, driving the two groups of second sliding blocks 404 to slide relative to each other along its surface. By setting the second driving motor 406 to drive the bidirectional threaded rod 405 to rotate, the bidirectional threaded rod 405 can drive the two groups of second sliding blocks 404 to slide relative to each other along its surface during the rotation process to adjust the spacing between the two groups of second clamping plates 402, so that the second clamping plates 402 can be used to clamp and fix valves of different thicknesses.

[0028] When working, first move the workbench 1 to the corresponding location and place it in a stable position;

[0029] Then select the appropriate positioning method according to the size and shape of the valve to be processed and the corresponding processing requirements;

[0030] When the outer side of the valve needs to be processed, the inner side of the valve is positioned by the first positioning assembly, the two sets of limit blocks 206 are extended into the inner side of the valve port, and the adjusting bolts 205 are screwed to move the two sets of limit blocks 206 away from each other until the two sets of limit blocks 206 fix the inner side of the valve so that the first anti-slip pad 207 on the outer side of the limit blocks 206 is tightly fitted with the inner side of the valve;

[0031] During the processing, the first drive motor 202 drives the rotating shaft 201 to drive the valve to rotate synchronously, so as to fine-tune the processing position of the valve to cooperate with the processing;

[0032] When the middle port of the three-way valve needs to be processed, the left and right ends of the valve are clamped and fixed by the second positioning assembly. According to the size of the valve, the second electric push rod 307 is controlled by the second telescopic cylinder 308 to adjust the distance between the two sets of second positioning assemblies to a suitable size;

[0033] Then, the left and right ends of the valve are respectively placed between the two sets of first clamping plates 302. The first telescopic cylinder 303 controls the movement of the first electric push rod 301, so that the two sets of first clamping plates 302 approach each other until the two sets of first clamping plates 302 clamp the valve and fix it, so that the second anti-slip pads 304 on the inside are tightly attached to the outside of the valve.

[0034] When it is necessary to process two ports or the outside of the valve, or when it is necessary to process a double-end valve, the valve is clamped and fixed by the third positioning component, and one end of the valve is placed between the two sets of second clamping plates 402. The second drive motor 406 drives the bidirectional threaded rod 405 to rotate, so that the two sets of second sliders 404 slide relative to each other along the surface of the bidirectional threaded rod 405, so that the second clamping plate 402 clamps the outside of the valve, so that the third anti-slip pad 403 on the inside of the second clamping plate 402 fits tightly against the outside of the valve.

[0035] Through the above steps, by setting the first positioning component, the second positioning component and the third positioning component with different structural settings and which can be adjusted, it is possible to flexibly adjust according to valves of different sizes and shapes and different processing requirements, and can meet a variety of different processing positioning requirements, which is more convenient and practical. By setting the first positioning component, the inner side of the valve port can be positioned, thereby facilitating the processing of the outer side of the valve. By setting two groups of second positioning components arranged opposite to each other, it can be used to cooperate in positioning the outer side of the valve, thereby facilitating the processing of the valve port or the inner side of the port. By setting the third positioning component, it can be used to clamp and fix one end of the valve to facilitate the processing of the remaining end of the valve, so as to solve the problem that the existing valve processing positioning structure can usually only be used to fix valves of fixed size and shape, and is not convenient for corresponding adjustment according to valves of different sizes and shapes and different processing requirements, resulting in limited positioning effect and low flexibility.

Claims

1. A positioning structure for valve processing, comprising a workbench (1); characterized in that: The invention also includes a first positioning component, a second positioning component, a third positioning component, a foot column (5) and a counterweight (6). The first positioning component for limiting and fixing the inner side of the valve port is fixedly installed on the left upper end of the workbench (1). Two groups of second positioning components for cooperating to clamp and fix the outer side of the valve are fixedly installed in a relative arrangement on the middle upper end of the workbench (1). The third positioning component for clamping and fixing the outer side of the valve is fixedly installed on the right upper end of the workbench (1). The four corners of the lower end of the workbench (1) are fixedly installed with foot columns (5) for supporting the workbench (1). The lower ends of the foot columns (5) are fixedly connected with counterweights (6) for increasing stability.

2. A valve processing positioning structure according to claim 1, characterized in that: The first positioning assembly comprises a rotating shaft (201), a first driving motor (202), a first connecting block (203), a second connecting block (204), an adjusting bolt (205), a limiting block (206) and a first anti-slip pad (207); the lower end of the rotating shaft (201) is provided with a first driving motor (202) for driving the rotating shaft (201) to rotate; the first driving motor (202) is embedded and installed on the upper end of the workbench (1); the upper end of the rotating shaft (201) is fixedly connected with the first connecting block (203); a second connecting block (204) is provided on one side of the first connecting block (203); the first connecting block (203) and the second connecting block (204) are adjusted and connected by an adjusting bolt (205).

3. A valve processing positioning structure according to claim 2, characterized in that: The spacing between the first connecting block (203) and the second connecting block (204) is adjusted by screwing the adjusting bolt (205). The upper ends of the first connecting block (203) and the second connecting block (204) are fixedly connected with a limit block (206) for extending into the inner side of the valve port. The outer side of the limit block (206) is fitted with a first anti-slip pad (207) for increasing friction.

4. A positioning structure for valve processing according to claim 1, characterized in that: The second positioning assembly comprises a first electric push rod (301), a first clamping plate (302), a first telescopic cylinder (303), a second anti-slip pad (304), a support column (305), a first slider (306), a second electric push rod (307) and a second telescopic cylinder (308). The first electric push rod (301) is provided in two groups opposite to each other. The ends of the two groups of first electric push rods (301) that are close to each other are fixedly connected to the first clamping plate (302) for clamping and fixing the outer side of the valve. The ends of the two groups of first electric push rods (301) that are away from each other are provided with the first telescopic cylinder (303) for controlling the movement of the first electric push rod (301). The ends of the two groups of first clamping plates (302) that are close to each other are both fitted with the second anti-slip pad (304) for increasing friction.

5. A valve processing positioning structure according to claim 4, characterized in that: The lower ends of the first telescopic cylinder (303) and the first electric push rod (301) are both fixedly connected to a support column (305) for supporting the first telescopic cylinder (303) and the first electric push rod (301); the lower ends of the support column (305) are fixedly connected to a first sliding block (306) for sliding; the middle parts of the first sliding blocks (306) at one end of the two sets of second positioning assemblies are both fixedly connected to a second electric push rod (307) for controlling the sliding of the first sliding block (306); and the end of the second electric push rod (307) away from the first sliding block (306) is provided with a second telescopic cylinder (308) for controlling the movement of the second electric push rod (307).

6. A positioning structure for valve processing according to claim 1, characterized in that: The third positioning assembly includes a support frame (401), a second clamping plate (402), a third anti-slip pad (403), a second slider (404), a bidirectional threaded rod (405) and a second drive motor (406). The support frames (401) are arranged in two groups opposite to each other. The ends of the two groups of support frames (401) close to each other are fixedly connected with a second clamping plate (402) for clamping and fixing the outer side of the valve. The inner side of the second clamping plate (402) is fitted with a third anti-slip pad (403) for increasing friction.

7. A valve machining positioning structure according to claim 6, characterized in that: The lower end of the support frame (401) is fixedly connected to a second sliding block (404) for sliding. The two sets of second sliding blocks (404) are arranged opposite to each other and sleeved on the outer side of the bidirectional threaded rod (405). The second driving motor (406) drives the bidirectional threaded rod (405) to rotate and drive the two sets of second sliding blocks (404) to slide relatively along its surface.

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