Positioning clamp for machining stop valve

Abstract

The utility model discloses a positioning fixture for processing a stop valve, which comprises a workbench, the top of the workbench is provided with an annular table through a sliding mechanism, the surface of the annular table is fixedly provided with a rack, one side of the workbench is fixedly provided with an L-shaped plate, the inner wall of the L-shaped plate is provided with a gear through a first rotating mechanism, and the inner wall of the L-shaped plate is provided with a second rotating mechanism. The surface of the rack is engaged with the surface of the gear, and a sliding rail is fixedly mounted at the top of the annular table. A first motor drives a gear to rotate, the gear drives a rack to rotate, the rack drives an annular table to rotate, the annular table drives a sliding rail to rotate, and the sliding rail drives a second rotating mechanism and a clamping mechanism to rotate, so that the angle of the clamping mechanism can be adjusted, and different positions of the surface of the stop valve can be conveniently clamped; and the stop valve can be conveniently clamped according to specific requirements, the surface of the stop valve can be conveniently machined, the angle of the stop valve does not need to be manually adjusted, and the working speed is increased.

Description

Technical Field

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

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem should be larger, otherwise the valve stem will bend. When producing and processing the stop valve, it is usually necessary to use a positioning fixture to clamp the stop valve.

[0003] In the process of using the positioning fixture, the stop valve is usually clamped by moving two sets of clamping plates toward each other. However, after the stop valve is clamped, the stop valve cannot usually be flipped over, which means that when the bottom of the stop valve needs to be processed, the stop valve needs to be manually flipped over before the bottom of the stop valve can be processed. The angle of the fixture cannot usually be adjusted according to processing requirements. This means that when processing different positions on the surface of the stop valve, the position of the stop valve needs to be manually adjusted and then fixed with a fixture, which is cumbersome to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a positioning fixture for stop valve processing, which solves the problems in the above-mentioned background technology.

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

[0006] A positioning fixture for stop valve processing comprises a workbench, a ring-shaped table is installed on the top of the workbench through a sliding mechanism, a rack is fixedly installed on the surface of the ring-shaped table, an L-shaped plate is fixedly installed on one side of the workbench, a gear is installed on the inner wall of the L-shaped plate through a first rotating mechanism, the surface of the rack and the surface of the gear are meshed, a slide rail is fixedly installed on the top of the ring-shaped table, a lifting block is installed on the top of the slide rail through a lifting mechanism, a mounting plate is installed on one side of the lifting block through a second rotating mechanism, and a clamping mechanism is provided on one side of the mounting plate.

[0007] Preferably, the sliding mechanism comprises an annular groove opened on the top of the workbench, an annular block is slidably mounted on the inner wall of the annular groove, and the top of the annular block and the bottom of the annular table are fixedly mounted.

[0008] Preferably, the first rotating mechanism comprises a first motor fixedly mounted on the inner wall of the L-shaped plate, a first rotating rod fixedly mounted on the output end of the first motor, and a surface of the first rotating rod and an inner wall of the gear are fixedly mounted.

[0009] Preferably, the lifting mechanism includes a second motor fixedly mounted on the top of the slide rail, a screw rod is fixedly mounted on the output end of the second motor, the surface thread of the lifting block is sleeved on the surface of the screw rod, and the slide rails are in two groups and are symmetrically arranged.

[0010] Preferably, the second rotating mechanism comprises a third motor fixedly mounted on one side of the lifting block, a second rotating rod fixedly mounted on an output end of the third motor, and one end of the second rotating rod is fixedly mounted on one side of the mounting plate.

[0011] Preferably, the clamping mechanism comprises an electric push rod fixedly mounted on one side of the mounting plate, a clamping plate is fixedly mounted on the output end of the electric push rod, and the number of the electric push rod and the clamping plate is two groups and they are symmetrically arranged.

[0012] Preferably, a placing table is fixedly installed on the top of the workbench, and a supporting column is fixedly installed on the bottom of the workbench.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The first motor drives the gear to rotate, the gear drives the rack to rotate, the rack drives the annular table to rotate, the annular table drives the slide rail to rotate, and the slide rail drives the second rotating mechanism and the clamping mechanism to rotate, so that the angle of the clamping mechanism can be adjusted, which is convenient for clamping different positions on the surface of the stop valve, convenient for clamping the stop valve according to specific needs, and convenient for processing the surface of the stop valve, so that there is no need to manually adjust the angle of the stop valve, thereby improving the working speed.

[0015] 2. Two sets of electric push rods are used to drive the clamping plates to move toward each other, so that the two sets of clamping plates clamp the stop valve. After clamping, the top of the stop valve can be processed. The second motor drives the clamping plates to rise, and the clamping plates drive the stop valve to a height where it can be flipped. The third motor drives the clamping plates to rotate, and the clamping plates drive the stop valve to rotate, so that the stop valve can be flipped and the bottom of the stop valve can be processed, thereby achieving the purpose of facilitating the adjustment of the angle of the clamping mechanism and facilitating the flipping of the stop valve. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the positive equalization diagram of the utility model;

[0017] Figure 2It is a schematic diagram of the structure of the side sectional view of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a partial diagram of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the enlarged view of point A of the utility model.

[0020] In the figure: 1. workbench; 2. annular groove; 3. annular block; 4. annular table; 5. rack; 6. L-shaped plate; 7. first motor; 8. first rotating rod; 9. gear; 10. slide rail; 11. second motor; 12. screw rod; 13. lifting block; 14. third motor; 15. second rotating rod; 16. mounting plate; 17. electric push rod; 18. clamping plate; 19. placement table; 20. support column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Refer to Figure 1-4 The utility model provides a technical solution, a positioning fixture for stop valve processing, comprising a workbench 1, a placing table 19 is fixedly installed on the top of the workbench 1, a supporting column 20 is fixedly installed on the bottom of the workbench 1, an annular table 4 is installed on the top of the workbench 1 through a sliding mechanism, the sliding mechanism comprises an annular groove 2 opened on the top of the workbench 1, an annular block 3 is slidably installed on the inner wall of the annular groove 2, the top of the annular block 3 and the bottom of the annular table 4 are fixedly installed, which is convenient for the annular table 4 to be rotated, a rack 5 is fixedly installed on the surface of the annular table 4, an L-shaped plate 6 is fixedly installed on one side of the workbench 1, a gear 9 is installed on the inner wall of the L-shaped plate 6 through a first rotating mechanism, the first rotating mechanism comprises a first motor 7 fixedly installed on the inner wall of the L-shaped plate 6, a first rotating rod 8 is fixedly installed on the output end of the first motor 7, the surface of the first rotating rod 8 and the inner wall of the gear 9 are fixedly installed, which is convenient for driving the gear 9 to rotate, and the surface of the rack 5 is meshed with the surface of the gear 9.

[0023] Specifically, a slide rail 10 is fixedly installed on the top of the annular table 4, and a lifting block 13 is installed on the top of the slide rail 10 through a lifting mechanism. The lifting mechanism includes a second motor 11 fixedly installed on the top of the slide rail 10, and a screw rod 12 is fixedly installed on the output end of the second motor 11. The surface thread of the lifting block 13 is sleeved on the surface of the screw rod 12, which is convenient for driving the lifting block 13 to lift and lower. The number of slide rails 10 is two groups and they are symmetrically arranged. A mounting plate 16 is installed on one side of the lifting block 13 through a second rotating mechanism. The second rotating mechanism includes a third motor 14 fixedly installed on one side of the lifting block 13, and a second rotating rod 15 is fixedly installed on the output end of the third motor 14. One end of the second rotating rod 15 and one side of the mounting plate 16 are fixedly installed, which is convenient for driving the mounting plate 16 to rotate.

[0024] Specifically, a clamping mechanism is provided on one side of the mounting plate 16, and the clamping mechanism includes an electric push rod 17 fixedly installed on one side of the mounting plate 16, and a clamping plate 18 is fixedly installed on the output end of the electric push rod 17. The number of the electric push rod 17 and the clamping plate 18 is two groups and they are symmetrically arranged. The first motor 7 drives the gear 9 to rotate, the gear 9 drives the rack 5 to rotate, the rack 5 drives the annular table 4 to rotate, the annular table 4 drives the slide rail 10 to rotate, and the slide rail 10 drives the second rotating mechanism and the clamping mechanism to rotate, so that the angle of the clamping mechanism can be adjusted, which is convenient for clamping different positions of the surface of the stop valve, and convenient for clamping the stop valve according to specific needs, and convenient for adjusting the surface of the stop valve. The processing is performed so that there is no need to manually adjust the angle of the stop valve, which improves the working speed. The two groups of electric push rods 17 drive the clamping plates 18 to move toward each other, so that the two groups of clamping plates 18 clamp the stop valve. After clamping, the top of the stop valve can be processed, and the clamping plates 18 are driven to rise by the second motor 11, and the clamping plates 18 drive the stop valve to a height where it can be flipped. The clamping plates 18 are driven to rotate by the third motor 14, and the clamping plates 18 drive the stop valve to rotate, so that the stop valve can be flipped, and the bottom of the stop valve can be processed, so that the angle of the clamping mechanism can be adjusted easily and the stop valve can be flipped. The structure is simple and easy to use.

[0025] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0026] When in use: When using the positioning fixture for processing the stop valve, by placing the stop valve on the top of the placement table 19, the first motor 7 drives the first rotating rod 8 to rotate, the first rotating rod 8 drives the gear 9 to rotate, the gear 9 drives the rack 5 to rotate, the rack 5 drives the annular table 4 to rotate, the annular table 4 drives the slide rail 10 to rotate, the slide rail 10 drives the second rotating mechanism and the clamping mechanism to rotate, and the angle of the clamping mechanism can be adjusted, which is convenient for clamping different positions on the surface of the stop valve, clamping the stop valve according to specific needs, and processing the surface of the stop valve, so that there is no need to manually adjust the angle of the stop valve, which improves the working speed, and drives the clamping plates 18 to move toward each other through two groups of electric push rods 17, so that the two groups of clamping plates 18 clamp the stop valve. After clamping, the stop valve can be The top of the stop valve is processed, and the second motor 11 drives the screw rod 12 to rotate, and the screw rod 12 drives the lifting block 13 to rise, and the lifting block 13 drives the clamping plate 18 to rise, and the clamping plate 18 drives the stop valve to reach a height where it can be flipped, and the second rotating rod 15 is driven to rotate by the third motor 14, and the second rotating rod 15 drives the mounting plate 16 to rotate, and the mounting plate 16 drives the clamping plate 18 to rotate, and the clamping plate 18 drives the stop valve to rotate, so that the stop valve can be flipped, and the bottom of the stop valve can be processed, which achieves the purpose of facilitating the adjustment of the angle of the clamping mechanism and facilitating the flipping of the stop valve. The structure is simple and easy to use. After the processing is completed, the stop valve is driven by the second motor 11 to descend to the top of the placement table 19, and the clamping plate 18 is driven by two sets of electric push rods 17 to loosen the stop valve, and the stop valve can be taken away.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for stop valve processing, comprising a workbench (1), characterized in that: A ring-shaped table (4) is installed on the top of the workbench (1) through a sliding mechanism, a rack (5) is fixedly installed on the surface of the ring-shaped table (4), an L-shaped plate (6) is fixedly installed on one side of the workbench (1), a gear (9) is installed on the inner wall of the L-shaped plate (6) through a first rotating mechanism, the surface of the rack (5) and the surface of the gear (9) are meshed, a slide rail (10) is fixedly installed on the top of the ring-shaped table (4), a lifting block (13) is installed on the top of the slide rail (10) through a lifting mechanism, a mounting plate (16) is installed on one side of the lifting block (13) through a second rotating mechanism, and a clamping mechanism is provided on one side of the mounting plate (16).

2. A positioning fixture for stop valve processing according to claim 1, characterized in that: The sliding mechanism comprises an annular groove (2) formed on the top of a workbench (1), an annular block (3) being slidably mounted on the inner wall of the annular groove (2), and the top of the annular block (3) and the bottom of the annular table (4) being fixedly mounted.

3. A positioning fixture for stop valve processing according to claim 1, characterized in that: The first rotating mechanism comprises a first motor (7) fixedly mounted on the inner wall of the L-shaped plate (6); a first rotating rod (8) is fixedly mounted on the output end of the first motor (7); and a surface of the first rotating rod (8) and an inner wall of a gear (9) are fixedly mounted.

4. A positioning fixture for stop valve processing according to claim 1, characterized in that: The lifting mechanism comprises a second motor (11) fixedly mounted on the top of the slide rail (10); a screw rod (12) is fixedly mounted on the output end of the second motor (11); a surface of the lifting block (13) is threadedly sleeved on the surface of the screw rod (12); and the slide rails (10) are provided in two groups and are symmetrically arranged.

5. A positioning fixture for stop valve processing according to claim 1, characterized in that: The second rotating mechanism comprises a third motor (14) fixedly mounted on one side of the lifting block (13); a second rotating rod (15) is fixedly mounted on the output end of the third motor (14); one end of the second rotating rod (15) is fixedly mounted on one side of the mounting plate (16).

6. A positioning fixture for stop valve processing according to claim 1, characterized in that: The clamping mechanism comprises an electric push rod (17) fixedly mounted on one side of a mounting plate (16); a clamping plate (18) is fixedly mounted on the output end of the electric push rod (17); and the electric push rod (17) and the clamping plate (18) are provided in two groups and are symmetrically arranged.

7. A positioning fixture for stop valve processing according to claim 1, characterized in that: A placing table (19) is fixedly mounted on the top of the workbench (1), and a supporting column (20) is fixedly mounted on the bottom of the workbench (1).

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