CN110549244A - Valve positioning fixture - Google Patents

Abstract

The invention discloses a valve positioning fixture, which comprises a bottom plate and two supporting fixtures. Both sides of the upper surface of the bottom plate are provided with supporting fixtures. The supporting fixtures include a fixing plate and a threaded rod. The bottom of the fixing plate is The end is fixedly connected with one side of the upper surface of the bottom plate. A horizontal through hole is opened on the side of the fixed plate. The inner wall of the through hole is connected with a concave cylinder through a bearing. The concave cylinder and the middle section of the threaded rod pass through the bearing. Rotational connection, one end of the concave cylinder is fixedly connected with one end of the round pipe, the side of the fixed plate far away from the round pipe is equipped with a concave cylinder limit device, and the threaded rod is far away from the concave cylinder limit device The first section is threaded to the inner side of the moving ring. The valve positioning fixture is positioned and clamped from the inside of the valve without hindering the grinding and polishing of both sides. It can simplify the operation process, improve production efficiency, reduce production costs, and improve business efficiency.

Description

A valve positioning fixture

technical field

The invention relates to the technical field of valve processing equipment, in particular to a valve positioning fixture.

Background technique

Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. The valve is a control component in the fluid conveying system, which has functions such as cut-off, regulation, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. When processing the valve, it is usually necessary to process the flange end of the valve Grinding and profiled, while the existing positioning fixture usually clamps on one side, then grinds and profiles the unclamped side, and then clamps in the other direction, and polishes and profiles the other side, so that As a result, the operation process is cumbersome, the production efficiency is low, the production cost is increased, and the business efficiency of the enterprise is reduced.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the existing defects and provide a valve positioning fixture, which can be positioned and clamped from the inside of the valve without hindering the grinding and polishing on both sides, can simplify the operation process, improve production efficiency, and reduce production costs. Improving the operating efficiency of the enterprise can effectively solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a valve positioning fixture, including a bottom plate and two support fixtures, support fixtures are provided on both sides opposite to the upper surface of the bottom plate, and the support fixture includes a fixing plate and a screw thread Rod, the bottom end of the fixed plate is fixedly connected to one side of the upper surface of the bottom plate, a horizontal through hole is opened on the side of the fixed plate, and a concave cylinder is connected to the inner wall of the through hole through bearing rotation. The middle section of the cylinder and the threaded rod is connected by bearing rotation, one end of the concave cylinder is fixedly connected with one end of the round pipe, the side of the fixed plate far away from the round pipe is equipped with a concave cylinder limit device, and the threaded rod A section away from the inner concave cylinder limit device is threadedly connected to the inner side of the moving ring, the outer peripheral side of the moving ring is equiangularly hinged with a connecting plate, and the outer peripheral side of the circular tube is provided with a perforation at a position corresponding to the connecting plate, and the connecting plate One end of the plate passes through the perforation and is hinged with the rectangular plate, and two moving rings supporting the fixture are set opposite.

As a preferred technical solution of the present invention, the concave cylinder limiting device includes a long plate, a positioning plate, a positioning groove and a cylinder, one end of the cylinder is coaxially fixed with the end of the concave cylinder away from the moving ring, There are positioning slots on the outer peripheral side of the cylinder at equal angles, a long plate is fixed on the side of the fixing plate and above the cylinder, a rectangular hole is opened on the upper surface of the long plate, a positioning plate is arranged in the rectangular hole, the bottom of the positioning plate and The uppermost positioning slot snaps into place.

As a preferred technical solution of the present invention, the top of the positioning plate is fixedly connected to the lower surface of the top plate, the top plate is a magnet plate, and the long plate is an iron plate or a magnet plate.

As a preferred technical solution of the present invention, the end of the threaded rod away from the moving ring is fixed with a hand wheel, and the end of the threaded rod close to the moving ring is fixed with a rubber plug.

As a preferred technical solution of the present invention, the threaded rod is also covered with a longitudinal positioning device. The longitudinal positioning device includes a ring, a threaded cylinder with external threads on the outer surface and a sleeve with internal threads on the inner wall. The threaded cylinder Sleeved on the round pipe, one end of the threaded cylinder is fixedly connected with the side of the fixed plate close to the moving ring, the outer surface of the threaded cylinder is threaded with the inner wall of the sleeve, and the end of the sleeve away from the fixed plate is connected with the ring through bearing rotation .

As a preferred technical solution of the present invention, a rubber block is fixed on the upper surface of the rectangular plate.

As a preferred technical solution of the present invention, a clamping device is provided in the middle of the upper surface of the base plate. The clamping device includes a bidirectional screw and two telescopic plates, and a moving groove is provided on the upper surface of the base plate. The bottom ends of the telescopic plates are slidingly connected, and the tops of the two telescopic plates are relatively far away from each other. The bottoms of the two telescopic plates are provided with threaded holes in opposite directions, and the two threaded holes are connected with the two sections of the two-way lead screw.

Compared with prior art, the beneficial effect of the present invention is:

1. The valve positioning fixture of the example of the present invention performs positioning and clamping from the inside of the valve without hindering the grinding and polishing on both sides, which can simplify the operation process, improve production efficiency, reduce production costs, and improve enterprise operating efficiency

2. In the valve positioning fixture of the example of the present invention, when the positioning plate is separated from the positioning groove, the clamping part can be rotated, so that the operation is more convenient and the production efficiency can be effectively improved.

3. In the valve positioning fixture of the example of the present invention, the longitudinal positioning device can position the clamped workpiece in the longitudinal direction, so as to avoid the longitudinal displacement during the processing process and damage the workpiece.

4. In the valve positioning fixture of the example of the present invention, the two telescopic plates can restrict the rotation of the workpiece when the connecting plate clamps the workpiece, making the operation more convenient, and at the same time supporting the vertical direction of the workpiece.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the front view structure of the present invention;

FIG. 3 is an enlarged schematic diagram of the structure at A in FIG. 2 .

In the figure: 1 bottom plate, 2 fixed plate, 3 threaded barrel, 4 sleeve, 5 telescopic plate, 6 two-way screw, 7 ring, 8 threaded rod, 9 round pipe, 10 connecting plate, 11 rubber block, 12 rubber circle Plug, 13 concave cylinder, 14 positioning groove, 15 hand wheel, 16 long plate, 17 top plate, 18 positioning plate, 19 cylinder, 20 rectangular plate, 21 moving ring, 22 moving groove.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1: Please refer to Figures 1-3. The present invention provides a valve positioning fixture, which includes a bottom plate 1 and two supporting fixtures. Supporting fixtures are provided on opposite sides of the upper surface of the bottom plate 1. The supporting fixtures include a fixing plate 2 and Threaded rod 8, the bottom end of fixed plate 2 is fixedly connected with one side of the upper surface of base plate 1, and the side of fixed plate 2 is provided with horizontal through hole, and the inner wall of through hole is connected with concave cylinder 13 through bearing rotation, and concave circle The middle section of the barrel 13 and the threaded rod 8 is rotationally connected by a bearing, and one end of the concave cylinder 13 is fixedly connected with one end of the round pipe 9, and the side of the fixed plate 2 away from the round pipe 9 is equipped with a recessed cylinder limiter, and the threaded rod 8. A section away from the inner concave cylinder limit device is threadedly connected to the inner side of the moving ring 21. The outer peripheral side of the moving ring 21 is hinged with a connecting plate 10 at an equiangular angle. The outer peripheral side of the circular tube 9 is provided with a perforation at the position corresponding to the connecting plate 10. One end of the plate 10 passes through the perforation and is hinged with the rectangular plate 20 , the moving rings 21 of the two supporting fixtures are arranged oppositely, and the upper surface of the rectangular plate 20 is fixed with a rubber block 11 .

Set the two ports of the external valve on the two round pipes 9 respectively, then rotate the hand wheel 15 to drive the threaded rod 8 to rotate, the threaded rod 8 rotates to make the moving ring 21 move on the threaded rod 8, and the connecting plate 10 follows the moving ring 21 The movement of the valve makes its angle continuously increase, and finally the rectangular plate 20 at the upper end of the connecting plate 10 contacts the inner side of the valve through the rubber block 11 and positions it. The valve positioning fixture is positioned and clamped from the inside of the valve without hindering the grinding and polishing of both sides. , can simplify the operation process, improve production efficiency, reduce production costs, and improve business efficiency.

The rubber block 11 can increase the frictional force between the rectangular plate 20 and the inner wall of the valve to avoid movement, and at the same time can make the two fit more closely.

The concave cylinder limiter includes a long plate 16, a positioning plate 18, a positioning groove 14 and a cylinder 19. One end of the cylinder 19 is coaxially fixed with the end of the concave cylinder 13 away from the moving ring 21. The outer circumference of the cylinder 19 Positioning slots 14 are provided at equal angles on the side, and a long plate 16 is fixed on the side of the fixed plate 2 and positioned at the position above the cylinder 19. The upper surface of the long plate 16 is provided with a rectangular hole, and a positioning plate 18 is arranged in the rectangular hole. The bottom end is clamped with the uppermost positioning groove 14, and the upper end of the positioning plate 18 is fixedly connected with the lower surface of the top plate 17. The top plate 17 is a magnet plate, and the long plate 16 is an iron plate or a magnet plate. When the workpiece needs to be rotated, pull up the top plate 17 , so that the top plate 17 drives the positioning plate 18 to break away from the positioning groove 14, then the hand wheel 15 is rotated in the direction of tightening, and the hand wheel 15 drives the threaded rod 8 to rotate. Since the angle of the connecting plate 10 has been enlarged to the limit, the connecting plate 10 will follow The threaded rod 8 rotates, the threaded rod 8 drives the round pipe 9 to rotate, the round pipe 9 drives the concave cylinder 13 to rotate, and the concave cylinder 13 drives the cylinder 19 to rotate, so that the workpiece rotates in the direction of rotation. After the rotation is completed, the top plate 17 is released. The positioning plate 18 is stuck in the positioning groove 14 to limit the rotation of the cylinder 19. When the positioning plate 18 is out of the positioning groove 14, the valve positioning fixture can realize the rotation of the clamping parts, so that the operation is more convenient and the production efficiency can be effectively improved.

The threaded rod 8 is fixed with a hand wheel 15 at one end away from the moving ring 21, and the end of the threaded rod 8 near the moving ring 21 is fixed with a rubber round plug 12. The setting of the hand wheel 15 makes it more convenient and labor-saving to rotate the threaded rod 8. The rubber round plug 12 can Prevent impurities from falling onto the threaded rod 8 so that the moving ring 21 cannot move.

The threaded rod 8 is also covered with a longitudinal positioning device. The longitudinal positioning device includes a ring 7, a threaded cylinder 3 with external threads on the outer surface and a sleeve 4 with internal threads on the inner wall. The threaded cylinder 3 is sleeved on the round pipe 9. , one end of the threaded cylinder 3 is fixedly connected to the side of the fixed plate 2 close to the moving ring 21, the outer surface of the threaded cylinder 3 is threadedly connected to the inner wall of the sleeve 4, and the end of the sleeve 4 away from the fixed plate 2 is connected to the ring 7 through a bearing Rotate the connection, rotate the sleeve 4 to make the ring 7 contact with the valve flange part, thereby restricting the longitudinal movement of the valve. The longitudinal positioning device of the valve positioning fixture can position the clamped workpiece longitudinally to avoid longitudinal displacement during the processing process. As a result, the workpiece is damaged.

When in use: Put the two ports of the external valve on the two round pipes 9 respectively, and the rubber round plug 12 will push the debris inside the valve to the inside of the valve, which can prevent the debris from falling on the threaded rod 8 and cause the moving ring 21 to fail. Move and rotate so that the two rotating handwheels 15 drive the threaded rod 8 to rotate, the threaded rod 8 rotates to make the moving ring 21 move on the threaded rod 8, the connecting plate 10 moves with the moving ring 21 so that its angle becomes larger and finally connected The rectangular plate 20 at the upper end of the plate 10 is in contact with the inner side of the valve through the rubber block 11 and positioned, and then the sleeve 4 is rotated so that the ring 7 is in contact with the flange of the valve, thereby limiting the longitudinal movement of the valve.

Pull up the top plate 17, so that the top plate 17 drives the positioning plate 18 to break away from the positioning groove 14, then rotate the hand wheel 15 to the direction of tightening, and the hand wheel 15 drives the threaded rod 8 to rotate. Since the angle of the connecting plate 10 has been enlarged to the limit, the connection The plate 10 will follow the threaded rod 8 to rotate, the threaded rod 8 drives the round tube 9 to rotate, the round tube 9 drives the concave cylinder 13 to rotate, and the concave cylinder 13 drives the cylinder 19 to rotate, so that the workpiece rotates in the direction of rotation. Open the top plate 17, and the positioning plate 18 is stuck in the positioning groove 14 to rotate the cylinder 19.

The invention performs positioning and clamping from the inside of the valve without hindering the grinding and polishing of both sides, can simplify the operation process, improve the production efficiency, reduce the production cost, and improve the operating efficiency of the enterprise.

When the positioning plate 18 disengages from the positioning slot 14, the clamping member can be rotated, so that the operation is more convenient and the production efficiency can be effectively improved.

The longitudinal positioning device can position the clamped workpiece in the longitudinal direction, so as to avoid the longitudinal displacement during the processing and damage the workpiece.

Embodiment 2: As shown in Figure 1 and Figure 2, this embodiment discloses a valve positioning fixture, the structure of which is roughly the same as that of Embodiment 1, the difference is that the middle position of the upper surface of the bottom plate 1 of this embodiment A clamping device is also provided, and the clamping device includes a bidirectional lead screw 6 and two telescopic plates 5. The upper surface of the base plate 1 is provided with a moving groove 22, and the moving groove 22 is slidably connected to the bottom ends of the two telescopic plates 5. The tops of the plates 5 are relatively far away, and the bottoms of the two telescopic plates 5 are provided with threaded holes in opposite directions.

After the expansion plate 5 is stretched to a suitable length, the two-way lead screw 6 rotates to make the two expansion plates 5 move in the moving groove 22, and finally the inner sides of the two expansion plates 5 are in contact with the valve. The valve positioning fixture two expansion plates 5 can limit the rotation of the workpiece when the connecting plate 10 clamps the workpiece, making the operation more convenient, and can also support the vertical direction of the workpiece.

When the workpiece needs to be rotated, the two-way lead screw 6 is first rotated to disengage the expansion plate 5 from the valve, and then the expansion plate 5 is lowered.

The two telescopic plates 5 can limit the rotation of the workpiece when the connecting plate 10 clamps the workpiece, making the operation more convenient, and can also support the vertical direction of the workpiece.

Two-way lead screw 6: two sections of threads with different directions of rotation are made on a leading screw, i.e. one section of right-handed thread and one section of left-handed thread; the right-handed and left-handed nuts screwed on it are respectively connected with moving parts. When the lead screw rotates, the two moving parts rapidly approach or separate with the nut.

The expansion plate 5 is made up of an outer plate and an inner plate, the inner plate is slidingly connected inside the outer plate, and the outer plate is provided with tightening bolts, the expansion plate 5 is a common structure in the prior art, and is commonly used in workpiece support; when in use, pull The inner plate makes the inner plate contact with the valve, the bolt is rotated to fix the overlapping length of the inner plate and the outer plate, and the expansion plate restricts the rotation of the valve.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A valve positioning fixture, comprising a bottom plate (1) and two supporting fixtures, characterized in that: supporting fixtures are provided on opposite sides of the upper surface of the bottom plate (1), and the supporting fixtures include a fixing plate (2 ) and threaded rod (8), the bottom end of the fixed plate (2) is fixedly connected to one side of the upper surface of the bottom plate (1), and a horizontal through hole is opened on the side of the fixed plate (2), and the inner wall of the through hole A concave cylinder (13) is rotatably connected with a bearing, and the concave cylinder (13) is rotatably connected with the middle section of the threaded rod (8) through a bearing, and one end of the concave cylinder (13) is connected with the round pipe ( One end of 9) is fixedly connected, the side of the fixed plate (2) far away from the round pipe (9) is equipped with a concave cylinder limit device, and the threaded rod (8) is far away from a section of the concave cylinder limit device and The inner side of the moving ring (21) is threaded, the moving ring (21) is located in the round tube (9), and the outer peripheral side of the moving ring (21) is hinged with a connecting plate (10) at an equal angle, and the round tube (9) A perforation is opened on the outer peripheral side corresponding to the position of the connecting plate (10), one end of the connecting plate (10) passes through the perforation and is hinged to the rectangular plate (20), and two moving rings (21) supporting the fixture are arranged oppositely. 2. The valve positioning fixture according to claim 1, characterized in that: the concave cylinder limiting device includes a long plate (16), a positioning plate (18), a positioning groove (14) and a cylinder (19) , one end of the cylinder (19) is coaxially fixed with the end of the concave cylinder (13) away from the moving ring (21), the outer peripheral side of the cylinder (19) is provided with a positioning groove (14) at an equal angle, and the fixed plate (2 ) side and above the cylinder (19) is fixed with a long plate (16), the upper surface of the long plate (16) is provided with a rectangular hole, and a positioning plate (18) is arranged in the rectangular hole, and the bottom of the positioning plate (18) end and the uppermost positioning slot (14). 3. The valve positioning fixture according to claim 2, characterized in that: the upper end of the positioning plate (18) is fixedly connected to the lower surface of the top plate (17), the top plate (17) is a magnet plate, and the long plate (16) is Iron plate or magnet plate. 4. The valve positioning fixture according to claim 1, characterized in that: the end of the threaded rod (8) away from the moving ring (21) is fixed with a hand wheel (15), and the threaded rod (8) is close to the moving ring (21) ) is fixed with a rubber round plug (12). 5. The valve positioning fixture according to claim 1, characterized in that: the threaded rod (8) is also covered with a longitudinal positioning device, the longitudinal positioning device includes a ring (7), and a thread with an external thread on the outer surface The barrel (3) and the inner wall are provided with a sleeve (4) with internal threads, the threaded barrel (3) is sleeved on the round pipe (9), and one end of the threaded barrel (3) is close to the fixed plate (2) and the moving ring (21 ) is fixedly connected to one side, the outer surface of the threaded cylinder (3) is threadedly connected to the inner wall of the sleeve (4), and the end of the sleeve (4) away from the fixed plate (2) is rotationally connected to the ring (7) through a bearing. 6. The valve positioning fixture according to claim 1, characterized in that: a rubber block (11) is fixed on the upper surface of the rectangular plate (20). 7. The valve positioning fixture according to claim 1, characterized in that: a clamping device is provided in the middle of the upper surface of the bottom plate (1), and the clamping device includes a two-way screw (6) and two telescopic plates ( 5), the upper surface of the bottom plate (1) is provided with a moving groove (22), the moving groove (22) is slidingly connected with the bottom ends of the two expansion plates (5), and the top ends of the two expansion plates (5) are relatively far away, and the two The bottom of the expansion plate (5) is provided with threaded holes in opposite directions, and the two threaded holes are all threaded with two sections of the two-way lead screw (6).