CN221088133U - Stop valve processing positioning fixture - Google Patents

Abstract

The utility model relates to the technical field of stop valve machining, in particular to a stop valve machining positioning clamp. The device comprises a mounting plate, wherein a driving device is arranged on the mounting plate, and a first clamping assembly and a second clamping assembly are arranged on the output end of the driving device; the first clamping assembly and the second clamping assembly are mutually matched to form a diamond clamping structure. The utility model sets the single driving source for driving, thereby reducing the cost; clamping and positioning are matched through a simple connecting rod mechanism, the structure is simple, the operation is convenient, and the production efficiency is high.

Description

Stop valve processing positioning fixture

Technical Field

The utility model relates to the technical field of stop valve machining, in particular to a stop valve machining positioning clamp.

Background

The main function of the clamp is to ensure that the workpiece maintains the correct position and posture during the machining process, so as to realize the machining process with high precision and high efficiency. The shut-off valve is machined to the same extent as the clamp is required to clamp and position it.

The utility model with the bulletin number of CN215093188U discloses a stop valve machining positioning fixture which comprises a base, wherein a placing seat for placing a stop valve is arranged at the top of the base, and clamping components for clamping and fixing flange parts of an input end and an output end of the stop valve are arranged at two sides of the placing seat; the clamping assembly comprises a movable seat and a fixed seat connected to the top of the movable seat, one side, close to the placement seat, of the fixed seat is connected with a positioning block through a first electric telescopic rod, two sides of the positioning block are hinged with movable rods, and one end, far away from the positioning block, of each movable rod is connected with an arc-shaped extrusion plate.

The utility model discloses a positioning tool for processing a stop valve, which comprises a mounting plate, a bracket, rotating blocks and a shell, wherein a protection box is fixedly arranged above the mounting plate through bolts, a motor is arranged inside the protection box, the bracket is arranged at the rear part of the protection box, the rotating blocks are rotatably arranged between the brackets, the rotating blocks are welded below the shell, and a first double-headed motor is fixedly arranged inside the shell through bolts. According to the utility model, the V-shaped block is used for initially positioning the stop valve body, the first clamping plate clamps the front and back of the stop valve body, so that the valve body mounting seat of the stop valve is kept horizontal with the first clamping plate, and the second clamping plate clamps the two ends of the stop valve body, thus the stop valve body can be well fixed.

Among the above-mentioned technical scheme, the processing positioning fixture of stop valve, the structure is complicated, and the practicality is poor, has used a plurality of driving sources and drive mechanism, and is with high costs, and the operation is complicated, and machining efficiency is not high.

Disclosure of utility model

In order to solve the problems in the background technology, the utility model provides a stop valve machining positioning clamp.

In order to achieve the above object, the present utility model provides the following technical solutions:

The stop valve machining positioning clamp comprises a mounting plate, wherein a driving device is arranged on the mounting plate, and a first clamping assembly and a second clamping assembly are arranged at the output end of the driving device; the first clamping assembly and the second clamping assembly are mutually matched to form a diamond clamping structure.

Preferably, the mounting plate comprises a first mounting plate, the first clamping assembly comprises a first clamping jaw, and the second clamping assembly comprises a second clamping jaw; the upper surface of the first mounting plate is provided with a plurality of first sliding grooves which are parallel to each other, and the first sliding grooves are horizontally arranged; the first clamping jaw is in sliding fit with the first sliding chute and is fixedly connected to the second connecting plate; the second clamping jaw is positioned at two sides of the first chute and fixedly arranged on the upper surface of the first mounting plate, and is fixedly connected to the first connecting plate; the driving device is used for driving the first clamping jaw to slide back and forth in the first sliding groove so as to be close to/far away from the second clamping jaw, and the first clamping jaw and the second clamping jaw are mutually matched to form a diamond clamping structure.

Preferably, the driving device comprises a cylinder, the cylinder is horizontally arranged, the cylinder is fixedly arranged on the first mounting plate, and an output shaft of the cylinder is fixedly connected with the second connecting plate.

Preferably, the mounting plate comprises a second mounting plate, the first clamping assembly comprises a first clamping block and a second clamping block, and the second clamping assembly comprises a first clamping block and a second clamping block; the second clamping block is provided with a rectangular through hole, the first clamping block penetrates through the rectangular through hole and is mutually intersected with the second clamping block, the first clamping block is in sliding fit with the rectangular through hole, a circular through hole is formed along the intersecting center line, and the circular through hole penetrates through the first clamping block and the second clamping block; rotating the connecting pin through the circular through hole; the driving device is used for driving the first clamping assembly and the second clamping assembly to be close to/far away from each other, and the first clamping block and the second clamping block on the first clamping assembly are matched with the first clamping block and the second clamping block on the second clamping assembly to form a diamond clamping structure.

Preferably, the driving device comprises a motor, the motor is fixedly arranged at one side of the second mounting plate, and the motor is horizontally arranged; the output shaft of the motor is fixedly connected with a coaxial bidirectional threaded rod; the bidirectional threaded rod is rotationally connected with the second mounting plate; the upper end of the second mounting plate is provided with a second sliding groove which is horizontally arranged, two sliding plates which are vertically arranged are in sliding fit in the second sliding groove, threaded through holes are formed in the two sliding plates, and the sliding plates are positioned on two sides of the bidirectional threaded rod; the bidirectional threaded rod is in threaded connection with a threaded through hole on the sliding plate; the upper end of the sliding plate is provided with a through groove with a notch, the through groove is arranged along the sliding direction of the sliding plate, two parallel side walls of the through groove are provided with pin holes, the two pin holes are coaxial, and the pin holes are in running fit with the connecting pin.

Preferably, two side plates which are parallel to each other and are vertically arranged are fixedly arranged on the second mounting plate; the side plates are parallel to the sliding plate and are positioned at two ends of the second sliding groove; a connecting round rod is fixedly arranged on both side plates of the second mounting plate, and a vertical downward connecting block is fixedly arranged on one end face of the connecting round rod; the upper end of the connecting block is hinged with a connecting rod, and the lower end of the connecting block is hinged with another connecting rod; the connecting rod of connecting block lower extreme is kept away from the one end of connecting block and is articulated with the one end of first clamp splice, the one end that the connecting rod of connecting block upper end was kept away from the connecting block is articulated with the one end of second clamp splice.

Preferably, the mounting plates are provided with mounting holes.

Preferably, rubber pads are arranged on the first clamping assembly and the second clamping assembly.

Compared with the prior art, the utility model has the following beneficial effects: only one driving source is designed to drive the clamping and positioning, so that the operation is simple and the cost is low; meanwhile, the simple connecting rod mechanism is arranged to realize the functions of clamping and positioning, the structure is simple, and the production efficiency is high.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the clamping jaw of the present utility model;

FIG. 3 is a schematic diagram of a second perspective mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a clamp block connecting structure of the present utility model;

FIG. 5 is a schematic view of the structure of a clamping block according to the present utility model;

FIG. 6 is a schematic view of the structure of the connecting block of the present utility model;

In the figure: 1. a first mounting plate; 2. a cylinder; 3. a first jaw; 4. a rubber pad; 5. a second jaw; 6. a first connection plate; 7. a first chute; 8. a mounting hole; 9. a second connecting plate; 10. a slide plate; 11. a two-way threaded rod; 12. a second chute; 13. a second mounting plate; 14. a motor; 15. connecting round rods; 16. a first clamping block; 17. a second clamping block; 18. a connecting pin; 19. a connecting rod; 20. and (5) connecting a block.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it will be apparent that the described embodiments are only some, but not all, embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

A stop valve machining fixture as described in figures 1-6.

Example 1

A stop valve processing positioning fixture is provided, wherein mounting holes 8 are formed in the positions of four corners of a first mounting plate 1, on the first mounting plate 1, and the mounting holes 8 fix the fixture on a workbench of a drilling machine through screws.

The first mounting plate 1 is fixedly connected with a cylinder 2 which is a power source.

The driving device is an air cylinder 2, the end face of an output shaft of the air cylinder 2 is fixedly connected to one side face of a second connecting plate 9, a plurality of first clamping jaws 3 which are parallel to each other are uniformly arranged on the other side face of the second connecting plate 9, the first clamping jaws 3 are ensured to work on the stop valve simultaneously, and the air cylinder 2 is used for ensuring that the first clamping jaws 3 move in the horizontal direction.

The first clamping jaw 3 and the second connecting plate 9 together form a first clamping assembly.

The upper end of the first mounting plate 1 is provided with a plurality of first sliding grooves 7, and the first sliding grooves 7 are in sliding fit with the first clamping jaws 3. The upper surface of the first mounting plate 1 is fixedly provided with second clamping claws 5, the second clamping claws 5 are positioned at two sides of the first sliding groove 7, and the second clamping claws 5 are parallel to the first clamping claws 3. The second clamping jaw 5 is fixedly arranged on the first connecting plate 6, so that clamping stability is improved, and meanwhile, the second clamping jaw 5 is reinforced.

The second clamping jaw 5 and the first connecting plate 6 together form a second clamping assembly.

The shape and the size of the first clamping jaw 3 and the second clamping jaw 5 are the same, and the claw parts of the two clamping jaws are provided with rubber pads 4, so that the clamping of the stop valve is tighter, and the surface of the stop valve is not damaged by the clamping jaws. The first clamping jaw 3 moves towards the second clamping jaw 5 to form a diamond clamping structure to position and clamp the stop valve.

Example 2

A stop valve machining positioning fixture is provided, and the mounting plate is a second mounting plate 13. The two side end surfaces of the second mounting plate 13 are fixedly provided with side plates which are vertically arranged. Mounting holes 8 are formed in the positions of the four corners of the second mounting plate 13, and the mounting holes 8 fix the clamp on the workbench of the drilling machine through screws.

Connecting round rods 15 are fixedly arranged on the inner surfaces of the two side plates of the second mounting plate 13 and used for supporting the connecting blocks 20. The end part of the connecting round rod 15 is fixedly provided with a connecting block 20, and the upper end and the lower end of the connecting block 20 are hinged with connecting rods 19 for connection and transmission. The connecting rod 19 at the upper end of the connecting block 20 is hinged with the second clamping block 17, and the connecting rod 19 at the lower end of the connecting block 20 is hinged with the first clamping block 16.

The second clamping block 17 is provided with a rectangular through hole, and the first clamping block 16 passes through the rectangular through hole of the second clamping block 17 and is mutually intersected with the second clamping block 17. The rectangular through holes of the first clamping block 16 and the second clamping block 17 are in sliding fit, so that the first clamping block 16 and the second clamping block 17 can rotate relatively to clamp and position. A circular through hole is formed along the crossing center line of the first clamping block 16 and the second clamping block 17, and the circular through hole passes through the first clamping block 16 and the second clamping block 17. The circular through hole is internally provided with a rotary fit connection pin 18.

The first clamping component and the second clamping component are composed of a first clamping block 16, a second clamping block 17 and a connecting pin 18

The second mounting plate 13 is provided with a second sliding groove 12, and the second sliding groove 12 is slidably matched with the two sliding plates 10. The slide plate 10 is placed vertically and parallel to the side plates. The upper end of the slide plate 10 is provided with a through groove with a notch, and two parallel side walls of the through groove are provided with coaxial pin holes for limiting and supporting the connecting pin 18. The lower end of the slide plate 10 is provided with a threaded through hole along the sliding direction of the slide plate 10 for transmission.

One side of the second mounting plate 13 is fixedly connected with a power source motor 14. The output shaft of the motor 14 is fixedly connected with the bidirectional threaded rod 11, the bidirectional threaded rod 11 is rotatably connected to the second mounting plate 13, the bidirectional threaded rod 11 is positioned in the second sliding groove 12, and the bidirectional threaded rod 11 can only rotate around the axis of the bidirectional threaded rod 11 and cannot move left and right or up and down.

The bidirectional threaded rod 11 is in threaded connection with the threaded through hole on the sliding plate 10, and the screw directions of the threads on the two sides of the bidirectional threaded rod 11 are opposite, so that when the output shaft of the motor 14 rotates to drive the bidirectional threaded rod 11 to rotate, the two sliding plates 10 slide relatively.

The motor 14, the threaded bi-directional rod 11 and the slide 10 together form a drive.

The connecting pin 18 cooperates with the pin hole on the slide plate 10 to support the first clamping block 16 and the second clamping block 17, and meanwhile, the connecting pin 18 cannot slide out of the pin hole. The sliding plate 10 slides relatively to drive the first clamping assembly and the second clamping assembly to be close to each other to form a diamond clamping structure, so that the stop valve is positioned and clamped.

The rubber pad 4 is fixedly arranged on one side, far away from the connecting rod 19, of the first clamping block 16 and the second clamping block 17, so that the stop valve is clamped more tightly, and the surface of the stop valve is prevented from being damaged by the clamping jaw.

Working principle:

principle of operation one

Before the start of the operation, the jig is mounted on the table through the mounting hole 8, and the output of the cylinder 2 is in a retracted state. The work starts and a workpiece to be processed is placed between the first jaw 3 and the second jaw 5.

Starting the cylinder 2, and extending the output shaft of the cylinder 2, wherein the extending action of the output shaft of the cylinder 2 drives the second connecting plate 9 to move along the extending direction of the output shaft of the cylinder 2, and as the first clamping jaw 3 is fixedly connected to the second connecting plate 9, the first clamping jaw 3 moves along with the second connecting plate 9. Because the first clamping jaw 3 is in sliding fit with the sliding groove on the first mounting plate 1, the first clamping jaw 3 slides along the sliding groove to approach to the workpiece to be machined. The second clamping jaw 5 is fixed on the first mounting plate 1 and is in a static state, and the first clamping jaw 3 is continuously close to the second clamping jaw 5 to clamp a workpiece to be machined between the first clamping jaw 3 and the second clamping jaw 5, so that clamping and positioning are realized. The cylinder 2 is in the closed state at this time.

When the workpiece to be machined is machined, the air cylinder 2 is started, the output end of the air cylinder 2 is retracted to contact, clamp and position, the machined workpiece is taken down, the air cylinder 2 is stopped, and the work is finished.

Working principle II

In the initial state, the two sliding plates 10 are respectively positioned at two sides of the bidirectional threaded rod 11. Work is started and the workpiece to be processed is placed between the two slide plates 10.

The motor 14 is started, and the output shaft of the motor 14 rotates to drive the bidirectional threaded rod 11 to rotate. Since the sliding plates 10 are in threaded connection with the bi-directional threaded rod 11, and the screw directions of the threads on both sides of the bi-directional threaded rod 11 are opposite, the two sliding plates 10 slide relatively along the second sliding groove 12.

When the two sliding plates 10 slide relatively, the sliding plates 10 drive the first clamping block 16 and the second clamping block 17 to move synchronously. Since the first clamping block 16 is hinged on the connecting rod 19 at the lower end of the connecting block 20, the second clamping block 17 is hinged on the connecting rod 19 at the upper end of the connecting block 20, the connecting rod 19 is hinged on the connecting block 20, the connecting block 20 is fixed on the connecting round rod 15, the connecting round rod 15 is fixed on the second mounting plate 13, and the length of the connecting rod 19 is unchanged. The connecting rod 19 rotates both on the connecting block 20 and on the first 16 and second 17 clamping blocks.

Under the action of force, the first clamping block 16 and the second clamping block 17 rotate relatively because the first clamping block 16 and the second clamping block 17 are intersected with each other and are rotationally connected with the connecting pin 18. Simultaneously, the two sliding plates 10 are close to each other, and the first clamping block 16 and the second clamping block 17 on the two sliding plates 10 are driven to be close to each other, so that a diamond clamping structure is formed, namely, the work of clamping and positioning the workpiece to be processed is performed. At this point the motor 14 stops operating.

When the workpiece to be processed is processed, the motor 14 starts to turn over, the slide plate 10 is separated, the first clamping block 16 and the second clamping block 17 do opposite actions to the clamping, the clamping and positioning are released, the processed workpiece is taken down, the motor 14 stops rotating, and the work is finished.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Stop valve adds clamping apparatus, including the mounting panel, its characterized in that: the mounting plate is provided with a driving device, and the output end of the driving device is provided with a first clamping component and a second clamping component; the first clamping assembly and the second clamping assembly are mutually matched to form a diamond clamping structure.

2. A stop valve machining positioning fixture according to claim 1, characterized in that the mounting plate comprises a first mounting plate (1), the first clamping assembly comprises a first clamping jaw (3), and the second clamping assembly comprises a second clamping jaw (5); the upper surface of the first mounting plate (1) is provided with a plurality of first sliding grooves (7) which are parallel to each other, and the first sliding grooves (7) are horizontally arranged; the first clamping jaw (3) is in sliding fit with the first sliding groove (7), and the first clamping jaw (3) is fixedly connected to the second connecting plate (9); the second clamping jaws (5) are positioned on two sides of the first sliding groove (7), the second clamping jaws (5) are fixedly arranged on the upper surface of the first mounting plate (1), and the second clamping jaws (5) are fixedly connected to the first connecting plate (6); the driving device is used for driving the first clamping jaw to slide back and forth in the first sliding groove so as to be close to/far away from the second clamping jaw, and the first clamping jaw (3) and the second clamping jaw (5) are mutually matched to form a diamond clamping structure.

3. The stop valve machining positioning fixture according to claim 2, wherein the driving device comprises a cylinder (2), the cylinder (2) is horizontally placed, the cylinder (2) is fixedly installed on the first installation plate (1), and an output shaft of the cylinder (2) is fixedly connected with the second connection plate (9).

4. A stop valve machining positioning fixture according to claim 1, characterized in that the mounting plate comprises a second mounting plate (13), the first clamping assembly comprising a first clamping block (16) and a second clamping block (17), the second clamping assembly comprising a first clamping block (16) and a second clamping block (17); the second clamping block (17) is provided with a rectangular through hole, the first clamping block (16) penetrates through the rectangular through hole and is mutually intersected with the second clamping block (17), the first clamping block (16) is in sliding fit with the rectangular through hole, a circular through hole is formed along the intersecting center line, and the circular through hole penetrates through the first clamping block (16) and the second clamping block (17); a rotary connecting pin (18) in the circular through hole; the driving device is used for driving the first clamping assembly and the second clamping assembly to be close to/far away from each other, and the first clamping block (16) and the second clamping block (17) on the first clamping assembly are matched with the first clamping block (16) and the second clamping block (17) on the second clamping assembly to form a diamond clamping structure.

5. A stop valve machining positioning fixture according to claim 3, characterized in that the driving means comprises a motor (14), the motor (14) is fixedly arranged at one side of the second mounting plate (13), and the motor (14) is horizontally arranged; the output shaft of the motor (14) is fixedly connected with a coaxial bidirectional threaded rod (11); the bidirectional threaded rod (11) is rotationally connected with the second mounting plate (13); the upper end of the second mounting plate (13) is provided with a second sliding groove (12) which is horizontally arranged, two sliding plates (10) which are vertically arranged are in sliding fit with each other in the second sliding groove (12), threaded through holes are formed in the two sliding plates (10), and the sliding plates (10) are positioned on two sides of the bidirectional threaded rod (11); the bidirectional threaded rod (11) is in threaded connection with a threaded through hole on the sliding plate (10); the upper end of the sliding plate (10) is provided with a through groove with a notch, the through groove is arranged along the sliding direction of the sliding plate (10), two parallel side walls of the through groove are provided with pin holes, the two pin holes are coaxial, and the pin holes are in running fit with the connecting pin (18).

6. The stop valve machining positioning fixture according to claim 4, wherein two side plates which are parallel to each other and vertically arranged are fixedly arranged on the second mounting plate (13); the side plates are parallel to the sliding plate (10), and the two side plates are positioned at two ends of the second sliding groove (12); a connecting round rod (15) is fixedly arranged on both side plates of the second mounting plate (13), and a vertical downward connecting block (20) is fixedly arranged on one end surface of the connecting round rod (15); the upper end of the connecting block (20) is hinged with a connecting rod (19), and the lower end of the connecting block is hinged with another connecting rod (19); one end, away from connecting block (20), of connecting rod (19) of connecting block (20) lower extreme is articulated with one end of first clamp splice (16), one end, away from connecting block (20), of connecting rod (19) of connecting block (20) upper end is articulated with one end of second clamp splice (17).

7. The stop valve machining positioning fixture according to claim 1, wherein the mounting plates are provided with mounting holes (8).

8. The stop valve machining positioning fixture according to claim 1, wherein rubber pads (4) are arranged on the first clamping assembly and the second clamping assembly.