Valve machining positioning clamp

Abstract

The utility model discloses a valve machining positioning clamp which comprises a box body and an inner support clamping positioning mechanism. The interior of the box body is rotationally connected with a driving rotating shaft; the inner supporting clamping positioning mechanism comprises a cross-shaped plate, sliding grooves, sliding blocks, limiting rods and inner supporting rods, the cross-shaped plate is fixedly connected to the right end of the driving rotating shaft, the sliding grooves which are evenly distributed are formed in the right side face of the cross-shaped plate, the sliding blocks are slidably connected into the sliding grooves, the inner supporting rods are arranged on the right side faces of the sliding blocks, and the limiting rods are arranged on the inner supporting rods. Limiting rods are arranged in the sliding grooves correspondingly, the outer arc faces of the limiting rods are slidably connected with the middles of the sliding blocks located in the same sliding groove, flexibility is high, the outer surface of the valve body can be exposed to be subjected to machining operation in an inner supporting mode, the machining face of the valve body can be automatically changed after the valve body is clamped through the valve machining positioning clamp, flexibility is high, and machining efficiency is high. By means of the inner supporting mode, the outer surface of the valve body can be exposed to be machined.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a valve machining positioning fixture. BACKGROUND

[0002] Valve is used to open and close pipeline, controls flow direction, adjusts and controls the parameter (temperature, pressure and flow) of delivery medium, and is divided into shut-off valve, check valve and regulating valve according to its function, and valve is the control component in fluid conveying system, has the functions of cut-off, regulation, flow guide, preventing backflow, pressure stabilization, shunt or overflow pressure relief, etc.

[0003] The prior art CN202320485311.6 discloses a valve automatic machining positioning fixture, which comprises a workbench, a first motor is arranged at the bottom of the workbench, a rotating shaft is arranged at the top of the first motor, a dividing head is arranged at the top of the rotating shaft, a transmission shaft is arranged at the two sides of the dividing head, a coupling is arranged at one end of the transmission shaft, a threaded rod is arranged in the coupling, a fixed support is fixedly connected to the top of the workbench, a bearing is arranged at the top of the fixed support, a lifting plate is threadedly connected to the threaded rod, a second motor is arranged on the lifting plate, and an electric telescopic rod is arranged at one end of the second motor.

[0004] The above-mentioned valve body clamp has some problems in use, for example, the above-mentioned clamp clamps the outer arc surface of the valve body, the clamped surface cannot be machined when the valve body is machined, the valve body cannot be rotated after clamping, and the flexibility is poor. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a valve machining positioning fixture, which has high flexibility and can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a valve machining positioning fixture, comprising a box body and an inner support clamping positioning mechanism.

[0007] The box body is internally rotatably connected with a driving shaft;

[0008] The inner support clamping positioning mechanism comprises a cross-shaped plate, a sliding groove, a sliding block, a limiting rod and an inner support rod, the cross-shaped plate is fixedly connected to the right end of the driving shaft, uniform distribution sliding grooves are formed in the right side surface of the cross-shaped plate, the sliding grooves are internally slidably connected with sliding blocks, the right side surfaces of the sliding blocks are all provided with the inner support rods, the sliding grooves are all provided with the limiting rods, the outer arc surfaces of the limiting rods are all slidably connected with the middle parts of the sliding blocks in the same sliding groove, the flexibility is strong, the outer surface of the valve body can be exposed to accept machining operation through the inner support mode, the valve body can change the machining surface after clamping, the flexibility is strong, and the outer surface of the valve body can be exposed to accept machining operation through the inner support mode.

[0009] Further, the inner support clamping positioning mechanism further comprises a limiting frame, a sliding cylinder, middle rotating seats, side rotating seats and connecting rods, the limiting frame is arranged at the middle part of the right side surface of the cross-shaped plate, the sliding cylinder is slidably connected to the inside of the limiting frame, the outer arc surface of the sliding cylinder is provided with uniformly distributed middle rotating seats, one side of the four inner support rods facing the center of the limiting frame is provided with a side rotating seat, the inside of each middle rotating seat is rotatably connected with a connecting rod through a rotating shaft symmetrically left and right to the inside of the side rotating seat on the same side, so that the transmission function is realized.

[0010] Further, it further comprises anti-skid rubber pads, the anti-skid rubber pads are arranged on the side of the four inner support rods away from the center of the limiting frame, so that the flexible contact function is realized.

[0011] Further, it further comprises a driving screw rod, the driving screw rod is rotatably connected between the right inner wall of the limiting frame and the right side wall of the cross-shaped plate, the outer threaded surface of the driving screw rod is threadedly connected with the middle part of the sliding cylinder, and the right end of the driving screw rod is provided with a rotating handle, so that the driving function is realized.

[0012] Further, it further comprises a control switch, the control switch is arranged on the rear side of the upper surface of the box body, the input end of the control switch is electrically connected with an external power supply, so that the function of controlling the operation of the motor is realized.

[0013] Further, it further comprises a worm, the worm is rotatably connected to the middle part between the upper and lower inner walls of the box body, the outer arc surface of the rotating shaft is fixedly sleeved with a worm wheel, the worm wheel is meshingly connected with the worm, a speed reducer motor is arranged at the middle part of the upper surface of the box body, the output shaft of the speed reducer motor is fixedly connected with the upper end of the worm, and the input end of the speed reducer motor is electrically connected with the output end of the control switch, so as to provide power for the rotation of the valve body.

[0014] Further, it further comprises a mounting plate, the mounting plate is arranged on the rear side of the box body, so that the function of mounting the clamp is realized.

[0015] Compared with the prior art, the valve machining positioning clamp has the following advantages:

[0016] When the valve needs to be clamped, the cross-shaped plate can be driven to rotate in a worm and worm gear transmission mode, the rotating handle is manually controlled, the sliding cylinder moves left and right, the four side rotating seats are driven to relatively move away through the parallelogram mechanism, the anti-skid rubber pads on the inner support rods contact the inner wall of the valve body, the valve body is tightly supported under the influence of the inner support force, the valve body is locked by the driving rotating shaft through the worm and the worm wheel, the cross-shaped plate is positioned, and the valve body is positioned, so that the valve body can change the machining surface after being clamped, the flexibility is high, and the outer surface of the valve body can be exposed for receiving machining operation through the inner support mode. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model discloses a structure schematic drawing;

[0018] Figure 2 The utility model discloses a worm wheel, worm and reduction motor structure schematic drawing;

[0019] Figure 3 The utility model discloses an inner support clamping positioning mechanism structure schematic drawing;

[0020] Figure 4 The utility model discloses a slide cylinder structure schematic drawing.

[0021] In the drawing: 1 box, 2 rotating shaft, 3 inner support clamping positioning mechanism, 301 cross shape board, 302 limit support, 303 slide cylinder, 304 slide groove, 305 sliding block, 306 limit rod, 307 inner support rod, 308 middle rotating seat, 309 side rotating seat, 310 connecting rod, 4 antiskid rubber pad, 5 drive screw, 6 rotating handle, 7 worm wheel, 8 worm, 9 reduction motor, 10 control switch, 11 mounting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The embodiment provides a kind of technical scheme: a valve machining positioning fixture, including box 1 and inner support clamping positioning mechanism 3;

[0024] Box 1: its inside rotationally connected with drive rotating shaft 2, still include control switch 10, control switch 10 is set to the upper surface rear side of box 1, the input end of control switch 10 is electrically connected with external power supply, still include worm 8, worm 8 is rotationally connected between the upper and lower inner wall of box 1 middle part, the outer cam surface of rotating shaft 2 is fixedly provided with worm wheel 7, worm wheel 7 is engaged with worm 8, the upper surface middle part of box 1 is equipped with reduction motor 9, the output shaft of reduction motor 9 is fixedly connected with the upper end of worm 8, the input end of reduction motor 9 is electrically connected with the output end of control switch 10, still include mounting plate 11, mounting plate 11 is set to the rear side of box 1, control switch 10 can be regulated and controlled at this time, reduction motor 9 operates, the output shaft of reduction motor 9 rotates, in turn drives worm 8 to rotate, in turn drives worm wheel 7 to rotate;

[0025] The inner support clamping positioning mechanism 3 comprises a cross-shaped plate 301, a sliding groove 304, a sliding block 305, a limiting rod 306 and an inner support rod 307. The cross-shaped plate 301 is fixedly connected to the right end of the driving shaft 2. The right side surface of the cross-shaped plate 301 is provided with uniformly distributed sliding grooves 304. The inner sides of the sliding grooves 304 are slidably connected with sliding blocks 305. The right side surfaces of the sliding blocks 305 are provided with inner support rods 307. The inner sides of the sliding grooves 304 are provided with limiting rods 306. The outer arc surfaces of the limiting rods 306 are slidably connected with the middle parts of the sliding blocks 305 located in the same sliding groove 304. The inner support clamping positioning mechanism 3 further comprises a limiting frame 302, a sliding cylinder 303, middle rotating seats 308, side rotating seats 309 and connecting rods 310. The limiting frame 302 is arranged at the middle part of the right side surface of the cross-shaped plate 301. The inner side of the limiting frame 302 is slidably connected with the sliding cylinder 303. The outer arc surface of the sliding cylinder 303 is provided with uniformly distributed middle rotating seats 308. One side of each of the four inner support rods 307 facing the center of the limiting frame 302 is provided with a side rotating seat 309. The inner sides of the middle rotating seats 308 are respectively and symmetrically rotatably connected with the connecting rods 310 through mounting shafts with the inner sides of the side rotating seats 309 located on the same side. The inner support clamping positioning mechanism 3 further comprises anti-skid rubber pads 4 arranged on the sides of the four inner support rods 307 away from the center of the limiting frame 302. The inner support clamping positioning mechanism 3 further comprises a driving screw 5 rotatably connected between the right inner wall of the limiting frame 302 and the right side wall of the cross-shaped plate 301. The outer threaded surface of the driving screw 5 is threadedly connected with the middle part of the sliding cylinder 303. The right end of the driving screw 5 is provided with a handle 6. When valve clamping positioning operation is needed, the valve body can be manually held and the inner cavity thereof is inserted into the column formed by the inner support rods 307. At this time, the handle 6 can be manually controlled to drive the cross-shaped plate 301 to rotate through the driving shaft 2. At this time, the handle 6 is manually controlled and the driving screw 5 is in a state that it cannot be easily rotated. When the cross-shaped plate 301 rotates, the sliding cylinder 303 can be driven to displace leftward in the limiting frame 302, thereby driving the four middle rotating seats 308 to move leftward at the same time, thereby driving the four side rotating seats 309 to relatively move away from each other through the connecting rods 310, thereby driving the four inner support rods 307 to relatively move away from each other, until the anti-skid rubber pads 4 on the four inner support rods 307 contact the inner wall of the valve body. At this time, affected by the inward force, the rotating force applied to the hand by the handle 6 will become larger. At this time, the handle 6 can be manually released, and the clamping operation of the valve body can be completed. When the valve body needs to be manually rotated, the control switch 10 can be adjusted and controlled to drive the output shaft of the speed reducer 9 to rotate forward and reversely, thereby driving the cross-shaped plate 301 to rotate forward and reversely, thereby driving the valve body to rotate forward and reversely. When rotation needs to be stopped, the control switch 10 can be controlled to stop the operation of the speed reducer 9. The worm 7 and the worm gear 8 lock the driving shaft 2, thereby locking the cross-shaped plate 301, thereby completing the positioning operation of the valve body.

[0026] The working principle of the valve machining positioning clamp is as follows: when the valve clamping positioning operation is needed, the valve body can be manually picked up and the inner cavity is inserted into the cylinder composed of the inner support rods 307, at this time, the handle 6 can be manually controlled, the control switch 10 can be adjusted and controlled, the speed reducer motor 9 is operated, the output shaft of the speed reducer motor 9 rotates, the worm 8 is driven to rotate, the worm wheel 7 is driven to rotate, the cross-shaped plate 301 is driven to rotate through the driving shaft 2, at this time, the handle 6 is manually controlled, the driving screw 5 is in a state that is not easy to rotate, when the cross-shaped plate 301 rotates, the sliding cylinder 303 can be driven to displace leftwards in the limiting frame 302, four middle rotating seats 308 are driven to move leftwards at the same time, the four side rotating seats 309 are driven to relatively move away from each other through the connecting rods 310, the four inner support rods 307 are driven to relatively move away from each other, until the anti-skid rubber pads 4 on the four inner support rods 307 contact the inner wall of the valve body, at this time, the rotating force applied to the hand by the handle 6 is increased due to the influence of the support force, at this time, the handle 6 can be manually released, and the clamping operation of the valve body is completed, when the valve body needs to be manually rotated, the control switch 10 can be adjusted and controlled, the output shaft of the speed reducer motor 9 is positively or reversely rotated, the cross-shaped plate 301 is positively or reversely rotated, and the valve body is positively or reversely rotated, when the rotation needs to be stopped, the control switch 10 can be controlled, the speed reducer motor 9 is stopped, the worm wheel 7 and the worm 8 lock the driving shaft 2, the cross-shaped plate 301 is locked, and the positioning operation of the valve body is completed.

[0027] It is worth noting that the speed reducer motor 9 disclosed in the above embodiment can be freely configured according to the actual application scene, and the speed reducer motor 9 is recommended to be an RV series driving speed reducer motor, and the control switch 10 is provided with a control button corresponding to the speed reducer motor 9 and used for controlling the switch of the speed reducer motor 9.

[0028] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation obtained by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A valve machining positioning fixture, characterized in that: Includes a housing (1) and an internal support clamping and positioning mechanism (3); Box (1): Its interior is rotatably connected to a drive shaft (2); The internal support clamping and positioning mechanism (3) includes a cross-shaped plate (301), a groove (304), a slider (305), a limiting rod (306), and an internal support rod (307). The cross-shaped plate (301) is fixedly connected to the right end of the drive shaft (2). The right side of the cross-shaped plate (301) is provided with a uniformly distributed groove (304). The inside of the groove (304) is slidably connected to a slider (305). The right side of the slider (305) is provided with an internal support rod (307). The inside of the groove (304) is provided with a limiting rod (306). The outer arc surface of the limiting rod (306) is slidably connected to the middle part of the slider (305) located in the same groove (304).

2. The valve processing positioning fixture according to claim 1, characterized in that: The inner support clamping and positioning mechanism (3) also includes a limiting frame (302), a slide cylinder (303), a central rotating seat (308), a side rotating seat (309), and a connecting rod (310). The limiting frame (302) is located in the middle of the right side of the cross-shaped plate (301). The slide cylinder (303) is slidably connected inside the limiting frame (302). The outer arc surface of the slide cylinder (303) is provided with evenly distributed central rotating seats (308). The side of each of the four inner support rods (307) facing the center of the limiting frame (302) is provided with a side rotating seat (309). The interior of the central rotating seat (308) and the interior of the side rotating seat (309) located on the same side are symmetrically connected to the connecting rod (310) by means of a mounting shaft.

3. The valve processing positioning fixture according to claim 1, characterized in that: It also includes anti-slip rubber pads (4), which are respectively set on the side of the four inner support rods (307) away from the center of the limiting frame (302).

4. A valve processing positioning fixture according to claim 1, characterized in that: It also includes a drive screw (5), which is rotatably connected between the right inner wall of the limit frame (302) and the right side wall of the cross-shaped plate (301). The external thread surface of the drive screw (5) is threadedly connected to the middle part of the slide cylinder (303). A throttle (6) is provided at the right end of the drive screw (5).

5. A valve processing positioning fixture according to claim 1, characterized in that: It also includes a control switch (10), which is located on the rear side of the upper surface of the housing (1), and the input end of the control switch (10) is electrically connected to an external power source.

6. A valve processing positioning fixture according to claim 5, characterized in that: It also includes a worm (8), which is rotatably connected to the middle between the upper and lower inner walls of the housing (1). A worm wheel (7) is fixedly sleeved on the outer arc surface of the rotating shaft (2). The worm wheel (7) meshes with the worm (8). A geared motor (9) is provided in the middle of the upper surface of the housing (1). The output shaft of the geared motor (9) is fixedly connected to the upper end of the worm (8). The input end of the geared motor (9) is electrically connected to the output end of the control switch (10).

7. A valve processing positioning fixture according to claim 1, characterized in that: It also includes a mounting plate (11), which is disposed on the rear side of the housing (1).

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