Positioning tool for valve body machining

Abstract

The utility model discloses a positioning tool for valve body machining, which relates to the technical field of valve body machining and comprises a U-shaped frame, supporting plates are fixed at the upper ends of vertical sections on two sides of the U-shaped frame, electric push rods are fixed at the upper ends of horizontal sections of the U-shaped frame of the supporting plates, and the upper ends of the electric push rods extend to the upper parts of the supporting plates and are connected with lifting plates. And four mounting grooves are formed in the side of the lifting plate at equal intervals. According to the valve body clamping device, the electric push rod retracts to drive the lifting plate to descend, and then the four connecting rods are pulled downwards at the same time, so that the four clamping jaws rotate towards the center of the supporting plate synchronously, a valve body is clamped through the upper ends of the four clamping jaws, the valve body is fixed rapidly and stably, shaking of the valve body during machining is avoided, and the valve body can be clamped by opening an electromagnetic valve. The high-pressure air is blown to the valve body from the air blowing nozzle, so that residual scraps on the valve body are blown away, the valve body is effectively cleaned, and the scraps generated by machining the valve body are intensively swept to the annular collecting groove and finally intensively cleaned out from the drain outlet.

Description

Technical Field

[0001] This utility model relates to the field of valve body processing technology, and in particular to a positioning fixture for valve body processing. Background Technology

[0002] In the valve body machining process, in addition to precise positioning, many other challenges are faced. For example, when drilling and tapping the valve body, due to its complex structure and potentially uneven surface, existing machining equipment often struggles to hold the valve body stably, causing it to wobble during machining. This affects machining accuracy and surface quality. Furthermore, the debris generated during machining is difficult to collect and clean. If it accumulates on the valve body surface or in the machining area, it may damage the machining tools, further impacting machining results and equipment lifespan. Therefore, a positioning fixture for valve body machining is provided. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for valve body processing. It utilizes an electric push rod to retract, causing a lifting plate to descend and simultaneously pulling down four connecting rods. This causes the four grippers to rotate synchronously towards the center of the support plate, thereby clamping the valve body using the upper ends of the four grippers. This achieves rapid and stable fixation of the valve body, preventing it from shaking during processing. By opening a solenoid valve, high-pressure gas is blown from the air nozzle onto the valve body, effectively cleaning any residual debris. The debris generated during valve body processing is then collected and swept into an annular collection groove, and finally discharged through the drain port. This convenient and quick solution overcomes the deficiencies of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A positioning fixture for valve body processing includes a U-shaped frame. A support plate is fixed to the upper end of the vertical sections on both sides of the U-shaped frame. An electric push rod is fixed to the upper end of the horizontal section of the U-shaped frame of the support plate. The upper end of the electric push rod extends above the support plate and is connected to a lifting plate. Four mounting slots are equidistantly provided on the side of the lifting plate. Four connecting blocks are equidistantly fixed to the upper surface of the support plate. Each of the four connecting blocks is rotatably connected to a gripper via a connecting pin. One side of each of the four grippers is rotatably connected to a connecting rod. One end of each of the four connecting rods is rotatably connected to the lifting plate at one of the four mounting slots via a connecting pin. An annular collection groove is fixed to the side of the support plate, and a drain outlet is provided in the annular collection groove. A support platform is fixed to the support plate.

[0006] As a further embodiment of this utility model: the support platform includes a support rod fixed to the upper surface of the support plate, and a support plate is fixed to the upper end of the support rod.

[0007] As a further improvement of this utility model: four support rods are provided, and the four support rods are evenly distributed on the lower end face of the support plate.

[0008] As a further improvement of this utility model, the lifting plate is slidably sleeved on the four support rods.

[0009] As a further embodiment of this utility model: an L-shaped support rod is fixed to the upper side of the tray, a screw is screwed to one end of the horizontal section of the L-shaped support rod, a fixing block is rotatably connected to the lower end of the screw through a bearing, and a handle is provided at the upper end of the screw.

[0010] As a further embodiment of this utility model: an air nozzle is movably installed below the horizontal section of the L-shaped support rod, one end of the air nozzle is connected to a solenoid valve, one end of the solenoid valve is connected to an air pipe, and one end of the air pipe is connected to an external air compressor.

[0011] As a further improvement of this utility model: the lower end of the horizontal section of the L-shaped support rod is fixed with a universal ball joint, and the air nozzle is fixed on one side of the universal ball joint.

[0012] As a further improvement of this utility model: a limiting hole is provided on the vertical section of the L-shaped support rod, and the air tube passes through the limiting hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] The electric push rod retracts, causing the lifting plate to descend. Simultaneously, it pulls down four connecting rods, causing the four grippers to rotate synchronously towards the center of the support plate. This grips the valve body with the upper ends of the four grippers, achieving fast and stable fixation of the valve body and preventing it from shaking during processing. By opening the solenoid valve, high-pressure gas is blown from the air nozzle onto the valve body to blow away residual debris, effectively cleaning the valve body. The debris generated during valve body processing is collected and swept into the annular collection groove, and finally discharged from the drain port. This process is convenient and quick. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of a positioning fixture for valve body processing proposed in this utility model.

[0016] Figure 2 This is a second-view three-dimensional structural diagram of a positioning fixture for valve body processing proposed in this utility model.

[0017] Figure 3 This is a third-view three-dimensional structural diagram of a positioning fixture for valve body processing proposed in this utility model.

[0018] Figure 4 This utility model proposes a positioning fixture for valve body machining. Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. U-shaped frame; 2. Annular collection trough; 3. Drain outlet; 4. Support plate; 5. Limiting hole; 6. L-shaped support rod; 7. Screw; 8. Handle; 9. Fixing block; 10. Gripper; 11. Lifting plate; 12. Electric push rod; 13. Mounting groove; 14. Support plate; 15. Support rod; 16. Universal ball joint; 17. Air nozzle; 18. Air pipe; 19. Connecting block; 20. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1-4 A positioning fixture for valve body processing includes a U-shaped frame 1, which can be fixed to the work station by bolts. The upper ends of the vertical sections on both sides of the U-shaped frame 1 are fixed with a support plate 4. The upper ends of the horizontal sections of the U-shaped frame 1 of the support plate 4 are fixed with an electric push rod 12. The upper end of the electric push rod 12 extends above the support plate 4 and is connected to a lifting plate 11. Four mounting slots 13 are equally spaced on the side of the lifting plate 11. Four connecting blocks 19 are equally spaced on the upper surface of the support plate 4. Each of the four connecting blocks 19 is rotatably connected with a gripper 10 by a connecting pin. Each of the four grippers 10 is rotatably connected with a connecting rod 20 on one side. One end of each of the four connecting rods 20 is rotatably connected to the lifting plate 11 at the four mounting slots 13 by a connecting pin. An annular collection trough 2 is fixed on the side of the support plate 4. A drain outlet 3 is opened on the annular collection trough 2. A support platform is fixed on the support plate 4.

[0022] The support platform includes a support rod 15 fixed to the upper surface of the support plate 4, and a support plate 14 is fixed to the upper end of the support rod 15.

[0023] There are four support rods 15, and the four support rods 15 are evenly distributed on the lower end face of the support plate 14. The lifting plate 11 is slidably sleeved on the four support rods 15.

[0024] An L-shaped support rod 6 is fixed to the upper side of the support plate 4. A screw rod 7 is screwed to one end of the horizontal section of the L-shaped support rod 6. A fixing block 9 is rotatably connected to the lower end of the screw rod 7 through a bearing. A handle 8 is provided at the upper end of the screw rod 7.

[0025] The valve body is placed on the support plate 14. The electric push rod 12 retracts to drive the lifting plate 11 to descend, and then simultaneously pulls down the four connecting rods 20, causing the four grippers 10 to rotate synchronously towards the center of the support plate 4. The upper ends of the four grippers 10 are used to clamp the valve body, achieving fast and stable fixation of the valve body and preventing it from shaking during processing. By rotating the screw 7 with the handle 8, the fixing block 9 can press the valve body down, further ensuring the fixation effect of the valve body. The debris generated during the processing of the valve body is collected and swept into the annular collection groove 2, and finally discharged from the drain port 3. It is convenient and quick.

[0026] Example 2 is an optimization based on Example 1, specifically:

[0027] A universal ball joint 16 is fixed below the horizontal section of the L-shaped support rod 6. An air nozzle 17 is installed on the universal ball joint 16. One end of the air nozzle 17 is connected to a solenoid valve 22. One end of the solenoid valve 22 is connected to an air pipe 18. One end of the air pipe 18 is connected to an external air compressor. A limit hole 5 is opened on the vertical section of the L-shaped support rod 6, and the air pipe 18 passes through the limit hole 5.

[0028] The angle of the air nozzle 17 can be adjusted by the universal ball head 16 so that the air nozzle 17 is aligned with the valve body. By opening the solenoid valve 22, high-pressure gas is blown from the air nozzle 17 to the valve body to blow away residual debris on the valve body and achieve effective cleaning of the valve body.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A positioning fixture for valve body machining, comprising a U-shaped frame (1), characterized in that, The upper ends of the vertical sections on both sides of the U-shaped frame (1) are fixed with a support plate (4). The upper ends of the horizontal sections of the U-shaped frame (1) of the support plate (4) are fixed with an electric push rod (12). The upper end of the electric push rod (12) extends to the top of the support plate (4) and is connected to a lifting plate (11). The side of the lifting plate (11) is provided with four mounting slots (13) at equal intervals. The upper surface of the support plate (4) is fixed with four connecting blocks (19) at equal intervals. Each of the four connecting blocks (19) is rotatably connected with a gripper (10) by a connecting pin. Each of the four grippers (10) is rotatably connected with a connecting rod (20) on one side. One end of each of the four connecting rods (20) is rotatably connected to the lifting plate (11) at the four mounting slots (13) by a connecting pin. The side of the support plate (4) is fixed with an annular collection trough (2). The annular collection trough (2) is provided with a drain outlet (3). The support platform is fixed on the support plate (4).

2. The positioning fixture for valve body machining according to claim 1, characterized in that, The support platform includes a support rod (15) fixed to the upper surface of the support plate (4), and a support plate (14) is fixed to the upper end of the support rod (15).

3. The positioning fixture for valve body machining according to claim 2, characterized in that, The support rod (15) is provided in four parts, and the four support rods (15) are evenly distributed on the lower end face of the support plate (14).

4. The positioning fixture for valve body machining according to claim 3, characterized in that, The lifting plate (11) is slidably sleeved on the four support rods (15).

5. A positioning fixture for valve body machining according to claim 1, characterized in that, An L-shaped support rod (6) is fixed to the upper side of the tray (4). A screw rod (7) is screwed to one end of the horizontal section of the L-shaped support rod (6). A fixing block (9) is rotatably connected to the lower end of the screw rod (7) through a bearing. A handle (8) is provided at the upper end of the screw rod (7).

6. A positioning fixture for valve body machining according to claim 5, characterized in that, An air nozzle (17) is movably installed below the horizontal section of the L-shaped support rod (6). One end of the air nozzle (17) is connected to a solenoid valve (22), and one end of the solenoid valve (22) is connected to an air pipe (18). One end of the air pipe (18) is connected to an external air compressor.

7. A positioning fixture for valve body machining according to claim 6, characterized in that, The lower end of the horizontal section of the L-shaped support rod (6) is fixed with a universal ball joint (16), and the air nozzle (17) is fixed on one side of the universal ball joint (16).

8. A positioning fixture for valve body machining according to claim 6, characterized in that, A limiting hole (5) is provided on the vertical section of the L-shaped support rod (6), and the air pipe (18) passes through the limiting hole (5).

Images