Clamping tool for pneumatic switch valve production

Abstract

The invention discloses a clamping tool for pneumatic switch valve production, and relates to the technical field of machine tool clamps, the clamping tool comprises a connecting device, an outer cover is arranged on the right side of the connecting device, a centering device is fixedly connected to the inner surface of the outer cover, and clamping devices are arranged at the top and the bottom of the centering device. According to the clamping tool for pneumatic switch valve production, by arranging a stabilizing device, when equipment is used, a rubber ring is installed in an outer cover, a workpiece is inserted, the outer surface of the workpiece and the outer surface of a clamping block are slidably extruded, the clamping block expands outwards, then the workpiece extrudes the rubber ring, and air in the rubber ring is pressed into the clamping block through a communicating pipe; the air pressure in the clamping block is increased, the arc-shaped plate attached to the inner wall of the clamping block is extruded and deformed under the action of the air pressure, the inserting rod extends out of the interior of the clamping block, the bottom end of the inserting rod abuts against the outer surface of the workpiece, the clamping effect of the workpiece is improved, falling is prevented, and the problem that a traditional clamping tool is poor in clamping stability is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool fixtures, and particularly to a clamping tool for the production of pneumatic on-off valves. Background Art

[0002] A pneumatic valve is a valve driven by compressed air. When purchasing a pneumatic valve, only specifying the specifications, categories, and working pressure to meet the procurement requirements can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. The clamping tool for the production of pneumatic on-off valves is mainly used to clamp the on-off valve.

[0003] Generally, the clamping tool clamps and fixes the valve parts on the lathe for turning operations. Traditional clamping tools are mostly special parts, and a single type of valve corresponds to a single type of clamping tool, so the versatility of the equipment is poor. Moreover, repeatedly replacing the clamping tool will affect the clamping stability among the clamping tool, the machine tool, and the workpiece. Repeated disassembly and assembly easily increase wear, and the workpiece is likely to fall off during turning. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a clamping tool for the production of pneumatic on-off valves, which solves the problems of poor versatility and stability of traditional clamping tools.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A clamping tool for the production of pneumatic on-off valves includes a connecting device. A housing is arranged on the right side of the connecting device. A centering device is fixedly connected to the inner surface of the housing. The connecting device connects and fixes the housing to the lathe turntable. When disassembly is required, reverse rotation of the screw can complete the removal. The centering device and the clamping device complete the internal and external centering and clamping of the workpiece, and can meet the clamping of workpieces of different sizes. The clamping device is arranged at the top and bottom of the centering device. The inside of the clamping device uses air pressure clamping and the negative feedback locking of the stabilizing device, which can increase the fixing effect on the outside of the workpiece. The entire device adopts a modular design, which is convenient for maintenance, replacement, disassembly, and assembly. At the same time, the device also has great versatility; The connecting device includes a fixed cylinder. A slide rail is fixedly connected to the lower surface of the fixed cylinder. A limiting rod is arranged on the top of the slide rail. A conical block is slidably connected to the outer surface of the limiting rod. The inner surface of the conical block is threadedly connected to a screw. An active plate is arranged on the top of the screw. The fixed cylinder is inserted into the turntable of the lathe. During the insertion of the fixed cylinder, the slide rail is caught in the card slot of the turntable. After complete insertion, rotate the screw. The limiting rod restricts the left and right rotation of the conical block. Affected by the thread of the screw, the conical block moves left and right along the outer surface of the limiting rod. A spring piece is fixedly connected to the upper surface of the active plate. A pin is arranged on the left side of the spring piece.

[0006] Preferably, the outer surface of the right side of the fixed cylinder is fixedly connected to the outer surface of the left side of the outer cover. Both ends of the limiting rod are fixedly connected to the inner surface of the fixed cylinder. The outer surface of the screw rod is rotatably connected to the inner surface of the fixed cylinder. When the conical block moves to the left, the outer surface of the conical block slidably presses against the lower surface of the movable plate. Under the action of pressure, the movable plate rotates upward, and the bolt extends out of the inside of the fixed cylinder. The bolt catches the inside of the turntable. The outer surface of the conical block is slidably connected to the lower surface of the movable plate.

[0007] Preferably, the outer surface of the movable plate is rotatably connected to the inner surface of the fixed cylinder. The lower surface of the bolt is fixedly connected to the upper surface of the movable plate. Under the combined action of the bolt and the slide rail, the fixed cylinder is stuck inside the turntable. Rotate the screw rod in the reverse direction, the elastic piece pushes up the movable plate, and the bolt is pulled out of the inside of the turntable. The outer surface of the bolt is slidably connected to the inner surface of the fixed cylinder. The outer surface of the elastic piece is in contact with the inner surface of the fixed cylinder.

[0008] Preferably, the clamping device includes an air pipe. The outer surface of the bottom end of the air pipe is fixedly connected to a gas cylinder. A piston is slidably connected to the inner surface of the gas cylinder. The outer surface of the piston is fixedly connected to a buffer spring. A fixing pin is arranged at the bottom of the buffer spring. The fixing pin fixes the gas cylinder outside the outer cover. Insert a columnar workpiece. The outer surface of the workpiece contacts and presses against the stabilizing device. The buffer spring stretches, and the piston moves upward. The stabilizing device is arranged at the bottom of the fixing pin.

[0009] Preferably, the bottom end of the buffer spring is fixedly connected to the inner surface of the gas cylinder. The top end of the fixing pin is fixedly connected to the inner surface of the outer cover. Connect the top end of the air pipe to an external inflation device. The inside of the gas cylinder is injected with gas, and the air pressure increases. The piston presses against the stabilizing device, so that the clamping device can clamp the workpiece more tightly. Close the air pipe to disconnect the air pipe from the external inflation device. The clamping device rotates together with the connecting device. The inner surface of the outer cover is slidably connected to the outer surface of the piston.

[0010] Preferably, the stabilizing device includes a rubber ring. A communicating pipe is fixedly connected to the inner surface of the rubber ring. A clamping block is fixedly connected to the top end of the communicating pipe. The rubber ring is installed inside the outer cover. When the workpiece is inserted, the outer surface of the workpiece slidably presses against the outer surface of the clamping block. The clamping block expands outward. Subsequently, the workpiece presses against the rubber ring. The air inside the rubber ring is pressed into the inside of the clamping block through the communicating pipe. An arc-shaped plate is fixedly connected to the inner surface of the clamping block. A plug rod is fixedly connected to the lower surface of the arc-shaped plate.

[0011] Preferably, the outer surface of the rubber ring is fixedly connected to the lower surface of the clamping block. The rubber ring is located inside the outer cover. When the air pressure inside the clamping block increases, the arc-shaped plate fitted to the inner wall of the clamping block is extruded and deformed under the action of the air pressure, and the insertion rod extends out from the inside of the clamping block. The bottom end of the insertion rod abuts against the outer surface of the workpiece, enhancing the clamping effect of the workpiece and preventing it from falling off. The upper surface of the clamping block is fixedly connected to the bottom end of the piston, and the outer surface of the insertion rod is slidably connected to the inner surface of the clamping block.

[0012] Preferably, the centering device includes a sleeve. A slide rod is fixedly connected to the inner surface of the sleeve. A compression spring is arranged outside the slide rod. The sleeve is spirally inserted into the inside of the outer cover and tightened and fixed. When the machine tool starts, the machine tool turntable drives the outer cover to rotate, and the sleeve rotates at a high speed. Under the action of the counterweight, the inclined plate is subjected to a large centrifugal force and rotates. The outer surface of its left end slides along the outer surface of the right side of the slider. The inclined plate extends out from the inside of the sleeve under the action of the centrifugal force. The right end of the compression spring is fixedly connected to the slider, and the compression spring pushes the slider to slide rightward along the outer surface of the slide rod. The slider abuts against the inclined plate, making the outer surfaces of the inclined plate and the counterweight squeeze and contact the inner cavity of the workpiece. Since the inclined plates expand simultaneously, the inner cavity of the cylindrical workpiece is contacted simultaneously, and the workpiece is automatically centered. A slider is arranged on the right side of the inclined plate, and a counterweight is fixedly connected to the outer surface of the inclined plate.

[0013] Preferably, the outer surface on the left side of the sleeve is threadedly connected to the inner surface of the outer cover, and the left end of the compression spring is fixedly connected to the inner surface of the sleeve. For solid workpieces, before use, the centering device is screwed out from the inside of the outer cover, so that the outside of the workpiece is clamped and fixed by the clamping device, and the workpiece exposed outside the outer cover is machined by turning. The inner surface of the slider is slidably connected to the outer surface of the slide rod, and the outer surface of the inclined plate is rotatably connected to the inner surface of the sleeve. For hollow tubular workpieces, the centering device is installed. When the centering device is affected by the centrifugal force, the inclined plate inclines and abuts against the inner cavity of the workpiece. The inclined plate prevents the workpiece from falling off from the inside of the outer cover and simultaneously realizes the automatic centering of the workpiece. The outside of the workpiece is fixedly clamped by the clamping device, and the flexibility and versatility of the equipment are relatively large. The outer surface on the left side of the inclined plate is in contact with the outer surface on the right side of the slider.

[0014] The present invention provides a clamping tool for the production of pneumatic on-off valves. It has the following beneficial effects: (1). For the clamping tooling used in the production of the pneumatic switch valve, by setting up the connecting device, when the equipment is in use, the fixed cylinder is inserted into the turntable of the lathe. During the insertion process of the fixed cylinder, the slide rail is stuck into the slot of the turntable. After complete insertion, rotate the screw rod. The limiting rod restricts the left - right rotation of the conical block. Affected by the thread of the screw rod, the conical block moves left - right along the outer surface of the limiting rod. When the conical block moves left, the outer surface of the conical block slides and presses the lower surface of the movable plate. Under the action of the pressure, the movable plate rotates upward, and the pin extends from the inside of the fixed cylinder and catches the inside of the turntable. Under the combined action of the pin and the slide rail, the fixed cylinder is locked inside the turntable. Rotate the screw rod in the reverse direction, the elastic piece pushes up the movable plate and the pin is pulled out from the inside of the turntable, solving the problem of inconvenient installation of the traditional clamping tooling.

[0015] (2). For the clamping tooling used in the production of the pneumatic switch valve, by setting up the clamping device, when the equipment is in use, the fixed pin fixes the gas cylinder outside the outer cover. Insert the cylindrical workpiece, the outer surface of the workpiece contacts and presses against the stabilizing device, the buffer spring stretches, the piston moves upward, connect the top end of the air pipe with the external inflation equipment, the inside of the gas cylinder is injected with gas, the air pressure increases, the piston presses against the stabilizing device, so that the clamping device can clamp the workpiece more tightly. Close the air pipe to disconnect the air pipe from the external inflation device, and the clamping device rotates together with the connecting device, solving the problems of limited clamping range and easy loosening of the traditional clamping tooling.

[0016] (3). For the clamping tooling used in the production of the pneumatic switch valve, by setting up the stabilizing device, when the equipment is in use, the rubber ring is installed inside the outer cover. Insert the workpiece, the outer surface of the workpiece slides and presses against the outer surface of the clamping block, the clamping block expands outwards, then the workpiece presses against the rubber ring, the air inside the rubber ring is pressed into the inside of the clamping block through the connecting pipe, the air pressure inside the clamping block increases, the arc - shaped plate attached to the inner wall of the clamping block is extruded and deformed under the action of the air pressure, the insertion rod extends from the inside of the clamping block, and the bottom end of the insertion rod presses against the outer surface of the workpiece, increasing the clamping effect of the workpiece and preventing it from falling off, solving the problem of poor clamping stability of the traditional clamping tooling.

[0017] (4). For the clamping tooling used in the production of the pneumatic switch valve, by setting up the centering device, when the equipment is in use, the sleeve is spirally inserted into the inside of the outer cover and tightened and fixed. Start the machine tool, the turntable of the machine tool drives the outer cover to rotate, the sleeve rotates at a high speed. Under the action of the counterweight, the inclined plate receives a large centrifugal force and rotates. The outer surface of its left end slides along the outer surface of the right side of the slider. The inclined plate extends from the inside of the sleeve under the action of the centrifugal force. The compression spring pushes the slider to slide rightward along the outer surface of the sliding rod. The slider presses against the inclined plate, so that the outer surfaces of the inclined plate and the counterweight are in contact and pressed against the inner cavity of the workpiece. Since the inclined plate expands simultaneously, the inner cavity of the cylindrical workpiece is contacted simultaneously, and the workpiece is automatically centered, solving the problem that the traditional clamping tooling is prone to clamping skew and affecting the turning effect.

[0018] (5) The clamping tooling for the production of the pneumatic switch valve, by setting the centering device and the clamping device. When the equipment is in use, for solid workpieces, before use, the centering device is screwed out from the inside of the outer cover, so that the outside of the workpiece is clamped and fixed by the clamping device, and the workpiece exposed outside the outer cover is machined by turning. For hollow tubular workpieces, the centering device is installed. When the centering device is affected by centrifugal force, the inclined plate inclines to abut against the inner cavity of the workpiece. The inclined plate prevents the workpiece from falling off from the inside of the outer cover, and at the same time realizes the automatic centering of the workpiece. The outside of the workpiece is fixedly clamped by the clamping device. The flexibility and versatility of the equipment are relatively large, solving the problem of poor versatility of the traditional clamping tooling.

[0019] (6) The clamping tooling for the production of the pneumatic switch valve, by setting the connecting device, the outer cover, the centering device and the clamping device. When the equipment is in use, the connecting device connects and fixes the outer cover to the machine tool turntable. When disassembly is required, unscrew the screw rod in the reverse direction to complete the disassembly. The centering device and the clamping device complete the internal and external centering and clamping of the workpiece, and can meet the clamping of workpieces of different sizes. The inside of the clamping device adopts pneumatic clamping and the negative feedback locking of the stabilizing device, which can increase the fixing effect on the outside of the workpiece. The whole equipment adopts a modular design, which is convenient for overhaul, replacement, disassembly and assembly. At the same time, the equipment also has relatively large versatility, solving the problems of cumbersome structure and poor versatility of the traditional clamping tooling. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the whole invention; Figure 2 is the sectional view of the invention; Figure 3 is the structural schematic diagram of the connecting device of the invention; Figure 4 is the structural schematic diagram of the clamping device of the invention; Figure 5 is the structural schematic diagram of the stabilizing device of the invention; Figure 6 is the structural schematic diagram of the centering device of the invention.

[0021] In the figure: 1. Connecting device; 2. Outer cover; 3. Centering device; 4. Clamping device; 10. Fixed cylinder; 11. Slide rail; 12. Limit rod; 13. Tapered block; 14. Screw rod; 15. Movable plate; 16. Elastic sheet; 17. Plug pin; 20. Air pipe; 21. Gas cylinder; 22. Piston; 23. Buffer spring; 24. Fixed pin; 25. Stabilizing device; 30. Rubber ring; 31. Connecting pipe; 32. Clamping block; 33. Arc plate; 34. Inserting rod; 40. Sleeve; 41. Slide rod; 42. Compression spring; 43. Slide block; 44. Inclined plate; 45. Counterweight block. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0023] Please refer to Figures 1-6 , the present invention provides a technical solution: a clamping tooling for the production of pneumatic on-off valves, including a connecting device 1. A housing 2 is arranged on the right side of the connecting device 1. A centering device 3 is fixedly connected to the inner surface of the housing 2. Clamping devices 4 are arranged at the top and bottom of the centering device 3; The connecting device 1 includes a fixed cylinder 10. A slide rail 11 is fixedly connected to the lower surface of the fixed cylinder 10. A limiting rod 12 is arranged on the top of the slide rail 11. A tapered block 13 is slidably connected to the outer surface of the limiting rod 12. A screw rod 14 is threadedly connected to the inner surface of the tapered block 13. An activity plate 15 is arranged on the top of the screw rod 14. A spring piece 16 is fixedly connected to the upper surface of the activity plate 15. A plug pin 17 is arranged on the left side of the spring piece 16.

[0024] The outer surface on the right side of the fixed cylinder 10 is fixedly connected to the outer surface on the left side of the housing 2. Both ends of the limiting rod 12 are fixedly connected to the inner surface of the fixed cylinder 10. The outer surface of the screw rod 14 is rotatably connected to the inner surface of the fixed cylinder 10. The outer surface of the tapered block 13 is slidably connected to the lower surface of the activity plate 15. The outer surface of the activity plate 15 is rotatably connected to the inner surface of the fixed cylinder 10. The lower surface of the plug pin 17 is fixedly connected to the upper surface of the activity plate 15. The outer surface of the plug pin 17 is slidably connected to the inner surface of the fixed cylinder 10. The outer surface of the spring piece 16 is in contact with the inner surface of the fixed cylinder 10.

[0025] During use, the fixed cylinder 10 is inserted into the turntable of the lathe. During the insertion process of the fixed cylinder 10, the slide rail 11 is clamped into the card slot of the turntable. After complete insertion, the screw rod 14 is rotated. The limiting rod 12 restricts the left and right rotation of the tapered block 13. Affected by the thread of the screw rod 14, the tapered block 13 moves left and right along the outer surface of the limiting rod 12. When the tapered block 13 moves to the left, the outer surface of the tapered block 13 slidably presses the lower surface of the activity plate 15. The activity plate 15 rotates upward under the pressure. The plug pin 17 extends out of the inside of the fixed cylinder 10. The plug pin 17 catches the inside of the turntable. Under the combined action of the plug pin 17 and the slide rail 11, the fixed cylinder 10 is stuck inside the turntable. Rotate the screw rod 14 in the reverse direction, and the spring piece 16 pushes up the activity plate 15 and the plug pin 17 is pulled out of the inside of the turntable.

[0026] The connecting device 1 fixedly connects the outer cover 2 to the machine tool turntable. When disassembly is required, simply unscrew the screw rod 14 in the reverse direction to complete the removal. The centering device 3 and the clamping device 4 complete the internal and external centering and clamping of the workpiece, and can meet the clamping of workpieces of different sizes. The inside of the clamping device 4 adopts pneumatic clamping and the negative feedback locking of the stabilizing device 25, which can enhance the fixing effect on the outside of the workpiece. The entire equipment adopts a modular design, which is convenient for maintenance, replacement, disassembly and assembly. At the same time, the equipment also has great versatility. Embodiment 2

[0027] Please refer to Figures 1-6 , the present invention provides a technical solution: on the basis of Embodiment 1, the clamping device 4 includes an air pipe 20. The outer surface of the bottom end of the air pipe 20 is fixedly connected with an air cylinder 21. A piston 22 is slidably connected to the inner surface of the air cylinder 21. A buffer spring 23 is fixedly connected to the outer surface of the piston 22. A fixing pin 24 is arranged at the bottom of the buffer spring 23, and a stabilizing device 25 is arranged at the bottom of the fixing pin 24. The bottom end of the buffer spring 23 is fixedly connected with the inner surface of the air cylinder 21, the top end of the fixing pin 24 is fixedly connected with the inner surface of the outer cover 2, and the inner surface of the outer cover 2 is slidably connected with the outer surface of the piston 22.

[0028] The stabilizing device 25 includes a rubber ring 30. A communicating pipe 31 is fixedly connected to the inner surface of the rubber ring 30. A clamping block 32 is fixedly connected to the top end of the communicating pipe 31. An arc-shaped plate 33 is fixedly connected to the inner surface of the clamping block 32. A plug rod 34 is fixedly connected to the lower surface of the arc-shaped plate 33. The outer surface of the rubber ring 30 is fixedly connected with the lower surface of the clamping block 32. The rubber ring 30 is located inside the outer cover 2. The upper surface of the clamping block 32 is fixedly connected with the bottom end of the piston 22, and the outer surface of the plug rod 34 is slidably connected with the inner surface of the clamping block 32.

[0029] The centering device 3 includes a sleeve 40. A sliding rod 41 is fixedly connected to the inner surface of the sleeve 40. A compression spring 42 is arranged outside the sliding rod 41. The right end of the compression spring 42 is fixedly connected with a sliding block 43. An inclined plate 44 is arranged on the right side of the sliding block 43. A counterweight 45 is fixedly connected to the outer surface of the inclined plate 44. The outer surface of the left side of the sleeve 40 is threadedly connected with the inner surface of the outer cover 2. The inner surface of the sleeve 40 is fixedly connected with the left end of the compression spring 42. The inner surface of the sliding block 43 is slidably connected with the outer surface of the sliding rod 41. The outer surface of the inclined plate 44 is rotatably connected with the inner surface of the sleeve 40. The outer surface of the left side of the inclined plate 44 is in contact with the outer surface of the right side of the sliding block 43.

[0030] During use, the fixing pin 24 fixes the gas cylinder 21 outside the outer cover 2. Insert the cylindrical workpiece, and the outer surface of the workpiece contacts and presses against the stabilizing device 25. The buffer spring 23 stretches, and the piston 22 moves upward. Connect the top end of the air pipe 20 to an external inflation device, and the inside of the gas cylinder 21 is inflated. The air pressure increases, and the piston 22 presses against the stabilizing device 25, enabling the clamping device 4 to clamp the workpiece more tightly. Close the air pipe 20 to disconnect the air pipe 20 from the external inflation device, and the clamping device 4 rotates together with the connecting device 1.

[0031] The rubber ring 30 is installed inside the outer cover 2. Insert the workpiece, and the outer surface of the workpiece slides and presses against the outer surface of the clamping block 32. The clamping block 32 expands outward. Subsequently, the workpiece presses against the rubber ring 30, and the air inside the rubber ring 30 is pressed into the inside of the clamping block 32 through the connecting pipe 31. The air pressure inside the clamping block 32 increases, and the arc-shaped plate 33 attached to the inner wall of the clamping block 32 is deformed by the air pressure, and the insertion rod 34 extends out of the inside of the clamping block 32. The bottom end of the insertion rod 34 presses against the outer surface of the workpiece, enhancing the clamping effect of the workpiece and preventing it from falling off.

[0032] The sleeve 40 is screwed into the inside of the outer cover 2 and tightened. When the machine tool starts, the machine tool turntable drives the outer cover 2 to rotate, and the sleeve 40 rotates at high speed. Under the action of the counterweight 45, the inclined plate 44 is subjected to a large centrifugal force, and the inclined plate 44 rotates. The outer surface of its left end slides along the outer surface of the right side of the slider 43. The inclined plate 44 extends out of the inside of the sleeve 40 under the action of the centrifugal force. The compression spring 42 pushes the slider 43 to slide to the right along the outer surface of the slide bar 41. The slider 43 presses against the inclined plate 44, enabling the outer surfaces of the inclined plate 44 and the counterweight 45 to press against and contact the inner cavity of the workpiece. Since the inclined plate 44 expands simultaneously, the inner cavity of the cylindrical workpiece is contacted simultaneously, and the workpiece is automatically centered.

[0033] For solid workpieces, before use, unscrew the centering device 3 from the inside of the outer cover 2 to clamp and fix the outside of the workpiece with the clamping device 4, and the workpiece exposed outside the outer cover 2 is machined by turning. For hollow tubular workpieces, install the centering device 3. When the centering device 3 is affected by the centrifugal force, the inclined plate 44 inclines and presses against the inner cavity of the workpiece. The inclined plate 44 prevents the workpiece from falling off from the inside of the outer cover 2 and simultaneously realizes the automatic centering of the workpiece. The outside of the workpiece is fixedly clamped by the clamping device 4, and the flexibility and versatility of the equipment are relatively large.

[0034] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping tool for producing a pneumatic switch valve, comprising a connecting device (1), characterized in that: An outer cover (2) is provided on the right side of the connecting device (1); a centering device (3) is fixedly connected to the inner surface of the outer cover (2); and clamping devices (4) are provided at the top and bottom of the centering device (3); The connecting device (1) comprises a fixed cylinder (10), the lower surface of the fixed cylinder (10) is fixedly connected to a slide rail (11), the top of the slide rail (11) is provided with a limit rod (12), the outer surface of the limit rod (12) is slidably connected to a conical block (13), the inner surface of the conical block (13) is threadedly connected to a screw rod (14), the top of the screw rod (14) is provided with a movable plate (15), the upper surface of the movable plate (15) is fixedly connected to a spring sheet (16), and a latch (17) is provided on the left side of the spring sheet (16).

2. The clamping tool for producing a pneumatic switch valve according to claim 1, characterized in that: The outer surface of the right side of the fixed cylinder (10) is fixedly connected to the outer surface of the left side of the outer cover (2), the two ends of the limit rod (12) are fixedly connected to the inner surface of the fixed cylinder (10), the outer surface of the screw rod (14) is rotatably connected to the inner surface of the fixed cylinder (10), and the outer surface of the conical block (13) is slidably connected to the lower surface of the movable plate (15).

3. The clamping tool for producing a pneumatic switch valve according to claim 1, characterized in that: The outer surface of the movable plate (15) is rotatably connected to the inner surface of the fixed cylinder (10), the lower surface of the latch (17) is fixedly connected to the upper surface of the movable plate (15), the outer surface of the latch (17) is slidably connected to the inner surface of the fixed cylinder (10), and the outer surface of the spring (16) is in contact with the inner surface of the fixed cylinder (10).

4. The clamping tool for producing a pneumatic switch valve according to claim 1, characterized in that: The clamping device (4) comprises an air pipe (20), the outer surface of the bottom end of the air pipe (20) is fixedly connected to a gas cylinder (21), the inner surface of the gas cylinder (21) is slidably connected to a piston (22), the outer surface of the piston (22) is fixedly connected to a buffer spring (23), a fixing pin (24) is provided at the bottom of the buffer spring (23), and a stabilizing device (25) is provided at the bottom of the fixing pin (24).

5. The clamping tool for producing a pneumatic switch valve according to claim 4, characterized in that: The bottom end of the buffer spring (23) is fixedly connected to the inner surface of the gas cylinder (21), the top end of the fixing pin (24) is fixedly connected to the inner surface of the outer cover (2), and the inner surface of the outer cover (2) is slidably connected to the outer surface of the piston (22).

6. The clamping tool for producing a pneumatic switch valve according to claim 4, characterized in that: The stabilizing device (25) comprises a rubber ring (30), the inner surface of the rubber ring (30) being fixedly connected to a connecting pipe (31), the top end of the connecting pipe (31) being fixedly connected to a clamping block (32), the inner surface of the clamping block (32) being fixedly connected to an arc-shaped plate (33), and the lower surface of the arc-shaped plate (33) being fixedly connected to an inserting rod (34).

7. The clamping tool for producing a pneumatic switch valve according to claim 6, characterized in that: The outer surface of the rubber ring (30) is fixedly connected to the lower surface of the block (32); the rubber ring (30) is located inside the outer cover (2); the upper surface of the block (32) is fixedly connected to the bottom end of the piston (22); and the outer surface of the insertion rod (34) is slidably connected to the inner surface of the block (32).

8. The clamping tool for producing a pneumatic switch valve according to claim 1, characterized in that: The centering device (3) comprises a sleeve (40), the inner surface of the sleeve (40) is fixedly connected to a slide rod (41), a compression spring (42) is arranged outside the slide rod (41), the right end of the compression spring (42) is fixedly connected to a slide block (43), an inclined plate (44) is arranged on the right side of the slide block (43), and a counterweight (45) is fixedly connected to the outer surface of the inclined plate (44).

9. The clamping tool for producing a pneumatic switch valve according to claim 8, characterized in that: The outer surface of the left side of the sleeve (40) is threadedly connected to the inner surface of the outer cover (2), the inner surface of the sleeve (40) is fixedly connected to the left end of the compression spring (42), the inner surface of the slider (43) is slidably connected to the outer surface of the slide rod (41), the outer surface of the inclined plate (44) is rotatably connected to the inner surface of the sleeve (40), and the outer surface of the left side of the inclined plate (44) is in contact with the outer surface of the right side of the slider (43).

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