A pneumatic component for precise multi-tasking positioning

Abstract

The present invention discloses a pneumatic assembly for precise multi-positioning, belonging to the field of multi-station clamps. It comprises a lower support plate, the upper surface of which is symmetrically fixedly connected with a foot, the upper surfaces of the two foots are fixedly connected with a lower base plate, the upper surface of the lower base plate is disassembled and installed with a clamping plate by bolts, the upper surface of the clamping plate is symmetrically fixedly connected with fixed clamping blocks from left to right in sequence, and the lower surface of the lower base plate is fixedly connected with a plurality of thin cylinders; when the device is used, by inflating air into the inside of the thin cylinder, the OK clamp body controls the two movable clamping blocks in the front and rear to move toward the two fixed clamping blocks opposite to each other, thereby completing the clamping of the workpiece by the movable clamping blocks and the fixed clamping blocks opposite to each other, and extracting the gas inside the thin cylinder to control the movable clamping blocks to move away from the fixed clamping blocks to release the clamping of the workpiece.

Description

Technical Field

[0001] The invention relates to the field of multi-station clamps, and in particular to a precise multi-positioning pneumatic component. Background Art

[0002] The CNC machining center fixes the workpiece by installing a fixture on the workbench to clamp and fix it. Common fixtures include vises, indexing heads, magnetic platforms, hydraulic fixtures, pneumatic fixtures, etc. These fixtures often only have a single clamping station and cannot meet the needs of mass production, or have multiple stations with unified control and cannot be clamped individually;

[0003] Patent: CN221755853U belongs to the technical field of multi-station fixtures for machine tools, and specifically relates to a multi-station CNC fixture, including a carrier plate, the carrier plate is fixed with several groups of fixed clamping blocks, and each group of two fixed clamping blocks is spaced apart with several slots, and two adjacent slots are provided with handle bolts that are detachably connected to the carrier plate, and the carrier plate is located between two adjacent slots and is fixed with several inner gear rings through handle bolts, and the inner gear rings are multi-tooth structures on the inner side and the teeth have curvatures, ratchets are inserted inside the inner gear rings, and the ratchets are all multi-angle structures and the angles are engaged with corresponding teeth, and two arc arms are fixed in the middle of the upper surface of the ratchet, and the two adjacent arc arms are fixedly connected at one end with opposite opening directions and close to each other, and the position of the slot close to the other end of the arc arm is slidably installed with a movable clamping block. The device can horizontally support the PCB boards of two stations with a single rotation, with a short stroke and less time consumption, which is convenient for the multi-station fixture to quickly clamp the PCB board;

[0004] The above technology is not convenient for controlling the number of clamps according to the clamping needs, and is not convenient for automatically controlling the clamping of workpieces according to needs or manually controlling the clamping of workpieces. Improvements are needed, and for this purpose, we propose a pneumatic component for precise multi-tasking positioning. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a device that is convenient for controlling the number of clamping according to clamping needs; another purpose of the present invention is to provide a device that is convenient for automatically controlling the clamping of workpieces according to needs or manually controlling the clamping of workpieces.

[0006] Technical solution: A pneumatic assembly for precise multi-positioning, comprising a lower support plate, the upper surface of which is symmetrically fixedly connected with feet, the upper surfaces of two feet are fixedly connected with a lower base plate, the upper surface of which is disassembled and installed with a clamping plate by bolts, the upper surface of which is symmetrically fixedly connected with fixed clamping blocks from left to right, the lower surface of which is fixedly connected with a plurality of thin cylinders, the top of the output end of the thin cylinder extends between two fixed clamping blocks opposite to each other, and is fixedly installed with an OK clamp body, both sides of which are fixedly connected with OK clamp blocks, and the front and rear surfaces of the OK clamp body are fixedly installed with movable clamping blocks;

[0007] An adjusting box is fixedly connected to the lower surface of the lower support plate, an adjusting cylinder is rotatably connected to the interior of the adjusting box via a rotating shaft, a docking tube is fixedly connected to the right end of the adjusting cylinder, a rotating rod is fixedly connected to the left end of the adjusting cylinder, a plurality of air nozzles are fixedly connected to the top of the adjusting box, a triangular cavity is provided inside the adjusting cylinder, and a through-type docking hole one, two through-type docking holes two and three through-type docking holes three are provided on the outer side wall of the triangular cavity.

[0008] Furthermore, the upper surface of the lower support plate is located on the right side of the regulating box and is fixedly connected to a pressure relief box, an regulating chamber is opened in the front of the interior of the pressure relief box, a pressure relief cylinder is rotatably connected to the interior of the regulating chamber via a rotating shaft, a through-type docking hole four and two through-type docking holes five are opened on the outer wall of the pressure relief cylinder, a pressure relief chamber is symmetrically opened at the rear of the interior of the pressure relief box, a connecting hole is opened between the pressure relief chamber and the regulating chamber, and the right center of the pressure relief cylinder is located on the right side of the pressure relief box and is rotatably connected to an intake pipe via a rotating shaft.

[0009] Furthermore, the right end of the butt joint pipe penetrates into the interior of the regulating cavity and is fixedly connected with the left end of the regulating cavity.

[0010] Furthermore, a through-type pressure relief hole is opened on the inner rear surface of the pressure relief chamber, a pressure relief piston plate is slidably connected to the interior of the pressure relief chamber, and a plurality of springs are fixedly connected between the pressure relief piston plate and the pressure relief chamber.

[0011] Furthermore, a three-way regulating valve is fixed to the right end of the air intake pipe, and the upper surface and the right side of the three-way regulating valve are fixedly connected to branch pipe 1 and branch pipe 2 respectively.

[0012] Furthermore, an inflation box is fixedly connected to the right side of the foot located on the right side of the upper surface of the lower support plate, the front surface of the inflation box is fixedly connected to the rear end of the branch pipe 2, the inflation box is slidably connected to an extrusion piston plate, a plurality of springs 2 are fixedly connected between the extrusion piston plate and the inflation box, the rear surface of the extrusion piston plate is rotatably connected to a push rod via a rotating shaft, the rear end of the push rod penetrates to the rear of the inflation box and is fixedly connected to a knob 1, the right side of the inflation box is fixedly connected to an inflation pump, and the output end of the inflation pump is fixedly connected to the rear end of the branch pipe 1.

[0013] Furthermore, an L-shaped baffle is fixedly connected to the lower part of the rear surface of the inflation box, and an abutment block is fixedly connected to the rear of the outer side wall of the push rod.

[0014] Furthermore, the left end of the rotating rod is fixedly connected to a rotating disk 1, and an axle column is fixedly connected to the upper right side of the rotating disk 1, the left end of the axle column is fixedly connected to a rotating disk 2, and the right side of the rotating disk 2 is fixedly connected to a contraction box, and a moving plate is slidably connected to the inside of the contraction box, and a plurality of springs are fixedly connected between the moving plate and the contraction box, and a hand-held rod is fixedly connected to the left side of the moving plate, and the left end of the hand-held rod passes through the left side of the contraction box and is fixedly connected to a knob 2, the outer wall of the axle column is rotatably connected to a traction rod through a rotating shaft, and the rear end of the traction rod is rotatably connected to a rotating connecting piece through a rotating shaft, and the rear end of the rotating connecting piece is fixedly connected to an exhaust piston, and the outer wall of the exhaust piston is slidably connected to a limit box, the bottom of the limit box is fixedly connected to the upper surface of the lower support plate, and a through-type ventilation hole is opened on the left side of the limit box.

[0015] Furthermore, a fixing plate is fixedly connected to the left side of the limit box behind the ventilation hole, a guide column is slidably connected inside the fixing plate, a wedge-shaped sealing block is fixedly connected to the front end of the guide column, a spring four is fixedly connected between the wedge-shaped sealing block and the fixing plate, a limiting plate is symmetrically fixedly connected to the front left side of the limit box, and the outer wall of the hand-held rod is located between the two limit plates and is rotatably connected to a contact plate via a rotating shaft.

[0016] Beneficial effects:

[0017] When the device is used, by inflating air into the thin cylinder, the OK clamp body controls the two movable clamping blocks at the front and rear to move toward the two fixed clamping blocks opposite to each other, so that the workpiece is clamped by the movable clamping blocks and the fixed clamping blocks opposite to each other. The air inside the thin cylinder is extracted to control the movable clamping blocks to move away from the fixed clamping blocks to release the clamping of the workpiece.

[0018] The regulating box can be connected to the three thin cylinders through external hoses through the three gas nozzles provided. By rotating the regulating cylinder, the first docking hole, the second docking hole or the third docking hole can be connected to the gas nozzle, so that the gas entering the regulating cylinder can control the amount of gas entering the thin cylinder, thereby controlling the amount of workpieces clamped by the movable clamp and the fixed clamp;

[0019] Under normal conditions, under the pull of spring three, the abutment sheet will abut against the front surface of the wedge-shaped sealing block, so that the wedge-shaped sealing block blocks the ventilation hole, making it impossible for the limit box to exhaust and pump air. At this time, the rotation of the adjustment cylinder can be limited to ensure the stability of the air nozzle after it is connected to the required number. When adjustment is required, first hold the knob two and pull it to the left, driving the abutment sheet to move to the right together. At this time, under the push of spring four, the wedge-shaped sealing block is away from the ventilation hole, so that the limit box can pump and exhaust air. At this time, the rotation of the adjustment cylinder can be controlled by turning the knob two to control the number of air nozzles connected;

[0020] When the regulating cylinder rotates, it drives the pressure relief cylinder to rotate together, thereby controlling a docking hole four to dock and connect with a connecting hole. At this time, two air nozzles are connected to the regulating cylinder, and when air is ventilated to the inside of the pressure relief cylinder, excess gas will be exhausted to the inside of a pressure relief chamber, or two docking holes five are docked and connected with the connecting holes. At this time, one air nozzle is connected to the regulating cylinder, and when air is ventilated to the inside of the pressure relief cylinder, excess gas will be exhausted to the inside of two pressure relief chambers. When the three air nozzles are all connected to the regulating cylinder, the connecting hole is blocked and sealed by the pressure relief cylinder, and does not participate in the inflation at this time. Therefore, under the condition of a certain inflation amount, different numbers of thin cylinders are controlled to start, and the pressure relief effect can be achieved when controlling the clamping of the workpiece;

[0021] By controlling the three-way regulating valve, the air intake pipe can be controlled to connect with branch pipe one or branch pipe two. At this time, the air pump or the air box can be controlled to inflate or exhaust air into the thin cylinder to achieve the effect of automatic or manual control. During manual control, the piston plate can be pushed and squeezed by holding the knob one to achieve inflation. After pushing, the knob one can be turned so that the abutment block abuts against the inner side of the L-shaped baffle to limit the position, so that it is not easy to loosen during inflation clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection structure of the adjustment box, the first turntable, the second turntable and the limit box of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the regulating cylinder of the present invention;

[0025] Figure 4 It is a side structural schematic diagram of the limit box of the present invention;

[0026] Figure 5 It is a schematic cross-sectional structural diagram of the shrink box of the present invention;

[0027] Figure 6 is a schematic side structural view of a vertical cross section of an inflatable box of the present invention;

[0028] Figure 7 It is a schematic diagram of the top view of the connection structure of the pressure relief chamber and the pressure relief cylinder of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the pressure relief cylinder of the present invention when viewed from above.

[0030] In the figure: 1. lower support plate; 2. foot pad; 3. lower bottom plate; 4. clamping plate; 5. fixed clamp block; 6. thin cylinder; 7. OK clamp body; 8. OK clamp block; 9. movable clamp block; 10. adjustment box; 11. adjustment cylinder; 12. docking tube; 13. rotating rod; 14. air nozzle; 15. triangular cavity; 16. docking hole 1; 17. docking hole 2; 18. docking hole 3; 19. pressure relief box; 20. adjustment cavity; 21. pressure relief cylinder; 22. docking hole 4; 23. docking hole 5; 24. pressure relief cavity; 25. connecting hole; 26. air inlet pipe; 27. pressure relief hole; 28. pressure relief piston plate; 29. ​​spring 1; 30. three-way Regulating valve; 31. Branch pipe one; 32. Branch pipe two; 33. Inflating box; 34. Extrusion piston plate; 35. Spring two; 36. Push rod; 37. Knob one; 38. Inflating pump; 39. L-shaped baffle; 40. Abutment block; 41. Turntable one; 42. Shaft column; 43. Turntable two; 44. Contraction box; 45. Moving plate; 46. Spring three; 47. Hand-held rod; 48. Knob two; 49. Towing rod; 50. Rotating connecting plate; 51. Exhaust piston; 52. Limit box; 53. Ventilation hole; 54. Fixed plate; 55. Guide column; 56. Wedge-shaped sealing block; 57. Spring four; 58. Limit plate; 59. Abutment plate. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Embodiment 1:

[0033] like Figure 1As shown, a pneumatic assembly for precise multi-positioning is provided, including a lower support plate 1, the upper surface of the lower support plate 1 is symmetrically fixedly connected with a pad 2, the upper surfaces of the two pads 2 are fixedly connected with a lower base plate 3, the upper surface of the lower base plate 3 is disassembled and installed with a clamping plate 4 by bolts, the upper surface of the clamping plate 4 is symmetrically fixedly connected with fixed clamping blocks 5 from left to right, the lower surface of the lower base plate 3 is fixedly connected with a plurality of thin cylinders 6, the top end of the output end of the thin cylinder 6 extends between two fixed clamping blocks 5 opposite to each other, and is fixedly installed with an OK clamp body 7, both sides of the OK clamp body 7 are fixedly connected with OK clamp stoppers 8, and the front and rear surfaces of the OK clamp body 7 are fixedly installed with movable clamping blocks 9;

[0034] When the device is used, the thin cylinder 6 is inflated to make the OK clamp body 7 control the two movable clamping blocks 9 at the front and rear to move toward the two fixed clamping blocks 5 opposite to each other, so that the workpiece is clamped by the movable clamping blocks 9 and the fixed clamping blocks 5 opposite to each other. The air inside the thin cylinder 6 is extracted to control the movable clamping blocks 9 to move away from the fixed clamping blocks 5 to release the clamping of the workpiece.

[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the lower surface of the lower support plate 1 is fixedly connected with an adjustment box 10, the inside of the adjustment box 10 is rotatably connected with an adjustment cylinder 11 through a rotating shaft, the right end of the adjustment cylinder 11 is fixedly connected with a docking tube 12, the left end of the adjustment cylinder 11 is fixedly connected with a rotating rod 13, the top of the adjustment box 10 is fixedly connected with a plurality of air nozzles 14, the inside of the adjustment cylinder 11 is provided with a triangular cavity 15, the outer side wall of the triangular cavity 15 is provided with a through-type docking hole 16, two through-type docking holes 2 17 and three through-type docking holes 3 18;

[0036] The regulating box 10 can be connected to the three thin cylinders 6 through external hoses through the three gas nozzles 14, and the regulating cylinder 11 can be rotated to make the docking hole 16, the docking hole 2 17 or the docking hole 3 18 dock with the gas nozzle 14, so that the gas entering the regulating cylinder 11 can control the amount of gas entering the thin cylinder 6, thereby controlling the amount of workpieces clamped by the movable clamp 9 and the fixed clamp 5;

[0037] The left end of the rotating rod 13 is fixedly connected to a rotating disk 1 41, a shaft column 42 is fixedly connected to the upper right side of the rotating disk 1 41, the left end of the shaft column 42 is fixedly connected to a rotating disk 2 43, a shrink box 44 is fixedly connected to the right side of the rotating disk 2 43, a moving piece 45 is slidably connected inside the shrink box 44, a plurality of springs 3 46 are fixedly connected between the moving piece 45 and the shrink box 44, a hand-held rod 47 is fixedly connected to the left side of the moving piece 45, the left end of the hand-held rod 47 passes through the left side of the shrink box 44, and is fixedly connected to a knob 2 48;

[0038] The outer wall of the shaft column 42 is rotatably connected to a traction rod 49 through a rotating shaft, and the rear end of the traction rod 49 is rotatably connected to a rotating connecting piece 50 through a rotating shaft, and the rear end of the rotating connecting piece 50 is fixedly connected to an exhaust piston 51, and the outer wall of the exhaust piston 51 is slidably connected to a limit box 52, and the bottom of the limit box 52 is fixedly connected to the upper surface of the lower support plate 1, and a through-type ventilation hole 53 is opened on the left side of the limit box 52;

[0039] The second hand-held knob 48 is rotated to control the rotation of the regulating cylinder 11, thereby controlling the number of connections between the air nozzle 14 and the inside of the regulating cylinder 11. At the same time, when the second knob 48 is rotated, the exhaust piston 51 needs to be pulled back and forth along the inside of the limit box 52 by the traction rod 49. At this time, the limit box 52 needs to be repeatedly inflated and exhausted through the air exchange hole 53;

[0040] A fixing plate 54 is fixedly connected to the left side of the limit box 52 behind the ventilation hole 53, a guide column 55 is slidably connected inside the fixing plate 54, a wedge-shaped sealing block 56 is fixedly connected to the front end of the guide column 55, a spring 57 is fixedly connected between the wedge-shaped sealing block 56 and the fixing plate 54, a limiting plate 58 is symmetrically fixedly connected to the left front of the limit box 52, and an outer wall of the hand-held rod 47 is located between the two limiting plates 58 and is rotatably connected to an abutting plate 59 via a rotating shaft;

[0041] Under normal conditions, under the pull of spring three 46, the abutment piece 59 will abut against the front surface of the wedge-shaped sealing block 56, so that the wedge-shaped sealing block 56 blocks the ventilation hole 53, so that the limit box 52 cannot exhaust and pump air. At this time, the rotation of the adjustment cylinder 11 can be limited to ensure the stability of the air nozzle 14 after it is connected to the required number. When adjustment is needed, first hold the knob two 48 and pull it to the left, driving the abutment piece 59 to move to the right together. At this time, under the push of spring four 57, the wedge-shaped sealing block 56 is away from the ventilation hole 53, so that the limit box 52 can pump air and exhaust. At this time, the rotation of the adjustment cylinder 11 can be controlled by rotating the knob two 48 to control the number of air nozzles 14 connected.

[0042] like Figure 6 , Figure 7 and Figure 8 As shown, the upper surface of the lower support plate 1 is located on the right side of the regulating box 10 and is fixedly connected with a pressure relief box 19, an adjusting chamber 20 is provided in the front of the pressure relief box 19, a pressure relief cylinder 21 is rotatably connected to the inside of the regulating chamber 20 through a rotating shaft, a through-type docking hole 22 and two through-type docking holes 23 are provided on the outer wall of the pressure relief cylinder 21, a pressure relief chamber 24 is symmetrically provided at the rear of the pressure relief box 19, a connecting hole 25 is provided between the pressure relief chamber 24 and the regulating chamber 20, and an air intake pipe 26 is rotatably connected to the right side of the pressure relief box 19 at the center of the right side of the pressure relief cylinder 21;

[0043] The right end of the butt joint pipe 12 penetrates into the interior of the regulating chamber 20 and is fixedly connected with the left end of the regulating chamber 20;

[0044] A through-type pressure relief hole 27 is provided on the inner rear surface of the pressure relief chamber 24, a pressure relief piston plate 28 is slidably connected to the inner part of the pressure relief chamber 24, and a plurality of springs 29 are fixedly connected between the pressure relief piston plate 28 and the pressure relief chamber 24;

[0045] When the regulating cylinder 11 rotates, it will drive the pressure relief cylinder 21 to rotate together, so as to control a docking hole 22 to dock and connect with a connecting hole 25. At this time, two air nozzles 14 are connected to the regulating cylinder 11, and when air is ventilated to the inside of the pressure relief cylinder 21, excess gas will be exhausted to the inside of a pressure relief chamber 24, or two docking holes 5 23 are docked and connected with the connecting hole 25. At this time, one air nozzle 14 is connected to the regulating cylinder 11, and when air is ventilated to the inside of the pressure relief cylinder 21, excess gas will be exhausted to the inside of two pressure relief chambers 24. When the three air nozzles 14 are all connected to the regulating cylinder 11, the connecting hole 25 is blocked and sealed by the pressure relief cylinder 21, and does not participate in the inflation at this time. Therefore, under the condition of a certain inflation amount, different numbers of thin cylinders 6 are controlled to start, and the pressure relief effect can be achieved when the workpiece is clamped;

[0046] A three-way regulating valve 30 is fixed to the right end of the air inlet pipe 26, and a branch pipe 1 31 and a branch pipe 2 32 are fixedly connected to the upper surface and the right side of the three-way regulating valve 30 respectively;

[0047] The right side of the foot pad 2 located on the right side of the upper surface of the lower support plate 1 is fixedly connected with an inflatable box 33, the front surface of the inflatable box 33 is fixedly connected with the rear end of the branch pipe 32, the inflatable box 33 is slidably connected with an extrusion piston plate 34, a plurality of springs 35 are fixedly connected between the extrusion piston plate 34 and the inflatable box 33, the rear surface of the extrusion piston plate 34 is rotatably connected with a push rod 36 through a rotating shaft, the rear end of the push rod 36 penetrates to the rear of the inflatable box 33, and is fixedly connected with a knob 37, the right side of the inflatable box 33 is fixedly connected with an inflatable pump 38, and the output end of the inflatable pump 38 is fixedly connected with the rear end of the branch pipe 31;

[0048] An L-shaped baffle 39 is fixedly connected to the lower rear surface of the inflatable box 33, and an abutment block 40 is fixedly connected to the rear of the outer side wall of the push rod 36;

[0049] By controlling the three-way regulating valve 30, the air inlet pipe 26 can be controlled to connect with the branch pipe 1 31 or the branch pipe 2 32. At this time, the air pump 38 or the air box 33 can be controlled to inflate or exhaust air into the thin cylinder 6 to achieve the effect of automatic or manual control. During manual control, the piston plate 34 is pushed and squeezed by holding the knob 1 37 to achieve inflation. After pushing, the knob 1 37 can be turned so that the abutment block 40 abuts against the inner side of the L-shaped baffle 39 for limiting, so that it is not easy to loosen during inflation clamping.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A pneumatic assembly for precise multi-tasking positioning, comprising a lower support plate (1), characterized in that: The upper surface of the lower support plate (1) is symmetrically fixedly connected with pads (2), the upper surfaces of the two pads (2) are fixedly connected with a lower base plate (3), the upper surface of the lower base plate (3) is disassembled and installed with a clamping plate (4) by means of bolts, the upper surface of the clamping plate (4) is symmetrically fixedly connected with fixed clamping blocks (5) from left to right in sequence, the lower surface of the lower base plate (3) is fixedly connected with a plurality of thin cylinders (6), the top end of the output end of the thin cylinder (6) extends between two fixed clamping blocks (5) opposite to each other, and is fixedly installed with an OK clamp body (7), both sides of the OK clamp body (7) are fixedly connected with OK clamp blocks (8), and the front and rear surfaces of the OK clamp body (7) are fixedly installed with movable clamping blocks (9); The lower surface of the lower support plate (1) is fixedly connected to an adjustment box (10), the interior of the adjustment box (10) is rotatably connected to an adjustment cylinder (11) via a rotating shaft, the right end of the adjustment cylinder (11) is fixedly connected to a docking tube (12), the left end of the adjustment cylinder (11) is fixedly connected to a rotating rod (13), the top of the adjustment box (10) is fixedly connected to a plurality of air nozzles (14), the interior of the adjustment cylinder (11) is provided with a triangular cavity (15), the outer side wall of the triangular cavity (15) is provided with a through-type docking hole 1 (16), two through-type docking holes 2 (17) and three through-type docking holes 3 (18); The left end of the rotating rod (13) is fixedly connected to a rotating disk 1 (41), the upper right side of the rotating disk 1 (41) is fixedly connected to a shaft column (42), the left end of the shaft column (42) is fixedly connected to a rotating disk 2 (43), the right side of the rotating disk 2 (43) is fixedly connected to a shrinking box (44), the interior of the shrinking box (44) is slidably connected to a moving sheet (45), a plurality of springs 3 (46) are fixedly connected between the moving sheet (45) and the shrinking box (44), the left side of the moving sheet (45) is fixedly connected to a hand-held rod (47), the left end of the hand-held rod (47) penetrates To the left of the contraction box (44), and is fixedly connected to a knob 2 (48), the outer wall of the shaft column (42) is rotatably connected to a traction rod (49) via a rotating shaft, the rear end of the traction rod (49) is rotatably connected to a rotating connecting piece (50) via a rotating shaft, the rear end of the rotating connecting piece (50) is fixedly connected to an exhaust piston (51), the outer wall of the exhaust piston (51) is slidably connected to a limit box (52), the bottom of the limit box (52) is fixedly connected to the upper surface of the lower support plate (1), and a through-type ventilation hole (53) is opened on the left side of the limit box (52).

2. A precise multi-positioning pneumatic assembly according to claim 1, characterized in that: The upper surface of the lower support plate (1) is located to the right of the regulating box (10) and is fixedly connected to a pressure relief box (19); an regulating chamber (20) is provided in the front of the interior of the pressure relief box (19); a pressure relief cylinder (21) is rotatably connected to the interior of the regulating chamber (20) via a rotating shaft; a through-type docking hole four (22) and two through-type docking holes five (23) are provided on the outer wall of the pressure relief cylinder (21); a pressure relief chamber (24) is symmetrically provided at the rear of the interior of the pressure relief box (19); a connecting hole (25) is provided between the pressure relief chamber (24) and the regulating chamber (20); and an air intake pipe (26) is rotatably connected to the right of the pressure relief box (19) at the center of the right side of the pressure relief cylinder (21) via a rotating shaft.

3. A pneumatic assembly for precise multi-tasking positioning according to claim 2, characterized in that: The right end of the butt joint pipe (12) penetrates into the interior of the regulating chamber (20) and is fixedly connected to the left end of the regulating chamber (20).

4. The pneumatic assembly for precise multi-tasking positioning according to claim 2, characterized in that: A through-type pressure relief hole (27) is provided on the inner rear surface of the pressure relief chamber (24), a pressure relief piston plate (28) is slidably connected to the interior of the pressure relief chamber (24), and a plurality of springs (29) are fixedly connected between the pressure relief piston plate (28) and the pressure relief chamber (24).

5. The pneumatic assembly for precise multi-tasking positioning according to claim 2, characterized in that: A three-way regulating valve (30) is fixed to the right end of the air intake pipe (26), and a branch pipe 1 (31) and a branch pipe 2 (32) are fixedly connected to the upper surface and the right side of the three-way regulating valve (30) respectively.

6. A precise multi-positioning pneumatic assembly according to claim 5, characterized in that: The right side of the pad (2) located on the right side of the upper surface of the lower support plate (1) is fixedly connected to an air box (33), the front surface of the air box (33) is fixedly connected to the rear end of the branch pipe (32), the air box (33) is slidably connected to an extrusion piston plate (34), a plurality of springs (35) are fixedly connected between the extrusion piston plate (34) and the air box (33), the rear surface of the extrusion piston plate (34) is rotatably connected to a push rod (36) via a rotating shaft, the rear end of the push rod (36) extends to the rear of the air box (33) and is fixedly connected to a knob (37), the right side of the air box (33) is fixedly connected to an air pump (38), the output end of the air pump (38) is fixedly connected to the rear end of the branch pipe (31).

7. A precise multi-positioning pneumatic assembly according to claim 6, characterized in that: An L-shaped baffle plate (39) is fixedly connected below the rear surface of the inflation box (33), and an abutment block (40) is fixedly connected behind the outer side wall of the push rod (36).

8. The pneumatic assembly for precise multi-tasking positioning according to claim 1, characterized in that: The left side of the limit box (52) is fixedly connected to a fixing plate (54) behind the ventilation hole (53), the fixing plate (54) is slidably connected to a guide column (55) inside, the front end of the guide column (55) is fixedly connected to a wedge-shaped sealing block (56), a spring (57) is fixedly connected between the wedge-shaped sealing block (56) and the fixing plate (54), the left front side of the limit box (52) is symmetrically fixedly connected to a limiting plate (58), and the outer wall of the hand-held rod (47) is located between the two limiting plates (58) and is rotatably connected to an abutment plate (59) via a rotating shaft.

Images