Pneumatic angle-controllable rotating module

Abstract

The invention relates to a pneumatic angle-controllable rotating module which comprises a rotating shaft, a module body, a rolling bearing, a gear, a hole clamp spring, a shaft clamp spring, a rack, a stroke limiting guide pressing block, a limiting pin, an air cylinder mounting plate and an air cylinder. One rolling bearing is mounted at the upper end of the rotating shaft, and the other rolling bearing is mounted at the lower end of the rotating shaft; the gear is connected with the rotating shaft through a key; the air cylinder is mounted on the air cylinder mounting plate; the rack is connected with a piston rod of the air cylinder; the rack is meshed with the gear; and the stroke limiting guide pressing block is fixed on the module main body. When the rotary module with the controllable pneumatic angle is used, the required control angle can be obtained only by adjusting the front and back positions of the two stroke limiting guide pressing blocks, changing the length of a movement channel and controlling the movement range of the limiting pin. The module has the advantages of simple structure, convenience in adjustment, rapidness in connection with other parts and the like.

Description

Technical Field

[0001] The present invention relates to a mechanical transmission device, in particular to a pneumatic angle-controllable rotation module. Background Art

[0002] Rotary motion control is widely used in automated production lines. The methods for rotary motion control mainly include servo control, hydraulic control, and pneumatic control. Since most automated production lines adopt pneumatic control, the rotary motion control based on pneumatic control has become the first choice of enterprises. In the rotary control of many automated production lines, the controllability of the rotation angle is the main function of the control. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a pneumatic angle-controllable rotation module.

[0004] The technical solution adopted by the present invention is as follows: The pneumatic angle - controllable rotation module includes a rotating shaft, a module body, rolling bearings, a gear, a hole snap ring, a shaft snap ring, a rack, a stroke - limiting guide pressure block, a limit pin, a cylinder mounting plate, and a cylinder; the rotating shaft is a stepped shaft, one end face of the rotating shaft is provided with 4 connecting threaded holes, and an outer cylindrical surface of the rotating shaft is further provided with a shaft snap - ring groove and a key groove; a vertically - penetrating mounting hole is provided in the middle of the module body, 2 upper threaded holes are provided on both sides of the mounting hole, 2 side threaded holes are respectively provided on both side surfaces of the module body, a U - shaped groove penetrating through both ends is provided on another side surface of the module body, the U - shaped groove is communicated with the mounting hole, 2 guide - pressure - block mounting threaded holes are respectively provided on both sides of the U - shaped groove, a hole snap - ring groove is provided in the middle - lower part of the mounting hole, and a step is provided at the bottom of the mounting hole; a limit - pin hole is provided on the back surface of the rack, and a cylinder - connecting threaded hole is provided on one end face of the rack; the stroke - limiting guide pressure block is in a "7" - shaped structure, and an adjustment groove and a limit projection are provided on the stroke - limiting guide pressure block; the cylinder mounting plate is provided with 2 connecting side holes, 4 cylinder - fixing connecting holes, and a through - hole; there are 2 rolling bearings, both of which are installed in the mounting hole; the rotating shaft is arranged in the mounting hole; one of the rolling bearings is installed at the upper end of the rotating shaft; the gear is connected to the rotating shaft by a key, the hole snap ring is installed in the hole snap - ring groove and presses the gear; the other rolling bearing is installed at the lower end of the rotating shaft, and the shaft snap ring is installed in the shaft snap - ring groove and presses the rolling bearing; the cylinder is installed on the cylinder mounting plate by screws through 4 cylinder - fixing connecting holes; the rack is connected to the piston rod of the cylinder by a connecting screw; the rack passes through the through - hole, is installed in the U - shaped groove and meshes with the gear; there are two stroke - limiting guide pressure blocks, which are respectively fixed on the module body by screws through the guide - pressure - block mounting threaded holes, and at the same time, the two limit projections face each other; the limit pin passes through a movement channel formed between the two stroke - limiting guide pressure blocks and is fixed on the limit - pin hole.

[0005] The beneficial effects of the present invention are as follows: When using the pneumatic angle - controllable rotation module, as long as the front - and - back positions of the two stroke - limiting guide pressure blocks are adjusted, the length of the movement channel is changed, the movement range of the limit pin is controlled, and thus the required control angle can be obtained. This module has the advantages of simple structure, convenient adjustment, and quick connection with other components. Brief Description of the Drawings

[0006] The following further explains in conjunction with the drawings of the present invention: Figure 1 It is a partial cross - sectional view of the structure of the present invention.

[0007] Figure 2 It is a schematic diagram of the structure of the present invention.

[0008] Figure 3 It is a schematic diagram of the module main body structure.

[0009] Figure 4 It is a sectional view of the module main body structure.

[0010] Figure 5 It is a schematic diagram of the rotating shaft structure.

[0011] Figure 6 It is a schematic diagram of the rack structure.

[0012] Figure 7 It is a schematic diagram of the cylinder mounting plate structure.

[0013] Figure 8 It is a schematic diagram of the stroke limit guide pressure block structure.

[0014] In the figure, 1. Rotating shaft, 2. Module main body, 3. Rolling bearing, 4. Gear, 5. Hole circlip, 6. Shaft circlip, 7. Rack, 8. Stroke limit guide pressure block, 9. Limit pin, 10. Cylinder mounting plate, 11. Cylinder, 12. Connecting threaded hole, 13. Shaft circlip groove, 14. Keyway, 21. Mounting hole, 22. Upper threaded hole, 23. Side threaded hole, 24. U-shaped groove, 25. Guide pressure block mounting threaded hole, 26. Hole circlip groove, 27. Step, 71. Limit pin hole, 72. Cylinder connecting threaded hole, 81. Adjusting groove, 82. Limit convex, 101. Connecting side hole, 102. Cylinder fixed connecting hole, 103. Through hole. Embodiment

[0015] The pneumatic angle controllable rotation module includes a rotating shaft 1, a module body 2, a rolling bearing 3, a gear 4, a hole circlip 5, a shaft circlip 6, a rack 7, a stroke limit guiding pressure block 8, a limit pin 9, a cylinder mounting plate 10 and a cylinder 11; the rotating shaft 1 is a stepped shaft, one end face of the rotating shaft 1 is provided with 4 connecting threaded holes 12, and an outer cylindrical surface of the rotating shaft 1 is further provided with a shaft circlip groove 13 and a keyway 14; a vertically penetrating mounting hole 21 is provided in the middle of the module body 2, two upper threaded holes 22 are provided on both sides of the mounting hole 21, two side threaded holes 23 are respectively provided on both sides of the side surface of the module body 2, a U-shaped groove 24 penetrating through both ends is provided on another side surface of the module body 2, the U-shaped groove 24 is communicated with the mounting hole 21, two guiding pressure block mounting threaded holes 25 are provided on both sides of the U-shaped groove 24, a hole circlip groove 26 is provided in the middle and lower part of the mounting hole 21, and a step 27 is provided at the bottom of the mounting hole 21; a limit pin hole 71 is provided on the back surface of the rack 7, and a cylinder connecting threaded hole 72 is provided on one end face of the rack 7; the stroke limit guiding pressure block 8 is of a "7"-shaped structure, and an adjusting groove 81 and a limit projection 82 are provided on the stroke limit guiding pressure block 8; the cylinder mounting plate 10 is provided with two connecting side holes 101, four cylinder fixing connection holes 102 and a through hole 103; there are two rolling bearings 3, both of which are installed in the mounting hole 21; the rotating shaft 1 is arranged in the mounting hole 21; one rolling bearing 3 is installed at the upper end of the rotating shaft 1; the gear 4 is connected to the rotating shaft 1 by a key, the hole circlip 5 is installed in the hole circlip groove 26 and presses the gear 4; the other rolling bearing 3 is installed at the lower end of the rotating shaft 1, and the shaft circlip 6 is installed in the shaft circlip groove 13 and presses the rolling bearing 3; the cylinder 11 is installed on the cylinder mounting plate 10 by screws through four cylinder fixing connection holes 102; the rack 7 is connected to a piston rod of the cylinder 11 by a connecting screw; the rack 7 passes through the through hole 103, is installed in the U-shaped groove 24 and meshes with the gear 4; there are two stroke limit guiding pressure blocks 8, which are respectively fixed to the module body 2 by screws through the guiding pressure block mounting threaded holes 25, and at the same time the two limit projections 82 face each other; the limit pin 9 passes through a movement channel formed between the two stroke limit guiding pressure blocks 8 and is fixed to the limit pin hole 71.

[0016] When using the pneumatic angle controllable rotation module, as long as the front and rear positions of the two stroke limit guiding pressure blocks 8 are adjusted, the length of the movement channel formed between the two stroke limit guiding pressure blocks 8 is changed, thereby controlling the movement range of the limit pin 9, and then a mechanism composed of the cylinder 11 driving the rack 7 and the gear 4 is used to convert linear motion into rotational motion, thereby obtaining the required control angle.

Claims

1. A pneumatic angle - controllable rotation module, comprising a rotating shaft, a module body, rolling bearings, a gear, a hole circlip, a shaft circlip, a rack, a stroke - limiting guide block, a limit pin, a cylinder mounting plate and a cylinder; It is characterized in that: The rotating shaft is a stepped shaft. One end face of the rotating shaft is provided with 4 connecting threaded holes, and an outer cylindrical surface of the rotating shaft is further provided with a shaft circlip groove and a keyway; A vertically - penetrating mounting hole is provided in the middle of the module body. Two upper threaded holes are provided on both sides of the mounting hole. Two side threaded holes are respectively provided on both sides of the side surface of the module body. A U - shaped groove penetrating through both ends is provided on another side surface of the module body. The U - shaped groove communicates with the mounting hole. Two guide - block mounting threaded holes are provided on each side of the U - shaped groove. A hole circlip groove is provided in the middle - lower part of the mounting hole. A step is provided at the bottom of the mounting hole; A limit - pin hole is provided on the back surface of the rack. A cylinder - connecting threaded hole is provided on one end face of the rack; The stroke - limiting guide block is in a "7" - shaped structure, and an adjustment groove and a limit projection are provided on the stroke - limiting guide block; The cylinder mounting plate is provided with 2 connecting side holes, 4 cylinder - fixing connection holes and a through - hole; There are 2 rolling bearings, both of which are installed in the mounting hole; The rotating shaft is arranged in the mounting hole; One of the rolling bearings is installed at the upper end of the rotating shaft; The gear is connected to the rotating shaft by a key. The hole circlip is installed in the hole circlip groove and presses the gear; The other rolling bearing is installed at the lower end of the rotating shaft. The shaft circlip is installed in the shaft circlip groove and presses the rolling bearing; The cylinder is installed on the cylinder mounting plate by 4 cylinder - fixing connection holes using screws; The rack is connected to the piston rod of the cylinder by a connecting screw; The rack passes through the through - hole, is installed in the U - shaped groove and meshes with the gear; There are two stroke - limiting guide blocks, which are respectively fixed to the module body by screws through the guide - block mounting threaded holes, and at the same time, the two limit projections face each other; The limit pin passes through a movement channel formed between the two stroke - limiting guide blocks and is fixed in the limit - pin hole.

Images