CN213531398U

CN213531398U - Chuck transmission device and integrated pneumatic chuck

Info

Publication number: CN213531398U
Application number: CN202022037773.0U
Authority: CN
Inventors: 蔡小亮
Original assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Current assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-06-25
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses a chuck transmission device and an integrated pneumatic chuck, wherein the chuck transmission device comprises a first pushing component and a second pushing component which are arranged in a cross-shaped overlapping way and do linear motion along the length direction of the chuck; first promotion subassembly includes the first push rod that sets up along chuck circumference symmetry and the first piston that links to each other with first push rod front end is fixed, second push rod subassembly includes the second push rod that sets up along chuck circumference symmetry and the second piston that links to each other with second push rod front end is fixed, the equal swing joint in front end of first piston and second piston has the pendulum rod that is suitable for drive chuck sliding block along chuck radial movement. The utility model discloses cancelled current connecting rod transmission mode, shortened the driving chain, improved the transmission precision to improve the centre gripping precision when guaranteeing that the gripper subassembly clamp force is stable.

Description

Chuck transmission device and integrated pneumatic chuck

Technical Field

The utility model relates to a pneumatic chuck field especially relates to a chuck transmission and integral type pneumatic chuck.

Background

The air chuck is a key part of laser cutting equipment, and parts with complex shapes, high precision and the like to be cut on the laser equipment, such as various pipes, profiles and the like, can be realized only by clamping the parts by the chuck and matching the parts with the equipment to perform various feed motions. At present, a plurality of chucks with higher similarity are available in the market, the transmission mode and the appearance are similar, the functions are almost the same, and the main difference is the cost and the structure. Especially for the tail card, the feeding chuck is used as a feeding chuck and also has the function of multiple degrees of freedom such as axial feeding, circumferential feeding and the like, the function is strong, and the required transmission precision is high. On jack catch clamping structure, mostly adopt the connecting rod mode drive jack catch subassembly, for example patent number CN209736860U, the name is a chuck with take out dirt function, owing to receive the influence of space and manufacturing accuracy, the connecting rod transmission always can lead to warping because of receiving the eccentric force to influence the atress of transmission precision and jack catch subassembly, finally influence clamp force and centre gripping precision etc.. Therefore, the transmission mode of the connecting rod is improved, and then the transmission precision is improved, so that the stable clamping force of the jaw assembly is ensured, and the technical field of chucks for improving the clamping precision is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a chuck transmission and integral type air chuck to prior art's weak point, cancelled current connecting rod transmission mode, shortened the driving chain, improve the transmission precision to improve the centre gripping precision when guaranteeing that the gripper subassembly clamp force is stable.

Realize the utility model discloses purpose technical scheme is:

a chuck transmission device comprises a first pushing assembly and a second pushing assembly which are arranged in a cross-shaped overlapping mode and do linear motion along the length direction of a chuck; first promotion subassembly includes the first push rod that sets up along chuck circumference symmetry and the first piston that links to each other with first push rod front end is fixed, second push rod subassembly includes the second push rod that sets up along chuck circumference symmetry and the second piston that links to each other with second push rod front end is fixed, the equal swing joint in front end of first piston and second piston has the pendulum rod that is suitable for drive chuck sliding block along chuck radial movement.

Furthermore, square holes are formed in the first piston and the second piston, the swing rod is of an L-shaped structure, a circular hinge hole is formed in the middle of the swing rod, and rotating portions matched with the sliding block and the square holes are arranged at two ends of the swing rod respectively.

Further, a bushing is embedded in the hinge hole.

Furthermore, a push rod guide ring is sleeved on the first push rod and the second push rod.

Furthermore, a plurality of round holes are formed in the push rod guide ring and the second piston.

Furthermore, a first annular groove and a second annular groove are respectively formed in the outer peripheral surfaces of the first piston and the second piston, and a first piston guide ring and a second piston guide ring are respectively arranged in the first annular groove and the second annular groove.

An integrated pneumatic chuck comprises a base and a rotating body which is positioned in the base and rotates around the rotating body, wherein a clamping jaw disc is assembled at the front end of the rotating body, and a gas distribution ring assembly communicated with an external gas source is arranged at the rear end of the rotating body; the front end of the jaw disc is provided with a plurality of jaw assemblies which slide along the radial direction of the chuck, the rear end of the jaw disc is provided with a boss which extends backwards, a driving device which drives the jaw assemblies to move away from or together is arranged in the rotating body, and the driving device comprises a driver which is communicated with the gas distribution ring assembly through a gas pipe and a transmission device which is fixedly arranged at the power output end of the driver; the middle part of the swing rod of the transmission device is hinged with the boss.

The clamping mechanism further comprises a dust extraction pipe penetrating through the rotating body, one end of the dust extraction pipe extends to one side of the clamping station, and the other end of the dust extraction pipe extends to the gas distribution ring assembly; the distribution ring assembly is of a hollow structure, and the rear end of the distribution ring assembly is provided with a connector connected with an external exhaust fan.

Furthermore, a dust cover is fixedly mounted at the front end of the jaw plate, a through hole is formed in the center of the dust cover, a hollow shaft which extends backwards and is inserted into the center of the jaw plate is arranged at the rear end of the through hole, and the inner diameter of the front end of the through hole is larger than that of the rear end of the through hole; the circumference evenly distributed of dust cover has the square logical groove that matches with the jack catch subassembly and supply the jack catch subassembly to remove.

Furthermore, the inner ring of the base is provided with double bearings, a spacer sleeve is arranged between the double bearings, and the rotating body is rotatably installed in the base through the double bearings and comprises a rotary support body fixedly connected with the inner ring of the double bearings and a driven gear ring fixedly sleeved on the rotary support body; the driver is fixedly arranged in the slewing bearing body.

Furthermore, a push rod guide ring of the transmission device is fixedly connected with the rotary supporting body, so that the push rod guide ring is ensured to have no autorotation and is used for the axial guide function of the push rod.

Further, driven ring gear dustcoat is equipped with the gear cover of fixed mounting in the base rear end, one side fixed mounting of gear cover has the speed reducer subassembly with driven ring gear matched with.

Furthermore, a proximity switch suitable for detecting the rotation angle of the driven gear ring is fixedly arranged on the gear cover.

Furthermore, the gas distribution ring assembly comprises a fixed sleeve sleeved at the rear end of the dust extraction pipe and a rotating sleeve rotatably sleeved outside the fixed sleeve and fixedly installed at the rear end of the rotary support body.

Furthermore, the rear end of the air distribution ring assembly is fixedly provided with an anti-rotation plate sleeved on the joint.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

(1) the utility model discloses transmission replaces current bearing mechanism and wears to establish the transmission mode who bears the mechanism and consecutive push rod, connecting rod and pendulum rod through the transmission mode of the push rod that adopts consecutive push rod, piston and pendulum rod, and current transmission is owing to adopt the connecting rod structure, and the loss of power is great, and the tie point is more, and the structure is more complicated, and the assembly degree of difficulty is big, the utility model discloses shortened the driving chain, simplified the structure, the pendulum rod both sides arm of force change when the action is very little, greatly reduced the loss of power, improved the transmission precision to improve the centre gripping precision when guaranteeing that the clamping jaw subassembly clamp force is stable.

(2) The utility model discloses transmission's pendulum rod is L type structure, and the middle part is equipped with circular hinge hole for be connected with the card carousel, both ends are equipped with rotation portion respectively, be used for with sliding block and piston connection, thereby realize that the push rod promotes the piston and is reciprocating motion, and the piston drives the pendulum rod and rotates along middle part articulated department, and then realizes the effect of drive sliding block.

(3) The utility model discloses it has the bush to inlay in the hinge hole of pendulum rod, frictional force when reducing the pendulum rod rotation.

(4) The utility model discloses a cover is equipped with the push rod guide ring on the push rod for the axial guide effect of push rod further guarantees transmission's transmission stability.

(5) The utility model discloses a all be equipped with a plurality of round holes on push rod guide ring and the second piston, further alleviate the weight of push rod guide ring and second piston, reduce inertia when the chuck rotates.

(6) The utility model discloses a still be equipped with first piston guide ring and second piston guide ring on first piston and the second piston, improve piston lubrication and wear-resisting function when guaranteeing the axial guide effect.

(7) The utility model discloses integral type air chuck through set up rotatory body and place the interior drive arrangement of rotatory body in, realizes the rotation of chuck and the centre gripping of jack catch subassembly, and drive arrangement includes the driver and the transmission that links to each other with the driver, and transmission adopts the transmission mode of consecutive push rod, piston and pendulum rod, has improved the transmission precision, and then improves the centre gripping precision when guaranteeing that jack catch subassembly clamp force is stable.

(8) The utility model discloses integral type air chuck still is equipped with takes out the dirt pipe to realize automatic dust function of taking out, avoid a large amount of pieces that produce in the tubular product cutting process, cause environmental pollution.

(9) The utility model discloses integral type air chuck's jack catch dish front end fixed mounting has the dust cover, among the prior art, has set up and has taken out the dirt pipe, nevertheless for the fretwork design between the spout of jack catch dish and sliding block, in the piece easily enters into the spout, causes the sliding block to remove the jamming, influences normal use, through addding the dust cover, can effectively avoid this type of phenomenon to take place.

(10) The utility model discloses integral type air chuck realizes rotating the body through setting up duplex bearing structure and is connected with the rotation of base, rotates more stably.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the swing link structure of the present invention;

FIG. 4 is a schematic view of the dust cover of the present invention;

fig. 5 is a schematic structural diagram of the driving device of the present invention.

The reference numbers in the drawings are:

the device comprises a base 1, a double bearing 2, a spacer bush 3, a rotary supporting body 4, a jaw disc 5, a boss 5-1, a gas distribution ring assembly 6, a fixed sleeve 6-1, a rotary sleeve 6-2, a jaw assembly 7, a driver 8, a first push rod 9, a first piston 10, a first piston guide ring 10-1, a second push rod 11, a second piston 12, a second piston guide ring 12-1, a swing rod 13, a hinge hole 13-1, an annular bushing 13-2, a rotary part 13-3, a push rod guide ring 14, a round hole 15, a dust exhaust pipe 16, a joint 17, an anti-rotation plate 18, a dust cover 19, a hollow shaft 19-1, a gear cover 20, a speed reducer assembly 21, a proximity switch 22 and a driven gear ring 23.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

(example 1)

Referring to fig. 1 to 5, the integrated air chuck of the present embodiment includes a base 1, and a rotating body disposed in the base 1 and rotating around itself. The inner ring of the base 1 is provided with double bearings 2, and a spacer 3 is arranged between the double bearings 2. The rotating body comprises a rotary support body 4 fixedly connected with the inner ring of the double bearing 2 and a driven gear ring 23 fixedly sleeved on the rotary support body 4, and the rotary support body 4 is rotatably installed in the base 1 through the double bearing 2.

The front end of the rotary supporting body 4 is provided with a jaw disc 5, and the rear end is provided with a gas distribution ring assembly 6 communicated with an external gas source. The front end of the jaw disc 5 is symmetrically provided with two groups of four jaw assemblies 7 which slide along the radial direction of the chuck, each jaw assembly 7 comprises a sliding block and a jaw fixedly installed on the sliding block, and the rear end of the jaw disc 5 is provided with a boss 5-1 which extends backwards. And a driving device for driving the jaw assemblies 7 to move away from or together is fixedly arranged in the rotary supporting body 4. The driving device comprises a driver 8 communicated with the gas distribution ring assembly 6 through a gas pipe and a transmission device fixedly arranged at the power output end of the driver 8, the driver 8 is preferably an air cylinder, and the power output is more stable.

The transmission device comprises a first pushing assembly and a second pushing assembly which are arranged in a crossed mode in an overlapping mode and move linearly along the length direction of the chuck. The first pushing assembly comprises first push rods 9 symmetrically arranged along the circumferential direction of the chuck and a first piston 10 fixedly connected with the front ends of the first push rods 9. The second push rod assembly comprises a second push rod 11 and a second piston 12, the second push rod 11 is symmetrically arranged along the circumferential direction of the chuck, the second piston 12 is fixedly connected with the front end of the second push rod 11, and the front ends of the first piston 10 and the second piston 12 are movably connected with a swing rod 13. The first push rod 9 and the second push rod 11 are sleeved with push rod guide rings 14 fixedly connected with the rotary supporting body 4, so that the push rod guide rings 14 are ensured not to transmit by themselves and used for the axial guide function of the push rods, and the transmission stability of the transmission device is further ensured. And a plurality of round holes 15 are formed in the push rod guide ring 14 and the second piston 12, so that the weights of the push rod guide ring 14 and the second piston 12 are further reduced, and the rotational inertia is reduced when the chuck rotates. The outer peripheral surfaces of the first piston 10 and the second piston 12 are respectively provided with a first annular groove and a second annular groove, and a first piston guide ring 10-1 and a second piston guide ring 12-1 are respectively arranged in the first annular groove and the second annular groove, so that the lubricating and wear-resisting functions of the pistons are improved while the axial guide effect is ensured.

The swing rod 13 is of an L-shaped structure, a circular hinge hole 13-1 is formed in the middle of the swing rod 13, the middle of the swing rod 13 is hinged to the boss 5-1 through a fixing pin, and a copper annular bush 13-2 is inlaid between the hinge hole 13-1 and the fixing pin, so that friction force generated when the swing rod 13 rotates is reduced. Square holes are arranged on the first piston 10 and the second piston 12, rotating parts 13-3 matched with the sliding block and the square holes are arranged at two ends of the swing rod 13 respectively, and when the push rod pushes the pistons to reciprocate, the swing rod 13 drives the sliding block to move along the radial direction of the chuck.

The inside of the rotary supporting body 4 is also provided with a dust extraction pipe 16 which penetrates through the front and the back, so that the environmental pollution caused by a large amount of scraps generated in the pipe cutting process is avoided. One end of the dust extraction pipe 16 extends to one side of the clamping station, and the other end extends to the gas distribution ring assembly 6. The gas distribution ring assembly 6 comprises a fixed sleeve 6-1 sleeved at the rear end of the dust extraction pipe 16 and a rotating sleeve 6-2 rotatably sleeved outside the fixed sleeve 6-1 and fixedly arranged at the rear end of the rotary support body 4. A channel for providing a power source for the air cylinder is formed between the outer periphery of the fixed sleeve 6-1 and the inner periphery of the rotating sleeve 6-2, two ends of the channel are respectively provided with a port for communicating the air cylinder and an external air source, the port connected with the air cylinder is arranged at the front end of the rotating sleeve 6-2, and the port connected with the external air source is arranged at the rear part of the fixed sleeve 6-1. The rear end of the fixed sleeve 6-1 is connected with a joint 17 for connecting an external exhaust fan, and the joint 17 is sleeved with an anti-rotation plate 18 fixedly arranged on the fixed sleeve 6-1 to prevent the fixed sleeve 6-1 from rotating when the chuck rotates.

In prior art, though set up and taken out dirt pipe 16, be the fretwork design between the spout of jack catch dish 5 and sliding block, in the piece easily gets into the spout, cause the sliding block to remove the jamming, influence normal use. In order to avoid the phenomenon, the front end of the claw disc 5 is fixedly provided with a dust cover 19, the center of the dust cover 19 is provided with a through hole 19-1, the rear end of the through hole 19-1 is provided with a hollow shaft 19-2 which extends backwards and is inserted into the center of the claw disc 5, the inner diameter of the front end of the through hole 19-1 is larger than that of the rear end, and therefore the scraps can enter the through hole 19-1 and can be discharged to the outside through the hollow shaft 19-2 and the dust exhaust pipe 16. Four square through grooves which are matched with the jaw assemblies 7 and are used for moving the jaw assemblies 7 are uniformly distributed in the circumferential direction of the dust cover 19. The peripheral surface of the dust cover 19 is provided with four fan-shaped grooves positioned between the through grooves in the adjacent direction, so that the weight of the dust cover 19 is further reduced, and the rotational inertia of the chuck is reduced.

The driven gear ring 23 of this embodiment is covered with a gear cover 20 fixedly mounted on the rear end of the base 1, and a speed reducer assembly 21 matched with the driven gear ring 23 is fixedly mounted on one side of the gear cover 20. The speed reducer assembly 21 is pre-assembled, and can be directly matched with a laser cutting machine to be practical and more convenient. Still fixedly on the gear cover 20 being equipped with proximity switch 22, install on the driven ring gear 23 with proximity switch matched with bolt for detect driven ring gear 23 turned angle, and then detect the turned angle of chuck, can satisfy the special angle cutting requirement of tubular product.

The transmission of this implementation is through adopting consecutive push rod, the transmission mode of piston and pendulum rod replaces current bearing mechanism and wears to establish in bearing mechanism and consecutive push rod, the transmission mode of connecting rod and pendulum rod, current transmission is owing to adopt the connecting rod structure, the loss of power is great, the tie point is more, the structure is more complicated, the assembly degree of difficulty is big, the driving chain has been shortened to this embodiment, the simplified structure, the pendulum rod changes very little when the action both sides arm of force, greatly reduced the loss of power, transmission precision has been improved, thereby improve the centre gripping precision when guaranteeing that the clamping jaw subassembly clamp force is stable.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A chuck transmission device is characterized in that: the chuck comprises a first pushing assembly and a second pushing assembly which are arranged in a cross-shaped overlapping manner and do linear motion along the length direction of the chuck; first promotion subassembly includes first push rod (9) and first piston (10) fixed continuous with first push rod (9) front end that set up along chuck circumference symmetry, second promotion subassembly includes second push rod (11) and second piston (12) fixed continuous with second push rod (11) front end that set up along chuck circumference symmetry, the equal swing joint in front end of first piston (10) and second piston (12) has pendulum rod (13) that are suitable for drive chuck sliding block along chuck radial movement.

2. A chuck drive according to claim 1, further comprising: the first piston (10) and the second piston (12) are both provided with square holes, the swing rod (13) is of an L-shaped structure, the middle part of the swing rod is provided with a circular hinge hole (13-1), and the two ends of the swing rod are respectively provided with a rotating part (13-3) matched with the sliding block and the square holes.

3. A chuck drive according to claim 2, further comprising: a bushing (13-2) is embedded in the hinge hole (13-1).

4. A chuck drive according to claim 1, further comprising: the first push rod (9) and the second push rod (11) are sleeved with push rod guide rings (14).

5. A chuck drive according to claim 4, further comprising: and a plurality of round holes (15) are formed in the push rod guide ring (14) and the second piston (12).

6. A chuck drive according to claim 1, further comprising: the outer peripheral surfaces of the first piston (10) and the second piston (12) are respectively provided with a first annular groove and a second annular groove, and a first piston guide ring (10-1) and a second piston guide ring (12-1) are respectively arranged in the first annular groove and the second annular groove.

7. An integral type air chuck which characterized in that: the device comprises a base (1) and a rotating body which is positioned in the base (1) and rotates around the rotating body, wherein a claw disc (5) is assembled at the front end of the rotating body, and a gas distribution ring assembly (6) communicated with an external gas source is arranged at the rear end of the rotating body; the front end of the jaw disc (5) is provided with a plurality of jaw assemblies (7) which slide along the radial direction of the chuck, the rear end of the jaw disc is provided with a boss (5-1) which extends backwards, a driving device which drives the jaw assemblies (7) to move away from or together is arranged in the rotating body, the driving device comprises a driver (8) which is communicated with the gas distribution ring assembly (6) through a gas pipe, and the transmission device which is fixedly arranged at the power output end of the driver (8) and is used as claimed in any one of claims 1 to 6; the middle part of a swing rod (13) of the transmission device is hinged with the boss (5-1).

8. The integrated air chuck according to claim 7, wherein: the clamping device further comprises a dust extraction pipe (16) penetrating through the rotating body, one end of the dust extraction pipe (16) extends to one side of the clamping station, and the other end of the dust extraction pipe extends to the gas distribution ring assembly (6); the air distribution ring assembly (6) is of a hollow structure, and the rear end of the air distribution ring assembly is provided with a connector (17) connected with an external exhaust fan.

9. The integrated air chuck according to claim 8, wherein: a dust cover (19) is fixedly mounted at the front end of the jaw disc (5), a through hole (19-1) is formed in the center of the dust cover (19), a hollow shaft (19-2) which extends backwards and is inserted into the center of the jaw disc (5) is arranged at the rear end of the through hole (19-1), and the inner diameter of the front end of the through hole (19-1) is larger than that of the rear end; the circumference evenly distributed of dust cover (19) matches with jack catch subassembly (7) and supplies the square through groove that jack catch subassembly (7) removed.

10. The integrated air chuck according to claim 7, wherein: the rotary body is rotatably arranged in the base (1) through the double bearings (2) and comprises a rotary support body (4) fixedly connected with the inner ring of the double bearings (2) and a driven gear ring (23) fixedly sleeved on the rotary support body (4); the drive (8) is fixedly mounted in the rotary support body (4).