CN213531239U

CN213531239U - Chuck driving device and chuck

Info

Publication number: CN213531239U
Application number: CN202021869748.2U
Authority: CN
Inventors: 任俊杰
Original assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Current assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-06-25
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a chuck driving device and a chuck, wherein the chuck driving device comprises two groups of transmission mechanisms and a power source, each group of transmission mechanisms comprises a rotating shaft symmetrically arranged along the circumferential direction of the chuck and a fluted disc and a push rod which are coaxially and fixedly arranged on the rotating shaft; the transmission mechanism further comprises a synchronizing ring, the synchronizing ring is connected with one end of the push rod, and the power source is suitable for driving the push rod to drive the synchronizing ring and the rotating shaft to rotate. The utility model discloses the clamp force is stable, frictional resistance is little, the synchronism is high and the structure is succinct, has reduced manufacturing cost simultaneously.

Description

Chuck driving device and chuck

Technical Field

The utility model relates to a chuck field especially relates to a chuck drive arrangement and chuck.

Background

Laser cutting is the most important application technology in the laser processing industry, and has the characteristics of high speed, high precision, no deformation of workpieces and the like, so that the laser cutting technology is widely applied to the fields of automobiles, rolling stock manufacturing, aviation, chemical engineering, light industry, electrical appliances, electronics, petroleum, metallurgy and the like.

The chuck is used as an important accessory of laser cutting equipment and is used for clamping and conveying pipes and profiles made of various materials, so that the pipes and the profiles are machined. The 201810772351.2 patent chuck positioning and clamping device drives a rotating disc with a tooth structure to rotate through a power source so as to drive a tooth transmission mechanism matched with the rotating disc to move, and further realizes that sliding blocks matched with the tooth transmission mechanism to move away from or together. Although the driving device with the structure solves the defects of poor clamping positioning precision and clamping force, large friction resistance, large attenuation of the clamping force, poor synchronism relative to the clamping jaws and the like of the traditional groove-shaped guide chuck, the structure is complex, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a chuck drive arrangement and chuck to prior art's weak point, the clamp force is stable, frictional resistance is little, the synchronism is high and the structure is succinct, has reduced manufacturing cost simultaneously.

Realize the utility model discloses purpose technical scheme is:

a chuck driving device comprises two groups of transmission mechanisms and a power source, wherein each group of transmission mechanisms comprises a rotating shaft symmetrically arranged along the circumferential direction of a chuck, and a fluted disc and a push rod which are coaxially and fixedly arranged on the rotating shaft; the transmission mechanism further comprises a synchronizing ring, the synchronizing ring is connected with one end of the push rod, and the power source is suitable for driving the push rod to drive the synchronizing ring and the rotating shaft to rotate.

Further, the power source is a cylinder.

Further, the fluted disc is of a fan-shaped structure.

Furthermore, one end of the push rod is rotatably provided with a synchronizing pin, the peripheral surface of the synchronizing ring is symmetrically provided with rotating grooves matched with the synchronizing pin, and the push rod drives the synchronizing ring to rotate through the synchronizing pin.

Furthermore, a hinge plate is fixedly arranged on a piston rod of the air cylinder, a pin shaft is rotatably arranged on the hinge plate, a waist-shaped hole is formed in the other end of the push rod, and the hinge plate is connected with the push rod through the pin shaft and the waist-shaped hole.

A chuck comprises a base and a rotating body which is arranged in the base and rotates around the base; the front end of the rotating body is symmetrically provided with a plurality of groups of sliding blocks which slide along the radial direction of the rotating body, and the front ends of the sliding blocks are fixedly provided with clamping jaw assemblies; a chuck driving device is arranged in the rotating body, and a rack matched with the fluted disc is arranged on one side of the sliding block; and an air sealing disc device is arranged at the rear end of the rotating body.

Further, the inner ring of the base is provided with a bearing, and the rotating body is installed in the base through the bearing.

Further, the rotating body comprises a chuck body and a driven gear ring which are fixedly arranged at the front end and the rear end of the bearing inner ring respectively; an inner sleeve is fixedly arranged at the rear end of the inner ring of the chuck body, and a flange plate sleeved on the inner sleeve is fixedly arranged at the rear end of the driven gear ring; two ends of a rotating shaft of the driving device are respectively and rotatably connected with the chuck body and the flange plate; the synchronous ring is sleeved on the inner sleeve; the power source is fixedly arranged at the rear end of the chuck body.

Further, a shell which covers the driven gear ring is fixedly arranged at the rear end of the bearing outer ring, and a speed reducer matched with the driven gear ring is fixedly arranged on the shell.

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

(1) the chuck driving device drives the push rod through the power source, drives the rotating shaft fixedly connected with the push rod to rotate, further realizes the rotation of the fluted disc fixedly connected with the rotating shaft, and simultaneously drives the synchronizing ring connected with the push rod to rotate, thereby realizing the linkage of a group of transmission mechanisms;

(2) the utility model discloses chuck drive arrangement's power supply is the cylinder, and the load is big, the output is stable, the action is rapid, the reaction is fast, operational environment adaptability is good.

(3) The utility model discloses chuck drive arrangement's fluted disc is the fan type structure, further simplifies the structure on the basis of guaranteeing the sliding block stroke, has reduced manufacturing cost.

(4) The utility model discloses chuck drive arrangement sets up the rotation groove through the symmetry on the outer peripheral face of synchronizing ring, utilizes the synchronizing pin to link to each other synchronizing ring and push rod, has rotated through push rod drive synchronizing ring to realize that a set of drive mechanism realizes the linkage.

(5) The utility model discloses chuck drive arrangement's cylinder piston rod is fixed to be equipped with the flap, and the flap links to each other with the push rod through round pin axle and waist type hole to realize the motion of cylinder drive push rod.

(6) The utility model discloses the chuck adopts above-mentioned chuck drive arrangement, through the motion of chuck drive arrangement drive sliding block, the distance between this in-process drive arrangement's power supply and the axis of rotation remains unchanged throughout, and the power of power supply during operation output is the same, and the moment of production is unchangeable throughout, therefore produces the clamp force when jack catch mechanism does the motion that fits together invariably, and the clamp force size does not receive the influence of tubular product pipe diameter, and the clamp force is more stable, and this structure chuck is more succinct, low in manufacturing cost.

(7) The utility model discloses the chuck is through setting up the flange board, is convenient for install chuck drive arrangement's drive mechanism.

(8) The utility model discloses the chuck pre-installation has the speed reducer, can directly link to each other with laser cutting machine, and it is more convenient to use, avoids the inside device of chuck to expose simultaneously, plays fine dustproof effect.

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 view of the chuck structure of the present invention;

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

fig. 3 is the installation schematic diagram of the chuck driving device and the sliding block of the present invention.

The reference numbers in the drawings are:

the device comprises a base 1, a bearing 2, an air-tight sealing disc device 3, a chuck body 4, a driven gear ring 5, a sliding block 6, a rack 6-1, a jaw assembly 7, an inner sleeve 8, a flange plate 9, a transmission mechanism 10, a rotating shaft 10-1, a fluted disc 10-2, a push rod 10-3, a synchronizing pin 10-4, a kidney-shaped hole 10-5, a synchronizing ring 10-6, a rotating groove 10-7, a power source 11, a hinge plate 11-1, a pin shaft 11-2, a shell 12 and a speed reducer 13.

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 3, the chuck of the present embodiment includes a base 1, an inner ring of the base 1 is provided with a bearing 2, and the chuck of the present embodiment further includes a rotating body installed in the base 1 through the bearing 2 and rotating around itself. A chuck driving device is arranged in the rotating body, and an air sealing disc device 3 is arranged at the rear end of the rotating body, so that the rotating sealing function is realized.

The rotating body comprises a chuck body 4 and a driven gear ring 5 which are respectively and fixedly arranged at the front end and the rear end of the inner ring of the bearing 2. The front end of the chuck body 4 is symmetrically provided with two groups of four sliding blocks 6 which slide along the radial direction of the chuck body 4, the front end of each sliding block 6 is fixedly provided with a clamping jaw assembly 7, and one side of each sliding block 6 is provided with a rack 6-1. An inner sleeve 8 is fixedly arranged at the rear end of the inner ring of the chuck body 4, and a flange plate 9 sleeved on the inner sleeve 8 is fixedly arranged at the rear end of the driven gear ring 5, so that the chuck driving device is convenient to mount.

The chuck driving device comprises two groups of transmission mechanisms 10 and a power source 11, wherein each group of transmission mechanisms 10 comprises a rotating shaft 10-1 symmetrically arranged along the circumferential direction of the chuck, a fluted disc 10-2 coaxially and fixedly arranged on the rotating shaft 10-1 and a push rod 10-3. Two ends of the rotating shaft 10-1 are respectively connected with the chuck body 4 and the flange plate 9 in a rotating way. The fluted disc 10-2 is matched with the rack 6-1 and adopts a fan-shaped structure, so that the size of the fluted disc 10-2 can be reduced on the basis of meeting the stroke requirement of the sliding block 6, and the production cost is reduced.

The power source 11 is a cylinder, has large load, stable output, rapid action, fast reaction and good working environment adaptability, and is provided with four power sources and is fixedly arranged at the rear end of the chuck body 4. The air cylinder is connected with the air sealing disc device 3 through an air pipe, and the air sealing disc device 3 is communicated with an external air source through an air pipe. A piston rod of the air cylinder is fixedly provided with a hinge plate 11-1, and a pin shaft 11-2 is rotatably arranged on the hinge plate 11-1. The push rod 10-3 is of a fish tail type structure, one end of the push rod is rotatably provided with a synchronizing pin 10-4, the other end of the push rod is provided with a kidney-shaped hole 10-5, and the hinge plate 11-1 is connected with the push rod 10-3 through a pin shaft 11-2 and the kidney-shaped hole 10-5, so that the push rod 10-3 is driven to rotate by the air cylinder, the rotating shaft 10-1 and the fluted disc 10-2 are driven to rotate, and the sliding block 6 moves along the radial direction of the chuck body 4. Because the distance between the cylinder piston and the rotating shaft 10-1 is constant all the time and the equal force arm is kept, when the cylinder works, the air pressure is the same and the moment is kept constant, the clamping force is stable all the time in the clamping process of the clamping jaws and is not influenced by the pipe diameter of the pipe.

The transmission mechanism 10 further comprises a synchronous ring 10-6 sleeved on the inner sleeve 8, the outer peripheral surface of the synchronous ring 10-6 is symmetrically provided with a rotating groove 10-7 matched with the synchronous pin 10-4, and the push rod 10-3 drives the synchronous ring 10-6 to rotate through the synchronous pin 10-4, so that linkage of a group of transmission mechanisms 10 is realized.

The outer lane rear end of bearing 2 is fixed to be equipped with the cover and establishes casing 12 outside driven ring gear 5, and casing 12 is last to be fixed be equipped with driven ring gear 5 matched with speed reducer 13, can directly link to each other with laser cutting machine, and it is more convenient to use, avoids the chuck internal arrangement to expose simultaneously, plays fine dustproof effect.

The chuck driving device drives the push rod 10-3 through the cylinder to drive the rotating shaft 10-1 fixedly connected with the push rod 10-3 to rotate, further realizes the rotation of the fluted disc 10-2 fixedly connected with the rotating shaft 10-1, and simultaneously drives the synchronizing ring 10-6 connected with the push rod 10-3 to rotate, thereby realizing the linkage of a group of transmission mechanisms 9, and the push rod 10-3, the fluted disc 10-2 and the synchronizing ring 10-6 are arranged to replace the existing transmission disc with the fluted disc and the carrier planet gear, so that the chuck driving device has the advantages of ensuring stable clamping force, small frictional resistance and high synchronism, simplifying the structure and reducing the production and manufacturing cost.

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 disc drive apparatus, characterized in that: the chuck is characterized by comprising two groups of transmission mechanisms (10) and a power source (11), wherein each group of transmission mechanisms (10) comprises a rotating shaft (10-1) symmetrically arranged along the circumferential direction of the chuck, and a fluted disc (10-2) and a push rod (10-3) which are coaxially and fixedly arranged on the rotating shaft (10-1); the transmission mechanism (10) further comprises a synchronous ring (10-6), the synchronous ring (10-6) is connected with one end of the push rod (10-3), and the power source (11) is suitable for driving the push rod (10-3) to drive the synchronous ring (10-6) and the rotating shaft (10-1) to rotate.

2. A chuck drive apparatus according to claim 1, further comprising: the power source (11) is a cylinder.

3. A chuck drive apparatus according to claim 1, further comprising: the fluted disc (10-2) is of a fan-shaped structure.

4. A chuck drive apparatus according to claim 2, further comprising: one end of the push rod (10-3) is rotatably provided with a synchronizing pin (10-4), the peripheral surface of the synchronizing ring (10-6) is symmetrically provided with rotating grooves (10-7) matched with the synchronizing pin (10-4), and the push rod (10-3) drives the synchronizing ring (10-6) to rotate through the synchronizing pin (10-4).

5. A chuck drive apparatus according to claim 4, further comprising: a hinge plate (11-1) is fixedly arranged on a piston rod of the air cylinder, a pin shaft (11-2) is rotatably arranged on the hinge plate (11-1), a waist-shaped hole (10-5) is formed in the other end of the push rod (10-3), and the hinge plate (11-1) is connected with the push rod (10-3) through the pin shaft (11-2) and the waist-shaped hole (10-5).

6. A chuck, characterized by: comprises a base (1) and a rotating body which is arranged in the base (1) and rotates around the base; a plurality of groups of sliding blocks (6) which slide along the radial direction of the rotating body are symmetrically arranged at the front end of the rotating body, and a jaw assembly (7) is fixedly arranged at the front end of each sliding block (6); the chuck driving device as claimed in any one of claims 1 to 5 is arranged in the rotating body, and a rack (6-1) matched with a fluted disc (10-2) is arranged on one side of the sliding block (6); and an air sealing disc device (3) is arranged at the rear end of the rotating body.

7. A chuck as in claim 6, wherein: the inner ring of the base (1) is provided with a bearing (2), and the rotating body is installed in the base (1) through the bearing (2).

8. A chuck as claimed in claim 7, wherein: the rotating body comprises a chuck body (4) and a driven gear ring (5) which are fixedly arranged at the front end and the rear end of an inner ring of the bearing (2) respectively; an inner sleeve (8) is fixedly arranged at the rear end of the inner ring of the chuck body (4), and a flange plate (9) sleeved on the inner sleeve (8) is fixedly arranged at the rear end of the driven gear ring (5); two ends of a rotating shaft (10-1) of the chuck driving device are respectively and rotatably connected with the chuck body (4) and the flange plate (9); the synchronous ring (10-6) is sleeved on the inner sleeve (8); the power source (11) is fixedly arranged at the rear end of the chuck body (4).

9. A chuck as in claim 8, wherein: the rear end of the outer ring of the bearing (2) is fixedly provided with a shell (12) which covers the driven gear ring (5), and the shell (12) is fixedly provided with a speed reducer (13) matched with the driven gear ring (5).