CN215393270U

CN215393270U - Chuck driving device and chuck

Info

Publication number: CN215393270U
Application number: CN202120767700.9U
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: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-01-04
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a chuck driving device and a chuck, wherein the chuck driving device comprises two groups of transmission devices and a power source, each group of transmission devices comprises a synchronous ring and rotating shafts symmetrically arranged along the circumferential direction of the chuck, and a connecting rod and a push rod are fixedly arranged on each rotating shaft; the synchronizer ring is connected with one end of the push rod, the power source is connected with the other end of the push rod, and the connecting rod is suitable for driving the sliding block of the chuck to slide. The chuck driving device provided by the utility model cancels the traditional tooth transmission structure, ensures stable clamping force and high synchronism, has a simpler structure, and reduces the risk of clamping stagnation caused by foreign matters entering the interior.

Description

Chuck driving device and chuck

Technical Field

The utility model relates to the field of chucks, in particular to a chuck driving device and a 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 traditional chuck structure drives the rotating disc with the tooth structure to rotate through a power source so as to drive the tooth transmission device matched with the rotating disc to move, and then the sliding block assembly matched with the tooth transmission device to move is separated or combined. Because a large amount of chips are generated in the cutting process, the chips are easy to enter the inside of the chuck in long-term use, so that the transmission is blocked, and the normal use is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chuck driving device and a chuck aiming at the defects in the prior art, the chuck driving device cancels the traditional tooth transmission structure, ensures stable clamping force and high synchronism, has a simpler structure and reduces the risk of clamping stagnation caused by the fact that foreign matters enter the inside.

The technical scheme for realizing the aim of the utility model is as follows:

a chuck driving device comprises two groups of transmission devices and a power source, wherein each group of transmission devices comprises a synchronous ring and rotating shafts symmetrically arranged along the circumferential direction of a chuck, and a connecting rod and a push rod are fixedly arranged on each rotating shaft; the synchronizer ring is connected with one end of the push rod, the power source is connected with the other end of the push rod, and the connecting rod is suitable for driving the sliding block of the chuck to slide.

Furthermore, the end, far away from the axis of rotation, of the connecting rod is provided with a rotating part, and the rotating part is movably connected with the sliding block assembly of the chuck, so that the sliding block assembly is driven by the connecting rod to slide.

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 is connected with the synchronizing ring through the synchronizing pin, so that the push rod pushes the synchronizing ring to rotate.

Furthermore, the output end of the power source is fixedly provided with a hinge plate, a pin shaft is arranged on the hinge plate in a rotating mode, the other end of the push rod is provided with a waist-shaped hole, and the hinge plate is connected with the push rod through the pin shaft and the waist-shaped hole, so that the power source drives the push rod to rotate.

A chuck comprises a base and a rotating body which is arranged in the base and rotates around the base, wherein the inside of the rotating body is provided with the chuck driving device; the front end of the rotating body is provided with a jaw component which makes a mutually combined or separated motion.

Further, the jack catch subassembly includes four double-deck jack catchs, four sliding block subassemblies and two cushions, four sliding block subassemblies are along the circumference evenly distributed of rotatory body, and wherein two double-deck jack catchs are installed respectively on two sliding block subassemblies that the symmetry set up through the cushion, and two other double-deck jack catchs are installed respectively on the sliding block subassembly that two other symmetries set up, distance between two jack catchs of double-deck jack catch is greater than the thickness of single jack catch. When the jack catch does the motion that closes, the jack catch of a pair of double-deck jack catch just inserts in the jack catch clearance of another pair of double-deck jack catch to realize eight points four layers crisscross centre gripping, make the processing position centre gripping of tubular product more stable, thereby guarantee the machining precision.

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

Further, the rotating body comprises a chuck body, an inner sleeve, a flange plate and a driven gear ring, the chuck body and the driven gear ring are respectively and fixedly connected with the inner ring of the bearing, the inner sleeve is fixedly connected with the chuck body, and the flange plate is sleeved on the inner sleeve and is fixedly connected with the driven gear ring; two ends of a rotating shaft of the chuck 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, the outer lane rear end of bearing is fixed to be equipped with the cover and establishes the casing outside driven ring gear, fixed being equipped with on the casing with driven ring gear matched with speed reducer, can directly link to each other with laser cutting machine, it is more convenient to use, avoids the inside device of chuck to expose simultaneously, plays fine dustproof effect.

Furthermore, a microswitch is fixedly mounted on the flange plate, and when the position of a push rod of the transmission device reaches the limit, the microswitch is started to feed back a power source immediately, so that the transmission safety is improved.

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

(1) the chuck driving device drives the push rod through the power source to drive the rotating shaft fixedly connected with the push rod to rotate, so that the connecting rod fixedly connected with the rotating shaft rotates, and simultaneously drives the synchronizing ring connected with the push rod to rotate, thereby realizing the linkage of a group of transmission devices. Traditional tooth transmission structure has been cancelled, and the structure is more succinct when guaranteeing that clamping-force is stable, the synchronism is high, reduces the foreign matter and gets into inside risk that causes the jamming.

(2) The chuck driving device is characterized in that a rotating part is arranged at one end, away from a rotating shaft, of a connecting rod, and the rotating part is movably connected with a sliding block assembly of a chuck, so that the connecting rod drives the sliding block assembly to slide.

(3) The chuck driving device of the utility model is characterized in that the outer peripheral surface of the synchronizing ring is symmetrically provided with the rotating grooves, the synchronizing ring is connected with the push rod by the synchronizing pin, and the synchronizing ring is driven to rotate by the push rod, so that a group of transmission devices realize linkage.

(4) The output end of the power source of the chuck driving device is fixedly provided with the hinge plate, and the hinge plate is connected with the push rod through the pin shaft and the waist-shaped hole, so that the power source drives the push rod to move.

(5) The chuck adopts the chuck driving device, the jaw assembly is driven to move by the chuck driving device, the distance between a power source of the driving device and the rotating shaft is always kept unchanged in the process, and the generated torque is always unchanged when the power source outputs the same force during working, so that the clamping force generated when the jaw assemblies do the corresponding movement is constant, the size of the clamping force is not influenced by the pipe diameter of the pipe, the clamping force is more stable, the chuck with the structure is simpler, and the manufacturing cost is low. The whole driving device cancels a tooth transmission structure, and avoids the clamping stagnation caused by the entering of chips in the use process of the chuck.

(6) The double-layer clamping jaw is provided with the double-layer clamping jaws, and the distance between the two clamping jaws of the double-layer clamping jaw is larger than the thickness of a single clamping jaw. When the jack catch does the motion that cooperatees, the jack catch of a pair of double-deck jack catch just inserts in the jack catch clearance of another pair of double-deck jack catch to realize eight points four layers crisscross centre gripping, make the processing position centre gripping of tubular product more stable, guarantee the machining precision.

(7) The chuck is preassembled with the speed reducer, can be directly connected with the laser cutting machine, is more convenient to use, and meanwhile, the device in the chuck is prevented from being exposed, so that a good dustproof effect is achieved.

(8) The chuck of the utility model improves the transmission safety of the chuck by arranging the microswitch to monitor the transmission position of the push rod.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a perspective view of a chuck according to the present invention;

FIG. 2 is a schematic view of a chuck driving device according to the present invention;

FIG. 3 is a schematic view of the internal structure of the chuck of the present invention;

FIG. 4 is a schematic structural view of a chuck body according to the present invention;

fig. 5 is a view showing an installation structure of the connecting rod and sliding block assembly of the present invention.

The reference numbers in the drawings are:

the automatic clamping device comprises a base 1, a bearing 2, a chuck body 3, a mounting groove 3-1, a through groove 3-2, a driven gear ring 4, a clamping jaw assembly 5, a double-layer clamping jaw 5-1, a sliding block assembly 5-2, a groove 5-2-1, a cushion block 5-3, an inner sleeve 6, a flange plate 7, a transmission device 8, a rotating shaft 8-1, a connecting rod 8-2, a rotating part 8-2-1, a push rod 8-3, a synchronizing pin 8-3-1, a kidney-shaped hole 8-3-2, a synchronizing ring 8-4, a rotating groove 8-4-1, a power source 9, a hinge plate 9-1, a pin shaft 9-2, a microswitch 10, an air-tight sealing disc device 11, 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 5, the chuck of the present embodiment includes a base 1 and a rotating body, wherein a bearing 2 is disposed on an inner ring of the base 1, and the rotating body is mounted on the base 1 through the bearing 2, so that the rotating body rotates along an axial direction of the chuck. This internal chuck drive arrangement that is equipped with rotates, the chuck drive arrangement of this embodiment has cancelled traditional tooth transmission structure, and the structure is more succinct when guaranteeing that chuck clamping-force is stable, the synchronism is high, and greatly reduced foreign matter gets into inside risk that causes the jamming.

The rotating body comprises a chuck body 3 and a driven gear ring 4 which are fixedly arranged at the front end and the rear end of an inner ring of the bearing 2 respectively. The front end of the chuck body 3 is provided with a jaw component 5, and the jaw component 5 comprises four double-layer jaws 5-1, four sliding block components 5-2 and two cushion blocks 5-3. Four mounting grooves 3-1 are uniformly distributed at the front end of the chuck body 3, through grooves 3-2 are arranged on the mounting grooves 3-1, and a sliding block assembly 5-2 is slidably mounted in the mounting grooves 3-1. Two double-layer clamping jaws 5-1 are fixedly arranged on the left sliding block assembly 5-2 and the right sliding block assembly 5-2 through two cushion blocks 5-3 respectively, and the other two double-layer clamping jaws 5-1 are fixedly arranged on the upper sliding block assembly 5-2 and the lower sliding block assembly 5-2 respectively. The distance between two clamping jaws of the double-layer clamping jaw 5-1 is larger than the thickness of a single clamping jaw, when the clamping jaws do the matched motion, the clamping jaws of the pair of double-layer clamping jaws 5-1 arranged up and down are just inserted into the clamping jaw gap of the pair of double-layer clamping jaws 5-1 arranged left and right, so that eight-point four-layer staggered clamping of the clamping jaws is realized, the clamping of the processing part of the pipe is more stable, and the processing precision is ensured. An inner sleeve 6 is fixedly arranged at the rear end of the inner ring of the chuck body 3, and a flange plate 7 sleeved on the inner sleeve 6 is fixedly arranged at the rear end of the driven gear ring 4, so that the chuck driving device is convenient to mount.

The chuck driving device comprises transmission devices 8 and a power source 9, wherein the transmission devices 8 are provided with two groups, and each group of transmission devices 8 comprises a rotating shaft 8-1, a connecting rod 8-2, a push rod 8-3 and a synchronous ring 8-4. Two rotating shafts 8-1 are arranged and symmetrically arranged along the circumferential direction of the chuck, and two ends of each rotating shaft 8-1 are respectively and rotatably connected with the chuck body 3 and the flange 7. One end of the connecting rod 8-2 is fixedly connected with the rotating shaft 8-1, the other end of the connecting rod is provided with a rotating part 8-2-1, the back of the sliding block component 5-2 is provided with a groove 5-2-1, the connecting rod 8-2 penetrates through the through groove 3-2, and the rotating part 8-2-1 is matched with the groove 5-2-1, so that the connecting rod 8-2 drives the sliding block component 5-2 to slide along the radial direction of the chuck body 3. The push rod 8-3 adopts a fish tail type structure, the middle part is fixedly connected with the rotating shaft 8-1, one end is rotatably provided with a synchronous pin 8-3-1, and the other end is provided with a kidney-shaped hole 8-3-2. The synchronizing ring 8-4 is sleeved on the inner sleeve 6, the outer peripheral surface is symmetrically provided with rotating grooves 8-4-1 matched with the synchronizing pins 8-3-1, and the push rod 8-3 drives the synchronizing ring 8-4 to rotate through the synchronizing pins 8-3-1, so that the linkage of a group of transmission devices 8 is realized. One side of the push rod 8-3 is provided with a microswitch 10 fixedly arranged on the flange 7, and when the push rod 8-3 is in place, the microswitch 10 is started to feed back a power source immediately, so that the transmission safety is improved.

The power source 9 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 3. The rear end of the rotating body is provided with an air sealing disc device 11 to realize the function of rotary sealing, the air cylinder is connected with the air sealing disc device 11 through an air pipe, and the air sealing disc device 11 is communicated with an external air source through the air pipe. A hinge plate 9-1 is fixedly arranged on a piston rod of the air cylinder, a pin shaft 9-2 is rotatably arranged on the hinge plate 9-1, and the hinge plate 9-1 is connected with a push rod 8-3 through the pin shaft 9-2 and a waist-shaped hole 8-3-2, so that the air cylinder drives the push rod 8-3 to rotate, the rotating shaft 8-1 and a connecting rod 8-2 are further driven to rotate, and the sliding block assembly 5-2 moves along the radial direction of the chuck body 3. Because the distance between the cylinder piston and the rotating shaft 8-1 is constant all the time, the equal force arm is kept, when the cylinder works, the air pressure is the same, and the moment is kept constant, so that 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 outer lane rear end of bearing 2 is fixed to be equipped with the cover and establishes casing 12 outside driven ring gear 4, and casing 12 is last to be fixed be equipped with driven ring gear 4 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 8-3 through the cylinder to drive the rotating shaft 8-1 fixedly connected with the push rod 8-3 to rotate, so that the connecting rod 8-2 fixedly connected with the rotating shaft 8-1 rotates, and simultaneously drives the synchronizing ring 8-4 connected with the push rod 8-3 to rotate, thereby realizing the linkage of a group of transmission devices 8. The chuck driving device of this embodiment has cancelled traditional tooth transmission structure, and the structure is more succinct when guaranteeing that chuck clamping-force is stable, the synchronism is high, and greatly reduced foreign matter gets into inside risk that causes the jamming.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc drive apparatus, characterized in that: the automatic chuck-rotating device comprises two groups of transmission devices (8) and a power source (9), wherein each group of transmission devices (8) comprises a synchronous ring (8-4) and rotating shafts (8-1) symmetrically arranged along the circumferential direction of a chuck, and a connecting rod (8-2) and a push rod (8-3) are fixedly arranged on each rotating shaft (8-1); the synchronous ring (8-4) is connected with one end of the push rod (8-3), the power source (9) is connected with the other end of the push rod (8-3), the connecting rod (8-2) is suitable for driving a sliding block of the chuck to slide, and a rotating part (8-2-1) is arranged at one end, far away from the rotating shaft (8-1), of the connecting rod (8-2).

2. A chuck drive apparatus according to claim 1, further comprising: one end of the push rod (8-3) is rotatably provided with a synchronizing pin (8-3-1), the peripheral surface of the synchronizing ring (8-4) is symmetrically provided with rotating grooves (8-4-1) matched with the synchronizing pin (8-3-1), and the push rod (8-3) is connected with the synchronizing ring (8-4) through the synchronizing pin (8-3-1).

3. A chuck drive apparatus according to claim 1, further comprising: the output end of the power source (9) is fixedly provided with a hinge plate (9-1), the hinge plate (9-1) is rotatably provided with a pin shaft (9-2), the other end of the push rod (8-3) is provided with a waist-shaped hole (8-3-2), and the hinge plate (9-1) is connected with the push rod (8-3) through the pin shaft (9-2) and the waist-shaped hole (8-3-2).

4. A chuck, characterized by: comprises a base (1) and a rotating body which is arranged in the base (1) and rotates around the base, wherein a chuck driving device as claimed in any one of claims 1 to 3 is arranged in the rotating body; the front end of the rotating body is provided with a jaw component (5) which moves in a mutually-combined or mutually-separated mode.

5. A chuck as in claim 4, wherein: the clamping jaw assembly (5) comprises four double-layer clamping jaws (5-1), four sliding block assemblies (5-2) and two cushion blocks (5-3), wherein the four sliding block assemblies (5-2) are uniformly distributed along the circumferential direction of the rotating body, the two double-layer clamping jaws (5-1) are respectively installed on the two sliding block assemblies (5-2) which are symmetrically arranged through the cushion blocks (5-3), the other two double-layer clamping jaws (5-1) are respectively installed on the other two sliding block assemblies (5-2) which are symmetrically arranged, and the distance between the two clamping jaws of the double-layer clamping jaws (5-1) is larger than the thickness of a single clamping jaw.

6. A chuck as in claim 4, 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).

7. A chuck as in claim 6, wherein: the rotary body comprises a chuck body (3), a driven gear ring (4), an inner sleeve (6) and a flange plate (7), the chuck body (3) and the driven gear ring (4) are respectively and fixedly connected with an inner ring of the bearing (2), the inner sleeve (6) is fixedly connected with the chuck body (3), and the flange plate (7) is sleeved on the inner sleeve (6) and fixedly connected with the driven gear ring (4); two ends of a rotating shaft (8-1) of the chuck driving device are respectively and rotatably connected with the chuck body (3) and the flange plate (7); the synchronous ring (8-4) is sleeved on the inner sleeve (6); the power source (9) is fixedly arranged at the rear end of the chuck body (3).

8. A chuck as claimed in claim 7, wherein: and a microswitch (10) is fixedly arranged on the flange plate (7).

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 (4), and the shell (12) is fixedly provided with a speed reducer (13) matched with the driven gear ring (4).