CN215199694U

CN215199694U - Pneumatic chuck

Info

Publication number: CN215199694U
Application number: CN202120796620.6U
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: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-12-17
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a pneumatic chuck belongs to chuck equipment. The clamping device comprises a base assembly, a clamping assembly and a guide assembly. The base assembly comprises a turntable and a connecting rod arranged in the middle of the turntable; the clamping assemblies are provided with a plurality of groups and distributed on the turntable; the clamping assembly comprises two groups of cylinders and clamping jaws, the clamping jaws are arranged on the rotary table and are in transmission connection with push rods of the cylinders respectively, the guide assembly comprises guide rings arranged at the end parts of the push rods, and two ends of each guide ring are fixed at the middle positions of the two push rods respectively and penetrate through a synchronous support of the connecting rod. The utility model discloses an adopt two cylinders to distribute and promote, rely on the guide ring to realize the direction and the location to the push rod of cylinder, fixed two flagpole for the push rod assembly methods with the synchronizing bracket simultaneously, realize the push rod synchronous motion of two cylinders, finally realize synchronous centre gripping. The utility model provides a guide structure guiding orientation is more accurate, and the centre gripping precision does not drift, and is easy to part processing, and the cost is lower.

Description

Pneumatic chuck

Technical Field

The utility model belongs to chuck equipment, especially a pneumatic chuck.

Background

The processing of pipe materials and section bars made of various metal materials widely adopts a professional laser pipe cutting machine or a plate pipe integrated machine. In the cutting process, the stability of the fixation of the pipe determines the cutting precision of the pipe, so that a user especially pays attention to the stability and reliability of the clamping force and the processing precision of a workpiece during pipe processing.

The existing pneumatic chuck generally adopts 2 cylinders to simultaneously push the integrated flange to realize synchronous clamping, the radial fit clearance of the flange plate is required to be higher, the fit clearance is large, the drift of the clamping accuracy of the clamping jaws is unstable, and the integrated flange part has higher requirements on processing and relatively higher cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model provides an air chuck to solve the problem that the background art relates.

The utility model provides a pneumatic chuck, include: the base assembly, the clamping assembly and the guide assembly.

The base assembly comprises a turntable and a connecting rod arranged in the middle of the turntable;

the clamping assemblies are provided with a plurality of groups and distributed on the turntable; the clamping assembly comprises two groups of cylinders and clamping jaws which are arranged on the turntable and are respectively in transmission connection with push rods of the cylinders,

and the guide assembly comprises guide rings arranged at the end parts of the push rods, and two ends of each guide ring are respectively fixed at the middle positions of the two push rods and penetrate through the synchronous supports of the connecting rods.

Preferably or optionally, the air chuck further comprises: the base is arranged on the base and used for driving the rotating assembly for rotating the turntable.

Preferably or optionally, the rotating assembly comprises: the base comprises a speed reducing motor arranged outside the base, a driving gear connected with the speed reducing motor, a driven gear meshed with the driving gear and having an annular cross section, a bearing connected with the driven gear, and a shell and a turntable which are connected with the inside of the bearing.

Preferably or optionally, the cylinder is mounted within the housing.

Preferably or optionally, the clamping assemblies are provided with two groups, and the clamping jaws of different clamping assemblies are distributed on the rotary table in a staggered manner.

Preferably or optionally, a curved connecting rod is arranged between the push rod and the jaw, the cross section of the curved connecting rod is in a shape of a doglegged shape, one end of the curved connecting rod is hinged to the jaw, the other end of the curved connecting rod is hinged to the push rod, and the middle part of the curved connecting rod is installed on the rotary table through a pin.

Preferably or optionally, the jaw is mounted on a linear guide of the turntable, the jaw comprising: the card is established on the straight line guide slot, and with curved connecting rod articulated sliding block is installed connecting block on the sliding block, and install clamping block on the connecting block.

Preferably or optionally, a plurality of inclined anti-slip grooves are arranged on the side surface of the clamping block.

Preferably or optionally, the synchronizing bracket is provided with a clamping groove, and an adjusting bolt penetrating through the clamping groove.

Beneficial effect, the utility model relates to a pneumatic chuck distributes through adopting two cylinders and promotes, relies on the guide ring to realize the direction and the location to the push rod of cylinder, fixes two flagpole for the push rod assembly methods with synchronous support simultaneously, realizes the push rod synchronous motion of two cylinders, finally realizes synchronous centre gripping. The utility model provides a guide structure guiding orientation is more accurate, and the centre gripping precision does not drift, and is easy to part processing, and the cost is lower.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of the middle clamping assembly and the guiding assembly of the present invention.

Fig. 4 is a schematic structural view of the middle clamping jaw of the present invention.

The reference signs are: the device comprises a rotary table 1, a connecting rod 2, a cylinder 3, a push rod 4, a jaw 5, a guide ring 6, a synchronous support 7, a base 8, a motor base 9, a driving gear 10, a driven gear 11, a bearing 12, a shell 13, a curved connecting rod 14, a linear guide groove 15, a sliding block 501, a connecting block 502, a clamping block 503, an anti-skidding groove 504, a clamping groove 701 and an adjusting bolt 702.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

Referring to fig. 1, an air chuck includes: the device comprises a rotary table 1, a connecting rod 2, a cylinder 3, a push rod 4, a jaw 5, a guide ring 6, a synchronous support 7, a base 8, a motor base 9, a driving gear 10, a driven gear 11, a bearing 12, a shell 13, a curved connecting rod 14, a linear guide groove 15, a sliding block 501, a connecting block 502, a clamping block 503, an anti-skidding groove 504, a clamping groove 701 and an adjusting bolt 702.

The base assembly comprises a base 8, a shell arranged on the base 8, a turntable 1 arranged at the top of the shell, and a rotating assembly arranged on the base 8 and used for driving the turntable 1 to rotate; the connecting rod 2 mounted in the middle of the rotating disk 1 is located inside the housing 13. The centre gripping subassembly is including installing two sets of cylinders 3 in the casing 13 set up on the carousel 1, respectively with jack catch 5 that the push rod 4 transmission of cylinder 3 is connected, be provided with bent type connecting rod 14 between push rod 4 and the jack catch 5, bent type connecting rod 14's cross-sectional shape is "doglegged" shape, and its one end is articulated with jack catch 5, and the other end is articulated with push rod 4, and its middle part is installed on carousel 1 through the pin. The clamping components are arranged in two groups and distributed on the rotary table 1, and clamping claws 5 at the top of the clamping components form a rectangular frame on the upper part of the rotary table 1. The guide assembly comprises a guide ring 6 arranged at the end part of the push rod 4, and two ends of the guide ring are respectively fixed at the middle positions of the two push rods 4 and penetrate through a synchronous bracket 7 of the connecting rod 2. The push rod 4 is pushed to move forwards through the air cylinder 3, then the curved connecting rod 14 forces the pin to rotate, and therefore the clamping jaw 5 is pulled to move towards the central axis along the linear guide groove 15, and the clamping effect on the pipe is achieved. In the embodiment, the guide ring 6 is adopted to guide and position the push rod 4 of the cylinder 3, so that the accuracy of the motion track of the push rod 4 is ensured; in addition, the two flagpole push rods 4 are fixed in an assembling mode through the synchronous support 7, so that the push rods 4 of the two cylinders 3 move synchronously, and synchronous clamping is finally realized.

In a further embodiment, the rotating assembly comprises: the motor base 9 is arranged outside the base 8, the speed reducing motor is installed on the motor base 9, the driving gear 10 is connected with the speed reducing motor, the driven gear 11 is meshed with the driving gear 10 and is annular in cross section, the bearing 12 is connected with the driven gear 11, and the shell 13 and the rotary table 1 are connected with the inside of the bearing 12. The driving gear 10 and the driven gear 11 are driven to move through the speed reduction motor, so that the shell and the turntable 1 rotate along the axial direction, and the requirements of different processes on the diversity of the pneumatic chuck are met. In addition, the base 8 is kept stationary at all times due to the bearings 12 provided between the housing and the frame.

In a further embodiment, the clamping assemblies are provided in two groups, the clamping jaws 5 of different clamping assemblies being distributed alternately on the turntable 1. Realize the centre gripping and unclamping to tubular product through the position of adjustment jack catch 5, when jack catch 5 crisscross distribution, even when tubular product diameter is less than the length of jack catch 5, also can effectual realization tubular product fixed action.

In a further embodiment, the jaws 5 are mounted on linear guide slots 15 of the turntable 1, the jaws 5 comprising: the sliding block 501 is clamped on the linear guide groove 15 and hinged with the curved connecting rod 14, the connecting block 502 is installed on the sliding block 501, and the clamping block 503 is installed on the connecting block 502. A plurality of inclined anti-slip grooves 504 are arranged on the side surface of the clamping block 503. Due to the anti-slip groove 504, friction forces in different directions can be generated, so that the acting force between the pipe and the clamping block 503 is further enhanced, and the stability of the fixation of the pipe is improved.

In a further embodiment, the synchronizing bracket 7 is provided with a clamping groove 701, and an adjusting bolt 702 penetrating through the clamping groove 701 is provided. The installation and the dismantlement of synchronous support 7 are conveniently realized.

In order to facilitate understanding of the technical scheme of the air chuck, the working principle of the air chuck is briefly explained: the push rod 4 is pushed to move forwards through the air cylinder 3, then the curved connecting rod 14 forces the pin to rotate, and therefore the clamping jaw 5 is pulled to move towards the central axis along the linear guide groove 15, and the clamping effect on the pipe is achieved. In the embodiment, the guide ring 6 is adopted to guide and position the push rod 4 of the cylinder 3, so that the accuracy of the motion track of the push rod 4 is ensured; in addition, the two flagpole push rods 4 are fixed in an assembling mode through the synchronous support 7, synchronous movement of the push rods 4 of the two cylinders 3 is achieved, and synchronous clamping is finally achieved. Then, the driving gear 10 and the driven gear 11 are driven to move through the speed reduction motor, so that the shell and the turntable 1 rotate along the axial direction, and the requirements of different processes on the diversity of the pneumatic chuck are met.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. A pneumatic chuck, comprising:

2. The air chuck according to claim 1, further comprising: the base is arranged on the base and used for driving the rotating assembly for rotating the turntable.

3. The air chuck according to claim 2, wherein the rotating assembly comprises: the base comprises a speed reducing motor arranged outside the base, a driving gear connected with the speed reducing motor, a driven gear meshed with the driving gear and having an annular cross section, a bearing connected with the driven gear, and a shell and a turntable which are connected with the inside of the bearing.

4. The air chuck according to claim 3, wherein the air cylinder is mounted within the housing.

5. The air chuck according to claim 1, wherein the clamping assemblies are provided in two groups, the jaws of different clamping assemblies being staggered on the turntable.

6. The air chuck according to claim 1, wherein a curved link is provided between the push rod and the jaws, the curved link having a cross-sectional shape of "dogleg", one end of the curved link being hinged to the jaws, the other end of the curved link being hinged to the push rod, and the middle of the curved link being mounted to the turntable by a pin.

7. The air chuck according to claim 6, wherein the jaws are mounted on a linear guide of the turntable, the jaws comprising: the card is established on the straight line guide slot, and with curved connecting rod articulated sliding block is installed connecting block on the sliding block, and install clamping block on the connecting block.

8. The air chuck according to claim 7, wherein the clamping blocks are provided with a plurality of inclined anti-slip grooves on the side surfaces thereof.

9. The air chuck according to claim 1, wherein the synchronizing bracket is provided with a clamping groove and an adjusting bolt extending through the clamping groove.