CN212734218U

CN212734218U - Four-jaw chuck of high accuracy location

Info

Publication number: CN212734218U
Application number: CN202020861765.5U
Authority: CN
Inventors: 胡峰; 殷锋; 陈西
Original assignee: Wuxi Weiyifa Precision Machinery Co ltd
Current assignee: Wuxi Weiyifa Precision Machinery Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-03-19
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a four-jaw chuck of high accuracy location, which comprises a disc body, evenly distributed is provided with four recesses in the disk body, four the recess all is 90 position settings between two liang, and all nested sliding connection has the chucking piece in four recesses, four the surface both sides of chucking piece all are provided with the draw-in groove, four the equal fixedly connected with in inner wall both sides of recess and the nested complex fixture block of draw-in groove looks, just be located four recess below positions in the disk body and all be provided with movable groove, four all be provided with adjusting screw, four in the movable groove adjusting screw's one end all is provided with the bolt hole. The utility model has the advantages of simple overall structure, easy and simple to handle drives the chucking piece through adjusting screw and removes and can realize convenient chucking work, through the detachable convenient centring means who sets up, can realize quick centering work, and the regulation chucking operation of cooperation chucking block structure, clamping workpiece that can rapid stabilization, overall structure have fine practicality.

Description

Four-jaw chuck of high accuracy location

Technical Field

The utility model relates to a four-jaw chuck of high accuracy location belongs to auto parts processing technology field.

Background

The four-jaw chuck is a four-jaw independent chuck, can be used for clamping irregular workpieces, and has wide application, for example, the four-jaw chuck is used for producing automobile parts, and along with the development of the technology, the four-jaw chuck also has certain requirements on the precision positioning.

Some current four-jaw chucks lack the structure that directly can center more, when being directed at some special work pieces, often be earlier the centre gripping after, press from both sides tight through special instrument and rotate again and find the center, such operation mode need not stop rotates the chuck, need carry out the chucking to the jack catch of different positions simultaneously, and operating procedure is numerous and diverse, wastes time and energy, very big influence production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-jaw chuck of high accuracy location to the defect that prior art exists.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a four-jaw chuck with high-precision positioning, which comprises a chuck body,

four grooves are uniformly distributed in the disc body, the four grooves are arranged at 90 degrees between every two grooves, clamping blocks are nested and slidably connected in the four grooves, clamping grooves are formed in two sides of the outer surface of each clamping block, clamping blocks nested and matched with the clamping grooves are fixedly connected on two sides of the inner wall of each groove, movable grooves are formed in the disc body and below the four grooves, adjusting screws are arranged in the four movable grooves, bolt holes are formed in one ends of the four adjusting screws, connecting grooves are formed in the outer surface of the disc body and between two adjacent grooves, the four connecting grooves and two adjacent grooves are arranged at included angles of 45 degrees, connecting blocks are nested in the four connecting grooves, inner grooves are formed in the four connecting blocks, and moving blocks are arranged in the four inner grooves, and springs are connected between one sides of the inner walls of the four inner grooves and one sides of the outer surfaces of the four moving blocks, a limiting block is fixedly connected to one side, away from the springs, of the outer surface of each moving block, notches are formed in the tops of the four connecting blocks, rotating blocks are arranged in the notches, and connecting frames are fixedly connected to one sides of the outer surfaces of the rotating blocks.

Furthermore, communicating grooves are formed in the positions, communicated with the four movable grooves, of the disc body, and positioning blocks with tops matched with the adjusting screws in a nested mode are arranged in the four communicating grooves.

Furthermore, the bottom ends of the four clamping blocks are provided with convex teeth meshed with the adjusting screw rods.

Furthermore, arc-shaped limiting grooves which are matched with the limiting blocks in a nested mode are formed in one side of the inner walls of the four connecting grooves.

Furthermore, the four rotating blocks are correspondingly and rotatably connected with the four notches through rotating shafts.

Furthermore, four one end of the connecting frame, which is far away from the rotating block, is provided with arc centering blocks which are matched with each other.

The utility model has the advantages that:

the utility model discloses an adjusting screw that sets up drives the chucking piece and removes, through mutually supporting of four chucking pieces, can realize carrying out the purpose of stabilizing the chucking with irregular structure, structural connection is stable, and is easy and simple to handle, adjusting position is accurate, connecting block structure through setting up, not only can stably connect, also convenient to detach simultaneously, can not influence the normal use of chuck, simultaneously through the setting of centering block structure on the connecting block, can carry out accurate location operation, can realize stabilizing accurate centering chucking operation through setting up of adjusting chucking piece position cooperation centering piece, and the device has good practicality.

Drawings

FIG. 1 is a schematic view of the position structure of the adjusting screw of the present invention;

fig. 2 is a side view of the centering block position of the present invention;

FIG. 3 is a front view of the connecting block of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2 according to the present invention.

Description of the figures

1. A tray body; 2. a groove; 3. a clamping block; 4. a clamping block; 5. a card slot; 6. a movable groove; 7. adjusting the screw rod; 8. bolt holes; 9. a communicating groove; 10. positioning blocks; 11. a convex tooth; 12. connecting grooves; 13. connecting blocks; 14. an inner tank; 15. a moving block; 16. a spring; 17. a limiting block; 18. a limiting groove; 19. a recess; 20. rotating the block; 21. a rotating shaft; 22. a connecting frame; 23. and (4) a centering block.

Detailed Description

As shown in fig. 1 to 4, a four-jaw chuck with high precision positioning is provided, which comprises a chuck body 1, four grooves 2 are uniformly distributed in the chuck body 1, two of the four grooves 2 are arranged at 90 degrees, the four grooves 2 are all connected with clamping blocks 3 in a nested and sliding manner, the two sides of the outer surface of each of the four clamping blocks 3 are provided with clamping grooves 5, the two sides of the inner wall of each of the four grooves 2 are fixedly connected with clamping blocks 4 in nested fit with the clamping grooves 5, the positions of the inner surface of the chuck body 1 below the four grooves 2 are provided with movable grooves 6, the four movable grooves 6 are all provided with adjusting screws 7, one ends of the four adjusting screws 7 are provided with bolt holes 8, the positions of the outer surface of the chuck body 1 and between the two adjacent grooves 2 are provided with connecting grooves 12, and the four connecting grooves 12 and the two adjacent grooves 2 are arranged at 45-degree included angles, and all the connecting blocks 13 are arranged in the four connecting grooves 12 in an embedded mode, the four connecting blocks 13 are internally provided with inner grooves 14, the four inner grooves 14 are internally provided with moving blocks 15, springs 16 are arranged between one sides of the inner walls of the four inner grooves 14 and one sides of the outer surfaces of the four moving blocks 15 in a connected mode, the four moving blocks 15 are fixedly connected with limiting blocks 17 on one sides of the outer surfaces of the moving blocks 15 far away from the springs 16, notches 19 are formed in the tops of the connecting blocks 13 on one sides, rotating blocks 20 are arranged in the notches 19, and connecting frames 22 are fixedly connected on one sides of the outer surfaces of the four rotating blocks 20.

When in use, the four connecting blocks 13 are correspondingly inserted into the four connecting grooves 12, the limiting blocks 17 are extruded through the inner walls of the connecting grooves 12, the limiting blocks 17 drive the moving blocks 15 to compress the springs 16, after the connecting blocks 13 are clamped into the connecting grooves 12, the limiting blocks 17 are reset by the springs 16 to be automatically clamped into the limiting grooves 18, so that the connecting blocks 13 are stably connected in structure, the automobile parts to be processed are placed in the middle of the chuck to be clamped, the automobile parts are respectively inserted into the four bolt holes 8 by using a spanner, the adjusting screw 7 is rotated, the adjusting screw 7 drives the clamping blocks 3 to move, the workpieces can be roughly clamped in advance by matching of the four clamping blocks 3, the four connecting frames 22 are rotated, the centering blocks 23 on the four connecting frames 22 are gathered together, the arc-shaped position in the middle of the centering block 23 is the center of the workpieces, and the adjusting screws 7 in different positions are respectively, the clamping blocks 3 are matched with each other, the positioning work can be finished by corresponding the centers of the workpieces and the centering block 23, and the fixing work can be finished by screwing the clamping blocks 3.

In the further scheme, the position that is linked together with four movable slots 6 in the disk body 1 all is provided with the intercommunication groove 9, four all be provided with the locating piece 10 that top and adjusting screw 7 looks scarf joint in the intercommunication groove 9, can guarantee through the setting of locating piece 10 that adjusting screw 7 can carry out stable location, guaranteed that the structure can stably carry out chucking centre gripping work.

In the further scheme, four the bottom of chucking piece 3 all is provided with the dogtooth 11 with adjusting screw 7 engaged with, can cooperate the work with adjusting screw 7 through setting up of dogtooth 11, can carry out accurate location regulation work, makes things convenient for the stable centre gripping of structure.

In the further scheme, four inner wall one side of spread groove 12 all is provided with the arc spacing groove 18 of the nested complex mutually with stopper 17, can make the connection that connecting block 13 can be stable in spread groove 12 through setting up of structure, conveniently carries out stable centering work, and the structure also conveniently dismantles simultaneously, connects stably easy and simple to handle.

In the further scheme, four rotating blocks 20 are connected with four notches 19 in a rotating mode through rotating shafts 21, the structure of the connecting frame 22 can be conveniently rotated through the arrangement of the structure, and quick centering work can be conducted under the condition that the structure clamping is not affected.

In the further scheme, four the one end that turning block 20 was kept away from to link 22 all is provided with the arc centering piece 23 of mutually supporting, is curved centering piece 23 through the setting, can carry out quick accurate centering work, can conveniently adjust the position of centre gripping work piece and carry out operation production, has fine practicality effect.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A four-jaw chuck with high-precision positioning comprises a chuck body and is characterized in that,

2. The high-precision positioning four-jaw chuck according to claim 1, wherein the communicating grooves are formed in the positions of the four movable grooves in the chuck body, and the positioning blocks with tops nested and matched with the adjusting screws are arranged in the four communicating grooves.

3. The four-jaw chuck with high precision positioning according to claim 1, wherein the bottom ends of the four clamping blocks are provided with convex teeth engaged with the adjusting screw.

4. The four-jaw chuck with high precision positioning according to claim 1, wherein one side of the inner wall of each of the four connecting grooves is provided with an arc-shaped limiting groove which is in nesting fit with the limiting block.

5. The four-jaw chuck according to claim 1, wherein each of the four rotating blocks is rotatably connected with the four notches by a rotating shaft.

6. The four-jaw chuck with high precision positioning according to claim 1, wherein the four connecting frames are provided with arc centering blocks which are matched with each other at the ends far away from the rotating block.