CN210755245U

CN210755245U - Three-jaw chuck

Info

Publication number: CN210755245U
Application number: CN201921828307.5U
Authority: CN
Inventors: 宫本超
Original assignee: Yantai Ruite Rubber Plastic Co ltd
Current assignee: Yantai Ruite Rubber Plastic Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-16
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to the field of machining, a three-jaw chuck is disclosed, including disk body and jack catch, the jack catch is connected with square pole, and square pole sliding connection has a fixed plate, fixed plate fixedly connected with sand grip, square pole be equipped with sand grip matched with spout, be equipped with a plurality of shrinkage pools along its length direction on the sand grip, square pole be equipped with shrinkage pool matched with bolt I, bolt I and shrinkage pool threaded connection. The jack catch is connected with square pole, square pole and fixed plate sliding connection, and when fixed machined part, the fixed plate is kept away from square pole's terminal surface and is contradicted with the machined part surface, and the area of contradicting is great, and the machined part is comparatively stable man-hour adding. Through bolt I and shrinkage pool threaded connection for the rigidity of fixed plate can be convenient for fix a position the generation machined part of co-altitude according to the position of the height adjustment fixed plate of machined part simultaneously, makes the machined part comparatively stable when adding man-hour, is favorable to improving the machining precision.

Description

Three-jaw chuck

Technical Field

The utility model relates to the field of machining, in particular to three-jaw chuck.

Background

The three-jaw chuck is a machine tool accessory which clamps and positions a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body.

Chinese patent publication No. CN105033299A discloses a three-jaw chuck, which comprises a chuck body and movable jaws; three movable clamping jaws are circumferentially and uniformly distributed on the chuck body; one end of the movable clamping jaw, which is close to the center of the chuck body, is provided with a groove, and the groove is arranged along the direction parallel to the axis of the chuck body; the clamping jaw is characterized by further comprising a clamping jaw head fixed at one end, close to the center of the chuck body, of the movable clamping jaw, one side, close to the movable clamping jaw, of the clamping jaw head protrudes outwards to form a boss, and the boss is fixed in the groove. The clamping jaw head is arranged to clamp a workpiece, the movable clamping jaw can be continuously used only by replacing the clamping jaw head after the clamping jaw head is damaged, waste is reduced, and production cost is reduced.

The three-jaw chuck clamps and positions a workpiece through the movable clamping jaws, when the three-jaw chuck is used for machining a longer workpiece, the workpiece is clamped by the end parts of the movable clamping jaws, and the workpiece is easy to shift at one end position far away from the movable clamping jaws in the machining process, so that the precision of the machined workpiece is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-jaw chuck has the convenient advantage of fixing a position the machined part of co-altitude.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a three-jaw chuck, includes disk body and jack catch, the jack catch is connected with square pole, square pole sliding connection has the fixed plate, fixed plate fixedly connected with sand grip, square pole be equipped with sand grip matched with spout, be equipped with a plurality of shrinkage pools that distribute along its length direction on the sand grip, square pole be equipped with shrinkage pool matched with bolt I, bolt I and shrinkage pool threaded connection.

Through adopting above-mentioned technical scheme, the jack catch is connected with square pole, square pole and fixed plate sliding connection, and when fixed machined part, the fixed plate is kept away from the terminal surface and the machined part surface conflict of square pole, and the conflict area is great, and the machined part is comparatively stable man-hour adding. Through bolt I and shrinkage pool threaded connection for the rigidity of fixed plate can be convenient for fix a position the generation machined part of co-altitude according to the position of the height adjustment fixed plate of machined part simultaneously, makes the machined part comparatively stable when adding man-hour, is favorable to improving the machining precision.

Furthermore, the upper end of the fixing plate is slidably connected with a sliding block perpendicular to the moving direction of the fixing plate, the sliding block is in threaded connection with a threaded rod, the upper end of the fixing plate is rotatably connected with a transmission shaft, and the transmission shaft is fixedly connected with the threaded rod.

By adopting the technical scheme, the adjustable sliding block slides left and right by rotating the transmission shaft, so that the sliding block can clamp a workpiece conveniently. Through setting up the slider, the three-jaw chuck is pressing from both sides tight when fixing a position to the machined part, and the slider is contradicted with the up end of machined part, further presss from both sides tightly the machined part in vertical direction, is favorable to improving and presss from both sides tight effect.

Furthermore, the transmission shaft penetrates through the fixing plate and is connected with a knob.

Through adopting above-mentioned technical scheme, through setting up the knob, it is more convenient that people are pressing from both sides tight when fixing a position to the machined part.

Furthermore, the lower end face of the sliding block is connected with a rubber gasket.

Through adopting above-mentioned technical scheme, through setting up the rubber gasket, avoid the slider to produce mar or pit to the machined part up end when centre gripping machined part, guarantee the integrality of machined part up end.

Furthermore, one end of the fixing plate, which is far away from the square rod, is detachably connected with a plurality of clamping blocks.

Through adopting above-mentioned technical scheme, the clamp splice is contradicted with the machined part, the centre gripping machined part of being convenient for.

Further, the fixed plate lateral wall is equipped with a plurality of round holes, the clamp splice both ends are equipped with the bar shaped plate, be equipped with on the bar shaped plate with round hole matched with bolt II, bolt II and round hole threaded connection.

Through adopting above-mentioned technical scheme, bolt II on the strip shaped plate and the round hole threaded connection on the jack catch have guaranteed that the clamp splice can be dismantled with the jack catch, are convenient for change the clamp splice.

Furthermore, the end face, far away from the clamping jaw, of the clamping block is square or arc-shaped.

By adopting the technical scheme, when the outer wall of the workpiece is a plane or an arc surface, the clamping blocks are matched with the outer wall of the workpiece, and the clamping effect is better.

Furthermore, the bottom of the square rod is provided with a cylindrical convex block, the surface of the convex block is provided with external threads, the clamping jaw is provided with a screw hole matched with the convex block, and the convex block is in threaded connection with the screw hole.

Through adopting above-mentioned technical scheme, lug on the square pole and the screw threaded connection on the jack catch are convenient for dismantle and change square pole.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the fixing plate, the end face, far away from the square rod, of the fixing plate is abutted against the surface of the workpiece, the contact area is large, and the workpiece is stable during machining;

2. through the arrangement of the bolts I and the concave holes, the position of the fixing plate can be adjusted according to the height of the machined part, so that the machined parts with different heights can be conveniently positioned, and the machining precision can be improved;

3. through the setting of slider, the slider is contradicted with the up end of machined part, further presss from both sides tightly the machined part in vertical direction, is favorable to improving and presss from both sides tight effect.

Drawings

FIG. 1 is an overall schematic view of the embodiment;

FIG. 2 is a schematic view showing the connection between the slider and the fixing plate in the embodiment;

fig. 3 is a schematic view of the connection between the square rod and the jaw in the embodiment.

In the figure, 1, a disc body; 2. a claw; 3. a square rod; 4. a fixing plate; 5. a convex strip; 6. a chute; 7. concave holes; 8. a bolt I; 9. a slider; 10. a threaded rod; 11. a drive shaft; 12. a knob; 13. a rubber gasket; 14. a clamping block; 15. a strip plate; 16. a bolt II; 17. a bump; 18. and a screw hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

the utility model provides a three-jaw chuck, as shown in figure 1, includes disk body 1 and jack catch 2, jack catch 2 is connected with

square pole

3, and 3 sliding connection of square pole have fixed plate 4, and when fixed machined part, the terminal surface that square pole 3 was kept away from to fixed plate 4 contradicts with the machined part surface, and the conflict area is great, and the machined part is comparatively stable man-hour adding. 4 fixedly connected with sand grip 5 of fixed plate, square pole 3 is equipped with and sand grip 5 matched with spout 6, be equipped with a plurality of shrinkage pools 7 that distribute along its length direction on the sand grip 5, square pole 3 is equipped with and shrinkage pools 7 matched with bolt I8, bolt I8 and shrinkage pools 7 threaded connection, make the rigidity of fixed plate 4, can be according to the position of the height control fixed plate 4 of machined part simultaneously, be convenient for fix a position the generation machined part of co-altitude not, make the machined part add comparatively stable man-hour, be favorable to improving the machining precision.

As shown in figure 1, one end of the fixing plate 4, which is far away from the square rod 3, is detachably connected with a clamping block 14, and the clamping block 14 is abutted against a workpiece, so that the workpiece can be conveniently clamped. 4 lateral walls of fixed plate are equipped with a plurality of round holes, clamp splice 14 both ends are equipped with strip shaped plate 15, be equipped with on the strip shaped plate 15 with round hole matched with bolt II16, bolt II16 and round hole threaded connection, it can dismantle with jack catch 2 to have guaranteed clamp splice 14, be convenient for change clamp splice 14, the terminal surface that jack catch 2 was kept away from to clamp splice 14 is square or arc, when the outer wall of work piece was plane or arc, clamp splice 14 cooperateed with the work piece outer wall, the centre gripping effect is better.

As shown in fig. 1 and 2, the upper end of the fixing plate 4 is slidably connected with a sliding block 9 perpendicular to the moving direction of the fixing plate 4, when the three-jaw chuck clamps and positions a workpiece, the sliding block 9 abuts against the upper end face of the workpiece, the workpiece is further clamped in the vertical direction, and the clamping effect is improved. The lower end face of the sliding block 9 is connected with a rubber gasket 13, scratches or pits on the upper end face of a workpiece are avoided when the sliding block 9 clamps the workpiece, and the integrity of the upper end face of the workpiece is ensured. The slider 9 threaded connection has threaded rod 10, and the upper end of fixed plate 4 rotates and is connected with transmission shaft 11, transmission shaft 11 and threaded rod 10 fixed connection, and transmission shaft 11 passes fixed plate 4 and is connected with knob 12. The knob 12 is rotated, the knob 12 drives the transmission shaft 11 to rotate, the transmission shaft 11 drives the threaded rod 10 to rotate, the sliding block 9 is made to move, and then the sliding block 9 is adjusted to slide left and right, so that a workpiece is clamped conveniently.

As shown in figure 3, the bottom of the square rod 3 is provided with a cylindrical convex block 17, the surface of the convex block 17 is provided with an external thread, the clamping jaw 2 is provided with a screw hole 18 matched with the convex block 17, and the convex block 17 is in threaded connection with the screw hole 18, so that the square rod 3 is convenient to detach and replace.

The specific implementation process comprises the following steps: when fixed machined part, the terminal surface that square pole 3 was kept away from to fixed plate 4 contradicts with the machined part surface, screws up bolt I8 and shrinkage pool 7 threaded connection, and the rigidity of fixed plate 4, according to the position of the height adjustment fixed plate 4 of machined part, rotatory knob 12 makes slider 9 contradict with the machined part up end and presss from both sides tightly, is convenient for fix a position the not machined part of co-altitude for the machined part is comparatively stable man-hour, is favorable to improving the machining precision.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a three-jaw chuck, includes disk body (1) and jack catch (2), its characterized in that: jack catch (2) are connected with square pole (3), square pole (3) sliding connection has fixed plate (4), fixed plate (4) fixedly connected with sand grip (5), square pole (3) are equipped with spout (6) with sand grip (5) matched with, be equipped with a plurality of shrinkage pools (7) of distributing along its length direction on sand grip (5), square pole (3) are equipped with bolt I (8) with shrinkage pool (7) matched with, bolt I (8) and shrinkage pool (7) threaded connection.

2. A three-jaw chuck according to claim 1, wherein: fixed plate (4) upper end sliding connection has slider (9) perpendicular with fixed plate (4) direction of motion, slider (9) threaded connection has threaded rod (10), fixed plate (4) upper end rotates and is connected with transmission shaft (11), transmission shaft (11) and threaded rod (10) fixed connection.

3. A three-jaw chuck according to claim 2, wherein: the transmission shaft (11) penetrates through the fixing plate (4) and is connected with a knob (12).

4. A three-jaw chuck according to claim 2, wherein: the lower end face of the sliding block (9) is connected with a rubber gasket (13).

5. A three-jaw chuck according to claim 1, wherein: one end of the fixing plate (4) far away from the square rod (3) is detachably connected with a plurality of clamping blocks (14).

6. A three-jaw chuck according to claim 5, wherein: the fixed plate (4) lateral wall is equipped with a plurality of round holes, clamp splice (14) both ends are equipped with strip shaped plate (15), be equipped with on strip shaped plate (15) with round hole matched with bolt II (16), bolt II (16) and round hole threaded connection.

7. A three-jaw chuck according to claim 5, wherein: the end face, far away from the clamping jaw (2), of the clamping block (14) is square or arc-shaped.

8. A three-jaw chuck according to claim 1, wherein: the square pole (3) bottom is equipped with cylindrical lug (17), lug (17) surface is equipped with the external screw thread, jack catch (2) are equipped with screw (18) with lug (17) matched with, lug (17) and screw (18) threaded connection.