CN219616721U - Three-jaw chuck with locking function - Google Patents

Abstract

The utility model discloses a three-jaw chuck with a locking function, which comprises a chuck, wherein a plurality of sliding plates are arranged on the chuck in a sliding manner, two threaded holes are formed in each sliding plate, a jaw is fixedly arranged on each threaded hole in a matched manner through a screw rod, a sliding mechanism is arranged between each sliding plate and the chuck, a rack is fixedly arranged on each sliding plate, a rotating shaft is rotatably arranged on the chuck, tooth cylinders which are meshed with the racks are fixedly arranged on the rotating shaft, and a knob is fixedly arranged on the rotating shaft. The advantages are that: the claw is locked, the external driving mechanism is not needed to be used for locking, the use is more convenient, the practicability is higher, meanwhile, the waffle enables a plurality of claws to operate simultaneously and jointly, compared with the independent operation of each claw originally, the driving mechanism can be reduced through the integral operation, the failure rate of the driving mechanism is reduced, and meanwhile the manufacturing cost can be reduced.

Description

Three-jaw chuck with locking function

Technical Field

The utility model relates to the technical field of three-jaw chucks, in particular to a three-jaw chuck with a locking function.

Background

The three-jaw chuck is a machine tool accessory for clamping and positioning a workpiece by utilizing radial movement of three movable jaws uniformly distributed on a chuck body, and consists of the chuck body, the movable jaws and a jaw driving mechanism.

The existing three-jaw chuck has the following defects in the specific use process: 1. the movable claw can be fixed by an external driving mechanism, so that the movable claw cannot be locked by itself, and the movable claw is inconvenient to use; 2. the three movable claws independently move, and three independent driving mechanisms are needed to cooperate, so that the fault probability is increased, and the manufacturing cost is also increased.

Therefore, the novel three-jaw chuck with the locking function can be adopted to solve the defects in the prior art.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a three-jaw chuck with a locking function.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a three-jaw chuck with locking function, includes the chuck, slip case has a plurality of slides on the chuck, every two screw holes have all been seted up on the slide, two that match all have a jack catch through screw rod fixed mounting on the screw hole, every slide all installs slide mechanism between chuck, every equal fixed mounting has a rack on the slide, rotate on the chuck and install the pivot, the fixed tooth section of thick bamboo of installing with a plurality of racks homogeneous phase meshing of pivot, fixed mounting has the knob in the pivot, slidable mounting has the inserted pin on the knob, set up a plurality of slots with inserted pin matched with on the chuck.

In the three-jaw chuck with locking function, the sliding mechanism comprises a sliding groove, a support and rollers, a plurality of supports are fixedly arranged on the sliding plate, each support is rotatably provided with a roller, and the chuck is provided with the sliding groove matched with the plurality of rollers.

In the three-jaw chuck with the locking function, the fixing plate is fixedly arranged on the inserting column, and a plurality of springs are fixedly arranged between the fixing plate and the chuck.

In the three-jaw chuck with the locking function, the end parts of the jaws are designed in an arc mode, and the length of the jaws is larger than that of the sliding plate.

In the three-jaw chuck with the locking function, each rack is distributed in a staggered mode, and the length of each rack is larger than the length of each jaw extending out of the sliding plate.

Compared with the prior art, the utility model has the advantages that:

1: through setting up knob, inserted column and slot, can lock the pivot, prevent that the pivot from rotating by oneself to this locks the jack catch, need not to lock with the help of external actuating mechanism, uses more convenient, and the practicality is higher.

2: through setting up rack and tooth section of thick bamboo, link into a whole with a plurality of jack catchs for a plurality of jack catchs joint movement, for the independent operation of original every jack catch, whole operation reducible actuating mechanism reduces actuating mechanism's fault rate, also can reduce the cost of manufacture simultaneously.

In summary, the utility model locks the claws without using an external driving mechanism, so that the utility model is more convenient to use and has higher practicability, and simultaneously, the waffle enables a plurality of claws to operate together at the same time, compared with the original operation of each claw independently, the integral operation can reduce the driving mechanism, reduce the failure rate of the driving mechanism and reduce the manufacturing cost.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic diagram of a three-jaw chuck with locking function according to the present utility model;

FIG. 2 is a schematic detail of the cross-sectional structure of FIG. 1;

FIG. 3 is a schematic detail view of the rear view of FIG. 1;

fig. 4 is an enlarged schematic detail view of the portion a in fig. 3.

In the figure: the device comprises a chuck 1, a clamping jaw 2, a screw 3, a sliding groove 4, a sliding plate 5, a threaded hole 6, a tooth cylinder 7, a rack 8, a roller 9, a knob 10, a bracket 11, a rotating shaft 12, a slot 13, a plunger 14, a fixing plate 15 and a spring 16.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a three-jaw chuck with locking function comprises a chuck 1, wherein a plurality of sliding plates 5 are arranged on a sliding case of the chuck 1, two threaded holes 6 are formed in each sliding plate 5, a jaw 2 is fixedly arranged on each matched threaded hole 6 through a screw 3, a sliding mechanism is arranged between each sliding plate 5 and the chuck 1, a rack 8 is fixedly arranged on each sliding plate 5, a rotating shaft 12 is rotatably arranged on the chuck 1, a tooth cylinder 7 which is meshed with the racks 8 is fixedly arranged on the rotating shaft 12, a knob 10 is fixedly arranged on the rotating shaft 12, a plunger 14 is slidably arranged on the knob 10, and a plurality of slots 13 matched with the plunger 14 are formed in the chuck 1;

the following points are notable:

1. the sliding mechanism comprises a sliding groove 4, a support 11 and rollers 9, a plurality of supports 11 are fixedly arranged on the sliding plate 5, each support 11 is rotatably provided with one roller 9, the chuck 1 is provided with the sliding groove 4 matched with the plurality of rollers 9, and the sliding plate 5 slides on the chuck 1 more smoothly.

2. The fixed plate 15 is fixedly arranged on the inserted column 14, a plurality of springs 16 are fixedly arranged between the fixed plate 15 and the chuck 1, and the effect of the arrangement is to increase the clamping force between the inserted column 14 and the slot 13 and improve the clamping stability.

3. The tip of jack catch 2 adopts the circular arc design, and the length of jack catch 2 is greater than the length of slide 5, and the effect of circular arc design is in order to protect the work piece, and the effect of length design is in order to ensure that three jack catch 2 can contact each other.

4. Each rack 8 is distributed in a staggered mode, the length of each rack 8 is larger than that of each jaw 2 extending out of the sliding plate 5, and the size is set to ensure that the jaws 2 can smoothly collide.

Firstly, the inserted column 14 is pulled out of the slot 13, then one claw 2 is moved, under the action of the rack 8 and the tooth cylinder 7, the other two claws 2 are driven to move simultaneously until the three claws 2 clamp and fix a workpiece, then the inserted column 14 is loosened, the inserted column 14 is clamped with the other slot 13 under the action of the spring 16, so that the knob 10 is locked, and at the moment, the rotating shaft 12 and the tooth cylinder 7 are not rotatable, so that the purpose of locking the claws 2 is realized.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a three-jaw chuck with locking function, includes chuck (1), its characterized in that, slip case has a plurality of slide (5) on chuck (1), every two screw holes (6) have all been seted up on slide (5), matched with two all have a jack catch (2) through screw rod (3) fixed mounting on screw hole (6), every slide (5) all install slide mechanism between chuck (1), every equal fixed mounting has a rack (8) on slide (5), rotate on chuck (1) and install pivot (12), install tooth section of thick bamboo (7) with a plurality of racks (8) homogeneous phase meshing on pivot (12), fixed mounting has knob (10) on pivot (12), slidable mounting has spliced pole (14) on knob (10), set up a plurality of slots (13) with spliced pole (14) on chuck (1).

2. The three-jaw chuck with the locking function according to claim 1, wherein the sliding mechanism comprises a sliding groove (4), a support (11) and rollers (9), a plurality of supports (11) are fixedly arranged on the sliding plate (5), one roller (9) is rotatably arranged on each support (11), and the sliding groove (4) matched with the plurality of rollers (9) is formed in the chuck (1).

3. The three-jaw chuck with locking function according to claim 1, wherein a fixing plate (15) is fixedly mounted on the insert column (14), and a plurality of springs (16) are fixedly mounted between the fixing plate (15) and the chuck (1).

4. The three-jaw chuck with locking function according to claim 1, characterized in that the ends of the jaws (2) are designed as circular arcs and the length of the jaws (2) is greater than the length of the slide plate (5).

5. A three-jaw chuck with locking function according to claim 1, characterized in that each of the racks (8) is arranged with a dislocation and that the length of the racks (8) is greater than the length of the jaws (2) extending out of the slide (5).