CN213559939U

CN213559939U - Multifunctional machine tool chuck

Info

Publication number: CN213559939U
Application number: CN202021532423.5U
Authority: CN
Inventors: 黄家强
Original assignee: Guangxi Institute of Occupational
Current assignee: Guangxi Institute of Occupational
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-06-29
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a multifunctional machine tool chuck, which comprises a chuck seat and a clamping jaw, wherein the chuck seat is provided with 8 clamping grooves; the clamping jaws are detachably and movably distributed in the clamping grooves; the jaws comprise a rigid jaw and a separable jaw; the separable clamping jaw comprises a clamping jaw seat and a movable jaw. Use the utility model discloses device and method can be directed against parts such as conventionality, polygon, eccentricity and carry out quick location and press from both sides the steady operation of tight clamp, excellent in use effect.

Description

Multifunctional machine tool chuck

Technical Field

The utility model relates to a lathe chuck technical field especially relates to an all-round lathe chuck to polygon and eccentric part.

Background

The existing machine tool chuck mainly has a three-jaw automatic chuck, but the biggest defect of the three-jaw automatic chuck is that only conventional parts such as circles and squares can be positioned and clamped, and irregular/polygonal and eccentric parts cannot be positioned, clamped and stably clamped, and even if the three-jaw automatic chuck is contacted with other tools for pressing, accurate positioning is difficult to realize in the positioning of a central point so as to supply for processing, and further the development of the machine tool chuck is seriously influenced.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above-mentioned technical problem provide one kind can carry out quick location and press from both sides the steady all-round type lathe chuck of tight clamp to parts such as conventionality, polygon, eccentricity.

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

a multifunctional machine tool chuck comprises a chuck seat and a clamping jaw, wherein the chuck seat is provided with 8 clamping grooves; the clamping jaws are detachably and movably distributed in the clamping grooves; the jaws comprise a rigid jaw and a separable jaw; the separable clamping jaws comprise clamping jaw seats and movable jaws; the lower bottom surface of the clamping jaw seat is provided with a rectangular thread groove; the right side of the upper part of the bracket is provided with a T-shaped groove, and the left side of the upper part of the bracket is correspondingly provided with an adjusting screw hole; and the middle lower part of the adjusting screw hole is correspondingly provided with a limiting screw hole; the lower bottom surface of the movable claw is matched with the T-shaped groove of the claw seat, and the lower part of the left side of the movable claw is provided with a screw hole corresponding to the adjusting screw hole; the movable claws can be movably adjusted and distributed on the claw seats.

Further, the 8-channel clamping grooves comprise a transverse clamping groove and a longitudinal clamping groove which are vertically distributed; the transverse clamping grooves comprise a left transverse clamping groove and a right transverse clamping groove; the longitudinal clamping groove comprises an upper longitudinal clamping groove and a lower longitudinal clamping groove; an upper left clamping groove and an upper right clamping groove are respectively distributed on two sides of the upper longitudinal clamping groove; included angles between the central lines of the upper left clamping groove and the upper right clamping groove and the central line of the upper longitudinal clamping groove are respectively 36 degrees; a lower left side clamping groove and a lower right side clamping groove are respectively distributed on two sides of the lower longitudinal clamping groove; the included angles between the central lines of the lower left side clamping groove and the lower right side clamping groove and the central line of the lower longitudinal clamping groove are respectively 60 degrees.

Further, the device also comprises a bevel pinion; the side surface of the chuck seat is provided with 4 holes matched with the small bevel gear, and the central lines of the holes are mutually 90 degrees.

The utility model has the advantages of compared with the prior art:

(1) the utility model discloses a be equipped with 8 draw-in grooves, and according to certain angular distribution design separately, can realize the multi-angle centre gripping, realize the effective firm centre gripping to parts such as various structures and eccentricities.

(2) The utility model discloses a cooperation is equipped with separable jack catch, can realize the adjustable centre gripping of movable claw to eccentric part, and adjusts conveniently, firm, and then can combine to select 8 card grooves to realize adding fast, firm to the eccentric part of all kinds of structures and hold.

Drawings

Fig. 1 is a top view of the universal machine tool chuck of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a top view of the chuck base of the present invention;

FIG. 4 is a cross-sectional view D-D of FIG. 3;

fig. 5 is a schematic structural view of the separable jaw of the present invention;

fig. 6 is a left side view of the separable jaws of the present invention;

FIG. 7 is a cross-sectional view B-B of FIG. 5;

fig. 8 is a schematic structural view of the jaw base of the present invention;

FIG. 9 is a cross-sectional view C-C of FIG. 8;

fig. 10 is a schematic structural view of a movable jaw of the present invention;

FIG. 11 is a top view of the present invention in clamping triangular parts;

fig. 12 is a top view of the present invention clamping pentagonal components;

FIG. 13 is a top view of the present invention clamping square parts;

FIG. 14 is a top view of the present invention clamping a rectangular part;

fig. 15 is a plan view of the present invention when clamping the eccentric circular part;

fig. 16 is a plan view of the present invention when holding an eccentric rectangular part.

Detailed Description

As shown in fig. 1 to 10, a multifunctional machine tool chuck comprises a chuck base 6 and a jaw, wherein 8 clamping grooves 13 are formed on the chuck base 6; the 8 channels of clamping grooves 13 comprise transverse clamping grooves and longitudinal clamping grooves which are vertically distributed; the transverse clamping grooves comprise a left transverse clamping groove 13-4 and a right transverse clamping groove 13-8; the longitudinal clamping grooves comprise an upper longitudinal clamping groove 13-2 and a lower longitudinal clamping groove 13-6; an upper left clamping groove 13-3 and an upper right clamping groove 13-1 are also respectively distributed on two sides of the upper longitudinal clamping groove 13-2; included angles between the central lines of the upper left clamping groove and the upper right clamping groove and the central line of the upper longitudinal clamping groove are respectively 36 degrees, as shown in fig. 3; a lower left clamping groove 13-5 and a lower right clamping groove 13-7 are also respectively distributed on two sides of the lower longitudinal clamping groove; the included angles between the central lines of the lower left side clamping groove and the lower right side clamping groove and the central line of the lower longitudinal clamping groove are respectively 60 degrees. The parts to be processed of all current various structures can be rapidly and firmly clamped only by adopting the 8-channel clamping groove 13 structure, and the using effect is good.

Of course, the clamping jaws can be detached and movably distributed in the clamping grooves 13, which can be realized in the prior art; the clamping jaw 13 of the utility model comprises a rigid clamping jaw and a separable clamping jaw; the separable clamping jaws comprise clamping jaw seats 11 and movable jaws 12; the lower bottom surface of the jaw seat 11 is provided with a rectangular thread groove, which is the same as the rectangular thread groove of a conventional rigid jaw and mainly matches with a plane thread on the upper body surface of the large bevel gear 5, so that the large bevel gear 5 drives the jaw 13 to move; the right side of the upper part of the clamping jaw seat 11 is provided with a T-shaped groove, the left side of the upper part is correspondingly provided with an adjusting screw hole, and the adjusting screw hole of the embodiment consists of a group of counter bores and through holes; and the middle lower part of the adjusting screw hole is correspondingly provided with a limit screw hole, the limit screw hole of the embodiment also comprises a group of counter bores and through holes, and the specific structure is shown in fig. 8. The lower bottom surface of the movable claw 12 is matched with the T-shaped groove of the claw seat 11, and the lower part of the left side of the movable claw is provided with a screw hole corresponding to the adjusting screw hole, as shown in fig. 10; the movable claws 12 can be movably adjusted and distributed on the claw seats 11 through the adjusting bolts 10, and meanwhile, the adjusting bolts 10 are pressed and limited through the limiting screws 9. Of course, a bevel pinion 4; the side surface of the chuck seat is provided with 4 holes matched with the small bevel gear, as shown in fig. 4, the central lines of the holes are 90 degrees, and meanwhile, the outer side part of the hole matched with the small bevel gear is provided with a limiting circular groove, so that the limiting rod 3 can limit the rotation of the small bevel gear 4.

In use, the small bevel gear 4 is rotated to drive the large bevel gear 5, and then the large bevel gear 5 drives all the rigid jaws and the separable jaws distributed in the clamping groove 13 to move uniformly inwards or outwards.

The method for carrying out high-precision and quick positioning and clamping by using the multifunctional machine tool chuck comprises the following steps:

s1: determining a required alignment center for an eccentric part to be processed, measuring the distance between each edge to be clamped by using the alignment center as a central point and using a measuring tool such as a vernier caliper to obtain a plurality of distance center values, wherein the measuring precision is the positioning precision of the device;

s2: taking the maximum value of the distance center values as a reference value, and then calculating the difference value between the reference value and other distance center values; selecting a rigid clamping jaw and a separable clamping jaw to be correspondingly and selectively installed in the clamping groove;

s3: respectively and correspondingly adjusting the displacement of the movable claws of the separable claws by using measuring tools according to the difference values;

s4: placing the eccentric part to be processed in the middle of a chuck of a machine tool, wherein each clamping edge corresponds to each clamping jaw; and then the small bevel gear is rotated to enable all the clamping jaws to move towards the center at the same time and clamp the eccentric part to be machined, the eccentric circular part is clamped as shown in figure 15, the part needs to be aligned with the machining center and then clamped by rotating the part before clamping, and the small bevel gear 4 is directly rotated to realize self-positioning and accurate clamping operation after all the edges of other non-circular eccentric parts are correspondingly placed, so that the use is very convenient and the effect is good.

By adopting the method for clamping the eccentric part, the center of the eccentric part can be quickly and accurately self-positioned, the traditional complex alignment operation of the center of the eccentric part and a machine tool machining center is not needed, the quick self-positioning and clamping work of measuring precision level of the measuring tool can be kept only by using the measuring tool, the center alignment operation time is greatly shortened, and the working efficiency is obviously improved.

Claims

1. The utility model provides a multifunctional machine tool chuck, includes chuck seat, jack catch, its characterized in that: 8 clamping grooves are formed in the clamping head seat; the clamping jaws are detachably and movably distributed in the clamping grooves; the jaws comprise a rigid jaw and a separable jaw; the separable clamping jaws comprise clamping jaw seats and movable jaws; the lower bottom surface of the clamping jaw seat is provided with a rectangular thread groove; the right side of the upper part of the bracket is provided with a T-shaped groove, and the left side of the upper part of the bracket is correspondingly provided with an adjusting screw hole; and the middle lower part of the adjusting screw hole is correspondingly provided with a limiting screw hole; the lower bottom surface of the movable claw is matched with the T-shaped groove of the claw seat, and the lower part of the left side of the movable claw is provided with a screw hole corresponding to the adjusting screw hole; the movable claws can be movably adjusted and distributed on the claw seats.

2. The multi-function machine tool chuck of claim 1, wherein: the 8 clamping grooves comprise a transverse clamping groove and a longitudinal clamping groove which are vertically distributed; the transverse clamping grooves comprise a left transverse clamping groove and a right transverse clamping groove; the longitudinal clamping groove comprises an upper longitudinal clamping groove and a lower longitudinal clamping groove; an upper left clamping groove and an upper right clamping groove are respectively distributed on two sides of the upper longitudinal clamping groove; included angles between the central lines of the upper left clamping groove and the upper right clamping groove and the central line of the upper longitudinal clamping groove are respectively 36 degrees; a lower left side clamping groove and a lower right side clamping groove are respectively distributed on two sides of the lower longitudinal clamping groove; the included angles between the central lines of the lower left side clamping groove and the lower right side clamping groove and the central line of the lower longitudinal clamping groove are respectively 60 degrees.

3. The multi-function machine tool chuck of claim 1, wherein: also comprises a small bevel gear; the side surface of the chuck seat is provided with 4 holes matched with the small bevel gear, and the central lines of the holes are mutually 90 degrees.