CN217474886U

CN217474886U - High-precision clamping jaw device based on three-jaw chuck and three-jaw chuck

Info

Publication number: CN217474886U
Application number: CN202221015762.5U
Authority: CN
Inventors: 朱昌平; 张善高; 吴涛; 陈云峰
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-23
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a high accuracy jack catch device, three-jaw chuck based on three-jaw chuck, high accuracy jack catch device includes the jack catch, jack catch one side is provided with the recess, and recess upper portion runs through and is provided with the fine setting screw, and fine setting screw bottom swing joint has the adjusting block, adjusting block one side and the inboard vertical sliding connection of recess of jack catch, opposite side slant sliding connection have sub-jack catch base, sub-jack catch base bottom and jack catch lateral sliding connection, the fixed sub-jack catch that is provided with in top. Use the utility model discloses, can need not frequent repair claw alignment from the car to need not frequent change jack catch main part, effectively solved the fast problem of soft claw wearing and tearing, can effectively prolong the life of jack catch, reduce use cost.

Description

High-precision clamping jaw device based on three-jaw chuck and three-jaw chuck

Technical Field

The utility model belongs to the technical field of machining equipment, a high accuracy jack catch device, three-jaw chuck based on three-jaw chuck is related to.

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, has a simple structure and a self-centering function, and is widely applied to machining. However, in the actual production process, the repeated positioning precision is poor, and the processing requirement of high-precision products cannot be met. At present, parts with slightly higher precision are subjected to finish machining, and a workpiece is clamped by adopting soft claws. In order to ensure the positioning accuracy, when clamping workpieces with different diameters or the jaws are worn, the jaws must be replaced or the jaws must be machined and aligned, which causes problems:

(1) the production line comprises a plurality of varieties of small-batch customized products, a claw needs to be replaced frequently, the claw needs to be repaired and aligned again after the claw is replaced, the operation is very complicated, and the production preparation time is long;

(2) the claw needs frequent self-repairing claw alignment, so that the claw is directly scrapped integrally when being repaired to a certain size, and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the background art, the utility model provides a high accuracy jack catch device, three-jaw chuck based on three-jaw chuck need not frequent self-turning and repaiies the claw alignment to need not frequent change jack catch main part, effectively solved the fast problem of soft claw wearing and tearing, can effectively prolong the life of jack catch, reduce use cost.

The utility model provides a technical problem's technical scheme as follows:

the utility model relates to a high accuracy jack catch device based on three-jaw chuck, including the jack catch, jack catch one side is provided with the recess, and recess upper portion runs through and is provided with the fine setting screw, and fine setting screw bottom swing joint has the adjusting block, adjusting block one side and the inboard vertical sliding connection of recess of jack catch, opposite side slant sliding connection have sub-jack catch base, sub-jack catch base bottom and jack catch lateral sliding connection, the fixed sub-jack catch that is provided with in top.

Furthermore, the inner side of the groove of the clamping jaw is vertically provided with an adjusting block slide rail through a plurality of first positioning pins and first fastening screws, and the adjusting block is provided with a first slide groove matched with the adjusting block slide rail and is in sliding connection with the first slide groove.

Furthermore, the adjusting block slide rail is in one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape.

Furthermore, a T-shaped groove is formed in the top of the adjusting block, and the end portion of the fine adjusting screw is of a T-shaped structure and is movably connected into the T-shaped groove.

Furthermore, an oblique sliding rail and an oblique sliding groove which are mutually matched are respectively arranged on one side of the adjusting block, which is connected with the daughter card claw base in an oblique sliding manner, and are connected in a sliding manner.

Furthermore, the oblique slide rail is in one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape.

Furthermore, sub-claw base bottom transversely is provided with the second spout, be provided with on the jack catch with the sub-claw base slide rail of second spout looks adaptation and sliding connection with it, sub-claw base slide rail passes through a plurality of second locating pins and the fixed setting of second fastening screw on the jack catch.

Furthermore, a boss is arranged in the middle of the upper portion of the sub-jaw base, a plurality of steps are arranged on the sub-jaw, one side of each step is in contact with the boss, and the middle of each step is fixedly connected with the sub-jaw base through a third fastening screw.

Furthermore, both sides of the clamping jaw are respectively provided with a protection plate through a plurality of fourth fastening screws.

The utility model relates to a three-jaw chuck, its characterized in that: the high-precision clamping jaw device comprises 3 groups of uniformly arranged high-precision clamping jaw devices based on the three-jaw chuck.

Compared with the prior art, the high-precision clamping jaw device based on the three-jaw chuck and the three-jaw chuck are novel in design, simple and reasonable in structure, free of self-turning for clamping jaw alignment after application, capable of hardening the soft jaw, capable of effectively solving the problem of fast abrasion of the soft jaw, prolonging the service life of the clamping jaw and reducing the use cost; the utility model discloses a fine setting screw and adjusting block swing joint, the adjusting block respectively with adjusting block slide rail and sub jack catch base from top to bottom sliding connection and slant sliding connection to and sub jack catch base and jack catch lateral sliding connection, make the device from taking the precision regulatory function, need not to repair the claw operation from the car, and the upper portion of sub jack catch sets up a plurality of steps, be applicable to the centre gripping processing of multiple different diameter work pieces, simultaneously, carry out high accuracy location processing to the three-jaw, can utilize on other equipment except lathe; in addition, to the frequent condition that changes production of many varieties of small-batch customized products, the jaw main body part does not need to be replaced, only the sub-jaws need to be replaced, and quick reloading can be realized.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the adjusting block of the present invention;

FIG. 4 is a schematic side view of the adjusting block of the present invention;

fig. 5 is a schematic top view of the adjusting block of the present invention;

FIG. 6 is a schematic structural view of a slide rail of the adjusting block of the present invention;

FIG. 7 is a schematic plan view of the slide rail of the adjusting block of the present invention;

fig. 8 is a schematic structural view of the fine adjustment screw of the present invention;

fig. 9 is a schematic structural view of a neutron claw base of the present invention;

fig. 10 is a schematic side view of the neutron claw base according to the present invention;

fig. 11 is a schematic top view of the neutron claw base according to the present invention;

fig. 12 is a schematic structural view of a neutron jaw of the present invention;

in the figure: 1. a claw; 2. an adjusting block; 21. a first chute; 22. a T-shaped groove; 23. an oblique slide rail; 3. Fine adjustment of screws; 4. a sub-jaw base; 42. a boss; 43. a second chute; 44. an oblique chute; 5. a sub-jaw; 6. a third fastening screw; 7. a sub-claw base slide rail; 8. a second positioning pin; 9. a second fastening screw; 10. adjusting block slide rails; 11. a first fastening screw; 12. a first positioning pin; 13. a protection plate; 14. And a fourth fastening screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships are also changed accordingly. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Example 1:

as shown in fig. 1 to 12, the utility model relates to a high accuracy jack catch device based on three-jaw chuck, including jack catch 1, 1 one side of jack catch is provided with the recess, and recess upper portion runs through and is provided with fine setting screw 3, and fine setting screw 3 bottom swing joint has adjusting block 2, adjusting block 2 one side and the inboard vertical sliding connection of recess of jack catch 1, and opposite side slant sliding connection has sub-jack catch base 4, and sub-jack catch base 4 bottom and 1 lateral sliding connection of jack catch are fixed to be provided with sub-jack catch 5 in top. In the embodiment, the adjusting block 2 is vertically and slidably connected with the inner side of the groove of the jaw 1, so that the adjusting block 2 can move in the vertical direction under the action of the fine adjustment screw 3, and the other side of the adjusting block 2 is obliquely and slidably connected with the sub-jaw base 4, so that the adjusting block 2 can move in the horizontal direction and the left direction when moving up and down, and further the sub-jaw 5 on the sub-jaw base 4 can move left and right to finish precision adjustment; in the embodiment, the inclined angle of the inclined sliding connection between the adjusting block 2 and the sub-pawl base 4 can be specifically set according to the fine adjustment precision so as to adapt to different fine adjustment precisions; when in adjustment, the dial indicator can be adopted to punch the clamping part of the clamping jaw 5, and the fine adjustment screw 3 is rotated, so that the precision can be accurately adjusted; in the adjusting process, the change of the precision data can be visually seen through the dial indicator, any bolt does not need to be fastened after adjustment, adjustment and fastening are synchronously carried out, convenience and rapidness are achieved, the correcting efficiency is greatly improved, meanwhile, the method of repairing the soft claw by a vehicle is also avoided, and the abrasion of the claw is reduced.

Example 2:

on the basis of the embodiment 1, the inner side of the groove of the clamping jaw 1 is vertically provided with an adjusting block slide rail 10 through a plurality of first positioning pins 12 and first fastening screws 11, and the adjusting block 2 is provided with a first slide groove 21 matched with the adjusting block slide rail 10 and is in sliding connection with the adjusting block slide rail; further, the adjusting block slide rail 10 may be one of a dovetail-shaped linear guide rail, a rectangular linear guide rail, and a semicircular linear guide rail, preferably, a dovetail-shaped linear guide rail, the shape of the first slide groove 21 corresponds to that of the adjusting block slide rail 10, and the adjusting block 2 is restricted from moving only in the vertical direction on the adjusting block slide rail 10 by the cooperation between the adjusting block slide rail 10 and the first slide groove 21.

In this embodiment, 2 tops of adjusting block are provided with T type groove 22, the tip of fine setting screw 3 sets up to T type structure and swing joint in T type groove 22, both is convenient for fine setting screw 3 and adjusting block 2's assembly, also is convenient for carry out the fine setting of orientation from top to bottom through fine setting screw 3 to adjusting block 2.

In this embodiment, the oblique slide rail 23 and the oblique slide groove 44, which are matched with each other, are respectively disposed on one side of the adjusting block 2, which is connected with the sub-claw base 4 in an oblique sliding manner, and are connected in a sliding manner. Further, the oblique slide rail 23 is one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape, preferably a dovetail linear guide rail shape, and through interaction between the oblique slide rail 23 and the oblique slide groove 44, the oblique slide rail 23 and the oblique slide groove 44 move obliquely relatively, so that the sub-jaw base 4 moves in the transverse direction, and adjustment of the position of the sub-jaw 5 on the sub-jaw base 4 is facilitated.

In this embodiment, the bottom of the sub-jaw base 4 is transversely provided with a second chute 43, the jaw 1 is provided with a sub-jaw base slide rail 7 matched with the second chute 43 and is connected with the sub-jaw base slide rail in a sliding manner, and the sub-jaw base slide rail 7 is fixedly arranged on the jaw 1 through a plurality of second positioning pins 8 and second fastening screws 9. Further, the sub-claw base slide rail 7 may be configured to be one of a dovetail linear guide, a rectangular linear guide, and a semicircular linear guide, preferably a dovetail linear guide, and the sub-claw base 4 is limited to move only in the left-right direction on the sub-claw base slide rail 7 by the interaction between the second sliding groove 43 and the sub-claw base slide rail 7.

Example 3:

on the basis of embodiment 1 or embodiment 2, the upper middle position of the sub-claw base 4 is provided with a boss 42, one side of the sub-claw 5 is in contact with the boss 42, the other side of the sub-claw 5 is arranged to be a plane, the upper part of the sub-claw is provided with a plurality of steps, the bottom of the sub-claw is provided with a key groove and is positioned on the sub-claw base 4, and the middle position of the sub-claw is provided with a step hole and is fixedly connected with the sub-claw base 4 through a third fastening screw 6. Set up a plurality of steps on sub-claw 5, can set to the clamping face of different diameters in advance, can just satisfy the processing centre gripping of multiple diameter work piece when not trading sub-claw 5, in addition, when trading and producing or other needs according to the jack catch circumstances, can directly change sub-claw 5 and just can realize, when changing sub-claw 5, every sub-claw only need dismantle down third fastening screw 6 can, the improvement that the exchange dress efficiency obtained great.

Example 4:

on the basis of any one of embodiments 1-3, both sides of jack catch 1 are provided with guard plate 13 through a plurality of fourth fastening screw 14 respectively, can reduce processing iron fillings etc. and get into in the high accuracy jack catch device based on three-jaw chuck, hoisting device's life.

Example 5:

the utility model relates to a three-jaw chuck, it includes 3 groups of embodiment 1-4 arbitrary ones that evenly set up on its chuck the high accuracy jack catch device based on three-jaw chuck.

Claims

1. The utility model provides a high accuracy jack catch device based on three-jaw chuck, includes jack catch (1), its characterized in that: jaw (1) one side is provided with the recess, and recess upper portion runs through and is provided with fine setting screw (3), and fine setting screw (3) bottom swing joint has adjusting block (2), adjusting block (2) one side and the inboard vertical sliding connection of recess of jaw (1), and opposite side slant sliding connection has sub-jaw base (4), and sub-jaw base (4) bottom and jaw (1) horizontal sliding connection, top are fixed and are provided with sub-jaw (5).

2. A three-jaw chuck based high precision jaw apparatus according to claim 1, wherein: the inner side of the groove of the clamping jaw (1) is vertically provided with an adjusting block sliding rail (10) through a plurality of first positioning pins (12) and a first fastening screw (11), and a first sliding groove (21) matched with the adjusting block sliding rail (10) is formed in the adjusting block (2) and is in sliding connection with the adjusting block sliding rail.

3. A three-jaw chuck based high precision jaw apparatus according to claim 2, wherein: the adjusting block sliding rail (10) is in one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape.

4. A three-jaw chuck based high precision jaw apparatus according to claim 1, wherein: the top of the adjusting block (2) is provided with a T-shaped groove (22), and the end part of the fine adjustment screw (3) is arranged to be of a T-shaped structure and is movably connected into the T-shaped groove (22).

5. A three-jaw chuck based high precision jaw apparatus according to claim 1, wherein: and one side of the adjusting block (2) and the sub-pawl base (4) which are connected in a sliding manner in an inclined manner is respectively provided with an inclined slide rail (23) and an inclined slide groove (44) which are matched with each other and are connected in a sliding manner.

6. A three-jaw chuck based high precision jaw apparatus according to claim 5, wherein: the inclined slide rail (23) is in one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape.

7. A three-jaw chuck based high precision jaw apparatus according to claim 1, wherein: the sub-claw base (4) is transversely provided with a second sliding groove (43) in the bottom, a sub-claw base sliding rail (7) matched with the second sliding groove (43) is arranged on the claw (1) and is in sliding connection with the claw, the sub-claw base sliding rail (7) is in one of a dovetail linear guide rail shape, a rectangular linear guide rail shape and a semicircular linear guide rail shape, and is fixedly arranged on the claw (1) through a plurality of second positioning pins (8) and second fastening screws (9).

8. A high accuracy jaw apparatus based on three-jaw chuck according to claim 1, characterized in that: the upper middle position of the sub-clamping jaw base (4) is provided with a boss (42), the sub-clamping jaw (5) is provided with a plurality of steps, one side of the sub-clamping jaw is in contact with the boss (42), and the middle part of the sub-clamping jaw is fixedly connected with the sub-clamping jaw base (4) through a third fastening screw (6).

9. A high accuracy jaw apparatus based on three-jaw chuck according to claim 1, characterized in that: and two sides of the clamping jaw (1) are respectively provided with a protection plate (13) through a plurality of fourth fastening screws (14).

10. A three-jaw chuck, characterized by: comprising 3 sets of evenly arranged three-jaw chuck based high-precision jaw means according to claims 1-9.