CN214814926U

CN214814926U - Chuck positioning and clamping device

Info

Publication number: CN214814926U
Application number: CN202023165387.6U
Authority: CN
Inventors: 武凯
Original assignee: Taiyuan Aero Instruments Co Ltd
Current assignee: Taiyuan Aero Instruments Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-23
Anticipated expiration: 2030-12-24

Abstract

The utility model belongs to the machining field, concretely relates to chuck positioning and clamping device. The method comprises the following steps: chuck (3), a plurality of jack catchs (4) and jack catch positioning seat (1) and locating piece (2) of setting on every jack catch, wherein, a plurality of jack catchs (4) can set up on chuck (3) with stretching out and drawing back, jack catch positioning seat (1) is fixed at jack catch (4) tip, locating piece (2) and jack catch positioning seat (1) fixed connection, locating piece (2) up end inside is provided with the depressed part, under the clamping state, the depressed part combination of locating piece (2) on a plurality of jack catchs (4) forms the appearance parcel face of waiting to shrink clamping part. The utility model discloses a be with the same mating surface of part centre gripping surface shape, and what adopt is that the parcel principle presss from both sides tightly the part, therefore part positioning accuracy is high, be difficult for pressing from both sides and hinder or fish tail part machined surface.

Description

Chuck positioning and clamping device

Technical Field

The utility model belongs to the machining field, concretely relates to chuck positioning and clamping device.

Background

When the chuck clamps and positions a part on a numerical control lathe and a numerical control machining center, different clamps are required to be manufactured according to different shapes and sizes of the part when the machined surface is clamped. Usually, self-made bushings are adopted and chuck soft claws with different shapes are manufactured. When the self-made bushing is used for positioning a part, the positioning precision is low, and the positioning precision of the part is reduced because the middle link of positioning and clamping is added when the part is clamped, so that the self-made bushing is not suitable for finish machining. The chuck soft claws of different models are suitable for the positioning and finish machining of parts, but have high cost and low efficiency. Because a large number of chuck soft claws need to be manufactured according to different shapes and sizes of the part clamping surfaces. Both methods are labor and time consuming, costly, inefficient, long preparation time, and cannot be reused. The high-efficiency production progress of numerical control machining is restricted in production.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the chuck positioning and clamping device can quickly clamp and position without damaging parts.

The technical scheme is as follows:

in a first aspect, a chuck positioning and clamping device is provided, which includes: the clamping fixture comprises a chuck, a plurality of clamping jaws, clamping jaw positioning seats and positioning blocks, wherein the clamping jaw positioning seats and the positioning blocks are arranged on each clamping jaw, the clamping jaws can be telescopically arranged on the chuck, the clamping jaw positioning seats are fixed at the end parts of the clamping jaws, the positioning blocks are fixedly connected with the clamping jaw positioning seats, concave parts are arranged on the inner sides of the upper end faces of the positioning blocks, and under a clamping state, the concave parts of the positioning blocks on the plurality of clamping jaws are combined to form an appearance wrapping surface of a clamping part to be contracted.

Furthermore, a T-shaped groove is formed in the jaw positioning seat, a T-shaped block is arranged on the positioning block, and the T-shaped block of the positioning block is connected with the T-shaped groove in the jaw positioning seat in a matched mode.

Furthermore, a fastening screw is further arranged on the clamping jaw positioning seat and penetrates through the bottom of the T-shaped groove to fix the positioning block.

In a second aspect, there is provided a chuck positioning and clamping device, comprising: the clamping fixture comprises a chuck, a plurality of clamping jaws, clamping jaw positioning seats and positioning blocks, wherein the clamping jaw positioning seats and the positioning blocks are arranged on each clamping jaw, the clamping jaws can be telescopically arranged on the chuck, the clamping jaw positioning seats are fixed at the end parts of the clamping jaws, the positioning blocks are fixedly connected with the clamping jaw positioning seats, and the inner sides of the upper end faces of the positioning blocks are provided with protrusions.

Has the advantages that:

the utility model discloses a be with the same mating surface of part centre gripping surface shape, and what adopt is that the parcel principle presss from both sides tightly the part, therefore part positioning accuracy is high, be difficult for pressing from both sides and hinder or fish tail part machined surface.

Drawings

Fig. 1 is a schematic structural diagram of a chuck positioning and clamping device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a clamping positioning block;

FIG. 3 is a schematic structural view of the jaw positioning base;

FIG. 4 is a combination view of the locating block and the jaw locating seats;

fig. 5 is a combination view of the positioning block, the jaw positioning seat and the jaw.

Wherein, jack catch positioning seat 1, locating piece 2, chuck 3, jack catch 4.

Detailed Description

In order to improve the production efficiency, reduce the production cost, reduce the preparation time of a special tool clamp and improve the positioning and processing precision of parts. A positioning jaw is provided which can be used many times and replaced quickly. The chuck can be quickly assembled and disassembled on the original chuck jaws, can be repeatedly used for many times, and has high efficiency, simple structure and convenient assembly and disassembly. The tooling cost is greatly reduced, the tooling preparation time is shortened, and the part machining efficiency is improved. The design adopts the matching surface with the same shape as the clamping surface of the part, and the part is clamped by adopting the wrapping principle, so that the part has high positioning precision and is not easy to clamp or scratch the machined surface of the part. Different clamping positioning blocks can be manufactured according to the shape of the clamping surface of the part, so that the part clamping adaptability is high, and the part clamping positioning device can be applied to clamping and positioning parts with different diameters and different shapes. The quick-replaceable and adjustable positioning device for the chuck clamp has the advantages of wide application range, high reliability, stable clamping and convenience in popularization and application in industrial production.

Specifically, as shown in fig. 1 to 5, in an embodiment of the present invention, a chuck positioning and clamping device includes: chuck 3, three jack catch 4 and jack catch positioning seat 1 and the locating piece 2 of setting on every jack catch, wherein, a plurality of jack catches 4 can set up on chuck 3 telescopically, jack catch positioning seat 1 is fixed at 4 tip of jack catch, locating

piece

2 and 1 fixed connection of jack catch positioning seat, 2 up end inside of locating piece are provided with the depressed part, under the clamping state, the depressed part combination of the locating piece 2 on a plurality of jack catches 4 forms the appearance parcel face of treating shrink clamping part. The bottom surface of depressed part is used for carrying out height-limiting to the part for the horizontal plane. Preferably, the jaw positioning seat 1 is provided with a T-shaped groove, the positioning block 2 is provided with a T-shaped block, and the T-shaped block of the positioning block 2 is connected with the T-shaped groove of the jaw positioning seat 1 in a matching manner. The T-shaped block is conveniently detached and positioned in a connection and matching mode with the T-shaped groove. And fastening screws are further arranged on the clamping jaw positioning seats 1 and penetrate through the bottoms of the T-shaped grooves to fix the positioning blocks 2. The fastening screw can fix the positioning block 2.

As shown in fig. 2, the positioning block 2 can be adjusted up and down along the T-shaped groove, and after the positioning block is fixed by the locking screws, the positioning block can be subjected to finish machining according to part clamping surfaces with different shapes and sizes, so that the functions of quick clamping and accurate positioning of parts are realized.

As shown in fig. 3, the jaw positioning seat 1 is provided with a shaped hole in the middle, which can be tightly matched with the chuck jaws. On the hard claw of being fixed in three chuck through locking screw, processing has T type groove on the frame for adjust the height of clamping locating piece, convenient and fast has enlarged the flexibility of part clamping and location.

In another embodiment of the present invention, a chuck positioning and clamping device includes: chuck 3, a plurality of jack catchs 4 and jack catch positioning seat 1 and the locating piece 2 of setting on every jack catch, wherein, a plurality of jack catchs 4 can set up on chuck 3 telescopically, jack catch positioning seat 1 is fixed at 4 tip of jack catch, locating

piece

2 and 1 fixed connection of jack catch positioning seat, 2 up end inside of locating piece are provided with the bellying, under the clamping state, the bellying of the locating piece 2 on a plurality of jack catchs 4 forms the interior shape binding face of waiting to expand the part. The outer side surface of the protruding part can be processed according to the size of an inner hole of the part to be expanded and clamped, and a plane is formed on the periphery of the protruding part and used for conducting height positioning on the part to be expanded and clamped.

Preferably, the jaw positioning seat 1 is provided with a T-shaped groove, the positioning block 2 is provided with a T-shaped block, and the T-shaped block of the positioning block 2 is connected with the T-shaped groove of the jaw positioning seat 1 in a matching manner. The T-shaped block is conveniently detached and positioned in a connection and matching mode with the T-shaped groove. And fastening screws are further arranged on the clamping jaw positioning seats 1 and penetrate through the bottoms of the T-shaped grooves to fix the positioning blocks 2. The fastening screw can fix the positioning block 2.

The device of the utility model is simple in structure, the part clamping is reliable, stable fast. The clamp is easy to disassemble and assemble as required when in use. When the part is clamped, the machined surface of the part is protected, and the accurate positioning of the height and the coaxiality of the part is realized. The surfaces of the parts are not easy to scratch and clamp by adopting a wrapping type clamping mode. The positioning blocks with different shapes can be replaced according to the requirements, and the part clamping range is wide. The adjustable positioning blocks (aluminum, copper and steel) made of different materials can be manufactured, and the part clamping adaptability is strong. The production efficiency is greatly improved, the preparation time of a special tool is shortened, and the production cost is reduced.

Claims

1. A chuck positioning and clamping device, comprising: chuck (3), a plurality of jack catchs (4) and jack catch positioning seat (1) and locating piece (2) of setting on every jack catch, wherein, a plurality of jack catchs (4) can set up on chuck (3) with stretching out and drawing back, jack catch positioning seat (1) is fixed at jack catch (4) tip, locating piece (2) and jack catch positioning seat (1) fixed connection, locating piece (2) up end inside is provided with the depressed part, under the clamping state, the depressed part combination of locating piece (2) on a plurality of jack catchs (4) forms the appearance parcel face of waiting to shrink clamping part.

2. The device according to claim 1, characterized in that the jaw positioning seat (1) is provided with a T-shaped groove, the positioning block (2) is provided with a T-shaped block, and the T-shaped block of the positioning block (2) is matched and connected with the T-shaped groove on the jaw positioning seat (1).

3. The device according to claim 2, characterized in that the jaw positioning base (1) is further provided with a fastening screw which penetrates through the bottom of the T-shaped groove to fix the positioning block (2).

4. A chuck positioning and clamping device, comprising: chuck (3), a plurality of jack catchs (4) and jack catch positioning seat (1) and locating piece (2) of setting on every jack catch, wherein, a plurality of jack catchs (4) can set up on chuck (3) with stretching out and drawing back, jack catch positioning seat (1) is fixed at jack catch (4) tip, locating piece (2) and jack catch positioning seat (1) fixed connection, locating piece (2) up end inside is provided with the bellying, under the clamping state, the bellying of locating piece (2) on a plurality of jack catchs (4) forms the interior shape binding face of waiting to expand the part.

5. The device according to claim 4, characterized in that the jaw positioning seat (1) is provided with a T-shaped groove, the positioning block (2) is provided with a T-shaped block, and the T-shaped block of the positioning block (2) is matched and connected with the T-shaped groove on the jaw positioning seat (1).

6. The device according to claim 5, characterized in that the jaw positioning seat (1) is further provided with a fastening screw which penetrates through the bottom of the T-shaped groove to fix the positioning block (2).