CN218461558U

CN218461558U - Positioning and locking device for T-shaped key groove of machine tool

Info

Publication number: CN218461558U
Application number: CN202222689380.7U
Authority: CN
Inventors: 李应时; 孙晓飞; 潘张彪; 李峰; 莫平
Original assignee: AVIC Xian Aircraft Industry Group Co Ltd
Current assignee: AVIC Xian Aircraft Industry Group Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-02-10
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a location locking device for lathe T type keyway, this locking device contain T type groove locating pin flexible base, locking seat, and T type groove locating pin flexible base is a cross section and is the rectangle metal sheet of T type, and cross sectional shape and size are unanimous with the standard keyway cross-section on the lathe to can carry out the high accuracy cooperation with it. The positioning locking flexible base is arranged in a precision T-shaped groove of a machine tool, and the device can be provided with positioning holes randomly for installing positioning pins for positioning parts and threaded holes for clamping the parts. The fixed position of the part installed in the positioning and locking flexible base in the machine tool can be flexibly adjusted and quickly fixed and locked.

Description

Positioning and locking device for T-shaped key groove of machine tool

Technical Field

The application belongs to the technical field of mechanical manufacturing equipment, and relates to a positioning and locking device for a T-shaped key groove of a machine tool.

Background

At present, a part clamping mode known in the field is a conventional pressing plate and bolt pressing mode, a machine tool is rarely used for positioning or clamping a part in a high-precision T shape, a scheme that a bolt penetrates through a T-shaped groove and then the part is clamped by a pressing plate is adopted, and the clamping mode has the defects of low clamping efficiency and incapability of accurately positioning.

The aircraft structure spare production is typical many varieties, small batch, and the product line change is frequent in the production process, if adopt special frock clamping part, clamping efficiency is high, nevertheless the frock is used and is lacked the flexibility, and has shortcomings such as manufacturing cost height, production cycle length, occupation place.

The pressure plate clamping is typical six-point incomplete positioning clamping, so in the machining process, parts are easy to displace and scrap, if a T-shaped key groove positioning and locking device is adopted, the device is a flexible device and can be flexibly arranged at any position of a precision T-shaped key groove as required and then locked, and therefore the self-existing precision T-shaped groove of the machine tool is effectively utilized.

Disclosure of Invention

In order to overcome the defects that the existing platform of the machine tool cannot be effectively utilized, the part clamping is lack of positioning and is easy to scrap, a device which can flexibly and accurately position and clamp and effectively utilize the existing platform of the machine tool, namely a positioning and locking device for a T-shaped key groove of the machine tool, is designed.

A positioning and locking device for a T-shaped key groove of a machine tool comprises a T-shaped groove positioning pin flexible base and a locking seat, wherein the T-shaped groove positioning pin flexible base is a rectangular metal plate with a T-shaped cross section, the shape and size of the T-shaped cross section are consistent with the cross section of a standard precision key groove on the machine tool and can be matched with the T-shaped cross section with high precision, a smooth inclined plane with an inclination angle of 45 degrees is arranged on the inverted T-shaped upper surface of the T-shaped groove positioning pin flexible base along the length direction in the width direction, a threaded hole is formed in the center of the inclined plane and used for being connected with the locking seat, the locking seat is a wedge-shaped block with an isosceles right triangle section, and a long round through hole is formed in the right-angle surface of the wedge-shaped block and used for passing through a screw, the inclined plane of the locking seat is in close contact with the smooth inclined plane with the inclination angle of 45 degrees of the T-shaped groove positioning pin flexible base, and the locking block can generate a lateral pressing force when moving downwards under the action of the screw, so that the T-shaped groove positioning pin flexible base can be effectively fixed in the T-shaped key groove of the machine tool.

And processing a positioning pin hole or a threaded hole on the flexible base of the T-shaped groove positioning pin according to the positioning installation position of the part.

The beneficial effect of this application lies in: the device is arranged in a precision T-shaped groove of a machine tool through a positioning and locking flexible base, positioning holes can be randomly arranged on the device for installing positioning pins for positioning parts, and threaded holes can also be arranged for clamping the parts; the locking seat is arranged on the positioning and locking flexible base, and the flexible adjustment and the quick fixing and locking at the fixed position of the positioning and locking flexible base in the machine tool are realized.

The present application is described in further detail below with reference to the accompanying drawings of embodiments.

Drawings

Fig. 1 is a schematic view of the use state of the T-shaped keyway positioning and locking device.

Fig. 2 is a schematic structural view of the T-shaped key groove positioning and locking device.

Fig. 3 is a schematic view of the locking seat.

Fig. 4 is a schematic view of the connection relationship between the locking seat and the positioning and locking flexible base.

The numbering in the figures illustrates: 1 machine tool T-shaped key groove, 2T-shaped groove positioning and locking flexible base, 3 locking seats, 4 long circular through holes, 5 positioning holes, 6 threaded holes and 7 machine tool platforms.

Detailed Description

Referring to the attached drawings 1-4, the existing part clamping is to clamp a part allowance area through a bolt pressing plate, but the clamping mode is that the part is not completely positioned at six points, so that the part is easy to displace during machining.

The positioning and locking device comprises a T-shaped groove positioning and locking flexible base 2, a locking seat 3, wherein the T-shaped groove positioning pin flexible base 2 is a rectangular metal plate with a T-shaped cross section, the shape and size of the T-shaped cross section are consistent with the cross section of a standard precision key groove on a machine tool and can be matched with the T-shaped groove positioning pin flexible base with high precision, a smooth inclined plane with an inclination angle of 45 degrees is arranged on the inverted T-shaped upper surface of the T-shaped groove positioning pin flexible base 2 in the width direction along the length direction, a threaded hole 6 is formed in the center of the inclined plane and used for being connected with the locking seat 3, the locking seat 3 is a wedge-shaped block with an isosceles right triangle in cross section, and a long circular through hole 4 is formed in the right-angle surface of the wedge-shaped block and used for passing through a screw, the inclined plane of the locking seat 3 is in close contact with the smooth inclined plane with the inclination angle of 45 degrees of the T-shaped groove positioning pin flexible base 2, and the locking seat 3 can generate a lateral pressing force when moving downwards under the action of the screw, so that the T-shaped groove positioning pin flexible base 2 is effectively fixed in the T-shaped key groove 1 of the machine tool.

And a positioning pin hole or a threaded hole is processed on the flexible base 2 of the T-shaped groove positioning pin according to the positioning installation position of the part.

The T-shaped groove positioning pin flexible base 2 is provided with a threaded hole 6 for installing the locking seat 3, a positioning hole 5 for positioning a part and a threaded hole for clamping the part. As shown in fig. 3, the flexible base 2 of the T-shaped groove positioning pin is precisely matched with the T-shaped key groove 1 of the machine tool, the upper part of the locking seat 3 is provided with a long circular through hole 4, the locking seat 3 is connected with the flexible base 2 of the T-shaped groove positioning pin through a locking screw (not shown in the figure), and the locking seat generates a lateral clamping force in the screwing process of the locking screw, so that the flexible base 2 of the T-shaped groove positioning pin is firmly locked in the T-shaped key groove 1 of the machine tool.

Locking seat 3 is the metal construction of a triangle-shaped cross-section, the cooperation below locking seat 4 uses the flexible base 2 of the location locking of the shape of falling T in cross-section, the horizontal right-angle face center of locking seat 4 is equipped with long circular through-hole 4, 45 inclined planes of locking seat 3 lower parts and the 45 inclined plane district that the flexible base 2 of T location locking set up carry out threaded connection, locking seat 3 can produce lateral displacement at the process that compresses tightly downwards to produce the side direction clamp force.

The use state is as shown in figure 1, the locating hole that the woollen set up passes through the pin joint with locating hole 6 on the flexible base 2 of T shape location locking, has guaranteed the accurate six points of the woollen and has positioned completely, the flexible base 2 of T shape location locking is arranged at lathe T type inslot flexibility according to actual need, lock in the suitable position, then utilize the screw hole on the flexible base 2 of T shape location locking, carry out the clamping to the part, form a set of flexible clamping system, need not adjust when the part trades the line and adds man-hour, the flexible location clamping problem of part when adding man-hour has been solved.

Claims

1. The utility model provides a location locking device for lathe T type keyway, its characterized in that includes T type groove locating pin flexible base, the locking seat, T type groove locating pin flexible base be a cross section for the rectangle metal sheet of T type, T type cross-sectional shape and size are unanimous with the standard precision keyway cross-section on the lathe, can carry out high accuracy cooperation with it, the smooth inclined plane at 45 inclinations is equipped with along length on the width direction on the type of falling T upper surface of T type groove locating pin flexible base, be equipped with the screw hole in inclined plane central point, be used for with the connection of locking seat, the locking seat is the wedge that the cross-section is isosceles right triangle, and open on its right angle face has long circular through-hole, the through-hole is used for passing through the screw, the inclined plane of locking seat and the smooth inclined plane at 45 inclinations of T type groove locating pin flexible base closely contact, the locking block can produce a side direction packing force under the effect of screw under the downstream, thereby the effectual lathe T type keyway of fixing T type groove locating pin at the lathe T type keyway at the lathe.

2. The positioning and locking device for the T-shaped key groove of the machine tool as claimed in claim 1, wherein the flexible base of the positioning pin of the T-shaped groove is provided with a positioning pin hole or a threaded hole according to the positioning and mounting position of the part.