CN211840176U

CN211840176U - Lathe fixture with protective sleeve

Info

Publication number: CN211840176U
Application number: CN202020433717.6U
Authority: CN
Inventors: 吕明明
Original assignee: Hunan Shinehood Group No169 Chemical Industry Co ltd
Current assignee: Hunan Shinehood Group No169 Chemical Industry Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-03
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses an anchor clamps for lathe with protective sheath, including chuck and a plurality of movable mounting jack catch on the chuck, it is a plurality of the jack catch can follow chuck radial movement and press from both sides tightly or loosen the work piece, anchor clamps are still including being used for pressing from both sides the flexible protective sheath between jack catch and work piece, flexible protective sheath press from both sides when between jack catch and work piece with the work piece face contact. The utility model discloses an anchor clamps have can protect the work piece, simple operation, machining efficiency height, security advantage such as high.

Description

Lathe fixture with protective sleeve

Technical Field

The utility model relates to a machining equipment field, concretely relates to anchor clamps for lathe with protective sheath.

Background

The blasting yard needs hundreds of lead screws in annual overhaul, and the lead screws are high in price and not beneficial to reducing the cost. The bolt can be processed into a screw rod, and the screw rod of the bolt becomes the screw rod only by turning off the head of the bolt. The bolt is cheap, and the material is easily obtained, so that the cost is reduced. The operation of turning off the head of the bolt is usually performed on a lathe. During machining, the clamping jaws clamp the screw rod, and then turning operation is carried out. However, the claw directly clamps the screw, so that the thread on the screw is easily damaged, and the claw cannot tightly clamp the screw, so that the screw flies out, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome not enough that prior art exists, provide one kind can protect the work piece, simple operation, machining efficiency, high lathe anchor clamps that have the protective sheath of security.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the clamp with the protective sleeve for the lathe comprises a chuck and a plurality of clamping jaws movably mounted on the chuck, wherein the clamping jaws can move along the radial direction of the chuck to clamp or loosen a workpiece, the clamp further comprises a flexible protective sleeve clamped between the clamping jaws and the workpiece, and the flexible protective sleeve is in surface contact with the workpiece when clamped between the clamping jaws and the workpiece.

In the above lathe fixture with a protective sleeve, preferably, the contact surface of the flexible protective sleeve with the workpiece is a cambered surface.

The fixture with the protective sleeve for the lathe is preferably a hollow pipe body with an inner cavity, the inner cavity can accommodate workpieces, a center hole is formed in the chuck, one end of the hollow pipe body is inserted into the center hole, a strip-shaped through groove extending along the axial direction is formed in the pipe wall of the hollow pipe body, and the pipe wall of the hollow pipe body is disconnected at the strip-shaped through groove.

In the above lathe jig with the protective sleeve, preferably, the jig further includes a stopper for preventing the hollow pipe from moving in the direction of the chuck.

In the above lathe fixture with a protective sleeve, preferably, the stopper is a flange provided at an end of the hollow pipe body remote from the chuck.

In the above lathe fixture with a protective sleeve, preferably, the width of the strip-shaped through groove in the natural state of the hollow pipe body is 3 mm.

In the above lathe jig with a protective sleeve, the hollow pipe is preferably a thin pipe having a thickness of 1.5 mm.

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

the clamp of the utility model is provided with the flexible protective sleeve, when the jack catch clamps the workpiece, the flexible protective sleeve is clamped between the jack catch and the workpiece, the flexible protective sleeve can protect the workpiece, the flexible protective sleeve is in contact with the workpiece surface, the pressure on the workpiece is small when the jack catch clamps the workpiece, the workpiece is prevented from being damaged by the jack catch, the workpiece is ensured to be clamped, the workpiece is prevented from flying out, and safety accidents are caused; the utility model discloses an anchor clamps still have advantages such as convenient operation is swift, machining efficiency height.

Drawings

Fig. 1 is a schematic structural view of a jig.

Fig. 2 is a schematic structural view of the protective sheath.

Illustration of the drawings:

1. a chuck; 2. a claw; 3. a workpiece; 4. a central bore; 5. a hollow pipe body; 6. a flange; 7. and a strip-shaped through groove.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 and 2, the lathe clamp with the protective sleeve of the present embodiment includes a chuck 1 and a plurality of jaws 2 movably mounted on the chuck 1, the plurality of jaws 2 can move in a radial direction of the chuck 1 to clamp or unclamp a workpiece 3, the clamp further includes a flexible protective sleeve for clamping between the jaws 2 and the workpiece 3, and the flexible protective sleeve is in surface contact with the workpiece 3 when clamped between the jaws 2 and the workpiece 3. The utility model discloses an anchor clamps are mainly applicable to the axle type part of clamping threaded, in this embodiment, work piece 3 is the bolt, is equipped with flexible protective sheath on the anchor clamps, jack catch 2 when pressing from both sides tight work piece 3, flexible protective sheath is pressed from both sides between jack catch 2 and work piece 3, flexible protective sheath can protect work piece 3, flexible protective sheath and 3 face contact of work piece, the pressure that work piece 3 received is little when jack catch 2 presss from both sides tight work piece 3, avoid work piece 3 to be pressed from both sides by jack catch 2 and damage, and ensure that work piece 3 is pressed from both sides tightly, avoid work piece 3 to fly out, cause the incident; the utility model discloses an anchor clamps still have advantages such as convenient operation is swift, machining efficiency height.

In this embodiment, the contact surface of the flexible protective sleeve and the workpiece 3 is an arc surface. The contact area of the workpiece 3 and the flexible protective sleeve is large, and when the clamping jaw 2 clamps the workpiece 3, the pressure on the workpiece 3 is small.

In this embodiment, the flexible protective sheath is hollow body 5 for having the inner chamber, and the inner chamber can hold work piece 3, is equipped with centre bore 4 on the chuck 1, and the one end of hollow body 5 is inserted and is established in centre bore 4, offers the bar that follows axial extension on the pipe wall of hollow body 5 and leads to groove 7, and the bar leads to groove 7 and leads to the disconnection of groove 7 department at the bar with the pipe wall of hollow body 5. Specifically, the diameter of the inner cavity of the hollow pipe body 5 is 0.5-0.6mm larger than the diameter of the screw rod, the width of the strip-shaped through groove 7 in the natural state of the hollow pipe body 5 is 3mm, when the hollow pipe body is used, a workpiece 3 is placed into the inner cavity of the hollow pipe body 5, the hollow pipe body 5 covers the workpiece 3 to protect the workpiece 3, when the workpiece 3 is clamped, the pipe walls of the strip-shaped through groove 7 on two sides are close to each other, the strip-shaped through groove 7 is formed in the hollow pipe body 5, a deformation space is reserved, and the flexible protective sleeve is easy to restore. The flexible protective sleeve is simple in structure, easy to manufacture and low in cost.

In this embodiment, the fixture further includes a limiting device for preventing the hollow pipe 5 from moving towards the chuck 1. Specifically, stop device is flange 6 for setting up at hollow body 5 and keeping away from 1 one end of chuck, and flange 6 is the bellied annular flange of centre of a circle direction dorsad, hollow body 5 and flange 6 integrated into one piece, and during the use, flange 6 card can prevent hollow body 5 to the direction removal of chuck 1 at the free end of jack catch 2, avoids hollow body 5 to shift out the coverage area of jack catch 2, ensures that hollow body 5 can protect work piece 3.

In this embodiment, the hollow pipe 5 is a thin-walled pipe with a thickness of 1.5 mm. Because the hollow pipe body 5 adopts a thin-wall pipe body, the clamping jaw 2 can be ensured to clamp the workpiece 3, and the cost is saved.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.

Claims

1. The utility model provides a lathe is with anchor clamps with protective sheath, includes chuck (1) and a plurality of movable mounting claw (2) on chuck (1), a plurality of claw (2) can press from both sides tight or unclamp work piece (3) along chuck (1) radial movement, its characterized in that: the clamp further comprises a flexible protective sleeve clamped between the clamping jaw (2) and the workpiece (3), and the flexible protective sleeve is in surface contact with the workpiece (3) when clamped between the clamping jaw (2) and the workpiece (3).

2. The turning attachment with a cover according to claim 1, characterized in that: the contact surface of the flexible protective sleeve and the workpiece (3) is an arc surface.

3. The turning attachment with a cover according to claim 2, characterized in that: the flexible protective sleeve is a hollow pipe body (5) with an inner cavity, the inner cavity can accommodate a workpiece (3), a center hole (4) is formed in the chuck (1), one end of the hollow pipe body (5) is inserted into the center hole (4), a strip-shaped through groove (7) extending along the axial direction is formed in the pipe wall of the hollow pipe body (5), and the pipe wall of the hollow pipe body (5) is disconnected at the strip-shaped through groove (7) through the groove (7).

4. The turning attachment with a cover according to claim 3, characterized in that: the fixture further comprises a limiting device for preventing the hollow pipe body (5) from moving towards the chuck (1).

5. The turning attachment with a cover according to claim 4, characterized in that: the limiting device is a flange (6) which is arranged at one end, far away from the chuck (1), of the hollow pipe body (5).

6. The turning attachment with a cover according to claim 3, characterized in that: the width of the strip-shaped through groove (7) is 3mm when the hollow pipe body (5) is in a natural state.

7. The turning attachment with a cover according to any one of claims 3 to 6, characterized in that: the hollow pipe body (5) is a thin-wall pipe body with the thickness of 1.5 mm.