CN219093681U

CN219093681U - Lathe jaw

Info

Publication number: CN219093681U
Application number: CN202223264801.8U
Authority: CN
Inventors: 秦佳雯
Original assignee: Jiangyin Puyang Heavy Industry Co ltd
Current assignee: Jiangyin Puyang Heavy Industry Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-30
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a lathe claw, which comprises a claw arranged on a chuck, wherein a groove is arranged on a clamping surface of the claw and is used for avoiding a flange on a workpiece, and the lathe claw has the beneficial effects that: the clamping jaw body is directly provided with the groove or the clamping jaw sleeve and the clamping jaw form the groove, so that the flange on the workpiece is conveniently avoided, the chuck can clamp the outer peripheral surface of the workpiece beyond the flange, and the end face of the workpiece with the flange is machined by the lathe.

Description

Lathe jaw

Technical Field

The utility model relates to the technical field of lathe chucks, in particular to a lathe claw.

Background

As shown in fig. 5, when a workpiece with a flange is machined by using a horizontal lathe, when the workpiece is machined away from the other end face of the flange, one end of the workpiece with the flange needs to be clamped by adopting a three-jaw chuck of the horizontal lathe, but the clamping face of the jaw of the conventional horizontal lathe chuck is an arc face and is directly clamped on the outer circumferential face of the workpiece, and the workpiece with the flange is directly clamped on the flange, but the thickness of the flange is not more than 2cm and cannot bear the clamping force of the jaw of the conventional chuck.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a lathe claw, wherein a groove is formed in the claw for avoiding a flange on a workpiece, so that the claw can conveniently clamp the workpiece, and the claw can be machined and manufactured.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the lathe claw comprises a claw arranged on a chuck, wherein a groove is formed in a clamping surface of the claw and used for avoiding a flange on a workpiece.

In order to facilitate forming a groove on the claw and facilitate processing and manufacturing, a further preferable technical scheme is that a claw sleeve is sleeved on the claw, the end face, close to the chuck, of the claw sleeve and the claw clamping surface form a groove for avoiding a flange on a workpiece, and a clamping claw sleeve clamping surface for clamping the workpiece is arranged on the claw sleeve.

In order to facilitate the fixation of the jaw sleeve and form a stable clamping mechanism, a further preferable technical scheme is that the other surface of the jaw sleeve, which is opposite to the clamping surface of the jaw sleeve, is provided with a screw hole, and a screw matched with threads is arranged in the screw hole to fix the jaw sleeve on the jaw.

In order to facilitate forming the groove on the claw and facilitate processing and manufacturing, a further preferable technical scheme is that the claw body, of which the claw clamping surface is close to one end of the chuck, is provided with the groove.

In order to adapt the shape of the groove to the flange, a further preferable technical scheme is that the groove is a U-shaped groove.

Compared with the prior art, the utility model has the beneficial effects that: the clamping jaw body is directly provided with the groove or the clamping jaw sleeve and the clamping jaw form the groove, so that the flange on the workpiece is conveniently avoided, the chuck can clamp the outer peripheral surface of the workpiece beyond the flange, and the end face of the workpiece with the flange is machined by the lathe.

Drawings

FIG. 1 is an isometric view of example 1 of the present utility model;

FIG. 2 is an isometric view of embodiment 2 of the present utility model;

FIG. 3 is a second perspective view of embodiment 2 of the present utility model;

FIG. 4 is an isometric view of a locked workpiece according to example 2 of the present utility model;

fig. 5 is an isometric view of a workpiece of the present utility model.

In the figure: 10. a chuck; 20. a claw; 21. a jaw clamping surface; 30. a groove; 40. a screw; 50. a claw sleeve; 51. clamping surfaces of the claw sleeves; 60. a workpiece; 61. and a flange.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples

As shown in fig. 1, a lathe jaw comprises three jaws 20 arranged on a chuck 10, a groove 30 is formed in the jaw body, which is close to one end of the chuck 10, of each jaw clamping surface 21, the groove 30 is a U-shaped groove and is used for avoiding a flange 61 on a workpiece 60, the groove 30 is directly formed by cutting on the jaw body, the lathe jaw is simple in structure and convenient to use, and the chuck 10 can clamp the outer circumferential surface of the workpiece 60 beyond the flange 61 by avoiding the flange 61 on the workpiece 60, so that the end surface of the workpiece 60 with the flange is machined by the lathe 61;

further, when the jaws 20 are stepped jaws 20, the jaw body of the jaw clamping surface 21 corresponding to each step, which is close to one end of the chuck 10, is provided with a groove 30, and the workpiece 60 can be placed on the corresponding jaw clamping surface 21 to form a positioning clamp;

as shown in fig. 2 and fig. 3, in another embodiment, the chuck comprises three jaws 20 arranged on the chuck 10, a jaw sleeve 50 is sleeved on the jaws 20, an opening cavity which is fit with the jaw appearance structure is formed in the jaw sleeve 50, the jaw sleeve 50 is sleeved on the jaws 20 through the opening of the cavity, a groove 30 is formed by the end surface of the jaw sleeve 50, which is close to the chuck 10, and the jaw clamping surface 21, the groove 30 is a U-shaped groove and is used for avoiding a flange 61 on the workpiece 60, a jaw sleeve clamping surface 51 used for clamping the workpiece is arranged on the jaw sleeve 50, the jaw sleeve clamping surface 51 is an arc surface and is arranged in parallel with the jaw clamping surface 21 and is used for clamping the outer circumferential surface of the workpiece 60;

in order to facilitate the fixation of the jaw sleeve 50 and form a stable clamping mechanism, further, a screw hole is arranged on the other surface of the jaw sleeve 50 opposite to the jaw sleeve clamping surface 51, a screw 40 in threaded fit is arranged in the screw hole, the screw 40 is an inner hexagon head screw, the jaw sleeve 50 is fixed on the jaw 20, so that the jaw sleeve 50 is convenient to fix, a groove is formed between the jaw sleeve 50 and the jaw clamping surface 21, so that the flange 61 on the workpiece 60 is avoided, the chuck 10 can be clamped on the outer peripheral surface of the workpiece 60 except the flange 61, and the end surface processing of the workpiece 60 with the flange 61 by a lathe is realized;

as shown in fig. 4, in use, the jaw sleeve 50 is first sleeved on the jaw 20, and is mounted in a screw hole of the jaw sleeve 50 by an inner hexagon head screw and is abutted against the jaw 20, the jaw sleeve 50 is fixed on the jaw 20, then the workpiece 60 is placed on the jaw sleeve clamping surface 51, the workpiece flange 61 is placed in a groove 30 formed by the end surface of the jaw sleeve 50, which is close to the chuck 10, and the jaw clamping surface 21, then the jaw 20 is driven to lock the outer circumferential surface except the workpiece flange 61, and then end surface machining can be performed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The lathe jaw comprises a jaw arranged on a chuck, and is characterized in that a groove is formed in a clamping surface of the jaw and used for avoiding a flange on a workpiece.

2. The lathe dog according to claim 1, wherein a dog sleeve is sleeved on the dog, a groove is formed on the end face, close to the chuck, of the dog sleeve and the dog clamping surface and is used for avoiding a flange on a workpiece, and a dog sleeve clamping surface used for clamping the workpiece is arranged on the dog sleeve.

3. A lathe dog as claimed in claim 2 wherein the other face of the dog sleeve opposite the gripping face of the dog sleeve is provided with a screw hole in which a screw is provided for screw engagement to secure the dog sleeve to the dog.

4. A lathe dog as claimed in claim 1 wherein said dog gripping face has said recess in said dog body adjacent one end of said chuck.

5. A lathe dog as claimed in claim 2 or claim 4 wherein the recess is a U-shaped recess.