CN210499287U

CN210499287U - Lathe fixture

Info

Publication number: CN210499287U
Application number: CN201921070225.9U
Authority: CN
Inventors: 孙大地; 陈建放; 蔡迪忠; 黄清
Original assignee: Zhejiang Evergreen Transmission Technology Co Ltd
Current assignee: Zhejiang Evergreen Transmission Technology Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-12
Anticipated expiration: 2029-07-09

Abstract

The utility model provides a lathe fixture belongs to anchor clamps technical field. The method solves the problem that the deformation is easy to occur in the process of processing the thin-wall circular tube workpiece. The utility model discloses a bottom plate and set up outer clamp and the interior clamp on the bottom plate are equipped with outstanding mount pad on the outer clamp, install the dead lever on the mount pad, and the dead lever passes through the screw thread rotation and presss from both sides the work piece between outer clamp and interior clamp tightly. The utility model has the advantages of easy operation can avoid the work piece to warp under the effect of three-jaw chuck clamping force, has guaranteed size precision and deformation tolerance simultaneously, and anchor clamps simple structure can make according to the work piece size, low in production cost, and application scope is wide.

Description

Lathe fixture

Technical Field

The utility model relates to an anchor clamps technical field, specifically speaking relate to a lathe fixture.

Background

The thin-wall circular tube part has the advantages of light relative weight, material saving, compact structure and the like. Are often used in many mechanical products. But the thin-wall circular tube part also has the characteristics of thin wall and insufficient rigidity and strength. Therefore, the problems of stress deformation, thermal deformation, vibration deformation and the like easily occur in the process of machining the thin-wall round pipe workpiece. Particularly, when turning is carried out, if the three-jaw chuck is directly used for clamping a workpiece, the three-jaw chuck is very easy to deform under stress under the action of clamping force of the three-jaw chuck, so that the dimensional precision and the deformation tolerance of the three-jaw chuck are difficult to guarantee and control, the conventional special clamp can only be used for processing thin-wall circular pipe parts generally, and the application is single.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists among the prior art, provide a low in manufacturing cost, convenient to use, multipurpose's turning attachment.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the lathe fixture is characterized by comprising a bottom plate, an outer clamp body and an inner clamp body, wherein the outer clamp body and the inner clamp body are arranged on the bottom plate, a protruding mounting seat is arranged on the outer clamp body, a fixing rod is mounted on the mounting seat, and a workpiece is clamped between the outer clamp body and the inner clamp body through threaded rotation of the fixing rod.

The utility model discloses a theory of operation: when the lathe is used, a workpiece is arranged on the outer clamp body and the inner clamp body, the bottom plate is arranged on a slide carriage box on the lathe, the workpiece is fixed and adjusted by using the fixed rod, the workpiece is fixed and adjusted by the end surfaces of the bottom plate and the mounting seat and a mounting fixture arranged on the slide carriage box, the fixed rod penetrates through the mounting fixture and extends out of the mounting fixture, if a round shaft part is machined, the inner clamp body is not required to be directly fixed by using the fixed rod, a cutter is fixed on a three-jaw chuck of the lathe, the three-jaw chuck drives the cutter to rotate, and the slide carriage box is moved for feeding machining; when in processing, the bottom plate, the outer clamp body, the inner clamp body and the fixed rod are processed by a machine tool or directly cast, and then the outer clamp body and the bottom plate are welded together. By adopting the structure, the fixture is simple in structure, low in production cost and wide in application range, can avoid deformation of the workpiece under the action of clamping force of the three-jaw chuck, and simultaneously ensures dimensional accuracy and deformation tolerance.

In the lathe fixture, the number of the mounting seats is at least one.

In the lathe fixture, the outer clamp body is further provided with a locking hole, and the workpiece is further fixed through the connecting piece.

In the above lathe fixture, the fixing rod comprises a rod body and a handle, the handle is fixedly connected with the rod body in a T shape through welding, and the tail of the rod body is provided with threads.

In the lathe fixture, the mounting seat is located at the center of the top end of the outer clamp body.

In the lathe fixture, the mounting seat and the outer clamp body are welded.

In the lathe fixture, the mounting seat and the outer clamp body are integrally cast.

Compared with the prior art, the lathe fixture adopting the technical scheme has the following beneficial effects: the utility model discloses compare traditional anchor clamps, not only make easy operation, can avoid the work piece to warp under the effect of three-jaw chuck clamping force, guaranteed size precision and deformation tolerance moreover, anchor clamps simple structure can make according to the work piece size, low in production cost can process thin wall pipe and circle axle part, and application scope is wide.

Drawings

Fig. 1 is an isometric schematic view of the present invention.

In the figure, 1, a bottom plate; 2. an outer clamp body; 3. an inner clamp body; 4. a mounting seat; 5. fixing the rod; 6. a locking hole; 7. a rod body; 8. a handle.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the present lathe clamp includes a bottom plate 1, and an outer clamp 2 and an inner clamp 3 which are arranged on the bottom plate 1, wherein a protruding mounting seat 4 is arranged on the outer clamp 2, a fixing rod 5 is arranged on the mounting seat 4, and the fixing rod 5 clamps a workpiece between the outer clamp 2 and the inner clamp 3 by screw thread rotation.

To be more specific, in order to ensure that the workpiece is fixed and prevent the workpiece from loosening, the number of the mounting seats 4 is at least one.

In more detail, the outer clamp body 2 is further provided with a locking hole 6, and the workpiece is further fixed through a connecting piece. The operation is simple, and common bolts can be used for locking and fixing.

In further detail, the fixing rod 5 comprises a rod body 7 and a handle 8, the handle 8 is fixedly connected with the rod body 7 in a T shape through welding, and the tail of the rod body 7 is provided with threads.

In more detail, the mounting seat 4 is located at the center of the top end of the outer clamp body 2 for convenient operation and no interference to other parts of the lathe.

The structure of the outer clamp body 2 is preferably implemented in the following two ways:

the first implementation mode comprises the following steps: in order to reduce the production difficulty, the mounting seat 4 and the outer clamp body 2 are welded. The mounting seat 4 and the outer clamp body 2 are processed separately and then welded together, so that the processing difficulty and the material waste are reduced.

The second embodiment: in order to reduce the production difficulty and cost, the mounting seat 4 and the outer clamp body 2 are integrally cast. The mounting seat 4 and the outer clamp body 2 are directly cast, finish machining is carried out by using a machine tool, the machining difficulty is lower than that of a welding type, and cost is saved.

When the lathe is used, a workpiece is arranged on the outer clamp body 2 and the inner clamp body 3, the bottom plate 1 is arranged on a slide carriage box on the lathe, the workpiece is fixed and adjusted by the fixing rod 5, the workpiece is fixed and adjusted by the end surfaces of the bottom plate 1 and the mounting seat 4 and a mounting fixture arranged on the slide carriage box, the fixing rod 5 penetrates through the mounting fixture and extends out of the mounting fixture, if a round shaft part is machined, the inner clamp body 3 is not needed to be directly fixed by the fixing rod 5, a cutter is fixed on a three-jaw chuck of the lathe, the three-jaw chuck drives the cutter to rotate, and the slide carriage box is moved to carry out feeding machining; when in processing, the bottom plate 1, the outer clamp body 2, the inner clamp body 3 and the fixed rod 5 are processed by a machine tool or directly cast, and then the outer clamp body 2 and the bottom plate 1 are welded together.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the bottom plate 1, the outer clamp 2, the inner clamp 3, the mounting seat 4, the fixing rod 5, the locking hole 6, the rod body 7, the handle 8, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The lathe fixture is characterized by comprising a bottom plate (1), an outer clamp body (2) and an inner clamp body (3) which are arranged on the bottom plate (1), wherein a protruding mounting seat (4) is arranged on the outer clamp body (2), a fixing rod (5) is mounted on the mounting seat (4), and the fixing rod (5) clamps a workpiece between the outer clamp body (2) and the inner clamp body (3) through threaded rotation; the number of the mounting seats (4) is at least one; the outer clamp body (2) is also provided with a locking hole (6) for further fixing the workpiece through a connecting piece; the fixing rod (5) comprises a rod body (7) and a handle (8), the handle (8) is fixedly connected with the rod body (7) through welding to form a T shape, and the tail of the rod body (7) is provided with threads; the mounting seat (4) is positioned at the center of the top end of the outer clamp body (2).

2. The lathe fixture according to claim 1, wherein the mounting seat (4) and the outer clamp body (2) are welded.

3. The turning attachment of claim 1, characterized in that the mounting seat (4) and the outer clamp body (2) are cast in one piece.