CN219484899U

CN219484899U - Special fixture suitable for processing inner hole and preventing deformation of lathe

Info

Publication number: CN219484899U
Application number: CN202320506428.8U
Authority: CN
Inventors: 李光勇; 吕雪利; 赵峰; 吕文明; 李兆霞
Original assignee: SHANDONG HUIJIN CO Ltd
Current assignee: SHANDONG HUIJIN CO Ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-08
Anticipated expiration: 2033-03-16

Abstract

The utility model relates to the technical field of lathe clamps, and discloses a special clamp for a lathe, which is suitable for processing an inner hole and used for preventing deformation. The special fixture for the lathe is suitable for machining the inner hole and used for preventing deformation, and is used for positioning the common plane double pins, clamping the bolts in a pressing mode, quickly positioning, reducing the clamping time and preventing the shape and position and size tolerance out of tolerance caused by clamping deformation during machining the inner hole; the production cost is reduced, the positioning stability of the processed part can be ensured by skillfully utilizing the plane double pins, and the quality problem of products caused by positioning errors is avoided; the parts are processed in a free state, so that the processing precision of products is ensured, and the requirements of the shape, position and dimensional tolerance of drawings are met.

Description

Special fixture suitable for processing inner hole and preventing deformation of lathe

Technical Field

The utility model relates to the technical field of lathe clamps, in particular to a special clamp for a lathe, which is suitable for machining an inner hole and prevents deformation.

Background

With the continuous development of technology, in the modern manufacturing industry, various machined workpieces are layered endlessly, and the development of different fields is adapted. However, in actual production, there are a large number of non-revolving parts or irregular parts, and in these cases, the machining process often considers that a machining center is used, and milling and boring are adopted to respectively implement the machining of the parts.

However, the machining mode is not only to prepare more clamps, but also the lathe clamp usually clamps the outer circle of the part to machine the inner hole and the end face for clamping the claw of the three-claw chuck structure, and the part is clamped and deformed due to the fact that the wall thickness is thinner and the clamping force is too high; the clamping force is too small, and the product is easy to loosen; the drawing requirements are not guaranteed.

Disclosure of Invention

The utility model aims to provide a special fixture for a lathe, which is suitable for machining an inner hole and prevents deformation, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a be applicable to processing hole and prevent deformation lathe special fixture, includes connection pad, U template and machined part, the front in the connection pad is installed to the U template, the machined part is installed in the inside of U template, locating component is installed to the outer wall of U template, coupling assembling is installed in the front of connection pad.

The locating component consists of an auxiliary unit and a fixing unit, wherein the auxiliary unit is positioned in the U-shaped plate, and the fixing unit is positioned on the outer wall of the U-shaped plate.

Preferably, the auxiliary unit comprises a cylindrical pin, an inner hole is formed in the U-shaped plate, and the cylindrical pin is located in the middle of the positioning assembly and is arranged in the inner hole.

Preferably, the outer wall of cylindric lock and the inside sliding connection of hole, cylindric lock can slide in the inside of hole, the top and the bottom butt of machined part of cylindric lock, cylindric lock can play the effect that supports to the machined part.

Preferably, the fixing unit includes a T-bolt mounted at the bottom of the U-shaped plate and a nut mounted above the work piece.

Preferably, the top of T type bolt runs through cylindric lock, machined part and nut to extend to the top of nut, the outer wall of T type bolt respectively with cylindric lock inside and the inner wall sliding connection that the machined part was run through, can install T type bolt through gliding mode, the gasket is installed to the bottom of nut, nut and T type bolt adaptation can accomplish the fixed to T type bolt through the nut.

Preferably, the connecting assembly comprises a connecting bolt, the connecting bolt is arranged in the U-shaped plate, and a connecting hole is formed in the connecting disc.

Preferably, one end of the connecting bolt penetrates through the U-shaped plate and extends to the inside of the connecting hole, the outer wall of the connecting bolt is slidably connected with the inner wall of the U-shaped plate, the connecting bolt can be installed in a sliding mode, the connecting bolt is matched with the connecting hole, the connecting bolt can be rotated in a rotating mode, and therefore connection and fixation between the U-shaped plate and the connecting disc are achieved.

The utility model provides a special fixture for a lathe suitable for machining an inner hole and preventing deformation, which has the following beneficial effects:

1. the special fixture for the lathe is suitable for machining the inner hole and used for preventing deformation, and is used for positioning the common plane double pins, clamping the bolts in a pressing mode, quickly positioning, reducing the clamping time and preventing the shape and position and size tolerance out of tolerance caused by clamping deformation during machining the inner hole; the production cost is reduced, the positioning stability of the processed part can be ensured by skillfully utilizing the plane double pins, and the quality problem of products caused by positioning errors is avoided; the parts are processed in a free state, so that the processing precision of products is ensured, and the requirements of the shape, position and dimensional tolerance of drawings are met.

2. This be applicable to processing hole prevents to warp lathe special fixture, when needs change the U template, through using apparatus rotation connecting bolt for connecting bolt and U template separation, operating personnel alright change the processing to the U template this moment, easy operation is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is an exploded view of the positioning assembly of the present utility model;

FIG. 3 is a schematic illustration showing the separation of the structure of the connecting assembly according to the present utility model.

In the figure: 1. a connecting disc; 2. a U-shaped plate; 3. a work piece; 4. a positioning assembly; 401. an inner bore; 402. a cylindrical pin; 403. a T-shaped bolt; 404. a nut; 5. a connection assembly; 501. a connecting bolt; 502. and a connection hole.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a be applicable to processing hole and prevent deformation lathe special fixture, includes connection pad 1, U template 2 and machined part 3, and U template 2 is installed in the front of connection pad 1, and machined part 3 is installed in the inside of U template 2, and locating component 4 is installed to the outer wall of U template 2, and locating component 4 comprises auxiliary unit and fixed unit, and auxiliary unit is located the inside of U template 2, and fixed unit is located the outer wall of U template 2, and coupling assembling 5 is installed in the front of connection pad 1.

The auxiliary unit includes cylindric lock 402, and hole 401 has been seted up to the inside of U template 2, and cylindric lock 402 is located the middle part of locating component 4, and installs in the inside of hole 401, and cylindric lock 402's outer wall and the inside sliding connection of hole 401, cylindric lock 402 can slide in the inside of hole 401, and cylindric lock 402's top and the bottom butt of machined part 3, cylindric lock 402 can play the effect of supporting to machined part 3.

The fixed unit includes T type bolt 403 and nut 404, and T type bolt 403 installs in the bottom of U type board 2, and nut 404 installs in the top of machined part 3, and cylindric lock 402, machined part 3 and nut 404 are run through on the top of T type bolt 403 to extend to the top of nut 404, the outer wall of T type bolt 403 respectively with cylindric lock 402 inside and the inner wall sliding connection that machined part 3 was run through, can install T type bolt 403 through the gliding mode, the gasket is installed to the bottom of nut 404, nut 404 and T type bolt 403 adaptation can accomplish the fixed to T type bolt 403 through nut 404.

The common plane double-pin positioning, the bolt is pressed and clamped, the positioning is quick, the clamping time is shortened, and the shape and size tolerance exceeding caused by clamping deformation during the inner hole machining is prevented; the production cost is reduced, the positioning stability of the processed part can be ensured by skillfully utilizing the plane double pins, and the quality problem of products caused by positioning errors is avoided; the parts are processed in a free state, so that the processing precision of products is ensured, and the requirements of the shape, position and dimensional tolerance of drawings are met.

The connecting assembly 5 comprises a connecting bolt 501, the connecting bolt 501 is installed inside the U-shaped plate 2, a connecting hole 502 is formed in the connecting disc 1, one end of the connecting bolt 501 penetrates through the U-shaped plate 2 and extends to the inside of the connecting hole 502, the outer wall of the connecting bolt 501 and the inner wall of the U-shaped plate 2 which are penetrated through are in sliding connection, the connecting bolt 501 can be installed in a sliding mode, the connecting bolt 501 is matched with the connecting hole 502, the connecting bolt 501 can be rotated in a rotating mode, and therefore connection and fixation between the U-shaped plate 2 and the connecting disc 1 are achieved.

When the U-shaped plate 2 needs to be replaced, the connecting bolt 501 is rotated by using the instrument, so that the connecting bolt 501 is separated from the U-shaped plate 2, and an operator can replace the U-shaped plate 2 at the moment, so that the operation is simple and convenient.

When the machine tool is used, an operator places a workpiece 3 to be machined in the U-shaped plate 2, and moves the T-shaped bolt 403 in a sliding mode, so that the top end of the T-shaped bolt 403 penetrates through the cylindrical pin 402 and the workpiece 3 and extends to the upper side of the workpiece 3, then the operator places a gasket on the outer wall of the T-shaped bolt 403 in a sliding mode, and rotates the nut 404 in a rotating mode, so that the nut 404 moves on the outer wall of the T-shaped bolt 403 under the action of threads until the bottom of the nut 404 pushes the gasket to be abutted against the surface of the workpiece 3, and the fixing of the workpiece 3 is completed.

Claims

1. The utility model provides a be applicable to processing hole and prevent deformation lathe special fixture, includes connection pad (1), U template (2) and machined part (3), U template (2) are installed in the front of connection pad (1), inside in U template (2) is installed to machined part (3), its characterized in that: the outer wall of the U-shaped plate (2) is provided with a positioning component (4), and the front surface of the connecting disc (1) is provided with a connecting component (5);

the positioning assembly (4) consists of an auxiliary unit and a fixing unit, wherein the auxiliary unit is positioned in the U-shaped plate (2), and the fixing unit is positioned on the outer wall of the U-shaped plate (2).

2. A special fixture for a lathe for processing an inner hole to prevent deformation according to claim 1, wherein: the auxiliary unit comprises a cylindrical pin (402), an inner hole (401) is formed in the U-shaped plate (2), and the cylindrical pin (402) is located in the middle of the positioning assembly (4) and is arranged in the inner hole (401).

3. A special fixture for a lathe for processing an inner hole to prevent deformation according to claim 2, wherein: the outer wall of the cylindrical pin (402) is in sliding connection with the inside of the inner hole (401), and the top of the cylindrical pin (402) is abutted with the bottom of the machined piece (3).

4. A special fixture for a lathe for processing an inner hole to prevent deformation according to claim 1, wherein: the fixing unit comprises a T-shaped bolt (403) and a nut (404), wherein the T-shaped bolt (403) is arranged at the bottom of the U-shaped plate (2), and the nut (404) is arranged above the machined part (3).

5. A special fixture for a lathe for machining an inner hole to prevent deformation according to claim 4, wherein: the top of T type bolt (403) runs through cylindric lock (402), machined part (3) and nut (404) to extend to the top of nut (404), the outer wall of T type bolt (403) respectively with cylindric lock (402) inside and machined part (3) by the inner wall sliding connection who runs through, the gasket is installed to the bottom of nut (404), nut (404) and T type bolt (403) adaptation.

6. A special fixture for a lathe for processing an inner hole to prevent deformation according to claim 1, wherein: the connecting assembly (5) comprises a connecting bolt (501), the connecting bolt (501) is arranged in the U-shaped plate (2), and a connecting hole (502) is formed in the connecting disc (1).

7. A special fixture for a lathe adapted for machining an inner hole to prevent deformation according to claim 6, wherein: one end of the connecting bolt (501) penetrates through the U-shaped plate (2) and extends to the inside of the connecting hole (502), the outer wall of the connecting bolt (501) is in sliding connection with the inner wall of the U-shaped plate (2) penetrated through, and the connecting bolt (501) is matched with the connecting hole (502).