CN214263943U

CN214263943U - Excircle turning clamp for thin-wall workpiece

Info

Publication number: CN214263943U
Application number: CN202022871420.0U
Authority: CN
Inventors: 龙浩
Original assignee: Xi'an Jiecheng Youhe Intelligent Technology Co ltd
Current assignee: Xi'an Jiecheng Youhe Intelligent Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-24
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to an excircle turning scrap adds clamping apparatus of thin wall work piece, including coupling assembling, anchor clamps body and butt part, adapting unit is connected with the main shaft of lathe, install in the tail end of main shaft, make anchor clamps and main shaft integration, the anchor clamps body can be dismantled with coupling assembling and be connected, can be quick connect and separate, butt part one end and this body coupling of anchor clamps, the other end is installed on the tailstock of lathe, add man-hour with a terminal surface butt of part, this application provides an excircle turning scrap adds clamping apparatus of thin wall work piece, can realize changing fast of product processing and produce, produce the fast switch-over of line production and unit production, can fix the both ends of thin wall key excircle turning scrap simultaneously, make work piece and anchor clamps integration, very big improvement the qualification rate of product.

Description

Excircle turning clamp for thin-wall workpiece

Technical Field

The utility model belongs to the technical field of the product processing, especially, relate to an excircle turning attachment of thin wall work piece.

Background

The excircle of the thin-wall tubular part is turned and chipped, and the thin-wall tubular part is easy to deform and crack in the machining process due to the poor rigidity of the thin-wall part and cannot be machined by using the traditional internal support or external clamp method. By using the method of profiling inner support, an elastic deformation area exists between a contact area and a fixed connection area of a workpiece, the center positioning of the workpiece has unreliability, medium-sized and large-sized parts are too heavy due to large clamps, the processing quality is difficult to ensure the technical requirements, the technical requirements on workers are high, the quality stability of products is poor, and the qualification rate is quite low.

The method of clamping by using a profile chuck with two centering ends and tensioning a tailstock is adopted, but the method is suitable for products with small diameter and longer length, but for parts with the length-diameter ratio being larger than that of 2.5, such as thin-wall parts shown in figure 1, the qualification rate of the products is low due to the torsional deformation caused by inertia when the processing is started and stopped in an active mode at one end and a passive mode at the other end.

SUMMERY OF THE UTILITY MODEL

The utility model provides a excircle turning attachment of thin wall work piece can realize the quick trade of product processing and produce, produces the fast switch-over of line production and unit production, can fix the both ends of thin wall key excircle turning attachment simultaneously for work piece and anchor clamps integration, very big improvement the qualification rate of product.

In order to solve the problems in the background art, the utility model discloses a realize through following technical scheme:

an excircle turning clamp for a thin-wall workpiece comprises a connecting part, a clamp body and a butting part;

the connecting part is connected with a main shaft of the lathe and is arranged at the tail end of the main shaft, so that the clamp and the main shaft are integrated, the clamp body is detachably connected with the connecting part and can be quickly connected and separated, one end of the abutting part is connected with the clamp body, the other end of the abutting part is arranged on a tailstock of the lathe and abuts against one end face of a part during machining.

As a further explanation of the utility model: the connecting part comprises an oil circuit/circuit converter and a quick-change substrate, one end of the oil circuit/circuit converter is connected with the tail end of the lathe spindle, the other end of the oil circuit/circuit converter extends into the quick-change substrate to be connected with the quick-change substrate, a connecting hole is formed in the center of the quick-change substrate, a hollow cylinder is arranged on one side, close to the oil circuit/circuit converter, of the quick-change substrate, the hollow cylinder is communicated with the connecting hole, the radiuses of the hollow cylinder and the connecting hole are matched with the oil circuit/circuit converter, and one side, far away from the oil circuit/circuit converter.

As a further explanation of the utility model: the fixture body comprises a hydraulic chuck, a core seat, a self-centering internal expansion and external clamping mechanism, a core and a profiling expansion block, one end of the hydraulic chuck is detachably connected with the quick-change base plate and can be quickly connected and separated, one end of the self-centering internal expansion and external clamping mechanism is connected with the hydraulic chuck, the other end of the self-centering internal expansion and external clamping mechanism is connected with the core seat, the core is installed at the center of the core seat, one end, far away from the core seat, of the core is connected with the profiling expansion block, and the core seat is concentric with a main shaft of a machine tool.

As a further explanation of the utility model: the edge of the side wall of the quick-change base plate, which is far away from the oil circuit/circuit converter, is provided with a socket, and the edge of the side wall of the hydraulic chuck, which is close to the quick-change base plate, is provided with a plug connector which is matched with the socket.

As a further explanation of the utility model: and the core is provided with a limiting pin for preventing the workpiece from rotating on the clamp.

As a further explanation of the utility model: the butt joint component comprises a rear mandrel, a limiting disc and a tail top, the rear mandrel is connected with the core and is arranged at the center of one end face of the core, one end of the limiting disc is connected with the rear mandrel, and the other end of the limiting disc is connected with the tail top.

As a further explanation of the utility model: the limiting disc is a profiling body with a cone inside and is used for tightly propping the end face of the workpiece and simultaneously tightly holding the excircle of the workpiece by the inner cone.

Compared with the prior art, the utility model discloses following profitable technological effect has:

1. the quick-change base plate and the hydraulic chuck can be quickly connected and separated, so that the quick product change of product processing is realized, and the quick switching between production line production and single-machine production can be realized.

2. It is fixed with the both ends of pipe fitting and excircle turning, and the work piece that is sets up with anchor clamps integration, has got rid of the influence of all external forces in the product course of working, very big improvement the qualification rate of product.

Drawings

Fig. 1 is a schematic view of a prior art structure of the present invention;

FIG. 2 is a schematic view of another prior art view of the present invention

Fig. 3 is a schematic diagram of the explosion structure of the present invention;

fig. 4 is a schematic view of the overall structure of the present invention.

Description of the reference numerals

1. An oil/circuit converter; 2. a hydraulic chuck; 3. a core print; 4. a self-centering inner expanding and outer clamping mechanism; 5. a core; 6. a profiling expansion block; 7. carrying out tail jacking; 8. a limiting disc; 9. a spacing pin; 10. a rear mandrel; 11. and (5) quickly replacing the substrate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, an outer circle turning clamp for a thin-walled workpiece includes a connecting member, a clamp body, and an abutting member.

Specifically, the connecting part comprises an oil path/circuit converter 1 and a quick-change substrate 11, one end of the oil path/circuit converter 1 is connected with the tail end of the lathe spindle, the other end of the oil path/circuit converter extends into the quick-change substrate 11 and is connected with the quick-change substrate 11, a connecting hole is formed in the center of the quick-change substrate 11, a hollow cylinder is arranged on one side, close to the oil path/circuit converter 1, of the quick-change substrate 11, the hollow cylinder is communicated with the connecting hole, the radiuses of the hollow cylinder and the connecting hole are matched with the oil path/circuit converter 1, and a plug-in port is arranged on the edge of the side wall, far away from the oil path/circuit converter 1, of the quick-change substrate 11.

The application provides the anchor clamps body includes hydraulic chuck 2, core print 3, from centering internal expanding outer clamp mechanism 4, core 5 and profile modeling piece 6 hydraulic chuck 2 is close to the edge of 11 one side lateral walls of quick change base plate be provided with the plug connector that interface cooperation set up makes it can with quick change base plate 11 can dismantle the connection, connection and separation that can be quick, from centering internal expanding outer clamp mechanism 4 one end with hydraulic chuck 2 is connected, the other end with core print 3 is connected, core 5 install in core print 3 center, core 5 keeps away from core print 3's one end with profile modeling piece 6 is connected install spacer pin 9 on core 5 for prevent that the work piece from rotating on anchor clamps, core print 3 is concentric with the main shaft of lathe.

The butt joint part includes back dabber 10, spacing dish 8 and tail top 7, back dabber 10 with core 5 is connected, install in the center of 5 one end terminal surfaces of core, spacing dish 8 one end with back dabber 10, the other end with tail top 7 is connected, spacing dish 8 is the inside profiling body that is the cone for hold the excircle of work piece tightly with interior awl when the terminal surface of top tight work piece.

The working process is as follows:

the quick-change base plate 11 is a basic connection of the fixture, and can be quickly connected with or separated from the plurality of hydraulic chucks 2, so that the quick change of the plurality of fixtures is realized, and the flexible processing of processed products is met.

After a workpiece enters a clamp, a hydraulic chuck 2 carries out axial positioning on the workpiece, a core seat 3 and a self-centering internal expansion external clamping mechanism 4 start communication clamping, after the communication clamping is completed, a tail top 7 starts ejection, a limiting disc 8 and a rear mandrel 10 are pushed to move towards a machine tool direction, the limiting disc 8 limits the excircle of the workpiece, the rear mandrel 10 simultaneously pushes a profiling expansion block 6 to limit the inner circle of a product, a limiting pin 9 extends out to limit the rotation of the product, after the clamping of the product is completed, a machining starting signal is output, the machining of the product is completed, the clamp is sequentially opened in the opposite clamping direction and in the order, and the work is completed.

The embodiments given above are preferred examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical features of the technical solution of the present invention by those skilled in the art all belong to the protection scope of the present invention.

Claims

1. The utility model provides an excircle turning attachment of thin wall work piece which characterized in that: comprises a connecting component, a clamp body and an abutting component;

2. The cylindrical turning clamp for the thin-wall workpiece according to claim 1, characterized in that: the connecting part comprises an oil circuit/circuit converter and a quick-change substrate, one end of the oil circuit/circuit converter is connected with the tail end of the lathe spindle, the other end of the oil circuit/circuit converter extends into the quick-change substrate to be connected with the quick-change substrate, a connecting hole is formed in the center of the quick-change substrate, a hollow cylinder is arranged on one side, close to the oil circuit/circuit converter, of the quick-change substrate, the hollow cylinder is communicated with the connecting hole, the radiuses of the hollow cylinder and the connecting hole are matched with the oil circuit/circuit converter, and one side, far away from the oil circuit/circuit converter, of the quick-change substrate is connected with the clamp body.

3. The cylindrical turning clamp for the thin-wall workpiece according to claim 2, characterized in that: the fixture body comprises a hydraulic chuck, a core seat, a self-centering internal expansion and external clamping mechanism, a core and a profiling expansion block, one end of the hydraulic chuck is detachably connected with the quick-change base plate and can be quickly connected and separated, one end of the self-centering internal expansion and external clamping mechanism is connected with the hydraulic chuck, the other end of the self-centering internal expansion and external clamping mechanism is connected with the core seat, the core is installed at the center of the core seat, one end, far away from the core seat, of the core is connected with the profiling expansion block, and the core seat is concentric with a main shaft of a machine tool.

4. The cylindrical turning clamp for the thin-wall workpiece according to claim 3, characterized in that: the edge of the side wall of the quick-change base plate, which is far away from the oil circuit/circuit converter, is provided with a socket, and the edge of the side wall of the hydraulic chuck, which is close to the quick-change base plate, is provided with a plug connector which is matched with the socket.

5. The cylindrical turning clamp for the thin-wall workpiece according to claim 3, characterized in that: and the core is provided with a limiting pin for preventing the workpiece from rotating on the clamp.

6. The cylindrical turning clamp for the thin-wall workpiece according to claim 3, characterized in that: the butt joint component comprises a rear mandrel, a limiting disc and a tail top, the rear mandrel is connected with the core and is installed in the center of one end face of the core, one end of the limiting disc is connected with the rear mandrel, and the other end of the limiting disc is connected with the tail top.

7. The cylindrical turning clamp for the thin-wall workpiece according to claim 6, characterized in that: the limiting disc is a profiling body with a cone inside and is used for tightly propping the end face of the workpiece and simultaneously tightly holding the excircle of the workpiece by the inner cone.