CN218575562U

CN218575562U - Clamping tool for part with outer circle and protruding structure

Info

Publication number: CN218575562U
Application number: CN202223200365.8U
Authority: CN
Inventors: 马嘉龙; 王通; 史靖弘; 刘玲
Original assignee: Xi'an Chengli Aviation Manufacturing Co ltd
Current assignee: Xi'an Chengli Aviation Manufacturing Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-07
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a clamping tool for a part with a convex structure on the excircle, which comprises an inner clamping sleeve and an outer clamping sleeve; the inner jacket is provided with avoidance grooves which penetrate to the top end of the inner jacket, and the outer wall of the inner jacket is provided with arc-shaped convex blocks between adjacent avoidance grooves, and the arc-shaped convex blocks are all positioned on the same circumference; a plurality of grooves are uniformly distributed on the outer jacket along the circumferential direction and run through to the top end of the outer jacket. The utility model discloses a clamping frock simple structure, it is convenient to install, and is fixed firm, has ensured the processingquality of part.

Description

Clamping tool for part with outer circle and protruding structure

Technical Field

The utility model relates to a parts car processing technology field especially relates to a clamping frock that is used for the excircle and has the part of protruding structure.

Background

Various parts are encountered in the aeronautical field, many of which require machining after they have been formed. When the turning machine is used for turning, parts with outer circles can be frequently encountered, and protruding structures extend out of the outer circles of the parts. When the parts of the type are machined, the interference problem often occurs when the parts are directly clamped by three claws or soft claws of a lathe and the like. A clamping tool is designed to clamp and fix the part of the type, so that the problem of clamping interference of the part is avoided, and the processing quality of the part is ensured.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a clamping tool for a part with a raised structure on an outer circle, which has a simple structure, is convenient to mount, is stable and stable in fixation, and can ensure the processing quality of the part.

The utility model provides a clamping tool for a part with a convex structure on the excircle, which comprises an inner clamping sleeve and an outer clamping sleeve which is sleeved on the periphery of the inner clamping sleeve in a clearance fit manner; avoidance grooves which correspond to the special-shaped protruding structures on the periphery of the part in a one-to-one mode are formed in the inner jacket, the avoidance grooves penetrate through to the top end of the inner jacket, circular arc-shaped convex blocks are arranged between the adjacent avoidance grooves on the outer wall of the inner jacket, and the circular arc-shaped convex blocks are located on the same circumference; and a plurality of grooves are uniformly distributed on the outer jacket along the circumferential direction, and run through to the top end of the outer jacket.

Furthermore, the type grooves and the avoiding grooves are distributed in a staggered mode.

Further, a first supporting plate is fixedly arranged at the bottom of the inner jacket, and a first type hole is formed in the first supporting plate; and a second supporting plate is fixedly arranged at the bottom of the outer jacket, and a second type hole is formed in the second supporting plate.

Further, the inner jacket, the arc-shaped convex block and the first supporting plate are integrally formed; the outer jacket and the second support plate are integrally formed.

Furthermore, the inner jacket and the outer jacket are both made of elastic steel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a clamping frock is pressed from both sides the cover by the interior clamp and is constituteed with the outer cover. When the part with the outer circle and the protruding structure is clamped, the protruding structures on the periphery of the part are firstly aligned one by one to avoid the grooves, the part is embedded into the inner jacket, and the protruding structures are embedded into the avoidance grooves. Then the outer jacket is sleeved on the inner jacket, and when the outer jacket is sleeved, the groove and the avoiding groove are staggered, so that the parts can be ensured to be uniformly clamped. After the part is clamped, the outer jacket is clamped by the clamping jaw of the lathe, the outer jacket contracts after being stressed, the inner jacket contracts after being extruded, and the part is tightly held and fixed. At this time, the parts can be processed. The clamping tool is simple in structure, convenient to install, stable and firm in fixation, and the machining quality of parts is guaranteed.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of a clamping tool;

FIG. 2 is a schematic structural view of an inner jacket;

reference numbers in the figures: 1. an inner jacket; 2. an outer jacket;

11. an avoidance groove; 12. a circular arc-shaped bump; 13. a first support plate; 14. a first type hole;

21. a profiled groove; 22. a second support plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 2, an embodiment of the present invention provides a clamping tool for a part having a raised structure and an outer circle, including an inner jacket 1 and an outer jacket 2 sleeved on the outer periphery of the inner jacket 1 in a clearance fit manner; the inner jacket 1 is provided with avoidance grooves 11 which correspond to the special-shaped protruding structures on the periphery of the part one by one, the avoidance grooves 11 penetrate through to the top end of the inner jacket 1, circular arc-shaped lugs 12 are arranged on the outer wall of the inner jacket 1 between the adjacent avoidance grooves 11, and the circular arc-shaped lugs 12 are all located on the same circumference; a plurality of grooves 21 are uniformly distributed on the outer jacket 2 along the circumferential direction, and the grooves 21 are communicated with the top end of the outer jacket 2.

In this embodiment, before a part with a raised structure on the outer circle is clamped, the inner jacket 1 and the outer jacket 2 are in a separated state. When clamping a part, the part is embedded into the inner jacket 1, the protruding structures on the periphery of the part are respectively embedded into the avoiding grooves 11, and the outer jacket 2 is sleeved on the periphery of the inner jacket 1 to finish clamping.

After the part is clamped, the outer jacket 2 is clamped by a clamping jaw of a lathe, the outer jacket 2 contracts after being stressed, the inner jacket 1 is extruded by the arc-shaped convex block 12 to contract, and the part is tightly held and fixed by the inner jacket 1. At this time, the parts can be machined.

The clamping tool is simple in structure, convenient to install, stable and firm in fixation, and the machining quality of parts is guaranteed.

In a preferred embodiment, as shown in fig. 1, the grooves 11 and the avoidance grooves 21 are distributed in a staggered manner. When the outer jacket 2 is sleeved, the groove 11 and the avoidance groove 21 are staggered, so that the parts can be ensured to be evenly clamped. And the problem of plastic deformation caused by overlarge deformation of the outer jacket 2 can be avoided.

In a preferred embodiment, as shown in fig. 1 and fig. 2, a first supporting plate 13 is fixedly arranged at the bottom of the inner jacket 1 and used for supporting parts embedded into the inner jacket 1, and a first type hole 13 is formed in the first supporting plate 13 to reduce the self weight of the clamping tool; the bottom of outer jacket 2 is fixed and is provided with second backup pad 22 for support inner jacket 1, seted up the second type hole on the second backup pad 22, in order to reduce the dead weight of clamping frock.

In a preferred embodiment, as shown in fig. 1 and 2, the inner jacket 1 is integrally formed with the circular arc shaped protrusion 12 and the first support plate 13; the outer jacket 2 is integrally formed with the second support plate 22.

In a preferred embodiment, as shown in fig. 1, the inner jacket 1 and the outer jacket 2 are both made of elastic steel, and the clamping force of the lathe clamping jaw is matched by utilizing the characteristics of easy deformation and easy rebound of the elastic steel, so that the part is perfectly attached to the clamping tool, and the clamping and fixing effects are good.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping tool for a part with an excircle and a convex structure is characterized by comprising an inner clamping sleeve and an outer clamping sleeve which is in clearance fit and sleeved on the periphery of the inner clamping sleeve; avoidance grooves which correspond to the special-shaped protruding structures on the periphery of the part one by one are formed in the inner jacket, the avoidance grooves penetrate through to the top end of the inner jacket, circular arc-shaped convex blocks are arranged between the adjacent avoidance grooves on the outer wall of the inner jacket, and the circular arc-shaped convex blocks are located on the same circumference; and a plurality of grooves are uniformly distributed on the outer jacket along the circumferential direction, and the grooves penetrate through to the top end of the outer jacket.

2. The clamping tool for the part with the outer circle and the protruding structure according to claim 1, wherein the type grooves and the avoiding grooves are distributed in a staggered mode.

3. The clamping tool for the part with the outer circle and the convex structure according to claim 1, wherein a first supporting plate is fixedly arranged at the bottom of the inner jacket, and a first type hole is formed in the first supporting plate; and a second supporting plate is fixedly arranged at the bottom of the outer jacket, and a second type hole is formed in the second supporting plate.

4. The clamping tool for the part with the outer circle and the protruding structure according to claim 3, wherein the inner jacket is integrally formed with the arc-shaped convex block and the first support plate; the outer jacket and the second support plate are integrally formed.

5. The clamping tool for the part with the outer circle and the protruding structure according to claim 4, wherein the inner jacket and the outer jacket are both made of elastic steel.