CN216066499U

CN216066499U - Clamp for processing disc hub

Info

Publication number: CN216066499U
Application number: CN202122851548.5U
Authority: CN
Inventors: 梁文涛
Original assignee: Zhejiang Wanbang Automotive Power System Co ltd
Current assignee: Zhejiang Wanbang Automotive Power System Co ltd
Priority date: 2021-11-20
Filing date: 2021-11-20
Publication date: 2022-03-18
Anticipated expiration: 2031-11-20

Abstract

The utility model provides a clamp for machining a disc hub, and belongs to the technical field of machine tool clamping components. The clamping device solves the problems that the axial distance for pushing the chuck out of the workpiece to be clamped by the existing push-pull rod is large, and the workpiece is unstably clamped by the chuck. This anchor clamps that dish hub processing was used includes the ring flange and can dismantle the chuck seat that links firmly with the ring flange, the chuck pipe is worn to be equipped with on the chuck seat to slide, the exposed core of chuck pipe has the elasticity clamping jaw that expands the toper setting outward, be provided with the toper flaring on the chuck seat, the elasticity clamping jaw of this chuck pipe and the toper flaring elasticity of chuck seat support and lean on the cooperation, be provided with between chuck pipe and the chuck seat and prevent that chuck pipe axial displacement from leading to the elasticity clamping jaw of chuck pipe and the toper flaring elasticity of chuck seat support and support the limit structure who breaks away from. The axial distance that the chuck pipe stretches out is less, and the elasticity clamping jaw centre gripping work piece of chuck pipe is difficult for dropping, stable in structure, convenient to use.

Description

Clamp for processing disc hub

Technical Field

The utility model belongs to the technical field of machine tool clamping components, and relates to a clamp for machining a disc hub.

Background

There are many inner hole positioning clamps used in existing machine tools, for example, chinese patent literature discloses an inner hole positioning clamp [ application number: 201320700007.5, respectively; authorization notice number: CN203579229U ], the structure of which comprises a flange, wherein a chuck is arranged on one side of the flange in a penetrating manner and is connected with the flange by screw threads, the chuck comprises a connecting part connected with the flange and a cylindrical elastic part, one end of the elastic part far away from the connecting part is provided with a tapered hole, and the chuck is arranged with a push-pull rod in a penetrating manner and the outer end of the push-pull rod can abut against the hollow wall of the tapered hole.

In the inner hole positioning clamp, the push-pull rod is not provided with a limiting structure, the chuck clamps the workpiece, the axial distance for pushing the chuck out of the workpiece clamping device by the push-pull rod is large, and when the push-pull rod is pushed out and shaken, the chuck clamps the workpiece and is easy to fall off, so that the use is inconvenient.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides the clamp for processing the disc hub, which has the advantages of simple structure, stable structure, capability of limiting and adjusting the axial displacement of the chuck tube and convenience in use.

The purpose of the utility model can be realized by the following technical scheme: a clamp for processing a disc hub comprises a flange plate and a clamp head seat detachably and fixedly connected with the flange plate, wherein a clamp head pipe penetrates through the clamp head seat in a sliding mode, a clamping end of the clamp head pipe is provided with an elastic clamping jaw which is externally extended and provided with a conical flaring, the clamp head seat is provided with a conical flaring, the elastic clamping jaw of the clamp head pipe is elastically abutted and matched with the conical flaring of the clamp head seat, the clamp is characterized in that a limiting structure which can prevent the elastic clamping jaw of the clamp head pipe from being abutted and separated with the conical flaring of the clamp head seat due to axial displacement of the clamp head pipe is arranged between the clamp head pipe and the clamp head seat, the limiting structure comprises a limiting nut, one end, far away from the elastic clamping jaw, of the clamp head pipe extends out of the clamp head seat to form a limiting end, the outer wall of the limiting end of the clamp head pipe is provided with an external thread, the limiting nut is connected to the external thread of the limiting end of the clamp head pipe in a spiral mode, the limiting nut and the chuck seat are axially abutted and matched.

The axial abutting fit of the limiting nut and the chuck base can effectively prevent the chuck pipe from displacing in the clamping direction of the chuck base towards the elastic clamping jaw of the chuck pipe, so that the elastic clamping jaw of the chuck pipe and the conical flaring of the chuck base always process an elastic abutting fit state, the structure is stable, and the elastic clamping jaw of the chuck pipe and the conical flaring of the chuck base can be effectively prevented from being elastically abutted and separated; when the chuck tube axially retracts to the chuck seat in practical use, the diameter of the radial expansion of the elastic clamping jaw of the chuck tube is smaller than the diameter of an inner hole of a workpiece to be processed, and the elastic clamping jaw is used for penetrating into the inner hole of the workpiece to be processed; when the chuck tube axially extends out of the chuck seat, the diameter of the radial expansion of the elastic clamping jaw of the chuck tube is larger than the diameter of the inner hole of the workpiece to be processed, and the elastic clamping jaw is used for outwards expanding and fixing the elastic clamping jaw in the inner hole of the workpiece to be processed.

In the above-mentioned fixture for processing a disk hub, the elastic clamping jaws are distributed in an annular array at the clamping end of the chuck tube by taking the axial lead of the chuck tube as the center of a circle, and a spacing groove is formed between two adjacent elastic clamping jaws. The spacing groove is used for the deformation position of the elastic clamping jaw which is radially expanded or reduced, and the structure is stable.

In the above-mentioned disk hub processing clamp, the chuck base is detachably and fixedly connected with a support member which is convexly arranged, the elastic clamping jaw of the chuck tube passes through the support member to be used for clamping a workpiece, and a limiting assembly structure is arranged between the support member and the chuck base. The supporting piece is used for supporting a workpiece to be machined, and when the chuck pipe axially retracts into the chuck base, the workpiece to be machined and the supporting piece are axially supported and fixed.

In the above-mentioned fixture for processing a disc hub, the support member includes an annular seat and a support sleeve connected with the annular seat as an integral structure, and the annular seat is axially detachably and fixedly connected with the chuck seat through a bolt. This is provided to improve the overall mechanical strength of the support.

In the above-mentioned anchor clamps of disc hub processing usefulness, spacing assembly structure include that the inner fringe department of the assembly end of annular seat has an inner ring groove, the chuck base on have an annular boss that evagination set up, the inner ring groove cover of annular seat establish the annular boss of chuck base on. The conical flaring of the chuck seat is formed by penetrating the annular boss of the chuck seat.

In the above-mentioned fixture for processing a disc hub, a push-pull rod is inserted through the limit end of the chuck tube, and the free end of the push-pull rod is detachably connected with an oil cylinder. The purpose of the arrangement is convenient for the oil cylinder to act on the push-pull rod to drive the push-pull rod to axially displace.

In the above-mentioned fixture for processing a disk hub, a cylindrical threaded sleeve is spirally connected to a free end of the push-pull rod, and the threaded sleeve is used for connecting an oil cylinder. In actual use, the clamp for machining the hub is installed on a connecting disc of a lathe through a flange, the connecting disc is provided with an inner channel, and the threaded sleeve is axially and slidably located in the inner channel of the connecting disc.

Compared with the prior art, this anchor clamps of dish hub processing usefulness's advantage does: structural design is reasonable, simple, can set up the axial displacement distance of chuck pipe in advance on the chuck pipe through stop nut, and the diameter that only needs the elasticity clamping jaw of chuck pipe to radially open slightly is greater than the hole diameter of the work piece that needs processing, and the axial distance that the chuck pipe stretches out is less, and the elasticity clamping jaw centre gripping work piece of chuck pipe is difficult for dropping convenient to use.

Drawings

Fig. 1 is a schematic sectional view of the present jig for hub machining.

In the figure, 1, a flange plate; 2. a chuck base; 3. a chuck tube; 4. an elastic clamping jaw; 5. a limit nut; 6. an annular seat; 7. a support sleeve; 8. an annular boss; 9. a push-pull rod; 10. a threaded sleeve; 11. and (7) connecting the disc.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the clamp for processing the disc hub mainly comprises a flange plate 1 and a clamp base 2 detachably and fixedly connected with the flange plate 1, the flange plate 1 is arranged to be fixed on a connecting disc 11 of a lathe, a clamp tube 3 penetrates through the clamp base 2 in a sliding manner, a clamping end of the clamp tube 3 is provided with an elastic clamping jaw 4 which is arranged in an outward-expanding conical manner, a conical expanding opening is formed in the clamp base 2, the elastic clamping jaw 4 of the clamp tube 3 is elastically abutted and matched with the conical expanding opening of the clamp base 2, and a limiting structure which can prevent the elastic clamping jaw 4 of the clamp tube 3 from being disengaged from the conical elastic expanding opening of the clamp base 2 due to axial displacement of the clamp tube 3 is arranged between the clamp tube 3 and the clamp base 2; during actual manufacturing, the specific implementation mode of the limiting structure is as follows: the clamping head mainly comprises a limiting nut 5, one end of a clamping head pipe 3, far away from an elastic clamping jaw 4, extends out of a clamping head seat 2 to form a limiting end, an external thread is arranged on the outer wall of the limiting end of the clamping head pipe 3, the limiting nut 5 is connected to the external thread of the limiting end of the clamping head pipe 3 in a spiral mode, and the limiting nut 5 and the clamping head seat 2 are axially abutted and matched; a push-pull rod 9 penetrates through the limiting end of the chuck tube 3, a cylindrical threaded sleeve 10 is connected to the free end of the push-pull rod 9 in a threaded manner, and the threaded sleeve 10 is used for connecting an oil cylinder; in practical application, the connecting disc 11 of the lathe is provided with an inner channel, and the threaded sleeve 10 is slidably arranged in the inner channel of the connecting disc 11 of the lathe.

During actual manufacturing, the elastic clamping jaws 4 are distributed in an annular array at the clamping end of the chuck tube 3 by taking the axial lead of the chuck tube 3 as the center of a circle, and a spacing groove is formed between every two adjacent elastic clamping jaws 4.

During actual manufacturing, the chuck base 2 is detachably and fixedly connected with a support piece which is convexly arranged, the elastic clamping jaw 4 of the chuck tube 3 penetrates through the support piece to be used for clamping a workpiece, the support piece mainly comprises an annular seat 6 and a support sleeve 7 which is connected with the annular seat 6 into a whole, and the annular seat 6 is axially and detachably and fixedly connected with the chuck base 2 through a bolt; a limiting assembly structure is arranged between the supporting piece and the chuck seat 2; the specific implementation mode of the limiting assembly structure is as follows: an inner ring groove is formed in the inner edge of the assembling end of the annular seat 6, an annular boss 8 protruding outwards is arranged on the chuck seat 2, and the inner ring groove of the annular seat 6 is sleeved on the annular boss 8 of the chuck seat 2.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The fixture for processing the disc hub comprises a flange plate (1) and a chuck seat (2) detachably and fixedly connected with the flange plate (1), wherein a chuck tube (3) penetrates through the chuck seat (2) in a sliding manner, an elastic clamping jaw (4) with an outward-expanding cone shape is arranged at the clamping end of the chuck tube (3), a cone-shaped expanding opening is arranged on the chuck seat (2), the elastic clamping jaw (4) of the chuck tube (3) and the cone-shaped expanding opening of the chuck seat (2) are elastically abutted and matched, the fixture is characterized in that a limiting structure which can prevent the elastic clamping jaw (4) of the chuck tube (3) and the cone-shaped expanding opening of the chuck seat (2) from being abutted and separated due to axial displacement of the chuck tube (3) is arranged between the chuck tube (3) and the chuck seat (2), the limiting structure comprises a limiting nut (5), one end, far away from the elastic clamping jaw (4), of the chuck tube (3, extends out of the chuck seat (2) to form a limiting end, the outer wall of the limiting end of the chuck tube (3) is provided with an external thread, the limiting nut (5) is connected to the external thread of the limiting end of the chuck tube (3) in a spiral mode, and the limiting nut (5) and the chuck seat (2) are axially abutted to be matched.

2. The clamp for processing the disc hub as claimed in claim 1, wherein the elastic clamping jaws (4) are distributed at the clamping end of the chuck tube (3) in an annular array by taking the axial lead of the chuck tube (3) as the center of a circle, and a spacing groove is formed between every two adjacent elastic clamping jaws (4).

3. The fixture for processing the disc hub as claimed in claim 2, wherein the chuck base (2) is detachably and fixedly connected with a support member which is arranged in a protruding manner, the elastic clamping jaw (4) of the chuck tube (3) penetrates through the support member to clamp a workpiece, and a limiting assembly structure is arranged between the support member and the chuck base (2).

4. A fixture for processing a disc hub according to claim 3, wherein the supporting member comprises an annular seat (6) and a supporting sleeve (7) which is connected with the annular seat (6) into a whole, and the annular seat (6) is axially detachably and fixedly connected with the chuck seat (2) through bolts.

5. A disc hub machining clamp according to claim 4, characterized in that the limiting assembling structure comprises an annular seat (6) with an inner annular groove at the inner edge of the assembling end, the chuck seat (2) is provided with an annular boss (8) protruding outwards, and the inner annular groove of the annular seat (6) is sleeved on the annular boss (8) of the chuck seat (2).

6. A chuck for use in processing a hub according to claim 1, 2, 3, 4 or 5, wherein a push-pull rod (9) is inserted through the limit end of the chuck tube (3), and the free end of the push-pull rod (9) is used for detachably connecting the oil cylinder.

7. A chuck for use in connection with machining of a hub as claimed in claim 6, wherein the free end of the push-pull rod (9) is threadedly engaged with a cylindrical threaded sleeve (10), the threaded sleeve (10) being adapted for connection with a cylinder.