CN214602003U

CN214602003U - Multipurpose clamp numerical control lathe

Info

Publication number: CN214602003U
Application number: CN202120367584.1U
Authority: CN
Inventors: 汤熙华; 李继泰; 黄威
Original assignee: Hunan Maigu Technology Co ltd
Current assignee: Hunan Maigu Technology Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-11-05
Anticipated expiration: 2031-02-07

Abstract

The utility model discloses a multi-purpose clamp numerical control lathe, which comprises a multi-jaw clamp and a driving device, wherein the multi-jaw clamp comprises a chuck and a plurality of jaws, the jaws are uniformly distributed around a rotating shaft of the chuck and move in opposite directions or in opposite directions along the radial direction of the chuck towards the rotating shaft of the chuck under the driving of the driving device, and the jaws are provided with working blocks; the working block is provided with a plurality of working surfaces which are used for contacting with the clamping surfaces of the parts, the working surfaces are parallel to the rotating shaft of the chuck, and the working surfaces are distributed in a step shape from the bottom to the top of the working block; and the driving device drives the clamping jaws to move to each clamping position where each working surface is contacted with the clamping surface of the part, and correspondingly drives each machining operation of the numerically controlled lathe to start and stop. The utility model discloses a multipurpose clamp numerical control lathe has simple and practical, reduces switching step, simplifies the course of working, reduces advantages such as input cost and degree of automation height.

Description

Multipurpose clamp numerical control lathe

Technical Field

The utility model relates to a lathe structure technical field especially relates to a multi-purpose anchor clamps numerical control lathe.

Background

When the conventional numerically controlled lathe is used for processing workpieces in batches, only one numerically controlled lathe can use one set of special fixture to perform one process, and when the processes are switched, the fixture and the processing process need to be correspondingly switched. When complex workpieces are produced in the production process, the number of required machining fixtures and numerical control lathes is large, the investment cost is high, the occupied space is large, and the requirement on the area of a factory building is high; moreover, the machining program needs to be switched and the clamp needs to be replaced frequently, so that a large amount of time is occupied, and the machining process is complicated; and meanwhile, more stations are required to be added, so that the labor cost is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple and practical, reduce switching step, simplify the course of working, reduce input cost and degree of automation high multipurpose clamp numerical control lathe.

In order to solve the technical problem, the utility model provides a technical scheme does:

a multi-clamp numerical control lathe comprises a multi-jaw clamp and a driving device, wherein the multi-jaw clamp comprises a chuck and a plurality of jaws, the jaws are uniformly distributed around a rotating shaft of the chuck and move in opposite directions or move back to back along the radial direction of the chuck towards the rotating shaft of the chuck under the driving of the driving device, and working blocks are arranged on the jaws; the working block is provided with a plurality of working surfaces which are used for contacting with the clamping surfaces of the parts, the working surfaces are parallel to the rotating shaft of the chuck, and the working surfaces are distributed in a step shape from the bottom to the top of the working block; and the driving device drives the clamping jaws to move to each clamping position where each working surface is contacted with the clamping surface of the part, and correspondingly drives each machining operation of the numerically controlled lathe to start and stop.

As a further improvement of the above technical solution:

the surface of the chuck is provided with a step-shaped round table, the step-shaped round table is provided with positioning surfaces which are used for being in contact with the axial positioning end of the part, and each positioning surface is perpendicular to the rotating shaft of the chuck.

Each positioning surface is respectively positioned and clamped corresponding to each working surface, and the height of each positioning surface is not lower than the bottom edge of the corresponding working surface.

Each working face is arranged on the side face, far away from the rotating shaft of the chuck, in the working block, and is close to the rotating shaft of the chuck step by step from the bottom to the top of the working block, and each clamping jaw moves back to clamp the clamping face of the part or moves oppositely to release the clamping face of the part.

The adjustable working block is characterized in that an adjusting hole is formed in the working block, an opening in one end of the adjusting hole is formed in the working face, an adjusting screw is connected to the inside of the adjusting hole in a matched mode, and the end portion of the adjusting screw can stretch out of the working face through the opening.

The driving device is a hydraulic driving device which drives the clamping jaws to move relative to the chuck.

The hydraulic driving device comprises a shell and a pull rod, and the pull rod drives the clamping jaws to move to different positions so that the axial positions of the pull rod relative to the shell are different; and a plurality of travel switches for detecting the position of the pull rod are arranged at each clamping position of the shell corresponding to the clamping jaws, and the travel switches correspondingly control the start and stop of each machining operation of the numerically controlled lathe.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a multi-purpose anchor clamps numerical control lathe carries out the centre gripping through multi-jaw anchor clamps to the clamping face of part, sets up the work piece on its multi-jaw anchor clamps's the jack catch, is equipped with a plurality of working faces that are used for with the clamping face contact of part on the work piece, and the working face is on a parallel with the revolving axle of chuck, and a plurality of working faces are the echelonment from the bottom to the top of work piece and distribute. In the setting mode, multiple clamping modes can be realized by the multiple working faces, so that the machining of multiple types of parts or the machining of multiple machining faces of the same part can be realized on one numerical control lathe under the condition of not replacing the clamp, compared with the traditional machining mode, multiple numerical control lathes or multiple machining clamps are not needed, the equipment investment cost and the labor cost are greatly reduced, the time for replacing the clamp and transporting the part to the next procedure is saved, and the production efficiency is improved. The working surfaces are distributed in a step shape and are not interfered with each other, and meanwhile, the interference with parts is avoided.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of a multi-jaw clamp in a multi-clamp numerically controlled lathe according to the present invention;

FIG. 2 is a schematic view of the surface structure of the multi-jaw clamp in the multi-clamp numerically controlled lathe of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the multi-jaw clamp in the multi-jaw clamp numerically controlled lathe of the present invention;

fig. 4 is a schematic sectional structural view of the hydraulic driving device in the multi-purpose clamp numerically controlled lathe of the present invention.

Illustration of the drawings: 1. a multi-jaw clamp; 11. a chuck; 111. positioning the surface; 12. a claw; 121. a working block; 1211. an adjustment hole; 1212. an adjusting screw; 122. a working surface; 2. a hydraulic drive device; 21. a housing; 211. a travel switch; 22. a pull rod.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.

Example (b):

as shown in fig. 1 to 3, the multi-purpose clamp numerically controlled lathe of the present embodiment includes a multi-jaw clamp 1 and a driving device, the multi-jaw clamp 1 includes a chuck 11 and a plurality of jaws 12, the jaws 12 are uniformly distributed around a rotation axis of the chuck 11 and move in opposite directions or move in opposite directions along a radial direction of the chuck 11 toward the rotation axis of the chuck 11, a bottom surface of the jaw 12 is connected to the chuck 11, and the jaw 12 is provided with a working block 121; the working block 121 is provided with a plurality of working surfaces 122 for contacting with the clamping surfaces of the parts, the working surfaces 122 are parallel to the rotating shaft of the chuck 11, and the plurality of working surfaces 122 are distributed in a step shape from the bottom to the top of the working block 121; when the driving device drives the jaws 12 to move to each clamping position where each working surface 122 is contacted with the clamping surface of the part, the start and stop of each machining operation of the numerically controlled lathe are correspondingly driven.

In the setting mode, the plurality of working surfaces 122 can realize a plurality of clamping modes, so that under the condition of not replacing the clamp, the machining of a plurality of types of parts or the machining of a plurality of machining surfaces of the same part can be realized on one numerical control lathe, compared with the traditional machining mode, a plurality of numerical control lathes or a plurality of machining clamps are not needed, the equipment input cost and the labor cost are greatly reduced, the time for replacing the clamp and transporting the part to the next procedure is saved, and the production efficiency is improved. The working surfaces 122 are distributed in a stepped manner, and do not interfere with each other, and meanwhile, the interference with parts is avoided. After the processing operation is set corresponding to each clamping position, the automatic execution can be realized, and the labor intensity of manpower is reduced.

In this embodiment, a stepped circular truncated cone is arranged on the surface of the chuck 11, a positioning surface 111 for contacting with a positioning end of a part is arranged on the stepped circular truncated cone, each positioning surface 111 is perpendicular to the rotating shaft of the chuck 11, an axial positioning reference is provided for the end of the part, and the rotating axis of the part is further ensured to be coaxial with the rotating shaft of the chuck 11, so that the machining precision of the part is improved.

In this embodiment, each positioning surface 111 corresponds to each working surface 122 for positioning and clamping, the height of the positioning surface 111 is not lower than the bottom edge of the corresponding working surface 122, and the positioning surface 111 and the working surface 122 together enclose a right-angle circular positioning and clamping area matched with the part. In this kind of mode of setting up, even if working face 122 bottom edge department sets up chamfer and fillet and also can not influence the centre gripping location of part, because can set up chamfer and fillet simultaneously, the manufacturing degree of difficulty of working face 122 reduces.

In this embodiment, each working surface 122 is disposed on the side of the working block 121 away from the rotation axis of the chuck 11, and gradually approaches the rotation axis of the chuck 11 from the bottom to the top of the working block 121, and each jaw 12 moves away from the clamping surface for clamping the part or moves toward the clamping surface for releasing the part, i.e. the jaws 12 perform a top-supporting type clamping on the part from the inside of the part, thereby facilitating the processing of the outer surface of the part.

In this embodiment, as shown in fig. 3, an adjusting hole 1211 is disposed on the working block 121, an opening at one end of the adjusting hole 1211 is disposed on the working surface 122, an adjusting screw 1212 is fittingly connected to the inside of the adjusting hole 1211, and an end of the adjusting screw 1212 can extend out of the working surface 122 through the opening. When the machined part is an iron casting with a die opened, the iron casting may be provided with a draft angle at a corresponding clamping surface for facilitating demoulding, and in order to avoid unstable fixation and the like caused by only line contact between the clamping surface and the working surface 122, the end of the adjusting screw 1212 provided in the embodiment can be adjusted to extend out of the working surface 122 to tightly push the clamping surface, thereby effectively preventing the part from being removed. And the thread adjusting mode can adjust the concentricity of the part and the main shaft by adjusting the protruding amount when the part has eccentricity.

In addition, the inclination matched with the clamping surface of the part can be arranged on the working surface 122 in a consistent mode, so that the inner hole of the part is better propped, and the contact area between the clamping surface and the working surface 122 is ensured.

In this embodiment, the driving device is a hydraulic driving device 2, and the hydraulic driving device 2 drives each jaw 12 to move relative to the chuck 11. The hydraulic driving mode has good stability and is suitable for clamping in the machining process of a numerical control lathe.

In the present embodiment, as shown in fig. 4, the hydraulic driving device 2 includes a housing 21 and a pull rod 22, the pull rod 22 drives the jaws 12 to move, and the jaws 12 are restricted by the part holding surface to move to different positions, so that the axial position of the pull rod 22 relative to the housing 21 is different. According to the principle, a plurality of travel switches 211 for detecting the position of the pull rod 22 are arranged on the housing 21 corresponding to the clamping positions of the jaws 12, the travel switches 211 correspondingly control the start and stop of each machining operation of the numerically controlled lathe, that is, when the pull rod 22 drives the jaws 12 to move to a certain clamping position and clamp a certain part, the position of the pull rod 22 relative to the housing 21 is fixed, and the travel switches 211 are arranged at the position, so that the numerically controlled lathe can be controlled to perform a certain set machining operation on the part through the travel switches 211. After each clamping position corresponding to each part is set by the travel switch 211, each machining operation can be automatically executed, the automation degree of the numerical control lathe is greatly improved, misoperation caused by manual setting is avoided, dependency on experience of personnel is reduced, and manpower consumption is reduced.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a multi-purpose anchor clamps numerical control lathe, includes multi-jaw anchor clamps (1) and drive arrangement, multi-jaw anchor clamps (1) include chuck (11) and a plurality of jack catch (12), and a plurality of jack catch (12) are around the pivot even distribution of chuck (11) to along the radial pivot towards chuck (11) of chuck (11) under drive arrangement's drive move towards each other or move dorsad its characterized in that: the claw (12) is provided with a working block (121); the working block (121) is provided with a plurality of working surfaces (122) which are used for contacting with the clamping surfaces of the parts, the working surfaces (122) are parallel to the rotating shaft of the chuck (11), and the working surfaces (122) are distributed in a step shape from the bottom to the top of the working block (121); the driving device drives the clamping jaws (12) to move to each clamping position where each working surface (122) is contacted with the clamping surface of the part, and correspondingly drives the numerical control lathe to start and stop each machining operation.

2. The multi-clamp numerically controlled lathe according to claim 1, wherein: the surface of the chuck (11) is provided with a step-shaped circular table, the step-shaped circular table is provided with positioning surfaces (111) used for contacting with the positioning ends of the parts, and each positioning surface (111) is perpendicular to the rotating shaft of the chuck (11).

3. The multi-clamp numerically controlled lathe according to claim 2, wherein: each positioning surface (111) is correspondingly positioned and clamped with each working surface (122), and the height of each positioning surface (111) is not lower than the bottom edge of the corresponding working surface (122).

4. The multi-clamp numerically controlled lathe according to claim 1, wherein: each working face (122) is arranged on the side face, far away from the rotating shaft of the chuck (11), of the working block (121), and is close to the rotating shaft of the chuck (11) step by step from the bottom to the top of the working block (121), and each clamping jaw (12) moves back to clamp the clamping face of the part or moves opposite to release the clamping face of the part.

5. The multi-clamp numerically controlled lathe according to claim 1, wherein: the working block (121) is provided with an adjusting hole (1211), one end of the adjusting hole (1211) is opened on the working surface (122), an adjusting screw (1212) is connected in the adjusting hole (1211) in a matching mode, and the end portion of the adjusting screw (1212) can extend out of the working surface (122) through the opening.

6. The multi-clamp numerically controlled lathe according to any one of claims 1 to 5, wherein: the driving device is a hydraulic driving device (2), and the hydraulic driving device (2) drives the clamping jaws (12) to move relative to the chuck (11).

7. The multi-clamp numerically controlled lathe according to claim 6, wherein: the hydraulic driving device (2) comprises a shell (21) and a pull rod (22), wherein the pull rod (22) drives the clamping jaws (12) to move to different positions so that the axial positions of the pull rod (22) relative to the shell (21) are different; and a plurality of travel switches (211) for detecting the positions of the pull rods (22) are arranged on the shell (21) corresponding to the clamping positions of the clamping jaws (12), and the travel switches (211) correspondingly control the start and stop of each machining operation of the numerically controlled lathe.