CN210549537U

CN210549537U - Reassembling type clamping device

Info

Publication number: CN210549537U
Application number: CN201920970536.4U
Authority: CN
Inventors: 潘华林; 卢钧; 周继德
Original assignee: Chengdu Yuyuan Aviation Component Manufacturing Co ltd
Current assignee: Chengdu Yuyuan aviation Intelligent Manufacturing Co.,Ltd.
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-19
Anticipated expiration: 2029-06-26

Abstract

The utility model provides a reassembling type clamping device, the purpose is solved the work piece and need carry out the technical problem of alignment location again when changing the lathe. The adopted technical scheme is as follows: a detachable clamping device comprises a workpiece clamping mechanism and a lathe clamping mechanism; the workpiece clamping mechanism comprises a ring-shaped piece, a plurality of clamping screws are uniformly arranged on the ring-shaped piece along the circumferential direction, and the clamping screws penetrate through the ring-shaped piece along the radial direction of the ring-shaped piece; a plurality of positioning grooves are uniformly formed in the outer wall of the annular piece along the circumferential direction; the lathe clamping mechanism comprises a plurality of mounting seats connected with a lathe, each mounting seat is provided with a tightly-abutting screw rod matched with the positioning groove, and the tightly-abutting screw rods are in threaded connection with the mounting seats; the abutting screw rod is divided into a fixed screw rod and a movable screw rod, the fixed screw rod and the movable screw rod are arranged on two sides of the annular piece in a dividing mode, and the fixed screw rod is used for positioning the annular piece. The utility model discloses the work piece of clamping need not alignment location again when changing the lathe, has improved work efficiency.

Description

Reassembling type clamping device

Technical Field

The utility model relates to an aviation part processing equipment technical field, concretely relates to reassembling type clamping device.

Background

In the field of the aeronautical industry, it relates to the machining of various workpieces. Many workpieces are machined by a plurality of processes, and the workpieces need to be machined on different lathes or different stations of the same lathe. And the workpiece needs to be clamped once again when the lathe or the station is replaced once, and after the workpiece is clamped again, the workpiece needs to be aligned and positioned again, so that a large amount of time is wasted for operators, and the working efficiency is seriously influenced. In view of this, the utility model provides a reassembling type clamping device need not to carry out the alignment location again when lathe or station are changed to the work piece, enables work efficiency and improves by a wide margin.

Disclosure of Invention

An object of the utility model is to provide a reassembling type clamping device when lathe or station are changed to the work piece, need not to carry out the alignment location again, enables work efficiency and improves by a wide margin.

In order to achieve the above object, the utility model adopts the following technical scheme:

a detachable clamping device comprises a workpiece clamping mechanism and a lathe clamping mechanism;

the workpiece clamping mechanism comprises a ring-shaped piece, a plurality of clamping screws are uniformly arranged on the ring-shaped piece along the circumferential direction, and the clamping screws are in threaded connection with the ring-shaped piece and penetrate through the ring-shaped piece along the radial direction of the ring-shaped piece; a plurality of positioning grooves are uniformly formed in the outer wall of the annular piece along the circumferential direction;

the lathe clamping mechanism comprises a plurality of mounting seats connected with a lathe, the mounting seats are provided with abutting screws which are matched with the positioning grooves and correspond to the positioning grooves one by one, and the abutting screws are in threaded connection with the mounting seats; the abutting screw rod is divided into a fixed screw rod and a movable screw rod, the fixed screw rod and the movable screw rod are arranged on two sides of the annular piece in a dividing mode, and the fixed screw rod is used for positioning the annular piece.

Preferably, the annular member is a regular hexagon ring, the clamping screws and the positioning grooves are respectively arranged in three numbers, and the clamping screws and the positioning grooves are distributed on six side surfaces of the annular member in a staggered manner.

Preferably, the outer wall of the annular part is provided with an internal thread cylinder matched with the clamping screw.

Preferably, the clamping screw is provided with a first gasket and a first nut on the inner side of the ring-shaped member.

Preferably, the tightening screw rod is respectively provided with a second gasket and a second nut at two sides of the mounting seat.

Preferably, the end of the clamping screw rod positioned outside the annular piece is arranged into a regular hexagonal prism structure; the end of the abutting screw rod far away from the annular piece is arranged to be of a regular hexagonal prism structure.

The beneficial effects of the utility model are concentrated and appear, the utility model discloses set up the lathe fixture of fixing on the lathe station, lathe fixture supports tight loop forming element through supporting tight screw rod and carries out the centre gripping fixedly to work piece fixture. The position of the axis of the annular piece relative to the lathe station can be adjusted by adjusting the abutting screw or the mounting seat, and the axis of the annular piece is positioned and aligned. After positioning and alignment of the annular piece are completed, setting a butting screw of a half ring positioned below the annular piece as a fixed screw and keeping the fixed screw unchanged all the time; setting a pressing screw of a semi-ring above the ring-shaped piece as a movable screw, and pressing or loosening the ring-shaped piece by rotating the movable screw; the movable screw rod actively supports the annular piece, the fixed screw rod passively supports the annular piece and positions the annular piece, when the annular piece is placed on the fixed screw rod, the position of the annular piece is determined, and when the movable screw rod is screwed to support the annular piece tightly, the position of the axis of the annular piece is kept unchanged all the time.

When a workpiece is clamped, the position of the workpiece is adjusted on a first lathe or a first station, so that the axis of the workpiece and the axis of the annular piece are on the same straight line, or the relative position of the axis of the workpiece and the axis of the annular piece is determined; when the lathe is replaced later, the clamping state of the workpiece and the workpiece clamping mechanism is kept unchanged, and the workpiece clamping mechanism is reinstalled on the lathe clamping mechanism of the next lathe; the position of the axis of the ring-shaped piece relative to the lathe is aligned and determined, and the position of the axis of the workpiece relative to the axis of the ring-shaped piece is also aligned and determined; therefore, the position of the workpiece axis relative to the machine tool is correspondingly aligned and determined, and the workpiece axis does not need to be aligned and positioned again. The utility model is provided with the lathe clamping mechanism at each lathe and each station of the lathe, and only needs to adjust and tightly support the screw rod or the mounting seat when the lathe clamping mechanism is firstly installed and carry out positioning and alignment on the ring-shaped member of the workpiece clamping mechanism, and then the workpiece clamping mechanism is used every time without carrying out positioning and alignment again; the workpiece clamped in the annular piece of the workpiece clamping mechanism is aligned relative to the annular piece only by processing on a first lathe or a first station, and then the workpiece is not required to be aligned and positioned when the lathe or the station is replaced each time; therefore, the utility model discloses can save a large amount of alignment operations, save a large amount of time and manpower, make work efficiency improve greatly.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic view of a clamping screw;

FIG. 5 is a schematic structural view of the tightening screw;

reference numerals: 1. a workpiece clamping mechanism; 2. a lathe clamping mechanism; 3. an annular member; 4. clamping the screw rod; 5. positioning a groove; 6. a mounting seat; 7. tightly abutting against the screw rod; 8. an internal threaded barrel; 9. a first gasket; 10. a first nut; 11. a second gasket; 12. a second nut.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 5.

The embodiment of the utility model provides a reassembling type clamping device, this reassembling type clamping device include work piece fixture 1 and lathe fixture 2.

The workpiece holding mechanism 1 includes a ring 3, it being understood that the ring 3 may be circular, polygonal or other closed loop configuration. A plurality of clamping screws 4 are uniformly arranged on the annular piece 3 along the circumferential direction, and the clamping screws 4 are in threaded connection with the annular piece 3 and penetrate through the annular piece 3 along the radial direction of the annular piece 3; it will be appreciated that the workpiece is located within the ring 3 and the clamping screw 4 is moved radially of the ring 3 to tighten or loosen the workpiece. The outer wall of annular member 3 evenly sets up a plurality of constant head tanks 5 along circumference.

The lathe clamping mechanism 2 comprises a plurality of mounting seats 6 connected with a lathe, the mounting seats 6 are provided with abutting screws 7 which are matched with the positioning grooves 5 and correspond to one another one by one, and the abutting screws 7 are in threaded connection with the mounting seats 6; it will be appreciated that the abutment screw 7 and the positioning slot 5 may be correspondingly numbered so that the ring 3 is secured to the lathe chuck 2 in exactly the same position each time. The abutting screw 7 is divided into a fixed screw and a movable screw, the fixed screw and the movable screw are arranged on two sides of the annular part 3 in a row, and the fixed screw is used for positioning the annular part 3. It should be understood that, after the ring 3 is positioned, the tightening screw 7 which remains stationary to determine the mounting position of the ring 3 is defined as a fixed screw, and the tightening screw 7 which tightens or loosens the ring 3 by rotation is defined as a movable screw; the movable screw rod can be matched with a pointer and scales, so that the position of the movable screw rod when the movable screw rod is tightly abutted each time is kept unchanged, and the positioning precision of the annular piece 3 is ensured; the pointer and the scales can be matched with the fixed screw rod, and the position change caused by the looseness of the fixed screw rod is avoided. The workpiece clamping mechanism 1 and the lathe clamping mechanism 2 can be provided with two pairs and respectively correspond to two ends of a workpiece.

Set forth below the utility model discloses an embodiment, the utility model discloses set up lathe fixture 2 of fixing on the lathe station, lathe fixture 2 supports tight loop forming element 3 through supporting tight screw rod 7 and carries out the centre gripping fixedly to work piece fixture 1. The position of the axis of the annular part 3 relative to the lathe station can be adjusted by adjusting the abutting screw 7 or the mounting seat 6, and the axis of the annular part 3 is positioned and aligned. After the positioning and alignment of the annular part 3 are completed, the abutting screw 7 of the half ring positioned below the annular part 3 is set as a fixed screw and is kept unchanged all the time; setting the abutting screw 7 of the semi-ring above the ring-shaped member 3 as a movable screw, and abutting or loosening the ring-shaped member 3 by rotating the movable screw; the movable screw rod actively supports the annular piece 3 tightly, the fixed screw rod passively supports the annular piece 3 tightly and positions the annular piece 3, when the annular piece 3 is placed on the fixed screw rod, the position of the annular piece is determined, and when the movable screw rod is screwed to support the annular piece 3 tightly, the position of the axis of the annular piece 3 is kept unchanged all the time.

When clamping a workpiece, the position of the workpiece is adjusted on a first lathe or a first station, so that the axis of the workpiece and the axis of the ring-shaped piece 3 are on the same straight line, or the relative position of the axis of the workpiece and the axis of the ring-shaped piece 3 is determined; when the lathe is replaced later, the clamping state of the workpiece and the workpiece clamping mechanism 1 is kept unchanged, and the workpiece clamping mechanism 1 is reinstalled on the lathe clamping mechanism 2 of the next lathe; the position of the axis of the ring-shaped part 3 relative to the lathe is aligned and determined, and the position of the axis of the workpiece relative to the axis of the ring-shaped part 3 is also aligned and determined; therefore, the position of the workpiece axis relative to the machine tool is correspondingly aligned and determined, and the workpiece axis does not need to be aligned and positioned again. The utility model is provided with the lathe clamping mechanism 2 at each lathe and each station of the lathe, only needs to adjust the abutting screw 7 or the mounting seat 6 when the lathe clamping mechanism 2 is installed for the first time, and positions and aligns the ring-shaped member 3 of the workpiece clamping mechanism 1, and then the workpiece clamping mechanism 1 is used every time without positioning and aligning again; the workpiece clamped in the annular part 3 of the workpiece clamping mechanism 1 is only required to be machined on a first lathe or a first station, the workpiece is aligned relative to the annular part 3, and then the workpiece is not required to be aligned and positioned when the lathe or the station is replaced each time; therefore, the utility model discloses can save a large amount of alignment operations, save a large amount of time and manpower, make work efficiency improve greatly.

As the utility model discloses a further optimization, loop forming element 3 is regular hexagon shape ring, clamping screw 4 respectively sets up threely with constant head tank 5, clamping screw 4 distributes in loop forming element 3's six sides with constant head tank 5 is crisscross. It should be understood that the three clamping screws 4 form an included angle of 120 degrees with each other, and the three abutting screws 7 form an included angle of 120 degrees with each other; three clamping screws 4 tightly support the workpiece at three points, and three tightly supporting screws 7 tightly support the ring-shaped piece 3 at three points.

Further, the outer wall of the ring-shaped member 3 is provided with an internal thread cylinder 8 matched with the clamping screw 4. It should be understood that the internally threaded barrel 8 serves to limit the clamping screw 4 and prevent the clamping screw 4 from skewing.

Further, the clamping screw 4 is provided with a first washer 9 and a first nut 10 on the inside of the ring 3. It should be understood that after the clamping screw 4 abuts against the workpiece, the positions of the first washer 9 and the first nut 10 on the clamping screw 4 are adjusted to lock the clamping screw 4, so that the clamping screw 4 is prevented from rotating and causing position deviation.

Further, the tightening screw 7 is provided with a second gasket 11 and a second nut 12 on two sides of the mounting seat 6, respectively. It should be understood that after the tightening screw 7 tightens against the ring 3, the positions of the second washer 11 and the second nut 12 on the tightening screw 7 are adjusted to lock the tightening screw 7, so that the tightening screw 7 is prevented from rotating and causing position deviation.

Further, the end of the clamping screw rod 4 positioned outside the ring-shaped piece 3 is arranged into a regular hexagonal prism structure; the end of the abutting screw 7 far away from the ring-shaped piece 3 is arranged to be of a regular hexagonal prism structure. It should be understood that, the outer ends of the clamping screw rod 4 and the abutting screw rod 7 are both set to be in the shape of a regular hexagonal prism, and the clamping screw rod 4 and the abutting screw rod 7 can be screwed or unscrewed through a socket wrench, so that the clamping device is labor-saving, and has a better and firmer clamping effect.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, and these changes and modifications are intended to fall within the scope of the invention.

Claims

1. The utility model provides a reassembling type clamping device which characterized in that: comprises a workpiece clamping mechanism (1) and a lathe clamping mechanism (2);

the workpiece clamping mechanism (1) comprises a ring-shaped piece (3), a plurality of clamping screws (4) are uniformly arranged on the ring-shaped piece (3) along the circumferential direction, and the clamping screws (4) are in threaded connection with the ring-shaped piece (3) and penetrate through the ring-shaped piece (3) along the radial direction of the ring-shaped piece (3); a plurality of positioning grooves (5) are uniformly formed in the outer wall of the annular piece (3) along the circumferential direction;

the lathe clamping mechanism (2) comprises a plurality of mounting seats (6) connected with a lathe, the mounting seats (6) are provided with abutting screws (7) which are matched with the positioning grooves (5) and correspond to one another one by one, and the abutting screws (7) are in threaded connection with the mounting seats (6); the abutting screw (7) is divided into a fixed screw and a movable screw, the fixed screw and the movable screw are arranged on two sides of the annular piece (3) in a row, and the fixed screw is used for positioning the annular piece (3).

2. A knock-down clamp apparatus according to claim 1, wherein: the ring-shaped piece (3) is a regular hexagon ring, the clamping screws (4) and the positioning grooves (5) are respectively arranged three, and the clamping screws (4) and the positioning grooves (5) are distributed on six side faces of the ring-shaped piece (3) in a staggered mode.

3. A knock-down clamp apparatus according to claim 2, wherein: the outer wall of the ring-shaped piece (3) is provided with an internal thread cylinder (8) matched with the clamping screw rod (4).

4. A knock-down clamp according to claim 3, wherein: the clamping screw (4) is provided with a first gasket (9) and a first nut (10) on the inner side of the annular piece (3).

5. A knock-down clamp according to claim 4 in which: and the two sides of the mounting seat (6) of the abutting screw (7) are respectively provided with a second gasket (11) and a second nut (12).

6. A knock-down clamp according to claim 5, in which: the end of the clamping screw (4) positioned outside the ring-shaped piece (3) is arranged into a regular hexagonal prism structure; the end of the abutting screw rod (7) far away from the ring-shaped piece (3) is arranged to be of a regular hexagonal prism structure.