CN214349694U - Positioning device - Google Patents

Abstract

The utility model discloses a positioner relates to the machining technology field, has solved solid of revolution clamping, the problem of spacing difficulty among the prior art. The positioning device is used for positioning the rotary shell, the end part of the rotary shell is provided with a rotary thin wall extending along the axial direction of the rotary center, and the inner wall of the rotary thin wall is provided with a boss far away from the end part of the rotary shell. The positioning device comprises a positioning disc, and the outer diameter of the positioning disc is matched with the inner diameter of the rotary thin wall; the fastening assembly is detachably connected with the positioning plate; wherein, the gyration thin wall slides in the positioning disk and fixes a position and installs on the positioning disk through fastening component. The utility model provides a positioner can be quick fix a position the gyration shell, its simple structure, convenient operation, the machining efficiency that provides the gyration shell that can be very big.

Description

Positioning device

Technical Field

The utility model relates to a machining technology field particularly indicates a positioner.

Background

At present, the thin-wall rotary shell needs to be machined by machining the length end face of the component, the corresponding appearance, the inner hole and the inner-type end face, so that not only are a plurality of machining characteristics needed, but also the requirements on the size and the related geometric tolerance are high. The existing clamping and positioning are difficult to guarantee the design requirements, so that the clamping and positioning of the rotary shell in the prior art are difficult, and the machining efficiency is low.

Disclosure of Invention

In view of this, the utility model aims at improving the not enough of prior art, provide a positioner to solve among the prior art problem of gyration casing clamping, location difficulty.

The utility model provides a technical scheme that this technical problem adopted is:

a positioning device for positioning a rotary casing, the end of the rotary casing having a thin rotary wall extending axially along a centre of rotation, the inner wall of the thin rotary wall being provided with symmetrical bosses remote from the end of the rotary casing, the positioning device comprising:

the outer diameter of the positioning disc is matched with the inner diameter of the rotary thin wall;

the fastening assembly is detachably connected with the positioning plate;

and the rotary thin wall slides into the positioning disc and is positioned and installed on the positioning disc through the fastening assembly.

Optionally, the positioning device further comprises a fixed disc, and the positioning disc is detachably connected with the fixed disc.

Optionally, a first cylindrical structure and a second cylindrical structure which are coaxially arranged are arranged on the positioning disc, the outer diameter of the first cylindrical structure is smaller than that of the second cylindrical structure, the inner side wall of the rotary thin wall is in contact with the outer side wall of the first cylindrical structure, and the end face of the rotary thin wall is in contact with the end face of the second cylindrical structure.

Optionally, the fastening assembly includes a connecting piece and a pressing plate, the connecting piece is disposed on the positioning plate, the pressing plate is disposed in the rotary shell and contacts with the boss, and the pressing plate is screwed with the connecting piece to fix the rotary shell.

Optionally, the connecting piece is a screw rod, the screw rod is coaxially connected with the positioning plate, and the pressing plate is screwed with the screw rod to fix the rotary shell.

Optionally, a counter bore is formed in the fixed disk, and a through hole corresponding to the counter bore is formed in the positioning disk;

the connecting piece is a first screw, and the first screw penetrates through the counter sink and the through hole to be in threaded connection with the pressing plate so as to fix the rotary shell.

Optionally, the connecting piece is a second screw, and the second screw penetrates through the pressing plate and is in threaded connection with the positioning plate to fix the rotary shell.

Optionally, the fixed disc is mounted on a three-jaw chuck of the machine tool.

Optionally, the positioning device further comprises a gasket, and the gasket is arranged between the pressure plate and the boss.

Optionally, the gasket is a rubber gasket.

Compared with the prior art, the utility model provides a positioner has beneficial effect is:

the utility model discloses a set the external diameter of positioning disk and the internal diameter of the thin wall of gyration on the gyration casing to the size of adaptation, when needing the location gyration casing, only need slide the gyration casing into on the positioning disk, make the gyration thin wall and the positioning disk cooperation on the gyration casing, just can directly realize the partial location of gyration casing. And then, the rotary shell is fastened on the positioning disc through the fastening assembly, and the complete positioning of the rotary shell is completed. It is visible, the utility model discloses simple structure, convenient operation, the machining efficiency who provides the gyration casing that can be very big.

Drawings

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

Fig. 1 is a cross-sectional view of a swivel housing according to the present invention;

fig. 2 is a top view of the swivel housing of the present invention;

fig. 3 is a first assembly diagram of the positioning device and the rotary housing according to embodiment 1 of the present invention;

fig. 4 is a second assembly diagram of the positioning device and the rotary housing according to embodiment 2 of the present invention;

fig. 5 is a third assembly diagram of the positioning device and the rotary housing according to embodiment 4 of the present invention.

In the figure:

1-rotary shell, 101-boss, 102-rotary thin wall, 2-positioning disk, 201-first cylindrical structure, 202-second cylindrical structure, 203-through hole, 3-fixed disk, 301-first screw, 302-counter bore, 4-pressing plate, 5-screw, 6-nut, 7-second screw and 8-rubber gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are merely exemplary of the invention and are not intended to be exhaustive. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 and 2, the present invention provides a revolving shell 1, which has a revolving thin wall 102 extending axially along the revolving center at the end of the revolving shell 1, and a symmetrical boss 101 far from the end of the revolving shell on the inner wall of the revolving thin wall 102.

The utility model provides a pair of positioner, as shown in fig. 3, including fixed disk 3, positioning disk 2 and fastening components. The fixed plate 3 is connected to a three-jaw chuck of a machine tool (not shown), and of course, the fixed plate 3 is connected to the three-jaw chuck of the machine tool by screws (the fixing method is conventional in the art and is not described herein again). The connection can be dismantled on fixed disk 3 to positioning disk 2, and wherein, the embodiment of dismantling the connection has: screw connection or snap connection. The rotary shell 1 slides into the positioning disc 2 through the rotary thin wall 102 to realize initial positioning, and then the fastening assembly fastens the rotary shell 1 to realize complete positioning of the rotary shell 1.

Specifically, the positioning disk 2 has a first cylindrical structure 201 and a second cylindrical structure 202 which are coaxially connected, the outer diameter of the first cylindrical structure 201 is smaller than the outer diameter of the second cylindrical structure 202, the inner wall of the thin turning wall 102 of the turning casing 1 contacts with the outer side wall of the first cylindrical structure 201, and the end face of the thin turning wall 102 contacts with the end face of the second cylindrical structure 202. At this time, the rotary housing 1 is already partially positioned on the positioning disk 2 by the thin rotary wall 102, and the positioning is simple and quick.

Further, the fastening assembly includes a first screw 301 and a pressure plate 4, and the pressure plate 4 is disposed in the rotary case 1 in contact with the boss 101. A countersunk hole 302 is formed in the center of the fixed disk 3, and a through hole 203 corresponding to the countersunk hole 302 is formed in the center of the positioning disk 2. After the first screw 301 passes through the counter bore 302, the through hole 203 and the pressing plate 4, the nut 6 is connected to press the pressing plate 4 against the boss 101, so that the rotary shell 1 is completely positioned on the positioning plate 2.

Still be provided with rubber gasket 8 between clamp plate 4 and the boss 101, can effectually avoid clamp plate 4 to wear to hinder boss 101 through the rubber gasket 8 that sets up. Of course, the rubber gasket 8 may be another gasket, such as a resin gasket.

It should be noted that, a threaded hole corresponding to the first screw 301 may also be directly provided on the pressure plate 4, so that the pressure plate 4 may be directly screwed to the first screw 301 without providing the nut 6, and the pressure plate 4 may also be pressed against the boss 101, thereby achieving the positioning of the rotary casing 1.

It should be noted that, because the positioning plate 2 is detachably disposed on the fixed plate 3, the positioning plate 2 of the present invention is replaceable. I.e. the puck 2 can be selectively replaced according to different sizes of the rotatable housing 1.

Example 2:

as shown in fig. 4, on the basis of embodiment 1, the fastening assembly is changed into a screw rod 5 and a pressure plate 4, the screw rod 5 is directly coaxially connected with the positioning disk 2, and the pressure plate 4 is still arranged in the rotary shell 1 and is contacted with the boss 101. With screw rod 5 direct setting on the setting element, can be more convenient when switching positioning disk 2, because every positioning disk 2 is from taking screw rod 5, operator's location gyration casing 1 will be faster. In addition, because the positioning plate 2 and the screw 5 are in a direct connection relationship, the screw 5 and the positioning plate 2 are more stable and cannot be loosened.

Example 3:

in addition to embodiment 2 (not shown), the screw 5 is directly provided on the pressing plate 4, and the positioning plate 2 is provided with a threaded hole, so that the pressing plate 4 can be directly mounted on the positioning plate 2.

Example 4:

as shown in fig. 5, based on embodiment 1, the fastening assembly is changed to a second screw 7 and a pressure plate 4, a threaded hole is provided on the positioning plate 2, and the second screw 7 penetrates through the pressure plate 4 and the positioning plate 2 to connect and fix the rotary housing 1. This saves material compared to embodiment 2, since the second screw 7 can still be used each time the positioning plate 2 is replaced.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. A positioning device for positioning a rotary casing (1), the rotary casing (1) having an end portion with a thin wall of revolution (102) extending axially along a centre of revolution, the thin wall of revolution (102) having an inner wall provided with a boss (101) remote from the end portion of the rotary casing (1), the positioning device comprising:

the outer diameter of the positioning disc (2) is matched with the inner diameter of the thin rotary wall (102);

the fastening component is detachably connected with the positioning plate (2);

the thin rotary wall (102) slides into the positioning disc (2) and is positioned and mounted on the positioning disc (2) through the fastening assembly.

2. The positioning device according to claim 1, further comprising a fixed disc (3), wherein the positioning disc (2) is detachably connected with the fixed disc (3).

3. The positioning device according to claim 2, characterized in that the positioning disc (2) is provided with a first cylindrical structure (201) and a second cylindrical structure (202) which are coaxially arranged, the outer diameter of the first cylindrical structure (201) is smaller than that of the second cylindrical structure (202), the inner side wall of the thin turning wall (102) is in contact with the outer side wall of the first cylindrical structure (201), and the end surface of the thin turning wall (102) is in contact with the end surface of the second cylinder.

4. The positioning device according to claim 3, characterized in that the fastening assembly comprises a connecting piece and a pressure plate (4), the connecting piece is arranged on the positioning plate (2), the pressure plate (4) is arranged in the rotary shell (1) and is in contact with the boss (101), and the pressure plate (4) is in threaded connection with the connecting piece to fix the rotary shell (1).

5. The positioning device according to claim 4, characterized in that the connecting piece is a screw (5), the screw (5) is coaxially connected with the positioning disk (2), and the pressure plate (4) is screwed with the screw (5) to fix the rotary shell (1).

6. The positioning device according to claim 4, characterized in that a counter bore (302) is provided on the fixed plate (3), and a through hole (203) corresponding to the counter bore (302) is provided on the positioning plate (2);

the connecting piece is a first screw (301), and the first screw (301) penetrates through the counter bore (302) and the through hole (203) to be in threaded connection with the pressing plate (4) so as to fix the rotary shell (1).

7. The positioning device according to claim 4, characterized in that the connecting piece is a second screw (7), the second screw (7) passing through the pressure plate (4) to be screwed with the positioning disk (2) to fix the swivel housing (1).

8. The positioning device according to any one of claims 4 to 7, characterized in that the fixed plate (3) is mounted on a three-jaw chuck of a machine tool.

9. The positioning device according to claim 8, further comprising a spacer disposed between the pressure plate (4) and the boss (101).

10. The positioning device according to claim 9, characterized in that the gasket is a rubber gasket (8).

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