CN212887319U

CN212887319U - Clamping and positioning jig for annular parts

Info

Publication number: CN212887319U
Application number: CN202021697136.XU
Authority: CN
Inventors: 崔胜闯; 刘阳; 蔡宝国
Original assignee: Luxshare Intelligent Manufacture Zhejiang Co Ltd
Current assignee: Luxshare Intelligent Manufacture Zhejiang Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-06
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to the technical field of part positioning, and discloses an annular part clamping and positioning jig which comprises a jig body, a cam and a clamping assembly, wherein the cam is rotationally arranged on the jig body, the circumferential direction of the cam is provided with a working edge and an initial edge which are alternately connected, and the working edge is far away from the axle center of the cam relative to the initial edge; the clamping assembly comprises a plurality of connecting blocks, the connecting blocks are arranged at intervals along the circumferential direction of the cam, and the connecting blocks correspond to the axis of the cam and are arranged on the jig body in a reciprocating sliding manner; the working edge is used for pushing against the connecting blocks to enable the connecting blocks to be far away from the axis, and the initial edge is used for sliding and pushing against the connecting blocks. The utility model discloses a set up cam and a plurality of connecting block on the tool body, realize pressing from both sides tightly the location of annular part inner wall, simple structure, the location is accurate, presss from both sides tightly reliably, can not take place to interfere annular part, other operations after the location clamp of being convenient for presss from both sides tightly.

Description

Clamping and positioning jig for annular parts

Technical Field

The utility model relates to a part location technical field especially relates to an annular part presss from both sides tight positioning jig.

Background

In the electronics industry, ring parts are positioned and clamped when they are assembled. In the prior art, a positioning pin is generally adopted for positioning, and a cover plate is clamped tightly. The structure is complex in operation, and the cover plate is used for clamping the ring-shaped part, so that interference can be caused between the ring-shaped part and the ring-shaped part, and subsequent operation is influenced; in addition, for the annular part with a complex structure, in order to avoid interference, the selection and the clamping of the position of the cover plate waste longer time, the later-stage disassembly time is also longer, and the work efficiency is greatly reduced.

Therefore, a clamping and positioning fixture for ring-shaped parts is needed to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Based on it, an object of the utility model is to provide an annular part presss from both sides tight positioning jig, simple structure, the simple operation, the location presss from both sides tight efficiently.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an annular part presss from both sides tight positioning jig, includes: a jig body; the cam is rotationally arranged on the jig body, the periphery of the cam is provided with a working edge and an initial edge which are alternately connected, and the working edge is far away from the axis of the cam relative to the initial edge; the clamping assembly comprises a plurality of connecting blocks, the connecting blocks are arranged at intervals along the circumferential direction of the cam, and the connecting blocks correspond to the axis and are arranged on the jig body in a reciprocating sliding manner; the working edge is used for pushing the connecting blocks to enable the connecting blocks to be far away from the axis, and the initial edge is used for sliding and pushing the connecting blocks.

As an annular part presss from both sides tight positioning jig's preferred scheme, the connecting block include with the butt end of cam butt and keep away from the location end of butt end, the cam has initial condition and operating condition, when the cam rotated to operating condition, the work limit one-to-one supports against the butt end, the location end is opened in step, can support by in the inner wall of annular part.

As a preferred scheme of the clamping and positioning jig for the annular part, the abutting end is provided with a roller, and the roller abuts against the outer peripheral side of the cam.

As an annular part presss from both sides tight positioning jig's preferred scheme, the tool body includes: the bottom plate is provided with a connecting cavity; the connecting plate is arranged in the connecting cavity, and the cam and the connecting block are arranged on the connecting plate.

As an optimal scheme of the clamping and positioning jig for the annular parts, a sliding groove is formed in the circumferential direction of the connecting plate, and the connecting block is detachably arranged in the sliding groove.

As an optimal scheme of the annular part clamping and positioning jig, the clamping assembly further comprises a pressing plate, the pressing plate is connected with the connecting plate, and the connecting block is detachably connected with the pressing plate.

As a preferred scheme of the clamping and positioning jig for the annular parts, the connecting block is provided with a slot and an inserting block, a sliding groove and a clamping groove are formed in the sliding groove, the inserting block is inserted in the sliding groove in a sliding mode, and the pressing plate is arranged between the slot and the clamping groove.

As a preferred scheme of the annular part clamping and positioning jig, the clamping assembly further comprises an elastic device, one end of the elastic device abuts against the inner wall of the connecting cavity, and the other end of the elastic device abuts against the positioning end.

As a preferred scheme of the clamping and positioning jig for the annular parts, a manual knob is arranged on the cam and is rotatably connected with the jig body, and the manual knob is screwed to rotate the cam.

As a preferred scheme of the clamping and positioning jig for the annular parts, the cam is provided with a through hole, the manual knob is provided with a rotating shaft, the rotating shaft is inserted into the through hole, the periphery of the rotating shaft radially extends to form a protrusion, the inner wall of the through hole corresponds to the protrusion, a positioning groove is correspondingly arranged on the protrusion, and the protrusion is assembled with the positioning groove.

The utility model has the advantages that:

the utility model realizes the positioning and clamping of the inner wall of the annular part by arranging the cam and the connecting blocks on the jig body, has simple structure, accurate positioning and reliable clamping, can not interfere the annular part, and is convenient for other operations after the positioning and clamping; specifically, the circumference of cam is provided with work limit and the initial limit that links to each other in turn, when needs are tight to the annular part location clamp, arrange the annular part in on the tool body, the cam rotates, work limit when the cam pushes away and supports a plurality of connecting blocks, the axle center of cam is kept away from to a plurality of connecting blocks, with the inner wall butt of annular part, the realization is tight to the location clamp that the annular is connected, when needs are dismantled, the cam rotates equally, make a plurality of connecting blocks be close to the axle center of cam, and slide with initial limit and push away and support, so that the connecting block breaks away from the butt with the inner wall of annular part, can dismantle annular part down, and the operation is simple, and is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and 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 the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic view of a clamping and positioning jig for annular parts according to an embodiment of the present invention;

fig. 2 is an exploded view of the annular part clamping and positioning jig according to the embodiment of the present invention;

fig. 3 is a top view of the annular part clamping and positioning jig according to the embodiment of the present invention in the working state and the annular part;

fig. 4 is a top view of the annular part clamping and positioning jig according to the embodiment of the present invention in the initial state;

fig. 5 is a schematic view of a connecting block according to an embodiment of the present invention;

FIG. 6 is a schematic view of a connection plate according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of the annular part clamping and positioning jig according to the embodiment of the present invention;

fig. 8 is a schematic view of a manual knob according to an embodiment of the present invention;

fig. 9 is a schematic view of a cam according to an embodiment of the present invention.

In the figure:

100. an annular part;

1. a jig body; 11. a base plate; 111. a connecting cavity; 12. a connecting plate; 121. a sliding groove; 1211. a chute; 1212. a clamping groove; 122. a knob hole;

2. a cam; 21. a working edge; 22. an initial edge; 23. a manual knob; 231. a rotating shaft; 232. a protrusion; 24. a through hole; 241. positioning a groove;

3. a clamping assembly; 31. connecting blocks; 311. a butting end; 3111. a roller; 312. a positioning end; 313. an elastic device; 314. a slot; 315. inserting a block; 32. and (7) pressing a plate.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the present embodiment provides an annular part clamping and positioning fixture, which includes a fixture body 1, a cam 2 and a clamping assembly 3, wherein the cam 2 is rotatably disposed on the fixture body 1, the cam 2 is circumferentially provided with a working edge 21 and an initial edge 22 alternately connected, and the working edge 21 is far away from the axis of the cam 2 relative to the initial edge 22; the clamping assembly 3 comprises a plurality of connecting blocks 31, the connecting blocks 31 are arranged at intervals along the circumferential direction of the cam 2, and the connecting blocks 31 correspond to the axis of the cam 2 and are arranged on the jig body 1 in a reciprocating sliding manner; the working edge 21 is used for pushing against the plurality of connecting blocks 31 to make the plurality of connecting blocks 31 away from the axis, and the initial edge 22 is used for sliding and pushing against the plurality of connecting blocks 31.

The cam 2 and the connecting blocks 31 are arranged on the jig body 1, so that the inner wall of the annular part 100 is positioned and clamped, the structure is simple, the positioning is accurate, the clamping is reliable, the annular part 100 cannot be interfered, and other operations after the positioning and clamping are facilitated; specifically, as shown in fig. 3 and 4, the working edge 21 and the initial edge 22 which are alternately connected are arranged in the circumferential direction of the cam 2, when the annular part 100 needs to be positioned and clamped, the annular part 100 is placed on the jig body 1, the cam 2 is rotated, when the working edge 21 of the cam 2 pushes against the plurality of connecting blocks 31, the plurality of connecting blocks 31 are far away from the axis of the cam 2 to be abutted against the inner wall of the annular part 100, so that the annular connection is positioned and clamped, when the annular part needs to be disassembled, the cam 2 is also rotated to enable the plurality of connecting blocks 31 to be close to the axis of the cam 2 and to be slidably pushed against the initial edge 22, so that the connecting blocks 31 are disengaged from the inner wall of the annular part 100, and the annular part 100 can be disassembled.

Specifically, as shown in fig. 3 and 4, the connecting block 31 includes an abutting end 311 abutting against the cam 2 and a positioning end 312 far from the abutting end 311, and the cam 2 has an initial state and an operating state. When the cam 2 rotates to a working state, the working edges 21 correspondingly abut against the abutting ends 311 one by one, and the positioning ends 312 are synchronously expanded and abut against the inner wall of the annular part 100 to clamp and position the annular part 100; when the cam 2 rotates to the initial state, the initial edges 22 abut against the abutting ends 311 in a one-to-one correspondence manner, the positioning ends 312 retract synchronously, and are separated from the inner wall of the annular part 100, so that the annular part 100 is placed and taken down conveniently.

In order to ensure the clamping firmness of the connecting blocks 31 on the annular part 100 and the alignment of the positioning, in the embodiment, three connecting blocks 31 are provided, and the three connecting blocks 31 are arranged at equal intervals along the axial center circumference of the cam 2.

Alternatively, as shown in fig. 1 and 5, the abutting end 311 is provided with a roller 3111, the roller 3111 abuts against the outer peripheral side of the cam 2, friction between the abutting end 311 and the outer peripheral side of the cam 2 during rotation of the cam 2 is reduced, rotation of the cam 2 is more labor-saving, and the service life of the cam 2 and the abutting end 311 is prolonged.

Further, as shown in fig. 2 and 6, the jig body 1 includes a bottom plate 11 and a connecting plate 12, wherein the bottom plate 11 is provided with a connecting cavity 111, the connecting plate 12 is disposed in the connecting cavity 111, the cam 2 and the connecting block 31 are both disposed on the connecting plate 12, when clamping and positioning the annular part 100, the annular part 100 can be disposed on the bottom plate 11, and a person skilled in the art can select a proper bottom plate 11 according to the size of the annular part 100 to improve the universality of the annular part clamping and positioning jig.

Specifically, as shown in fig. 1 and fig. 2, in order to further improve the universality of the clamping and positioning jig for the annular part, the abutting end 311 and the positioning end 312 of the connecting block 31 may be set to have different distances, the clamping assembly 3 further includes a pressing plate 32, the pressing plate 32 is connected with the connecting plate 12, and the connecting block 31 is detachably connected with the pressing plate 32. The connecting block 31 and the connecting plate 12 are detachably connected, so that when the diameter of the annular connection needing to be clamped and positioned is large, the connecting block 31 and the connecting plate 12 with the improper distance between the abutting end 311 and the positioning end 312 can be replaced by the connecting block 31 and the connecting plate 12 with the proper distance between the abutting end 311 and the positioning end 312. It will be understood that the distance between the abutment end 311 and the positioning end 312 of the connecting block 31, mounted simultaneously on the connecting plate 12, is the same, since the centring of the positioning of the annular element 100 is guaranteed.

In this embodiment, to realize the detachable connection between the connection block 31 and the connection plate 12, a sliding groove 121 is disposed on the circumference of the connection plate 12, and the connection block 31 is detachably disposed in the sliding groove 121. Preferably, the sliding grooves 121 are provided in a radial direction of the connection plate 12 for easy processing and installation.

Specifically, as shown in fig. 2, 5 and 6, the connecting block 31 is provided with a slot 314 and an insertion block 315, the sliding groove 121 is provided with a stepped sliding groove 1211 and a clamping groove 1212, and the pressing plate 32 is disposed between the slot 314 and the clamping groove 1212 and is fixedly connected to the clamping groove 1212, so that the insertion block 315 can be slidably inserted into the sliding groove 1211. The slot 314 and the clamping slot 1212 are used for accommodating the pressing plate 32, and the pressing plate 32 is used for limiting the connecting block 31 along the axial direction of the connecting plate 12 and ensuring the clamping stability along the axial direction of the connecting plate 12 when the connecting block 31 clamps the annular part 100; the sliding slot 1211 is configured to receive the insertion block 315, so that the connection block 31 can slide along the radial direction of the connection plate 12 to be inserted into or removed from the connection plate 12, thereby achieving a detachable connection between the connection block 31 and the connection plate 12.

Further, as shown in fig. 2, 5 and 7, the clamping assembly 3 further includes an elastic device 313, in the embodiment, the elastic device 313 is a spring, but not limiting the embodiment of the present invention; one end of the elastic device 313 abuts against the inner wall of the connecting cavity 111, and the other end abuts against the positioning end 312. The elastic device 313 is arranged to enable the abutting end 311 of the connecting block 31 to be abutted against the outer peripheral side of the cam 2 at any time, so that when the initial edge 22 of the cam 2 is abutted against the abutting end 311 of the connecting block 31, the positioning end 312 can be retracted at the same time, and the annular part 100 can be conveniently taken and placed.

Preferably, as shown in fig. 2 and 8, a manual knob 23 is arranged on the cam 2, the manual knob 23 is rotatably connected with the jig body 1, and the manual knob 23 is screwed to rotate the cam 2, so as to reduce the force required to be applied to rotate the cam 2, and reduce the labor intensity of an operator.

Specifically, as shown in fig. 6, 8 and 9, the cam 2 is provided with a through hole 24, the connecting plate 12 is provided with a knob hole 122, the manual knob 23 is provided with a rotating shaft 231, the rotating shaft 231 is inserted into the through hole 24 and the knob hole 122, a protrusion 232 radially extends from the periphery of the rotating shaft 231, a positioning groove 241 is correspondingly arranged on the inner wall of the through hole 24 corresponding to the protrusion 232, and the protrusion 232 is assembled with the positioning groove 241. The manual knob 23 is rotated, and the protrusion 232 abuts against the positioning groove 241, so that the cam 2 and the manual knob 23 are synchronously rotated.

It is worth to be noted that the cam 2 can also be set to different sizes, that is, the distance between the working edge 21 and the axis of the cam 2 is different, so as to position the annular parts 100 with different inner diameters, and improve the universality of the clamping and positioning jig for the annular parts.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides an annular part presss from both sides tight positioning jig which characterized in that includes:

a jig body (1);

the cam (2) is rotationally arranged on the jig body (1), the periphery of the cam (2) is provided with a working edge (21) and an initial edge (22) which are alternately connected, and the working edge (21) is far away from the axis of the cam (2) relative to the initial edge (22); and

the clamping assembly (3) comprises a plurality of connecting blocks (31), the connecting blocks (31) are arranged at intervals along the circumferential direction of the cam (2), and the connecting blocks (31) correspond to the axis and are arranged on the jig body (1) in a reciprocating sliding manner;

the working edge (21) is used for pushing against the connecting blocks (31) to enable the connecting blocks (31) to be far away from the axis, and the initial edge (22) is used for sliding pushing against the connecting blocks (31).

2. The annular part clamping and positioning jig as claimed in claim 1, wherein the connecting block (31) comprises an abutting end (311) abutting against the cam (2) and a positioning end (312) far away from the abutting end (311), the cam (2) has an initial state and a working state, when the cam (2) rotates to the working state, the working edges (21) abut against the abutting end (311) in a one-to-one correspondence manner, and the positioning end (312) is synchronously opened and can abut against the inner wall of the annular part (100).

3. The annular part clamping and positioning jig as claimed in claim 2, wherein the abutting end (311) is provided with a roller (3111), and the roller (3111) abuts against the outer peripheral side of the cam (2).

4. The annular part clamping and positioning jig of claim 2, wherein the jig body (1) comprises:

a bottom plate (11) provided with a connecting cavity (111);

the connecting plate (12) is arranged in the connecting cavity (111), and the cam (2) and the connecting block (31) are arranged on the connecting plate (12).

5. The annular part clamping and positioning jig as claimed in claim 4, wherein the connecting plate (12) is circumferentially provided with a sliding groove (121), and the connecting block (31) is detachably arranged in the sliding groove (121).

6. The annular part clamping and positioning jig as claimed in claim 5, wherein the clamping assembly (3) further comprises a pressing plate (32), the pressing plate (32) is connected with the connecting plate (12), and the connecting block (31) is detachably connected with the pressing plate (32).

7. The annular part clamping and positioning jig as claimed in claim 6, wherein the connecting block is provided with a slot (314) and an insertion block (315), a sliding groove (1211) and a clamping groove (1212) are provided in the sliding groove (121), the insertion block (315) is slidably inserted into the sliding groove (1211), and the pressing plate (32) is disposed between the slot (314) and the clamping groove (1212).

8. The annular part clamping and positioning jig as claimed in claim 4, wherein the clamping assembly (3) further comprises an elastic device (313), one end of the elastic device (313) abuts against the inner wall of the connecting cavity (111), and the other end abuts against the positioning end (312).

9. The annular part clamping and positioning jig of any one of claims 1 to 8, wherein a manual knob (23) is arranged on the cam (2), the manual knob (23) is rotatably connected with the jig body (1), and the manual knob (23) is screwed to rotate the cam (2).

10. The annular part clamping and positioning jig according to claim 9, wherein the cam (2) is provided with a through hole (24), the manual knob (23) is provided with a rotating shaft (231), the rotating shaft (231) is inserted into the through hole (24), a protrusion (232) extends radially from the periphery of the rotating shaft (231), a positioning groove (241) is correspondingly formed in the inner wall of the through hole (24) corresponding to the protrusion (232), and the protrusion (232) is assembled with the positioning groove (241).