CN216938480U - Clamping seat adjusting assembly of self-centering clamping device for circular ring workpiece - Google Patents
Clamping seat adjusting assembly of self-centering clamping device for circular ring workpiece Download PDFInfo
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- CN216938480U CN216938480U CN202220624263.XU CN202220624263U CN216938480U CN 216938480 U CN216938480 U CN 216938480U CN 202220624263 U CN202220624263 U CN 202220624263U CN 216938480 U CN216938480 U CN 216938480U
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Abstract
The utility model relates to the technical field of clamping devices, in particular to a clamping seat adjusting assembly of a self-centering clamping device for a circular ring workpiece. The structure can be suitable for self-centering clamping of circular workpieces with different diameters, particularly large circular workpieces, so that the circular workpieces cannot be loosened in the machining processes of milling, drilling and the like of a numerical control machine tool.
Description
Technical Field
The utility model relates to the technical field of clamping devices, in particular to a clamping seat adjusting assembly of a self-centering clamping device for a circular ring workpiece.
Background
In the prior art, before a large-sized circular workpiece needs to be subjected to finish machining through a numerical control machine, the circular workpiece needs to be positioned and clamped on a fixture, and although a technology for centering and clamping the circular workpiece through a three-jaw chuck exists in the prior art, the existing three-jaw chuck is difficult to be directly suitable for centering and clamping of the large-sized circular workpiece. At present, a large-sized circular workpiece is usually adjusted, positioned and clamped manually for multiple times by a clamping jaw, the workpiece is sucked by an electromagnet to be fixed after being adjusted in place, the problem that the center of the circular workpiece is difficult to position due to the fact that the circular workpiece is in the above structure is solved, multiple adjustment is often needed, the time is long, the pre-tightening force of clamping is not easy to control, and the clamping process is likely to be loosened due to the action of various forces after clamping, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: how to improve the structure of the self-centering clamping device of the circular workpiece, the self-centering clamping device is suitable for the self-centering clamping of the circular workpieces with different diameters, particularly the self-centering clamping of large circular workpieces, and the circular workpieces cannot be loosened in the milling, drilling and other machining processes of a numerical control machine.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a cassette adjusting part of a self-centering clamping device for a circular ring workpiece comprises:
the hydraulic chuck mechanism comprises a chuck body and a plurality of sliding blocks, the sliding blocks are distributed in a circumferential array and are connected to the chuck body in a sliding mode, and the distance between the sliding blocks and the central axis of the chuck body is the same;
a support connected to the chuck body;
the first guide rails are connected to the supporting pieces, the number of the first guide rails is the same as that of the sliding blocks, and the direction of each first guide rail is parallel to the sliding direction of the corresponding sliding block;
the first sliding seat is connected with the first guide rail in a sliding manner, the first sliding seat is connected with one of the sliding blocks, and a first rack is arranged on the upper surface of the first sliding seat;
the clamping seat adjusting mechanism comprises a clamping seat body and a first fastening piece, a second rack matched with the first rack is arranged on the lower portion of the clamping seat body, the clamping seat body is connected to the upper portion of the first sliding seat, the clamping seat body comprises a supporting portion used for supporting a circular workpiece and a clamping portion used for clamping the outer circumferential surface or the inner circumferential surface of the circular workpiece, and the first fastening piece is used for fastening and connecting the clamping seat body and the first sliding seat.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular workpiece, a third rack is arranged on the upper surface of the sliding block;
the device also comprises an L-shaped connecting piece; one end of the L-shaped connecting piece is provided with a fourth rack matched with the third rack, and the other end of the L-shaped connecting piece is connected to the first sliding seat;
the L-shaped connecting piece is fixedly connected with the sliding block through the first fastening piece.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular ring workpiece, the clamping portion of the clamping seat body is provided with two clamping strips in the vertical direction.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the ring workpiece, the surface of the clamping strip is arc-shaped.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular ring workpiece, a second guide rail is arranged in the center of the upper portion of the first sliding seat, and the clamping seat body is connected with the second guide rail in a sliding fit manner.
Further, in the cassette adjusting assembly structure of the self-centering clamping device for the circular ring workpiece, the upper part of each first sliding seat is connected with 2 cassette adjusting mechanisms, and the directions of the clamping parts of the 2 cassette adjusting mechanisms are opposite.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular workpiece, the tooth groove of the first rack is in a straight shape, and the tooth groove is perpendicular to the first guide rail.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular workpiece, the tooth groove of the first rack is in a straight shape, and the included angle between the tooth groove and the first guide rail is 30-60 degrees.
Further, in the clamping seat adjusting assembly structure of the self-centering clamping device for the circular workpiece, the tooth groove of the first rack is L-shaped, and an included angle between any side of the L-shaped rack and the first guide rail is 30-60 degrees.
The utility model has the beneficial effects that: according to the utility model, by designing the first guide rail, the first sliding seat and the clamping seat adjusting assembly, before clamping the ring workpiece, the connecting position of the clamping seat body on the first sliding seat can be flexibly adjusted according to the size of the clamped ring workpiece, the clamping seat body is connected with the first sliding seat in a matched manner through the rack and locked through the first fastening piece, so that the clamping seat body is conveniently positioned, the clamping seat body can be ensured to be closely matched and connected with the first sliding seat, and the phenomenon that the machining precision is influenced due to slight displacement of the ring workpiece caused by vibration in the machining process of the numerical control machine tool is avoided. The structure can be suitable for self-centering clamping of circular ring workpieces with different diameters, particularly large circular ring workpieces, so that the circular ring workpieces cannot be loosened in the machining processes of milling, drilling and the like of a numerical control machine tool.
Drawings
Fig. 1 is a schematic partial structural view of a clamping seat adjusting assembly of a self-centering clamping device for a circular workpiece according to an embodiment of the present invention;
FIG. 2 is a front view of a partial structure of a cassette adjusting assembly of a self-centering clamping device for a circular workpiece according to an embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural view of a self-centering clamping device for an annular workpiece according to an embodiment of the present invention;
FIG. 5 is a top view of a self-centering clamping device for an annular workpiece according to an embodiment of the present invention;
FIG. 6 is an enlarged view of section B of the embodiment of FIG. 5;
FIG. 7 is an enlarged view of section B of the alternate embodiment of FIG. 5;
FIG. 8 is an enlarged view of section B of the alternate embodiment of FIG. 5;
description of reference numerals:
1. a hydraulic chuck mechanism; 11. a chuck body; 12. a slider; 2. a support member; 3. a first guide rail; 4. a first sliding seat; 41. a first rack; 42. a second guide rail; 5. a cassette adjusting mechanism; 51. a card seat body; 511. a clamping part; 512. a support portion; 52. a first fastener; 53. a second rack; 6. an L-shaped connector; 61. a second fastener; 7. a ring workpiece.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Example 1
Referring to fig. 1 to 8, a clamping seat adjusting assembly of a self-centering clamping device for a circular workpiece includes:
the hydraulic chuck mechanism 1 comprises a chuck body 11 and a plurality of sliding blocks 12, wherein the sliding blocks 12 are distributed in a circumferential array and are connected to the chuck body 11 in a sliding manner, and the distance between the sliding blocks 12 and the central axis of the chuck body 11 is the same;
a support 2, the support 2 being connected to the chuck body 11;
the first guide rails 3 are connected to the support part 2, the number of the first guide rails 3 is the same as that of the sliding blocks 12, and the direction of each first guide rail 3 is parallel to the sliding direction of one corresponding sliding block 12;
the first sliding seat 4 is connected with the first guide rail 3 in a sliding manner, the first sliding seat 4 is connected to one of the sliding blocks 12, and a first rack 41 is arranged on the upper surface of the first sliding seat 4;
the clamping seat adjusting mechanism 5 comprises a clamping seat body 51 and a first fastening piece 52, a second rack 53 matched with the first rack 41 is arranged on the lower portion of the clamping seat body 51, the clamping seat body 51 is connected to the upper portion of the first sliding seat 4, the clamping seat body 51 comprises a supporting portion 512 used for supporting a circular workpiece and a clamping portion 511 used for clamping the outer circumferential surface or the inner circumferential surface of the circular workpiece, and the first fastening piece 52 is used for fastening and connecting the clamping seat body 51 and the first sliding seat 4.
As an embodiment, the first rack 41 includes rack units that are parallel and symmetrical to each other, a strip-shaped dovetail groove is disposed between the two rack units as the second guide rail 42, a limiting member slidably engaged with the dovetail groove is disposed at a lower portion of the cartridge body 51 for limiting, the first fastening member 52 may be a vertical screw, a screw hole in the vertical direction is arranged at the position of the clamp seat body 51, which is opposite to the bottom of the dovetail groove, the screw is screwed in the screw hole, so that the bottom of the screw is tightly matched with the bottom of the dovetail groove, the second rack 53 is tightly matched with the first rack 41 by utilizing the matching of the limiting piece and the dovetail groove, the connecting structure enables the first fastening piece 52 to be tightly locked, when the clamping seat body 51 is used for clamping a circular ring workpiece, even if the numerical control machine tool exerts a large acting force on the workpiece, the spacing matching of the clamping seat body 51 and the first sliding seat 4 cannot be loosened, and the processing precision of the circular workpiece 7 is ensured.
Example 2
The clamping seat adjusting assembly of the self-centering clamping device for the circular workpiece in embodiment 1, wherein a third rack is arranged on the upper surface of the sliding block 12;
also comprises an L-shaped connecting piece 6; one end of the L-shaped connecting piece 6 is provided with a fourth rack matched with the third rack, and the other end of the L-shaped connecting piece 6 is connected to the first sliding seat 4;
and a second fastening piece 61, wherein the second fastening piece 61 is used for fastening and connecting the L-shaped connecting piece 6 with the sliding block 12.
In the above structure, the structure of the third and fourth racks can refer to the structure of the first and second racks 41 and 53, and as a preferred embodiment, the tooth-groove structure of the third rack can refer to the tooth-groove structure of the first rack 41 in fig. 6 to 8.
Example 3
The clamping seat adjusting assembly of the self-centering clamping device for the circular ring workpiece in embodiment 1, wherein the clamping portion 511 of the clamping seat body 51 is provided with two clamping strips in the vertical direction. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces is characterized in that the surface of the clamping strip is arc-shaped.
In the above structure, when the annular workpiece is clamped, the two clamping strips of the clamping portion 511 are used for contacting the circumferential surface of the annular workpiece, so that the clamping device is suitable for clamping annular workpieces with different diameters, and the stability of clamping the annular workpiece is further improved.
Example 4
The clamping seat adjusting assembly of the self-centering clamping device for the circular ring workpiece in embodiment 1, wherein a second guide rail 42 is arranged in the center of the upper portion of the first sliding seat 4, and the clamping seat body 51 is connected with the second guide rail 42 in a sliding fit manner.
In the above structure, the second guide rail 42 limits the moving direction of the cassette body 51, the second guide rail 42 is parallel to the first guide rail 3, and the second guide rail 42 limits the moving direction of the cassette body 51, so that the cassette body 51 can only move along the direction of the second guide rail 42, and the influence on the accuracy of centering and clamping the circular ring workpiece caused by the lateral displacement of the cassette body 51 is avoided.
Example 5
The clamping seat adjusting assembly of the self-centering clamping device for the circular ring workpiece described in embodiment 1, wherein 2 clamping seat adjusting mechanisms 5 are connected to an upper portion of each first sliding seat 4, and the directions of the clamping portions 511 of the 2 clamping seat adjusting mechanisms 5 are opposite.
Through every the upper portion of first sliding seat 4 is connected with 2 cassette adjusting part, to the less ring work piece of diameter, accessible joint portion 511 towards the outer lane of the cassette adjusting part centre gripping ring work piece of revolving stage body, to the more ring work piece of diameter, accessible joint portion 511 deviates from the inner circle of the cassette adjusting part centre gripping ring work piece of revolving stage body.
Example 6
The clamping seat adjusting assembly of the self-centering clamping device for the annular workpiece in embodiment 1, wherein a tooth groove of the first rack 41 is in a straight shape, and the tooth groove is perpendicular to the first guide rail 3.
Example 7
The clamping seat adjusting assembly of the self-centering clamping device for the annular workpiece in embodiment 1, wherein a tooth groove of the first rack 41 is in a straight shape, and an included angle between the tooth groove and the first guide rail 3 is 30 to 60 degrees, preferably 45 degrees.
Above as an optimal scheme, above structure can further improve the stability of ring work piece clamping, further avoids cassette body 51 to the direction (side) of the first guide rail 3 of perpendicular to slightly squinting, even the digit control machine tool exerts very big effort to the work piece, the spacing cooperation of cassette body 51 and first sliding seat 4 can not take place to become flexible.
Example 8
The clamping seat adjusting assembly of the self-centering clamping device for the annular workpiece in embodiment 1, wherein a tooth groove of the first rack 41 is L-shaped, and an included angle between any edge of the L-shape and the first guide rail 3 is 30 to 60 degrees, preferably 45 degrees.
As a more preferable scheme, the above structure can further improve the stability of clamping the circular ring workpiece, further avoid slight deviation of the cassette body 51 to the direction (side) perpendicular to the first guide rail 3, and even if the numerical control machine applies a large acting force to the workpiece, the spacing fit between the cassette body 51 and the first sliding seat 4 will not loosen.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. Ring work piece is from cassette adjusting part of centering clamping device, its characterized in that includes:
the hydraulic chuck mechanism comprises a chuck body and a plurality of sliding blocks, the sliding blocks are distributed in a circumferential array and are connected to the chuck body in a sliding mode, and the distance between the sliding blocks and the central axis of the chuck body is the same;
a support connected to the chuck body;
the first guide rails are connected to the supporting pieces, the number of the first guide rails is the same as that of the sliding blocks, and the direction of each first guide rail is parallel to the sliding direction of the corresponding sliding block;
the first sliding seat is connected with the first guide rail in a sliding manner, the first sliding seat is connected with one of the sliding blocks, and a first rack is arranged on the upper surface of the first sliding seat;
the clamping seat adjusting mechanism comprises a clamping seat body and a first fastening piece, a second rack matched with the first rack is arranged on the lower portion of the clamping seat body, the clamping seat body is connected to the upper portion of the first sliding seat, the clamping seat body comprises a supporting portion used for supporting a circular workpiece and a clamping portion used for clamping the outer circumferential surface or the inner circumferential surface of the circular workpiece, and the first fastening piece is used for fastening and connecting the clamping seat body and the first sliding seat.
2. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces according to claim 1, wherein a third rack is arranged on the upper surface of the sliding block;
the device also comprises an L-shaped connecting piece; one end of the L-shaped connecting piece is provided with a fourth rack matched with the third rack, and the other end of the L-shaped connecting piece is connected to the first sliding seat;
the L-shaped connecting piece is fixedly connected with the sliding block through the first fastening piece.
3. The clamping seat adjusting assembly of the self-centering clamping device for the circular ring workpiece as recited in claim 1, wherein the clamping portion of the clamping seat body is provided with two clamping strips in a vertical direction.
4. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces according to claim 3, wherein the surface of the clamping strip is arc-shaped.
5. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces as recited in claim 1, wherein a second guide rail is provided at the center of the upper portion of the first sliding seat, and the clamping seat body is connected with the second guide rail in a sliding fit manner.
6. The clamp seat adjusting assembly of the self-centering clamping device for the circular ring workpiece as recited in claim 1, wherein 2 clamp seat adjusting mechanisms are connected to an upper portion of each first sliding seat, and clamping portions of the 2 clamp seat adjusting mechanisms face opposite directions.
7. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces as claimed in claim 1, wherein the tooth grooves of the first rack are in a straight shape, and the tooth grooves are perpendicular to the first guide rail.
8. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces as claimed in claim 1, wherein the tooth grooves of the first rack are in a straight shape, and the included angle between the tooth grooves and the first guide rail is 30-60 degrees.
9. The clamping seat adjusting assembly of the self-centering clamping device for the circular workpieces according to claim 1, wherein the tooth grooves of the first rack are L-shaped, and an included angle between any side of the L-shaped tooth grooves and the first guide rail is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220624263.XU CN216938480U (en) | 2022-03-21 | 2022-03-21 | Clamping seat adjusting assembly of self-centering clamping device for circular ring workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220624263.XU CN216938480U (en) | 2022-03-21 | 2022-03-21 | Clamping seat adjusting assembly of self-centering clamping device for circular ring workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216938480U true CN216938480U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220624263.XU Active CN216938480U (en) | 2022-03-21 | 2022-03-21 | Clamping seat adjusting assembly of self-centering clamping device for circular ring workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216938480U (en) |
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2022
- 2022-03-21 CN CN202220624263.XU patent/CN216938480U/en active Active
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