CN211163604U - Clamp for circular workpiece - Google Patents
Clamp for circular workpiece Download PDFInfo
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- CN211163604U CN211163604U CN201921585350.3U CN201921585350U CN211163604U CN 211163604 U CN211163604 U CN 211163604U CN 201921585350 U CN201921585350 U CN 201921585350U CN 211163604 U CN211163604 U CN 211163604U
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- limit
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- circular workpiece
- cam
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Abstract
The utility model is suitable for an anchor clamps technical field provides an anchor clamps of circular workpiece, including the base, rotate on the base and be provided with the cam, evenly distributed has three arm lock around the cam, and the arm lock is obtuse triangle, and the nodical position on its longest limit and shortest limit rotates with the base to be connected, and the nodical position on the long limit of second and shortest limit rotates and is provided with first gyro wheel, and the nodical position on the long limit of second and longest limit rotates and is provided with the second gyro wheel, is provided with the spring between the long limit of second and the base. The fixture for the circular workpiece is simple in structure, convenient to operate, firm and reliable, and three clamping point positions are synchronously clamped or synchronously loosened.
Description
Technical Field
The utility model relates to an anchor clamps especially relate to an anchor clamps of circular workpiece.
Background
The clamp is mainly used for clamping a workpiece, and the design of the clamp usually has certain specificity, namely, the clamp can be correspondingly designed according to the shape of the workpiece.
The clamping of circular work piece adopts three point location's mode usually among the prior art, and drive structure is complicated, and the clamping of three setpoint is asynchronous, and the centre gripping is firm inadequately.
For example, in patent CN209319554U, an arc-shaped jacket slidably connected to a slide rail is disposed between a headstock and a tailstock, the flat side of the arc-shaped jacket is perpendicular to the length direction of the slide rail, 3 clamping plates located in the radial direction of the arc-shaped jacket are disposed in the arc-shaped jacket, a roller having a rotation track parallel to the flat side of the arc-shaped jacket is disposed at one end of the clamping plate corresponding to the inner side of the arc-shaped jacket, and an adjusting groove for the clamping plate to slide telescopically is disposed on the clamping plate. When the clamping device is applied, the clamping plate moves in the adjusting groove by pushing the push rod until the roller contacts the surface of a workpiece, the workpiece is driven to rotate, the roller rotates along with the workpiece, and the arc-shaped clamping sleeve and the clamping plate do not rotate; and because the arc jacket is C-shaped, the grinding wheel can contact the surface of the workpiece from the opening of the arc jacket.
Therefore, the utility model provides an anchor clamps of circular workpiece, its simple structure, convenient operation, three tight position synchronous clamping or synchronous loosening of pressing from both sides, it is firm reliable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anchor clamps of circular workpiece, its simple structure, convenient operation, three tight position synchronous clamping or synchronous loosening of pressing from both sides, it is firm reliable.
The utility model provides an anchor clamps of circular workpiece, including the base, rotate on the base and be provided with the cam, evenly distributed has three arm lock around the cam, and the arm lock is obtuse triangle, and the nodical position on its longest limit and shortest limit rotates with the base to be connected, and the nodical position on the second long limit and shortest limit rotates and is provided with first gyro wheel, and the nodical position on the second long limit and longest limit rotates and is provided with the second gyro wheel, is provided with the spring between the long limit of second and the base.
In another embodiment, the cam profile is comprised of three sequentially spaced apart diverging line segments and straight line segments.
To sum up, the utility model has the advantages of, this circular workpiece's anchor clamps simple structure, its simple structure, convenient operation, three tight position synchronous clamping or synchronous loosening of pressing from both sides, it is firm reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below 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 schematic view of a clamp for a circular workpiece according to an embodiment of the present invention.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting. For example, the description of a structure having a first feature over or on a second feature may include direct contact between the first and second features, or another feature disposed between the first and second features, such that the first and second features are not in direct contact.
Spatially relative terms, such as above or below, are used herein for ease of description of one element or feature relative to another element or feature in the figures. Devices that are used or operated in different orientations than those depicted in the figures are included.
The shapes, sizes, thicknesses, and angles of inclination in the drawings may not be drawn to scale or simplified for clarity of illustration, but are provided for illustration only.
As shown in fig. 1, the clamp for the circular workpiece comprises a base 1, a cam 2 is rotatably arranged on the base 1, and three clamping arms 5 are uniformly distributed around the cam 2;
the clamping arm 5 is an obtuse triangle, the intersection point position of the longest edge and the shortest edge of the clamping arm is rotationally connected with the base 1, the intersection point position of the second long edge and the shortest edge is rotationally provided with a first roller 7, the intersection point position of the second long edge and the longest edge is rotationally provided with a second roller 8, and a spring 9 is arranged between the second long edge and the base 1.
The diameter of the first roller 7 is smaller than the diameter of the second roller 8.
Preferably, the profile of the cam 2 consists of three successive involute segments 3 and straight segments 4 spaced apart.
The utility model discloses an action principle as follows: as shown in fig. 1, when a circular workpiece 10 needs to be clamped, the cam 2 rotates until the involute section 3 contacts with the shortest side of the clamping arm 5, at this time, the clamping arm 5 is opened to be beneficial to receiving the circular workpiece 10, after the circular workpiece 10 is received, the cam 2 rotates until the straight section 3 contacts with the shortest side of the clamping arm 5, and the clamping arm 5 will clamp the circular workpiece 10. Due to the existence of the first roller 7 and the second roller 8, the contact between the cam 2 and the clamping arm 5 and the contact between the clamping arm 5 and the circular workpiece 10 are rolling contact, and the friction force is small.
The utility model provides an anchor clamps of circular workpiece, its simple structure, convenient operation, three tight position synchronous clamping or synchronous loosening of pressing from both sides, it is firm reliable.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides an anchor clamps of circular workpiece, its characterized in that, includes the base, rotates on the base and is provided with the cam, and evenly distributed has three arm lock around the cam, and the arm lock is obtuse triangle, and the nodical position on its longest limit and shortest limit rotates with the base to be connected, and the nodical position on the second long limit and shortest limit rotates and is provided with first gyro wheel, and the nodical position on the second long limit and longest limit rotates and is provided with the second gyro wheel, is provided with the spring between the second long limit and the base.
2. A circular workpiece holder as in claim 1 wherein the first roller has a diameter less than the diameter of the second roller.
3. A circular workpiece holder as in claim 1 wherein the cam has a profile comprising three sequentially spaced apart diverging and straight segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585350.3U CN211163604U (en) | 2019-09-23 | 2019-09-23 | Clamp for circular workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585350.3U CN211163604U (en) | 2019-09-23 | 2019-09-23 | Clamp for circular workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211163604U true CN211163604U (en) | 2020-08-04 |
Family
ID=71818532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921585350.3U Active CN211163604U (en) | 2019-09-23 | 2019-09-23 | Clamp for circular workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211163604U (en) |
-
2019
- 2019-09-23 CN CN201921585350.3U patent/CN211163604U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210913 Address after: 201707 Building 1, No. 303, Xinke Road, Qingpu District, Shanghai Patentee after: Shanghai boshiguang Semiconductor Technology Co.,Ltd. Address before: 710065 No.1, unit 5, building 14, zhangbabeigou village, high tech Zone, Xi'an City, Shaanxi Province Patentee before: Xing Hequn |