CN214349703U - An inflatable mandrel - Google Patents
An inflatable mandrel Download PDFInfo
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- CN214349703U CN214349703U CN202022456762.6U CN202022456762U CN214349703U CN 214349703 U CN214349703 U CN 214349703U CN 202022456762 U CN202022456762 U CN 202022456762U CN 214349703 U CN214349703 U CN 214349703U
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- ball
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- nut
- ball sleeve
- compression spring
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Abstract
一种内胀式心轴是由夹具本体、拉轴、滚珠套组件、导向套、压套、螺母、销和压缩弹簧轴组成，其特征是，拉轴装入夹具本体孔内后装入插销，夹具本体右端外圆依次装入导向套、滚珠套组件、压缩弹簧、滚珠套组件、导向套，再装入压套，拧入螺母；所述滚珠套组件是由滚珠套、滚珠架和滚珠组成，滚珠套上均匀分布有6个孔，每个孔内装有滚珠套和滚珠。拧紧螺母，滚珠在滚珠套锥面的作用下，滚珠向外移动，胀紧加工件内孔；松开螺母，滚珠套在压缩弹簧的作用下，导向套之间距离增加，滚珠向内移动，可以方便卸下工件。
An internal expansion mandrel is composed of a fixture body, a pull shaft, a ball sleeve assembly, a guide sleeve, a pressure sleeve, a nut, a pin and a compression spring shaft. , the outer circle of the right end of the fixture body is sequentially loaded into the guide sleeve, the ball sleeve assembly, the compression spring, the ball sleeve assembly, the guide sleeve, and then into the pressure sleeve and screwed into the nut; the ball sleeve assembly is composed of a ball sleeve, a ball cage and a ball There are 6 holes evenly distributed on the ball sleeve, and each hole is equipped with a ball sleeve and a ball. Tighten the nut, the ball moves outward under the action of the tapered surface of the ball sleeve, and the inner hole of the workpiece is expanded; loosen the nut, the ball sleeve is under the action of the compression spring, the distance between the guide sleeves increases, and the ball moves inward. The workpiece can be easily removed.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to the technical field of machining.
Background
The coaxiality of the shaft sleeve hole and the excircle is ensured, clamps are required to be used, the types of the clamps are various, the general structure is complex, and the precision requirement is high.
Disclosure of Invention
The invention aims to design and manufacture a hole machining clamp which is simple in structure, convenient to manufacture and high in precision.
An internal expanding mandrel is composed of a clamp body, a pull shaft, a ball sleeve assembly, a guide sleeve, a pressing sleeve, a nut, a pin and a compression spring shaft, and is characterized in that the pull shaft is installed in a hole of the clamp body and then is installed with a bolt, the guide sleeve, the ball sleeve assembly, the compression spring, the ball sleeve assembly and the guide sleeve are sequentially installed on the excircle of the right end of the clamp body, then the pressing sleeve is installed, and the nut is screwed in; the ball sleeve assembly is composed of a ball sleeve, a ball frame and balls, 6 holes are uniformly distributed in the ball sleeve, and the ball sleeve and the balls are arranged in each hole. Screwing the nut, and moving the ball outwards under the action of the conical surface of the ball sleeve to expand the inner hole of the workpiece; the nut is loosened, the ball sleeve is under the action of the compression spring, the distance between the guide sleeves is increased, the ball moves inwards, and the workpiece can be conveniently dismounted.
Drawings
FIG. 1 is a front view of the present invention
In the figure, a clamp body (1), a pull shaft (2), a rolling ball sleeve assembly (3), a guide sleeve (4), a pressing sleeve (5), a nut (6), a thimble (7), a pin shaft (8) and a compression spring (9);
FIG. 2 is a front view of the middle clamp body (1) of the present invention
In the drawing, a spigot matched with a flange plate on a lathe is arranged at the right end, a pulling shaft is arranged in an inner hole, and screws can penetrate through 4 uniformly distributed screw holes to fasten the body on the flange; the clamp body is provided with a waist-shaped hole, and the pin shaft (8) can move in the waist-shaped hole;
FIG. 3 is a cross-sectional view of a ball-and-socket assembly (3) of the present invention
In the figure, 6 holes are uniformly distributed on a ball sleeve (3-1), a ball frame (3-2) is arranged in the 6 holes, and balls (3-3) are arranged in the ball frame holes;
Detailed Description
An internal expanding mandrel is composed of a clamp body, a pull shaft, a ball sleeve assembly, a guide sleeve, a pressing sleeve, a nut, a pin and a compression spring shaft, and is characterized in that the pull shaft is installed in a hole of the clamp body and then is installed with a bolt, the guide sleeve, the ball sleeve assembly, the compression spring, the ball sleeve assembly and the guide sleeve are sequentially installed on the excircle of the right end of the clamp body, then the pressing sleeve is installed, and the nut is screwed in; the ball sleeve assembly is composed of a ball sleeve, a ball frame and balls, 6 holes are uniformly distributed in the ball sleeve, and the ball sleeve and the balls are arranged in each hole. Screwing the nut, and moving the ball outwards under the action of the conical surface of the ball sleeve to expand the inner hole of the workpiece; the nut is loosened, the ball sleeve is under the action of the compression spring, the distance between the guide sleeves is increased, the ball moves inwards, and the workpiece can be conveniently dismounted. When the balls are loaded, lubricating oil is coated on the balls; in order to increase the strength, the thimble hole on the clamp body can be propped by the thimble.
The invention has simple structure, convenient manufacture and use and is popular with operators.
Claims (1)
1. An internal expanding mandrel is composed of a clamp body, a pull shaft, a ball sleeve assembly, a guide sleeve, a pressing sleeve, a nut, a pin and a compression spring shaft, and is characterized in that the pull shaft is installed in a hole of the clamp body and then is installed with the pin, and the guide sleeve, the ball sleeve assembly, the compression spring, the ball sleeve assembly, the guide sleeve, the pressing sleeve and the nut are installed on the excircle of the right end of the clamp body; the ball sleeve assembly is composed of a ball sleeve, a ball frame and balls, 6 holes are uniformly distributed in the ball sleeve, and the ball sleeve and the balls are arranged in each hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456762.6U CN214349703U (en) | 2020-10-26 | 2020-10-26 | An inflatable mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456762.6U CN214349703U (en) | 2020-10-26 | 2020-10-26 | An inflatable mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214349703U true CN214349703U (en) | 2021-10-08 |
Family
ID=77969731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022456762.6U Active CN214349703U (en) | 2020-10-26 | 2020-10-26 | An inflatable mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214349703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493625A (en) * | 2023-02-28 | 2023-07-28 | 台州市百达电器有限公司 | A punching jig for a hollow shaft of a motor |
| CN117381003A (en) * | 2023-10-30 | 2024-01-12 | 苏州富日智能装备有限公司 | A pneumatic mechanical internal expansion mechanism |
-
2020
- 2020-10-26 CN CN202022456762.6U patent/CN214349703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493625A (en) * | 2023-02-28 | 2023-07-28 | 台州市百达电器有限公司 | A punching jig for a hollow shaft of a motor |
| CN117381003A (en) * | 2023-10-30 | 2024-01-12 | 苏州富日智能装备有限公司 | A pneumatic mechanical internal expansion mechanism |
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