阅读说明：本技术 模块化的气动缸和气动缸在电机主轴中的应用 (Modular pneumatic cylinder and use of a pneumatic cylinder in a spindle of an electric machine ) 是由 M.韦尔特 F.沃尔夫 A.费希尔 于 2020-05-14 设计创作，主要内容包括：一种模块化的气动缸(1),其具有多个气缸级(4)、气缸底(2)、气缸盖(3)和在气缸底和气缸盖之间延伸的轴向的纵长孔(5),所述纵长孔在气缸底(2)中通入活塞杆(8)中并且设置用于容纳固定器件(7),所述气动缸还具有同心地围绕所述孔(5)布置的多个盘状的气缸级(4),这些气缸级分别包括环形地围绕所述孔(5)的活塞(10)以及从所述活塞(10)径向地延伸的且能够被压缩空气加载的活塞盘(9),其中,所述气缸级(4)的活塞(10)与所述活塞杆(8)处于有效作用中,使得所述气动缸(1)的压力加载引发所述活塞杆(8)的冲程。(A modular pneumatic cylinder (1) having a plurality of cylinder stages (4), a cylinder bottom (2), a cylinder head (3) and an axial longitudinal bore (5) extending between the cylinder bottom and the cylinder head, the longitudinal bore opens into the piston rod (8) in the cylinder bottom (2) and is provided for receiving a fastening means (7), the pneumatic cylinder also has a plurality of disc-shaped cylinder stages (4) arranged concentrically around the bore (5), the cylinder stages each comprise a piston (10) which surrounds the bore (5) in an annular manner and a piston disk (9) which extends radially from the piston (10) and can be acted on by compressed air, wherein the piston (10) of the cylinder stage (4) is in active action with the piston rod (8), so that the pressure loading of the pneumatic cylinder (1) induces a stroke of the piston rod (8).)

1. A modular pneumatic cylinder (1) having a plurality of cylinder stages (4), a cylinder bottom (2), a cylinder head (3) and an axial longitudinal bore (5) extending between the cylinder bottom and the cylinder head, the longitudinal bore opens into the piston rod (8) in the cylinder bottom (2) and is provided for receiving a fastening means (7), the pneumatic cylinder also has a plurality of disc-shaped cylinder stages (4) arranged concentrically around the bore (5), the cylinder stages each comprise a piston (10) which surrounds the bore (5) in an annular manner and a piston disk (9) which extends radially from the piston (10) and can be acted on by compressed air, wherein the piston (10) of the cylinder stage (4) is in active action with the piston rod (8), so that the pressure loading of the pneumatic cylinder (1) induces a stroke of the piston rod (8).

2. The pneumatic cylinder (1) according to claim 1, characterized in that the piston disc (9) is constituted by a membrane made of plastic or metal.

3. The pneumatic cylinder (1) as claimed in claim 1, characterized in that the piston disc (9) is designed as a rubber membrane.

4. A pneumatic cylinder (1) according to one of the preceding claims, characterized in that the cylinder stages (4) each comprise a cylinder stage wall (12) forming part of the outer circumference of the pneumatic cylinder (1) and a cylinder stage cover (13) separating the cylinder stages (4) from each other.

5. A pneumatic cylinder (1) according to one of the preceding claims, characterized in that the cylinder (1) is designed as a double-acting pneumatic cylinder, so that the feed stroke and the return stroke can be realized by the exhaust and/or charging of the pneumatic cylinder.

6. The pneumatic cylinder (1) according to one of claims 1 to 4, characterized in that it is designed as a single-acting pneumatic cylinder and that the return of the piston disc (9) can be effected in the return stroke after pressure loading by means of at least one spring (16) which is arranged in the cylinder bottom (2) and can be brought into effective action with at least one cylinder stage (4).

7. A pneumatic cylinder (1) as claimed in claim 6, characterized in that the spring (16) is designed as a wave spring.

8. A pneumatic cylinder (1) as in any one of the above claims, characterized by the introduction of compressed air through an axial elongated hole (5) connected to the cylinder stages (4) through channels or notches (6) in the piston (10).

9. A pneumatic cylinder (1) as claimed in any preceding claim, characterised in that the cylinder wall (12) of the cylinder stage (4) is penetrated by a plurality of axially extending bores, which originate in the cylinder head (3) and open into the cylinder bottom (2), through which bores a plurality of cylinder stages (4) can be connected to each other by means of stud bolts (17).

10. The pneumatic cylinder (1) according to claim 9, characterised in that channels or indentations are provided in the cylinder wall (12) of the cylinder stages (4), which channels or indentations are pneumatically connected with at least one hole in the cylinder stage (4) and the cylinder wall (12) so that venting can be achieved by means of at least one stud bolt (17).

11. The pneumatic cylinder (1) as claimed in one of the preceding claims, characterized in that the cylinder stage wall (12) and the cylinder stage cover (13) of the cylinder stage (4) are designed in one piece.

12. A pneumatic cylinder as claimed in any preceding claim, wherein the cylinder (1) or a component part of the cylinder (1) is made of metal or of plastic or a combination of metal and plastic.

13. The pneumatic cylinder (1) as claimed in one of the preceding claims, characterized in that a free end of the cylinder stage cover (13) abuts against the piston (10) and a free end of the piston disc (9) abuts against the cylinder stage wall (12).

14. A pneumatic cylinder (1) according to one of the preceding claims, characterized in that a free space (14) is present between the cylinder stage cover (13) and the piston disc (9), which free space is pneumatically connected to the axial longitudinal bore (5).

15. Use of a pneumatic cylinder (1) according to one of the preceding claims with a motor spindle (18) which contains a motor and a spindle which can be driven in rotation by the motor in a spindle housing (19) and which has a tool receptacle (20) for a tool for machining a workpiece, wherein the spindle has a clamping device or a tool holder for clamping a tool, wherein the pneumatic cylinder (1) is fixed directly or indirectly on the spindle housing (19), and wherein the piston rod (8) is in force-transmitting and movement-effective connection with a push rod (21) which can be moved axially in a longitudinal bore of the spindle and which can be moved into a release position or into a locking position.

16. Use according to claim 15, characterised in that the cylinder bottom (2) of the pneumatic cylinder (1) is designed as an integral part of the spindle housing (19).