Guide bushing system

Abstract

The present invention relates to a guide bushing system 100, comprising a guide bushing 10 configured to receive a guide clamp 20, a plurality of guide clamps 20 of different types that can be introduced into the guide bushing 10, a drive unit 30 configured to perform axial movement of at least one of the guide clamps 20 inside the guide bushing 10, and a plurality of spindle caps 40 each adapted to at least one type of one of the plurality of guide clamps 20, wherein each spindle cap 40 of the plurality of spindle caps 40 can be connected to the guide bushing 10 for cooperation with the guide clamp 20 to which the respective spindle cap 40 is adapted.

Description

Technical Field

[0001] The present invention relates to a guide bush. In particular, the present invention is configured to receive a guide collet and includes a drive unit that acts on the guide collet and is configured to perform an axial movement of the guide collet inside the guide bush (a guide bush configured to receive a guide collet and including a drive unit configured to act on the guide collet to perform an axial movement of the guide collet inside the guide bush), a guide collet that can be inserted into the guide bush, and a spindle cap that is adapted to the design of the guide collet and can be connected to the guide bush. The design refers to the design of a pull-type guide collet (Zug-Fuehrungszange), a thrust-type guide collet (Druck-Fuehrungszange), a double-cone guide collet (Doppel-Konus-Fuehrungszange), or a guide collet as a standard guide collet.

Background Art

[0002] For example, the guide bushes and collets known from Patent Document 1, Patent Document 2, and Patent Document 3 are used to hold and guide a bar of material to be machined during a machining process and to support this against machining forces. In this way, very long and thin workpieces can be manufactured with low machining tolerances. Since variations in the diameter of the material bar are corrected using the guide bush, bars of different diameters can always be processed using the same guide bush.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] However, in practice, it often becomes necessary to remove the entire guide bushing and replace it with another guide bushing that has the desired type of guide collet, because different types of collets are required for machining the workpiece.

[0005] The drawback of this procedure is the high cost involved in materials, time, and labor for retaining and replacing the guide bushings.

[0006] Therefore, the objective of the present invention is to create a guide bush that is simply constructed and versatile, and can be used with guide collets of different designs. [Means for solving the problem]

[0007] According to the present invention, this objective is solved by a guide bush system having the features of claim 1. Dependent claims disclose advantageous embodiments of the present invention.

[0008] The basic idea of ​​the present invention is to create a guide bushing system with a guide bush that does not require any special adaptation for housing the collets, so in principle, any guide collet from a plurality of differently designed guide collets can be inserted into the guide bush of the system according to the present invention (so in principle, a guide bushing system is created with a guide bush that does not require any special adaptation for housing the collets, so in principle, each guide collet from a plurality of differently designed guide collets can be inserted into the guide bush of the system according to the present invention). At the same time, a plurality of spindle caps are provided, each adapted in case to at least one design of one of the plurality of guide collets, and each spindle cap is connectable to the guide bush, and when connected to the guide bush, the spindle cap cooperates with the adapted guide collet.

[0009] In particular, the spindle cap of the system designed according to the present invention has beveled edges that are adapted to the type of guide collet. For example, when using a double-cone collet, a beveled start is required on the side of the spindle cap facing the guide bush, while when using a retractable collet, the beveled start is required on the side of the spindle cap away from the guide bush.

[0010] If necessary, the system also has multiple actuators, each adapted to the design of at least one of several guide collets, which can also be swapped as needed and connected, on the one hand to cooperate with the drive unit, and on the other hand, for each actuator to cooperate with the adapted guide collet.

[0011] According to the present invention, a guide bushing system is proposed, comprising: a guide bush configured to receive a guide collet; a plurality of guide collets of different types that can be inserted into the guide bush; a drive unit configured to perform axial movement of at least one of the guide collets within the guide bush; and a plurality of spindle caps, each adapted to the design of at least one of the plurality of guide collets, wherein each of the plurality of spindle caps can be connected to the guide bush for cooperation with the guide collet to which the respective spindle cap is adapted.

[0012] The guide bushing system is therefore designed so that each guide collet of the system can be inserted into the guide bush and brought into operation by a spindle cap designed to match the design of the guide collet. The spindle cap can be connected to the guide bush using different connecting means, but it is preferable to connect the spindle cap to the guide bush using the same connecting means. The connecting means can be designed as an independent element or can be a device formed on the guide bush and / or guide collet, such as a screw thread.

[0013] Multiple actuators are also provided, each adapted to the design of at least one of a plurality of guide collets. Each actuator is configured for operation with the drive unit and the guide collet to which it is adapted.

[0014] The multiple guide collets preferably include at least one retraction collet and / or at least one push-in collet and / or at least one double-cone collet and / or a standard guide collet. In particular, it is assumed that the multiple guide collets include at least two guide collets of different designs selected from the group of guide collets including retraction type guide collets, push-in collets, double-cone collets and standard guide collets. In particular, it is assumed that the multiple guide collets include a retraction collet and a push-in collet or a double-cone collet or a standard collet. Alternatively, it is assumed that the multiple guide collets include a double-cone collet and a retraction collet or a push-in collet or a standard guide collet. As yet another alternative, it is assumed that the multiple guide collets include a push-in collet and a double-cone collet or a retraction collet or a standard guide collet. Finally, it is provided that the multiple guide collets include a standard guide collet and a push-in collet or a double-cone collet or a retraction collet. Therefore, it is particularly preferable that multiple actuators have at least one retraction component and / or one push component. In the case of a standard guide collet, a retraction component is also preferably provided, but when a standard guide collet is used, i.e., during the operation of the guide bush, the inner diameter is maintained constant and does not undergo any radial adjustment. This is ensured by inserting the standard guide collet into the guide bush to a predetermined depth, and therefore to a predetermined inner diameter, in particular by screwing it in and fixing it in place, in particular by removing the drive unit from the operating state.

[0015] It is particularly preferable that each of the multiple actuators is detachably connected to the drive unit.

[0016] Finally, each spindle cap preferably has threads configured to screw into threads provided on the guide bush. This design allows the spindle cap to be securely and precisely mounted (in position) to the guide bush, and enables quick replacement of the spindle cap, guide clamp, and, if necessary, the actuator.

[0017] The present invention will be described in more detail below with reference to particularly preferred embodiments shown in the accompanying drawings. [Brief explanation of the drawing]

[0018] [Figure 1] This figure shows a particularly preferred embodiment of a guide bush equipped with a double-drilled collet. [Figure 2] This figure shows a particularly preferred guide bush equipped with a standard guide collet. [Figure 3] This figure shows a guide bushing that is equipped with a retractable collet and is a particularly preferred design. [Modes for carrying out the invention]

[0019] Accordingly, the drawings show a guide bushing system 100 with a guide bush 10 designed to accept one guide collet 20 in each case, the guide collet 20 accepted by the guide bush 10 in the drawings is selected from a plurality of guide collets 20 of different designs that can be inserted into the guide bush 10, designed as a double-cone collet in Figure 1, as a standard guide collet in Figure 2, and as a retractable collet in Figure 3.

[0020] The guide bush has a drive unit 30 (a drive unit 30 configured to effect axial movement of at least one of these guide collets 20, i.e., the double cone collet shown in FIG. 1 and the push-in collet shown in FIG. 3) set inside the guide bush 10 to effect axial movement of at least one of these guide collets 20. Depending on the design of the guide collet 20 inserted into the guide bush 10, the drive unit 30 has a pull-in or push-in component 50 that can be removably connected to the drive unit 30. In FIG. 1, it can be seen that the drive unit 30 has a push-in component 50 acting on the double cone collet 20, while the drive unit 30 in FIG. 3 is equipped with a pull-in component 50 acting on the pull-in collet 50(20).

[0021] In the case of the standard guide collet shown in FIG. 2, since the inner diameter remains unchanged during operation of the guide bush, the drive unit does not function. Only by appropriate fixation is it ensured that the standard guide collet cannot be displaced axially.

[0022] Finally, a plurality of spindle caps 40 are provided, each adapted to the design of at least one of a plurality of guide collets 20, and it can be seen from the drawings that each spindle cap 40 of the plurality of spindle caps 40 can be connected to the guide bush 10 to cooperate with the guide collet 20 to which the respective spindle cap 40 is adapted. In particular, it can be seen from the drawings that the spindle cap 40 used for the double cone collet in FIG. 1 is different from the spindle cap 40 used for the standard guide collet in FIG. 2 and the spindle cap 40 used for the pull-in collet in FIG. 3. In any case, the spindle cap 40 has a thread designed to be screwed onto a thread provided on the guide bush 10.

[0023] In the case of the double-cone collet shown in Figure 1 and the retractable collet shown in Figure 3, the spindle cap 40 forms a run-on slope (Anlaufschraege) that is adapted to the respective type of guide collet. In the case of the standard guide collet shown in Figure 2, the spindle cap 40 for the standard guide collet forms a contact surface that limits the axial penetration depth into the guide bush 10. [Explanation of Symbols]

[0024] 10: Guide bush 100: Guide bushing system 20: Guide Collet 20: Double-ended collet 30: Drive unit 40: Spindle cap 50: Retractable or pushable parts

Claims

1. A guide bushing system (100), A guide bush (10) designed to receive a guide collet (20), Multiple guide collets (20) of different designs that can be inserted into the same guide bush (10), A drive unit (30) is designed to move at least one of the guide collets (20) in the axial direction inside the guide bush (10), A plurality of spindle caps (40), each adapted to at least one design of one of the plurality of guide collets (20), wherein each of the plurality of spindle caps (40) can be connected to the guide bush (10) for cooperation with the guide collet (20) to which each of the spindle caps (40) is adapted, A guide bushing system having the following features.

2. A guide bushing system (100) according to claim 1, comprising a plurality of actuators (50) each adapted to the design of at least one of the plurality of guide collets (20), wherein each actuator is configured for cooperation with the drive unit (30) and the guide collet (20) to which each actuator (50) is adapted.

3. A guide bushing system (100) according to claim 1 or 2, wherein the plurality of guide collets (20) each have at least one retraction collet.

4. A guide bushing system (100) according to claim 1 or 2, wherein the plurality of guide collets (20) each have at least one push-in collet.

5. A guide bushing system (100) according to claim 1 or 2, wherein the plurality of guide collets (20) each have at least one double-cone collet.

6. A guide bushing system (100) according to claim 1 or 2, wherein the plurality of guide collets (20) each have at least one standard guide collet.

7. A guide bushing system (100) according to claim 2, wherein the plurality of actuators (50) each have at least one retractable component.

8. A guide bushing system (100) according to claim 2 or 7, wherein the plurality of actuators (50) each have at least one push-in component.

9. A guide bushing system (100) according to claim 2 or 7, wherein the plurality of guide collets include at least two guide collets of different designs, selected from the group of guide collets including retractable collets, push-in collets, double-cone collets and standard guide collets.

10. A guide bushing system (100) according to claim 2, characterized in that each actuator (50) among the plurality of actuators (50) is detachably connected to the drive unit (30).

11. A guide bushing system (100) according to any one of claims 1, 2, or 7, wherein each spindle cap (40) has a thread designed to be screwed onto a thread provided in the guide bush (10).

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