Hydraulic control block and hydraulic spindle comprising said control block

Patent metadata

Field	Value
Publication number	US-11788560-B2
Application number	US-202017619413-A
Country	US
Kind code	B2
Filing date	Jun 18, 2020
Priority date	Jun 27, 2019
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

The disclosure relates to a hydraulic control block for controlling a pressure medium supply of a hydraulic cylinder of a hydraulic spindle. The hydraulic control block includes a generic hydraulic switching structure electively configurable in each of a plurality of specific hydraulic switching structures, each of the plurality of specific hydraulic switching structures having a respective hydraulic cylinder with a number of piston areas which differs from a number of piston areas in the respective hydraulic cylinders of each of the other of the plurality of specific hydraulic switching structures.

First claim

The invention claimed is:

1. A hydraulic control block for controlling a pressure medium supply of a hydraulic cylinder of a hydraulic spindle, comprising:
a generic hydraulic switching structure electively configurable in each of a plurality of specific hydraulic switching structures, each of the plurality of specific hydraulic switching structures having a respective hydraulic cylinder with a number of piston areas which differs from a number of piston areas in the respective hydraulic cylinders of each of the other of the plurality of specific hydraulic switching structures;
a first supply interface configured to be electively fluidically connected to at least one of a high-pressure side of a hydraulic machine of the hydraulic spindle and a low-pressure side of the hydraulic machine;
a second supply interface configured to be electively fluidically connected to at least one of the high-pressure side and the low-pressure side of the hydraulic machine;
a first working flow path configured to be electively fluidically connected to the first supply interface;
a second working flow path configured to be electively fluidically connected to the second supply interface;
a third working flow path configured to be electively fluidically connected to the first supply interface in parallel with the first working flow path;
at least one first working port branched off from the first working flow path;
at least one second working port branched off from the second working flow path;
at least one third working port branched off from the third working flow path; and
a valve in the third working flow path configured to electively close and open said third working flow path.

2. The control block as claimed in claim 1 , further comprising:
a releasably arrangeable closure structure configured to electively close at least a portion of a flow path configured in the control block, thereby electively configuring the generic hydraulic switching structure in one of the plurality of specific hydraulic switching structures.

3. The control block as claimed in claim 2 , wherein the closure structure is releasably arrangeable from outside the control block.

4. The control block as claimed in claim 1 , further comprising:
a recirculating flow path configured to electively connect the second working flow path fluidically to the third working flow path.

5. The control block as claimed in claim 1 , wherein the at least one first working port, the at least one second working port, and the at least one third working port are at least one of:
configured to be respectively electively fluidically connected to the piston areas of a respective one of the respective hydraulic cylinders; and
configured to be respectively electively closed.

6. The control block as claimed in claim 1 , further comprising:
a connecting flow path, via which the first working flow path is electively fluidically connected to the third working flow path in a portion of the third working flow path between the valve and the third working port.

7. The control block as claimed in claim 6 , further comprising:
a first receptacle for a closure means in the first working flow path; and
a second receptacle for the closure means in the connecting flow path, wherein the closure means is arranged electively in only one of the first and second receptacles.

8. The control block as claimed in claim 7 , wherein in a first configured one of the plurality of specific hydraulic switching structures:
the at least one third working port is closed;
the closure means is arranged in the first receptacle in the first working flow path; and
the receptacle in the connecting flow path is free.

9. The control block as claimed in claim 8 , wherein in a second configured one of the plurality of specific hydraulic switching structures:
the receptacle in the first working flow path is free; and
the closure means is arranged in the second receptacle.

10. A hydraulic spindle comprising:
a control block comprising:
a generic hydraulic switching structure electively configurable in each of a plurality of specific hydraulic switching structures, each of the plurality of specific hydraulic switching structures having a respective hydraulic cylinder with a number of piston areas which differs from a number of piston areas in the respective hydraulic cylinders of each of the other of the plurality of specific hydraulic switching structures;

a hydraulic machine connected to the control block;
a first supply interface configured to be electively fluidically connected to at least one of a high-pressure side of a hydraulic machine of the spindle and a low-pressure side of the hydraulic machine;
a second supply interface configured to be electively fluidically connected to at least one of the high-pressure side and the low-pressure side of the hydraulic machine;
a first working flow path configured to be electively fluidically connected to the first supply interface;
a second working flow path configured to be electively fluidically connected to the second supply interface;
a third working flow path configured to be electively fluidically connected to the first supply interface in parallel with the first working flow path;
at least one first working port branched off from the first working flow path;
at least one second working port branched off from the second working flow path;
at least one third working port branched off from the third working flow path; and
a valve in the third working flow path configured to electively close and open said third working flow path; and

a first of the respective hydraulic cylinders connected to the control block, wherein, the generic circuit structure is electively configured to a number of piston areas of the first of the respective hydraulic cylinder.

Assignees

• Bosch Gmbh Robert

Inventors

• Rumpel Manuel
• Schwacke Johannes

Classifications

• F15B13/02 Primary

  Fluid distribution or supply devices characterised by their adaptation to the control of servomotors · CPC title

• F15B7/001

  With multiple inputs, e.g. for dual control · CPC title

• F15B21/00

  Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass · CPC title

• F15B21/003 Primary

  Systems with different interchangeable components, e.g. using preassembled kits · CPC title

• F15B13/06

  for use with two or more servomotors · CPC title