Pressure welding device and pressure welding method

Patent metadata

Field	Value
Publication number	US-10646953-B2
Application number	US-201515526156-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	Nov 12, 2014
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A pressure welding method and a pressure welding device ( 1 ) includes a plasticizing unit ( 7 ), a compression unit ( 8 ), a machine head ( 13 ) that includes a spindle ( 54 ) and a component holder ( 34 ). The pressure welding device ( 1 ) further includes a spindle drive ( 56 ) and an actuation mechanism ( 41 ) that includes an actuation drive ( 65 ) for the component holder ( 34 ). The actuation drive ( 65 ) is placed between the spindle drive ( 56 ) and the spindle ( 54 ) within a drive train ( 57 ).

First claim

The invention claimed is:

1. A pressure welding device with a plasticization device comprising an upsetting device, the pressure welding device comprising:
a machine head with a spindle;
a component mount comprising a clamping device;
a spindle drive; and
an actuating device with an actuating drive for actuating the component mount, wherein the actuating drive is arranged in a drive train between the spindle drive and the spindle, the actuating drive having a rotatable drive housing, which is rotatingly connected to a drive shaft of the spindle drive and to the spindle and transmits drive torque, the actuating drive being configured as an electric or hydraulic drive, the actuating device having a rotary feed device for feeding operating materials comprising hydraulic fluid or electric current to the actuating drive, rotating with the spindle, from outside, for co-rotating the actuating drive, the rotatable drive housing being located between the drive shaft of the spindle drive on one side and the spindle on another side, wherein an operating position of the clamping device of the component mount is detected by a measuring device for measuring an actuating stroke or an adjusting stroke of the actuating device.

2. A pressure welding device in accordance with claim 1 , wherein the spindle drive has a drive motor arranged essentially flush with a machine axis and with a spindle axis.

3. A pressure welding device in accordance with claim 1 , wherein the actuating device further comprises an actuating element for the component mount, the actuating element being connected to the actuating drive, and being arranged in an interior space of the spindle and the spindle is a hollow spindle.

4. A pressure welding device in accordance with claim 3 , wherein the actuating element is functionally connected to a clamping device of the component mount.

5. A pressure welding device in accordance with claim 3 , wherein an output element of the actuating drive is arranged at least partly in the interior space of the hollow spindle.

6. A pressure welding device in accordance with claim 1 , wherein an output element of the actuating drive is configured as a one-step or multistep piston arrangement.

7. A pressure welding device in accordance with claim 1 , wherein the rotary feed device has a stationary feed housing and a ring distributor as well as an internal line, which is connected to the actuating drive and is arranged at a drive shaft or at the spindle.

8. A pressure welding device in accordance with claim 1 , wherein the rotary feed device has an external line and a stationary connection head.

9. A pressure welding device in accordance with claim 1 , further comprising an upsetting head wherein the upsetting head and the machine head are movable relative to one another along a machine axis, wherein a component mount is mounted between the upsetting head and the machine head floatingly on a machine frame, and the pressure welding device has an adjusting device for adaptation to different component dimensions including component lengths.

10. A pressure welding device in accordance with claim 1 , wherein the pressure welding device is configured as a friction welding device, wherein the plasticization device has a friction device.

11. A pressure welding device in accordance with claim 1 , wherein the pressure welding device is configured as a welding device with a magnetically moved arc, wherein the plasticization device has an arc device.

12. A method for pressure welding with a pressure welding device, which has a plasticization device and an upsetting device as well as a machine head with a spindle and with a component mount, as well as a spindle drive and an actuating device with an actuating drive for the component mount, the method comprising:
arranging the actuating drive in a drive train between the spindle drive and the spindle; and
actuating the component mount by the actuating drive arranged in the drive train between the spindle drive and the spindle, the actuating drive having a rotatable drive housing, which is rotatingly connected to a drive shaft of the spindle drive and to the spindle and transmits drive torque, the actuating drive being configured as an electric or hydraulic drive, wherein operating materials are fed to the actuating drive rotating with the spindle from outside by a rotary feed device arranged between the spindle drive and the machine head, the rotatable drive housing being located between the drive shaft of the spindle drive on one side and the spindle on another side, wherein an operating position of a clamping device of the component mount is detected by a measuring device for measuring an actuating stroke or an adjusting stroke of the actuating device.

13. A method in accordance with claim 12 , wherein the component mount is actuated by the actuating drive arranged at an axially spaced location from the component mount.

14. A method in accordance with claim 12 , wherein the actuating device is controlled or regulated by the measuring device for measuring and actuating or adjusting stroke.

15. A method in accordance with claim 12 , wherein the components to be welded together are plasticized on front edges facing each other by friction or by a rotatingly moved arc.

Assignees

• Kuka Deutschland Gmbh

Inventors

• Büchler Michael
• Fischer Otmar

Classifications

• B23K9/08 Primary

  Arrangements or circuits for magnetic control of the arc · CPC title

• B23K20/125

  Rotary tool drive mechanism · CPC title

• B23B31/20

  Longitudinally-split sleeves, e.g. collet chucks · CPC title

• B23K20/12 Primary

  the heat being generated by friction; Friction welding · CPC title

• B23K20/126

  Workpiece support, i.e. backing or clamping · CPC title