Flexible CNC-multiposition measuring installation

• US 4,953,306 A
• Filed: 04/20/1988
• Issued: 09/04/1990
• Est. Priority Date: 05/05/1987
• Status: Expired due to Fees

• Current Assignee: Mauser-Werke Oberndorf GmbH
• Original Assignee: Mauser-Werke Oberndorf GmbH
• Inventors: Mordhorst, Hans-Jurgen, Weckenmann, Albert
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Scanlon, Patrick R.
• Application Number:
  US07/183,828
• Time in Patent Office: 867 Days
• Field of Search: 33/1 M, 33/503, 33/504, 33/548, 33/551, 33/552, 33/557, 33/560
• US Class Current: 33/503
• CPC Class Codes: G01B 21/04 by measuring coordinates of points
• CPC Class Codes: G01B 5/008 using coordinate measuring machines

Abstract

A flexible CNC-multiposition measuring installation, which represents a combination of components from the coordinate measuring technique with elements from the multiposition measuring technique and the counter testing technique, which are joinable with each other in a common measuring installation. Such CNC-multiposition measuring installation are, in particular, adapted for the integration thereof into a manufacturing or production process.

Claims

1. A multiposition measuring installation, comprising:

a framework;

a worktable located in said framework to support a workpiece;

a plurality of measuring devices to measure a multitude of parameters of the workpiece and to generate signals indicating values for said measured parameters;

support means connecting each of said measuring devices to the framework and supporting each of the measuring devices for movement therealong, each of said support means supporting each of the measuring devices for movement along the framework in two mutually orthogonal directions independent of all of the other of the measuring devices;

each of said measuring devices including a body and a sensor to sense a parameter of the work piece, the sensor of each measuring device being connected to the body thereof for movement in a direction orthogonal to the two directions in which the support means supports the measuring device for movement; and

evaluation means connected to the measuring devices to receive said signals therefrom and to evaluate said signals according to a predetermined program, and to compare at least selected signals to corresponding reference values.

2. A multiposition measuring installation according to claim 1, wherein:

the support means supports each of the measuring devices for movement along the framework independently of all of the other of said measuring devices; and

the installation further includes control means connected to the measuring devices to preclude any of the measuring devices from obstructing movement of any of the other measuring devices.

3. A multiposition measuring installation according to claim 2, wherein:

the framework includes a plurality of vertical support columns;

the work table is selected from the group consisting of a turn table, a switching plate and a stationary measuring table;

the support means includes at least one bridge supported by the framework for movement thereacross, said bridge supporting one of the measuring devices;

each of the measuring devices includes a sensor operatively mounted on the measuring device to sense a parameter of the workpiece; and

the installation further comprises a primary computer, said primary computer including the evaluation means.

4. A multiposition measuring installation as claimed in claim 3, wherein each of said measuring devices is movable on two parallel horizontal displacement axles intermediate to adjoining columns, said device having a horizontal extension arm movable above a vertical connecting support along a vertical displacement axle and movable at right angles to the horizontal and vertical displacement axles, which receives the measuring sensor for the scanning of the measured object.

5. A multiposition measuring installation as claimed in claim 3, wherein said at least one bridge supports one of the measuring devices above said columns, said measuring device having a vertical spindle sleeve and is movable in conjunction with the bridge along mutually right-angled horizontal displacement axles, and which receives said respective measuring sensor for scanning along a measured object.

6. A multiposition measuring installation according to claim 3, further including:

a measuring device interface means connected to the primary computer and to the measuring devices to transmit data between said measuring devices and the primary computer;

a memory unit to store data, and storing said predetermined program and said reference values;

a storage interface means connected to the primary computer and to the memory unit to transmit data therebetween; and

a periphery bus system connected to the primary computer and including a terminal, a printer, a plotter, and a graphics art tray.

7. A multiposition measuring installation according to claim 3, wherein:

the plurality of vertical support columns includes four columns spaced apart and defining a rectangle extending around the work table;

the work table includes four sides;

the plurality of measuring devices includes five measuring devices;

a respective one of the measuring devices is located on each of the four sides of the work table, and the fifth measuring device is located above the work table;

the installation forms respective side installing and open spaces on each of the four sides of the work table to facilitate movement and installation of the measuring devices on said four sides of the work table; and

the installation further forms a top installing space above said four columns to facilitate movement and installation of said bridge.

8. A multiposition measuring installation according to claim 1, wherein movement of each of the measuring devices along the framework is CNC-controlled.

9. A multiposition measuring installation according to claim 1, wherein:

the framework includes

(i) first, second third and four the vertical columns,

(ii) first, second third and fourth horizontal bottom beams connected to said first, second, third and fourth vertical columns and forming a bottom rectangle; and

(iii) first, second, third and fourth horizontal top beams connected to said first, second, third and fourth horizontal columns and forming a top rectangle;

the support means includes

(i) a first vertical beam extending between and supported by the first bottom beam and the first top beam for sliding movement therealong in a first direction,

(ii) a second vertical beam extending between and supported by the second bottom beam and the second top beam for sliding movement therealong in a second direction,

(iii) a third vertical beam extending betweeen and supported by the third bottom beam and the third top beam for sliding movement therealong in the first direction,

(iv) a fourth vertical beam extending between and supported by the fourth bottom beam and the fourth top beam for sliding movement therealong in the second direction, and

(v) a bridge extending between and supported by the first and third top beams for sliding movement therealong in the first direction;

the plurality of measuring devices includes first, second, third, fourth and fifth measuring devices;

the first measuring device is mounted on the first vertical beam for vertical sliding movement therealong in a third direction;

the second measuring device is mounted on the second vertical beam for vertical sliding movement therealong in the third direction;

the third measuring device is mounted on the third vertical beam for vertical sliding movement therealong in the third direction;

the fourth measuring device is mounted on the fourth vertical beam for vertical sliding movement therealong in the third direction;

the fifth measuring device is connected to the bridge for vertical sliding movement therealong in the second direction.

10. A multiposition measuring installation according to claim 9, wherein:

each of the measuring devices includes a body, a sensor to sense a parameter to the workpiece, and a spindle connecting the sensor to the body and supporting the sensor for movement toward and away from the body of the measuring device;

the spindle of the first measuring device supports the sensor thereof for movement in said second direction;

the spindle of the second measuring device supports the sensor thereof for movement in said first direction;

the spindle of the third measuring device supports the sensor thereof for movement in said second direction;

the spindle of the fourth measuring device supports the sensor thereof for movement in said first direction; and

the spindle of the fifth measuring device supports the sensor thereof for movement in said third direction.