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Apparatus for checking the dimensional and geometric features of pins

A technology of geometric features and equipment, applied in metal processing equipment, grinding/polishing equipment, parts of grinding machine tools, etc.

Inactive Publication Date: 2005-08-24
MARPOSS SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The method according to the International Patent Application Publication No. WO-A-0166306 achieves excellent results despite unavoidable errors, which are caused by various factors depending on the theoretical properties of the mechanical parts involved. brought about by this treatment

Method used

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  • Apparatus for checking the dimensional and geometric features of pins
  • Apparatus for checking the dimensional and geometric features of pins
  • Apparatus for checking the dimensional and geometric features of pins

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Embodiment Construction

[0018] refer to image 3 , 4 and 5, a grinding wheel slide 1 of a computer numerically controlled ("CNC") grinding machine for grinding crankshafts supports an arbor 2 defining an axis 3 of rotation of a grinding wheel 4. The grinding wheel slide 1 carries a support device with a fixed support 5 and a connecting device comprising several connecting parts. More specifically, the support 5 supports the first rotary connection 9 via the first rotary pin 6 . The pin 6 defines a first axis of rotation 7 parallel to the axis of rotation 3 of the grinding wheel 4 and to the geometrical axis of rotation 8 of the crankshaft to be inspected. The connecting part 9 then supports the intermediate part 12 via a second swivel pin 10 , wherein the second swivel pin 10 defines a second swivel axis 11 parallel to the shafts 3 and 8 . A third rotating pin 13 is stationary relative to the support 5 and defines a third axis of rotation 14 parallel to the shafts 3 , 8 and 11 , supporting a first b...

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Abstract

An apparatus for checking diameter and roundness of crankpins ( 42 ) in the course of the machining in a grinding machine, includes a Vee-shaped reference device ( 70 ), a gauging device with a movable feeler ( 67 ) associated with the Vee-shaped device ( 70 ) and a movable support ( 5, 40, 41, 60 ) device for the Vee-shaped reference device. The movable support device is coupled ( 5 ) to the grinding-wheel slide ( 1 ) and includes, in working condition, two parallelogram structures ( 40, 41 ) in series enabling substantially translation displacements of the Vee-shaped device ( 70 ). One of the two parallelogram structures ( 40, 41 ) includes an axially movable stem ( 32 ), with end surfaces ( 38, 39 ) that, in working condition, contact the external surface of bearings ( 15, 19 ), thereby setting the distance separating two of the four vertexes ( 11, 7, 14, 18 ) of the parallelogram ( 40 ), whereas when the apparatus is in the rest position, at least one of said end surfaces ( 38, 39 ) is separated from the surface of the associated bearing. During the checking, the direction of the feeler ( 67 ) displacements remains substantially unaltered.

Description

technical field [0001] The invention relates to a device for checking the dimensions and geometrical characteristics of a pin rotating about a geometric axis of rotation, with a V-shaped reference device, a gauging device, a support device, and a control device (controldevice); wherein the V-shaped reference device defines a bracket and a reference surface suitable for cooperating with the pin to be inspected; the measuring device is connected to the V-shaped reference device, and the measuring device includes a The probe (feeler) that is in contact with the surface of the V-shaped reference device and is suitable for linear movement along the measurement direction between the bracket of the V-shaped reference device and the reference surface; the support device is used to support the V-shaped reference device and the measurement device. the device has a stationary support element (stationary support element) and a coupling mechanism (coupling mechanism) which is capable of su...

Claims

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Application Information

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IPC IPC(8): G01B5/02B24B5/42B24B49/02B24B49/04G01B5/20G01B5/28
CPCB24B49/045B24B5/42B24B49/04
Inventor F·达尼埃利M·古利内利G·索阿丁
Owner MARPOSS SPA
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