Head for the linear dimension checking of mechanical pieces
First Claim
1. A head for the linear dimension checking of mechanical pieces includinga support element (1) that defines a longitudinal geometrical axis, a movable armset with an arm (49), movable with respect to said support element (1), and a feeler (67) coupled to said arm (49), a fulcrum (74) coupled to said arm (49) and said support element (1), for defining a rotation axis and enabling limited rotational displacements of said arm (49) about said rotation axis with respect to said support element (1), and a transducer (105,107), coupled to said arm (49) and said support element (1), for providing signals depending on the position of said arm (49) with respect to said support element (1), characterized in that said fulcrum (74) comprises a deformable element with two blocks (81,83) respectively coupled to said arm (49) and said support element (1) and arranged substantially parallel with respect to each other, the deformable element comprising a first lamina (75) and at least a second lamina (77), each of said first (75) and second (77) lamina being permanently secured to both blocks (81,83) angularly arranged with respect to both said blocks (81,83) and the other of said first (75) and second (77) lamina.
3 Assignments
0 Petitions
Accused Products
Abstract
A gauging or measuring head for the linear dimension checking of mechanical pieces, including a casing (1), an arm (49) carrying a feeler (67) for contacting a piece to be checked, a fulcrum (74), coupled to the casing (1) and the arm (49), for enabling displacements of the arm (49) with respect to the casing (1), a return spring (95) for keeping the feeler (67) in contact with the piece during the checking, a device (98, 100) for retracting the arm (49) and a position transducer providing signals depending on the position of the arm (49) with respect to the casing (1). The fulcrum is made of a deformable element (74) including two coupling blocks (81, 83) and three laminae (75, 77, 79) permanently secured to the blocks (81, 83), and substantially arranged in two different planes of a sheaf of planes.
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Citations
36 Claims
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1. A head for the linear dimension checking of mechanical pieces including
a support element (1) that defines a longitudinal geometrical axis, a movable armset with an arm (49), movable with respect to said support element (1), and a feeler (67) coupled to said arm (49), a fulcrum (74) coupled to said arm (49) and said support element (1), for defining a rotation axis and enabling limited rotational displacements of said arm (49) about said rotation axis with respect to said support element (1), and a transducer (105,107), coupled to said arm (49) and said support element (1), for providing signals depending on the position of said arm (49) with respect to said support element (1), characterized in that said fulcrum (74) comprises a deformable element with two blocks (81,83) respectively coupled to said arm (49) and said support element (1) and arranged substantially parallel with respect to each other, the deformable element comprising a first lamina (75) and at least a second lamina (77), each of said first (75) and second (77) lamina being permanently secured to both blocks (81,83) angularly arranged with respect to both said blocks (81,83) and the other of said first (75) and second (77) lamina.
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23. A head for the linear dimension checking of mechanical pieces including
a support element (1) that defines a longitudinal geometrical axis, a movable armset with an arm (49), movable with respect to said support element (1), and a feeler (67) coupled to said arm (49), a fulcrum (74) coupled to said arm (49) and said support element (1), for enabling limited rotational displacements of said arm (49) with respect to said support element (1), a retraction device (121) coupled to said support element (1) and adapted to cooperate with the movable arm (49) for bringing the arm (49) to a definite inoperative position, and a transducer (105,107), coupled to said arm (49) and said support element (1), for providing signals depending on the position of said arm (49) with respect to said support element (1), characterized in that said retraction device comprises a bellows (121) having an end fixed to the support element (1) and an opposite free end adapted to cooperate with the movable arm (49) to urge it to said definite inoperative position.
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32. A process for manufacturing a fulcrum (74) to be utilized in a head for the dimension checking, comprising the following steps:
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providing at least two laminae (75,77) made of a first material, obtaining two blocks (81,83) made of a second material, and permanently securing said laminae (75,77) to said blocks (81,83) for achieving a single deformable element, wherein the laminae (75,77) are angularly arranged with respect to each other and to said blocks (81,83), and the blocks (81,83) are arranged substantially parallel with respect to each other. - View Dependent Claims (33, 34, 35, 36)
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Specification