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Locking device for workpiece suitable for machining on machine tool

A technology for locking devices and workpieces, applied in positioning devices, metal processing mechanical parts, metal processing equipment, etc., can solve the problems of reducing the useful diameter of pins, reliability and life limitations, and high manufacturing costs.

Pending Publication Date: 2022-07-29
OFFICINA MECCANICA LOMBARDA SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Furthermore, the clamping mechanism consists of many mechanical parts, some of which interact by sliding relative to each other, leading to high manufacturing costs and limitations in reliability and lifetime due to the wear and tear these mechanical parts are subjected to
[0009] Last but not least, the dimensions of the clamping mechanisms on the one hand make it necessary to increase the diameter of the hollow cylindrical support, but present disadvantages in terms of manufacturing costs, weight and hindrance, while on the other hand they reduce the pin's Useful diameter, and thus reduced pin diameter and strength

Method used

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  • Locking device for workpiece suitable for machining on machine tool
  • Locking device for workpiece suitable for machining on machine tool
  • Locking device for workpiece suitable for machining on machine tool

Examples

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Embodiment Construction

[0027] With reference to the drawings, reference numeral 10 generally designates a locking device for a workpiece obtained, suitable for machining on machine tools and machining centers.

[0028] Specifically, first refer to Figure 13 , a series of locking devices 10 (eg, four locking devices) can be used to position and lock the universal workpiece W in place on a platform P that is mounted in the work area (not shown) of the machine tool and that is conventionally A grid with threaded openings O is provided.

[0029] Each of the locking devices 10 is adapted to receive and retain a pin 12 secured to the workpiece W. In a manner conventional per se, the pin 12 may be hollow and fixed to the workpiece W by a first screw S1 inserted in the pin 12 and screwed into a threaded hole H previously made in the workpiece W.

[0030] The locking device 10 includes a support 14 ( Figure 5 , Figure 11 and Figure 13 ), the support has an axial cavity 16 for receiving the pin 12 . ...

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Abstract

The present application relates to a locking device for a workpiece adapted to be machined on a machine tool, having: a support (14) extending about an axis (A), having an axial cavity (16) adapted to receive a pin (12) fixed to the workpiece (W); and a retaining device for axially retaining the pin. The retaining device comprises two jaws having a curved profile and opposing recesses, which are inserted such that they are respectively slidable in mutually opposing slots of the support to transition between an open position in which the jaws do not interfere with the insertion / removal of the pin and a closed position in which the jaws do not interfere with the insertion / removal of the pin. In the closed position, the jaws engage in opposite positions with the circumferential grooves (18) of the pin that has been inserted into the support. The jaws are functionally interconnected in an open / close relationship by an actuation screw (28) positioned to not interfere with the pin and having a threaded end that engages a corresponding threaded bore provided in the jaw.

Description

technical field [0001] The present invention relates to a locking device for workpieces suitable for machining on machine tools. Background technique [0002] As is known, workpieces for machining on a machine tool can be fixed by means of a set of locking means on a platform, which in turn is mounted in the working area of ​​the machine tool. [0003] In particular, each of the locking means may comprise a hollow cylindrical support fixed to the platform at right angles to the platform and provided with retaining means for receiving and shafting Hold the pin fixed to the workpiece towards the ground. [0004] In some known systems, the holding device may comprise a triplet of inserts which may be radially in the hollow cylindrical support between the open and closed positions on command of the irreversible clamping mechanism Sliding, in the open position these inserts release the cavity of the hollow cylindrical support, allowing insertion and removal of the pins, and in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/06B23Q1/0072B23B31/1075Y10T279/17675B23B31/16275B23B2260/056
Inventor 安德烈亚·罗兰迪
Owner OFFICINA MECCANICA LOMBARDA SRL
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