JPS6119533A - Workpiece feeder - Google Patents

Abstract

PURPOSE:In a workpiece feeder for a numerical-controlled lathe or the like, to prevent the position of a workpiece from deviating while it is transferred and facilitate the positioning of the workpiece in the circumferential direction thereof, by radially disposing a plurality of movable and fixable setting bolts at intervals in the circumferential direction of the workpiece. CONSTITUTION:Setting bolts 14a, 14b, which are fixed on guides 15 and provided with soft members 16 at the tips of the bolts, are disposed in grooves (not shown in the drawing) provided on a workpiece feeder plate 12, so that the bolts coincide with the set positions of workpieces 13a, 13b and can be moved in the radial directions of the woirkpieces and fixed by screws not shown in the drawing. As a result, the workpieces 13a, 13b are surely fixed on the workpiece feeder plate 12 so that the positions of the workpieces do not deviate during their transfer. This constitution prevents the workpieces from being damaged and facilitates their positioning in the circumferential directions of the workpieces.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a work feeder for loading or unloading an article generally called a workpiece into or out of a processing machine such as an NC lathe. [This relates to a work feeder with improved means for positioning the work to be pulled.]

[Technical background of the invention and its problems] As shown in FIG. 3, a conventional work feeder used in an NO lathe etc. has a plurality of concentric circles 2 with different radii drawn on a feeder plate 1, and 3 was positioned based on this concentric circle 2.

However, in such a work feeder, the work 3 on the feeder plate 1 is not fixed, so FMS (facto machine
This system is not suitable for a system in which a workpiece 3 that has been set up at a set-up station such as a system is automatically transferred to a machine tool. That is, in this type of system, it is necessary to transport the feeder plate 1 with the workpiece 3 positioned at the setup station to the machine tool, but unlike the conventional workpiece feeder, the workpiece 3 is simply transferred to the feeder plate h i If the workpiece 3 is placed on top of the workpiece but not fixed, the position of the workpiece 3 may shift due to vibration during transportation, and the machine tool may not be able to process the workpiece 3.

For example, when using an NG lathe with a workpiece supply arm, conventionally the workpiece 3 is installed on the feeder plate 1 at the setup station. The feeder plate 1 is placed in the feeder plate 1, and the operator positions the workpieces 3 one by one there, resulting in a problem of poor work efficiency.

Furthermore, in the conventional work feeder, although it is possible to center the work 3 using the concentric circles 2, there is a problem in that positioning is difficult because there is no guideline in the circumferential direction.

[Object of the Invention] The present invention was proposed in order to solve the problems of the prior art as described above, and its purpose is to prevent the workpiece from being displaced even when the feeder plate is conveyed.
Moreover, it is an object of the present invention to provide a workpiece feeder that can relatively easily perform positioning in the circumferential direction without damaging the workpiece.

[Summary of the Invention] The work feeder of the present invention includes a plurality of set bolts arranged radially along the circumferential direction of the work to be positioned so as to be slidable and fixable in the radial direction of the work. By pressing the workpieces against these cellars 1 to bolts by J:τ, it is possible to prevent the workpieces positioned on the feeder plate from shifting during transportation.

In addition, the present invention provides a stopper on the feeder plate and a portion that engages with the stopper on the outer peripheral surface of the workpiece, thereby preventing the workpiece from rotating and positioning it in the circumferential direction. It is.

[Embodiment of the Invention] An embodiment of the present invention will be specifically described below with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 11 denotes the base of the workpiece feeder, and a feeder plate 12 is removably disposed on the base 11. In this case, a turntable (not shown) is provided in a part of the base 11 of the work feeder, and the feeder plate 12 is placed on top of this turntable.
It rotates freely, allowing workpiece setup work to be done from any direction.

Each workpiece 13a is provided on the surface of this feeder plate 12.
, 13b, for example, three cellar bolts 14a, 14b are provided. Each set bolt is fixed on a guide 15, as shown in Fig. 2, and a soft material such as synthetic resin or rubber is attached to the tip.
6 is provided. This soft material 16 is attached to the tip of an lfJ i material 17 incorporated into the set bolt body.

Each set bolt 14a, 14b is connected to each workpiece 13a, 1
For example, in the case of a cylindrical workpiece 13a, the soft material 16 at the tip faces the center of the workpiece 13a, and the ring-shaped workpiece 13
In b, the soft material 16 at the tip of each set bolt 14b is arranged radially so as to come into contact with the inner circumferential surface of the workpiece 13b. Both of the set bolts 14a and 14b have their bottom guides 15 mounted on the feeder plate 12.
By inserting the pipe 7j into a groove (not shown), it can be moved in the radial direction of each workpiece. Also, although not shown, each set bolt is provided with a set screw for fixing the workpiece at a predetermined position in the radial direction.

Furthermore, the feeder plate 12 includes set poles 1 to 4a.
, 4b, a stopper 18 that is movable in the radial direction of the workpiece and can be fixed at a predetermined position is provided, and a bottle-shaped engaging portion 19 that engages with this stopper 18 is provided on the workpieces 13a and 13b side. is provided.

In the work feeder of this embodiment having such a configuration, each of the works 13a and 13b is arranged as shown in FIG.
It is set while being held down by a plurality of set bolts 14a, 14b arranged radially at the set position. Therefore, even if vibration is applied when the feeder plate 12 is removed from the base 1 of the workpiece feeder and transported,
Workpieces 13a and 13b will no longer be misaligned.

Moreover, since the fixing position of each set bolt 13a, 13b can be adjusted in the radial direction of each workpiece, it is possible to easily position workpieces of different diameters. In this case, a soft material 16 is provided at the tip of the bolt to each cella 1, and this soft material 16 is attached to the buffer material 17, so there is no problem such as the set bolt damaging the workpiece. Further, a stopper 18 is provided at the set position of the workpiece, and this engages with the engaging portion 19 of the workpiece, so that positioning of the wire in the circumferential direction is also easy.

Note that the present invention is not limited to the illustrated embodiment, and can also be used as a work feeder for works other than cylindrical. Further, a stopper provided on the feeder plate is not necessarily required, and the present invention can be carried out even if the set bolt also serves as a stopper or without a stopper at all.

[Effects of the Invention] As described above, according to the present invention, a simple means is provided in which a plurality of set bolts are provided on the feeder plate 1 radially along the radial direction of the workpiece so that the fixing position thereof can be adjusted. This has the effect of providing a work feeder in which workpiece positioning is easy and the feeder plate does not shift when being transported. Therefore, positioning work that was conventionally done near the processing machine can now be performed at a separate setup station, making it possible to perform setup regardless of the processing machine's working speed, improving work efficiency. Can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the work feeder of the present invention, Fig. 2 is a sectional view of a set bolt used in the embodiment of Fig. 1, and Fig. 3 is a feeder plate in a conventional work feeder. It is a perspective view showing an example. DESCRIPTION OF SYMBOLS 11... Base of work feeder, 12... Feeder plate, 13a, 13b... Work, 14a, 14
b...Set bolt, 15...Guide, 16...
Soft material, 17...buffer material, 18...stopper, one...engaging portion. 7317 Representative Patent Attorney Kensuke Norichika (and 1 other person) Figure 1 Figure 2

Claims (3)

[Claims] (1) A plurality of set bolts are arranged radially along the circumferential direction of the workpiece to be positioned so as to be slidable and fixed in the radial direction of the workpiece, and the workpiece is pressed by these set bolts. A work feeder characterized by positioning a work on a feeder plate. (2) The work feeder according to claim 1, wherein the feeder plate is removable from the base of the work feeder. (3) The work feeder according to claim 1, wherein the feeder plate is provided with a stopper on its surface to prevent rotation of the work in the circumferential direction.