JPH0357401Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is used in the technical field of machine tools, and particularly relates to a feeding device for feeding a workpiece.

(Prior art) At the processing location of a machine tool, especially when the workpiece is an annular body with a small diameter, a loading chute is provided to allow the workpiece to slide down one by one. 2. Description of the Related Art Generally used is a feeding device in which a receiving member for a workpiece is swingable back and forth, and a loading arm is used to swing the receiving member forward to take out the workpiece.

For example, in the loading device described in Japanese Utility Model Publication No. 46-17268, a workpiece is held between the rear wall of the lower part of the chute and a receiving member (stopper) biased by a leaf spring, and the workpiece is Although the object is taken out by a loading arm, this device is suitable for feeding workpieces with a fixed diameter.

(Problems that the invention attempts to solve) This invention attempts to make it possible to supply multiple types of workpieces with different diameters, and aims to solve the following problems that occur in this case. shall be.

In other words, in order to make the feeding device versatile,
The receiving member is V-shaped so that it can receive workpieces of various diameters, and the position of the rear wall of the loading chute (the back wall on which the workpiece rolls or slides) can be changed from front to back. As adjustable to
It is conceivable to allow workpieces of various diameters to fall onto the center of the receiving member. In this configuration, in order to prevent the rear part of the receiving member from interfering with the lower end of the rear wall of the loading chute when the loading arm swings the receiving member forward to take out the workpiece, this It is necessary to provide a relatively large gap between the receiving member and the rear wall of the loading chute in consideration of the swinging of the receiving member. However, if such a gap is provided, when a workpiece with a small diameter is to be fed, there is a risk that the workpiece will jump out from this gap to the back of the receiving member.

(Means for Solving the Problem) The present invention provides a receiving member for the workpiece at the lower part of the loading chute so as to be swingable back and forth, and the receiving member is swingable forward by a loading arm. In the workpiece supply device, the rear wall of the loading chute is provided so as to be adjustable in its longitudinal position, and the lower part of the rear wall of the loading chute and the receiving member A slit portion that can be passed through the rear portion of the slit portion is provided at the rear portion of the slit portion.

(Function) In the workpiece supply device described above, workpieces having different diameters can be dropped onto the receiving member by adjusting the position of the rear wall of the loading chute. Since the lower part of the rear wall of the loading chute and the rear part of the receiving member can pass through each other through the slit portion, even if they are brought close to each other or engaged, there is no problem with the swinging of the receiving member. Even if the falling workpiece is of small diameter, the lower part of the rear wall of the loading chute should be positioned behind it (the back of the back wall should prevent the workpiece from jumping out). Objects can be received by the receiving member.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In addition, it should be understood that the right side in FIG. 1 is referred to as the front, and the left side is referred to as the rear.

In a workpiece feeding apparatus 1 whose overall configuration is shown in FIG. 1, a loading chute 2 is provided to be inclined downward in the front, and its lower part is curved and formed downward. Also, the loading chute 2 is located on the rear wall 2.
a and a side wall 2c, the rear wall 2a has an elongated hole 5a in the front-rear direction.
A longitudinal adjustment plate 5 whose longitudinal position is adjusted by
Therefore, the rear wall 2a is provided so that its front and rear mounting positions can be adjusted. Further, between the lower part of the rear wall 2a and the rear part of the receiving member 3, a lattice-shaped lower slit part 2b and a rear slit part 3a are provided so that they can pass through each other (second
(see figure).

In accordance with the inclination of the loading chute 2, an upper front guide plate 6 is provided at the upper front part of the loading chute 2. The front upper guide plate 6 has a vertical elongated hole 6a.
Accordingly, the vertical mounting position thereof is configured to be variable. Further, in front of the loading chute 2, a front guide plate 7 is provided vertically. The front guide plate 7 has a horizontal elongated hole 7a so that its attachment position in the front and back direction can be changed.

The receiving member 3 is formed in a V-shape, is rotatably supported by a shaft 3b, is biased to rotate rearward by a leaf spring 3c, and is further rotated rearward by a stopper 3d. The rotation position is regulated. Further, the receiving member 3 is configured such that its mounting position in the vertical direction can be adjusted by means of a vertical elongated hole 3e.

The loading arm 4 for transferring the workpiece W on the receiving member 3 to the processing position of the stone 8 (position W' in the figure) is moved from a horizontal position (see the chain line in Figure 1) to a vertical position around the axis 4a. It can be rotated up to the axis 4.
It is configured to be able to move slightly left and right in the axial direction of a.
A holding shaft 4b that can be inserted into the workpiece W is provided at the tip.

On the other hand, a workpiece holder 10 is provided at the processing position of the stone 8, as shown in FIG. 3, and this workpiece holder 10 is equipped with an electromagnetic coil 10a. As described above, the workpiece W at the processing position of the stone 8 is attached to the coil 1 of the workpiece holder 10.
It is held by an electromagnet by 0a. In addition, an outshoot 11 is provided below the intermediate portion of the guide 9.
The cleaning nozzle 12 faces the receiving member 3 from diagonally above.

Therefore, in the above-mentioned feeding device 1, by adjusting the vertical position of the front upper guide plate 6 and the front and rear positions of the rear wall 2a and the front guide plate 7 in accordance with the diameter of the workpiece W, the workpiece can be This allows W to descend smoothly down the loading chute 2 and to be received above the central portion of the receiving member 3. In addition, the height of the receiving member 3 is adjusted so that when the workpiece W is placed on the receiving member 3, the center of the workpiece W and the lower end of the rear wall 2a are on the same horizontal line. Become. The workpiece W received by the receiving member 3 is transferred to the receiving member 3 by the loading arm 4 moving in the axial direction in a vertical position, its holding shaft 4b being inserted, and the loading arm 4 rotating. At this time, the receiving member 3 swings forward against the bias of the leaf spring 3c.

Therefore, the receiving member 3 can have a large V-shape so that it can receive a relatively large diameter workpiece W, but when receiving a small diameter workpiece W, the loading shield is In order to make the lower end of the rear wall 2a of the ute 2 at the same height as the center of the small-diameter workpiece W, the receiving member 3 is provided so as to be shifted upward. In that case, the lower end of the rear wall 2a will enter the inside of the receiving member 3, but the lower part of the rear wall 2a and the rear part of the receiving member 3 can pass through each other through the slits 2b and 3a. ,
There is no problem in forward swinging of the receiving member 3 when taking out the workpiece W. And this small diameter workpiece W
Since the lower end of the rear wall 2a of the loading chute 2 reaches its center position while being received by the receiving member 3, it is stably supported without falling backward from the receiving member 3. Further, in this receiving member 3, the workpiece W is cleaned by supplying cleaning liquid from the cleaning nozzle 12, and the cleaning liquid is smoothly discharged from the slit portion 3a of the receiving member 3.

The workpiece W taken out to the processing position by the loading arm 4 is rotated while being held by the workpiece holder 10 with the holding shaft 4b of the loading arm 4 inserted. Processed in After this processing, the workpiece W is lifted up to the intermediate height of the guide 9 by the upward rotation of the loading arm 4, and the holding shaft 4b is moved back in the axial direction by the loading arm 4.
The hold is released and the object is dropped into the outshoot 11.

(Effects of the invention) The workpiece feeding device of the present invention has the above-described configuration, and allows the back wall of the loading chute to be adjusted in its longitudinal position, and also allows the lower part of the loading chute and the rear part of the receiving member to be mutually connected. Since it is provided with a slit section that can be passed through, it is possible to feed large and small workpieces with different diameters to the center of the receiving member, and also to allow the rear wall of the loading chute to intersect with the swing locus of the receiving member. Even if the receiving member is provided in this position, the receiving member can be rotated forward by the slit portion.
Therefore, even a small-diameter workpiece can be received by the receiving member with the rear wall of the loading chute positioned behind the workpiece, and can be prevented from jumping out rearward from the receiving member.

[Brief explanation of the drawing]

The drawings all illustrate embodiments of the present invention, and FIG. 1 is a side view of the workpiece supply device, FIG. 2 is a back view showing the rear wall of the loading chute and the slit portion of the receiving member, and FIG. 3 is a side view of the workpiece supply device. FIG. 2 is a rear view of the same device with some parts omitted. DESCRIPTION OF SYMBOLS 1... Supply device, 2... Loading chute, 2a... Rear wall, 2b, 3a... Slit part,
3...Receiving member, 4...Loading arm, 5...
...Back and forth adjustment plate, 5a...Elongated hole, W...Workpiece.

Claims (1)

[Scope of utility model registration request] A receiving member for the workpiece is provided at the lower part of the loading chute so as to be able to swing back and forth, and the receiving member is swung forward by a loading arm to take out the workpiece, A rear wall of the loading chute is provided so as to be adjustable in position back and forth, and a slit portion that can pass through each other is provided at a lower portion of the rear wall of the loading chute and a rear portion of the receiving member. A feeder for a workpiece, characterized in that: