JPH0252811A - Method for automatically turning round rectangular parallelopiped work piece and its device - Google Patents

Abstract

PURPOSE:To automate the series of work processes as well as to improve both safety and efficiency by lifting a work piece with a table elevated, contra- rotating by piece by the rotation of a contra-rotating frame, and thereby resting it on a trestle with the table lowered. CONSTITUTION:In order to contra-rotate a work piece so as to let its unfinished surface be faced upward, a contra-rotating frame A 22 is raised by 90 deg. by a support actuator 22 so as to be moved to a position where it is brought in contact with the work piece. Then, a lifting table 14 is elevated with a lifting actuator 19 operated so that a contra-rotating actuator 20 is actuated. When a contra-rotating frame B 23 fixed on a contra-rotating shaft 25 is pushed up, an actuator arm 26 is rotated similarily, both of the contra-rotating frame A 22 and the frame B 23 are resultantly rotated by 90 deg. while they are kept at a right angle, which situation permits the work piece to be rotated by 90 deg. as a matter of course. Then, the work piece is lowered onto a trestle (b) with the lifting table 14 lowered so as to let it be forwarded to the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method and apparatus for transporting and reversing rectangular parallelepipeds in machine tools and other general industrial machines that handle rectangular parallelepipeds.

(Prior art) In the past, hoists and chain blocks were used to handle the lifting, but sometimes special lifting and reversing equipment was used for lifting. One or two people are always kicking.

Recently, machines have been created that lift and invert the sides of a rectangular parallelepiped, and in this case it is automated. However, both of the above methods are batch processes in which several workpieces are lined up and processed within the machinable range. , there is a limit to improving the operating rate of the machine, and it is necessary to always prepare multiple workpieces (as many as possible).

(Problems to be solved by the invention) Most of the conventional techniques rely on human hands.Since the objects to be handled are quite heavy, this series of tasks that rely on human hands is very troublesome and has very low work efficiency. , and it is dangerous work.

Although the automatic machines described above have made progress in terms of not requiring human labor, they are large-scale and naturally expensive, and this method of lifting heavy objects by holding them from the sides is prone to unexpected events such as power outages and malfunctions. However, it has not become popular because it always carries the risk of falling out due to problems, and since it only has a reversal function, there are few benefits in terms of investment efficiency.

In addition, according to the conventional technology, the processing method is batch processing, so the workpieces are not processed when they are set, and there are always a large number of them (the more the machine has, the more efficient it is).
This method has the disadvantage that many workpieces have to be prepared, which makes the preparation process more complicated, and of course increases the number of work-in-progress items.

(Means and operations for solving the problems) The present invention solves these problems, and one embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall perspective view of one embodiment.

Reference numeral 1 denotes a bed with Y rails 2 provided at both ends.A main shaft saddle 5 with a cutter 10 provided at the lower end is attached to the elevating bridge 4 so as to be slidable in the X direction, and the elevating bridge 4 is slidably fitted to the guide columns 28 at both ends so as to be able to slide freely in the Z direction.The upper part of each guide column 28 is fixedly connected with an upper frame 29, and the lower part has wheels connected to a drive device (Fig. (not shown)
A running circular frame 3, provided with a directional saddle 30, is mounted and constitutes a movement in the X direction.

Further, in the center of the bed 1, a pedestal 6 having a through cutout 7 in the center, through which a reversing transfer cart 8, which will be described later, can be raised and lowered, is fixed to the entire length of the machine in the X direction. The workpiece is placed on the pedestal and processed by the cutter IO described above.

A trolley rail 9 is provided on the bed 1 at the bottom of the pedestal 6, on which a reversing transport trolley 8 is placed and can be freely moved in the X direction by an axle drive device. 11 is a control device for this machine. FIG. 2 is a plan view of this machine, and FIG. 3 is a sectional view of the position shown in FIG. 2.

Next, the above-mentioned inverted f multi-feed table HL8 will be explained based on FIGS. 4 and 9.

A lift table 14 having a transfer table base 13 at the bottom and a rectangular window in the center above the center bin 18
The two cross arms 15 are arranged in an X-shape and are connected to each other by a two-piece link mechanism, so that the two cross arms 15 can be freely rotated.The four upper and lower positions at one end of the cross arms 15 are arm hinged by a pin 16. The arm is rotatably locked at the cross arm 15. Rotatable support rollers 17 are attached to four locations above and below the other end of the cross arm 15, and a lifting actuator is installed between the cross arms 15. The ether 19 is telescopically attached, and the elevating table 14 is expanded and contracted.
At this time, the support roller 17 at one end of the cross arm 15 moves inside the transfer table base 13 and the elevating table 14, allowing smooth elevating and lowering.

Seven actuator arms 2G are fixed to the reversing shaft 25 at the center of the upper surface of the lifting table 14, and the reversing frame A
22 are rotatably slid together, and the reversing frame B23
The supporting actuator 21 is fixed between the actuator arm 26 and the reversing frame A22, and the supporting actuator 21 is fixed to prevent rotation after insertion, and is rotatably inserted and attached to the bearing 27. A reversing actuator 20 is telescopically attached between the lift table 14 and the lift table 14, and two sets of wheels 12 are mounted on the transfer table base 13, one of which is rotatable and the other is a drive Il! (not shown), and is movable in the Y direction by a drive device.

Next, the effect will be explained.

The workpiece 32 to be processed is placed on one end of the machine frame 6, and then moved to a position where it can be processed (the position of the workpiece 31 being processed). To do this, the lifting table 14 of the reversing transfer cart 8 is in a low position. (5th
Figure B) Next, the lifting actuator 19 is activated to raise the lifting table 14, and the unprocessed workpiece 32 is lifted and separated from the pedestal 6. The drive device of the wheels 12 moves the workpiece 31 to the position of the workpiece 31. Here, the lift actuator 19 is activated to lower the lift table 14 and place the workpiece 32 to be processed on the pedestal 6. Next, the cutter moves to the position of the workpiece 31. l
Machining the upper surface of the workpiece using O, the next step is to turn the workpiece over so that the unprocessed surface faces upward.
To do this, as shown in Fig. 7, the reversing transfer cart 8 is kept in a low state.Next, the reversing frame A22 is raised 90 degrees by the support actuator 21 and moved to the point where it contacts the workpiece. The lifting actuator 19 is actuated to raise the lifting table 14, and the reversing actuator 20 is actuated as shown in FIG.
3 is pushed up, the 7 actuator arm 26 also rotates in the same way, resulting in the reversed frames A22, B23, .
The workpiece is rotated 90° while maintaining the right angle, and the workpiece is also rotated 90°.Next, the lifting table 14 is lowered and the workpiece is lowered onto the pedestal 6 (the state shown in Figure 1O) to begin the next processing. By repeating the process from FIG. 7 to FIG. 10, the reversal can be repeated continuously, so that all four surrounding surfaces can be processed.

The workpiece that has been machined on all four sides is shown in Figures 5 and 6 as described above.
As shown in the figure, it is transferred to the other end of the machine to finish machining one workpiece.

(Effects of the Invention) According to the present invention, the following menot can be provided by the above-mentioned action.

(1) Once the workpiece is set at one end of the machine, no human intervention is required during the entire process of transferring, reversing, and discharging.

(2) The advantage of paragraph (1) inevitably reduces dangerous work.

(3) A series of multiple workpieces can be processed in an assembly line, allowing you to prepare the next workpiece during machining, increasing machine efficiency. ! The illumination rate can always be kept in the best condition.

(4) Structurally, even if an unexpected event occurs, the machine is not only safe because there is no ring of falling workpieces, but also the machine and the workpieces will not be damaged.

(5) As shown in this example, it is structurally simple, and the above (
Another great effect of the present invention is that the functions of items 1) to (4) can be provided at low cost.

As described above, according to the present invention, all of the above-mentioned problems have been solved, and therefore it is believed that the present invention can make a great contribution to the industrial fields in which it can be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the entire machine. FIG. 2 is a plan view of the entire machine. Figure 3 is the position shown in Figure 2! FIG. FIG. 4 is a sectional view of the position shown in FIG. 8. 5 to 10 illustrate a series of operations. L...Bed 2...Y rail 3...
... Traveling gate type frame 4 ... Lifting bridge 5 ... Main shaft saddle 6 ... Frame 7 ...
Through cutout portion 8... Reversing transfer trolley 9... Salary trolley rail IO... Cutter 11... Control device 12
... Wheels 13 ... Transfer base 14
... Lifting table 16 ... Cross arm 16
φ fist...bottle 17...support roller l8...
... Center bin 19 ... Lifting actuator 20 ... Reversing actuator 21 ... Support actuator 22 ... Reversing frame A 23 ... Reversing frame B 24 ... Arm hinge portion 25... Reversing shaft 26... Actuator arm 27... Bearing 28... Guide column 29... Upper frame 30... Y traveling saddle 31...・Processing workpiece 32... Workpiece before processing 33... Engraving of the drawing of the processed workpiece (no change in content) 5th procedure Sode correct il (method) % formula % Display of the case 1985 Patent Application No. 83-2021, Title of the invention Relationship with the case of the person who makes the reversal method and device correction Patent applicant's postal code? 20-11 Furicast Hiroshima Ken Fukuyamashi Ekyakumanakura Address 778 Panakura, Ekiya-cho, Fukuyama City, Hiroshima Prefecture
-17 Recall] Mr. Bayashi Shishishi Name
Shinji Kobayashi 11.0 Phone 0849-7
6-2850 Amendment order date November 29, 1988
Drawings subject to day correction

Claims (3)

[Claims] (1) A cart that has a table that can be raised and lowered, two reversible frames that can rotate on the top surface of the table, and a space that allows the cart to move at the bottom, and a notch that allows it to move up and down. A reversing method in which the workpiece is lifted by lifting the table using a holding frame, then reversed by rotating the reversing frame, and then placed on the pedestal by lowering the table. (2) Using the reversing transfer cart and pedestal described in claim (1) above, the workpiece placed on one end of the pedestal is lifted into the processing range by lifting the table of the reversing transfer cart. A transfer/inversion method in which the table is moved and placed on a pedestal for processing by lowering the table, then inverted by the reversing method described in item (1) above, and after processing is moved to the other end of the pedestal. (3) On the upper surface of the lifting table that can be raised and lowered, the reversing frame A and the reversing frame B are slidably fitted to the reversing shaft so that the former can rotate independently, and between it and the actuator arm fixed to the reversing shaft. A support actuator is provided between the reversing frame A, and the latter is fixed to the reversing shaft so that it can rotate together with the reversing frame A, and a rotation actuator is provided between the lifting table and the reversing shaft is attached to the bearing. They are attached by sliding together to form a reversing transport trolley. Further, in the implementation of claim (1) and (2), the reversing transfer cart is composed of a frame having a space in which the lower part is movable and also having a through cutout part that can be raised and lowered. Automatic reversing device for rectangular parallelepiped workpieces for direct use.