JPH0355143A - Workpiece conveyance device for numerically controlled processing machines - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a workpiece conveyance device for a numerically controlled processing machine that is capable of processing heavy, large-sized workpieces with high efficiency. .

(Prior art) Processing machines are known that perform processing such as cutting out, drilling, and engraving through the three-dimensional relative movement of a plate-shaped workpiece and a processing cutter. It is called an NC router and is widely used.

This processing machine has a configuration as shown in Fig. 1 of Utility Model Application Publication No. 1-72303, for example, and includes a table that suctions and fixes a workpiece and moves in the front and rear directions, and a table that moves in the left-right and vertical directions. The required machining is performed on the workpiece by the combined displacement of the machining blades facing each other.

(Problems to be Solved by the Invention) In the conventional processing machine described above, one worker stands in front of the table and sets the workpiece on the table and takes out the processed workpiece. . Therefore, for relatively light and small workpieces, it was possible to work all day long without any trouble.

However, in the case of a large plate material having an area of more than 2112 cm and a thickness of more than 10 cm, at least two operators are required, and the work efficiency is inevitably reduced significantly.

SUMMARY OF THE INVENTION The present invention aims to provide a workpiece conveyance device for a numerically controlled processing machine that can perform processing operations with high efficiency and with a light burden on the operator.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the workpiece conveyance device for a numerically controlled processing machine according to the present invention is constructed as follows.

That is, the gist of the present invention is to provide a table on a frame that is controlled to move in the horizontal
In a processing machine consisting of 4-J, in which the processing blades are controlled to move in the axial direction and the vertical Z-axis direction, the table has a horizontal conveyance surface, and is driven in the X-axis direction. A conveyor means and a fixing means for fixing the workpiece on the conveyor are provided, and furthermore, a means for carrying in and out the workpiece connected to the conveyor means is fixedly provided at the moving end of the table in the X-axis direction. .

(Function) When the table is set at the end of the movement in the X-axis direction, the upper conveyor means and the carry-in means are connected, so by driving the conveyor means, the workpieces on the carry-in means can be automatically sent onto the table. I can do 4-1.

Then, the workpiece fed onto the table can be set in a fixed position by the fixing means, so that the movement of the table in the X-axis direction and the movement of the processing cutter in the Y-axis and Z-axis directions can be controlled in this fixed state. For example, it is possible to perform required three-dimensional processing on a workpiece.

When processing of the workpiece is completed, when the table is set to the X-axis moving end, the conveyor means and the unloading means are connected, so if the conveyor means is driven with the fixing means released, the workpiece on the table is automatically unloaded. It can be sent to the means.

(Example) Hereinafter, an example of a workpiece conveyance device for a numerically controlled processing machine according to the present invention will be described.

Figure 1 is a side view, Figure 2 is a front view, 1 is a frame, 2 is a bed provided on the frame 1, and guide rails 3, 3 in the front and back direction (X-axis direction) are arranged on this bed 2. . Reference numeral 4 denotes a table movably engaged with the guide rail 53.3, and this table 4 is controlled and driven by a servo motor 6 via a well-known ball-cage type feeding mechanism 5. Guide rail 3 above.
Table 3 has a length approximately twice that of table 4 in consideration of the processing range.

A is a conveyor means having a large number of rollers 7 arranged on a table 4, and is driven forward and backward by a reversible motor 9 via a chain type transmission means 8. The 1,000-stage conveyor A has its conveying surface a horizontal, and exerts a conveying force in the X-axis direction.

Reference numeral 10 indicates a feed guide for the workpiece W provided on one side of the conveyor means A on the conveyance surface a. Reference numeral 11 indicates a clamp claw provided on the other side corresponding to the above-mentioned feed guide 10. The opening and closing operations are performed by a pneumatic cylinder 12 attached to the direction (direction). The above-mentioned feed guide 10 and clamp claw 11 guard the fixing means B which clamps and fixes the workpiece W on the conveyor means A. 13 is a pneumatic cylinder attached upward to the rear of the table. 14 is a piston 6 of pneumatic cylinder l3.
It protrudes upward and comes into contact with the end surface of the workpiece W. (See Figure 3) Next, 15 is the column 16 on both sides. 16 is an upper frame arranged to straddle the bed 2; 1717 is a guide rail in the left-right direction (Y-axis direction) arranged on the front surface of the upper frame 15; 18 is a guide rail 17. 17, which is movably engaged with the movable base 18.
Servo motor 20 via Hall screw type feeder side 19
It is driven under NC control.

Reference numeral 21 indicates a guide rail arranged in the vertical direction (Z-axis direction) on the front side of the transfer head 18. Reference numeral 22 indicates a guide rail 2.
The elevating base 22 is movably engaged with the elevating base 1. The elevating base 22 is driven under NC control by a servo motor 24 via a ball screw type feeding mechanism 23. The above elevating heath 22
is configured to extend in the left-right direction, and a large number of spindle heads 25 are attached to the front surface. The spindle head 25 has a motor section and a downward spindle, and a machining blade 26 is mounted at the tip of the spindle. The above processing blade %l26 is
It corresponds to the workpiece W on the conveyor means A.

Next, C is a workpiece carrying means provided on the front side of the frame 1, and is arranged so as to be connected to the front end of the conveyor means A when the table 4 is at the starting end position of the moving process. The above-mentioned carrying means C includes an idle roller 27 rotating in the X-axis direction...
Constructed by

Reference numeral D denotes a workpiece unloading means provided on the rear side of the frame 1, and is arranged so as to be connected to the rear end of the conveyor means A when the table 4 is at the end position of its movement process. The above-mentioned unloading means D is constituted by free rotating rollers 28 that rotate in the X-axis direction.

Since the configuration of the embodiment of the workpiece conveying apparatus according to the present invention is as described above, when the table 4 is moved to the starting position of the movement process, the conveyor means A of the table 4 and the conveyor means A and the conveyor means A of the table 4 are moved as shown by the dashed line in FIG. The free rotating rollers 27 of means C are connected.

Therefore, by driving the conveyor means A backward (leftward in the figure) and pushing the workpiece W on the free rotating rollers in the same direction, the workpiece can be sent onto the table 4 without the risk of falling.

In table-1, conveyance surface a hes 1, tension member 1
The workpiece W is set in a predetermined position by this sludge member 14 while protruding the slit 4 to cope with feeding.

After this feeding, the conveyor means A is stopped and the clamp claws 11 of the fixed stage B are operated, so that the workpiece W is fixed at the set position.

After fixing the workpiece W, the table 4 is controlled and driven in the X-axis direction according to the NC program, and at the same time, the processing blade 26 is controlled and driven in the Y-axis and Z-axis directions to perform a predetermined process on the workpiece W.

When the above-mentioned processing is completed, the table 4 is moved to the end position of the movement process indicated by the two-dot chain line in FIG. Due to this movement, the free rotating rollers 28 of the conveyor means A and the delivery means D...
· is connected, so if the fixing means B is released and the conveyor means is driven backward, the processed workpiece W can be automatically delivered to the carrying-out means D.

After the above-mentioned feeding is completed, the table 4 is controlled to move forward, and is set to the starting end position of the moving process to correspond to the feeding of the next workpiece.

By performing the work as described above, even heavy large plate materials can be processed with high efficiency with little effort.

In the embodiment described above, the carrying-in means C and the carrying-out means D are arranged before and after the frame 1.

This is convenient from the viewpoint of line flow, but after the work is carried out, the table moves to the start position of the moving process and receives the work, which results in wasted time due to idle running.

In the embodiment shown in FIG. 4, the workpiece W is carried into and out of the table 4 at the same table at the starting end of the movement process. In this embodiment, the carry-in means C and the carry-out means D are alternately replaced in the left-right direction to correspond to the work W.

In the figure, 29 is a guide rail for guiding movement of the carry-in means C and the carry-out means D in the left 10 and right directions; 30 is a feed screw type moving operation mechanism; and 31 is a drive motor.

Further, in the embodiment described above, the conveyor means A is constituted by the rollers 7, but the conveyor means may be constituted by using an endless belt instead. Further, the workpiece fixing stage B may be not only a clamp method but also a conventional horizontal method in which the lower surface of the workpiece is sucked.

(Effects of the Invention) As described above, according to the work conveying means of the present invention, even a heavy large plate material can be set on a table with little effort, and it can be carried out after processing. This allows for highly efficient machining work.

[Brief explanation of drawings]

The drawings show an embodiment of a workpiece conveyance device for a numerically controlled processing machine according to the present invention, and FIG. FIG. 3 is a plan view showing another embodiment.

Claims (3)

[Claims] (1) A table whose movement is controlled in the horizontal X-axis direction is provided on the frame, and a table whose movement is controlled in the horizontal Y-axis direction and the vertical Z-axis direction, which are perpendicular to the X-axis direction, is provided above the table. In a processing machine equipped with a processing cutter, the table is provided with a conveyor means that has a horizontal conveyance surface and is driven in the X-axis direction, and a fixing means for fixing the workpiece on the conveyor, and further includes a conveyor means that has a horizontal conveyance surface and is driven in the X-axis direction, and a fixing means that fixes the workpiece on the conveyor, A workpiece conveyance device for a numerically controlled processing machine, wherein a workpiece loading and unloading means connected to the conveyor means is fixedly provided at a directional movement end. (2) The workpiece conveyance device for a numerically controlled processing machine according to claim 1, further comprising a workpiece loading means connected to the start end of the table moving in the X-axis direction and a workpiece unloading means connected to the end of the movement in the same direction. (3) A workpiece conveyance device for a numerically controlled processing machine according to claim (1), wherein a workpiece loading means and a workpiece unloading means are provided interchangeably on the X-axis direction movement start end side of the table.