JP4318443B2 - Thin plate double-sided simultaneous processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a thin plate double-sided simultaneous processing apparatus for cutting both surfaces of a thin plate.
[0002]
[Prior art]
When processing thin plates at the same time in the prior art, there is a method that uses a mounting tool such as a vise or magnet plate to fix a thin plate that can be cut on only one side to a known vertical milling machine, and processes the thin plate one side at a time. there were. In the processing of a thin plate by this method, in order to remove the warp of the thin plate due to processing distortion, it is necessary to repeat the front and back processing several times for each side, which takes time such as setup.
[0003]
In addition, as another method, processing by a double-head milling machine in which a pair of opposing left and right cutters cut both sides of a thin plate is also known, but in processing a thin plate by such a method, a process for fixing the thin plate is known. There is a problem that there is no rigidity of the tool, chatter vibration is generated and the machining accuracy is affected, and further, there is a problem that the width and the machining height are limited.
[0004]
[Problems to be solved by the invention]
Accordingly, the present invention has been made to solve the above-described problems, and the object of the present invention is to perform simultaneous processing on both sides of a thin plate so that the workpiece can be processed accurately and in a short time even if the workpiece is a thin plate. It is to provide a processing apparatus.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problem, a thin plate double-sided simultaneous processing apparatus according to claim 1 is provided as follows:
In a thin plate double-sided simultaneous processing device in which a pair of left and right cutters cut both sides of a thin plate,
A left spindle to which a left cutter is attached;
A right spindle to which a right cutter can be attached;
A left drive device that rotationally drives the left spindle;
A right drive for rotating the right spindle;
A left rotary encoder that outputs left position data according to the rotational position of the left spindle;
A right rotary encoder that outputs right position data according to the rotational position of the right spindle;
The left position data output from the left rotary encoder and the right position data output from the right rotary encoder are compared, and the left cutter blade and the right cutter blade are left facing each other with a thin plate interposed therebetween. A control drive unit that controls the left drive device and the right drive device so as to perform a spindle synchronous operation in which the rotation of the cutter and the right cutter is synchronized;
It is characterized by providing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a thin plate double-sided simultaneous processing apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a thin plate double-sided simultaneous processing apparatus according to the present embodiment, FIG. 2 is an explanatory view of a thin plate mounting jig, FIG. 3 is an explanatory view for explaining how the cutter contacts the thin plate, and FIG. FIG.
[0007]
As shown in FIG. 1, the thin plate double-sided simultaneous processing apparatus includes a left cutter 11, a right cutter 12, a left main shaft 21, a right main shaft 22, a left driving device 31, a right driving device 32, a left conductive portion 41, a right conductive portion 42, a left A rotary encoder 51 and a right rotary encoder 52 are provided.
[0008]
The left cutter 11 is attached to the left main shaft 21. The left main shaft 21 is rotatably supported by a bearing or the like (not shown), and the left cutter 11 is configured to rotate with the rotation of the left main shaft 21.
The left main shaft 21 is attached with a left conduction portion 41 which is a belt conduction device such as a timing belt, and a left drive device 31 is also attached to the left conduction portion 41.
[0009]
The left main shaft 21 is attached with a left rotary encoder 51. The left rotary encoder 51 outputs left position data according to the rotational position of the left main shaft 21.
As shown in FIG. 4, the left rotary encoder 51 is connected to the left drive unit 71 of the control drive unit 70, and left position data is input to the left drive unit 71. The left drive unit 71 performs rotation drive control of the left drive unit 31.
[0010]
The right cutter 12 is attached to the right main shaft 22. The right main shaft 22 is rotatably supported by a bearing (not shown) or the like, and the right cutter 12 rotates with the rotation of the right main shaft 22.
The right main shaft 22 is attached with a right conduction portion 42 which is a belt conduction device, and a right drive device 32 is also attached to the right conduction portion 42.
[0011]
The right main shaft 22 has a right rotary encoder 52 attached thereto. The right rotary encoder 52 outputs right position data according to the rotational position of the right main spindle 22.
As shown in FIG. 4, the right rotary encoder 52 is connected to the right drive unit 72 of the control drive unit 70, and right position data is input to the right drive unit 72. The right drive unit 72 performs rotation drive control of the right drive device 32.
And in the control drive part 70, the signal for synchronous operation is transmitted / received bidirectionally between the left drive unit 71 and the right drive unit 72, and the synchronous operation control explained in full detail later is performed.
[0012]
Next, thin plate double-sided simultaneous processing using the thin plate double-sided simultaneous processing apparatus will be described with reference to the drawings.
First, the thin plate 100 is attached to the clamp part 60 shown in FIG. Specifically, as shown in FIG. 2A, the lower jig 61 and the upper jig 62 are attached. As an attaching method, as shown in FIG. 3, the side portion of the thin plate 100 is sandwiched and fixed by a lower jig 61 and an upper jig 62.
[0013]
Since the lower jig 61 and the upper jig 62 clamp the thin plate 100 in this manner, the rigidity of the jig is inferior, which causes a crack during double-side processing. Therefore, in order to improve the jig rigidity, the lower jig 61 and the upper jig 62 are detachable so that the jig with the optimum length can be selected according to the size of the thin plate. For example, as shown in FIG. 2B, when clamping the thin plate 100 ′, the size of the thin plates 100, 100 ′, etc. can be increased by attaching another upper jig 62 ′ instead of the upper jig 62. Regardless, care is taken to keep the jig rigidity constant.
[0014]
In this way, the thin plate 100 (see FIG. 2A) is attached to the clamp portion 60, and cutting is started.
First, an operator operates an operation input unit (not shown) to input a control method (for example, the thickness of a thin plate after cutting). Then, the control drive unit 70 shown in FIG. 4 controls the drive of the left drive device 31 and the right drive device 32, and rotates the left cutter 11 and the right cutter 21 at a predetermined speed so as to rotate.
[0015]
In this case, left position data output from the left rotary encoder 51 is input to the left drive unit 71 of the control drive unit 70, and output from the right rotary encoder 52 to the right drive unit 72 of the control drive unit 70. Right position data is input respectively.
[0016]
The left drive unit 71 and the right drive unit 72 perform synchronous operation communication so that the left drive unit 71 performs the spindle synchronous operation of the left drive unit 31 so as to synchronize the rotations of the left cutter 11 and the right cutter 12. The drive unit 72 performs the spindle synchronous operation of the right drive device 32.
[0017]
When synchronization is made here, as shown in FIG. 3, the left position data and the right position of the left rotary encoder 51 and the right position at a position where the blade portion 11a of the left cutter 11 and the blade portion 12a of the right cutter 12 face each other. The right position data of the rotary encoder 52 is adjusted so as to match. For this reason, if the left rotary encoder 51 and the right rotary encoder 52 are absolute position type rotary encoders, the rotation of the left rotary encoder 51 and the right cutter 12 with the blade portion 11a of the right cutter 12 can be achieved by controlling the rotation so that the absolute positions coincide. As shown in FIG. 3, it rotates at the opposite position.
[0018]
In this state, as shown in FIG. 2A, the left main shaft 21 is moved by the moving mechanism (not shown) so that the left cutter 11 moves the right main shaft 22 in the arrow A direction. Then, the right cutter 12 is moved in the direction of arrow B to bring the blade portions 11a and 12a into contact with the thin plate 100 together. In this case, the positions of the blade portions 11a and 12a face each other as shown in FIG.
[0019]
In this manner, both surfaces of the thin plate 100 are cut while performing a synchronous operation that maintains the state in which the blade portions 11a and 12a face each other. In such a thin plate double-sided simultaneous processing apparatus, the cutting edges of the blade portions 11a and 12a simultaneously contact each other, so that the cutting component force in the thrust direction of the blade is offset, and rolls causing thinning (the thin plate 100 is in the directions of arrows A and B). Swaying).
The thin plate double-sided simultaneous processing apparatus of this embodiment is as described above.
[0020]
【The invention's effect】
The thin plate double-sided simultaneous processing apparatus of the present invention described above can provide a thin plate double-sided simultaneous processing device that can be processed accurately and in a short time even if the workpiece is a thin plate.
[Brief description of the drawings]
FIG. 1 is a front view of a thin plate double-sided simultaneous processing apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram of a thin plate mounting jig.
FIG. 3 is an explanatory diagram for explaining how the cutter contacts the thin plate.
FIG. 4 is a circuit block diagram of a control system.
[Explanation of symbols]
11 Left cutter 11a Blade portion 12 Right cutter 12a Blade portion 21 Left main shaft 22 Right main shaft 31 Left drive device 32 Right drive device 41 Left conduction portion 42 Right conduction portion 51 Left rotary encoder 52 Right rotary encoder 60 Clamp portion 61 Lower jig 62 Upper jig 62 'Upper jig 70 Control drive unit 71 Left drive unit 72 Right drive unit 100 Thin plate 100' Thin plate

Claims (1)

In a thin plate double-sided simultaneous processing device in which a pair of left and right cutters cut both sides of a thin plate,
A left spindle to which a left cutter is attached;
A right spindle to which a right cutter can be attached;
A left drive device that rotationally drives the left spindle;
A right drive for rotating the right spindle;
A left rotary encoder that outputs left position data according to the rotational position of the left spindle;
A right rotary encoder that outputs right position data according to the rotational position of the right spindle;
The left position data output from the left rotary encoder and the right position data output from the right rotary encoder are compared, and the left cutter blade and the right cutter blade are left facing each other with a thin plate interposed therebetween. A control drive unit that controls the left drive device and the right drive device so as to perform a spindle synchronous operation in which the rotation of the cutter and the right cutter is synchronized;
A thin plate double-sided simultaneous processing apparatus characterized by comprising:

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