JPH10244506A - System for controlling tenoning work to side surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for controlling the working of a tenon to side surface by which it is possible to tenon efficiently in both side parts of a work under a simple machining construction. SOLUTION: A cutter 21 is arranged against a work W on a conveying line B and the cutter 21 is moved under control at least, in the vertical (Z axis) direction to perform a tenoning work. A lower origin with a conveying line B as a reference is hypothesized on the lower face of the work W and an upper origin which changes according to the size of the work W is hypothesized on the upper face of the work W. The cutter 21 is moved under control based on data using these origins as starting points. Both side surface parts of the same area of the work W are tenoned by selecting between the two origins and reversing the work W at 180 deg. around the cross section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side mortise processing control system in which a single cutter is used to mortise both side surfaces of a work material.

[0002]

2. Description of the Related Art In a conventional frame construction method, it is necessary to perform various mortise processes on a horizontal member, a column member and the like used as a structural material. For example, tenon processing (joint processing) shown in FIG. 15 is performed on a side surface of a beam or the like as a horizontal member, and this processing is described in Japanese Patent Application Laid-Open No. 5-154807 entitled "Pre-cutting machine". It is done by a processing machine proposed.

To perform tenoning with the above-described processing machine, first, as shown in FIG. 16, the processing apparatus 60 is positioned on the left side of the processing material W, and the cutter 61a is turned to the right. Process the side surface m. next,
The workpiece W is transported in the longitudinal direction, and the processing apparatus 60 is positioned on the right side of the workpiece W as shown in FIG. 17, and the other side n is processed by the cutter 61b directed leftward.

[0004]

In the above-mentioned tenoning method, it is necessary to set the movement of the processing device 60 to both sides of the workpiece W and to carry out the operation of transporting the workpiece W in the longitudinal direction. There was a problem that the whole configuration became very large. In addition, it was pointed out that a large operation was required for that, and workability was poor.

The present invention has been made in view of the above-mentioned problems of the prior art.
An object of the present invention is to provide a side mortise processing control system that has a simple configuration and can improve workability by switching the processing direction up and down while reversing the degree.

[0006]

Means for Solving the Problems In order to achieve the above object, a side mortise processing control system according to the present invention is as follows.

That is, according to the first aspect of the present invention, a cutter for cutting is provided corresponding to one side surface of a work material on a transfer line, and the cutter is controlled and moved at least in a vertical direction by a command signal of a computer. In a processing machine that performs mortise processing, assuming a lower origin based on the transport line surface on the lower surface of the work material and an upper origin that varies depending on the size on the upper surface of the work material. In addition to controlling the movement of the cutter with the data serving as the base point, it is necessary to selectively switch between the two origins and to perform tenon processing on both sides of the same area of the work material by reversing the cross section of the work material. And

According to a second aspect of the present invention, when mortise processing is performed on a lower region of a side surface portion of a work material, a computer controls and moves a cutter with single data in a positive direction set with a lower origin as a base point. When performing tenoning on the upper region of the section, the gist is that the single data is inverted from the lower origin in the reverse direction, and the cutter is controlled and moved with the inverted operation value.

According to the first aspect of the present invention, when one of the upper and lower origins is selected and the cutter is controlled and moved, one side surface of the workpiece can be processed. Next, when the work material is inverted by 180 degrees around the cross section, the other side surface that has not been processed can correspond to the cutter. Therefore, by controlling the cutter by switching to one of the other origins,
Mortizing can be performed on both sides in the same region of the workpiece.

According to the second aspect of the present invention, the data creation is simplified by processing the single data and the data obtained by inverting the single data in the reverse direction, and the tenon processing of the same shape on the processing material can be efficiently performed. It can be carried out.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A side mortise machining control system according to the present invention will be specifically described below with reference to an embodiment. The configuration of a side tenon machine to which the present invention is applied will be described with reference to a side view of FIG. 1 and a cross-sectional plan view of FIG. For convenience of explanation,
First, the left and right sides of FIG. 1 are defined as the front-rear direction, and the front and back sides of the sheet of FIG.

In FIG. 1, reference numeral 1 denotes bases 2a and 2b, and base frames 3a and 3b provided on the front and rear sides of the base 1 at appropriate intervals (space A).
The mounting bases 4a and 4b are provided on the mounting bases 3a and 4b.
Roller-type tables arranged at a and 3b This table 4
Reference numerals a and 4b are disposed with the space A therebetween, and form a transport line B for horizontally transporting a building material (hereinafter, referred to as a processing material W) in a longitudinal direction.

Ca and Cb are clamping means for clamping and fixing the workpiece W. The clamping means Ca and Cb are provided with a pair of vice pieces 5 and 5 which open and close in a centripetal manner, and an operation handle 6 therefor. These clamping means Ca, Cb include:
A well-known adjustment means (not shown) for finely adjusting the whole to the left and right is provided.

Reference numeral 7 denotes one side of the empty space A (the right position in FIG. 2), and a vertical column 8 established on the base 1 is provided on a vertical guide 9 provided on the column 7 so as to be able to move up and down. The lifting body 9 includes a lifting base 9a engaged with the vertical guide 8 and a horizontal beam 9b protruding from the lifting base 9a toward the upper part of the space A.

D is a vertically moving means for controlling and moving the vertically moving body 9 in the vertical direction (Z axis). The vertically moving means D is a servomotor 10 attached to the upper end of the column 7, and a feed screw shaft rotated by the servomotor 10. 11, feed screw shaft 11
The passive nut 12 of the elevating base 9a is screwed into the nut.

Numeral 13 designates a holding member 14 attached to the tip of the beam 9b. A holding member 14 is movable forward and backward by engaging a rail 15 in the front-rear direction with a slide bearing in the holding member E. Forward / backward feed means for controlling and moving in the direction (X axis)
4 side servo motor 16, feed screw shaft 17, holder 13
It is constituted by the passive nut 18 on the side.

F is a cutting head fixedly provided at the lower portion of the front-rear moving body 14. This cutting head F is driven by a drive motor 19 whose rotation axis is directed to the left (see FIG. 3) and a chuck 20. It is composed of a cutter 21 fixed to a rotating shaft. The cutter 21 is provided with a cutter suitable for performing tenoning on the side surface of the workpiece W.

Reference numeral 22 denotes a holder 13 via a mounting stay 23.
The upward and downward guide 24 attached to the
Body that engages with the elevating guide 22 so that it can move up and down
Reference numeral 25 denotes a dust collection port opened at the upper end of the cover body 24. The cover body 24 hangs down to the lower end position of the lifting guide 22 by its weight as shown in FIG.

H is a retracting means for releasing the cover body 24 from the cover position of the cutter 21, and 26 is a lifting guide 22
The upper end of the mounting plate 27 is connected to the lower end of the mounting plate 26. The pneumatic cylinder 28 is a lifting operation piece attached to the end of the piston rod of the pneumatic cylinder 27. The lifting operation piece 28 is connected to the cover body 24. Provide. The air supply port of the pneumatic cylinder 27 is always open, and the cover body 24 can freely move up and down.

J is a detecting means for detecting the position of the upper surface of the workpiece W. The upper surface detecting means J includes a limit switch S attached to the holder 13 via an attachment stay, and a cover 24.
And a switch actuating piece 29 attached thereto.
The limit switch S operates when the lower end of the cover body 24 contacts the upper surface of the workpiece W during the processing operation of the elevating body 9 and outputs a detection signal.

The servo motor 10 of the elevation feed means D and the servo motor 16 of the forward / reverse feed means E are controlled and driven in accordance with predetermined NC data based on the above detection signal. The NC data is programmed in advance according to the shape of the tenon to be machined, and is selected by a selection switch provided on an operation panel described later. Cutter 21
Is a computer 41 and a control device 42 connected thereto.
, And the amount of movement is grasped via the rotary encoder 43.

The position of the lower surface of the workpiece W is on the aforementioned transport line B and is always constant. Therefore, the position can be grasped as an absolute position without requiring special detecting means (lower surface detecting means).

Numeral 30 designates a frame member 31 erected on the base 1 between the front and rear base frames 2a and 2b, and a roller type auxiliary table arranged on the upper surface of the frame member 30.
The auxiliary table 31 forms a series of transport lines B together with the front and rear tables 4a and 4b. Reference numeral 32 denotes a dust collection hopper that opens upward to the space A.

FIG. 4 shows the details of the operation panel M whose location is shown in FIG. 1. The power on / off switch 40a, the upper origin and lower origin switch 40b, the tenon pattern selection switch 40c, and necessary data are input. A key switch 40d, a display 40e for displaying each data, an automatic mode / manual mode switch 40f, and the like are provided. These switches are associated with a computer 41 that stores NC data, such as the data lines in FIG.

Next, the processing material W provided in the above tenoning machine
Will be described. As shown in FIGS. 1 and 2, this device is disposed at both ends of the space A close to the clamping means Ca and Cb, and the configuration thereof will be described with reference to FIG.

Reference numeral 50 denotes a support table 51a, 51b in which three receiving surfaces a, b, and c corresponding to the upper surface, the lower surface, and one side surface of the workpiece W are provided in a U-shape. Two first fulcrums 52a provided on the support base 50 in
52b is a first fulcrum 51a, 51
b, and is an equal-length rotating arm connected to the second fulcrums 53a and 53b provided on the base 1 with the lower restraining end.

The center distance between the second fulcrums 53a and 53b is set to be larger than that of the first fulcrums 51a and 51b (about three times in this embodiment). The center positions of the second fulcrums 53a, 53b and the center of opening and closing of the vise pieces 5, 5 in the clamping means Ca, Cb are provided so as to coincide with each other on a vertical line. The first and second fulcrums are constituted by a support shaft and a bearing cylinder that rotatably supports the support shaft.

R is a reversing operation means provided on the support base 50. The reversing operation means R is a drive gear rotatably provided on one of the first fulcrum 51b and the passive gear 54a fixedly provided on one of the first fulcrum 51a. The inclination position of the support base 50 is changed by changing the meshing position of the two gears. A drive motor (not shown) is linked to the drive gear 54b via a transmission means.

The rotation arms 52a and 52b perform a rotation operation together with the change in the attitude of the support table 50. When one or the other rotation arm 52a or 52b is set to the vertical position, the processing material The receiving surfaces a and c on the upper surface or the lower surface of W are parallel to the transport line B and are immersed below. (See FIGS. 7 and 11)

The construction of one embodiment is as described above. By performing the following control operations, it is possible to perform tenon processing on both side surfaces of the same region while reversing the work material W by 180 degrees around the cross section. it can.

First, the origin switch 40b of the operation panel M is operated to set the lower origin side. By this operation, the servomotor 10 of the lifting / lowering feeding means D is driven, and the cutter 21 moves below the lifting / lowering axis (Z-axis) and sinks from the transport line B. At this time, the evacuation means H simultaneously raises and sets the cover body 24 to the upper evacuation position.

The immersion position of the cutter 21 is a predetermined position Q (see FIG. 1) lowered by a predetermined dimension from a lower origin with respect to the surface of the transport line B. After the setting of the cutter 21, the retracting means H The air supply port of the pneumatic cylinder is opened, and the cover body 24 is freely lowered by weight. The cover body 24 descends until its lower end contacts the upper surface of the workpiece W.

In this state, the workpiece W is supplied onto the transport line B, and the tables 4a and 4b and the auxiliary table 31 are supplied.
Perform positioning on the top. This positioning operation is performed on the basis of the irradiation light beam of a light beam marking means (not shown) disposed above the cutting head F, and the workpiece W
The black line Y attached to the upper surface of the image corresponds to the irradiation light. After the positioning, the workpiece W is clamped and fixed centripetally by the clamping means Ca and Cb.

When the setting of the processing material W is completed, the tenon processing pattern selection switch 40c is set to a required position, and START (step 1) is performed as shown in the flowchart of FIG. As a result, the first cutter position is read out from the previously input data area in the operation loop (step 2). Then, according to the instruction of the Z-axis counter normal rotation setting (step 3), the cutter 21 moves in the positive direction of the Z-axis (downward → upward).

Subsequently, the cutter 21 is moved to a lower origin position by a positioning loop (step 4) to set a target value, and the first cutting is performed. Next, the second cutter position is read from the data area by the calculation loop (step 2), and the cutter 21 is similarly moved in the positive direction of the Z-axis to set the target machining position.

Hereinafter, the same repetition (step 5) is performed until all the cutter positions to be set are read out from the operation loop (step 2).
The processing is completed in (Step 6). The above cutter 21
By the control operation of the above, in the lower region of one side surface of the work material W,
A tenon mortise is made based on the lower surface. (Refer to FIG. 14) After finishing the processing, the cutter 21 is moved to the predetermined position Q,
That is, it returns to the first start position.

In order to obtain a building material in which the above-mentioned processed material W is further subjected to the same female tenon on the other side and the tenon on both sides of the same region as shown in FIG. To

In this case, the vise pieces 5, 5 are opened by the clamping means Ca, Cb, and then the reversing means R is activated. Since the support table 50 is changed in posture as shown in FIGS. 7 to 13 by the engagement between the driving gear 54b and the passive gear 54a, the workpiece W held on the receiving surfaces a to c is lifted from the transport line B. Then, it is set on the transport line B again 180 degrees around the cross section, that is, upside down.

When the workpiece W is reversed, the processing area is changed to the upper surface side, and it is necessary to perform mortise processing with reference to the upper surface, so the cutter 21 is moved to the upper position. The movement of the cutter 21 is performed without interfering with the above-described reversing operation of the workpiece W. This moving operation is automatically performed by setting the origin switch 40b to the upper origin side.

With the switching of the origin, the air supply port of the pneumatic cylinder 27 in the retracting means H is opened. For this reason, the cover body 24 is lowered to the lower end of the elevating guide 22, and a free elevating operation is allowed. (See Fig. 1)
When the above settings are completed, the workpiece W is positioned in the same manner as in the above-mentioned tenon processing, and clamped and fixed.

In the above state, as shown in FIG.
When ART (step 1 ') is performed, the cutter 21 moves in the negative direction of Z-axis (upward → downward), and the upper surface position detecting operation of the workpiece W (step 2') is performed. This detection operation is performed by the limit switch S, and starting from this, the following mortise processing is performed on the upper region of the processing material W.

First, the first cutter position is read from the data area by an operation loop (step 3 ').
When the shape of the mortise is exactly the same as above, and the position from the upper end of the initial cutter position is the same as the position from the lower end of the processing, the computer 41 sends the same single data as in the case of the lower origin. Should be read.

Next, by the Z-axis counter reverse rotation setting (step 4 '), the moving direction of the cutter 21 is instructed in the reverse direction. The absolute value of the movement of the cutter 21 is the same as the case of the lower origin, but the direction is reversed (upward → downward), so that the Z-axis counter is set to reverse rotation.

Next, the first cutter position is indicated by the positioning loop (step 5 '). This position has the same size as that of the lower origin as described above, although the direction is opposite. Hereinafter, the same operation is repeated until all the cutter positions are read out from the operation loop (step 3 ') (step 6'), and the cutter positions are set one after another, and mortise processing proceeds.

As described above, when the tenon shape is the same and the direction is upside down, the data read from the computer 41 may be a single data, and it is sufficient to reverse the movement control direction. The tenoning of the upper region of the workpiece W is completed in END (step 7 ').

[0046]

As described above, the side mortise processing control system according to the present invention performs mortise processing on both side surfaces of the same region in the processing material by switching the processing control direction and inverting the cross section of the processing material. It is. Therefore, as compared with the related art, an excellent effect that the configuration can be simplified and more efficient processing can be performed is exhibited.

[Brief description of the drawings]

FIG. 1 is a side view of a tenon machine for explaining a tenon control method of the present invention.

FIG. 2 is a plan view showing a part of the same.

FIG. 3 is a side view showing a configuration of a cutting head in a tenon machine.

FIG. 4 is a front view of an operation panel applied to the machining control method according to the present invention.

FIG. 5 is an explanatory diagram showing a configuration of a computer and data lines.

FIG. 6 is an explanatory diagram showing a configuration of a work material reversing device.

FIG. 7 is an explanatory diagram of the operation of the reversing device.

FIG. 8 is an operation explanatory diagram, similarly.

FIG. 9 is an operation explanatory diagram, similarly.

FIG. 10 is an explanatory diagram of the operation.

FIG. 11 is an explanatory diagram of the operation.

FIG. 12 is a flowchart of a tenoning control operation based on a lower origin.

FIG. 13 is a flowchart of a control operation based on an upper origin.

FIG. 14 is an explanatory diagram of tenon processing based on a lower origin.

FIG. 15 is an explanatory diagram of tenon processing based on an upper origin.

FIG. 16 is an explanatory diagram of a tenoning operation by a conventional tenoning machine.

FIG. 17 is an explanatory view of a conventional tenoning operation.

[Explanation of symbols]

 A Vacant space B Conveying line Ca Clamping means Cb Clamping means D Elevating / lowering feeding means E Forward / backward feeding means F Cutting head H Retracting means J Upper surface position detecting means S Limit switch M Operation panel R Inverting operating means W Building materials (working materials) 5 Vice piece 10 Servo motor 18 Servo motor 21 Cutter 24 Cover body 40b Switch for switching between upper and lower origins 40c Mortise pattern selection switch 41 Computer 42 Control device 43 Rotary encoder

Claims (2)

[Claims] 1. A processing machine for mortising by disposing a cutter for cutting corresponding to one side surface of a processing material on a transfer line, and controlling the cutter to move at least vertically in accordance with a command signal from a computer. In the lower part of the workpiece,
Assuming an upper origin that fluctuates depending on the size on the upper surface of the workpiece, moving the cutter with data based on the lower origin and the upper origin, and selectively switching the two origins, A tenon mortise processing control method in which tenon processing is performed on both side surfaces of the same region of the workpiece by reversing the cross section of the workpiece. 2. When performing mortise processing on a lower region of a side surface of a work material, a computer controls and moves a cutter with single data in a positive direction set with a lower origin as a base point, and mortises the upper region of a side surface. 2. The side mortise machining control system according to claim 1, wherein when machining is performed, the single data is inverted in a reverse direction from the lower origin, and the cutter is controlled and moved with the inverted operation value.