JPH10244507A - Reversing device for architectural material to be worked - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reversing device for an architectural material to be worked which is capable of performing an efficient working by reversing the work 180 deg. at once around its cross section. SOLUTION: Three receiving faces (a), (b), (c) corresponding to the upper face, lower face and lateral face of a work W are formed on a support bracket 50 for supporting the work W. Further, two first fulcrums 51a, 51b are provided, in parallel with the receiving face (b) of the lateral face, on the support bracket 50 and two second fulcrums 53a, 53b are provided on a base 1. In addition, distances between the fulcrums are spanned by rotating arms 52a, 52b of an equal length. Besides, the distance between the second fulcrums 53a, 53b is set longer than that of the first fulcrums 51a, 51b. A fixed driven gear 54a is mounted on the first fulcrum 51a and a freely rotating drive gear 54b is mounted on the other first fulcrum 51b. Thus the support bracket 50 is reversed by the mesh-driving of the gears 54a, 54b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversing device such as a building material for turning a material placed on a conveying line or the like by 180 degrees around a cross section.

[0002]

2. Description of the Related Art In order to perform a plurality of processings on multiple surfaces of a processing material by a single blade provided in a processing machine, it is one measure to invert the processing material. In the case of a long piece having a large cross section, the reversing operation becomes very troublesome. Therefore, conventionally, as shown in, for example, JP-A-58-171901, a transfer line is provided on the feeding side of a work material. It is connected and provided with a reversing device here.

[0003]

The above-mentioned reversing device is provided with an L-shaped support for receiving a work material.
The machined surface is changed by reversing in degrees.
Therefore, in the case of performing both upper and lower side processing and side side both side processing, in order to make a 180 degree turn, two operations must be repeated for convenience, and there is a problem that the working efficiency is poor.

The present invention has been made in view of the above-mentioned problems of the prior art, and aims to provide a reversing device such as a building material capable of performing a 180-degree turn at a time. .

[0005]

In order to achieve the above-mentioned object, a reversing device according to the present invention is configured as follows.

That is, the gist of the invention is that a support base having three U-shaped receiving surfaces respectively corresponding to the upper surface, the lower surface, and the side surface of the workpiece is provided in parallel with the receiving surface corresponding to the side surface. Two first fulcrums provided on the support, two second fulcrums fixedly provided below the support, and a free end connected to the first fulcrum and a restrained end connected to the second fulcrum. And two pivot arms, and the distance between the second fulcrums
The distance between the fulcrums is set to be larger than that of the fulcrum, and a reversing operation means is provided on the support base.

[0007] As shown in FIG. 7, one of the rotating arms is moved vertically and the other is moved to the vicinity of the rotating end, so that the three receiving surfaces of the support base are in a steady posture. Can correspond to the upper surface, the lower surface, and the side surface. When the reversing operation means is operated, the work material is lifted upward by the receiving surface located below, and is supported with the posture inclined as shown in FIG.

When the rotating arm is moved to a symmetric position as shown in FIG. 9, the workpiece is turned 90 degrees and the side surface is supported by the lower receiving surface. Subsequently, when the rotation arm is operated by the rotation operation means, the workpiece is turned upside down as shown in FIG. 10, and then slides on the inclined receiving surface, and the lower surface thereof comes into contact with the receiving surface. .

Proceeding forward, when the other rotating arm operates vertically and one rotating arm operates close to the rotating end,
The workpiece is turned 180 degrees as shown in FIG. Then, it is delivered in a normal posture that is turned upside down.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the reversing device for building materials according to the present invention will now be described in detail with reference to an embodiment. FIG. 1 is a side view of a tenon machine equipped with the reversing device.
FIG. For convenience of explanation, the left and right sides of FIG. 1 are initially defined as front and rear directions, 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 side 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 denotes 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 part 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 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 detecting means J includes a limit switch S attached to the holding body 13 via an attaching 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.

Based on the above detection signal, the servomotor 10 of the elevating / lowering feed means D and the servomotor 16 of the forward / backward feed means E are controlled and driven in accordance with predetermined NC data. 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.

The position of the lower surface of the workpiece W is on the above-mentioned 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 denotes 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, a reversing device for the work material W, which is a main part of the present invention, will be described. This reversing device is disposed at both ends of the cavity A close to the clamping means Ca and Cb as clearly shown in FIGS. The configuration 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 the 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 driving gear rotatably provided on one of the first fulcrum 51a 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 configuration of the tenoning apparatus according to one embodiment is as described above. By operating as follows, it is possible to perform tenoning on both sides of the workpiece W while reversing the workpiece W around the cross section. .

First, the origin switch 40b of the operation panel M is operated to set the origin to 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 the lower origin relative to the plane of the transport line B.

In this state, the workpiece W is supplied onto the transport line B, and the tables 4a, 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 work material W is completed, a required one is selected from the tenon processing pattern selection switch 40c, 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 the 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.

Thereafter, 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.

The same mortise processing is further performed on the other side of the processing material W to obtain the building material of FIG. 15 as follows.

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 work material W is reversed, the processing area is on 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 performed by the origin switch 4
This is done automatically by setting 0b to the upper origin side.

With the switching of the origin, the air supply port of the pneumatic cylinder 27 in the retreating 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 a calculation 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 mortise 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 ').

In this embodiment, the support table 50 is inverted by the drive gear means.
By rotating the 2a and 52b, the support table 50 is rotated.
Can be reversed. In this case, an appropriate mechanism such as a hydraulic cylinder, a feed screw shaft, a rotating cam plate, or the like can be used as the rotation operating means.

In the case of the work material W having a small height, a gap is formed between the upper and lower surfaces thereof and the receiving surfaces a and c of the support base 50. b may slide down. In order to prevent this, it is easy to provide a clamp means for the work material W or to provide a buffer means, which can be appropriately implemented.

Further, in one embodiment, the case where a tenon is machined on both side surfaces of the work material W has been described, but a tenon mortise at the front end and the rear end of the work material W, a machine for performing a tenon work, and the like. Is also applicable.

[0048]

As described above, in the reversing device for building materials according to the present invention, the working material is uniformly rotated around the cross section by 18 times.
It can be inverted by 0 degrees. For this reason, an excellent effect that various kinds of processing by changing the upper and lower sides or both side faces can be efficiently performed is exhibited.

[Brief description of the drawings]

FIG. 1 is a side view of a tenon machine provided with a reversing device according to 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 showing the configuration of the operation panel.

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 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.

[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 50 Support base a Receiving surface b Receiving surface c Receiving surface 51a First fulcrum 51b First fulcrum 52a Rotating arm 52b Rotating arm 53a Second fulcrum 53b Second fulcrum 54a Passive gear 54b Drive gear

Claims (1)

[Claims] 1. A support base having three U-shaped receiving surfaces respectively corresponding to an upper surface, a lower surface, and a side surface of a workpiece, and a support base provided in parallel with the receiving surface corresponding to the side surface. Two first fulcrums, two second fulcrums fixedly provided at the lower part of the support base, and two rotating arms each having a free end connected to the first fulcrum and a restricted end connected to the second fulcrum. A reversing device, such as a building material, wherein the distance between the second fulcrums is set to be larger than the distance between the first fulcrums, and reversing operation means is provided on the support base.