JPH07241813A - Tenon working device for wooden building material - Google Patents

Abstract

PURPOSE:To effect efficient tenon working by eliminating waste in the moving stroke of a cutting head. CONSTITUTION:Tables 4a, 4b are arranged before and after a space 3. Said tables 4a, 4b are provided respectively with the clamping means Ba, Bb of a work W. A traversing body 9 and an elevating body 14 are arranged at the side of the space 3 while a cutting head F is controlled so as to be moved left-and-right and up-and-down by both moving bodies. A forwardly advancing cutter (a) and a rearwardly advancing cutter (b) are provided on the cutting head F so as to be movable into fore-and-rear direction freely. A relay conveyer 37, operated up-and-down in conjunction with the movement of the elevating body 14, is provided. The relay conveyer 37 communicates with the fore table 4a and the rear table 4b in the space 3 when the elevating body 14 is situated at an original position while the conveyer 7 is situated at the retreating position in the space to permit the free movement of the cutting head F when the elevating body 14 is situated at descended position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tenon processing device for wooden construction materials, which conveys a processed material in the longitudinal direction and performs tenon processing to a required location.

[0002]

2. Description of the Related Art In a conventional frame construction method, it is necessary to perform various types of mortise processing on a horizontal member, a column member, etc. used as a structural material. For example, a female tenon and a male tenon shown in FIGS. 7 and 8 are formed on an end (a mouth end) of a base or a beam as a horizontal member, and these tenon processing is performed according to Japanese Patent Publication No. 55
It is carried out by a processing machine proposed in No. 965, entitled "Joint and finishing machine". With the number of skilled workers drastically decreasing, machine-precut structural materials are praised for their high precision and high fitting strength.

The above-mentioned conventional mortise processing apparatus is such that work tables are arranged in front of and behind a suitable space (vacant space), and each table is provided with a clamping means for the processed material.
Then, the cutting head that moves into the space is used to perform the front end processing and the rear end processing. In other words, the work material fixed by the front side clamping means is processed by the forward cutter, and the work material fixed by the rear side clamping means is processed by the backward cutter.

In the above processing machine, it is necessary to provide a relay conveyor between the front and rear tables to transfer the processed material in the longitudinal direction in order to make the work smooth and efficient. On the other hand, however, this relay conveyor needs to be retracted from the empty space so as not to hinder the movement of the cutting head. Here, conventionally, the cutting head and the relay conveyor are provided on a common lateral movement base, and the above-mentioned problems are dealt with by operating in conjunction with each other.

[0005]

In mortise processing, the depth dimension (height dimension) is set with reference to the position of the upper surface or the lower surface thereof, and the initial cutting operation of the cutting head is performed in the vertical direction. Is normal. However, in the conventional processing machine, lateral movement is indispensable for retracting the relay conveyor before performing the cutting operation. Therefore, there is a problem that the moving stroke of the cutting head becomes large and wasteful time is consumed.

The present invention has been made by paying attention to the above-mentioned problems of the prior art, and by eliminating the stroke of the cutting head by setting the relay conveyor in the same vertical direction as the cutting direction, it is efficient. We are going to provide a tenon processing device for wooden construction materials that can perform tenon processing.

[0007]

In order to achieve the above object, a tenon processing device according to the present invention is constructed as follows. That is, the gist thereof is that a material feeding path for transporting the processed material in the longitudinal direction is arranged at the front and back with a space between the material feeding material, and a clamping means is provided in each of the material feeding paths, and at least the vertical direction. Controlled movement of
Providing a cutting head that moves into the empty space and the retracted position,
Further, a relay conveyor that moves up and down in relation to the operation of the cutting head is provided, and when the cutting head is at the retracted position, the relay conveyor links the front and rear feeding paths.

In addition to the above requirements, a second aspect of the present invention of a tenon machine for wooden building materials further comprises a lateral moving body which is controllably moved in a lateral direction orthogonal to the material feeding direction, and a vertically controlled movement. The gist is that an elevating body is provided, the cutting head is movably held by these, and the elevating body is provided with a relay conveyor.

In addition to the above-mentioned requirements, a second invention of the mortise processing apparatus for wooden building materials according to the present invention is such that a relay conveyor is arranged to be movable up and down with respect to an elevating body, and the relay conveyor is lowered. The gist is that the limit is regulated by a stopper member provided on the relay conveyor side.

[0010]

The relay conveyor is retracted from the void to the lower position when the cutting head descends. Therefore, the cutting head can be first moved in the up and down cutting directions, and the movement can be controlled in the void to perform cutting without any trouble. Further, the relay conveyor is set in the linkage position by ascending into the void when the cutting head rises and retracts.
Therefore, the workpiece can be transported back and forth without being disturbed by the cutting head.

The cutting head is supported by a lateral moving body which is controlled to move in the left and right direction and an elevating body which is controlled to move in the up and down direction, and performs tenon processing by the movement of both. The relay conveyor is simultaneously moved by the initial cutting operation of the elevating body and set to the lowered position, and is set to the linked position in the void by the returning operation after finishing the processing.

The relay conveyor is suspended from the lifting body and always operates together. During the lowering operation, when the relay conveyor reaches the lower end of the empty space, only the relay conveyor stops and is set there, but the lifting body still performs the lowering operation.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tenon processing device for wooden building materials according to the present invention will be described below. FIG. 1 is a side view showing the overall structure, and FIG. 2 is a front view of the same. Reference numeral 1 is a base frame 2a and 2b are beds 4a provided on the front and rear sides of the base frame 1 with an appropriate space (space 3). Reference numerals 4b are roller type tables arranged on the beds 2a and 2b. Formed on the upper surfaces of the tables 4a and 4b is a material feeding path A for transporting the processed material W in the longitudinal direction.

Ba and Bb are clamping means for the work material W provided at both ends of the table 4a, 4b at the end of the material feeding path A. The clamping means Ba, Bb are a pair of vice pieces 5, 5 on both sides and a vice piece. A feed screw shaft 6 that centrically opens and closes 5, 5 and an operation handle 7 that rotates the feed screw shaft 6. The work material W is clamped and fixed with the center in the width direction as a reference position.

8 and 8 are vacant spaces 3 on the base frame 1.
The left and right guide rails 9 arranged on the lower side are column-shaped lateral moving bodies arranged on the guide rails 8 via slide bearings. The lateral moving bodies 9 are located on one side of the feeding path A (see FIG. 2). It is movably installed on the left side). Reference numeral C denotes a lateral movement means for controlling the movement of the lateral movement body 9. The feed screw shaft 10 in the direction of the guide rail 8 and the servomotor 1 for rotationally driving the feed screw shaft 10 are provided.
1. The passive nut 12 on the side of the lateral moving body 9 that is screwed onto the feed screw shaft 10 is used.

Reference numeral 13 is a vertical guide rail disposed on the side surface of the lateral moving body 9. Reference numeral 14 is a lifting body disposed on the guide rail 13 via a slide bearing.
The feed screw shaft 15 in the direction of the guide rail 13, the servomotor 16 that rotationally drives the feed screw shaft 15, and the passive nut 17 on the lifting body 14 side that is screwed onto the feed screw shaft 15 are configured as a lifting and moving unit that controls the movement of the feed screw shaft 15. . Elevator 14 above
Are provided so as to project laterally from the lateral moving body 9.

Reference numeral 20 denotes a rotary disc E provided at a side end portion of the elevating / lowering body 14. Reference numeral E denotes a rotating means for rotating the rotary disc 20 in a front and rear vertical plane. It is configured by a passive gear 22 mounted on the horizontal support shaft 21, a rack rod 23 meshing with the passive gear 22, and a pneumatic cylinder 24 on the side of the elevating body 14 that operates the rack rod 23. The turntable 20 is
The rotation angle (180
Regulated).

A reference numeral F designates a cutting head provided on the turntable 20. The drive motor 26 projects the rotary shaft 25 both forward and backward, the first cutter a mounted on the front end of the rotary shaft 25, and the second cutter a mounted on the rear end. The cutter b is used. First above
The cutter a and the second cutter b are set in opposite directions by the rotation of the turntable 20. In FIG. 1, the first cutter a is for female tenon and the second cutter b is for male tenon.

Reference numeral 27 is a cover body in which a slide cylinder 28 is engaged with a vertical guide rail 13 so as to be able to move up and down. The free hanging operation of the cover body 27 is stopped by contact with the upper end of the lift body 4. Further, the cover body 27 forms two cover chambers 27a and 27b in the front and rear, and respectively covers the first cutter a and the second cutter b. In the mantle position, the lower end of the cover body 27 is located slightly below the lower ends of the cutting edges of the cutters a and b. 29 is a cover chamber 27
It is a dust collecting port connected to a and 27b.

Reference numeral 30 designates a pneumatic cylinder 31 mounted laterally on the upper end of the lateral moving body 31, reference numeral 31 is an engaging projection provided on the end of the piston rod, and reference numeral 32 is a receiving projection provided on the cover body 27 corresponding to the engaging projection 31. When the two are engaged in the hole, the cover body 2
Hold 7 in that position. Engagement of both is done by the cover body 2
It can only be done when 7 is in the top position. Each member such as the above-mentioned engaging projection 31 constitutes a retracting means G for the cover body.

LS is a lifting body 14 via a mounting stay 33.
The limit switch attached to the cover body 27 is combined with the switch operating piece 34 attached to the cover body 27 to form the detecting means H for detecting the upper surface of the workpiece W. (See FIG. 3) When the cutting head F descends and the cover body 27 comes into contact with the upper surface of the workpiece W to stop, the detection means H moves relative to each other due to the subsequent descending of the cutting head F. Output the detection signal.

With the above detection signal as a base point, the lateral moving body 9
Servo Motor 11 and Elevator 14 Servo Motor 16
Are driven and controlled according to a predetermined NC program. Various operating programs are prepared depending on the processing target, and are appropriately selected by a select switch (not shown) or the like. As an example, in the case of female tenon processing, the program operation of FIG. 4 is performed, and in the case of male tenon processing, the program operation of FIG. 5 is performed.

4 and 5, P1 is a cutter a,
The origin position of b, P2 is the output position of the detection signal, and P3 is the cutting position of the cutter. P1 to P2 are not constant depending on the type of tenon, the height dimension of the processed material W, etc., but P2 to P2
P3 is always constant. From this condition, the starting point of mortise processing can be set with the upper surface of the processed material W as a reference. The cutters a and b are fast-forwarded in the section P1 to P2, and the cutting is fed in the section P2 to P3 and thereafter. After the cutting is completed, the cutters a and b are quickly returned.

Next, 35 is a support frame 37 in which a slide bearing 35a provided on the connecting frame 36 is engaged with the upper and lower guide rails 13 so as to be movable up and down.
It is a roller type relay conveyor arranged at the upper end of the. The relay conveyor 37 moves up and down together with the lifting body 14, and when the cutters a and b are at the origin position (the solid line position in FIG. 2), the relay conveyor 37 is at the upper part of the space 3 and the front and rear tables 4 are provided.
A series of material feeding paths A is formed together with a and 4b.

Here, the connection structure of the elevating body 14 and the relay conveyor 37 will be described. 38 is a connecting rod established on the support frame 35. 39 is a bearing tube 40 on the elevating body 14 side which slidably engages with the connecting rod 38. Is a stopper member fixed to the upper end of the connecting rod 38. When the stopper member 40 contacts the bearing tube 39, the relay conveyor 37 is restricted from freely hanging down. Reference numeral 41 denotes a roller type receiving member provided below the support frame 35.

Reference numeral 42 is a vertical guide provided on the support frame 35. Reference numeral 43 is a lift plate 44a and 4 provided on the vertical guide 42.
4b is a work contact piece 4 provided at the front and rear ends of the lift plate 43.
Reference numeral 5 is a pneumatic cylinder that operates the lift plate 43. The work abutting pieces 44a and 44b appear and disappear on the material feeding surface of the relay conveyor 37.

The construction of the tenon processing device according to one embodiment is as described above, and tenon cutting is performed as follows.
As an example, a case where male tenon processing is performed on the front end and female tenon processing is performed on the rear end will be described. First, the cutters a and b of the spindle head F are checked. In the illustrated example, the forward-facing cutter a is for the female tenon, so replacement is required. In this case, after the cover member 27 is held at the upper end position by the retracting means G, the spindle head F is lowered and the rotating means E is operated in a state where they do not interfere with each other.

After the cutters a and b have been converted by rotating 180 degrees, the spindle head F is returned to the original raised position and the retracting means G is released. By this, the cover body 27
To be able to move up and down freely. If done in this way, next, the workpiece W is supplied to the front table 4a, the tip thereof is set in contact with the work regulating piece 44a, and clamped by the clamp means Ba. In the initial state,
Cutters a and b are at the origin position (solid line position in FIG. 2),
Since the relay conveyor 37 is located above the void 3, the processed material W
The position can be set smoothly.

When the work set is completed as described above, the operation program suitable for male tenon machining is selected by the select switch (not shown), and the cutting machining is executed. As shown in FIG. 5, the cutting head F first has the origin position P1.
Fast forward to the side. Fast-forwarding is performed by moving the lateral moving body 9 to the left. When the cutter b reaches a predetermined value with respect to the centripetal position of the workpiece W by this operation, the cutter b is fast-forwarded downward. This fast-forward is for elevator 1
The lower end of the cover body 27 comes into contact with the upper surface of the processed material W during the downward movement.

The above-mentioned contact position is the output position of the detection signal indicated by P2, and the fast feed is stopped. Then, the cutting feed by the program is started with this position as the base point. A required tenon is processed at the front end of the processed material W by cutting feed. At this time, the relay conveyor 37 is retracted to a position below the space 3. Therefore, there is no hindrance to the cutting process. When the cutting process is completed, the cutting head F is quickly returned to the original position which is the retracted position. By this operation, the relay conveyor 37 is also lifted above the space 3. Further, the cover body 27 is also pushed up and raised by this returning operation.

When the processing of the male tenon to the front end is completed, the clamping means Ba is opened and the processed material W is placed on the rear table 4.
supply to b. By the return to the origin, the relay conveyor 37 is provided in the space 3 and a series of material feeding paths A are formed, so that the transfer is smooth. Table 4 with the end of processed material W at the rear
When it reaches b, the work contact piece 40b is projected onto the conveying surface, the processed material W is returned to the front, and the rear end is contacted. Then, at that position, it is clamped and fixed by the clamp means Bb.

By the rotation of the cutting head F described above, the rearward-facing cutter b is used for processing the female tenon, so that no conversion operation is required this time. Therefore, in this case, an operating program suitable for female tenon machining is selected and cutting is immediately started. This female tenon processing is performed as shown in FIG. 4, and the descending operation is started as it is from the origin position. The operations of the detecting means H, the relay conveyor 37, etc. during operation are the same as those in the above-mentioned male tenon processing.

When the tenon processing to the rear end is completed in this way, the clamping means Bb is opened and the processed material W is carried out from the table 4b and supplied to the next step. After the carry-out, the process returns to the beginning and a new processed material W is supplied to the front table 4a. Then, as described above, while performing each operation such as the selection of the cutter, the selection of the operation program, and the transfer of the processing material, the subsequent mortises are sequentially processed.

The cutting head F having the structure of the above-described embodiment is used.
Indicates that the rotary shaft 25 is projected in the front-rear direction, and the number of attached cutters is limited to two. However, if the turret type cutting head of FIG. 6 is used, it is possible to equip a larger number of cutters, and it is possible to cope with many types of mortise processing. In the figure, 50 is a lifting body 51 is a turret head 52
The turning drive motor 53 is a drive motor for the cutters a to f. Further, it is easy to provide a well-known automatic tool changer (ATC device), and the same operational effect is exhibited.

Further, in one embodiment, the cutting head F is rotated in the vertical plane to perform the turning operation of the cutter. However, it may rotate in a horizontal plane about the vertical axis. This horizontal plane rotation system can be easily implemented even in the turret type cutting head described above. In the case of this method, since there is no downward protrusion of the cutter at the time of conversion, there is a structural advantage that the origin position can be set to a position as low as possible.

In one embodiment, the column-shaped lateral moving body 9
Although the cutting head F is moved to the left and right and up and down with the elevating body 14, the elevating body is arranged on the fixed column, and the elevating body is provided with the lateral moving body to control the movement of the cutting head in both directions. . The arrangement of the relay conveyor in this case is the same as that described above. Also, in one embodiment, two cutters a,
The outer cover of b was covered with one cover body 27 for dual use.
Of course, they may be arranged individually. in this case,
Each of them is provided with the detecting means H.

Further, in one embodiment, the relay conveyor 37 is mechanically linked to the elevating body 14 and the latter is operated by utilizing the movement of the former. However, both may be provided separately and the relay conveyor 37 may be provided with a dedicated lifting means. In this case, since it is not necessary to adjust the position of the stopper member 40 when changing the height of the origin position,
It is convenient for work.

In one embodiment, the work restricting pieces 44a and 44b are provided on the relay conveyor 37 side. However, it is easy to design the work restricting pieces 44a and 44b on the lifting body 14 side or on the beds 2a and 2b side. . If a known laser marking type light beam display is used, it is possible to eliminate the mechanical contact method. The work material can also be positioned by a method of aligning the black wire attached to the work material W with the machine side, for example, the index of the clamp means.

[0039]

As described above, the tenon processing apparatus according to the present invention is such that the relay conveyor connecting the front and rear material feeding paths is retracted in the same direction as the initial cutting direction of the cutting head. Therefore, unlike the conventional case, the cutting head is not laterally moved unnecessarily, and the excellent effect that the cutting process can be efficiently performed is exhibited.

[Brief description of drawings]

FIG. 1 is a side view showing an overall configuration of a tenon processing device according to the present invention.

FIG. 2 is likewise a front view.

FIG. 3 is a front view showing a configuration of a cutting head and a cover body.

FIG. 4 is an explanatory diagram showing an operation of a cutter in mortise processing.

FIG. 5 is likewise an operation explanatory diagram.

FIG. 6 is a side view showing a configuration of a turret type cutting head.

FIG. 7 is a perspective view showing the shape of a female tenon.

FIG. 8 is a perspective view showing the shape of a male tenon.

[Explanation of symbols]

 3 Empty space 4a Front table 4b Rear table A Feeding path Ba Front side clamping means Bb Rear side clamping means 9 Lateral moving body 14 Elevating body 20 Turning board F Cutting head a Forward facing cutter b Rear facing cutter 27 Cover body H Detection means P1 Origin position P2 Detection position P3 Cutting position 35 Support frame 37 Relay conveyor 38 Connecting rod 39 Bearing tube 40 Stopper member

Claims (3)

[Claims] 1. A material feeding path for transporting a processed material in a longitudinal direction,
Arranged in the front and rear with a space between them, and provided with a clamping means in each of the material feeding paths, and provided with a cutting head that moves to the inside of the space and the retreat position by at least vertical control movement. A relay conveyor that moves up and down in relation to the operation of the cutting head is arranged, and when the cutting head is at the retracted position, the relay conveyor links the front and rear feeding paths of the wooden construction material. Mortise processing equipment. 2. A lateral moving body that is controlled to move in the left-right direction orthogonal to the material feeding direction and an elevating body that is controlled to move in the up-down direction are provided to hold the cutting head movably and to move the elevating body. The mortise processing apparatus for wooden building materials according to claim 1, further comprising a relay conveyor. 3. A tenon processing device for wooden construction materials according to claim 2, wherein the relay conveyor is arranged to be movable up and down with respect to the lifting body, and the lower limit of the relay conveyor is regulated by a stopper member provided on the relay conveyor side. .