JPH0794122B2 - Dowel hole processing device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a doweling device for punching dowel holes in a frame body of a wooden panel.

“Prior Art” Conventionally, in a wooden prefabricated house or the like, a means for constructing walls, floors, roofs or the like with plywood or the like has been implemented.

As a wooden panel applied to the construction of such a prefabricated house, there is one having a structure as shown in FIG. 9, for example. This wooden panel has reinforcing core members 41a, 41b extending vertically and horizontally inside the frame body 40 assembled in a rectangular frame shape by frame members (core members) 40a, 40b forming vertical and horizontal frames. The heat insulating material 42 such as glass wool is filled in the interior surrounded by the reinforcing core materials 41a, 41b and the vertical and horizontal frame materials 40a, 40b, and both sides of the frame 40 are made of plywood. The face materials 43, 43 are attached.

By the way, when such a wooden panel is applied to, for example, an outer wall, a plurality of panels are preliminarily installed in a factory at the frames 40,
It is made to join between 0 and form a large panel with the same surface to simplify the construction on site. Here, in order to join a plurality of panels between the frame bodies 40, 40, so-called dowel holes for inserting bolts are drilled at corresponding positions of each panel, and the dowel holes are used to bolt the panels together. To join the frames together, and
It is general that the frame bodies 40, 40 are bonded to each other by an adhesive applied between 0 and 40, and the panels are joined and fixed.

In order to make a dowel hole for joining the panels, it has been customary in the past to simply make a hole in the panel frame body 40, 40 at the location.

"Problems to be solved by the invention" However, in the above-described dowel hole drilling step,
The drilling position must be determined by measuring with a tape measure or the like each time, and the workability is poor and the drilling position also varies, resulting in inadequate dimensional accuracy.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dowel hole drilling device which has good workability and is capable of making dowel holes with high dimensional accuracy.

"Means for Solving the Problem" In the dowel hole drilling apparatus of the present invention, a work table on which a wooden panel is placed and a dowel joint disposed on one side of the work table for dowel joining to the frame body of the wooden panel. And a punching machine for punching dowel holes, the side surface of the work table on the side where the punching machine is arranged is provided with a single continuous guide plate protruding above the work surface of the work table. Notches are provided at a plurality of positions on the work surface of the guide plate at predetermined intervals in the length direction of the work surface, and the guide plate is detachably fitted into the notches. A positioning plate for positioning one end of the wooden panel is provided, and a rod-like body is arranged along the length direction of the worktable at the lower part of the leg on the side opposite to the punching machine of the worktable, and the rod-like body is attached. It is provided so as to be movable downward, and is pressed by the rod-shaped body below the rod-shaped body so that The provision of a switch for turning the drive on and off was taken as a means for solving the above problems.

[Operation] According to the dowel hole machining device of the present invention, the positioning plate is fitted into the notch corresponding to the desired dowel hole drilling position of the wooden panel, and one end of the wooden panel is simply brought into contact with the positioning plate. The dowel hole can be easily positioned, and the driving of the punching machine can be turned on / off by simply stepping on the rod-shaped body.

[Embodiment] An embodiment of the dowel hole machining device of the present invention will be described below with reference to the drawings.

1 to 8 are views showing an embodiment of this dowel hole machining apparatus, and in these drawings, reference numeral 1 is a dowel hole machining apparatus. The dowel hole processing apparatus 1 is composed of a work table 2 on which a wooden panel is placed, and a punching machine 3 arranged on one side of the work table 2.

The work table 2 includes a work plate 4 having a rectangular plate shape and legs 5 supporting the work plate 4, and the work plate 4 has a top surface as a work surface 6. The work plate 4 is formed by forming openings 7a and 7b, which are notched in a rectangular shape, in portions other than the vicinity of the punching machine 3, and transport rolls 8a and 8b are arranged in these openings 7a and 7b, respectively.

Further, on the side surface of the work plate 4 on the side where the punching machine 3 is arranged, the guide plates 9a and 9b are projected on the work surface 6 of the work plate 4.
Is provided. The guide plate 9a is a long strip-shaped rectangular plate as shown in FIG. 2, and its upper half portion is projected onto the work surface 6. Further, linear notches 10 are formed at a plurality of locations at predetermined intervals in the longitudinal direction of the portion of the guide plate 9a protruding above the work surface 6. These notches 10 are notched perpendicularly to the work surface 6, and have a width corresponding to the thickness of the positioning plate, as will be described later.
Further, on the back surface of the guide plate 9a, a pair of holding plates 11, 11 ... Is formed on both sides of each of the notches 10 ...
A rectangular positioning plate 12 is rotatably supported between the pair of sandwiching plates 11, 11. The positioning plate 12 is guided by the notch 10 and abuts one side of the positioning plate 12 on the work surface 6 when it is rotated to the work surface 6 side. In this state, one end of the wooden panel is positioned. . That is, the notches 10 are formed so that the distance from the punching position of the punching machine 3 described later corresponds to the distance from one end of the panel of various sizes to the punching position (dough hole position), It is formed so that the distance from the punching position to one surface (the surface on the punching machine 3 side) of the positioning plate 12 guided by the notches 10 can be matched with the distance from one end of the panel to the drilling position (dough hole position). It is a thing. Here, the guide plates 9a, 9b, the sandwiching plates 11, 11, ..., The positioning plates 12 ...
Each is made of steel plate, etc. to prevent warpage due to aging and impact. Further, the distance between the pair of sandwiching plates 11 and 11 is substantially equal to the thickness of the positioning plate 12, and these gaps communicate with the corresponding notches 10 without unevenness. As a result, the positioning plate 12 becomes the holding plate 1
When it is rotated between 1, 11, it can be smoothly fitted into the notch 10 by being guided by the sandwiching plates 11, 11.

As with the guide plate 9a, the guide plate 9b is also provided with notches 10, sandwiching plates 11, 11 ..., Positioning plates 12 ..., from one end of the panel to the drilling position (dough hole position). Is able to determine the distance.

A rectangular plate-shaped mounting plate 13 is rotatably supported on the lower portion of each of the legs 5 of the work table 2 on the side opposite to the punching machine 3, and these mounting plates 13 ... A rod-shaped body 14 made of an L-angle having a length substantially the same as the length of the work table 2 is attached to the rotating end side by welding or the like along the length direction of the work table 2. The rod-shaped body 14 is placed on the upper side end surface of the mounting plates 13 ...
And a plate body 14b that hangs down from the side edge of the plate body 14a and abuts against the tip surface of the mounting plates 13 ...
It is constructed so as to be movable downward by the rotation of 3. Further, the legs 5 provided with the mounting plates 13 are provided with contact plates 15 below the mounting plates 13. The plate 15
Is an L-angled one composed of a plate body 15a joined to the leg body 5 as shown in FIGS. 3 and 4 and a plate body 15b extending horizontally from the upper end edge of the plate body 15a. A long hole 16 extending in the front-rear direction is formed in the plate 15b. Further, holes (not shown) are formed in the plate body 14a of the rod-shaped body 14 at positions corresponding to the contact plates 15, and pins 17 are attached and fixed to these holes, respectively. The tip (lower end) of the pin 17 is inserted into the elongated hole 16 of the contact plate 15, and the tip of the pin 17 is movable in the longitudinal direction in the elongated hole 16. A coil spring 18 is wound around the pin 17. This coil spring 18 is interposed between the plate body 14a of the rod-shaped body 14 and the plate body 15b of the contact plate 15, and when the rod-shaped body 14 is pressed downward as shown in FIG. , Rod 14
The rod-shaped body 14 is biased upward by being pressed by and contracted.

A limit switch 19 for turning on / off the driving of the punching machine 3 is attached to one of the legs 5 provided with the attaching plates 13. As shown in FIGS. 5 and 6, this limit switch 19 has its operating element 19a arranged below the plate 14a of the rod-shaped body 14 and is pierced when the tip side of the operating element 19a is tilted downward. It is wired to drive the machine 3.

As shown in FIGS. 1 and 7, the punching machine 3 includes a punching machine main body 20 for punching dowel holes, a pressing machine 21 for holding a wooden panel, and a mirror for checking the punched state of the dowel holes. It is composed of 22 and. The punching machine body 20 is a fixed base.
It is mounted on 23 and fixed, and the drill blade 25 provided at the tip of the shaft of the motor 24 rotates to make a dowel hole in the frame 40 of the wooden panel. By being turned on and driven,
A shaft (not shown) to which the drill blade 25 is attached is moved forward by a moving mechanism (not shown), so that a predetermined position of the frame 40 of the wooden panel mounted on the workbench 2 is punched. .

The holding machine 21 includes a support frame 26 integrally attached to the fixed base 23 and an air cylinder attached to the support frame 26.
27 and a pressing member 29 that follows the piston 28 of the air cylinder 27. The support frame 26 is attached to the workbench 2 side of the fixed base 23, and is a U-shape formed so as to surround the drill blade 25 of the punching machine main body 20. The support frame 26 has side surfaces of the plate-shaped side frames 26a, 26a joined between the guide plates 9a, 9b provided on one side of the workbench 2, and is installed between the side frames 26a, 26a. Plate-shaped top frame 2
6b is protruded from the side frames 26a, 26a so that the workbench 2 side is located directly above the workbench 2.

An air cylinder 27 connected to a compressor (not shown) is fixed to the lower surface of the top frame 26b. This air cylinder 27, when the limit switch 19 is turned on,
The piston 28 is lowered by driving the compressor. A disk 30 for pressing a wooden panel is fixed to the tip of the piston 28.
Further, a supporting portion 31 of the pressing member 29 is attached and fixed to the front end surface of the top frame 26b, and the sliding bar 32 is vertically movable through the supporting portion 31 through its top plate 31a and bottom plate 31b. It is installed. A rectangular holding plate 33 is attached to the lower end of the sliding rod 32.
Is attached and fixed.
A connecting plate 34 for connecting the disk 30 and the disk 30 is attached so as to extend from the upper surface of the pressing plate 33 to the upper surface of the disk 30. In addition, the sliding rod 32 includes a top plate 31a and a bottom plate 31b of the support portion 26.
The stroke deciding plate 35 is screwed between and, and the position of the stroke deciding plate 35 determines the descending position of the pressing plate 33. That is, when the pressing plate 33 is moved down following the disk 30 of the piston 28, the stroke determining plate
When 35 is brought into contact with the bottom plate 31b of the support portion 26, the sliding rod 3
The descent of 2 stops.

A support rod 36 extending upward is attached to one side plate 26a of the support frame 26, and a mirror is provided at an upper end portion of the support rod 36.
22 is rotatably supported in the direction of arrow A in FIG.
The mirror 22 allows the operator to easily confirm the drilling state of the dowel hole from the front of the worktable 2 (the side opposite to the punching machine 3), and can be rotated in the direction of arrow A in FIG. This makes it possible to handle differences in worker height.

In order to make a dowel hole in the frame body 40 of the wooden panel using the dowel hole lowering device 1 having such a structure, first, as shown in FIG. 7, the positioning plate 12 corresponding to the desired dowel hole drilling position is rotated. Move it and make it fall on the workbench 2. Next, the wooden panel is placed on the workbench 2, and the side end surfaces on the side where the dowel holes are formed are brought into contact with the guide plates 9a and 9b, and one end surface is brought into contact with the above-mentioned fallen partition plate 12.

Next, in this state, the rod-shaped body 14 is stepped on with a foot. Then, as shown in FIG. 6, the rod 14 rotates downward while being supported by the mounting plates 13 ...
19a is pressed and falls downward, whereby the driving of the punching machine 3 is turned on. When the driving of the punching machine 3 is turned on, first, compressed air is introduced into the air cylinder 27 and the piston 28 descends, and the disk 30 comes into contact with the upper surface of the wooden panel and presses it. Here, as the piston 28 descends, the pressing plate 33
Also descends and presses the wooden panel with the disk 30. In this case, the descending stroke of the piston 28 is determined in advance by the position of the stroke determining plate 35, and the disc 30 and the pressing plate 29 press the wooden panel without excess or deficiency to fix it. Further, when the worker steps on the rod-shaped body 15 and then releases his / her foot, the urging force (restoring force) of the coil spring 18 wound around the pin 17 causes the rod-shaped body 14 to rotate upward, as shown in FIG. Return to the initial position shown. As a result, the operating element 19a of the limit switch 19 is also released from the pressing force of the rod-shaped body 14 and pivots upward to return to the initial position. It should be noted that the limit switch 19 is provided with a timer (not shown), and once it is switched on by pressing the operating element 19a, the piston 28 of the air cylinder 27 begins to descend regardless of the return of rotation of the operating element 19a. A series of operations described later will be performed for a predetermined time.

Further, following the lowering of the piston 28, the punching machine main body 20 is driven, the motor 24 is actuated to rotate the drill blade 25, and the drill blade 25 is advanced by a moving mechanism (not shown).
Dowel holes are drilled in the frame of the wooden panel. At this time, the operator assists the wooden panel by hand so that the wooden panel will not be displaced during drilling, and the mirror 22
It is possible to confirm the state of perforation by 25.

After that, the drill blade 25 is retracted by the moving mechanism, the piston 28 is raised, and the pressure fixing of the wooden panel is released.

After drilling one dowel hole in this way, the above operation is repeated to drill a necessary number of dowel holes on one side surface of the wooden panel at a desired position. By carrying out the portions of 9a and 9b projecting from the work surface 6, the next positioning plate 12 can be easily mounted.
You can move quickly to.

When the dowel hole is formed on the other side surface as well, as shown in FIG. After piercing, the wooden panel is moved to the processing device 1 on the opposite side via a movable workbench and the other side is pierced, so that it is not necessary to invert the wooden panel, and therefore large size You can work easily and safely when drilling wood panels.

In the dowel hole machining apparatus 1 having such a configuration, the dowel hole can be easily positioned by simply rotating the positioning plate 12 corresponding to a desired position, and the dowel hole in front of the workbench 2 can be easily positioned. Even in the position, the dowel hole can be surely formed by simply stepping on the rod-shaped body 14 with a foot.

Although the L-angle is used as the rod-shaped body 13 in the above-described embodiment, the rod-shaped body of the present invention is not limited to this, and may be, for example, a plate-shaped body, a prismatic body, or a cylindrical body. But it's okay.

"Effects of the Invention" As described above, the dowel hole drilling apparatus of the present invention has the positioning plate fitted in the notch corresponding to the desired dowel hole drilling position of the wooden panel, and one end of the wood panel is attached to the positioning plate. The dowel hole can be easily positioned by only bringing them into contact with each other, which allows the dowel hole to be formed with high dimensional accuracy. Further, since the driving of the punching machine can be turned on / off by simply stepping on the rod-shaped body, it is possible to drive the punching machine while holding the wooden panel with both hands, and for example, even in a place away from the punching machine. The punching machine can be easily driven, and therefore the workability is extremely excellent.

[Brief description of drawings]

1 to 8 are views showing an embodiment of the dowel hole machining device of the present invention. FIG. 1 is a perspective view showing a schematic configuration of the dowel hole machining device, and FIG. 3 and 4 are side sectional views for explaining the operation of the rod-shaped body, and FIGS. 5 and 6 are side views showing the relationship between the rod-shaped body and the limit switch. FIG. 7 is a perspective view of a main part for explaining the method of use, FIG. 8 is a plan view showing a state in which the dowel hole machining devices shown in FIG. 1 are used in parallel, and FIG. 9 shows dowel hole machining. It is a perspective view which shows an example of the wooden panel made. 1 ... Dowel hole drilling device, 2 ... Workbench, 3 ... Drilling machine, 5 ... Leg, 6 ... Working surface, 9a, 9b ... Guide plate, 10 ... Notch, 12 ... Positioning Plate, 14 ... Rod, 19 ... Limit switch.

Claims (1)

[Claims] 1. A workbench on which a wooden panel is placed, and a punching machine which is disposed on one side of the workbench and which has a dowel hole for making a dowel joint on a frame body of the wooden panel. , A guide plate is provided on the side surface of the work table on the side where the punching machine is arranged, so as to project above the work surface of the work table, and the portion of the guide plate projecting above the work surface has a length direction of the work surface. A plurality of notches are provided at predetermined intervals, and a guide plate is provided with a positioning plate that is detachably fitted to the notch to position one end of the wooden panel. A rod-shaped body is arranged in the lower part of the leg on the side opposite to the machine along the length direction of the work table, and the rod-shaped body is provided movably downward, and the rod-shaped body is pressed below the rod-shaped body. A dowel hole adding device which is provided with a switch for turning on and off the driving of the punching machine. Apparatus.