JPS6133687B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric corner chisel, and particularly to a corner chisel, a corner only position moving device for moving only the corner along a wood surface, a hole position detection device, and a corner chisel. The present invention relates to an electric angle chisel having a hole position storage device that stores position information.

With conventional electric corner chisels, when drilling starts, the corner is waiting above the workpiece (wood), so it is not possible to accurately set the corner at the specified position on the surface of the workpiece. It was difficult. In order to solve this difficulty, it is conceivable to install a gauge that indicates the position of only the corner at the bottom of the support for the corner, in contact with the wood surface, but in this case, when only the corner is in contact with the wood, the gauge may There was a problem in that the gauges came into contact with each other and damage to the gauges could not be avoided.

The present invention was developed in view of the above-mentioned conventional problems, and it is possible to accurately move only the corner to the processing position indicated on the wood, and to prevent damage due to contact only with the corner of the gauge. be. For this reason,
In the present invention, a position indicating gauge is provided in the supporting part for only the corner near the wood surface, and is provided with a position indicating gauge for only the corner, which corresponds to the side surface of the corner and is spaced apart from the side surface by a predetermined distance in the creeping direction of the wood. It is devised so that only the corner positions are preset by matching the machining positions, and the deviation by a distance corresponding to the predetermined interval is corrected by a correction calculator.

Specific embodiments of the present invention will be described with reference to the drawings.
In FIG. 1 showing the electric corner chisel according to the present invention, the corner only support part 50 is a part that moves in parallel on the wood, and the motor 1 is connected to the corner chisel 2 and the cone 3 (see FIG. 2).
Column 4 which slides up and down along with the column 4
A stay 12 that supports the upper end, a longitudinal feed frame 7 that supports the lower end of the column 4 and is held slidably in the longitudinal direction of the wood and moves only the corner 2 in the longitudinal direction of the wood. A width feed frame 5 and a longitudinal feed frame 7 that are slidably held and slidably held in the width direction of the wood and move only the corners 2 in the width direction of the wood are automatically fed in the longitudinal direction of the wood. a feed screw 8, a feed motor 9 that drives the feed screw, and a feed block 1.
0, a lever 11 for moving the feed block 10, etc. Of these, the feed motor 9, feed screw 8, feed block, etc. constitute a corner only position moving device that moves only the corner along the wood surface. The corner support portion 50 is held on a base 60 by slidably holding the width feeding frame 5 on a base 60 that guides the widthwise direction of the wood. The base 60 also has a vise 6 for holding the wood. Although not shown, the width feed frame 5
is laterally positioned by a suitable locking device. The vertical movement of the corner chisel 2 and the cone 3 is achieved by a pinion device (not shown) whose drive source is a cone elevating motor 15 meshing with a rack 14 fixed on the stay 12. Operation and stop of the feed motor 9 that feeds the longitudinal feed frame 7 explained above, and the cone lifting motor 1 that moves the corner chisel 2 and cone 3 up and down.
The control device 100 controls the descending operation, ascending operation, and stopping of the motor 5 and the operation and stopping of the motor 1 that rotates the awl 2.
is controlled in the following order. (1) Feed motor 9 running (2) Feed motor 9 stopped (3) Motor 1 running
(4) After a predetermined period of time has elapsed, the drill lifting motor 15 is operated in a downward direction (5)
After descending to a predetermined position, the awl elevating motor 15 is stopped for a predetermined time (6) The awl elevating motor 15 is operated in an upward operation (7) After rising to a predetermined position, the awl elevating motor 15 and motor 1 are stopped. The gauge 20 is attached to the longitudinal feed frame 7 with screws 21 close to the wood surface as shown in FIG. There is.

Next, to explain the operation of the present invention, by moving the lever 11 back and forth to read the ink line, the longitudinal feed frame 7 is moved back and forth via the feed block 10 and the feed screw 8.
As shown in FIG. 3, align the gauge 20a attached to the ink line 22a drawn on the wood 33 and press the hole position detection switch 23 attached to the lever 11, then the hole position reading device 3
1 reads the position of the black line 22a from the scale 30 and inputs this information to the correction calculator for addition and subtraction and the corner only dimension selection switch 41 via the input bus 56 shown in FIG. This information inputted to the calculator 40 only applies to the end face and corner of the gauge 20a.
The offset amount of the end face 2a of the hole 2a is subtracted and corrected by, for example, a, and this subtracted and corrected information is stored via an input bus 57 at a predetermined address, e.g., address N, of a random access memory (hereinafter referred to as RAM) 53, which is a hole position storage device. be remembered. When replacing the corner only 2, the amount of offset between the end face of the gauge 20 and the end face of the corner only 2 will differ depending on the width l of the corner only 2, so the subtraction correction amount should be adjusted to correspond to the corner only 2 of various widths. A selection switch 41 is provided for selection.

As described above, if the offset amount is subtracted by a by the correction calculator 40 and the position of the black line 22a is stored and stored in address N of the RAM 53, the control device 10
0, the information of this N address is outputted to one end of the NAND gate 42 via the output bus 58, and the current position of the reading device 31 is outputted to the other end of the NAND gate 42 until the two pieces of input information of the NAND gate match. By driving and stopping the motor 9, the end surface 2a of the corner only 2 can be aligned with the black line 22a as shown in FIG.

Similarly, as shown in FIG.
When the black line 22b drawn on the top matches the gauge 20b and the hole position detection switch 24 attached to the lever 11 is pressed, the reading device 31 reads the position of the black line 22b from the scale and calculates it via the input bus 56. This information is input into the device 40.
This information input to the calculator 40 is transmitted to the gauge 20b.
The offset amount of the end face 2b of only the end face and corner 2 is added and corrected by, for example, a, which is the same as the previous time, and this addition-corrected information is sent to the RAM 53 via the input bus 57.
The data is stored at a predetermined address, for example, address (N+1). As mentioned above, the offset amount is added and corrected by a by the arithmetic unit 40 to (N+1) of the RAM 53.
Since the position of the black line 22b has been stored and memorized at the address, the information of this (N+1) address is outputted to one end of the NAND gate 42 via the output bus 58, and the current position of the other reading device 31 is outputted to the other end of the NAND gate 42. If the feed motor 9 is driven and stopped until the two input information of the NAND gate match, only the corner 2
The end surface 2b can be made to match the black line 22b as shown in FIG. It goes without saying that the correction calculation by the correction calculation unit described above may be performed when the information stored in the RAM 53 is outputted via the output bus 58.

As described above, according to the present invention, a predetermined interval is provided between the position indicating gauge and the cutter (corner only) only at the corner that matches the machining position, thereby preventing contact between the cutter and the gauge, thereby preventing damage to the gauge due to the cutter. Shitsu,
It is possible to provide an electric corner chisel that can accurately move only the corner to the processing position indicated on the wood.

[Brief explanation of the drawing]

The drawings show one embodiment of the electric angle chisel according to the present invention, and FIG. 1 is an external perspective view of the electric angle chisel, FIG. 2 is a partial side sectional view of the gauge part, and FIG.
FIG. 5 is a plan view showing the gauge adjusted to the machining position, FIGS. 4 and 6 are plan views showing the gauge during hole drilling, with only the corners in position, and FIG. 7 is a block circuit diagram. In the figure, 2 is the corner only, 4 is the column, 6 is the vise, 7 is the longitudinal feed frame, 8 is the feed screw, 9 is the feed motor, 10 is the feed block, 15 is the drill lifting motor, and 20 is the chisel position. Indication gauge, 23,2
4 is a hole position detection switch, 31 is a reading device, 33
40 is a correction calculator, 50 is a corner support, 53 is a random access memory, 60 is a base, and 100 is a storage device.

Claims (1)

[Claims] 1. A vise that clamps wood, a base that holds the vise in a loose manner, a longitudinal feed frame that is movable relative to the base, and a moving frame that moves the longitudinal feed frame between an initial position and a drilling position. a feed motor for making a hole, a column attached to the longitudinal feed frame, and a corner that is guided by the column and moves forward and backward into the wood to make a hole;
a conical lifting motor that advances and retreats only the corner; a control device that controls the feed motor and the conical lifting motor in a predetermined order; and a control device that is provided on the longitudinal feed frame and indirectly controls the position of only the corner The longitudinal feed frame is provided with a position indicating gauge for only the indicated corner, a reading device that detects the drilling position based on the amount of movement of the longitudinal feed frame with respect to the initial position, and a hole position storage device that stores position data of the reading device. is moved from its initial position and the position indicator gauge is aligned with the marking line drawn on the surface of the wood indicating the drilling position, and the position of the longitudinal feed frame is memorized by the reading device and the hole position storage device. Then, the longitudinal feed frame is returned to the initial position, and then only the corner is moved together with the longitudinal feed frame by the control device, the feed motor, and the drill lifting motor, and only the corner is moved back and forth to make a hole. In the machine, the corner only position indicating gate is provided at a predetermined interval in the wood creeping direction on the side surface of the corner only, and the hole position information in the hole position storage device is corrected by adding or subtracting an amount corresponding to the predetermined interval. An electrical angle chisel characterized by comprising a correction calculator that calculates and cancels out an amount corresponding to the predetermined interval.