JPH09131640A - Automatic drilling device having chip removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate the chip removing operation, and enable operation of a large number of drilling devices by one worker by providing the chip removing device to an automatic drilling device, and removing the chip wound around a drilling tool at each time the drilling is completed. SOLUTION: A chip 12 is wound around a drill 8 after the drilling at the position slightly above the depth of a hole in which the drill 8 is inserted. The direction of rotation of a rotary brush 9 is set downward along the axis of the drill 8 as indicated by the arrow to drop the chip downward. The drill 8 is also rotated when the rotary brush 9 is rotated. The number of rotation is around 300-500 r.p.m., which is about 1/3 that of the rotary brush 9. When the drilling tool 8 is a reamer, the number of rotation of the reamer may be much smaller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic drilling device equipped with a chip removing device that moves to a designated position for drilling and automatically removes chips attached to a drill or a reamer.

[0002]

2. Description of the Related Art NC machine tools for automatically drilling a plurality of predetermined positions are widely used. In the case of automatic drilling, a drilling tool such as a drill or a reamer is attached to the machining head and moved in three dimensions to automatically drill a desired position.

[0003]

[Problems to be Solved by the Invention] When drilling,
Since the drill or reamer has a spiral groove that allows chips to escape, the chips move from the tip of the drill to the root side, but at the root side from the depth of the hole drilled, the drill goes out into the air. The cutting chips lose their ability to move and become stuck around the drill. If the next hole drilling is performed in this state, problems such as "peeling" in the inner diameter of the hole and poor surface roughness occur. For this reason, conventionally, an operator manually removes the chips at each drilling. For this reason, during drilling work, the worker sticks to the NC machine tool,
The work cost was increasing.

The present invention has been made in view of the above problems, and an object thereof is to provide an automatic drilling device with a chip removing device for automatically removing chips after drilling.

[0005]

In order to achieve the above object, the invention of claim 1 is an automatic drilling device for carrying out hole drilling by moving a drilling head having a drilling tool to a drilling position, and a predetermined position. And a chip removing device having a rotating brush that removes chips of the hole processing tool, and the automatic hole processing device performs the hole processing on the rotating brush of the chip removing device each time the hole processing is completed. After making contact with the tool and removing the chips, the next drilling is performed.

The automatic hole drilling device moves the drilling head to the chip removing device when one hole is drilled, moves the hole drilling tool to the position where it contacts the rotary brush, and rotates the rotary brush to remove the chips. After that, it moves to the next hole processing position and performs hole processing, so that chips can be automatically removed.

According to a second aspect of the present invention, in the chip removing device according to the first aspect, the rotation axis of the rotary brush is orthogonal to the axial direction of the hole drilling tool, and the hole drilling tool and the rotary brush are substantially the same. It is in a plane, and the rotation direction of the rotary brush is the direction in which the chips are moved to the tip side of the hole drilling tool. With this configuration, when the rotary brush and the hole drilling tool are rotated, the chips are removed on the axial tip side of the hole drilling tool, and the chips are easily collected.

According to a third aspect of the invention, in the first or second aspect of the invention, the rotating brush is provided with a synthetic resin brush. The synthetic resin brush does not damage the drilling tool,
Moreover, the chips do not adhere to the brush, and the chips can be efficiently removed. A nylon brush is particularly suitable.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view showing the configuration of the embodiment, and FIG. 2 is a perspective view showing details of a processing head and a chip removing device. In FIG. 1, the automatic drilling device with a chip removing device comprises an automatic drilling device 1 and a chip removing device 2. The automatic drilling device 1 drills a hole at a designated position according to a program on an NC machine tool. The structure is composed of a base 3 and a horizontal arm 5 which is vertically installed on the base 3 and will be described later.
A column 4 that rotates, a horizontal arm 5 that is horizontally provided on the top of the column 4 and that extends and contracts the rod 5b, which is composed of a cylinder 5a and a rod 5b, and a cylinder 6a that is vertically provided at the tip of the rod 5b. Made of rod 6b Rod 6
The vertical arm 6 in which b extends and contracts downward, and this rod 6
A hole forming tool 8 such as a drill or a reamer is detachably attached to the lower end of the processing head 7 provided at the tip of b, and is rotationally driven.

In FIG. 2, the chip removing device 2 comprises a disc-shaped rotary brush 9, a brush rotary drive unit 10 for rotationally driving the rotary brush 9, and a support 11 for supporting the brush rotary drive unit 10. To be done. As the rotating brush 9, for example, a nylon brush having a diameter of 150 mm and a thickness of 10 mm is used. The brush rotation drive unit 10 is a motor that operates at an alternating current of 100 V and has a rotation speed of 1000 to 16
It is possible to switch between 2 and 3 stages in the range of 00 rpm. The support base 11 is composed of a double cylinder and is provided with a stopper that expands and contracts and rotates, and fixes the expanding and contracting and rotating positions.

The operation of the apparatus configured as described above will be described. The automatic drilling device 1 is provided with a program for instructing drilling. The position of the hole and the machining depth are specified in this program. When one hole is finished, the program moves to the position of the chip removing device 2 and the hole machining tool 8 such as a drill is displayed in FIG. As shown, in the same plane as the rotary brush 9, the axis of the drill 8 and the rotary axis of the rotary brush 9 are orthogonal to each other, and are in contact with the outer circumference of the rotary brush 9.
An instruction to move to the next hole processing position when the chips attached to the drill 8 are removed is incorporated. As shown in FIG. 2, the drill 8 that has been subjected to the drilling process has cutting chips 12 wrapped around it at a position slightly higher than the depth of the hole into which the drill 8 has been inserted. The rotating brush 9 is turned downward along the axis of the drill 8 as shown by the arrow in the figure, and chips are dropped to the lower side. The drill 8 is also rotated while the rotating brush 9 is rotating. This rotation speed is about 300 to 500 rpm,
It is about 1/3 of the rotating brush 9. When the hole drilling tool 8 is a reamer, the rotation speed of the reamer may be smaller.

[0012]

As is apparent from the above description, the present invention is provided with a chip removing device in the automatic drilling device, and removes the chips wound around the hole drilling tool each time the drilling is completed. Therefore, it is possible to automate the work of removing chips, which was conventionally done manually, and to realize completely unmanned drilling equipment. As a result, one worker can operate a large number of drilling devices, and a plurality of works can be performed together with other works, resulting in cost reduction.

[Brief description of the drawings]

FIG. 1 is an overall view showing a configuration of an embodiment.

FIG. 2 is a view showing a drill around which chips are wrapped and a chip removing device.

[Explanation of symbols]

 1 Automatic Drilling Device 2 Chip Removing Device 3 Base 4 Support 5 Horizontal Arm 5a, 6a Cylinder 5b, 6b Rod 6 Vertical Arm 7 Machining Head 8 Hole Machining Tool (Drill) 9 Rotating Brush 10 Brush Rotating Drive 11 Support 12 Chips

Claims (3)

[Claims] 1. An automatic drilling device for moving a machining head to which a drilling tool is attached to a drilling position for drilling, and a rotary brush installed at a predetermined position for removing chips of the drilling tool. It consists of a powder removing device, and the automatic hole drilling device contacts the rotating brush of the chip removing device with the hole drilling tool every time the hole drilling is completed, removes the chips, and then performs the next drilling. An automatic drilling device with a chip removing device. 2. In the chip removing device, the rotation axis of the rotary brush is orthogonal to the axial direction of the hole drilling tool, the hole drilling tool and the rotary brush are substantially in the same plane, and the rotation direction of the rotary brush is the hole. 2. The automatic drilling device with a chip removing device according to claim 1, wherein the chip is directed to the tip side of the processing tool. 3. The chip removing device according to claim 1, wherein the rotary brush is provided with a brush made of synthetic resin.