JPH07185920A - Method and device for drilling and cutting work - Google Patents

Abstract

PURPOSE:To provide a method and a device for drilling and cutting a work where the moving and the positioning of the work is facilitated by making the same initial positioning condition of the work relative to a drilling machine and a cutting machine in the drilling and cutting line of the work. CONSTITUTION:Tip positioning devices 35, 41 to position the same part of the tip part of a work W are provided at the respective reference positions of a drilling machine 1 and a cutting machine 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machining method for punching and cutting a workpiece such as an H-section steel, and a machining line device for carrying out the machining method. A drilling machine and a cutting machine that perform cutting are related to a processing method and a processing line device that first perform the positioning of the same position of the work at each reference position and then move and position the work to perform drilling and cutting .

[0002]

2. Description of the Related Art For example, a workpiece such as an H-shaped steel is drilled,
The cutting line for cutting is a drill machine equipped with a drill for drilling holes in the H-section steel from above and a drill for drilling holes in the flange from the left and right, and a saw machine such as a saw machine for cutting workpieces. The machine and the machine are arranged in an appropriate positional relationship.

The drill machine is equipped with a movable positioning device which is movable and positionable along a roller conveyor for mounting and supporting a work such as H-section steel, and a rear end portion of the work or a work positioning device using a clamp provided in the moving positioning device. By grabbing a part such as the upper part of the flange and pushing the work to position it, the work is positioned relative to the drill machine. Then, after the work is positioned, the work is drilled by a drill, and at the same time, the marking work indicating the cutting position is performed.

Then, the work after the perforation processing is transferred to the cutting machine side, and after the marking position is aligned with the cutting processing position in the cutting machine, the cutting processing of the work is performed.

[0005]

As described above, when the work is perforated and the marking is performed by the drill machine and the work is transferred to the cutting machine side to cut the work, the marking position is cut. The cutting process is performed according to the processing position.

By the way, since the marking process by the drill machine is carried out by slightly inserting the tip of the drill into the work, the diameter is relatively large and the center of this mark is automatically detected. However, the initial positioning of the workpiece with respect to the cutting processing position of the cutting machine is manual, and there is a problem in improving work efficiency.

As a structure for marking the work, it is conceivable that the work is slitted, marked with, for example, paint, or attached with a label, but such a structure is separated. Since a special device must be added, there is a problem that the configuration becomes complicated and the cost becomes high.

[0008]

In view of the conventional problems as described above, the method of the present invention is a method for performing punching and cutting of a work, and (a) uses a tip positioning device provided on the drill machine side. (B) Positioning the tip of the work at the reference position; (b) Positioning the tip of the work at the reference position, then moving and positioning the work in the longitudinal direction by the movement positioning device, and drilling the work by the drill machine. (C) When the work after drilling with the drill machine is transferred to the cutting machine side and the work is positioned at the reference position on the cutting machine side, Positioning the same point of the tip to the reference position on the cutting machine side by the tip positioning device provided on the cutting machine side; (d) Positioning the tip of the workpiece at the reference position on the cutting machine side. After the cutting, the work is moved and positioned in the longitudinal direction by a common or separate moving and positioning device, and the work is cut by a cutting machine.

Further, the device is a line device for drilling and cutting which comprises a drilling machine for drilling a work such as a shaped steel and a cutting machine for cutting the work, and the drilling machine is And a moving positioning device for moving and positioning the work with respect to the drilling position in the drill machine, and a tip positioning device for positioning the tip of the work at the reference position. In addition to a moving positioning device for moving and positioning the work with respect to the cutting position, a tip positioning device for positioning the tip of the work at a reference position on the cutting machine side is provided. The tip positioning device in the cutting machine is designed to position the same point on the tip of the workpiece at the reference position. Is shall.

[0010]

In the above structure, when performing drilling on a work in the drill machine, the tip positioning device first positions the tip of the work at the reference position, and then the moving positioning device with respect to the drilling position of the drill machine. The work is moved and the position is determined, and the work is perforated.

The work after the drilling by the drill machine is transferred to the cutting machine and cut by the cutting machine. Prior to cutting the work, the work is positioned at the reference position on the cutting machine side. Done. That is, the tip positioner on the cutting machine side positions the same position of the tip end portion of the workpiece positioned by the tip positioner on the drill machine side to the reference position on the cutting machine side.

Then, with respect to the cutting position of the cutting machine,
There is a type in which a work is cut and processed by moving and positioning the work by a moving and positioning device.

That is, since the same portion of the tip of the work is positioned at each reference position of the drill machine and the cutting machine, the positioning portion for the reference position is common and the cutting accuracy of the tip of the work W is high. Even if it is not so good, the workpiece can be positioned with respect to the cutting machine under the same conditions as the positioning of the workpiece with respect to the drill machine, and the positioning of the workpiece on the cutting machine side can be easily automated. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, in order to facilitate understanding, the overall structure of a perforating and cutting line for perforating and cutting a work such as an H-shaped steel will be described.

Referring to FIG. 1, the hole cutting processing line is as follows:
A work machine W such as an H-shaped steel is provided with a drill machine 1 that performs a drilling process, and a work machine 3 such as a saw machine that cuts the work W is provided.

As shown schematically in FIG. 2, the drill machine 1 has a suitable number of vertical drills D1 for drilling the H-section steel web WE from above, as in a normal drill machine.
And a suitable number of horizontal drills D2 for drilling the flange F from the left and right directions. Front and rear roller conveyors 5F and 5R on which the work W is placed and supported are arranged in front of and behind the drill machine 1 (on the left and right in FIG. 1), and a plurality of roller conveyors 5F and 5R on the rear side are provided on the side. A work storage unit 7 that stores the work W is provided.

The work storage unit 7 is provided with a carry-in device for carrying the work W into the rear roller conveyor 5R, and the drive control of the carry-in device is performed under the control of the carry-in controller 9. .

The rear roller conveyor 5R is provided with a movement positioning device 11 for moving and positioning the work W carried in and loaded from the work storage section 7 on the rear roller conveyor 5R to the drill machine 1 side. Has been. The moving / positioning device 11 moves in the front-rear direction along a guide portion 13 provided in parallel with the roller conveyor R. The moving / positioning device 11 is a servo motor under the control of the NC device 15 of the drill machine 1. Is controlled and rotated to move back and forth along the guide portion 13 to move and position the work W with respect to the drill machine 1.

The cutting machine 3 is composed of a saw machine such as a band saw machine, and front and rear roller conveyors 17F and 17R are arranged in front of and behind the cutting machine 3, respectively. Front roller conveyor 5F
Between the roller conveyor 17R on the rear side of the cutting machine 3 and
A traverser 19 is provided to convey the workpiece W after completion of the drilling process to the roller conveyor 17R on the cutting machine 1 side. The drive control of the traverser 19 is performed under the control of the traverse controller 21.

A roller conveyor 17 on the rear side of the cutting machine 1
The R is provided with a movement positioning device 23 that moves and positions the work W on the roller conveyor 17R. The movement positioning device 23 is configured to move along a guide portion 25 provided in parallel with the roller conveyor 17R.

The moving / positioning device 23 functions to position the work W with respect to the cutting machine 1, and its movement is controlled by the NC device 27 of the cutting machine 1.

A work storage section 29 for storing a work (product) after being cut by the cutting machine 1 is provided on the side of the front roller conveyor 17F. This work storage unit 29 has a front roller conveyor 17F.
An unloading device for unloading the work W is provided, and the drive control of this unloading device is performed under the control of the unloading controller 31.

Reference numeral 33 in FIG. 1 is a computer for controlling the NC device 15 of the drill machine 1, the traverse controller 21, the NC device 27 of the cutting machine 1 and the like.

In the configuration as described above, the drill machine 1
In order to position the tip of the work W at the reference position prior to moving and positioning the work W with respect to the reference position of the drill machine 1 according to the present embodiment, as shown in FIG. Further, a tip positioning device 35 is provided.

In the present embodiment, the tip positioning device 35 is provided with a stopper 37 that can be brought into contact with a part of the tip of the work W. This stopper 37 is an appropriate actuator 3 such as an air cylinder.
When the work W is projected and withdrawn from the pass line by the operation of 9, and the work W is projected to the pass line,
It has a function of contacting with a part of the tip end of the work W to position the work W at the reference position, and a function of allowing the work W to move when the work W is retracted.

The cutting machine 1 also includes the tip positioning device 3
5 is provided with a tip positioning device 41 (see FIG. 1) having the same configuration. The stopper (not shown) in this tip positioning device 41 is the work W with which the stopper 37 abuts.
The work W is disposed so as to be positioned at the reference position by abutting on the same position of the front end of the work.

In the above configuration, when the data necessary for machining the work W is input from the computer 33 to the NC device 15 of the drill machine 1, the NC device 15 inputs a work loading instruction to the loading controller 9. It Then, the carry-in device operates under the control of the carry-in controller 9 to carry the work W from the work storage unit 7 to the roller conveyor 5R on the rear side of the drill machine 1.

When the work W is carried into the roller conveyor 5R, the work positioning device 11 moves and positions the work W with respect to the drill machine 1. At this time, first, the actuator 39 in the tip positioning device 35 provided in the drill machine 1 is actuated, and the stopper 37 is projected to the pass line of the work.
A part of the tip end of the workpiece W abuts, and the tip end of the work W is positioned at the reference position.

The moving positioning device 11 is provided with a position detecting device, which detects the position when the moving positioning device 11 pushes the rear end of the work W and the front end of the work W contacts the stopper 37. However, the length of the work W can be detected by calculating the distance from the stopper 37.

After that, the stopper 37 is retracted from the pass line, the work positioning device 11 moves and positions the work W, and after the work W is perforated, the work W is transferred to the front roller conveyor 5F. Further, the traverser 19 conveys and places it on the roller conveyor 17R on the rear side of the cutting machine 3.

The work W placed on the roller conveyor 17 on the rear side of the cutting machine 3 is moved toward the cutting machine 3 by the driving of the roller conveyor 17 or the action of the movement positioning device 23.

Tip positioning device 4 in the cutting machine 3
1 is in a state of protruding from the pass line, the tip positioning device 35 in the drill machine 1
The same portion of the front end of the work W that abuts the stopper 37 comes into contact with the stopper, and the front end of the work W is positioned at the reference position of the working / cutting machine 3.

After positioning the front end of the work W at the reference position on the cutting machine 3 side as described above, the moving positioning device 23
Thus, the work W is moved and positioned with respect to the cutting machine 3, and the work W is cut.

As will be understood, in this embodiment, the work W is moved and positioned after the same position of the tip of the work W is positioned at the reference position of the drill machine 1 and the reference position of the cutting machine 3. Since the configuration is such that the boring process and the cutting process are performed, the positioning portion at each reference position is common, and the positioning can be performed under the same conditions.

Therefore, for example, even when the initial cutting accuracy of the work W is not so good, the drill machine 1
The workpiece W can be positioned with respect to the cutting machine 3 under the same conditions as the positioning conditions of the workpiece W with respect to. Therefore, the work W can be automatically cut by moving the work W from the drill machine 1 side to the cutting machine 3 side.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, as the configuration of the tip positioning device, a non-contact type sensor is used instead of a mechanical stopper such that the same position of the tip of the work is detected by using an optical sensor. It is also possible to adopt a configuration in which the same position is detected.

Further, in the case where the drill machine and the cutting machine are integrated in close proximity to each other in series, the moving positioning device may be commonly used for the drill machine and the cutting machine. It is something.

Further, the moving / positioning device is configured to contact the rear end of the work W to detect the moving position of the work, and the work may be moved by rotationally driving the rollers of the roller conveyor. It is possible.

[0039]

As is apparent from the above description of the embodiments, according to the present invention, the drill machine and the cutting machine are once positioned at the reference positions of the drill machine and the cutting machine at the same position of the work tip. Since the work is moved and positioned with respect to, the work positioning conditions for the drill machine and the cutting machine can be made the same, and the automation of the processing line can be easily implemented.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall configuration of a hole punching cutting processing line for a workpiece.

FIG. 2 is a schematic plan view of a drill machine.

[Explanation of symbols]

 1 Drill Machine 3 Cutting Machine 11,23 Moving Positioning Device 35,41 Tip Positioning Device

Claims (2)

[Claims] 1. A method of punching and cutting a work, comprising the following steps. (a) Step of positioning the tip of the work at the reference position by the tip positioning device provided on the drill machine side, (b) After positioning the tip of the work at the reference position, move the work in the longitudinal direction by the moving positioning device. The process of positioning and then drilling the work with a drill machine. (c) When the work after drilling with the drill machine is transferred to the cutting machine side and the work is positioned at the reference position on the cutting machine side, the same position on the tip of the work that the tip positioning device on the drill machine side has positioned Is positioned at a reference position on the cutting machine side by a tip positioning device provided on the cutting machine side. (d) A step of positioning the tip of the work at a reference position on the cutting machine side, and then moving and positioning the work in the longitudinal direction by a common or separate moving positioning device, and cutting the work by the cutting machine. 2. A drilling cutting line apparatus comprising a drill machine for drilling a work such as a shaped steel and a cutting machine for cutting the work, wherein the drill machine is a drill machine. The cutting machine is provided with a moving positioning device for moving and positioning the work with respect to the punching position, and a tip positioning device for positioning the tip of the work at a reference position. A tip positioning device for positioning the tip of the work at a reference position on the cutting machine side, as well as a movement positioning device for moving and positioning the work with respect to the cutting machine, and a tip positioning device for the drill machine and a tip for the cutting machine. Both positioning devices are configured to position the same point on the tip of the workpiece at the reference position. This is a drilling and cutting line device.