JP2528453B2 - Work processing positioning command device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work positioning command device for a work, and more specifically, it mainly relates to a flange for a long work such as an H-shaped steel and a grooved steel. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work positioning command device for a work, which automatically measures a work position of a work with a work machine for punching a web to perform work positioning of the work and issues an operation command.

(Prior Art) Conventionally, a portal-type perforating machine for perforating a flange and a web in a work of a shaped steel such as an H-shaped steel used for a construction material has been already developed and used. In this type of conventional punching machine, the NC is adjusted after the operator adjusts the work piece reference to the work piece reference.
Pattern processing is performed by the device.

In addition, when the work is processed, the operator also measures the distance between the patterns with a measure in advance and marks the positions to be processed for the movement between the patterns. The NC machine was used to perform pattern processing again by adjusting the reference of the punching machine to the marked position.

(Problems to be Solved by the Invention) In the above-described conventional processing means, since the operator performs the adjustment of the workpiece reference to the reference of the punching machine and the positioning between the patterns, There was a problem that work efficiency was poor and high-precision machining could not be performed.

(Means for Solving Problems) In view of the conventional problems as described above, the present invention provides a main NC device for controlling a processing machine for processing a long work, and a rear end portion of the work. A work movement amount measuring device having a length measuring wheel that integrally follows and moves is provided, and the movement amount detector that detects the movement amount of the measurement vehicle and the detection signal of the movement amount detector are processed to measure the length. A sub NC device that processes the current position of the vehicle and outputs an operation command for positioning the work to the main NC device is installed on the length measuring vehicle, and processing is performed between the main NC device and the sub NC device. An optical communication device for communicating data and signals of operation commands is provided.

(Example) Hereinafter, the Example of this invention is described in detail based on drawing.

Referring to FIG. 1, FIG. 2 and FIG. 3, a first column 5 is erected on one side of the machine base 3 of the punching machine 1, for example, on the right side in FIG. In FIG. 1, the right side portion is integrally supported. The second column 13 is erected on the other side of the machine base 3, for example, on a slide base 11 slidably engaged with a lateral guide member 9 provided on the upper surface on the left side in FIG. The upper surface of the second column 13 slidably supports the lower surface of the left side of the other side of the arch housing 7 in FIG.

The vertical drill head portions 15 and 15 are for punching the web portion W of the work M such as H-shaped steel from above.
Drill 2 which is driven to rotate via transmissions 19 and 19 by 7, 17
It has 1,21. A left-right positioning member 23 (see FIG. 2) that supports the vertical drill head portions 15, 15 is slidably fixed to a guide member 25 extending in the left-right direction on the front surface of the arch housing 7. The vertical positioning member 27 of the vertical drill head portion 15 is slidably fixed in the vertical direction on the front surface of the horizontal positioning member 23.

On a front surface of a vertical slide 29 mounted on the front surface of the vertical positioning member 27 so as to be slidable in the vertical direction, a support body 31 supporting the vertical drill head portions 15 and 15 so that the vertical position can be adjusted is slidable in the horizontal direction. It is mounted so that it can be fixed freely. The guide member
A screw rod 33 extending in parallel with 25 is rotatably supported by a bearing 35 attached to the arch housing 7, and is screwed to the left and right positioning member 23.

The fixed mounting 37 mounted on the back surface of the left and right positioning member 23,
The left and right positioning member 23 is fixed to the guide member 25 by sandwiching and fixing the guide member 25 between the fixed mounting 37 and the left and right positioning member 23. The lower end of the piston rod (not shown) of the cylinder 39 mounted on the vertical positioning member 27 is appropriately connected to the vertical slide 29, and the vertical slide 29 is moved up and down with respect to the vertical positioning member 27.

The horizontal drill head portions 41 and 43 are for horizontally drilling the flange portion F of the work M from the lateral direction, and are arranged side by side in the first column 5 and the second column 13 so that their vertical positions can be adjusted. 45, 47, reduction gears 49, 51 and drills 53, 55 are provided. Vertical position adjusting members 57 (see FIG. 2) that support the horizontal drill heads 41 and 43 are provided on the front surfaces of the first column 5 and the second column 13 so as to be vertically movable. Slide left and right on the front of the vertical position adjustment member 57.
59 is mounted so that it can slide in the left-right direction.

On the front surface of the left and right slides 56, supports 61 and 63 are vertically arranged side by side and mounted so as to be vertically movable. Support 61,6
On the front surface of 3, the horizontal drill head portions 41 and 43 are mounted so that their left and right positions can be adjusted. That is,
The screw rods 65 and 67 adjust the lateral positions of the horizontal drill head portions 41 and 43 with respect to the support members 61 and 63, respectively, and are rotatably supported by the support members 61 and 63. The screw part is the support 61,63.
Are screwed to mounting plates 69 and 71 which are slidably mounted on the front surface of each of the left and right sides. The cylinder 73 adhered to the side surface of the vertical position adjusting member 57 allows the left and right slide 59 to slide in the horizontal direction with respect to the vertical position adjusting member 57, and its piston rod is appropriately connected to the left and right slide 59.

A vertical position adjusting device 75 for adjusting the vertical position by interlocking with the vertical position adjusting members 57 mounted on the first and second columns 5 and 13 is provided.

A front and rear direction in the lower part of the punching machine 1 In the left and right direction in FIG. 3, a work loading / unloading device 77 for loading / unloading the work M is provided to extend. That is, a plurality of roller conveyors 79 that carry out the work M are arranged at appropriate intervals to the left of the front of the punching machine 1 in FIG. Work M on the right in FIG. 3 behind the punching machine 1.
A plurality of roller conveyors 81 for carrying in are arranged at appropriate intervals. Moreover, each roller conveyor 79, 81 is wound around a chain 83 as shown in FIG. 3, for example, and is normally rotated from the right side to the left side in FIG. H placed
A work M such as a shaped steel is conveyed.

As shown in FIG. 1 and FIG. 3, an operation box 85 at the upper right side of the punching machine 1 is provided, and various operation buttons attached to the operation box 85 are operated. As a result, the punching machine 1 is controlled and the work M
Is processed.

A main NC unit 87 for controlling the punching machine 1 is arranged in the lower left part of FIG. 3 near the punching machine 1.

As shown in FIG. 2 and FIG. 3, a work moving amount measuring device 89 is arranged in proximity to one side on the right side in FIG. In the work movement amount measuring device 89, a column 91 is erected on the right side in FIG. 2, and a guide rail 93 extending to the left side in FIG. 2 is provided on the column 91. The left side is supported by a part of the punching machine 1. As shown in FIG. 3, a rack 95 is attached along the longitudinal direction of the guide rail 93 almost above the center of the guide rail 93 in the width direction.

A pinion (not shown) meshes with the rack 95, and the pinion is attached to the lower portion of the length measuring wheel 97. Length measuring vehicle
97 is equipped with a sub NC device 99, and the sub NC device 99
Exchanging machining data and operation command signals for positioning the work M with the main NC unit 87.

That is, the machining data necessary for the positioning processing of the work M in the sub NC unit 99 is transferred from the main NC unit 87 to the sub NC unit.
A signal of an operation command for positioning the workpiece M processed by the sub NC device 99 is output to the main NC device 87.

The length measuring wheel 97 is parallel to the guide rail 93 via a plurality of supporting members 101 and has a rod-like length-measuring length 103, for example.
Is provided. Further, a rotary encoder 105 as a moving amount detector for length measurement is attached to the right side in the rear of FIG. A sensor 107 is provided at the left end in FIG. The relationship between the length measurement 103 and the work M in FIG. 3 shows a state in which the work M has been machined. However, when actually machining the work M first, it goes without saying that M is placed on the right side of the work loading / unloading device 77 on the right side in FIG. 3, and the length measuring unit 103 integrated with the length measuring wheel 97 is also provided on the right side in FIG. Thus, length measurement 103
It is detected by the sensor 107 that the tip of the abutting contact with the end surface on the one rear side of the work M. Vertical drill head 1
The left end of the work M is detected by a sensor (not shown) provided near either the drill 21 of 5 or the drills 53, 55 of the horizontal drill heads 41, 43, and the work is detected. Assuming that the position of M has been returned to the origin, the work M is processed based on a predetermined pattern. In addition, the position of the work M is always detected by the rotary encoder 105 provided in the length measuring wheel 97, compared with preset machining data, and fed back to control the accurate position.

Positioning of the workpiece M under the control of the main NC unit 87
For example, it is performed based on the positioning operation curve shown in FIG. That is, as shown in FIG. 4, the roller conveyors 79 and 81 are rotated from the start point A to decelerate the work M from the high speed to the low speed according to the positioning operation curve, and stop from the start point A to the final positioning point B. If the points C and D are, for example, ± 4 mm or more with respect to the positioning point B, it is determined that the positioning is defective, and the positioning is performed again.

When the measuring length 103 contacts the rear end surface of the work piece,
The length measuring wheel 97 is preloaded faster than the material feeding speed of the work M so that the work M and the measuring length 103 are not separated from each other. In order to apply a preload faster than the material feeding speed of the work M to the length measuring car 97, a Turkish motor (not shown) is provided on the length measuring car 97, and this torque is constantly rotated at a constant torque.

The sub-NC device 99 and the main NC device provided in the length measuring car 97 in order to move the length measuring car 97 to follow the rear end of the work M, position the work M, and perform predetermined processing on the work M. Machining data and operation command signals for moving and positioning the workpiece M are exchanged with the 87. In order to exchange the processing data and the operation command signal, a part of the punching machine 1, for example, a position at a substantially middle height of the right measurement in FIG. Optical receiving / transmitting devices 109 and 111 are provided as second communication devices.

The optical receiver / transmitters 109 and 111 allow the main NC unit to operate.
Machining is performed while the machining data and operation command signals are exchanged between the 87 and the sub-NC device 99, and the position of the work M is constantly confirmed under the control of the main NC device 87.

Therefore, the work M is processed with extremely high efficiency and high precision as compared with the conventional one.

Next, the operation when processing the work M is performed in the following steps. That is ,. The length of the work M, machining pattern data, machining data such as machining axes, machining commands, etc. are input to the main NC unit 87 and stored.

. The stored contents of the data stored in the main NC device 87 are immediately transmitted to the sub NC device 99 provided in the length measuring vehicle 97 by the light receiving and transmitting devices 109 and 111.

. The measuring vehicle 97 moves forward (to the left in FIG. 2) in response to the origin return start signal from the operation box 85.

. The measuring length 103 contacts the rear end surface of the work M, and the sensor 1
When 07 is turned ON and the left end of the work M is located on the drill sensor, the dimensions are reset and the origin is returned to the origin.

. After the home position return is completed, the automatic start start signal of the operation box 85 is input to the main NC device 87.

. Automatic NC start signal from main NC unit 87 to sub NC
When a signal is output to the device 99 by the light receiving and transmitting devices 109 and 111,
The signal of the rotary encode 105 is processed in the sub NC device 99, the current position of the length measuring vehicle 9 is processed, and an operation command is issued from the sub NC device 99 to the main NC device 87.

The operation signals include work high speed forward, work low speed forward, work high speed backward for positioning the work M,
It is a signal for both low speed work backward, pattern machining, left or right, machining axis right, left or vertical, dimension cutting and marking.

. Based on the positioning motion curve shown in Fig. 4, the main NC
The work M is accurately and automatically positioned under the control of the device 87.

. During the automatic operation, the sub NC device 99 is moved to the main NC device 87 while the sub NC device 99 is provided in the length measuring vehicle 97 while issuing an operation command to the main NC device 87.

. The main NC device 87 receives an operation command from the sub NC device 99, and issues a movement command for the work M to the punching machine 9, respectively.

. The movement amount of the work M is rotated by rotating the rack 95 and a rotary encoder 105 which is suitable for a pinion (not shown), and the movement amount of the work M is fed back to the sub NC device 99.

. The sub NC unit 99 internally processes the output of the rotary encoder 105 which is fed back, and issues a movement operation instruction to the target.

. When the positioning stop point is detected and the correct positioning is performed with respect to the target value, the sub NC device 99 issues a pattern machining command.

. The main NC device 87 that has received the pattern machining command issues a pattern machining command to the punching machine 1 and issues a command to the sub NC device 99 to perform the next positioning again until the machining is completed.

. By repeating the steps up to the above, all the data input to the product operates until it is completed.

. When the positioning exceeds the target point, the positioning is performed by returning about 5 mm.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, not only with a punching machine,
It is also applicable to processing machines such as band saws.

(Effects of the Invention) As can be understood from the above description of the embodiments, the present invention is provided with a main NC device (87) for controlling a processing machine for processing a long work (M), A movement amount measuring device (89) equipped with a length measuring wheel (97) that integrally follows and moves at the rear end of the work (M) is provided, and a movement amount for detecting the movement amount of the length measuring wheel (97). The detection signals of the detector (105) and the movement amount detector (105) are processed to process the current position of the measuring vehicle (97). An operation command for positioning the work (W) is issued to the main NC unit ( A sub NC device (99) for outputting to 87) is installed on the length measuring vehicle (97), and processing data and operation command signals are provided between the main NC device (87) and the sub NC device (99). And an optical communication device for performing the communication.

As is apparent from the above configuration, in the present invention, the length measuring wheel 97 that integrally follows the rear end portion of the workpiece M and moves.
Is provided with a movement amount detector 105, and a detection signal of the movement amount detector 105 is processed to process the current position of the length measuring wheel 97 to give an operation command for positioning the workpiece W to the processing machine. A sub NC device 99 for outputting to a main NC device 87 for controlling the is mounted. An optical communication device is provided for communicating processing data and operation command signals between the main NC device 87 and the sub NC device 99.

Therefore, according to the present invention, when machining is performed by controlling the movement and positioning of the workpiece W and the operation of the machining machine by the main NC device 87 that controls the machining machine for machining the work M,
The machining data of the main NC unit 87 is transferred to the sub NC unit via the optical communication unit.
The operation command signal for positioning the workpiece W is output to the auxiliary NC unit 99, which processes the detection signal of the movement amount detector 105 provided in the length measuring vehicle 97 to process the current position of the workpiece M. NC
It is output to the device 87 and the movement and positioning of the work M is controlled.

Therefore, rather than inputting the detection signal of the movement amount detector 105 to the main NC device 87 that is far away,
Since it is input to the NC device 99, even if the work M is long like H-section steel, the influence of disturbance on the detection signal is small, and since it is the communication by the optical communication device,
The communication of the processing data and the signal of the operation command is less affected by the disturbance as compared with the case of the wired connection.

[Brief description of drawings]

FIG. 1 is a front view of a punching machine which is an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a front view of FIG. FIG. 4 is a diagram showing an example of a positioning operation curve when positioning a work. [Explanation of the symbols that represent the main parts of the drawing] 1 ... Drilling machine, 21 ... Drill 53,55 ... Drill, 77 ... Work loading / unloading device 79,81 ... Roller conveyor, 85 ... Operation box 87 …… Main NC device, 89 …… Work movement amount measuring device 97 …… Measuring vehicle, 99 …… Sub NC device 103 …… Longitudinal measurement, 109,111 …… Light receiving / transmitting device

Claims (1)

(57) [Claims] 1. A main NC device (87) for controlling a processing machine for processing a long work (M), wherein the work (M) is provided.
A work movement amount measuring device (89) having a side long wheel (97) that integrally follows and moves at the rear end of the workpiece is provided, and the length measuring wheel (97) is provided.
A movement amount detector (105) for detecting the movement amount of the vehicle and the detection signal of the movement amount detector (105) are processed to measure the length measuring vehicle (9).
A sub NC device (99) that processes the current position of 7) and outputs an operation command for positioning the work (W) to the main NC device (87) is installed in the length measuring vehicle (97), A work machining positioning command device, comprising an optical communication device for communicating machining data and a signal of an operation command between the main NC device (87) and the sub NC device (99).