JPH0317607B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is a processing machine that uses a numerical control method, the so-called NC control method, to determine the processing dimensions when processing workpieces such as shaped steel and steel plates. This invention relates to a sizing method and a sizing device.

"Prior Art" Conventionally, the sizing method and device for this type of processing machine have adopted a dog abutting stopper method. In other words, a dog shaft extending from the fuselage in the lateral direction (hereinafter referred to as the X-axis direction) is provided with a dog so that it can be moved along the axial direction.
This is a dog shaft with scales installed side by side. To set the dimensions of the workpiece to be machined, first use the above scale,
At present, after moving the dog to the position of the dimensions to be machined, the dog is fixed in that position with a nut or bolt, and the workpiece is positioned and machined by hitting the dog against the dog. be.

"Problems to be Solved by the Invention" However, in the dog abutment stopper method described above, it takes a lot of time to position the dog.
In particular, it is necessary to position the dog each time the machining dimensions are changed, and when cutting the workpiece to a set length, the cutting margin is 1/2 of the width of the blade. The machining length must be set by adding only the length, which is extremely cumbersome, and in order to position the dog using the above scale,
There was a problem that it was not easy to obtain highly accurate processing dimensions. On the other hand, the vertical direction (hereinafter referred to as the Y-axis direction) is not used much because it is often used for cutting steel plates, etc., but when punching etc. There are also those that position the workpiece by hitting it against it. Even in such cases, the above patch plate is
Workers used scales to move the scales to the position of the machining dimensions and then fixed them with bolts or nuts, resulting in poor work efficiency and the same problem as above, where high-precision positioning was not easy. It was hot.

Therefore, in view of the above circumstances, the present invention uses a numerical control method that not only improves work efficiency but also enables highly accurate determination of machining dimensions. It is an object of the present invention to provide a sizing method for a processing machine suitable for correcting and cutting, and an apparatus therefor.

"Means to be Solved by the Invention" In order to achieve the above-mentioned object, the present invention provides a sizing method for a processing machine in which the workpiece is positioned against a stopper device to position the workpiece, and when positioning the processing, This method is characterized by a sizing method for a processing machine that uses the center of the processing blade as the processing origin, determines the position to be processed from the processing origin, and controls the movement of the stopper device, and furthermore, it is characterized by the fact that the workpiece is butted against the center of the processing blade. In a sizing device for a processing machine equipped with a stopper device for positioning machining, the stopper device is movable by a power source, an input device for inputting machining conditions such as machining dimensions, and a sizing device from the input device. The present invention is characterized by a sizing device for a processing machine, which comprises a processing device for driving a stopper device based on the information.

``Example'' Below, an example of the sizing method for a processing machine and its apparatus according to the present invention will be described based on the drawings. As shown in FIG. 1, the sizing method for a processing machine according to the present invention involves inputting machining conditions such as machining dimensions and blade width through an input device 2 housed in a control box 1. Based on this information, a microcomputer as a processing device in the control box 1 performs arithmetic processing to position the stopper device A in the horizontal direction, that is, the X-axis direction, and furthermore, to position the stopper device A in the vertical direction, that is, the Y-axis direction. It controls each operation of the stopper device B. First, an apparatus for carrying out the sizing method of the processing machine will be explained based on the drawings.

The control box 1 is fixedly installed on the upper side of the fuselage 4. The body 4 has a throat portion 5 into which a workpiece is inserted and undergoes processing such as cutting and punching, and a striker 6 moves up and down within the throat portion 5. As shown in FIG. 3, the striker 6 is formed at the lower end of the ram 7, and is moved up and down by a hydraulic cylinder within the body 4 or driven by a hydraulic motor. The machine body 4 below the striker 6 has a rotary table 8 as shown in FIGS. 2 and 4, and as shown in FIG. A processing blade 9 is attached to the machine body 4 so that a rotary table 8 can be rotated so that the processing blade 9 can be selected according to the type of processing to be performed. The processing blade 9 is an integrated type of a fixed blade and a movable blade that moves up and down with respect to the fixed blade when struck by the striker 6. Further, the processing blade 9 may be of a separate type in which a fixed blade is provided on the rotary table 8 and a movable blade is provided on the ram 7 instead of the striking element 6. As shown in FIG. 4, the machine body 4 is provided with a material feeding table 10 movable in the vertical direction, that is, in the Y-axis direction, which substantially flexes the rotary table 8 except for the rear side of its surface. Furthermore, as shown in FIG.
A bracket 11 is fixed to the lower part of the front end side, and a handle 13 is rotatably attached to the bracket 11 with a pillow unit 12 interposed therebetween. A slide pipe 15 is fixed to the rotating shaft 14 of the handle 13. The slide pipe 15 has a slot 15a along the longitudinal direction. The slide pipe 1
A slide shaft 16 is inserted into the slide shaft 5 so as to be slidable in the longitudinal direction. A locking pin 17 such as a bolt is embedded in the slide shaft 16, and the locking pin 17 is inserted into the slot 15a and locked with the hole wall, so that the material feeding table 10 is moved in the Y-axis direction. Even if the handle 13, rotating shaft 14, and slide pipe 15 move accordingly when the handle 13 moves, the rotation of the handle 13 can be transmitted to the slide shaft 16. The slide shaft 16 is rotatably supported by the body 4. Slide shaft 1
6, a joint lever 21 is connected through a universal joint 18, a joint lever 19, and a joint pipe 20, and a bevel shaft 23 is connected to the joint lever 21 through a universal joint 22. The bevel shaft 23 is rotatably supported by the body 4. Bevel shaft 23 is connected to rotary shaft 26 via bevel gears 24 and 25. The rotary shaft 26 is rotatably supported by the body 4 and has a rotary 27 made of a material such as urethane having high frictional resistance at its upper end. The rotary 27 is always in pressure contact with the circumferential surface of the rotary table 8. The rotary table 8 has a fitting hole 28, and a lock pin 29 is always inserted into the fitting hole 28 with an elastic biasing force, and only when rotating the rotary table 8, the lever E shown in FIG. 2 is pressed. If you push down against the elastic biasing force, the lock pin 2
9 can be pulled out from the insertion hole 28. As shown in FIG. 4, the material feeding table 10 has a linear motion bearing 30 at the lower part of the hanging wall on one side.
The linear motion bearing 30 supports a rail 31 on a side surface of the body 4 so as to be able to run thereon, and a roller 33 that runs on a pedestal 32 of the body 4 is attached to the lower surface of the other side. A rack 34 is provided on the upper surface of the pedestal 32 and is engaged with a pinion 35. The pinion 35 can be rotated by a motor 37 via a gear 36. The motor 37 is installed on a mounting base 38 that is integrated with the material feeding table 10. Aircraft 4 has main scale 39
However, the material feeding table 10 is also provided with a vernier measure 40 so that the amount of movement of the material feeding table 10 in the Y-axis direction can be measured. Material feeding table 10
When the lock lever 41 is turned, it is pressed against the fuselage 4 by a well-known mechanism and can be locked so that it cannot be moved. As shown in FIGS. 1 and 2, a support section 42 for receiving a long workpiece is attached to one side of the material feeding table 10. As shown in FIGS. Support part 42
As shown in FIGS. 2 and 3, a base 43 has an appropriate number of rollers 44, 45 supported at appropriate intervals, and one end of the base 43 is fixed to one side of the material feeding table 10. Set up The other side of the base 43 is supported by a pedestal 46 so as to be movable in the Y-axis direction together with the material feeding table 10, with a roller 42a interposed therebetween. The rollers 44 and 45 are a set of one with a long shaft length and one with a short shaft length, and are rotatably supported on the same axis.In particular, the roller 45 with a short shaft length is
It is designed to be convenient for supporting angle materials as workpieces.

In the present invention, as shown in FIG. 1 and FIG.
It is attached. Also in the sizing section 47,
One end of the base 48 is fixed to the other side of the material feeding table 10. The other side of the base 48 is supported by a pedestal 49 so as to be movable in the Y-axis direction together with the material feeding table 10, with rollers 48a interposed therebetween, as shown in FIG. Further, as shown in FIGS. 2 and 7, the base 48 is provided with a roller 50 having a long shaft length and a roller 51 having a short shaft length coaxially as a set, and the rollers 50 and 51 of the set are suitably arranged. A plurality of sets are rotatably supported at intervals. A stopper device A is provided in the sizing section 47. As shown in FIGS. 6 and 7, the stopper device A has a pedestal 52 fixed at an appropriate interval on the rear surface of the base 48, and
A rack 53 is fixed to the rear side of the lower surface of the rack 8. A rail 54 is laid on the pedestal 52 along the longitudinal direction of the base 48. A holder 56 is connected to the rail 54 via two linear motion bearings 55.
is mounted so that it can run freely along the rail 54. Each linear motion bearing 55 grips the rail 54 irremovably and movably. Therefore, the holder 56 is attached to the base 4 by the rail 54 and the linear motion bearing 55.
It is designed to run parallel to 8. A motor 58 is connected to the holder 56 via a motor base 57.
be fixed. The motor 58 is connected to the output shaft 5 shown in FIG.
9 to the gear shaft 61 via the coupling ring 60.
are positioned on one axis and connected. The gear shaft 61 is rotatably supported by a holder 56, and has a pinion 6 that meshes with the rack 53.
It has 2. The gear shaft 61 further extends from the pinion 62 and is connected via a coupling 63 to a rotating shaft 65 of a rotary encoder 64 shown in FIG. rotary encoder 64
is fixed to mounting 066. The mounting plate 66 is fixed to the holder 56 via a spacer 67. Since the output shaft 59 of the motor 58 and the rotating shaft 65 of the rotary encoder 64 are arranged on one axis in this way, the amount of rotation of the motor 58, that is, the amount of feed due to the meshing of the pinion 62 and the rack 53 can be directly transmitted to the rotary encoder 64 for measurement, and as a result, highly accurate positioning control can be performed. Further, as shown in FIG. 7, a height adjustment bolt 68 is interposed between the holder 56 and each linear motion bearing 55 so that the backlash between the pinion 62 and the rack 53 can be adjusted. To adjust the height, loosen the bolt 56a that fixes the holder 56 and the linear motion bearing 55, and then turn the height adjustment bolt 68. Since the tip of the holder 56 is in contact with the linear motion bearing 55, the holder 56 moves vertically with respect to the linear motion bearing 55, and thereby the pinion 62 also moves toward and away from the rack 53, so that the meshing state is maintained. It can be adjusted freely. The bolt 56a is inserted through a long hole in the holder 56 and is screwed into the linear motion bearing 55. The holder 56 further includes a stop arm 69.
is pivoted so that it can swing freely. The stop arm 69 is
The rollers 50, 51 are used to abut the workpiece.
It is designed so that it can be positioned above the A height adjustment bolt 70 is screwed into the stop arm 69,
The tip of the height adjustment bolt 70 is brought into contact with an arm stopper 71 formed on the holder 56 and provided with a cushion material.
When the stop arm 69 is turned, the stop arm 69 swings.
It can be adjusted so that it is arranged parallel to the rollers 50 and 51.

In addition, the above-mentioned fuselage 4 is equipped with a stopper device B for the Y axis.
Attached. The stopper device B has exactly the same structure as the stopper device A, except that a rail 54 and a rack 53 are provided on the body 4 instead of the base 48 in the stopper device A. However, the amount of movement of the arm stopper 80 of the stopper device B, that is, the range in which the positioning for processing can be determined, is smaller than that of the stopper device A.

Next, the sizing method of the processing machine, that is, the method of setting machining dimensions will be explained. First, the case of cutting a long workpiece will be explained. As shown in FIG. 8, after starting at step 1, machining conditions are inputted using the input device 2 at steps 2 and 3. As processing conditions for the above-mentioned cutting, the blade width P and cutting length L are input.
At this time, since the workpiece is simply cut, the Y-axis stopper device B is unnecessary.
Therefore, the Y-axis stopper device B returns the stop arm 80 to a predetermined return position and stops it. Next, in step 4, a target value _X0 for moving and positioning the stopper device A is calculated. That is, 1/2 of the blade width P is determined, and the value of 1/2 of the blade width P is added to the cutting length L to calculate the target value X ₀ . At this time, step 2 above
If 1/2 of the blade width P is input in , there is no need to calculate the value of 1/2 of the blade width P. Therefore, in step 5, the stop arm 6 of the stopper device A is
9 moves from the center of the processing blade 9 to the position of X ₀ =L+1/2·P. The moving position of the stop arm 69 is detected by the rotary encoder 64 and input to the microcomputer in the control box 1. In step 6, the current position of the stop arm 69 thus acquired is compared with the target value _X0 ,
It is determined whether the stop arm 69 has reached the target value _X0 . Steps 5 and 6 are repeated until the stop arm 69 reaches the target value _X0 . When the stop arm 69 reaches the target value X ₀ ,
The movement is stopped at this target value X ₀ , cutting is performed in step 7, and the process is completed in step 8. The cutting process in step 7 is performed only on a predetermined number of pieces. In other words, in advance, in steps 2 and 3, a plurality of lengths to be cut and the number of pieces to be cut are inputted, and in step 9, each time a predetermined number of pieces have been cut at each target value. First, it is determined whether or not all the cutting operations have been completed, and if the cutting operations have not been completed, the process returns to step 4, thereby allowing the stop arm 69 to be sequentially moved to the next target value for processing. In this case, the stop arm 69 is moved to determine the next target value to be machined, using the previous target value as a reference point.

The movement of the stop arm 69 is based on a command from the microcomputer in the control box 1. When the motor 58 is driven, the pinion 62 rotates and the pinion 62 is engaged with the rack 53, so that the holder 56 is moved. It runs along the rail 54. Since the stop arm 69 is attached to the holder 56, the stop arm 69 moves above the rollers 50, 51, the rotary encoder 64 detects the current position of the stop arm 69, and the current value reaches the target value _X0. When this point is reached, the drive of the motor 58 is stopped by a command from the microcomputer. After inserting the workpiece from the support part 42 until it hits the stop arm 69, the workpiece is cut to a preset length with the length of 1/2 of the blade width, which is the cutting margin, corrected. It is severed immediately.

Next, the case of punching as shown in FIG. 9 will be explained. First, as shown in FIG. 10, after the start of step 1, machining conditions are input in step 2 and step 3. As for the machining conditions, in punching machining, there is no need to consider the cutting allowance at all, so input the blade width as zero. And the 11th
As shown in the figure, the machining dimensions in the X-axis direction are written into memories dedicated to the X-axis, to the Y-axis, and to memories dedicated to the number of pieces. In other words, input t ₁ shown in Fig. 9 into one channel of the multiple storage addresses of the memory dedicated to the X-axis, and input t ₅ to one channel of the storage addresses of the memory dedicated to the Y-axis. Then, the position of the first punching hole H ₁ can be determined, and since three holes are to be punched at an interval of t ₂ , the interval t ₂ and the number of holes can be determined in two channels, the X-axis dedicated memory and the number dedicated memory. By inputting 3, the positions of punching holes _H1 to _H3 can be determined. Next, input the interval t ₃ into the 3 channels of the X-axis dedicated memory, and input the interval t ₄ and the number of pieces 3 into the 4 channels of the X-axis dedicated memory and number-only memory, and the positioning of punched holes H ₄ to _{H 6} will be completed. can. Furthermore, there are 5 channels of memory dedicated to the Y axis.
By inputting t ₆ , then inputting the negative value of the above interval - t ₄ into channel 6 of the X-axis memory, and then inputting 3 values into the number-specific memory, the punching holes H ₇ to _{H 9} can be positioned. . Enter an interval of -t ₃ for the 7th channel of the X-axis dedicated memory, and input an interval of -t ₂ and the number of pieces of 3 for the 8th channel of the X-axis dedicated memory and number-only memory.
By inputting , you can position the punching holes H ₁₀ to _{H 12} , and by inputting the end for each of the nine channels, you have input all the punching processing conditions shown in Figure 9, and each punching hole H _{1 -H12} (corresponding to the position of the processing blade 9), the position of the next punching hole to be punched is sequentially determined based on the position of the punched hole. Therefore, the positioning data for the punching positions of each punching hole H ₁ to _{H 12} is based on the upper left corner of the workpiece shown in FIG. It's out. In step 4,
Arithmetic processing is performed to enable movement and positioning of stopper devices A and B based on the above various conditions. Next, in step 5, the stopper devices A and B are first moved according to the contents of one channel, and the current position of the movement is detected by the rotary encoder 64 of each stopper device A and B. In step 6, it is determined whether each stopper device A, B has reached the set position for one channel. Steps 5 and 6 are repeated until the stop devices A, B reach their set positions. When each stopper device A, B reaches the set position, punching is performed in step 7, and after the punching, the process proceeds to step 8. Step 8
It is determined whether the next channel has an end mark or not. If there is no end mark, the setting position of the next channel is searched for in the next step 9, and after calculation processing, the process is performed in steps 5 and 6. The process then proceeds to step 7, where punching is performed in the same manner as above, and punching is performed sequentially according to the data of each channel until the end mark is retrieved.

As mentioned above, by each stopper device A, B,
Various types of processing such as punching can be performed by determining the position of the workpiece to be processed.

The portions of the stop arms 69 and 80 of each of the stopper devices A and B that the workpieces abut against are made strong by hardening or the like.

"Effects of the Invention" As described above, according to the sizing method and device for a processing machine according to the present invention, not only the work efficiency is improved by the numerical control method, but also the sizing method and the device for the processing machine according to the present invention not only improve the work efficiency but also improve Since the cutting length can be set by correcting the length, processing dimensions can be determined with extremely high precision, which is extremely convenient.

[Brief explanation of the drawing]

The drawings show an embodiment of the sizing method and device for a processing machine according to the present invention, in which Fig. 1 is a front view of the processing machine, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a diagram of the processing machine. Figure 4 is a side view of the main body of the processing machine;
FIG. 5 is a configuration diagram showing the rotation mechanism of the rotary table,
FIG. 6 is a bottom view of the stopper device, FIG. 7 is a side view of the stopper device, FIG. 8 is a flowchart when cutting a workpiece, and FIG. 9 is a plan view of a punched workpiece. Figure 10 is a flowchart when punching is performed in Figure 9, and Figure 11 is
The figure is a diagram showing a manner in which machining conditions for performing the punching process shown in FIG. 9 are input. A, B...stopper device, 1...control box, 2...input device, 4...machine body, 8...rotary table, 9...processing blade, 10...material feeding table,
42... Support part, 47... Sizing part, 53... Rack, 54... Rail, 55... Linear motion bearing, 56... Holder, 58... Motor, 62... Pinion, 64... Rotary Encoder, 69, 80...stop arm.

Claims (1)

[Scope of Claims] 1. In a sizing method for a processing machine in which the workpiece is positioned against a stopper device to determine the position for processing, the center of the processing blade is set as the processing origin, and the processing is performed from the processing origin. A sizing method for a processing machine, characterized in that the movement of a stopper device is controlled by determining the position at which the cutting is to be performed. 2. The processing machine according to claim 1, characterized in that when determining the position to be processed, the movement of the stopper device is controlled using a value corrected by incorporating 1/2 of the width of the blade. sizing method. 3. In a sizing device for a processing machine equipped with a stopper device for positioning the processing by abutting the workpiece, the stopper device is movable by a power source;
1. A sizing device for a processing machine, comprising an input device for inputting processing conditions such as processing dimensions, and a processing device for driving a stopper device based on information from the input device. 4 The stopper device moves in the horizontal direction
4. A sizing device for a processing machine according to claim 3, comprising an axis stopper device and a Y-axis stopper device that moves in the vertical direction.