JPH0759329B2 - Control method for steel processing machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for controlling a steel material processing machine, and in particular, selects a metal mold suitable for the type of steel material to be processed, carries it in on a mounting table, and performs processing. The present invention relates to a control method for a steel material processing machine.

"Prior Art" A conventional steel material processing machine of this type has a large number of dies arranged in a circular shape on a turntable, and a supporting member for receiving a steel material on the side of the turntable. Further, a hitting unit for hitting a desired die is provided above the turntable. Then, the turntable is rotated so that the metal mold suitable for the type of steel to be processed is positioned below the hitting section. Various types of dies such as those for cutting steel, those for punching holes, and those for notching in a V shape are installed on a turntable, and the turntable is rotated to obtain a desired die. Is located below the ram. After selecting the desired mold in this manner, the turntable is locked so that it cannot rotate. Next, the steel material to be processed on the support member is fed into the selected die, and the ram is driven to strike the die with the striking part, that is, the movable die is movable with respect to the fixed die of the die. By doing so, desired processing such as perforation is applied to a predetermined portion of the steel material. To change the type of processing on steel, unlock the turntable, rotate the turntable, position the desired mold below the ram, and lock the turntable non-rotatably again. After that, the steel material is processed in the same manner as described above.

[Problems to be Solved by the Invention] However, since the above-described conventional steel material processing machine is one in which a large number of dies are arranged in parallel on the turntable, the shape and other sizes of the shaped steel or the like as the steel material to be processed. There is a problem that is restricted by. For example, not only shaped steel but also flat ones with a wide width may not be able to be processed by contacting other dies on the turntable, and depending on the shape and size of the shaped steel, the dies themselves may not be processed. Since the shape also becomes large and it comes into contact with other dies on the turntable, it often happens that other dies cannot be processed unless they are removed from the turntable. If the work of removing the mold is forced, the workability will decrease.

Therefore, in view of the above circumstances, the present invention has a large number of dies placed side by side on a die pedestal in the vicinity of a mounting table, which is a processing position, and the dies on the die pedestal according to the type of processing. By loading the mold onto the mounting table for processing, it interferes with other molds due to the shape and size of the steel material and interferes with processing, making it difficult to process, and removing the other molds reduces workability. It is an object of the present invention to provide a method for controlling a steel material processing machine which can solve the conventional problems such as the above.

"Means for Solving the Problem" The present invention has been made to achieve the above object, and a die for processing a steel material, and a mounting table capable of carrying in and fixing the die at a predetermined position. , A supporting member arranged on both sides of the mounting table and configured to convey and support a long steel material, and a mold fixed to the mounting table and arranged to face the mounting table for processing the steel material fed into the mounting table. In order to select a predetermined mold from among these molds, the ram that hits the ram and the above-mentioned mounting table are arranged in the vicinity of the ram, and the supporting members are arranged in parallel with each other to accommodate a large number of molds. Reciprocating mold rack, and reciprocating between the mold rack that is detachable from the mold and arranged in parallel and the mounting base described above, and transfer the mold to each predetermined position. In the steel material processing machine consisting of a carry-in / carry-out machine, Selecting means for selecting the fixed mold, calculating means for calculating the distance between the center of the mold selected by this selecting means and the origin, and the mold selected by the selecting means Positioning means for transferring to the delivery position of the machine, carrying-in and carrying-out means for carrying in the selected mold to a predetermined position of the carry-in / carry-out machine and carrying out from the carry-in / carry-out machine to a predetermined position of the mounting table, Positioning control means for moving the steel material on the support member by a predetermined distance to position the machining position of the steel material with respect to the mold, and the machining position of the steel material positioned by the positioning control means by the die by the impact action of the ram. It is composed of a processing control means for processing and a central control processing means for integrally controlling each of these means. After the processing step is completed, the die is transferred by the loading / unloading means of the loading / unloading machine. Is accommodated in a predetermined position of the mold frame is a control method for steel processing machine, characterized in that to wait for the mold to the next process.

[Example] An example of a method for controlling a steel material processing machine according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, eight dies 2a to 2h are arranged in the rear part of the machine body 1, and a hydraulic cylinder 3 and a ram 4 which moves up and down by the hydraulic cylinder 3 are arranged in the front part. And has the above-mentioned mold below the ram 4.
The table 5 is provided so as to surround the table 39, and the table 39 is provided with 2a to 2h.
Supporting members 6 and 7 are provided on both left and right sides of the table 5, and a sizing device 8 is provided on the left supporting member 7.

First, the mechanism of the mold stand 9 on which the molds 2a to 2h are placed will be described. As shown in FIG. 6, brackets 10 and 11 are fixedly provided on the left and right of the rear part of the machine body 1, and the brackets 10 and 11 are fixed. Each of the tips is supported by a supporting leg 12 on the floor. A mold frame 9 is reciprocally mounted on each bracket 10 and 11 in a state where the rear part of the machine body 1 is fitted through the cam followers 13 and 14. The cam follower 13 is a mold stand 9
The lower surface of the mold support 9 is supported, and the cam follower 14 supports the rear edge of the mold stand 9 so as not to be displaced in the front-rear direction. A guide rail 15 is attached to the upper part of the rear surface of the mold stand 9,
A linear way bearing 16 is engaged with the guide rail 15. The linear way bearing 16 is fixed to the machine body 1. A ball screw 18, which is driven to rotate by a motor 17, is rotatably supported on the rear surface of the mold base 9 as shown in FIGS. 6 and 7. The motor 17 is installed on one end of the mold base 9. A ball nut 19 fixed to the machine body 1 is screwed onto the ball screw 18. At the top of the left and right ends of the mold frame 9 has a detection protrusion 20, also keep attached four limit switches LS ₁ ～LS ₄ in fuselage 1. Detecting protrusion 20 and the limit switch LS ₁ ~LS ₄ detects the limit point of the reciprocating movement of the mold frame 9 is for switching to the low-speed movement from fast moving before the Matakiri point. The moving position of the mold frame 9 is detected by a rotary encoder built in the motor 17. As shown in FIG. 7, the upper surface of the mold stand 9 is divided into 8 sections by a partition wall 21, and each section is provided with molds 2a to 2h for performing various processes such as punching and cutting. Place. For example, as the dies 2a to 2h, a flat plate is perforated as shown in FIG. 8 or a V-shaped steel is cut as shown in FIG. 9, depending on the shape and size of the steel material, Various types are adopted depending on the type. In any of the molds 2a to 2h, the mold base 22
It is designed to be installed in. As shown in FIGS. 7 to 9, the mold base 22 slides on rails 23 laid at both ends in each section and is put in and out on the mold stand 9. As shown in FIG. 10, a liner 24 made of a material that easily slides is attached to the bottom surface of the mold base 22 facing the rail 23. When the molds 2a to 2h are placed on each section of the mold base 9, the so-called ball spring mechanism 25 including a piece such as a steel ball provided on the mold base 9 and a spring for elastically urging the piece holds the position. The mold base 22 has a recess 26 on the bottom surface into which the piece of the ball spring mechanism 25 is fitted. Further, the mold base 9 has a pressing piece 27 for pressing the mounted mold base 22. A guide roll 21a for guiding the loading / unloading of the die base 22 is rotatably supported by the partition wall 21. An engaging piece 28 is vertically provided at the front end of the mold base 22. The engaging piece 28 is engageable with a carrying-in / out machine 29 that reciprocates between one section of the mold frame 9 and the mounting table 39 in the machine body 1. The loading / unloading machine 29 is slidable in a U-shaped slide guide 31 having an upper surface opened by a hydraulic cylinder 30 installed on the machine body 1, and a rear end of the case 32 projects upward. Has a piece 33, and the engaging piece 33
Engages with the rear surface of the engagement piece 28 of the mold base 22. A guide rail 38 for guiding the slide of the case 32 is laid on the bottom surface of the slide guide 31. A crank cam 34 is rotatably supported in the case 32, and a piston rod of a hydraulic cylinder 35 is connected to the crank cam 34. The crank cam 34 is adapted to rotate by the operation of the hydraulic cylinder 35 so that it can be engaged with the front surface of the engaging piece 28 so as to project from the case 32. Hydraulic cylinder 35 is the case
Install on the back of 32. On the compatible wall of the slide guide 31, a large number of support rolls 36 that support the mold base 22 when the molds 2a to 2h are carried in and out are rotatably supported. The supporting position of the mold base 22 by each supporting roll 36 is set at the same position as the upper surface of the rail 23 of the mold base 9 or slightly higher. On the upper edge of the slide guide 31, a guide roll 37 for restricting the lateral displacement of the mold base 22 at the time of carrying in and out is rotatably supported. In front of the slide guide 31 of the machine body 1, a table 5 is arranged so as to be movable back and forth. The extension of the slide guide 31 of the machine body 1 is shown in FIG.
As shown in FIG. 11, there is a mounting table 39 on which the mold base 22 is loaded and mounted, and the center part of the mounting table 39 and the mounting table 39.
Has a chip collecting hole 40 between the slide guide 31 and
A scrap box 41 is installed below the scrap collecting hole 40. Clampers 42 and 43 are provided on both sides of the mounting table 39 as shown in FIG. The bottom surface of the engagement portion of the right clamper 42 is a tapered surface that inclines downward from the front end toward the rear. On the other hand, on the right side edge of the mold base 22, there is a meshing portion 22a that is notched in a tapered shape that matches the shape of the meshing portion of the clamper 42. The other clamper 43 has a tapered shape in which both ends of the meshing portion are inclined inward. On the other hand, the clamper 43 is provided on the left side edge of the mold base 22.
The meshing portion 22b corresponds to the shape of. The sub-tables 44 and 45 are bolted to the machine body 1, and the U-shaped clamper plates 46 and 47 are bolted to the sub-tables 44 and 45. The clampers 42 and 45 are clamped in the clamper plates 46 and 47. It is designed to guide the clamp operation of 43. The clampers 42 and 43 are connected to the piston rods of the hydraulic cylinders 48 and 49. The hydraulic cylinders 48, 49 are fixed to the machine body 1. Table 5 above shows the results of FIG. 11, FIG. 13 and FIG.
As shown in Fig. 14, the front part of the machine body 1 is formed into a U-shape in a plane, and two linear way bearings 50 are provided on the right side.
The linear way bearing 50 is mounted on a rail 51 laid on the right side surface of the machine body 1 so that it can travel freely. A traveling roll 52 is rotatably supported on the left side portion of the table 5, and the traveling roll 52 can travel on a sub-rail 53 provided on the left side surface of the machine body 1. A rack 54 is laid on the sub rail 53, and the pinion 55 is attached to the rack 54.
Is engaged. The pinion 55 meshes with a gear 57 that is rotationally driven by a motor 56. The motor 56 is installed on the lower surface of the table 5. The pinion 55 is rotatably supported on the table 5. Also, on the right side of Aircraft 1,
As shown in the figure, a pair of brackets with appropriate spacing
58 is fixed and each bracket 58 as shown in FIG.
A lock shaft 59 is installed between them. A sliding member 60 having a slit provided integrally with the table 5 is attached to the lock shaft 59. The lock screw 61 was fitted into the notched portion of the sliding member 60, the lower end of the lock screw 61 was engaged with the lower surface of the sliding member 60, and the lock screw 61 was provided on the table 5. If you screw it with the nut block 62 and turn the lock screw 61 with the lock handle 63,
By narrowing the slit of 60 and pressing the lock shaft 59 by the sliding member 60, the table 5 can be fixed to the machine body 1 immovably in the longitudinal direction. The left end of the support member 6 is bolted to the right end of the table 5, and the right end of the support member 7 is bolted to the left end of the table 5. The other ends of the respective support members 6 and 7 are supported by the table 5 together with the back-and-forth movement roller 64 as shown in FIGS.
It is placed on 65 and 66. A large number of support rolls 67 for supporting the steel material are rotatably supported on the respective support members 6 and 7. As shown in FIG. 13, a supporting roll for supporting the V-shaped steel, such as a supporting roll 68, can be detachably attached to an appropriate position of each of the supporting members 6 and 7. In this mounting, a mounting shaft is provided at the lower end of the support roll 68, and the mounting shaft is fitted into mounting holes provided at appropriate positions of the supporting members 6 and 7.

The forward and backward movements of the table 5 are restricted by the limit switches LS ₅ and LS ₆ shown in FIG.

As shown in FIG. 16, the sizing device 8 has a rail 74 on the rear surface of the support member 7, and a linear way bearing 76 of a traveling table 75 is mounted on the rail 74 so as to travel freely. Platform
The abutting plate 8a is attached to 75 by being positioned above the supporting roll 67 of the supporting member 7. A motor 77 is installed on the carriage 75, and the motor 77 has a pinion 78 and a rotary encoder 79. The rotary encoder 79 detects the rotation speed of the pinion 78, that is, the position of the contact plate 8a. The motor 77 is numerically controlled so that the contact plate 8a can be accurately positioned. The pinion 78 is meshed with a rack laid on the lower surface of the support member 7.

Then, the mold base 9 is returned to the original position in advance.
The origin position serves as a reference for the movement of the mold stand 9 when selecting a desired mold, and can be set at an arbitrary position, but in the present embodiment, the fourth mold 2d from the left is taken in and out 29. On the mounting table 39
It is set to a position where it can be conveyed upward. If a desired one of the molds 2a to 2h is designated by a separately prepared console, the motor 17 drives the ball screw 18 to rotate, and the ball nut 19 is screwed into the ball screw 18. ,
The mold base 9 moves to the left or right, and the specified mold 2a ~
2h coincides with the position of the loading / unloading machine 29. Then hydraulic cylinder
When 30 is operated, the engagement piece 33 at the rear end of the case 32 engages with the engagement piece 28 of the mold base 22 to push out the mold base 22. The case 32 slides inside the slide guide 31 toward the mounting table 39. On the other hand, the die base 22 moves on the support roll 36 while the lateral displacement of the die base 22 is restricted by the guide roll 37, and the mounting base
Placed on 39. Then, first, the right clamper 42 is operated. In other words, the hydraulic cylinder 48 is operated and the clamper 42 presses the meshing portion 22a of the mold base 22 against the mounting table 39. At this time, since the clamper 42 presses the meshing portion 22a having the same shape with the tapered surface, the left end of the mold base 22 comes into contact with the left side clamper plate 47, and the lateral positioning is performed. Next, the left hydraulic cylinder 49 is operated to cause the clamper 43 to press the meshing portion 22b of the mold base 22 against the mounting table 39. At this time, both ends of the clamper 43 are tapered surfaces, and the meshing portions 22b are also tapered surfaces corresponding to the shape of the clamper 43. Therefore, when the clamper 43 meshes with the meshing portions 22b, The mold base 22 moves in the front-rear direction, whereby the mold 22 is positioned in the front-rear direction. The positioning in the front-back direction can be performed as it is when the die is loaded onto the mounting table 39 by the loading / unloading machine 29. When the die is placed on the placing table 39, the carry-in / out machine 29 is moved back toward the die stand 9. In addition, from the support member 6 through the table 5 to the mold
When the feeding positions of the steel materials to be fed into 2a to 2h and the molds 2a to 2h are deviated, the motor 56 is driven to move the table 5 back and forth by the engagement of the rack 54 and the pinion 55, The molds 2a to 2h and the steel material are aligned with each other. Depending on the type of the steel material and the molds 2a to 2h, the feeding positions may differ from each other, so the above-mentioned alignment is performed at appropriate times. Next, the sizing device 8 is driven to move the contact plate 8a above the support member 7 so that the distance between the contact plate 8a and the molds 2a to 2h on the mounting table 39 as shown in FIG. Position the steel so that it is at the same distance as the position to be processed. Then, after the steel material is fed from the support member 6 into the mold on the mounting table 39, the steel material is exposed to the support member 7 and the tip of the steel material is brought into contact with the contact plate 8a, and then the hydraulic cylinder 3
Is driven to move the ram 4 downward to strike the die on the mounting table 39. Thereby, a predetermined portion of the steel material is perforated or processed such as cutting. When the processing by the mold is completed, the carry-in / out machine 29 again moves back toward the mounting table 39, and then the hydraulic cylinder 35 operates to rotate the crank cam 34 to stand. On the other hand, the hydraulic cylinders 48, 49 are operated to release the fixing of the mold base 22 by the clampers 42, 43. After that, if the case 32 is moved back toward the mold stand 9 by the hydraulic cylinder 30, the crank cam 34 will move to the mold base.
The die base 22 is engaged with the front surface of the engaging piece 28 of the die 22, and the die base 22 moves on the bearing roll 36 as the case 32 returns, and is placed in a predetermined section on the die mount 9. When selecting another die, the movement of the die mount 9 is controlled by setting the position of each die 2a to 2h as the distance from the origin, and the loading / unloading machine 29 directs it toward the mounting table 39. The selected mold is conveyed and the above operation is repeated thereafter.

Next, a method of controlling the steel material processing machine will be described. As shown in FIG. 17, the control of the steel material processing machine is performed by an on-board microcomputer 69. The microcomputer 69 includes a die MDI (for die replacement) button 70, a start (for starting steel material processing) button 71, a die replacement button 72, and a confirmation button.
A button signal from each function button 73 is input to perform a processing operation, and a keyboard 74 is used to input a numerical value such as a die designation. In addition, the microcomputer 69 includes a device for exchanging molds such as the sizing device 8, the mold stand 9 and the carry-in / out machine 29, and a device such as a hydraulic cylinder 3 for processing such as drilling and cutting. It is designed to control the movement.

Then, in order to specify a desired one of the molds 2a to 2h on the mold stand 9, the keyboard 74 is used, and after setting the data, the mold MDI button 70 is pressed. It is possible to specify a plurality of molds according to the processing order.
Next, as shown in FIG. 18, in step 1, the start button 71
When is pressed, it is determined in step 2 whether or not the mold MDI button 70 is pressed. Only when the mold MDI button 70 is pressed,
That is, the process proceeds to step 3 only when the die to be processed next is designated. In step 3, the data relating to the first designated mold inputted in the predetermined data area of the microcomputer 69 is read out. Further, the target value of the designated mold is calculated and obtained from the read mold number (section number of the mold frame 9) of the designated mold. This target value is calculated as the distance from the origin to the center of the designated die (designated section of the die mount 9). The origin is set at the center of the die 2d that is the fourth from the left when the machine body 1 is viewed from the front, that is, the fourth section from the left of the die mount 9. Next, the process proceeds to step 4, and the die base 9 is moved by comparing the target value with the present position of the die. The mold specified by the movement of the mold base 9 is positioned so that it can be engaged with the carry-in / carry-out machine 29, and then the carry-in / carry-out machine 29 is driven by the hydraulic cylinder 30 in step 5, and the specified mold is After being loaded onto the mounting table 39, the setting of the mold is completed.

Next, in order to process the steel material, as shown in FIG. 19, press the start button 71 in step 2, and proceed to step 3,
Of the data previously input into the microcomputer 69, the first data is read out, the moving position (target value) of the sizing device 8 is indexed from the machining position on the steel material, and the sizing is performed at this indexed position in step 4. Position the device 8. Also in this positioning, it goes without saying that the control is performed while comparing the target value of the sizing device 8 with the current position. After that, the steel material is fed into the designated mold as described above, and the end portion of the steel material is brought into contact with the backing plate 8a of the sizing device 8, so that a predetermined portion of the steel material can be machined and positioned with respect to the mold. . Next, if the start button 71 is pressed in step 5, the hydraulic cylinder 3 is driven in step 6 and the ram 4 strikes the specified die to perform punching, cutting, or other processing. This processing is performed by the preset number set in the microcomputer 69 in advance. In step 7, it is judged whether or not processing has been performed by the set number,
If the processing has not been completed, or if another processing data has been input for the same steel material, the process returns to step 2, the start button 71 is pressed again, and the above operation is repeated. When finished, in step 8, the sizing device 8 returns to the origin position which is the reference for movement, and in step 9, whether or not the die needs to be replaced for the next processing, that is, for the next processing. The mold is designated and it is determined whether the mold MDI button 70 is pressed. When the contents of the next processing are set in the microcomputer 69 without exchanging the mold, the process returns to step 2 and the above operation is repeated. If the mold change button 72 is pressed, all the processing up to the above is completed, and if the confirmation button 73 is pressed in step 10, the number of processings set in the microcomputer 69 is checked and all are completed. If not, in step 12, the mold used up to that point is carried out from the placing table 39 by the carry-in / out machine 29, and in step 13, the position (target value) of the specified mold on the mold stand 9 is divided. Then, in step 14, the mold base 9 is moved to position the specified mold on the mold base 9 as described above, and then in step 15, the mold specified by the carry-in / out machine 29 is mounted. The paper is loaded on the table 39, and then the process returns to step 2 to repeat the above operation. In this case step 3
Then, the first data of the next processing pre-input in the microcomputer 69 is read out, the target value of the sizing device 8 is calculated, and the sizing device 8 is positioned at this target value. If the predetermined processing is completed in step 11, the mold used up to that point is carried out from the mounting table 39 in step 16, and the process ends in step 17.

[Advantages of the Invention] As described above, according to the method for controlling the steel material processing machine of the present invention, the mounting table, which is a portion for processing the steel material, and the table for receiving the steel material can be widely spread without being disturbed by other molds. Therefore, it is possible to easily perform processing such as perforation even on a wide and wide steel material. Moreover, since a plurality of types of dies are placed on the die pedestal and made to stand by, and selected according to the type of processing and loaded into the pedestal,
It can be used for various types of processing and is convenient for use.

[Brief description of drawings]

The drawings show one embodiment of a method for controlling a steel material processing machine according to the present invention. FIG. 1 is a front view of the steel material processing machine, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is of FIG. Rear view, FIG. 4 is a left side view of FIG. 1, FIG. 5 is a right side view of FIG. 1, FIG. 6 is a rear view of the main parts showing the structure of the mold stand, and FIG. 7 is the mold stand. , A plan view of the main parts showing the configuration of the carry-in / out machine and the table, FIG. 8 is a right side view of the main parts showing the structure of the carry-in / out machine and the slide guide, and FIG. 9 is a view showing the structure of the crank cam and die base. Part configuration diagram, FIG. 10 is a main part configuration diagram showing a slide guide portion,
FIG. 11 is a configuration diagram of a main part showing a part of the table from a plane.
Fig. 12 shows the structure of the main part of the table from the front.
FIG. 14 is a schematic diagram showing the parts of the table and the ram from the right side, FIG. 14 is a schematic diagram of the essential parts showing the part of the table and the ram from the front, and FIG. 15 is a diagram showing the parts of the table and ram from the left side. Fig. 16 is a block diagram of the main parts of the sizing device.
FIG. 17 is a configuration diagram for carrying out the control method, FIG. 18 is a flow chart showing the loading of the mold onto the mounting table, and FIG. 19 is a flow chart of the entire processing. 1 ... Machine, 2a to 2h ... Mold 4 ... Ram, 5 ... Table 6,7 ... Supporting member, 9 ... Mold stand 28,33 ... Engaging piece, 29 ... Loading / unloading machine 31 …… Slide guide, 36 …… Bearing roll 37,38 …… Guide roll 39 …… Standing table 42,43 …… Clamper

Claims (1)

[Claims] 1. A mold for processing a steel material, a mounting table capable of loading and fixing the mold at a predetermined position, and support members arranged on both sides of the mounting table for conveying and supporting a long steel material. A ram that is arranged to face the mounting table and strikes the loaded and fixed mold for processing the steel material fed into the mounting table; and a supporting member that is disposed in the vicinity of the mounting table. The molds are arranged in parallel, a large number of molds are stored and juxtaposed, and a mold stand that reciprocates to select a predetermined mold from among these molds, and a mold stand that is detachable and parallel. In the steel material processing machine, which is configured to reciprocate between the die mount and the placing stand described above, and perform a transfer operation of the die at each predetermined position, the steel material processing machine is designated from the die mount. Selection means for selecting the mold Calculating means for calculating the distance from the center of the selected die to the origin, positioning means for transferring the die selected by the selecting means to the delivery position of the carry-in / out machine, and the selected die A steel material with respect to the metal mold for moving the die into the predetermined position of the carry-in / out machine and moving the steel material on the support member by a predetermined distance, and the carry-in / out means for carrying out from the carry-in / out machine to the predetermined position of the mounting table. Positioning control means for positioning the machining position, machining control means for machining the machining position of the steel material positioned by the positioning control means by the impact action of the ram by a mold, and a central control unit for centrally controlling each of these means. After the processing step, the mold is stored in a predetermined position of the mold frame by the carry-in / carry-out means of the carry-in / carry-out machine, and the mold is made to stand by until the next processing. Control method for steel processing machine, characterized in that.