JP4971947B2 - Punch press equipped with a tool identification medium reader - Google Patents

Description

  The present invention relates to a punch press provided with a tool identification medium reading device.

  A punch press for drilling a sheet material such as a sheet metal needs to have a large number of punch dies (tools) depending on the shape of the hole. In the turret punch press, a large number of these punch dies are accommodated in upper and lower turrets provided rotatably on a machine frame. Then, by rotating the turret, any one of the plurality of punch dies is selectively supplied to a predetermined processing position. In another type of punch press, the punch die is accommodated in a tool magazine, and an appropriate punch die is selected from the tool magazine and supplied to the processing position.

  In order to manage such a large number of punch dies, a technique has been proposed in which a tool identification medium is attached to the punch dies and this tool identification medium is detected by an appropriate detection device. For example, Japanese Patent Laid-Open No. 63-174733 discloses a technique in which a barcode representing the size and shape of a punch die is attached to the punch head, and this barcode is read by a sensor provided above the turret. . According to this technique, the punch die on the turret can be easily identified.

  Japanese Patent Laid-Open No. 7-164073 memorizes tool information specific to each of the upper tool and the lower tool and tool information for identifying the upper and lower tools as a pair of tools in a punch press provided with a tool changer, A technique is disclosed in which the storage address of the tool magazine of the upper and lower tools is stored corresponding to the tool information, and a desired tool is called up and changed at the time of machining. The tool information includes a tool shape, a size, and a tool clearance. The information unique to the upper and lower tools includes the tool serial number and the manufacturing date. The unique information is taken into an appropriate numerical control unit by marking a barcode on the tool surface and reading the barcode with a reading device.

  However, in the conventional punch press, the punch press program is created regardless of the type of tool stored in the punch press turret or tool magazine, and thus there is a problem that an unnecessary tool preparation procedure is required. there were.

The present invention has been made in view of the above-described problems, and includes a punch support member (22) that supports a plurality of punches (26),
A die support member (24) for supporting a plurality of dies (28) corresponding to the punches;
A punch press with
An identification medium (34, 36) for identifying each tool is attached to each punch and die,
A punch identification medium reading device (38) for reading punch identification information from a punch identification medium attached to the punch, and a die identification medium reading device (38) for reading die identification information from a die identification medium attached to the die 40)
A punch / die pair identification information creating unit (66) for creating punch / die pair identification information by combining the punch identification information from the punch identification medium reader and the die identification information from the die identification medium reader; ,
Before SL punch support member (22), a punch mounted on the die support member (24) (26), die an automatic programming apparatus for creating a numerical control program of the punch press using (28) (78) Punch / die identification information feedback for feeding back the punch / die pair identification information of the punch / die pair identification information creation unit (66) and the tool mounting position information of the punch support member (22) and die support member (24). Means (70);
Range data, shape data, shape subcode data, type data, dimension data in punch identification information and die identification information for each tool mounting position included in the numerical control program created by the automatic programming device (78) The tool information including the seven features of the mounting angle data and the management reference data is sequentially compared with the seven features in the punch identification information / die identification information from the punch / die pair identification information creation unit (66). And a punch / die pair identification information comparison unit (68).

  According to this configuration, the NC program can be created using only the punch and die mounted on the punch press based on the feedback signal. Therefore, the setup for tool change can be minimized.

  According to this method, the setup for tool replacement can be minimized.

  A third feature of the present invention is a processing intention data for specifying a processing area that needs to be processed to manufacture a product based on product shape data, using a numerically controlled punch press processing program creation device. Is a processing program creation device for a punch press that includes a processing intention data creation unit that creates a tool and a tool determination unit that determines a punch and a die to be used for machining the processing region based on the processing intention data. .

  According to this apparatus, an NC program can be created using only a punch and die mounted on a punch press. Therefore, the setup for tool change can be minimized.

  As described above, according to the present invention, an NC program can be created using only the punch and die mounted on the punch press based on the feedback signal. Therefore, the setup for tool change can be minimized.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a front view of the turret punch press of this embodiment. As shown in FIG. 1, a disc-shaped upper turret (punch support member) 22 and lower turret (die support member) 24 are rotatably provided on a frame 20 of a turret punch press. A large number of punches (punch assemblies) 26 are mounted on the circumference of the upper turret 22 so as to be movable up and down with respect to the upper turret 22. Similarly, dies 28 corresponding to the punches are mounted on the circumference of the lower turret 24. A striker 30 for hitting a punch positioned at the predetermined position is provided at a predetermined position of the frame 20 so as to be movable up and down. Further, a sheet metal positioning device for moving the sheet metal (workpiece) W in the horizontal plane and positioning it between the punch 26 and the die 28 is provided. Accordingly, the turrets 22 and 24 are appropriately rotated to position the desired punch dies 26 and 28 below the striker 30, and the workpiece positioning device 32 is appropriately moved to place the desired position of the workpiece on the punch. -After positioning between dies, by hitting a punch with the striker 30, a desired drilling process can be performed at a desired location of the workpiece.

  The turret punch press is provided with a punch press NC device 33 for numerically controlling the turret punch press.

FIG. 2 is a view showing in more detail how the punch 26 and the die 28 are mounted on the upper turret 22 and the lower turret 24. That is, the punch guide 48 is provided in the punch set hole 22a of the upper turret 22 so as to be movable up and down. An outer flange 48 a is formed at the upper end of the punch punch guide, and a lifter spring 23 is provided between the outer flange 48 a and the upper turret 22. Therefore, the entire punch 26 is normally held at a predetermined height position with respect to the upper turret 22. A punch body 46 is inserted into the punch guide 48 so as to be movable up and down, and a punch blade 46 c is formed at the lower end of the punch body 46. A punch head 50 is provided at the upper end of the punch body, and a strong stripper spring 25 is provided between the outer flange 48 a at the upper end of the punch guide and the punch head 50. With this stripper spring 25, after punching, the punch blade is pulled out from the die 28 and the workpiece. The die 28 has a punch hole (through hole) 26 c that engages with the punch blade 46 c and is inserted and set in the die set hole 24 a of the lower turret 24.

  A punch identification medium and a die identification medium for identifying the punch / die from other punch dies are attached to the punch 26 and the die 28. 3 to 9 are explanatory views for explaining a mode in which the punch identification medium 34 and the die identification medium 36 are attached to the punch 26 and the die 28. FIG. More specifically, as shown in FIG. 3, a chamfered portion 46a is formed in the body portion of the punch body 46, and a punch body identification medium 46b is attached to the chamfered portion. The chamfered portion 46a may be chamfered linearly as shown in FIG. 4A, partially chamfered as shown in FIG. 4B, or circular over the entire circumference as shown in FIG. 4C. It may be chamfered in an arc shape. By attaching the punch body identification medium 46b to the chamfered surface in this manner, the identification medium 46b does not rub against the inner periphery of the punch set hole 22a of the turret 22, and the life of the identification medium 46b can be extended. .

  As shown in FIG. 5, the punch identification medium 34 is attached to the upper collar portion (outer flange) 48 a of the punch guide 48. The punch identification medium 34 can be attached to the side surface of the punch head 50 as shown in FIG. Further, as shown in FIG. 6, the punch identification medium 34 can be attached to the outer peripheral portion of the punch guide 48. When the punch identification medium 34 is attached to the outer peripheral portion, it is preferable to form a chamfered portion as shown in FIG. 4 on the outer peripheral portion and attach the punch identification medium 34 to the chamfered portion. By forming the chamfered portion on the outer peripheral portion, a relatively wide identification medium attachment range can be secured, and therefore a relatively complicated identification medium can be attached. The punch identification medium 34 can also be attached to the top of the punch head 50 as shown in FIG.

  Further, as shown in FIG. 5, it is preferable that a through hole 48b is formed on the outer periphery of the punch guide 48 at a position corresponding to the punch body identification medium 46b when the punch body 46 is inserted into the punch guide 48. . Thereby, even after the punch body 46 is inserted into the punch guide 46, the punch body identification medium 46b attached to the punch body 46 can be confirmed from the outside. This produces the following benefits. That is, when a plurality of punch body / stripper plates are exchanged for one punch guide, the punch body / stripper plate is not uniquely determined only from the shape of the punch guide. However, by reading the identification medium 46b of the punch body 46 from the through hole 48b, the punch body / stripper plate can be identified while being mounted on the punch guide.

  8 and 9 show a mode in which a die identification medium is attached to the die 28. FIG. In the embodiment shown in FIG. 8, a chamfered portion 28a is formed on the outer peripheral surface of the die 28, and a die identification medium 36 is attached to the chamfered portion 28a. In the embodiment shown in FIG. 9, the die identification medium 36 is attached to the tapered portion 28 b at the upper end portion of the die 28.

  The punch identification medium 34 and the die identification medium 36 include, for example, a bar code, a two-dimensional code (VERI code, PDF417 code, QR code), an ID tag, an IC chip, and a marker.

  The means for reading the identification medium is preferably an infrared device or a laser beam device when the identification media 34 and 36 are barcodes, but may be a camera or the like.

  When the punch dies 26 and 28 are set in the predetermined setting holes 22a and 24a on the turrets 22 and 24, for example, the punch identification medium 34 is first read by an appropriate portable reading means (not shown). The punch 26 is set on the upper turret 22. Next, the identification medium of the die 28 is read. At this time, if the information from the punch identification medium 34 matches or does not match, an error signal is output. If the punch identification information from the punch identification medium 34 and the die identification information from the die identification medium 36 match or match, the positional information (station information) of the set holes 22a and 24a on the turret and the punch identification information / die The identification information is stored as a set of data in the memory of the punch press NC device.

  Further, when a plurality of punch bodies and stripper plates are exchanged for one punch guide, the identification medium on the punch guide 48 and the identification medium on the punch body 46 are read, and the inside of the NC device is read. It can be stored as a set of data. Thereby, the punch body of the punch to be used can be searched from the punch guide data.

  FIG. 10 is a block diagram of the turret punch press system. This system includes first and second turret punch presses 52 equipped with a tool identification medium reading device, first and second NC devices 54 for punch control that numerically control these, a tool storage device 56, and a tool storage device. NC device 58 and a central control device 60 that collectively controls the turret punch press and the tool storage device. Since the first and second turret punch presses 52 and the first and second punch press NC apparatuses have substantially the same configuration, the first turret punch press and the first punch press NC apparatus will be described below. I will explain only.

  As shown in FIG. 10, the first turret punch press 52 is provided with an upper turret 22 and a lower turret 24 in a rotatable manner, similarly to the turret punch press of FIG. A punch 26 and a die 28 are mounted on the upper turret 22 and the lower turret 24, respectively. A punch identification medium 34 and a die identification medium 36 for identifying the punch and die are attached to the punch 26 and die 28 (see FIGS. 3 to 9). The punch identification medium 34 and the die identification medium 36 are attached to the outer circumferences of the punch 26 and the die 28 at four positions at equal intervals (FIG. 10 shows only one of the four positions). . In FIG. 10, the identification medium 34 of the punch 26 is attached to the punch head 50 as shown in FIG. 5, and the identification medium 36 of the die 28 is attached to the die taper portion 28b as shown in FIG.

  Examples of punch identification information included in the punch identification medium 34 include the following.

Range (tool diameter, punch guide diameter)
Shape (Circle, Corner, Long Circle, Long Angle, Double D, Single D, Center Punch, Burring, Triangle, Special Type, Tapping, Molding, Stamping, Corner Radius, Long Angle with R, etc.)
Shape subcode (for triangle shape: isosceles triangle, right triangle, etc .; for long angle: slotting, normal)
Type (Presence / absence of air blow (see Actual Fairness 4-15377), etc.)
Dimensions (X, Y, R)
Mounting angle (represents the angle when installed)
Management number (Punch individual identification number)
Examples of the die identification information included in the die identification medium 36 include the following.

Range (hole diameter, die outer diameter)
Shape (Circle, Corner, Long Circle, Long Angle, Double D, Single D, Center Punch, Burring, Triangle, Special Type, Tapping, Molding, Stamping, Corner Radius, Long Angle with R, etc.)
Shape subcode (for triangle shape: isosceles triangle, right triangle, etc .; for long angle: slotting, normal)
Type (with or without air blow, etc.)
Dimensions (X, Y, R)
Mounting angle (represents the angle when installed)
Control number (die identification number)
In the identification information, the “angle” has a different value for each position provided on the outer periphery of the punch 26 and the die 28. For example, in the case of a die identification medium, four identification media 36a, 36b, 36c, 36d are attached as shown in FIG. 11, and the angle value of each identification medium is 0 ° with respect to the key 56 of the die 28, respectively. , 90 °, 180 °, and 270 °.

  In this specification, the punch and die are collectively referred to as a tool, and the punch identification medium 34 and the die identification medium 36 are sometimes collectively referred to as a tool identification medium.

  Next to the upper turret 22 and the lower turret 24 of the turret punch press, a punch identification medium reader 38 for reading punch identification information from the punch identification medium 34 and a die identification information from the die identification medium 36 (When the identification mediums 34 and 36 include information on the punch attachment angle and the angle position of the die attachment angle, each identification medium is a punch angle position identification medium.) These are called a die angle position identification medium identification device, and each reading device is called a punch angle position reading device and a die angle position reading device). According to the reading devices 38 and 40, the tool identification information of all punches 26 and dies 28 on each turret can be read by rotating the upper turret 22 and the lower turret 24.

  The reading devices 38 and 40 are configured to be movable in the radial direction of the turrets 22 and 24. In order to move each reading device in the radial direction, each reading device 38, 40 is provided with reading device moving means 42, 44. Therefore, according to this reader, for example, as shown in FIG. 12, even when the punch 22 (or die 24) is mounted on three tracks on the turret 22 (or 24), the punch positioned inside the turret The tool identification information can be read easily by approaching the tool identification medium 22 (or die 24). The reading device moving means 42 and 44 move the reading devices 38 and 40 by a signal from the machine control unit 54.

  As shown in FIG. 13, the first punch press NC device 54 includes a punch identification information storage unit 62, a die identification information storage unit 64, a punch / die pair identification information creation unit 66, and a punch / die pair identification information comparison. A unit 68 and a punch / die pair identification information feedback unit 70 are provided.

  According to the above configuration, the punch identification information and the die identification information from the punch identification medium reader 38 and the die identification medium reader 40 are transmitted via the punch identification information storage unit 62 and the die identification information storage unit 64. It is supplied to the identification information creation unit 66.

In addition to the punch identification information and die identification information, turret rotation position information from an encoder 74 provided in the turret driving unit 72 of the first turret punch press 52 is input to the punch / die pair identification information creating unit 66. Yes. Therefore, the creation unit 66 arranges punch identification information and die identification information for each tool mounting position (tool station) on each turret based on these pieces of information. Create identification information.

  The punch / die pair identification information creating unit 66 calculates a clearance value corresponding to the difference between the punch bottom dimension and the die hole dimension based on the punch identification information / die identification information. Therefore, although not shown in the above table, the clearance value is also included in each punch mounting position in the punch / die pair identification information.

  The creation unit 66 can also store the created information, and is also referred to as punch / die pair identification information storage means.

The punch / die pair identification information comparing unit 68 is provided with punch / die pair identification information from the punch / die pair identification information creating unit 66 and an NC program from the central controller 60. This NC program has the contents shown in Table 2.

  Here, lines indicated by UT / T101, UT / T102, etc. represent a list of tools used in this NC program, and lines indicated by G92, G50, etc. represent machining programs. More specifically, in the line indicating the tool list, UT / T101 and UT / T102 indicate that the tool mounting position of the upper tool (ie, punch) is T101 and T102, and SH1 and SH4 are the positions of the mounting positions. The tool shape represents SH1, SH4, SZ1, SZ4 represents the tool dimension is SZ1, SZ4, CL = 0.2, CL = 0.2, the punch-die clearance is 0.2 A = 0 and A = 45 indicate that the mounting angle of the tool is 0 and 45, respectively. The die used is expressed by the punch shape, dimensions, mounting angle, and clearance with the punch.

  That is, the NC program includes a tool list used in this machining together with the machining program. Therefore, the punch / die pair identification information comparison unit 68 compares the punch identification information / die identification information from the punch / die pair identification information creation unit 66 with each other and includes these identification information in the NC program. Compare with the tool information. For example, for each tool mounting position T, the shape data in the punch identification information, the shape data in the die identification information, and the tool shape data in the NC program are compared. Determine whether. This comparison is sequentially performed for all of the above-described seven features (range, shape, shape subcode, type, dimension, mounting angle, and management number). If a mismatch is detected during the comparison, the mismatch is displayed on the CRT 76 provided in the NC device 54.

When the three data for the seven features all match, the clearance value in the punch / die pair identification information is further compared with the clearance value in the NC program. If the clearance values do not match, the fact is displayed on the CRT as described above. The coincidence of the clearance values can be determined by the following conditional expression. That is, the punch dimension (the dimension of the blade at the lower end of the punch) and the die dimension (the dimension of the die hole) in the punch / die pair identification information are Xp and Xd, the clearance value in the NC program is c, and the allowable value is δ. When Xp and Xd are
Xp + c−δ ≦ Xd ≦ Xp + c + δ
When the condition is satisfied, the clearance value in the punch / die pair identification information matches the clearance value in the NC program.

  The comparison unit 68 is referred to as a corner position comparison unit, particularly when comparing the attachment angles of the punch and the die.

  The punch / die pair identification information feedback unit 70 feeds back the punch / die pair identification information created by the punch die pair identification information creation unit 66 to the central controller 60. More specifically, the punch / die pair identification information is fed back to an automatic program creation device and a central management device provided in the central control device 60 described later. It should be noted that the punch identification included in the punch / die pair identification information from the punch / die pair identification information creating unit 66 is between the punch / die pair identification information creating unit 66 and the punch / die pair identification information feedback unit 70. It is also possible to provide a punch / die identification information comparison unit that compares the information and the contents of the die identification information and confirms whether the contents match. If there is a discrepancy, this is displayed on the CRT 76.

  FIG. 14 is a block diagram showing the configuration of the central controller 60. The central control device 60 includes an automatic program creation device (automatic programming device) 78 and a central management device 80.

  The automatic program creation device 78 receives the punch / die pair identification information from the punch / die pair identification information feedback section 70. Based on the punch / die pair identification information, the tools (punch / dies) mounted on the turrets 22 and 24 of the turret punch press 52 are recognized, and the tools mounted on the turrets 22 and 24 can be formed. Create NC programs using as long as possible. For example, in the case of manufacturing the product W shown in FIG. 15, a case where a 30 × 20 hole H1 is drilled is considered (the unit of dimensions is mm, and the same applies hereinafter). This drilling is usually performed by a punching process (nibbling process) using a punch having a square blade shape having a side smaller than the size of the hole and a die having a corresponding die hole. According to the request, from the request to shorten the tact time, the request to improve the flatness of the finished surface, etc., select a punch having a square blade shape having as large a side as possible and a die having a die hole corresponding thereto Was. However, in this case, if the selected punch and die are not mounted on the turrets 22 and 24, a tool change setup occurs and a machining loss time occurs. Therefore, in the automatic program creation device according to the present invention, when creating the program for machining the hole H1, it is already mounted on the turrets 22 and 24 even if the tact time and the flatness of the finished surface are sacrificed to some extent. Select a punch die. For example, a 10 × 10 square tool and a 15 × 15 square tool can be considered as the tools for machining the hole H1, and the former is mounted on the turret but the latter is not mounted on the turret. From the viewpoint of smoothness, a 15 × 15 square tool is preferable, but a 10 × 10 square tool is selected.

  Similarly, tools (punch dies) mounted on the turrets 22 and 24 for processing the holes H2 and H3 are selected.

The central management device 80 includes a first punch press NC device 54 that controls the first turret punch press 52, a second punch press NC device 55 that controls the second turret punch press 53, and a tool storage device 56. The tool storage device NC device 58 for controlling the tool is collectively managed.

  As described above, the central management device 80 receives the punch / die pair identification information from the punch / die pair identification information feedback section 70 and stores it in the storage section. The feedback unit 70 is also provided in the NC device 55 for the second punch press and the NC device 58 for the tool storage device. Therefore, the central management device 80 receives and stores punch / die pair identification information from each feedback unit 70, so that all of the first turret punch press 52, second turret punch press 53, and tool storage device 56 are stored. The position of the loaded or stored tool can be managed. This management information is supplied to the automatic programming device 78. Based on this management information, the automatic programming device 78, for example, when creating a NC program for the first punch press 52 must use a tool that is not mounted on the first punch press 52. It is displayed on the CRT or the like which station of the second punch press is mounted on, or in which storage position of the tool storage device the replacement tool is stored.

  FIG. 16 is a flowchart for explaining the overall operation of the turret punch press system. Referring to FIG. 16, in step s 1, identification media attached to all punch dies mounted on the first and second turret punch presses 52 and 53 are read by the reading means 38 and 40, The identification medium attached to all punch dies stored in the tool storage device 56 is read by the same device as the reading means 38 and 40, and all punch / die identification information is stored in the central management device 80. Is stored in the storage unit. In step s1, the die body identification medium 46b attached to the die body 46 shown in FIG. 3 can be read. In this case, it is desirable to read the identification medium 46b by a portable reading means (not shown).

In step s 2, it is determined whether or not a list of tools (punch dies) mounted on the first turret punch press is displayed on the CRT screen of the automatic programming device 78. When displaying, the process proceeds to step s3, and the tool list is displayed on the CRT screen. After completing the tool display, the process proceeds to step s4. If it is determined in step s2 that the tool list is not displayed, the process proceeds directly to step s4.

  In step s4, the automatic programming device 78 creates an NC program for the first turret punch press, for example. At this time, if the tool list in step s3 is displayed, an NC program is created while referring to the display of the tool list. In this case, an NC program is created by selecting as many tools as possible mounted on the first turret punch press 52. Thereby, the man-hour of the tool exchange after NC program creation can be minimized. If the tool list is not displayed, an NC program is created independently of the mounted tool on the first punch press.

  In step s5, it is determined whether or not at least one punch die that is not mounted on the first turret punch press is selected when the NC program is created in step 4, and if yes, step s6 is determined. Proceed to In step s6, the tool identification information of the tool Tx not mounted (attached) to the first turret punch press with the tool selected at the time of creating the NC program is displayed.

  In step 7, it is determined whether or not the tool Tx is searched. If yes, the process proceeds to step s8. In step s8, the mounting or storing location of the tool Tx is searched based on the punch / die identification information stored in the step s1, and the search result is displayed on a screen such as a CRT.

  In step s9, based on the display on the CRT screen, the tool Tx is taken out from the mounting or storage location, mounted on the turrets 22 and 24 of the first turret punch press, and the process proceeds to step s10.

  If the tool Tx is not searched in step s7, the process proceeds to step s9, where the tool Tx is taken out from a predetermined mounting / storage location based on the memory of the operator and the turret 22 of the first turret punch press, 24 and proceed to step s10.

  If no in step s5, the process proceeds directly to step s10.

  In step s10, the punch / die pair identification information comparison unit 68 of the first punch press NC device 54, based on the NC program, identifies the punch / die identification information on the first turret punch press 52, and the NC Check if the tool information on the program matches. This confirmation is particularly important when an NC program is created using a tool that is not mounted on the turret punch press 52.

  That is, in this case, the tool is manually changed in step s9, and an erroneous tool (punch / die) may be mounted on the turrets 22 and 24 during the tool change. When it is confirmed in step s10 that the punch / die identification information on the punch press 52 matches the tool information on the NC program, in step s11, the first turret punch press 52 performs drilling, and step s12. End the whole operation with.

    FIG. 17 is a block diagram of a second embodiment of the first punch press NC device 54 and the central control device 60 of FIG. The first punch press NC device 54 and the central control device 60 according to this embodiment, based on the product shape data, create a machining intention data creation unit that creates machining intention data for determining a machining area that requires machining on a workpiece ( A machining intention data generation unit) and a tool selection unit that selects a tool for machining the machining region based on the machining intention data.

  More specifically, the automatic programming device 78 includes an input unit 82, a shape data generation unit 84, a design intention data addition unit 86, a shape / feature data addition unit 88, and a machining intention data generation unit 90. ing.

  The shape data generation unit 84 generates product shape data based on image data input via the input unit 82. This shape data is simply a collection of geometric elements (points, straight lines, circles, arcs, etc.). For example, in the case of the product shown in FIG. 15, as shown in FIG. 18, the shape data is composed of data of straight lines L1-L13, data of arc C1, and data of circle C2. Here, for example, the straight line data is composed of the coordinates (x1, y1) and (x2, y2) of the both ends of the straight line, and the arc data is the center coordinates (x0, y0), the radius R, and the start of the arc. It consists of an angle θ1 and a terminal angle θ2.

In the design intent data adding unit 86, when the shape data is input from the shape data generating unit 84, the design intent data is added to the shape data by the operation of the operator. This design intention data expresses what intention of the designer is included in each geometric element when the shape data is viewed as a sheet metal design drawing. For example, in the case of the product shown in FIGS. 15 and 18, the design intent data includes the following data. That is,
Data that the loop consisting of the straight lines L1-L6 defines the outer shape Data that the loop consisting of the straight lines L9-L12 defines the shaped hole Data that the circle C2 defines the shaped hole From the straight lines L7, L8 and the arc C1 Data indicating that the loop formed defines a deformed hole Data indicating that the straight line L13 defines a bend line The data 1-5 is also created by the operator inputting the meaning of each loop or straight line from the input unit 82. Can also be generated automatically.

In the shape feature data adding unit 88, when data is inputted from the design intention data adding unit 86, shape feature data is further added based on this data by an operator's operation. This shape feature data represents the feature of the shape when viewed from the viewpoint of actually drilling. In the case of the example shown in FIG. 18, the shape feature data includes the following data. That is,
Data indicating that the outer portions of the straight lines L1, L2, L3, and L6 are to be drilled with straight lines. The corners A1 of the straight lines L1 and L2, the corners A2 of the straight lines L2 and L3, the corners A3 of the straight lines L3 and L4, the straight line L4 Data indicating that a joint is formed at the corner A4 of L5 and the corner A5 of the straight lines L5 and L6 (Here, the joint is a complete drilling of the outside of the outer loop formed by the straight lines L1-L6. Then, in view of the fact that the product is cut off from the base material and it becomes difficult to carry out the product from the turret punch press, when the hole is cut with only the corner portion left, the product remains on the corner portion and the product is removed. This refers to the part that is combined with the base material).

Data indicating that the inner side of the loop consisting of the straight lines L9 to L12 is to be processed into a square hole Data indicating that the inner side of the circle C2 is to be processed into a round hole Data indicating that the inner side of the loop including the straight lines L7 and L8 and the arc C1 is to be processed into a deformed hole The data 1-5 are also created when the operator inputs a feature related to each part from the input unit 82 every time the part is designated, but can also be automatically generated.

  The machining intention data generation unit 90 generates “machining intention data” based on data from the shape feature data adding unit by an operator's operation. “Machining intention data” is data immediately before creation of a predetermined NC program, and is data for which no tool is designated. In the case of the examples of FIGS. 15 and 18, the processing intention data is as follows (see FIG. 19).

Region R1:
Processing intention: Wire assignment (peripheral cutting)
Machining pattern: overtaking position / range / extraction direction:
Overtaking start position = a point moved from the point A5 on the straight line L1 by the joint amount W in the direction of the point A1,
Overtaking end position = a point moved from the point A1 on the straight line L1 by the joint amount W in the direction of the point A5,
Overtake width = 5 mm or more and 10 mm or less Processing order: After hole processing Region R2:
Processing intention: Wire assignment (peripheral cutting)
Machining pattern: overtaking position / range / extraction direction:
Overtaking start position = a point moved from the point A1 on the straight line L2 by the joint amount in the direction of the point A2,
Overtaking end position = a point moved from the point A2 on the straight line L2 by the joint amount in the direction of the point A1,
Overtake width = 5 mm or more and 10 mm or less Processing order: After hole processing Region R3:
Processing intention: Wire assignment (peripheral cutting)
Machining pattern: overtaking position / range / extraction direction:
Overtaking start position = a point moved from the point A2 on the straight line L3 by the joint amount in the direction of the point A3,
Overtaking end position = a point moved from the point A3 on the straight line L3 by the joint amount in the direction of the point A2,
Overtaking width = 5 mm or more and 10 mm or less Processing order: After hole processing Region R4:
Machining intention: Corner L machining Machining pattern: One side crushing Position / Range / Punching direction:
One-way squeezing start position = the point moved from the point A3 of the corner L by the joint amount in the direction of the point A5 (consisting of the lines L4 and L5) is the x coordinate, and the joint amount from the point A4 of the corner L to the point A5 A point where the y-coordinate is a point that has been moved only by one direction.
Extraction direction: Direction from point A3 on corner L to point A5 Processing order: After drilling Region R5:
Processing intention: Wire assignment (peripheral cutting)
Machining pattern: overtaking position / range / extraction direction:
Overtaking start position = a point moved from the point A4 on the straight line L6 by the joint amount in the direction of the point A5,
Overtaking end position = a point moved from the point A5 on the straight line L6 by the joint amount in the direction of the point A4,
Overtaking width = 5 mm or more and 10 mm or less Processing order: After hole processing Region R6:
Machining intention: odd hole Machining pattern: Fan-shaped single punch Tool designation: No. 1
Position / Range / Pull direction:
Single punching reference position = point P7 on irregular hole
Machining order: ahead of outline Region R7:
Machining intent: Round hole Machining pattern: Single shot or chrysanthemum shape with one type of tool Position, range, direction:
Center position = Center point of the circle of the round hole Range = Inside of the circle equal to the radius of the round hole Punching direction = Inside of the circle to outside Processing order: Region beyond the outline R8:
Machining intention: Square hole Machining pattern: Single punching or single row punching or folding back Crushing Position / Range / Punching direction:
Single punching reference position = point at the center of the rectangle Single punching size = inner side of the rectangle with the square hole-shaped point A11 and the point A13 as diagonal lines One row, folding punching start position = point A11 on the square hole
End of line, turn-up crushing end position = point A13 on the square hole
Cutting direction = direction from point A11 to point A10 on the square hole Machining order: ahead of the outer shape As understood from the above, regarding the machining of the region 6, the tool is designated by the tool designation from the input unit 82. However, no tool is specified for machining other areas.

  According to the automatic programming device having the above-described configuration, the tool is almost designated from the shape data immediately before creating an NC program for manufacturing a product of this shape by drilling. No “processing intention data” can be created.

  In addition to the punch identification information storage unit 62, the die identification information storage unit 64, the punch / die pair identification information creation unit 66, and the punch / die pair identification information comparison unit 68, the first punch press NC device 54 includes: An NC program creation unit 100 including a tool data addition unit (tool selection unit) 96 and a machining locus data addition unit (machining locus determination unit) 98 is provided.

  More specifically, in the tool data adding unit 96, when processing intention data is input from the processing intention data generation unit 90 via the central management device 80, information from the punch / die pair identification information generation unit 66 and With reference to the precautions for using the tool stored in advance in the tool data adding unit 96 itself, appropriate tools (punch / die pairs) are stored in the machining regions R1 to R6 and R8 in the machining intention data. (That is, an appropriate tool is selected and assigned to each of the machining regions R1 to R6 and R8). At that time, it is preferable to select a tool mounted on the turrets 22 and 24 of the first punch press 52 as much as possible. Further, in the circular hole machining of R7, a tool that can be machined with a single punch without the need for nibbling is preferable so that the finish is beautiful. Furthermore, in overtaking and crushing in R1-R5 and R8, a tool with a size as large as possible is selected so as to reduce the time required for processing, while the cutting dimension in the final punching process becomes too small and the single load is reduced. The tool is selected in consideration of the fact that it does not occur. In addition, although not shown, it is also possible to select a new tool so that the finish is beautiful by referring to the use count data of each tool stored in advance. Or, conversely, in order to reduce tool management man-hours, it is possible to use a tool that is frequently used first, and to use up such a tool.

  When the data from the tool data adding unit 96 is input to the machining locus data adding unit 98, machining locus data is added by the operation of the operator. The machining trajectory data is data that specifies a machining trajectory when there are a plurality of types of machining trajectories as shown in FIGS. 20A and 20B in the regions R4, R8, and the like.

  The NC program creating unit 100 finally creates the first turret punch press NC program based on the data in the machining locus data adding unit 98.

  FIG. 21 is a flowchart for explaining a procedure for creating a first turret punch press NC program in the turret punch press system including the automatic programming device / punch press NC device of the second embodiment. That is, shape data is generated in step s30, design intention data is added in step s31, shape feature data is added in step s32, processing intention data is generated in step s33, and processing regions R1 to R6, Tool data is added to R8 (that is, a tool is selected and assigned to each machining region R1 to R6, R8). In step s34, as in the case of the embodiment shown in FIG. 16, the tools already mounted on the turrets 22 and 24 of the first turret punch press 52 are selected as much as possible. When a tool not attached to the turret of the first turret punch press 52 is selected, the identification number of the tool is stored.

  Subsequently, in step s35, tool path data is added to the squeezing process area, and an NC program is created in step s36.

  In step s37, it is determined whether or not at least one tool not mounted (mounted) on the first turret punch press is selected when adding the tool data in step 34, and at least one tool not mounted is selected. If so, the process proceeds to step s38. In step s38, the identification number and the like of the selected tool that is not mounted on the first punch press is displayed. In step 39, the storage location of the tool is searched in the same manner as in steps s7 to s8 in FIG. 16 (note that the information on the storage location of the tool is previously stored in the NC unit 54 or the center in the same manner as in step s1 in FIG. The tool is taken out from the search location (stored in the management device 80), and the taken out tool is mounted on the first turret punch press. In step 40, the NC program creation is terminated.

  If NO at step 37, the process immediately proceeds to step 40 and the NC program creation is terminated.

It is explanatory drawing of the turret punch press with which the Example of this invention is applied. FIG. 2 illustrates an aspect in which punch dies are mounted on upper and lower turrets of the turret punch press. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is explanatory drawing explaining the aspect which attaches a punch identification medium and a die identification medium to a punch die. It is a block diagram of a turret punch press system. It is the schematic which shows the aspect which attaches an identification medium to four places of the outer periphery of a punch or die | dye. It is the schematic showing the aspect by which a punch or die | dye is mounted by 3 tracks on a turret. It is a detailed block diagram of NC apparatus for punch presses. It is a detailed block diagram of a central controller. It is the schematic of an example of a product. It is a flowchart which shows operation | movement of the system of FIG. It is a detailed block diagram of 2nd Example of NC apparatus for punch presses in FIG. 10, and a central control apparatus. It is explanatory drawing for demonstrating operation | movement of each part in the apparatus of FIG. It is explanatory drawing for demonstrating operation | movement of each part in the apparatus of FIG. It is explanatory drawing for demonstrating operation | movement of each part in the apparatus of FIG. It is a flowchart which shows operation | movement of the apparatus of FIG.

Claims (6)

A punch support member (22) for supporting a plurality of punches (26);
A die support member (24) for supporting a plurality of dies (28) corresponding to the punches;
A punch press with
An identification medium (34, 36) for identifying each tool is attached to each punch and die,
A punch identification medium reading device (38) for reading punch identification information from a punch identification medium attached to the punch, and a die identification medium reading device (38) for reading die identification information from a die identification medium attached to the die 40)
A punch / die pair identification information creating unit (66) for creating punch / die pair identification information by combining the punch identification information from the punch identification medium reader and the die identification information from the die identification medium reader; ,
Before SL punch support member (22), a punch mounted on the die support member (24) (26), die an automatic programming apparatus for creating a numerical control program of the punch press using (28) (78) Punch / die identification information feedback for feeding back the punch / die pair identification information of the punch / die pair identification information creation unit (66) and the tool mounting position information of the punch support member (22) and die support member (24). Means (70);
Range data, shape data, shape subcode data, type data, dimension data in punch identification information and die identification information for each tool mounting position included in the numerical control program created by the automatic programming device (78) The tool information including the seven features of the mounting angle data and the management reference data is sequentially compared with the seven features in the punch identification information / die identification information from the punch / die pair identification information creation unit (66). And a punch / die pair identification information comparison section (68). The punch press according to claim 1, wherein the automatic programming device creates a processing intention data creation unit that creates processing intention data that specifies a processing region that needs to be processed to manufacture a product based on product shape data. (90),
A punch press comprising: a tool data adding unit (96) for adding data for specifying a punch and a die used for processing the processing region to the processing intention data. .   3. The punch press according to claim 2, wherein when the machining area is rectangular, the machining intention data creation unit identifies the machining area based on a machining start position and a machining end position.   3. The punch press according to claim 2, wherein the processing intention data includes processing pattern information such as overtaking.   3. The punch press according to claim 2, wherein when the processing region includes a peripheral cutting of a product and a drilling process inside the product, processing sequence information that defines that the peripheral cutting should be performed after the drilling process is provided. A punch press, which is included in the processing intention data.   3. The punch press according to claim 2, wherein the machining intent data creating unit (90) is provided in an automatic programming device (78), and the tool data adding unit (96) is a punch for numerically controlling the punch press. A punch press provided in the NC device for press (54).

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