WO2002032601A1 - Systeme de production de ressort - Google Patents

Systeme de production de ressort Download PDF

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Publication number
WO2002032601A1
WO2002032601A1 PCT/JP2000/007241 JP0007241W WO0232601A1 WO 2002032601 A1 WO2002032601 A1 WO 2002032601A1 JP 0007241 W JP0007241 W JP 0007241W WO 0232601 A1 WO0232601 A1 WO 0232601A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
shape element
input
operation program
parameters
Prior art date
Application number
PCT/JP2000/007241
Other languages
English (en)
Japanese (ja)
Inventor
Tomoaki Hachiya
Hirochika Takahashi
Masashi Nakayama
Yuuichi Komazawa
Kiyoshi Natsume
Eiji Obayashi
Original Assignee
Technowave, Ltd.
Asahi-Seiki Manufacturing Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technowave, Ltd., Asahi-Seiki Manufacturing Co., Ltd. filed Critical Technowave, Ltd.
Priority to JP2002535828A priority Critical patent/JP3947466B2/ja
Priority to PCT/JP2000/007241 priority patent/WO2002032601A1/fr
Publication of WO2002032601A1 publication Critical patent/WO2002032601A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire

Definitions

  • the present invention relates to a spring manufacturing system that can easily produce a machining program for automatically machining a wire spring.
  • BACKGROUND ART Wire-worked springs are obtained by cold-working spring wires into various shapes in the cold, and in addition to coil-shaped tension or compression panels specified by JIS standards and the like, It is formed in various dimensions, shapes and combinations of shapes according to the application.
  • a general NC controller is used for a spring forming machine for processing this type of wire spring.
  • a general cutting machine In order to program the machining procedure in the NC controller, a general cutting machine has a support system such as CAD, which can cut into that shape only by specifying the shape and parameters.However, in the case of a spring, a three-dimensional geometric shape Therefore, the spring forming machine is different from a general machine tool mainly composed of orthogonal axes, and has a large number of rotating axes, so that this kind of programming method cannot be applied. Therefore, in the manufacture of springs, conventionally, the G-code, a programming language peculiar to the NC controller, was usually used, and there was virtually no other option.
  • the G code expresses a command to the controller by combining a single alphabetic character called an address and a numerical value added thereto.
  • the combination of the address and the numerical value is called a word.
  • a read called a dimension word is a command that has an axis name (X, ⁇ , ⁇ ⁇ ⁇ ⁇ ) at its address, and is interpreted as a movement command to that axis.
  • the preparation function is a word with G as the address, and instructs the controller to perform various operations according to the numerical value. For example, GO 0 is rapid traverse, GO 1 is processing by linear interpolation, GO 2 is processing by counterclockwise circular interpolation, GO 3 «processing by clockwise circular interpolation contrary to G 02, G 04 is time waiting , G90 is an absolute position command mode, G91 is a relative travel distance command mode, and so on, and these are words that are the basis of the G code designation and are frequently used.
  • the auxiliary function is a word having M as an address, and instructs the controller to execute various auxiliary functions according to the numerical value.
  • the execution of auxiliary functions is often performed by an external sequencer, etc., and in that case, the controller simply outputs the value after M as it is or decodes it into a BCD code etc. and outputs it to the digital output port It is.
  • a controller customized for a spring molding machine may be used instead of using a general NC controller as it is.However, the programming method using the G code remains the same, and only a spring molding machine is specified. A new preparation function has been added to control the address G Only assigns a numerical value to be added to
  • G code is represented by a combination of numerical values meaningless to humans, and has a low function as a programming language. For example, calculations using variables and conditional branches cannot be performed.
  • an object of the present invention is to provide a system and a method that can flexibly program a spring load by an input that is intuitively understandable. Disclosure of the invention The invention described in claim 1
  • a spring processing device that forms a spring by abutting a tool against a wire fed from a quill according to command data
  • a data creation unit for creating command data for outputting to the spring working device
  • Storage means for storing a conversion rule between a processing shape element and an operation sequence; a selection input means for a processing shape element;
  • Parameter input means for the selected machining shape element
  • Conversion means for converting the input machining shape element and its parameters into an operation program using a conversion rule stored in the storage means
  • a spring manufacturing system characterized by having:
  • a "spring” is a continuous connection of a group of a plurality of processing shape elements, for example, a bend, a gang, and the like. It is an assembly of angle, bending R and extension length.
  • each geometric element corresponds to the operation of the tool on each axis, the assembly of geometric elements is considered as one unit and each processing element Focusing on the possibility of constructing the shape of the spring, inputting the parameters of the shape of the spring to be made and the dimensions of each processing shape element related to this shape enables the final creation of the machining command data.
  • a spring manufacturing system is provided.
  • the processing shape element means a set of a plurality of geometric elements that can be converted into an operation sequence. For example, bending, coiling, taper coiling, wire feed, etc. can be defined as appropriate.
  • the above-mentioned processed shape elements are defined in advance, and can be selectively input by the control means.
  • the correspondence between the machining shape element and the operation sequence is stored in the conversion rule storage means.
  • the storage means in this case simply means a storage part of such a correspondence rule between the processing shape element and the operation sequence, and it is not necessary to secure a coherent area at one place.
  • the data of the spring shape input by the selection input means and the parameter input means of the processing shape element is converted into an operation program by the conversion means of the data creation unit.
  • the operation program referred to here is a program corresponding to the operation sequence, and may be the command data itself output to the spring working device or a program at a stage that can be recognized by a human. In the latter case, this is further converted into command data that can be distinguished by the spring working device.
  • command data corresponding to the operation program is output to the spring working device.
  • the spring working device referred to here is a spring working device such as NC capable of performing an operation corresponding to the input of command data.
  • the processing shape element selection input means and the parameter overnight input means Has the form of a tabular input field to be displayed,
  • Graphic display means for continuously displaying the selected and input machining shape element and spring shape indicated by the parameter in a dramatic manner
  • a spring manufacturing system according to claim 1 or claim 2, characterized in that:
  • the graphic display corresponding to the input machining shape element allows the user to input numerical values while intuitively confirming the shape of the spring currently being input.
  • the invention described in Claim 4 is
  • the data creation unit has an operation program editing unit
  • a spring manufacturing system according to any one of claims 1 to 3, characterized in that: By making it possible to edit the operation program, it is possible to make detailed settings such as fine adjustment of the shape.
  • the invention described in claim 5 is
  • Computer readable recording software characterized by having It is a recording medium.
  • the invention described in claim 7 is
  • the parameter input means of the processing shape element is
  • the invention described in claim 8 is
  • the invention described in claim 9 is
  • a method of creating an operation program for a spring processing apparatus in which a processing shape element that can be converted into an operation sequence is defined in advance so that a spring is formed by abutting a tool against a wire rod fed from a quill.
  • Steps to input the parameters of the selected machining shape element
  • FIG. 1 is an overall view showing the configuration of a spring manufacturing system to which the method of the present invention is applied.
  • FIG. 2 is an explanatory diagram showing a screen display in a processing shape element selection input means.
  • FIG. 3 is an explanatory view showing a screen display on the parameter input means.
  • FIG. 4 is an explanatory diagram showing a graphic display state (upper right part) by the graphic display means during input.
  • FIG. 5 is an explanatory diagram showing a screen display at the time of completion of the input operation.
  • FIG. 6 is an explanatory diagram showing a state in which conversion to an operation program is displayed. Explanation of reference numerals
  • FIG. 1 is a system diagram showing the overall configuration of the present invention.
  • 1 is a spring working device
  • 2 is a data creation unit.
  • the spring processing device 1 has a plurality of tool units 102 for cutting and bending radially arranged around the supply quill 101 for supplying the wire W so as to be able to advance and retreat toward the quill 101.
  • This is a multi-axis machining machine with a tool holding plate 103 provided with multiple tools for left and right winding and bending at the opposite position of Processing is performed according to the contents of the program.
  • the spring working apparatus 1 has, for example, an eight-axis tool, and each axis has a relationship between the following axis symbol and operation.
  • Data creation unit 2 includes screen display means 201. This is usually achieved by a display.
  • the data creation unit includes a conversion rule storage means 202, a processing shape element selection input means 203, a parameter input means 204, a conversion means 205 to an operation program, and coding to command data.
  • Means 206 and command data output means 207 are provided. These are usually implemented by a computer device and its software. You.
  • the conversion rule storage means 202 stores a conversion rule between a processing shape element and an operation sequence.
  • the step of selecting and inputting the machining shape element by the input means 203 for selecting the machining shape element, and the parameter input means 20 The step of inputting the parameters of the selected processing shape element according to 4 is repeated, and the input of the spring shape is performed by the user.
  • the selected machining shape element and its parameter are converted into the operation program by the conversion means 205 to the operation program.
  • the conversion rules stored in the conversion rule storage means 202 are used. By repeating these steps, an operation program for processing the spring shape required by the user is created.
  • the operation program is a numerical value in the form of a table that is easy for the user to recognize
  • the spring program can be recognized by the coding means 206 for the command data after the operation program is created. Converted to command data. Then, the command data corresponding to the operation program is output to the spring working device by the command data output means 207.
  • the user specifies the processing shape element with the mouse or the like in an interactive manner, and further repeats the numerical key input for the parameter input along the display screen sequentially, so that the step corresponding to the numerical input is performed.
  • Each drive program is generated, and by pressing the execution key, the spring working device 1 is driven according to the program contents, thereby making it possible to manufacture a spring having a required shape.
  • Fig. 2 shows the initial screen when the relevant software has just been started.
  • This initial screen like a normal Windows screen, has a menu bar, title bar, and header bar at the top of the display screen. Is displayed, and a table (hereinafter, referred to as a “first table”) 10 for inputting and displaying the processing shape elements and parameters is displayed on the upper left side inside.
  • help graphics 12 showing the explanation of the machining shape element is displayed on the right, and a table (hereinafter referred to as “second table”) 14 for displaying the operation program in tabular form is displayed at the bottom.
  • second table 14 for displaying the operation program in tabular form is displayed at the bottom.
  • the first Table 10 shows the case where the operator specifies dimensions by numerical input while actually specifying the processing shape elements, and the step numbers 0 1, 0 2, 0 on the left side of the vertical axis along the processing procedure.
  • the help graphics 12 displays a side view and a front view of the quill 101 and the parameters of the processing shape element. The display is changed and displayed every time the processing shape element is selected.
  • the second table 14 displays the actual axis drive numbers 001, 002, 003, ...
  • the machining shape elements are “forming (1)”, “feed song (1)”, “coil (1)”, “taper coil (1)”, “B forming (1)”, “ Forming
  • the above processing shape elements are converted into operation programs according to the conversion rules for the operation sequence. Examples of the conversion rules are shown below. Forming (bending) [Condition 1.] When there is no coiling (including taper coil) immediately before this molding.
  • Tool rotation + wire feed eg, bending RXa
  • unit advance / retreat after a small amount Retired
  • Wire feed eg, bending RX (bending angle / 360 ° —)
  • Tool rotation + wire feed eg, coil diameter RXa
  • unit advance / retreat small
  • the machining shape elements are developed as the operation sequence of the tool.
  • An operation program is created according to the above. From the user's point of view, if the user selects “forming (1)” from the various commands (machining shape elements) in FIG. As shown in Fig. 3, “Forming (1)” is displayed as the command content in step 01, and the parameters required for the forming operation, namely, feed length, forming direction, bending, bending angle, and reciprocal LR Only the entry fields of the core metal LR are displayed as active, and key entry is possible only in these entry fields.
  • there are several types of machining shape elements with the same name such as “forming (1)” and “forming (2)”.
  • a spring shape graphics display field 2 graphically displays the spring shape at that time. 0 opens and the diagram is displayed.
  • This figure is a three-dimensional diagram developed on the XY Z-axis coordinates with the origin of the wire feeding position of the quill 101 in the spring processing device 1 as the origin.
  • a three-dimensional graphic is displayed with the direction active.
  • the scroll bar in the spring-shaped graphics display section 20 By operating the scroll bar in the spring-shaped graphics display section 20, the direction of each axis can be changed vertically and horizontally, and the position that is most visible to the user can be selected.
  • the operation to input the dimensions is repeatedly performed by sequentially designating the processing shape element for each step, and when the required spring shape is completed, the input operation is completed.
  • the cumulative shape of the figure processed for each step is displayed in the spring shape graphics display column 20. Then, when the user moves the force solver to each step in the first table 10, the machining shape in that step is converted to be active, and it is easy to determine what kind of machining is performed in which column. To be displayed. This makes it easy to change parameters after the input operation.
  • a wire cut-off process is automatically incorporated in the next step after the last input step of the operation. This is because in the final step of spring processing, the product is always forced into a product.
  • Such commands are provided to prevent erroneous input due to user input.
  • the program conversion button in the task bar as shown in Fig. 6, the numerical values are converted to the displacement amounts of each axis in the second table 14 and are transplanted.
  • the first table 10 and the help display column 12 disappear, and only the second table 14 is displayed in full screen. After this, it can be executed by clicking the “AUT ⁇ ” button on the menu bar with the mouse.
  • a dialog box for inquiring the number of products to be opened opens.Enter the number of products in this box and press the key to execute the key. The operation is performed, and the springs are sequentially and repeatedly manufactured. However, if the cumulative result of each input numerical value exceeds the processing limit value, a warning is displayed.In this case, no conversion is performed, and correction processing such as rewriting the numerical value in the second table is performed again. If this result is correct, the second table can be displayed by the program conversion button.
  • the processing limit value is, for example, when the three-dimensional shape of the spring obtained as a result of instructing the bending of each part protrudes to the back side of the quill 101 and interferes with the face plate, or if the dimensions or position are not reachable by each tool It is.
  • the procedure from the production of a new program to the execution of the production has been described.
  • the production program is further simplified because only a part of the existing program needs to be modified.
  • each processing shape element relating to the shape of a spring to be formed and its parameters are displayed in a display column displayed on a PC screen. Since the operation program can be produced by selecting and inputting in the column while looking at it, the work is easier and the change can be made easier than the conventional G code programming method.
  • visual programming can be realized by graphically expressing the spring shape that is being input or the spring shape that has already been input.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Numerical Control (AREA)

Abstract

L'invention porte sur un système de production de ressorts comprenant une unité d'usinage de ressorts. Le procédé de cette invention consiste à appliquer un outil sur un câble amené depuis un fourreau conformément à des données de commande, et une section générant des données de commande devant être envoyées à l'unité d'usinage des ressorts. Ce système se caractérise en ce que la section générant des données comprend un écran d'affichage, une mémoire pour le stockage d'une règle de conversion utilisée pour l'usinage des éléments profilés et d'une séquence d'opérations, un dispositif de sélection/introduction d'un élément profilé usiné, un dispositif d'introduction de paramètres de l'élément profilé usiné sélectionné, un dispositif pour la conversion de l'élément profilé sélectionné et de ses paramètres en un programme d'opérations utilisant la règle de conversion mise en mémoire et un dispositif destiné à envoyer à l'unité d'usinage des ressorts des données de commande correspondant au programme d'opérations.
PCT/JP2000/007241 2000-10-18 2000-10-18 Systeme de production de ressort WO2002032601A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002535828A JP3947466B2 (ja) 2000-10-18 2000-10-18 ばね製造システム
PCT/JP2000/007241 WO2002032601A1 (fr) 2000-10-18 2000-10-18 Systeme de production de ressort

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/007241 WO2002032601A1 (fr) 2000-10-18 2000-10-18 Systeme de production de ressort

Publications (1)

Publication Number Publication Date
WO2002032601A1 true WO2002032601A1 (fr) 2002-04-25

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ID=11736599

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Application Number Title Priority Date Filing Date
PCT/JP2000/007241 WO2002032601A1 (fr) 2000-10-18 2000-10-18 Systeme de production de ressort

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JP (1) JP3947466B2 (fr)
WO (1) WO2002032601A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02101506A (ja) * 1988-10-08 1990-04-13 Fanuc Ltd 部品形状作成方法
JPH05289725A (ja) * 1992-04-07 1993-11-05 Okuma Mach Works Ltd 数値制御情報作成装置
JPH08168841A (ja) * 1994-12-16 1996-07-02 Okuma Mach Works Ltd コイルばね成形機用自動プログラミング装置
JP2858628B2 (ja) * 1994-03-08 1999-02-17 オークマ株式会社 コイルばね成形機用自動プログラミング装置
JP2000158289A (ja) * 1998-11-25 2000-06-13 Toshikazu Okuno 線材加工機用制御システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02101506A (ja) * 1988-10-08 1990-04-13 Fanuc Ltd 部品形状作成方法
JPH05289725A (ja) * 1992-04-07 1993-11-05 Okuma Mach Works Ltd 数値制御情報作成装置
JP2858628B2 (ja) * 1994-03-08 1999-02-17 オークマ株式会社 コイルばね成形機用自動プログラミング装置
JPH08168841A (ja) * 1994-12-16 1996-07-02 Okuma Mach Works Ltd コイルばね成形機用自動プログラミング装置
JP2000158289A (ja) * 1998-11-25 2000-06-13 Toshikazu Okuno 線材加工機用制御システム

Also Published As

Publication number Publication date
JPWO2002032601A1 (ja) 2004-02-26
JP3947466B2 (ja) 2007-07-18

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