JP2019049828A - Production method and production system - Google Patents

Abstract

To provide a production method, etc., with which it is possible to increase the efficiency of product production.SOLUTION: Provided is a production method using a production instruction device 1 for instructing the production of a product and a length measuring instrument 4 for measuring the length of the product. The production instruction device 1 acquires order information including the length of the product, stores a plurality of the order information in a storage unit, determines a cutting pattern for taking together shaft blanks of the cut length that corresponds to the length indicated by each of the plurality of the order information from a material having a prescribed length, generates instruction information to instruct production of the product on the basis of the determined cutting pattern, and outputs the generated instruction information. The length measuring instrument 4 measures the length of the product produced on the basis of the instruction information, and specifies the product that corresponds to each of the order information in accordance with the measurement result.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a production method and a production system.

  Mainly in the manufacturing industry, when collecting products of various sizes from a given material according to the customer's order, there is a problem with so-called arrangement as to how the material waste can be minimized by how to collect .

  For example, Patent Document 1 discloses a product combination calculation method and the like for automatically determining the required amount of steel slab and the cutting method based on the designated length and the designated number of the ordered shaped steel products.

JP, 2008-171169, A

  However, the invention according to Patent Document 1 relates only to the inquiry calculation, and does not disclose how to efficiently manage a product produced based on the result of the acquisition calculation.

  In one aspect, it aims at providing a production method etc. which can aim at efficiency improvement of product productivity.

  In one scheme, the production method is a production method using a production instruction device that instructs production of a product and a length measuring machine that measures the length of the product, and the production instruction device is a head of the product. Received order information including length is stored, the plurality of received order information are stored in the storage unit, and a cutting material having a cutting length corresponding to the length indicated by each of the plurality of received order information is arranged from a material having a predetermined length. A cutting pattern is determined, and based on the determined cutting pattern, instruction information for instructing production of the product is generated, and the generated instruction information is output, and the length measuring machine performs production based on the instruction information. Measuring the length of the product, and identifying the product corresponding to each of the order information according to the measurement result.

  In one scheme, the production method is such that the product includes a shaft part having a screw formed at one end of the shaft, and the length measuring machine detects a boundary position between the shaft and the screw. A detection unit, a second detection unit that detects the position of the other end of the shaft component different from the one end, an operation unit that executes arithmetic processing, and a marking unit that marks the product The length of the shaft part is calculated based on the detection result of the first detection unit and the second detection unit, and the marking unit marks the identification information of each of the products on the product according to the calculation result. It is characterized by

  In one solution, the production method is characterized in that the order information includes specification information indicating an application of the product, and the marking unit marks an identifier corresponding to the specification information.

  In one scheme, the production method includes the order receiving information including information on the thickness of the product, and the production instructing device classifies each of the order receiving information into a plurality of production groups according to the thickness of the product. And determining the cutting pattern for combining the shaft members from the material having the thickness according to the production group for each production group, and based on the determined cutting pattern, the instruction information for each of the production groups is determined. The length measuring machine measures the length and thickness of the product, and identifies the product according to the measured length and thickness of the product.

  In one scheme, the production method includes: the order reception information includes information on the number of produced products; and the production instruction device instructs the production instructions of each of the production groups in an order according to the number of productions for each of the production groups. It is characterized by outputting information.

  In one plan, the production method includes the shaft component manufactured based on the shaft, and the production instructing device corresponds to each of the plurality of shaft components with respect to the material. The shaft member is allocated, and after allocating the shaft member, the residual length obtained by subtracting the total cutting length of the allocated shaft member from the length of the material is equal to or greater than a predetermined length. It is characterized in that the shaft material of the shaft component of 2 is allocated to the material.

  In one scheme, the production system is a production system having a production instructing device instructing production of a product, and a length measuring machine performing length measurement of the product, wherein the production instructing device measures the length of the product. An acquisition unit for acquiring order information including a storage unit for storing a plurality of the order information, and a cutting material having a cutting length corresponding to a length indicated by each of the plurality of order information, a material having a predetermined length And a generation unit for generating instruction information for instructing production of the product based on the determined cutting pattern, and an output unit for outputting the generated instruction information. The length measuring machine includes a measurement unit that measures the length of the product produced based on the instruction information, and a specifying unit that specifies the product corresponding to each of the received order information according to the measurement result. It is characterized by

  In one aspect, it is possible to improve the productivity of the product.

It is an explanatory view showing an example of composition of a production system. It is an explanatory view showing an example of a turnbuckle. It is a block diagram showing an example of composition of a server. It is explanatory drawing which shows an example of the record layout of order DB. It is explanatory drawing regarding engagement calculation of a volt | bolt. It is explanatory drawing regarding the production | generation process of instruction information. It is explanatory drawing regarding the output process of instruction information. It is a perspective view which briefly displays a length measuring machine. FIG. 6 is a schematic enlarged partial perspective view of a wing-plate end detection unit. FIG. 7 is a schematic enlarged partial side view of a wingplate end detection unit. It is a partially expanded perspective view of the length measuring machine which briefly displays a diameter measurement unit and a screw end detection unit. It is a first perspective view schematically showing a screw end detection unit. It is a 2nd perspective view which briefly displays a screw end detection unit. It is a perspective view which briefly displays a diameter measurement unit. FIG. 2 is a perspective view schematically illustrating a recording unit. It is explanatory drawing which shows the example of a marking of identification information. It is a flowchart which shows an example of the process sequence which a server performs. It is a flowchart which shows an example of the processing procedure of the subroutine of instruction information generation. It is a flowchart which shows an example of the process sequence which a length measuring machine performs.

Hereinafter, the present invention will be described in detail based on the drawings showing the embodiments.
Embodiment 1
FIG. 1 is an explanatory view showing a configuration example of a production system. In this embodiment, a production system for producing a rod-like product having a shaft part, specifically, a turnbuckle 5 for construction (see FIG. 2) will be described. The production system includes a production instruction device 1, a terminal 2, an automatic machine 3, and a length measuring machine 4. The production instruction device 1, the automatic machine 3 and the like are communicably connected via the network N.

  The production instruction device 1 is an information processing device that performs various information processing and transmission / reception of information, and is, for example, a server device, a personal computer, or the like. In the present embodiment, the production instruction device 1 is assumed to be a server device, and hereinafter the server 1 will be read for the sake of simplicity. The server 1 accumulates received order information of the turnbuckle 5 ordered from the customer, generates instruction information for instructing production of each received order item, and outputs it to the automatic machine 3 or the like.

  The terminal 2 is a terminal device for inputting order information of the turnbuckle 5, and is, for example, a personal computer. The terminal 2 transfers the received order information to the server 1.

  The automatic machine 3 is an apparatus installed in a factory, and is an apparatus that automatically performs a cutting process, a rolling process, and a welding process related to the turnbuckle 5. The automatic machine 3 cuts, rolls, and welds the material input by the operator according to the instruction information output from the server 1, and manufactures the turnbuckle bolt 51 (see FIG. 2) constituting the turnbuckle 5. Do. The manufactured turnbuckle bolt 51 is combined with the turnbuckle cylinder 53 (see FIG. 2) in the assembly process and assembled as the turnbuckle 5. Thereafter, the turnbuckle 5 is painted in the painting process.

  The length measuring machine 4 is a device for measuring the length of the turnbuckle 5 and marking identification information. The final length measurement of the turnbuckle 5 manufactured through each process is performed by the length measuring machine 4, printing of identification information for identifying individual products is performed, and the products are sorted for each customer. Thereafter, the turnbuckle 5 is shipped.

  FIG. 2 is an explanatory view showing an example of the turn buckle 5. In the production system according to the present embodiment, the turnbuckle 5 for construction conforming to the JIS standard (JIS A 5540) is produced. The turnbuckle 5 includes two turnbuckle bolts 51 and one turnbuckle cylinder 53.

  The turnbuckle bolt 51 is a shaft component related to the turnbuckle 5, and is a bolt member in which a screw portion 512 is formed at one end of the shaft portion 511. The shaft portion 511 is a rod-like member having a predetermined thickness (diameter). As will be described in detail later, the shaft portion 511 extracts the shaft by cutting an elongated material (for example, a round steel rod) having a predetermined length, and performs rolling processing on the shaft Made with The shaft portion 511 includes a screw portion 512 at one end and a welding portion 513 at the other end. The screw portion 512 is a screw groove formed at one end of the shaft portion 511 by rolling. The welded portion 513 is a welded portion to which the wing plate 52 is attached by welding. The wing plate 52 is a plate having a hole for inserting a bolt when the turnbuckle 5 is used. In the following description, the turnbuckle bolt 51 is simply referred to as a bolt 51 for the sake of simplicity. The two bolts 51 are divided into a right-handed screw 51 a and a left-handed screw 51 b according to the groove structure of the screw portion 512. The screw portion 512 of the right-handed screw bolt 51a has a right-handed screw structure which is screwed in when turned clockwise, and the screw portion 512 of the left-handed screw bolt 51b has a left-handed screw structure which is screwed when turned counterclockwise. .

  The turnbuckle cylinder 53 is a connection part that connects the right-handed screw bolt 51 a and the left-handed screw bolt 51 b, and is a part for adjusting the length of the entire turnbuckle 5. In FIG. 2, a split frame type turnbuckle cylinder 53 is illustrated as an example. The turnbuckle cylinder 53 is standardized in accordance with JIS A 5541. The turnbuckle barrel 53 is provided with two screw holes corresponding to the screw portions 512 of the right screw bolt 51a and the left screw bolt 51b, and the bolts 51 are screwed. Thus, the turnbuckle cylinder 53 connects the right screw bolt 51a and the left screw bolt 51b. In use, the entire length of the turnbuckle 5 is adjusted by rotating the turnbuckle cylinder 53. In the following description, the turnbuckle cylinder 53 is called a buckle cylinder 53 for the sake of simplicity.

  The turnbuckle 5 differs in the diameter of the bolt 51 (the diameter between the screw thread of the screw portion 512 and the screw thread) according to the contents of the order received. Specifically, a plurality of types of call diameters of the bolts 51 are defined in the JIS standard, and are defined as, for example, "M12" (numbers represent call diameters). Since the tensile strength, the tolerance strength and the like of the bolt 51 differ according to the connection diameter, bolts 51 of different connection diameter are ordered according to the design of the building.

  Further, the nominal length L3 of the turnbuckle 5 (the length connecting the holes of the two feathered boards 52, 52) also differs according to the content of the order. Accordingly, the length of the bolt 51 is changed for each order item. Specifically, in this system, the nominal length L1 of the left screw bolt 51b (the length from the tip of the screw portion 512 to the hole of the wing plate 52) is designed to be constant, and the nominal length of the right screw bolt 51a By changing L2, the nominal length L3 of the turnbuckle 5 is secured to a desired length. 2, the length S of the screw portion 512, the length W of the welded portion 513, the clearance from the bolt end to the mounting bolt hole center (the length from the welded portion 513 to the hole of the feather plate 52) e3, the feather plate 52 The tension (the length from the hole to the tip of the feathered board 52) e1 is determined by the JIS standard, and the nominal length L2 is adjusted by adjusting the length of the shaft portion 511.

  Furthermore, the type of coating color applied to the turnbuckle 5, the type of the feathers board 52, and the type of the buckle barrel 53 also differ according to the contents of the order. As described above, in this system, since orders for products of different specifications are received according to the needs of each customer, products must be individually manufactured according to the contents of each order received. In this system, each order information is accumulated in a database, and the order information group is reorganized according to the thickness of the bolt 51 and the like to improve the production efficiency of the product.

FIG. 3 is a block diagram showing a configuration example of the server 1. The server 1 includes a control unit 11, a main storage unit 12, a communication unit 13, and an auxiliary storage unit 14.
The control unit 11 has an arithmetic processing unit such as one or more CPUs (Central Processing Units), MPUs (Micro-Processing Units), etc., and reads and executes the program P stored in the auxiliary storage unit 14. It performs various information processing, control processing and the like related to the server 1. The main storage unit 12 is a static random access memory (SRAM), a dynamic random access memory (DRAM), a flash memory or the like, and temporarily stores data necessary for the control unit 11 to execute arithmetic processing. The communication unit 13 includes a processing circuit and the like for performing processing related to communication, and transmits and receives information with the terminal 2 and the like.

The auxiliary storage unit 14 is a large capacity memory, a hard disk or the like, and stores a program P necessary for the control unit 11 to execute processing and other data. Further, the auxiliary storage unit 14 stores an order receipt DB 141 storing order receipt information transferred from the terminal 2.
The auxiliary storage unit 14 may be an external storage device connected to the server 1.

  The configuration of the server 1 is not limited to the above, and includes, for example, a display for displaying information related to the server 1, an operation input unit for inputting information, and a reading unit for reading data of a portable storage medium. It is also good.

  FIG. 4 is an explanatory view showing an example of the record layout of the order DB 141. As shown in FIG. The order receipt DB 141 includes a slip number row, an item number row, an order receipt date row, a painting CD row, a painting name row, a call diameter row, a frame type row, a battleboard ID row, a cut length row, a number row, a shipping date row, and a specification row. including. The slip number column stores the number of a slip when an order is received from a customer. The item number column stores the item number of each turnbuckle 5 that has been ordered, in association with the slip number. The order receipt date column stores the order receipt date in association with the slip number.

  The painted CD row, painted name row, call diameter row, frame type row, feathered board ID row, cut length row, and number row respectively correspond to the slip number and the item number, and the order details of the individual turnbuckle 5 are It is memorized. Specifically, the coating CD row and the painting name row are cut colors, the connection diameter row is the connection diameter of the bolt 51, the frame type row is the type of the buckle barrel 53, the feather plate ID row is the feather plate type, cutting length The row stores the length of the right-handed screw bolt 51a (the cut length of the shaft material collected from the material), and the number sequence stores the number of orders received. The shipping date column stores the shipping date of each turnbuckle 5 in association with the slip number and the item number. The specification column stores specification information of each turnbuckle 5 received. The specification information is information indicating the use of the product, and is, for example, information indicating an object of use of the turnbuckle 5 which is a building material, that is, a building pointing to a construction target by a customer.

  FIG. 5 is an explanatory view regarding the engagement calculation of the bolt 51. As shown in FIG. In the present embodiment, the server 1 groups the order information of the turnbuckles 5 ordered from each customer according to the thickness (call diameter) of the bolt 51, and for each production group, the axis of the action of producing bolt 51 from material. Determine the cutting pattern to align the material.

  The upper side of FIG. 5 conceptually shows materials used for manufacturing the bolt 51 and a shaft member of the bolt 51 indicated by each order information. As shown in FIG. 5, the order details of the turnbuckle 5 ordered from each customer are various, and the length and thickness are different. Therefore, when combining the shaft material for producing each right-handed screw bolt 51a from a material having a predetermined length (hereinafter referred to as “material length”), the thickness of the designated thickness according to the content of each order received It is necessary to cut out each shaft separately from the material so as to have a designated length. In the past, the work relied heavily on the experience of the workers. Therefore, depending on the result of the cutting work, the material length can not be effectively used, and a wasteful portion is often produced.

  In the present embodiment, as shown on the lower side of FIG. 5, the server 1 consolidates each order reception information into a production group according to the thickness (call diameter) of the right screw bolt 51a. Then, the server 1 calculates, for each production group, an optimum combination of cutting lengths of the shaft when combining the shaft of the right-handed screw bolt 51a from each material. The server 1 generates instruction information indicating the calculated combination of the right-handed screw bolts 51a, and outputs the instruction information to the automatic machine 3 to instruct cutting of the material.

  FIG. 6 is an explanatory diagram of a process of generating instruction information. The table in FIG. 6 is the same as the record contents of the order DB 141 illustrated in FIG. 3. The server 1 classifies the order information group of each turnbuckle 5 shown in the table in FIG. 6 into each production group shown in the center of FIG. Specifically, in addition to the diameter of the bolt 51, the server 1 performs grouping on the basis of each item, with the paint color, the type of the buckle cylinder 53, and the type of the wingboard 52 as classification target items.

  The server 1 executes a process of calculating an optimal arrangement, for each production group classified, how to cut each material. For example, the server 1 satisfies the cutting length of the shaft corresponding to the length of each right-handed screw bolt 51a indicated by each order reception information, and the total cutting length of the shaft allocated to one material is equal to or less than the material length Formulate a mathematical programming problem (so-called cutting stock problem) under the condition that the number of materials used is minimized, and find the optimum combination. For example, the server 1 performs calculation using linear programming, a sequence generation method, and the like.

  As a result, as shown on the lower side of FIG. 5, the server 1 determines the combination of bolts 51 whose total cutting length assigned to the material is equal to or less than the material length. The lower table of FIG. 6 shows an example of the concrete interrogation result. In the cutting patterns of the respective materials shown in the lower table of FIG. 6, the total value of the cutting lengths of the bolts 51 indicated by "cutting 1", "cutting 2", etc. is 7500 mm or less which is the "material length". The “number” in the table indicates the number of materials to which the cutting pattern is applied. Further, “front end” and “rear end” respectively indicate surplus material portions set in advance. Also, “milling material” indicates the residual length obtained by subtracting the total value of cutting lengths from the material length, that is, the remaining length. As described above, the server 1 calculates the optimal combination for combining the shaft materials used to manufacture the right-handed screw bolt 51a from the material.

  In the present embodiment, in order to use the material more effectively, when there is a surplus in the material length, the server 1 extracts the shaft material used for manufacturing the left screw bolt 51b (second shaft component) from the remaining portion. To tell. For example, as shown in “production data A” of FIG. 5, even if the shaft material of the right-handed screw bolt 51a is allocated to the material by performing the joint calculation, depending on the cutting length of the shaft material specified in the order information, I get quite a lot. Therefore, the server 1 allocates the shaft material used for manufacturing the left-handed screw bolt 51b to the remaining material portion.

  As described above, the server 1 first allocates the cut length of the shaft material for the production of the plurality of right-handed screw bolts 51a to the material length. After assigning the shaft of the right-handed screw bolt 51a, the server 1 calculates the residual length obtained by subtracting the total cutting length of the assigned right-handed shaft from the material length, the left-handed shaft It is determined whether it is more than the cutting length of. The cutting length of the shaft used for manufacturing the left screw bolt 51b is set to, for example, about 500 to 1000 mm, and in the present embodiment, the cutting length of the left screw working shaft is 500 mm. The length of the left screw bolt 51b is not limited to 500 to 1000 mm, and may be less than 500 mm or 1000 mm or more. Further, the length of the left screw bolt 51b may be variable according to the contents of the order received.

  If it is determined that the residual length of the material is equal to or greater than the cut length of the left screw made shaft, the server 1 assigns the left screw made shaft to the material. If the residual length is still 500 mm or more after the assignment of the left screw bolt 51b, the server 1 further assigns the left screw bolt 51b. As a result, as shown in the lower table of FIG. 6, the server 1 allocates the left-handed screw to the remaining portion of the material.

  The server 1 repeats the above-described connection calculation process for each production group to determine an optimal cutting pattern for collecting the shaft material from the material. The server 1 generates, for each production group, instruction information to cut each material according to the determined cutting pattern.

  FIG. 7 is an explanatory diagram of output processing of instruction information. As described above, the server 1 classifies each order acceptance information stored in the order acceptance DB 141 into a plurality of production groups, and generates instruction information for each production group. The server 1 outputs the generated instruction information related to each production group to the automatic machine 3 or the like in a predetermined order.

  For example, the server 1 performs ranking in accordance with the number of production of the turnbuckles 5 in each production group, and sequentially outputs the instruction information of the production group having a large number of productions. By instructing production in order from the production group in which the number of productions is large, it is possible to enhance the final connection efficiency and reduce the remainder of the material (residual length). For example, as shown in FIG. 7, in the case where the number of productions of the production group having a painted color of rust and a diameter of 16 mm is the largest, the server 1 first outputs the instruction information of the production group.

  The automatic machine 3 manufactures the turnbuckles 5 pertaining to each production group in accordance with the order instructed from the server 1. The automatic machine 3 cuts each material according to the cutting pattern indicated by the instruction information, and performs rolling and welding to manufacture the bolt 51. Thereafter, the bolt 51 and the buckle cylinder 53 are assembled in the assembly process, and the painting is performed in the painting process. Thus, the turnbuckle 5 is produced.

  As described above, in the production system according to the present embodiment, plural pieces of order reception information having different thicknesses and lengths are grouped, and the turnbuckle 5 is produced for each production group. Thereby, the efficiency of productivity can be improved. In the present embodiment, in particular, the higher the number of orders received for the turnbuckle 5, the higher the efficiency.

  The turnbuckle 5 produced through each process is sorted for each customer according to the order reception information by measurement using the length measuring machine 4. Specifically, the length measuring machine 4 measures the length and thickness of the bolt 51 (right-handed screw bolt 51a), and according to the measurement result, identification information capable of identifying the turnbuckle 5 delivered to each customer Mark (print) on the wing board 52.

  FIG. 8 is a perspective view schematically showing the length measuring machine 4. The length measuring machine 4 is supported by the support frame 42 extending in one direction and the support frame 42, and the plurality of tables 43, 43, 43... Aligned in the one direction, and one end of the support frame 42 And a control unit 41 attached to the The control unit 41 includes a control circuit, a memory, and the like. The control circuit has, for example, an FPGA (Field Programmable Gate Array) or a processor. The turnbuckle 5 to be measured is placed across the plurality of tables 43. On the plurality of tables 43, the right-handed screw bolt 51 a is disposed on one end side of the support frame 42, and the left-handed screw bolt 51 b is disposed on the other end side of the support frame 42.

  The length measuring machine 4 is provided with a lifter 120. The lifter 120 has a plurality of pivot bars 121 disposed between the tables 43. A plurality of rollers are provided on the upper surface of the rotating rod 121. In the length measuring machine 4, the rotary rod 121 is raised by driving the lifter 120. The table 43 moves upward from the table 43. The turning rod 121 turns and inclines, and the turnbuckle 5 moves on the roller and is carried out of the length measuring device 4.

  FIG. 9 is a schematic enlarged partial perspective view of the wingboard plate end detection unit 60 (second detection unit). FIG. 10 is a schematic enlarged partial side view of the wingboard plate end detection unit 60. As shown in FIG. At one end side of the support frame 42, a wing plate end detection unit 60 for detecting the end of the wing plate 52 of the right screw bolt 51a, that is, the other end of the right screw bolt 51a is provided.

  The wingplate end detection unit 60 includes a rail 61 extending in one direction, one or more sliders 62 moving on the rails 61, and a moving plate 63 connected to the sliders 62. The rails 61 are arranged next to the plurality of tables 43. The movable plate 63 is provided with a support 64 having a cantilever shape. The support 64 includes a protrusion 64 a that protrudes upward from the moving plate 63 and a beam 64 b that protrudes from the protrusion 64 a toward the table 43. The beam portion 64 b is disposed above the table 43 so as to cross the table 43.

  The tip of the beam 64 b is located outside the table 43. The light emitting portion 65a is attached to the projecting portion 64a via the attachment plate 64c. A light receiving portion 65b is attached to the tip of the beam portion 64b. The table 43 is disposed between the light emitting unit 65a and the light receiving unit 65b, and the light emitting unit 65a emits light toward the light receiving unit 65b.

  Pulleys 66 are provided on the outside of each end of the rail 61. The illustration of the pulley 66 on the other end side of the support frame 42 is omitted. The pulley 66 has a horizontal direction orthogonal to the rail 61 as the rotation axis direction. A motor 67 is connected to one pulley 66. A timing belt 68 is hung on the two pulleys 66, 66. The upper side of the timing belt 68 is disposed above the rail 61, and the lower side of the timing belt 68 is disposed below the rail 61. A fitting member 69 is connected to the moving plate 63, and the fitting member 69 is fitted in the groove of the timing belt 68.

  The timing belt 68 is rotated by the rotation of the motor 67, the moving plate 63 moves on the rail 61 via the slider 62, and the support 64, the light emitting portion 65a and the light receiving portion 65b also move along the rail 61. After the turnbuckle 5 is placed on the table 43, the control unit 41 drives the motor 67 to move the moving plate 63 to the other end side of the support frame 42. The control unit 41 sequentially stores the intensity of light detected by the light receiving unit 65 b in the memory in association with the positions of the light emitting unit 65 a and the light receiving unit 65 b in the direction parallel to the rail 61. The motor 67 is provided with an encoder, and information indicating the positions of the light emitting unit 65 a and the light receiving unit 65 b is input to the control unit 41 from the encoder.

  The control unit 41 compares the intensity of light detected by the light receiving unit 65b with a predetermined value, and corresponds to the intensity of light less than the detected predetermined value when the detected intensity of light becomes less than the predetermined value. It is determined that the position to be moved is the end of the wing plate 52 of the right screw bolt 51a. When the end of the wingboard 52 exists between the light emitting unit 65a and the light receiving unit 65b, the intensity of light detected by the light receiving unit 65b is reduced. The control unit 41 stops the driving of the motor 67, and temporarily stores the detected position of the end of the wing plate 52.

  FIG. 11 is a partially enlarged perspective view of the length measuring machine 4 schematically showing the diameter measurement unit 70 and the screw end detection unit 80. As shown in FIG. As shown in FIGS. 8 and 11, a diameter measurement unit 70 (diameter measurement unit) and a screw end detection unit 80 (first detection unit) are disposed on the other end side of the support frame 42. The diameter measurement unit 70 is disposed closer to the wing plate end detection unit 60 than the screw end detection unit 80. The turnbuckle 5 is placed on the table 43 such that the screw portion 512 of the right screw bolt 51 a is disposed on the upper side of the screw end detection unit 80.

  FIG. 12 is a first perspective view schematically showing the screw end detection unit 80. As shown in FIG. FIG. 13 is a second perspective view schematically showing the screw end detection unit 80. As shown in FIG. The screw end detection unit 80 includes a drive unit 81. The driving portion 81 is screwed with a rail 82, a slider 83 moving on the rail 82, a ball screw 84 parallel to the rail 82 disposed on the upper side of the rail 82, and the ball screw 84. , A connecting portion 86 connected to the nut 85, and a servomotor 84a for driving the ball screw 84. The rails 82 of the drive unit 81 are substantially parallel to the rails 82 of the wingplate end detection unit 60. The servomotor 84 a includes an encoder (not shown), and a position signal is input to the control unit 41 from the encoder.

  By driving the servomotor 84a, the nut 85 moves, and the connecting portion 86 moves. The slider 83 functions as a guide for the nut 85 and moves on the rail 82.

  The connecting portion 86 includes a rectangular side plate 86 a and an upper plate 87 perpendicular to the side plate 86 a. The long side of the side plate 86a extends in the axial direction of the ball screw 84, and the short side of the side plate 86a extends in the vertical direction. One surface (hereinafter referred to as a surface) of the side plate 86 a is connected to the side surface of the nut 85. The upper plate 87 has a rectangular shape, and the long side of the upper plate 87 extends in the axial direction of the ball screw 84, and the short side of the upper plate 87 extends in the horizontal direction orthogonal to the axial direction of the ball screw 84. The upper plate 87 is disposed above the side plate 86a. The upper plate 87 is arranged in the axial direction of the ball screw 84, and is provided with two through holes 87a, 87a penetrating vertically.

  An L-shaped member 86b is connected to both ends of the side plate 86a on the other surface (hereinafter referred to as the back surface) of the side plate 86a. The L-shaped member 86 b connects the back surface of the side plate 86 a and the lower surface of the upper plate 87. As shown in FIG. 13, a cylinder 89 is attached to the center of the lower surface of the upper plate 87. A rod 89 a projects downward from the cylinder 89. The lower end of the rod 89a is not connected to the horizontally extending lift plate 88. The rod 89 a moves up and down to contact the lift plate 88 or separate from the lift plate 88. Two connecting cylinders 91, 91 project upward from the lift plate 88, and are inserted into the two through holes 87a, 87a of the upper plate 87, respectively.

  An upper end portion of the connecting cylinder 91 is connected to the support block 90. A spring 91 a is provided around the connecting cylinder 91. The spring 91 a is sandwiched between the upper plate 87 and the support block 90. When the rod 89a protrudes downward and pushes the lift plate 88 downward, the spring 91a is shortened. When the rod 89a is raised and separated from the lift plate 88, the spring 91a pushes the support block 90 by an elastic restoring force. The support block 90 is in the form of a rectangular parallelepiped extending in the axial direction of the ball screw 84, and the connecting cylinder 91 is connected to the lower surface of the support block 90. A micrometer 103 (detection unit) is attached to one end of the support block 90 (the end opposite to the buckle cylinder 53). The micrometer 103 extends up and down, and the upper end thereof is disposed above the upper surface of the support block 90.

  Two support plates 92, 92 are provided on both sides of the support block 90 parallel to the ball screw 84, respectively. The support plate 92 extends in the axial direction of the ball screw 84, and on the other end side (buckle barrel 53 side) of the support block 90, the end of the support plate 92 protrudes upward beyond the support block 90.

  In the middle of the support block 90, two second roller support plates 102a, 102a are provided. The second roller support plate 102 a is disposed between the end of the support plate 92 protruding upward and the micrometer 103, and protrudes upward from the support block 90. The second roller 102 for detecting the height of the shaft portion 511 of the right-handed screw bolt 51a is rotatably supported between the two second roller support plates 102a. The second roller 102 rotates with the horizontal direction orthogonal to the axial direction of the ball screw 84 as the rotation axis direction.

  Between the upwardly projecting ends of the two support plates 92, a pivot 94 perpendicular to the support plate 92 is provided. One end of a rotating lever 93 is rotatably connected to the pivot 94. The rotation lever 93 is disposed between the support plates 92 and extends from the pivot 94 to the micrometer 103. The tip of the rotation lever 93 is disposed above the micrometer 103. Two first roller support plates 101 a and 101 a are provided at the middle of the rotation lever 93. The first roller support plate 101 a protrudes upward from the rotation lever 93. Between the two first roller support plates 101a, a first roller 101 (contactor) for detecting the boundary position of the shaft portion 511 and the screw portion 512 of the right-handed screw bolt 51a is rotatably supported. The first roller 101 rotates with the horizontal direction orthogonal to the axial direction of the ball screw 84 as the rotation axis direction.

  A portion above the upper plate 87 is covered by a rectangular parallelepiped cover 104 which is open at the lower side. The upper surface of the cover 104 is provided with two through holes 104 a, 104 a penetrating vertically. The first roller 101 and the second roller 102 are respectively inserted into the two through holes 104 a and disposed above the cover 104. The second roller 102 is disposed slightly above the first roller 101. The second roller 102 is provided with a switch (not shown).

  The control unit 41 operates the screw end detection unit 80 as described below. In the initial state, the rod 89a of the cylinder 89 protrudes downward, and the spring 91a is compressed. The control unit 41 drives the cylinder 89 to raise the rod 89a. The rod 89a is separated from the lift plate 88, the elastic restoring force of the spring 91a acts on the support block 90, the support block 90 is lifted, and the lift plate 88 is also lifted. The spring 91 a around the connecting cylinder 91 extends. As the support block 90 is raised, the first roller 101 and the second roller 102 are also raised. The second roller 102 contacts the rod 89a and stops. At this time, the elevation of the lift plate 88 also stops. The lift plate 88 does not contact the rod 89 a of the cylinder 89 until the second roller 102 stops. Although the first roller 101 also ascends with the second roller 102, the second roller 102 is disposed above the first roller 101 because the second roller 102 is disposed above the first roller 101. Contact The upper end of the first roller 101 is in contact with the lower end of the shaft portion 511, and the rotary lever 93 does not push the micrometer 103. When the first roller 101 and the second roller 102 make strong contact with the shaft portion 511, the spring 91a around the connecting cylinder 91 is contracted, the impact is alleviated, and the damage of the first roller 101 and the second roller 102 is prevented. .

  Next, the control unit 41 drives the servomotor 84 a to move the first roller 101 toward the screw portion 512. When the first roller 101 reaches the end portion of the screw portion 512, ie, the boundary between the screw portion 512 and the shaft portion 511, the first roller 101 is pushed from the thread of the end portion of the screw portion 512, and the rotation lever 93 rotates downward, and the tip of the rotation lever 93 pushes the micrometer 103.

  The distance between pivot 94 and micrometer 103 is greater than the distance between first roller 101 and pivot 94. Therefore, the distance by which the end of the rotary lever 93 rotates is larger than the distance by which the middle portion of the rotary lever 93 in contact with the first roller 101 rotates. That is, the distance of rotation of the middle portion of the rotary lever 93 is amplified at the end of the rotary lever 93.

  The micrometer 103 moves by the amplified distance and outputs the moved distance to the control unit 41. The control unit 41 determines whether the input moving distance is equal to or more than a predetermined value. When the movement distance is equal to or more than a predetermined value, it is considered that the first roller 101 has reached the boundary between the screw portion 512 and the shaft portion 511. If the movement distance is less than the predetermined value, it is considered that the first roller 101 has not reached the boundary between the screw portion 512 and the shaft portion 511. If the movement distance is equal to or greater than a predetermined value, the position indicated by the position signal input from the encoder of the servomotor 84a is temporarily stored in the memory as the boundary between the screw portion 512 and the shaft portion 511. The servomotor 84a moves a predetermined distance and then stops.

  The control unit 41 determines the length of the right-handed screw bolt 51 a based on the boundary position between the shaft portion 511 and the screw portion 512 detected by the screw end detection unit 80 and the position of the end of the wing plate 52 detected by the wing plate end detection unit 60. Ask for As described with reference to FIG. 2, the length S of the screw portion 512, the degree of elasticity e1 of the wing plate 52, and the like are determined by the standard. For example, the control unit 41 adds the length S of the screw portion 512 to the distance between the end of the wing plate 52 and the boundary between the shaft portion 511 and the screw portion 512 and subtracts the extension e1 of the wing plate 52 The nominal length L2 of the right-handed screw bolt 51a is calculated by

  FIG. 14 is a perspective view schematically showing the diameter measurement unit 70. As shown in FIG. The diameter measurement unit 70 includes a base 71, and a first link 72 and a second link 73 protruding upward from the base 71. Protruding end portions of the first link 72 and the second link 73 are separated in a direction orthogonal to the shaft portion 511. A support portion 74 is provided at the projecting end of the second link 73. The support portion 74 includes a first pillar 74a extending in the vertical direction, and a second pillar 74b projecting obliquely upward from the upper end of the first pillar 74a toward the first link 72.

  One end of the movable link 76 is rotatably connected to the projecting end of the first link 72 via a pivot 75. The pivot 75 has a direction parallel to the shaft 511 as the rotation axis direction. The other end of the movable link 76 is opposed to the tip of the second pillar 74b. The shaft portion 511 of the right-handed screw bolt 51a is disposed between the other end portion of the movable link 76 and the tip end portion of the second column portion 74b.

  A cylinder 77 and a piston rod 78 projecting from the cylinder 77 are provided between the first column portion 74 a and the movable link 76. The cylinder 77 is fixed to the first column portion 74a. The projecting end of the piston rod 78 is rotatably connected to the movable link 76.

  The pivot shaft 75 is provided with a dog 79 a in the vicinity of the pivot shaft 75 of the movable link 76. The dog 79a extends toward the first pillar 74a. A proximity switch 79 b is provided in the vicinity of the first column portion 74 a. The proximity switch 79 b includes a plurality of switches.

  The control unit 41 operates the diameter measurement unit 70 as described below. The control unit 41 drives the cylinder 77 to make the movable link 76 approach the second pillar 74b. The shaft portion 511 of the right-handed screw bolt 51a is sandwiched between the movable link 76 and the second pillar portion 74b. The dog 79 a moves a distance corresponding to the diameter of the shaft portion 511. When the dog 79a approaches the proximity switch 79b, any switch corresponding to the diameter of the shaft portion 511 is turned on. The control unit 4 takes in the output of the proximity switch 79 b and obtains the diameter (thickness) of the shaft portion 511.

  Although the diameter measurement unit 70 measures the diameter of the shaft portion 511 of the right-handed screw bolt 51a in the above description, it goes without saying that the diameter of the left-handed screw bolt 51b may be measured.

  As shown in FIG. 8, on the opposite side of the control unit 41, the recording unit 110 is attached to the support frame 42. FIG. 15 is a perspective view schematically showing the recording unit 110. As shown in FIG. The recording unit 110 includes two parallel rails 111 and 111, a ball screw 112 disposed between the two rails 111 and parallel to the rail 111, a nut 113 screwed to the ball screw 112, and a ball screw. A motor 114 for rotating 112, a slider 115 connected to the nut 113 and moving on the rail 111, and a moving plate 116 attached to the slider 115 are provided. The rails 111 extend in the same direction as the support frame 42. The moving plate 116 extends in the horizontal direction.

  Above the ball screw 112, a rectangular table 119 extending in the axial direction of the ball screw 112 is disposed. The table 119 is fixed to the support frame 42 via a connecting member (not shown). The table 119 is formed with a slit 119 a extending in the longitudinal direction of the table 119.

  The moving plate 116 is disposed between the ball screw 112 and the table 119. A light receiving unit 117 b and an inkjet head 118 are provided on the moving plate 116. The ink jet head 118 is provided with a light emitting unit 117 a. The light emitting unit 117a is disposed below the slit 119a. The light receiving unit 117 b outputs the intensity of the received light to the control unit 41. The inkjet head 118 is disposed so as not to overlap the table 119 in the horizontal direction orthogonal to the ball screw 112.

  The left screw bolt 51 b is placed on the table 119. A wing plate 52 is formed at the end of the left screw bolt 51 b on the opposite side of the buckle barrel 53. The shaft portion 511 of the left-handed screw bolt 51b is arranged to close a part of the slit 119a.

  The control unit 41 operates the recording unit 110 as described below. In the initial state, it is assumed that the light receiving portion 117b is disposed below the other portion of the slit 119a which is not closed by the shaft portion 511 of the left screw bolt 51b. The control unit 41 drives the motor 114 to move the light emitting unit 117a, the light receiving unit 117b, and the ink jet head 118 toward the blade plate 52 of the left screw bolt 51b.

  The control unit 41 takes in the output of the light receiving unit 117b, and determines whether the intensity of the received light is equal to or greater than a threshold. When the intensity of the received light is equal to or higher than the threshold value, it is considered that the light emitted from the light emitting unit 117a passes through the slit 119a and is received by the light receiving unit 117b, and the ink jet head 118 reaches the feather plate 52 It is not considered. If the intensity of the received light is not equal to or higher than the threshold value, that is, less than the threshold value, it is considered that the light emitted from the light emitting unit 117a is reflected by the wing plate 52 closing the slit 119a and not received by the light receiving unit 117b. The ink jet head 118 is considered to have reached the feathered board 52. The threshold value is stored in advance in the memory of the control unit 41. In addition, it may replace with the light emission part 117a and the light reception part 117b, and may use a reflective optical sensor provided with a light emitting element and a light receiving element.

  When the intensity of the received light is less than the threshold value, the control unit 41 drives the ink jet head 118 to mark the identifier (identification information) of the product corresponding to each order reception information on the feather plate 52. For example, the control unit 41 prints an identifier indicating the slip number at the time of receiving the product order and the specification information of the product designated at the time of receiving the order on the wing plate 52 of the left screw bolt 51b.

FIG. 16 is an explanatory view showing an example of marking of identification information. The recording unit 110 prints the identifier 200 shown in FIG.
For example, the control unit 41 acquires order information including the slip number and specification information of the order received from the server 1 and the length and thickness of the bolt 51 via a local PC (not shown) in the factory. , In association with each other and stored in memory. The length measuring machine 4 may read the order reception information from, for example, a portable storage medium, or may receive the input of the order reception information by manual input by the operator. The control unit 41 compares the length and thickness of the bolt 51 measured above with the received order information stored in the memory, reads out the corresponding slip number and specification information, and marks the identifier 200 on the wingboard 52.

  For example, the recording unit prints the specification number 201 enclosed by a rectangular frame in FIG. The specification number 201 is a number corresponding to the specification information designated at the time of receiving an order, and is a code indicating an application for use when the turnbuckle 5 is used at a building site, that is, a building to be used. The customer who has received the delivery of the turnbuckle 5 can easily identify which building the turnbuckle 5 should be used as a material of the building by the specification number 201 printed on the feathered board 52.

  In addition, the recording unit 110 prints the bill number 202 indicated as “F 25” in FIG. 16 as the identifier 200. The bill number 202 is information that can identify each customer who is the delivery destination of the product, and is a code corresponding to the slip number at the time of receiving an order. The worker performs sorting work of allocating the turnbuckle 5 to each customer based on the bill number 202 printed on the battleboard 52, confirms the paint color and the like, and carries out the final shipping work. From the above, in the production system according to the present embodiment, not only the optimization of the production process is achieved by performing the optimal in-process calculation of the products ordered from each customer, but the disparate production is performed because the in-process calculation is performed. Items to be delivered to customers can be sorted efficiently with reference to the bill number 202. Further, since the specification number 201 is also printed on the feathered board 52, the customer who has received the product can easily identify which turnbuckle 5 to use.

  The ink jet head 118 is an example of a marking unit, and marking may be performed by other means such as marking or laser printing. Further, the content of the marking is not limited to the characters, and may be, for example, a figure, a color or the like. The light receiving unit 117b is an example of a sensor that detects the wing plate 52 of the left screw bolt 51b, and may detect the wing plate 52 of the left screw bolt 51b by other means such as an ultrasonic sensor or a contact sensor.

FIG. 17 is a flowchart illustrating an example of the processing procedure executed by the server 1. The general processing contents executed by the server 1 will be described based on FIG.
The control unit 11 of the server 1 acquires the order reception information that is the order reception information of the rod-like product having the axis part and that includes the information on the thickness and the length of the axis part (step S11). As mentioned above, the product is, for example, a turnbuckle 5 for construction. The shaft component is a bolt 51 (right-handed screw bolt 51 a) that constitutes the turnbuckle 5, and is a bolt member in which a screw portion 512 is formed at one end of the shaft portion 511. The order information is information on the turnbuckles 5 ordered by each customer, and the diameter (thickness) and length of the bolt 51, the type of the buckle barrel 53, the type of the wing plate 52, the color of the turnbuckle 5 and the number It is the information which designates etc. Further, the order information includes specification information of the turnbuckle 5. Specification information is information which shows the use of a product, and is information which shows the use object of the turnbuckle 5 which is a construction material, ie, a building. The server 1 stores the plurality of received order information ordered by each customer in the received order DB 141 (step S12).

  The control unit 11 classifies each piece of order reception information stored in the order reception DB 141 into any of a plurality of production groups (step S13). Specifically, the control unit 11 groups each received order information based on the diameter of the bolt 51, the type of the buckle cylinder 53, the type of the wing plate 52, the coating color of the turn buckle 5, and the like.

  The control unit 11 executes, for each of the production groups classified in step S13, a subroutine for generating instruction information for instructing production of a product (step S14). Specifically, the control unit 11 generates instruction information indicating a cutting pattern in which the arrangement at the time of cutting the material is optimized for each production group.

  The control unit 11 outputs the instruction information of each production group to the automatic machine 3 in the order according to the number of products produced in group units (step S15). Specifically, the control unit 11 outputs instruction information in order from the production group in which the number of production of the turnbuckle 5 is large. The control unit 11 ends the series of processes.

FIG. 18 is a flowchart illustrating an example of a processing procedure of a subroutine of instruction information generation. The processing content of the subroutine of step S14 will be described based on FIG.
The control unit 11 selects one of the plurality of production groups (step S31). The control unit 11 refers to each received order information in the selected production group, and cuts the length corresponding to the length of each of the plurality of right-handed screws 51a from the material having the thickness and the predetermined length according to the production group A cutting pattern for combining the shaft members is determined (step S32). Specifically, the control unit 11 allocates, to each material, a shaft material of the right-handed screw action having a length indicated by each order information so that the total cutting length of the shaft material is equal to or less than the material length. For example, the control unit 11 sets up a mathematical programming problem under the condition that the cutting length of each shaft material satisfies the contents of the order, the total cutting length is less than or equal to the material length, and the number of materials used is minimized. Perform a calculation process to optimize the combination of cutting lengths of the shaft material using a row generation method or the like.

  The control unit 11 assigns the right-handed screw shaft to each material in step S32, and then adds the total cut length of the right-handed screw shaft to the residual length minus the total. It is determined whether there is a material having a residual length equal to or greater than a predetermined length (step S33). Specifically, the control unit 11 determines whether or not there is a material having a residual length greater than or equal to the length of the left screw bolt 51b. When it is determined that there is no material having a residual length equal to or more than a predetermined length (S33: NO), the control unit 11 shifts the processing to step S35.

  When it is determined that there is a material having a residual length equal to or more than a predetermined length (S33: YES), the control unit 11 allocates the left-handed screw bolt 51b to the material (Step S34). Specifically, the control unit 11 allocates shafts until the residual length is less than the length of the shaft of the left screw bolt 51b. The control unit 11 stores data on a cutting pattern in which the shaft member of the bolt 51 is allocated to each material for the production group being selected (step S35). Thus, the control unit 11 generates instruction information for instructing the production of the turnbuckle 5 related to the selected production group.

  Control unit 11 determines whether generation of instruction information has been completed for all production groups (step S36). If it is determined that there is a production group for which instruction information has not been generated (S36: NO), the control unit 11 returns the process to step S31. If it is determined that generation of instruction information has been completed for all production groups (S36: YES), the control unit 11 returns a subroutine.

FIG. 19 is a flowchart illustrating an example of the processing procedure executed by the length measuring machine 4. After the turnbuckle 5 is placed on the table 43, the control unit 41 of the length measuring machine 4 performs the following processing.
The control unit 41 drives the winged board end detection unit 60 to detect the end position of the winged board 52 of the right-handed screw bolt 51a (step S51). Next, the control unit 41 drives the diameter measurement unit 70 to detect the diameter of the shaft portion 511 of the right screw bolt 51a (step S52).

  The control unit 41 drives the screw end detection unit 80 to detect the boundary position between the shaft portion 511 and the screw portion 512 of the right screw bolt 51a (step S53). The control unit 41 is based on the end position of the wing plate 52 of the right-handed screw bolt 51a detected in step S1 and the boundary position between the shaft portion 511 and the screw portion 512 of the right-handed screw bolt 51a detected in step S3. The length of the screw bolt 51 is calculated (step S54). For example, the control unit 41 adds the length of the screw portion 512 to the distance between the end of the wing plate 52 of the right-handed screw bolt 51 a and the boundary position between the shaft portion 511 and the screw portion 512. The nominal length L2 of the right-handed screw bolt 51a is calculated by subtracting the margin e1.

  The control unit 41 specifies a product corresponding to the order reception information based on the calculated length of the right-handed screw bolt 51a and the diameter of the shaft portion 511 of the right-handed screw bolt 51a detected in step S52 (step S55). For example, the control unit 41 stores the slip number at the time of receiving the order, the specification information of the product designated at the time of receiving the order, and the length and thickness of the received product in the memory. Identify the information. The control unit 11 operates the recording unit 110 to mark the identification information of the product corresponding to the order reception information on the wing plate 52 of the left screw bolt 51 b (step S56). For example, the control unit 41 prints an identifier 200 including a bill number 202 corresponding to the slip number and a specification number 201 corresponding to the product specification on the battleboard 52. The control unit 41 drives the lifter 120 to pivot the pivot rod 121 to move the turnbuckle 5 on the table 43 to the transport belt 44 (step S57), and ends the series of processes.

  Although the turnbuckle 5 including two bolts 51 and one buckle barrel 53 has been described above as an example of the turnbuckle 5, the present embodiment is not limited to this. For example, the turnbuckle 5 includes two bolts 51 to which the wing plate 52 is attached, one bolt 51 having screw portions 512 at both ends, and two buckle cylinders 53 connecting the bolts 51, so-called long It may be a turnbuckle 5 for a scale.

  As described above, according to the present embodiment, the server 1 can pool the order information and calculate the connection of the shaft members, whereby the production process can be made more efficient. Furthermore, in the present embodiment, it is possible to appropriately sort the order items of each customer that is dissipatively produced because the exchange calculation is performed. As a result, it is possible to improve the productivity of products from order acceptance to shipping.

  Further, according to the present embodiment, the length of the bolt 51 is accurately measured based on the boundary position between the shaft portion 511 and the screw portion 512 and the other end position (the position of the end of the wing plate 52) of the shaft portion 511. can do. Further, by directly recording the identification information of the product on the bolt 51 (羽 子 板 52), the worker can easily sort the product.

  Further, according to the present embodiment, the customer who has received the delivery of the product can easily identify the product by printing the specification information indicating the use of the product as the product identification information.

  Further, according to the present embodiment, the order information is grouped according to the thickness (diameter) of the bolt 51, the exchange calculation is performed for each production group, and the production instruction is output, thereby more efficient production. It can be performed. Further, by measuring the thickness of the bolt 51 in the length measuring machine 4, it is possible to identify an appropriate product.

  Further, according to the present embodiment, the remainder of the material can be reduced by instructing the production in the order according to the number of production in group units.

  Moreover, according to the present embodiment, more efficient production can be performed by allocating the left-handed screw shaft to the remaining portion of the material in the joint calculation.

  It should be understood that the embodiments disclosed herein are illustrative in all respects and not restrictive. The scope of the present invention is indicated not by the meaning described above but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

1 server (production instruction device)
2 terminal 3 automatic machine 4 length measuring machine 5 turnbuckle

Claims (7)

A production method using a production instructing device for instructing production of a product and a length measuring machine for measuring the length of the product,
The production instructing device is
Obtain order information including the length of the product,
Storing a plurality of the received order information in a storage unit;
Determining a cutting pattern in which a shaft material having a cutting length corresponding to the length indicated by each of the plurality of order reception information is assembled from a material having a predetermined length;
Generating instruction information instructing production of the product based on the determined cutting pattern;
Output the generated instruction information,
The length measuring machine
Measure the length of the product produced based on the instruction information,
A production method comprising: identifying the products corresponding to the received order information in accordance with measurement results. The product has a shaft part having a screw formed at one end of the shaft,
The length measuring machine
A first detection unit that detects a boundary position of the shaft and the screw;
A second detection unit that detects the position of the other end of the shaft component different from the one end;
An arithmetic unit that executes arithmetic processing;
And a marking unit for marking the product.
The calculation unit calculates the length of the shaft component based on the detection results of the first detection unit and the second detection unit,
The production method according to claim 1, wherein the marking unit marks identification information of each of the products on the product according to a calculation result. The order information includes specification information indicating the use of the product,
The said marking part marks the identifier corresponding to the said specification information. The production method of Claim 2 characterized by the above-mentioned. The order information includes information on the thickness of the product,
The production instructing device is
The order information is classified into a plurality of production groups according to the thickness of the product,
Determining the cutting pattern for combining the shaft members from the material having a thickness according to each of the production groups;
Generating the instruction information for each of the production groups based on the determined cutting pattern;
The length measuring machine
Measure the length and thickness of the product,
The production method according to any one of claims 1 to 3, wherein the product is identified according to the measured length and thickness of the product. The order information includes information on the number of products produced,
The production method according to claim 4, wherein the production instruction device outputs the instruction information of each of the production groups in an order according to the number of production for each production group. The product has a shaft component manufactured based on the shaft,
The production instructing device is
Assigning the shaft members corresponding to the plurality of shaft parts to the material,
The second shaft component corresponding to the shaft component if the residual length obtained by subtracting the total cutting length of the allocated shaft material from the material length after allocating the shaft material is equal to or greater than a predetermined length A manufacturing method according to any one of claims 1 to 5, wherein a shaft material is allocated to the material. A production system comprising: a production instructing device instructing production of a product; and a length measuring machine measuring a length of the product,
The production instructing device is
An acquisition unit for acquiring order information including the length of the product;
A storage unit that stores a plurality of the received order information;
A determination unit that determines a cutting pattern for combining a shaft member of a cutting length corresponding to the length indicated by each of the plurality of received order information from a material having a predetermined length;
A generation unit that generates instruction information instructing production of the product based on the determined cutting pattern;
An output unit for outputting the generated instruction information;
The length measuring machine
A measuring unit that measures the length of the product produced based on the instruction information;
And a specifying unit for specifying the product corresponding to each of the received order information in accordance with the measurement result.

Images