WO2019202930A1 - Device for manufacturing pressed product - Google Patents

Device for manufacturing pressed product Download PDF

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Publication number
WO2019202930A1
WO2019202930A1 PCT/JP2019/013099 JP2019013099W WO2019202930A1 WO 2019202930 A1 WO2019202930 A1 WO 2019202930A1 JP 2019013099 W JP2019013099 W JP 2019013099W WO 2019202930 A1 WO2019202930 A1 WO 2019202930A1
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WO
WIPO (PCT)
Prior art keywords
press
steel plate
pilot hole
mold
pilot
Prior art date
Application number
PCT/JP2019/013099
Other languages
French (fr)
Japanese (ja)
Inventor
武 本田
Original Assignee
日本電産株式会社
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 日本電産株式会社 filed Critical 日本電産株式会社
Priority to CN201980026595.9A priority Critical patent/CN111989213A/en
Publication of WO2019202930A1 publication Critical patent/WO2019202930A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B13/00—Methods of pressing not special to the use of presses of any one of the preceding main groups
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching

Definitions

  • the present invention relates to a press-processed product manufacturing apparatus.
  • a press mold apparatus in which a strip-shaped steel plate is fed between molds and punched to perform product punching.
  • die is provided with the some process area
  • a strip-shaped steel plate is aligned with each processing region using a pilot pin in each processing region, and then shaped into a shape determined for each processing region. Press work. *
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2011-239678 discloses a press mold apparatus in which a processing region is divided into a plurality of molds.
  • the press die apparatus of Patent Document 1 includes a main press working apparatus and an auxiliary press working apparatus.
  • the auxiliary press working apparatus forms second pilot holes in the parts that have been disposed of in the past, and positioning is performed using the second pilot holes. Do. Thereby, the metal thin plate of the part to be disposed of can be effectively used.
  • An object of the present invention is to provide a press-processed product manufacturing apparatus that can improve the positioning accuracy of press processing in a mold and can eliminate an error in accuracy when the mold is divided.
  • a press-processed product manufacturing apparatus is a press-processed product manufacturing apparatus that manufactures a press-processed product by pressing a strip-shaped steel plate with a plurality of dies, respectively.
  • Each of the molds includes a pilot hole forming portion for forming a pilot hole at a different position of the steel plate for each of the plurality of molds, a pilot pin inserted into a pilot hole formed for each of the plurality of molds, and the pilot And a press working part that presses the steel plate positioned by inserting the pilot pin into the hole into a predetermined shape.
  • FIG. 1 is a perspective view schematically showing a schematic configuration of a press-processed product manufacturing apparatus according to an embodiment.
  • FIG. 2 is a diagram schematically showing the attachment structure of the first mold and the second mold attached to the fixed platen.
  • FIG. 3 is a perspective view showing a schematic configuration of the motor core member.
  • FIG. 4 is a view showing a state of the steel sheet after press working performed for each working region of the mold.
  • FIG. 5 is a diagram illustrating a configuration of a mold mating surface of the first lower mold.
  • FIG. 6 is a diagram showing the configuration of the mold mating surface of the second lower mold.
  • FIG. 7 is a flowchart showing a process of manufacturing a motor core member by the press-processed product manufacturing apparatus of FIG.
  • FIG. 8 is a diagram illustrating a configuration of a mold mating surface of a first lower mold according to a modification.
  • the vertical direction of the press-processed product manufacturing apparatus 1 is referred to as “vertical direction”, and the horizontal direction of the press-processed product manufacturing apparatus 1 is “lateral direction”. That's it.
  • the feeding direction of the strip-shaped steel plate is referred to as “feeding direction”, and the direction perpendicular to the feeding direction is referred to as “width direction”.
  • FIG. 1 is a perspective view which shows schematic structure of the press work product manufacturing apparatus 1 which concerns on embodiment of this invention.
  • the press-processed product manufacturing apparatus 1 manufactures a press-processed product by pressing a strip-shaped steel plate 100 with a mold 4. *
  • the press-processed product manufacturing apparatus 1 forms the core member 50 for motors which is a product part by stamping the strip-shaped steel plate 100.
  • the press-processed product manufacturing apparatus 1 includes a fixed platen 2 and a movable platen 3.
  • the movable platen 3 is positioned above the fixed platen 2 at a predetermined interval in the vertical direction with respect to the fixed platen 2.
  • the movable platen 3 is movable in the vertical direction, and can be separated from the fixed platen 2.
  • the lower mold 4 a is fixed to the upper surface of the stationary platen 2.
  • the upper mold 4 b is fixed to the lower surface of the movable platen 3.
  • the lower mold 4 a includes a first lower mold 5 a and a second lower mold 6 a that are divided into two in the feed direction of the steel plate 100.
  • the upper mold 4b includes a first upper mold 5b and a second upper mold 6b that are divided into two in the feed direction of the steel plate 100.
  • the first lower mold 5a and the second lower mold 6a are fixed to the stationary platen 2 with their relative positions specified.
  • the stationary platen 2 has a mold installation surface 2 a that fixes the lower mold 4 a and extends in the lateral direction.
  • the stationary platen 2 has a plurality of positioning pins 7 that determine the mounting positions of the first lower mold 5a and the second lower mold 6a on the mold installation surface 2a.
  • the positioning pins 7 include four positioning pins 7a arranged in the feed direction and positioning pins 7b positioned laterally with respect to the four positioning pins 7a. *
  • three positioning pins 7a and 7b are arranged in an L shape in order to specify the position of the first lower mold 5a when viewed from the vertical direction.
  • three positioning pins 7a and 7b are arranged in an L shape in order to specify the position of the second lower mold 6a when viewed from above and below.
  • the fixing positions of the first lower mold 5a and the second lower mold 6a with respect to the mold installation surface 2a are the positioning pins 7a and 7b and the width direction end surfaces 5c and 6c and the feed direction end surfaces 5d and 6d. Specified by *
  • the two positioning pins 7a arranged in the feeding direction are brought together with the width direction end surfaces 5c and 6c of the first lower mold 5a and the second lower mold 6a, so that the first relative to the mold installation surface 2a can be obtained.
  • the positions in the width direction of the first lower mold 5a and the second lower mold 6a are determined.
  • the width direction end faces 5c and 6c and the feed direction end faces 5d and 6d of the first lower mold 5a and the second lower mold 6a are placed on the positioning pins 7a aligned in the feed direction and the positioning pins 7b located in the width direction.
  • the lower mold 4a and the upper mold 4b have mold mating surfaces 20 and 30 having press working portions 8 and 9 for punching the steel plate 100, respectively. *
  • the press working portions of the first lower mold 5a, the second lower mold 6a, the first upper mold 5b, and the second upper mold 6b have a plurality of processing regions 21 and 31, respectively.
  • the plurality of processing regions 21 and 31 are positioned side by side in the feed direction of the first lower mold 5a, the second lower mold 6a, the first upper mold 5b, and the second upper mold 6b.
  • the processing areas 21 and 31 of the press processing portions 8 and 9 have blade edges 20a and 30a that can be punched such as drilling and outer shape punching. Details of the press working portions 8 and 9 and the processing regions 21 and 31 will be described later. *
  • the lower mold 4a and the upper mold 4b are formed by punching the strip-shaped steel plates aligned with the respective processing regions 21 and 31 in the respective processing regions 21 and 31, thereby providing a motor core member 50.
  • the motor core member 50 is a member for constituting a stator core of a motor (not shown). That is, the stator core includes a motor core member 50 that is laminated in the thickness direction of the motor core member 50. Since the configuration of the stator core of the motor is the same as that of the conventional stator core, detailed description thereof is omitted. *
  • the motor core member 50 has an annular shape having a central hole 51 at the center.
  • a plurality of protrusions 56a arranged in the circumferential direction at a predetermined angle are formed on the outer edge 56 of the motor core member 50.
  • the protrusion 56a is used for circumferential alignment in the step of stacking the motor core member 50.
  • the motor core member 50 includes an annular yoke portion 52 and a plurality of teeth 53 extending radially inward from the yoke portion 52 in the radial direction. Slots 55 are formed on both sides in the circumferential direction of the teeth 53.
  • the yoke portion 52 has a plurality of caulking portions 54.
  • the caulking portion 54 is used for fixing the motor core members 50 in the stacking process of the motor core members 50 when the stator core is manufactured.
  • FIG. 4 is a diagram schematically showing how the motor core member 50 is formed from the steel plate 100 by punching.
  • FIG. 5 is a diagram showing the configuration of the mold mating surface 20 of the first lower mold 5a.
  • FIG. 6 is a diagram showing the configuration of the mold mating surface 30 of the second lower mold 6a. *
  • the die mating surface 20 of the first lower die 5a and the die mating surface of the second lower die 6a have the press working portions 8 and 9 each having a plurality of processing regions 21 and 31.
  • the first upper mold 5b and the second upper mold 6b have a mold mating surface (not shown).
  • the first lower mold 5a, the first upper mold 5b, the second lower mold 6a, and the second upper mold 6b are cut by the cutting edges 20a, 30a formed on the respective mold mating surfaces. , 30a, the steel plate 100 is pressed. *
  • the configuration of the mold mating surfaces of the first upper mold 5b and the second upper mold 6b is the mold mating surface 20 of the first lower mold 5a and the mold mating surface of the second lower mold 6a. 30.
  • the configuration of the mold mating surface 20 of the first lower mold 5a and the mold mating surface 30 of the second lower mold 6a will be mainly described, and the first upper mold 5b and the second mold 5a will be described.
  • Detailed description of the second upper mold 6b is omitted.
  • Each of the steps includes, for example, a punching step for forming the central hole 51 and the slot 55 of the yoke portion 52 in the steel plate 100, an outer shape punching step for forming the outer shape of the motor core member 50 in the steel plate 100, and the like.
  • FIG. 4 is a diagram showing a state of the steel plate 100 after press working performed for each of the processing regions 21 and 31 of the mold 4. The steel plate 100 is pressed by the plurality of processing regions, whereby the motor core member 50 shown in FIG. 3 is formed. *
  • the mold 4 As shown in FIG. 4 to FIG. 6, the mold 4 according to the present embodiment has so-called two dies in which two rows of processing regions 21 and 31 are positioned in the width direction of the steel plate 100 in the press processing portions 8 and 9. It is a mold for removing. *
  • a plurality of processing regions 21 and 31 are arranged in the feed direction. As described above, each of the processing regions 21 and 31 has the blade edges 20a and 30a on the die mating surfaces 20 and 30.
  • the first lower mold 5a and the first upper mold 5b, and the second lower mold 6a and the second upper mold 6b press the steel plate 100 into the shapes of the cutting edges 20a and 30a. For this reason, it is necessary to feed the steel plate 100 to the die 4 in the feeding direction while sequentially aligning the steel plate 100 with the processing regions 21 and 31 of the die 4.
  • the first pilot hole 10 and the second pilot hole 15 formed in the steel plate 100 are used for positioning the steel plate 100 with respect to the processing regions 21 and 31.
  • the first lower mold 5a forms the first pilot holes 10 in the steel plate 100 as the first step. Therefore, the first lower mold 5 a has a first pilot hole forming portion 22 for forming the first pilot hole 10 in the steel plate 100.
  • the second lower mold 6a forms the second pilot hole 15 in the steel plate 100 as the first step. Therefore, the second lower mold 6 a has a second pilot hole forming portion 32 for forming the second pilot hole 15 in the steel plate 100.
  • the mold mating surface 20 of the first lower mold 5a has the pilot hole forming portion 22 for forming the first pilot hole 10 first. Further, the die mating surface 20 of the first lower die 5 a has a press working portion 8 on the downstream side in the feed direction of the first pilot hole forming portion 22.
  • the press working unit 8 has a plurality of working regions 21. *
  • the first pilot hole forming portion 22 is formed in the scrap portion 101 remaining in the steel plate 100 after the motor core member 50 as a product portion is formed from the steel plate 100.
  • the first pilot holes 10 are formed at both ends of the steel plate 100 in the width direction.
  • the first pilot holes 10 formed by the first lower mold 5a are formed in the scrap portion 101 of the steel plate as described above. Moreover, the diameter dimension of the 1st pilot hole 10 is not specifically limited, According to the magnitude
  • the press working part 8 has a plurality of working regions 21 as described above.
  • Each processing region 21 is arranged in two rows in the width direction of the steel plate 100.
  • the positions of the machining areas 21 arranged in two rows are shifted in the feed direction. Thereby, with respect to the steel plate 100, the yield of the core member 50 for motors which is a product can be made high.
  • each processing region 21 presses a different portion of the motor core member 50. Therefore, each process area
  • the protruding portions 56a arranged in the circumferential direction at predetermined angles are formed on the outer edge 56 of the motor core member 50.
  • a central hole 51 is formed in the next machining area following the machining area 21a located on the most upstream side. Note that the arrangement order of these processing regions is not particularly limited. *
  • the first lower mold 5 a has a plurality of first pilot pins 23 that are inserted into the first pilot holes 10 of the steel plate 100 in order to align the steel plate 100 with each processing region 21.
  • the plurality of first pilot pins 23 have a shape protruding upward from the mold mating surface 20 of the first lower mold 5a.
  • Each first pilot pin 23 is located in the vicinity of each processing region 21.
  • the plurality of first pilot pins 23 are positioned at equal intervals in the feed direction of the steel plate 100, as in the machining region 21 positioned at equal intervals in the feed direction of the steel plate 100.
  • the first lower mold 5 a has at least three first pilot pins 23.
  • the mold mating surface 30 of the second lower mold 6a has the second pilot hole forming portion 32 for forming the second pilot hole 15 first. Further, the die mating surface 30 of the second lower die 6 a has the press working portion 9 on the downstream side in the feed direction of the second pilot hole forming portion 32.
  • the press working unit 9 has a plurality of working regions 31. *
  • the second pilot hole forming portion 32 is formed in the scrap portion 101 remaining in the steel plate 100 after the motor core member 50 as a product portion is formed from the steel plate 100.
  • the 2nd pilot hole 15 is formed in the position different from the 1st pilot hole 10 formed of the width direction both ends of the steel plate 100, and the 1st lower side metal mold
  • the second pilot hole 15 formed by the second lower mold 6a has the same diameter as the first pilot hole 10 formed by the first lower mold 5a.
  • the press working part 9 has a plurality of working regions 31 as described above.
  • Each processing region 31 is arranged in two rows in the width direction of the steel plate 100 as in the first lower mold 5a.
  • the positions of the machining areas 31 arranged in two rows are shifted in the feed direction. Thereby, with respect to the steel plate 100, the yield of the core member 50 for motors which is a product can be made high.
  • each processing region 31 presses a different portion of the motor core member 50. Therefore, each processing region 31 has a cutting edge 30a having a shape corresponding to each pressing step.
  • a plurality of caulking portions 54 that are positioned on the yoke portion 52 of the motor core member 50 are formed in the machining region 31 a that is located on the most upstream side in the feed direction in the left column of the figure.
  • holes of slots 55 forming a plurality of teeth 53 are formed.
  • the second lower mold 6 a has a plurality of second pilot pins 33 inserted into the second pilot holes 15 of the 100 in order to align the steel plate 100 with each processing region 31.
  • the plurality of second pilot pins 33 have a shape protruding upward from the die mating surface 30 of the second lower die 6a.
  • the second pilot pin 33 is located in the vicinity of each processing region 31. *
  • the 2nd pilot pin 33 is located in the feed direction of the steel plate 100 at equal intervals similarly to the process area
  • the second lower mold 6 a has 13 pilot pins 33. Accordingly, the second mold pins 6a and 6b can be inserted into the three or more second pilot holes 15 formed in the steel plate 100 because the positioning second pilot pins 33 respectively corresponding to the processing regions 31 can be inserted. In contrast, the steel plate 100 can be positioned more accurately. *
  • the second lower mold 6 a has a third pilot hole forming portion 34 that forms the third pilot hole 16 at a position different from the second pilot hole 15.
  • the ratio of the punched portion of the steel plate 100 is increased on the downstream side. For this reason, the scrap portion 101 remaining on the steel plate 100 is likely to be displaced.
  • the third pilot hole 16 can further increase the accuracy of alignment of the steel plate 100 in a state where the number of punched portions is increased.
  • a third pilot pin 35 positioned in the downstream processing region 31 is inserted into the third pilot hole 16 formed by the third pilot hole forming portion 34.
  • the second pilot pins 35 have a shape protruding upward from the die mating surface 30 of the second lower die 6a, and are positioned at equal intervals in the feed direction.
  • the positioning accuracy of the processing position can be improved in each mold, and when the molds are divided Accuracy error can be eliminated.
  • it can press on a steel plate with the some metal mold
  • the movable platen 3 is raised and the lower mold 4a and the upper mold 4b are opened (step S1). Thereby, it becomes possible to feed the strip-shaped steel plate 100 between the lower mold 4a and the upper mold 4b.
  • the strip-shaped steel plate 100 is passed over the lower mold 4a, and a specific portion of the steel plate 100 is positioned at a predetermined position on the upper surface of the first lower mold 5a (step S2). Since the alignment of the steel plate 100 with respect to the first lower mold 5a is the same as the alignment of the steel plate in the conventional press-processed product manufacturing apparatus, detailed description thereof is omitted.
  • step S3 This step is a first pilot hole forming step.
  • step S4 the steel plate 100 is fed, and the steel plate 100 is aligned with the processing region 21 located on the downstream side in the feed direction of the first pilot hole forming portion 22 (step S4).
  • the feed amount of the steel plate 100 at this time is determined by the pitch between the processing regions 21 of the mold 4.
  • step S5 the first pilot pin 23 in the processing region 21 is inserted into the first pilot hole 10 formed in the steel plate 100 in the first pilot hole forming step (step S5). Thereby, the first lower mold 5a and the steel plate 100 are aligned.
  • step S6 This step is the first press working step.
  • steps S4 to S6 are repeated according to the number of processing regions 21 included in the first lower mold 5a and the first upper mold 5b.
  • the specific portion of the steel plate 100 has the first lower mold 5a and the first lower mold 5a. It is discharged outside the first upper mold 5b and sent to the second lower mold 6a and the second upper mold 6b.
  • the strip-shaped steel plate 100 is passed over the lower mold 4a, and a specific portion of the steel plate 100 is positioned at a predetermined position on the upper surface of the second lower mold 6a (step S7). Since the alignment of the steel plate 100 with respect to the second lower mold 6a is the same as the alignment of the steel plate in the conventional press-processed product manufacturing apparatus, detailed description thereof is omitted.
  • step S8 This step is a second pilot hole forming step.
  • the steel plate 100 is fed, and a specific portion of the steel plate 100 is aligned with the processing region 31 located on the downstream side in the feed direction of the second pilot hole forming portion 32 (step S9).
  • the feed amount of the steel plate 100 at this time is determined by the pitch between the processing regions 21 of the mold 4.
  • the second pilot pin 33 in the processing region 31 is inserted into the second pilot hole 15 formed in the specific portion of the steel plate 100 (step S10). Thereby, the 2nd lower side metal mold
  • step S11 the press working corresponding to the working region is performed by the second lower die 6a and the second upper die 6b.
  • This step is the second press working step.
  • steps S9 to S11 are repeatedly performed according to the number of processing regions 31 arranged in the feed direction of the second lower mold 6a and the second upper mold 6b.
  • the press-processed product manufacturing apparatus 1 forms the pilot holes 10 and 15 at different positions for each of the plurality of molds 5a, 5b, 6a, and 6b, and thus each mold 5a, 5b, 6a, and 6b. Therefore, the positioning accuracy of the machining position can be improved, and the accuracy error when the mold is divided can be eliminated. Thereby, since the steel plate 100 can be pressed by the plurality of molds 5a, 5b, 6a, 6b, a multi-process press-processed product can be manufactured with a small machine tool. *
  • both the first pilot hole 10 and the second pilot hole 15 are formed at the end in the width direction of the steel plate 100.
  • the first pilot hole 10 may be formed anywhere as long as it is a portion that becomes a scrap portion in the processing step after the first pilot hole is formed.
  • the first lower mold 65a is formed in the steel plate 100 after the press working by the first lower mold 65a in the steel plate 100 in a plan view. You may form the 1st pilot hole 62 in the part 61 located inside and used as a scrap part. In other words, the first lower mold 65a has a first pilot hole forming portion 62 capable of forming a first pilot hole in a portion 61 to be a scrap portion in the steel plate 100.
  • the portion 61 formed by punching the central hole 51 can be exemplified as the portion 61 that is located inside the outer shape of the press-processed product after being pressed by the first lower mold 65a and becomes a scrap portion.
  • the pilot hole is formed in the scrap portion 61 positioned on the inner side of the outer shape of the press-worked product in the steel plate 100 when the steel plate 100 is viewed in a plan view.
  • the yield can be improved as compared with the case of forming 10.
  • the motor core member 50 is described as a press-processed product.
  • the press-processed product is not limited to the motor core member, and includes a member manufactured by press processing.
  • the present invention can be applied to a press-processed product manufacturing apparatus that manufactures press-processed products by press-working strip-shaped steel plates with a plurality of dies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

[Problem] To provide a device for manufacturing a pressed product with which positioning precision of a processing position in a mold can be improved, and precision error when the mold is split can be eliminated. [Solution] A device 1 for manufacturing a pressed product, in which a pressed product 50 is manufactured by a belt-shaped steel plate 100 being pressed by each of a plurality of molds 5a, 5b, 6a, 6b. Each of the plurality of molds 5a, 5b, 6a, 6b has: pilot-hole-forming parts 22, 32 that form pilot holes at different positions of the steel sheet for each of the plurality of molds; pilot pins 23, 33 inserted into the pilot holes 22, 32 formed in each of the plurality of molds; and pressing parts 8, 9 that press the steel plate 100, which has been positioned due to the pilot pins 23, 33 being inserted into the pilot holes 22, 32, into a prescribed shape.

Description

プレス加工製品製造装置Pressed product manufacturing equipment
本発明は、プレス加工製品製造装置に関する。 The present invention relates to a press-processed product manufacturing apparatus.
帯状の鋼板を金型の間に送り込み、プレス加工して製品を打ち抜くプレス金型装置が知られている。この金型は、順次送り込まれた帯状の鋼板に、それぞれ決められたプレス加工を行う複数の加工領域を備える。複数の加工領域を有する金型を用いたプレス加工では、帯状の鋼板を、それぞれの加工領域のパイロットピンを用いて、それぞれの加工領域に位置合わせした後、加工領域ごとに決められた形状にプレス加工する。　 2. Description of the Related Art A press mold apparatus is known in which a strip-shaped steel plate is fed between molds and punched to perform product punching. This metal mold | die is provided with the some process area | region which performs the respectively determined press work to the strip | belt-shaped steel plate sent in sequentially. In press working using a mold having a plurality of processing regions, a strip-shaped steel plate is aligned with each processing region using a pilot pin in each processing region, and then shaped into a shape determined for each processing region. Press work. *
このような複数の加工領域を有する金型における加工領域の数が多くなると、金型のサイズが鋼板送り方向に大きくなるため、大型のプレス金型装置が必要になる。このため、加工領域が複数の金型に分割されたプレス金型装置が、例えば、特許文献１（特開２０１１－２３９６７８号公報）に記載されている。　 When the number of machining areas in such a mold having a plurality of machining areas increases, the size of the mold increases in the steel sheet feeding direction, and thus a large press mold apparatus is required. For this reason, for example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-239678) discloses a press mold apparatus in which a processing region is divided into a plurality of molds. *
特許文献１のプレス金型装置は、主プレス加工装置と補助プレス加工装置とを備える。前記補助プレス加工装置は、鋼板の全体に規則的にパイロット孔を形成する以外に、従来廃棄処分されていた部分に第２のパイロット孔を形成し、当該第２のパイロット孔を用いて位置決めを行う。これにより、廃棄処分される部分の金属薄板を有効利用することができる。 The press die apparatus of Patent Document 1 includes a main press working apparatus and an auxiliary press working apparatus. In addition to regularly forming pilot holes in the entire steel plate, the auxiliary press working apparatus forms second pilot holes in the parts that have been disposed of in the past, and positioning is performed using the second pilot holes. Do. Thereby, the metal thin plate of the part to be disposed of can be effectively used.
特開２０１１－２３９６７８号公報JP 2011-239678 A
しかし、分割された複数の金型に共通するパイロット孔を用いて鋼板の位置合わせを行うと、分割された金型の相対位置をより高精度に調整する必要があった。　 However, if the steel plates are aligned using pilot holes common to the plurality of divided molds, it is necessary to adjust the relative positions of the divided molds with higher accuracy. *
本発明の目的は、金型においてプレス加工の位置決め精度を向上でき、金型を分割した際の精度誤差をなくすことができるプレス加工製品製造装置を提供することである。 An object of the present invention is to provide a press-processed product manufacturing apparatus that can improve the positioning accuracy of press processing in a mold and can eliminate an error in accuracy when the mold is divided.
本発明の第１の観点によるプレス加工製品製造装置は、複数の金型によって帯状の鋼板をそれぞれプレス加工することにより、プレス加工製品を製造するプレス加工製品製造装置であって、　前記複数の金型は、それぞれ、　前記複数の金型毎に前記鋼板の異なる位置にパイロット孔を形成するパイロット孔形成部と、　前記複数の金型毎に形成されたパイロット孔に挿入されるパイロットピンと、　前記パイロット孔に前記パイロットピンが挿入されることで位置決めされた前記鋼板を所定の形状にプレス加工するプレス加工部と、を有する。 A press-processed product manufacturing apparatus according to a first aspect of the present invention is a press-processed product manufacturing apparatus that manufactures a press-processed product by pressing a strip-shaped steel plate with a plurality of dies, respectively. Each of the molds includes a pilot hole forming portion for forming a pilot hole at a different position of the steel plate for each of the plurality of molds, a pilot pin inserted into a pilot hole formed for each of the plurality of molds, and the pilot And a press working part that presses the steel plate positioned by inserting the pilot pin into the hole into a predetermined shape.
以上の構成により、各金型において加工位置の位置決め精度を向上でき、金型を分割した際の精度誤差をなくすことができる。 With the above configuration, it is possible to improve the positioning accuracy of the machining position in each mold, and it is possible to eliminate an accuracy error when the mold is divided.
図１は、実施形態に係るプレス加工製品製造装置の概略構成を模式的に示す斜視図である。FIG. 1 is a perspective view schematically showing a schematic configuration of a press-processed product manufacturing apparatus according to an embodiment. 図２は、固定盤に取り付けられる第１金型及び第２金型の取り付け構造を模式的に示す図である。FIG. 2 is a diagram schematically showing the attachment structure of the first mold and the second mold attached to the fixed platen. 図３は、モータ用コア部材の概略構成を示す斜視図である。FIG. 3 is a perspective view showing a schematic configuration of the motor core member. 図４は、金型の加工領域ごとに行われるプレス加工後の鋼板の状態を示す図である。FIG. 4 is a view showing a state of the steel sheet after press working performed for each working region of the mold. 図５は、第１下側金型の金型合わせ面の構成を示す図である。FIG. 5 is a diagram illustrating a configuration of a mold mating surface of the first lower mold. 図６は、第２下側金型の金型合わせ面の構成を示す図である。FIG. 6 is a diagram showing the configuration of the mold mating surface of the second lower mold. 図７は、図１のプレス加工製品製造装置によりモータ用コア部材を製造する工程を示すフローチャートである。FIG. 7 is a flowchart showing a process of manufacturing a motor core member by the press-processed product manufacturing apparatus of FIG. 図８は、変形例にかかる第１下側金型の金型合わせ面の構成を示す図である。FIG. 8 is a diagram illustrating a configuration of a mold mating surface of a first lower mold according to a modification.
以下、図面を参照し、本発明の実施の形態を詳しく説明する。なお、図中の同一または相当部分については同一の符号を付してその説明は繰り返さない。また、各図中の構成部材の寸法は、実際の構成部材の寸法及び各構成部材の寸法比率等を忠実に表していない。　 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected about the same or an equivalent part in a figure, and the description is not repeated. Moreover, the dimension of the structural member in each figure does not faithfully represent the actual dimension of the structural member, the dimensional ratio of each structural member, or the like. *
なお、以下の説明において、プレス加工製品製造装置１を設置した状態で、プレス加工製品製造装置１の上下方向を「上下方向」といい、プレス加工製品製造装置１の水平方向を「横方向」という。また、水平方向のうち、帯状の鋼板の送り方向を「送り方向」といい、送り方向に直行する方向を「幅方向」という。　 In the following description, with the press-processed product manufacturing apparatus 1 installed, the vertical direction of the press-processed product manufacturing apparatus 1 is referred to as “vertical direction”, and the horizontal direction of the press-processed product manufacturing apparatus 1 is “lateral direction”. That's it. Further, among the horizontal directions, the feeding direction of the strip-shaped steel plate is referred to as “feeding direction”, and the direction perpendicular to the feeding direction is referred to as “width direction”. *
また、以下の説明において、“固定”、“接続”及び“取り付ける”等（以下、固定等）の表現は、部材同士が直接、固定等されている場合だけでなく、他の部材を介して固定等されている場合も含む。すなわち、以下の説明において、固定等の表現には、部材同士の直接的及び間接的な固定等の意味が含まれる。　 In the following description, the expressions “fixed”, “connected”, “attached”, etc. (hereinafter “fixed”, etc.) are not only used when the members are directly fixed, but also via other members. This includes cases where they are fixed. That is, in the following description, expressions such as fixation include the meanings of direct and indirect fixation between members. *
（全体構成）　図１は、本発明の実施形態に係るプレス加工製品製造装置１の概略構成を示す斜視図である。プレス加工製品製造装置１は、帯状の鋼板１００を金型４によりプレス加工することにより、プレス加工製品を製造する。　 (Whole structure) FIG. 1: is a perspective view which shows schematic structure of the press work product manufacturing apparatus 1 which concerns on embodiment of this invention. The press-processed product manufacturing apparatus 1 manufactures a press-processed product by pressing a strip-shaped steel plate 100 with a mold 4. *
以下の実施形態では、プレス加工製品製造装置１により帯状の鋼板を打ち抜いて、プレス加工製品としてのモータ用コア部材５０を加工する例について説明するが、他の用途に用いられるプレス加工製品の製造についても、同様に本実施形態の構成を適用することができる。　 In the following embodiment, an example in which a strip-shaped steel plate is punched by the press-processed product manufacturing apparatus 1 to process the motor core member 50 as the press-processed product will be described. However, manufacture of a press-processed product used for other applications is described. Similarly, the configuration of the present embodiment can be applied. *
プレス加工製品製造装置１は、帯状の鋼板１００を打ち抜き加工することで、製品部であるモータ用コア部材５０を形成する。詳しくは、プレス加工製品製造装置１は、上下方向に相対的に開閉する下側金型４ａ及び上側金型４ｂを備える。プレス加工製品製造装置１は、下側金型４ａの上面に位置づけられた鋼板１００を上側金型４ｂで打ち抜き加工する。　 The press-processed product manufacturing apparatus 1 forms the core member 50 for motors which is a product part by stamping the strip-shaped steel plate 100. FIG. Specifically, the press-processed product manufacturing apparatus 1 includes a lower mold 4a and an upper mold 4b that open and close relatively in the vertical direction. The press-processed product manufacturing apparatus 1 punches the steel plate 100 positioned on the upper surface of the lower mold 4a with the upper mold 4b. *
プレス加工製品製造装置１は、固定盤２と可動盤３とを有する。可動盤３は、固定盤２の上方位置に、固定盤２に対して上下方向に所定の間隔で位置する。可動盤３は、上下方向に移動可能であり、固定盤２に対して離接可能である。　 The press-processed product manufacturing apparatus 1 includes a fixed platen 2 and a movable platen 3. The movable platen 3 is positioned above the fixed platen 2 at a predetermined interval in the vertical direction with respect to the fixed platen 2. The movable platen 3 is movable in the vertical direction, and can be separated from the fixed platen 2. *
下側金型４ａは、固定盤２の上面に固定される。上側金型４ｂは、可動盤３の下面に固定される。　 The lower mold 4 a is fixed to the upper surface of the stationary platen 2. The upper mold 4 b is fixed to the lower surface of the movable platen 3. *
また、下側金型４ａは、鋼板１００の送り方向に２つに分割された第１下側金型５ａ及び第２下側金型６ａを有する。上側金型４ｂは、鋼板１００の送り方向に２つに分割された第１上側金型５ｂ及び第２上側金型６ｂを有する。　 The lower mold 4 a includes a first lower mold 5 a and a second lower mold 6 a that are divided into two in the feed direction of the steel plate 100. The upper mold 4b includes a first upper mold 5b and a second upper mold 6b that are divided into two in the feed direction of the steel plate 100. *
第１下側金型５ａ及び第２下側金型６ａは、相対位置が特定された状態で固定盤２に固定される。具体的には、図２に示すように、固定盤２は、下側金型４ａを固定し、横方向に延びる金型設置面２ａを有する。固定盤２は、金型設置面２ａに、第１下側金型５ａ及び第２下側金型６ａの取り付け位置を決める複数の位置決めピン７を有する。　 The first lower mold 5a and the second lower mold 6a are fixed to the stationary platen 2 with their relative positions specified. Specifically, as shown in FIG. 2, the stationary platen 2 has a mold installation surface 2 a that fixes the lower mold 4 a and extends in the lateral direction. The stationary platen 2 has a plurality of positioning pins 7 that determine the mounting positions of the first lower mold 5a and the second lower mold 6a on the mold installation surface 2a. *
位置決めピン７は、送り方向に並ぶ４つの位置決めピン７ａと、４つの位置決めピン７ａに対して横方向に位置する位置決めピン７ｂとを含む。　 The positioning pins 7 include four positioning pins 7a arranged in the feed direction and positioning pins 7b positioned laterally with respect to the four positioning pins 7a. *
金型設置面２ａには、上下方向から見て、第１下側金型５ａの位置を特定するために３つの位置決めピン７ａ，７ｂがＬ字状に並ぶ。また、金型設置面２ａには、上下方向から見て、第２下側金型６ａの位置を特定するために３つの位置決めピン７ａ，７ｂがＬ字状に並ぶ。金型設置面２ａに対する第１下側金型５ａ及び第２下側金型６ａの固定位置は、位置決めピン７ａ，７ｂに、幅方向端面５ｃ、６ｃ及び送り方向端面５ｄ，６ｄを付き合わせることで特定される。　 On the mold installation surface 2a, three positioning pins 7a and 7b are arranged in an L shape in order to specify the position of the first lower mold 5a when viewed from the vertical direction. In addition, on the mold installation surface 2a, three positioning pins 7a and 7b are arranged in an L shape in order to specify the position of the second lower mold 6a when viewed from above and below. The fixing positions of the first lower mold 5a and the second lower mold 6a with respect to the mold installation surface 2a are the positioning pins 7a and 7b and the width direction end surfaces 5c and 6c and the feed direction end surfaces 5d and 6d. Specified by *
具体的には、送り方向に並ぶ２つの位置決めピン７ａに第１下側金型５ａ及び第２下側金型６ａの幅方向端面５ｃ、６ｃを付き合わせることで、金型設置面２ａに対する第１下側金型５ａ及び第２下側金型６ａの幅方向位置が決定する。また、送り方向に並ぶ位置決めピン７ａ及び幅方向に位置する位置決めピン７ｂに、第１下側金型５ａ及び第２下側金型６ａの幅方向端面５ｃ、６ｃ及び送り方向端面５ｄ，６ｄを付き合わせることで、金型設置面２ａに対する第１下側金型５ａ及び第２下側金型６ａの送り方向位置が決定する。　 Specifically, the two positioning pins 7a arranged in the feeding direction are brought together with the width direction end surfaces 5c and 6c of the first lower mold 5a and the second lower mold 6a, so that the first relative to the mold installation surface 2a can be obtained. The positions in the width direction of the first lower mold 5a and the second lower mold 6a are determined. In addition, the width direction end faces 5c and 6c and the feed direction end faces 5d and 6d of the first lower mold 5a and the second lower mold 6a are placed on the positioning pins 7a aligned in the feed direction and the positioning pins 7b located in the width direction. By associating, the feed direction positions of the first lower mold 5a and the second lower mold 6a with respect to the mold installation surface 2a are determined. *
下側金型４ａ及び上側金型４ｂは、それぞれ、鋼板１００を打ち抜き加工するプレス加工部８，９を有する金型合わせ面２０,３０を有する。　 The lower mold 4a and the upper mold 4b have mold mating surfaces 20 and 30 having press working portions 8 and 9 for punching the steel plate 100, respectively. *
第１下側金型５ａ、第２下側金型６ａ、第１上側金型５ｂ及び第２上側金型６ｂのプレス加工部は、それぞれ、複数の加工領域２１，３１を有する。複数の加工領域２１，３１は、第１下側金型５ａ、第２下側金型６ａ、第１上側金型５ｂ及び第２上側金型６ｂ送り方向に並んで位置する。　 The press working portions of the first lower mold 5a, the second lower mold 6a, the first upper mold 5b, and the second upper mold 6b have a plurality of processing regions 21 and 31, respectively. The plurality of processing regions 21 and 31 are positioned side by side in the feed direction of the first lower mold 5a, the second lower mold 6a, the first upper mold 5b, and the second upper mold 6b. *
プレス加工部８，９の加工領域２１，３１は、穴あけ、外形抜きなどの打ち抜き加工が可能な刃先２０ａ，３０ａを有する。プレス加工部８、９及び加工領域２１，３１についての詳細は、後述する。　 The processing areas 21 and 31 of the press processing portions 8 and 9 have blade edges 20a and 30a that can be punched such as drilling and outer shape punching. Details of the press working portions 8 and 9 and the processing regions 21 and 31 will be described later. *
下側金型４ａ，上側金型４ｂは、それぞれの加工領域２１，３１に対して位置合わせされた帯状鋼板を、それぞれの加工領域２１，３１で打ち抜き加工を行うことにより、モータ用コア部材５０を形成する。　 The lower mold 4a and the upper mold 4b are formed by punching the strip-shaped steel plates aligned with the respective processing regions 21 and 31 in the respective processing regions 21 and 31, thereby providing a motor core member 50. Form. *
モータ用コア部材５０は、図示しないモータの固定子コアを構成するための部材である。すなわち、固定子コアは、モータ用コア部材５０の厚み方向に複数枚積層されたモータ用コア部材５０を含む。モータの固定子コアの構成は、従来の固定子コアと同様であるため、詳しい説明を省略する。　 The motor core member 50 is a member for constituting a stator core of a motor (not shown). That is, the stator core includes a motor core member 50 that is laminated in the thickness direction of the motor core member 50. Since the configuration of the stator core of the motor is the same as that of the conventional stator core, detailed description thereof is omitted. *
図３に示すように、モータ用コア部材５０は、中央に中央孔５１を有する環状である。モータ用コア部材５０の外縁５６には、所定の角度で周方向に並ぶ複数の突状部５６ａが形成される。突状部５６ａは、モータ用コア部材５０の積層工程で、周方向の位置合わせに利用される。　 As shown in FIG. 3, the motor core member 50 has an annular shape having a central hole 51 at the center. On the outer edge 56 of the motor core member 50, a plurality of protrusions 56a arranged in the circumferential direction at a predetermined angle are formed. The protrusion 56a is used for circumferential alignment in the step of stacking the motor core member 50. *
モータ用コア部材５０は、環状のヨーク部５２と、ヨーク部５２の径方向内側から径方向内方に向かって延びる複数のティース５３とを有する。ティース５３の周方向両側は、スロット５５が形成される。　 The motor core member 50 includes an annular yoke portion 52 and a plurality of teeth 53 extending radially inward from the yoke portion 52 in the radial direction. Slots 55 are formed on both sides in the circumferential direction of the teeth 53. *
また、ヨーク部５２は、複数のかしめ部５４を有する。かしめ部５４は、固定子コアの製造時におけるモータ用コア部材５０の積層工程で、モータ用コア部材５０同士の固定に利用される。　 The yoke portion 52 has a plurality of caulking portions 54. The caulking portion 54 is used for fixing the motor core members 50 in the stacking process of the motor core members 50 when the stator core is manufactured. *
図４は、打ち抜き加工により鋼板１００からモータ用コア部材５０を形成する様子を模式的に示す図である。図５は、第１下側金型５ａの金型合わせ面２０の構成を示す図である。図６は、第２下側金型６ａの金型合わせ面３０の構成を示す図である。　 FIG. 4 is a diagram schematically showing how the motor core member 50 is formed from the steel plate 100 by punching. FIG. 5 is a diagram showing the configuration of the mold mating surface 20 of the first lower mold 5a. FIG. 6 is a diagram showing the configuration of the mold mating surface 30 of the second lower mold 6a. *
上記のように、第１下側金型５ａの金型合わせ面２０及び第２下側金型６ａの金型合わせ面は、複数の加工領域２１，３１を有するプレス加工部８，９を有する。また、第１上側金型５ｂ及び第２上側金型６ｂは、図示しない金型合わせ面を有する。第１下側金型５ａ及び第１上側金型５ｂ、第２下側金型６ａ及び第２上側金型６ｂは、互いの金型合わせ面に形成された刃先２０ａ，３０ａによって、当該刃先２０ａ，３０ａで鋼板１００をプレス加工する。　 As described above, the die mating surface 20 of the first lower die 5a and the die mating surface of the second lower die 6a have the press working portions 8 and 9 each having a plurality of processing regions 21 and 31. . Further, the first upper mold 5b and the second upper mold 6b have a mold mating surface (not shown). The first lower mold 5a, the first upper mold 5b, the second lower mold 6a, and the second upper mold 6b are cut by the cutting edges 20a, 30a formed on the respective mold mating surfaces. , 30a, the steel plate 100 is pressed. *
すなわち、第１上側金型５ｂ及び第２上側金型６ｂにおける金型合わせ面の構成は、第１下側金型５ａの金型合わせ面２０及び第２下側金型６ａの金型合わせ面３０と同様である。以下、本実施形態では、主として、第１下側金型５ａの金型合わせ面２０及び第２下側金型６ａの金型合わせ面３０の構成について説明し、第１上側金型５ｂ及び第２上側金型６ｂについては、詳細な説明を省略する。　 That is, the configuration of the mold mating surfaces of the first upper mold 5b and the second upper mold 6b is the mold mating surface 20 of the first lower mold 5a and the mold mating surface of the second lower mold 6a. 30. Hereinafter, in the present embodiment, the configuration of the mold mating surface 20 of the first lower mold 5a and the mold mating surface 30 of the second lower mold 6a will be mainly described, and the first upper mold 5b and the second mold 5a will be described. Detailed description of the second upper mold 6b is omitted. *
鋼板１００からモータ用コア部材５０を形成する際には、複数の工程が、プレス加工部８，９のそれぞれの加工領域２１，３１に割り振られている。それぞれの加工領域は、鋼板１００に対し、実行される。　 When the motor core member 50 is formed from the steel plate 100, a plurality of processes are allocated to the processing regions 21 and 31 of the press processing portions 8 and 9, respectively. Each processing region is executed for the steel plate 100. *
前記各工程は、一例として、鋼板１００に中央孔５１及びヨーク部５２のスロット５５などを形成する穴あけ加工工程、鋼板１００にモータ用コア部材５０の外形を形成する外形打ち抜き工程などを含む。なお、図４は、金型４の加工領域２１，３１ごとに行われるプレス加工後の鋼板１００の状態を示す図である。鋼板１００は、これらの複数の加工領域によりプレス加工されることにより、図３に示すモータ用コア部材５０が形成される。　 Each of the steps includes, for example, a punching step for forming the central hole 51 and the slot 55 of the yoke portion 52 in the steel plate 100, an outer shape punching step for forming the outer shape of the motor core member 50 in the steel plate 100, and the like. FIG. 4 is a diagram showing a state of the steel plate 100 after press working performed for each of the processing regions 21 and 31 of the mold 4. The steel plate 100 is pressed by the plurality of processing regions, whereby the motor core member 50 shown in FIG. 3 is formed. *
図４に示す各工程の順序は例示であり、図３に示すモータ用コア部材５０を形成可能であれば、各工程の順序は図４に示す順序に特定されない。　 The order of the steps shown in FIG. 4 is an example, and the order of the steps is not specified in the order shown in FIG. 4 as long as the motor core member 50 shown in FIG. 3 can be formed. *
図４から図６に示すように、本実施形態にかかる金型４は、プレス加工部８，９内に、鋼板１００の幅方向に２列の加工領域２１，３１が位置する、いわゆる２個取りの金型である。　 As shown in FIG. 4 to FIG. 6, the mold 4 according to the present embodiment has so-called two dies in which two rows of processing regions 21 and 31 are positioned in the width direction of the steel plate 100 in the press processing portions 8 and 9. It is a mold for removing. *
第１下側金型５ａ及び第２下側金型６ａのプレス加工部８，９内には、複数の加工領域２１，３１が、送り方向に並ぶ。上記のように、各加工領域２１，３１は、金型合わせ面２０，３０上に刃先２０ａ，３０ａを有する。第１下側金型５ａ及び第１上側金型５ｂ並びに、第２下側金型６ａ及び２上側金型６ｂは、刃先２０ａ，３０ａの形状に鋼板１００をプレス加工する。このため、鋼板１００を、金型４の加工領域２１，３１に順次位置合わせしながら、鋼板１００を金型４に対して送り方向に送る必要がある。　 In the press working portions 8 and 9 of the first lower mold 5a and the second lower mold 6a, a plurality of processing regions 21 and 31 are arranged in the feed direction. As described above, each of the processing regions 21 and 31 has the blade edges 20a and 30a on the die mating surfaces 20 and 30. The first lower mold 5a and the first upper mold 5b, and the second lower mold 6a and the second upper mold 6b press the steel plate 100 into the shapes of the cutting edges 20a and 30a. For this reason, it is necessary to feed the steel plate 100 to the die 4 in the feeding direction while sequentially aligning the steel plate 100 with the processing regions 21 and 31 of the die 4. *
加工領域２１，３１に対する鋼板１００の位置合わせには、図４に示すように、鋼板１００に形成された第１パイロット孔１０及び第２パイロット孔１５が用いられる。第１下側金型５ａは、最初の工程として、鋼板１００に第１パイロット孔１０を形成する。そのため、第１下側金型５ａは、鋼板１００に第１パイロット孔１０を形成するための第１パイロット孔形成部２２を有する。また、第２下側金型６ａは、最初の工程として鋼板１００に第２パイロット孔１５を形成する。そのため、第２下側金型６ａは、鋼板１００に第２パイロット孔１５を形成するための第２パイロット孔形成部３２を有する。　 As shown in FIG. 4, the first pilot hole 10 and the second pilot hole 15 formed in the steel plate 100 are used for positioning the steel plate 100 with respect to the processing regions 21 and 31. The first lower mold 5a forms the first pilot holes 10 in the steel plate 100 as the first step. Therefore, the first lower mold 5 a has a first pilot hole forming portion 22 for forming the first pilot hole 10 in the steel plate 100. Further, the second lower mold 6a forms the second pilot hole 15 in the steel plate 100 as the first step. Therefore, the second lower mold 6 a has a second pilot hole forming portion 32 for forming the second pilot hole 15 in the steel plate 100. *
以下、第１下側金型５ａの金型合わせ面２０及び第２下側金型６ａの金型合わせ面３０の構成について、詳細に説明する。　 Hereinafter, the configuration of the mold mating surface 20 of the first lower mold 5a and the mold mating surface 30 of the second lower mold 6a will be described in detail. *
（第１下側金型）　第１下側金型５ａの金型合わせ面２０は、上記の通り、最初に第１パイロット孔１０を形成するためのパイロット孔形成部２２を有する。また、第１下側金型５ａの金型合わせ面２０は、第１パイロット孔形成部２２の送り方向下流側に、プレス加工部８を有する。プレス加工部８は、複数の加工領域２１を有する。　 (First Lower Mold) As described above, the mold mating surface 20 of the first lower mold 5a has the pilot hole forming portion 22 for forming the first pilot hole 10 first. Further, the die mating surface 20 of the first lower die 5 a has a press working portion 8 on the downstream side in the feed direction of the first pilot hole forming portion 22. The press working unit 8 has a plurality of working regions 21. *
第１パイロット孔形成部２２は、図４及び図５に示すように、鋼板１００から製品部であるモータ用コア部材５０が成形された後に鋼板１００に残るスクラップ部１０１に、第１パイロット孔１０を形成する。本実施形態では、第１パイロット孔１０は、鋼板１００の幅方向両端に形成される。　 As shown in FIGS. 4 and 5, the first pilot hole forming portion 22 is formed in the scrap portion 101 remaining in the steel plate 100 after the motor core member 50 as a product portion is formed from the steel plate 100. Form. In the present embodiment, the first pilot holes 10 are formed at both ends of the steel plate 100 in the width direction. *
第１下側金型５ａにより形成される第１パイロット孔１０は、上記のように、鋼板のスクラップ部１０１に形成される。また、第１パイロット孔１０の径寸法は、特に限定されず、スクラップ部１０１の大きさに応じて適宜決定される。　 The first pilot holes 10 formed by the first lower mold 5a are formed in the scrap portion 101 of the steel plate as described above. Moreover, the diameter dimension of the 1st pilot hole 10 is not specifically limited, According to the magnitude | size of the scrap part 101, it determines suitably. *
プレス加工部８は、上記のように複数の加工領域２１を有する。それぞれの加工領域２１は、鋼板１００の幅方向に２列に並ぶ。２列に並んだ加工領域２１の位置は、送り方向にずれている。これにより、鋼板１００に対し、製品であるモータ用コア部材５０の歩留まりを高くすることができる。　 The press working part 8 has a plurality of working regions 21 as described above. Each processing region 21 is arranged in two rows in the width direction of the steel plate 100. The positions of the machining areas 21 arranged in two rows are shifted in the feed direction. Thereby, with respect to the steel plate 100, the yield of the core member 50 for motors which is a product can be made high. *
各加工領域２１は、モータ用コア部材５０の異なる部分をプレス加工する。そのため、各加工領域２１は、各プレス工程に応じた形状の刃先２０ａを有する。例えば、送り方向の最上流側に位置する加工領域２１ａでは、モータ用コア部材５０の外縁５６に、所定の角度ごとに周方向に並ぶ突状部５６ａを形成する。最上流側に位置する加工領域２１ａに続く、次の加工領域では、中央孔５１を形成する。なお、これらの加工領域の配列順序は、特に限定されない。　 Each processing region 21 presses a different portion of the motor core member 50. Therefore, each process area | region 21 has the blade edge | tip 20a of the shape according to each press process. For example, in the processing region 21a located on the most upstream side in the feed direction, the protruding portions 56a arranged in the circumferential direction at predetermined angles are formed on the outer edge 56 of the motor core member 50. In the next machining area following the machining area 21a located on the most upstream side, a central hole 51 is formed. Note that the arrangement order of these processing regions is not particularly limited. *
第１下側金型５ａは、鋼板１００を各加工領域２１に位置合わせするために、鋼板１００の第１パイロット孔１０に挿入される複数の第１パイロットピン２３を有する。複数の第１パイロットピン２３は、第１下側金型５ａの金型合わせ面２０から上方に突出した形状を有する。各第１パイロットピン２３は、各加工領域２１の近傍に位置する。　 The first lower mold 5 a has a plurality of first pilot pins 23 that are inserted into the first pilot holes 10 of the steel plate 100 in order to align the steel plate 100 with each processing region 21. The plurality of first pilot pins 23 have a shape protruding upward from the mold mating surface 20 of the first lower mold 5a. Each first pilot pin 23 is located in the vicinity of each processing region 21. *
これにより、複数の第１パイロットピン２３は、鋼板１００の送り方向に等間隔で位置する加工領域２１と同様、鋼板１００の送り方向に等間隔に位置する。本実施形態では、第１下側金型５ａは、少なくとも３本の第１パイロットピン２３を有する。これにより、鋼板１００に形成された３つ以上の第１パイロット孔１０に、加工領域２１にそれぞれ対応した位置決め用の第１パイロットピン２３を挿入することができるため、第１金型５ａ，５ｂに対して鋼板１００をより精度良く位置決めすることができる。　 Accordingly, the plurality of first pilot pins 23 are positioned at equal intervals in the feed direction of the steel plate 100, as in the machining region 21 positioned at equal intervals in the feed direction of the steel plate 100. In the present embodiment, the first lower mold 5 a has at least three first pilot pins 23. Thereby, since the 1st pilot pin 23 for positioning corresponding to each process area | region 21 can be inserted in the three or more 1st pilot holes 10 formed in the steel plate 100, 1st metal mold | die 5a, 5b In contrast, the steel plate 100 can be positioned more accurately. *
（第２下側金型）　第２下側金型６ａの金型合わせ面３０は、上記の通り、最初に第２パイロット孔１５を形成するための第２パイロット孔形成部３２を有する。また、第２下側金型６ａの金型合わせ面３０は、第２パイロット孔形成部３２の送り方向下流側に、プレス加工部９を有する。プレス加工部９は、複数の加工領域３１を有する。　 (Second Lower Mold) As described above, the mold mating surface 30 of the second lower mold 6a has the second pilot hole forming portion 32 for forming the second pilot hole 15 first. Further, the die mating surface 30 of the second lower die 6 a has the press working portion 9 on the downstream side in the feed direction of the second pilot hole forming portion 32. The press working unit 9 has a plurality of working regions 31. *
第２パイロット孔形成部３２は、図４及び図６に示すように、鋼板１００から製品部であるモータ用コア部材５０が成形された後に鋼板１００に残るスクラップ部１０１に、第２パイロット孔１５を形成する。本実施形態では、第２パイロット孔１５は、鋼板１００の幅方向両端、かつ第１下側金型５ａにより形成された第１パイロット孔１０とは異なる位置に形成される。　 As shown in FIGS. 4 and 6, the second pilot hole forming portion 32 is formed in the scrap portion 101 remaining in the steel plate 100 after the motor core member 50 as a product portion is formed from the steel plate 100. Form. In this embodiment, the 2nd pilot hole 15 is formed in the position different from the 1st pilot hole 10 formed of the width direction both ends of the steel plate 100, and the 1st lower side metal mold | die 5a. *
また、第２下側金型６ａにより形成される第２パイロット孔１５は、第１下側金型５ａにより形成された第１パイロット孔１０の同一径である。　 The second pilot hole 15 formed by the second lower mold 6a has the same diameter as the first pilot hole 10 formed by the first lower mold 5a. *
複数の金型毎に形成される第１パイロット孔１０及び第２パイロット孔１５の径を同一とすることで、鋼板１００上に第１パイロット孔１０及び第２パイロット孔１５の位置を確保しやすくなる。よって、鋼板１００におけるモータ用コア部材５０の歩留まりの向上を図ることができる。　 By making the diameters of the first pilot hole 10 and the second pilot hole 15 formed for each of the plurality of molds the same, it is easy to secure the positions of the first pilot hole 10 and the second pilot hole 15 on the steel plate 100. Become. Therefore, the yield of the motor core member 50 in the steel plate 100 can be improved. *
プレス加工部９は、上記のように複数の加工領域３１を有する。それぞれの加工領域３１は、第１下側金型５ａと同様に、鋼板１００の幅方向に２列に並ぶ。２列に並んだ加工領域３１の位置は、送り方向にずれている。これにより、鋼板１００に対し、製品であるモータ用コア部材５０の歩留まりを高くすることができる。　 The press working part 9 has a plurality of working regions 31 as described above. Each processing region 31 is arranged in two rows in the width direction of the steel plate 100 as in the first lower mold 5a. The positions of the machining areas 31 arranged in two rows are shifted in the feed direction. Thereby, with respect to the steel plate 100, the yield of the core member 50 for motors which is a product can be made high. *
各加工領域３１は、モータ用コア部材５０の異なる部分をプレス加工する。そのため、各加工領域３１は、各プレス工程に応じた形状の刃先３０ａを有する。例えば、図示左列の送り方向最上流側に位置する加工領域３１ａでは、モータ用コア部材５０のヨーク部５２に位置づけられる複数のかしめ部５４を形成する。最上流側に位置する加工領域３１ａに続く、次の加工領域３１ｃでは、複数のティース５３を形成するスロット５５の孔が形成される。　 Each processing region 31 presses a different portion of the motor core member 50. Therefore, each processing region 31 has a cutting edge 30a having a shape corresponding to each pressing step. For example, a plurality of caulking portions 54 that are positioned on the yoke portion 52 of the motor core member 50 are formed in the machining region 31 a that is located on the most upstream side in the feed direction in the left column of the figure. In the next processing region 31c following the processing region 31a located on the most upstream side, holes of slots 55 forming a plurality of teeth 53 are formed. *
一方で、図示右列の最上流側に位置する加工領域３１ｂでは、複数のティース５３を形成するスロット５５の孔が形成される。最上流側に位置する加工領域３１ｂに続く、次の加工領域３１ｄでは、モータ用コア部材５０のヨーク部５２に位置づけられる複数のかしめ部５４を形成する。このように、鋼板１００の幅方向に２列に位置づけられた加工領域３１は、それぞれのプレス加工の工程順序が異なっていてもよい。　 On the other hand, in the processing region 31b located on the most upstream side in the right column in the figure, holes of slots 55 that form a plurality of teeth 53 are formed. In the next processing region 31d following the processing region 31b located on the most upstream side, a plurality of caulking portions 54 positioned on the yoke portion 52 of the motor core member 50 are formed. As described above, the processing regions 31 positioned in two rows in the width direction of the steel plate 100 may have different press processing steps. *
第２下側金型６ａは、鋼板１００を各加工領域３１に位置合わせするために、孔は１００の第２パイロット孔１５に挿入される複数の第２パイロットピン３３を有する。複数の第２パイロットピン３３は、第２下側金型６ａの金型合わせ面３０から上方に突出した形状を有する。第２パイロットピン３３は、各加工領域３１の近傍に位置する。　 The second lower mold 6 a has a plurality of second pilot pins 33 inserted into the second pilot holes 15 of the 100 in order to align the steel plate 100 with each processing region 31. The plurality of second pilot pins 33 have a shape protruding upward from the die mating surface 30 of the second lower die 6a. The second pilot pin 33 is located in the vicinity of each processing region 31. *
これにより複数の第２パイロットピン３３は、鋼板１００の送り方向に等間隔で位置する加工領域３１と同様、鋼板１００の送り方向に等間隔で位置する。本実施形態では、第２下側金型６ａは、１３本のパイロットピン３３を有する。これにより、鋼板１００に形成された３つ以上の第２パイロット孔１５に、加工領域３１にそれぞれ対応した位置決め用の第２パイロットピン３３を挿入することができるため、第２金型６ａ，６ｂに対して鋼板１００をより精度良く位置決めすることができる。　 Thereby, the 2nd pilot pin 33 is located in the feed direction of the steel plate 100 at equal intervals similarly to the process area | region 31 located in the feed direction of the steel plate 100 at equal intervals. In the present embodiment, the second lower mold 6 a has 13 pilot pins 33. Accordingly, the second mold pins 6a and 6b can be inserted into the three or more second pilot holes 15 formed in the steel plate 100 because the positioning second pilot pins 33 respectively corresponding to the processing regions 31 can be inserted. In contrast, the steel plate 100 can be positioned more accurately. *
また、第２下側金型６ａは、第２パイロット孔１５とは異なる位置に、第３パイロット孔１６を形成する、第３パイロット孔形成部３４を有する。第２下側金型６ａは、その下流側において、鋼板１００の打ち抜き部分の割合が大きくなる。このため、鋼板１００に残ったスクラップ部１０１の位置ずれが生じ易くなる。第３パイロット孔１６により、当該打ち抜き部分が多くなった状態での鋼板１００の位置合わせの精度をより高めることができる。　 Further, the second lower mold 6 a has a third pilot hole forming portion 34 that forms the third pilot hole 16 at a position different from the second pilot hole 15. In the second lower mold 6a, the ratio of the punched portion of the steel plate 100 is increased on the downstream side. For this reason, the scrap portion 101 remaining on the steel plate 100 is likely to be displaced. The third pilot hole 16 can further increase the accuracy of alignment of the steel plate 100 in a state where the number of punched portions is increased. *
第３パイロット孔形成部３４により形成された第３パイロット孔１６には、より下流の加工領域３１に位置づけられた第３パイロットピン３５が挿入される。第２パイロットピン３５は、第２下側金型６ａの金型合わせ面３０から上方に突出した形状を有し、送り方向に等間隔で位置づけられている。　 A third pilot pin 35 positioned in the downstream processing region 31 is inserted into the third pilot hole 16 formed by the third pilot hole forming portion 34. The second pilot pins 35 have a shape protruding upward from the die mating surface 30 of the second lower die 6a, and are positioned at equal intervals in the feed direction. *
以上の構成により、複数の金型毎にそれぞれ第１パイロット孔１０及び第２パイロット孔１５を異なる位置に形成するため、各金型において加工位置の位置決め精度を向上でき、金型を分割した際の精度誤差をなくすことができる。これにより、複数の金型５，６によって鋼板にプレス加工を行うことができるため、小型の工作機で多工程のプレス加工品を製造することが可能となる。　 With the above configuration, since the first pilot hole 10 and the second pilot hole 15 are formed at different positions for each of a plurality of molds, the positioning accuracy of the processing position can be improved in each mold, and when the molds are divided Accuracy error can be eliminated. Thereby, since it can press on a steel plate with the some metal mold | dies 5 and 6, it becomes possible to manufacture a multi-process press-processed product with a small machine tool. *
（モータ用コア部材のプレス加工工程）　以下、本実施形態にかかるプレス加工製品製造装置１により、モータ用コア部材を製造するプレス加工工程について説明する。なお、本実施形態では、下側金型４ａ及び上側金型４ｂに含まれる複数の加工領域２１，３１により、順送りされた鋼板１００が同時且つ連続的にプレス加工される。以下では、鋼板１００の特定の加工部分が、金型４内を順次移動して、モータ用コア部材として製造されるまでの工程について説明する。　 (Pressing Step of Motor Core Member) Hereinafter, the pressing step of manufacturing the motor core member by the press product manufacturing apparatus 1 according to the present embodiment will be described. In the present embodiment, the sequentially fed steel plates 100 are pressed simultaneously and continuously by the plurality of processing regions 21 and 31 included in the lower mold 4a and the upper mold 4b. Below, the process until the specific process part of the steel plate 100 moves sequentially in the metal mold | die 4, and is manufactured as a core member for motors is demonstrated. *
最初に、可動盤３を上昇させ、下側金型４ａ及び上側金型４ｂを開く（ステップＳ１）。これにより、下側金型４ａ及び上側金型４ｂの間に、帯状の鋼板１００を送り込むことが可能となる。次いで、下側金型４ａの上方に帯状の鋼板１００を通過させ、鋼板１００の特定部分を、第１下側金型５ａの上面の所定位置に位置付ける（ステップＳ２）。第１下側金型５ａに対する鋼板１００の位置合わせについては、従来のプレス加工製品製造装置における鋼板の位置合わせと同様であるため、詳しい説明を省略する。　 First, the movable platen 3 is raised and the lower mold 4a and the upper mold 4b are opened (step S1). Thereby, it becomes possible to feed the strip-shaped steel plate 100 between the lower mold 4a and the upper mold 4b. Next, the strip-shaped steel plate 100 is passed over the lower mold 4a, and a specific portion of the steel plate 100 is positioned at a predetermined position on the upper surface of the first lower mold 5a (step S2). Since the alignment of the steel plate 100 with respect to the first lower mold 5a is the same as the alignment of the steel plate in the conventional press-processed product manufacturing apparatus, detailed description thereof is omitted. *
次に、鋼板１００の特定部分に第１パイロット孔１０を形成するために可動盤３を下降させる。これにより、第１下側金型５ａの第１パイロット孔形成部２２によって、鋼板１００の幅方向端部に、第１パイロット孔１０が打ち抜きによって形成される（ステップＳ３）。この工程が、第１パイロット孔形成工程である。　 Next, the movable platen 3 is lowered to form the first pilot hole 10 in a specific portion of the steel plate 100. Thereby, the 1st pilot hole 10 of the 1st lower side metal mold | die 5a is formed in the width direction edge part of the steel plate 100 by stamping (step S3). This step is a first pilot hole forming step. *
次いで、鋼板１００を送り、鋼板１００を、第１パイロット孔形成部２２の送り方向下流側に位置する加工領域２１に位置合わせする（ステップＳ４）。このときの鋼板１００の送り量は、金型４の加工領域２１間のピッチにより決定される。次いで、第１パイロット孔形成工程で鋼板１００に形成された第１パイロット孔１０に、加工領域２１の第１パイロットピン２３を挿入する（ステップＳ５）。これにより、第１下側金型５ａと鋼板１００とが位置合わせされる。　 Next, the steel plate 100 is fed, and the steel plate 100 is aligned with the processing region 21 located on the downstream side in the feed direction of the first pilot hole forming portion 22 (step S4). The feed amount of the steel plate 100 at this time is determined by the pitch between the processing regions 21 of the mold 4. Next, the first pilot pin 23 in the processing region 21 is inserted into the first pilot hole 10 formed in the steel plate 100 in the first pilot hole forming step (step S5). Thereby, the first lower mold 5a and the steel plate 100 are aligned. *
次いで、可動盤３を下降させ、第１下側金型５ａ及び第１上側金型５ｂにより、加工領域に応じたプレス加工を行う（ステップＳ６）。この工程が、第１プレス加工工程である。以下、ステップＳ４～Ｓ６は、第１下側金型５ａ及び第１上側金型５ｂが有する加工領域２１の数に応じて繰り返し行われる。　 Next, the movable platen 3 is lowered, and pressing is performed according to the processing area by the first lower mold 5a and the first upper mold 5b (step S6). This step is the first press working step. Hereinafter, steps S4 to S6 are repeated according to the number of processing regions 21 included in the first lower mold 5a and the first upper mold 5b. *
上記ステップＳ４～Ｓ６を繰り返し、第１下側金型５ａ及び第１上側金型５ｂが有する加工領域２１によりプレス加工が行われると、鋼板１００の特定部分は、第１下側金型５ａ及び第１上側金型５ｂの外側に排出され、第２下側金型６ａ及び第２上側金型６ｂに送られる。　 When the steps S4 to S6 are repeated and the press working is performed by the processing region 21 included in the first lower mold 5a and the first upper mold 5b, the specific portion of the steel plate 100 has the first lower mold 5a and the first lower mold 5a. It is discharged outside the first upper mold 5b and sent to the second lower mold 6a and the second upper mold 6b. *
上記のように、固定盤２は位置決めピン７により、２つの金型５ａ，６ａの取り付け位置を決めているため、２つの金型５ａ，６ａ間の相対位置は一定である。　 As described above, since the fixed platen 2 determines the mounting positions of the two molds 5a and 6a by the positioning pins 7, the relative position between the two molds 5a and 6a is constant. *
次いで、帯状の鋼板１００を下側金型４ａの上方を通過させ、鋼板１００の特定部分を、第
２下側金型６ａの上面の所定位置に位置付ける（ステップＳ７）。第２下側金型６ａに対する鋼板１００の位置合わせについては、従来のプレス加工製品製造装置における鋼板の位置合わせと同様であるため、詳しい説明を省略する。　 Next, the strip-shaped steel plate 100 is passed over the lower mold 4a, and a specific portion of the steel plate 100 is positioned at a predetermined position on the upper surface of the second lower mold 6a (step S7). Since the alignment of the steel plate 100 with respect to the second lower mold 6a is the same as the alignment of the steel plate in the conventional press-processed product manufacturing apparatus, detailed description thereof is omitted.
次に、鋼板１００の特定部分に第２パイロット孔１５を形成するために可動盤３を下降させる。これにより、第２下側金型５ｂの第２パイロット孔形成部３２によって、鋼板１００の幅方向端部に、第２パイロット孔１５が打ち抜きによって形成される（ステップＳ８）。この工程が、第２パイロット孔形成工程である。　 Next, the movable platen 3 is lowered to form the second pilot hole 15 in a specific portion of the steel plate 100. Thereby, the second pilot hole 15 is formed by punching in the width direction end portion of the steel plate 100 by the second pilot hole forming portion 32 of the second lower mold 5b (step S8). This step is a second pilot hole forming step. *
次いで、鋼板１００を送り、鋼板１００の特定部分を、第２パイロット孔形成部３２の送り方向下流側に位置する加工領域３１に位置合わせする（ステップＳ９）。このときの鋼板１００の送り量は、金型４の加工領域２１間のピッチにより決定される。次いで、第２パイロット孔形成工程において、鋼板１００の特定部分に形成された第２パイロット孔１５に、加工領域３１の第２パイロットピン３３を挿入する（ステップＳ１０）。これにより、第２下側金型６ａと鋼板１００とが位置合わせされる。　 Next, the steel plate 100 is fed, and a specific portion of the steel plate 100 is aligned with the processing region 31 located on the downstream side in the feed direction of the second pilot hole forming portion 32 (step S9). The feed amount of the steel plate 100 at this time is determined by the pitch between the processing regions 21 of the mold 4. Next, in the second pilot hole forming step, the second pilot pin 33 in the processing region 31 is inserted into the second pilot hole 15 formed in the specific portion of the steel plate 100 (step S10). Thereby, the 2nd lower side metal mold | die 6a and the steel plate 100 are aligned. *
次いで、可動盤３を下降させ、第２下側金型６ａ及び第２上側金型６ｂにより、加工領域に応じたプレス加工を行う（ステップＳ１１）。この工程が、第２プレス加工工程である。以下、ステップＳ９～ステップＳ１１は、第２下側金型６ａ及び第２上側金型６ｂが有する送り方向に並ぶ加工領域３１の数に応じて繰り返し行われる。　 Next, the movable platen 3 is lowered, and the press working corresponding to the working region is performed by the second lower die 6a and the second upper die 6b (step S11). This step is the second press working step. Hereinafter, steps S9 to S11 are repeatedly performed according to the number of processing regions 31 arranged in the feed direction of the second lower mold 6a and the second upper mold 6b. *
第２下側金型６ａ及び第２上側金型６ｂが有する送り方向に並ぶ加工領域３１によりプレス加工が行われると、製品としてのモータ用コア部材５０が製造される。　 When the press working is performed by the processing region 31 arranged in the feed direction of the second lower mold 6a and the second upper mold 6b, the motor core member 50 as a product is manufactured. *
以上の構成により、プレス加工製品製造装置１は、複数の金型５ａ，５ｂ，６ａ，６ｂ毎にそれぞれパイロット孔１０，１５を異なる位置に形成するため、各金型５ａ，５ｂ，６ａ，６ｂにおいて加工位置の位置決め精度を向上でき、金型を分割した際の精度誤差をなくすことができる。これにより、複数の金型５ａ，５ｂ，６ａ，６ｂによって鋼板１００にプレス加工を行うことができるため、小型の工作機で多工程のプレス加工品を製造することが可能となる。　 With the above configuration, the press-processed product manufacturing apparatus 1 forms the pilot holes 10 and 15 at different positions for each of the plurality of molds 5a, 5b, 6a, and 6b, and thus each mold 5a, 5b, 6a, and 6b. Therefore, the positioning accuracy of the machining position can be improved, and the accuracy error when the mold is divided can be eliminated. Thereby, since the steel plate 100 can be pressed by the plurality of molds 5a, 5b, 6a, 6b, a multi-process press-processed product can be manufactured with a small machine tool. *
（その他の実施形態）　以上、本発明の実施の形態を説明したが、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。　 Other Embodiments Although the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be appropriately modified and implemented without departing from the spirit of the invention. *
前記実施形態では、第１パイロット孔１０及び第２パイロット孔１５は、いずれも、鋼板１００の幅方向端部に形成される。しかしながら、第１パイロット孔１０は、第１パイロット孔が形成された後の加工工程においてスクラップ部になる部分であれば、どこに形成されてもよい。　 In the embodiment, both the first pilot hole 10 and the second pilot hole 15 are formed at the end in the width direction of the steel plate 100. However, the first pilot hole 10 may be formed anywhere as long as it is a portion that becomes a scrap portion in the processing step after the first pilot hole is formed. *
例えば、図８に示すように、第１下側金型６５ａは、鋼板１００を平面で見て、鋼板１００において、当該第１下側金型６５ａによるプレス加工後に、プレス加工製品の外形よりも内側に位置し且つスクラップ部となる部分６１に、第１パイロット孔６２を形成してもよい。すなわち、第１下側金型６５ａは、鋼板１００において、スクラップ部となる部分６１に第１パイロット孔を形成可能な第１パイロット孔形成部６２を有する。　 For example, as shown in FIG. 8, the first lower mold 65a is formed in the steel plate 100 after the press working by the first lower mold 65a in the steel plate 100 in a plan view. You may form the 1st pilot hole 62 in the part 61 located inside and used as a scrap part. In other words, the first lower mold 65a has a first pilot hole forming portion 62 capable of forming a first pilot hole in a portion 61 to be a scrap portion in the steel plate 100. *
例えば、第１下側金型６５ａによるプレス加工後に、プレス加工製品の外形よりも内側に位置し且つスクラップ部となる部分６１としては、中央孔５１の打ち抜きにより形成される部分が例示できる。　 For example, the portion 61 formed by punching the central hole 51 can be exemplified as the portion 61 that is located inside the outer shape of the press-processed product after being pressed by the first lower mold 65a and becomes a scrap portion. *
これにより、パイロット孔を、鋼板１００を平面で見て、鋼板１００においてプレス加工製品の外形よりも内側に位置するスクラップ部６１に形成することにより、プレス加工製品５０の外形よりも外側にパイロット孔１０を形成する場合に比べて、歩留まりを向上できる。　 Accordingly, the pilot hole is formed in the scrap portion 61 positioned on the inner side of the outer shape of the press-worked product in the steel plate 100 when the steel plate 100 is viewed in a plan view. The yield can be improved as compared with the case of forming 10. *
前記実施形態では、プレス加工製品として、モータ用コア部材５０について説明している。しかしながら、プレス加工製品は、モータ用コア部材に限定されず、プレス加工によって製造される部材を含む。 In the embodiment, the motor core member 50 is described as a press-processed product. However, the press-processed product is not limited to the motor core member, and includes a member manufactured by press processing.
本発明は、複数の金型によって帯状の鋼板をそれぞれプレス加工することにより、プレス加工製品を製造するプレス加工製品製造装置に適用可能である。 INDUSTRIAL APPLICABILITY The present invention can be applied to a press-processed product manufacturing apparatus that manufactures press-processed products by press-working strip-shaped steel plates with a plurality of dies.
１　プレス加工製品製造装置２　固定盤３　可動盤４ａ　下側金型４ｂ　上側金型５ａ　第１下側金型５ｂ　第１上側金型５ｃ、６ｃ　幅方向端面５ｄ，６ｄ　送り方向端面６ａ　第２下側金型６ｂ　第２上側金型７，７ａ，７ｂ　位置決めピン８，９　プレス加工部１０　第１パイロット孔１５　第２パイロット孔１６　第３パイロット孔２０、３０　金型合わせ面２０ａ，３０ａ　刃先２１，３１　加工領域２２　第１パイロット孔形成部２３　第１パイロットピン３２　第２パイロット孔形成部３３　第２パイロットピン３４　第３パイロット孔形成部３５　第３パイロットピン５０　モータ用コア部材５１　中央孔５２　ヨーク部５３　ティース５４　かしめ部５５　スロット５６　外縁１００　鋼板１０１　スクラップ部 DESCRIPTION OF SYMBOLS 1 Press work product manufacturing apparatus 2 Fixed board 3 Movable board 4a Lower metal mold 4b Upper metal mold 5a First lower metal mold 5b First upper metal mold 5c, 6c Width direction end surface 5d, 6d Feed direction end surface 6a Second lower Side die 6b, second upper die 7, 7a, 7b, positioning pins 8, 9, press working part 10, first pilot hole 15, second pilot hole 16, third pilot hole 20, 30 die matching surfaces 20a, 30a cutting edge 21, 31 Processing region 22 First pilot hole forming part 23 First pilot pin 32 Second pilot hole forming part 33 Second pilot pin 34 Third pilot hole forming part 35 Third pilot pin 50 Motor core member 51 Central hole 52 Yoke part 53 Teeth 54 Caulking part 55 Slot 56 Outer edge 100 Steel plate 101 Scrap part

Claims (9)

  1. 複数の金型によって帯状の鋼板をそれぞれプレス加工することにより、プレス加工製品を製造するプレス加工製品製造装置であって、　前記複数の金型は、それぞれ、　前記複数の金型毎に前記鋼板の異なる位置にパイロット孔を形成するパイロット孔形成部と、　前記複数の金型毎に形成されたパイロット孔に挿入されるパイロットピンと、　前記パイロット孔に前記パイロットピンが挿入されることで位置決めされた前記鋼板を所定の形状にプレス加工するプレス加工部と、を有する、プレス加工製品製造装置。 A press-processed product manufacturing apparatus for manufacturing a press-processed product by pressing a strip-shaped steel plate with a plurality of dies, wherein each of the plurality of dies is provided for each of the plurality of dies. Pilot hole forming portions for forming pilot holes at different positions, pilot pins inserted into pilot holes formed for each of the plurality of molds, and positioning by inserting the pilot pins into the pilot holes A press-processed product manufacturing apparatus, comprising: a press-processing unit that presses a steel plate into a predetermined shape.
  2. 請求項１に記載のプレス加工製品製造装置において、　前記パイロット孔形成部は、前記鋼板を平面で見て、前記鋼板において、前記複数の金型によるプレス加工後に前記プレス加工製品の外形よりも内側に位置するスクラップ部となる部分に、前記パイロット孔を形成する、プレス加工製品製造装置。 2. The press-processed product manufacturing apparatus according to claim 1, wherein the pilot hole forming unit is configured to view the steel plate in a plan view, and the steel plate has an inner side of the press-processed product after press processing with the plurality of molds. An apparatus for manufacturing a press-processed product, wherein the pilot hole is formed in a portion to be a scrap portion located at a position.
  3. 請求項１又は２に記載のプレス加工製品製造装置において、　前記複数の金型における各パイロット孔形成部は、前記鋼板の異なる位置に、同一径のパイロット孔を形成する、プレス加工製品製造装置。 3. The press-processed product manufacturing apparatus according to claim 1, wherein each pilot hole forming portion in the plurality of molds forms a pilot hole of the same diameter at a different position of the steel plate.
  4. 請求項１から３のいずれか一つに記載のプレス加工製品製造装置において、　前記プレス加工部は、前記鋼板をプレス加工するプレス加工領域を３つ以上有し、　前記パイロットピンは、前記３つ以上の加工領域にそれぞれ対応した位置決め用パイロットピンを含み、　前記プレス加工領域は、前記パイロット孔に前記位置決め用パイロットピンが挿入されることで位置決めされた前記鋼板をプレス加工する、プレス加工製品製造装置。 The press-worked product manufacturing apparatus according to any one of claims 1 to 3, wherein the press working part has three or more press working regions for press working the steel plate, and the pilot pins are the three Included pilot pins for positioning corresponding to the above-described processing regions, respectively, wherein the press processing region manufactures a press-processed product that presses the steel plate positioned by inserting the positioning pilot pins into the pilot holes. apparatus.
  5. 複数の金型によって帯状の鋼板をそれぞれプレス加工することにより、プレス加工製品を製造するプレス加工製品製造方法であって、　前記複数の金型のうち第１金型により第１パイロット孔を形成する第１パイロット孔形成工程と、　前記第１金型により、第１パイロット孔を基準にして前記鋼板を所定の形状にプレス加工を行う第１プレス加工工程と、　前記複数の金型のうち前記第１金型の後に前記鋼板をプレス成形する第２金型により、前記第１パイロット孔と異なる位置に第２パイロット孔を形成する第２パイロット孔形成加工工程と、　前記第２金型により、前記第２パイロット孔を基準にしてプレス加工を行う第２プレス加工工程と、を有する、プレス加工製品製造方法。 A press-processed product manufacturing method for manufacturing a press-processed product by pressing a strip-shaped steel plate with a plurality of molds, wherein a first pilot hole is formed by a first mold among the plurality of molds. A first pilot hole forming step, a first press working step of pressing the steel sheet into a predetermined shape based on the first pilot hole by the first die, and the first of the plurality of dies. A second pilot hole forming step for forming a second pilot hole at a position different from the first pilot hole by a second mold for press-molding the steel sheet after the one mold; And a second press working step for performing press working on the basis of the second pilot hole.
  6. 請求項５に記載のプレス加工製品製造方法において、　前記第１パイロット孔形成工程は、前記鋼板を平面で見て、前記鋼板において、第２プレス加工工程において前記プレス加工製品の外形よりも内側に位置するスクラップ部となる部分に第１パイロット孔を形成する、プレス加工製品製造方法。 6. The method for manufacturing a press-processed product according to claim 5, wherein the first pilot hole forming step is performed so that the steel plate is viewed in a plan view, and the steel plate has a second press-working step inside the outer shape of the press-processed product. A press-processed product manufacturing method, wherein a first pilot hole is formed in a portion to be a scrap portion.
  7. 請求項５又は６に記載のプレス加工製品製造方法において、　第１パイロット孔形成工程及び第２パイロット孔形成工程は、前記鋼板の異なる位置に、同一径のパイロット孔を形成する、プレス加工製品製造方法。 The press-processed product manufacturing method according to claim 5 or 6, wherein the first pilot hole forming step and the second pilot hole forming step form pilot holes having the same diameter at different positions of the steel plate. Method.
  8. 請求項５から７のいずれか一つに記載のプレス加工製品製造方法において、　前記第１金型で行われる第１プレス加工工程は、前記鋼板をプレス加工する３つ以上のプレス加工領域で行われ、それぞれの加工領域ごとに前記第１パイロット孔を基準にしてプレス加工を行なう、プレス加工製品製造方法。 The press-worked product manufacturing method according to any one of claims 5 to 7, wherein the first press working step performed by the first mold is performed in three or more press working regions in which the steel plate is pressed. A method for manufacturing a press-processed product, wherein press processing is performed for each processing region with reference to the first pilot hole.
  9. 請求項５から８のいずれか１つに記載のプレス加工製品製造方法において、　前記第２金型で行われる第２プレス加工工程は、前記鋼板をプレス加工する３つ以上のプレス加工領域で行われ、それぞれの加工領域ごとに前記第２パイロット孔を基準にしてプレス加工を行なうプレス加工製品製造方法。 The press-worked product manufacturing method according to any one of claims 5 to 8, wherein the second press working step performed by the second mold is performed in three or more press working regions for press-working the steel plate. A method for manufacturing a press-processed product, wherein press processing is performed for each processing region with reference to the second pilot hole.
PCT/JP2019/013099 2018-04-20 2019-03-27 Device for manufacturing pressed product WO2019202930A1 (en)

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