CN115532943B - Forming method of product with large length-width ratio and forming die with shortened length - Google Patents

Forming method of product with large length-width ratio and forming die with shortened length Download PDF

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Publication number
CN115532943B
CN115532943B CN202211480214.4A CN202211480214A CN115532943B CN 115532943 B CN115532943 B CN 115532943B CN 202211480214 A CN202211480214 A CN 202211480214A CN 115532943 B CN115532943 B CN 115532943B
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China
Prior art keywords
material belt
hole
punching
product
round hole
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CN202211480214.4A
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Chinese (zh)
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CN115532943A (en
Inventor
顾大明
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Suzhou Mingfeng Precision Machinery Co ltd
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Suzhou Mingfeng Precision Machinery Co ltd
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Priority to CN202211480214.4A priority Critical patent/CN115532943B/en
Publication of CN115532943A publication Critical patent/CN115532943A/en
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    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • 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
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables
    • 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
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/287—Devices for handling sheet or strip material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention belongs to the technical field of metal stamping, and relates to a forming method of a product with a large length-width ratio and a forming die with a shortened length, wherein the method comprises the steps of pre-punching, cutting, rotating and stepping processing; the die comprises a feeding punching device, a rotating device and a stepping processing device. The invention can utilize narrow material strips to manufacture fine products, and saves materials; meanwhile, the product material is rotated by 90 degrees during processing, so that the length of the die is reduced.

Description

Forming method of product with large length-width ratio and forming die with shortened length
Technical Field
The invention relates to the technical field of metal stamping, in particular to a forming method of a product with a large length-width ratio and a forming die with a shortened length.
Background
Metal stamping is a common process for processing many metal products, and with the diversification of customer demands, the design of the mold also meets various product demands.
The product 1 in fig. 1 is a connecting rod with a bent structure, wherein two ends of the connecting rod are provided with non-circular holes 13, and one end is provided with an arched hole 12. The length of this product 1 is several times the width, and in the past, the general design mode was to adopt the material area of slightly wider than the length of product 1 to process when processing, and the material area connecting material of the general needs to be added outside the design scope this moment, and then the material area connecting material can lead to a lot of material waste. If a strip of material as wide as the width of the product 1 is used for the processing, the waste material is only concentrated in the end-to-end connection of the design area, saving material, but in the case of a large number of subsequent continuous processing stations the required mould structure is too long.
There is therefore a need to develop a new mold and processing method to solve the above problems.
Disclosure of Invention
The invention mainly aims to provide a forming method of a product with a large length-width ratio and a forming die with a shortened length, which can manufacture fine products by utilizing narrow material belts and save materials; meanwhile, the product material is rotated by 90 degrees during processing, so that the length of the die is reduced.
The invention realizes the aim through the following technical scheme: a method of forming a product of a reduced length to width ratio using a forming die having a rotating means comprising a platform for supporting the preform, a vertical post for engaging the circular aperture, a pushing mechanism for rotating the preform 90 ° on the platform about the vertical post, and a stop defining a rotational end point for the preform, the method comprising the steps of:
s1, pre-punching: the material belt with the width equal to the product width is led out, the head end and the two sides of the material belt are used as positioning, and a round hole is cut on the material belt;
s2, cutting: cutting off the rear part of the material belt by taking the round hole as a reference to form an independent preformed piece, wherein the preformed piece falls on the platform after being cut off, and the round hole is sleeved on the vertical convex column;
s3, rotating: the pushing mechanism rotates the preformed piece by 90 degrees on the premise that the round hole is sleeved on the vertical convex column;
s4, step processing: taking the round hole as a positioning reference, and enabling the rotated preformed piece to be conveyed into a stepping processing device in a stepping mode along the conveying direction of the material belt for continuous processing until a final product is obtained;
the pre-punching step is to cut an arc-shaped hole on the material belt to be used as a second positioning reference of the preformed piece in the stepping processing step, and the arc-shaped hole and the round hole are respectively arranged at two ends of the preformed piece; the step processing step further comprises fine cutting the round hole, and the arc-shaped hole is used as a positioning reference to expand the round hole into a non-circular hole.
The utility model provides a forming die that length shortens, includes feeding die-cut device, rotary device and step-by-step processingequipment, feeding die-cut device is including being used for guiding the material area and making the baffle box that the material area goes up and down, be used for punching round hole's round punch and be used for cutting the material area into the blanking punch of preforming in the material area, rotary device includes being used for supporting the platform of preforming, is used for cooperating the vertical projection of round hole, be used for making the preforming on the platform around vertical projection rotates 90 and inject the dog that the preforming rotates the terminal, step-by-step processingequipment includes letting the preforming step-by-step conveying to the conveying mechanism of different stations and the processing mechanism who is located on each station.
Specifically, the feeding punching device further comprises an arch punch for punching arch holes in the material belt.
The technical scheme of the invention has the beneficial effects that:
the invention can utilize narrow material strips to manufacture fine products, and saves materials; meanwhile, the product material is rotated by 90 degrees during processing, so that the length of the die is reduced.
Drawings
FIG. 1 is a perspective view of a product;
FIG. 2 is a perspective view showing a lower die of a fine product forming die in an operating state;
FIG. 3 is an enlarged view of a portion of the position A of FIG. 2;
fig. 4 is a partial enlarged view of the position B in fig. 2.
The figures represent the numbers:
1-a product, 10-a material belt, 100-a preformed body, 11-a round hole, 12-an arc hole and 13-a non-round hole;
2-feeding punching device, 21-guide chute, 22-round punch, 23-arch punch and 24-blanking punch;
3-rotation device, 31-vertical convex column, 32-platform, 33-pushing mechanism and 34-stop block;
4-step processing device, 41-conveying mechanism, 42-processing mechanism.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Examples
As shown in fig. 1 to 4, a shortened length forming die of the present invention comprises a feeding punching device 2, a rotating device 3 and a step processing device 4, the feeding punching device 2 comprises a guide chute 21 for guiding a material belt 10 and lifting the material belt 10, a round punch 22 for punching round holes 11 on the material belt 10 and a blanking punch 24 for cutting the material belt 10 into a preform 100, the rotating device 3 comprises a platform 32 for supporting the preform 100, a vertical boss 31 for matching the round holes 11, a pushing mechanism 33 for rotating the preform 100 by 90 ° around the vertical boss 31 on the platform 32 and a stopper 34 for defining a rotation end point of the preform 100, and the step processing device 4 comprises a conveying mechanism 41 for stepping the preform 100 to different stations and a processing mechanism 42 located at each station. The feed die cutting apparatus 2 also includes an arcuate punch 23 for punching the arcuate apertures 12 in the web 10.
A method for forming a product with a large length-width ratio, which is realized by a forming die with a shortened length, wherein the forming die comprises a platform 32, a vertical convex column 31 and a pushing mechanism 33, and the method comprises the following steps:
s1, pre-punching: the material belt 10 with the width equal to the width of the product 1 is led out, the head end and two sides of the material belt 10 are used as positioning, and a round hole 11 is cut on the material belt;
s2, cutting: cutting the rear part of the material belt 10 based on the round hole 11 to form an independent preformed piece 100, cutting the preformed piece 100, falling on the platform 32, and sleeving the round hole 11 on the vertical convex column 31;
s3, rotating: the pushing mechanism 33 rotates the preform 100 by 90 ° with the circular hole 11 held in place over the vertical post 31;
s4, step processing: the rotated preform is fed stepwise in the feeding direction of the tape 10 into the stepping processing device 4 with the circular hole 11 as a positioning reference, and is continuously processed until the final product 1 is obtained.
The use principle of the die is as follows: the strip 10 is a narrow strip of material having the same width as the product 1, rather than a wide strip of material having the same width as the length of the product 1. The latter wastes more material in the layout. Because the product 1 is designed to contain a hole site, i.e., the circular hole 11, in its own right, the circular punch 22 can be cut out first to serve as a rotational reference for the preform 100. When the material strip 10 is cut into the preform 100, the length direction of the preform 100 is along the conveying direction, but in order to reduce the length of the subsequent processing die, the preform 100 falls on the platform 32 after being cut by the blanking punch 24, the round hole 11 is sleeved at the vertical boss 31, so that the pushing mechanism 33 can rotate the preform by 90 degrees around the vertical boss 31 until one side of the preform 100 abuts against the stop 34. The preform 100 is then fed into the processing mechanism 42 in steps under the drive of the conveying mechanism 41, and the processing mechanism 42 can perform operations such as re-punching, reaming, hole flanging, bending, and the like, so as to finally obtain the final structure of the product 1.
As shown in fig. 3, the pre-punching step cuts an arcuate hole 12 in the material tape 1 as a second positioning reference for the preform 100 in the step processing step, the arcuate hole 12 being separated from the circular hole 11 at both ends of the preform 100. The arcuate aperture 12 is angularly non-rotatable when used as a reference for positioning. This may help to accurately position the preform 100 during subsequent processing.
As shown in fig. 3, the step of machining further includes fine cutting the circular hole 11, and enlarging the circular hole 11 into a non-circular hole 13 with the arcuate hole 12 as a positioning reference. The position of the circular hole 11 in the structure of the product 1 should be a non-circular hole 13, so that the circular hole 11 is further processed after the rotational positioning function is completed, and the final hole structure is obtained.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims (3)

1. A molding method of a product with a large length-width ratio is characterized by comprising the following steps: realized with a forming die of reduced length, the forming die comprising a rotation device (3), the rotation device (3) comprising a platform (32) for supporting a preform (100), a vertical boss (31) for engaging a circular hole (11), a pushing mechanism (33) for rotating the preform (100) on the platform (32) by 90 ° around the vertical boss (31), and a stop (34) defining a rotational end point of the preform (100), the steps comprising:
s1, pre-punching: the method comprises the steps of (1) leading out a material belt (10) with the width equal to that of a product (1), taking the head end and two sides of the material belt (10) as positioning positions, and cutting a round hole (11) on the material belt;
s2, cutting: cutting off the rear part of the material belt (10) based on the round hole (11) to form an independent preformed piece (100), wherein the preformed piece (100) falls on the platform (32) after being cut off, and the round hole (11) is sleeved on the vertical convex column (31);
s3, rotating: the pushing mechanism (33) rotates the preform (100) by 90 DEG while keeping the round hole (11) sleeved on the vertical boss (31);
s4, step processing: taking the round hole (11) as a positioning reference, and enabling the rotated preformed piece to be conveyed into a stepping processing device (4) in a stepping mode along the conveying direction of the material belt (10) for continuous processing until a final product (1) is obtained;
the pre-punching step cuts an arch hole (12) on the material belt (10) to be used as a second positioning reference of the preformed piece (100) in the stepping processing step, and the arch hole (12) and the round hole (11) are respectively arranged at two ends of the preformed piece (100); the step processing step further comprises fine cutting the round hole (11), and the round hole (11) is enlarged to be a non-circular hole (13) by taking the arc-shaped hole (12) as a positioning reference.
2. A molding die for realizing the length reduction of the molding method according to claim 1, characterized in that: the feeding and punching device (2), the rotating device (3) and the stepping processing device (4) are included, the feeding and punching device (2) comprises a guide groove (21) used for guiding a material belt (10) and enabling the material belt (10) to ascend and descend, a round punch (22) used for punching round holes (11) on the material belt (10) and a blanking punch (24) used for cutting the material belt (10) into pre-formed pieces (100), the rotating device (3) comprises a platform (32) used for supporting the pre-formed pieces (100), a vertical boss (31) used for matching the round holes (11), a pushing mechanism (33) used for enabling the pre-formed pieces (100) to rotate by 90 degrees around the vertical boss (31) on the platform (32) and a stop block (34) used for limiting the rotation end point of the pre-formed pieces (100), and the stepping processing device (4) comprises a conveying mechanism (41) used for enabling the pre-formed pieces (100) to be conveyed to different stations and processing mechanisms (42) located on the various stations.
3. The reduced length molding die of claim 2, wherein: the feed die cutting device (2) further comprises an arcuate punch (23) for punching an arcuate hole (12) in the web (10).
CN202211480214.4A 2022-11-24 2022-11-24 Forming method of product with large length-width ratio and forming die with shortened length Active CN115532943B (en)

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CN202211480214.4A CN115532943B (en) 2022-11-24 2022-11-24 Forming method of product with large length-width ratio and forming die with shortened length

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Application Number Priority Date Filing Date Title
CN202211480214.4A CN115532943B (en) 2022-11-24 2022-11-24 Forming method of product with large length-width ratio and forming die with shortened length

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CN115532943B true CN115532943B (en) 2023-05-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2632358B2 (en) * 1988-04-25 1997-07-23 タキロン株式会社 Continuous press forming method for long objects
DE102004023887A1 (en) * 2004-05-12 2005-12-08 Muhr Und Bender Kg Coil processing of flexible rolled strip
CN107931419A (en) * 2017-11-20 2018-04-20 苏州安洁科技股份有限公司 One kind of multiple gauge material continuous stamping process
EP3572161B1 (en) * 2018-05-24 2021-02-24 Muhr und Bender KG Method and device for producing a product made of a flexible rolled strip material
CN209110096U (en) * 2018-10-18 2019-07-16 苏州崴骏精密模具有限公司 A kind of progressive die feeding positioning punching structure of escalator chain
WO2022177513A1 (en) * 2020-12-28 2022-08-25 Mamur Teknoloji Sistemleri San. A.S. A press line with stainless-steel coil feeding assembly

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