CN107470702B - Special cutter for shearing C-shaped steel member after forming - Google Patents
Special cutter for shearing C-shaped steel member after forming Download PDFInfo
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- CN107470702B CN107470702B CN201710698677.0A CN201710698677A CN107470702B CN 107470702 B CN107470702 B CN 107470702B CN 201710698677 A CN201710698677 A CN 201710698677A CN 107470702 B CN107470702 B CN 107470702B
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- Prior art keywords
- knife
- fixed
- reinforcing plate
- movable
- movable knife
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/001—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools cutting members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/002—Means for mounting the cutting members
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories And Tools For Shearing Machines (AREA)
- Shearing Machines (AREA)
Abstract
The invention discloses a special cutting knife for shearing after forming of a C-shaped steel member, which comprises a movable knife fixed on a movable knife fixing plate and a fixed knife fixed on the fixed knife fixing plate, wherein the fixed knife and the movable knife are respectively provided with a fixed knife reinforcing plate and a movable knife reinforcing plate which are tightly attached to the fixed knife and the movable knife, the fixed knife reinforcing plate is respectively fixedly connected with the fixed knife fixing plate and the fixed knife, the movable knife reinforcing plate is respectively fixedly connected with the movable knife fixing plate and the movable knife, the movable knife fixing plate is fixed on a hydraulic shear frame, and the fixed knife fixing plate is fixed on a support frame. The hydraulic shear unit has the advantages of compact structure, reasonable design, good bearing capacity and good stability, and the device is convenient to disassemble and assemble with the hydraulic shear frame and has good shearing effect, and the die has good structural performance and stable performance through test machine test.
Description
Technical Field
The invention belongs to the technical field of steel member cutting tools in the cold bending industry, and particularly relates to a special cutting tool for shearing after forming of a C-shaped steel member.
Background
In the existing cold bending production line, when the thickness of a cutting blade is larger than 4mm in the past, the thickness of the cutting blade needs to be increased, quenching is easy to deform, punching is difficult, processing difficulty is high, materials are wasted, the weight of the whole scissors is heavy, local blade openings are easy to crack due to poor stress conditions, and corresponding servo tracking cutting speed is difficult to promote, so that the efficiency of the whole production line is affected.
Disclosure of Invention
The invention solves the technical problem of providing the special cutting knife for cutting the formed C-shaped steel member, which has the advantages of compact structure, reasonable design, good bearing capacity and good stability.
The special cutting knife for shearing after the C-shaped steel member is molded is characterized by comprising a movable knife fixed on a movable knife fixing plate and a fixed knife fixed on the fixed knife fixing plate, wherein the fixed knife and the movable knife are respectively provided with a fixed knife reinforcing plate and a movable knife reinforcing plate which are tightly attached to the fixed knife and the movable knife, the fixed knife reinforcing plate is respectively and fixedly connected with the fixed knife fixing plate and the fixed knife, the movable knife reinforcing plate is respectively and fixedly connected with the movable knife fixing plate and the movable knife, the movable knife fixing plate is fixed on a hydraulic shear frame, and the fixed knife fixing plate is fixed on a support frame.
Further preferably, the movable knife reinforcing plate is a T-shaped structure reinforcing plate formed by a transverse reinforcing plate and a vertical reinforcing plate, the connection part of the transverse reinforcing plate and the movable knife fixing plate is reinforced and positioned through a frame fixing key, the vertical reinforcing plate extends to the inside of the movable knife cavity, and the connection part of the vertical reinforcing plate and the movable knife is reinforced and positioned through a cutter fixing key.
Further preferably, the fixed blade reinforcing plate is a T-shaped structural reinforcing plate consisting of a transverse reinforcing plate and a vertical reinforcing plate, the connection part of the transverse reinforcing plate and the fixed blade fixing plate is reinforced and positioned through a frame fixing key, the vertical reinforcing plate extends to the inside of the fixed blade cavity, and the connection part of the vertical reinforcing plate and the fixed blade is reinforced and positioned through a cutter fixing key.
Further preferably, the cutter fixing key is a T-shaped fixing key, and the T-shaped fixing key is located at the geometric center of the cutter cavity.
Further preferably, the moving blade and the fixed blade are both made of Cr 12 The MoV material is formed by quenching treatment after molding and is used for ensuring the strength and the surface hardness of the movable knife and the fixed knife.
Further preferably, the non-working surfaces of the movable knife and the fixed knife to the knife cavity are provided with round corners for ensuring smooth feeding of the C-shaped steel member.
Compared with the prior art, the invention has the following advantages: the cutter is convenient to assemble and disassemble with the hydraulic shear frame, has good shearing effect, and has good structural performance of the die, and the whole shearing unit has stable performance through test by a test machine.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the structure of the stationary knife of the present invention;
FIG. 4 is a schematic structural view of a stationary blade reinforcement plate according to the present invention;
FIG. 5 is a state of use of the present invention;
fig. 6 is a cross-sectional view of fig. 5 taken along the direction F-F.
In the figure: 1. moving knife fixing plate 2, moving knife, 3, fixed knife fixing plate, 4, fixed knife, 5, fixed knife reinforcing plate, 6, moving knife reinforcing plate, 7, inner hexagonal screw, 8, frame fixing key, 9, T type fixing key.
Detailed Description
The technical scheme of the invention is described in detail by combining with the accompanying drawings, the special shearing knife for shearing after the C-shaped steel member is formed comprises a movable knife 2 fixed on a movable knife fixing plate 1 and a fixed knife 4 fixed on a fixed knife fixing plate 3, the fixed knife 4 and the movable knife 2 are respectively provided with a fixed knife reinforcing plate 5 and a movable knife reinforcing plate 6 which are tightly attached to the fixed knife 4 and the movable knife 2, the fixed knife reinforcing plate 5 is respectively fixedly connected with the fixed knife fixing plate 3 and the fixed knife 4 through socket head cap screws 7, the movable knife reinforcing plate 6 is respectively fixedly connected with the movable knife fixing plate 1 and the movable knife 2 through socket head cap screws 7, the movable knife reinforcing plate 6 is a T-shaped structural reinforcing plate formed by a transverse reinforcing plate and a vertical reinforcing plate, the joint of the transverse reinforcing plate and the movable knife fixing plate 1 is fixedly positioned through a frame fixing key 8, the vertical reinforcing plate extends to the inside of a movable knife cavity and is fixedly positioned through a T-shaped fixing key 9, the fixed knife reinforcing plate 5 is a T-shaped structural reinforcing plate formed by a transverse reinforcing plate and a vertical reinforcing plate, the joint of the transverse reinforcing plate and the movable knife 2 is fixedly connected with the fixed knife cavity 3 through a fixing frame fixing key 9, and the vertical reinforcing plate is fixedly positioned on the frame fixing frame 3 through the fixing key 3.
The cutting knife (moving knife and fixed knife) is made of Cr 12 The MoV material is manufactured by quenching after being molded, and is used for guaranteeing the strength and the surface hardness of a cutter, and a non-working surface of a cutter cavity is provided with a round angle to guarantee smooth feeding of the section; the cutter reinforcing plate (a movable cutter reinforcing plate and a fixed cutter reinforcing plate) is formed by 45 # The steel plate is manufactured and subjected to quenching and tempering, and the cutter reinforcing plate is tightly attached to the cutter, so that the cutter is ensured to be stressed uniformly and not to deform; the frame fixing key adopts an international flat key, the cutter reinforcing plate is fixed on the cutter fixing plate, and the rigidity of the connection between the cutter reinforcing plate and the cutter is ensured by matching with an inner hexagonal screw, so that the overall strength is improved; the cutter fixing key (T-shaped fixing key) is arranged on the connection of the cutter and the cutter reinforcing plate by adopting an international flat keyThe joint is positioned at the geometric center of the cutter cavity, so that the connection strength of the cutter and the cutter reinforcing plate is increased, and the deformation of the cutter is further reduced; the inner hexagon screw adopts 8.8 grades of screws, fixes the cutter reinforcing plate on the cutter and cooperates with the cutter fixing piece to use, and connects the cutter and the cutter reinforcing plate as a whole to increase the strength.
According to the invention, the cutter thickness is thinner, the cutter reinforcing plate is added on the outer side of the cutter for increasing the cutter strength, so that the cutter is prevented from deforming, the stress of the whole cutter is more uniform, the cutter edge is prevented from cracking, the cutter thickness and the shape of the cutter reinforcing plate are checked through finite element analysis, the cutter weight is reduced as much as possible under the condition that the cutter strength is not influenced, the shearing speed is improved, and the servo tracking speed is effectively improved, so that the production efficiency of the whole production line is improved.
While the basic principles of the invention have been shown and described, there are various changes and modifications to the invention, which fall within the scope of the invention as hereinafter claimed, without departing from the spirit and scope of the invention.
Claims (3)
- The special cutting knife for shearing after the C-shaped steel member is formed is characterized by comprising a movable knife fixed on a movable knife fixing plate and a fixed knife fixed on the fixed knife fixing plate, wherein the fixed knife and the movable knife are respectively provided with a fixed knife reinforcing plate tightly attached to the fixed knife and the movable knife and a movable knife reinforcing plate, the fixed knife reinforcing plate is respectively fixedly connected with the fixed knife fixing plate and the fixed knife, the movable knife reinforcing plate is respectively fixedly connected with the movable knife fixing plate and the movable knife, the movable knife fixing plate is fixed on a hydraulic shear frame, the fixed knife fixing plate is fixed on a supporting frame, the joint of the movable knife reinforcing plate and the movable knife fixing plate is reinforced and positioned through a frame fixing key, the vertical reinforcing plate extends to the inside of a movable knife cavity and the joint of the movable knife is reinforced and positioned through a cutter fixing key, the joint of the horizontal reinforcing plate and the fixed knife fixing plate is reinforced and positioned through a frame fixing key, and the vertical reinforcing plate extends to the inside of the fixed knife cavity and the fixed cavity is reinforced and the fixed cavity is positioned through a T-shaped structure reinforcing key.
- 2. The special cutter for shearing after forming of the C-shaped steel member according to claim 1, wherein: the moving knife and the fixed knife are both made of Cr 12 The MoV material is formed by quenching treatment after molding and is used for ensuring the strength and the surface hardness of the movable knife and the fixed knife.
- 3. The special cutter for shearing after forming of the C-shaped steel member according to claim 1, wherein: and the non-working surfaces of the movable cutter cavity and the fixed cutter cavity are respectively provided with a round angle for ensuring smooth feeding of the C-shaped steel member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698677.0A CN107470702B (en) | 2017-08-15 | 2017-08-15 | Special cutter for shearing C-shaped steel member after forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698677.0A CN107470702B (en) | 2017-08-15 | 2017-08-15 | Special cutter for shearing C-shaped steel member after forming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107470702A CN107470702A (en) | 2017-12-15 |
| CN107470702B true CN107470702B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710698677.0A Active CN107470702B (en) | 2017-08-15 | 2017-08-15 | Special cutter for shearing C-shaped steel member after forming |
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| Country | Link |
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| CN (1) | CN107470702B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580648B (en) * | 2018-01-28 | 2024-03-01 | 新乡天丰机械制造有限公司 | Shearing tool for open section bar |
| CN109014393A (en) * | 2018-07-17 | 2018-12-18 | 马鞍山市国菱机械刃模有限公司 | A kind of cutter blade holder |
| CN109909545B (en) * | 2019-03-18 | 2020-06-02 | 新乡天丰机械制造有限公司 | Quick locking device of opening section bar shaping scissors |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059826U (en) * | 1991-07-22 | 1993-02-09 | 住友金属工業株式会社 | Shaped steel cutting equipment |
| CN104741681A (en) * | 2015-03-23 | 2015-07-01 | 四川省青神神力机械有限公司 | Large rake angle staggering shearing die |
| CN105252596A (en) * | 2015-10-29 | 2016-01-20 | 蒋瑾 | Buffering type high-strength and burr-free sterilizing and light-emitting cutting tool |
| CN105252592A (en) * | 2015-10-29 | 2016-01-20 | 蒋瑾 | Light, sterilizing and light-emitting cutting tool high in strength and free of burr |
| CN205614130U (en) * | 2016-05-03 | 2016-10-05 | 无锡市光彩机械制造有限公司 | Highly resistance power combination blade of shaped steel cutter |
| CN106393228A (en) * | 2015-10-30 | 2017-02-15 | 广东科利亚现代农业装备有限公司 | Improved sectioning device |
| CN207171083U (en) * | 2017-08-15 | 2018-04-03 | 新乡天丰机械制造有限公司 | Special cutter is sheared after C-type steel molding component |
-
2017
- 2017-08-15 CN CN201710698677.0A patent/CN107470702B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059826U (en) * | 1991-07-22 | 1993-02-09 | 住友金属工業株式会社 | Shaped steel cutting equipment |
| CN104741681A (en) * | 2015-03-23 | 2015-07-01 | 四川省青神神力机械有限公司 | Large rake angle staggering shearing die |
| CN105252596A (en) * | 2015-10-29 | 2016-01-20 | 蒋瑾 | Buffering type high-strength and burr-free sterilizing and light-emitting cutting tool |
| CN105252592A (en) * | 2015-10-29 | 2016-01-20 | 蒋瑾 | Light, sterilizing and light-emitting cutting tool high in strength and free of burr |
| CN106393228A (en) * | 2015-10-30 | 2017-02-15 | 广东科利亚现代农业装备有限公司 | Improved sectioning device |
| CN205614130U (en) * | 2016-05-03 | 2016-10-05 | 无锡市光彩机械制造有限公司 | Highly resistance power combination blade of shaped steel cutter |
| CN207171083U (en) * | 2017-08-15 | 2018-04-03 | 新乡天丰机械制造有限公司 | Special cutter is sheared after C-type steel molding component |
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| CN107470702A (en) | 2017-12-15 |
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