CN109158682B - Electric plate shearing machine convenient to adjust - Google Patents
Electric plate shearing machine convenient to adjust Download PDFInfo
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- CN109158682B CN109158682B CN201811304323.4A CN201811304323A CN109158682B CN 109158682 B CN109158682 B CN 109158682B CN 201811304323 A CN201811304323 A CN 201811304323A CN 109158682 B CN109158682 B CN 109158682B
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- sliding
- plate shearing
- plate
- rod
- shearing machine
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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
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
- B23D15/08—Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet
-
- 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
- B23D35/005—Adjusting the position of the cutting members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
The invention relates to an electric plate shearing machine convenient to adjust, which comprises a support frame, a shell, a hydraulic machine, a lifting frame, a rotary sleeve, an upper plate shearing knife, a first spring, a blade adjusting block and a fixer, wherein a slide rod is arranged above the support frame, a slide sleeve is arranged on the outer side of the slide rod, a support rod is arranged above the slide sleeve, balls are embedded in the support rod, the shell is arranged on one side of the support frame, the hydraulic machine is arranged at the top of the shell, the lifting frame is connected below the hydraulic machine, the rotary sleeve is arranged above the lifting frame, the upper plate shearing knife is arranged on one side of the lifting frame, a pressure rod is arranged on one side of the lifting frame, and the fixer is arranged below the pressure rod. This way be convenient for electronic plate shearing machine of adjusting has avoided the tradition to adopt the mode that the bolt extrudees step by step to adjust and has leaded to the crooked condition to appear in the board sword of cutting, and the efficiency that the device adjusted simultaneously is higher, has improved the efficiency of production and processing, therefore the device more accords with the demand in market.
Description
Technical Field
The invention relates to the technical field of plate shearing machine equipment, in particular to an electric plate shearing machine convenient to adjust.
Background
Mechanical equipment is various in types, labor force of people is liberated due to the use of the mechanical equipment, tasks which cannot be completed by manpower can be completed by the aid of the mechanical equipment, and the work efficiency of production and processing is improved due to the use of the mechanical equipment.
With the rapid development of social and economic science, the updating process of mechanical equipment is also different day by day, and at present, the mechanical equipment is various in variety and is used for production and work of various industries so as to reduce the labor intensity of workers and improve the efficiency of production work, thereby increasing the use value of the mechanical equipment. The metal plates with various thicknesses are applied with shearing force by a reasonable blade gap through a movable upper blade and a fixed lower blade, so that the plates are broken and separated according to the required size. A plate shearing machine belongs to one of forging and pressing machines and mainly plays a role in the metal processing industry. The product is widely suitable for providing required special machinery and complete equipment in the industries of aviation, light industry, metallurgy, chemical industry, building, ship, automobile, electric power, electrical appliance, decoration and the like
However, most plate cutting machines in the market are inconvenient to adjust the plate shearing cutters, when a thin plate is cut, the distance between the cutters is required to be short, bolts are adopted in the market to gradually adjust, the adjustment is complex, the blades are easy to deform, and the cut plate is not flat, so that the electric plate shearing machine convenient to adjust is provided, and the problems provided in the scheme are solved.
Disclosure of Invention
The invention aims to provide an electric plate shearing machine convenient to adjust, and aims to solve the problems that most of the electric plate shearing machines in the background technology are inconvenient to adjust plate shearing cutters, the distance between the cutters is required to be short when a thin plate is cut, the adjustment is complicated due to the fact that bolts are adopted in the market to gradually adjust the plate shearing machines, blades are easy to deform, and the cut plate is not flat.
In order to achieve the purpose, the invention provides the following technical scheme: an electric plate shearing machine convenient to adjust comprises a support frame, a shell, a hydraulic machine, a lifting frame, a rotary sleeve, an upper plate shearing knife, a first spring, a blade adjusting block and a fixer, wherein a slide rod is arranged above the support frame, a slide sleeve is arranged outside the slide rod, a support rod is arranged above the slide sleeve, balls are embedded in the support rod, the shell is arranged on one side of the support frame, the hydraulic machine is arranged at the top of the shell, the lifting frame is connected below the hydraulic machine, the rotary sleeve is arranged above the lifting frame, the upper plate shearing knife is arranged on one side of the lifting frame, a connecting rod is connected to one side of the upper plate shearing knife, the first spring is embedded in the surface of the connecting rod, the blade adjusting block is arranged between the lifting frame and the upper plate shearing knife, a press rod is arranged on one side of the lifting frame, and the fixer is, and a lower shearing plate knife is arranged below the fixer.
Preferably, the number of the support rods is four, the support rods and the sliding sleeve are of an integral structure, and the sliding sleeve is in sliding connection with the sliding rod.
Preferably, the lifting frame comprises a connecting plate, a sliding hole, a first sliding groove and a second sliding groove, the sliding hole is formed above the connecting plate, the first sliding groove is formed below the connecting plate, and the second sliding groove is formed in one side of the connecting plate.
Preferably, a rotating structure is formed between the rotating sleeve and the sliding hole, and the sliding hole is in threaded connection with the threaded rod.
Preferably, the upper plate shearing knife comprises a clip and a U-shaped groove, the clip is arranged on two sides of the upper plate shearing knife, one side of the upper plate shearing knife is uniformly provided with a connecting rod, and the central position of the upper plate shearing knife is provided with the U-shaped groove.
Preferably, the blade regulating block comprises a trapezoidal block, a threaded rod and a sliding rail, the threaded rod is arranged on the inclined surface of the trapezoidal block, and the sliding rail is arranged on one side of the inclined surface far away from the trapezoidal block.
Preferably, the external dimension of the slide rail is matched with the external dimension of the second slide groove, and the angle of the inclined plane of the trapezoidal block is complementary with the angle of the inclined plane of the plate shearing knife.
Preferably, the fixer comprises a pressing plate, a sliding barrel and a second spring, the pressing plate is embedded on the pressing rod, the pressing rod and the sliding barrel are connected with each other, and the spring is installed between the pressing plate and the pressing plate.
Preferably, the sliding cylinder and the pressing plate are integrated, and the sliding cylinder and the pressing rod are in sliding connection.
Compared with the prior art, the invention has the beneficial effects that: the electric plate shearing machine convenient to adjust is provided with the lifting frame, the upper plate shearing knife and the blade adjusting block, the rotating sleeve is rotated, the threaded rod is in threaded connection with the rotating sleeve, so the rotating sleeve pulls the threaded rod upwards, the threaded rod drives the trapezoidal block to move upwards, the upper plate shearing knife starts to move leftwards because the inclined plane between the trapezoidal block and the upper plate shearing knife is complementary, the connecting rod is driven by the upper plate shearing knife to slide on the lifting frame, the first spring contracts, the distance between the upper plate shearing knife and the lower plate shearing knife in the horizontal direction starts to be reduced, the upper plate shearing knife can be more stable due to the arrangement of the clamp and the connecting rod, the shaking during the shearing is avoided, the upper plate shearing knife can be integrally and simultaneously adjusted by the mode, the upper plate shearing knife and the blade adjusting block are mutually attached tightly, and the condition that the upper plate shearing knife is bent due to the traditional mode that the bolt is adopted to gradually extrude is avoided, meanwhile, the device has higher adjusting efficiency and improves the production and processing efficiency.
In addition, the slide bars are arranged, the distance between the slide bars can be adjusted according to different cutting raw materials, when the width of the plate is small, the slide bars can be close to each other, the contact area between the balls and the plate is increased, the plate is more stable in the conveying process, acting force between the single balls and the plate is reduced, the plate is protected more, and therefore the device meets the market requirements more.
Drawings
FIG. 1 is a schematic view of an adjustable electric plate shearing machine according to the present invention;
FIG. 2 is a schematic top view of an adjustable electric plate shearing machine according to the present invention;
FIG. 3 is a schematic view of a cross-sectional structure of a lifting frame of the electric plate shearing machine convenient to adjust according to the invention;
FIG. 4 is a schematic diagram of a crane structure of an electric plate shearing machine convenient to adjust according to the present invention;
FIG. 5 is a schematic view of an upper plate shearing knife of the electric plate shearing machine convenient to adjust according to the present invention;
FIG. 6 is a schematic view of a blade adjusting block of an electric plate shearing machine convenient for adjustment according to the present invention;
fig. 7 is a partially enlarged schematic view of a portion a of fig. 1 of an electric plate shearing machine convenient to adjust according to the present invention.
In the figure: 1. the device comprises a supporting frame, 2, a sliding rod, 3, a sliding sleeve, 4, a supporting rod, 5, a ball, 6, a machine shell, 7, a hydraulic machine, 8, a lifting frame, 801, a connecting plate, 802, a sliding hole, 803, a first sliding groove, 804, a second sliding groove, 9, a rotating sleeve, 10, an upper shearing plate knife, 1001, a clip, 1002, a U-shaped groove, 11, a connecting rod, 12, a first spring, 13, a blade adjusting block, 1301, a trapezoidal block, 1302, a threaded rod, 1303, a sliding rail, 14, a pressing rod, 15, a lower shearing plate knife, 16, a fixer, 1601, a pressing plate, 1602, a pressing plate, 1603, a sliding barrel, 1604 and a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: an electric plate shearing machine convenient to adjust comprises a supporting frame 1, a sliding rod 2, a sliding sleeve 3, supporting rods 4, balls 5, a machine shell 6, a hydraulic machine 7, a lifting frame 8, a connecting plate 801, a sliding hole 802, a first sliding groove 803, a second sliding groove 804, a rotating sleeve 9, an upper plate shearing knife 10, a clamp 1001, a U-shaped groove 1002, a connecting rod 11, a first spring 12, a blade adjusting block 13, a trapezoidal block 1301, a threaded rod 1302, a sliding rail 1303, a pressing rod 14, a lower plate shearing knife 15, a fixer 16, a pressing plate 1601, a pressing plate 1602, a sliding barrel 1603 and a second spring 1604, wherein the sliding rod 2 is arranged above the supporting frame 1, the sliding sleeve 3 is installed on the outer side of the sliding rod 2, the supporting rods 4 are arranged above the sliding sleeve 3, the balls 5 are embedded in the supporting rods 4, the four supporting rods 4 are arranged, the supporting rods 4 and the sliding sleeve 3 are of an integrated structure, and the sliding, the distance between the supporting rods 4 can be conveniently adjusted according to different production raw materials, when the width of a plate is smaller, the sliding rods can be close to each other, the contact area between the balls and the plate is increased, the plate is more stable in the conveying process, in addition, the acting force between a single ball and the plate is reduced, the plate is more favorably protected, the machine shell 6 is arranged on one side of the supporting frame 1, the hydraulic machine 7 is arranged at the top of the machine shell 6, the lifting frame 8 is connected below the hydraulic machine 7, the rotary sleeve 9 is arranged above the lifting frame 8, the lifting frame 8 comprises a connecting plate 801, a sliding hole 802, a first sliding groove 803 and a second sliding groove 804, the sliding hole 802 is arranged above the connecting plate 801, the first sliding groove 803 is arranged below the connecting plate 801, the second sliding groove 804 is arranged on one side of the connecting plate 801, and the upper plate shearing knife 10 can be conveniently fixed and adjusted, the rotary sleeve 9 and the sliding hole 802 form a rotary structure, the sliding hole 802 is in threaded connection with the threaded rod 1302, the threaded rod 1302 can be driven to move upwards by rotating the rotary sleeve 9, because the inclined plane between the trapezoidal block 1301 and the upper plate shearing knife 10 is complementary, the upper plate shearing knife 10 starts to move leftwards, the device is convenient to adjust, the use is more convenient, the working efficiency of production and processing is improved, the upper plate shearing knife 10 is arranged on one side of the lifting frame 8, the upper plate shearing knife 10 comprises a clamp 1001 and a U-shaped groove 1002, the clamp 1001 is arranged on two sides of the upper plate shearing knife 10, 4 connecting rods 11 are uniformly arranged on one side of the upper plate shearing knife 10, the U-shaped groove 1002 is arranged in the center position of the upper plate shearing knife 10, the connecting rods 11 and the clamp 1001 are arranged, the upper plate shearing knife 10 is more stable, and the situation that the upper plate shearing knife 10 shakes up and down when shearing plates is avoided, the quality of a cut product is reduced, burrs and the like occur, one side of the upper plate shearing knife 10 is connected with a connecting rod 11, a first spring 12 is inlaid on the surface of the connecting rod 11, the blade adjusting block 13 is arranged between the lifting frame 8 and the upper plate shearing knife 10, the blade adjusting block 13 comprises a trapezoidal block 1301, a threaded rod 1302 and a sliding rail 1303, the threaded rod 1302 is arranged on the inclined surface of the trapezoidal block 1301, the sliding rail 1303 is arranged on one side far away from the inclined surface of the trapezoidal block 1301, the sliding rail 1303 is arranged to enable the blade adjusting block 13 to only move up and down, the situation that the blade adjusting block 13 moves left and right is avoided, the structure of the device is more stable, the external dimension of the sliding rail 1303 is mutually matched with the external dimension of the second sliding groove 804, the angle of the inclined surface of the trapezoidal block 1301 is complementary with the angle of the inclined surface of the plate shearing knife 10, and the, the upper plate shearing knife 10 can be integrally pushed, so that the distance between the upper plate shearing knife 10 and the lower plate shearing knife 15 is reduced, the situation that the upper plate shearing knife 10 is bent due to the fact that the upper plate shearing knife 10 is adjusted in a traditional mode of gradually extruding bolts is avoided, meanwhile, the adjusting efficiency of the device is higher, the production and processing efficiency is improved, a pressure lever 14 is arranged on one side of the lifting frame 8, a fixer 16 is arranged below the pressure lever 14, the fixer 16 comprises a pressure plate 1601, a pressing plate 1602, a sliding barrel 1603 and a second spring 1604, the pressure plate 1601 is inlaid on the pressure lever 14, the pressure lever 14 and the sliding barrel 1603 are connected with each other, the spring is arranged between the pressure plate 1601 and the pressing plate 1602, the fixer 16 can be in contact with a plate in advance before the plate is sheared, the pressure lever 14 slides in the sliding barrel 1603 while in contact, the second spring 1604 contracts, the pressing plate 1602 compresses the plate, when the plate is prevented from being cut, the plate is prevented from shaking, a lower shearing plate knife 15 is arranged below the fixing device 16, the sliding cylinder 1603 and the pressing plate 1602 are integrated, and the sliding cylinder 1603 and the pressing rod 14 are connected in a sliding mode, so that the plate can be compressed conveniently.
The working principle is as follows: when the electric plate shearing machine convenient to adjust is used, a plate is firstly placed above the supporting rod 4, the plate is pushed, the balls 5 start to rotate, the friction force in the moving process of the plate is reduced, the distance between the sliding rods can be adjusted according to different shearing raw materials, when the width of the plate is smaller, the sliding rods 2 can be close to each other, the contact area between the balls 5 and the plate is increased, the plate is more stable in the conveying process, in addition, the acting force between a single ball 5 and the plate is reduced, the plate is more favorably protected, then the plate is pushed to the position above the lower plate shearing knife 15, as the threaded rod 1302 is in threaded connection with the rotating sleeve 9, the rotating sleeve 9 pulls the threaded rod 1302 upwards, the threaded rod 1302 drives the trapezoidal block 1301 to move upwards, and as the inclined planes between the trapezoidal block 1301 and the upper plate shearing knife 10 are complementary, therefore, the upper plate shearing knife 10 starts to move leftwards, meanwhile, the plate shearing knife 10 drives the connecting rod 11 to slide on the lifting frame 8, the first spring 12 contracts, the distance between the upper plate shearing knife 10 and the lower plate shearing knife 15 in the horizontal direction starts to be reduced, the clamp 1001 and the connecting rod 11 are arranged, the upper plate shearing knife 10 can be more stable, shaking during cutting is avoided, the hydraulic press 7 is started through an external power supply, the hydraulic press 7 pushes the lifting frame 8 to descend, the fixing device 16 contacts with a plate in advance, the pressing rod 14 slides in the sliding barrel 1603 during contact, the second spring 1604 contracts, the pressing plate 1602 compresses the plate, then the upper plate shearing knife 10 contacts with the plate, and the plate is sheared under the action of the upper plate shearing knife 10 and the lower plate shearing knife 15, so that a series of plate shearing work is completed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an electronic plate shearing machine convenient to adjust, includes support frame (1), casing (6), hydraulic press (7), crane (8), swivel mount (9), goes up cut board sword (10), first spring (12), blade regulating block (13) and fixer (16), its characterized in that: the utility model discloses a shear-type steel plate cutting machine, including support frame (1), sliding sleeve (3) are installed in the top of support frame (1), and the outside of sliding sleeve (2) is installed sliding sleeve (3), the top of sliding sleeve (3) is provided with bracing piece (4), and the inside of bracing piece (4) inlays and has ball (5), casing (6) set up in one side of support frame (1), and the top of casing (6) installs hydraulic press (7), the below of hydraulic press (7) is connected with crane (8), and the top of crane (8) installs swivel mount (9), one side of crane (8) is provided with board sword (10) of cutting, one side of board sword (10) of cutting is connected with connecting rod (11), and the surface mosaic of connecting rod (11) has first spring (12), blade regulating block (13) set up between crane (8) and board sword (10) of cutting, one side of crane (8) is provided with depression bar (14), and a fixer (16) is arranged below the pressure lever (14), and a lower shearing plate knife (15) is arranged below the fixer (16).
2. An adjustable, electric plate shearing machine as defined in claim 1 wherein: the number of the supporting rods (4) is four, the supporting rods (4) and the sliding sleeve (3) are of an integrated structure, and the sliding sleeve (3) is in sliding connection with the sliding rod (2).
3. An adjustable, electric plate shearing machine as defined in claim 1 wherein: the lifting frame (8) comprises a connecting plate (801), a sliding hole (802), a first sliding groove (803) and a second sliding groove (804), the sliding hole (802) is arranged above the connecting plate (801), the first sliding groove (803) is arranged below the connecting plate (801), and the second sliding groove (804) is arranged on one side of the connecting plate (801).
4. An adjustable, electric plate shearing machine as defined in claim 1 wherein: a rotating structure is formed between the rotating sleeve (9) and the sliding hole (802), and the sliding hole (802) is in threaded connection with the threaded rod (1302).
5. An adjustable, electric plate shearing machine as defined in claim 1 wherein: the upper plate shearing knife (10) comprises clips (1001) and U-shaped grooves (1002), the clips (1001) are arranged on two sides of the upper plate shearing knife (10), 4 connecting rods (11) are uniformly arranged on one side of the upper plate shearing knife (10), and the U-shaped grooves (1002) are formed in the center position of the upper plate shearing knife (10).
6. An adjustable, electric plate shearing machine as defined in claim 1 wherein: the blade adjusting block (13) comprises a trapezoidal block (1301), a threaded rod (1302) and a sliding rail (1303), wherein the threaded rod (1302) is arranged on the inclined surface of the trapezoidal block (1301), and the sliding rail (1303) is arranged on one side of the inclined surface far away from the trapezoidal block (1301).
7. An adjustable electric plate shearing machine as claimed in claim 6 wherein: the external dimension of the slide rail (1303) is matched with the external dimension of the second sliding chute (804), and the angle of the inclined surface of the trapezoidal block (1301) is complementary with that of the plate shearing knife (10).
8. An adjustable, electric plate shearing machine as defined in claim 1 wherein: the fixer (16) comprises a pressing plate (1601), a pressing plate (1602), a sliding barrel (1603) and a second spring (1604), the pressing plate (1601) is inlaid on the pressing rod (14), the pressing rod (14) and the sliding barrel (1603) are connected with each other, and the spring is installed between the pressing plate (1601) and the pressing plate (1602).
9. An adjustable, electric plate shearing machine as defined in claim 8 wherein: the sliding cylinder (1603) and the pressing plate (1602) are integrated, and the sliding cylinder (1603) and the pressing rod (14) are in sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304323.4A CN109158682B (en) | 2018-11-03 | 2018-11-03 | Electric plate shearing machine convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304323.4A CN109158682B (en) | 2018-11-03 | 2018-11-03 | Electric plate shearing machine convenient to adjust |
Publications (2)
| Publication Number | Publication Date |
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| CN109158682A CN109158682A (en) | 2019-01-08 |
| CN109158682B true CN109158682B (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811304323.4A Active CN109158682B (en) | 2018-11-03 | 2018-11-03 | Electric plate shearing machine convenient to adjust |
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| CN (1) | CN109158682B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114985819B (en) * | 2022-06-29 | 2024-01-30 | 江苏中海重型机床有限公司 | Cutting edge spacing accurately adjustable shearing plate structure for numerical control shearing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2523290A1 (en) * | 1974-05-29 | 1976-02-26 | Boschert Ludwig Fa | Stamping or notching machine for sheet metal working - where punch is driven by a reciprocating wedge |
| CN201264166Y (en) * | 2008-05-30 | 2009-07-01 | 比亚迪股份有限公司 | Numerical control machining clamper |
| CN202239665U (en) * | 2011-06-04 | 2012-05-30 | 辽宁工程职业学院 | Tool holder with adjustable center height of point of cutter and used in turning tool |
| CN103639443B (en) * | 2013-11-27 | 2016-03-16 | 无锡压缩机股份有限公司 | A kind of central height adjustable type numerical control lathe tool rest drill clamp |
| CN204209473U (en) * | 2014-11-14 | 2015-03-18 | 宜宾质力信机械制造有限责任公司 | Two sides location type planer frock |
| CN204587328U (en) * | 2015-03-31 | 2015-08-26 | 李海红 | Aircraft lock plunger assembly |
| CN207887894U (en) * | 2018-01-05 | 2018-09-21 | 天津职业技术师范大学 | A kind of novel lathe knife rest |
| CN207840749U (en) * | 2018-01-30 | 2018-09-11 | 厦门市佳嘉达机械有限公司 | Metal parts fixture |
| CN207982406U (en) * | 2018-03-04 | 2018-10-19 | 无锡杰夫机械科技有限公司 | A kind of automobile stamping bar strip cutting mechanism |
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2018
- 2018-11-03 CN CN201811304323.4A patent/CN109158682B/en active Active
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Denomination of invention: An easy to adjust electric plate shears Effective date of registration: 20221228 Granted publication date: 20200204 Pledgee: Nanjing Branch of Jiangsu Bank Co.,Ltd. Pledgor: NANJING JINQIU CNC MACHINE TOOL Co.,Ltd. Registration number: Y2022980029313 |
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