CN107297521A - A kind of stable drilling equipment for main frame box structure - Google Patents

A kind of stable drilling equipment for main frame box structure Download PDF

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Publication number
CN107297521A
CN107297521A CN201710573627.XA CN201710573627A CN107297521A CN 107297521 A CN107297521 A CN 107297521A CN 201710573627 A CN201710573627 A CN 201710573627A CN 107297521 A CN107297521 A CN 107297521A
Authority
CN
China
Prior art keywords
fixedly connected
housing
montant
inwall
transverse slat
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201710573627.XA
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Chinese (zh)
Inventor
汪海文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Leicheng Information Technology Co ltd
Original Assignee
Hefei Leicheng Information Technology Co ltd
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 Hefei Leicheng Information Technology Co ltd filed Critical Hefei Leicheng Information Technology Co ltd
Priority to CN201710573627.XA priority Critical patent/CN107297521A/en
Publication of CN107297521A publication Critical patent/CN107297521A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/28Electric drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention discloses a kind of stable drilling equipment for main frame box structure, including housing, transverse slat is fixedly connected between the both sides of housing inwall, screw mandrel is rotatably connected between the both sides of housing inwall bottom, the both sides on screw mandrel surface are threaded with movable block, montant is fixedly connected with the top of movable block, the top of montant runs through transverse slat and extends to the top of transverse slat, one end that montant is located at the top of transverse slat is fixedly connected with fixing device, top frame is fixedly connected with the top of housing, the bottom of top frame inwall is fixedly connected with the first motor, one end of first motor output shaft is fixedly connected with the first belt pulley, the present invention relates to computer-related technologies field.The stable drilling equipment of the computer host box, has reached the purpose for adapting to different size cabinet, can adjust the position of montant, be easy to that different size of cabinet is fixed, it is ensured that the quality of drilling, add the efficiency of drilling, reduce waste of time.

Description

A kind of stable drilling equipment for main frame box structure
Technical field
The present invention relates to computer-related technologies field, specially a kind of stable drilling for main frame box structure Device.
Background technology
Computer is commonly called as computer, is a kind of electronic computer device for supercomputing, can carry out numerical computations, again may be used It is that can be run according to program also with store-memory function to carry out logical calculated, automatic, high speed processing mass data Intelligent electronic device is modernized, is made up of hardware system and software systems, the computer for being fitted without any software is referred to as naked Machine, can be divided into supercomputer, industrial control computer, network computer, personal computer, the class of embedded computer five, compared with Advanced computer has biocomputer, photonic computer, quantum computer etc..
Computer host box is required for drilling to mainframe box in production process is carried out, existing drilling equipment, nothing Method is stable by mainframe box, easily causes drilling failure, and existing fixing device can not adapt to the mainframe box of a variety of sizes.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of stable drilling dress for main frame box structure Put, solve existing drilling equipment, it is impossible to which mainframe box is stable, easily cause drilling failure, and existing fixing device The problem of a variety of size mainframe boxes can not be adapted to.
To realize object above, the present invention is achieved by the following technical programs:
A kind of stable drilling equipment for main frame box structure, including housing, the both sides of the housing inwall it Between be fixedly connected between transverse slat, the both sides of the housing inwall bottom and be rotatably connected to screw mandrel, the both sides on the screw mandrel surface It is threaded with the top of movable block, the movable block and is fixedly connected with montant, the top of the montant is run through transverse slat and prolonged The top of transverse slat is extended, one end that the montant is located at the top of transverse slat is fixedly connected with fixing device, and the top of the housing is consolidated Surely top frame is connected with, the bottom of the top frame inwall is fixedly connected with the first motor, and one end of first motor output shaft is consolidated Surely the first belt pulley is connected with, the surface of first belt pulley is connected with the second belt pulley, described second by belt transmission The back side of belt pulley, which is fixedly connected with to fix by the bottom of pinion stand and top frame inwall at gear, the axle center of the gear, to be connected Connect, the side of the gear is engaged with ratch, and the bottom of the ratch sequentially passes through top frame and housing and extends to the interior of housing Portion, one end that the ratch is located inside housing, which is fixedly connected with the top of electronic box, the electronic box inwall, is fixedly connected with second Motor, one end of second motor output shaft runs through electronic box and extends to the outside of outer electronic box, the output of second motor The one end of axle position outside electronic box is fixedly connected with drill bit.
It is preferred that, the top and bottom that the fixing device includes on the left of fixed plate, the fixed plate have been fixedly connected with Fixed frame, the surface of the fixed frame slidably connects sliding block, solid between the side of the sliding block and the side of fixed frame inwall Surely spring is connected with, the side of the sliding block is connected with base, the right side of the base and a left side for fixed frame by link rotatable It is fixedly connected between side on the left of expansion link, the base and is fixedly connected with riser, the bottom of the riser and the top of montant End is fixedly connected.
It is preferred that, one end of the screw mandrel runs through housing and extends to the outside of housing, and the screw mandrel is located at outside housing One end be fixedly connected with turning handle.
It is preferred that, it is fixedly connected with limited block in the middle part of the screw mandrel surface.
It is preferred that, the surface of the housing is hinged with chamber door by hinge.
Beneficial effect
The invention provides a kind of stable drilling equipment for main frame box structure.Possesses following beneficial effect:
(1) connecting filament is rotated between, the stable drilling equipment of the computer host box, the both sides by housing inwall bottom Bar, the both sides on screw mandrel surface, which are threadedly coupled at the top of movable block, movable block, is fixedly connected with montant, and transverse slat is run through on the top of montant And the top of transverse slat is extended to, the bottom of top frame inwall is fixedly connected with the first motor, and one end of the first motor output shaft, which is fixed, to be connected The first belt pulley is connect, the surface of the first belt pulley connects the second belt pulley by belt transmission, and the back side of the second belt pulley is fixed Connect and be fixedly connected at gear, the axle center of gear by pinion stand with the bottom of top frame inwall, the side engagement ratch of gear, tooth The bottom of bar sequentially passes through top frame and housing and extends to the inside of housing, and one end that ratch is located inside housing is fixedly connected with electricity The second motor is fixedly connected with the top of case, electronic box inwall, one end of the second motor output shaft runs through electronic box and extends to outer electronic box Outside, one end that the output shaft of the second motor is located at outside electronic box is fixedly connected with drill bit, has reached adaptation different size cabinet Purpose, the position of montant can be adjusted, be easy to that different size of cabinet is fixed, be easy to drilling progress.
(2), the stable drilling equipment of the computer host box, is fixedly connected with solid by the top and bottom on the left of fixed plate Determine frame, the surface of fixed frame is slidably connected sliding block, and spring is fixedly connected between the side and the side of fixed frame inwall of sliding block, sliding The side of block is fixedly connected with expansion link, base by link rotatable connect base between the right side of base and the left side of fixed frame Left side be fixedly connected with riser, the bottom of riser is fixedly connected with the top of montant, has reached the purpose of stable drilling, it is ensured that The quality of drilling, adds the efficiency of drilling, reduces waste of time.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the structural representation of chamber door of the present invention;
Fig. 3 is the structural representation of fixing device of the present invention.
In figure:1 housing, 2 screw mandrels, 3 movable blocks, 4 limited blocks, 5 montants, 6 transverse slats, 7 turning handles, 8 fixing devices, 81 risers, 82 bases, 83 springs, 84 sliding blocks, 85 connecting rods, 86 fixed plates, 87 expansion links, 88 fixed frames, 9 top frames, 10 first motors, 11 One belt pulley, 12 belts, 13 gears, 14 second belt pulleys, 15 ratch, 16 second motors, 17 electronic boxs, 18 drill bits, 19 chamber doors.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme:
A kind of stable drilling equipment for main frame box structure, including housing 1, the surface of housing 1 passes through hinge It is hinged between chamber door 19, the both sides of the inwall of housing 1 and is fixedly connected with transverse slat 6, the company of rotation between the both sides of the inwall bottom of housing 1 Screw mandrel 2 is connected to, one end of screw mandrel 2 runs through housing 1 and extends to the outside of housing 1, and one end that screw mandrel 2 is located at outside housing 1 is consolidated Surely it is connected with the middle part of turning handle 7, the surface of screw mandrel 2 and is fixedly connected with limited block 4, the both sides on the surface of screw mandrel 2 is threaded with shifting Motion block 3, the top of movable block 3 is fixedly connected with montant 5, and the top of montant 5 runs through transverse slat 6 and extends to the top of transverse slat 6, horizontal The loose slot being adapted with montant 5 is offered on plate 6, one end that montant 5 is located at the top of transverse slat 6 is fixedly connected with fixing device 8, The top of housing 1 is fixedly connected with top frame 9, and the bottom of the inwall of top frame 9 is fixedly connected with the first motor 10, and the first motor 10 is three Phase asynchronous motor, one end of the output shaft of the first motor 10 is fixedly connected with the first belt pulley 11, the surface of the first belt pulley 11 Second belt pulley 14 is connected with by belt 12, the back side of the second belt pulley 14 is fixedly connected with gear 13, gear 13 It is fixedly connected at axle center by pinion stand with the bottom of the inwall of top frame 9, the side of gear 13 is engaged with ratch 15, the bottom of ratch 15 End sequentially passes through top frame 9 and housing 1 and the inside for extending to housing 1, and one end that ratch 15 is located inside housing 1 is fixedly connected with The second motor 16 is fixedly connected with the top of electronic box 17, the inwall of electronic box 17, electronic box 17 is run through in one end of the output shaft of the second motor 16 And the outside of outer electronic box 17 is extended to, one end that the output shaft of the second motor 16 is located at outside electronic box 17 is fixedly connected with drill bit 18, fixing device 8 includes fixed plate 83, and the top and bottom in the left side of fixed plate 83 have been fixedly connected with fixed frame 88, fixed frame 88 surface slidably connects sliding block 84, and spring is fixedly connected between the side of sliding block 84 and the side of the inwall of fixed frame 88 83, the side of sliding block 84 is rotatably connected to base 82 by connecting rod 85, solid between the right side of base 82 and the left side of fixed frame 88 Surely expansion link 87 is connected with, the left side of base 82 is fixedly connected with riser 81, and the bottom of riser 81 is fixed with the top of montant 5 to be connected Connect.
In use, the mainframe box for needing to drill to be placed on to the top of transverse slat 6, rotate turning handle 7 and drive screw mandrel 2 to rotate, band Dynamic movable block 3 is moved, and drives montant 5 to move, and drives fixing device 8 to move, and is easy to the clamping and fixation to cabinet, and by solid The vibrations for cabinet of determining device 8 when can reduce drilling, open the second motor 16 and drive drill bit 18 to rotate, then open the first motor 10 the first belt pulleys 11 of drive are rotated, and drive the second belt pulley 14 to rotate by belt 12, and band moving gear 13 is rotated, and drives ratch 15 decline, you can realize drilling.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that Also there is other identical element in the process including the key element, method, article or equipment ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of stable drilling equipment for main frame box structure, including housing (1), it is characterised in that:
It is fixedly connected between the both sides of housing (1) inwall between transverse slat (6), the both sides of housing (1) the inwall bottom Screw mandrel (2) is rotatably connected to, the both sides on screw mandrel (2) surface are threaded with movable block (3), the movable block (3) Top is fixedly connected with montant (5), and the top of the montant (5) runs through transverse slat (6) and extends to the top of transverse slat (6), described One end that montant (5) is located at the top of transverse slat (6) is fixedly connected with fixing device (8);
Top frame (9) is fixedly connected with the top of the housing (1), the bottom of top frame (9) inwall is fixedly connected with the first electricity Machine (10), one end of the first motor (10) output shaft is fixedly connected with the first belt pulley (11), first belt pulley (11) surface is connected with the second belt pulley (14) by belt (12), and the back side of second belt pulley (14), which is fixed, to be connected It is connected at gear (13), the axle center of the gear (13) and is fixedly connected by pinion stand with the bottom of top frame (9) inwall, the tooth The side of wheel (13) is engaged with ratch (15);
The bottom of the ratch (15) sequentially passes through top frame (9) and housing (1) and the inside for extending to housing (1), the ratch (15) it is fixedly connected with the top of electronic box (17), electronic box (17) inwall and is fixedly connected with positioned at the internal one end of housing (1) Second motor (16), one end of the second motor (16) output shaft runs through electronic box (17) and extends to the outer of outer electronic box (17) Portion, the output shaft of second motor (16) is located at the outside one end of electronic box (17) and is fixedly connected with drill bit (18).
2. a kind of stable drilling equipment for main frame box structure according to claim 1, it is characterised in that:Institute The top and bottom that stating fixing device (8) is included on the left of fixed plate (83), the fixed plate (83) have been fixedly connected with fixed frame (88), the surface of the fixed frame (88) slidably connects sliding block (84), and the side of the sliding block (84) and fixed frame (88) are interior Spring (83) is fixedly connected between the side of wall, the side of the sliding block (84) is rotatably connected to base by connecting rod (85) (82) expansion link (87), the base, are fixedly connected between the right side of the base (82) and the left side of fixed frame (88) (82) riser (81) is fixedly connected with the left of, the bottom of the riser (81) is fixedly connected with the top of montant (5).
3. a kind of stable drilling equipment for main frame box structure according to claim 1, it is characterised in that:Institute The one end for stating screw mandrel (2) runs through housing (1) and extends to the outside of housing (1), and the screw mandrel (2) is located at housing (1) outside One end is fixedly connected with turning handle (7).
4. a kind of stable drilling equipment for main frame box structure according to claim 1, it is characterised in that:Institute State and be fixedly connected with limited block (4) in the middle part of screw mandrel (2) surface.
5. a kind of stable drilling equipment for main frame box structure according to claim 1, it is characterised in that:Institute The surface for stating housing (1) is hinged with chamber door (19) by hinge.
CN201710573627.XA 2017-07-14 2017-07-14 A kind of stable drilling equipment for main frame box structure Pending CN107297521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710573627.XA CN107297521A (en) 2017-07-14 2017-07-14 A kind of stable drilling equipment for main frame box structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710573627.XA CN107297521A (en) 2017-07-14 2017-07-14 A kind of stable drilling equipment for main frame box structure

Publications (1)

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Cited By (22)

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CN107825237A (en) * 2017-11-24 2018-03-23 王朝 A kind of five metalworking sanding and polishing machines of high accuracy
CN107866996A (en) * 2017-12-02 2018-04-03 无锡汇欧陶瓷有限公司 One kind heating ceramic tile processing forcing press
CN107901250A (en) * 2017-12-05 2018-04-13 无锡汇欧陶瓷有限公司 A kind of portable ceramic tile safety cutting device
CN108032133A (en) * 2017-11-30 2018-05-15 陈水林 A kind of auto parts machinery processing perforating device
CN108067646A (en) * 2017-12-21 2018-05-25 郑州赫恩电子信息技术有限公司 A kind of mechanical processing is with gripping processing unit (plant)
CN108115496A (en) * 2017-12-19 2018-06-05 珠海智星荟科技服务有限公司 A kind of novel metal cuts grinding apparatus
CN108213396A (en) * 2017-12-13 2018-06-29 建始县楚瑜精密铸造有限责任公司 A kind of novel casting cleaning device
CN108296390A (en) * 2017-12-27 2018-07-20 合肥市硕理机电科技有限公司 A kind of strong bar cropper of stability
CN108340255A (en) * 2017-12-13 2018-07-31 建始县楚瑜精密铸造有限责任公司 A kind of metal grinding device
CN108356908A (en) * 2017-12-27 2018-08-03 佛山杰致信息科技有限公司 A kind of electronic component control panel perforating device
CN108526521A (en) * 2018-03-23 2018-09-14 湖州弘盛消防设备有限公司 A kind of fire fighting truck inner body drilling equipment
CN108555351A (en) * 2018-07-19 2018-09-21 钟晓芳 A kind of chip preparation drilling equipment
CN108818050A (en) * 2018-07-25 2018-11-16 苏州谊佳润机电制造有限公司 A kind of process equipment of fixation efficiently automatic assembly line supporting leg
CN108927677A (en) * 2018-07-03 2018-12-04 柳州通亿汽车配件制造有限公司 A kind of machining fixture convenient for adjusting
CN109168282A (en) * 2018-10-15 2019-01-08 合肥鸿坤通信工程有限公司 A kind of novel and multifunctional heat dissipation outdoor communication case apparatus
CN109202129A (en) * 2018-10-30 2019-01-15 安庆市睿霞机械有限公司 Drilling device is used in a kind of processing of chemical attachment
CN109648118A (en) * 2019-01-28 2019-04-19 合肥清若科技有限公司 A kind of easy to operate computer production plate drilling equipment
CN109702581A (en) * 2019-01-28 2019-05-03 合肥清若科技有限公司 Edging device is used in a kind of production of computer
CN109755895A (en) * 2017-11-08 2019-05-14 临泽县锐翔科技开发有限责任公司 A kind of safe bobbin winder device of communication cable
CN109909522A (en) * 2019-03-27 2019-06-21 杭州初始服饰有限公司 A kind of aluminum alloy mould plate equipment
CN112317809A (en) * 2020-11-12 2021-02-05 长春一汽四环力达冲压制品有限公司 Automatic punching device for vehicle thermal forming floor beam
CN115069863A (en) * 2022-08-19 2022-09-20 诸城开元节能科技有限公司 Stamping tool for motor machining

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Cited By (22)

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Publication number Priority date Publication date Assignee Title
CN109755895A (en) * 2017-11-08 2019-05-14 临泽县锐翔科技开发有限责任公司 A kind of safe bobbin winder device of communication cable
CN107825237A (en) * 2017-11-24 2018-03-23 王朝 A kind of five metalworking sanding and polishing machines of high accuracy
CN108032133A (en) * 2017-11-30 2018-05-15 陈水林 A kind of auto parts machinery processing perforating device
CN107866996A (en) * 2017-12-02 2018-04-03 无锡汇欧陶瓷有限公司 One kind heating ceramic tile processing forcing press
CN107901250A (en) * 2017-12-05 2018-04-13 无锡汇欧陶瓷有限公司 A kind of portable ceramic tile safety cutting device
CN108213396A (en) * 2017-12-13 2018-06-29 建始县楚瑜精密铸造有限责任公司 A kind of novel casting cleaning device
CN108340255A (en) * 2017-12-13 2018-07-31 建始县楚瑜精密铸造有限责任公司 A kind of metal grinding device
CN108115496A (en) * 2017-12-19 2018-06-05 珠海智星荟科技服务有限公司 A kind of novel metal cuts grinding apparatus
CN108067646A (en) * 2017-12-21 2018-05-25 郑州赫恩电子信息技术有限公司 A kind of mechanical processing is with gripping processing unit (plant)
CN108296390A (en) * 2017-12-27 2018-07-20 合肥市硕理机电科技有限公司 A kind of strong bar cropper of stability
CN108356908A (en) * 2017-12-27 2018-08-03 佛山杰致信息科技有限公司 A kind of electronic component control panel perforating device
CN108526521A (en) * 2018-03-23 2018-09-14 湖州弘盛消防设备有限公司 A kind of fire fighting truck inner body drilling equipment
CN108927677A (en) * 2018-07-03 2018-12-04 柳州通亿汽车配件制造有限公司 A kind of machining fixture convenient for adjusting
CN108555351A (en) * 2018-07-19 2018-09-21 钟晓芳 A kind of chip preparation drilling equipment
CN108818050A (en) * 2018-07-25 2018-11-16 苏州谊佳润机电制造有限公司 A kind of process equipment of fixation efficiently automatic assembly line supporting leg
CN109168282A (en) * 2018-10-15 2019-01-08 合肥鸿坤通信工程有限公司 A kind of novel and multifunctional heat dissipation outdoor communication case apparatus
CN109202129A (en) * 2018-10-30 2019-01-15 安庆市睿霞机械有限公司 Drilling device is used in a kind of processing of chemical attachment
CN109648118A (en) * 2019-01-28 2019-04-19 合肥清若科技有限公司 A kind of easy to operate computer production plate drilling equipment
CN109702581A (en) * 2019-01-28 2019-05-03 合肥清若科技有限公司 Edging device is used in a kind of production of computer
CN109909522A (en) * 2019-03-27 2019-06-21 杭州初始服饰有限公司 A kind of aluminum alloy mould plate equipment
CN112317809A (en) * 2020-11-12 2021-02-05 长春一汽四环力达冲压制品有限公司 Automatic punching device for vehicle thermal forming floor beam
CN115069863A (en) * 2022-08-19 2022-09-20 诸城开元节能科技有限公司 Stamping tool for motor machining

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Application publication date: 20171027

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