CN104354017A - Circumferential drilling hole positioning device for round workpiece - Google Patents

Circumferential drilling hole positioning device for round workpiece Download PDF

Info

Publication number
CN104354017A
CN104354017A CN201410617429.5A CN201410617429A CN104354017A CN 104354017 A CN104354017 A CN 104354017A CN 201410617429 A CN201410617429 A CN 201410617429A CN 104354017 A CN104354017 A CN 104354017A
Authority
CN
China
Prior art keywords
rotating disk
positioning device
round piece
hole positioning
bearing
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
CN201410617429.5A
Other languages
Chinese (zh)
Inventor
叶华辉
陈洪根
王国文
黄庆
曾祥泉
刘俊良
胡桂英
黄小山
熊晨光
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.)
Xinyu Iron and Steel Co Ltd
Original Assignee
Xinyu Iron and Steel 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 Xinyu Iron and Steel Co Ltd filed Critical Xinyu Iron and Steel Co Ltd
Priority to CN201410617429.5A priority Critical patent/CN104354017A/en
Publication of CN104354017A publication Critical patent/CN104354017A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • B23Q16/04Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
    • B23Q16/06Rotary indexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention discloses a circumferential drilling hole positioning device for a round workpiece. The circumferential drilling hole positioning device comprises a bottom plate, a positioning mechanism, a turntable, a bearing, a pressing mechanism and a support ring, wherein the bearing is arranged in a round groove of the bottom plate in a clamping way, the turntable is annularly clamped and arranged in the bearing, the pressing mechanism is arranged on the turntable, the support ring is arranged under the turntable, the positioning mechanism is arranged on the bottom plate, and the front end of a positioning rod of the positioning mechanism is in butt joint with equant V-shaped notches formed in the outer edge of the turntable. The circumferential drilling hole positioning device has the advantages that a drilling hole can be positioned through directly selecting the V-shaped notch corresponding to a bisectrix marked on the turntable, the line drawing or template manufacturing is not needed, the work efficiency is high, the processing cost is reduced, the universality is good, and the product processing precision is high.

Description

A kind of round piece circumference drilling-hole positioning device
Technical field
The present invention relates to machine components drilling aid, particularly a kind of round piece circumference drilling-hole positioning device.
Background technology
After the halving hole of round piece circle distribution processes the steel plate making template usually adopting line or adopt 15mm ~ 20mm thick, by line or cover template location drilling.Line location drilling is that each size workpiece all will be rule location, and efficiency is low, and this line location drilling halving precision is not high.Cover template location drilling is that a kind of template can only corresponding a kind of size workpiece, and versatility is bad, and the workpiece of different size all will make template, adds round piece Drilling operation cost of manufacture and workload.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existence, technical problem to be solved is to provide a kind of round piece circumference drilling-hole positioning device, application drilling-hole positioning device can replace traditional line location drilling or template bore process, and halving precision of holing is high, versatility is good, easy to operate, working (machining) efficiency is high.
The present invention takes following technical scheme, a kind of round piece circumference drilling-hole positioning device, comprise base plate, detent mechanism, rotating disk, bearing, hold-down mechanism, support ring, it is characterized in that, in the circular groove of base plate, clamp bearing, clamp rotating disk at bearing inner ring, rotating disk arranges hold-down mechanism, under rotating disk, support ring is set; Detent mechanism is arranged on base plate, and the front end of its backstay is docked with the V-notch of rotating disk outer rim decile.
Described detent mechanism is made up of positioning seat, backstay, spring and draw ring, and the front end of backstay is V-arrangement cone angle, and rear end arranges draw ring, and after the boss of stage casing, winding spring is installed in positioning seat cavity.
Described hold-down mechanism is made up of pressing plate, screw rod, nut, and screw rod bottom is fixed on rotating disk, and top is installed pressing plate nut and fixed.
The V-notch of described rotating disk outer rim decile is corresponding with the bisector that rotating disk identifies.
Described V-notch is isosceles triangle.
Round piece placed by rotating disk of the present invention, compresses with hold-down mechanism, base plate is fixed on the fixture of drilling machine, according to boring number, select the corresponding V-notch of bisector that rotating disk identifies, block with the V-arrangement cone angle of backstay front end on detent mechanism, can bore operation be implemented.
Advantage of the present invention is that structure is simple, easy to operate, according to boring number, directly selects the corresponding V-notch of bisector that rotating disk identifies, just can location drilling, without the need to line or make template, operating efficiency is high, reduce processing charges, versatility is good, and processing precision of products is high.
Accompanying drawing explanation
Fig. 1 is the Internal hole positioning structural front view of Drilling operation band endoporus round piece of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the excircle orientation structural front view of Drilling operation of the present invention without endoporus round piece.
Fig. 4 is the top view of Fig. 3.
In figure: 1, base plate, 2, detent mechanism, 201, backstay, 202, positioning seat, 203, spring, 204, draw ring, 3, rotating disk, 4, bearing, 5, workpiece, 6, support ring, 7, hold-down mechanism, 701 pressing plates, 702, screw rod, 703, support set, 8, locating ring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, see Fig. 1 to Fig. 4, a kind of round piece circumference drilling-hole positioning device, comprise base plate 1, detent mechanism 2, rotating disk 3, bearing 4, hold-down mechanism 7, support ring 6, is characterized in that, bearing 4 is clamped in the circular groove of base plate 1, clamp rotating disk 3 in bearing 4 inner ring, rotating disk 3 arranges hold-down mechanism 7, rotating disk arranges support ring 63 times; Detent mechanism 2 is arranged on base plate 1, and the front end of its backstay 201 is docked with the V-notch of rotating disk 3 outer rim decile.Described detent mechanism 2 is made up of positioning seat 202, backstay 201, spring 203 and draw ring 204, and the front end of backstay 201 is V-arrangement cone angle, and rear end arranges draw ring 204, and after the boss of stage casing, winding spring 203 is installed in positioning seat 202 cavity.Described hold-down mechanism 7 is made up of pressing plate 701, screw rod 702, nut, and screw rod 702 bottom is fixed on rotating disk 3, and top is installed pressing plate 701 and fixed with nut.The V-notch of described rotating disk 3 outer rim decile is corresponding with the bisector that rotating disk 3 identifies.Described V-notch is isosceles triangle.
embodiment:round piece is divided into band endoporus round piece and without endoporus round piece two class usually.The present invention is applied to band endoporus round piece such as a ring flange Drilling operation and locates as shown in Figure 1 and Figure 2; The present invention is applied to one without endoporus round piece as pipeline end cover Drilling operation is located as shown in Figure 3, Figure 4.As shown in Figures 1 to 4, base plate 1 adopts 30mm ~ 40mm steel plate, according to bearing 4 outside dimension and thickness, mill out a circular groove in the middle of the steel plate, be installed in the circular groove of base plate 1 by 2/3rds of bearing 4 external diameter, due to tight fit, can not produce relative rotation.Centre position, rotating disk 3 top and bottom is designed with round boss, and the external diameter of rotating disk 3 lower convex platform matches with bearing 4 inner ring, makes rotating disk 3 be installed in bearing 4 inner ring, due to tight fit, can not produce relative rotation.Rotating disk 3 realizes and bearing 4 inner ring synchronous axial system.Rotating disk 3 convex platform is for placement round piece 5, multistage boss can be designed according to conventional workpiece size, when workpiece 5 is the round piece of band endoporus, then direct by workpiece 5 inner hole sleeve on rotating disk 3 on certain grade of boss, matched in clearance, keep with one heart (referring to Fig. 1), if workpiece 5 endoporus and rotating disk 3 convex platform external diameter inconsistent, according to gap length, a plane positioning ring 8 is installed additional at convex platform, as transition, workpiece 5 endoporus to be coordinated with convex platform by plane positioning ring 8 and installs, keep with one heart; When the round piece that workpiece 5 is without endoporus, then first the locating ring 8 of band seam is clamped and be fixed on rotating disk 3 convex platform, then round piece 5 lower end is placed on the cooperation of locating ring 8 internal clearance, keep with one heart (referring to Fig. 3).Locating ring 8 with seam makes according to the outside diameter of round piece 5 lower end.The card of rotating disk 3 is designed with the bisector to outer rim from the center of circle, and at the terminal of bisector, design v-notch, v-notch is isosceles triangle, to ensure positioning precision.In order to compress round piece 5, type according to round piece 5 arranges one or two hold-down mechanism 7 on rotating disk 3, hold-down mechanism 7 is made up of pressing plate 701, screw rod 702, nut, screw rod 702 lower part helical or be fixedly welded on rotating disk 3, pressing plate 701 is drilled with through hole, the top of screw rod 702 can be sleeved on, be placed on after on rotating disk 3 until round piece 5, with nut fixation clip 701, compress round piece 5.For band endoporus round piece, only a hold-down mechanism 7 need be set at the center of rotating disk 3, bore operation requirement can be met; For without endoporus round piece, then two hold-down mechanisms 7 need be set the appropriate location on rotating disk 3, and on screw rod 702, install a support set 703 additional, round piece 5 could be compressed, meet bore operation requirement.At rotating disk, 3 times support ring 6 is set, bore operation is stablized.Detent mechanism 2 is fixed by bolts on base plate 1, detent mechanism 2 is made up of positioning seat 202, backstay 201, spring 203 and draw ring 204, positioning seat 202 is cavitys, both sides are provided with through hole, the front end of backstay 201 is V-arrangement cone angle, and rear end arranges draw ring 204, and stage casing is provided with boss, after boss, winding spring 203 is installed in the cavity of positioning seat 202, the front end of backstay 201 and the V-notch butt junction location of rotating disk 3 outer rim decile.Catch hold of the draw ring 204 on backstay 201, draw outward, pulling force overcomes the resistance of spring 203, make the V-arrangement cone angle of backstay 201 front end depart from the V-notch of rotating disk 3 outer rim decile, rotate rotating disk 3, unclamp draw ring 204, backstay 201 is under the elastic force effect of spring 203, the V-arrangement cone angle of front end blocks the V-notch of rotating disk 3 outer rim decile again, location, i.e. convertible bore position.
The present invention is equipped with plane or the band seam locating ring 8 of corresponding size, just can bore the different size round piece 5 of conventional various halving hole, solve versatility problem.Point breach such as shown in Figure 2, Figure 4 shows, rotating disk 3 identifies 24 deciles, 24 corresponding rotating disk 3 outer rims of bisector, 24 V-arrangements.For point 3 holes, 4 holes, 6 holes, 8 holes, 12 holes such as common round pieces, mark 3,4,6,8,12 on point angular bisectors such as correspondence, to search, accurately locates.Such as: the workpiece 5 of Drilling operation is outside diameter 160mm, and diameter of bore 100mm, circumferentially bores the halving hole of 6 Φ 10mm at diameter 130mm.Pull-out backstay 201, rotate rotating disk 3, being positioned on rotating disk 3 by the V-arrangement cone angle of backstay 201 front end is labeled as in the V-notch of 6, when unclamping, backstay 201 is stuck in the V-notch of rotating disk 3 decile at the V-arrangement cone angle of the effect lower front end of spring 203, start to bore first hole, after completing, repeat aforesaid operations, rotating rotating disk 5 times can at the halving hole circumferentially getting out 6 Φ 10mm of diameter 130mm.

Claims (5)

1. a round piece circumference drilling-hole positioning device, comprises base plate, detent mechanism, rotating disk, bearing, hold-down mechanism, support ring, it is characterized in that, in the circular groove of base plate, clamp bearing, clamp rotating disk at bearing inner ring, rotating disk arranges hold-down mechanism, under rotating disk, support ring is set; Detent mechanism is arranged on base plate, and the front end of its backstay is docked with the V-notch of rotating disk outer rim decile.
2. round piece circumference drilling-hole positioning device according to claim 1, it is characterized in that, described detent mechanism is made up of positioning seat, backstay, spring and draw ring, and the front end of backstay is V-arrangement cone angle, rear end arranges draw ring, and after the boss of stage casing, winding spring is installed in positioning seat cavity.
3. round piece circumference drilling-hole positioning device according to claim 1, it is characterized in that, described hold-down mechanism is made up of pressing plate, screw rod, nut, and screw rod bottom is fixed on rotating disk, and top is installed pressing plate nut and fixed.
4. round piece circumference drilling-hole positioning device according to claim 1, is characterized in that, the V-notch of described rotating disk outer rim decile is corresponding with the bisector that rotating disk identifies.
5. the round piece circumference drilling-hole positioning device according to claim 1 or 4, is characterized in that, described V-notch is isosceles triangle.
CN201410617429.5A 2014-11-06 2014-11-06 Circumferential drilling hole positioning device for round workpiece Pending CN104354017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410617429.5A CN104354017A (en) 2014-11-06 2014-11-06 Circumferential drilling hole positioning device for round workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410617429.5A CN104354017A (en) 2014-11-06 2014-11-06 Circumferential drilling hole positioning device for round workpiece

Publications (1)

Publication Number Publication Date
CN104354017A true CN104354017A (en) 2015-02-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN104354017A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105171047A (en) * 2015-08-21 2015-12-23 如皋市大生线路器材有限公司 Hole-drilling system for double clamp
CN106040891A (en) * 2016-06-30 2016-10-26 浙江乐仁精密工业有限公司 Fixing technology for round part deep-stretching tool
CN106514337A (en) * 2016-11-30 2017-03-22 无锡凯涵科技有限公司 Clamp for motor end cover
CN106541286A (en) * 2016-11-30 2017-03-29 无锡凯涵科技有限公司 The frock clamp of electric motor end cap
CN106695347A (en) * 2017-03-28 2017-05-24 四川省川磨岷机联合数控机器股份有限公司 Machine tool electric appliance operation station
CN106964938A (en) * 2017-04-29 2017-07-21 徐松良 A kind of turbine runner blade welding tooling
CN108044372A (en) * 2017-12-13 2018-05-18 单杰 Plate perforating mechanism, intelligent clamping device and application method
CN108466084A (en) * 2018-06-29 2018-08-31 胡张容 A kind of work piece holder radiator
CN108568683A (en) * 2018-06-29 2018-09-25 胡张容 A kind of machine tool chuck
CN108580953A (en) * 2018-06-15 2018-09-28 安徽省灵磁新材料科技股份有限公司 A kind of efficient positioning tool for magnet steel drilling
CN108723437A (en) * 2018-07-27 2018-11-02 国网河北省电力有限公司石家庄供电分公司 A kind of perforating assistor and its application method for electric armour clamp
CN108788823A (en) * 2018-06-29 2018-11-13 胡张容 A kind of Machinetool workpiece holder
CN108788822A (en) * 2018-06-29 2018-11-13 胡张容 A kind of rapid cooling jig
CN108818014A (en) * 2018-06-29 2018-11-16 胡张容 One kind screwing split-type machine tool chuck
CN108907778A (en) * 2018-08-29 2018-11-30 爱威机电(南京)有限公司 A kind of positioning unit in clamping tool when drilling on circular seat outer circle wall
CN108907777A (en) * 2018-08-29 2018-11-30 爱威机电(南京)有限公司 A kind of clamping tool when drilling on circular seat outer circle wall
CN111588440A (en) * 2020-06-01 2020-08-28 王春晖 Auxiliary positioning frame for orthopedic drilling aiming
CN113601209A (en) * 2021-07-23 2021-11-05 保定向阳航空精密机械有限公司 Multi-station rotating disc type precise flat tongs
CN113634976A (en) * 2021-10-17 2021-11-12 南通宝雪冷冻设备有限公司 Spiral sprocket piece assembly device for quick-freezer
CN113770616A (en) * 2021-11-10 2021-12-10 科堡科技(江苏)有限公司 Welding device for assembling intelligent electric heating towel rack

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CN203077011U (en) * 2013-03-01 2013-07-24 寿光市泰丰制动系统科技有限公司 Novel brake shoe drilling clamp
CN203650014U (en) * 2013-12-14 2014-06-18 柳州市国顺机械制造有限公司 Drilling jig for turbine assembly
CN103894645A (en) * 2014-04-09 2014-07-02 梁满伦 Batch machining device and machining technology for multiple holes uniformly formed in circumferences
CN203779228U (en) * 2013-12-10 2014-08-20 苏州市职业大学 Indexing mechanism
CN203887257U (en) * 2014-06-03 2014-10-22 宁波市镇海米丰节能环保科技有限公司 Indexing drilling device
CN204195285U (en) * 2014-11-06 2015-03-11 新余钢铁集团有限公司 A kind of round piece circumference drilling-hole positioning device

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CN200963759Y (en) * 2006-09-13 2007-10-24 重庆宗申技术开发研究有限公司 Fixture for processing circumference distribution holes
CN101372082A (en) * 2007-08-23 2009-02-25 洛阳轴研科技股份有限公司 Mold special for processing bearing retainer pocket
CN201960356U (en) * 2010-12-28 2011-09-07 苏州市职业大学 Machine tool fixture
KR101209382B1 (en) * 2011-07-07 2012-12-06 김영종 Drilling index device for valve and flange
CN202336731U (en) * 2011-10-21 2012-07-18 河南森茂机械有限公司 Jig for drilling holes on excircle
CN203077011U (en) * 2013-03-01 2013-07-24 寿光市泰丰制动系统科技有限公司 Novel brake shoe drilling clamp
CN203779228U (en) * 2013-12-10 2014-08-20 苏州市职业大学 Indexing mechanism
CN203650014U (en) * 2013-12-14 2014-06-18 柳州市国顺机械制造有限公司 Drilling jig for turbine assembly
CN103894645A (en) * 2014-04-09 2014-07-02 梁满伦 Batch machining device and machining technology for multiple holes uniformly formed in circumferences
CN203887257U (en) * 2014-06-03 2014-10-22 宁波市镇海米丰节能环保科技有限公司 Indexing drilling device
CN204195285U (en) * 2014-11-06 2015-03-11 新余钢铁集团有限公司 A kind of round piece circumference drilling-hole positioning device

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105171047A (en) * 2015-08-21 2015-12-23 如皋市大生线路器材有限公司 Hole-drilling system for double clamp
CN106040891A (en) * 2016-06-30 2016-10-26 浙江乐仁精密工业有限公司 Fixing technology for round part deep-stretching tool
CN106040891B (en) * 2016-06-30 2018-05-11 浙江乐仁精密工业有限公司 A kind of circular pieces deep drawn frock technique for fixing
CN106514337A (en) * 2016-11-30 2017-03-22 无锡凯涵科技有限公司 Clamp for motor end cover
CN106541286A (en) * 2016-11-30 2017-03-29 无锡凯涵科技有限公司 The frock clamp of electric motor end cap
CN106514337B (en) * 2016-11-30 2018-11-20 无锡凯涵科技有限公司 Fixture for electric motor end cap
CN106695347A (en) * 2017-03-28 2017-05-24 四川省川磨岷机联合数控机器股份有限公司 Machine tool electric appliance operation station
CN106695347B (en) * 2017-03-28 2019-04-16 四川省川磨岷机联合数控机器股份有限公司 Machine Tool Electric Appliance active station
CN106964938A (en) * 2017-04-29 2017-07-21 徐松良 A kind of turbine runner blade welding tooling
CN108044372B (en) * 2017-12-13 2018-11-13 佛山联邦高登家私有限公司 Plate perforating mechanism, intelligent clamping device and application method
CN108044372A (en) * 2017-12-13 2018-05-18 单杰 Plate perforating mechanism, intelligent clamping device and application method
CN108580953A (en) * 2018-06-15 2018-09-28 安徽省灵磁新材料科技股份有限公司 A kind of efficient positioning tool for magnet steel drilling
CN108788822A (en) * 2018-06-29 2018-11-13 胡张容 A kind of rapid cooling jig
CN108466084A (en) * 2018-06-29 2018-08-31 胡张容 A kind of work piece holder radiator
CN108788823A (en) * 2018-06-29 2018-11-13 胡张容 A kind of Machinetool workpiece holder
CN108818014A (en) * 2018-06-29 2018-11-16 胡张容 One kind screwing split-type machine tool chuck
CN108568683A (en) * 2018-06-29 2018-09-25 胡张容 A kind of machine tool chuck
CN108723437A (en) * 2018-07-27 2018-11-02 国网河北省电力有限公司石家庄供电分公司 A kind of perforating assistor and its application method for electric armour clamp
CN108723437B (en) * 2018-07-27 2024-05-14 国网河北省电力有限公司石家庄供电分公司 Punching auxiliary device for electric power fitting and using method thereof
CN108907778A (en) * 2018-08-29 2018-11-30 爱威机电(南京)有限公司 A kind of positioning unit in clamping tool when drilling on circular seat outer circle wall
CN108907777A (en) * 2018-08-29 2018-11-30 爱威机电(南京)有限公司 A kind of clamping tool when drilling on circular seat outer circle wall
CN111588440A (en) * 2020-06-01 2020-08-28 王春晖 Auxiliary positioning frame for orthopedic drilling aiming
CN111588440B (en) * 2020-06-01 2024-01-26 李雯雯 Orthopedics drilling aims auxiliary positioning frame
CN113601209A (en) * 2021-07-23 2021-11-05 保定向阳航空精密机械有限公司 Multi-station rotating disc type precise flat tongs
CN113601209B (en) * 2021-07-23 2022-11-01 保定向阳航空精密机械有限公司 Multi-station rotating disc type precise flat tongs
CN113634976A (en) * 2021-10-17 2021-11-12 南通宝雪冷冻设备有限公司 Spiral sprocket piece assembly device for quick-freezer
CN113770616A (en) * 2021-11-10 2021-12-10 科堡科技(江苏)有限公司 Welding device for assembling intelligent electric heating towel rack
CN113770616B (en) * 2021-11-10 2022-01-18 科堡科技(江苏)有限公司 Welding device for assembling intelligent electric heating towel rack

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Application publication date: 20150218