WO2000025948A1 - Bras automatique motorise pour aspirer des emanations de soudage - Google Patents

Bras automatique motorise pour aspirer des emanations de soudage Download PDF

Info

Publication number
WO2000025948A1
WO2000025948A1 PCT/IT1999/000343 IT9900343W WO0025948A1 WO 2000025948 A1 WO2000025948 A1 WO 2000025948A1 IT 9900343 W IT9900343 W IT 9900343W WO 0025948 A1 WO0025948 A1 WO 0025948A1
Authority
WO
WIPO (PCT)
Prior art keywords
arm
aspirating
pipe
gear motor
hood
Prior art date
Application number
PCT/IT1999/000343
Other languages
English (en)
Inventor
Giuseppe Poggioni
Original Assignee
Giuseppe Poggioni
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 Giuseppe Poggioni filed Critical Giuseppe Poggioni
Priority to AU10758/00A priority Critical patent/AU1075800A/en
Publication of WO2000025948A1 publication Critical patent/WO2000025948A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/325—Devices for supplying or evacuating shielding gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool

Definitions

  • the present invention relates to an automatic motorised arm for aspirating fumes released by electric welding operations.
  • aspirating arms both set on dollies and fixed, are available on the market. They essentially comprise two movable pipes connected by means of flexible hose portions consecutively to each other and, at their other ends, to a fixed aspirator set and to an aspirating movable small hood.
  • the two pipes, and l o hence the aspirating small hood are movable according to a rotation in the extremity about the aspirating set, according to a ve ⁇ ical up and down motion and according to a horizontal opening and closing motion, i.e. approaching and moving away from the fixed aspirator set.
  • the latter two motions are also called declination motions.
  • the present invention therefore aims to overcome this drawback.
  • an automatic motorised arm for aspirating fumes released by electrical welding operations comprising a first pipe and a second pipe connected to each other by means of a flexible hose segment, by a union fitting for connecting the extremity of the first pipe with a fixed aspirator set and by a flexible portion for connecting the second pipe to an aspirating hood; the first and the second pipe, and hence the aspirating hood, being movable according to a horizontal rotation in the two directions at the extremity around the aspirator set, according to a compass-like opening and closing motion, i.e.
  • motorised arm which, from a general point of view, is characterised in that it comprises: a first pair of light sensors of the electric welding arc, located on said aspirating hood and connected to a first differential electronic circuit for commanding a first gear motor, situated in the extremity of the arm around the aspirator set, for said horizontal rotation of said arm in the two directions; a second pair of light sensors of the electric welding arc, located on said aspirating hood and connected to a second differential electronic circuit for commanding a second gear motor for said compass-like opening and closing movement, located on said arm; a third light sensor, with variable sensitivity, of the electric welding arc, located on said aspirating hood and connected to a comparator electronic circuit for commanding a third gear motor for said up and down motion, located on said arm; a circuit for supplying power to said sensors further comprising a relay for enabling the welding pushbutton
  • the motorised arm according to the present invention causes the hood continually to overlie the welding torch whilst the aspirator set aspirates the fumes, to shut itself off after a brief time interval following the end of the welding operation.
  • Figure 1 shows a schematic side view of a first embodiment of motorised arm according to the present invention
  • Figure 2 shows a schematic top plan view of the motorised arm of Figure 1;
  • Figure 3 shows a schematic front view of the motorised arm of Figure 1;
  • FIG. 4 shows a block diagram of the automated mechanism of the motorised arm according to the present invention
  • Figure 5 shows a first differential electronic circuit of the automated mechanism of Figure 4.
  • Figure 8 shows a power supply circuit of the automation of Figure 4.
  • FIG. 9 shows a schematic side view of a second embodiment of automated arm according to the present invention.
  • the automatic motorised arm indicated in its entirety with the number 10 comprises an aspirator set 11, a first pipe 12, a second pipe 13 and an aspirating hood 14.
  • the first pipe 12 is connected to the aspirator set 1 1 by means of a union fitting 15, the first pipe 12 is connected to the second pipe 13 by means of a flexible hose segment 16, whilst the second tube 13 is connected by means of a flexible portion 17 to the aspirating hood 14.
  • the fitting 15 connecting the first pipe 12 with the fixed aspirator set 11 comprises a rigid segment 26 pivotingly mounted on the aspirator set 11 whereto is associated a gear motor 18 for the motion of horizontal rotation in the two directions about the aspirator set 11 to follow the welding arc (not shown herein).
  • Tne union fitting 15 further comprises a flexible segment 27 whereto is associated a gear motor 19 for the actuation of the remaining part of the arm according to an up and down motion that displaces the hood 14 vertically with respect to the welding arc.
  • a gear motor 20 situated between the tube 12 and the tube 13 for the relative rotation according to a compass-like opening and closing motion, always to follow the welding arc.
  • a pair of photoelectric cells or light sensors 1, 2, positioned on the hood 14, is connected to a differential electronic circuit 21, to command the gear motor 18 for the horizontal rotatory motion in the two directions, i.e. right and left, of the motorised arm 10.
  • a pair of photoelectric cells or light sensors 3, 4, positioned on the hood 14, is connected to a differential electronic circuit 22, to command the gear motor 20 for the compass-like opening and closing motion of the motorised arm 10, for a lateral translation with respect to the aspirator set 11.
  • a photoelectric cell 5, also positioned on the hood 14, is connected to an electronic comparator circuit 23, to command the gear motor 19 for the vertical or up/down or raising lowering motion of the entire arm, i.e. to vary the distance of the hood from the welding arc. This distance is maintained constant at a value that can be adjusted through sensitivity adjusting means 28, 29, shown in Figure 7.
  • the position of the sensors is schematically shown in the figures as inside the hood 14 but it should be understood that it may be different, inside the hood or outside it, but, obviously, connected thereto.
  • FIG. 5 therein a diagram is shown of the differential electronic circuit 21 for commanding the motor 18.
  • Figure 6 shows a diagram of the differential electronic circuit 22 for commanding the motor 20
  • Figure 7 shows a diagram of the electronic comparator circuit 23 for commanding the motor 19.
  • the means 28 for adjusting sensitivity regulates the distance of the hood from the welding arc
  • means 29 regulates the intervention window.
  • Figure 8 shows a diagram of the circuit 24 for supplying power to the sensors 1, 2, 3, 4, 5 further comprising a relay for enabling the welding pushbutton indicated in 25.
  • the automatic motorised arm indicated in its entirety as 100 comprises an aspirator set 1 10, a first pipe 120, a second pipe 130 and an aspirating hood 140.
  • the first pipe 120 is connected to the aspirator set 110 by means of a union fitting 150, the first pipe 120 is connected to the second pipe 130 by means of a flexible hose 160, whilst the second pipe 130 is connected by means of a flexible portion 170 to the aspirating hood 140.
  • the connecting union fitting 150 of the first pipe 120 with the fixed aspirator set 110 comprises a Z-shaped rigid union fitting associated for the rotation to a gear motor 180 at one of its extremities and pivotingly connected at the other of its extremities to the first pipe 120 associated for the compass-like opening and closing motion to a gear motor 200.
  • a gear motor 190 for the up and down motion is located on the motorised arm in the flexible hose 160 between the first pipe 120 and the second pipe 130. Command over the gear motors is similar to the one shown in Figure 4, as are the related differential and comparator electronic circuit.
  • the gear motors 18; 180, 19; 190, 20; 200 are provided with a clutch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

L'invention concerne un bras automatique motorisé destiné à aspirer les émanations dégagées par des opérations de soudage électrique. Ce bras comprend un premier et un second conduits (12, 13) assemblés l'un à l'autre par un tuyau flexible (16), un raccord (15) étant par ailleurs conçu pour assembler le premier conduit (12) à un ensemble aspirant fixe (11) et à une hotte d'aspiration (14). Ce premier et ce second conduits (12, 13) peuvent se déplacer par un mouvement de rotation horizontal dans les deux sens, autour dudit ensemble aspirant (11), dans des positions d'ouverture et de fermeture. Ces conduits se déplacent également vers le haut et vers le bas par rapport à l'ensemble aspirant lui-même, à l'aide des capteurs de lumière (1, 2, 3, 4, 5) de l'arc de soudage électrique, lequel est placé sur ladite hotte d'aspiration (14, 140) et relié à des circuits électroniques associés destinés à commander les moteurs à engrenages (18, 19, 20) qui agissent sur lesdits conduits (12, 13).
PCT/IT1999/000343 1998-10-30 1999-10-26 Bras automatique motorise pour aspirer des emanations de soudage WO2000025948A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU10758/00A AU1075800A (en) 1998-10-30 1999-10-26 Automatic motorised arm for aspirating welding fumes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998PG000045 IT1306371B1 (it) 1998-10-30 1998-10-30 Automatismo per la movimentazione di un qualsiasi braccio aspiratoredi fumi da saldatura elettrica,guidato da sensori luminosi per
ITPG98A000045 1998-10-30

Publications (1)

Publication Number Publication Date
WO2000025948A1 true WO2000025948A1 (fr) 2000-05-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1999/000343 WO2000025948A1 (fr) 1998-10-30 1999-10-26 Bras automatique motorise pour aspirer des emanations de soudage

Country Status (3)

Country Link
AU (1) AU1075800A (fr)
IT (1) IT1306371B1 (fr)
WO (1) WO2000025948A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011006245A1 (fr) 2009-07-17 2011-01-20 Diversitech Equipment And Sales (1984) Ltd. Système d’extraction de fumée à positionnement automatique de hotte
CN102699004A (zh) * 2012-06-20 2012-10-03 德清县圆正粉末有限公司 一种粉尘回收装置
CN102873678A (zh) * 2012-09-25 2013-01-16 江苏科技大学 一种控制焊接烟尘进风口姿态和空间位移的装置及方法
CN103357640A (zh) * 2013-07-23 2013-10-23 上海西重所重型机械成套有限公司 用于生产车间空间除尘的可移动式除尘系统
CN103847036A (zh) * 2013-10-23 2014-06-11 洛阳市鼎晶电子材料有限公司 一种除尘系统
CN109048156A (zh) * 2018-09-29 2018-12-21 李建 一种多工位旋转焊接设备
CN109262167A (zh) * 2018-09-29 2019-01-25 李建 一种焊接烟气净化处理方法
US20190329740A1 (en) * 2014-07-31 2019-10-31 SZ DJI Technology Co., Ltd. Unmanned aerial vehicle base station system and method
CN110420507A (zh) * 2019-08-07 2019-11-08 三峡大学 一种可自动吸收烟雾的装置及使用方法
CN110743890A (zh) * 2019-12-03 2020-02-04 常州信息职业技术学院 悬臂点阵式扇形扫描废气吸入结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112092374B (zh) * 2020-08-31 2021-06-04 华东理工常熟研究院有限公司 一种3d打印机的上下料辅助装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546067A (en) * 1976-06-30 1979-05-16 Marshall D Apparatus for drawing off noxious gases and fumes
US4287405A (en) * 1979-10-02 1981-09-01 Mitsubishi Jukogyo Kabushiki Kaisha Process and apparatus for exhausting fumes produced by arc welding
JPS58154462A (ja) * 1982-03-09 1983-09-13 Amano Corp 溶接ヒユ−ムを集塵する方法および装置
US5036754A (en) * 1990-04-17 1991-08-06 Diversitech Equipment & Sales (1984) Ltd. Autotracking fume extraction exhaust hood
US5336130A (en) * 1993-03-04 1994-08-09 Metal-Fab, Inc. Adjustable exhauster arm assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546067A (en) * 1976-06-30 1979-05-16 Marshall D Apparatus for drawing off noxious gases and fumes
US4287405A (en) * 1979-10-02 1981-09-01 Mitsubishi Jukogyo Kabushiki Kaisha Process and apparatus for exhausting fumes produced by arc welding
JPS58154462A (ja) * 1982-03-09 1983-09-13 Amano Corp 溶接ヒユ−ムを集塵する方法および装置
US5036754A (en) * 1990-04-17 1991-08-06 Diversitech Equipment & Sales (1984) Ltd. Autotracking fume extraction exhaust hood
US5336130A (en) * 1993-03-04 1994-08-09 Metal-Fab, Inc. Adjustable exhauster arm assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 275 (M - 261) 8 December 1983 (1983-12-08) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2454031A4 (fr) * 2009-07-17 2014-08-20 Diversitech Equipment And Sales 1984 Ltd Système d extraction de fumée à positionnement automatique de hotte
EP2454031A1 (fr) * 2009-07-17 2012-05-23 Diversitech Equipment And Sales (1984) Ltd. Système d extraction de fumée à positionnement automatique de hotte
WO2011006245A1 (fr) 2009-07-17 2011-01-20 Diversitech Equipment And Sales (1984) Ltd. Système d’extraction de fumée à positionnement automatique de hotte
US8892222B2 (en) 2009-07-17 2014-11-18 Diversitech Equipment And Sales (1984) Ltd. Fume extraction system with automatic fume hood positioning
CN102699004A (zh) * 2012-06-20 2012-10-03 德清县圆正粉末有限公司 一种粉尘回收装置
CN102873678A (zh) * 2012-09-25 2013-01-16 江苏科技大学 一种控制焊接烟尘进风口姿态和空间位移的装置及方法
CN103357640A (zh) * 2013-07-23 2013-10-23 上海西重所重型机械成套有限公司 用于生产车间空间除尘的可移动式除尘系统
CN103847036A (zh) * 2013-10-23 2014-06-11 洛阳市鼎晶电子材料有限公司 一种除尘系统
US20190329740A1 (en) * 2014-07-31 2019-10-31 SZ DJI Technology Co., Ltd. Unmanned aerial vehicle base station system and method
US11708003B2 (en) * 2014-07-31 2023-07-25 SZ DJI Technology Co., Ltd. Unmanned aerial vehicle base station system and method
CN109048156A (zh) * 2018-09-29 2018-12-21 李建 一种多工位旋转焊接设备
CN109262167A (zh) * 2018-09-29 2019-01-25 李建 一种焊接烟气净化处理方法
CN110420507A (zh) * 2019-08-07 2019-11-08 三峡大学 一种可自动吸收烟雾的装置及使用方法
CN110420507B (zh) * 2019-08-07 2021-09-24 三峡大学 一种可自动吸收烟雾的装置及使用方法
CN110743890A (zh) * 2019-12-03 2020-02-04 常州信息职业技术学院 悬臂点阵式扇形扫描废气吸入结构

Also Published As

Publication number Publication date
IT1306371B1 (it) 2001-06-06
AU1075800A (en) 2000-05-22
ITPG980045A1 (it) 2000-04-30

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