GB2357255A - Grit blasting assembly - Google Patents

Grit blasting assembly Download PDF

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Publication number
GB2357255A
GB2357255A GB9920483A GB9920483A GB2357255A GB 2357255 A GB2357255 A GB 2357255A GB 9920483 A GB9920483 A GB 9920483A GB 9920483 A GB9920483 A GB 9920483A GB 2357255 A GB2357255 A GB 2357255A
Authority
GB
United Kingdom
Prior art keywords
nozzle
grit
end effector
piston
blast end
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.)
Withdrawn
Application number
GB9920483A
Other versions
GB9920483D0 (en
Inventor
David Harry Wilding
Melissa Pickering
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.)
INBIS Ltd
Original Assignee
INBIS 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 INBIS Ltd filed Critical INBIS Ltd
Priority to GB9920483A priority Critical patent/GB2357255A/en
Publication of GB9920483D0 publication Critical patent/GB9920483D0/en
Publication of GB2357255A publication Critical patent/GB2357255A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
    • B24C3/065—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable with suction means for the abrasive and the waste material

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

A grit blasting assembly comprises a nozzle 10, a pneumatic cylinder piston 22 and a bell crank 24 all connected to a support plate (20, Fig. 2) by respective pivots. The bell crank 24 is connected via a link member 26 to a nozzle holder 28 secured around the nozzle 10, it is also connected to the piston 22. A skirt (30, Fig. 2), shaped to allow grit and air supply tubes (16 and 18, Fig. 2) access to the nozzle 10, is fitted around the nozzle 10. The top of the skirt (30, Fig. 2) receives a tube (32, Fig. 2) connected to a vacuum pump to remove expelled grit. The support plate (20, Fig. 2) is mounted on a motor for moving the nozzle 10 in a direction perpendicular to the oscillating motion caused by the piston 22. The arrangement enables slots to be prepared for abrasive bonding.

Description

9 L 9 2357255 -1 GRIT BLAST END EFFECTOR The present invention relates to
a grit blast end effector.
There is an industrial requirement to grit blast slotted joints prior to bonding. However, the internal surfaces of narrow slots are difficult to prepare for adhesive bonding. Therefore the present invention seeks to provide improvements in the preparations for bonding slot joints.
According to the present invention there is provided a grit blast end effector comprising a grit blast nozzle, a support for the nozzle, and means for oscillating the nozzle about the support.
In a preferred embodiment of the invention the means for oscillating the nozzle comprises a piston. Preferably the piston is a pneumatic cylinder piston. Preferably the pneumatic cylinder piston is controlled by a plurality of solenoid valves.
Preferably the support for the nozzle comprises a support plate.
Preferably the piston is connected to the support plate by a pivot.
Preferably the nozzle is connected to the support plate by a pivot.
Preferably the piston is linked to the nozzle by a beil crank. Preferably the bell crank is pivoted to the support. When the piston is activated the bell crank is pushed back and forth which oscillates the nozzle.
Preferably grit is supplied to the nozzle from a hopper. Preferably the supply means comprises a tube.
Preferably air is supplied to the nozzle. Preferably the air supply is pressurised which causes the grit to be expelled from the nozzle.
Preferably the grit blast end effector comprises means to retrieve expelled grit from the grit blasted area. Preferably the retrieval means comprises a vacuum pump connected to the rig by a tube. Preferably a skirt is secured to the support plate which preferably surrounds the nozzle.
Preferably the nozzle is capable of being moved along a line perpendicular to the oscillatory motion of the nozzle. This is preferably achieved by a motor.
In order that the present invention be more readily understood a specific embodiment thereof will now be described with reference to the accompanying drawings in which; Figure 1 shows a diagrammatic arrangement of the piston, nozzle and connection meamand Figure 2 shows a perspective view of the nozzle, skirt and air and grit supply tubes.
Referring to the drawings a grit blast end effector comprises a nozzle 10. The grit blast end effector further comprises a hopper of grit 12 and an air supply 14. The nozzle 10 is connected to the hopper and air supply by two tubes 16, 18. Grit is fed into the nozzle from the hopper by the tube 16. Air supplied into the nozzle by tube 18 forces the grit to be expelled from the nozzle at high speed.
The nozzle 10 is connected to a support plate 20 by a pivot. A pneumatic cylinder piston 22 is also connected to the support plate 20 by a pivot. The piston 22 and nozzle 10 are pivoted to the support plate so as to be able to swing in the same plane. A bell crank 24 is fixed by a pivot to the support plate. The bell crank 24 is pivoted in the same plane as the piston 22 and nozzle 10. The end of the piston remote from the pivoted end is linked to the bell crank. The bell crank is also attached to a link member 26. The link member is connected to a nozzle holder 28. The nozzle holder 28 is secured around the nozzle. This arrangement is shown in figure 1.
A skirt 30 is fitted around the nozzle. The skir t is shaped to allow the air and grit supply tubes 16, 18 access to the nozzle 10. The top of the skirt 30 is adapted to receive a tube 32. The tube 32 is connected to a vacuum pump. When the vacuum pump is activated a suction effect is created in the space between the nozzle and the skirt.
The support plate is mounted onto a motor, which is capable of moving the grit blast nozzle forwards and backwards. The motion of the nozzle caused by the motor is perpendicular to the oscillating motion caused by the piston.
In use the nozzle is positioned at one end of the slot to be abraded.
Power is supplied to the solenoid valves which drive the piston. The motion of the piston causes the bell crank to oscillate about its fixed pivot.
The bell crank thus drives the link member backwards aA forwards in the horizontal plane. The grit blast nozzle is thus caused to oscillate about its fixed pivot by the link member.
Grit is fed from the hopper into the nozzle by tube 16. Air is also supplied into the nozzle under pressure. This action forces the grit to be expelled from the nozzle at high speed and hence abrades the inside of the slot. The motor is activated which causes the nozzle to move along the length of the slot. The nozzle oscillates back and forth while moving along the length of the slot, and thus the nozzle describes a reciprocating path.
The vacuum pump is activated and causes a suction effect in the space between the nozzle and the skirt. This effect retrieves expelled grit from the abraded slot.
The grit blast end effector is not limited to preparing slots, but is also capable of preparing wide paths.
It is to be understood that the above described specific embodiment is by way of example only and that many modifications and variations are possible within the scope of the invention.
-5

Claims (16)

1 A grit blast end effector comprising a grit blast nozzle, a support for the nozzle, and means for oscillating the nozzle about the support.
2. A grip blast end effector as claimed in claim 1, in which the means for oscillating comprises a piston.
3. A grit blast end effector as claimed in claim 2, in which the piston forms part of a piston and cylinder device.
4. A grit blast end effector as claimed in claim 3, in which the piston and cylinder device is pneumatic.
5. A grit blast end effector as claimed in claim 4, in which the piston and cylinder device is controlled by a plurality of solenoid valves.
6. A grit blast end effector as claimed in any preceding claim, in which the support for the nozzle comprises a support plate.
7. A grit blast end effector as claimed in claim 6, when appendant directly or indirectly to claim 2, in which the piston is connected to the support plate by a pivot.
8. A grit blast end effector as claimed in claim 6, in which the nozzle is connected to the support plate by a pivot.
9. A grit blast end effector as claimed in claim 2, or in any of claims 3 to 8 when appendant directly or indirectly to claim 2, in which the piston is linked to the nozzle by a bell crank.
10. A grit blast end effector as claimed in claim 9, in which the bell crank is pivotally connected to the support.
11. A grit blast end effector as claimed in any preceding claim, in which means comprising a hopper is provided for supplying grit to the nozzle.
12. A grit blast end effector as claimed in any preceding claim, in which means are provided for supplying air to the nozzle operative to expel grit supplied to the nozzle from the nozzle.
13. A grit blast end effector as claimed in any preceding claim, in which means are provided for retrieving grit from a grit blasted area.
14. A grit blast end effector as claimed in any preceding claim, in which the means for retrieving comprises a vacuum pump.
15. A grit blast end effector as claimed in any preceding claim, in which means are provided for moving the nozzle along a line transverse to the direction of oscillation.
16. A grit blast end effector substantially as hereinbefore described with reference to the accompanying drawings.
GB9920483A 1999-09-01 1999-09-01 Grit blasting assembly Withdrawn GB2357255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9920483A GB2357255A (en) 1999-09-01 1999-09-01 Grit blasting assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9920483A GB2357255A (en) 1999-09-01 1999-09-01 Grit blasting assembly

Publications (2)

Publication Number Publication Date
GB9920483D0 GB9920483D0 (en) 1999-11-03
GB2357255A true GB2357255A (en) 2001-06-20

Family

ID=10860034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9920483A Withdrawn GB2357255A (en) 1999-09-01 1999-09-01 Grit blasting assembly

Country Status (1)

Country Link
GB (1) GB2357255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445424A (en) * 2007-01-06 2008-07-09 Preptec Solutions Ltd Surface cleaning apparatus and method
EP3231557A1 (en) * 2016-04-12 2017-10-18 General Electric Company Apparatus and method for peening of machine components

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408419A (en) * 1980-12-03 1983-10-11 Appling Tom J Apparatus and method for sandblasting flanged beams
EP0230165A1 (en) * 1985-11-29 1987-07-29 AEROSPATIALE Société Nationale Industrielle Automatic shot-peening system for surface pre-stressing
US4905426A (en) * 1988-05-13 1990-03-06 David Robinson Mobile sandblasting apparatus
SU1682152A1 (en) * 1988-02-18 1991-10-07 Мурманский Судоремонтный Завод Мурманского Морского Пароходства Head for abrasive jet cleaning of surfaces
GB2306903A (en) * 1995-10-20 1997-05-14 Localfast Ltd Cleaning apparatus
US5695389A (en) * 1996-01-11 1997-12-09 Inventive Machine Corporation Blasting device with oscillating nozzle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408419A (en) * 1980-12-03 1983-10-11 Appling Tom J Apparatus and method for sandblasting flanged beams
EP0230165A1 (en) * 1985-11-29 1987-07-29 AEROSPATIALE Société Nationale Industrielle Automatic shot-peening system for surface pre-stressing
SU1682152A1 (en) * 1988-02-18 1991-10-07 Мурманский Судоремонтный Завод Мурманского Морского Пароходства Head for abrasive jet cleaning of surfaces
US4905426A (en) * 1988-05-13 1990-03-06 David Robinson Mobile sandblasting apparatus
GB2306903A (en) * 1995-10-20 1997-05-14 Localfast Ltd Cleaning apparatus
US5695389A (en) * 1996-01-11 1997-12-09 Inventive Machine Corporation Blasting device with oscillating nozzle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445424A (en) * 2007-01-06 2008-07-09 Preptec Solutions Ltd Surface cleaning apparatus and method
GB2445424B (en) * 2007-01-06 2009-06-03 Preptec Solutions Ltd Surface cleaning apparatus and method
EP3231557A1 (en) * 2016-04-12 2017-10-18 General Electric Company Apparatus and method for peening of machine components
CN107443259A (en) * 2016-04-12 2017-12-08 通用电气公司 Apparatus and method for the shot-peening of mechanical component
US10493594B2 (en) 2016-04-12 2019-12-03 General Electric Company Apparatus and method for peening of machine components
US11524387B2 (en) 2016-04-12 2022-12-13 General Electric Company Apparatus and method for peening of machine components

Also Published As

Publication number Publication date
GB9920483D0 (en) 1999-11-03

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)