EP0753382B1 - Device for the precision cleaning and/or deburring of orifices in machined parts - Google Patents
Device for the precision cleaning and/or deburring of orifices in machined parts Download PDFInfo
- Publication number
- EP0753382B1 EP0753382B1 EP19960500095 EP96500095A EP0753382B1 EP 0753382 B1 EP0753382 B1 EP 0753382B1 EP 19960500095 EP19960500095 EP 19960500095 EP 96500095 A EP96500095 A EP 96500095A EP 0753382 B1 EP0753382 B1 EP 0753382B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- machine
- fitted
- supporting
- deburring
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/083—Deburring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Definitions
- This invention refers to a cleaning machine for machined parts with a device for the precision cleaning and/or deburring of orifices in machined parts, fitted in the cleaning chambers of the cleaning and/or deburring stations of the cleaning machine for machined parts.
- Machined parts for kinematic and dynamic systems are fitted with orifices and ducts for channelling and receiving lubricating or cooling fluids.
- Machined parts likewise feature a number of blind, threaded orifices designed to take threaded fasteners.
- EP-A-0 659 523 discloses a deburring device comprising means of supporting and spinning the part to be cleaned, arranged inside the cleaning chamber; and cleaning equipment, essentially arranged outside the cleaning chamber and fitted with nozzles for directing the cleaning liquid, these being inserted into the cleaning chamber by supporting lances passing through an opening in the chamber's upper face, in such a way that the nozzles move into position close to and facing the orifices that need to be cleaned in the part, this cleaning equipment being supported by a carriage that is external to the cleaning chamber and provided with a horizontal, shifting movement running transversely with respect to the feed direction of the feeder unit.
- the aim of this invention is to solve the drawbacks mentioned above, and further to improve performances yielded by the deburring device of EP-A-0 659 523, providing a device for the precision cleaning and/or deburring of orifices in machined parts, one giving suitable movement and positioning relative to each other of the cleaning or abrasive liquid jet and the part to be cleaned, in order to obtain better results in the cleaning process.
- the device of this invention is characterized by the combination of features according to claim 1.
- the carriage supporting the cleaning equipment may comprise a frame supporting a driving member, such as a hydraulic or pneumatic cylinder; a vertical arm, carrying the lances that hold the nozzles, that can travel vertically when the driving member is operated; guide bearings for said vertical arm; and a nut, operating in conjunction with a horizontal leadscrew, fitted on the frame of the cleaning machine and driven by a second numerical-control motor, the latter also being fitted on the frame of the cleaning machine.
- a driving member such as a hydraulic or pneumatic cylinder
- a vertical arm carrying the lances that hold the nozzles, that can travel vertically when the driving member is operated
- guide bearings for said vertical arm and a nut, operating in conjunction with a horizontal leadscrew, fitted on the frame of the cleaning machine and driven by a second numerical-control motor, the latter also being fitted on the frame of the cleaning machine.
- the means of closing the opening in the upper face of the cleaning chamber may consist of horizontal plates arranged to form a labyrinth.
- Fig. 1 shows a part 1 to be cleaned and/or deburred - in this case an engine crankshaft - in which the orifices 2 to be cleaned are shown.
- the part 1 can be moved by a feeder unit 3, e.g. of the stepped-pitch type, fitted, by way of example, with a conveying bar that can move upwards, forwards, downwards and backwards.
- Fig. 1 shows the part 1 in its position as removed from the feeder unit 3 and set in the means for supporting and spinning it. These means are fitted, to one side of the part 1, with a set of grippers 4 that close on the part 1 in order to move it along, and a centring device 5 which penetrates inside a suitable zone of the part 1.
- the set of grippers 4 and the centring device 5 are driven by an actuating cylinder 6, preferably hydraulic though it could also be pneumatic or electric, arranged in such a way that it can make the centring device 6 move onwards - in the directions shown by the arrows A - and the grippers 5 close on the part 1 - with the movements shown by the arrows D - gripping it, a function that can be arranged, for example, by a mechanical device involving a lever or rack-and-pinion system.
- the set of grippers 4, the centring device 5 and the cylinder 6 are joined to a support 7, and spin together around at least one bearing 8, the base of which is joined to the cleaning machine.
- the support 7 is joined to a crown wheel 9 driven by a numerical-control motor 10 through a pinion 11 and a transmission belt 12.
- the means for supporting and spinning the part are equipped with another supporting device whose function is to support the part at its other end.
- a tailstock 13 driven in its movement by the part of the means of supporting and spinning the parts fitted on the first side described, and spinning freely on a bearing 14 held by a support 15 attached to the cleaning machine.
- Fig. 2 shows in diagrammatic form the cleaning equipment and the means of closing that are to be used in conjunction with the mechanisms shown in Fig. 1, as explained hereabove.
- the cleaning equipment is provided with a nozzle 17, arranged to create the flow of cleaning material, plus at least one supporting lance 18, joined to the nozzle 17 and fitted on a support 19 joined to an arm 20.
- This arm 20 can be raised or lowered, driven by a cylinder 21, in the directions shown by the arrows B, in order to move the lances 18 away from the part 1 to be cleaned when that part is required to move on conveyed by the stepped-pitch feed device.
- the arm 20 can slide along guide bearings 23 fitted on a frame 22 which can move transversely, as shown by the arrows C, with respect to the feed direction of the leadscrew, in a direction that is parallel to the axis of rotation of the part 1 and perpendicular to the direction of the sliding movement of the arm 20.
- This transverse movement is preferably transmitted through a leadscrew 27 driven by a second numerical-control motor 24.
- a rack-and-pinion system could be used for that transmission instead of the leadscrew 27.
- Most of the unit formed by parts 21, 22, 23, 24, 26 and 27 is preferably located outside the cleaning chamber of the cleaning machine and is isolated from the outside by a means of closing, comprising a group of closing plates 25 forming a labyrinth.
- the device works as follows: firstly, the part 1 is brought by the feed device 3, to which it is attached by known means, to the right position near the means of supporting and spinning; next, the latter clamp the part at both ends; then the stepped-pitch feed device 3 releases and moves away from the part 1, which is left ready to spin around through the agency of parts 6 to 11; afterwards, part 1 is spun to the required angle; then the nozzles 17 of the cleaning equipment are brought, through the action of the cylinder 21 and the motor 24 to the required position with respect to the part 1; at this stage the cleaning and/or deburring operation can be commenced by the ejection of a jet of cleaning material through the nozzle 17 against the part 1.
Description
- This invention refers to a cleaning machine for machined parts with a device for the precision cleaning and/or deburring of orifices in machined parts, fitted in the cleaning chambers of the cleaning and/or deburring stations of the cleaning machine for machined parts.
- At present, many machined parts for kinematic and dynamic systems are fitted with orifices and ducts for channelling and receiving lubricating or cooling fluids. Machined parts likewise feature a number of blind, threaded orifices designed to take threaded fasteners.
- After cold machining, hot working and chemical and/or mechanical treatment, these machined parts usually come out dirty, on account of the presence of residual products such as cutting oils, remains left on the part after drawing or descaling, sand adhered to the work, burrs etc., particularly in areas liable to such soiling, such as the above-mentioned orifices and ducts for lubricants, and the dirt in these areas, given the importance of their functions, may be detrimental to the proper functioning of the part, or accelerate wear, or even cause accidents.
- Consequently, before being fitted into the mechanical system of which they are components, these parts must be subjected to efficient, precision cleaning and/or deburring, in order to leave these orifices and ducts in good condition, this process being performed in the cleaning machines for machined parts that are designed for the purpose and are well known, they needing to be suitable for treating long production runs and capable of sustaining a high output of such parts.
- Devices for the precision cleaning and/or deburring of the orifices of machined parts are known in the prior art, these operations being performed by jets controlling cleaning liquid under pressure or a liquid containing abrasive material in suspension.
- Specifically, there are known devices, according to the pre-characterising part of claim 1, for that purpose in which the parts to be cleaned are loaded in at one end of the machine, conveyed with intermittent feed through the cleaning machine, by means of a feeder unit such as stepped-pitch feed bars, and then sent through various operation-performing stations one by one before finally being unloaded at the other end of the machine.
- However, a drawback in these known devices is that the movement and aim of the jet with respect to the orifice or duct to be cleaned or deburred are not precise enough, and cannot be brought sufficiently close to the holes or ducts. As a result, the cleaning is partial and imperfect.
- Devices are currently known which solve the posed problem to a certain extent, for instance that known from EP-A-0 659 523, which discloses a deburring device comprising means of supporting and spinning the part to be cleaned, arranged inside the cleaning chamber; and cleaning equipment, essentially arranged outside the cleaning chamber and fitted with nozzles for directing the cleaning liquid, these being inserted into the cleaning chamber by supporting lances passing through an opening in the chamber's upper face, in such a way that the nozzles move into position close to and facing the orifices that need to be cleaned in the part, this cleaning equipment being supported by a carriage that is external to the cleaning chamber and provided with a horizontal, shifting movement running transversely with respect to the feed direction of the feeder unit.
- The aim of this invention is to solve the drawbacks mentioned above, and further to improve performances yielded by the deburring device of EP-A-0 659 523, providing a device for the precision cleaning and/or deburring of orifices in machined parts, one giving suitable movement and positioning relative to each other of the cleaning or abrasive liquid jet and the part to be cleaned, in order to obtain better results in the cleaning process.
- In essence, the device of this invention is characterized by the combination of features according to claim 1.
- The carriage supporting the cleaning equipment may comprise a frame supporting a driving member, such as a hydraulic or pneumatic cylinder; a vertical arm, carrying the lances that hold the nozzles, that can travel vertically when the driving member is operated; guide bearings for said vertical arm; and a nut, operating in conjunction with a horizontal leadscrew, fitted on the frame of the cleaning machine and driven by a second numerical-control motor, the latter also being fitted on the frame of the cleaning machine.
- The means of closing the opening in the upper face of the cleaning chamber may consist of horizontal plates arranged to form a labyrinth.
- The significance of the innovative design, and the advantages reaped through this invention, will become apparent from a detailed description - provided only as a non-restrictive example - which will now be given of a preferred embodiment of the invention, with reference to the drawings attached, in which:
- Fig. 1 is a diagrammatic view showing the means of supporting and spinning the part to be cleaned, and the feed system for the parts, also shown, of the device of this invention; and
- Fig. 2 is a diagrammatic view showing the cleaning equipment and the means of closing used in this invention in conjunction with the mechanisms shown in Fig. 1.
-
- Fig. 1 shows a part 1 to be cleaned and/or deburred - in this case an engine crankshaft - in which the
orifices 2 to be cleaned are shown. The part 1 can be moved by afeeder unit 3, e.g. of the stepped-pitch type, fitted, by way of example, with a conveying bar that can move upwards, forwards, downwards and backwards. - Fig. 1 shows the part 1 in its position as removed from the
feeder unit 3 and set in the means for supporting and spinning it. These means are fitted, to one side of the part 1, with a set ofgrippers 4 that close on the part 1 in order to move it along, and acentring device 5 which penetrates inside a suitable zone of the part 1. The set ofgrippers 4 and thecentring device 5 are driven by an actuatingcylinder 6, preferably hydraulic though it could also be pneumatic or electric, arranged in such a way that it can make thecentring device 6 move onwards - in the directions shown by the arrows A - and thegrippers 5 close on the part 1 - with the movements shown by the arrows D - gripping it, a function that can be arranged, for example, by a mechanical device involving a lever or rack-and-pinion system. The set ofgrippers 4, thecentring device 5 and thecylinder 6 are joined to asupport 7, and spin together around at least one bearing 8, the base of which is joined to the cleaning machine. - The
support 7 is joined to acrown wheel 9 driven by a numerical-control motor 10 through apinion 11 and atransmission belt 12. - On the other side with respect to part 1, the means for supporting and spinning the part are equipped with another supporting device whose function is to support the part at its other end. Specifically, it is preferable to have a
tailstock 13, driven in its movement by the part of the means of supporting and spinning the parts fitted on the first side described, and spinning freely on abearing 14 held by asupport 15 attached to the cleaning machine. - Fig. 2 shows in diagrammatic form the cleaning equipment and the means of closing that are to be used in conjunction with the mechanisms shown in Fig. 1, as explained hereabove. The cleaning equipment is provided with a
nozzle 17, arranged to create the flow of cleaning material, plus at least one supportinglance 18, joined to thenozzle 17 and fitted on asupport 19 joined to anarm 20. Thisarm 20 can be raised or lowered, driven by acylinder 21, in the directions shown by the arrows B, in order to move thelances 18 away from the part 1 to be cleaned when that part is required to move on conveyed by the stepped-pitch feed device. - The
arm 20 can slide alongguide bearings 23 fitted on aframe 22 which can move transversely, as shown by the arrows C, with respect to the feed direction of the leadscrew, in a direction that is parallel to the axis of rotation of the part 1 and perpendicular to the direction of the sliding movement of thearm 20. This transverse movement is preferably transmitted through aleadscrew 27 driven by a second numerical-control motor 24. Alternatively, a rack-and-pinion system could be used for that transmission instead of theleadscrew 27. - Most of the unit formed by
parts closing plates 25 forming a labyrinth. - The device works as follows: firstly, the part 1 is brought by the
feed device 3, to which it is attached by known means, to the right position near the means of supporting and spinning; next, the latter clamp the part at both ends; then the stepped-pitch feed device 3 releases and moves away from the part 1, which is left ready to spin around through the agency ofparts 6 to 11; afterwards, part 1 is spun to the required angle; then thenozzles 17 of the cleaning equipment are brought, through the action of thecylinder 21 and themotor 24 to the required position with respect to the part 1; at this stage the cleaning and/or deburring operation can be commenced by the ejection of a jet of cleaning material through thenozzle 17 against the part 1. - It should be noted that, thanks to the combination of movements (the spinning of the part 1 and the raising and lowering of the lance 18), it is possible to set any geometrical figure and to keep the distance between the
nozzles 17 and theorifice 2 to be cleaned of the part 1 at a nearly constant distance, thereby substantially improving the precision of the washing and deburring. - Furthermore, since the movements are driven by two numerical-
control motors nozzles 17 with respect to theorifices 2 are programmable and repetitive, giving great advantage in comparison with current systems.
Claims (3)
- A cleaning machine for machined parts with a device for the precision cleaning and/or deburring of orifices in machined parts, fitted in the cleaning chambers of the cleaning and/or deburring stations of the cleaning machine, in which the parts to be cleaned (1) are loaded in at one end of the machine, conveyed with intermittent feed through the cleaning machine, by means of a feeder unit (3), such as stepped-pitch feed bars, and then sent through various operation-performing stations one by one before finally being unloaded at the other end of the machine, the device
characterised bymeans of supporting and spinning the part to be cleaned (1), arranged inside the cleaning chamber; andcleaning equipment, essentially arranged outside the cleaning chambers and fitted with nozzles (17) for directing the cleaning liquid, these being inserted into the cleaning chamber by supporting lances (18) passing through an opening in the chamber's upper face, in such a way that the nozzles (17) move into position close to and facing the orifices (2) that need to be cleaned in the part (1), this cleaning equipment being supported by a carriage (22) that is external to the cleaning chamber and provided with a horizontal, shifting movement running transversely with respect to the feed direction of the feeder (3), wherein said means of supporting and spinning the part (1) to be cleaned comprises two points for holding the part, which determine the axis around which the part (1) can be spun during the cleaning and/or deburring operation, at least one of the holding points being fitted with rotating grippers that grip the part (1) and are driven by one numerical-control motor (10), which governs the spinning of the part (1) enabling it to take up a number of pre-programmed positions around its axis of rotation. - A machine according to claim 1, characterized in that the carriage supporting the cleaning equipment comprises a frame (22) supporting a driving member (21), such as a hydraulic or pneumatic cylinder; a vertical arm (20), carrying the lances (18) that hold the nozzles (17), that can travel vertically when the driving member (21) is operated; guide bearings (23) for said vertical arm (20); and a nut (26) operating in conjunction with a horizontal leadscrew (27), fitted on the frame of the cleaning machine and driven by a second numerical-control motor (24), the latter also being fitted on the frame of the cleaning machine.
- A machine according to claim 1, characterized in that the means of closing the opening in the upper face of the cleaning chamber consists of horizontal plates (25) arranged to form a labyrinth.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9501402A ES2129289B1 (en) | 1995-07-12 | 1995-07-12 | DEVICE FOR WASHING AND / OR DEBURRING WITH PRECISION OF MACHINED PARTS HOLES. |
ES9501402 | 1995-07-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0753382A2 EP0753382A2 (en) | 1997-01-15 |
EP0753382A3 EP0753382A3 (en) | 1997-03-12 |
EP0753382B1 true EP0753382B1 (en) | 2001-11-21 |
Family
ID=8291024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960500095 Expired - Lifetime EP0753382B1 (en) | 1995-07-12 | 1996-07-04 | Device for the precision cleaning and/or deburring of orifices in machined parts |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0753382B1 (en) |
DE (1) | DE69617119T2 (en) |
ES (1) | ES2129289B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007006673B3 (en) * | 2007-02-10 | 2007-12-27 | Piller Entgrattechnik Gmbh | Crankshaft borehole-channel chamfering, expanding and cleaning method, involves arranging bushing assemblies at longitudinal sides of crankshaft, and positioning assemblies exactly on one of inlet and outlet openings of different channels |
FR2928290A3 (en) * | 2008-03-04 | 2009-09-11 | Renault Sas | Internal lubrication circuit chamfering method for internal combustion engine of motor vehicle, involves arranging nozzle in chamfering position in which jet is oriented in direction of junction for chamfering edge of junction |
DE102009042016B3 (en) * | 2009-09-21 | 2011-04-07 | Piller Entgrattechnik Gmbh | Device for deburring, removing and cleaning of crankshaft in processing container, has carrier plate detached from longitudinal slot after treatment of crankshaft with fluid jets and placed on workpiece carrier of conveyor |
DE102010060246B4 (en) * | 2010-10-29 | 2013-01-31 | Piller Entgrattechnik Gmbh | Apparatus for deburring, removing and cleaning waves with liquid jets exiting from nozzles under pressure |
DE102011000255B4 (en) * | 2011-01-21 | 2013-04-11 | Piller Entgrattechnik Gmbh | Device for deburring, removing and cleaning a shaft with liquid jets exiting from nozzles under pressure |
DE102015212256A1 (en) * | 2015-06-30 | 2017-01-05 | Dürr Ecoclean GmbH | Device for manipulating a tool and / or work piece |
DE102021109422A1 (en) | 2021-04-15 | 2022-10-20 | Piller Entgrattechnik Gmbh | Fluid processing machine and method for processing workpieces with a fluid jet |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES396799A3 (en) * | 1971-10-27 | 1974-06-16 | Agullo Ing | Procedure for the washing of mechanized pieces and apparatus for the realization of this procedure. (Machine-translation by Google Translate, not legally binding) |
DE3507923A1 (en) * | 1985-03-06 | 1986-09-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Abrasive-blasting apparatus for deburring |
DE3616467A1 (en) * | 1986-05-15 | 1987-11-19 | Teves Gmbh Alfred | METHOD AND DEVICE FOR DEBURRING WORKPIECES |
DE4015412C1 (en) * | 1990-05-14 | 1991-06-20 | Lothar 3300 Braunschweig De Clavey | Metal work deburring tool - has sonde inserted into bore to discharge high pressure water |
DE4342593C2 (en) * | 1993-12-14 | 2001-04-26 | Bosch Gmbh Robert | Device and method for cleaning workpieces |
FR2713974B1 (en) * | 1993-12-22 | 1996-01-19 | Snecma | Shot peening device for surfaces not accessible by a straight pipe. |
-
1995
- 1995-07-12 ES ES9501402A patent/ES2129289B1/en not_active Expired - Fee Related
-
1996
- 1996-07-04 EP EP19960500095 patent/EP0753382B1/en not_active Expired - Lifetime
- 1996-07-04 DE DE1996617119 patent/DE69617119T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69617119T2 (en) | 2002-04-18 |
EP0753382A3 (en) | 1997-03-12 |
DE69617119D1 (en) | 2002-01-03 |
ES2129289B1 (en) | 2000-02-16 |
EP0753382A2 (en) | 1997-01-15 |
ES2129289A1 (en) | 1999-06-01 |
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