WO2013150162A1 - Dispositivo portaherramientas - Google Patents
Dispositivo portaherramientas Download PDFInfo
- Publication number
- WO2013150162A1 WO2013150162A1 PCT/ES2012/070227 ES2012070227W WO2013150162A1 WO 2013150162 A1 WO2013150162 A1 WO 2013150162A1 ES 2012070227 W ES2012070227 W ES 2012070227W WO 2013150162 A1 WO2013150162 A1 WO 2013150162A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool holder
- holder device
- tool
- movement
- axial
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/34—Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/02—Use of a particular power source
- B23B2270/027—Pneumatics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/54—Methods of turning, boring or drilling not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/23—Cutting by use of rotating axially moving tool including means to cause Tool to progressively vibrate toward work
Definitions
- the present invention has application in the field of machining operations of parts, in particular to the drilling operation, and refers to a tool holder device attachable to a machine or equipment by means of a mechanized shaft or mooring cone.
- the object proposed by the invention makes it possible to produce an axial vibratory movement with respect to the linear movement of the machine and transmit it to the tool with rotation.
- Typical problems such as the generation of long and rolled shavings during the drilling of ductile materials and the appearance of unwanted vibrations, are examples of phenomena to be improved in the machining of high productivity of industrial components, since they involve an increase in downtime, giving In addition to losses due to the manufacture of defective parts and even breakdowns in the machines, so the elimination of delamination, the reduction of the burr, the reduction of the temperature of cut and the improvement of the roughness in the drilling of aeronautical materials, are objectives of great interest for the companies of the sector.
- an axial vibratory movement relative to linear movement allows reducing the problems mentioned above, as it can reduce the energy required to perform the operation, increase productivity, facilitate chip breakage, extend the life of the tools, increase the superficial and internal quality, and allow to work materials not apt to be processed in a conventional way.
- Said inventions can be classified according to the place where the vibration is applied, being, in the first place, the devices that obtain the vibration in the tool without this turning, secondly, the devices that make the piece vibrate or test tube to be drilled, and finally there are devices in which the tool rotates and vibrates simultaneously, a group in which the present invention is included.
- Said vibration is applied in the axial direction of the tool following a sinusoidal pattern and amplitude greater than the cutting edge, which causes an interruption of the cut.
- the value of the average chip thickness increases or decreases, so it is necessary to be able to modify it according to the needs of each type of drilling.
- the value of the amplitude of the vibration is an important parameter to control since not very high amplitudes are needed at the exit of the hole due to the possible delamination of the fibers.
- the present invention is based on the problem of indicating a toolholder that is designed for the application of low frequency vibrations in which the characteristics of the vibration can be varied such as the amplitude depending on the needs of the drilling and the possibility of being able to select the vibrations without changing the toolholder in operations that Do not need vibrations at the tool tip.
- the present invention relates to a tool-holder device that overcomes the aforementioned drawbacks, since it has a body that can be coupled to a machine by means of a mooring cone and a pneumatic mechanism that allows the axial vibratory movement of the tool to be produced with respect to the controlled linear movement of the machine and in which it is possible to control the amplitude of the vibrations.
- the tool holder device is attachable to a machine that can produce the rotation of the tool holder device (with respect to an axial direction containing the tool) and comprises fastening means for holding a tool.
- the device comprises a moving part that can move in the axial direction and a pneumatic mechanism, where said pneumatic mechanism can induce an axial vibratory movement to the moving part, and because the clamping means are coupled to the moving part. In this way the axial vibratory movement of the moving part is transmitted to the tool.
- the pneumatic mechanism comprises a pneumatic piston that makes a linear movement in two directions of the axial direction, to generate vibrations in a simple way.
- the mobile part of the tool holder device may comprise a chamber that houses the pneumatic piston so that it can slide axially inside the chamber and conduction means that allow pressure air to be taken to internal ducts that cross the piston and open to the chamber on axially opposite faces of the pneumatic piston , thus producing its oscillating movement that causes the piston to alternately collide with the inner walls of the chamber of the moving part, causing a similar oscillatory movement of the moving part and, therefore, of the tool tied to the moving part.
- the tool holder device can comprise a body comprising a mooring element that allows the device to be coupled to the machine and a housing in which the movable part can be axially displaced.
- the body comprises a conduit that communicates a source of pressurized air supply of the machine with the conduction means of the moving part. The body therefore exercises the functions of fastening to the machine where the device is attached and also houses the movable part, which functions to tie the tool and make the entire device vibrate by means of an axial movement relative to the body.
- the tool holder device can comprise a regulator that allows varying the amplitude of the axial movement of the moving part, thus providing the possibility of varying the amplitude of the vibrations, adapting them to each case.
- the regulator comprises a nut that engages on the body by closing the housing in a first direction according to the axial direction to stop the movement of the moving part in the first direction, while in a second direction according to the axial direction the housing remains closed and stops the movement by the body.
- the nut can vary its position in the axial direction by varying the axial length of the housing.
- the regulator can comprise adjustment means that anchor the nut to the mobile part of the device to fix the position of said nut, in a simple and integrated manner. It is contemplated that the device comprises a first buffer stop located inside the body housing so that the shock between the moving part and the body is cushioned.
- the device comprises a second buffer stop on the regulator to dampen the shock of the moving part with the regulator.
- first and second damping stops are fixed to at least two opposite faces of the movable part by means of fixing means, so that the clearance between damping stops is always referred to the body, thus enabling the Optimal variation of the vibration amplitude through the regulator.
- the body comprises joining means that join the movable part to said body, so that they rotate in solidarity with the transmitted torque, and the vibration function with rotation is achieved, in the simplest possible way.
- the pneumatic mechanism comprises return means (for example a spring housed in the chamber of the mobile part against which the pneumatic piston can collide), to facilitate the change of direction of the linear movement made by the piston.
- return means for example a spring housed in the chamber of the mobile part against which the pneumatic piston can collide
- the device comprises a sealing element between the body and the moving part (so that the clearance between the body and the moving part is sealed in at least one of its faces to prevent the escape of air intended to activate the pneumatic mechanism).
- the device comprises an anti-friction element (for example located between the outer face of the movable part and the fixed face of the body) for axial guidance between the movable part and the body.
- an anti-friction element for example located between the outer face of the movable part and the fixed face of the body
- the implant proposed by the invention constitutes an advance in the clamping devices used up to now, and solves in a fully satisfactory manner the problems set forth above, in the line of favoring drilling operations by means of Vibration of the tool, which is carried out in a simple way, with the consequent improvement of the manufacturing processes and with the consequent reduction of costs by the simplification of the process, all this through a simple and integrated design, which does not require operators Highly qualified for the task.
- Figure 1 Shows a perspective view of the device proposed by the invention.
- Figure 2. Shows a sectional view of the device, where its components can be seen, where the pneumatic mechanism can be seen in detail, with the piston in the upper position.
- Figure 3. Shows a sectional view of the device, with the piston in the lower position.
- Figure 4. Shows a sectional view of the device floor, where a detail of the keys can be seen.
- a tool holder device comprising a body (1) and a mobile part (2), where the mobile part (2) comprises fastening means (4 ) of the tool (24), preferably a clamp clamp that holds the tool (24), which is the object of the vibration of the invention, as can be seen in Figures 2, 3 and 4.
- the body (1) comprises a mooring element (5), which is preferably a mooring cone or machined shaft, for coupling to a machine, and through which a turning movement is transmitted to the body (and therefore to the tool) and the pressurized air is transferred from the machine to the tool holder device.
- This pressurized air is necessary for the vibratory effect of the tool holder as will be explained below.
- the body (1) comprises a housing in which the movable part (2) can be axially displaced.
- the mobile part (2) which is preferably a pin holder shaft, is formed by two parts, a first part
- the fixing between said first part (19) and a second part (20) of the movable part (2) or pinhole shaft, is preferably carried out by means of mooring screws along the contact area between them, so that the union of these parts form the mobile part (2), as can be seen in figures 1, 2, 3 and 4.
- the mobile part (2) comprises a chamber (21) that houses a pneumatic piston (6) generating the vibratory movement, specifically the second part
- the pneumatic piston (6) is the element responsible for generating the axial vibratory movement of the tool-holder device, and comprises distributor holes or internal ducts (22) that pass through the pneumatic piston (6) opening to the chamber (21) on axially opposite faces of the pneumatic piston (6) and therefore alternately distribute the pressurized air in the chamber (21) to produce the vibratory axial movement of the pneumatic piston (6).
- the second part (20) comprises conduction means (23) that carry the pressurized air from the duct (8) of the first part (19) to the distributor holes or internal ducts (22) of the piston (6)
- the movement of the piston (6) is produced by the entry of air through the mooring cone, where the air is carried through the duct (8) communicated with internal ducts (22) that cross the piston (6) which they receive the air and that they communicate with conduction means (23) that receive the air in an alternative way, thus allowing the alternate movement of the piston (6).
- the two extreme positions of the piston (6) in its movement within the axle holder are, on the one hand, the position of contact with the first part (1) and on the other, with the inner face of the second part (20) of the axis holder, as can be seen in figures 2 and 3.
- a return means (12) which is preferably a spring or spring, which helps the movement of the piston (6)
- the pin holder shaft (2) preferably comprises , two holes (17) that are preferably silencer holes, whose function is to give air to the system, as can be seen in figures 1, 2, 3 and 4.
- an anti-friction means (16) which is preferably a bronze bushing, for guiding the pin holder shaft (2), where said bronze bushing is fixed internally to the body (1), as can be appreciate in figures 2, 3 and 4.
- Each of the anti-rotation keys is preferably composed of two screws that are attached to the body (1) so that both the rotational and the axial vibratory movement of the piston (6) are transferred to the tool (24) through the shaft holder (2).
- the tool holder device comprises a regulator (7) of axial movement amplitude, which is composed of a nut (14) and adjustment means (13) which are preferably studs, has the function of fixing the freedom of movement of the axle holder (2) inside the body (1), leaving more or less space to exercise the vibration with different amplitudes; where the nut (14) acts as a stop of the movement, and the studs are responsible for fixing the nut (14) on the body (1), and the space between the pin holder shaft (2) and the nut (14) can vary. .
- the body (1) preferably has a nonius engraved on its outer surface that indicates the amplitude at all times and that facilitates the adjustment in case of modifying the required amplitude taking as reference the nut (14), as can be seen in the Figures 1, 2, 3 and 4.
- the type of vibrations of the present invention are considered low frequencies (between 0 and 5000Hz) depending on the size of the pneumatic actuator, the tool used, the material to be drilled, etc. It can be regulated, as indicated above, the amplitude of the vibrations by means of the amplitude regulator (7) of the axial movement, adapting the device to the needs of the process.
- a first buffer stop (10) and a second buffer stop (1 1) are arranged in the inside the body (1) to minimize the shock between the mobile part (2) and the body (1), for which a rubber stop is attached to the first part (19) of the mobile part (2) by means fixing (18), which are preferably two screws, and another rubber stop fastened to the second part (20) of the movable part (2) preferably by two other screws.
- the two rubber stops move in solidarity with the mobile part (2), where said mobile part (2) is abutting, on the one hand, with the inner face of the body, and on the other hand, with the inner face of the regulator ( 7) amplitude, which is what sets the clearance between the rubber stop and the amplitude regulator (7).
- sealing element which is preferably an annular gasket that acts as an air seal, so as to guide the air inlet to the pneumatic mechanism (3), as can be seen in figures 2, 3 and 4.
- a tool-holder device that can be attached to a machine is made possible, in which a drilling tool is attached, and which allows it to obtain vibratory movements from it as it progresses, through a mechanism pneumatic, where the air inlet is made through the coupling to the machine or equipment and produces the movement of a piston that is responsible for providing the tool with a vibratory axial movement with respect to the controlled linear movement of the support, as can be appreciate in view of figures 1, 2 and 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Jigs For Machine Tools (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2012/070227 WO2013150162A1 (es) | 2012-04-03 | 2012-04-03 | Dispositivo portaherramientas |
CA2869510A CA2869510A1 (en) | 2012-04-03 | 2012-04-03 | Tool holder device |
ES12721878.2T ES2584608T3 (es) | 2012-04-03 | 2012-04-03 | Dispositivo portaherramientas |
BR112014024808A BR112014024808A2 (pt) | 2012-04-03 | 2012-04-03 | dispositivo porta-ferramentas acoplável a uma máquina que pode produzir o giro do dispositivo |
EP12721878.2A EP2835199B1 (en) | 2012-04-03 | 2012-04-03 | Tool holder device |
MX2014012029A MX351258B (es) | 2012-04-03 | 2012-04-03 | Dispositivo portaherramientas. |
CN201280072806.0A CN104271294B (zh) | 2012-04-03 | 2012-04-03 | 刀架设备 |
US14/505,699 US20150023746A1 (en) | 2012-04-03 | 2014-10-03 | Tool holder device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2012/070227 WO2013150162A1 (es) | 2012-04-03 | 2012-04-03 | Dispositivo portaherramientas |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/505,699 Continuation US20150023746A1 (en) | 2012-04-03 | 2014-10-03 | Tool holder device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013150162A1 true WO2013150162A1 (es) | 2013-10-10 |
Family
ID=46124385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2012/070227 WO2013150162A1 (es) | 2012-04-03 | 2012-04-03 | Dispositivo portaherramientas |
Country Status (8)
Country | Link |
---|---|
US (1) | US20150023746A1 (es) |
EP (1) | EP2835199B1 (es) |
CN (1) | CN104271294B (es) |
BR (1) | BR112014024808A2 (es) |
CA (1) | CA2869510A1 (es) |
ES (1) | ES2584608T3 (es) |
MX (1) | MX351258B (es) |
WO (1) | WO2013150162A1 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106941344A (zh) * | 2016-01-05 | 2017-07-11 | 联发科技(新加坡)私人有限公司 | 信号自校准电路和方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003372A (en) * | 1959-09-29 | 1961-10-10 | Howard J Findley | Apparatus for cutting material |
US3608334A (en) * | 1968-07-09 | 1971-09-28 | Richard Glimpel | Device for limiting torque |
FR2368336A1 (fr) * | 1976-10-20 | 1978-05-19 | Irigny Mecanique | Porte-outil pour machines automatiques d'usinage |
SU623658A1 (ru) * | 1977-04-01 | 1978-08-09 | Balabanov Nikolaj | Вибросверлильна головка |
CH645826A5 (en) * | 1980-07-07 | 1984-10-31 | Ver Pignons Fabriken Ag | Chip breaker for automatic drilling and turning machines |
US6234728B1 (en) | 1997-07-07 | 2001-05-22 | Institut National Polytechnique De Grenoble | Drilling head with vibratory effect |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3028771A (en) * | 1958-06-23 | 1962-04-10 | Boyar Schultz Corp | Revolving deep driller |
US4123188A (en) * | 1977-04-04 | 1978-10-31 | Gardner-Denver Company | Control system for peck drilling tool |
CN2584328Y (zh) * | 2002-12-13 | 2003-11-05 | 天津理工学院 | 一种用于深孔与难加工材料的振动钻头 |
CN1194836C (zh) * | 2003-06-18 | 2005-03-30 | 北京航空航天大学 | 一种用于钻孔的振动装置 |
FR2944722B1 (fr) * | 2009-04-28 | 2014-10-10 | Arts | Tete de percage a vibrations axiales |
FR2961729B1 (fr) * | 2010-06-25 | 2013-03-29 | Ct Tech De L Ind Du Decolletage | Tete de percage pour machine-outil |
-
2012
- 2012-04-03 CA CA2869510A patent/CA2869510A1/en not_active Abandoned
- 2012-04-03 CN CN201280072806.0A patent/CN104271294B/zh not_active Expired - Fee Related
- 2012-04-03 BR BR112014024808A patent/BR112014024808A2/pt not_active Application Discontinuation
- 2012-04-03 ES ES12721878.2T patent/ES2584608T3/es active Active
- 2012-04-03 WO PCT/ES2012/070227 patent/WO2013150162A1/es active Application Filing
- 2012-04-03 EP EP12721878.2A patent/EP2835199B1/en not_active Not-in-force
- 2012-04-03 MX MX2014012029A patent/MX351258B/es active IP Right Grant
-
2014
- 2014-10-03 US US14/505,699 patent/US20150023746A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003372A (en) * | 1959-09-29 | 1961-10-10 | Howard J Findley | Apparatus for cutting material |
US3608334A (en) * | 1968-07-09 | 1971-09-28 | Richard Glimpel | Device for limiting torque |
FR2368336A1 (fr) * | 1976-10-20 | 1978-05-19 | Irigny Mecanique | Porte-outil pour machines automatiques d'usinage |
SU623658A1 (ru) * | 1977-04-01 | 1978-08-09 | Balabanov Nikolaj | Вибросверлильна головка |
CH645826A5 (en) * | 1980-07-07 | 1984-10-31 | Ver Pignons Fabriken Ag | Chip breaker for automatic drilling and turning machines |
US6234728B1 (en) | 1997-07-07 | 2001-05-22 | Institut National Polytechnique De Grenoble | Drilling head with vibratory effect |
Also Published As
Publication number | Publication date |
---|---|
ES2584608T3 (es) | 2016-09-28 |
CN104271294A (zh) | 2015-01-07 |
EP2835199A1 (en) | 2015-02-11 |
EP2835199B1 (en) | 2016-05-04 |
CA2869510A1 (en) | 2013-10-10 |
BR112014024808A2 (pt) | 2017-07-11 |
CN104271294B (zh) | 2016-08-24 |
MX2014012029A (es) | 2014-12-08 |
MX351258B (es) | 2017-10-06 |
US20150023746A1 (en) | 2015-01-22 |
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