WO2010143111A1 - Device provided to be used, together with existing tools, to mill grooves inside holes - Google Patents
Device provided to be used, together with existing tools, to mill grooves inside holes Download PDFInfo
- Publication number
- WO2010143111A1 WO2010143111A1 PCT/IB2010/052501 IB2010052501W WO2010143111A1 WO 2010143111 A1 WO2010143111 A1 WO 2010143111A1 IB 2010052501 W IB2010052501 W IB 2010052501W WO 2010143111 A1 WO2010143111 A1 WO 2010143111A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pin
- slider
- ball
- shaft
- containment body
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/30—Milling straight grooves, e.g. keyways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/043—Accessories for spindle drives
Definitions
- the present invention concerns a device provided to be used, together with commercially available tools used to mill grooves of various shapes and sizes inside holes of various shapes and sizes, named in the following milling tools, which allows the use thereof as machine tools.
- a device of this kind is known for example from US Patent US-4.923.342.
- the object of the invention is to provide such a device particularly, but not exclusively, adapted to be applied in machining centres which, in order to perform their machining operations, among which the tool changes, require the locking of these tools in a predetermined position.
- - Figure 2 shows, in a front section, the tool and the head of the machine tool 6 fitted with the device for the application of the tool itself onto the machine tool;
- - Figure 3 shows the perspective exploded view of the shaft stem of the device;
- FIG. 4 shows the perspective exploded view of the containment body 10, complete with the locking mechanism and the related parts, and
- FIG. 5 shows the perspective exploded view of the anti-rotation pin, which is adapted to be positioned onto the head of the machine.
- the milling tool which belongs to the State of the Art comprises:
- a shaft stem 3 in a single piece, inserted into the body 2 ( Figure 1) , the function of which is to transmit the rotary motion, received from the head of traditional machine tools, such as drilling and milling machines and lathes, to the milling cutter 1 ( Figure 1) which is arranged on the opposite end of the body 2 from where the shaft stem 3 ( Figure 1) is inserted, and with which the shaft stem is directly engaged, through engagement pins inserted at the end thereof.
- the shaft stem forms at the same time the coupling of the tool itself to the machine tool; - a ring nut 4 ( Figure 1) which prevents the shaft stem from coming out of its housing during operation;
- the device comprises a new shaft stem 9 ( Figure 3) ; a containment body 10 ( Figure 4) which includes the locking mechanism, arranged transversely with respect to the shaft stem 9 and to the related body 2, and comprising the parts 12, 13, 14, 15, 16, 17, 18, 19 (Figure 4: 12 spring element of the slider, 13 slider, 14 anti-rotation pin, 15 spring element of the ball holding pin, 16 sensing pin, 17 ball holding pin, 18 ball, 19 guiding cap) ; a housing of the anti-rotation pin ( Figure 5) .
- the new shaft stem (Figure 3) , which replaces the shaft stem of the current state of the art 3 ( Figure 1) , comprises:
- a pin holder head 8 ( Figure 3) having holes into which the engagement pins 7 are inserted ( Figure 3) .
- Such a head is joined to the stem by means of a suitable, preferably but not exclusively threaded, joint, which is arranged at the opposite end with respect to the one where the engagement pins are inserted.
- the containment body 10 ( Figure 4) fitted with the locking mechanism, parts 12, 13, 14, 15, 16, 17, 18, 19 ( Figure 4) comprises:
- sensing pin 16 ( Figure 4) joined to the end of the ball holding pin 17 ( Figure 4) on the opposite end from where the cavity for the ball housing 18 is located ( Figure 4) .
- the sensing pin by interacting with the flat surface located on the maximum diameter of the stem 9 ( Figure 3) of the shaft ( Figure 3) , allows the latter to be locked in a predetermined position.
- Said sensing pin 16 ( Figure 2) is partly arranged in the specially foreseen cavity provided in the containment body 10 ( Figure 2) and is partly housed in the related cavity provided on the body of the milling tool 2 ( Figure 2) ; - a slider 13 ( Figure 4) partially contained within the containment body 10 ( Figure 4) that slides along its own axis in the special housing wherein it is inserted.
- This slider has on its surface a flat section with varying depth, facing the ball 18 (Figure 4) housed in the ball bearing pin 7 ( Figure 4) and serving as a guide and as a bearing for the ball itself. Said slider has moreover a groove along its axis on the side opposite the flat section, that serves as a guide for the ball.
- the slider 13 ( Figure 2) also acts as a stop to retain the ball 18 ( Figure 2), the ball holding pin
- an anti-rotation pin 14 ( Figure 4) having an inner cavity with variable geometry, wherein the end of the slider which is not inserted in the containment body is partially arranged.
- Said anti-rotation pin 14 ( Figure 2) is integrally fastened to the containment body 10 ( Figure 2), thus preventing the slider from coming completely out of its housing arranged within the containment body itself.
- the housing of the anti-rotation pin ( Figure 5) comprises: - a flanged body 21 ( Figure 5) that is applied laterally to the head of the machine tool, such as, for example, but not exclusively, a machining centre, with suitable fastening elements 20 ( Figure 5) , and having a hollow geometry adapted to house the anti-rotation pin 14 ( Figure 4) .
- the insertion of this pin into said flanged body sets the slider in motion.
- the milling tool in this configuration is inserted into the containment body 10 ( Figure 2) .
- the fastening dowels 11 ( Figure 4) or other suitable means make the containment body 10 ( Figure 2) integral with the body 2 ( Figure 2) of the milling tool.
- the shaft free to rotate, during the machining operations transmits the motion from the head of the machine tool 6 ( Figure 2) to the milling cutter 1 ( Figure 2).
- the shaft together with the milling tool is removed from the head of the machine tool 6 ( Figure 2), the anti-rotation pin 14 ( Figure 2) is unhooked from its housing, the spring element of the slider 12 ( Figure 2) releases the previously absorbed spring bias and allows the slider 13 ( Figure 2) to slide along its axis in the direction of the flanged body 21 ( Figure 2), making the sliding ball 18 ( Figure 2) rotate in the opposite direction from the movement it receives when the slider slides towards the spring element 12 ( Figure 2).
- the ball finds itself at the point where this guide is shallowest.
- the present device offers numerous advantages as compared to the state of the art, both concerning the device as a whole and as regards the individual components of the device.
- the first advantage lies in the fact that the interaction between the flat surface of the shaft stem 9 ( Figure 2) and the sensing pin 16 ( Figure 2) allows to lock the shafts of the milling tools.
- This feature makes them applicable to machine tools, such as, for example, but not exclusively, machining centres which, in order to perform their operations, including tool changes, require these tools to be locked in a predetermined position. It is made possible, therefore, to cut grooves of various shapes and sizes inside holes of various shapes and sizes with these machine tools, without having to restart other tooling with different machines, as it is the case in the current state of the art.
- the second advantage lies in the fact that the containment body 10 ( Figure 4) complete with the locking mechanism with parts 12, 13, 14, 15, 16, 17, 18, 19 ( Figure 4) connected to the milling tool body, together with the anti-rotation pin 14 ( Figure 2), which is engaged in its housing within the flanged body 21 ( Figure 2), represents the means used to ensure the anti-rotation needed for the correct operation of the milling tool itself.
- the third advantage, concerning the shaft ( Figure 3) lies in the fact that it becomes possible to substitute the engagement pins 7 ( Figure 3) more simply and more quickly as compared to the current state of the art; they are subject to wear due to the sliding friction with the cutter during the milling work.
- the fourth advantage lies in the fact that it becomes possible to substitute only the pin holder head 8 ( Figure 3) with another similar one, without having to replace the whole shaft, as must be done in the current state of the art, in case the head is damaged during milling in such a way as to make it impossible to replace the engagement pins only.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Hinges (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10740277.8A EP2440355B1 (en) | 2009-06-10 | 2010-06-04 | Device provided to be used together with existing tools to mill grooves inside holes |
ES10740277.8T ES2525352T3 (en) | 2009-06-10 | 2010-06-04 | Device provided for use in conjunction with existing tools for milling grooves inside holes |
BRPI1010854A BRPI1010854A2 (en) | 2009-06-10 | 2010-06-04 | device provided to be used, together with existing tools, for milling grooves within holes. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO2009A000443 | 2009-06-10 | ||
ITTO2009A000443A IT1394902B1 (en) | 2009-06-10 | 2009-06-10 | DEVICE PROVIDED TO BE USED JOINTLY TO THE EXISTING TOOLS FOR PROCESSING THROUGH THE MILLING OF INTERNAL HINGED GROOVES |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010143111A1 true WO2010143111A1 (en) | 2010-12-16 |
Family
ID=41479341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2010/052501 WO2010143111A1 (en) | 2009-06-10 | 2010-06-04 | Device provided to be used, together with existing tools, to mill grooves inside holes |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2440355B1 (en) |
BR (1) | BRPI1010854A2 (en) |
ES (1) | ES2525352T3 (en) |
IT (1) | IT1394902B1 (en) |
WO (1) | WO2010143111A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013035077A (en) * | 2011-08-03 | 2013-02-21 | Toshiba Mach Co Ltd | Angle head cutting tool and angle head machining machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6568394B2 (en) * | 2015-05-11 | 2019-08-28 | 川崎重工業株式会社 | Nutrunner system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475227A (en) * | 1946-10-09 | 1949-07-05 | Clarence J Evans | Milling machine |
EP0095449A1 (en) * | 1982-05-21 | 1983-11-30 | Seco Tools Ab | Device for transferring fluid to a rotating tool holder |
US4795293A (en) * | 1986-09-05 | 1989-01-03 | Mizoguchi Iron Works & Co., Ltd. | Unit for mounting a cutting tool |
EP0305616A1 (en) * | 1986-03-31 | 1989-03-08 | Yoshikazu Satoh | Machining center comprising a fluid delivery device |
US4923342A (en) | 1989-03-08 | 1990-05-08 | Harold D. Kopkie | Tool for cutting a keyslot in a workpiece bore |
-
2009
- 2009-06-10 IT ITTO2009A000443A patent/IT1394902B1/en active
-
2010
- 2010-06-04 BR BRPI1010854A patent/BRPI1010854A2/en not_active Application Discontinuation
- 2010-06-04 ES ES10740277.8T patent/ES2525352T3/en active Active
- 2010-06-04 EP EP10740277.8A patent/EP2440355B1/en active Active
- 2010-06-04 WO PCT/IB2010/052501 patent/WO2010143111A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475227A (en) * | 1946-10-09 | 1949-07-05 | Clarence J Evans | Milling machine |
EP0095449A1 (en) * | 1982-05-21 | 1983-11-30 | Seco Tools Ab | Device for transferring fluid to a rotating tool holder |
EP0305616A1 (en) * | 1986-03-31 | 1989-03-08 | Yoshikazu Satoh | Machining center comprising a fluid delivery device |
US4795293A (en) * | 1986-09-05 | 1989-01-03 | Mizoguchi Iron Works & Co., Ltd. | Unit for mounting a cutting tool |
US4923342A (en) | 1989-03-08 | 1990-05-08 | Harold D. Kopkie | Tool for cutting a keyslot in a workpiece bore |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013035077A (en) * | 2011-08-03 | 2013-02-21 | Toshiba Mach Co Ltd | Angle head cutting tool and angle head machining machine |
Also Published As
Publication number | Publication date |
---|---|
EP2440355B1 (en) | 2014-09-03 |
ES2525352T3 (en) | 2014-12-22 |
EP2440355A1 (en) | 2012-04-18 |
ITTO20090443A1 (en) | 2010-12-11 |
IT1394902B1 (en) | 2012-07-20 |
BRPI1010854A2 (en) | 2016-04-05 |
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