WO2015092094A1 - Tool holder mechanism - Google Patents
Tool holder mechanism Download PDFInfo
- Publication number
- WO2015092094A1 WO2015092094A1 PCT/ES2014/070856 ES2014070856W WO2015092094A1 WO 2015092094 A1 WO2015092094 A1 WO 2015092094A1 ES 2014070856 W ES2014070856 W ES 2014070856W WO 2015092094 A1 WO2015092094 A1 WO 2015092094A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- shaft
- motor
- holder mechanism
- rotation
- 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.)
- Ceased
Links
Classifications
-
- 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
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/32—Feeding working-spindles
- B23Q5/326—Feeding working-spindles screw-operated
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1015—Arrangements for cooling or lubricating tools or work by supplying a cutting liquid through the spindle
Definitions
- the present invention pertains to the technical field of tools used in any industrial sector, such as the aeronautical, automotive or construction sector, and more specifically for machining operations that require advancement and rotation of the tool, such as drilling and drilling. .
- the invention relates in particular to a tool-holder mechanism, for clamping and operating machining tools with feed and turn, such as drilling tools, in which two motors are independently connected to an axis, providing said one of them movement of rotation and the other of advance, achieving with a single set without couplings or additional connection mechanisms the movement of advance and rotation of the machining tool, so that a balanced, compact and precise movement is obtained.
- the present invention solves the problems existing in the state of the art by means of a tool-holder mechanism, for the fastening and actuation of a machining tool with advance and rotation, for the realization of any type of perforations or drills in any industrial sector.
- the mechanism is formed by a main drive shaft, to which are independently connected a first motor that provides the rotation of the shaft, and a second motor that provides the forward movement of said shaft.
- the first motor is connected to the shaft through a sliding connection, while the second motor is connected to the shaft through a helical connection.
- a fixing element allows the tool to be fixed to the main drive shaft.
- the main driving axis of the tool-holder mechanism may have a longitudinal bore made along its entire length to provide the central lubrication of the tool.
- Figure 1 is a schematic front view of an embodiment of a tool holder mechanism object of the present invention, showing its elements main.
- the object of the present invention is a tool-holder mechanism, used for clamping and operating machining tools, specifically for machining tools with rotation and advance, such as drilling and drilling tools.
- the tool-holder mechanism object of the present invention for the fastening and actuation of a machining tool 1, has a main drive shaft 2, to which two motors are independently connected 3.5.
- a first motor 3 provides rotation of the axis 2, which in turn provides the rotation to the tool 1.
- This first motor 3 is connected to the axis 2 by a sliding connection 4.
- a second motor 5 is responsible for providing the forward movement of the shaft 2, which in turn provides the feed to the tool 1.
- This second motor 5 is connected to the axis 2 by means of a helical connection 6.
- the tool holder mechanism additionally has a fixing element 7, whereby the tool 1 is fixed to the main drive shaft 2.
- the main drive shaft 2 has a longitudinal bore along its entire length, through which the central lubrication of the tool is performed.
- the sliding connection 4 and the helical connection 6 of the tool-holder mechanism lack mechanical play.
- connections with preload are used.
- the tool-holder mechanism has a diagonal inertia matrix, which allows a perfect rotation of the tool around its axis of rotation, which coincides with the main axis 2 of actuation of the mechanism, eliminating vibrations. and problems of circularity and concentricity. That is, the mechanism is cylindrical and symmetrical, which allows it to be statically and dynamically balanced. This is translated mathematically by speaking in a diagonal inertia matrix, which indicates that no radial stresses or moments will occur, and the machine may have a high turning speed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
MECANISMO PORTA-HERRAMIENTA TOOL-TOOL MECHANISM
DESCRIPCIÓN Campo de la invención DESCRIPTION Field of the invention
La presente invención pertenece al campo técnico de las herramientas utilizadas en cualquier sector industrial, tales como el sector aeronáutico, automoción o sector de la construcción, y más concretamente para operaciones de mecanizado que necesitan avance y giro de la herramienta, como la perforación y taladrado. The present invention pertains to the technical field of tools used in any industrial sector, such as the aeronautical, automotive or construction sector, and more specifically for machining operations that require advancement and rotation of the tool, such as drilling and drilling. .
La invención se refiere en particular a un mecanismo porta-herramienta, para la sujeción y el accionamiento de herramientas de mecanizado con avance y giro, tales como herramientas de perforación, en el que dos motores se conectan de forma independiente a un eje, proporcionando a dicho uno de ellos movimiento de rotación y el otro de avance, consiguiendo con un único conjunto sin acoples ni mecanismos de conexión adicionales el movimiento de avance y rotación de la herramienta de mecanizado, de forma que se obtiene un movimiento equilibrado, compacto y preciso. The invention relates in particular to a tool-holder mechanism, for clamping and operating machining tools with feed and turn, such as drilling tools, in which two motors are independently connected to an axis, providing said one of them movement of rotation and the other of advance, achieving with a single set without couplings or additional connection mechanisms the movement of advance and rotation of the machining tool, so that a balanced, compact and precise movement is obtained.
Antecedentes de la invención Background of the invention
En la actualidad, en todos los sectores en los que es necesario realizar operaciones de mecanizado con avance y giro de la herramienta, tales como perforación o taladrado, se utilizan herramientas que se conectan a diversos mecanismos separados entre sí para conseguir los diferentes movimientos necesarios. At present, in all the sectors in which it is necessary to carry out machining operations with advance and turn of the tool, such as drilling or drilling, tools are used that connect to various mechanisms separated from each other to achieve the different necessary movements.
Esto significa que se utilizan diferentes piezas que se acoplan a la herramienta de mecanizado, tales como el eje del movimiento, una conexión helicoidal, una conexión deslizante y el soporte para la herramienta. Estas piezas tienen funciones y especialidades distintas, y por tanto se fabrican y comercializan por separado, debiendo comprarse a proveedores distintos, lo que origina ineficiencias en la logística y el control. This means that different parts that are coupled to the machining tool are used, such as the axis of movement, a helical connection, a sliding connection and the tool holder. These pieces have different functions and specialties, and therefore are manufactured and marketed separately, and must be purchased from different suppliers, resulting in inefficiencies in logistics and control.
A esto se le debe añadir que para conseguir determinados movimientos de la herramienta de perforación se deben reunir todas estas piezas con numerosos órganos mecánicos de transmisión, lo que origina que el sistema no sea compacto, y que presente numerosas imprecisiones, tales vibraciones, incumplimientos de circularidad y concentricidad. Esto da lugar a un sistema no equilibrado que afecta a la calidad de la perforación. To this it must be added that to achieve certain movements of the drilling tool all these parts must be assembled with numerous mechanical transmission organs, which causes the system to not be compact, and to present numerous inaccuracies, such vibrations, breaches of circularity and concentricity. This results in an unbalanced system that affects the quality of the drilling.
Era por tanto deseable mecanismo que fuera capaz de proporcionar los movimientos necesarios para un mecanizado eficiente, evitando los inconvenientes existentes en los anteriores sistemas del estado de la técnica. It was therefore desirable mechanism that was able to provide the movements necessary for efficient machining, avoiding the inconvenience existing in the prior art systems.
Descripción de la invención Description of the invention
La presente invención resuelve los problemas existentes en el estado de la técnica mediante un mecanismo porta-herramienta, para la sujeción y accionamiento de una herramienta de mecanizado con avance y giro, para la realización de cualquier tipo de perforaciones o taladros en cualquier sector industrial. The present invention solves the problems existing in the state of the art by means of a tool-holder mechanism, for the fastening and actuation of a machining tool with advance and rotation, for the realization of any type of perforations or drills in any industrial sector.
El mecanismo está formado por un eje principal de accionamiento, al que están conectados de forma independiente un primer motor que proporciona la rotación del eje, y un segundo motor que proporciona el movimiento de avance de dicho eje. The mechanism is formed by a main drive shaft, to which are independently connected a first motor that provides the rotation of the shaft, and a second motor that provides the forward movement of said shaft.
El primer motor está conectado al eje mediante una conexión deslizante, mientras que el segundo motor está conectado al eje mediante una conexión helicoidal. The first motor is connected to the shaft through a sliding connection, while the second motor is connected to the shaft through a helical connection.
Un elemento de fijación permite la fijación de la herramienta al eje principal de accionamiento. A fixing element allows the tool to be fixed to the main drive shaft.
Esta conexión independiente de los dos motores de movimiento al eje consigue que la función para la rotación y la función para el avance de la herramienta estén separadas entre sí para simplificar la fabricación y los ajustes finales. Así, el movimiento de rotación de la herramienta se conseguirá con únicamente uno de los motores, y el de perforación, con avance, necesitará los dos motores. This independent connection of the two motors of movement to the axis achieves that the function for the rotation and the function for the advance of the tool are separated from each other to simplify the manufacture and the final adjustments. Thus, the rotational movement of the tool will be achieved with only one of the motors, and that of drilling, with advance, will require both motors.
Preferentemente, el eje principal de accionamiento del mecanismo porta-herramienta puede disponer de una perforación longitudinal realizada a lo largo de toda su longitud para proporcionar la lubricación central de la herramienta. Preferably, the main driving axis of the tool-holder mechanism may have a longitudinal bore made along its entire length to provide the central lubrication of the tool.
El hecho de que un único conjunto integral proporcione los movimientos necesarios para el giro con avance de la perforación, hace que ésta sea compacta, eliminándose ajustes y conexiones entre diferentes elementos, y con ello eliminando imprecisiones tales como vibraciones, y consiguiéndose un sistema equilibrado que cumple con los requerimientos de circularidad, concentricidad y tolerancias. Breve descripción de los dibujos The fact that a single integral set provides the necessary movements for the rotation with advance of the drilling, makes it compact, eliminating adjustments and connections between different elements, and thereby eliminating inaccuracies such as vibrations, and achieving a balanced system that meets the requirements of circularity, concentricity and tolerances. Brief description of the drawings
A continuación, para facilitar la comprensión de la invención, a modo ilustrativo pero no limitativo se describirá una realización de la invención que hace referencia a una figura. Next, to facilitate the understanding of the invention, an illustrative but not limiting way will describe an embodiment of the invention that refers to a figure.
La figura 1 es una vista esquemática frontal de una realización de un mecanismo porta-herramienta objeto de la presente invención, que muestra sus elementos principales. Figure 1 is a schematic front view of an embodiment of a tool holder mechanism object of the present invention, showing its elements main.
En esta figura se hace referencia a un conjunto de elementos que son: This figure refers to a set of elements that are:
1 . herramienta one . tool
2. eje principal de accionamiento del mecanismo porta-herramienta 2. main axis of drive of the tool-holder mechanism
3. primer motor para la rotación del eje 3. first motor for shaft rotation
4. conexión deslizante del primer motor al eje 4. sliding connection of the first motor to the shaft
5. segundo motor para el movimiento de avance del eje 5. second motor for shaft advance movement
6. conexión helicoidal del segundo motor al eje 6. helical connection of the second motor to the shaft
7. elemento de fijación de la herramienta al eje 7. tool fixing element to the shaft
Descripción detallada de la invención Detailed description of the invention
El objeto de la presente invención es un mecanismo porta-herramienta, utilizado para la sujeción y el accionamiento de herramientas de mecanizado, concretamente para herramientas de mecanizado con giro y avance, tales como herramientas de perforación y taladrado. The object of the present invention is a tool-holder mechanism, used for clamping and operating machining tools, specifically for machining tools with rotation and advance, such as drilling and drilling tools.
Tal y como se puede apreciar en la figura, el mecanismo porta-herramienta objeto de la presente invención, para la sujeción y accionamiento de una herramienta 1 de mecanizado, tiene un eje 2 principal de accionamiento, al que están conectados de forma independiente dos motores 3,5. As can be seen in the figure, the tool-holder mechanism object of the present invention, for the fastening and actuation of a machining tool 1, has a main drive shaft 2, to which two motors are independently connected 3.5.
Un primer motor 3 proporciona la rotación del eje 2, el cual a su vez proporciona el giro a la herramienta 1 . Este primer motor 3 está conectado al eje 2 mediante una conexión deslizante 4. A first motor 3 provides rotation of the axis 2, which in turn provides the rotation to the tool 1. This first motor 3 is connected to the axis 2 by a sliding connection 4.
Un segundo motor 5 es el encargado de proporcionar el movimiento de avance del eje 2, el cual a su vez proporciona el avance a la herramienta 1 . Este segundo motor 5 está conectado al eje 2 mediante una conexión helicoidal 6. A second motor 5 is responsible for providing the forward movement of the shaft 2, which in turn provides the feed to the tool 1. This second motor 5 is connected to the axis 2 by means of a helical connection 6.
El mecanismo porta-herramienta presenta adicionalmente un elemento de fijación 7, mediante el cual la herramienta 1 se fija al eje 2 principal de accionamiento. The tool holder mechanism additionally has a fixing element 7, whereby the tool 1 is fixed to the main drive shaft 2.
Preferentemente, el eje 2 principal de accionamiento tiene una perforación longitudinal a lo largo de toda su longitud, a través de la cual se realiza la lubricación central de la herramienta. Preferably, the main drive shaft 2 has a longitudinal bore along its entire length, through which the central lubrication of the tool is performed.
De forma particular, la conexión deslizante 4 y la conexión helicoidal 6 del mecanismo porta-herramienta carecen de juego mecánico. Para cancelar el juego mecánico, se utilizan conexiones con precarga. Por ejemplo, en el caso de un husillo de bolas, se aumenta el diámetro de las bolas para eliminar el posible juego, y en el caso de husillo sin bolas, se pueden utilizar dos tuercas, una presionada contra la otra. Según una realización concreta de la invención, el mecanismo porta-herramienta presenta una matriz de inercia diagonal, lo que permite un giro perfecto de la herramienta alrededor de su eje de giro, que coincide con el eje 2 principal de accionamiento del mecanismo, eliminándose vibraciones y problemas de circularidad y concentricidad. Es decir, el mecanismo es cilindrico y simétrico, lo que permite equilibrarlo estáticamente y dinámicamente. Esto se traduce matemáticamente hablando en una matriz de inercia diagonal, lo cual indica que no se producirán esfuerzos radiales ni momentos, y la máquina podrá presentar una alta velocidad de giro. In particular, the sliding connection 4 and the helical connection 6 of the tool-holder mechanism lack mechanical play. To cancel the mechanical set, connections with preload are used. For example, in the case of a ball screw, the diameter of the balls is increased to eliminate the possible play, and in the case of a ball-free screw, two nuts can be used, one pressed against the other. According to a specific embodiment of the invention, the tool-holder mechanism has a diagonal inertia matrix, which allows a perfect rotation of the tool around its axis of rotation, which coincides with the main axis 2 of actuation of the mechanism, eliminating vibrations. and problems of circularity and concentricity. That is, the mechanism is cylindrical and symmetrical, which allows it to be statically and dynamically balanced. This is translated mathematically by speaking in a diagonal inertia matrix, which indicates that no radial stresses or moments will occur, and the machine may have a high turning speed.
Una vez descrita de forma clara la invención, se hace constar que las realizaciones particulares anteriormente descritas son susceptibles de modificaciones de detalle siempre que no alteren el principio fundamental y la esencia de la invención. Once the invention is clearly described, it is noted that the particular embodiments described above are subject to modifications in detail as long as they do not alter the fundamental principle and essence of the invention.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP201331876 | 2013-12-20 | ||
| ES201331876A ES2541477B1 (en) | 2013-12-20 | 2013-12-20 | TOOL-TOOL MECHANISM. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015092094A1 true WO2015092094A1 (en) | 2015-06-25 |
Family
ID=53402155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2014/070856 Ceased WO2015092094A1 (en) | 2013-12-20 | 2014-11-19 | Tool holder mechanism |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2541477B1 (en) |
| WO (1) | WO2015092094A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1266132A (en) * | 1967-12-12 | 1972-03-08 | ||
| US4926709A (en) * | 1988-05-16 | 1990-05-22 | Gardner James J | Motion transmitting systems for machinery & machine tools |
| US5100271A (en) * | 1988-03-28 | 1992-03-31 | Brother Kogyo Kabushiki Kaisha | Tool driving unit |
| US5157822A (en) * | 1987-05-18 | 1992-10-27 | Farley Cutting Systems Australia Pty. Ltd. | Plate working machine |
| US5649451A (en) * | 1994-06-30 | 1997-07-22 | Ruland; Frederick W. | Compact mechanism for creating simultaneous rotary and linear motion |
| EP1839807A2 (en) * | 2006-03-30 | 2007-10-03 | Otto Bihler Handels-Beteiligungs-GmbH | Tool driving assembly |
| US20110091295A1 (en) * | 2008-04-18 | 2011-04-21 | Atlas Copco Tools Ab | Portable power drill with drilling implement rotating and feeding means |
-
2013
- 2013-12-20 ES ES201331876A patent/ES2541477B1/en not_active Withdrawn - After Issue
-
2014
- 2014-11-19 WO PCT/ES2014/070856 patent/WO2015092094A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1266132A (en) * | 1967-12-12 | 1972-03-08 | ||
| US5157822A (en) * | 1987-05-18 | 1992-10-27 | Farley Cutting Systems Australia Pty. Ltd. | Plate working machine |
| US5100271A (en) * | 1988-03-28 | 1992-03-31 | Brother Kogyo Kabushiki Kaisha | Tool driving unit |
| US4926709A (en) * | 1988-05-16 | 1990-05-22 | Gardner James J | Motion transmitting systems for machinery & machine tools |
| US5649451A (en) * | 1994-06-30 | 1997-07-22 | Ruland; Frederick W. | Compact mechanism for creating simultaneous rotary and linear motion |
| EP1839807A2 (en) * | 2006-03-30 | 2007-10-03 | Otto Bihler Handels-Beteiligungs-GmbH | Tool driving assembly |
| US20110091295A1 (en) * | 2008-04-18 | 2011-04-21 | Atlas Copco Tools Ab | Portable power drill with drilling implement rotating and feeding means |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2541477A1 (en) | 2015-07-20 |
| ES2541477B1 (en) | 2016-04-26 |
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