CN100563919C - Direct driving type mainshaft head assembly and manufacture method thereof and comprehensive machine - Google Patents
Direct driving type mainshaft head assembly and manufacture method thereof and comprehensive machine Download PDFInfo
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- CN100563919C CN100563919C CNB2007100056223A CN200710005622A CN100563919C CN 100563919 C CN100563919 C CN 100563919C CN B2007100056223 A CNB2007100056223 A CN B2007100056223A CN 200710005622 A CN200710005622 A CN 200710005622A CN 100563919 C CN100563919 C CN 100563919C
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- 238000000034 method Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims description 19
- 238000002360 preparation method Methods 0.000 claims 2
- 230000020347 spindle assembly Effects 0.000 abstract description 25
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- 238000003754 machining Methods 0.000 description 5
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Abstract
A kind of direct driving type mainshaft head assembly (Direct drive spindle assembly) includes main fork (main fork), has the yoke (fork arms) that pedestal and pair of parallel separate and can be that the axle center rotates according to first rotating shaft.First drive unit (first drive means) has hollow shell, first motor stator and first motor rotor; Wherein, first motor rotor is coupled to the pedestal of main fork, rotates with first rotating shaft thereby drive main fork (main fork).Second drive unit (second drive means) is located between the yoke of main fork, and has a pair of second motor stator, second motor rotor and the rotor transmission ring that is concentric with second rotating shaft.Second rotating shaft direct cross is in first rotating shaft, and second motor stator is coupled to the yoke of main fork.Other has main spindle box (Spindle box), orthogonal thereto cross structure, and the first arm of this cross structure is coupled to second motor rotor by the rotor transmission ring, and second arm of cross structure connects main tapping (Spindle head).The invention is characterized in that above-mentioned a pair of yoke is after installing second drive unit, be assembled to the pedestal of main fork again, and positioning locking it, use and reach preferable adjustment precision.
Description
Technical Field
The present invention relates to a Direct Drive spindle head assembly and a method for manufacturing the same, and more particularly to a spindle head of a machining center having a Direct Drive transmission member.
Background
In a multi-axis rotary machining center used in the prior art, the rotation of the spindle head is driven by a remote spindle motor through a transmission member such as a timing belt, a gear rack, a worm gear, a bevel gear, a spur gear, or a combination thereof. In order to meet the requirements of various complex surface structures of a die or an aerospace part, when a spindle head (spindle head) runs at a high speed to machine the surface of the part, a specific angle between the spindle head and the surface structure of a machined part needs to be maintained, and when a curve of the surface structure of the machined part changes, the angle of the spindle head also needs to be changed in real time, so that the machining requirements of various complex surface structures can be effectively met. The spindle head used in the prior art has an additional transmission component, so that the spindle speed is usually required to be slowed down when the angle of the spindle head is changed, and the spindle head is accelerated to the cutting speed after the deflection angle of the spindle head is completed, so that the processing efficiency is reduced. To address this problem, a direct drive spindle head that does not require additional transmission components is one solution. The prior art US5,584,621 discloses a direct drive spindle head having two axially orthogonal direct drive rotary mechanisms, so that the spindle head (spindle head) maintains a specific angle depending on the surface structure of the workpiece. The motor stators of the two axial rotating mechanisms of US5,584,621 are all outside the motor rotor, wherein the a-axis rotating mechanism must be assembled by sequentially placing and installing components from the outside to the inside of the yoke, and because the yoke is manufactured by integral molding with a casting, the machining precision is not easy to control, and the adjustment cannot be effective during assembly, so that the problem of oil leakage is easy to occur during operation. The prior art US6,669,416 discloses another direct-drive spindle head, in which the motor rotors of two axial rotating mechanisms are both outside the motor stator, but the axial included angle between the two rotating mechanisms is 45 degrees, so that the machining precision is not easy to control, and the structural rigidity is also weak.
Therefore, it is an urgent need to solve the above-mentioned problems to provide a direct drive spindle head with the advantages of easy assembly, reduced oil leakage during operation, enhanced mechanical strength, and reduced power transmission loss.
Disclosure of Invention
In order to solve the above-mentioned problems of the prior art, the present invention provides a Direct drive spindle assembly (Direct drive spindle assembly) including a main fork (main fork) having a base and a pair of fork arms (fork arms) assembled on the base and spaced apart in parallel, and capable of rotating around a first rotation axis. In addition, there is a first drive means (first drive means) having a hollow housing concentric with the first rotational axis, a first motor stator and a first motor rotor accommodated in the first motor stator. Wherein the first motor rotor is coupled to the base of the main fork to drive the main fork (main fork) to rotate with a first rotation axis. In addition, there is a second driving device (second drive means) accommodated between the fork arms of the main fork and having a pair of second motor stators concentric with the second rotation axis, a second motor rotor and a rotor transmission ring, wherein the rotor transmission ring is accommodated in the second motor rotor, and the second motor rotor is accommodated in the second motor stator. The second axis of rotation is orthogonal to the first axis of rotation, and the second motor stator is coupled to the yoke arms of the main yoke. In addition, there is a Spindle head (Spindle box) in an orthogonal cross configuration, a first arm of the cross configuration being coupled to the second motor rotor by a rotor drive ring, and a second arm of the cross configuration being connected to the Spindle head. The pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
The invention provides a method for manufacturing a direct-drive spindle head assembly, which comprises the following steps:
providing a main fork which can rotate around a first rotating shaft as an axis and is provided with a base and a pair of fork arms which are assembled on the base and are separated in parallel;
providing a first driving device having a hollow housing concentric with the first rotation axis, a first motor stator, and a first motor rotor received in the first motor stator, the motor rotor being coupled to the base of the main fork so as to drive the main fork to rotate about the first rotation axis;
providing a second driving device accommodated between a pair of fork arms of the main fork, and having a pair of second motor stators concentric with a second rotating shaft, a second motor rotor and a rotor transmission ring, wherein the rotor transmission ring is accommodated in the second motor rotor, the second motor rotor is accommodated in the second motor stators, the second rotating shaft is orthogonal to the first rotating shaft, and the second motor stators are coupled to the fork arms of the main fork; and
providing a spindle box in an orthogonal cross structure, wherein a first arm of the cross structure is coupled to the second motor rotor through the rotor transmission ring, and a second arm of the cross structure is connected with a spindle head;
the pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
The invention provides a comprehensive processing machine with a direct-drive spindle head assembly, which is selected from one of the group consisting of a vertical comprehensive processing machine, a horizontal comprehensive processing machine, a vertical and horizontal dual-purpose comprehensive processing machine, a movable column type gantry type comprehensive processing machine and a fixed column type gantry type comprehensive processing machine, wherein the direct-drive spindle head assembly comprises:
a main fork rotatable about a first axis of rotation and having a base and a pair of spaced parallel arms;
a first driving device having a hollow housing concentric with the first rotation axis, a first motor stator, and a first motor rotor received in the first motor stator, the motor rotor being coupled to the base of the main fork so as to drive the main fork to rotate about the first rotation axis;
a second driving device accommodated between the pair of fork arms of the main fork, having a pair of second motor stators concentric with the second rotation axis, a second motor rotor and a rotor transmission ring, wherein the rotor transmission ring is accommodated in the second motor rotor, and the second motor rotor is accommodated in the second motor stators, the second rotation axis is orthogonal to the first rotation axis, and the second motor stators are coupled to the fork arms of the main fork; and
the spindle box is in an orthogonal cross structure, a first arm of the cross structure is coupled to the second motor rotor through the rotor transmission ring, and a second arm of the cross structure is connected with the spindle head; wherein,
the pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
Accordingly, it is a primary object of the present invention to provide a direct drive spindle head assembly that can adjust the angle between the spindle head and the cutting surface profile at high rotational speeds and that can respond quickly and continuously to changes in the cutting surface profile.
Another object of the present invention is to provide a direct drive spindle head assembly that can be easily assembled and reduce oil leakage.
It is still another object of the present invention to provide a direct drive spindle head assembly with better mechanical strength.
It is still another object of the present invention to provide a direct drive spindle head assembly that can reduce loss in power transmission.
It is still another object of the present invention to provide a method for manufacturing a direct drive spindle head assembly, in which the angle between the spindle head and the cutting surface profile can be adjusted at a high speed rotation, and the change in the cutting surface profile can be responded rapidly and continuously.
It is another object of the present invention to provide a method for manufacturing a direct drive spindle head assembly, which can be easily assembled and reduce oil leakage.
Another objective of the present invention is to provide a method for manufacturing a direct drive spindle head assembly with better mechanical strength.
It is still another object of the present invention to provide a method of manufacturing a direct drive spindle head assembly that reduces power transmission losses.
It is still another object of the present invention to provide a vertical converting machine having a direct drive spindle head assembly that can adjust an angle between a spindle head and a cutting surface profile at a high speed rotation and can respond quickly and continuously to a change in the cutting surface profile.
It is still another object of the present invention to provide a vertical converting machine having a direct drive spindle assembly that is easy to assemble and reduces oil leakage.
It is still another object of the present invention to provide a vertical converting machine having a direct drive spindle head assembly with improved mechanical strength.
It is a further object of the present invention to provide a vertical converting machine having a direct drive spindle head assembly with low power transmission losses.
It is still another object of the present invention to provide a horizontal type complex machine having a direct drive spindle head assembly which can adjust an angle between a spindle head and a cutting surface profile at a high speed rotation and can respond to a rapid and continuous change in the cutting surface profile.
It is still another object of the present invention to provide a horizontal converting machine having a direct drive spindle assembly that is easy to assemble and reduces oil leakage.
It is still another object of the present invention to provide a horizontal converting machine having a direct drive spindle head assembly with improved mechanical strength.
It is still another object of the present invention to provide a horizontal type complex machine having a direct drive spindle head assembly in which power transmission loss is low.
It is still another object of the present invention to provide a column-moving gantry type complex machine having a direct drive spindle head assembly which can adjust an angle between the spindle head and a cutting surface profile at a high speed rotation and can respond quickly and continuously to a change in the cutting surface profile.
It is still another object of the present invention to provide a column-moving gantry type converting machine having a direct-drive spindle head assembly that can be easily assembled and reduce oil leakage.
It is still another object of the present invention to provide a column-moving gantry type converting machine having a direct drive spindle head assembly which has a better mechanical strength.
It is still another object of the present invention to provide a column-moving gantry type converting machine having a direct drive spindle head assembly in which power transmission loss is low.
It is still another object of the present invention to provide a fixed-cylinder gantry type complex machine having a direct-drive spindle head assembly which can adjust an angle between the spindle head and a cutting surface profile at a high speed rotation and can respond quickly and continuously to a change in the cutting surface profile.
It is still another object of the present invention to provide a fixed column gantry type converting machine having a direct drive spindle head assembly that is easy to assemble and reduces oil leakage.
It is still another object of the present invention to provide a fixed column gantry type machining center having a direct drive spindle head assembly with improved mechanical strength.
It is still another object of the present invention to provide a fixed column gantry type finisher having a direct drive spindle head assembly with low power transmission loss.
It is still another object of the present invention to provide a vertical/horizontal type combined machine having a direct drive spindle head assembly which can adjust an angle between a spindle head and a cutting surface profile at a high speed rotation and can respond to a rapid and continuous change in the cutting surface profile.
It is another object of the present invention to provide a machine tool with a direct-drive spindle assembly that can be easily assembled and reduce oil leakage.
It is still another object of the present invention to provide a vertical and horizontal dual-purpose machine tool having a direct-drive spindle head assembly, wherein the direct-drive spindle head assembly has a better mechanical strength.
It is still another object of the present invention to provide a vertical and horizontal type combined machine having a direct drive spindle head assembly, wherein the power transmission loss of the direct drive spindle head assembly is low.
Drawings
Fig. 1 is a cross-sectional view of a direct drive spindle head assembly according to the present invention.
Fig. 2 is a schematic view of a direct-drive spindle head assembly according to the present invention.
Fig. 3 is a sectional view, which is a schematic view of a sectional view D-D of fig. 2, illustrating a first rotation axis of the direct drive spindle head assembly according to the present invention.
Fig. 4 is a sectional view, which is a schematic view of a sectional view B-B of fig. 2, illustrating a second rotation axis of the direct drive spindle head assembly according to the present invention.
Fig. 5 is a flow chart illustrating a method for manufacturing a direct drive spindle head assembly according to the present invention.
Description of major Components
Base 6 yoke 7
Second motor stator cooling structure 8 second motor stator 9
Detailed Description
Since the present invention discloses a spindle head assembly (spindle assembly) of a machining complex, the basic principles and architecture of the machining complex used therein are well known to those skilled in the art, and thus, the following description is not repeated in its entirety. Also, the drawings referred to below are for structural representation relating to the features of the invention and are not necessarily, nor need they be, fully drawn in actual dimensions.
Referring to fig. 1, a first preferred embodiment of the present invention is a Direct drive Spindle assembly (Direct drive Spindle assembly), which mainly comprises a main fork (main fork), a first drive means (first drive means), a second drive means (second drive means), and a Spindle box 13(Spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis.
Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis.
Referring to fig. 2 and 4, the second driving device (second drive means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross-shaped configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to the Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
Referring to fig. 5, a second preferred embodiment of the present invention is a method for manufacturing a Direct drive spindle assembly (Direct drive spindle assembly), which includes the steps of:
providing a main fork (main fork) rotatable about a first axis of rotation and having a base 6 and a pair of parallel spaced fork arms 7(fork arms) assembled to the base;
a first drive means (first drive means) is provided having a hollow housing 1 concentric with a first rotational axis, a first motor stator 2 and a first motor rotor 3. Wherein the motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with a first rotation axis;
a second drive means (second drive means) is provided which is accommodated between the yoke arms 7 of the main fork and has a pair of second motor stators 9, second motor rotors 10 and rotor drive rings 11 which are concentric with the second rotation axis. Wherein the second rotation axis is orthogonal to the first rotation axis and the second motor stator 9 is coupled to the yoke 7 of the main fork;
providing a Spindle head 13(Spindle box) in an orthogonal cross configuration, a first arm of the cross configuration being coupled to the second motor rotor 10 by a rotor transmission ring 11, and a second arm of the cross configuration being connected to the Spindle head; and a pair of yoke arms 7 positioned and secured to the base 6 of the main yoke. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. In addition, the rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9. In addition, the second motor stator 9 and the second motor rotor 10 are assembled and then placed between the yoke arms 7 of the main fork.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The present invention further provides a third preferred embodiment, which is a vertical machining Center (vertical machining Center) having a Direct drive Spindle assembly (Direct drive Spindle assembly), wherein the Direct drive Spindle assembly includes a main fork (main fork), a first drive device (first drive means), a second drive device (second drive means), and a Spindle box 13(Spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis. Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis. Referring to fig. 2 and 4, the second driving device (second drive means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross-shaped configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to the Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor transmission ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The present invention further provides a fourth preferred embodiment, which is a horizontal machining Center (horizontal machining Center) having a Direct drive Spindle assembly (Direct drive Spindle assembly), wherein the Direct drive Spindle assembly includes a main fork (main fork), a first drive device (first drive means), a second drive device (second drive means), and a Spindle head 13(Spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis. Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis. Referring to fig. 2 and 4, the second driving device (second drive means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross-shaped configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to the Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The present invention further provides a fifth preferred embodiment, which is a moving-column gantry type machining center (d.m.c.) having a Direct drive Spindle assembly (Direct drive Spindle assembly), wherein the Direct drive Spindle assembly includes a main fork (main fork), a first drive means (first drive means), a second drive means (second drive means), and a Spindle head 13(Spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis. Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis. Referring to fig. 2 and 4, the second driving device (second drive means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to a Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The present invention further provides a sixth preferred embodiment, which is a fixed-column gantry type machining center (d.m.c.) having a Direct drive Spindle assembly, wherein the Direct drive Spindle assembly includes a main fork (main fork), a first drive device (first drive means), a second drive device (second drive means), and a Spindle head 13(Spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis. Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis. Referring to fig. 2 and 4, the second driving device (second drive means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross-shaped configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to the Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The present invention further provides a seventh preferred embodiment, which is a vertical and horizontal dual-purpose integrated processing machine having a Direct drive spindle assembly (Direct drive spindle assembly), wherein the Direct drive spindle assembly includes a main fork (main fork), a first driving device (first driving means), a second driving device (second driving means), and a spindle box 13(spindle box). The main fork (main fork) has a base 6 and a pair of fork arms 7(fork arms) assembled on the base and spaced in parallel, and can rotate around a first rotation axis. Referring next to fig. 2 and 3, the first driving means (first drive means) has a hollow housing 1 concentric with the first rotation axis, a first motor stator 2 and a first motor rotor 3, and the first motor rotor 3 is coupled to the base 6 of the main fork, thereby driving the main fork (main fork) to rotate with the first rotation axis. Referring to fig. 2 and 4, the second driving device (second driving means) is accommodated between the fork arms 7 of the main fork, and has a pair of second motor stators 9, second motor rotors 10 and rotor transmission rings 11 concentric with the second rotation axis. Also, the second rotation axis is orthogonal to the first rotation axis, and the second motor stator 9 is coupled to the yoke arm 7 of the main fork. Since the yoke 7 is assembled to the base 6 and is not integrally formed with the base, it has better precision adjustment efficiency during assembly. In addition, the headstock 13(Spindle box) is in an orthogonal cross-shaped configuration, a first arm of which is coupled to the second motor rotor 10 via the rotor transmission ring 11, and a second arm of which is connected to the Spindle head. In addition, the fork arm 7 is assembled to the base 6 of the main fork after the second driving device is installed, and is positioned and locked, so that better adjustment precision is achieved.
In the above embodiment, the first motor stator 2 and the first motor rotor 3 are both accommodated in the hollow housing 1 of the first driving device, and the first motor rotor 3 is further accommodated in the first motor stator 2. The rotor drive ring 11 is accommodated in the second motor rotor 10, and the second motor rotor 10 is further accommodated in the second motor stator 9.
Furthermore, in the above embodiment, the yoke arm 7 of the main fork is provided with a shaft hole along the second rotation axis direction for accommodating the second driving device.
Furthermore, in the above embodiment, the first brake positioning structure 5 is disposed between the first motor rotors 3, and the second brake positioning structure 12 is disposed between the second motor rotors 10.
In addition, in the above embodiment, the first motor stator cooling structure is further included, and is disposed between the first motor stator 2 and the hollow housing 1 of the first rotating shaft. Furthermore, a second motor stator cooling structure 8 is also included and is disposed between the second motor stator 9 and the yoke 7 of the main yoke.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; while the foregoing description will be apparent to those skilled in the art from this disclosure, it is intended that the appended claims cover all such modifications and changes as fall within the true spirit of the invention.
Claims (12)
1. A direct drive spindle head assembly comprising:
a main fork rotatable about a first axis of rotation and having a base and a pair of spaced parallel arms;
a first driving device having a hollow housing concentric with the first rotation axis, a first motor stator, and a first motor rotor received in the first motor stator, the motor rotor being coupled to the base of the main fork so as to drive the main fork to rotate about the first rotation axis;
a second driving device accommodated between the pair of fork arms of the main fork, having a pair of second motor stators concentric with the second rotation axis, a second motor rotor and a rotor transmission ring, the rotor transmission ring being accommodated in the second motor rotor, and the second motor rotor being accommodated in the second motor stators, the second rotation axis being orthogonal to the first rotation axis, the second motor stators being coupled to the fork arms of the main fork; and
the spindle box is in an orthogonal cross structure, a first arm of the cross structure is coupled to the second motor rotor through the rotor transmission ring, and a second arm of the cross structure is connected with the spindle head;
it is characterized in that the preparation method is characterized in that,
the pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
2. The direct drive spindle head assembly according to claim 1, wherein the first motor stator and the first motor rotor received in the first motor stator are received in a hollow housing of the first driving device.
3. The direct drive spindle head assembly according to claim 1, wherein the rotor drive ring is received within the second motor stator and a second motor rotor received within the second motor stator.
4. The direct drive spindle head assembly according to claim 1, further comprising a first brake positioning structure disposed between the first motor rotors, and a second brake positioning structure disposed between the second motor rotors.
5. The direct drive spindle head assembly according to claim 1, further comprising a first motor stator cooling structure disposed between the first motor stator and the hollow housing of the first rotary shaft, and a second motor stator cooling structure disposed between the second motor stator and the yoke of the main yoke.
6. A method for manufacturing a direct-drive spindle head assembly comprises the following steps:
providing a main fork which can rotate around a first rotating shaft as an axis and is provided with a base and a pair of fork arms which are assembled on the base and are separated in parallel;
providing a first driving device having a hollow housing concentric with the first rotation axis, a first motor stator, and a first motor rotor received in the first motor stator, the motor rotor being coupled to the base of the main fork so as to drive the main fork to rotate about the first rotation axis;
providing a second driving device accommodated between a pair of fork arms of the main fork, and having a pair of second motor stators concentric with a second rotating shaft, a second motor rotor and a rotor transmission ring, wherein the rotor transmission ring is accommodated in the second motor rotor, the second motor rotor is accommodated in the second motor stators, the second rotating shaft is orthogonal to the first rotating shaft, and the second motor stators are coupled to the fork arms of the main fork; and
providing a spindle box in an orthogonal cross structure, wherein a first arm of the cross structure is coupled to the second motor rotor through the rotor transmission ring, and a second arm of the cross structure is connected with a spindle head; it is characterized in that the preparation method is characterized in that,
the pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
7. The method as claimed in claim 6, wherein the first motor stator and the first motor rotor received in the first motor stator are received in a hollow housing of the first driving device.
8. The method as claimed in claim 6, wherein the rotor driving ring is received in the second motor stator and the second motor rotor, and the second motor rotor is received in the second motor stator.
9. The method of claim 6, further comprising a first brake positioning structure disposed between the first motor rotors and a second brake positioning structure disposed between the second motor rotors.
10. The method as claimed in claim 6, further comprising a second motor stator cooling structure disposed between the second motor stator and the yoke of the main yoke, and a first motor stator cooling structure disposed between the first motor stator and the hollow housing of the first rotary shaft.
11. The method as claimed in claim 6, wherein the second motor stator and the second motor rotor are assembled and then inserted between the fork arms of the main fork.
12. A comprehensive processing machine with a direct-drive spindle head assembly is one selected from a group consisting of a vertical comprehensive processing machine, a horizontal comprehensive processing machine, a vertical and horizontal dual-purpose comprehensive processing machine, a movable column type gantry type comprehensive processing machine and a fixed column type gantry type comprehensive processing machine,
this direct drive formula spindle head subassembly includes:
a main fork rotatable about a first axis of rotation and having a base and a pair of spaced parallel arms;
a first driving device having a hollow housing concentric with the first rotation axis, a first motor stator, and a first motor rotor received in the first motor stator, the motor rotor being coupled to the base of the main fork so as to drive the main fork to rotate about the first rotation axis;
a second driving device accommodated between the pair of fork arms of the main fork, having a pair of second motor stators concentric with the second rotation axis, a second motor rotor and a rotor transmission ring, wherein the rotor transmission ring is accommodated in the second motor rotor, and the second motor rotor is accommodated in the second motor stators, the second rotation axis is orthogonal to the first rotation axis, and the second motor stators are coupled to the fork arms of the main fork; and
the spindle box is in an orthogonal cross structure, a first arm of the cross structure is coupled to the second motor rotor through the rotor transmission ring, and a second arm of the cross structure is connected with the spindle head; wherein,
the pair of fork arms are assembled to the base of the main fork after the second driving device is installed, and are positioned and locked, so that better adjustment precision is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100056223A CN100563919C (en) | 2007-03-06 | 2007-03-06 | Direct driving type mainshaft head assembly and manufacture method thereof and comprehensive machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100056223A CN100563919C (en) | 2007-03-06 | 2007-03-06 | Direct driving type mainshaft head assembly and manufacture method thereof and comprehensive machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101259590A CN101259590A (en) | 2008-09-10 |
| CN100563919C true CN100563919C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100056223A Expired - Fee Related CN100563919C (en) | 2007-03-06 | 2007-03-06 | Direct driving type mainshaft head assembly and manufacture method thereof and comprehensive machine |
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| CN (1) | CN100563919C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103111895B (en) * | 2013-03-15 | 2015-03-04 | 中国工程物理研究院机械制造工艺研究所 | Shifting fork type precise flexible connection driving mechanism |
| CN106078306A (en) * | 2016-08-22 | 2016-11-09 | 孟申机械工厂股份有限公司 | Five-axis robot head unit |
| CN112974570A (en) * | 2021-02-03 | 2021-06-18 | 山东兴泰新型材料科技有限公司 | Aluminum template correcting unit |
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