JP2002079420A - Gear composite working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide compact constitution in a gear composite working device capable of performing a plurality of types of machining by a single machine. SOLUTION: A plurality of gear working processing sections A, B, C and D are set in equally spaced relation on a circumference made around a virtual axis 3 on a machine base 2. A gear material carrying device 4 to be provided on the machine base 2 can hold a number of gear materials 12 corresponding to the number of the processing sections A, B, C and D in equally spaced relation and be rotated in one direction around the virtual axis 3 while indexing angles to make the gear material 12 correspond to each of the processing sections A, B, C and D in order. A port (A) for carrying in and out the gear material 12 is allocated for the processing section A, and a 'gear deburring' device 101 is arranged in the processing section B positioned on the rotation end side of a gear material carrying device 4 more than the port (A), and A 'tooth finishing' device 102 is arranged in the gear cutting processing section D positioned on the rotation end side of the gear material carrying device 4 more than the processing section B and on the rotation starting end side of the gear material carrying device 4 more than the carrying in and out port (A).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined gear machining apparatus which can simultaneously perform "deburring of teeth" and "finishing of teeth" in a single apparatus in a flow operation.

[0002]

2. Description of the Related Art As the "tooth finishing" processing of a gear, a shaving cutter, which is a gear type tool, is rotated while being lightly pressed while being engaged with a gear material after gear cutting, and a small amount of shaving is removed from the tooth surface. In general, a shaving process for smoothing the tooth surface and correcting the tooth profile and pitch to obtain high precision is common. Alternatively, honing may be performed in which a tooth surface of a gear material is polished by engaging and rotating a gear-type grindstone. Also, if burrs remain on the gear material, it may cause scratches on the tooth surface at the time of the “finishing” processing,
When it is bad, there is a possibility that the shaving cutter or the grindstone may be damaged. .

[0003] The technology of an apparatus for performing such a "tooth finishing" process and a "tooth deburring" process by a single machine in a flowable manner is known, for example, Japanese Patent Laid-Open No. 10-764.
No. 25 discloses an example. This Japanese Patent Application Laid-Open No. H10-76
The device of No. 425 has a chamfering device for deburring and a finishing device for shaving, and transports a work (gear material) between a chamfering standby portion and a finishing standby portion. It is equipped with a loader that automatically performs chamfering and finishing, and saves space for the device that processes gears, and simplifies the transfer device and shortens the transfer time.

[0004]

However, in the above-mentioned apparatus, the chamfering apparatus and the finishing apparatus for shaving are arranged in a straight line, and a gear material is carried into the apparatus to load the loader. Since it is processed one after another while being transported in a straight line by, it is carried out from the end of the transport, so that the device occupies a considerable length area of the gear manufacturing line, and the space of the device itself is saved. However, it is very difficult to contribute to shortening the length of the entire gear manufacturing line. Further, since the gear material is once sent to a chamfering standby section or a finishing standby section and is then standby there, the non-machining time is long and the cycle time cannot be reduced sufficiently.

[0005]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in the first aspect, a plurality of gear processing sections are set at equal intervals on a circumference around a virtual axis on the machine base, and a gear material transfer device is provided on the machine base. Thus, the gear material transfer device can hold a number of gear materials corresponding to the number of the gear processing units at equal intervals, and sequentially correspond the held gear materials to each of the gear processing units. Therefore, it is configured to be able to rotate in one direction around the imaginary axis while calculating the angle, and one of the gear processing sections is assigned a carry-in port for the gear material, and the gear processing section adjacent to it is Assigns a gear material carry-out port, or assigns a dual-purpose port for carrying in and carrying out gear material to one of the gear processing units, and sets the gear based on the port that carries in the gear material. Material transport The gear processing unit located on the rotation end side of the device is provided with a "teeth deburring" device, and the gear processing unit provided with the "teeth deburring" device is located on the rotation end side of the gear material transfer device. The "gear finishing" device is provided in the gear processing section which is located and located on the rotation start end side of the gear material conveying device from the port for carrying out the gear material.

According to a second aspect of the present invention, there is provided the gear complex machining apparatus according to the first aspect, wherein the gear material held by the gear material conveying device is subjected to a process by the “teeth deburring” device. The rotation axis of the gear material and the rotation axis of the gear material when the gear material held by the gear material transfer device is being processed by the “tooth finishing” device are the same parallel to the top of the machine base. On a plane,
Further, in the gear material conveying device, the portion holding the gear material has a first height at which the gear material meshes with the gear on the device side and a second height above the gear, and To be able to move linearly along an axis orthogonal to the table top, and when the portion holding the gear material is at the second height, the rotation and angle of rotation about the virtual axis are It is configured to perform indexing.

[0008]

Next, embodiments of the present invention will be described. FIG. 1 is a perspective view showing the overall configuration of a combined gear machining apparatus according to one embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view thereof. FIG. 4 is a front view showing a rotatable state in which the loading unit is at a rotation height, and FIG. 5 is a conceptual diagram showing a processing operation of the gear combination machining apparatus.

Gear combined machining apparatus 1 shown in FIGS. 1 and 2
Performs "deburring of teeth" processing and shaving on a gear material that has been tooth-cut with a hobbing machine or the like to form a tooth groove, chamfering the ridge angle between the tooth surface and the end surface, and removing burrs generated during gear cutting. The "tooth finishing" process is performed continuously by a single machine.

[Construction of the Entire Apparatus] Specifically, as shown in FIG.
As shown in FIG. 2, four gear processing units A, B, C, and D are provided on the circumference of a virtual axis 3 perpendicular to the upper surface of the machine base 2. Are set at equal intervals. A gear material transfer device 4 is provided at the position of the virtual axis 3. The gear material transfer device 4 includes a main body 7
And four loading portions 11 1 1 1 1 1 1 1 attached to the main body 7 for holding the gear material. As shown in FIG. 3, the main body 7 is slidable up and down along the virtual axis 3, and can be rotated in one direction around the virtual axis 3 as shown in FIGS. The four loading parts 11 ・ 11 ・ 11
11 are provided radially at equal intervals on the outer peripheral surface of the main body 7 so that each loading portion 11 can hold one gear material 12 therein so that its axis is horizontal.

The four gear processing units A, B, C, D
As shown in FIG. 5, the gear material transport device 4
, The processing unit A → the processing unit B → the processing unit C → the processing unit D.
As it goes further to the rotation end side, it makes a round and returns to the processing section A again.

The four gear processing units A, B, and C
Regarding D, the processing operation of the gear blank 12 is assigned as shown in FIG. This will be described below. That is, the processing section A is a port for performing the loading and unloading of the gear material 12, and the unprocessed gear material 12 is set in the loading section 11 located in the processing section A. The gear material 12 that has returned through the parts B, C, and D
The processing unit A takes it out of the loading unit 11. The processing section B is provided with a deburring device 101, which is a "teeth deburring" device. In this device, the deburring cutter 110 shown in FIGS. The deburring cutter 11 is sandwiched between two disc cutters 114 and 114 shown in FIG.
By rotating the gear blank 12 by driving the gear 0, the ridge angle between the tooth surface and the end face of the gear blank is chamfered, and at the same time, burrs generated at the time of forming the tooth space are removed. In this embodiment, the processing section C is not provided with any device, but is an idle section. In the processing section D, a shaving device 102 as a “tooth finishing” device is provided.
The shaving cutter 112 as a gear-type tool shown in FIG. 3 is engaged with the gear material 12 and rotated to perform the above-described shaving processing, thereby performing a process of improving the accuracy of the gear material 12 as a gear.

Note that this assignment is an example, and for example,
The processing unit A is provided with a gear material loading port, the processing unit B is provided with a deburring device, the processing unit C is provided with a shaving device, and the processing unit D is provided.
It is also possible to arrange a port for carrying out the gear material. That is, the processing unit A is not used as a dual-purpose port for carrying in and out, and the carrying-in port and the carrying-out port are individually assigned to the processing units A and D adjacent to each other. Also, other allocation configurations are possible, which will be described later.

[Gear Material Conveying Apparatus] Next, the plurality of gear materials 12 are held, and each of the above-mentioned processing sections A, B, C, D is processed.
The configuration of the gear material transporting device 4 that sequentially transports the gear material will be described. FIG. 6 is a side sectional view of the gear material conveying apparatus. FIG.
FIG. 2 is a perspective view showing the overall appearance of the gear material conveying device.

In addition to the main body 7 and the loading portion 11, the gear material transporting device 4 includes a base shaft 5 (FIGS. 2 to 4) standing upright along the virtual axis 3, and an upper part of the base shaft 5. The main body 7 is formed in a tubular shape and is fitted to the base shaft 5 slidably up and down. The base shaft 5 of the gear material transfer device 4
In the outer peripheral surface of the (1), four guide grooves 8 in the vertical direction are provided at equal intervals every 90 ° (FIGS. 3, 6, and 7). Further, a protrusion 9 is provided on the inner peripheral surface near the upper end of the main body 90.
The main body 7 slides on the base shaft 5 by sliding while engaging the projections 9 in the respective guide grooves 8 (FIGS. 6 and 7). In this case, rotation around the virtual axis 3 is prevented. The main body 7 is slid up and down by a hydraulic cylinder 20 provided on the base shaft 5.
This is performed by the forward / backward drive.

The rotary carrier 6 is formed in a cylindrical shape as shown in FIG. 3, and is fitted on the upper portion of the base shaft 5 to be rotatable. The upper side of the rotary transporter 6 is a gear portion 6a having a tooth groove formed on the outer peripheral surface, and the lower side of the rotary transporter 6 is a transport portion 6b having a plurality of concave portions 22 formed at the lower edge for receiving the protrusions. A rotary drive device 23 composed of a brake motor and a parallel cam index mechanism is disposed on the base shaft 5, and its output shaft 23a is extended downward as shown in FIG. The driving gear 24 meshes with the gear portion 6a of the rotary transport body 6, and the rotary drive unit 23 drives the rotary transport body 6 to rotate. The concave portion 2 provided in the transport section 6b
4 are provided at equal intervals every 90 °.
The four projections 9 provided on the inner peripheral surface of the first and second rims can enter the four recesses 22 respectively. In addition, the rotation drive device 23 is provided with an angle indexing mechanism, which rotates the rotary conveyance body 6 by 90 ° at each time, and in which the concave portion 22 has an angle corresponding to the guide groove 8 on the base shaft 5. The rotation driving device 23 is controlled so that the rotary conveyance body 6 is stopped.

Therefore, when the main body 7 is raised by the drive of the hydraulic cylinder 20 and reaches the upper limit position in a state where the rotary conveyance body 6 is stationary, the projection 9 is moved to the base shaft 5 as shown by a chain line in FIG. If the rotation driving device 23 is driven in this state by entering the concave portion 22 of the rotary conveyance body 6 from the upper guide groove 8, the main body 7 can be rotated by 90 ° via the protrusion 9 by the rotation of the rotary conveyance body 6. it can. By this rotation, the protrusion 9 is sent from the original guide groove 8 to the guide groove 8 located next to the guide groove 8, and the protrusion 9 slides in the guide groove 8 when the next main body 7 moves up and down.

As shown in FIGS. 1 and 2, four loading portions 11 1 1 1 1 1 1
1 are radially provided at the same height and at equal intervals with a phase difference of 90 °. The loading portions 11 1 1 1 1 1 1 are moved up and down while maintaining the same height as the main body 7 is moved up and down. 11 is the four gear processing units A, B, C, and 4 provided around the gear material transfer device 4.
It is configured to face D. The configuration of the loading unit 11 will be described later. The main body 7 is lowered, and four loading parts 11 ・ 11 ・
By lowering 11 ・ 11, the processing units A ・ B ・
Each gear material 12 is supplied to CD. Here, a processing unit provided with a processing device having a gear meshed with the gear blank 12 (a processing unit B provided with the deburring device 101 and a processing unit D provided with the shaving device 102). , The gear material 12 held by the gear material conveying device 11 and the gears on the device side (specifically, the deburring cutter 110 or the shaving cutter 11
2) is performed together with the lowering. Details will be described later.

The body 7 is lowered and the loading section 11
When 11 ・ 11 ・ 11 reaches the lower limit position, the gear material 12 held by each loading portion 11 is subjected to a machining process corresponding to each of the gear machining portions A, B, C, D (the machining portion B). , The tooth deburring process and the shaving process in the processing unit D are performed simultaneously. After the processing is completed, the four loading sections 11.1 together with the main body 7 are processed.
The gear materials 12 set in the processing section A are transferred to the processing section B by rotating the loading sections 11 together with the main body 7 by 90 ° around the imaginary axis at the upper limit position. , B, the gear blank 12 subjected to the deburring process is transferred to C, the gear blank 12 waiting at C, to D, and the gear blank 12 subjected to shaving at D, to A.

In the present specification, the height of the loading portion 11 when the gear blank 12 is subjected to the processing is defined as:
The height of the loading portion 11 when rotating while determining an angle with the main body 7 around the virtual axis 3 is referred to as a “processing height” as a first height, and a “rotation height” as a second height. Called. In FIG. 3, the case where the loading portion is at the machining height is indicated by a solid line, and the case where the loading portion is at the rotation height is indicated by a chain line. As is clear from this figure, the rotation height is greater than the machining height. Is also set at the upper position. As described above, the four loading portions 11 are mounted at the same height with respect to the main body 7 of the gear material transfer device 4,
Since it is configured to move up and down together with the main body 7 while maintaining the same height, the height of each gear material 12 held by the four loading portions 11 includes the case where the loading portion 11 is at the processing height. Always the same, each gear material 1
The rotation axis 2 is always located on the same plane parallel to the upper surface of the machine base 2.

As described above, one cycle is defined as lowering of the loading section 11 → each processing of the gear blank 12 at the processing height → rising of the loading section 11 → 90 ° rotation of the loading section 11 at the rotation height. Is repeated, a series of machining processes for up to four gear blanks 12 are sequentially performed in a flowable manner. That is,
As shown in FIG. 5 which is a conceptual diagram, the gear material 12 carried in from the processing unit A and set in any of the four loading units 11 is subjected to deburring in the processing unit B.
After waiting at the processing section C, shaving processing is performed at the processing section D, and the processing section A returns to the processing section A again and is carried out.

[Loading Unit] Next, the structure of the loading unit 11 provided in the gear material conveying device 4 for holding the gear material 12 will be described. FIG. 8 is a front view showing the configuration of the loading unit. FIG. 9 is a front view showing a state in which the gear material to be sent abuts the gear on the device side and the tooth tip, and the carrier in the loading section escapes.

The loading section 11 includes a main body 51 attached to a side surface of the main body 7 of the gear material conveying device 4,
The carrier 53 is supported by the main body 51. The main body 51 of the loading section 11 is connected to the gear material conveying device 4.
By attaching to the body 7 of the
Is movable linearly along the axis perpendicular to the upper surface of the machine base 2 together with the main body 7. Carrier 53
Is configured such that the gear blank 12 can be supported via an arc-shaped guide surface 59. The carrier 53 is
A spindle 5 arranged in parallel with the held gear blank 12
It is supported by the main body 51 so as to be tiltable around 4. The guide surface 59 formed on the carrier 53 is formed into a substantially “C” -shaped arc surface in a side view. FIG.
As shown in FIG.
The gear blank 12 is configured to be slightly larger than the diameter of the addendum circle, and the gear blank 12 can be rotatably slidably held in the carrier 53 via the guide surface 59. The guide surface 59 is disposed so that its release part faces away from the virtual axis 3.
Will expose a part of the outer periphery of the gear from the release portion. In the carrier 53, the guide surface 5
The portion forming 9 is configured to be replaceable, and it is possible to cope with a change in the outer diameter of the gear blank 12 to be processed by replacing the portion.

A positioning mechanism 78 is interposed between the carrier 53 and the main body 51. The positioning mechanism 78 normally keeps the carrier 53 in a fixed position shown in FIG. However, as shown in FIG. 9, when the gear blank 12 is fed to the apparatus-side gear (the deburring cutter 110 in the figure) and meshes with each other, when the tips of the two gears 12 and 110 contact each other and meshing is not successful. Is carrier 5
3 is inclined around the support shaft 54 and escapes, and the urging force in the direction of approaching the deburring cutter 110 is applied to the carrier 53 by the urging spring 80 elastically mounted between the carrier 53 and the main body 51. The gear material 12 is supplied to the gear material 12 via the gears. In addition, the control pin 85
When the carrier 53 is in the normal posture shown in FIG. 8, it does not protrude from the guide surface 59, but when the carrier 53 is inclined and escapes, it protrudes from the guide surface 59 as shown in FIG. To engage with the tooth space of the gear material 12 to restrict the rotation of the gear material 12,
By sending 2, the poor meshing is eliminated. As a result, good meshing between the two gears 12 and 110 can be reliably achieved by only one supply operation of the gear blank 12.

As shown in FIG. 2, FIG. 3 and FIG. 8, in the deburring apparatus 101 provided in the gear processing section B, the deburring cutter 110 which meshes with the gear blank 12 and rotates when processing is performed. , On the side farther than the loading unit 11 with respect to the virtual axis 3. Therefore,
As the loading section 11 descends, the gear blank 12 is sent to the deburring cutter 110, and the gear blank 12 exposed from the carrier 53 is provided at a portion of the deburring cutter 110 closer to the virtual axis 3. Are engaged with each other. The loading unit 11 moves to the above-described processing height while appropriately rotating the gear blank 12 held therein as necessary. The same applies to the shaving device 102 provided in the gear processing section D. The gear material 12 is sent to the shaving cutter 112 as the loading section 11 moves down in the processing section D, and the shaving cutter 112 The outer peripheral portion of the gear blank 12 exposed from the carrier 53 is meshed with the portion on the side closer to the virtual axis 3.

In this embodiment, the rotation height is set to be higher than the machining height, and the gear blank 12 is engaged with the gears 110 and 112 on the apparatus side while the gear blank 12 is lowered. The engagement with the gears 110 and 112 on the side is made smooth. That is, the gear blank 12 is engaged with the gears 110 and 112 while being lowered, so that the gear blank 12 is separated from the gears 110 and 112 on the device side (opposite to gravity) through the teeth.
It will receive an upward force. As a result, the force and the gravity cancel each other, the friction generated between the tooth tip of the gear blank 12 and the guide surface 59 of the carrier 53 is reduced, and the gear blank 12 rotates more smoothly in the carrier 53. As a result, the meshing trouble is more effectively suppressed.

[Deburring Apparatus] Next, the deburring apparatus 101 for chamfering the ridge angle between the tooth surface and the end face of the gear blank 12 and simultaneously deburring the end face will be described. The deburring device 1 provided in the gear processing section B
01, the loading unit 1 viewed from the virtual axis 3
The deburring cutter 110 is disposed at a position farther than 1 with its rotation axis oriented horizontally.

The axis of rotation of the deburring cutter 110 is set to be the same as the axis of the gear blank 12 held by the loading section 11 when the loading section 11 is at the above-mentioned machining height. ing. Also, when the loading portion 11 is at the machining height, the deburring cutter 1 is set so that the center distance between the gear blank 12 and the deburring cutter 110 is exactly the distance at which the two can properly engage with each other.
Ten horizontal positions of the rotation axis are set. By setting the positional relationship between the loading unit 11 and the deburring cutter 110 as described above, the gear material 12 descending while being held by the loading unit 11 meshes while being sent in the tangential direction of the deburring cutter 110. Becomes
The deburring cutter 110 is configured to be horizontally movable in a direction approaching the virtual axis line 3 or in a direction opposite to the virtual axis line 3 so as to be able to cope with various outer diameters of the gear material 12 to be processed.

As shown in FIG. 2, tailstocks 111 are provided on the machine base 2 for centering and rotating the gear material 12 at both sides of the loading portion 11. Each tailstock 111 has a tailstock shaft 115 which can be advanced and retracted, and the axis of the tailstock 111 coincides with the axis of the gear blank 12 when the loading portion 11 is at the machining height.

Therefore, the loading portion 11 holding the gear material 12 therein falls into the space between the two tailstocks 111 by descending, and the gear material 12 held by the loading portion 11 is It is supplied in the tangential direction of the deburring cutter 110, and the engagement of the two 12, 110 is started. When the loading portion 11 reaches the machining height, the deburring cutter 110 and the gear blank 12 are completely meshed with each other. At this position, the loading portion 11 is stationary, and the tailstocks 111 on both sides respectively hold the tailstock shaft 115. The shaft hole of the gear blank 12 is held from both sides by being extended. Further, the disk cutter 114 descends and sandwiches the edge of the side surface of the gear blank 12. When the deburring cutter 110 is driven from this state, the gear blank 12 is rotated while being held by the tailstock shaft 115, and is chamfered by the deburring cutter 110, and at the same time, the disc cutter 114/1 is rotated.
Deburring is performed by 14. After the completion of the deburring process, the disk cutters 114 are raised and retracted, the tailstock shaft 115 is retracted, and the holding of the shaft hole of the gear blank 12 is released. The gear material 12 is the loading part 11
And the loading portion 11 is raised to the rotation height. In addition, as shown in FIG. 4, the rotation height is set to a sufficient height so that the loading unit 11 at the rotation height does not interfere with the tailstocks 111 when rotating about the virtual axis 3. I have to.

[Shaving device] Next, the gear blank 12
Device 102 that performs the “tooth finishing” process of
Will be described. In the shaving apparatus 102 provided in the gear processing section D, a shaving cutter 112 which is a gear-type tool is disposed at a position farther from the loading section 11 as viewed from the virtual axis 3. The axis of rotation of the shaving cutter 112 is the gear material 12 on the processing side.
Are arranged at an angle of the crossing angle with respect to the rotation axis of the gear material 12. The height of the gear material 12 held by the loading portion 11 when the loading portion 11 is at the above-described processing height is set.
Is set to be the same height as the axial center position.
Further, when the loading portion 11 is at the machining height, the horizontal position of the rotation axis of the shaving cutter 112 is set so that the distance between the gear blank 12 and the shaving cutter is exactly the distance at which proper engagement between the two can be obtained. Have been. By setting the positional relationship between the loading unit 11 and the shaving cutter 112 as described above, the gear material 12 descending while being held by the loading unit 11 meshes while being sent in the tangential direction of the shaving cutter 112. . In addition, this shaving cutter 112
Is configured to be horizontally movable in a direction approaching or in the opposite direction to the virtual axis 3 so as to be able to cope with various outer diameters of the gear blank 12 to be processed.

The shaving cutter 112 is usually formed in the shape of a helical gear, and a fine groove is formed on the tooth surface. The rotation axis of the shaving cutter 112 can be tilted while determining the angle, and the rotation axis of the shaving cutter 112 meshes with the type of the gear material 12 to be machined (smooth gear or helical gear). Makes it possible to tilt to the possible angle.

Also, as shown in FIG.
Tailstocks 113 for centering and rotating the gear blank 12 are installed on the machine base 2 at both side positions on both sides of the frame 1. The tailstocks 113 have a tailstock shaft 115 which can be moved forward and backward, and the axis of the tailstock 113 coincides with the axis of the gear blank 12 when the loading portion 11 reaches the machining height.

Therefore, the loading portion 11 holding the gear material 12 therein falls into the space between the two tailstocks 113 by descending, and the gear material 12 held by the loading portion 11 is The shaving cutter 112 is supplied in the tangential direction, and the meshing of the two 12 and 112 is started. When the loading portion 11 reaches the machining height, the deburring cutter 110 and the gear blank 12 are completely meshed with each other. At this position, the loading portion 11 stops, and the tailstocks 113 on both sides of the tailstock shaft 115 respectively move the tailstock shaft 115. The shaft hole of the gear blank 12 is held from both sides by being extended. When the shaving cutter 112 is driven from this state, the teeth of the gear blank 12 and the teeth of the shaving cutter 112 are meshed and rotated while slipping, and the tooth surface of the gear blank 12 is subjected to shaving. After this processing is completed, the tailstock shaft 115 is retracted, the holding of the shaft hole of the gear blank 12 is released, the gear blank 12 is raised while being held by the loading section 11, and the loading section 11 is moved to the rotation height. Will be raised. The rotation height is set to a sufficient height as shown in FIG. 4, and when the loading portion 11 at the rotation height rotates around the virtual axis 3, it interferes with the tailstocks 113. I will not do it.

As described above, the four loading portions 11 for holding the gear material move up and down while maintaining the same height, so that as shown by the solid line in FIG. The axis of each gear material 12 held by the four loading units 11, the axis of the deburring cutter 110 of the deburring device 101, and the axis of the shaving cutter 112 of the shaving device 102 are all in the same horizontal plane (FIG. 3 on a plane P) indicated by a chain line.

This also means the following. That is, the loading unit 11 descends in the processing unit B,
When the gear blank 12 is supplied to the deburring cutter 110 and meshing is performed, at the same time, the processing unit D
In this case, the loading portion 11 is lowered, and the gear blank 12 is supplied to the shaving cutter 112 to engage with the shaving cutter 112. The reverse is also true. That is, the processing unit B
When the loading unit 11 is lifted up and the gear blank 12 is disengaged from the deburring cutter 110, the loading unit 11 also rises in the processing unit D, and the gear blank 1 is removed from the shaving cutter 112.
2 is released.

In summary, in the processing section B and the processing section D, meshing of the gears 110 and 112 on the apparatus side with the gear blank 12 and release of the meshing are performed at exactly the same timing. This is a simultaneous machining in which one gear material 12 is simultaneously subjected to deburring and the other gear material 12 is simultaneously subjected to shaving.
It means that it can be easily achieved. That is, the device 101
It is not necessary to finely control the start / end timing of the machining by each of the two devices 10 between the time when the meshing is simultaneously performed and the time when the meshing is simultaneously released.
1 (the deburring cutter 110)
And the rotation of the shaving cutter 112) only need to be started and ended.

[Modification] Next, a modification of the embodiment described above will be described. FIG. 10 is a diagram conceptually illustrating the configuration of a modified example in which a gear washing step can also be performed, and FIG. 11 can perform a step of inspecting a gear after finishing teeth. FIG. 12 is a diagram conceptually illustrating the configuration of a modified example in which more steps can be simultaneously performed by a single machine.

In the modification shown in FIG. 10, the processing section C is not set as an idle section, but a cleaning device is provided here to remove chips and dirt remaining on the tooth surface of the gear before shaving. To be removed. That is, the configuration is such that three steps of deburring, cleaning, and shaving can be performed simultaneously.

In the modification shown in FIG. 11, a "teeth finishing" device is provided in the processing section C, and a measuring device is provided in the processing section D, so that the gear after the finishing processing can be inspected. Like that. That is, the configuration is such that three steps of deburring, shaving, and inspection can be performed simultaneously.

In the modification shown in FIG. 12, the number of gear processing sections is set to six (A to F), so that the gear material carried into the apparatus from the processing section A is processed by the processing section B. After performing “deburring of teeth”, performing cleaning in the processing section C, performing “finishing of teeth” in the processing section D, performing further cleaning in the processing section E, and then performing processing in the processing section F. More processes can be performed simultaneously by a single machine, such as measuring and inspecting the latter gear and returning it to the processing section A to carry it out. In this case, the number of the loading units 11 provided in the gear material conveying device is set to six according to the number of the processing units A to F, and the gear material conveying device can rotate while calculating the angle every 60 °. Will be configured. In this case as well, the carry-in port and the carry-out port of the gear blank 12 can be respectively assigned to two adjacent gear processing units. In this way, the gear processing speed can be further increased.

The modifications described above are merely examples, and in fact, countless variations are conceivable. Therefore, by appropriately setting the number of processing units according to the needs of the user and providing a gear combined machining apparatus in which the apparatuses are appropriately combined, it is possible to meet various demands of the user.

Although the embodiments and modified examples of the present invention have been described above, the technical scope of the present invention is not limited to the above-described embodiments, and is apparent from the description in the present specification and the drawings. The present invention widely covers the entire range of technical ideas that are truly intended. For example, a honing device using a gear-type grindstone may be provided as the “tooth finishing” device instead of the shaving device.

[0044]

The present invention is configured as described above.
The following effects are obtained.

That is, as set forth in claim 1, a plurality of gear processing sections are set at equal intervals on a circumference around a virtual axis on the machine base, and a gear material transfer device is provided on the machine base. The gear material conveying device is capable of holding a number of gear materials corresponding to the number of the gear processing units at equal intervals, and sequentially corresponds to the held gear materials to each of the gear processing units. In order to determine the angle, it is configured to be able to rotate in one direction around the virtual axis while determining the angle, and one of the gear processing units is assigned a carry-in port for a gear material, and the gear processing unit adjacent thereto is assigned. Is assigned to the gear material carry-out port, or one of the gear processing units is assigned a dual-purpose port for carrying in and carry out the gear material, based on the port for carrying in the gear material. Gear material transfer The gear processing unit located on the rotation end side of the device is provided with a "teeth deburring" device, and the gear processing unit provided with the "teeth deburring" device is located on the rotation end side of the gear material transfer device. The gear processing unit, which is located at the rotation start end of the gear material transfer device from the port where the gear material is unloaded, is equipped with a "tooth finishing" device, so the gear complex processing device is downsized. ,
The occupied area of the equipment is small. Also, only one device is required to sequentially transport each gear material from the carry-in port to the "deburring" device, from the "deburring" device to the "finishing" device, and from the "finishing" device to the carry-out port. Therefore, the transport device is simplified, which can also contribute to downsizing and cost reduction of the device. Further, the two steps of "deburring" and "finishing" can be performed simultaneously, and the non-machining time is minimized, so that the work efficiency is improved.
Furthermore, since the port into which the gear material is carried in and the port into which the gear material is carried out are arranged at the same location or close to each other, the gear manufacturing line (specifically, the length of the conveyor) can be shortened.

According to a second aspect of the present invention, there is provided the combined gear machining apparatus according to the first aspect, wherein the gear material held by the gear material conveying device is subjected to the processing by the “teeth deburring” device. The rotation axis of the gear material and the rotation axis of the gear material when the gear material held by the gear material transfer device is being processed by the “tooth finishing” device are parallel to the machine base upper surface. Located on the same plane,
Further, in the gear material conveying device, the portion holding the gear material has a first height at which the gear material meshes with the gear on the device side and a second height above the gear, and To be able to move linearly along an axis orthogonal to the table top, and when the portion holding the gear material is at the second height, the rotation and angle of rotation about the virtual axis are Since the indexing is performed, the rotation axis of the gear material is parallel to the top of the machine base when it is subjected to processing by the “teeth deburring” device and when it is processed by the “teeth finishing” device. It is set to be on the same plane, so by holding a plurality of gear materials at the same height in the gear material transfer device, when one gear material is subjected to `` development of teeth '' processing At the same time, the other gear material Is the processing arrangement, i.e., can be achieved easily be configured to perform the simultaneous machining of two steps. In addition, the gear material is slid upwardly to the machine base, which is an empty space, thereby disengaging the gear-type tools of the "teeth finishing" device and the "teeth deburring" device. The gear material transfer device is rotated above the machine base, and the gear material is sequentially sent in the order of the carry-in port → tooth deburring, tooth deburring → tooth finish, tooth finish → carry-out port. In addition, space saving of the entire processing apparatus including the gear material conveying apparatus can be rationally achieved. Also, "Tooth finishing"
In the apparatus and the "teeth deburring" apparatus, a tailstock for centering and rotating the gear material at the time of processing is arranged, but once the gear material is avoided above the machine base, the next gear processing process is performed. Because it is configured to rotate and transport to the
There is no possibility of interference between the gear material and the tailstock during transportation. Therefore, since it is not necessary to retract the tailstock, it is possible to contribute to simplification of the device, reduction in cost, and reduction in cycle time. Furthermore, since the gear material is configured to be engaged with the gears constituting the "deburring" device or the "finishing" device while lowering the gear material, the gear material is supplied to the device-side gear when the gear material is supplied. The gear can be smoothly rotated while meshing with the gears on the side, and the gear material and the gears on the device side can be smoothly meshed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a combined gear machining apparatus according to one embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a front view showing a rotatable state in which a loading unit is at a rotation height.

FIG. 5 is a conceptual diagram showing a processing operation of the gear combination machining apparatus.

FIG. 6 is a side sectional view of the gear material conveying device.

FIG. 7 is a perspective view showing the overall appearance of the gear material conveying apparatus.

FIG. 8 is a front view showing a configuration of a loading unit.

FIG. 9 is a front view showing a state in which a gear material to be sent abuts a gear on the device side and a tooth tip, and a carrier in a loading portion escapes.

FIG. 10 is a diagram conceptually illustrating the configuration of a modification in which a gear cleaning step can be performed.

FIG. 11 is a diagram conceptually illustrating the configuration of a modified example in which a step of inspecting a gear after finishing teeth can be performed.

FIG. 12 is a diagram conceptually illustrating the configuration of a modification in which more steps can be performed simultaneously by a single machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gear combined machining apparatus 2 Machine stand 3 Virtual axis line 4 Gear material conveyance apparatus 101 Deburring apparatus ("Tooth deburring" apparatus) 102 Shaving apparatus ("Tooth finishing" apparatus) A, B, C, D Gear processing section

Claims (2)

[Claims] 1. A plurality of gear processing units are set at equal intervals on a circumference centered on a virtual axis on a machine base, and a gear material conveying device is provided on the machine base to transfer the gear material. The apparatus can hold a number of gear materials corresponding to the number of the gear processing units at equal intervals, and calculates an angle so that the held gear materials correspond to each of the gear processing units sequentially. While being configured to be able to rotate in one direction about the virtual axis, one of the gear processing units is assigned a gear material carry-in port, and the adjacent gear processing unit has a gear material carry-out port. Or a dual-purpose port for loading and unloading gear material to one of the gear processing units, and the end of rotation of the gear material transfer device based on the port for loading gear material. Located on the side A gear processing unit is provided with a "teeth deburring" device. The gear processing unit is located on the rotation end side of the gear material conveying device from the gear processing unit provided with the "teeth deburring" device. A gear processing unit located on the rotation start end side of the gear material transfer device from a port for carrying out the gears, a "tooth finishing" device is provided, wherein the gear is a combined processing device. 2. The gear combination machining device according to claim 1, wherein the rotation of the gear material when the gear material held by the gear material transfer device is being processed by the “teeth deburring” device. The axis and the rotation axis of the gear material when the gear material held by the gear material conveying device is being processed by the “tooth finishing” device are positioned on the same plane parallel to the upper surface of the machine base. Further, the gear material conveying device, the portion holding the gear material, the first height at which the gear material meshes with the gear on the device side, and a second height above it, Rotation about the imaginary axis is performed so that the portion that holds the gear material is at the second height so as to be linearly movable along an axis orthogonal to the upper surface of the machine. Configured to index angles There Te, the gear combined machining apparatus.