JPS603888B2 - Simultaneous finish rolling equipment for multiple gears - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for simultaneously rolling a plurality of gears having different specifications fixed to a single ball.

Conventionally, such a device is capable of rolling one gear at a time, or when finishing rolling multiple gears with different specifications fixed on a single shaft at the same time. Rolling is performed by driving two shafts, one of which is fixed and the other of which has a master and slave rolling die that can freely rotate, connected by a gear system using a single drive motor, making it troublesome and impossible to change stages. The gear system was complicated, the mechanical efficiency was poor, and the finish was poor.

The present invention relates to an apparatus for simultaneously rolling a plurality of gears of different specifications fixed to a single shaft, which eliminates such conventional drawbacks.
The purpose of the present invention is to provide a rolling device that is efficient, mechanically efficient, and has a good finish without requiring setup changes.

An embodiment of the present invention will be described below with reference to the drawings.

Either one of the left and right frames 4, 5 that sandwich a workpiece in which a plurality of gear materials 2, 3 rough-processed with different specifications are fixed to a single ball 1 is fixed.

In this embodiment, the left frame 5 is fixed. Further, the movable frame 4 is placed on a bed (not shown) so as to be movable forward and backward parallel to the fixed frame 5 by a cylinder 6. Parallel here refers to a direction perpendicular to the axis 10 of the fixed frame 5. A main rolling die 8 is fixed to a ball 7 rotatably supported on the movable frame 4, and a secondary rolling die 9 is rotatably supported on the same axis. A shaft 10 is rotatably supported on one fixed frame 5.
The secondary rolling die 11 is directly opposite the main rolling die 8.
is rotatably supported, and an auxiliary rolling die 12 that directly faces the auxiliary rolling die 9 on the same rotation is mounted on the shaft 10 . The central single shaft 1 sandwiched between the above-mentioned rolling dies is a tailstock 13
It has a structure in which it is supported by the headstock 14 and can be easily set in a rotatable manner. Also, headstock 14
A synchronous electric motor 28 is directly connected to the synchronous motor 28 to enable rotation of the single shaft 1 and the gear blanks 2, 3 during forward movement and return movement. The tailstock 13 and the headstock 14 are fixed on a tapered 15 that is movable in parallel to the fixed frame 5, and are structured so that they can be returned to the center by a spring 16. Next, talking about the structure of the power section, the main rolling die 8
A constant velocity joint 17 is telescopically connected to a main shaft 19 of a main electric motor 18 via universal joints 20 and 21 to a shaft 7 that drives the motor. One shaft 101 is a telescopic constant velocity joint 22
is quickly connected at the universal joint 23, and the universal joint 25 is connected to the clutch 24.
and is directly connected to the oil motor 26. The oil motor 26 is controlled by a hydraulic control unit 27. Next, the operation will be explained.

In the illustrated state, the main motor 18 and the oil motor 26 are initially rotated, and the synchronous motor 26 is rotated initially and when the movable frame 4 is retracted. That is, the main rolling die 7 is rotated to actively rotate the main rolling die 7 via the shaft 7, and the hydraulic cylinder 6 is advanced to move the movable frame 4 forward. The gear material 9 and the gear material 3 are meshed together. At this time, the oil motor 26 rotates the auxiliary rolling screw 12 so that the outer circumferential speed of the opposing gear material 3 matches the peripheral speed of the auxiliary rolling die 12.
,3 are brought into contact with each other. That is, when the main rolling die 7 and the secondary rolling die 9 start meshing with the gear blanks 2 and 3, the single shaft 1 is being rotated by the synchronous motor 28, and the sudden load at the time of the meshing is gear material 2,
Apply rotational torque to the gear materials 2 and 3 in advance so as not to apply rotational torque to the gear materials 2 and 3. In this state, the link 6 further advances the frame 4 a little further and rolling is performed. axis 7 and axis 10
Since these are not interlocked, the finish rolling of the gear blank 3 is performed with the assistance of the oil motor 26. At the stage of final finishing, the hydraulic motor 26 is disconnected from the clutch 24, and the drive source is transmitted from the main rolling die 8 to the gear blank 2. The secondary rolling die 11 is driven by the gear blank 2, and the secondary rolling die 12 and the secondary rolling die 9 are rotated by the gear blank 3 to complete finish rolling of the gear blanks 2 and 3. Next, the cylinder 6 is moved backward, causing the movable frame 4 to move backward. At this time, the synchronous electric motor 28 is rotated to separate the finished gear blanks 2 and 3 from each rolling die while preventing the finished gear tooth surface from hitting the die tooth surface. Table 15 is gear material 2, 3
The moving frame 4 is returned to the mounting position by the spring 16 and stopped, and the movable frame 4 is further retreated to the starting position and stopped. In this state, the rotation of the gear blanks 2 and 3 is stopped and the gear blanks are replaced. As is clear from the above description, in the initial state of finish rolling, one of the two gear blanks is forcibly driven by the oil motor, and in the final finishing stage, the drive is switched to one of the gear blanks.

In this way, since one shaft is actively driven by the oil motor, undue shock is eliminated and the rolling finish is improved. When finish rolling is performed using this method, it is possible to achieve a tight rolling finish even if the specifications of the two gears are different, and it is possible to achieve a highly efficient and highly accurate rolling finish with a simple structure. In addition, the main purpose of a finish rolling machine is to maintain rough machining accuracy and finish the tooth surface roughness to a mirror-like flatness, prevent gear noise, and prevent tooth surface wear, rather than increasing the accuracy of the original bolt. The machine is a complete secondary rolling machine in the final finishing stage, and has excellent machine efficiency, as it does not require setup changes each time, and can finish gears with different specifications on a single shaft, which is highly efficient. It is effective.

[Brief explanation of drawings]

The figures are an operational structure diagram and a hydraulic circuit diagram of an embodiment of the present invention. 1... Single shaft, 2, 3... Gear material, 4... Moving frame, 5... Fixed frame, 7, 10... Axis,
8... Main rolling die, 9... Secondary rolling die, 11.
...Sub-rolling die, 12...Sub-rolling die, 15...
- Taffle, 18...Main motor, 24...Clutch, 26...Oil motor, 28...Synchronous motor.

Claims (1)

[Claims] 1. A fixed frame, a movable frame that moves forward and backward in parallel to the fixed frame, and a plurality of gear materials narrowed between the frames and fixed to a single shaft that can move forward and backward in parallel to the fixed frame. A device rotatably supported on a table, a shaft supported on one of the frames, a main motor driving the shaft, a main rolling die fixed to the shaft, and a slave roller rotatably supported on the shaft. and another one of the frames.
a shaft supported on the shaft, an oil motor that drives the shaft via a clutch, an auxiliary rolling die fixed to the shaft and facing the secondary rolling die, and a auxiliary rolling die rotatably supported on the shaft and facing the main rolling die. A simultaneous finishing rolling device for multiple gears, characterized by having a secondary rolling die. 2. The simultaneous finishing rolling device for multiple gears according to claim 1, which is equipped with a synchronous motor that rotates the single shaft.