JP2647806B2 - Wheel axle automatic assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel set assembling apparatus,
In particular, the present invention relates to an automatic wheelset assembling apparatus capable of automatically assembling a wheelset of uniform quality by setting an axle and wheels.

[0002]

2. Description of the Related Art Conventionally, as a wheel axle assembling apparatus, an apparatus for setting wheels at both ends of an axle, and simultaneously press-fitting the wheels to the axle from both sides by using two press-fitting devices;
The one described in Japanese Utility Model Laid-Open No. 55-179903 is known.

[0003] In Japanese Unexamined Utility Model Publication No. 55-179903, fixed pillars are erected at both ends of a base, and one of these fixed pillars has a double piston type hydraulic cylinder,
On the other side, a fluid pressure cylinder for extraction is mounted.
In addition, two wheel receivers and a moving column are provided between the fixed columns so as to be slidable on the base. The wheel pressed into the axle is held on the end side of a wheel seat provided on the axle via a guide bush, and one end of the axle is connected to the inner piston of a double piston type hydraulic cylinder. One wheel is pressed into the wheel seat from the guide bush by pressing, and the wheel is pressed into the wheel seat from the guide bush by pressing the boss of the other wheel with the outer piston of the double piston type hydraulic cylinder. Press-fitting of wheels is performed.

[0004]

However, the simultaneous press-fitting of two wheels into an axle requires skill, and the press-fitting of one wheel at a time into an axle requires very severe dimensions between the wheels. Is adjusted by an operator operating a press-fit cylinder at the time of press-fitting an axle and a wheel, and dimensional adjustment by pressure adjustment requires a great deal of skill and intuition. In addition, the same applies to the adjustment of the perpendicularity between the axle and the wheels, and these have problems such as the need for a skilled operator and an extremely large number of man-hours.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide an automatic wheel set assembling apparatus capable of saving labor and obtaining a wheel set of uniform quality.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, an automatic wheel set assembling apparatus according to the present invention connects a base, stands provided on both ends thereof, and an upper part of the stand. A frame, a press-fitting device provided at one of the stands, a movable axle holding device provided at a central portion of the base, and a movable wheel holding device provided at both ends of the axle holding device. In a wheel axle assembling apparatus for assembling an axle and a wheel by press-fitting, a stand-side wheel without a press-fitting device receives a press-fitting reaction force by a sleeve abutting a boss portion of the wheel and press-fits the axle with the press-fitting device. On the other hand, the wheel on the stand provided with the press-fitting device receives a reaction force by the axle end bearing set on the sleeve on the other stand-side, and the wheel on the stand side is pressed by the press-fitting device. Press the sleeve in contact with the boss of this wheel, which is set between the devices, to press the wheel into the axle, and measure and adjust the perpendicularity of the axle to the wheel and the centering between the axle and the wheel in the frame between the stands. Axle level detection and adjustment device, and a back gauge detection device for measuring the distance between wheels press-fitted into the axle. The press-fit device detects the press-fit pressure of the cylinder of the press-fit device and switches the press-fit speed. The axle holding device and the wheel holding device respectively set the axle and the wheel to automatically perform axle level detection adjustment, press-fit speed adjustment and back gauge detection, and axle without rotating the axle The wheels can be press-fitted at both ends.

[0007]

The axle holding device holds the axle, and the wheel holding device holds the wheels. Then, the level of the axle is detected and adjusted, and the boss of one wheel comes into contact with the sleeve provided on the stand. Thereafter, the press-fitting speed is switched by a press-fitting device with a speed adjusting mechanism, and the axle is press-fitted into these wheels. Next, the sleeve provided on the wheel holding device is brought into contact with the boss portion of the other wheel by the press-fitting device with the speed adjusting mechanism, switching the press-fitting speed, and measuring the distance between the wheels with the back gauge detecting device. Press-fitting of the wheel and axle is performed, and automatic assembly of the wheel axle is performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic wheel set assembling apparatus according to the present invention will be described below with reference to FIGS. Wheel assembly automatic assembly device 1
Is a base 2, two stands 3 and 4 erected on the base 2, an axle holding device 5, two wheel holding devices 6,
7, two sleeves 8, 9 and an axle level detecting device 1
0, a press-fitting device 11 with a speed adjusting mechanism, and a back gauge detecting device 12.

The base 2 has a rectangular shape made of a channel material or the like. The upper side shown in FIG. 2 is inline: A, the lower side is offline: B, and both ends on the A side in the longitudinal direction of the base 2 are provided. Stands 3 and 4 are erected respectively. And
The upper portions of the stands 3 and 4 are connected by a pipe member 13 as two frames. A sleeve 8 is mounted on the left stand 3 in FIG. 1 in the axial direction (horizontal direction). The sleeve 8 comes into contact with the boss of the wheel 14 and the tip of the axle 15 is inserted into the sleeve 8. It has become so. On the other hand, the right stand 4 in FIG.
Is installed.

The axle holding device 5 is provided near the center in the longitudinal direction of the base 2 and is movable between A and B by a cylinder 16 and is also movable in the axial direction. The axle holding device 5 includes a gantry 17, two ball screws 18 erected on the gantry 17, and an axle clamp portion 1 provided at an upper end of the ball screw 18.
The ball screw 18 is driven by a servo motor 20 provided inside the gantry 17 so that the level of the axle 15 can be adjusted by input data of the axle 15.

An axle mount 21 for holding the axle 15 on the B side before the axle 15 is clamped by the axle holding device 5 is provided on the side of the base 2 on the B side substantially 90 degrees in a vertical plane.
° It is provided so as to be freely rotatable.

The wheel holding devices 6 and 7 are provided between the stands 3 and 4 and the axle holding device 5, respectively.
The side wheel holding device 6 is fixed to the A side. On the other hand, the wheel holding device 7 on the stand 4 side is A,
B and can also be moved in the axial direction. And the wheel holding device 6 on the stand 3 side
A sleeve 8 is attached in the direction of the axis, and the boss of the wheel 14 comes into contact with the sleeve 8 and the tip of the axle 15 is inserted into the sleeve 8. Also, the wheel holding device 6,
Numeral 7 denotes a liftable / lowerable unit based on input data of the wheel 14, a wheel receiver 23, and a claw 25 operated by a cylinder 24.
Is provided so that the wheel 14 is held vertically.

The axle level detecting and adjusting device 10 includes a wheel 14
For measuring the perpendicularity of the axle 15 with respect to the axis and the centering between the axle 15 and the wheel 14, and is provided vertically between the pipes 13
There are provided two linear scales 27 fixed to 3 and 13. The linear scale 27 can be moved up and down. The level of the portion of the axle 15 where the wheel 14 is press-fitted is measured, and adjusted by the axle holding device 5 so that the level of the press-fitted portion is equal. It has become so. By doing so, the perpendicularity of the axle 15 to the wheel 14 is adjusted and held, and the axis of the press-fitting device 11 with the speed adjusting mechanism when the diameter of the axle 15 changes can be aligned with the axis of the axle 15. .

The press-fitting device 11 with a speed adjusting mechanism manages the range of press-fitting by speed, secures a set tightening force, and
This is a device for press-fitting the axle 4 and the axle 15 and is mounted on the right stand 4 on the A side in FIG.

The back gauge detecting device 12 is a device for measuring the interval between the wheels 14 press-fitted into the axle 15, and is provided between the pipe members 13, 13 in parallel with the axis and through a mounting member 28. Length measuring device 2 fixed to 13, 13
9 and sensors 30 provided at both ends in the length direction of the length measuring device 29. The back gauge detecting device 12 can move up and down.

On the left side of the base 2 in FIG. 2 on the B side, a wheel mount 31 on which the wheels 14 are mounted horizontally, and the wheels 14 on the wheel mount 31 are raised vertically and moved to the A side. A wheel erecting device 32 for holding the wheel holding device 6 is provided. The sleeves 8 of the pipe members 13
In a position corresponding to the end face of the shaft axle 33, which is brought into contact with the end face of the sleeve 8, in order to stop the movement of the axle 15 in the axial direction when the wheel 14 held by the wheel holding device 7 is pressed into the axle 15. Is provided. The data of the axle 15 and the wheels 14 are input to a control panel (not shown).

Next, the operation of the automatic wheel set assembling apparatus 1 of the present invention will be described. First, the axle mount 21 is turned to be horizontal, and the axle 15 is mounted on the axle mount 21. Then
The axle holding device 5 on the A side moves to the B side, and the axle 15 is transferred from the axle mount 21 to the axle holding device 5, and the axle 15 is clamped by the axle clamp 19 of the axle holding device 5 and moves to the A side.

Next, when the wheel 14 is placed on the wheel carrier 31, the wheel 14 is raised by the wheel raising device 32, and the wheel raising device 32 moves to the A side. And the wheels 14
Is transferred from the wheel standing device 32 to the wheel holding device 6, and the wheel 14 is held vertically by the wheel receiver 23 and the claw portion 25 of the wheel holding device 6. The wheel holder 2 of the wheel holding device 7
The wheel 14 is held by the hook 3 and the claw 25.

Next, the axle level detecting and adjusting device 10 is operated to lower the linear scale 27, and the two linear scales are brought into contact with the portion of the axle 15 clamped by the axle holding device 5 where the wheel 14 is press-fitted. The feedback control of the servomotors 20 and 20 of the axle holding device 5 rotates the ball nages 18 and 18 to adjust the level so that the level of the axle 27 becomes equal so that the horizontality of the axle 15 is secured (FIG. 4A). reference). Then, the press-fitting device 11 with the speed adjusting mechanism is operated, the cylinder extends toward the axle 15, is inserted into the shaft hole of the wheel 14, and the boss of the wheel 14 contacts the sleeve 8 of the stand 3 (FIG. 4 (b)). reference). When the cylinder further extends and reaches the specified pressure input, the axle 15
And the clamp of the wheel 14 are released. Then, the stroke of the cylinder is controlled by the input data of the length of the axle 15 and the press-fitting speed is controlled while detecting the press-fitting pressure of the cylinder, the tightening force between the wheel 14 and the axle 15 is adjusted, and the axle 15 15 is the wheel 14
And the cylinder stops (see FIG. 4 (c)).

Next, the axle holding device 5 moves to substantially the center of the base 2, and the axle end bearing 33 is placed between the sleeve 8 and the axle 15.
Is inserted. Thereafter, the press-fitting device 1 with the speed adjusting mechanism
The wheel holding device 7 on the side B moves to the side A while the cylinder 1 is reduced (see FIG. 4D). Then, the press-fitting device 11 with the speed adjusting mechanism is operated, the cylinder is extended and presses the sleeve 9, and the wheel holding device 7 is moved to the axle 15
Start moving in the direction. Then, the axle 15 contacts and is fixed to the shaft end bearing 33, and the sleeve 9 presses the boss of the wheel 14 (see FIG. 4E). Then, the length measuring device 29 of the back gauge detecting device 12 descends between the wheels 14 and 14, the interval between the wheels 14 is measured by the sensor 30 and fed back to the press-fitting device 11 with the speed adjusting mechanism to control the press-fitting speed and tighten. The force is adjusted to secure the interval between the wheels 14 with a predetermined pressure, the wheels 14 are pressed into a predetermined position of the axle 15, and the cylinder stops (see FIG. 4 (f)).

The above operations are all performed automatically, and automatic assembly of the wheel set is performed.

[0022]

As described above, in the automatic axle assembling apparatus according to the present invention, the wheel on the stand side, which is not provided with the press-in device, receives the press-in reaction force by the sleeve abutting on the boss portion of the wheel, and the press-in device causes the wheel. The axle is press-fitted. On the other hand, the stand-side wheel provided with the press-fitting device receives a reaction force from the axle end bearing set on the sleeve of the other stand-side, and the press-fitting device causes a gap between the stand-side wheel and the press-fitting device. Press the sleeve in contact with the boss of this wheel and press the wheel into the axle.The frame between the stands has an axle level that measures and adjusts the perpendicularity of the axle to the wheel and the centering of the axle and the wheel. It has a detection adjustment device and a back gauge detection device that measures the distance between wheels pressed into the axle. The press-fitting device detects the press-fitting pressure of the cylinder of the press-fitting device and cuts off the press-fitting speed. Speed adjustment mechanism that automatically adjusts the squareness of the axle to the wheel, the high-precision back gauge dimensions, and the proper axle-to-wheel tightening force without the need for skilled workers. The resulting wheel set can be assembled. In addition, since it is only necessary to set the axle and the wheel only once in the automatic axle assembling apparatus, the burden on a worker handling heavy objects can be extremely reduced, and these operations can be performed without requiring a large-scale apparatus. Therefore, there are excellent effects such as a large cost reduction and a uniform quality wheelset can be obtained by labor saving.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an automatic wheelset assembling apparatus according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is an explanatory view showing a method of assembling an axle and wheels.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel axle automatic assembling device 2 Base 3, 4 Stand 5 Axle holding device 6, 7 Wheel holding device 8, 9 Sleeve 10 Axle level detection adjustment device 11 Press-fit device with speed adjustment mechanism 12 Back gauge detection device 14 Wheel 15 Axle 21 Axle Loading 27 Linear scale 29 Measuring device 30 Sensor 31 Wheel loading 32 Wheel stand-up device 33 Shaft end bearing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Iizuka 2-6-5 Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries, Ltd. Tokyo Design Office (72) Inventor Shigeo Matsumoto Marunouchi, Chiyoda-ku, Tokyo 6-5, East Japan Railway Company (72) Inventor Toshiaki Kaieda 1-6-5 Marunouchi, Chiyoda-ku, Tokyo 1-65 East Japan Railway Company (72) Inventor Toshio Watanabe Marunouchi, Chiyoda-ku, Tokyo 1-6-5 East Japan Railway Company (72) Inventor Masami Tomita 1-6-5 Marunouchi Chiyoda-ku, Tokyo East Japan Railway Company

Claims (1)

(57) [Claims] 1. A base, a stand erected on both ends thereof, a frame connecting an upper part of the stand, a press-fitting device provided on one of the stands, and a central part of the base. A wheel axle assembly device that includes a movable axle holding device and movable wheel holding devices provided at both ends of the axle holding device, and a stand side without a press-fitting device in a wheel axle assembling device that assembles an axle and wheels by press-fitting; The wheel of the wheel receives the press-in reaction force by the sleeve abutting the boss of the wheel and press-fits the axle by the press-fitting device, while the wheel on the stand side provided with the press-fitting device is set on the sleeve on the other stand side. The axle end bearing
By pressing the sleeve in contact with the boss of this wheel set between the wheel on the stand side and the press-fitting device by the press-fitting device, the wheel is pressed into the axle, and the frame between the stands has
It has an axle level detection and adjustment device that measures and adjusts the perpendicularity of the axle to the wheel and the centering of the axle and the wheel, and a back gauge detection device that measures the distance between the wheels pressed into the axle. A speed adjusting mechanism that detects the press-fitting pressure of the cylinder of the device and switches the press-fitting speed is provided. The axle level is automatically detected and adjusted by setting the axle and wheels in the axle holding device and the wheel holding device, respectively. A wheel axle automatic assembling apparatus wherein adjustment and back gauge detection are performed, and wheels can be pressed into both ends of the axle without rotating the axle.