JPH07311122A - Device for testing automatic change gear - Google Patents

Abstract

PURPOSE:To obtain a device for testing automatic change gear which uses input and output shafts corresponding to various kinds of automatic change gears and can be easily coupled with the input and output shafts. CONSTITUTION:A rotating shaft holder which is rotatably supported and driven by a motor is provided with holder pawls for holding output shafts 4 and 5, index grooves (b) for positioning the shafts 4 and 5, and hydraulic cylinders engaged with the grooves (b) and automatic coupling mechanisms for work 1 and uniform-speed machines 6 and 10 are respectively provided at both ends of the shafts 4 and 5. At the same time, phase matching grooves which are engaged with the phase matching pins of output shaft holders are provided on the shafts 4 and 5 and the shafts 4 and 5 are driven by means of hydraulic cylinders which are provided on the sides of the work 1 and uniform-speed machines 6 and 10 and the detachable arms of which are incorporated in the rotating shafts of the output shaft holders.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test device for an automatic transmission such as a vehicle used in a production line or the like.

[0002]

2. Description of the Related Art FIG. 11 is a schematic plan view of a conventional test apparatus for an automatic transmission for a front-wheel drive vehicle, in which 1 is an automatic transmission (hereinafter referred to as a work) to be tested, and a work 1 is a work. It is carried in by the carrying device 21 in the direction of the arrow 22 and set on the work supporting portion 23. Reference numeral 2 is a DC motor corresponding to an actual vehicle engine, 3 is an input shaft whose one end is connected to the DC motor 2 and the other end is connected to the work 1 through the input shaft connecting portion 20, and 4 and 5 are left and right drive shafts. 2 output shafts, 6,
Reference numeral 7 is a constant velocity machine that is connected to the output shaft 4 to make the left and right drives at a constant speed, 8 is a dynamometer (DC generator) whose one end of the rotation shaft is connected to the constant speed machine 7, 10 and 11 are torques. A constant velocity machine connected to the output shaft 5 via the meter 9, 13 is a flywheel connected to the constant speed machine 11 via the disc brake 12, and the flywheel 13 is connected to the other end of the dynamometer 8. , A loop is formed. When the work 1 has a center shaft, various devices 15, 16 such as a constant velocity machine are connected to the center shaft via the center shaft connecting portion 14, and the various devices 1
A dynamometer 17 is connected to 5 and 16, and a dynamometer 17 is connected to a disc brake 19 via a flywheel 18.

In the above structure, the input shaft 3 is automatically connected to the input side of the work 1 via the input shaft connecting portion 20, and the center shaft connecting portion 14 is automatically connected to the center shaft of the work 1. In addition, the output shaft 4,
Connect 5 Here, when the DC motor 2 is rotated,
The work 1 rotates via the input shaft 3 and its output shafts 4, 5
Is transmitted to the dynamometer 8 and the flywheel 13 via the constant velocity machines 6, 7, 10, and 11, and the power is absorbed while reproducing the actual vehicle running load condition. Further, the center shaft side of the work 1 is also connected to the dynamometer 17 and the flywheel 18, and the power is absorbed while reproducing the load condition. Various measurements are performed by the dynamometers 8 and 17 and the torque meter 9, and the disc brakes 12 and 19 are used during a brake test or the like.

FIG. 12 shows a conventional connecting structure of the output shaft 4. The spline part 4a at one end of the output shaft 4 is spline-fitted to the differential side gear 1a of the work 1, and the spline part at the other end of the output shaft 4 is shown. 4b is fitted with the spline portion 6a of the constant velocity machine 6. The output shaft 5 is also the same.

[0005]

However, in the above-mentioned conventional apparatus, the direction of the input shaft 3 is limited to one direction, and it cannot be used for the work 1 in which the direction of the input shaft 3 is different. Further, the output shafts 4 and 5 do not have an automatic connecting mechanism, so that it is necessary to manually attach the left and right output shafts 4 and 5 to the work 1 in advance, which requires time and labor. Further, this attachment is collectively performed at the pre-dressing station, after which the work 1 is placed on a pallet, conveyed to the test apparatus, and returned again. Normally, the number of pallets required was about 20 to 60, and the output shafts 4 and 5 also required the same number. Further, if the spline on the side of the work 1 and the spline on the side of the test device do not match, they cannot be connected, and therefore, various types of output shafts 4 and 5 were required.

The present invention has been made to solve the above problems, and an object thereof is to obtain an automatic transmission test device in which the input shaft and the output shaft can be easily connected.

[0007]

In a test apparatus for an automatic transmission according to claim 1 of the present invention, a rotatable and motor-driven output shaft holder is provided with a plurality of holding portions for holding the output shaft by spring force. At the same time, each indexing groove for positioning each holding portion at a predetermined position is provided, and the first cylinder mechanism that engages with each indexing groove is provided. In addition, the output shaft, both ends of which are automatically connected to the tester side and the automatic shifter side, is provided with a phase matching portion that engages with a phase matching pin provided on the output shaft holder, and the output shaft is connected to the tester side and the automatic transmission. A second cylinder mechanism that drives a detachable arm that is detachably attached to the side is provided in the rotation shaft of the output shaft holder.

A test device for an automatic transmission according to claim 2 is
A pair of left and right supporting portions of the automatic transmission are provided, and a pair of left and right input shafts and driving portions thereof are also provided.

A test device for an automatic transmission according to claim 3 is
Between the main body part, one end of which is spline-fitted to the test equipment side, the sliding part which is slidably fitted to the main body part and whose tip is spline-fitted to the automatic transmission side, and between the main body part and the sliding part. The output shaft is composed of a spring provided in the.

A test apparatus for an automatic transmission according to claim 4 is
A holding portion of the output shaft holder, an indexing groove, a phase matching pin, and a phase positioning plate having the same number of phase positioning holes as the phase matching portion of the output shaft are provided in the connecting portion between one of the output shafts and the dynamometer, A third cylinder mechanism having a phase positioning pin to be inserted into the phase positioning hole is provided, and a coupling phase adjusting portion for adjusting the coupling phase is provided at a coupling portion between one of the output shafts and the dynamometer.

[0011]

According to the present invention, a plurality of output shafts are held by the rotatable output shaft holder, and the selected output shafts are automatically connected to the automatic irregular machine side and the testing device side. Further, the position and phase of the output shaft are accurately maintained, and the attachment / detachment of the output shaft to / from the automatic anomaly side and the testing device side is performed by a detachable arm.

According to the second aspect of the present invention, a pair of left and right supporting portions of the automatic transmission, the input shaft, and the driving portions thereof are provided, and the invention can be applied to an automatic transmission having different input shaft directions.

According to another aspect of the present invention, the output shaft has a main body,
It is composed of a sliding part that slides with this main body part and a spring provided between the two parts. The differential function of the automatic transmission and the function of the spring facilitate the automatic connection between the output shaft and the automatic transmission and the test equipment. To be done.

According to another aspect of the present invention, the number of the phase positioning holes of the phase positioning plate provided on the side of the output shaft testing device is the same as that of the holding portion of the output shaft holder and the phase adjusting portion of the output shaft. By connecting the phase positioning pin to the phase positioning hole at the time of connection with the test apparatus side, the phase of the output shaft is connected at a predetermined position.

[0015]

【Example】

Example 1 Hereinafter, Example 1 of the present invention will be described. FIG. 1 is a schematic plan view of a test apparatus for an automatic transmission according to a first embodiment, in which a pair of work supporting portions 23 are provided symmetrically, and an input shaft 3 of a DC motor 2 is connected via an input shaft connecting portion 20. A left and right pair are provided. 24 is a pair of work support parts 2
3 is a pair of output shaft replacement parts respectively attached to the shafts 3.

FIG. 2 is a partially cross-sectional plan view of the output shaft exchanging portion 24, FIG. 3 is a front view of the output shafts 4, 5, and FIGS. 4 and 5 are a vertical side view and a side view of the output shaft holder 25. In the output shaft holder 25, six output shafts 4 and 5 are supported, and the holder claw 26 is rotatably supported by the rotating shaft 27, and one end thereof is pressed by the spring 28 so that the output shafts 4 and 5 are supported.
The pair of holder claws 26 engages with the grooves 4c and 5c of No. 5 to enable centering and pressure reception of thrust force. Grasping and releasing of the output shafts 4 and 5 by the holder claws 26 is performed by opening and closing the holder claws 26 when the output shaft holder 25 moves in the axial direction. Thus, the output shaft holder 25 can be made compact without requiring a special actuator for grasping and releasing. The spline portion 4b at one end of the output shafts 4 and 5,
5b is fitted to the spline portion of the connecting portion 29 on the side of the test apparatus, and the other spline portions 4a and 5a are connected to the work 1 side via the collet chuck 38. That is, the collet chuck 38 is inserted into the differential side gear 1a, expanded by hydraulic pressure, and connected by surface pressure.

Reference numeral 30 denotes a pulse-controlled motor, and the motor 30 and the rotary shaft 25a of the output shaft holder 25 are connected by a belt 31. The rotating shaft 25a is a support frame 32.
The output shaft holder 25 is rotatably supported by a motor 30 to a predetermined position so as to selectively index the output shafts 4 and 5 corresponding to the model of the work 1. The motor 30 is also supported by the support frame 32, and the support frame 32 is movable on the support base 33 in the left and right directions in FIG. 2 by the hydraulic cylinder 34. They are exchanged and usually moved to the right out of the way during tests. The final indexing accuracy is ±
It is necessary to secure 0.05 mm. For that purpose, the output shaft holder 25 is provided with the indexing groove 25b, and the hydraulic cylinder 35 supported by the support frame 32 is provided with the indexing pin 35.
A is provided, and the indexing pin 35a is engaged with the indexing groove 25b to perform accurate indexing.

Further, the output shaft holder 25 allows the output shafts 4, 5
In order to prevent the phase shift in the rotation direction of the output shafts 4 and 5 when grasping the above, the phase adjusting grooves 4e and 5e are provided in the flange portions 4d and 5d of the output shafts 4 and 5 and provided in the output shaft holder 25. The phase matching grooves 4e and 5e are inserted into the phase matching pin 25c to fix the phase. Further, a hydraulic cylinder 36 is provided in the rotary shaft 25a of the output shaft holder 25, an oil passage 25d is connected to the hydraulic cylinder 36, oil is taken in and out of the hydraulic cylinder 36, and the piston 36a is moved. The detachable arm 37 connected to is also moved to move the connecting portion 29 on the side of the test apparatus so that the output shafts 4 and 5 can be exchanged. By adopting the shaft core lubrication system as described above, the detachable arm 37 can be moved in a very small space, the turning radius of the output shaft holder 25 can be suppressed to 80 mm, and the longitudinal direction can also be suppressed to 335 mm.
The plane space of the entire test apparatus can be reduced. Further, since the shaft core oil supply system is used, the stroke of the hydraulic cylinder 36 can be increased, and the output shafts 4 and 5 can be replaced without requiring special movement on the test device side. The details of the connecting portion 29 are the same as in the third embodiment.

When replacing the output shafts 4 and 5, the oil passage 2
Oil is fed into 5d, the detachable arm 37 is moved through the piston 36a, and the connecting portion 29 is moved. At this time, the output shafts 4, 5 also move, so that the output shafts 4, 5 are disconnected from the work 1 and the connecting portion 29, and the output shaft holder 25 is rotated by the motor 30 to correspond to the new work 1 model. The output shafts 4 and 5 are selected and the detachable arm 37 is returned to the original position so that the new output shafts 4 and 5 are connected to the connecting portion 2.
9 and work 1 are automatically connected.

By using the output shaft exchanging unit 24 shown in FIGS. 2 to 5, a variety of works 1 having different types of output shafts 4 and 5 are automatically handled by a single testing device to perform a test. be able to. That is, in the case of the conventional pre-dressing system, the number of output shafts 4, 5 corresponding to the number of pallets is required, but in this system, for example, six output shafts are required, and the pre-dressing personnel is not necessary. Further, as described above, the function of exchanging the output shafts 4 and 5 can be obtained without increasing the space on the test apparatus side. Further, since it has the precision indexing function and the phase adjusting function, the splines can be smoothly fitted to the output shafts 4, 5 and the test apparatus side and the work 1 side. Further, since the output shafts 4 and 5 are grasped by the spring 28, it can be grasped accurately even when the power is off.

Second Embodiment In the first embodiment, the spline portion of the differential side gear 1a of the work 1 and the output shafts 4 and 5 are connected by the collet chuck method. In this case, the differential side gear 1a and the collet chuck portion 38 have only surface pressure. , The output will not be transmitted accurately, and the collet chuck 3
No. 8 had a short life. FIG. 6 (a),
(B) shows the configuration of the output shafts 4, 5 according to the second embodiment on the side of the differential side gears 1a, 1b of the work 1;
The sliding parts 4g, 5g having the spline parts 4a, 5a at the tips are inserted into the ends of the f, 5f, and the spline parts 4h, 5h and the sliding parts 4g, 5g provided inside the body parts 4f, 5f.
The spline parts 4i and 5i provided in the above are fitted. Reference numeral 4j is a retaining projection. A spring 39 is provided between the body portions 4f and 5f and the sliding portions 4g and 4g. In addition, spline portions 4a and 5a are formed at the other ends of the main body portions 4f and 5f.

Next, the automatic connecting operation between the differential side gears 1a and 1b and the output shafts 4 and 5 will be described. FIG. 6 (a) shows a state before the connection. When the output shafts 4, 5 are moved forward here, the spline portions 4a, 5a and the differential side gears 1a, 1 are shown.
If the teeth of the spline portion of b are in phase, the two are automatically connected. However, since the phases of the teeth of the spline portions of the differential side gears 1a and 1b differ for each work 1, they often do not match. In this case, when the spline portions 4a, 5a come into contact with the differential side gears 1a, 1b, the sliding portions 4g, 5g resist the spring 39 and the main body portions 4f, 5f as shown in FIG. 6B. It will be in a state of being inside.

At this time, when the output shafts 4 and 5 are slowly rotated in the same direction, for example, if the spline portion 5a and the spline of the differential side gear 1b are fitted, the differential side gear 1a will move to the output shaft 4 by the differential function. Rotate in the opposite direction, and the spline portions 4a are coupled in phase with each other. If both are not connected, both spline parts 4
a and 5a are both connected to the differential side gears 1a and 1a by the spring 39.
The diff side gears 1a and 1b, which are in a state of being pressed against b and have strong friction therebetween, are connected to the spline portions 4a and 5a.
Diffside gear 1 that rotates in the same direction as and has less friction
a and 1b rotate in opposite directions and are coupled in the same manner as above.
Hereinafter, similarly to the above, the differential side gears 1a and 1b having the stronger friction are also coupled.

In the second embodiment, the differential side gear 1
The spline parts of a and 1b and the spline parts 4a and 5a of the output shafts 4 and 5 are smoothly fitted to each other, and slippage does not occur between them, so that the life of the automatic coupling mechanism can be extended. it can.

Third Embodiment FIG. 7 is a schematic plan view of an automatic transmission test apparatus according to a third embodiment, in which 49 is a coupling phase adjusting unit provided between the constant velocity machine 11 and the flywheel 13. It is composed of a coupling with a power lock embedded. Reference numeral 44 denotes a phase positioning unit connected to the constant velocity machine 7. FIG. 8 shows a half cross-sectional view of the output shaft connecting portion, and the output shafts 4 and 5 are connected to the connecting portion 29 on the side of the test apparatus. This structure will be described in detail. Reference numeral 29a is a connecting portion main body, one end of which is an output shaft 4, 5
The spline parts 4b and 5b are fitted with a spline, and the ball 29b is inserted into a groove provided on the side of the spline part. The cylindrical part 29c is movably fitted to the outer periphery of the ball 29b, and the spring 29d is formed between the spline part 4b and the connecting part body 29a. Is provided. Reference numerals 41 and 43 also denote connecting portions, which are integrally connected by bolts 42. The other end of the connecting portion main body 29a is spline-fitted into the connecting portion 43 to connect the connecting portion main body 29a and the connecting portion 41. A spring 40 is provided between them. Here, when the detachable arm 37 presses the cylindrical portion 29c as in the first embodiment, the cylindrical portion 29c compresses and moves the spring 29d, and then the portion including the output shafts 4 and 5 compresses the spring 40. Then, the output shafts 4, 5 are disconnected from the work 1 side and the connecting portion 29.

FIG. 9 is a front view of the output shaft exchanging portion according to the third embodiment, which is similar to the first embodiment. Figure 10
(A), (b) shows the front view and side view of the phase positioning part 44, 45 is a phase positioning plate attached to the rotating shaft 7a of the constant velocity machine 7, and the phase positioning plate 45 has, for example, 10 or the like. A phase positioning hole 46 is provided to position the positioning hole 4
Bushes 47 are fitted to the respective 6's. A hydraulic cylinder 48 has a phase positioning pin 48a. In this case, the output shaft holder 25 is also arranged so as to support 10 output shafts 4 and 5 at equal intervals, and the indexing grooves 25b,
The phase matching pin 25c and the phase matching grooves 4e and 5e are also 10
Equally distributed.

In the above construction, the output shafts 4, 5 and the tester side cannot be automatically connected using the differential function as in the second embodiment. Therefore, it is necessary to make the phases of the output shafts 4, 5 and the connecting portion 29 coincide with each other so that the automatic connection can be smoothly performed. Therefore, the number of output shafts 4 and 5 of the output shaft holder 25 and the phase matching grooves 4e and 5e are set.
Also, the phase positioning plate 45 having the same number of phase positioning holes 46 as the number of the phase adjusting pins 25c is attached to the output shaft system on the test apparatus side, and the phase positioning pins 48a are connected by the hydraulic cylinder 48 when connecting with the output shafts 4 and 5. Is inserted into the bush 47 of the phase positioning hole 46, and the phases of the output shafts 4 and 5 and the spline portion of the connecting portion 29 are made to coincide with each other to connect them. After the connection, the phase positioning pin 48a is retracted so that the phase positioning plate 45 can freely rotate.

On the other hand, the test equipment side connected to the output shafts 4, 5 forms a closed loop, and it is necessary to adjust the coupling phase. Therefore, a coupling phase adjusting unit 49 is provided so that the left and right output shafts 4 and 5 can be coupled at an optimum phase.

In the third embodiment, since the test device side of the output shafts 4, 5 is a closed loop, the coupling phase adjusting section 49 is provided so that the coupling phases of the output shafts 4, 5 can be adjusted. In addition, the phase positioning plate 4 is provided on the side of the output shafts 4 and 5 on the testing device.
5 is attached, and the phase positioning pin 48a is inserted into the phase positioning hole 46, so that the phase on the testing device side can be made accurate and automatic connection with the output shafts 4 and 5 can be smoothly performed.

[0030]

As described above, according to claim 1 of the present invention, a plurality of output shafts are held in the output shaft holder which is rotationally driven by the motor, and the selected output shafts are tested by the automatic irregular machine and tested. Since it is automatically connected to the device side, the output shaft corresponding to various automatic transmissions can be automatically connected.
Further, since it has a position indexing function and a phase adjusting function of the output shaft, the automatic transmission side and the testing device side can be connected smoothly. Further, since the second cylinder mechanism is provided inside the rotary shaft of the output shaft holder, it is possible to make the structure compact.

According to the second aspect of the present invention, since the left and right pairs of the supporting portion of the automatic transmission, the input shaft, and the driving portions thereof are provided, it is possible to test the automatic transmission having different input shaft directions.

According to the third aspect of the present invention, the output shaft is constituted by the main body portion, the sliding portion which slides on the main body portion, and the spring provided therebetween, and the differential function of the automatic transmission and the spring. With the function of, the output shaft can be smoothly connected to the automatic transmission side and the test device side.

According to the fourth aspect, since the phase positioning plate is provided on the tester side of the output shaft and the number of the phase positioning holes is the same as that of the holding portion of the output shaft holder and the phase adjusting portion of the output shaft, By inserting the phase-positioning pin into an arbitrary phase-positioning hole, the phase on the test device side can be accurately determined, and the connection with the output shaft can be reliably and smoothly performed. Further, since the connection phase adjusting unit is provided, the connection phase of the left and right output shafts can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a test device for an automatic transmission according to a first embodiment.

FIG. 2 is a partial cross-sectional plan view of an output shaft replacement unit according to the first embodiment.

FIG. 3 is a front view of the output shaft according to the first embodiment.

FIG. 4 is a vertical sectional side view of the output shaft holder according to the first embodiment.

FIG. 5 is a side view of the output shaft holder according to the first embodiment.

6A and 6B are a vertical sectional front view before coupling of an output shaft and a vertical sectional front view during coupling according to a second embodiment.

FIG. 7 is a schematic plan view of an automatic transmission test apparatus according to a third embodiment.

FIG. 8 is a semi-longitudinal sectional view of a connecting portion between an output shaft and a test apparatus according to a third embodiment.

FIG. 9 is a front view of an output shaft replacement unit according to a third embodiment.

FIG. 10 is a front view and a side view of a phase positioning unit according to a third embodiment.

FIG. 11 is a schematic plan view of a conventional device.

FIG. 12 is a front view of a conventional output shaft connecting portion.

[Explanation of symbols]

 1 ... Work 2 ... DC motor 3 ... Input shaft 4, 5 ... Output shaft 4a, 4b, 5a, 5b ... Spline part 4c, 5c ... Groove 4e, 5e ... Phase matching groove 4f, 5f ... Main body part 4g, 5g ... Sliding Moving part 8 ... Dynamometer 23 ... Work support part 24 ... Output shaft exchanging part 25 ... Output shaft holder 25a ... Rotating shaft 25b ... Indexing groove 25c ... Phase adjusting pin 26 ... Holder claws 28, 39 ... Spring 29 ... Connecting part 30 ... Motor 35, 36, 48 ... Hydraulic cylinder 35a ... Indexing pin 37 ... Attachment / detachment arm 44 ... Phase positioning part 45 ... Phase positioning plate 46 ... Phase positioning hole 48a ... Phase positioning pin 49 ... Connection phase adjusting part

Front page continuation (72) Inventor Minoru Matsumoto 2-1-117 Osaki, Shinagawa-ku, Tokyo Stock company Meidensha

Claims (4)

[Claims] 1. An automatic transmission set to an automatic transmission support portion is connected with an input shaft drive portion via an input shaft, a left and right output shafts are connected to the automatic transmission, and the left and right output shafts are connected to a dynamometer. In the automatic transmission testing device connected to both ends, the output shaft holder, which is rotatably supported and rotated by the motor, engages the groove of the output shaft by spring force and holds the output shaft in an equiangular manner. Providing multiple in arrangement,
The output shaft holder is provided with each indexing groove for positioning each holding portion at a predetermined position, and a first cylinder mechanism for engaging with each indexing groove for positioning is provided. A mechanism for automatically connecting to the automatic transmission side is provided, and a phase matching portion that engages with a phase matching pin provided on the output shaft holder is provided on the output shaft, and the output shaft is on the testing device side and the automatic irregular machine side. A test apparatus for an automatic transmission, characterized in that a second cylinder mechanism for driving a detachable arm that is detachably attached to the output shaft holder is provided in the rotation shaft of the output shaft holder. 2. A test apparatus for an automatic transmission according to claim 1, wherein a pair of left and right automatic transmission supporting portions are provided, and a pair of left and right input shafts and input shaft driving portions are also provided. 3. An output shaft is spline-fitted to the main body, the main body having a spline portion for spline-fitting to the test device side at one end, and the main body to be slidably fitted to the main body, and spline-fitted to the automatic transmission side at the tip. The automatic transmission test apparatus according to claim 1 or 2, wherein the sliding section has a spline section, and a spring provided between the main body section and the sliding section. 4. The holding portion of the output shaft holder, the indexing groove, the phase adjusting pin, and the same number of phase positioning holes as the phase adjusting portion of the output shaft are equiangularly arranged in the connecting portion between one of the output shafts and the dynamometer. A phase positioning plate is provided, and a third cylinder mechanism having a phase positioning pin to be inserted into the phase positioning hole when connecting the output shaft and the testing device side is provided, and either one of the output shaft and the dynamometer is connected. The automatic transmission test apparatus according to any one of claims 1 to 3, characterized in that a coupling phase adjusting section for adjusting a coupling phase is provided in the section.