JPH017852Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an automatic coupling joint device for a testing device, which allows the rotating shaft of the testing device and the rotating body of the machine under test to be automatically connected detachably.

In recent years, the production of mechanical products has been automated to save labor and increase productivity, but it is also desirable to automate the testing of products that incorporate rotating bodies.

For example, in the past, in the case of automatic transmissions for vehicles, the assembled product was installed in the vehicle, and the product was passed if no defects were found as a result of comprehensive internal combustion engine tests and trial runs. In order to test this automatic transmission with a testing machine for one unit, it is necessary to align both parts and connect them directly with a joint, which requires manpower and takes a lot of time to attach and detach. It had been omitted.

This idea was made to solve these conventional problems.The rotating body of the test machine can be automatically connected to and disconnected from the rotating shaft of the test equipment, which saves labor and allows for direct-coupled testing with high productivity. The purpose is to obtain an automatic coupling joint device for test equipment that can be operated.

The automatic coupling joint device for a test device according to this invention is provided with a center shaft portion at the axis and a plurality of coupling studs near the outer periphery at the front end of the rotating body of the test device. A joint fixed to the shaft is opposed to the front end of the rotating body so that it can be moved relatively forward and backward. This joint is provided with a guide center hole that fits into the center shaft portion for alignment, and a bushing hole that corresponds to the stud. A buffer bushing is fixed in this bushing hole, and when the joint moves relatively forward, the stud is inserted into the buffer bushing and becomes connected. Furthermore, a position regulating stopper is attached to the fixed part of the test device, and is moved forward and protruded before being connected to engage and regulate the rotated joint to a predetermined circumferential position. The studs of the rotating body and the buffer bushing are made to match in the circumferential direction. In addition, an interlocking member is movably held at the rear of the bushing hole of the joint and is normally in the forward position.When the stud is inserted into the buffer bushing, the interlocking member is moved back in contact with this, and this retraction is prevented. A detection switch is used to detect the connection.

FIG. 1 is a longitudinal sectional view showing an automatic coupling joint device according to an embodiment of the invention, showing the state before coupling;
The figure is a front view of the joint of FIG. 1. Reference numeral 1 denotes a rotating body of a test machine such as an automatic transmission, which is rotatably supported by a fixed frame (not shown), and has a center shaft portion 1a protruding from the front end axis. 2 is a pair of connecting studs protruding from the front end of the rotating body 1 near the outer circumference, 3 is a rotating shaft of the testing device, 4 is a joint fixed to the shaft end of this rotating shaft, and It is structured as follows. Reference numeral 5 denotes a boss that is fitted and fixed to the rotating shaft 3, and 6 is a guide member that is attached to the front end of the boss 5 with a bolt 7. A guide center hole 6a is provided, and the axis is on the axis of the rotating shaft 3. When the shaft 1a is inserted, alignment with the rotating body 1 is determined. Reference numeral 8 denotes a support body fitted into the boss 5 and attached by bolts 9, and bushing holes 8a are provided at positions corresponding to the respective connection studs 2. 10
is a buffer bushing fitted into this bushing hole,
It is made of a flexible material with elasticity such as rubber material, and the coupling hole 10a is positioned so that its axis coincides with the coupling stud 2, so that torque can be transmitted without damaging the inserted coupling stud 2, and the test can be carried out. I'm trying to do it. Numeral 11 is a tightening nut that is screwed into the support 8 from the rear and presses and holds the head of the buffer bush 10.

Reference numeral 12 denotes an interlocking member 14 which is supported inside the tightening nut and is pressed by a compression spring 13 so that its collar 12a is normally in contact with the buffer bushing 10.
is a proximity switch attached to a fixed part (not shown) of the test device, and when the test device moves forward, the connecting stud 2 is inserted into the buffer bush 10, and the interlocking member 1
When 2 moves backward against the spring pressure, it operates and issues a signal, detecting that it is in the connected state. The interlocking member 12, the compression spring 13, and the proximity switch 14 serving as a detection switch constitute a connection detection device.

Reference numeral 15 denotes a position regulating stopper which is attached to the fixed part of the testing device and is moved forward and backward to protrude.Before connection, the joint 4 is placed in the protruding position as shown in Fig. 2 and is in a free position in the circumferential direction. By rotating the buffer bushing in the direction of arrow A, the regulating surface 8b formed on one side of the support body 8 comes into contact with the stopper 15, and the center of the buffer bushing 10 is placed at a predetermined circumferential position (vertical position in the figure). be regulated so that

The operation of the apparatus of the above embodiment is as follows. The machine under test is mounted on a test stand (not shown), set at a predetermined axial center height, and a pair of connecting studs 2 are placed at a predetermined circumferential position (vertical position in the figure).
1 and transported to the front of the joint 4 in the retracted position of the testing apparatus, as shown in FIG. At this time, with respect to the axial center height of the rotating shaft 3, the center shaft portion 1a of the rotating body 1
The axial center heights of are kept at the same height on the test stand,
The lateral position of the shaft center is determined by detecting the feeding position of the test stand by a detection device (not shown), and feeding is automatically stopped at a position that corresponds to the lateral axial center position of the rotating shaft 3. ing. In this manner, the axial center of the rotating body 1 and the 3 axes of the rotating shafts of the test apparatus are aligned with each other in the brought-in test machine.

Subsequently, the stopper 15, which is in the retracted position, is moved forward, and the joint 4, which is in the freely rotating position, is rotated by the rotary shaft 3 to a position where the regulating surface 8b abuts. As a result, the center of the buffer bushing 10 coincides with the center of the stud 2. Therefore, when the joint 4 is moved forward by the testing device, first, the guide center hole 6a of the guide member 6 is fitted into the center shaft 1a, and the alignment of both is determined. It is further advanced and each buffer bush 10 fits into its corresponding stud.

Then, as shown in FIG. 3, the interlocking member 12 is retracted, the proximity switch 14 is activated, and the completion of the connection is detected from the signal. As a result, the stopper 15 is moved back and released from contact, and a test run is performed by the testing device.

When the test is completed, the stopper 15 is first projected forward and rotated to the position where the restricting surface 8b of the joint 4 comes into contact with the stopper 15, and the stud 2 returns to the circumferential direction position of the rotating body 1 of the test machine before operation. (in place). The joint 4 is moved back by the test device to the state shown in FIG. 1, and the machine under test is carried out by the test stand.

FIG. 4 is a front view of an automatic coupling joint device according to another embodiment of this invention. Support 17 of joint 16
Each buffer bushing 18 is fitted into each bushing hole 17a from the front side, and the head is fitted with a pair of setscrews 19.
It is tightened and held in place, making it easy to replace. Reference numeral 17b is a regulating surface that is engaged with the protruding stopper 15. The buffer bushing 18 of this joint 16 is shown in cross section in FIG. Buffer bushing 1
8 is made of an elastic flexible material such as rubber material.

In the above embodiment, the test device is moved forward and connected to the machine under test, but the machine under test may be moved forward and connected to the test device side.

Further, in the above embodiment, the regulating surfaces 8b and 17b were provided on the sides of the support body to regulate the predetermined position in the circumferential direction of the joint before connection, and the regulating surfaces 8b and 17b were arranged to come into contact with the stopper 15 that protrudes forward. A regulating hole may be provided in the rear surface of the support member, and the stopper may be engaged with a stopper that projects forward to regulate the support member in a predetermined position.

Furthermore, although the guide member 6 is separated from the boss 5 in the above embodiment, it may be formed integrally with the boss 5. Further, although the supports 8 and 17 are separated from the boss 5, they may be formed integrally.

As described above, according to this invention, the front end of the rotating body of the test device is provided with a center shaft part at the axis and a plurality of connecting studs near the outer periphery, and the rotating body of the test equipment is The fixed joint is opposed to the front end of the rotating body so that it can be moved relatively forward and backward. The joint is provided with a guide center hole that fits into the center shaft portion for alignment, and a bushing hole that corresponds to the stud. By relatively advancing the joint, the stud is inserted and connected to the buffer bushing fixed in the bushing hole. Furthermore, the position regulating stopper attached to the fixed part of the test device is advanced and protruded before the connection, and the joint is engaged and regulated at a predetermined circumferential position, so that the joint is at a predetermined circumferential position. The circumferential position of the stud of the rotating body and the buffer bushing is made to match. Furthermore, when the stud is inserted into the buffer bushing, the interlocking member at the rear of the bushing hole is retracted, and this retraction is detected by a detection switch to detect connection.

This allows the rotating body of the machine under test to be automatically connected to and disconnected from the rotating shaft of the testing device, which has the effect of allowing labor-saving direct operation tests. In addition, if the protruding part of the connecting stud is provided with a threaded part,
Damage to the threaded portion is prevented.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an automatic coupling joint device for a test device according to an embodiment of this invention, and FIG.
3 is a longitudinal sectional view showing the connected state of the joint device of FIG. 1, FIG. 4 is a front view of an automatic coupling joint device according to another embodiment of this invention, and FIG. 5 is a front view of the joint shown in FIG. 4 is a sectional view taken along the - line in FIG. 4. DESCRIPTION OF SYMBOLS 1... Rotating body, 1a... Center shaft part, 2... Connection stud, 3... Rotating shaft, 4... Joint, 5... Boss, 6...
Guide member, 6a... Guide center hole, 8... Support body, 8
a...Connection hole, 8b...Regulation surface, 10...Buffer bush,
DESCRIPTION OF SYMBOLS 11... Tightening nut, 12... Interlocking member, 14... Proximity switch, 15... Stopper, 16... Joint, 17
...Support body, 17a...Connection hole, 17b...Regulation surface, 1
8...Positive Bushiyu. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A test machine is equipped with a center shaft part that projects in the axial direction from the front end axis of the rotating body, and a plurality of connection studs that project in the axial direction and are located near the outer periphery of the front end part for transmitting torque. In a device that is directly connected to the operating test, a joint that is fixed to the rotating shaft of the test device, faces the front end of the rotating body, and is moved forward and backward relative to the rotating body in the axial direction, and the axial center of this joint a guide center hole that is provided and is fitted into the center shaft portion by relative advancement to confirm alignment; a bushing hole that corresponds to the connection stud and is provided in the joint; and a bushing hole that is fixed to the bushing hole; A buffer bush into which the connecting stud is inserted by the relative advancement of the joint, is attached to the fixed part of the test device so as to be able to protrude forward and retreat, and is protruded before the joint is connected to prevent rotation of the joint. A stopper for regulating the engagement at a predetermined circumferential position and matching the circumferential position of the connecting stud of the rotating body and the buffer bushing, which have been set in advance at a predetermined circumferential position; A tightening nut fitted into the rear part of the bushing hole is movably supported in the axial direction within the tightening nut, and is normally kept in the forward position by a spring member, with its front end protruding into the buffer bushing, and the connecting stud An automatic coupling joint device for a testing device, comprising an interlocking member that contacts a coupling stud and is retracted when inserted into a buffer bushing, and a detection switch that outputs a signal and detects a coupled state by the retraction of the interlocking member.