JPS60201118A - Automatically coupling joint of testing device - Google Patents

Abstract

PURPOSE:To enable a rotary shaft to be automatically coupled to a rotary unit, by providing a pair of longitudinally movable driving pins, which can hold a connector from its both sides in the peripheral direction, in a joint corresponding to the connector protrusively provided to the periphery in a front end part of the rotary unit. CONSTITUTION:A rotary unit 1 provides to the periphery in its front end part a protrusive connector 2 in plural places at an equal distance in the peripheral direction. A joint 5 is secured by a bolt 6 to a boss 4 secured to the axial end of a rotary shaft 3, and the joint 5 provides in its axial center part a guide hole 5a. The joint 5 provides in its circular periphery each pair of insertion holes 5b in a 180 deg. symmetrical position holding the protrusive connector 2 from its both sides in the peripheral direction. These insertion holes 5b respectively fit a pair of guide bushes 7 in which driving pins 8, 9 are protrudably and retractably supported in the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic coupling joint device for a testing device that is capable of automatically connecting a rotating shaft of the testing device and a rotating body of a machine under test in a detachable manner.

[Prior art]

2. Description of the Related Art Recently, automated testing equipment has been incorporated into manufacturing lines for rotating machines such as automatic transmissions, thereby saving labor. For this reason, it has become necessary to automatically connect the test equipment and the rotating body of the machine under test.

Conventionally, as this type of automatic coupling joint device,
The one disclosed in '-1'i'6931 is summarized as follows.

A fitting part is provided between the axis of the front end of the rotating body of the machine under test and the axis of the corresponding joint side of the test device, where both are fitted and aligned during relative advancement. Due to the relative advancement of the front end of the rotating body and the corresponding outer peripheral position of the joint, they are fitted in the axial direction through the buffer bushing, and torque is generated. A transmission coupling means is provided. Furthermore, a stopper is attached to the front end of the fixed part of the test device so as to protrude and be retractable, and before connection, the stopper is protruded and the joint rotated for positioning is latched to this stopper and held at a predetermined circumferential position. so that the axis of the other part of the coupling means on the joint side coincides with the axis of one part of the coupling means of the rotating body, which is rotated to a predetermined circumferential position and waiting. After that, the joints are connected by relative advancement on the joint side, and the connection detection device detects the completion of the connection between the two, and the test device is started and rotated based on this detection signal to perform the test.

However, in the conventional apparatus described above, the rotating body of the test machine had to be rotated to a predetermined circumferential position and then waited before connection. Further, the stopper had to be protruded, the joint had to be rotated and locked to the stopper to be regulated at a predetermined position in the circumferential direction, and then the two had to be moved relatively forward to connect the two. Furthermore, it is important to use a connection detection device to detect and confirm that the connection between the two connection means has been completed. For this reason, the connection operation is troublesome and time-consuming, and structurally requires stopper means and a connection detection device.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional apparatus described above, and corresponds to the protruding coupling body located 90 degrees outside the front end of the rotating body of the test machine, and the protruding coupling body is attached to the joint of the testing apparatus. A pair of driving bins are provided to sandwich the
Each of these drive bins has a gently inclined end face with the end face protruding and the side facing out, and is normally projected forward by a spring member, and both sides are pushed forward by the relative movement of the above-mentioned joint part. The υ alignment is determined by the fitting part provided at the axial center of the joint part, and the protruding coupling body is received and clamped between the pair of drive bins by the starting rotation of the joint part in a predetermined direction. The rotating bodies are connected and driven to rotate, and regardless of the position of the protruding connecting body of the rotating body in the circumferential direction, the rotating body is automatically moved by moving the joint relatively forward and starting rotation. A test device that is connected and rotationally driven, does not require troublesome operations or a connection detection device, and can perform stable drive tests without causing abnormal noise or vibration in the connection even if acceleration and deceleration are repeated. Embodiment of the Invention Aiming to provide an automatic coupling joint device according to an embodiment of the present invention] FIGS. 1 and 2 show a state before connection of an automatic coupling joint device according to an embodiment of the invention, 2 is a front view, and FIG. 2 is a sectional view taken along the tt-n line in FIG. 1. (1
) is the rotating body of the test machine, which is rotatably supported by a fixed frame (not shown), with a center shaft (1a
) stands out. (2) is protruded and fixed to the front end of the rotating body (1) near the outer circumference, and is fixed at multiple locations in the circumferential direction (
In the figure, these are protruding connectors provided at equal intervals (4 locations at position B). (3) is the rotating shaft of the testing device, (4) is the boss fixed to the shaft end of this rotating shaft, and (5) is this boss (4)K.
The joint is fixed with a bolt (6), and has a guide center hole (5a) in the shaft center, and a corresponding center shaft part (1a).
) is inserted, the alignment with the rotating body (1) is confirmed.

The joint (5) has a chipped shape on both sides, and a pair of insertion holes (5b) are provided near the outer circle at positions that sandwich the protruding connector (2) from both sides in the circumferential direction. It is located at a symmetrical position of 1800 mm. Guide bushes (7) are fitted and fixed into these insertion holes (5b), respectively. One of the pair of guide bushes (7) supports one drive pin (8), and the other supports the other drive pin (9) so as to be protrusive and retractable in the axial direction. (1 is a cap nut that is screwed into the coupling screw ()a) of each guide bush (7) and fixed, and a compression spring 0υ is installed inside, and the drive bin (8), (
9) is normally moved forward to make the tip protrude. (2)
penetrates the guide bushing (7) in the radial direction and inserts into the insertion hole (5b
) part is a detent bottle whose one end is fitted and fixed into the detent groove (5C), and the other end is the drive pin (8+
+ Engages with the retaining grooves (8c) and (9c) of (9),
The drive pins (8) and (9) are prevented from rotating and maintained in a predetermined position in the circumferential direction.

These pair of drive pins (81, (9) are shown in a cross-sectional plan view in Fig. 3. In the figure, as the joint (5) moves forward, the protruding coupling body (2) is moved from both sides in the circumferential direction. The clamps are connected and are in a state of drive rotation in the direction of arrow A. Each drive pin (8
1, the tip surface of (9) is formed into a gently sloped end surface (ab), (9b) from which both corresponding 1lIl are protruded.Thereby, when the joint (5) side moves forward, the protruding connecting body ( No matter where the 2-pin is located in the circumferential direction, the joint (
5) is started and rotated in direction A, the inclined surface (9b) of the drive pin (9) comes into contact with the tip of the protruding coupling body (2), moves backward, avoids it, and then protrudes again, as shown in the figure. Connector (2
) between the drive pin (8) and clamp it from both sides,
It is designed to transmit rotation. Both drive pins (3)
And (9), there is one receiving surface (8a) on the tip side of the corresponding inner part.
) and an inclined pressing surface (9a) are each formed by a notch. In this way, even if there is a certain range of discrepancies in the outer diameter of the protruding connector (2), the protruding position of the drive pin (9) can be automatically adjusted to ensure that it is firmly clamped to the drive pin (8) and stabilized. The rotary torque is transmitted by

The operation of the apparatus of the above embodiment is as follows.

The joint (5) part of the test equipment moves forward and backward relative to the machine under test. The center shaft part (1a) is inserted and the alignment of both is confirmed.

Next, the joint (5) is further advanced to the connecting position. At this time, as shown in FIG.
) and (9), the clamps are connected. Furthermore, even if the protruding connector (2) is at position C shown by the two-dot chain line and the pair of drive pins (8) and (9) are located between them, when the test device is started and rotated, the joint ( 5) starts rotating in the A direction. Then, with a slight negative rotation, the other drive pin (9) comes into contact with the tip of the protruding connector (2) with its inclined end face (pb) and retreats, as shown in Fig. 4, and the subsequent joint (5)
(Due to the rotation of
The receiving surface (8a) of one drive pin (8) is connected to the protruding connector (2).
), and the protruding coupling body (2) is pressed by the inclined pressing surface (9a) when the drive pin (9) returns to protrusion.
are securely clamped, and the rotating body (1) is driven to rotate.

Next, when the rotation test of the machine under test is completed, the connection is severed by retracting the joint (5).

If the outer diameter of the protruding connector (2) is as shown in Figure 3,
If the drive pin (
The protrusion amount of 9) becomes large and the pressing is performed by the inclined pressing surface (9a). Further, when the outer diameter of the protruding connector (2) is large, the amount of protrusion of the drive pin (9) becomes small, as shown by the chain line in FIG. 5, and the pressing is performed by the inclined pressing surface (9a).

When the joint (5) is moved forward for connection, the drive pin (
3) is in a position that matches the protruding connector (2), the drive pin (8) is in a pushed-in state as shown in FIG.

However, due to the starting rotation of the joint (5), the drive pin (8)
passes through the position of this protruding connector (2) and returns to protrude,
Connect the next protruding connector (2) to the drive pin (
9), it is received and clamped as shown in Figure 3, transmitting rotation.

Further, when the joint (5) is moved forward for connection, if the drive pin (9) is in a position that matches the protruding connection body (2), the seventh
It will be pushed in as shown in the figure. However, the fitting (5)
Due to the starting rotation, the state shown in FIG. 3 is reached and rotation is transmitted. In this way, when the joint (5) part moves forward for connection, the drive pin (8) is moved against the protruding connection body (2).

Automatic connection is possible no matter where (9) is located in the circumferential direction.

In the above embodiment, the joint (5) has a rectangular shape lacking both 01lI, but it may have a circular shape.

Further, in the above embodiment, the joint (5) is fixed to the boss (4) with the bolt (6), but it may be formed integrally with the boss portion.

Further, in the above embodiment, the joint (5) side is moved forward and backward for connection and release, but the rotating body (1) side may be moved forward and backward.

Furthermore, in the above embodiment, the rotating body (1) is provided with a protruding connecting body (
Although 2) is provided at four locations, the arrangement is not limited to this, and may be provided at even number locations at equal pitches if necessary.

Furthermore, as means for aligning the rotating body and the joint, in the above embodiment, a center shaft portion (1a) protruding from the rotating body (1) is used.
is provided, and a guide center hole (5a) is provided in the joint (5) so that they fit together, but a guide center hole may be provided in the rotating body and a center shaft portion may be provided in the joint.

〔Effect of the invention〕

As described above, according to the present invention, the rotating body of the machine under test and the joint side of the testing device facing it are fitted into each axial center by the relative advancement of both, and the alignment is confirmed. a protruding coupling body is provided on the outer side of the front end of the rotary body, and a pair of driving pins corresponding to the protruding coupling body and capable of being clamped from both sides in the circumferential direction are provided on the joint, It is attached so that it can be protruded forward and retracted, and is normally kept in a protruding state by a spring member.Both drive pins have their tip ends formed, and the clamping pins have a gently sloped end face with their sides protruding. When the above-mentioned joint portion is relatively advanced and rotated for starting, the protruding connecting body is received and clamped between the pair of drive bins in any relational position, so that the rotating body is attached to the joint. They are easily and automatically connected without the need for troublesome operations or detection devices, and even if acceleration and deceleration are repeated, no abnormal noises or vibrations occur in the connecting parts, and smooth and stable rotational drive can be achieved.

[Brief explanation of drawings]

FIG. 1 is a front view showing an automatic connecting joint device for a trial stitching device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. Figure 1
FIGS. 4 to 7 are enlarged cross-sectional views showing the connection state along the line, and FIGS. 4 to 7 are explanatory diagrams of the operation of the connection part in FIG. 3. FIG. Fig. 5 is a cross-sectional view showing a state in which the drive pins are clamped or connected depending on the size of the outer diameter of the protruding connector, and Fig. 6 is a cross-sectional view showing the state in which one of the drive pins just before connection is protruded at the front end. A cross-sectional view showing a state in which the connecting body is in contact with the connecting body, and FIG. DESCRIPTION OF SYMBOLS 1... Rotating body, la... Center shaft part, 2... Projection connecting body, 3... Rotating shaft, 4... Boss, 5... Joint, 5a... Guide center hole, 7...Guide bush, 8.
... Drive pin, 8a... Inclined end surface, 8b... Receiving surface,
9... Drive pin, 9a... Inclined end surface, 9b... Inclined holding surface, 10... Cap nut, 11... Compression spring,
[... Anti-rotation bottle 0 Note that the same reference numerals in the figures indicate the same or equivalent parts 0 Agent Masuo Oiwa Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (2)

[Claims] (1) In a device for operating tests in which a test machine is directly connected and has one fitting part for careful alignment on the front end of a rotating body, and a protruding connector on the outer periphery of the front end. The rotating body is fixed to the rotating shaft side of this test device and is placed opposite the front end of the rotating body, and the other fitting part for centering is provided at the shaft center. A joint that is fitted into one fitting part of the housing to confirm alignment, and a joint that corresponds to the protruding connector and is attached to the joint so as to be able to protrude forward and retreat, and is normally kept in a protruding state by a spring member. It is equipped with a pair of driving pins for clamping the protruding connecting body from both sides in the circumferential direction to a connected state due to the relative advancement of the joint, and these pair of driving pins clamp the distal end surface. The attachment has a gently sloped end surface with the side exposed,
When the joint is relatively advanced and the pair of driving pins are in any position with respect to the projecting connector, the projecting connector is received between the driving pins by the starting rotation of the joint. The inner side of the clamping part of one drive bin is formed on the receiving surface so as to contact one side of the protruding connector and transmit the driving force, and the inner part of the clamping part of the other driving bin is formed on the receiving surface. An automatic connecting joint device for a testing device, characterized in that the inclined pressing member is formed on a surface, and the pressing member is clamped on the other side of the protruding connector with one of the drive bins. (2) The drive bin is supported so as to be able to move forward and backward within a guide bush fitted into the joint, a cap nut is fitted into the guide bush from the rear, and a compression spring is inserted into the cap nut to move the drive bin backward. An automatic connecting joint device for a testing device according to claim 1, wherein the automatic connecting joint device is adapted to be pressed from above.