JPH0416193Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a clearance measuring device that automatically measures the amount of clearance between a disc spring and a laminated body of a multi-plate clutch.

(Prior art) Multi-disc clutches used in motorcycles, etc.
Clutch guide g as seen in Figures 9 and 10.
It is composed of a disc spring s that is fitted into this in order, a laminate k consisting of a clutch disk d and a clutch plate c, an end plate e that is fitted into the uppermost part, and a snap ring r that prevents these from being pulled out. There is.

By the way, when fitting the laminated body into the clutch guide g mentioned above, the disc spring s
It is necessary to provide a certain clearance δ between the end plate c and the clutch plate c to prevent problems with engine function, but if these are simply fitted, the tolerances of the laminate and the end plate e will overlap. This may cause the clearance amount to exceed the allowable amount range.

For this reason, it is necessary to actually measure the clearance δ between the disc spring s and the clutch plate c, but since it is not possible to directly measure the position after assembly, up until now, a laminated body has been placed inside the clutch guide g. k is assembled, an end plate e whose thickness is known in advance is assembled from above, a snap spring r is fitted, and the laminate k is pressed on top of that to bring the disc spring s and clutch plate c into close contact. A method has been adopted in which a thickness gauge is inserted into the gap created by this between the end plate e and the clutch disk d, and it is determined whether this measured value is within the allowable clearance range. Ta.

Therefore, in the conventional method, if the clearance s is inappropriate, it is time-consuming to rearrange an end plate with an appropriate thickness based on an end plate with a known thickness, and it also requires a lot of time and effort. Since it was done manually using a nest gauge, there was a problem in that it was not possible to achieve sufficient measurement accuracy.

(Purpose) This invention was made in view of the above problems,
The purpose is to provide a new device that can automatically measure the amount of clearance between a disk spring and a clutch plate with high accuracy.

(Means for Achieving the Object) That is, in order to achieve the object, the present invention includes a shaft member that is driven by a drive member to vertically move and rotate, and a shaft member that is attached to the shaft member via a biasing member. and a fluid pressure member that moves in the axial direction in cooperation with the shaft member, and at least three detection members that are attached to the fluid pressure member and that can be inserted into the clutch guide at equal intervals in the circumferential direction. a supporting member supported; a detecting member having a portion at its lower end that engages with a snap spring groove of a clutch guide; Clearance measurement of a multi-plate clutch equipped with a pressing member that presses a laminated body consisting of a clutch plate and a clutch disk incorporated therein, and a detecting member that detects the detection member and the relative movement amount between the pressing member. It's in the device.

(Example) The details of the present invention will be explained below based on the illustrated example.

Figures 1 and 2 show the main parts of the device of the present invention, in which a cylinder 5 is mounted on a support frame 3 provided at the upper end of a column 2 erected on a machine stand 1.
Reference numeral 7 in the figure is a movable support base fixed to the lower end of the rod 6 of the cylinder 5 and moved up and down guided by a guide rail 4 provided on the side of the column 2. A motor 8 fixed here is movable via a clutch 9. It is configured to rotationally drive a piston rod pivotally supported at the lower end of the support base 7.

Reference numeral 13 denotes a cylinder that moves up and down a detection body 20, which will be described later, in cooperation with a piston 11 fixed to the lower end of the piston rod 10. The cylinder 13 rotates integrally with the piston rod 10, and as shown in FIG. A spring 12 is installed between the rod 10 and the rod 10 so as to move up and down due to air pressure flowing in from the intake holes 14, 14.
It is installed through. Reference numeral 16 denotes a support disk 16 that is detachably attached to the lower end of the cylinder 13 via an attachment/detachment mechanism 15.
6 includes three sleeve-shaped detection bodies 20 whose lower ends are inserted into the guide groove _g1 of the clutch guide g.
are arranged at 120° intervals (the third
), the flange portion 21 is slidably supported by the guide bar 18 on the support disk 16 while being biased upward by a coil spring 22 so that the top surface of the flange portion 21 is always in contact with the bottom surface of the support disk 16. .

By the way, the detection body 20 described above is provided with a protrusion 23 extending in the radial direction of the support disk 16 at its lower end, and one side of the outer end of the protrusion 23 has the sixth and seventh parts.
As seen in the figure, it forms a contact surface 24 with the guide groove side end _g2 of the clutch guide g, and this contact surface 2
4, a claw piece 25 that can be fitted into the snap spring groove _g3 from the guide groove _g1 is formed to protrude laterally.

On the other hand, a push rod 27 for pressing the laminated body whose tip is urged by a spring 26 provided inside and protrudes from the lower end of the detection body 20 is inserted into the sleeve-shaped detection body 20, and also has a power adjustment function. The tip of a detection rod 29 is in contact with the upper end of which the nut 28 is screwed, and a detector 30 such as a differential transformer detects the relative displacement between the detection body 20 and the detection rod 29. It is configured so that it can be extracted as an electrical output.

Returning to FIG. 1, reference numeral 31 in the figure is a clutch guide conveyor, and 32 is this conveyor 29.
The cylinders for pushing up the clutch guide are shown, which press the clutch guide g conveyed by the clutch guide g against the workpiece receiving jig 33 provided directly below the detection mechanism.

Next, the operation of the above-described device will be explained.

When the laminate k consisting of the disc spring s, the clutch plate c, and the clutch disc d is assembled into the clutch guide g in the previous assembly process,
The conveyor 31 sends the workpiece directly below the detection mechanism, and then the push-up cylinder 32 presses it against the lower surface of the workpiece receiving jig 33 to position and fix it.

On the other hand, the cylinder 5 at the top of the column 2 starts operating in synchronization with this, lowering the movable support 7 at the lower end of the rod 6, and moving the piston rod 1 pivotally supported there.
0, the tip of the detection body 20 disposed at intervals on the circumference of the cylinder 12 and the support disc 16 is brought into contact with the upper edge of the clutch guide g.

When the motor 8 on the movable support base 7 is operated in this state, the piston rod 10, which has started rotating via the clutch 9, moves the detection object 20 to the clutch guide g via the cylinder 13 and the support disk 16 at its lower end. Spring 12 is moved along the upper edge.
The biasing force causes this to fall into the guide groove _g1 (Fig. 6).

When the detecting body 20 is further moved, the detecting body 20 that has entered the clutch groove g ₁ presses the laminated body k downward by the push rod 27 biased by the spring 26 and moves toward the side edge of the guide groove g ₁ .
It moves to g ₂ , where the claw piece 25 is inserted into the snap spring groove g ₃ and stopped (FIG. 7).

Note that when the detection body 20 is stopped, the piston rod 10 is
The rotation of the motor 8 also stops, but the relative rotation between the motor shaft and the motor shaft that occurs at this time is absorbed by the slippage of the clutch 9, and the motor 8 then idles to some extent and then stops.

When the claw piece 25 of the detection body 20 enters the snap spring groove _g3 in this way, the cylinder 1
Pressurized air is supplied into the chamber 3. As a result, the cylinder 13 raises the detection body 20 via the support disk 16, and moves the claw piece 25 in the snap spring groove _g3 into the eighth position.
It is raised from the position shown by the two-dot chain line in the figure to the position where its upper surface abuts the lower surface of groove _g3 (solid line position in the figure).

Through the series of operations described above, the three detection objects 20
Each of the push rods 27 presses its lower end surface evenly around the periphery of the laminate k to indicate its upper surface level, and the detector 20 brings the claw piece 25 into contact with the lower surface of the snap spring groove g ₃ to indicate the level. Because I will show you,
The amount of relative displacement between the two at each point, that is, the amount of insertion of the disk spring s into the laminated body k, is detected as a deviation value based on a value preset by each detection amount made of a differential transformer, etc. .

Therefore, if each of these values is outside the allowable value, it will be discharged out of the line by a discharge device (not shown) as a defective fitting of the laminate k, and if each value is within the allowable value, each value will be removed. Based on the data output by calculating the average value of , an end plate e having a thickness suitable for this value is selected.

When the series of detection operations described above are completed,
After discharging the pressurized air and lowering the cylinder 14 to separate the claw piece 25 from the lower surface of the snap spring groove _g3 , the motor 8 is reversed to return the detection object 20 to the center of the guide groove _g1 , and finally The cylinder 5 at the upper end of the column 2 is operated to raise the entire detection mechanism.

(Effects) As described above, according to the present invention, a laminated body consisting of a detection member having a portion at its lower end that engages with a snap spring groove of a clutch guide, a clutch plate and a clutch disk incorporated in the clutch guide is used. A pressing member is provided to press, and the amount of clearance between the disc spring and the clutch plate is measured from the relative movement of the two, so the clutch can be assembled by simply moving these members in and out of the clutch guide. The optimal thickness of the end plate to be assembled can be automatically detected during the process.

Moreover, since these pressing members and detecting members are arranged at equal intervals in the circumferential direction of the supporting member,
Not only is it possible to obtain accurate clearance amounts based on the values of each part, but it is also possible to detect assembly defects such as diagonal fitting of the laminate.
The quality of the clutch can be greatly improved.

[Brief explanation of the drawing]

Figures 1 and 2 are a side view and a front view of a device showing an embodiment of the present invention, Figure 3 is a sectional view taken along line X-X in Figure 1, and Figures 4 and 5 show the main parts of the same device. An enlarged side view and a front view, FIG. 6 is an explanatory diagram showing the state in which the detection body is inserted, FIG. 7 is a perspective view showing the state in which the clutch guide is engaged with the clearance groove, and FIG. 9 is an exploded perspective view of the clutch component, and FIG. 10 is a sectional view showing the assembled state. 5... Cylinder, 7... Movable support base, 10...
Piston rod, 13...Cylinder, 16...Support disk, 20...Detection object, 25...Claw piece, 27...
...Pushyarod, g...Clutch guide, s...
...Disk spring, c...Clutch plate, d...Clutch disk, e...End plate, r...Snat spring.

Claims (1)

[Scope of utility model registration request] A shaft member that is driven by a drive member to move up and down and rotate, a fluid pressure member that is attached to the shaft member via an urging member and moves in the axial direction in cooperation with the shaft member, and a fluid pressure member that moves in the axial direction in cooperation with the shaft member. A support member that is attached to the pressure member and that supports at least three detection members that can be inserted into the clutch guide at equal intervals in the circumferential direction, and a lower end that is provided with a portion that engages with the snap ring groove of the clutch guide. a detecting member; a pressing member that is slidably disposed inside the detecting member and is biased by a biasing member to press a stacked body consisting of a clutch disk and a clutch plate incorporated in a clutch guide; A clearance measuring device for a multi-plate clutch, comprising the detection member and a detection member for detecting the amount of relative movement between the pressing member.