JP3688554B2 - Method and apparatus for measuring belt element for continuously variable transmission - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and apparatus for measuring an element of a continuously variable transmission belt, and more specifically, a measuring method for measuring a length of a laminated element before a plurality of elements are laminated in an annular shape and bound by an endless ring, and It relates to the device.
[0002]
[Prior art]
The continuously variable transmission belt is configured by a plurality of elements stacked in an annular shape and assembled and bound to an endless ring so that the elements are not detached from each other. The elements constituting this type of continuously variable transmission belt include a body having both end edges forming a V-plane in contact with a pulley of the continuously variable transmission, and a pair of recesses into which the pair of endless rings are inserted. And a head connected to the body.
[0003]
By the way, each element may have variation in the plate thickness. In addition, a plurality of elements that are distorted or bent may be mixed. In these cases, when a predetermined number of elements (for example, 430 elements) are laminated in an annular shape, the endless ring cannot be inserted into the recess of the laminated element because the laminated element does not have a predetermined circumferential length, or the laminated element Even if an endless ring is inserted into the concave portion, a gap is generated between the elements, and a bundled state cannot be maintained.
[0004]
Therefore, conventionally, prior to assembling the continuously variable transmission belt, an operator manually measures the plate thickness of each part of the element using a micrometer or the like, and eliminates an element with distortion or bending visually. Thereafter, the length of the laminated element was confirmed from the measured plate thickness of each element.
[0005]
However, in the manual measurement of the element thickness by using a micrometer, etc., the operator must measure the thickness of each element one by one. The measurement accuracy may not be obtained. Moreover, even if the number of elements to be stacked is determined based on the plate thickness of each element obtained by the operator's manual work, when each element is stacked in an annular shape, it is accurately matched to the circumference of the endless ring. This is disadvantageous in that the continuously variable transmission belt cannot be assembled with high accuracy.
[0006]
In addition, even if the distortion or bending of the element is judged by visual inspection of the operator, if an oversight or the like occurs, it becomes difficult to accurately match the length of the laminated element with the circumference of the endless ring. There is a disadvantage that the transmission belt cannot be assembled with high accuracy.
[0007]
[Problems to be solved by the invention]
The present invention eliminates such inconvenience, and the present invention can accurately and quickly measure the length of the laminated element, and can easily form a laminated element that matches the circumferential length of the endless ring, thereby providing a highly accurate continuously variable transmission. It is an object of the present invention to provide a method and an apparatus for measuring an element of a continuously variable transmission belt capable of assembling an industrial belt.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, the present invention provides a body positioned on the inner peripheral side when a plurality of annular layers are stacked, and a pair of recesses for mounting a pair of endless rings to maintain the annularly stacked state. The present invention provides a method and an apparatus for measuring an element of a belt for a continuously variable transmission that includes a head that is connected to the body via a head and is positioned on the outer peripheral side when a plurality of layers are annularly stacked.
[0009]
According to the method of the present invention, first, a predetermined number of elements are placed in an arcuate shape and slidable separately along an annular guide groove formed in a predetermined circumferential length, with the body positioned on the inner peripheral side. Then, a setting process for forming a laminated element is performed. Next, a pressing step in which the elements are brought into close contact with each other by pressing the rear end of the stacked element with a pressing member that rotates around the center of the annular guide groove with the tip of the stacked element being stopped at the reference position. Do. Subsequently, when the respective elements to each other is in close contact by the pressing pressure step, said annular guide the center of the groove to detect the rotation angle from the reference position of the pressing member which rotates the shaft, each based on the detection angle element A measurement process is performed to measure the length of the laminated elements in close contact with each other.
[0010]
According to the method of the present invention, a stacking element is formed by placing a predetermined number of elements along the annular guide groove in the setting step, and the leading end of the stacking element is stopped by the pressing step. Then press the rear end. Thereby, each element of a lamination | stacking element closely_contact | adheres and can make this lamination | stacking element the shape close | similar to the bundling state by the said endless ring.
[0011]
When the elements are brought into close contact with each other, the movement of the rear end of the laminated element is stopped. At this time, in the measurement step, first, the angle of movement of the rear end of the laminated element with respect to the reference position is detected with the tip of the laminated element as the reference position and the center of the annular guide groove as the axis. Next, the length of the laminated element is measured based on the detection angle at this time. Thereby, the length of the laminated element can be accurately known, and the length of the laminated element with respect to the endless ring can be confirmed. If the length of the laminated element can be confirmed, for example, the work of increasing or decreasing the number of laminated elements when assembling to the endless ring so as to match the circumference of the endless ring can be performed very easily. An accurate continuously variable transmission belt can be assembled smoothly.
[0012]
Further, in the pressing step of the present invention, a first pressing step for applying a first predetermined load to the rear end of the laminated element, and a second predetermined load for applying a second predetermined load greater than the first predetermined load. And performing a defect detection step of detecting a defect of the laminated element based on an angular difference between the rotation angles in the first pressing step and the second pressing step prior to the measurement step. Is preferred.
[0013]
First, a first predetermined load is applied to the laminated element by the first pressing step, and the rotation angle at this time is detected. Next, a second predetermined load is applied to the laminated element by the second pressing step, and the rotation angle at this time is detected. Since the second predetermined load is larger than the first predetermined load, when a defective element having distortion or bending is mixed in the laminated element, the distortion or bending of the defective element is the first. When the second predetermined load is applied, the correction is made larger than when the predetermined load is applied. Therefore, when defective elements are mixed, a relatively large angle difference occurs in the rotation angle between the first pressing step and the second pressing step.
[0014]
And since the defect of a lamination | stacking element can be detected reliably by the said defect detection process, the lamination | stacking element in which the defect element is mixed can be excluded prior to the assembly | attachment to the said endless ring.
[0015]
Further, the apparatus of the present invention is provided with an annular base fixed to a base, and a predetermined number of elements are arranged on the entire circumference of the base in an arc shape with the body side positioned on the inner peripheral side. Separately, an annular guide groove having a predetermined circumferential length that is slidably mounted to form a laminated element is provided. Further, a stopper that abuts on the tip of the laminated element is fixed to the base across a part of the annular guide groove. Further, a rotating member provided on the same axis as the annular guide groove is rotatably provided with a pressing member that presses the rear end of the laminated element while rotating along the annular guide groove.
[0016]
Then, the pressing member is rotated along the annular guide groove via a rotation shaft, and a rotational drive is applied to apply a predetermined load so that the elements of the laminated element are brought into close contact with each other between the stopper and the pressing member. Angle detection means for detecting the rotation angle of the pressing member with reference to the tip of the laminated element that is in contact with the stopper when the pressing member rotated by the rotation driving means stops due to the close contact of each element And measuring means for measuring the length of the laminated element in which the elements are in close contact with each other based on the rotation angle obtained by the rotation angle detecting means.
[0017]
The apparatus of the present invention forms a laminated element having a shape approximate to that when the belt for continuously variable transmission is formed by mounting a predetermined number of elements in an annular guide groove provided with an annular base. Can do.
[0018]
And as for the lamination | stacking element on a cyclic | annular guide groove, the front-end | tip contact | abuts to the said stopper, and the rear end is pressed by the said press member. Thereby, each element slides in a direction in which the elements are in close contact with each other along the annular guide groove as the pressing member rotates.
[0019]
And, in this way, the rotation angle of the pressing member is detected by the rotation angle detection means while maintaining the laminated element in a shape close to the bundled state by the endless ring, so that a highly accurate detection angle can be obtained. And the length of the laminated element by the measuring means can be measured with high accuracy.
[0020]
Moreover, the apparatus of this invention WHEREIN: The said cyclic | annular guide groove equips the perimeter with the protruding item | line inserted in the recessed part of the said element.
[0021]
When the laminated element is placed in the annular guide groove, the protruding line is inserted into the concave portion of each element. Thereby, when each element is slid along the annular guide groove by the pressing member, each element is prevented from jumping out in the radial direction, and the length of the laminated element can be increased in a highly accurate laminated state. Can be measured.
[0022]
Further, in the apparatus of the present invention, a pressing member that slidably presses the laminated element by providing another annular guide groove corresponding to the laminated element placed in the annular guide groove faces the base. Therefore, it is preferable to be provided so as to be movable up and down.
[0023]
As a result, the laminated element pressed and moved by the pressing member is housed between the annular guide groove and the other annular guide groove, so that the laminated element is prevented from being lifted or protruding, and is laminated with high accuracy. Thus, the length of the laminated element can be measured.
[0024]
In the apparatus of the present invention, the rotation driving unit applies a first predetermined load to the laminated element through the pressing member, and then applies a second predetermined load larger than the first predetermined load to the laminated element. Load control means for controlling so as to apply, and determining a defect in the laminated element based on an angular difference between a rotation angle of the pressing member at the first predetermined load and a rotation angle of the pressing member at the second predetermined angle. It is preferable to provide a defect detection means for detecting.
[0025]
By the control of the load control means, the rotation driving means can sequentially apply a first predetermined load and a second predetermined load larger than the first predetermined load to the laminated elements. And since the defective element is detected based on the angle difference between the pressing members at the first and second predetermined loads by the defect detecting means, it is accurately confirmed that defective elements are mixed in the laminated elements. I can judge.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory longitudinal sectional view showing the configuration of the present apparatus, FIG. 2 is an explanatory plan view showing a part of the apparatus shown in FIG. 1, and FIG. 3 is an explanatory view showing a part of FIG. 4 is an explanatory view schematically showing the operation of the present embodiment, FIG. 5 is an explanatory view showing a part of a continuously variable transmission belt, and FIG. 6 is an explanatory view showing the shape of an element.
[0027]
As shown in FIG. 2, the measuring apparatus 1 of this embodiment shown in FIG. 1 measures the length of the laminated element 2 in a state of being laminated in a substantially annular shape. As shown in part in FIG. 5, the laminated element 2 is integrally bound by endless rings 3 and 4 formed by laminating a plurality of metal plate-like rings to form a continuously variable transmission belt 5. . As shown in FIG. 6, a single element 6 constituting the laminated element 2 is formed by punching a metal plate material, and has a body 7 and a head 9 connected to the body 7 via a neck 8. It has. A pair of recesses 10 and 11 are formed on both sides of the neck 8 by a gap between the body 7 and the head 9, and the endless rings 3 and 4 (see FIG. 5) are inserted into the recesses 10 and 11, respectively. . Both end edges 12 and 13 of the body 7 form a V surface that contacts a pulley of a continuously variable transmission (not shown). The head 9 is formed in a substantially triangular shape, and a pair of inclined edges 15 and 16 are formed on both sides of the head 9 via the top portion 14. Further, a dimple 17 protruding to one side and a concave hole 18 corresponding to the dimple 17 are formed at the center of the head 9.
[0028]
Next, the configuration of the measuring apparatus 1 of the present embodiment will be described. As shown in FIG. 1, the apparatus 1 includes a base 21 having a horizontal table 20 and a columnar base 22 that is fixed upright on the table 20. A through hole 23 is formed in the shaft center of the base 22, and a rotary shaft 24 is rotatably inserted into the through hole 23 via a bearing 25. The rotary shaft 24 passes through the table 20 and is connected to a drive shaft 27 of a motor 26 provided below the table 20. A rotary encoder 28 supported by the table 20 is attached to the rotary shaft 24. The rotary encoder 28 outputs a number of pulses corresponding to the rotation of the rotary shaft 24.
[0029]
As shown in FIGS. 1 and 2, a first annular guide groove 29 on which the element 6 is placed is provided at the upper end portion of the base 22. As shown in FIGS. 1 and 3, the first annular guide groove 29 is attached to the base 22 in close contact with the inner side of the first annular block 30 fixed to the outer periphery of the base 22. The second annular block 31 and the third annular block 32 connected to and supported by the upper end of the rotary shaft 24 and rotating integrally with the rotary shaft 24 are formed.
[0030]
More specifically, as shown in FIG. 3, the element 6 is placed in the first annular guide groove 29 in a standing posture with the body 7 positioned on the inner peripheral side. The first annular block 30 is inserted into a first inclined surface 33 that contacts the inclined end edge 15 located on the lower side of the head 9 of the element 6 and the concave portion 10 located on the lower side of the element 6. The ridge 34 is provided on the entire circumference. The element 6 is regulated from the outside of the head 9 and from the inside of the recess 10 by the first inclined surface 33 and the first ridge 34, so that it is prevented from falling and the upright state can be maintained.
[0031]
As shown in FIGS. 1 and 2, the third annular block 32 is provided with a pressing pin 35 that projects into the first annular guide groove 29. The pressing pin 35 is provided on the third annular block 32 so as to freely advance and retract, and is urged by a spring 36 in the protruding direction. As shown in FIG. 2, the pressing pin 35 contacts the rear end of the laminated element 2 and presses the rear end of the laminated element 2 by the rotation of the rotating shaft 24. Further, as shown in FIG. 2, a stopper 37 that is in contact with the tip of the laminated element 2 is fixed to the outer wall of the base 22.
[0032]
As shown in FIG. 1, a disc-shaped pressing member 38 that is lifted and lowered by a lifting means (not shown) is attached to the upper end of the base 22. The presser member 38 has a second annular guide groove 39 formed at a position facing the first annular guide groove 29. As shown in FIG. 3, the second annular guide groove 39 includes a second inclined surface 40 that comes into contact with the inclined end edge 16 positioned on the upper side of the head 9 of the element 6, and a concave portion 11 positioned on the upper side of the element 6. And the second ridge 41 inserted into the entire circumference. When the pressing member 38 is mounted on the base 22, the element 6 is restricted from moving in the vertical direction. Therefore, when the laminated element 2 is pressed by the pressing pin 35, the element 6 is prevented from jumping out. Is done.
[0033]
Further, the rotary encoder 28 detects the rotation angle of the pressing pin 35 from the number of pulses output from the rotary encoder 28 via the rotation shaft 24, and then determines the length of the laminated element based on the rotation angle. Measuring means (not shown) for measuring is connected. In the present embodiment, a computer (not shown) is used as the measuring means.
[0034]
Next, the measurement of the length of the laminated element 2 by the measuring apparatus 1 of this embodiment will be described. First, the presser member 38 is raised as shown by an imaginary line in FIG. 1, and the first annular guide groove 29 is exposed as shown in FIG. A setting process for placing the number of elements 6 is performed. For example, when the number of the elements 6 corresponding to the circumferential length of the endless rings 3 and 4 is normally 430 in order to form the continuously variable transmission belt 5, 400 elements except for 30 are laminated. To be placed in the first annular guide groove 29. At this time, the pressing pin 35 is positioned at a predetermined position near the stopper 37.
[0035]
Next, as shown in FIG. 1, the pressing member 38 is attached to the laminated element 2 by lifting means (not shown). As a result, the laminated element 2 is held in the space formed by the first annular guide groove 29 and the second annular guide groove 39 so as to be slidable in the circumferential direction while maintaining an upright state.
[0036]
Subsequently, as shown in FIG. 4A, the rotation of the rotary shaft 24 by the motor 26 causes the pressing pin 35 to come into pressure contact with the rear end of the laminated element 2 and is stopped by the stopper 37. Press toward.
[0037]
And as shown in FIG.4 (b), each element 6 of the lamination | stacking element 2 closely_contact | adheres by the press of the press pin 35, and this press pin 35 stops. At this time, the angle at which the pressing pin 35 is moved by the rotation of the rotary shaft 24 is detected by the rotary encoder 28 based on the number of pulses. On the basis of the angle detected at this time, the measuring means determines the stacking element 2 (400 elements 6) shown in FIG. 2 from the angle θ of the trailing end of the stacking element 2 with respect to the tip of the stacking element 2. Measure length a.
[0038]
Thus, since the length a of the laminated element 2 can be measured quickly and accurately, the laminated element 2 can be easily matched with the peripheral length of the endless rings 3 and 4. That is, the length b corresponding to the distance dimension between the front end and the rear end of the multilayer element 2 shown in FIG. 2 is obtained from the circumferential length of the endless rings 3 and 4 for assembling the multilayer element 2 and corresponds to the length. Thus, 30 elements 6 are combined and inserted into the laminated element 2. In this way, even if the laminated elements do not match the circumference of the endless rings 3 and 4, the endless rings 3 and 4 can be easily obtained by recombination of the 30 elements 6 without recombining all the elements 6. 4 can be made to coincide with the circumference.
[0039]
In addition, according to the apparatus 1 of this embodiment, although not shown in figure, the lamination | stacking element 2 in which the defective element with a distortion and the curvature is mixed is detected, and this lamination | stacking element 2 is assembled | attached to the endless rings 3 and 4 It is possible to eliminate it in advance.
[0040]
That is, with reference to FIGS. 1 and 2, in the apparatus 1 of the present embodiment, a load control means (not shown) for controlling the rotational load of the motor 26 is provided. Then, under the control of the load control means, a first predetermined load (for example, 10 kg) is applied to the laminated element 2 through the pressing pin 35, and the rotation angle of the pressing pin 35 is detected by the rotary encoder 28. Subsequently, under the control of the load control means, a second predetermined load (for example, 40 kg) larger than the first predetermined load is applied to the laminated element 2 through the pressing pin 35, and the pressing pin is pressed by the rotary encoder 28. 35 rotation angles are detected.
[0041]
When defective elements having distortion or bending are mixed in the laminated element 2, the second predetermined load is applied to the rotation angle of the pressing pin 35 when the first predetermined load is applied. When this is done, the rotation angle of the pressing pin 35 increases as the defect element is bent or the like is corrected. Therefore, when the first predetermined load is applied and when the second predetermined load is applied, the angle difference of the pressing pin 35 is obtained, and when the difference is larger than the preset angle difference, the stacking is performed. By providing a defect detection means (not shown) that detects an element defect, it is possible to easily detect and eliminate the laminated element 2 in which defective elements having distortion or bending are mixed.
[Brief description of the drawings]
FIG. 1 is an explanatory longitudinal sectional view showing a configuration of an apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory plan view showing a part of the apparatus shown in FIG.
FIG. 3 is an explanatory view showing a part of FIG. 1 in an enlarged manner.
FIG. 4 is an explanatory view schematically showing the operation of the apparatus of the present embodiment.
FIG. 5 is an explanatory view showing a part of a continuously variable transmission belt.
FIG. 6 is an explanatory diagram showing the shape of an element.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Measuring apparatus, 2 ... Laminated element, 3, 4 ... Endless ring, 5 ... Belt for continuously variable transmission, 6 ... Element, 7 ... Body, 9 ... Head, 10, 11 ... Recess, 15, 16 ... Inclined end Rim, 21 ... base, 22 ... base, 24 ... rotating shaft, 26 ... motor (rotation drive means), 28 ... rotary encoder (rotation angle detection means), 29 ... first annular guide groove (annular guide groove), 34 ... 1st protrusion (protrusion), 35 ... pressing pin (pressing member), 37 ... stopper, 38 ... pressing member, 39 ... 2nd annular guide groove (other annular guide grooves).

Claims (6)

When a plurality of rings are laminated, the body is located on the inner peripheral side, and a pair of recesses to which a pair of endless rings are attached to maintain the ring-stacked state is connected to the body. A method for measuring an element of a continuously variable transmission belt comprising a head positioned on the outer peripheral side when a plurality of layers are laminated,
A setting step in which a laminated element is formed by placing a predetermined number of elements in an arc shape and slidable separately along an annular guide groove formed in a predetermined circumferential length so that the body is positioned on the inner peripheral side. When,
A pressing step in which the elements are brought into close contact with each other by pressing the rear end of the multilayer element with a pressing member that rotates around the center of the annular guide groove in a state where the front end of the multilayer element is stopped as a reference position;
When the elements are brought into close contact with each other by the pressing step, the rotation angle of the pressing member rotated around the center of the annular guide groove from the reference position is detected, and the elements are brought into close contact based on the detected angle. And a measuring step for measuring the length of the laminated element in a state. A method for measuring an element of a continuously variable transmission belt. The pressing step includes a first pressing step that applies a first predetermined load to a rear end of the laminated element, and a second pressing step that applies a second predetermined load that is greater than the first predetermined load. Prepared,
2. The defect detection step of detecting a defect of the laminated element based on an angular difference between the rotation angles in the first pressing step and the second pressing step prior to the measuring step. The measuring method of the element of the continuously variable transmission belt described. When a plurality of rings are laminated, the body is located on the inner peripheral side, and a pair of recesses to which a pair of endless rings are attached to maintain the ring-stacked state is connected to the body. A device for measuring an element of a continuously variable transmission belt comprising a head positioned on the outer peripheral side when a plurality of layers are laminated,
An annular base fixed to the base;
An annular guide formed on the entire circumference of the base with a predetermined circumferential length, and a predetermined number of elements placed on the inner peripheral side of the body side in an arc shape and slidable separately to form a laminated element Groove,
A stopper fixed to the base across a part of the annular guide groove and abutting on the tip of the laminated element;
A pressing member that is rotatably connected to a rotation shaft provided on the same axis as the annular guide groove, and that presses the rear end of the laminated element while rotating along the annular guide groove;
Rotating the pressing member to rotate along the annular guide groove via a rotating shaft and applying a predetermined load to the laminated element so as to bring the elements of the laminated element into close contact with each other between the stopper and the pressing member. Driving means;
A rotation angle detecting means for detecting a rotation angle of the pressing member with reference to a tip of the laminated element abutted against the stopper when the pressing member rotated by the rotation driving means is stopped by the close contact of each element;
A measuring device for an element of a belt for continuously variable transmission, comprising: a measuring means for measuring the length of a laminated element in which the elements are in close contact with each other based on the rotation angle obtained by the rotation angle detecting means. . 4. The measuring device for an element of a continuously variable transmission belt according to claim 3, wherein the annular guide groove is provided with a ridge inserted in the recess of the element on the entire circumference. A holding member that slidably presses the laminated element by being provided with another annular guide groove corresponding to the laminated element placed in the annular guide groove is provided to be movable up and down facing the base. 5. The device for measuring an element of a continuously variable transmission belt according to claim 3 or 4. The rotation driving means applies a first predetermined load to the laminated element through the pressing member, and then controls to apply a second predetermined load larger than the first predetermined load to the laminated element. With means,
And a defect detecting unit that detects a defect of the laminated element based on an angle difference between a rotation angle of the pressing member at the first predetermined load and a rotation angle of the pressing member at the second predetermined angle. The measuring device of the element of the belt for continuously variable transmission according to any one of claims 3 to 5.

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