JP2001124147A - CVT belt assembly direction discrimination device - Google Patents

Abstract

An object of the present invention is to provide a CVT belt assembling direction discriminating apparatus capable of discriminating a belt assembling direction with a simple structure without requiring any troublesome work. A belt assembling direction discriminating apparatus of the present invention captures an image of an annular metal belt 3 with a CCD camera 21 from a side,
The detecting unit 23 detects the direction of the step 5 (or the inclination) of the element 2 from the image, and determines whether the direction of the step 5 (the inclination) detected by the determining unit 24 is the predetermined belt assembly direction. I did it. In this way, unlike the case where the direction of assembling the metal belt 3 is determined by using the arrow attached to the metal belt 3 as a clue, in any situation, a process of only imaging a part of the metal belt 3 and further detecting With a simple configuration in which the unit 23 and the determination unit 24 are combined, the mounting direction of the metal belt 3 can be reliably determined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a CVT belt assembling direction discriminating apparatus for judging the assembling direction of an annular belt.

[0002]

2. Description of the Related Art In a transmission for an automobile (vehicle), an annular belt is stretched between a pair of pulleys having variable pulley diameters so that the gear ratio can be changed steplessly by a change in the pulley diameter. There is a belt type CVT (Continuously Variable Transmission).

[0003] Metal belts are generally employed for the annular belt used in the belt type CVT in order to withstand high torque from the engine. Generally, for example, several hundreds of elements 2 formed of plate pieces are formed on an annular band 1 in which ten or more thin steel sheets as shown in FIG.
An annular metal belt 3 configured by fitting (parts fitted into pulley grooves) is used. In the drawing, reference numeral 6 denotes a band groove for band fitting formed on both sides of the element 2 in the width direction.

[0004] The metal belt 3 has a structure in which the curvature easily changes following the variable pulley diameter. Specifically, in each element 2, a step 5 is formed on one side surface located closer to the inner circumference of the belt than the band 1. The step 5 is formed over the inner peripheral end of the belt, and the thickness of the inner peripheral end side of the belt is made thinner than the other elements 2. Also, a slope (not shown) is formed on the same one side surface portion, and similarly, the thickness dimension on the inner peripheral end side of the belt is made thinner than the other element 2 portions. With the step 5 or the inclination (not shown), the element portion forming the inner peripheral side of the metal belt 3 is easily bent in the belt running direction, and the CV
When the diameter of the pulley of T changes, the metal belt 3 travels between the pulleys while bending to conform to the change. Normally, the metal belt 3 has a belt rotation direction specified so that high torque can be efficiently transmitted.

[0005] By the way, in an assembly factory for assembling such a belt type CVT, on a pallet flowing through a line,
2. Description of the Related Art The entire CVT is assembled by sequentially assembling parts of each part of the CVT.

[0006] Usually, the metal belt is assembled by wrapping the pair of pulleys between the pulleys after completing the process of assembling the pair of pulleys to the pallet.

Here, the metal belt is a component that receives high torque from the engine, and thus is susceptible to scratches and the like (for example, if there is a scratch, a lot of stress concentrates on the portion).

[0008] For this reason, in a belt type CVT assembly factory, a metal belt is handled by a manual operation so as not to be damaged, and the set belt mounting direction of the CVT and the designated belt direction are adjusted. Incorporation of metal belts between pulleys has been performed to fit. Specifically, as shown in FIG. 6, an arrow 3a indicating the rotation direction of the belt 3 is attached to a part of the surface of the metal belt 3 in advance, and the worker can use the arrow 3a to indicate the rotation direction of the metal belt 3.
The metal belt 3 is mounted between the pulleys so that the direction of the arrow 3a and the mounting direction of the belt of the CVT are aligned with each other.

[0009]

In the process of assembling the metal belt 3, there is a risk that the metal belt 3 may be erroneously attached to the pulley of the CVT in a different direction (erroneous assembly).

Therefore, it is required to be able to find a wrong set. For this purpose, after assembling the metal belt 3, the CV is visually checked by an operator or captured by a camera using an arrow 3 a indicating the rotation direction of the metal belt 3 as a clue.
It is conceivable to confirm whether the metal belt 3 is properly assembled in the belt assembling direction of T.

However, since the arrow 3a is located on a part of the entire circumference of the belt, it can be seen before the metal belt 3 is assembled.
When mounted on the pulley, it may be hidden by the pulley and become invisible. In addition, the location of the arrow 3a may not be known.

For this reason, if the technique of confirming the belt assembling direction of the metal belt 3 using the arrow 3a as a clue, it is necessary to turn the pulley or the belt until the arrow 3a can be seen from between the pulleys. This is a tedious task. In addition, when the operation of rotating the pulley or the belt is performed by a machine, the burden on facilities is large, and it is necessary to confirm the mounting direction of the metal belt 3 instead.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the CVT belt assembling which can determine the belt assembling direction with a simple structure without any troublesome work. An object of the present invention is to provide a direction determination device.

[0014]

According to a first aspect of the present invention, there is provided a belt assembling direction discriminating apparatus, wherein an image of a part of a ring-shaped belt stretched between a pair of pulleys is picked up by an image pickup unit from the surroundings. The detecting unit detects the step or the inclination direction of the element from the captured image, and the determining unit determines whether the detected step direction is the predetermined belt assembly direction.

That is, the step or the inclination formed on one side of the element not only allows the power to be transmitted efficiently in a predetermined direction of the belt rotation but also follows the pulley diameter in that direction. Since it is formed to give a bending characteristic, the step or inclination direction of the element has a certain regularity with the belt rotation direction. Moreover, since the step is present over the entire circumference of the belt, it can be easily found from any position of the belt.

Therefore, determining the belt assembling direction by using the feature of the step or the inclination is different from determining the belt assembling direction by using the arrow attached to the belt as a clue. Even in such a situation, the belt mounting direction can be reliably determined without the need for a troublesome operation with a simple process in which the process of only imaging the belt portion and the combination of the detection unit and the determination unit are required.

According to a second aspect of the present invention, there is provided a belt assembling direction discriminating apparatus, comprising: a second detecting section for detecting a groove width and an element width of an element to which a band fits from an image picked up by an image pickup section; A configuration including a collating unit for collating the type of the belt attached to the pulley based on the element width is adopted, and the type of the belt attached to the CVT can be collated at the same time.

That is, in the belt, the number of plate members forming the band changes depending on the magnitude of the transmission torque. In the case of an unacceptable transmission torque due to the difference in the number of the plate members, this is dealt with by expanding the element width.

That is, the belt has various types of C due to a difference in the number of plate members forming the band and a difference in the dimension of the element width.
Divided for VT.

Here, the groove width of the element constituting the belt changes according to the difference in the number of plate members forming the band, and the element width also changes according to the difference in the belt width.

Therefore, by comparing the groove width of the element with the groove width of the predetermined belt and comparing the element width with the predetermined element width, it is possible to verify the type of the belt attached to the pulley.

According to a third aspect of the present invention, there is provided a belt assembling direction discriminating apparatus including tension control means for applying an external force to a part of the belt so that the belt portion between the pulleys is stretched. The belt position in the imaging range of the imaging unit that fluctuates is stabilized.

As a result, the position accuracy of the belt portion within the imaging range is improved, and the matching is performed with high accuracy.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in FIGS.

FIG. 1 shows a part of an assembly line for assembling, for example, a belt type CVT. In the figure, reference numeral 10 denotes a long transport path for transporting a pallet 11. In the middle of the transport path 10, there are various stations (only one station A is shown in FIG. 1) for sequentially assembling each part of the belt-type CVT on a common pallet 11. The station A is manually assembled between a pair of pulleys 12 (primary / secondary) having variable groove widths, which are assembled in parallel on the upper surface of the pallet 11 at predetermined intervals, and is shown in FIG. A station where a metal belt 3 (a combination of a band 1 and an element 2 having a step 5 formed on one side) is shown. The metal belt 3
Is the same as the belt structure shown in FIG. 6, and the description thereof will be omitted (the same reference numerals are given to the same parts as the metal belt 3 shown in FIG. 6).

Immediately after the station A, there is a station B for judging the assembling direction of the metal belt 3 attached to the pulley 12, and a belt assembling direction discriminating device 20 of the present invention is installed at this station B. is there.

The belt assembly direction discriminating apparatus 20 will be described. In the figure, reference numeral 21 denotes an image pickup unit, for example, a CCD camera disposed above the transport path 10. The CCD camera 21 is installed above the assembly component (the pulley 12 after the belt is hooked) on the pallet 11 stopped at the station B. The imaging direction 21a of the CCD camera 21 is set downward. Specifically, the CCD camera 21 is arranged downward so as to catch the belt exposed portion 3b of the metal belt 3 exposed from between the pulleys 12 from above. With this, metal belt 3
Is imaged from one side in the width direction (axial direction of the belt 3).

A belt direction detecting section 23 (corresponding to a detecting section) and a belt direction matching section 24 (corresponding to a determining section) are sequentially connected to the CCD camera 21 (discriminating system). The belt direction detector 23 has a function of detecting whether the step 5 of each element 2 is located in the thickness direction of the element 2 from the image of the belt portion captured by the CCD camera 21. The belt pass / fail determination unit 24 has a function of determining whether or not the step direction detected by the belt direction detection unit 23 is the same as the step direction of the element 2 set in advance as the CVT belt assembly direction.

The CCD camera 21 has a band groove width detecting section 25 and a belt collating section 2 in parallel with the discrimination system.
6 are connected in order (collation system). The band groove width detecting section 25 has a function of detecting the groove width of the band groove 4 of the element 2 from the image of the belt portion captured by the CCD camera 21. The belt collation unit 26 calculates the CVT assembled for each pallet 11 from the groove width detected by the band groove width detection unit 23.
Kind of metal belt 3 attached to the seed (metal belt 3 is CVT
(The band thickness and the band width are different depending on the transmission torque required in step (1)).

Reference numeral 27 denotes an image pickup unit, for example, a CCD camera, provided on one side in the width direction of the transport path 10 separately from the CCD 21. The CCD camera 27 is installed on the side of the assembly part (the pulley 12 on which the belt has been hooked) on the pallet 11 as a reference, that is, on the side of the belt exposed portion 3b. The imaging direction 27a of the CCD camera 27 is set to be horizontal. More specifically, the CCD camera 27 is arranged sideways so as to catch the exposed belt portion 3b exposed from between the pulleys 12 from the side. Now, C
The belt portion captured by the CD camera 21 is imaged from different directions (radially outward).

The CCD camera 27 includes a belt width detecting section 28 (corresponding to a second detecting section: configured with the band groove width detecting section 25), a belt collating section 29 (corresponding to a collating section: belt collating section). 26 are connected in sequence (a collation system different from the belt groove width). The belt width detector 28 has a function of detecting the width of the element 2 from the image of the belt exposed portion 3b captured by the CCD camera 27. The belt collation unit 29 has a function of collating the element width detected by the belt width detection unit 25 with the type of the metal belt 3 attached to the CVT type assembled for each pallet 11.

On the opposite side of the conveyance path 10 from the CCD 27, a metal belt 3 stretched between pulleys 12 is provided.
Is provided with an actuator 30 (corresponding to a tension control means) for applying tension to the actuator. This actuator 30
As shown in FIG. 2, for example, a cylinder 31 having an advance / retreat rod 31a which can advance / retreat toward a belt exposed portion 3c opposite to the belt exposed portion 3b;
And a belt presser 31b provided at the tip of the forward / backward rod 31a. Due to the extension operation of the cylinder 31, the exposed portion 3c is pressed from the outside in the radial direction of the metal belt 3. When the pallet 11 stops at the station B and is positioned by a control unit (not shown), the cylinder 31 in a standby state (a state in which the reciprocating rod 31a is contracted) is extended. As the vehicle arrives at the station B, the exposed portion 3c is pressed from the outside by the belt retainer 31b to apply tension to the metal belt 3. By applying the tension, the bent exposed portion 3b is stretched so that the belt position within the imaging range of the CCDs 21 and 27 can be kept constant in any CVT model.

The band type groove width information and element width information set by the CVT necessary for the belt type collation are stored in, for example, a pallet ID memory (not shown) in which the CVT information is input and mounted for each pallet 11. ), From each pallet 11, that is, the CVT to be assembled
The belt collation is performed every time.

With such a discrimination system and a collation system, in the station B, the discrimination of the assembling direction of the metal belt 3 to be assembled to the CVT and the collation of the type of the metal belt 3 can be simultaneously performed. FIG. 3 shows a flowchart for determining the belt assembling direction, and FIGS. 4 and 5 show flowcharts for checking the type of the metal belt 3.

According to these flowcharts, the determination of the belt assembling direction and the verification of the assembling belt will be described.
It is assumed that the pallet 11 which has completed the step of hanging the metal belt 3 between the secondary) arrives at the station B. Then, the pallet 11 stops at the same position and is positioned at the same point.

The controller (not shown) extends the cylinder 31 in the standby state in response to the positioning stop state of the pallet 11. Then, as shown in FIG. 2, the pulley 1 is pulled by the belt retainer 31c at the tip of the extending / retracting rod 31a extending.
The left exposed belt portion 3c exposed from between the two is pressed inward from outside to inside. Thereby, the metal belt 3
Is tensioned, the bent metal belt 3 is stretched, and the belt portion necessary for collation, that is, the right belt exposed portion 3b is positioned at a fixed position within the imaging range of each of the CCDs 21 and 27.

Subsequently, the belt assembling direction discriminating device 20 is operated, and the pass / fail judgment of the assembling direction of the metal belt 3 and the collation of the type of the assembled metal belt 3 are performed.

The pass / fail judgment in the belt assembling direction is performed by the CCD camera 21 as shown in step 1 of the flowchart of FIG. 3 by the pulley 12 as shown in the enlarged view of FIG.
An image of the exposed belt portion 3b exposed from between is taken from the axial direction (side). As a result, an image on the side in the width direction of the metal belt 3 is captured.

Next, the belt direction detecting section 23 detects the step direction of the metal belt 3 from the captured image (step S2).

The detection is performed from a light portion of the image reflected and shined on the metal surface, and a shadow portion of the image which is absorbed in space and becomes a shadow. That is, among the respective portions of the metal belt 3, the width-direction end surface of the band 1 and the width-direction end surface of the element 2 are metal surfaces, so that they become light portions that appear white from light reflection, and conversely, the boundary between the band 1 and the band 1 and the band. Since each gap portion such as a boundary with the groove 4, a boundary between the elements 2 and a step space of the element 2, is a space, it is a shaded portion that appears black. As a result, the step 5 of each element 2 is projected as if it were a black key of a piano, as shown in FIG. 3A or 3B. Here, the step 5 of the element 2
Is closer to one side in the thickness direction of the element 2 as shown in FIG.
The direction of the step 5 can be determined based on whether the portion shaded by the step 5 is on the left or right side. That is, if the step 5 is on the left side, as shown in FIG. 3A, the shadow portion is arranged toward the left side in the thickness direction of the element 1. On the other hand, if the step 5 is on the right side, FIG. As shown in (2), the hidden portion is arranged closer to the right side in the thickness direction of the element 2.

Here, the step 5 in the element 2 is a part that imparts the characteristic of bending while following the pulley diameter in that direction while efficiently transmitting power in the predetermined belt rotation direction. There is a certain regularity between the direction of the step and the direction of rotation of the belt. That is, step 5
Is on the left, the direction of rotation of the metal belt 3 is left,
If the step 5 is on the right side, the rotation direction of the metal belt 3 is on the right. Moreover, since the step 5 extends over the entire circumference of the belt, it is easy to find it from any position on the metal belt 3.

The belt orientation matching section 24 determines the level difference 5
It is determined whether or not the metal belt 3 attached to the pulley 12 is attached in the attaching direction defined by the CVT by using the feature (step S3).

That is, in step S3, the direction of the step (left or right) detected from the captured image is compared with the direction of the step set in the CVT model, for example, as shown in FIG. 3C. . As a result, if there is the exposed belt portion 3b, from any position, in what direction the metal belt 3 is actually assembled with respect to the assembly direction of the metal belt 3 set in the CVT model. I understand.

That is, if the step direction of the captured image is the same as the set step direction, the process proceeds to step S4, where it is determined that the metal belt 3 is mounted in a predetermined mounting direction, and the belt mounting direction is determined. It is determined to be “good”.

If the stepped direction of the captured image is different from the set stepped direction, the process proceeds to step S5, where it is determined that the mounting direction of the metal belt 3 is reversed, and the belt mounting direction is "No". It is determined, and as shown in step S6, an instruction to correct the assembling direction is issued so that the metal belt 3 is replaced at the belt replacement station C provided immediately after the station B.

Therefore, unlike the case where the assembling direction of the metal belt 3 is discriminated by using the arrow as a clue, in any situation, a process of merely imaging the belt portion 3b (part of the metal belt 3), and furthermore, With a simple configuration in which the detection unit 23 and the determination unit 24 are combined, it is possible to reliably determine the CVT belt mounting direction.

On the other hand, the collation of the metal belt 3 is performed by collation of the number of bands and collation of the belt width.

FIG. 4 shows a flowchart for collating the number of bands, and FIG. 5 shows a flowchart for collating the belt width.

First, the flowchart of FIG. 4 will be described. As shown in FIG. 4 (a), the band groove detector 25 detects the boundary between the light part and the shade part of the image captured by the CCD camera 21 as in step S11. Alternatively, the groove width t of the band groove 4 of the element 2 in the belt direction as shown in FIG. 4B is detected.

The types of the metal belts 3 are classified according to the difference in the number of thin steel plates (plates) forming the band 1 and the width of the belt. Specifically, as the number of bands 1 increases and the belt width increases, the metal belt 3 is applied to the CVT required for transmitting a large torque. That is, if the groove width t of the band groove 4 in which the band 1 fits and the width d of the element 2 forming the width direction of the metal belt 3 are detected,
The type of the metal belt 3 attached to the pulley 12 can be seen.

The belt collating unit 26 is provided with the band groove 4
By using the feature of the groove width t, it is checked whether the metal belt 3 attached to the pulley 12 is the metal belt 3 of the set model of the CVT (step S12).

That is, in step S12, the groove width t of the band groove 4 detected from the image is compared with the groove width of the band groove set for the CVT model. Thereby, CV
With respect to the type of the metal belt 3 set for the model of T, it is possible to know what kind of metal belt 3 is actually assembled.

More specifically, if the groove width t of the fetched image is the same as the set band groove width, the process proceeds to step S13, where a regular number of bands (the number of thin steel sheets) suitable for the required transmission torque is used. Is determined to be attached to the CVT. That is, the collation is determined to be “good”.

If the groove width t of the captured image is different from the set band groove width, the process proceeds to step S14, where it is determined that the type of the metal belt 3 to be assembled is different from the difference in the number of bands, and the collation is "No". Is determined. Subsequently, step S1
As shown in FIG. 5, at the belt changing station C located immediately after the station B, an instruction is given to correct a combination difference due to a difference in the number of bands of the belt 3 so that the metal belt 3 of the normal type is changed.

On the other hand, during this time, the comparison of the belt width shown in the flowchart of FIG. 5 is performed.

That is, as shown in the enlarged view of FIG. 1, the CCD camera 27 captures an image of the exposed belt portion 3b exposed from between the pulleys 12 from the outer peripheral direction. Thus, an image on the outer side in the radial direction of the metal belt 3 is captured.

Next, the width d of the element 2 is detected from the captured image by the belt width detector 28 (step S21).

The detection is performed by detecting the boundary between the elongated metal portion and the space portions on both sides sandwiching the elongated metal portion as shown in the enlarged view of FIG.

The belt collation unit 29 calculates the element width d
Utilizing the feature that corresponds to the belt width described above, it is checked whether the metal belt 3 attached to the pulley 12 is the metal belt 3 of the set CVT type (step S22). .

That is, in step S22, the element width d detected from the image is compared with the element width set for the CVT model. Thereby, it is possible to know what kind of width of the metal belt 3 is actually attached to the type of the metal belt 3 set for the model of the CVT.

More specifically, if the element width d of the captured image is the same as the set element width, step S
Proceeding to 23, it is determined that the regular metal belt 3 having a belt width suitable for the required transmission torque is assembled to the CVT. That is, the collation is determined to be “good”.

If the element width d of the captured image is different from the set element width, the process proceeds to step S24,
It is determined that the type of the metal belt 3 to be assembled is different from the difference in the belt width, and the collation is determined to be “No”. Subsequently, as shown in step S25, at the belt changing station C immediately after the station B, an instruction to correct a combination difference due to a difference in the width of the belt 3 is issued so as to change the metal belt 3 of the normal type.

As described above, the CCD camera 21 and the CCD
Based on the image of the exposed belt portion 3b captured by the camera 27, the belt assembly direction can be determined at the same time as the type of the belt attached to the CVT can be checked at the same time.

In addition, when judging whether the belt assembly direction is acceptable or not and judging the belt type, the actuator 30 controls the pulley-1
Since tension is applied to the metal belt 3 stretched between the two, the belt position in the imaging range of the CCD cameras 21 and 27 that fluctuates each time is stabilized depending on the degree of bending of the metal belt 3 stretched. It is possible,
The position accuracy of the belt portion to be compared can be enhanced, and the matching can be always performed with high accuracy.

In the above-described embodiment, an example using a metal belt using an element having a step on one side has been described. However, the present invention is applied to a metal belt using an element having an inclination on one side. You may.

In the above-described embodiment, two CCs are used.
Using a D camera, a part of the metal belt is imaged from the surroundings. However, by changing the direction of one CCD camera, one side in the width direction and the outer peripheral side of the metal belt are sequentially imaged, and sequentially, You may make it collate each part of a metal belt in order for every imaging.

In the embodiment described above, the CVT is manually performed.
Pass / fail of the belt assembling direction of the belt attached to the pulley
Although the example of collating the belt type has been given, the invention is not limited to this.
In an assembly line in which a belt is mounted on a pulley for each CVT by an automatic machine, the pass / fail of the belt mounting direction of the belt and the comparison of the belt type may be similarly performed. In this case, after assembling the belt to the pulley, the pass / fail of the belt assembling direction, even if the belt type is checked, the pass / fail of the belt assembling direction before assembling the belt to the pulley,
The belt type may be checked.

[0068]

As described above, according to the first aspect of the present invention, unlike the case where the direction in which the belt is attached is determined by using the arrow attached to the belt as a clue, the belt can be used in any situation. With a process of only imaging a part and a simple configuration in which a detection unit and a determination unit are combined, it is possible to reliably determine the mounting direction of the belt without requiring any troublesome work.

According to the second aspect of the present invention, in addition to the above-described effects, the type of the belt to be assembled to the CVT can be checked at the same time.

According to the third aspect of the present invention, the position of the belt within the imaging range of the imaging unit that varies can be stabilized each time depending on the degree of deflection of the belt. Position accuracy can be improved, and matching with high accuracy can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a CVT belt assembling direction discriminating apparatus according to an embodiment of the present invention, together with a line that passes a belt over a pair of pulleys.

FIG. 2 is a plan view for explaining an apparatus for applying tension to a belt stretched between pulleys.

FIG. 3 is a flowchart for explaining determination of an assembling direction of a belt.

FIG. 4 is a flowchart for explaining the collation of the number of belt bands.

FIG. 5 is a flowchart for explaining the comparison of the belt width of the belt.

FIG. 6 is a perspective view for explaining a configuration of a metal belt to be assembled to the CVT.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Band 2 ... Element 3 ... Metal belt 3b ... Belt exposed part (part of belt) 5 ... Step 12 ... Pulley 20 ... Belt assembly direction discriminating device 21, 27 ... CCD camera (imaging part) 23 ... Belt direction detection Sections (detection sections) 24: belt orientation matching section (determination section) 25, 28 ... detection section for band groove width, detection section for belt width (second detection section) 26, 29 ... belt for band groove width Collation unit, belt collation unit for belt width (collation unit) 30... Actuator (tension control means) for generating belt tension.

Claims (3)

[Claims] 1. An annular belt which is overlapped in a same direction with a plurality of elements having a step or an inclination on one side, and fitted over the pair of pulleys by fitting the plurality of elements and an annular band. An imaging unit that images a part from the surroundings; a detection unit that detects a step or an inclination direction of the element from the taken image; and whether the detected step or the inclination direction is a predetermined belt assembly direction. A determination unit for determining whether or not the CVT belt is assembled in the direction of assembling the CVT belt. 2. The CVT belt assembling direction discriminating apparatus according to claim 1, further comprising: a second detection unit configured to detect a groove width and an element width of an element in which the band fits from an image captured by the imaging unit. A collation unit for collating a type of a belt attached to the pulley based on the groove width and the element width. 3. The CVT belt assembling direction determining apparatus according to claim 1, further comprising tension control means for applying an external force to a part of the belt so that a belt portion between the pulleys is stretched. CVT belt assembling direction determining device.