TWI470200B - Tire inspection apparatus - Google Patents

Description

Tire detecting device

The present invention relates to a tire detecting device, and more particularly to a device for detecting an offset of a tire.

With the rapid development of technology, more and more home appliances with tires that can automatically walk on the ground have appeared on the market, such as sweeping robots that can move and clean the ground. This kind of sweeping robot is gradually popular in the market because of its high practicability and ability to automatically clean the ground.

Conventional sweeping robots typically have a plurality of tires and a plurality of shafts corresponding to the tires, and the tires are respectively rotated along the shafts to enable the sweeping robot to move on the ground through the rotation of the tires. Therefore, in the manufacturing process of the sweeping robot, the offset between each tire and its corresponding rotating shaft must be regulated, otherwise the sweeping robot will not walk smoothly, increase the wear of the tire, and reduce the life of the tire.

The present invention provides a tire detecting device that can be used to detect an offset of a tire.

The present invention provides a tire detecting device for detecting an offset of a tire of a test article. The tire detecting device comprises a carrying base, a supporting platform, at least one sensing unit and a fixing component. The carrier base has a bearing surface, and the support platform is disposed on the carrier base and protrudes from the bearing surface. The product to be tested is placed on the support platform, and the tire is positioned above the bearing surface without contacting the bearing surface and the supporting platform. The sensing unit is disposed on the carrier base and located beside the support platform. The at least one sensing unit includes a bracket, at least one line sensor mounted on the bracket, and at least one ball. The ball is rotatably disposed in a sensing end of the at least one line of the sensor And used to contact one side plane of the tire, wherein a rotating axis of the tire passes through the side plane and does not pass the ball. When the tire rotates, the side plane presses the line sensor and drives the ball to rotate. The fixing component is located above the bearing surface and is used to fix the product to be tested.

Based on the above, the present invention can detect the tire offset for the tire on the product to be tested through the linear sensor disposed on the sensing unit; in addition, the sensing side of the linear sensor is provided with a ball, so The tire is in contact with the side plane of the tire during operation without wear.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

[First Embodiment]

Please refer to FIG. 1, which illustrates a tire detecting device 10 according to a first embodiment of the present invention. The tire detecting device 10 is configured to detect the offset of the tire 61 of a test article 6, and the test object 6 can be a sweeping robot, a remote control car, or other device that can move by the tire 61. Furthermore, the tire 61 of the test article 6 has a two-sided plane 612 and a rotational axis 611, and the rotational axis 611 passes through the center of the two-sided plane 612.

The tire detecting device 10 includes a carrying base 1, a supporting platform 2, a plurality of sensing units 3 and a fixing assembly 4. The carrier base 1 is a platform having a bearing surface 11 on which a guiding track 111 can be disposed, and the sensing unit 3 is mounted on the guiding track 111 to guide the sensing unit 3. The supporting platform 2 and the fixing component 4 are disposed on the bearing surface 11 of the bearing base 1 , wherein the supporting platform 2 protrudes from the bearing surface 11 and is used for placing the product to be tested 6 , so the supporting platform 2 can support the product to be tested 6 Offset from the bearing surface 11 such that the height of the test article 6 relative to the bearing surface 11 is a height H.

After the test object 6 is placed on the support platform 2, the tire 61 of the test article 6 will be located above the load-bearing surface 11 and will not contact the load-bearing surface 11 nor touch the support platform 2. Thus, when the tire 61 of the test article 6 enters the running state, the tire 61 does not contact the bearing surface 11 and the support platform 2 to be idling to avoid the rotation of the tire 61 touching the bearing surface 11 or the support platform 2 The product to be tested 6 moves relative to the support platform 2, causing the product to be tested 6 to fall.

The sensing unit 3 is disposed on the carrying base 1 and movably mounted on the guiding rail 111. The guiding rail 111 can be disposed beside the supporting platform 2, and thus the sensing unit 3 is also located beside the supporting platform 2. The sensing unit 3 can move along the guiding track 111 relative to the carrying base 1 , wherein the operator can control the movement of the sensing unit 3 by electronic control or manually move the sensing unit 3 . When the sensing unit 3 is moved in an electronically controlled manner, the carrier base 1 may have a power source (not shown) such as a cylinder or a motor, and the sensing unit 3 may be moved by driving of the power source.

With the relative movement between the sensing unit 3 and the carrying base 1, the position of the sensing unit 3 can be adjusted according to different sizes of the test object 6 so that the sensing unit 3 can perform the different sizes of the test object 6 The detection of the tire 61 allows the tire detecting device 10 to detect the tires 61 of the plurality of types of the test articles 6. Therefore, the scope of application of the present invention is not limited to a single test item 6 (for example, a cleaning robot).

Each sensing unit 3 includes a bracket 31 and a plurality of line sensors 32 mounted on the bracket 31. The sensing unit 3 is connected to the carrier base 1 through the bracket 31, and the length of the bracket 31 is substantially equal to the height H of the support platform 2. In addition, the line sensor 32 can be electrically connected to a control unit 5, and the control unit 5 can be used to receive and analyze the offset data measured from the line sensor 32. Furthermore, the settings of the tire detecting device 10 can also be adjusted by the control unit 5. In addition, the control unit 5 can be a computer, but the invention is not limited thereto.

2 is a perspective view showing the detection of the tire detecting device of FIG. 1. Referring to FIG. 1 and FIG. 2, each of the line sensor 32 includes a hollow tube body 321, an elastic member 322, and a sensing rod 323. The hollow tube body 321 has an opening 321A at one end and the other end. A bottom surface 321B. The elastic member 322 is, for example, a spring or a spring piece, wherein one end of the elastic member 322 is connected to the bottom surface 321B of the hollow tube body 321 and is accommodated inside the hollow tube body 321, and the other end of the elastic member 322 is connected to the sensing rod. 323. Further, the sensing rod 323 can extend beyond the hollow tubular body 321 through the opening 321A of the hollow tubular body 321 .

In this way, the sensing rod 323 can be extended or retracted from the hollow tubular body 321 to cause the sensing rod 323 to compress the elastic member 322, or the elastic member 322 applies the elastic force to the sensing rod 323, so that the sensing rod 323 is hollow. The tube body 321 moves away. In addition, the sensing unit 3 further includes a ball 35, and the sensing rod 323 has a sensing end 323A, wherein the ball 35 is rotatably disposed in the sensing end 323A and can contact the side plane 612 of the tire 61. When the rotating tire 61 is pressed against the line sensor 32, the side plane 612 contacts the ball 35 and drives the ball 35 to rotate to prevent the sensing rod 323 from interfering with the rotation of the tire 61 and preventing the rotating tire 61 from damaging the sensing rod. 323.

In this embodiment, the number of the sensing units 3 is two, and the supporting platform 2 is disposed between the two sensing units 3. In addition, each sensing unit 3 can have two number of line sensors 32, and each sensing unit 3 can have two balls 35, wherein the two line sensors are The heights of 32 with respect to the bearing surface 11 are different from each other. Thereby, the offset of the tire 61 at different positions on the side plane 612 can be measured. In addition, the present invention does not limit the number of the sensing unit 3, the line sensor 32, and the balls 35. For example, the number of the sensing units 3 may be only one, and the number of the line sensor 32 and the balls 35 may also be individual. Just one.

The fixing component 4 is disposed on the carrier base 1 and is used for fixing the product to be tested 6 placed on the support platform 2. In this embodiment, the fixing component 4 includes at least Two fixing members 41 are disposed on both sides of the supporting platform 2, and the test object 6 can be clamped from both sides. Thereby, the fixing component 4 can fix the product to be tested 6 on the support platform 2, so that the product to be tested 6 does not vibrate due to the rotation of the tire 61, and the accuracy of the detection is affected.

Referring to FIG. 2 and FIG. 3 together, these drawings illustrate the process of the sensing unit 3 detecting the tire 61. When the tire 61 of the test article 6 is to be detected, the test object 6 is first placed on the support platform 2, and the movement of the sensing unit 3 is controlled by the control unit 5 so that the sensing unit 3 approaches the tire 61 to be detected. And the tire 61 is caused to compress the line sensor 32 of the sensing unit 3 such that the elastic member 322 is previously compressed for a stroke.

Thereafter, the sensing unit 3 is stopped from moving. At this time, the tire 61 rotates, and the balls 35 contact the side plane 612 of the tire 61 and are not passed by the rotation axis 611, that is, the balls 35 are not located at the center of the side plane 612. When the tire 61 is not perpendicular to the rotation axis 611, the tire 61 is caused to be displaced, so that the tire 6 may oscillate when the tire 61 is rotated. As such, the side plane 612 of the tire 61 intermittently urges the line sensor 32, i.e., the sensing rod 323 will reciprocate. Further, since the elastic member 322 is previously compressed by the tire 61 for a stroke, the tire 61 and the ball 35 can be kept in contact when the tire 61 is rotated.

When the elastic member 322 is compressed, the line sensor 32 can know the offset amount of the tire 61 based on the amount of compression of the elastic member 322. In detail, since the tire 61 intermittently presses the line sensor 32, the control unit 5 can calculate the offset amount of the tire 61 in accordance with the change in the amount of compression of the elastic member 322 with time, in which the compression of the elastic member 322 is performed. The more severe the amount change, the larger the offset amount of the tire 61, and the more the tire 61 needs to be positioned and adjusted.

In the present embodiment, in the same sensing unit 3, the balls 35 mounted on the two line sensors 32 are in contact with the first position of the side plane 612 of the tire 61, respectively. 613 and a second position 614, wherein an angle θ can be formed between the line connecting the first position 613 and the second position 614 and the horizontal line (not labeled), and the horizontal line can be parallel to the bearing surface 11. Further, the angle θ may be 45 degrees, but the invention is not limited thereto.

[Second embodiment]

Referring to FIG. 4, a tire detecting device 20 according to a second embodiment of the present invention is illustrated. The tire detecting device 20 of the second embodiment has the same function and the similar structure as the tire detecting device 10 of the first embodiment described above, but the difference between the tire detecting devices 20 and 10 is that the sensing unit 3 further includes a position fine adjustment mechanism. 33, which is disposed between the bracket 31 and the line sensor 32.

In view of the above, the position fine adjustment mechanism 33 can adjust the relative position between the line sensor 32 and the tire 61 so that the line sensor 32 can be adjusted to match the tires 61 of different sizes, so that the tire detecting device 20 can detect different sizes. Tire 61. In addition, the position fine adjustment mechanism 33 may have a power source (not shown) such as a cylinder or a motor, and is controlled by the control unit 5 such that the position fine adjustment mechanism 33 adjusts the line between the line sensor 32 and the tire 61 by means of electronic control. Relative position. Of course, the position fine adjustment mechanism 33 may also have no power source to allow the operator to manually operate the position fine adjustment mechanism 33.

[Third embodiment]

Referring to FIG. 5, a tire detecting device 30 according to a third embodiment of the present invention is illustrated. The tire detecting device 30 of the third embodiment has the same function and the similar structure as the tire detecting device 20 of the second embodiment described above, but the difference between the tire detecting devices 30 and 20 is that the sensing unit 3 further includes a lifting mechanism. 34, which is disposed between the bracket 31 and the carrier base 1, and connects the bracket 31 and the carrier base 1.

The lifting mechanism 34 can adjust the height H of the line sensor 32 relative to the carrying surface 11. Therefore, the lifting mechanism 34 can adjust the line sensor 32 in the vertical direction. The position is such that the line sensor 32 can detect the tires 61 of different radii. In addition, the lifting mechanism 34 may have a power source (not shown) such as a cylinder or a motor, and is controlled by the control unit 5, so that the lifting mechanism 34 adjusts the height of the line sensor 32 relative to the bearing surface 11 by electronic control. H. Of course, the lifting mechanism 34 may also have no power source, and the operator can manually operate the lifting mechanism 34.

[Fourth embodiment]

Please refer to FIG. 6, which illustrates a tire detecting device 40 according to a fourth embodiment of the present invention. The tire detecting device 40 of the fourth embodiment has the same function and the similar structure as the tire detecting device 30 of the third embodiment described above, but the difference between the tire detecting devices 40 and 30 is that the supporting platform 26 can be a lifting platform, and The height of the tire 61 relative to the bearing surface 11 can be adjusted. As such, the support platform 26 can raise the product to be tested 6 to an appropriate height to facilitate the sensing unit 3 to perform the detection of the tire 61.

It is further explained that when the tire 61 of the product to be tested 6 has a large diameter, the product to be tested 6 can be raised by the support platform 26, so that the tire 61 can be idling, thereby preventing the tire 61 from touching the bearing surface 11. Affecting the detection result, it is even more preventable that the test article 6 falls due to the contact between the rotating tire 61 and the bearing surface 11.

In addition, at least one of the support platform 26 and the carrier base 1 may have a power source (not shown) such as a cylinder or a motor, and the support platform 26 and/or the carrier base 1 may be electrically connected to the control unit 5. In this way, the operator can control the lifting and lowering of the support platform 26 through the control unit 5. Of course, the support platform 26 and the carrier base 1 may also have no power source, and the operator can also manually operate the lifting and lowering of the support platform 26.

In summary, the tire detecting device of the present invention can be used to detect a home appliance having a tire and capable of automatically walking, using a linear sensor disposed on the sensing unit. Products, such as sweeping robots. In this way, when the home appliance product is just manufactured, or when the tire of the home appliance product is abnormal, the tire detecting device of the present invention can detect the offset of the tire to confirm whether the offset is normal, and thereby determine whether the tire is to be adjusted. Positioning. Thus, the present invention can help maintain the quality of the manufactured home appliances and assist maintenance personnel in the maintenance of the tires.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention. Therefore, the equivalent changes of the present invention and the contents of the drawings are all included in the protection of the present invention. Within the scope, it is combined with Chen Ming.

10, 20, 30, 40‧‧‧ tire inspection devices

1‧‧‧ carrying base

11‧‧‧ bearing surface

111‧‧‧Guided track

2. 26‧‧‧Support platform

3‧‧‧Sensor unit

31‧‧‧ bracket

32‧‧‧Line sensor

321‧‧‧ hollow tube

321A‧‧‧ openings

321B‧‧‧ bottom

322‧‧‧Flexible components

323‧‧‧Sensing rod

323A‧‧‧ Sense end

35‧‧‧ balls

33‧‧‧Location fine-tuning mechanism

34‧‧‧ Lifting mechanism

4‧‧‧Fixed components

41‧‧‧Fixed parts

5‧‧‧Control unit

6‧‧‧Test items

61‧‧‧ tires

611‧‧‧Rotating axis

612‧‧‧ side plane

613‧‧‧ first position

614‧‧‧ second position

Θ‧‧‧ angle

H‧‧‧ Height

1 is a perspective view of a tire detecting device according to a first embodiment of the present invention.

2 is a perspective view showing the detection of the tire detecting device of FIG. 1.

Figure 3 is a bottom plan view of Figure 2.

4 is a perspective view of a tire detecting device according to a second embodiment of the present invention.

Fig. 5 is a perspective view showing a tire detecting device according to a third embodiment of the present invention.

Fig. 6 is a perspective view showing a tire detecting device according to a fourth embodiment of the present invention.

10‧‧‧ Tire testing device

1‧‧‧ carrying base

11‧‧‧ bearing surface

111‧‧‧Guided track

2‧‧‧Support platform

3‧‧‧Sensor unit

31‧‧‧ bracket

32‧‧‧Line sensor

4‧‧‧Fixed components

41‧‧‧Fixed parts

5‧‧‧Control unit

6‧‧‧Test items

61‧‧‧ tires

H‧‧‧ Height

Claims (10)

A tire detecting device for detecting an offset of a tire of a product to be tested, and comprising: a bearing base having a bearing surface; a supporting platform disposed on the bearing base and protruding from the bearing The test object is placed on the support platform, and the tire is located above the bearing surface and does not contact the bearing surface and the support platform; at least one sensing unit is disposed on the bearing base and located The at least one sensing unit includes a bracket, at least one line sensor mounted on the bracket, and at least one ball rotatably disposed at a sensing end of the at least one line sensor And for contacting a side plane of the tire, wherein a rotating axis of the tire passes through the side plane and does not pass the ball, and when the tire rotates, the side plane presses the line sensor and drives The ball rotates a fixing component, is located above the bearing surface, and is used for fixing the product to be tested; and a control unit electrically connected to the line sensor; wherein the sensing unit has a line sensing Device The number of the balls is at least two, and the number of the balls of the sensing unit is at least two, and the wire detectors are all provided with the brackets, and the balls are rotatably disposed in the sensing ends, respectively. And used to contact the side plane. The tire detecting device of claim 1, wherein the heights of the line sensors are different from each other with respect to the bearing surface. The tire detecting device of claim 1, wherein the number of the sensing units is at least two, and the supporting platform is located at two Between the sensing units. The tire detecting device of claim 1, wherein the sensing unit further comprises a position fine adjustment mechanism, the position fine adjustment mechanism is connected between the bracket and the line sensor, and is used for adjusting the line sensing The relative position between the device and the tire. The tire detecting device of claim 1, wherein the sensing unit further comprises a lifting mechanism connected between the bracket and the carrying base, and configured to adjust the line sensor relative to the line The height of the bearing surface. The tire detecting device of claim 1, wherein the carrying base further has at least one guiding track on the carrying surface, and the at least one sensing unit is movably mounted on the guiding track to The at least one sensing unit is moved relative to the carrier base along the guiding track. The tire detecting device of claim 1, wherein the supporting platform is a lifting platform and is used for adjusting a height of the tire relative to the bearing surface. The tire detecting device of claim 1, wherein the fixing component comprises at least two fixing members for clamping the product to be tested. A tire detecting device for detecting an offset of a tire of a product to be tested, and comprising: a bearing base having a bearing surface; a supporting platform disposed on the bearing base and protruding from the bearing The test object is placed on the support platform, and the tire is located above the bearing surface and does not contact the bearing surface and the supporting platform; The at least one sensing unit is disposed at the supporting base and located at the supporting platform. The at least one sensing unit includes a bracket, at least one line sensor mounted on the bracket, and at least one ball, the ball is rotatable Positioning in a sensing end of the at least one line of the sensor and for contacting a side plane of the tire, wherein a rotating axis of the tire passes through the side plane and does not pass the ball when the tire rotates The side plane presses the line sensor and drives the ball to rotate; and a fixing component is located above the bearing surface and is used for fixing the product to be tested; wherein the sensing unit further includes a position fine adjustment mechanism. The position fine adjustment mechanism is coupled between the bracket and the line sensor and is used to adjust a relative position between the line sensor and the tire. A tire detecting device for detecting an offset of a tire of a product to be tested, and comprising: a bearing base having a bearing surface; a supporting platform disposed on the bearing base and protruding from the bearing The test object is placed on the support platform, and the tire is located above the bearing surface and does not contact the bearing surface and the support platform; at least one sensing unit is disposed on the bearing base and located The at least one sensing unit includes a bracket, at least one line sensor mounted on the bracket, and at least one ball rotatably disposed at a sensing end of the at least one line sensor And for contacting a side plane of the tire, wherein a rotating axis of the tire passes through the side plane and does not pass the ball, and when the tire rotates, the side plane presses the line sensor and drives The ball rotates; and a fixing component is located above the bearing surface and is used for fixing the product to be tested; The carrier base further has at least one guiding track on the bearing surface, and the at least one sensing unit is movably mounted on the guiding track, so that the at least one sensing unit is along the guiding track. Moving relative to the carrier base.