Rim flatness detection device

Abstract

A rim flatness detection device disclosed by the present invention comprises a supporting table, the supporting table is provided with a rotatable detection ring, the detection ring is provided with a plurality of telescopic grooves which are annularly arranged at equal intervals, and the telescopic grooves are internally provided with telescopic pieces which can move along the circumferential directions of the telescopic grooves. A contact wheel is installed at the end, facing the inner side of the detection ring, of the telescopic part, a supporting plate is arranged on the outer wall of the detection ring, the other end of the telescopic part extends to the supporting plate, a rotatable rotating rod is installed on the supporting plate, and the end, extending to the supporting plate, of the telescopic part abuts against the rotating rod; and the telescopic piece moves to drive the rotating rod to rotate. When the flatness of the rim is not uniform, the telescopic pieces 300 can move to different degrees, so that the rotating angles of the rotating rods 410 and the detecting rod 411 are different, and the flatness of the rim can be directly judged through comparison of the indicating rod 420 and the detecting rod 411.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub detection, and more particularly to a wheel rim flatness detection device. Background Art

[0002] During rim processing, the flatness of the rim needs to be measured to facilitate calibration and subsequent processing.

[0003] The Chinese utility model application number CN202323609028.9 discloses a rim flatness detection device, which relates to the field of wheel hub processing technology, including an installation box, a rotating mechanism, a placement table, a positioning tool, a height adjustment mechanism, a horizontal adjustment mechanism and a micrometer; a rotating mechanism is provided in the installation box, and a placement table is provided on the rotating mechanism to drive the placement table to rotate in the horizontal direction. The placement table is located above the installation box and its main body shape is circular. A positioning hole is provided at the center of the placement seat, and a positioning tool is threadedly connected in the positioning hole so that the positioning tool can be adaptively replaced according to rims of different sizes. A height adjustment mechanism is provided on the installation box, and the height adjustment mechanism is connected to a horizontal adjustment mechanism. The horizontal adjustment mechanism is connected to a micrometer so that the micrometer can be adjusted along the Z-axis and Y-axis directions.

[0004] In the existing rim flatness detection device, the position between the detection tool and the rim needs to be adjusted to ensure the accuracy of the detection, which makes the detection relatively complicated. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a rim flatness detection device that is convenient for detection.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a rim flatness detection device, including a support platform, the support platform is equipped with a rotatable detection ring, the detection ring is provided with a plurality of equidistant annular telescopic grooves, the telescopic grooves are provided with telescopic parts that can move along the circumference of the telescopic grooves, the telescopic parts are provided with a contact wheel at one end facing the inner side of the detection ring, the outer wall of the detection ring is provided with a support plate, the other end of the telescopic part extends to the support plate, the support plate is equipped with a rotatable rotating rod, the telescopic part extends to one end of the support plate and abuts against the rotating rod, and the movement of the telescopic part drives the rotating rod to rotate.

[0007] Furthermore, the telescopic part includes a supporting part, a connecting part and an abutting part, the supporting part is placed in the telescopic groove, the connecting part is connected to one end of the telescopic part facing the inner side of the detection ring, the contact wheel is installed at the end of the connecting part, the abutting part is connected to one end of the telescopic part facing the outer side of the detection ring, and the abutting part abuts against the rotating rod.

[0008] Furthermore, a first guide surface inclined toward the center of the telescopic slot is provided at the inner opening of the telescopic slot toward the detection ring, and the telescopic member is provided with a second guide surface cooperating with the first guide surface.

[0009] Furthermore, the side wall of the telescopic slot is provided with a first guide groove extending toward the center of the telescopic slot, a first movable block is provided in the first guide groove, a first roller is provided at one end of the first movable block extending out of the first guide slot, a first spring is provided in the first guide slot, and the first spring pushes the first movable block toward the support portion so that the first roller abuts against the support portion.

[0010] Furthermore, the side wall of the support portion is provided with a third guide surface, which extends from the outer side of the detection ring to the inner side of the detection ring and is inclined toward the center of the telescopic slot, and the first roller abuts against the third guide surface.

[0011] Furthermore, the side wall of the telescopic slot is provided with a second guide groove extending toward the center of the telescopic slot, a second movable block is provided in the second guide groove, a second roller is provided at the end of the second movable block, and a second spring is provided in the second guide groove, and the second spring pushes the second movable block to move toward the support part so that the second roller abuts against the support part.

[0012] Furthermore, the support platform is connected to a support rod extending upward, the top of the support rod is connected to a second support ring, the bottom of the detection ring is provided with a first support ring, the first support ring includes a first connecting ring extending downward, the second support ring is provided with a second connecting groove corresponding to the position of the first connecting ring, a first ball is provided in the second connecting groove, the first connecting ring is embedded in the second connecting groove and contacts with the first ball.

[0013] Furthermore, the second support ring also includes a second connecting ring extending upward, the first support ring is provided with a first connecting groove corresponding to the position of the second connecting ring, a second ball is arranged in the first connecting groove, and the second connecting ring is embedded in the first connecting groove and in contact with the second ball.

[0014] Furthermore, a detection rod is connected to the top of the rotating rod, and an indicator rod extending in a vertical direction is connected to the support plate.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. Set up a detection ring and place the wheel hub at its center. Mounted on the detection ring is a telescopic element that abuts a rotating rod, on which the detection rod is mounted. If the rim's flatness is uneven, the telescopic elements will move to varying degrees, causing the rotating rods and the detection rods to rotate at different angles. By comparing the indicator rods with the detection rods, the rim's flatness can be directly determined.

[0017] 2. An inclined first guide surface is provided in the telescopic groove, and an inclined second guide surface is provided in the telescopic member. Through the cooperation of the first guide surface and the second guide surface, the telescopic member can be kept in the center of the telescopic groove, thereby preventing detection errors caused by inconsistent contact points between the curved rim and the contact wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 A schematic structural diagram of the cooperation between the first support ring and the second support ring;

[0021] Figure 4 Schematic diagram of the structure of the telescopic member;

[0022] Figure 5 It is a schematic diagram of the structure inside the telescopic slot;

[0023] Figure numerals: support platform 100, support rod 110, detection ring 200, telescopic slot 210, first guide surface 211, first guide slot 220, first moving block 221, first spring 222, first roller 223, second guide slot 230, second moving block 231, second spring 232, second roller 233, telescopic member 300, contact wheel 301, support portion 310, second guide surface 311, third guide surface 312, connecting portion 320, abutting portion 330, support plate 400, rotating rod 410, detection rod 411, indicator rod 420, first support ring 500, first connecting ring 510, first connecting slot 520, first ball 530, second support ring 600, second connecting ring 610, second connecting slot 620, second ball 630. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See Figures 1 to 5 This embodiment discloses a rim flatness detection device, including a support platform 100, on which a rotatable detection ring 200 is mounted. The detection ring 200 has a plurality of equidistant annularly arranged telescopic slots 210. A telescopic member 300 is disposed within the telescopic slot 210 and is movable circumferentially along the telescopic slot 210. A contact wheel 301 is mounted on one end of the telescopic member 300 facing the inner side of the detection ring 200. A support plate 400 is disposed on the outer wall of the detection ring 200. The other end of the telescopic member 300 extends to the support plate 400. A rotatable rotating rod 410 is mounted on the support plate 400. A detection rod 411 is connected to the top of the rotating rod 410. An indicator rod 420 extending in the vertical direction is connected to the support plate 400. The telescopic member 300 extends to one end of the support plate 400 and abuts against the rotating rod 410. The movement of the telescopic member 300 drives the rotating rod 410 to rotate. The wheel hub is placed in the detection ring 200, allowing the contact wheel 301 to contact the rim. If the rim is not flat, the telescopic members 300 will move to varying degrees, causing the rotating rods 410 and the detection rods 411 to rotate at different angles. By comparing the indicator rod 420 with the detection rod 411, the flatness of the rim can be directly determined.

[0026] The telescopic member 300 includes a support portion 310, a connecting portion 320, and an abutting portion 330. The support portion 310 is positioned in the telescopic slot 210. The connecting portion 320 connects to the end of the telescopic member 300 facing the inner side of the detection ring 200. The contact wheel 301 is mounted on the end of the connecting portion 320. The abutting portion 330 connects to the end of the telescopic member 300 facing the outer side of the detection ring 200. The abutting portion 330 abuts against the rotating rod 410. A first guide surface 211 is provided at the inner opening of the telescopic slot 210 facing the detection ring 200, which is inclined toward the center of the telescopic slot 210. The telescopic member 300 is provided with a second guide surface 311 that cooperates with the first guide surface 211. Through the cooperation between the first guide surface 211 and the second guide surface 311, it can be ensured that the telescopic member 300 is always in the center of the telescopic groove 210 when the contact wheel 301 contacts the rim, thereby ensuring the height of each contact wheel 301 is consistent, and preventing detection errors caused by inconsistent contact points between the curved rim and the contact wheel 301.

[0027] The sidewall of the telescopic slot 210 is provided with a first guide slot 220 extending toward the center of the telescopic slot 210. A first movable block 221 is provided in the first guide slot 220. A first roller 223 is provided at one end of the first movable block 221 extending out of the first guide slot 220. A first spring 222 is provided in the first guide slot 220. The first spring 222 pushes the first movable block 221 toward the support portion 310 so that the first roller 223 abuts the support portion 310. Simultaneously, the sidewall of the telescopic slot 210 is provided with a second guide slot 230 extending toward the center of the telescopic slot 210. A second movable block 231 is provided in the second guide slot 230. A second roller 233 is provided at the end of the second movable block 231. A second spring 232 is provided in the second guide slot 230. The second spring 232 pushes the second movable block 231 toward the support portion 310 so that the second roller 233 abuts the support portion 310. The sidewall of the support portion 310 is provided with a third guide surface 312. The third guide surface 312 extends from the outside of the detection ring 200 to the inside of the detection ring 200 and is inclined toward the center of the telescopic slot 210. The first roller 223 and the second roller 233 abut against the third guide surface 312. The third guide surface 312 causes the support portion 310 to gradually increase in size from the outside of the detection ring 200 to the inside of the detection ring 200. This allows the first roller 223 and the second roller 233 to restrict the telescopic member 300 from moving toward the outside of the detection ring 200, thereby ensuring that the contact wheel 301 maintains stable contact with the wheel rim, thereby ensuring detection accuracy.

[0028] The support platform 100 is connected to an upwardly extending support rod 110. A second support ring 600 is connected to the top of the support rod 110. A first support ring 500 is provided at the bottom of the detection ring 200. The first support ring 500 includes a downwardly extending first connecting ring 510. The second support ring 600 is provided with a second connecting groove 620 corresponding to the position of the first connecting ring 510. A first ball 530 is disposed in the second connecting groove 620. The first connecting ring 510 is embedded in the second connecting groove 620 and contacts the first ball 530. The second support ring 600 also includes an upwardly extending second connecting ring 610. The first support ring 500 has a first connecting groove 520 corresponding to the position of the second connecting ring 610. A second ball 630 is disposed in the first connecting groove 520. The second connecting ring 610 is embedded in the first connecting groove 520 and contacts the second ball 630. This allows the detection ring 200 to rotate, making it easier to check the portion where the detection rod 411 and the indicator rod 420 are significantly different.

[0029] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A rim flatness detection device, characterized in that: The invention comprises a support platform (100), wherein the support platform (100) is provided with a rotatable detection ring (200), the detection ring (200) is provided with a plurality of telescopic slots (210) arranged in an equidistant ring, a telescopic member (300) capable of moving along the circumferential direction of the telescopic slot (210) is provided in the telescopic slot (210), a contact wheel (301) is provided at one end of the telescopic member (300) facing the inner side of the detection ring (200), a support plate (400) is provided on the outer wall of the detection ring (200), the other end of the telescopic member (300) extends to the support plate (400), a rotatable rotating rod (410) is provided on the support plate (400), the telescopic member (300) extends to one end of the support plate (400) and abuts against the rotating rod (410), and the telescopic member (300) moves to drive the rotating rod (410) to rotate.

2. A rim flatness detection device according to claim 1, characterized in that: The telescopic member (300) comprises a supporting portion (310), a connecting portion (320) and an abutting portion (330), wherein the supporting portion (310) is placed in the telescopic groove (210), the connecting portion (320) is connected to an end of the telescopic member (300) facing the inner side of the detection ring (200), the contact wheel (301) is mounted on an end of the connecting portion (320), the abutting portion (330) is connected to an end of the telescopic member (300) facing the outer side of the detection ring (200), and the abutting portion (330) abuts against the rotating rod (410).

3. A rim flatness detection device according to claim 2, characterized in that: The telescopic slot (210) is provided with a first guide surface (211) inclined toward the center of the telescopic slot (210) at an inner opening thereof facing the detection ring (200), and the telescopic member (300) is provided with a second guide surface (311) matched with the first guide surface (211).

4. A rim flatness detection device according to claim 2, characterized in that: A first guide groove (220) extending toward the center of the telescopic groove (210) is provided on a side wall of the telescopic groove (210); a first moving block (221) is provided in the first guide groove (220); a first roller (223) is provided at one end of the first moving block (221) extending out of the first guide groove (220); a first spring (222) is provided in the first guide groove (220); the first spring (222) pushes the first moving block (221) to move toward the support portion (310) so that the first roller (223) abuts against the support portion (310).

5. The rim flatness detection device according to claim 4, characterized in that: A third guide surface (312) is provided on the side wall of the support portion (310), and the third guide surface (312) extends from the outside of the detection ring (200) to the inside of the detection ring (200) and is inclined toward the center of the telescopic slot (210), and the first roller (223) abuts against the third guide surface (312).

6. The rim flatness detection device according to claim 4, characterized in that: The side wall of the telescopic slot (210) is provided with a second guide slot (230) extending toward the center of the telescopic slot (210); a second moving block (231) is provided in the second guide slot (230); a second roller (233) is provided at the end of the second moving block (231); a second spring (232) is provided in the second guide slot (230); the second spring (232) pushes the second moving block (231) to move toward the support portion (310) so that the second roller (233) abuts against the support portion (310).

7. The rim flatness detection device according to claim 1, characterized in that: The support platform (100) is connected to a support rod (110) extending upward, the top of the support rod (110) is connected to a second support ring (600), the bottom of the detection ring (200) is provided with a first support ring (500), the first support ring (500) includes a first connecting ring (510) extending downward, the second support ring (600) is provided with a second connecting groove (620) corresponding to the position of the first connecting ring (510), a first ball (530) is provided in the second connecting groove (620), and the first connecting ring (510) is embedded in the second connecting groove (620) and contacts the first ball (530).

8. The rim flatness detection device according to claim 7, characterized in that: The second support ring (600) further includes a second connecting ring (610) extending upward, the first support ring (500) is provided with a first connecting groove (520) corresponding to the position of the second connecting ring (610), a second ball (630) is provided in the first connecting groove (520), and the second connecting ring (610) is embedded in the first connecting groove (520) and in contact with the second ball (630).

9. The rim flatness detection device according to claim 1, characterized in that: The top of the rotating rod (410) is connected to a detection rod (411), and the support plate (400) is connected to an indicator rod (420) extending in a vertical direction.

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