Detection tool for hub safety detection and detection method thereof

Abstract

The invention discloses a detection tool for wheel hub safety detection and a detection method thereof, and relates to the field of wheel hub detection, the detection tool comprises a rack, a rotating table and an adjusting mechanism, the adjusting mechanism comprises a fixed seat, a movable frame, an adjusting assembly and a suction device, the adjusting assembly comprises an adjusting head, a plurality of T-shaped passages are arranged in the adjusting head, and the suction device is arranged in the movable frame. The T-shaped passage is composed of a longitudinal passage and a transverse passage, a guide pipe is rotationally arranged in the longitudinal passage, the upper side of the guide pipe is open and connected with the suction device, the lower side of the guide pipe is sealed and blocks the longitudinal passage and the transverse passage, and an air port is formed in the guide pipe corresponding to the height of the transverse passage. And a common passage is arranged in the adjusting head and is communicated with the longitudinal passage. The wheel hub detection device is suitable for wheel hub detection in different states, and the detection quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub detection, and in particular to a detection fixture for wheel hub safety detection and a detection method thereof. Background Art

[0002] The detection of automobile wheel size is a key quality control link, which ensures the wheel size accuracy and product quality, and is related to the safety of the wheel in use. At present, the wheel size detection mainly adopts automated machine vision technology, which is realized by high-precision industrial cameras and 3D scanners. These systems can detect multiple dimensional parameters of the wheel, including center hole diameter, bolt hole diameter, PCD pitch circle diameter, etc.

[0003] Automobile wheels need to be inspected for size not only after production, but also after some performance tests. The test results are obtained by comparing the data changes before and after the test and analyzing and judging. For example, the strength test of the wheel can reveal the dimensional stability of the wheel material under continuous load. If the wheel is deformed after the strength test, it may indicate that its dimensional stability is insufficient; the wear test can evaluate the durability and performance changes of the wheel material in long-term use.

[0004] The existing wheel hub inspection fixture is basically a test bench based on visual inspection. The wheel hub to be inspected is placed on the table, and the wheel hub size inspection is achieved by setting the drive module to adjust the inspection position. However, the visual inspection module can generally only inspect from the top side, and other positions of the wheel hub need to be manually adjusted. For the wheel hub before and after the test, the change comparison of the size data is essential, and the existing inspection bench inspection is not comprehensive. Summary of the invention

[0005] The object of the present invention is to provide a testing fixture and a testing method for wheel hub safety testing, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a checking fixture for wheel hub safety detection and a detection method thereof, comprising a frame, a rotating table, a detection mechanism and an adjustment mechanism, wherein the rotating table is fixed in the frame and is used to place the wheel hub to be detected, the detection mechanism is provided with two groups of detection components, which are respectively arranged on both sides of the rotating table and located on the same axis, and are used to detect the wheel hub size parameters and surface conditions, and the adjustment mechanism is fixed on one side of the rotating table and is used to adjust the wheel hub position and surface treatment.

[0007] According to the above technical solution, the adjustment mechanism includes a fixed seat, a movable frame, an adjustment component and a suction device, wherein a screw drive module is connected between the movable frame and the fixed seat, the adjustment component is arranged on the movable frame, and the suction device is fixed on one side of the fixed seat.

[0008] According to the above technical solution, the adjustment component includes an adjustment head, and a plurality of T-shaped passages are arranged in the adjustment head, and the T-shaped passage is composed of a longitudinal passage and a transverse passage, wherein the longitudinal passage passes through the adjustment head up and down, and the transverse passage is led out from the longitudinal passage to the side of the adjustment head, and a guide tube is rotatably arranged in the longitudinal passage, the upper side of the guide tube is opened and connected to the suction device, the lower side of the guide tube is sealed and blocks the longitudinal passage and the transverse passage, the guide tube has an air port at a height corresponding to the transverse passage, and a common passage is arranged in the adjustment head, and the common passage is connected to the longitudinal passage.

[0009] According to the above technical solution, the central axis of the moving frame passes through the center of the rotating table.

[0010] According to the above technical solution, one end of the guide tube extending out of the adjusting head is sleeved with a driven gear, the driven gear is cooperatively connected with a driving gear, and the driving gear is connected to a motor 1.

[0011] According to the above technical solution, a slide plate is provided on the adjusting head, the adjusting head and the slide plate are rotatably matched, a mounting plate is connected to the slide plate, a second motor is fixed on the mounting plate, a connecting frame is connected to the driving end of the second motor, and the connecting frame is fixedly connected to the adjusting head.

[0012] According to the above technical solution, the slide plate is connected to an electric push rod, and the electric push rod is fixed on the moving frame to control the movement of the adjusting assembly as a whole on the moving frame.

[0013] According to the above technical solution, the detection component includes an X-axis drive module, a Y-axis drive module, a moving seat, a Z-axis drive module, a transverse detection module and a longitudinal detection module, wherein the Y-axis drive module is arranged at the driving end of the X-axis drive module, the moving seat is fixed at the driving end of the Y-axis drive module, the Z-axis drive module is installed on the moving seat, the transverse detection module is arranged on the moving seat and the detection surface is facing the direction of the turntable, the longitudinal detection module includes an upper detection module and a lower detection module, the upper detection module is installed at the driving end of the Z-axis drive module, and the lower detection module is arranged on the table top of the turntable.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing an adjustment mechanism, wherein an adjustable airflow channel is provided inside the adjustment head, can grasp the center hole position according to actual grasping needs when the wheel hub is in good condition, and cooperate with the detection mechanism to detect the surface of the wheel hub. After the wheel hub has been tested for performance, if the center hole position is deformed and cannot be grasped, the airflow route can be adjusted to achieve grasping of other surfaces of the wheel hub, which is suitable for wheels in different states; secondly, after the exhaust state is adjusted to the blowing state, the adjustment head can adjust the blowing direction according to the cleaning needs of various surfaces of the wheel hub, thereby cleaning impurities and debris attached to the surface of the wheel hub, thereby improving the quality of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial schematic diagram of the present invention; Figure 3 is a schematic diagram of the regulating mechanism of the present invention; Figure 4 is a schematic diagram of an adjustment head of the present invention; Figure 5 It is a partial schematic diagram of the regulating head of the present invention; Figure 6 is a partial cross-sectional view of the regulating head of the present invention; Figure 7 is a schematic diagram of a transverse passage of the present invention; Figure 8 is a schematic diagram of a detection assembly of the present invention; In the figure: 1. frame; 2. rotating table; 3. detection component; 31. X-axis drive module; 32. Y-axis drive module; 33. moving seat; 34. Z-axis drive module; 35. horizontal detection module; 36. upper detection module; 37. lower detection module; 4. fixed seat; 5. moving frame; 6. adjustment component; 61. adjustment head; 611. slide plate; 612. mounting plate; 613. motor 2; 614. connecting frame; 62. T-type passage; 621. longitudinal passage; 622. horizontal passage; 63. guide tube; 631. air port; 64. common passage; 65. driven gear; 66. driving gear; 67. motor 1; 68. electric push rod; 7. suction device; 8. screw drive module. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-8 The present invention provides a technical solution: a check fixture for wheel hub safety inspection, comprising a frame 1, a rotating table 2, a detection mechanism and an adjustment mechanism, wherein the rotating table 2 is fixed in the frame 1 and is used to place the wheel hub to be inspected, the detection mechanism is provided with two groups of detection components 3, which are respectively arranged on both sides of the rotating table 2 and located on the same axis, and are used to detect the wheel hub size parameters and surface conditions, and the adjustment mechanism is fixed on one side of the rotating table 2, and is used to adjust the wheel hub position and surface treatment; The adjustment mechanism includes a fixed seat 4, a movable frame 5, an adjustment component 6 and a suction device 7, wherein a screw drive module 8 is connected between the movable frame 5 and the fixed seat 4, the adjustment component 6 is arranged on the movable frame 5, and the suction device 7 is fixed on one side of the fixed seat 4; The adjusting assembly 6 includes an adjusting head 61, in which a plurality of T-shaped passages 62 are arranged. The T-shaped passages 62 are composed of a longitudinal passage 621 and a transverse passage 622, wherein the longitudinal passage 621 passes through the adjusting head 61 from top to bottom, and the transverse passage 622 is led out from the longitudinal passage 621 to the side of the adjusting head 61, and a guide tube 63 is rotatably arranged in the longitudinal passage 621. The upper side of the guide tube 63 is opened and connected to the suction device 7, and the lower side of the guide tube 63 is sealed and blocks the longitudinal passage 621 and the transverse passage 622. The guide tube 63 has an air port 631 at a height corresponding to the transverse passage 622, and a common passage 64 is arranged in the adjusting head 61, and the common passage 64 is connected to the longitudinal passage 621.

[0018] Supplementary explanations based on the above structure are as follows: the screw drive module 8 is used to drive the movable frame 5 to move longitudinally; the suction device 7 is preferably but not limited to an air pump, which is used to input or extract air flow into the guide tube 63; the outer sleeve of the adjusting head 61 is provided with a soft cushion and cooperates with the T-shaped passage 62 opening; the central axis of the movable frame 5 passes through the center of the circle of the rotating table 2; the guide tube 63 is used to adjust the air flow route. If the air port 631 is facing the transverse passage 622, the air flow will be connected to the side of the adjusting head 61 through the guide tube 63 and the transverse passage 622. If the air port 631 is facing the common passage 64, the air flow will be connected to the lower side of the adjusting head 61 through the guide tube 63, the common passage 64 and the longitudinal passage 621, thereby adjusting the direction of the air flow.

[0019] Furthermore, one end of the guide tube 63 extending out of the regulating head 61 is sleeved with a driven gear 65 , the driven gear 65 is cooperatively connected to a driving gear 66 , and the driving gear 66 is connected to a motor 67 .

[0020] In one embodiment, the motor 1 67 is a micro motor, which is used to drive the driving gear 66 to drive the driven gears 65 to rotate, thereby synchronously driving the guide tubes 63 to rotate, thereby unifying the airflow route.

[0021] A slide plate 611 is sleeved on the adjusting head 61, and the adjusting head 61 and the slide plate 611 are rotatably matched. The slide plate 611 is connected to a mounting plate 612, and a second motor 613 is fixed on the mounting plate 612. The driving end of the second motor 613 is connected to a connecting frame 614, and the connecting frame 614 is connected and fixed to the adjusting head 61.

[0022] In actual operation, the second motor 613 is used to control the connecting frame 614 to drive the adjusting head 61 to rotate as a whole.

[0023] The slide plate 611 is connected to an electric push rod 68, which is fixed on the mobile frame 5 and is used to control the adjustment component 6 to move as a whole on the mobile frame 5. In one embodiment, a card slot is provided on the inner side of the mobile frame 5, and the slide plate 611 is provided with a slider in conjunction with the card slot to provide support force and guide movement for the adjustment component 6.

[0024] The detection component 3 includes an X-axis driving module 31, a Y-axis driving module 32, a moving seat 33, a Z-axis driving module 34, a horizontal detection module 35 and a vertical detection module, wherein the Y-axis driving module 32 is arranged at the driving end of the X-axis driving module 31, the moving seat 33 is fixed at the driving end of the Y-axis driving module 32, the Z-axis driving module 34 is installed on the moving seat 33, the horizontal detection module 35 is arranged on the moving seat 33 and the detection surface is facing the direction of the rotating table 2, and the vertical detection module includes an upper detection module 36 and a lower detection module 37, the upper detection module 36 is installed at the driving end of the Z-axis driving module 34, and the lower detection module 37 is arranged on the table top of the rotating table 2.

[0025] It should be noted that: the lateral detection module 35 and the longitudinal detection module adopt but are not limited to visual detection modules, which are used to respectively detect the dimensions and surface conditions of the side, upper and lower surfaces of the wheel hub; the X-axis drive module 31 and the Y-axis drive module 32 are used to adjust the position of the movable seat 33 on the X and Y axes, thereby adjusting the positions of the lateral detection module 35 and the upper detection module 36 in the X and Y axis directions; the Z-axis drive module 34 is used to adjust the position of the upper detection module 36 on the Z axis.

[0026] The specific implementation methods are as follows: Step 1: The staff places the wheel hub on the rotating table 2, and the position of the center hole of the wheel hub should correspond to the center position of the rotating table 2; Step 2: The lateral detection module 35 detects the side data of two relative positions on the same axis of the wheel hub and marks the detection points, and the upper detection module 36 detects the upper surface data of two relative positions on the same axis of the wheel hub and marks the detection points. The rotating table 2 drives the wheel hub to rotate 180 degrees at a certain speed, and the lateral detection module 35 and the upper detection module 36 record the side and upper surface data of one circle of the wheel hub; Step 3: The screw drive module 8 moves the adjustment component 6 downward to the wheel hub surface. In the initial state, the adjustment head 61 corresponds to the position of the wheel hub center hole, and the size of the adjustment head 61 matches the wheel hub center hole. The adjustment head 61 moves into the wheel hub center hole, and the air port 631 faces the transverse passage 622. The suction device 7 draws air so that the side of the adjustment head 61 can be adsorbed on the inner wall of the wheel hub center hole. The screw drive module 8 drives the adjustment head 61 to move upward, thereby lifting the wheel hub. The lower detection module 37 starts to record and mark the data of the lower surface of the wheel hub. The rotation of the adjustment head 61 drives the wheel hub to rotate 360 ​​degrees, and the lower detection module 37 completely records the lower surface of the wheel hub. Step 4: After collecting the initial information of the wheel hub, the wheel hub is sent for performance testing and then sent back. During the secondary inspection, the side inspection and upper surface inspection repeat the process of step 2. During this period, if the wheel hub has dust and debris on the surface due to the performance test, the surface can be treated by adjusting the blowing function of the head 61; Step 5: When inspecting the lower surface of the wheel hub, if the center hole of the wheel hub is deformed during the performance test and the adjusting head 61 cannot enter normally, the air flow route is changed, the air port 631 is directed toward the common passage 64, and the suction device 7 is used to extract air so that the lower side of the adjusting head 61 can be adsorbed on the surface of the wheel hub, and the process of step 3 is repeated; Step 6: Compare the data changes before and after to obtain the test results.

[0027] Specifically, in step 2, the lateral detection module 35 will record the side data at different heights in the vertical direction, including the distance to the side of the wheel hub and the surface state, wherein the two lateral detection modules 35 compare the two sets of data. In order to avoid interference from other factors, the two lateral detection modules 35 are set to have equal axial center distances with the rotating table 2. Because the two rotating tables 2 are at the two ends of the same axis, the distance d to the side of the wheel hub at the same height detected should be equal. At the same time, the spacing D between the two lateral detection modules 35 minus two d values ​​should be equal to the outer diameter of the wheel hub at this height. Based on this, the wheel hub diameter width and the size of the center position reaching the two side boundaries can be detected. First, the wheel hub diameter width meets the requirements based on the result of D minus the corresponding two d values. Secondly, the two d values ​​are compared to see if they are equal. When both conditions are met, the lateral size of the wheel hub meets the standard.

[0028] In step four, if during the visual inspection, the hub surface is interfered by the attachment of magazine debris, the adjusting head 61 adjusts the vacuum state to the blowing state, and adjusts the air flow path according to the position that needs to be cleaned. For example, if the position that needs to be cleaned is the side of the hub or other through-hole areas of the hub, the adjusting head 61 will turn the guide tube 63 to the lateral passage 622, and the adjusting head 61 will be in the side blowing state, and then the screw drive module 8 and the electric push rod 68 will move it to the required position for surface treatment; if the position that needs to be cleaned is the upper surface of the hub, the adjusting head 61 will turn the guide tube 63 to the common passage 64, and the adjusting head 61 will be in the bottom blowing state, and then the screw drive module 8 and the electric push rod 68 will move it to the required position for surface treatment.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wheel hub safety inspection tool, comprising a frame (1), a rotating table (2), a detection mechanism and an adjustment mechanism, characterized in that: The rotating table (2) is fixed in the frame (1) and is used to place the wheel hub to be inspected; the inspection mechanism is provided with two groups of inspection components (3), which are respectively arranged on two sides of the rotating table (2) and located on the same axis, and are used to inspect the wheel hub size parameters and surface conditions; the adjustment mechanism is fixed on one side of the rotating table (2) and is used to adjust the wheel hub position and surface treatment; The adjustment mechanism comprises a fixed seat (4), a movable frame (5), an adjustment component (6) and a suction device (7), wherein a screw drive module (8) is connected between the movable frame (5) and the fixed seat (4), the adjustment component (6) is arranged on the movable frame (5), and the suction device (7) is fixed on one side of the fixed seat (4); The regulating assembly (6) comprises a regulating head (61), wherein a plurality of T-shaped passages (62) are arranged in the regulating head (61), wherein the T-shaped passages (62) are composed of a longitudinal passage (621) and a transverse passage (622), wherein the longitudinal passage (621) passes through the regulating head (61) vertically, and the transverse passage (622) is led out from the longitudinal passage (621) to the side of the regulating head (61), wherein a guide tube (63) is rotatably arranged in the longitudinal passage (621), wherein the upper side of the guide tube (63) is open and connected to the suction device (7), wherein the lower side of the guide tube (63) is sealed and blocks the longitudinal passage (621) and the transverse passage (622), wherein the guide tube (63) is provided with an air port (631) at a height corresponding to the transverse passage (622), and wherein a common passage (64) is arranged in the regulating head (61), wherein the common passage (64) is communicated with the longitudinal passage (621).

2. A wheel hub safety inspection tool according to claim 1, characterized in that: The central axis of the movable frame (5) passes through the center of the rotating table (2).

3. A wheel hub safety inspection tool according to claim 2, characterized in that: The guide tube (63) is used to adjust the airflow path. If the air port (631) faces the transverse passage (622), the airflow will be connected to the side of the regulating head (61) via the guide tube (63) and the transverse passage (622). If the air port (631) faces the common passage (64), the airflow will be connected to the lower side of the regulating head (61) via the guide tube (63), the common passage (64) and the longitudinal passage (621), thereby adjusting the airflow direction.

4. A wheel hub safety inspection tool according to claim 3, characterized in that: One end of the guide tube (63) extending out of the regulating head (61) is sleeved with a driven gear (65), the driven gear (65) is matched and connected to a driving gear (66), and the driving gear (66) is connected to a motor 1 (67).

5. A wheel hub safety inspection tool according to claim 4, characterized in that: The regulating head (61) is sleeved with a slide plate (611), the regulating head (61) and the slide plate (611) are rotatably matched, the slide plate (611) is connected to a mounting plate (612), a second motor (613) is fixed to the mounting plate (612), a driving end of the second motor (613) is connected to a connecting frame (614), and the connecting frame (614) is connected and fixed to the regulating head (61).

6. A wheel hub safety inspection inspection tool according to claim 5, characterized in that: The slide plate (611) is connected to an electric push rod (68), and the electric push rod (68) is fixed on the movable frame (5) and is used to control the adjustment component (6) to move as a whole on the movable frame (5).

7. A wheel hub safety inspection tool according to claim 6, characterized in that: The detection assembly (3) comprises an X-axis drive module (31), a Y-axis drive module (32), a moving seat (33), a Z-axis drive module (34), a transverse detection module (35) and a longitudinal detection module, wherein the Y-axis drive module (32) is arranged at the drive end of the X-axis drive module (31), the moving seat (33) is fixed at the drive end of the Y-axis drive module (32), the Z-axis drive module (34) is mounted on the moving seat (33), the transverse detection module (35) is arranged on the moving seat (33) with the detection surface facing the direction of the rotating table (2), and the longitudinal detection module comprises an upper detection module (36) and a lower detection module (37), the upper detection module (36) is mounted on the drive end of the Z-axis drive module (34), and the lower detection module (37) is arranged on the table surface of the rotating table (2).

8. A method for testing a wheel hub safety inspection tool, applicable to the wheel hub safety inspection tool according to claim 7, characterized in that: Step 1: The staff places the wheel hub on the rotating table (2), and the position of the center hole of the wheel hub corresponds to the center position of the rotating table (2); Step 2: The lateral detection module (35) detects the side data of two relative positions on the same axis of the wheel hub and marks the detection points, the upper detection module (36) detects the upper surface data of two relative positions on the same axis of the wheel hub and marks the detection points, the rotating platform (2) drives the wheel hub to rotate (180) degrees at a certain speed, and the lateral detection module (35) and the upper detection module (36) record the side and upper surface data of one circle of the wheel hub; Step 3: The screw drive module (8) moves the adjustment component (6) downward to the wheel hub surface. In the initial state, the adjustment head (61) corresponds to the position of the wheel hub center hole, and the size of the adjustment head (61) matches the wheel hub center hole. The adjustment head (61) moves into the wheel hub center hole, and the air port (631) faces the lateral passage (622). The suction device (7) draws air so that the side of the adjustment head (61) can be adsorbed on the inner wall of the wheel hub center hole. The screw drive module (8) drives the adjustment head (61) to move upward, thereby lifting the wheel hub. The lower detection module (37) starts to record and mark the data of the lower surface of the wheel hub. The rotation of the adjustment head (61) drives the wheel hub to rotate (360) degrees. The lower detection module (37) completely records the lower surface of the wheel hub. Step 4: After collecting the initial information of the wheel hub, the wheel hub is sent for performance testing and then sent back. During the secondary inspection, the side inspection and the upper surface inspection repeat the process of step 2. During the period, if the wheel hub has dust and debris on the surface due to the performance test, the surface can be treated by the blowing function of the adjustment head (61); Step 5: When inspecting the lower surface of the wheel hub, if the center hole of the wheel hub is deformed during the performance test and the adjusting head (61) cannot enter normally, the air flow route is changed, the air port (631) is directed toward the common passage (64), and the suction device (7) is used to extract air so that the lower side of the adjusting head (61) can be adsorbed on the surface of the wheel hub, and the process of step 3 is repeated; Step 6: Compare the data changes before and after to obtain the test results.

9. A method for detecting a wheel hub safety inspection tool according to claim 8, characterized in that: Specifically, in step 2, the lateral detection module (35) records the side data at different heights in the vertical direction, including the distance to the side of the wheel hub and the surface state, wherein the two lateral detection modules (35) compare the two sets of data. In order to avoid interference from other factors, the two lateral detection modules (35) are set to have an equal axial center distance with the rotating table (2). Since the two rotating tables (2) are located at the two ends of the same axis, the distance d to the side of the wheel hub at the same height detected should be equal. At the same time, the value of the spacing D between the two lateral detection modules (35) minus two d should be equal to the outer diameter of the wheel hub at this height. Based on this, the wheel hub diameter width and the size of the center position to the two side boundaries are detected. First, the wheel hub diameter width meets the requirements according to the result of D minus the corresponding two d values. Secondly, the two d values ​​are compared to see whether they are equal. When both conditions are met, the lateral size of the wheel hub meets the standard.

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