Wheel roundness run-out tolerance detection equipment

Abstract

The utility model discloses wheel roundness run-out tolerance detection equipment, which comprises a bearing platform, a wheel fixing shaft and a display, a turntable is rotatably arranged on the bearing platform, the wheel fixing shaft is arranged on the turntable, an annular groove is arranged on the bearing platform, a circular ring is rotatably arranged in the annular groove, and the display is arranged in the circular ring. A supporting column is arranged on the circular ring and sleeved with a cross beam, an electric sliding way is installed on the lower wall face of the cross beam, a bearing plate is installed at the moving end of the electric sliding way, a supporting rod is installed on the lower wall face of the bearing plate, a cavity is formed in one side of the supporting rod, and a ball is arranged at one end of the cavity. The utility model relates to the technical field of wheel production, during reinspection, a wheel is installed on a wheel fixing shaft, a fastening bolt is unscrewed, a worker can rotate a circular ring to enable a ball on a supporting rod to do circular motion around the wheel, and the roundness run-out condition of the wheel is inspected through the length change of a part, connected into a circuit, of a conductive resistor.

Description

Technical Field

[0001] This utility model relates to the field of wheel manufacturing technology, specifically a wheel roundness runout tolerance testing device. Background Technology

[0002] Wheel production is a relatively complex process, with almost all steps completed on automated production lines from raw materials to finished products. This involves numerous processes. To ensure production quality and avoid wasting resources on subsequent processes, an inspection step is performed after each process to remove defective products, while qualified products proceed to the next process until a complete wheel is produced. Wheel roundness runout tolerance inspection is one of these inspection steps. The purpose of this inspection is to ensure the wheel's balance and stability, ensuring its quality. Currently, wheel roundness runout tolerance inspection is performed by equipment, a relatively mature technology, and the equipment itself has no obvious defects. However, in practical use, the existing inspection equipment lacks a manual calibration step. After a batch of wheels has been inspected by the equipment, manual spot checks are required to re-inspect the roundness runout tolerance, which also serves as a verification of the inspection equipment. If the inspection equipment malfunctions, the entire batch of wheels needs to be re-inspected. Therefore, the existing inspection equipment lacks a re-inspection function. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a wheel roundness runout tolerance testing device, which solves the problem of lack of re-inspection in existing wheel roundness runout tolerance testing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wheel roundness runout tolerance testing device, comprising a support platform, a wheel fixing shaft, and a display. A turntable is rotatably mounted on the support platform, and the wheel fixing shaft is mounted on the turntable. An annular groove is provided on the support platform, and a ring is rotatably mounted within the annular groove. A support column is provided on the ring, and a crossbeam is fitted onto the support column. An electric slide rail is mounted on the lower wall of the crossbeam, and a support plate is mounted on the moving end of the electric slide rail. A support rod is mounted on the lower wall of the support plate, and a cavity is provided inside one side of the support rod. A ball bearing is provided at one end of the cavity, and a sliding resistance mechanism is provided within the cavity. The display is mounted on the other side of the support rod.

[0005] Preferably, the sliding resistance mechanism includes an insulating rod slidably mounted in the cavity. A conductive resistor and a connecting rod are respectively connected to both ends of the insulating rod, and a spring is externally fitted onto the rod. A ball bearing is rotatably connected to the connecting rod. Both ends of the spring are respectively connected to the connecting rod and the inner wall of the cavity. A voltmeter is installed inside the cavity. The output and input ends of the voltmeter are respectively connected to conductive contacts and wires. The conductive contacts have contact points that slide in contact with the outer wall of the conductive resistor. The voltmeter is electrically connected to a display.

[0006] Preferably, the support column is provided with several through holes, the crossbeam is provided with a sliding groove, a rod is slidably inserted into the sliding groove, one end of the rod is inserted into the through hole and the other end is provided with a handle, the sliding groove is provided with a second cavity, a baffle is fitted outside the rod and inside the second cavity, and a second spring is fitted on the rod, the two ends of the second spring are respectively connected to the baffle and the inner wall of the second cavity.

[0007] Preferably, the bearing platform has a groove, a motor is installed in the groove, a gear is installed on the drive end of the motor, and an external gear ring is installed on the outer wall of the turntable, which meshes with the gear.

[0008] Preferably, a fastening bolt is screwed onto the outer wall of the annular groove, and one end of the fastening bolt extends into the annular groove and contacts the annulus.

[0009] Beneficial effects

[0010] This utility model provides a wheel roundness runout tolerance testing device, which has the following beneficial effects:

[0011] The testing structure is housed within a support rod, which is mounted on a support column via a crossbeam. The support column is then mounted on a rotatable ring. During spot checks and re-inspections, the wheel is installed on a fixed wheel axle. The electric slide is activated, causing the ball bearings on the support rod to contact the outer surface of the wheel. The fastening bolts are then loosened, and the operator can rotate the ring to make the ball bearings on the support rod move in a circular motion around the wheel. The ball bearings, through a connecting rod and an insulating rod, drive a conductive resistor to slide left and right on the conductive contact. The change in the length of the portion of the conductive resistor connected to the circuit is then used to check the wheel's roundness runout. This allows for both wheel re-inspection and equipment condition checks. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention.

[0013] Figure 2 This is the front view of the crossbeam of this utility model.

[0014] Figure 3 This is a cross-sectional view of the support rod of this utility model.

[0015] In the diagram: 1. Load-bearing platform; 2. External gear ring; 3. Turntable; 4. Ring; 5. Gear; 6. Motor; 7. Wheel fixing axle; 8. Support column; 9. Insert rod; 10. Crossbeam; 11. Fastening bolt; 12. Load-bearing plate; 13. Baffle; 14. Conductive resistor; 15. Support rod; 16. Electric slide rail; 17. Connecting rod; 18. Spring; 19. Ball bearing; 20. Conductive contact; 21. Voltmeter; 22. Display; 23. Wire; 24. Second spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a wheel roundness runout tolerance detection device, including a bearing platform 1, a wheel fixing shaft 7, and a display 22. A turntable 3 is rotatably mounted on the bearing platform 1, and the wheel fixing shaft 7 is set on the turntable 3. An annular groove is provided on the bearing platform 1, and a ring 4 is rotatably mounted in the annular groove. A support column 8 is provided on the ring 4, and a crossbeam 10 is fitted on the support column 8. An electric slide rail 16 is installed on the lower wall of the crossbeam 10. A bearing plate 12 is installed on the moving end of the electric slide rail 16. A support rod 15 is installed on the lower wall of the bearing plate 12. A cavity is provided inside one side of the support rod 15, and a ball bearing 19 is provided at one end of the cavity. A sliding resistance mechanism is provided inside the cavity. The display 22 is installed on the other side of the support rod 15.

[0018] The wheel fixing axle 7 is an existing and mature device. Its function is to fix the wheel. Its structure and usage are common technologies in wheel manufacturing and automotive repair, so there is no need to go into detail.

[0019] The electrical connection between the display 22 and the voltmeter 21 is a conventional technical means. The function of the display 22 is to facilitate the observation of the reading of the voltmeter 21, and to judge whether the roundness fluctuation is within the acceptable range by the voltage change of the voltmeter 21.

[0020] Furthermore, the sliding resistance mechanism includes an insulating rod slidably installed in the cavity. The two ends of the insulating rod are respectively connected to a conductive resistor 14 and a connecting rod 17, and a spring 18 is externally fitted on it. The ball bearing 19 is rotatably connected to the connecting rod 17. The two ends of the spring 18 are respectively connected to the connecting rod 17 and the inner wall of the cavity. A voltmeter 21 is provided in the cavity. The output end and input end of the voltmeter 21 are respectively connected to a conductive contact 20 and a wire 23. The conductive contact 20 has a contact point, which slides in contact with the outer wall of the conductive resistor 14. The voltmeter 21 is electrically connected to the display 22.

[0021] Furthermore, the support column 8 is provided with several through holes, the crossbeam 10 is provided with a sliding groove, and a rod 9 is slidably inserted into the sliding groove. One end of the rod 9 is inserted into the through hole and the other end is provided with a handle. The sliding groove is provided with a second cavity. A baffle 13 is fitted outside the rod 9 and inside the second cavity. A second spring 14 is fitted on the rod 9. The two ends of the second spring 14 are respectively connected to the baffle 13 and the inner wall of the second cavity.

[0022] Several through holes are provided on the support column 8. After the insertion rod 9 is pulled out from the through hole, the height of the crossbeam 10 on the support column 8 can be adjusted. Then the insertion rod 9 is inserted back into the through hole to complete the fixation.

[0023] Furthermore, the bearing platform 1 has a groove, a motor 6 is installed in the groove, a gear 5 is installed on the drive end of the motor 6, and an external gear ring 2 is installed on the outer wall of the turntable 3, which meshes with the gear 5.

[0024] Furthermore, a fastening bolt 11 is screwed onto the outer wall of the annular groove, and one end of the fastening bolt 11 extends into the annular groove and contacts the ring 4.

[0025] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0026] Example: In use, first install the wheel on the wheel fixed axle 7, then start the electric slide rail 16 to bring the support rod 15 close to the wheel through the bearing plate 12 on the moving end, and make the ball bearing 19 contact with the wheel. Then start the motor 6, which drives the turntable 3 to rotate through the meshing gear 5 and the external gear ring 2, thereby driving the wheel to rotate. The ball bearing 19 rolls in contact with the wheel. If the wheel roundness is defective, the ball bearing 19 will drive the connecting rod 17 to move left and right. The connecting rod 17 drives the conductive resistor 14 to move left and right through the insulating rod. Since the contact of the conductive contact 20 slides in contact with the conductive resistor 14 and one end of the conductive resistor 14 is electrically connected to the voltmeter 21, the wheel roundness fluctuation can be observed by changing the length of the conductive resistor 14 connected to the circuit.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheel roundness runout tolerance testing device, comprising a support platform (1), a wheel fixing shaft (7), and a display (22), wherein a turntable (3) is rotatably mounted on the support platform (1), and the wheel fixing shaft (7) is disposed on the turntable (3), characterized in that, The bearing platform (1) is provided with an annular groove, and a ring (4) is rotatably installed in the annular groove. A support column (8) is provided on the ring (4), and a crossbeam (10) is fitted on the support column (8). An electric slide (16) is installed on the lower wall of the crossbeam (10). A bearing plate (12) is installed on the moving end of the electric slide (16). A support rod (15) is installed on the lower wall of the bearing plate (12). A cavity is provided inside one side of the support rod (15). A ball bearing (19) is provided at one end of the cavity. A sliding resistance mechanism is provided inside the cavity. The display (22) is installed on the other side of the support rod (15).

2. The wheel roundness runout tolerance testing device according to claim 1, characterized in that, The sliding resistance mechanism includes an insulating rod slidably installed in the cavity. The two ends of the insulating rod are respectively connected to a conductive resistor (14) and a connecting rod (17) and are externally fitted with a spring (18). The ball (19) is slidably connected to the connecting rod (17). The two ends of the spring (18) are respectively connected to the connecting rod (17) and the inner wall of the cavity. A voltmeter (21) is provided in the cavity. The output end and input end of the voltmeter (21) are respectively connected to a conductive contact (20) and a wire (23). The conductive contact (20) is provided with a contact point. The contact point slides in contact with the outer wall of the conductive resistor (14). The voltmeter (21) is electrically connected to the display (22).

3. The wheel roundness runout tolerance testing device according to claim 1, characterized in that, The support column (8) is provided with several through holes, the crossbeam (10) is provided with a sliding groove, and a rod (9) is slidably inserted into the sliding groove. One end of the rod (9) is inserted into the through hole and the other end is provided with a handle. The sliding groove is provided with a second cavity. A baffle (13) is fitted outside the rod (9) and inside the second cavity. A second spring (14) is fitted on the rod (9). The two ends of the second spring (14) are respectively connected to the baffle (13) and the inner wall of the second cavity.

4. The wheel roundness runout tolerance testing device according to claim 1, characterized in that, The bearing platform (1) has a groove, and a motor (6) is provided in the groove. A gear (5) is provided on the drive end of the motor (6). An external gear ring (2) is provided on the outer wall of the turntable (3), and the external gear ring (2) meshes with the gear (5).

5. The wheel roundness runout tolerance testing device according to claim 1, characterized in that, A fastening bolt (11) is screwed onto the outer wall of the annular groove. One end of the fastening bolt (11) extends into the annular groove and contacts the ring (4).

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