Torque detection equipment for automobile sun shield support assembly

Abstract

The utility model provides an automobile sun shield support assembly torque detection device, which comprises a substrate, a fixed disc fixed above the substrate, and a rotating disc rotatably arranged between the substrate and the fixed disc, the rotating disc is coaxial with the fixed disc, the diameter of the rotating disc is larger than that of the fixed disc, and a placing table is arranged in the middle of the upper surface of the fixed disc. A groove used for containing a support assembly supporting plate is formed in the upper surface of the containing table, a pressing assembly used for pressing the supporting plate on the groove is connected to the fixed disc, an annular area, not shielded by the fixed disc, of the rotating disc is connected with a blocking column vertically extending upwards, and the upper end of the blocking column is made to be higher than the containing table. When the rotating disc rotates, the end portion of the rotating shaft can be blocked by the blocking column, the rotating shaft rotates relative to the supporting plate, torque testing can be completed, operation is convenient, efficiency is high, the force application direction is not prone to deviation, the force application position can be kept unchanged, the accuracy of a detection result is better, and the testing efficiency is improved. The fluctuation is small.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sun visors, in particular to a torque detection device for an automobile sun visor bracket assembly. Background Art

[0002] A car sun visor is a panel installed above the driver and front passenger's heads to protect them from sunlight glare. It includes a bracket assembly connected to the car body. Chinese Patent CN118322803A discloses this type of car sun visor. Before assembling the car sun visor, the torque of the rotating shaft on the bracket assembly needs to be tested to determine whether the torque is within the required range (usually between 0.63 N·m and 3.26 N·m). Existing testing methods are mostly manual: holding the bracket assembly's support plate in one hand and a dynamometer in the other hand, hooking the end of the bracket assembly's rotating shaft and applying force. The torque value is calculated by reading the dynamometer value and measuring the distance between the hooked portion and the axis of rotation of the shaft. This method has at least the following problems:

[0003] 1. Both hands are required to operate in conjunction with measurement and calculation, which is inconvenient and inefficient.

[0004] 2. The force direction of the dynamometer easily deviates from the rotation plane of the shaft, resulting in poor accuracy of the test results and a certain misjudgment rate.

[0005] 3. It is difficult to maintain the same position of the dynamometer hooking the end of the shaft during each test, resulting in large fluctuations in the results when multiple torque tests are performed on the same shaft assembly. Utility Model Content

[0006] The purpose of the utility model is to solve one or more problems in the prior art and to provide a torque detection device for an automobile sun visor bracket assembly.

[0007] To achieve the above-mentioned purpose, the technical solution provided by the present invention is a vehicle sun visor bracket assembly torque detection device, comprising:

[0008] substrate;

[0009] a fixed plate, the fixed plate being fixed above the substrate;

[0010] a rotating disk, the rotating disk being rotatably disposed between the base plate and the fixed disk, the rotating disk being coaxial with the fixed disk, and having a diameter greater than that of the fixed disk;

[0011] A placement platform is provided in the middle of the upper surface of the fixed plate, and a groove is provided on the upper surface of the placement platform for placing the support plate of the bracket assembly. The fixed plate is also connected to a pressing component for pressing the support plate onto the groove;

[0012] The annular area on the rotating disk that is not blocked by the fixed disk is connected to a blocking column extending vertically upward, the upper end of the blocking column is higher than the placement table, and the distance between the blocking column and the groove is 80% to 90% of the length of the bracket assembly shaft. When the rotating disk rotates, the blocking column can block the end of the rotating shaft, so that the rotating shaft rotates relative to the support plate to complete the torque test.

[0013] Preferably, an anti-fouling step for supporting the support plate is provided in the groove, and an air vent communicating with the bottom of the groove is provided on the placement platform, and the air vent passes through the side wall of the placement platform.

[0014] Preferably, the clamping assembly includes a clamping cylinder, an extension plate, and a clamping block. The clamping cylinder is arranged on the fixed plate and is located on one side of the placement table. The cylinder rod of the clamping cylinder extends vertically upward. The extension plate is connected to the end of the cylinder rod and extends horizontally in the direction of the axis of the fixed plate. The clamping block is connected to the end of the extension plate away from the cylinder rod and is located above the groove. When the cylinder rod retracts, the clamping block can press the support plate onto the groove.

[0015] Further preferably, the lower end of the compression block is connected to a silicone block.

[0016] Preferably, there are two blocking posts, which are spaced apart along the circumferential direction of the rotating disk, and the spacing between the two blocking posts is 1.01 to 1.05 times the end diameter of the rotating shaft. When the support plate is pressed against the groove, the two blocking posts can clamp the end of the rotating shaft.

[0017] Preferably, the upper end portion of the blocking column is provided with a milling plane matching the end portion of the rotating shaft.

[0018] Preferably, the automobile sun visor bracket assembly torque detection device also includes a servo motor for driving the rotating disk to rotate, a sensor for detecting the real-time torque of the servo motor, and a display screen for displaying the detection value of the sensor.

[0019] Further preferably, a hollow platform for supporting the rotation of the rotating disk is provided on the base plate, the hollow platform includes a rotatable bearing and a gear ring connected to the inner ring or outer ring of the bearing, the gear ring is coaxially connected to the lower surface of the rotating disk, and the hollow platform is also provided with a slot-type switch for detecting the origin position, a detection plate extending horizontally outward is connected to the gear ring, and the end of the detection plate extends into the groove of the slot-type switch, the servo motor is arranged below the base plate, the output end of the servo motor is connected to a reducer, and the output end of the reducer is provided with a gear meshing with the gear ring.

[0020] Further preferably, the automobile sun visor bracket assembly torque detection equipment also includes a body, the substrate lies across the middle of the body, a control box is provided at the upper end of the body, the display screen is arranged on the front surface of the control box, and start switches for controlling the rotation of the servo motor are provided on both sides of the body. When these two start switches are pressed at the same time, the servo motor starts and drives the rotating disk to rotate. An emergency stop switch is also provided on one side of the body, and the emergency stop switch and the start switch on this side are arranged on the same switch box. Grating scales are also provided on both sides of the front surface of the body, and the grating scales are located above the substrate, and their height corresponds to the placement table.

[0021] Further preferably, a through hole is provided in the center of the rotating disk, the fixed plate is fixed above the base plate through a support column, the lower end of the support column is connected to the base plate, the upper end passes through the hollow platform, and the through hole is connected to the center of the lower surface of the fixed plate.

[0022] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0023] The utility model provides a torque detection device for a car sun visor bracket assembly, comprising a base plate, a fixed plate fixed above the base plate, and a rotating plate rotatably arranged between the base plate and the fixed plate. The rotating plate is coaxial with the fixed plate, and its diameter is larger than the diameter of the fixed plate. A placement table is provided in the middle of the upper surface of the fixed plate, and a groove for placing the bracket assembly support plate is provided on the upper surface of the placement table. A clamping component for pressing the support plate against the groove is connected to the fixed plate. A blocking column extending vertically upward is connected to the annular area on the rotating plate that is not blocked by the fixed plate, so that its upper end is higher than the placement table, and the distance between it and the groove is 80% to 90% of the length of the bracket assembly shaft. When the rotating plate rotates, the blocking column can be used to block the end of the rotating shaft, so that the rotating shaft rotates relative to the support plate, thereby completing the torque test. The operation is convenient and efficient, the force direction is not easy to deviate, the force application position can remain unchanged, the accuracy of the detection result is better, and the fluctuation is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 、 Figure 2 It is a three-dimensional schematic diagram of a car sun visor bracket assembly in the prior art.

[0025] Figure 3 It is a main schematic diagram of a preferred embodiment of the utility model.

[0026] Figure 4 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle base plate, at this time, the clamping assembly is not clamped.

[0027] Figure 5 yes Figure 3 A three-dimensional enlarged schematic diagram of the hollow platform in the middle.

[0028] Figure 6 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle rotating disk and the baffle column.

[0029] Figure 7 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle fixing plate, clamping assembly and placement table. For ease of observation, the bracket assembly is hidden.

[0030] Figure 8 yes Figure 3 Schematic diagram of the middle clamping assembly when it is compressed.

[0031] Among them: 1. Bracket assembly; 2. Support plate; 3. Rotating shaft; 10. Base plate; 11. Hollow platform; 12. Slot switch; 13. Detection plate; 20. Fixed plate; 21. Placement table; 22. Groove; 221. Anti-fool step; 23. Clamping assembly; 231. Clamping cylinder; 232. Extension plate; 233. Clamping block; 234. Cylinder rod; 235. Silicone block; 24. Air vent; 25. Support column; 30. Rotating plate; 31. Stop column; 32. Milling plane; 33. Through hole; 40. Servo motor; 41. Reducer; 50. Display screen; 60. Machine body; 61. Control box; 62. Start switch; 63. Emergency stop switch; 64. Switch box; 65. Grating ruler. DETAILED DESCRIPTION

[0032] like Figures 3 to 8As shown, the present invention provides a torque detection device for an automobile sun visor bracket assembly, comprising: a base plate 10, a fixed plate 20, a rotating plate 30, a servo motor 40, a sensor, and a display screen 50. The base plate 10 extends horizontally, the fixed plate 20 is fixed above the base plate 10, and the rotating plate 30 is rotatably disposed between the base plate 10 and the fixed plate 20. The rotating plate 30 is coaxial with the fixed plate 20, and the diameter of the rotating plate 30 is larger than that of the fixed plate 20, preferably 1. 1 to 1.2 times; In this embodiment, a placement table 21 is provided in the middle of the upper surface of the fixed disk 20, and a groove 22 is opened on the upper surface of the placement table 21 for placing the support plate 2 of the bracket assembly 1. The fixed disk 20 is also connected to a clamping assembly 23 for pressing the support plate 2 on the groove 22. The clamping assembly 23 includes a clamping cylinder 231, an extension plate 232, and a clamping block 233. The clamping cylinder 231 is provided on the fixed disk 20 and is located on one side of the placement table 21. The cylinder of the clamping cylinder 231 The rod 234 extends vertically upward, the extension plate 232 is connected to the end of the cylinder rod 234 and extends horizontally in the direction of the axis of the fixed disk 20. The extension plate 232 is a telescopic extension plate. The pressing block 233 is connected to the end of the extension plate 232 away from the cylinder rod 234 and is located above the groove 22. When the cylinder rod 234 is retracted, the pressing block 233 can press the support plate 2 against the groove 22. The annular area on the rotating disk 30 that is not blocked by the fixed disk 20 is connected to a blocking column extending vertically upward. 31. The upper end of the blocking column 31 is higher than the placement table 21. The distance between the blocking column 31 and the groove 22 is 80% to 90% of the length of the rotating shaft 3 of the bracket assembly 1. When the rotating disk 30 rotates, the blocking column 31 can block the end of the rotating shaft 3, pushing the rotating shaft 3 to rotate relative to the support plate 2 to complete the torque test. The servo motor 40 is used to drive the rotating disk 30 to rotate. The sensor (not shown in the figure) is used to detect the real-time torque of the output shaft of the servo motor 40. The display screen 50 is used to display the detection value of the sensor.

[0033] The advantage of this setting is that when conducting a torque test, you only need to put the bracket assembly support plate in and press it against the groove, and then use the servo motor to drive the rotating disk to rotate. The operation is convenient and efficient, the force direction is not easy to deviate, the force position can remain unchanged, and the test results are more accurate and have less fluctuation.

[0034] In order to avoid damage to the surface of the support plate 2 when the support plate 2 is pressed, in this embodiment, a silicone block 235 is connected to the lower end of the pressing block 233 .

[0035] To avoid placing it upside down, an anti-mistake step 221 is provided in the groove 22 to support the support plate 2. To avoid excessive compression that makes it difficult to remove, a ventilation hole 24 is further provided on the placement platform 21, which is connected to the bottom of the groove 22 and passes through the side wall of the placement platform 21.

[0036] In this embodiment, there are two blocking posts 31, which are spaced apart along the circumferential direction of the rotating disk. The spacing between the two blocking posts 31 is 1.01 to 1.05 times the diameter of the end of the rotating shaft 3. When the support plate 2 is pressed against the groove 22, the two blocking posts 31 can clamp the end of the rotating shaft 3. Furthermore, the upper end of the blocking post 31 is provided with a milling surface 32 that matches the end of the rotating shaft 3.

[0037] In this embodiment, a hollow platform 11 for supporting the rotation of the rotating disk 30 is provided on the base plate 10. The hollow platform 11 includes a rotatable bearing and a ring gear connected to the inner ring or outer ring of the bearing. The ring gear is coaxially connected to the lower surface of the rotating disk 30. The hollow platform 11 is also provided with a slot switch 12 for detecting the origin position. A detection plate 13 extending horizontally outward is connected to the ring gear, and the end of the detection plate 13 extends into the groove of the slot switch 12. The servo motor 40 is arranged below the base plate 10. The output end of the servo motor 40 is connected to a reducer 41. The output end of the reducer 41 is provided with a gear meshing with the ring gear.

[0038] The automobile sun visor bracket assembly torque detection equipment also includes a body 60, a substrate 10 spanning the middle of the body 60, a control box 61 is provided at the upper end of the body 60, and a display screen 50 is arranged on the front surface of the control box 61. Start switches 62 for controlling the rotation of the servo motor 40 are provided on both sides of the body 60. When these two start switches 62 are pressed at the same time, the servo motor 40 starts and drives the rotating disk 30 to rotate. An emergency stop switch 63 is also provided on one side of the body 60. The emergency stop switch 63 and the start switch 62 on this side are arranged on the same switch box 64. Grating scales 65 are also provided on both sides of the front surface of the body 60. The grating scales 65 are located above the substrate 10, and their height corresponds to the placement table 21.

[0039] In this embodiment, a through hole 33 is provided in the center of the rotating disk 30, and the fixed plate 20 is fixed above the base plate 10 through the support column 25. The lower end of the support column 25 is connected to the base plate 10, and the upper end passes through the middle hole of the hollow platform 11 and the through hole 33 and is connected to the center of the lower surface of the fixed plate 20.

[0040] The following is an explanation of the detection principle of the torque detection equipment for the automobile sun visor bracket assembly:

[0041] 1. Obtain real-time torque feedback signals through the torque sensor installed inside the servo motor.

[0042] 2. Compare the torque feedback signal with the set torque to adjust and correct the output of the servo motor controller to achieve precise torque control.

[0043] 3. Sample the real-time torque of the servo motor through the PLC interface. Specifically, the rotating disk rotates 90 to 120 degrees, and the first point is collected starting from 40 degrees. A point is collected every 10 degrees. After the collection is completed, the average value is taken as the torque of the product for judgment.

[0044] 4. Compare the torque of the product with the torque obtained by manual measurement and make corrections to the PLC program.

[0045] It should be noted that the automated detection equipment to which the automobile sun visor bracket assembly torque detection equipment belongs must be equipped with components and control programs such as PLC, servo controller, etc. to achieve automatic control and detection. The settings of these components are conventional settings in this field and are not the invention point of this utility model, so they will not be repeated here.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A torque detection device for an automobile sun visor bracket assembly, comprising: substrate; a fixed plate, the fixed plate being fixed above the substrate; a rotating disk, the rotating disk being rotatably disposed between the base plate and the fixed disk, the rotating disk being coaxial with the fixed disk, and having a diameter greater than that of the fixed disk; Its characteristics are: A placement platform is provided in the middle of the upper surface of the fixed plate, and a groove is provided on the upper surface of the placement platform for placing the support plate of the bracket assembly. The fixed plate is also connected to a pressing component for pressing the support plate onto the groove; The annular area on the rotating disk that is not blocked by the fixed disk is connected to a blocking column extending vertically upward, the upper end of the blocking column is higher than the placement table, and the distance between the blocking column and the groove is 80% to 90% of the length of the bracket assembly shaft. When the rotating disk rotates, the blocking column can block the end of the rotating shaft, so that the rotating shaft rotates relative to the support plate to complete the torque test.

2. The torque detection device for the automobile sun visor bracket assembly according to claim 1, characterized in that: An anti-fouling step for supporting the support plate is provided in the groove, and an air vent which is in communication with the bottom of the groove is provided on the placement platform, and the air vent passes through the side wall of the placement platform.

3. The torque detection device for the automobile sun visor bracket assembly according to claim 1, characterized in that: The clamping assembly includes a clamping cylinder, an extension plate, and a clamping block. The clamping cylinder is arranged on the fixed plate and is located on one side of the placement table. The cylinder rod of the clamping cylinder extends vertically upward. The extension plate is connected to the end of the cylinder rod and extends horizontally in the direction of the axis of the fixed plate. The clamping block is connected to the end of the extension plate away from the cylinder rod and is located above the groove. When the cylinder rod retracts, the clamping block can press the support plate onto the groove.

4. The torque detection device for the automobile sun visor bracket assembly according to claim 3 is characterized in that: The lower end of the compression block is connected with a silica gel block.

5. The torque detection device for the automobile sun visor bracket assembly according to claim 1, characterized in that: There are two blocking posts, which are spaced apart along the circumferential direction of the rotating disk. The spacing between the two blocking posts is 1.01 to 1.05 times the end diameter of the rotating shaft. When the support plate is pressed against the groove, the two blocking posts can clamp the end of the rotating shaft.

6. The vehicle sun visor bracket assembly torque detection device according to claim 1, characterized in that: The upper end portion of the blocking column is provided with a milling plane matching the end portion of the rotating shaft.

7. The torque detection device for the automobile sun visor bracket assembly according to claim 1, characterized in that: The automobile sun visor bracket assembly torque detection device also includes a servo motor for driving the rotating disk to rotate, a sensor for detecting the real-time torque of the servo motor, and a display screen for displaying the detection value of the sensor.

8. The torque detection device for the automobile sun visor bracket assembly according to claim 7, characterized in that: A hollow platform for supporting the rotation of the rotating disk is provided on the base plate. The hollow platform includes a rotatable bearing and a gear ring connected to the inner ring or outer ring of the bearing. The gear ring is coaxially connected to the lower surface of the rotating disk. A slot switch for detecting the origin position is also provided on the hollow platform. A detection plate extending horizontally outward is connected to the gear ring, and the end of the detection plate extends into the groove of the slot switch. The servo motor is arranged below the base plate. The output end of the servo motor is connected to a reducer. The output end of the reducer is provided with a gear meshing with the gear ring.

9. The vehicle sun visor bracket assembly torque detection device according to claim 7, characterized in that: The automobile sun visor bracket assembly torque detection equipment also includes a body, the substrate lies across the middle of the body, a control box is provided at the upper end of the body, the display screen is arranged on the front surface of the control box, and start switches for controlling the rotation of the servo motor are provided on both sides of the body. When these two start switches are pressed at the same time, the servo motor starts and drives the rotating disk to rotate. An emergency stop switch is also provided on one side of the body, and the emergency stop switch and the start switch on this side are arranged on the same switch box. Grating scales are also provided on both sides of the front surface of the body. The grating scales are located above the substrate, and their height corresponds to the placement table.

10. The vehicle sun visor bracket assembly torque detection device according to claim 8, characterized in that: A through hole is provided in the center of the rotating disk, and the fixed plate is fixed above the base plate through a support column. The lower end of the support column is connected to the base plate, and the upper end passes through the hollow platform. The through hole is connected to the center of the lower surface of the fixed plate.

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