Soft shaft strength testing device

Abstract

The utility model discloses a kind of soft shaft strength testing devices, including soft shaft fixing mechanism, transmission mechanism, driving mechanism, torsion sensing mechanism and main control circuit;The soft shaft fixing mechanism is used to fix the first part of the soft shaft to be measured;The transmission mechanism is equipped with a plurality of first teeth, and the first tooth can be engaged with the second tooth of the soft shaft;The transmission mechanism is engaged with the second part of the soft shaft;The driving mechanism is connected with the transmission mechanism, and the transmission mechanism can be driven to act, so that the transmission mechanism can drive the soft shaft to be measured to stretch;The torsion sensing mechanism is connected with the driving mechanism, and the torsion data applied by the driving mechanism can be sensed;The output end of the torsion sensing mechanism is connected with the input end of the main control circuit, and the sensed torsion data can be sent to the main control circuit.The soft shaft strength testing device proposed in the utility model can test the strength of soft shaft teeth, and is more specific, thereby improving the reliability of product.

Description

Technical Field

[0001] This utility model belongs to the field of measurement and testing technology, and relates to a strength testing device, and more particularly to a flexible shaft strength testing device. Background Technology

[0002] The flexible shaft is the driving component for the operation of a car sunroof. It works in conjunction with the sunroof motor and mechanical assembly to enable the sunroof glass to be pulled.

[0003] The flexible shaft has teeth, and the strength of the teeth affects the reliability of its transmission. Existing verification methods involve testing on automotive sunroof assemblies, which is not very specific; there is currently no testing method specifically for automotive sunroof flexible shafts.

[0004] In view of this, there is an urgent need to design a testing method for automotive sunroof flexible shafts in order to overcome at least some of the aforementioned shortcomings of existing testing methods. Utility Model Content

[0005] This invention provides a flexible shaft strength testing device that can test the strength of flexible shaft teeth, making it more targeted and thus improving product reliability.

[0006] To solve the above-mentioned technical problems, according to one aspect of this utility model, the following technical solution is adopted:

[0007] A flexible shaft strength testing device, the testing device comprising: a flexible shaft fixing mechanism, a transmission mechanism, a drive mechanism, a torque sensing mechanism, and a main control circuit;

[0008] The flexible shaft fixing mechanism is used to fix the first part of the flexible shaft to be tested; the transmission mechanism is provided with a plurality of first teeth, which can mesh with the second teeth of the flexible shaft to be tested;

[0009] The transmission mechanism engages with the second part of the flexible shaft under test; the drive mechanism is connected to the transmission mechanism and can drive the transmission mechanism to move, so that the transmission mechanism can drive the flexible shaft under test to extend.

[0010] The torque sensing mechanism is connected to the drive mechanism and can sense the torque data applied by the drive mechanism; the output end of the torque sensing mechanism is connected to the input end of the main control circuit and can send the sensed torque data to the main control circuit.

[0011] In one embodiment of this utility model, the flexible shaft to be tested is fixed here, and the rear torque wrench is connected to the spur gear. Turning the torque wrench causes the gear to collide with the flexible shaft. When the impact force reaches the set value of the torque wrench and there is no abnormal change in the flexible shaft gear, the test is qualified.

[0012] As one embodiment of the present invention, the flexible shaft fixing mechanism includes a first support and a movable fixing mechanism, wherein the first support is used to support the first part of the flexible shaft to be tested.

[0013] The movable fixing mechanism is adjustable and can cooperate with the first support in the first state to fix the first part of the flexible shaft to be tested.

[0014] As one embodiment of the present invention, the flexible shaft fixing mechanism further includes a base, a first bracket and a longitudinal slide, and the movable fixing mechanism includes a clamping mechanism, a slider and an adjusting mechanism;

[0015] The first support and the first bracket are provided based on the base; the longitudinal slide is provided based on the first bracket, and the slider can slide along the longitudinal slide; the adjustment mechanism is connected to the slider and can adjust the height of the slider;

[0016] The clamping mechanism is located below the slider, and the lower part of the clamping mechanism is provided with a groove that can clamp the flexible shaft; when the flexible shaft to be tested is fixed, the flexible shaft to be tested is located between the groove and the first support.

[0017] In one embodiment of this utility model, the adjusting mechanism includes an adjusting rod, a connecting rod, a first connecting rod, a second connecting rod, and a fixing frame; the fixing frame is disposed on the first support.

[0018] The upper part of the fixing frame is movably connected to the first end of the adjusting rod; the lower part of the fixing frame is provided with a sleeve, and the connecting rod is nested in the sleeve and can move up and down along the sleeve;

[0019] The adjusting rod includes a first adjusting rod unit and a second adjusting rod unit, the first adjusting rod unit being connected to the second adjusting rod unit; the first end of the first adjusting rod unit is movably connected to the upper part of the fixed frame;

[0020] The second end of the first adjusting rod unit is connected to the first end of the second adjusting rod unit, and the second end of the first adjusting rod unit is connected to the first end of the first connecting rod and the first end of the second connecting rod, respectively.

[0021] The first end of the connecting rod is connected to the second end of the first connecting rod and the second end of the second connecting rod, and the second end of the connecting rod is connected to the slider.

[0022] In one embodiment of this utility model, the upper surface of the first support has a non-smooth structure.

[0023] In one embodiment of this utility model, the transmission mechanism includes a gear; a first through hole is provided in the middle of the transmission mechanism, and the driving mechanism passes through the first through hole.

[0024] In one embodiment of this utility model, the flexible shaft strength testing device includes a torque wrench, which serves as both the driving mechanism and the torque sensing mechanism; the torque wrench is an electric torque wrench, a pneumatic torque wrench, a hydraulic torque wrench, or a manual torque wrench.

[0025] In one embodiment of this utility model, the flexible shaft strength testing device further includes a second bracket; the second bracket is provided with a second through hole, and the output shaft of the drive mechanism passes through the second through hole and is connected to the transmission mechanism.

[0026] In one embodiment of the present invention, the flexible shaft strength testing device further includes a second support; the second support is disposed below the transmission mechanism, so that the second part of the flexible shaft to be tested can be disposed above the second support.

[0027] The beneficial effects of this utility model are as follows: the flexible shaft strength testing device proposed in this utility model can test the strength of the flexible shaft teeth, which is more targeted and thus improves the reliability of the product. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a flexible shaft strength testing device in one embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of a flexible shaft strength testing device in one embodiment of the present invention.

[0030] Figure 3 This is a partial structural schematic diagram of the flexible shaft strength testing device in one embodiment of the present invention.

[0031] Figure 4 This is a partial structural schematic diagram of the flexible shaft strength testing device in one embodiment of the present invention.

[0032] Figure 5 This is a partial structural schematic diagram of the flexible shaft strength testing device in one embodiment of the present invention.

[0033] Figure 6 This is a partial structural schematic diagram of the flexible shaft strength testing device in one embodiment of the present invention.

[0034] Figure 7 This is a schematic diagram of the control section of the flexible shaft strength testing device in one embodiment of the present invention. Detailed Implementation

[0035] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0036] To further understand this utility model, preferred embodiments of this utility model are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the scope of the claims of this utility model.

[0037] The description in this section pertains to only a few typical embodiments, and this utility model is not limited to the scope of the embodiments described. Substitution of identical or similar prior art methods with some technical features in the embodiments is also within the scope of this utility model's description and protection.

[0038] The term "connection" in the specification includes both direct and indirect connections, such as connections made through active devices, passive devices, or electrical conduction media; it may also include connections made by other active or passive devices that are known to those skilled in the art and can achieve the same or similar functional purpose, such as connections made through circuits or components such as switches or follower circuits.

[0039] This utility model discloses a flexible shaft strength testing device. Figures 1 to 6 This is a schematic diagram of the structure of a flexible shaft strength testing device in one embodiment of the present invention. Figure 7 This is a schematic diagram of the control section of the flexible shaft strength testing device in one embodiment of the present invention; please refer to [link / reference]. Figures 1 to 7 The testing device includes: a flexible shaft fixing mechanism 1, a transmission mechanism 2, a drive mechanism 3, a torque sensing mechanism 4, and a main control circuit 5.

[0040] The flexible shaft fixing mechanism 1 is used to fix the first part of the flexible shaft 6 to be tested; the transmission mechanism 2 is provided with a plurality of first teeth, which can mesh with the second teeth of the flexible shaft 6 to be tested.

[0041] The transmission mechanism 2 engages with the second part of the flexible shaft 6 to be tested; the drive mechanism 3 is connected to the transmission mechanism 2 and can drive the transmission mechanism 2 to move, so that the transmission mechanism 2 can drive the flexible shaft 6 to be tested to extend.

[0042] The torque sensing mechanism 4 is connected to the drive mechanism 3 and can sense the torque data applied by the drive mechanism 3; the output end of the torque sensing mechanism 4 is connected to the input end of the main control circuit 5 and can send the sensed torque data to the main control circuit 5.

[0043] In one embodiment of the present invention, the flexible shaft fixing mechanism 1 includes a first support 11 and a movable fixing mechanism 12. The first support 11 is used to support the first part of the flexible shaft 6 to be tested. The movable fixing mechanism 12 is adjustable and can cooperate with the first support 11 in a first state to fix the first part of the flexible shaft 6 to be tested.

[0044] The flexible shaft fixing mechanism may further include a base 13, a first support 14, and a longitudinal slide rail 15. The movable fixing mechanism 12 includes a clamping mechanism 121, a slider 122, and an adjusting mechanism 123. The first support 11 and the first support 14 are based on the base 13; the longitudinal slide rail 15 is based on the first support 14, and the slider 122 can slide along the longitudinal slide rail 15; the adjusting mechanism 123 is connected to the slider 122 and can adjust the height of the slider 122. The clamping mechanism 121 is located below the slider 122, and the lower part of the clamping mechanism 121 is provided with a groove 124 that can clamp the flexible shaft 6 to be tested; in the state of fixing the flexible shaft 6 to be tested, the flexible shaft 6 to be tested is located between the groove 124 and the first support 11. In one embodiment, the upper surface of the first support 11 is designed as a non-smooth surface (e.g., it can be designed as an uneven surface), so as to better fix the flexible shaft 6 to be tested.

[0045] In one embodiment of this utility model, the adjusting mechanism 123 includes an adjusting rod 1231, a connecting rod 1232, a first connecting rod 1233, a second connecting rod 1234, and a fixing frame 1235; the fixing frame 1235 is disposed on the first support 14. The upper part of the fixing frame 1235 is movably connected to the first end of the adjusting rod 1231; the lower part of the fixing frame 1235 is provided with a sleeve 1236, and the connecting rod 1232 is nested in the sleeve 1236 and can move up and down along the sleeve 1236. The adjusting rod 1231 includes a first adjusting rod unit and a second adjusting rod unit, the first adjusting rod unit and the second adjusting rod unit being connected; the first end of the first adjusting rod unit is movably connected to the upper part of the fixing frame 1235. The second end of the first adjusting rod unit is connected to the first end of the second adjusting rod unit, and the second end of the first adjusting rod unit is respectively connected to the first end of the first connecting rod 1233 and the first end of the second connecting rod 1234. The first end of the connecting rod 1232 is connected to the second end of the first connecting rod 1233 and the second end of the second connecting rod 1234, respectively, and the second end of the connecting rod 1232 is connected to the slider 122.

[0046] In one embodiment of this utility model, the transmission mechanism 2 includes a gear; a first through hole is provided in the middle of the transmission mechanism, and the drive mechanism 3 passes through the first through hole. The flexible shaft strength testing device includes a torque wrench, which serves as both the drive mechanism and the torque sensing mechanism; the torque wrench is an electric torque wrench, a pneumatic torque wrench, a hydraulic torque wrench, or a manual torque wrench.

[0047] In one embodiment of this utility model, the flexible shaft strength testing device further includes a second bracket 16 and a second support 17; the second bracket 16 is provided with a second through hole, and the output shaft of the drive mechanism 3 passes through the second through hole and is connected to the transmission mechanism 2. The second support 17 is disposed below the transmission mechanism 2, so that the second part of the flexible shaft 6 to be tested can be disposed above the second support 17.

[0048] In one application scenario of this utility model, the first part of the flexible shaft 6 to be tested is fixed to the flexible shaft fixing mechanism 1, and the first tooth of the transmission mechanism 2 meshes with the second tooth of the second part of the flexible shaft 6 to be tested; the transmission mechanism 2 can be a circular gear with a first tooth on its periphery. A rear torque wrench is connected to the circular gear, and turning the torque wrench causes the gear to collide with the flexible shaft. When the impact force reaches the set value of the torque wrench and the flexible shaft gear does not change abnormally, the test is considered qualified.

[0049] In summary, the flexible shaft strength testing device proposed in this utility model can test the strength of flexible shaft teeth more specifically, thereby improving the reliability of the product.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The description and application of this utility model herein are illustrative and not intended to limit the scope of the utility model to the above embodiments. The effects or advantages involved in the embodiments may not be manifested in the embodiments due to various factors, and the description of effects or advantages is not intended to limit the embodiments. Variations and modifications of the embodiments disclosed herein are possible, and various substitutions and equivalents of the components in the embodiments are well known to those skilled in the art. It should be clear to those skilled in the art that this utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials, and parts without departing from the spirit or essential characteristics of this utility model. Other variations and modifications can be made to the embodiments disclosed herein without departing from the scope and spirit of this utility model.

Claims

1. A flexible shaft strength testing device, characterized in that, The testing device includes: a flexible shaft fixing mechanism, a transmission mechanism, a drive mechanism, a torque sensing mechanism, and a main control circuit; The flexible shaft fixing mechanism is used to fix the first part of the flexible shaft to be tested; the transmission mechanism is provided with a plurality of first teeth, which can mesh with the second teeth of the flexible shaft to be tested; The transmission mechanism meshes with the second part of the flexible shaft under test; the drive mechanism is connected to the transmission mechanism and can drive the transmission mechanism to move, so that the transmission mechanism can drive the flexible shaft under test to extend. The torque sensing mechanism is connected to the drive mechanism and can sense the torque data applied by the drive mechanism; the output end of the torque sensing mechanism is connected to the input end of the main control circuit and can send the sensed torque data to the main control circuit.

2. The flexible shaft strength testing device according to claim 1, characterized in that: The flexible shaft fixing mechanism includes a first support and a movable fixing mechanism, wherein the first support is used to support the first part of the flexible shaft to be tested; The movable fixing mechanism is adjustable and can cooperate with the first support in the first state to fix the first part of the flexible shaft to be tested.

3. The flexible shaft strength testing device according to claim 2, characterized in that: The flexible shaft fixing mechanism further includes a base, a first bracket, and a longitudinal slide rail; the movable fixing mechanism includes a clamping mechanism, a slider, and an adjusting mechanism. The first support and the first bracket are provided based on the base; the longitudinal slide is provided based on the first bracket, and the slider can slide along the longitudinal slide; the adjustment mechanism is connected to the slider and can adjust the height of the slider; The clamping mechanism is located below the slider, and the lower part of the clamping mechanism is provided with a groove that can clamp the flexible shaft to be tested; when the flexible shaft to be tested is fixed, the flexible shaft to be tested is located between the groove and the first support.

4. The flexible shaft strength testing device according to claim 3, characterized in that: The adjustment mechanism includes an adjustment rod, a connecting rod, a first connecting rod, a second connecting rod, and a fixing frame; the fixing frame is disposed on the first support. The upper part of the fixing frame is movably connected to the first end of the adjusting rod; the lower part of the fixing frame is provided with a sleeve, and the connecting rod is nested in the sleeve and can move up and down along the sleeve; The adjusting rod includes a first adjusting rod unit and a second adjusting rod unit, the first adjusting rod unit being connected to the second adjusting rod unit; the first end of the first adjusting rod unit is movably connected to the upper part of the fixed frame; The second end of the first adjusting rod unit is connected to the first end of the second adjusting rod unit, and the second end of the first adjusting rod unit is connected to the first end of the first connecting rod and the first end of the second connecting rod, respectively. The first end of the connecting rod is connected to the second end of the first connecting rod and the second end of the second connecting rod, and the second end of the connecting rod is connected to the slider.

5. The flexible shaft strength testing device according to claim 3, characterized in that: The upper surface of the first support has a non-smooth structure.

6. The flexible shaft strength testing device according to claim 1, characterized in that: The transmission mechanism includes gears; a first through hole is provided in the middle of the transmission mechanism, and the drive mechanism passes through the first through hole.

7. The flexible shaft strength testing device according to claim 1, characterized in that: The flexible shaft strength testing device includes a torque wrench, which serves as both the drive mechanism and the torque sensing mechanism; the torque wrench can be an electric torque wrench, a pneumatic torque wrench, a hydraulic torque wrench, or a manual torque wrench.

8. The flexible shaft strength testing device according to claim 1, characterized in that: The flexible shaft strength testing device further includes a second bracket; the second bracket is provided with a second through hole, through which the output shaft of the drive mechanism passes and is connected to the transmission mechanism.

9. The flexible shaft strength testing device according to claim 1, characterized in that: The flexible shaft strength testing device further includes a second support; the second support is disposed below the transmission mechanism, so that the second part of the flexible shaft to be tested can be disposed above the second support.

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