CN112504649A

CN112504649A - Durability testing device of knob

Info

Publication number: CN112504649A
Application number: CN202011357703.1A
Authority: CN
Inventors: 郝志诚; 郑传扬
Original assignee: Grg Metrology & Test Shenyang Co ltd
Current assignee: Grg Metrology & Test Shenyang Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-03-16

Abstract

The invention relates to a durability testing device of a knob, which comprises a first supporting piece, a second supporting piece and a driving mechanism. The first supporting piece is provided with a fixing part for fixing the knob, and the inclination angle of the fixing part relative to the horizontal plane is adjustable; the second supporting piece and the first supporting piece are oppositely arranged at intervals; the driving mechanism comprises a rotary driving piece and a rotary output shaft which are connected in a transmission mode, the rotary driving piece is connected with the second supporting piece in a rotating mode, and a first connecting portion used for being connected with the knob is arranged at one end, far away from the rotary driving piece, of the rotary output shaft. The central axis of the rotary output shaft and the central axis of the knob are on the same straight line, so that the rotary output shaft can reliably and effectively transmit torque to the knob, the knob is stressed uniformly, the testing accuracy is guaranteed, and the knob is prevented from being damaged due to uneven stress.

Description

Durability testing device of knob

Technical Field

The invention relates to the technical field of testing devices, in particular to a durability testing device for a knob.

Background

Knobs are commonly used in various fields, for example, many knobs are used in a central control part of an automobile. In order to ensure that the knob can work continuously and reliably, the durability test device is required to be used for carrying out the durability test on the knob. Because the actual installation scenes of various knobs are greatly different, the traditional durability testing device cannot accurately test the durability of the knobs.

Disclosure of Invention

In view of the above, it is necessary to provide a durability test device for a rotary knob, which is directed to a problem that durability of the rotary knob cannot be accurately tested.

The technical scheme is as follows:

in one aspect, there is provided a durability test apparatus of a knob, including:

the first supporting piece is provided with a fixing part for fixing the knob, and the inclination angle of the fixing part relative to the horizontal plane is adjustable;

the second support piece is arranged opposite to the first support piece at a certain interval; and

the driving mechanism comprises a rotary driving piece and a rotary output shaft which are connected in a transmission mode, the rotary driving piece is connected with the second supporting piece in a rotating mode, and one end, far away from the rotary driving piece, of the rotary output shaft is provided with a first connecting portion used for being connected with the knob.

The technical solution is further explained below:

in one embodiment, the durability testing device of the knob further comprises an adapter rotatably connected with the second support, and the adapter is provided with a second connecting part fixedly connected with the rotary driving part.

In one embodiment, the second supporting member includes a first supporting column and a second supporting column which are arranged at an interval, and both the first supporting column and the second supporting column are rotatably connected with the adapter.

In one embodiment, the rotary driving member is provided with a first connecting hole, the second connecting part is provided with a second connecting hole correspondingly communicated with the first connecting hole, and the durability testing device of the knob further comprises a fastener capable of being tightly matched with the first connecting hole and the second connecting hole.

In one embodiment, a torque detection element is further disposed between the first connecting portion and the rotary transmission shaft.

In one embodiment, the first connecting portion comprises a jaw, and the clamping width of the jaw is adjustable.

In one embodiment, the durability testing device of the knob further comprises a controller, and the controller is electrically connected with the rotary driving member.

In one embodiment, the durability testing device of the knob further comprises a display element, and the display element is electrically connected with the controller.

In one embodiment, the first support comprises a support table, and the fixing part is rotatably connected with the support table.

In one embodiment, the durability testing device of the knob further comprises a locking piece, and the locking piece can be in locking fit with the supporting platform and the fixing part.

The durability testing device for the knob of the embodiment fixes the knob on the fixing part when the durability of the knob needs to be tested, and enables the posture of the knob to be the same as the actual using posture by adjusting the inclination angle of the fixing part relative to the horizontal plane; the rotary driving piece is rotationally connected with the second supporting piece, so that the inclination angle of the rotary driving piece relative to the horizontal plane is adjusted, and the inclination angle of the rotary output shaft relative to the horizontal plane is adjusted until the central axis of the rotary output shaft and the central axis of the knob are on the same straight line; then connecting the first connecting part on the rotary output shaft with the knob; the rotary driving piece is started to rotate, the rotary output shaft can be driven to rotate, and then the knob is driven to rotate, so that the durability of the knob is tested. According to the durability testing device for the knob, the central axis of the rotating output shaft and the central axis of the knob are on the same straight line, so that the rotating output shaft can reliably and effectively transmit torque to the knob, the knob is uniformly stressed, the testing accuracy is guaranteed, and the knob is prevented from being damaged due to uneven stress; moreover, by adjusting the inclination angle of the fixing part relative to the horizontal plane and the inclination angle of the rotary output shaft relative to the horizontal plane, the actual installation scene of the knob can be simulated for testing, and the accuracy of the test result can also be ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a durability test apparatus for a knob according to an embodiment.

Description of reference numerals:

10. the durability test device of the knob comprises a first support piece 100, a first support piece 110, a fixing portion 120, a support table 200, a second support piece 210, a first support column 220, a second support column 300, a driving mechanism 310, a rotary driving piece 320, a rotary output shaft 321, a first connecting portion 3211, a clamping jaw 400, an adapter piece 500, a torque detection element 600, a controller 700, a display element 800, a workbench 1000 and the knob.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, in one embodiment, a durability testing apparatus 10 for a knob is provided, which includes a first support 100, a second support 200, and a driving mechanism 300. Wherein, the first supporting member 100 is provided with a fixing portion 110 for fixing the knob 1000, and an inclination angle (shown as α in fig. 1) of the fixing portion 110 relative to a horizontal plane is adjustable; the second support 200 is spaced from the first support 100; the driving mechanism 300 includes a rotary driving member 310 and a rotary output shaft 320, the rotary driving member 310 is rotatably connected to the second supporting member 200, and a first connecting portion 321 for connecting with the knob 1000 is disposed at an end of the rotary output shaft 320 far away from the rotary driving member 310.

In the durability testing device 10 for the knob according to the above embodiment, when the durability of the knob 1000 needs to be tested, the knob 1000 is fixed to the fixing portion 110, and the posture of the knob 1000 is made to be the same as the actual use posture by adjusting the inclination angle of the fixing portion 110 with respect to the horizontal plane; then, the rotary driving member 310 is rotationally connected with the second supporting member 200, so that the inclination angle of the rotary driving member 310 relative to the horizontal plane is adjusted, and the inclination angle of the rotary output shaft 320 relative to the horizontal plane is adjusted until the central axis of the rotary output shaft 320 and the central axis of the knob 1000 are on the same straight line; then, the first connecting part 321 on the rotary output shaft 320 is connected with the knob 1000; when the rotary driving member 310 is turned on, the rotary output shaft 320 is driven to rotate, and the knob 1000 is driven to rotate, so as to perform the durability test on the knob 1000. In the durability testing device 10 of the knob according to the above embodiment, the central axis of the rotating output shaft 320 is on the same straight line as the central axis of the knob 1000, so that the rotating output shaft 320 can reliably and effectively transmit the torque to the knob 1000, the knob 1000 is uniformly stressed, the testing accuracy is ensured, and the knob 1000 is prevented from being damaged due to uneven stress; in addition, by adjusting the inclination angle of the fixing part 110 and the inclination angle of the rotary output shaft 320 relative to the horizontal plane, the actual installation scene of the knob 1000 can be simulated for testing, and the accuracy of the test result can also be ensured.

The first support 100 and the second support 200 may be in the form of a support frame, a support rod, a support table, or the like. The distance between the second supporting member 200 and the first supporting member 100 can be flexibly adjusted according to actual test requirements, and only the requirement that the first connecting portion 321 can be connected with the knob 1000 is met. The durability test device 10 of the knob may further include a workbench 800, and the first supporting member 100 and the second supporting member 200 may be fixedly mounted on the workbench 800 by means of screwing, riveting, or the like.

Additionally, the rotary drive 310 may be a stepper motor, a servo motor, or other element capable of providing torque; the rotary drive 310 is preferably a component that provides both forward and reverse rotation, allowing for more flexible testing of the durability of the knob 1000.

The rotation connection between the rotary driving member 310 and the second supporting member 200 can be achieved directly through a hinge or a rotating shaft, or an intermediate element can be present, and only when the rotary driving member 310 rotates relative to the second supporting member 200, the inclination angle of the central axis of the rotary output shaft 320 relative to the horizontal plane can be adjusted correspondingly.

As shown in fig. 1, in one embodiment, the durability test apparatus 10 of the knob further includes an adaptor 400 rotatably coupled to the second support 200. The adaptor 400 is provided with a second connecting portion (not shown) that can be fixedly connected to the rotary driver 310. In this way, after the rotary driving member 310 is fixed on the adaptor 400 by the second connecting portion, the adaptor 400 is rotated relative to the second supporting member 200, so as to adjust the inclination angle of the rotary output shaft 320 relative to the horizontal plane, and further to make the central axis of the rotary output shaft 320 and the central axis of the knob 1000 be on the same straight line. The adaptor 400 may be an adaptor plate, an adaptor socket, an adaptor strip, or the like; the adaptor 400 may be pivotally connected to the second support member 200 by means of a hinge, a shaft hole fit, or the like.

As shown in fig. 1, the second support 200 further includes a first support column 210 and a second support column 220 disposed at an opposite interval. The first supporting column 210 and the second supporting column 220 are rotatably connected to the adaptor 400. Therefore, the first support column 210 and the second support column 220 are used for supporting the adaptor 400 at the same time, so that the rotary driving piece 310 fixedly arranged on the adaptor 400 can be stably placed, the rotary driving piece 310 is prevented from shaking or swaying in the working process, the stability of torque output is ensured, and the accuracy and reliability of the test are further caused; in addition, the inclination angle of the rotary output shaft 320 relative to the horizontal plane can be adjusted only by rotating the adaptor 400 relative to the first support column 210 and the second support column 220. Similarly, the rotation connection between the adaptor 400 and the first support column 210 and the second support column 220 can also be realized by means of hinge or shaft hole matching.

Wherein, the fixed connection of second connecting portion and rotary driving piece 310 can be realized through modes such as joint, grafting, spiro union or riveting, only need satisfy can realize stable, reliable installation fixed can.

In one embodiment, the rotary driving member 310 is provided with a first connecting hole (not shown), the second connecting hole is provided with a second connecting hole (not shown) correspondingly communicated with the first connecting hole, and the durability testing device 10 of the knob further comprises a fastening member (not shown) capable of being tightly matched with the first connecting hole and the second connecting hole. Therefore, the fastening piece is tightly matched with the first connecting hole and the second connecting hole, so that the rotary driving piece 310 can be stably and reliably fixed on the adapter 400, the installation and fixation of the rotary output shaft 320 are further realized, and the inclination angle of the rotary output shaft 320 relative to the horizontal plane can be adjusted only by adjusting the inclination angle of the adapter 400 relative to the horizontal plane. The first connecting hole and the second connecting hole can be threaded holes, and the fastener can be a screw or a bolt which can be in threaded connection with the threaded holes; the first connecting hole and the second connecting hole can also be jacks, and the fastening piece can be a plug pin capable of being matched with the jacks in an inserting mode. At least two second connecting holes can be formed in the adaptor 400 along the central axis direction of the rotary output shaft 320, and the rotary driving member 310 can flexibly adjust the position of the adaptor 400 according to actual conditions by correspondingly communicating with the first connecting holes through different second connecting holes and combining with fastening of a fastening member.

As shown in fig. 1, in addition, in order to ensure the accuracy of the test result, a torque detection element 500 may be disposed between the first connection portion 321 and the rotation transmission shaft, and the torque detection element 500 detects the torque transmitted from the rotation output shaft 320 to the first connection portion 321, so as to further control the torque output condition of the rotation driving member 310, and further establish a corresponding relationship between the torque and the durability of the knob 1000, which is beneficial to the accuracy of the durability test of the knob 1000. The torque detecting element 500 may be a torque sensor disposed between the first connecting portion 321 and the rotation transmission shaft, or another conventional element capable of directly or indirectly detecting torque.

Wherein, the connection between the first connection portion 321 and the knob 1000 can be realized by ways such as socket joint, clamping or clamping, and only the requirement of enabling the rotary output shaft 320 to drive the knob 1000 to rotate is met.

As shown in fig. 1, in one embodiment, the first connection 321 includes a pawl 3211. Thus, the clamping jaw 3211 clamps the knob 1000, so that the torque of the rotating output shaft 320 is transmitted to the knob 1000, thereby driving the knob 1000 to rotate, and further testing the durability of the knob 1000. Also, a grip width (shown as L in fig. 1) of the jaws 3211 is adjustable. Through the centre gripping width of adjustment jack catch 3211 to make jack catch 3211 can carry out the centre gripping in order to accomplish the test to the knob 1000 of equidimension not, the commonality is strong. The jaws 3211 may be triangular jaws 3211 with adjustable clamping width, and are stable in clamping and not easy to fall off. The structure of the jaws 3211 may be a ratchet structure on existing wrenches.

In addition, in order to realize accurate control over each component and ensure that each component can accurately and reliably execute corresponding actions, a corresponding control device can be arranged, so that the durability testing device 10 of the knob is more intelligent and automatic, the testing precision is ensured, and the testing efficiency is improved.

As shown in fig. 1, in one embodiment, the durability testing apparatus 10 further includes a controller 600, and the controller 600 is electrically connected to the rotary driving member 310. So, utilize the controller 600 can control the start-up and the stop of rotary driving piece 310, can also control rotary driving piece 310's turned angle and rotation direction, also can control rotary driving piece 310's slew velocity, and then make rotary driving piece 310's rotation mode, the change or the combination that the rotation state isoparametric can be nimble, make the test more diversified, the commonality is strong, can satisfy different test requirements, also make the test press close to the in-service use scene and use habit more, the accuracy of test is high. The controller 600 may also be electrically connected to the torque detecting element 500, so as to record the torque, thereby facilitating to establish a relationship curve between the torque and the durability; the controller 600 can also be electrically connected with the jaws 3211 to control the clamping or releasing of the jaws 3211, which is more intelligent and automatic. The controller 600 may be an element having a control function, such as a single chip microcomputer or a control circuit board, or may be a device capable of implementing human-computer interaction through a touch screen or a key, such as a control box or a console.

As shown in fig. 1, the durability test apparatus 10 further includes a display device 700, and the display device 700 is electrically connected to the controller 600. In this way, the display element 700 can be used to display the corresponding parameters or states in real time, so that the operator can conveniently control the testing conditions of the durability testing device 10 of the knob in real time, such as the rotation speed, the rotation direction, the rotation period, the rotation angle, etc. of the rotary driving member 310; meanwhile, the display element 700 can modify and preset corresponding parameters, so that human-computer interaction is realized. The display element 700 may be an element having a display function, such as a display screen.

In addition, the electrical connection mode can be realized by a wired connection mode such as a data line, and can also be realized by a wireless connection mode such as Bluetooth transmission.

In addition, the fixing of the fixing part 110 to the knob 1000 can be realized in a clamping fixing mode (at this time, the fixing part 110 can be a chuck), and can also be realized in a clamping fixing mode (at this time, the fixing part 110 can be a clamping sleeve), and only the requirement that the knob 1000 can be stably and reliably fixed to meet the test requirement needs to be met. The inclination angle of the fixing portion 110 relative to the horizontal plane is adjustable, which means that the included angle between the length direction of the fixing portion 110 and the horizontal plane is adjustable, for example, when the fixing portion 110 is a clamping sleeve, the included angle between the central axis of the clamping sleeve and the horizontal plane is adjustable; in addition, the inclination angle of the fixing portion 110 relative to the horizontal plane is adjustable, which can be realized by connecting the fixing portion 110 and the first supporting member 100 in a hinged or rotating manner, and the inclination angle of the fixing portion 110 relative to the horizontal plane can be adjusted by rotating the fixing portion 110 relative to the first supporting member 100.

As shown in fig. 1, in one embodiment, the first support 100 includes a support base 120, and the fixing portion 110 is pivotally connected to the support base 120 by a hinge or a rotating shaft. Therefore, the inclination angle of the fixing portion 110 relative to the horizontal plane can be adjusted correspondingly only by rotating the fixing portion 110 relative to the supporting table 120, which is simple and convenient, and improves the testing efficiency.

Further, the durability test apparatus 10 for a knob further includes a locking member (not shown) that can be locked and engaged with the support base 120 and the fixing portion 110. Thus, after the inclination angle of the fixing portion 110 relative to the horizontal plane is adjusted to a proper angle, the fixing portion 110 and the supporting table 120 can be locked into a whole by using the locking piece, so that the fixing portion 110 is prevented from shaking or moving relative to the supporting table 120 in the test process, and the reliability and accuracy of the test are ensured. Wherein, the locking cooperation between locking piece and brace table 120 and the fixed part 110 can be realized through joint complex mode, also can realize through the complex mode of pegging graft, only need satisfy can not influence fixed part 110 and support table 120 relatively and rotate, also can be reliable realize between fixed part 110 and the brace table 120 relatively fixed can. For example, corresponding insertion holes may be formed in both the support platform 120 and the fixing portion 110, the locking member may be a bolt, and after the fixing portion 110 rotates to a suitable position relative to the support platform 120, the bolt is inserted into the insertion hole, so that the support platform 120 and the fixing portion 110 can be locked; the support platform 120 may be provided with a hook, the fixing portion 110 may be provided with a buckle, and after the fixing portion 110 rotates to a suitable position relative to the support platform 120, the hook and the buckle may be engaged with each other to lock the support platform 120 and the fixing portion 110.

Similarly, the rotation of the rotary driving member 310 and the second supporting member 200, and the rotation of the adaptor 400 and the first supporting column 210 and the second supporting column 220 are connected, and the adaptor can be locked by combining with the corresponding locking member, so that stable and reliable relative fixation can be realized after rotation, and the structure of the locking member can be similar or identical, which is not described herein again.

The "certain body" and the "certain portion" may be a part corresponding to the "member", that is, the "certain body" and the "certain portion" may be integrally formed with the other part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A durability test device of a knob is characterized by comprising:

2. The durability test device of the knob according to claim 1, further comprising an adaptor rotatably connected to the second support member, the adaptor being provided with a second connecting portion capable of being fixedly connected to the rotary driving member.

3. The durability test device of the knob according to claim 2, wherein the second support member comprises a first support column and a second support column which are arranged at an interval, and the first support column and the second support column are rotatably connected with the adapter.

4. The durability test device of the knob according to claim 2, wherein the rotary driving member is provided with a first connection hole, the second connection part is provided with a second connection hole correspondingly communicating with the first connection hole, and the durability test device of the knob further comprises a fastening member capable of being tightly engaged with both the first connection hole and the second connection hole.

5. The durability test device of the knob according to claim 1, wherein a torque detecting element is further provided between the first connecting portion and the rotation transmitting shaft.

6. The durability test apparatus of the knob according to claim 1, wherein the first connection portion includes a jaw, and a clamping width of the jaw is adjustable.

7. The durability test device of the knob according to any one of claims 1 to 6, further comprising a controller electrically connected to the rotary driving member.

8. The durability test device of the knob according to claim 7, further comprising a display element, wherein the display element is electrically connected to the controller.

9. The durability test apparatus of the knob according to any one of claims 1 to 6, wherein the first supporter includes a support base, and the fixing portion is rotatably connected to the support base.

10. The durability test apparatus for knob according to claim 9, further comprising a locking member, wherein the locking member is adapted to be lockingly engaged with the support base and the fixing portion.