CN112556962A - Reliability test bed and method - Google Patents
Reliability test bed and method Download PDFInfo
- Publication number
- CN112556962A CN112556962A CN202011426033.4A CN202011426033A CN112556962A CN 112556962 A CN112556962 A CN 112556962A CN 202011426033 A CN202011426033 A CN 202011426033A CN 112556962 A CN112556962 A CN 112556962A
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- China
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- motor
- reliability test
- striking head
- output shaft
- clamping device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a reliability test bed and a method, wherein the reliability test bed comprises: the device comprises a base, a clamping device, a striking head, a first motor and a transmission assembly; the clamping device is arranged on the base and used for clamping the key switch; the striking head is arranged on the base at intervals of the clamping device and is arranged in a translation mode in the pressing direction close to and far away from the clamping device so as to press the key switch in the moving process of the striking head; the transmission assembly is connected with the output shaft of the first motor and the striking head respectively and used for converting the rotary motion of the output shaft of the first motor into the translational motion of the striking head along the pressing direction. Among the technical scheme of this application, through using first motor replacement cylinder and transmission assembly, convert the rotation of the output shaft of first motor into the translational motion of beating head along pressing the direction to change original cylinder drive's mode into motor drive, and the rotational speed of motor can pass through programming control, and then realized the control to the velocity of motion and the motion displacement of beating head.
Description
Technical Field
The invention relates to the technical field of reliability tests of vehicle keys, in particular to a reliability test bed and a reliability test method.
Background
At present, the reliability test of the key switch for the vehicle is generally performed by the following method: a plurality of small air cylinders are used for sequentially striking each key of the switch, so that the reliability test is completed, and the method can be completed only by a plurality of air cylinders and one fixing mechanism. The air pipe enables the plurality of air cylinders fixed on the support to stretch out and draw back through air source pressure, striking action on the sample piece is achieved in the stretching process, and reliability test circulation is completed. Although the method can be used for orderly testing a plurality of keys of the same switch, the acting stroke and the acting force of the air cylinder cannot be controlled, the damage degree of the switch is aggravated, the force application range and the operation stroke of the switch keys in related test standards have clear requirements, and if the acting stroke and the acting force of the air cylinder cannot be controlled, the test result is naturally influenced, and the judgment of the test result is influenced.
Disclosure of Invention
The invention mainly aims to provide a reliability test bed, aiming at improving the test effect of the traditional reliability test bed.
In order to achieve the above object, the present invention provides a reliability test bed for testing reliability of a key switch, wherein the reliability test bed comprises:
a base;
the clamping device is arranged on the base and used for clamping the key switch;
the striking head is arranged on the base at intervals of the clamping device and is arranged in a translation mode in the pressing direction close to and far away from the clamping device so as to press the key switch in the moving process of the striking head;
a first motor; and the number of the first and second groups,
and the transmission assembly is connected with the output shaft of the first motor and the striking head respectively, and is used for converting the rotary motion of the output shaft of the first motor into the translational motion of the striking head along the pressing direction.
Optionally, the clamping device is rotatably disposed relative to the base, and a rotation axis direction of the clamping device is the pressing direction;
the reliability test bed further comprises a second motor, and an output shaft of the second motor is in driving connection with the clamping device.
Optionally, the transmission assembly comprises:
and the screw rod mechanism is arranged at the joint of the transmission device and the output shaft of the first motor and is used for converting the rotation of the output shaft of the first motor into the translation of the striking head along the pressing direction.
Optionally, the base includes a mounting plate, and the mounting plate is disposed at a joint of the transmission device and the striking head.
Optionally, the transmission device further includes a limiting structure, the limiting structure has a movable channel along the pressing direction, and the movable channel is used for limiting the moving direction of the striking head.
Optionally, the reliability test platform still includes the curb plate, the curb plate is located the base, limit structure is including locating spacing groove on the curb plate, the spacing groove is followed press the direction to extend, the lateral part sliding connection spacing groove of mounting panel.
Optionally, an output shaft of the first motor is provided with a thread, and the transmission device is in threaded connection with the output shaft of the first motor, so that when the transmission device and the output shaft of the first motor rotate relatively, the transmission device drives the striking head to translate along the pressing direction.
In addition, the present application also provides a reliability test method, based on the reliability test bed described above, including the following steps:
s1: controlling the first motor to rotate forward by a first preset angle;
s2: controlling the first motor to rotate reversely by a first preset angle;
s3: and controlling the second motor to rotate by a second preset angle.
Optionally, the second preset angle is one of 30 °, 60 °, 90 °, 120 °, 180 ° and 360 °.
Optionally, after the step S3, the method further includes:
step S4: repeating the loop of steps S1-S3.
According to the technical scheme, the first motor is used for replacing the air cylinder, the transmission assembly is arranged, so that the rotation of the output shaft of the first motor is converted into the translation motion of the striking head along the pressing direction, the original air cylinder driving mode is changed into motor driving, the rotation speed of the motor can be controlled through programming, and the control of the motion speed and the motion displacement of the striking head is further realized. Compare in cylinder drive's instability, the technical scheme of this application can effectual control beat the moving speed and the motion displacement of head to the test effect of traditional reliability test bench has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic perspective view of one embodiment of a reliability test stand according to the present invention;
fig. 2 is a schematic front view of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Reliability test bed | 11 | |
| 20 | |
30 | Striking |
| 40 | |
50 | |
| 60 | Second electric machine |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, the reliability test of the key switch for the vehicle is generally performed by the following method: a plurality of small air cylinders are used for sequentially striking each key of the switch, so that the reliability test is completed, and the method can be completed only by a plurality of air cylinders and one fixing mechanism. The air pipe enables the plurality of air cylinders fixed on the support to stretch out and draw back through air source pressure, striking action on the sample piece is achieved in the stretching process, and reliability test circulation is completed. Although the method can be used for orderly testing a plurality of keys of the same switch, the acting stroke and the acting force of the air cylinder cannot be controlled, the damage degree of the switch is aggravated, the force application range and the operation stroke of the switch keys in related test standards have clear requirements, and if the acting stroke and the acting force of the air cylinder cannot be controlled, the test result is naturally influenced, and the judgment of the test result is influenced.
In view of the above, the present invention provides a reliability test bed 100, and fig. 1 to 2 show an embodiment of the reliability test bed 100 provided by the present invention, please refer to fig. 1 to 2, wherein the reliability test bed 100 includes: the base, the clamping device 20, the striking head 30, the first motor 40 and the transmission assembly 50; the clamping device 20 is arranged on the base, and the clamping device 20 is used for clamping the key switch; the striking head 30 is arranged on the base at intervals of the clamping device 20, and the striking head 30 is arranged in a translation manner in a pressing direction close to and far from the clamping device 20 so as to press the key switch in the moving process of the striking head 30; the transmission assembly 50 is connected to the output shaft of the first motor 40 and the striking head 30, respectively, and the transmission assembly 50 is configured to convert the rotational motion of the output shaft of the first motor 40 into the translational motion of the striking head 30 along the pressing direction.
The base refers to a carrier on which the clamping device 20, the striking head 30, the first motor 40 and the transmission assembly 50 are mounted, and may be a separate carrier, or an external floor, wall surface, or the like. The pressing direction may be any direction in space, for example, a direction of up, down, left, right, front, and back, and is not limited herein, and the motor may drive the holder 20 to approach the striking head 30 in the pressing direction, and is not limited herein.
In the technical scheme of the invention, the first motor 40 is used for replacing an air cylinder, and the transmission assembly 50 is arranged, so that the rotation of the output shaft of the first motor 40 is converted into the translational motion of the striking head 30 along the pressing direction, the original air cylinder driving mode is changed into motor driving, the rotation speed of the motor can be controlled by programming, and the control of the motion speed and the motion displacement of the striking head 30 is further realized. Compared with the instability of cylinder driving, the technical scheme of the application can effectively control the movement speed and the movement displacement of the striking head 30, thereby improving the test effect of the traditional reliability test bed 100.
In addition, in order to detect a plurality of switches on one key switch, the clamping device 20 is rotatably arranged relative to the base, and the rotation axis direction of the clamping device 20 is the pressing direction; the reliability test bed 100 further comprises a second motor 60, an output shaft of the second motor 60 is in driving connection with the clamping device 20, and the clamping device 20 is synchronously rotated through rotation of the output shaft of the second motor 60, so that other switches on the same key switch are rotated to be aligned with the striking head 30, and reliability tests are further performed on other switches on the same key switch.
Further, the form of the transmission assembly 50 may be various, and specifically, the transmission assembly 50 includes: the screw mechanism is disposed at a connection position of the transmission device and the output shaft of the first motor 40, and is configured to convert rotation of the output shaft of the first motor 40 into translation of the striking head 30 along the pressing direction, specifically, the output shaft of the first motor 40 may be used as a screw, and the transmission assembly 50 includes a screw nut, and the screw nut is screwed with the screw. The screw mechanism may be a ball screw or a screw, as long as the rotational motion of the output shaft of the first motor 40 can be converted into the translational motion of the striking head 30 in the pressing direction.
In addition, in order to facilitate the installation of striking head 30, the base includes mounting panel 11, mounting panel 11 set up in transmission with striking head 30's junction, thereby made things convenient for striking head 30's installation, in addition can also with clamping device 20 sets up the top of ampere rotating plate, so, when key switch is bulky, weight is heavier, mounting panel 11 can also play the supporting function of certain degree to key switch.
Further, in order to limit the moving direction of the striking head 30, so that the striking head 30 can only move along the pressing direction, the limiting structure has a moving channel along the pressing direction, and the moving channel is used to limit the moving direction of the striking head 30, so that the striking head 30 can only move along the pressing direction. Specifically, the limit structure may be a pipe sleeve, the striking head 30 is sleeved with the pipe sleeve, and certainly, the limit structure may also be a limit groove, more specifically, the reliability test bed 100 further includes a side plate, the side plate is disposed on the base, the limit structure includes a limit groove disposed on the side plate, the limit groove extends along the pressing direction, and the side portion of the mounting plate 11 is slidably connected to the limit groove. Therefore, the moving direction of the striking head 30 can be effectively and stably limited by the form of the limiting groove.
After the limitation of the limiting groove, the striking head 30 can be prevented from synchronously rotating along with the rotation of the output shaft of the first motor 40, at this time, the output shaft of the first motor 40 is provided with a thread, and the transmission device is in threaded connection with the output shaft of the first motor 40, so that when the transmission device and the output shaft of the first motor 40 rotate relatively, the transmission device moves along the pressing direction, thereby further simplifying the transmission assembly 50 and realizing simple and effective transmission.
In addition, the technical scheme of the application also provides a reliability test method, based on the reliability test bed, the method comprises the following steps:
s1: controlling the first motor to rotate forward by a first preset angle;
s2: controlling the first motor to rotate reversely by a first preset angle;
s3: and controlling the second motor to rotate by a second preset angle.
In the technical scheme of this embodiment, the first motor is controlled to rotate forward by a first preset angle, and the striking head is controlled to move a certain distance towards the clamping device, so as to clamp the key switch clamped by the clamping device, wherein the first preset angle is set according to the distance between the striking head and the key switch clamped by the clamping device, and can be obtained through experiments, and the first motor is controlled to rotate backward by the first preset angle; therefore, the striking head returns to the initial position, at the moment, the second motor is controlled to rotate by a second preset angle, so that other switches on the key switch are aligned with the striking head, and the control method of the embodiment can effectively test the reliability of the switches on the key switch through the striking head.
Further, the number of corresponding switches on a key switch may be different, and may be 1, 2, 3, 4, and the like, and preferably, the second preset angle is one of 30 °, 60 °, 90 °, 120 °, 180 °, and 360 ° to perform a reliability test on the number of corresponding switches on a key switch, and in addition, for performing the reliability test continuously, the step S3 further includes: step S4: the steps S1 to S3 are repeatedly circulated to achieve the test of persistence, and in addition, a step of counting may be added after the step S2 to count the number of times of pressing the key switch.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A reliability test stand for testing the reliability of a key switch, the reliability test stand comprising:
a base;
the clamping device is arranged on the base and used for clamping the key switch;
the striking head is arranged on the base at intervals of the clamping device and is arranged in a translation mode in the pressing direction close to and far away from the clamping device so as to press the key switch in the moving process of the striking head;
a first motor; and the number of the first and second groups,
and the transmission assembly is connected with the output shaft of the first motor and the striking head respectively, and is used for converting the rotary motion of the output shaft of the first motor into the translational motion of the striking head along the pressing direction.
2. The reliability test stand of claim 1, wherein the clamping device is rotatably disposed with respect to the base, and a rotational axis direction of the clamping device is the pressing direction;
the reliability test bed further comprises a second motor, and an output shaft of the second motor is in driving connection with the clamping device.
3. The reliability test rig of claim 2, wherein the transmission assembly comprises:
and the screw rod mechanism is arranged at the joint of the transmission device and the output shaft of the first motor and is used for converting the rotation of the output shaft of the first motor into the translation of the striking head along the pressing direction.
4. The reliability test bed of claim 2, wherein the base includes a mounting plate disposed at a connection of the transmission and the stunning head.
5. The reliability test bed of claim 4, wherein the transmission further comprises a limiting structure having a moving channel along the pressing direction, the moving channel being configured to limit the moving direction of the striking head.
6. The reliability test bed of claim 5, further comprising a side plate disposed on the base, wherein the limiting structure comprises a limiting groove disposed on the side plate, the limiting groove extends along the pressing direction, and a side portion of the mounting plate is slidably connected with the limiting groove.
7. The reliability test bed of claim 6, wherein the output shaft of the first motor is provided with threads, and the transmission device is in threaded connection with the output shaft of the first motor, so that the transmission device drives the striking head to translate along the pressing direction when the transmission device and the output shaft of the first motor rotate relatively.
8. A reliability test method based on the reliability test stand of any one of claims 2 to 7, comprising the steps of:
s1: controlling the first motor to rotate forward by a first preset angle;
s2: controlling the first motor to rotate reversely by a first preset angle;
s3: and controlling the second motor to rotate by a second preset angle.
9. The reliability test method of claim 8, wherein the second preset angle is one of 30 °, 60 °, 90 °, 120 °, 180 °, and 360 °.
10. The reliability testing method of claim 9, further comprising, after the step S3:
step S4: repeating the loop of steps S1-S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426033.4A CN112556962A (en) | 2020-12-07 | 2020-12-07 | Reliability test bed and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426033.4A CN112556962A (en) | 2020-12-07 | 2020-12-07 | Reliability test bed and method |
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| Publication Number | Publication Date |
|---|---|
| CN112556962A true CN112556962A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011426033.4A Pending CN112556962A (en) | 2020-12-07 | 2020-12-07 | Reliability test bed and method |
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| CN (1) | CN112556962A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880311A (en) * | 2015-06-19 | 2015-09-02 | 长春工业大学 | Poking endurance testing device of vehicle combined switch |
| CN205941821U (en) * | 2016-08-15 | 2017-02-08 | 上海竟田电器检测技术有限公司 | Switch life detects machine |
| CN108398258A (en) * | 2018-05-14 | 2018-08-14 | 五邑大学 | A kind of key switch endurance testing device |
| CN110045278A (en) * | 2019-05-21 | 2019-07-23 | 佛山赛宝信息产业技术研究院有限公司 | A kind of comprehensive durability-testing machines of vehicle switch |
-
2020
- 2020-12-07 CN CN202011426033.4A patent/CN112556962A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880311A (en) * | 2015-06-19 | 2015-09-02 | 长春工业大学 | Poking endurance testing device of vehicle combined switch |
| CN205941821U (en) * | 2016-08-15 | 2017-02-08 | 上海竟田电器检测技术有限公司 | Switch life detects machine |
| CN108398258A (en) * | 2018-05-14 | 2018-08-14 | 五邑大学 | A kind of key switch endurance testing device |
| CN110045278A (en) * | 2019-05-21 | 2019-07-23 | 佛山赛宝信息产业技术研究院有限公司 | A kind of comprehensive durability-testing machines of vehicle switch |
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Application publication date: 20210326 |
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