CN106525417B - High-low temperature endurance test device of knob type gear shifter with gear information monitoring function - Google Patents
High-low temperature endurance test device of knob type gear shifter with gear information monitoring function Download PDFInfo
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- CN106525417B CN106525417B CN201610952010.4A CN201610952010A CN106525417B CN 106525417 B CN106525417 B CN 106525417B CN 201610952010 A CN201610952010 A CN 201610952010A CN 106525417 B CN106525417 B CN 106525417B
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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
- G01M13/02—Gearings; Transmission mechanisms
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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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a high and low temperature endurance test device of a knob type gear shifter with a gear information monitoring function, which can drive a knob component of a tested knob type gear shifter to circularly rotate back and forth between a first gear position, namely a P gear position and a last gear position under a set temperature test condition, and stop when the knob component is controlled to rotate to each gear position so as to acquire a gear information real-time value for judging the accuracy of gear information; by providing a feedback mechanism, it is detected whether the telescopic shaft of the solenoid valve extends into the knob type gear shifter to be tested at the start of each rotation test, and if so, the solenoid valve is controlled to be energized and the knob member is driven to perform one cycle rotation. The invention can carry out high and low temperature endurance test on the tested knob type gear shifter and simultaneously detect the accuracy of the gear information of the tested knob type gear shifter, and has the advantages of high reliability of the detection result and capability of protecting the test equipment and the tested knob type gear shifter.
Description
Technical Field
The invention relates to a high and low temperature endurance test device of a knob type gear shifter with a gear information monitoring function.
Background
A high-low temperature test chamber is a test device in the engineering field. At present, with the increasing importance of enterprises on product quality, more products can be popularized after passing a high-low temperature endurance test, and therefore high-low temperature endurance equipment is increasingly widely used.
At present, the high and low temperature endurance test of the knob type gear shifter has the following defects:
firstly, the conventional automobile gear shifter mainly takes an in-line type and a broken-line type as main parts, and the corresponding high-low temperature endurance test box operating mechanism mostly makes a linear reciprocating motion. And the knob formula selector is rotary motion, and current test equipment can't satisfy the experimental requirement of knob formula selector.
Secondly, aiming at the gear shifter, the existing high-low temperature endurance test box can only test the endurance performance of a mechanical structure, and cannot synchronously detect and judge the accuracy of gear information in real time, so that the reliability of the electrical performance in the endurance test process cannot be inspected.
Thirdly, most of the existing high-low temperature test boxes are controlled in an open loop mode, deviation and even failure of an operating mechanism can occur along with the advance of a test process, so that the effectiveness of a test is influenced, and sample pieces and equipment can be damaged seriously to cause test accidents.
Fourth, the existing high-low temperature test chamber can only display limited information such as test temperature, time, frequency and the like in the test, can not monitor information such as the timely rotation angle, gear information and the state of the solenoid electromagnet of the sample piece comprehensively, and is not beneficial to comprehensively grasping design parameters.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a high low temperature endurance test device of knob formula selector of utensil gear information monitoring function.
The technical scheme adopted by the invention is as follows:
the utility model provides a utensil gear information monitoring function's high low temperature endurance test device of knob formula selector, is applicable to the knob formula selector that detects that has P shelves locking function, P shelves locking function is: when the solenoid electromagnet of the tested knob type gear shifter is powered off and the knob component is in a P gear position, the telescopic shaft of the solenoid electromagnet extends out of the interior of the tested knob type gear shifter to lock the knob component; and the telescopic shaft of the solenoid electromagnet actively extends to the outside of the tested knob type gear shifter when the solenoid electromagnet is electrified, and the telescopic shaft of the solenoid electromagnet passively extends to the outside of the tested knob type gear shifter under the action of a mechanical mechanism inside the tested knob type gear shifter when the knob component rotates away from the P-gear position, and the device is characterized in that:
the high-low temperature endurance test device is provided with a test box body, a rotary driving mechanism, an industrial personal computer, a temperature sensor, an air conditioning system and a feedback mechanism; the tested knob type gear shifter is located inside the test box body, the industrial personal computer can acquire the temperature inside the test box body in real time through the temperature sensor, can adjust the temperature inside the test box body through the air conditioning system, can drive a knob part of the tested knob type gear shifter to rotate through the rotary driving mechanism, can control the on-off state of a solenoid electromagnet of the tested knob type gear shifter, can acquire an electric signal generated by the tested knob type gear shifter when the knob part rotates in real time, and can detect the extending state of a telescopic shaft of the solenoid electromagnet in real time through the feedback mechanism;
the industrial computer is provided with at least a set of temperature test condition, each group the rotatory cycle number that the temperature test condition corresponds the knob part is in the rotation angle, gear dwell time and the outage interval time between two adjacent gears of knob formula selector that test to control high low temperature endurance test device according to following mode and carry out high low temperature endurance test, include:
adjusting the temperature inside the test box body to reach each group of temperature test conditions one by one;
executing a rotation test corresponding to the number of rotation cycles under each set of temperature test conditions;
detecting whether a telescopic shaft of the solenoid type electromagnet extends out of the tested knob type gear shifter or not when each rotation test is started: if not, ending the high and low temperature endurance test and judging that the high and low temperature endurance test device works abnormally; if yes, controlling the solenoid type electromagnet to be electrified, powering off after the power-off interval time, driving the knob component to circularly rotate once according to the rotation angle, wherein one-time circular rotation is a process that the knob component starts to rotate forward one by one to the last gear by the first gear position, namely the P gear position, and then reversely rotates one by one to return to the P gear position, and controlling the knob component to keep static for one gear position pause time and then rotate the next rotation angle when finishing rotation of each rotation angle, and collecting an electric signal generated when the knob component rotates when entering each gear position time and recording the electric signal as a gear position information real-time value of a corresponding gear position for judging the accuracy of gear position information, wherein the knob component can rotate away from the P gear position within the power-off interval time; the length of the gear pause time is enough for the telescopic shaft of the solenoid electromagnet to switch the extending state.
As a preferred embodiment of the present invention: the feedback mechanism consists of a metal ring, a thimble, a mounting seat, a first output line and a second output line; the metal ring is sleeved and fixed at the end part, close to the outside of the tested knob type gear shifter, of a telescopic shaft of the solenoid type electromagnet, the mounting seat is fixed relative to the tested knob type gear shifter, the ejector pin is fixed on the mounting seat, one end of the first output line is electrically connected with the metal ring, one end of the second output line is electrically connected with the ejector pin, and the other ends of the first output line and the second output line are used as output ends of the feedback mechanism; the metal ring can be pressed on the thimble when the telescopic shaft of the solenoid type electromagnet extends out of the tested knob type gear shifter, and the thimble is provided with a spring mechanism which can buffer the metal ring; and the industrial personal computer judges the extension shaft extension state of the solenoid electromagnet by detecting the electrical on-off state between the first output line and the second output line.
As a preferred embodiment of the present invention:
the industrial personal computer is also provided with a gear maximum deviation value;
the industrial personal computer control high low temperature endurance test device carry out high low temperature endurance test's mode, still include:
reading a gear information reference value of the tested knob type gear shifter corresponding to a P gear, calculating gear information reference values of other gears corresponding to the tested knob type gear shifter according to parameters of the tested knob type gear shifter, judging whether difference absolute values of each gear information real-time value obtained in each rotation test and the gear information reference value of the corresponding gear are smaller than the gear maximum deviation value, if so, judging that the gear information accuracy of the tested knob type gear shifter is qualified in the corresponding rotation test, otherwise, judging that the gear information accuracy of the tested knob type gear shifter is unqualified in the corresponding rotation test; and the gear information reference value is calibrated through function test and is stored in the tested knob type gear shifter.
As a preferred embodiment of the present invention: the high-low temperature endurance test device is also provided with an air conditioner control unit, a motor control unit, a CAN adapter card and an I/O port module; the industrial personal computer is electrically connected with the air conditioning system through the air conditioning control unit so as to control the air conditioning system to adjust the temperature in the test box body; the industrial personal computer is electrically connected with a motor of the rotary driving mechanism through the motor control unit so as to control the rotary driving mechanism to drive a knob component of the tested knob type gear shifter to rotate; the industrial personal computer is electrically connected with the output end of the tested knob type gear shifter, which outputs the electric signal generated when the knob component rotates, through the CAN adapter card so as to collect the electric signal generated when the knob component of the tested knob type gear shifter rotates in real time; the industrial computer passes through IO port module respectively with temperature sensor's output the solenoid formula electro-magnet control end that receives knob formula selector feedback mechanism's output electrical connection in order to acquire in real time the inside temperature of experimental box, control solenoid formula electro-magnet break-make electricity, real-time detection the telescopic shaft of solenoid formula electro-magnet stretches out the state.
As a preferred embodiment of the present invention: the high-low temperature endurance test device is also provided with an alarm indicator light for warning the high-low temperature endurance test device that the work is abnormal; the alarm indicator lamp is electrically connected with the industrial personal computer;
the industrial personal computer control high low temperature endurance test device carry out high low temperature endurance test's mode, still include:
identifying codes of the air conditioner control unit and the motor control unit in working, and if an error code is identified, judging that the high-low temperature endurance test device works abnormally;
and when the high-low temperature endurance test device is judged to work abnormally, the alarm indicator lamp is controlled to send out an alarm signal.
As a preferred embodiment of the present invention: the rotary driving mechanism consists of a servo motor, a speed reducer, a first bearing, a first universal joint, a connecting shaft, a second universal joint, a second bearing, a chuck tool and a shifter fixing tool, wherein the chuck tool consists of a shaft part and a chuck which are connected; servo motor's casing, the casing of reduction gear, first bearing, second bearing and the fixed frock relatively fixed of selector, servo motor's motor shaft is connected the input shaft of reduction gear, the output shaft of reduction gear is installed in the first bearing and loop through first universal joint, even axle and second universal joint are connected the axial region of chuck frock, the axial region of chuck frock is installed in the second bearing, it installs to receive knob formula selector on the fixed frock of selector, make the chuck of chuck frock can the straining receive on knob formula selector's the knob part.
In order to avoid the damage to the servo motor and the speed reducer of the rotary driving mechanism caused by the high and low temperature environment in the test box body, the invention is taken as a preferred embodiment: the test box body is a sealed box body with a shaft through hole and a wire harness hole in the box wall, the front side of the sealed box body is provided with a box door which is convenient for placing the tested knob type gear shifter inside the test box body, and the inner side of the box door is provided with a sealing strip for sealing the sealed box body;
the second universal joint, the second bearing, the chuck tool, the gear shifter fixing tool, the temperature sensor and the feedback mechanism are all located inside the test box body, the servo motor, the speed reducer, the first bearing and the first universal joint are all located outside the test box body, the connecting shaft penetrates through the shaft through hole and penetrates through the box wall of the test box body, a connecting wire harness between the industrial personal computer and the temperature sensor and between the industrial personal computer and the feedback mechanism penetrates through the box wall of the test box body through the wire harness hole, and heat insulation materials are filled in a gap between the shaft through hole and the connecting shaft and in a gap between the wire harness hole and the connecting wire harness.
In order to realize the visual monitoring of the high and low temperature endurance test device and comprehensively monitor the timely rotation angle, gear information, solenoid type electromagnet state and other information of the tested knob type gear shifter, the invention is taken as a preferred embodiment: the high-low temperature endurance test device is also provided with a display screen for displaying the working data of the high-low temperature endurance test device and a keyboard for operating the industrial personal computer; the display screen and the keyboard are respectively electrically connected with the industrial personal computer.
In order to facilitate movement of the high-low temperature durability test apparatus, as a preferred embodiment of the present invention: the high-low temperature endurance test device is also provided with a case and a main switch for controlling the power supply of the high-low temperature endurance test device; the universal wheel is installed to the bottom of machine case, experimental box and rotary driving mechanism's first bearing are all fixed the top surface of machine case, industrial computer, display screen, keyboard and air conditioning system all install the inside of machine case, industrial computer, display screen and keyboard are all in the front of machine case exposes, master switch air conditioning system's display screen and switch all are in the back of machine case exposes.
In order to understand the humidity inside the test chamber, as a preferred embodiment of the present invention: the high-low temperature endurance test device is also provided with a humidity sensor; the humidity sensor is located inside the test box body and electrically connected with the industrial personal computer.
As a preferred embodiment of the present invention: the high-low temperature endurance test device is additionally provided with at least one set of the rotary driving mechanism and the feedback mechanism.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the knob component of the tested knob type gear shifter can be driven to circularly rotate back and forth between a first gear position, namely a P gear position and a last gear position under the set temperature test condition so as to test the mechanical rotation durability of the tested knob type gear shifter in a high and low temperature state, and the knob component can be controlled to stop when rotating to each gear position so as to acquire a gear information real-time value for judging the accuracy of gear information;
in addition, the invention detects whether the telescopic shaft of the electromagnetic valve extends towards the interior of the tested knob type gear shifter or not by arranging the feedback mechanism when starting each rotation test, thereby judging whether the knob component is in the P gear position or not at the starting moment of each rotation test or not, and controlling the electromagnetic valve to be electrified and driving the knob component to perform one-time circulating rotation under the condition of detecting yes, thereby avoiding that the mechanical deviation of the rotation driving mechanism is accumulated too much to cause that the rotation driving mechanism can not bring the knob component back to the P gear position at the ending moment of the rotation test, namely: in the process of the rotation test, the knob component is not correctly stopped at the corresponding gear position when the industrial personal computer collects an electric signal generated by the rotation of the knob component, so that the gear information real-time value for judging the accuracy of the gear information is invalid, and the problems that the detection result of the accuracy of the gear information of the tested knob type gear shifter is unreliable and the detection of the accuracy of the gear information is invalid due to the fact that the knob component of the tested knob type gear shifter circularly rotates for many times (the durability test of the gear shifter generally requires more than 12 ten thousand times of circular rotation), the mechanical deviation of a rotation driving mechanism is amplified, and the knob component of the tested knob type gear shifter does not stop at the corresponding gear when the industrial personal computer collects the gear information real-time value in real time are solved; moreover, the situation that the rotary driving mechanism is damaged due to the fact that the rotary driving mechanism is driven to rotate backwards by the aid of the industrial personal computer which still controls the rotary driving mechanism to drive the rotary knob part to rotate backwards or the rotary knob part is driven to rotate forwards by the aid of the industrial personal computer which still controls the rotary driving mechanism to drive the rotary knob part to rotate forwards can be avoided;
therefore, the invention can detect the accuracy of the gear information of the tested knob type gear shifter while carrying out high and low temperature endurance test on the tested knob type gear shifter, and has the advantages of high reliability of the detection result and capability of protecting the test equipment and the tested knob type gear shifter.
Secondly, the invention can judge whether the accuracy of the gear information of the tested knob type gear shifter is qualified in the corresponding rotation test by comparing whether the absolute value of the difference value between the real-time value of each gear information obtained in each rotation test and the reference value of the gear information of the corresponding gear is smaller than the maximum deviation value of the gear, so as to verify the electric signal stability of the tested knob type gear shifter product under the high and low temperature conditions, and can comprehensively verify the whole working stability of the gear shifter by combining the test on the mechanical durability of the tested knob type gear shifter.
Thirdly, the invention detects the working abnormity of the high-low temperature endurance test device and warns the occurrence of the working abnormity by the alarm indicator lamp, thereby effectively reducing the test risk and reducing the working intensity of the tester.
Fourthly, the high-low temperature endurance test device can automatically run, test parameters are all input into the industrial personal computer at one time, and the test state is displayed through the display screen in real time, so that the working time and the intensity of test personnel are reduced, and the personnel cost is reduced.
Fifthly, the structure adopted by the rotary driving mechanism can accurately drive the rotation angle and the rotation speed of the knob component of the tested knob type gear shifter, meets the requirement of the mechanical rotation durability test of the knob type gear shifter, and the fixing tool of the gear shifter is replaceable and adjustable, thereby improving the adaptability to various knob type gear shifter products and reducing the equipment upgrading cost.
Sixth, the design of the test box structure and the installation mode of the rotary driving mechanism relative to the test box are adopted, so that the servo motor and the speed reducer of the rotary driving mechanism can be prevented from being damaged by high and low temperature environments in the test box, and the service life of the high and low temperature endurance test device is effectively prolonged.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a front view of a high and low temperature endurance testing apparatus of the present invention;
FIG. 2 is a rear view of the high and low temperature endurance testing apparatus of the present invention;
FIG. 3 is a schematic structural view of a rotary drive mechanism according to the present invention;
FIG. 4 is a schematic diagram of the feedback mechanism of the present invention;
FIG. 5 is a block diagram of the electrical connections of the industrial personal computer with the air conditioner control unit, the motor control unit, the CAN adapter card and the I/O port module in the present invention;
FIG. 6 is a flow chart of the high and low temperature endurance test device controlled by the industrial personal computer according to the present invention;
FIG. 7 is a flowchart of the present invention for an industrial personal computer to determine whether the accuracy of the gear information of the tested knob type gear shifter is qualified in the corresponding rotation test.
Detailed Description
As shown in fig. 1 to 5, the high and low temperature endurance test apparatus for a knob type shifter of the present invention is suitable for a tested knob type shifter having a P-range locking function: when the solenoid electromagnet of the tested knob type gear shifter is powered off and the knob component is positioned at the P gear position, the telescopic shaft of the solenoid electromagnet extends out of the interior of the tested knob type gear shifter to lock the knob component; and when the knob component rotates to leave the P-gear position, the telescopic shaft of the solenoid electromagnet passively extends out of the tested knob type gear shifter under the action of a mechanical mechanism in the tested knob type gear shifter.
The high-low temperature endurance test device is provided with a test box body 1, a rotation driving mechanism 2, an industrial personal computer 3, an alarm indicator lamp 4, an air conditioner control unit, a motor control unit, a CAN adapter card, an I/O port module temperature sensor, an air conditioning system and a feedback mechanism 8, wherein a tested knob type gear shifter is positioned inside the test box body 1.
Referring to fig. 3, the rotary driving mechanism 2 is composed of a servo motor 21, a speed reducer 22, a first bearing 23, a first universal joint 24, a connecting shaft 25, a second universal joint 26, a second bearing 27, a chuck tool 28 and a shifter fixing tool 29, wherein the chuck tool 28 is formed by connecting a shaft part and a chuck; the shell of the servo motor 21, the shell of the speed reducer 22, the first bearing 23, the second bearing 27 and the gear shifter fixing tool 29 are relatively fixed, the motor shaft of the servo motor 21 is connected with the input shaft of the speed reducer 22, the output shaft of the speed reducer 22 is installed in the first bearing 23 and is connected with the shaft part of the chuck tool 28 sequentially through the first universal joint 24, the connecting shaft 25 and the second universal joint 26, the shaft part of the chuck tool 28 is installed in the second bearing 27, and the tested knob type gear shifter is installed on the gear shifter fixing tool 29, so that the chuck of the chuck tool 28 can be fastened on the knob part of the tested knob type gear shifter.
Referring to fig. 4, the feedback mechanism 8 is composed of a metal ring 81, a thimble 82, a mounting seat 83, a first output line 84 and a second output line 85; the metal ring 81 is sleeved and fixed on the end part, close to the outside of the knob type gear shifter to be tested, of the telescopic shaft of the solenoid type electromagnet, the mounting seat 83 is fixed relative to the knob type gear shifter to be tested, the ejector pin 82 is fixed on the mounting seat 83, one end of the first output line 84 is electrically connected with the metal ring 81, one end of the second output line 85 is electrically connected with the ejector pin 82, and the other ends of the first output line 84 and the second output line 85 are used as the output end of the feedback mechanism 8; the metal ring 81 can be pressed on the thimble 82 when the telescopic shaft of the solenoid electromagnet extends out of the knob type shifter to be tested, and the thimble 82 is provided with a spring mechanism which can buffer the metal ring 81; the industrial personal computer 3 judges the extension state of the telescopic shaft of the solenoid electromagnet by detecting the electrical on-off state between the first output line 84 and the second output line 85.
Referring to fig. 5, the industrial personal computer 3 is electrically connected with the air conditioning system through the air conditioning control unit to control the air conditioning system to adjust the temperature inside the test box 1; the industrial personal computer 3 is electrically connected with a motor of the rotary driving mechanism 2 through a motor control unit so as to control the rotary driving mechanism 2 to drive a knob component of the tested knob type gear shifter to rotate; the industrial personal computer 3 is electrically connected with the output end of the electric signal generated when the output knob part of the tested knob type gear shifter rotates through the CAN adapter card so as to collect the electric signal generated when the knob part of the tested knob type gear shifter rotates in real time; industrial computer 3 passes through IO port module respectively with temperature sensor's output, the solenoid formula electro-magnet control end of quilt knob formula selector, feedback mechanism 8's output, the control end electrical connection of alarm indicator 4 to obtain the inside temperature of experimental box 1 in real time, control solenoid formula electro-magnet break-make electricity, the telescopic shaft of real-time detection solenoid formula electro-magnet stretches out the state, control alarm indicator 4 warns through the luminous mode that high low temperature endurance test device work appears unusually.
Referring to fig. 1 and 2, as a preferred embodiment of the present invention: the invention designs a high-low temperature endurance test device into a movable mode, which comprises the following specific steps:
the test box body 1 is a sealed box body with a shaft through hole 1a and a wiring harness hole 1b in the box wall, a box door which is convenient for placing a tested knob type gear shifter into the test box body 1 is arranged on the front side of the sealed box body, and a sealing strip used for sealing the sealed box body is arranged on the inner side of the box door.
The second universal joint 26, the second bearing 27, the chuck tool 28, the gear shifter fixing tool 29, the temperature sensor and the feedback mechanism 8 are all located inside the test box 1, the servo motor 21, the speed reducer 22, the first bearing 23 and the first universal joint 24 are all located outside the test box 1, the connecting shaft 25 penetrates through the box wall of the test box 1 through the shaft through hole 1a, a connecting wire harness between the industrial personal computer 3 and the temperature sensor and the feedback mechanism 8 penetrates through the box wall of the test box 1 through the wire harness hole 1b, and heat insulation materials are filled in a gap between the shaft through hole 1a and the connecting shaft 25 and a gap between the wire harness hole 1b and the connecting wire harness.
The high and low temperature endurance test device is also provided with a display screen 5 for displaying the working data of the high and low temperature endurance test device and a keyboard 6 for operating the operator control machine 3; the display screen 5 and the keyboard 6 are respectively and electrically connected with the industrial personal computer 3.
The high-low temperature endurance test device is also provided with a case 7 and a main switch 91 for controlling the power supply of the high-low temperature endurance test device; the universal wheel 71 is installed at the bottom of the case 7, the test box body 1 and the first bearing 23 of the rotary driving mechanism 2 are fixed on the top surface of the case 7, the industrial personal computer 3, the display screen 5, the keyboard 6 and the air conditioning system are installed inside the case 7, the industrial personal computer 3, the display screen 5 and the keyboard 6 are exposed on the front surface of the case 7, and the main switch 91, the display screen 92 of the air conditioning system and the power switch 93 are exposed on the back surface of the case 7.
The high-low temperature endurance test device of the invention realizes the following automatic working modes:
referring to fig. 6, the industrial personal computer 3 is provided with at least one set of temperature test conditions, the number of rotation cycles corresponding to each set of temperature test conditions, the rotation angle and rotation speed of the knob member between two adjacent gears of the tested knob type gear shifter, gear pause time, power-off interval time, and maximum gear deviation value, and controls the high and low temperature endurance test device to perform high and low temperature endurance tests according to the following modes, including:
the industrial personal computer 3 adjusts the temperature in the test box body 1 to reach each group of temperature test conditions one by one;
the industrial personal computer 3 executes a rotation test corresponding to the rotation cycle times under each group of temperature test conditions;
industrial computer 3 is when beginning rotation test each time, whether the telescopic shaft that detects the solenoid electro-magnet stretches out to the inside that receives knob formula selector to judge whether to be in P shelves locking state by the knob formula selector: if not, ending the high-low temperature endurance test and judging that the high-low temperature endurance test device works abnormally; if so, the solenoid type electromagnet is controlled to be electrified and is powered off after the power-off interval time, the driving knob component carries out one-time circular rotation according to the rotation angle and the rotation speed, the one-time circular rotation is a process that the knob component starts to rotate forward one by one to the last gear with the first gear position, namely the P gear position, and then rotates reversely one by one until the P gear position is returned to, and the control knob component keeps static for one gear pause time before carrying out the rotation of the next rotation angle when finishing the rotation of each rotation angle (under the condition that the mechanical deviation accumulation of the rotary driving mechanism 2 is small, the knob component can be intermittently rotated, namely stopped when rotating to each gear position of the tested knob type gear shifter), the method comprises the steps that when the pause time of each gear is entered, an electric signal generated when a knob component rotates is collected and recorded as a gear information real-time value of a corresponding gear, wherein the electric signal is used for judging the accuracy of the gear information, the knob component can rotate away from a P gear position within a power-off interval time, so that a telescopic shaft of a solenoid electromagnet can actively extend out of a tested knob type gear shifter at the initial time of a rotation test to relieve the P gear locking state of the tested knob type gear shifter, after the power-off interval time, the knob component already leaves the P gear position, the telescopic shaft of the solenoid electromagnet can passively extend out of the tested knob type gear shifter by a mechanical structure in the tested knob type gear shifter, and therefore when the knob component rotates back to the P gear position at the end time of the rotation test, the telescopic shaft of the solenoid electromagnet can automatically and rapidly extend out of the tested knob type gear shifter; the length of the gear pause time is enough for the telescopic shaft of the solenoid type electromagnet to switch the extending state, so that under the condition that the mechanical deviation accumulation of the rotary driving mechanism 2 is small and the rotation accuracy of the knob component cannot be influenced, namely the knob component can accurately return to the P gear position at the moment of the completion of the rotation test, the telescopic shaft of the solenoid type electromagnet has enough time to extend towards the inside of the tested knob type gear shifter, and the next endurance test can be smoothly carried out. Among them, the gear pause time is preferably 0.5 seconds.
Referring to fig. 7, an industrial personal computer 3 reads a gear information reference value of a tested knob type gear shifter corresponding to a gear P, calculates gear information reference values corresponding to other gears of the tested knob type gear shifter according to the gear information reference values and parameters of the tested knob type gear shifter, judges whether difference absolute values of each gear information real-time value obtained in each rotation test and the gear information reference value of the corresponding gear are smaller than a gear maximum deviation value, judges that the gear information accuracy of the tested knob type gear shifter is qualified in the corresponding rotation test if yes, and judges that the gear information accuracy of the tested knob type gear shifter is unqualified in the corresponding rotation test if not; the gear information reference value is calibrated through a Functional Test (namely, a Functional Circuit Test, referred to as FCT for short) and stored in the tested knob type gear shifter, and the industrial personal computer 3 can obtain the gear information reference value by sending a message to the tested knob type gear shifter; the difference between the reference values of the gear information between two adjacent gears of the tested knob type gear shifter is a fixed value, and the fixed value can be obtained from the parameters of the tested knob type gear shifter (generally, the Hall sensor parameters of the knob type gear shifter); for example: if the shift information reference value of the P shift is P _ Ref and the difference between the shift information reference values of two adjacent shifts is 910, then: gear information reference value R _ Ref = P _ Ref-910 for R gear, gear information reference value N _ Ref = P _ Ref-2 × 910 for N gear, gear information reference value D _ Ref = P _ Ref-3 × 910 for D gear; recording the gear information Real-time values of the P gear, the R gear, the N gear and the D gear as P _ Real, R _ Real, N _ Real and D _ Real respectively, and setting the maximum gear deviation value as 230 (decimal), so that the condition that the gear information accuracy of the tested knob type gear shifter is qualified in a certain rotation test is judged to simultaneously meet the following four condition formulas: p _ Real-P _ Ref | <230, | R _ Real-R _ Ref | <230, | N _ Real-N _ Ref | <230, | D _ Real- | Ref.
The industrial personal computer 3 identifies codes of the air conditioner control unit and the motor control unit in working, and if an error code is identified, the high-low temperature endurance test device is judged to be abnormal in working;
the industrial computer 3 controls the alarm indicator lamp 4 to send out a warning signal when judging that the high-low temperature endurance test device works abnormally, wherein the alarm indicator lamp 4 can flicker green light to set the high-low temperature endurance test device to work normally, and the alarm indicator lamp 4 can flicker red light to set the high-low temperature endurance test device to work abnormally.
The high and low temperature durability test device of the invention is used in the following way:
before a high-low temperature endurance test is carried out, the torque of a knob part of a tested knob type gear shifter is tested; and then, mounting the tested knob type gear shifter into the high and low temperature endurance test device to perform high and low temperature endurance tests, testing the torque of the knob part of the tested knob type gear shifter after the tests are finished, and judging the mechanical endurance performance of the tested knob type gear shifter in the high and low temperature environment by comparing the torques of the tested knob type gear shifter before and after the high and low temperature endurance tests. When the high and low temperature endurance test is carried out, the knob type gear shifter to be tested is firstly confirmed to be rotated to a P gear, and then the test is started.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field. For example, the case 7 may be eliminated, and the test box 1, the rotation driving mechanism 2, the industrial personal computer 3, and the like may be distributed; or, the rotary driving mechanism 2 is put into the test box body 1 after taking protective measures; for another example, a humidity sensor is additionally arranged in the test box body 1 and is electrically connected with the industrial personal computer 3 so as to know the humidity in the test box body 1; for another example, at least one set of rotary drive mechanism 2 and feedback mechanism 8 is added to test a plurality of knob shifters simultaneously.
Claims (10)
1. The utility model provides a high low temperature endurance test device of knob formula selector of utensil gear information monitor function, is applicable to the knob formula selector that receives that has P shelves locking function, P shelves locking function is: when the solenoid electromagnet of the tested knob type gear shifter is powered off and the knob component is in a P gear position, the telescopic shaft of the solenoid electromagnet extends out of the interior of the tested knob type gear shifter to lock the knob component; and the telescopic shaft of the solenoid electromagnet actively extends to the outside of the tested knob type gear shifter when the solenoid electromagnet is electrified, and the telescopic shaft of the solenoid electromagnet passively extends to the outside of the tested knob type gear shifter under the action of a mechanical mechanism inside the tested knob type gear shifter when the knob component rotates away from the P-gear position, and the device is characterized in that:
the high-low temperature endurance test device is provided with a test box body (1), a rotary driving mechanism (2), an industrial personal computer (3), a temperature sensor, an air conditioning system and a feedback mechanism (8); the tested knob type gear shifter is located inside the test box body (1), the industrial personal computer (3) can acquire the temperature inside the test box body (1) in real time through the temperature sensor, can adjust the temperature inside the test box body (1) through the air conditioning system, can drive a knob part of the tested knob type gear shifter to rotate through the rotary driving mechanism (2), can control the on and off of a solenoid type electromagnet of the tested knob type gear shifter, can acquire an electric signal generated by the tested knob type gear shifter when the knob part of the tested knob type gear shifter rotates in real time, and can detect the extension state of a telescopic shaft of the solenoid type electromagnet in real time through the feedback mechanism (8);
industrial computer (3) are provided with at least a set of temperature test condition, each group the rotatory cycle number that the temperature test condition corresponds knob part is in receive rotation angle, gear dwell time and outage interval time between two adjacent gears of knob formula selector to control high low temperature endurance test device according to following mode and carry out high low temperature endurance test, include:
adjusting the temperature inside the test box body (1) to reach each group of temperature test conditions one by one;
executing a rotation test corresponding to the number of rotation cycles under each set of temperature test conditions;
detecting whether a telescopic shaft of the solenoid type electromagnet extends out of the tested knob type gear shifter or not when each rotation test is started: if not, ending the high and low temperature endurance test and judging that the high and low temperature endurance test device works abnormally; if yes, controlling the solenoid type electromagnet to be electrified, powering off after the power-off interval time, driving the knob component to circularly rotate once according to the rotation angle, wherein one-time circular rotation is a process that the knob component starts to rotate forward one by one to the last gear by the first gear position, namely the P gear position, and then reversely rotates one by one to return to the P gear position, and controlling the knob component to keep static for one gear position pause time and then rotate the next rotation angle when finishing rotation of each rotation angle, and collecting an electric signal generated when the knob component rotates when entering each gear position time and recording the electric signal as a gear position information real-time value of a corresponding gear position for judging the accuracy of gear position information, wherein the knob component can rotate away from the P gear position within the power-off interval time; the length of the gear pause time is enough for the telescopic shaft of the solenoid electromagnet to switch the extending state.
2. The high and low temperature durability test apparatus according to claim 1, characterized in that: the feedback mechanism (8) consists of a metal ring (81), a thimble (82), a mounting seat (83), a first output line (84) and a second output line (85); the metal ring (81) is sleeved and fixed at the end part, close to the outside of the tested knob type gear shifter, of the telescopic shaft of the solenoid type electromagnet, the mounting seat (83) is fixed relative to the tested knob type gear shifter, the ejector pin (82) is fixed on the mounting seat (83), one end of the first output line (84) is electrically connected with the metal ring (81), one end of the second output line (85) is electrically connected with the ejector pin (82), and the other ends of the first output line (84) and the second output line (85) are used as the output end of the feedback mechanism (8); the metal ring (81) can be pressed on the thimble (82) when the telescopic shaft of the solenoid type electromagnet extends out of the tested knob type gear shifter, and the thimble (82) is provided with a spring mechanism which can buffer the metal ring (81); the industrial personal computer (3) judges the extension state of the telescopic shaft of the solenoid electromagnet by detecting the electrical on-off state between the first output line (84) and the second output line (85).
3. The high-low temperature durability test apparatus according to claim 1 or 2, characterized in that:
the industrial personal computer (3) is also provided with a gear maximum deviation value;
the industrial computer (3) controls the high and low temperature endurance test device to carry out high and low temperature endurance test, and the method further comprises the following steps:
reading a gear information reference value of the tested knob type gear shifter corresponding to a P gear, calculating gear information reference values corresponding to other gears of the tested knob type gear shifter by combining parameters of the tested knob type gear shifter, judging whether difference absolute values of each gear information real-time value obtained in each rotation test and the gear information reference value of the corresponding gear are smaller than the gear maximum deviation value, if so, judging that the gear information accuracy of the tested knob type gear shifter is qualified in the corresponding rotation test, and if not, judging that the gear information accuracy of the tested knob type gear shifter is unqualified in the corresponding rotation test; and the gear information reference value is calibrated through function test and is stored in the tested knob type gear shifter.
4. The high-low temperature durability test apparatus according to claim 1 or 2, characterized in that: the high-low temperature endurance test device is also provided with an air conditioner control unit, a motor control unit, a CAN adapter card and an I/O port module; the industrial personal computer (3) is electrically connected with the air conditioning system through the air conditioning control unit so as to control the air conditioning system to adjust the temperature inside the test box body (1); the industrial personal computer (3) is electrically connected with a motor of the rotary driving mechanism (2) through the motor control unit so as to control the rotary driving mechanism (2) to drive a knob component of the tested knob type gear shifter to rotate; the industrial personal computer (3) is electrically connected with the output end of the tested knob type gear shifter, which outputs the electric signal generated when the knob component rotates, through the CAN adapter card so as to collect the electric signal generated when the knob component of the tested knob type gear shifter rotates in real time; industrial computer (3) pass through IO port module respectively with temperature sensor's output, survey the solenoid electromagnet control end of knob formula selector, the output electrical connection of feedback mechanism (8) acquires in real time the inside temperature of experimental box (1), control solenoid electromagnet break-make electricity, real-time detection the telescopic shaft of solenoid electromagnet stretches out the state.
5. The high and low temperature durability test apparatus according to claim 4, wherein: the high-low temperature endurance test device is also provided with an alarm indicator lamp (4) for warning the high-low temperature endurance test device that the work is abnormal; the alarm indicator lamp (4) is electrically connected with the industrial personal computer (3);
the industrial computer (3) controls the high and low temperature endurance test device to carry out high and low temperature endurance test, and the method further comprises the following steps:
identifying codes of the air conditioner control unit and the motor control unit in working, and if an error code is identified, judging that the high-low temperature endurance test device works abnormally;
and when the high-low temperature endurance test device is judged to work abnormally, the alarm indicator lamp (4) is controlled to send out a warning signal.
6. The high-low temperature durability test apparatus according to claim 1 or 2, characterized in that: the rotary driving mechanism (2) is composed of a servo motor (21), a speed reducer (22), a first bearing (23), a first universal joint (24), a connecting shaft (25), a second universal joint (26), a second bearing (27), a chuck tool (28) and a shifter fixing tool (29), wherein the chuck tool (28) is formed by connecting a shaft part and a chuck; casing, first bearing (23), second bearing (27) and the fixed frock (29) of selector of casing, reduction gear (22) of servo motor (21) relatively fixed, the motor shaft of servo motor (21) is connected the input shaft of reduction gear (22), the output shaft of reduction gear (22) is installed in first bearing (23) and loop through first universal joint (24), even axle (25) and second universal joint (26) are connected the axial region of chuck frock (28), the axial region of chuck frock (28) is installed in second bearing (27), it installs to be surveyed knob formula selector on selector fixed frock (29), make the chuck of chuck frock (28) can the straining be in be surveyed on knob formula selector's the knob part.
7. The high and low temperature durability test apparatus according to claim 6, characterized in that: the testing box body (1) is a sealed box body, a shaft through hole (1 a) and a wiring harness hole (1 b) are formed in the box wall of the sealed box body, a box door which is convenient for placing the knob type gear shifter to be tested into the testing box body (1) is arranged on the front side of the sealed box body, and a sealing strip used for sealing the sealed box body is arranged on the inner side of the box door;
the second universal joint (26), the second bearing (27), the chuck tool (28), the shifter fixing tool (29), the temperature sensor and the feedback mechanism (8) are located inside the test box body (1), the servo motor (21), the speed reducer (22), the first bearing (23) and the first universal joint (24) are located outside the test box body (1), the connecting shaft (25) penetrates through the box wall of the test box body (1) through the shaft through hole (1 a), a connecting wire harness between the industrial personal computer (3) and the temperature sensor and the feedback mechanism (8) penetrates through the box wall of the test box body (1) through the wire harness hole (1 b), and heat insulation materials are filled in a gap between the shaft through hole (1 a) and the connecting shaft (25) and a gap between the wire harness hole (1 b) and the connecting wire harness.
8. The high-low temperature durability test apparatus according to claim 7, characterized in that: the high-low temperature endurance test device is also provided with a display screen (5) for displaying the working data of the high-low temperature endurance test device and a keyboard (6) for operating the industrial personal computer (3); the display screen (5) and the keyboard (6) are respectively electrically connected with the industrial personal computer (3).
9. The high and low temperature durability test apparatus according to claim 8, characterized in that: the high-low temperature endurance test device is also provided with a case (7) and a main switch (91) for controlling the power supply of the high-low temperature endurance test device; universal wheel (71) are installed to the bottom of machine case (7), first bearing (23) of experimental box (1) and rotary driving mechanism (2) are all fixed the top surface of machine case (7), industrial computer (3), display screen (5), keyboard (6) and air conditioning system all install the inside of machine case (7), industrial computer (3), display screen (5) and keyboard (6) are all in the front of machine case (7) exposes, master switch (91) air conditioning system's display screen (92) and switch (93) are all in the back of machine case (7) exposes.
10. The high-low temperature durability test apparatus according to claim 9, characterized in that: the high-low temperature endurance test device is also provided with a humidity sensor; the humidity sensor is located inside the test box body (1) and electrically connected with the industrial personal computer (3).
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| CN201610952010.4A CN106525417B (en) | 2016-11-01 | 2016-11-01 | High-low temperature endurance test device of knob type gear shifter with gear information monitoring function |
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| CN201610952010.4A CN106525417B (en) | 2016-11-01 | 2016-11-01 | High-low temperature endurance test device of knob type gear shifter with gear information monitoring function |
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| CN106525417B true CN106525417B (en) | 2023-03-21 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108279374A (en) * | 2017-12-05 | 2018-07-13 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of driving switch test fixture |
| CN109114211B (en) * | 2018-08-03 | 2024-06-07 | 广汽零部件有限公司 | Knob type electronic gear shifter with gear display function |
| CN112857829A (en) * | 2021-01-18 | 2021-05-28 | 广汽零部件有限公司 | Environmental durability test system and method of gear shifter actuator and storage medium |
| CN113513588B (en) * | 2021-04-22 | 2022-07-08 | 宁波高发汽车控制***股份有限公司 | Detection method and system of knob gear shifter |
| CN113390622A (en) * | 2021-07-19 | 2021-09-14 | 上汽通用五菱汽车股份有限公司 | Electrodynamic type vehicle air conditioner knob endurance test detection device |
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