CN111487149B - Fatigue test equipment and method for automobile door inner opening handle - Google Patents
Fatigue test equipment and method for automobile door inner opening handle Download PDFInfo
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- CN111487149B CN111487149B CN202010243676.9A CN202010243676A CN111487149B CN 111487149 B CN111487149 B CN 111487149B CN 202010243676 A CN202010243676 A CN 202010243676A CN 111487149 B CN111487149 B CN 111487149B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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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
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
Abstract
The invention relates to an automobile door inside open handle fatigue test device, which comprises: the controller is provided with a temperature control device, a test box with a box cover in detachable connection, and two fatigue test devices symmetrically arranged at two ends of the test box; the fatigue test device includes: the door inner opening handle is provided with a handle and a return spring and is detachably connected with the upper end of the bottom plate of the test box, the load force loading device of a pull rope connected with the tail end of the handle is arranged, and the handle driving device of a handle pusher dog is arranged; the controller is arranged on one side of the test box. The fatigue test equipment for the inner open handle of the automobile door has the advantages of higher test precision, better stability and longer service life of a control system of the fatigue test device.
Description
Technical Field
The invention relates to the field of automobile test equipment, in particular to fatigue test equipment and a fatigue test method for an inner opening handle of an automobile door.
Background
Chinese patent application No.: 201820160235.0's utility model discloses a handle assembly in steam valve, including handle mount pad, handle pivot, the handle that opens in the door, handle locking knob and handle torsional spring, the both ends fixed mounting of handle pivot is on the handle mount pad, and the middle part cover of handle pivot has the axle sleeve, the handle torsional spring cover is on the axle sleeve, and the one end torque arm of handle torsional spring sets up on the handle that opens in the door, and the other end torque arm of handle torsional spring sets up on the handle mount pad, and still is provided with on the handle mount pad and fixes a position this torque arm, with the positioning groove who injects the handle torsional spring at the axial displacement range. An inner door opening handle of an automobile is generally connected with an automobile door lock body through a pull rope or a pull rod and the like, and a user operates in the automobile to open an automobile door; the inner opening handle of the door is frequently used, so the strength and the durability of the inner opening handle of the door are key performance indexes; the strength and durability test of the door internal opening handle is usually carried out in a fatigue test device placed in an environment box, so that a control system (a force sensor, a displacement sensor, a cylinder, a servo motor and the like) of the fatigue test device and the door internal opening handle to be tested are placed in a harsh test environment together, and the defects of low test precision, poor stability and short service life of the control system of the fatigue test device exist; therefore, designing the fatigue test equipment and the test method for the automobile door inside open handle, which have the advantages of higher test precision, better stability and longer service life of a control system of a fatigue test device, becomes an urgent problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects that the existing fatigue test device for the strength and the durability of the door inside-opening handle is usually carried out in an environment box, a control system (a force sensor, a displacement sensor, a cylinder, a servo motor and the like) of the fatigue test device and the door inside-opening handle to be tested are placed in a harsh test environment together, the test precision is lower, the stability is poorer, and the service life of the control system of the fatigue test device is shorter, and provides the fatigue test equipment and the test method for the door inside-opening handle of the automobile, which have higher test precision, better stability and longer service life of the control system of the fatigue test device.
The specific technical scheme of the invention is as follows:
an automobile in-door handle fatigue test equipment includes: the controller is provided with a temperature control device, a test box with a box cover in detachable connection, and two fatigue test devices symmetrically arranged at two ends of the test box; the fatigue test device includes: the door inner opening handle is provided with a handle and a return spring and is detachably connected with the upper end of the bottom plate of the test box, the load force loading device of a pull rope connected with the tail end of the handle is arranged, and the handle driving device of a handle pusher dog is arranged; the controller is arranged on one side of the test box.
According to the fatigue test equipment for the inner opening handle of the automobile door, the inner opening handle is detachably connected with the upper end of the bottom plate of the test box, the controller is arranged on one side of the test box, the load force loading device simulates load force, the handle driving device provided with the handle pusher dog pulls the handle open and enables the handle to reset, the test precision is high, the stability is good, and the service life of a control system of the fatigue test device is long.
Preferably, the load force loading device includes: the device comprises a fixed plate, a plurality of fixed columns, a load force adjusting assembly, a pull rod, a load force loading tension sensor and a steering wheel, wherein the fixed plate is arranged on the outer side of an end plate arranged in a test box; the load force loading tension sensor is electrically connected with the controller.
Preferably, the load force adjusting assembly includes: the output end of the manual throttling speed regulating valve is communicated with a rod cavity of the loading force loading air cylinder, the output end of the manual throttling speed regulating valve is communicated with the input end of the manual throttling speed regulating valve, and the loading force loads the two-position three-way electromagnetic valve; two outlets of the load force loading two-position three-way electromagnetic valve are communicated with an inlet end of the load force loading manual pressure regulating valve and a rodless cavity of the load force loading air cylinder in a one-to-one correspondence manner; the manual throttling speed regulating valve, the load force loading manual pressure regulating valve and the load force loading two-position three-way electromagnetic valve are respectively connected with the outer end of the fixed plate; the load force loading two-position three-way electromagnetic valve is electrically connected with the controller.
The load force loading device tensions a stay cable by using a load force loading air cylinder of the load force adjusting assembly, controls the load force to load a two-position three-way electromagnetic valve through a controller, enables the load force loaded on the tail end of the handle by the load force loading air cylinder to be stably loaded according to requirements by adjusting a manual throttling speed regulating valve and a load force loading manual pressure regulating valve, and transmits signals to the controller through a load force loading tension sensor, so that the test precision and stability are improved; the load force loading cylinder, the manual throttling speed regulating valve, the load force loading manual pressure regulating valve and the load force loading two-position three-way electromagnetic valve are respectively connected with the outer end of the fixing plate, and the service life is long.
Preferably, the handle driving means includes: the device comprises a mounting plate, a plurality of connecting columns, a servo electric cylinder, a pusher dog control cylinder, a plurality of guide posts, a push-pull plate, a push-pull rod, a driving tension sensor, a connecting lug, a pusher dog control panel, a driving rod, a control cable, a coupler, a pusher dog control manual pressure regulating valve, a pusher dog control three-way electromagnetic valve and a pusher dog control three-way electromagnetic valve, wherein the mounting plate is arranged on the outer side of an end plate arranged in a test box; two outlets of the pusher dog control two-position three-way electromagnetic valve are correspondingly communicated with an inlet end of the pusher dog control manual pressure regulating valve and a rodless cavity of the pusher dog control air cylinder one by one; the handle pusher dog includes: a claw body with an inner end provided with a claw hook and an outer end hinged with the connecting lug, and a control rod with an upper end connected with the outer end of the claw body; the outer end of the control cable is connected with the control rod; the pusher dog control manual pressure regulating valve and the pusher dog control two-position three-way electromagnetic valve are respectively connected with the outer end of the mounting plate; the driving tension sensor, the servo electric cylinder and the pusher dog control two-position three-way electromagnetic valve are respectively electrically connected with the controller.
Handle drive arrangement pulls open the handle and make the handle slowly reset through servo electric jar drive, carries out circulation fatigue test: the servo electric cylinder drives the pull-open handle, a piston rod of the pusher dog control cylinder pushes the pusher dog control plate to move inwards through the coupler and the driving rod, the control cable pulls the control rod to enable the handle pusher dog to rotate, the claw hook is separated from the handle, and the handle naturally resets under the action of the reset spring to perform a rebound fatigue test; the servo electric cylinder and the two-position three-way electromagnetic valve are controlled by the controller, and the tension sensor is driven to transmit signals to the controller, so that the test precision and stability are improved; the diversification of test items is realized; the servo electric cylinder, the pusher dog control manual pressure regulating valve and the pusher dog control two-position three-way electromagnetic valve are respectively connected with the outer end of the fixed plate, and the service life is longer.
Preferably, the temperature control device includes: the refrigerator is arranged on one side of the test box, the heater is arranged in the test box, the cooling pipe is communicated with the refrigerator, and the temperature controller is arranged on the box cover; the refrigerator and the heater are respectively electrically connected with the controller.
The temperature in the test box is adjusted through the temperature control device, and the requirements of the cycle fatigue test and the rebound fatigue test on different environmental temperatures can be met.
A test method of an automobile door inside handle fatigue test device is characterized in that the automobile door inside handle fatigue test device is the automobile door inside handle fatigue test device, wherein (1) an inside handle is fixed at the upper end of a bottom plate through a screw, a claw hook hooks the handle, and a box cover is connected with a test box through a screw; (2) Compressed air enters a rodless cavity of a load force loading cylinder through a load force loading two-position three-way electromagnetic valve, a load force loading manual pressure regulating valve and a throttling speed regulating valve, and a piston rod of the load force loading cylinder tensions a pull cable through a load force loading tension sensor and a pull rod; (3) Adjusting a manual throttling speed regulating valve and a load force loading manual pressure regulating valve to enable the load force loaded on the tail end of the handle by the load force loading cylinder to be 63N, and transmitting a signal to the controller through the load force loading tension sensor; (4) The controller controls the servo electric cylinder to start, a push rod of the servo electric cylinder pulls the handle outwards through the driving tension sensor, the push-pull rod, the connecting lug and the handle pusher dog, the handle continues to apply force for 5 seconds after being pulled completely, and the driving tension sensor transmits a signal to the controller, the push rod of the servo electric cylinder moves inwards, so that the driving tension sensor, the push-pull rod, the connecting lug and the handle pusher dog move inwards, the handle is reset slowly, the handle and the handle are pulled repeatedly and reset slowly, and a cyclic fatigue test is carried out: (5) The controller controls the servo electric cylinder to start, a push rod of the servo electric cylinder drives a tension sensor, a push-pull rod, a connecting lug and a handle pusher dog to pull a handle outwards, after the handle is completely opened, a pulling force of 80N is continuously applied for 5 seconds, signals are transmitted to the controller through the drive tension sensor, compressed air controls a two-position three-way electromagnetic valve through the pusher dog, a pusher dog control manual pressure regulating valve enters a rodless cavity of the pusher dog control cylinder, a piston rod of the pusher dog control cylinder pushes a pusher dog control plate to move inwards through a coupler and a drive rod, a control cable pulls the control rod to enable the handle pusher dog to rotate, a claw hook is separated from the handle, the handle naturally resets under the action of a reset spring, the push rod of the servo electric cylinder moves inwards to enable the drive tension sensor, the push-pull rod, the connecting lug and the handle pusher dog to reset inwards, the piston rod of the pusher dog control cylinder pushes the pusher dog control plate to reset outwards through the coupler and the drive rod, the handle pusher dog control plate reversely rotates and resets, and the handle hook hooks the handle; repeatedly pulling the handle and the handle to naturally reset under the action of the reset spring, and performing a rebound fatigue test; (6) The temperature in the test box is adjusted by the temperature control device, the temperature range is adjusted to be-70 ℃ to 150 ℃, and the requirements of the cycle fatigue test and the rebound fatigue test on different environmental temperatures are met.
The test method of the fatigue test equipment for the automobile in-door handle can meet the requirements of high precision, good stability and long service life of a control system of the fatigue test device for the automobile in-door handle fatigue test.
Compared with the prior art, the invention has the beneficial effects that: according to the fatigue test equipment for the internally-opened handle of the automobile door, the internally-opened handle is detachably connected with the upper end of the bottom plate of the test box, the controller is arranged on one side of the test box, the load force loading device simulates load force, the handle driving device provided with the handle pusher dog pulls the handle open and enables the handle to reset, the test precision is high, the stability is good, and the service life of a control system of the fatigue test device is long. The load force loading device tensions a stay cable by using a load force loading cylinder of the load force adjusting assembly, controls the load force to load a two-position three-way electromagnetic valve through a controller, enables the load force loaded by the load force loading cylinder on the tail end of the handle to be stably loaded according to needs by adjusting a manual throttling speed regulating valve and a load force loading manual pressure regulating valve, and transmits a signal to the controller through a load force loading tension sensor, so that the test precision and stability are improved; the load force loading cylinder, the manual throttling speed regulating valve, the load force loading manual pressure regulating valve and the load force loading two-position three-way electromagnetic valve are respectively connected with the outer end of the fixing plate, and the service life is long. Handle drive arrangement pulls open the handle and make the handle slowly reset through servo electric jar drive, carries out circulation fatigue test: the servo electric cylinder drives the pull-open handle, a piston rod of the pusher dog control cylinder pushes the pusher dog control plate to move inwards through the coupler and the driving rod, the control cable pulls the control rod to enable the handle pusher dog to rotate, the claw hook is separated from the handle, and the handle naturally resets under the action of the reset spring to perform a rebound fatigue test; the servo electric cylinder and the two-position three-way electromagnetic valve are controlled by the controller, and the tension sensor is driven to transmit signals to the controller, so that the test precision and stability are improved; the diversification of test items is realized; the servo electric cylinder, the pusher dog control manual pressure regulating valve and the pusher dog control two-position three-way electromagnetic valve are respectively connected with the outer end of the fixed plate, and the service life is long. The temperature in the test box is adjusted through the temperature control device, and the requirements of a cycle fatigue test and a rebound fatigue test on different environmental temperatures can be met. The test method of the fatigue test equipment for the automobile in-door handle can meet the requirements of high precision, good stability and long service life of a control system of the fatigue test device for the automobile in-door handle fatigue test.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a top view of fig. 1.
In the figure: the device comprises a controller 1, a box cover 2, a test box 3, a handle 4, a reset spring 5, an indoor opening handle 6, a guy cable 7, an end plate 8, a fixing plate 9, a fixing column 10, a load force loading cylinder 11, a pull rod 12, a load force loading tension sensor 13, a bottom plate 14, a steering wheel 15, a manual throttling speed regulating valve 16, a load force loading manual pressure regulating valve 17, a load force loading two-position three-way electromagnetic valve 18, a mounting plate 19, a connecting column 20, a servo electric cylinder 21, a pusher control cylinder 22, a guide column 23, a guide hole 24, a push-pull plate 25, a push-pull rod 26, a driving tension sensor 27, a connecting lug 28, a pusher control plate 29, a driving rod 30, a control cable 31, a coupler 32, a pusher control manual pressure regulating valve 33, a pusher control two-position three-way electromagnetic valve 34, a claw hook 35, a claw body 36, a control rod 37, a refrigerator 38, a heater 39, a cooling pipe 40 and a temperature controller 41.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in the attached figures 1 and 2: an automobile in-door handle fatigue test equipment includes: the device comprises a controller 1, a test box 3 and two fatigue test devices, wherein the test box 3 is provided with a temperature control device and a box cover 2 connected by screws; the fatigue test device includes: the door inner opening handle 6 is provided with a handle 4 and a return spring 5 and is in screw connection with the upper end of the bottom plate of the test box 3, the load force loading device of a pull rope 7 connected with the tail end of the handle 4 is arranged, and the handle driving device of a handle pusher dog is arranged; the controller 1 is arranged on one side of the test box 3; the return spring 5 is a torsion spring; the stay 7 is a steel wire.
The loading force loading device comprises: the test box comprises a fixed plate 9 arranged on the outer side of an end plate 8 arranged on the test box 3, four fixed columns 10 of which two ends are connected with the mounting plate and the end plate 8 in a one-to-one correspondence manner, a load force adjusting assembly provided with a load force loading cylinder 11 connected with the outer end of the fixed plate 9, a pull rod 12 arranged in the end plate 8 in a penetrating manner and of which the inner end is connected with the other end of a pull rope 7, load force loading tension sensors 13 arranged between the end plate 8 and the mounting plate and of which two ends are connected with a piston rod of the load force loading cylinder 11 and the outer end of the pull rod 12 in a one-to-one correspondence manner, and a steering wheel 15 of which the side wall blocks the pull rope 7 and is pivoted with a bottom plate 14 arranged on the test box 3 through a bearing; the load force loading tension sensor 13 is electrically connected with the controller 1.
The load force adjusting assembly includes: a manual throttling speed regulating valve 16 with an outlet end communicated with a rod cavity of the loading force loading cylinder 11, a loading force loading manual pressure regulating valve 17 with an outlet end communicated with an inlet end of the manual throttling speed regulating valve 16, and a loading force loading two-position three-way electromagnetic valve 18; two outlets of the load force loading two-position three-way electromagnetic valve 18 are communicated with an inlet end of a load force loading manual pressure regulating valve 17 and a rodless cavity of the load force loading air cylinder 11 in a one-to-one correspondence manner; a manual throttle speed regulating valve 16, a load force loading manual pressure regulating valve 17 and a load force loading two-position three-way electromagnetic valve 18 are respectively connected with the outer end of the fixing plate 9; the load force loading two-position three-way electromagnetic valve 18 is electrically connected with the controller 1.
The handle driving device comprises: a mounting plate 19 arranged outside an end plate 8 arranged on the test box 3, four connecting columns 20 with two ends correspondingly connected with the mounting plate 19 and the end plate 8 one by one, a servo electric cylinder 21 connected with the outer end of the mounting plate 19, a pusher control cylinder 22, four guide posts 23 with outer ends respectively connected with the inner end of the end plate 8, a push-pull plate 25 provided with four guide holes 24 correspondingly sleeved outside the guide posts 23 one by one, a push-pull rod 26 penetrating in the end plate 8 and with the inner end connected with the push-pull plate 25, a driving tension sensor 27 arranged between the end plate 8 and the mounting plate 19 and with two ends correspondingly connected with the push rod of the servo electric cylinder 21 and the outer end of the push-pull rod 26 one by one, a connecting lug 28 arranged at the inner end of the push-pull plate 25, a pusher control plate 29 arranged at the front side of the connecting lug 28, a driving rod 30 penetrating in the end of the end plate 8 and the push-pull plate 25 and with the inner end connected with the pusher control plate 29, a control cable 31 with the pusher control plate 29, a coupling 32 arranged between the end of the end plate 8 and the mounting plate 19 and with two ends correspondingly connected with the piston rod of the pusher control cylinder 22 and the outer end of the pusher control cylinder 30, and a pusher control solenoid valve 34 for controlling the pusher control; two outlets of the pusher dog control two-position three-way electromagnetic valve 34 are communicated with an inlet end of the pusher dog control manual pressure regulating valve 33 and a rodless cavity of the pusher dog control cylinder 22 in a one-to-one correspondence manner; the handle pusher dog includes: a claw body 36 with an inner end provided with a claw hook 35 and an outer end hinged with the connecting lug 28 through a hinged shaft, and a control rod 37 with an upper end connected with the outer end of the claw body 36; the outer end of the control cable 31 is connected with the lower part of the control rod 37; the pusher dog control manual pressure regulating valve 33 and the pusher dog control two-position three-way electromagnetic valve 34 are respectively connected with the outer end of the mounting plate 19; the driving tension sensor 27, the servo electric cylinder 21 and the pusher dog control two-position three-way electromagnetic valve 34 are respectively electrically connected with the controller 1; the control wire 31 is a steel wire.
The temperature control device comprises: the refrigerator comprises a refrigerator 38 arranged on one side of a test box 3, a heater 39 arranged in the test box 3, a cooling pipe 40 communicated with the refrigerator 38, and a temperature controller 41 arranged on a box cover 2; the refrigerator 38 and the heater 39 are respectively electrically connected with the controller 1; the heater 39 is an electric heater.
A test method of an automobile door inside open handle fatigue test device is characterized in that the automobile door inside open handle fatigue test device is the automobile door inside open handle fatigue test device, 1, an inside open handle 6 is fixed at the upper end of a bottom plate 14 through a screw, a claw hook 35 hooks a handle 4, and a box cover 2 is connected with a test box 3 through a screw; (2) Compressed air enters a rodless cavity of the load force loading cylinder 11 through a load force loading two-position three-way electromagnetic valve 18, a load force loading manual pressure regulating valve 17 and a throttling speed regulating valve, and a piston rod of the load force loading cylinder 11 tensions a pull cable 7 through a load force loading tension sensor 13 and a pull rod 12; (3) Adjusting a manual throttling speed regulating valve 16 and a load force loading manual pressure regulating valve 17 to enable the load force loaded on the tail end of the handle 4 by the load force loading cylinder 11 to be 63N, and transmitting a signal to the controller 1 through a load force loading tension sensor 13; (4) Controller 1 control servo electric cylinder 21 starts, the push rod of servo electric cylinder 21 is through drive force sensor 27, push-and-pull rod 26, engaging lug 28, the handle pusher dog outwards pulls open handle 4, handle 4 continues application of force for 5 seconds after pulling open completely, and through drive force sensor 27 with signal transmission to controller 1, the push rod inward movement of servo electric cylinder 21, make drive force sensor 27, push-and-pull rod 26, engaging lug 28, the handle pusher dog inward movement, handle 4 slowly resets, the repetition pulls open handle 4 and handle 4 slowly resets, carry out circulation fatigue test: (5) The controller 1 controls the servo electric cylinder 21 to start, a push rod of the servo electric cylinder 21 pulls the handle 4 outwards through the driving tension sensor 27, the push-pull rod 26, the connecting lug 28 and the handle pusher dog, the handle 4 is completely opened and then continues to apply a pulling force of 80N for 5 seconds, a signal is transmitted to the controller 1 through the driving tension sensor 27, compressed air enters a rodless cavity of the pusher dog control cylinder 22 through the pusher dog control two-position three-way electromagnetic valve 34 and the pusher dog control manual pressure regulating valve 33, a piston rod of the pusher dog control cylinder 22 pushes the pusher dog control plate 29 to move inwards through the coupler 32 and the driving rod 30, the control cable 31 pulls the control rod 37 to rotate the handle pusher dog, the claw hook 35 is separated from the handle 4, the handle 4 naturally resets under the action of the reset spring 5, the push rod of the servo electric cylinder 21 moves inwards to enable the driving tension sensor 27, the push-pull rod 26, the connecting lug 28 and the handle pusher dog to move inwards to reset, the piston rod of the pusher dog control cylinder 22 pushes the pusher dog control plate 29 to move outwards through the coupler 32 and the handle pusher dog 30, the handle pusher dog reversely rotates, and the handle 35 hooks the handle 4; repeatedly pulling the handle 4 and the handle 4 to naturally reset under the action of the reset spring 5, and performing a rebound fatigue test; (6) The temperature in the test box 3 is adjusted by the temperature control device, the temperature range is adjusted to be-70 ℃ to 150 ℃, and the requirements of the cycle fatigue test and the rebound fatigue test on different environmental temperatures are met.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (2)
1. A test method of an automobile door inside open handle fatigue test device is characterized in that the automobile door inside open handle fatigue test device comprises: the controller is provided with a temperature control device, a test box with a box cover in detachable connection, and two fatigue test devices symmetrically arranged at two ends of the test box; the fatigue test device includes: the door inner opening handle is provided with a handle and a return spring and is detachably connected with the upper end of the bottom plate of the test box, the load force loading device of a guy cable connected with the tail end of the handle is arranged, and the handle driving device of a handle pusher dog is arranged; the load force loading device includes: the device comprises a fixed plate, a plurality of fixed columns, a loading force adjusting assembly, a pull rod, a loading force loading tension sensor and a steering wheel, wherein the fixed plate is arranged on the outer side of an end plate arranged in a test box; the load force loading tension sensor is electrically connected with the controller; the load force adjustment assembly includes: the outlet end of the manual throttling speed regulating valve is communicated with a rod cavity of the loading force loading air cylinder, the outlet end of the manual throttling speed regulating valve is communicated with the inlet end of the manual throttling speed regulating valve, and the loading force is loaded on the two-position three-way electromagnetic valve; two outlets of the load force loading two-position three-way electromagnetic valve are communicated with an inlet end of the load force loading manual pressure regulating valve and a rodless cavity of the load force loading cylinder in a one-to-one correspondence manner; the manual throttling speed regulating valve, the load force loading manual pressure regulating valve and the load force loading two-position three-way electromagnetic valve are respectively connected with the outer end of the fixed plate; the loading force loading two-position three-way electromagnetic valve is electrically connected with the controller; the handle driving device includes: the device comprises a mounting plate, a plurality of connecting columns, a servo electric cylinder, a pusher dog control cylinder, a plurality of guide posts, a push-pull plate, a push-pull rod, a driving tension sensor, a connecting lug, a pusher dog control panel, a driving rod, a control cable, a coupler, a pusher dog control manual pressure regulating valve, a pusher dog control three-way electromagnetic valve and a pusher dog control three-way electromagnetic valve, wherein the mounting plate is arranged on the outer side of an end plate arranged in a test box; two outlets of the pusher dog control two-position three-way electromagnetic valve are correspondingly communicated with an inlet end of the pusher dog control manual pressure regulating valve and a rodless cavity of the pusher dog control air cylinder one by one; the handle pusher dog includes: a claw body with an inner end provided with a claw hook and an outer end hinged with the connecting lug, and a control rod with an upper end connected with the outer end of the claw body; the outer end of the control cable is connected with the control rod; the pusher dog control manual pressure regulating valve and the pusher dog control two-position three-way electromagnetic valve are respectively connected with the outer end of the mounting plate; the driving tension sensor, the servo electric cylinder and the pusher dog control two-position three-way electromagnetic valve are respectively electrically connected with the controller; the testing method of the fatigue testing equipment for the inner opening handle of the automobile door comprises the following steps that (1) the inner opening handle of the automobile door is fixed at the upper end of a bottom plate through a screw, a claw hook hooks the handle, and a box cover is connected with a testing box through a screw; (2) Compressed air enters a rodless cavity of a load force loading cylinder through a load force loading two-position three-way electromagnetic valve, a load force loading manual pressure regulating valve and a throttling speed regulating valve, and a piston rod of the load force loading cylinder tensions a pull rope through a load force loading tension sensor and a pull rod; (3) Adjusting a manual throttling speed regulating valve and a load force loading manual pressure regulating valve to enable the load force loaded on the tail end of the handle by the load force loading cylinder to be 63N, and transmitting a signal to a controller through a load force loading tension sensor; (4) The controller controls the servo electric cylinder to start, a push rod of the servo electric cylinder drives a pull sensor, a push-pull rod, a connecting lug and a handle pusher dog to pull a handle outwards, the handle continues to apply force for 5 seconds after being pulled completely, and signals are transmitted to the controller through the drive pull sensor, the push rod of the servo electric cylinder moves inwards to drive the pull sensor, the push-pull rod, the connecting lug and the handle pusher dog to move inwards, the handle is reset slowly, the handle and the handle are pulled repeatedly and reset slowly, and a cyclic fatigue test is carried out; repeatedly pulling the handle and the handle to naturally reset under the action of the reset spring, and performing a rebound fatigue test; (6) The temperature in the test box is adjusted by the temperature control device, the temperature range is adjusted to be-70 ℃ to 150 ℃, and the requirements of the cycle fatigue test and the rebound fatigue test on different environmental temperatures are met.
2. The method for testing the fatigue test equipment of the inner open handle of the automobile door as claimed in claim 1, wherein the temperature control device comprises: the refrigerator, the heater arranged in the test box, the cooling pipe communicated with the refrigerator and the temperature controller arranged on the box cover; the refrigerator and the heater are respectively electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243676.9A CN111487149B (en) | 2020-03-31 | 2020-03-31 | Fatigue test equipment and method for automobile door inner opening handle |
Applications Claiming Priority (1)
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| KR960042041A (en) * | 1995-05-15 | 1996-12-19 | 김태구 | Durability Tester of Automotive Door Lock Device |
| CN202141584U (en) * | 2011-05-06 | 2012-02-08 | 浙江师范大学 | Automobile door handle part endurance test testing stand |
| CN202928786U (en) * | 2012-11-07 | 2013-05-08 | 嘉兴敏惠汽车零部件有限公司 | Synchronous fatigue testing device for automobile door handles |
| CN205192733U (en) * | 2015-10-20 | 2016-04-27 | 宁波神通模塑有限公司 | Durable experimental facilities of doorknob in automobile -used |
| CN109540481A (en) * | 2017-09-21 | 2019-03-29 | 上汽通用五菱汽车股份有限公司 | A kind of arrangements for automotive doors handle endurance test tool |
| CN110595793A (en) * | 2019-08-09 | 2019-12-20 | 江苏大学 | Automobile door opening and closing fatigue test device and test method thereof |
| CN210198694U (en) * | 2019-07-19 | 2020-03-27 | 余姚市瑞德汽配有限公司 | Automobile door handle spring durability testing arrangement |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960042041A (en) * | 1995-05-15 | 1996-12-19 | 김태구 | Durability Tester of Automotive Door Lock Device |
| CN202141584U (en) * | 2011-05-06 | 2012-02-08 | 浙江师范大学 | Automobile door handle part endurance test testing stand |
| CN202928786U (en) * | 2012-11-07 | 2013-05-08 | 嘉兴敏惠汽车零部件有限公司 | Synchronous fatigue testing device for automobile door handles |
| CN205192733U (en) * | 2015-10-20 | 2016-04-27 | 宁波神通模塑有限公司 | Durable experimental facilities of doorknob in automobile -used |
| CN109540481A (en) * | 2017-09-21 | 2019-03-29 | 上汽通用五菱汽车股份有限公司 | A kind of arrangements for automotive doors handle endurance test tool |
| CN210198694U (en) * | 2019-07-19 | 2020-03-27 | 余姚市瑞德汽配有限公司 | Automobile door handle spring durability testing arrangement |
| CN110595793A (en) * | 2019-08-09 | 2019-12-20 | 江苏大学 | Automobile door opening and closing fatigue test device and test method thereof |
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| CN111487149A (en) | 2020-08-04 |
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