CN109991014B - Automobile combined switch endurance test bench - Google Patents

Automobile combined switch endurance test bench Download PDF

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Publication number
CN109991014B
CN109991014B CN201711473098.2A CN201711473098A CN109991014B CN 109991014 B CN109991014 B CN 109991014B CN 201711473098 A CN201711473098 A CN 201711473098A CN 109991014 B CN109991014 B CN 109991014B
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China
Prior art keywords
fixedly connected
frame platform
clock spring
detachably
driving device
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CN201711473098.2A
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Chinese (zh)
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CN109991014A (en
Inventor
陈勇强
李尚林
龚辉
卢厚柱
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SAIC GM Wuling Automobile Co Ltd
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SAIC GM Wuling Automobile Co Ltd
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Priority to CN201711473098.2A priority Critical patent/CN109991014B/en
Publication of CN109991014A publication Critical patent/CN109991014A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses an automobile combined switch endurance test stand which comprises a frame platform, a combined switch, a clock spring, a first driving device and two groups of second driving devices, wherein the combined switch is detachably and fixedly connected to the clock spring, the clock spring is detachably and fixedly connected to the middle part of the frame platform, the first driving device is detachably and fixedly connected to the top of the frame platform, the clock spring is positively and negatively connected to the middle part of the frame platform through the first driving device, the two groups of second driving devices are detachably and fixedly connected to the front part and the rear part of one side of the frame platform respectively, the combined switch is positively and reversely connected through the two groups of second driving devices, and the combined switch, the clock spring, the first driving device and the two groups of second driving devices are all connected with a PLC programmable control system. The automobile combined switch endurance test bed provided by the invention has the advantages that the combined switch operation force is adjustable, the clock spring can realize bidirectional rotation, and the PLC programmable control system is used for controlling, so that the manual operation test is replaced.

Description

Automobile combined switch endurance test bench
Technical Field
The invention relates to mechanical tests, in particular to an automobile combined switch endurance test stand.
Background
At present, in the field of combined switch endurance test, a laboratory does not have a related test bench and equipment, and the endurance test is carried out only by manpower. One test item has twelve thousands times, has high test strength and heavy test personnel load. Meanwhile, according to safety regulations, testers cannot perform high-low temperature endurance tests because the testers cannot be in a high-low temperature environment for a long time.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the invention aims to provide an automobile combined switch endurance test stand which has the advantages that the operation force of a combined switch is adjustable, a clock spring can realize bidirectional rotation, and a PLC programmable control system can control, so that manual operation test is replaced.
The invention discloses an automobile combined switch endurance test stand which comprises a frame platform, a combined switch, a clock spring, a first driving device and two groups of second driving devices, wherein the combined switch is detachably and fixedly connected to the clock spring, the clock spring is detachably and fixedly connected to the middle part of the frame platform, the first driving device is detachably and fixedly connected to the top of the frame platform, the clock spring is positively and negatively connected to the middle part of the frame platform through the first driving device, the two groups of second driving devices are detachably and fixedly connected to the front part and the rear part of one side of the frame platform respectively, the combined switch is positively and reversely connected through the two groups of second driving devices, and the combined switch, the clock spring, the first driving device and the two groups of second driving devices are all connected with a Programmable Logic Controller (PLC).
The endurance test stand of the automobile combined switch can be:
the clock spring and the first driving device are provided with a circular shaft assembly therebetween, two ends of the circular shaft assembly are respectively and detachably fixedly connected to the first driving device and the clock spring, and the clock spring and the circular shaft assembly rotate forward and backward through the first driving device.
The circular shaft assembly comprises a first circular shaft, an energy absorbing piece and a third circular shaft, wherein two ends of the energy absorbing piece are respectively connected to the lower part of the first circular shaft and the upper part of the third circular shaft in an expanding type friction manner, the upper part of the first circular shaft is detachably and fixedly connected to the bottom of the first driving device, and the lower part of the third circular shaft is detachably and fixedly connected to the clock spring.
The energy absorbing piece is made of elastic or high-low resistant resin materials, and the first round shaft and the third round shaft are made of aluminum alloy materials.
The first driving device is a forward and reverse rotation motor, a shell of the forward and reverse rotation motor is detachably and fixedly connected to the top of the frame platform, and a rotating shaft of the forward and reverse rotation motor is detachably and fixedly connected to the top of the circular shaft assembly.
The two groups of second driving devices are respectively a first air cylinder and a second air cylinder, the first air cylinder is opposite to the second air cylinder, a first cylinder body of the first air cylinder is fixedly connected to the front side of the frame platform, a second cylinder body of the second air cylinder is fixedly connected to the rear side of the frame platform, a first piston rod of the first air cylinder is opposite to a second piston rod of the second air cylinder, and the combination switch is opposite to the first piston rod and the second piston rod in a releasable manner.
And the first cylinder and the second cylinder are respectively provided with a regulating valve and a throttle valve.
The frame platform top fixedly connected with fixed plate, first drive arrangement detachable fixed connection in on the fixed plate.
And a load lamp is arranged on the frame platform and is electrically connected with the combination switch.
And the bottom of the frame platform is fixedly connected with a universal wheel.
The invention discloses an automobile combined switch endurance test stand which comprises a frame platform, a combined switch, a clock spring, a first driving device and two groups of second driving devices, wherein the combined switch is detachably and fixedly connected to the clock spring, the clock spring is detachably and fixedly connected to the middle part of the frame platform, the first driving device is detachably and fixedly connected to the top of the frame platform, the clock spring is positively and negatively connected to the middle part of the frame platform through the first driving device, the two groups of second driving devices are detachably and fixedly connected to the front part and the rear part of one side of the frame platform respectively, the combined switch is positively and reversely connected through the two groups of second driving devices, and the combined switch, the clock spring, the first driving device and the two groups of second driving devices are all connected with a Programmable Logic Controller (PLC). Thus, the frame platform plays a role in supporting the whole test stand; the first driving device can realize forward and reverse rotation, the rotating speed of the first driving device can be adjusted according to the rotating speed range of the clock spring, the first driving device can adapt to high and low temperature environments, and the first driving device can be used for bidirectional rotation, so that the test requirement is met; the first driving device drives the clock spring to rotate forward and backward; the second driving device can play a role in driving the combined switch, and when one second driving device drives outwards, the combined switch is pushed to move, so that the combined switch is opened; when the second driving device stretches inwards, the combined switch is restored to the original state, and the combined switch is closed. Meanwhile, when the other second driving device drives outwards, the combined switch is pushed to move, so that the combined switch is opened; when the second driving device stretches inwards, the combined switch is restored to the original state, and the combined switch is closed. The second driving device can realize the automatic return of the opening and closing of the combined switch in two directions, and one cycle is completed. The required number of tests were completed by rotation, thereby completing the endurance test. The combination switch and the clock spring are detachably and fixedly connected, so that the combination switch and the clock spring are easy to detach and mount, and the efficiency of a durability test is improved. The clock spring is detachably and fixedly connected to the middle part of the frame platform, so that the clock spring is convenient to detach and install; the first drive arrangement fixed connection is in frame platform top, and frame platform provides holding power and mounting point for first drive arrangement. The whole test bench is connected into a PLC control program, and automation of the whole test action, including automatic operation, process control, automatic counting, automatic circulation, fault alarm and the like, is realized by utilizing the PLC program. The labor intensity can be reduced and the test efficiency can be improved by the control of the PLC programmable control system. The frame platform has the advantages of simple structure, convenient maintenance and low cost. The test bench can be used for testing in severe test environments such as high temperature, low temperature and the like. Compared with the prior art, the automobile combined switch endurance test stand has the advantages that: the combined switch has adjustable operating force, the clock spring can realize bidirectional rotation, and the PLC programmable control system can be used for controlling, so that manual operation test is replaced.
Drawings
FIG. 1 is a schematic diagram of a endurance test stand for an automotive combination switch according to the present invention.
FIG. 2 is a schematic view of a portion of a durability test stand for an automotive combination switch according to the present invention.
FIG. 3 is another partial schematic view of an automotive combination switch endurance test stand of the present invention.
Description of the drawings
1. A frame platform; 11. a fixing plate; 2. a combination switch; 3. a clock spring; 4. a circular shaft assembly; 41. a first circular shaft; 42. an energy absorbing member; 43. a third circular shaft; 5. a forward and reverse rotation motor; 6. a first cylinder; 7. a second cylinder; 8. a load lamp; 9. and a universal wheel.
Detailed Description
The durability test stand for the automobile combination switch according to the present invention will be described in further detail with reference to fig. 1 to 3 of the accompanying drawings.
The invention relates to an automobile combined switch endurance test stand, referring to figures 1-3, comprising a frame platform 1, a combined switch 2, a clock spring 3, a first driving device and two groups of second driving devices, wherein the combined switch 2 is detachably and fixedly connected to the clock spring 3, the clock spring 3 is detachably and fixedly connected to the middle part of the frame platform 1, the first driving device is detachably and fixedly connected to the top of the frame platform 1, the clock spring 3 is positively and negatively connected to the middle part of the frame platform 1 through the first driving device, the two groups of second driving devices are respectively detachably and fixedly connected to the front part and the rear part of one side of the frame platform 1, the combined switch 2, the clock spring 3, the first driving device and the two groups of second driving devices are respectively and positively and reversely connected through the two groups of second driving devices, and the combined switch 2, the clock spring 3 and the two groups of second driving devices are all connected with a PLC programmable control system. Thus, the frame platform 1 serves to support the entire test stand; the first driving device can realize forward and reverse rotation, the rotating speed of the first driving device can be adjusted according to the rotating speed range of the clock spring 3, the first driving device can adapt to high and low temperature environments, and the first driving device can be used for bidirectional rotation, so that the test requirement is met; the first driving device drives the clock spring 3 to rotate forward and backward; the second driving device can play a role of driving the combination switch 2, and when one second driving device drives outwards, the combination switch 2 is pushed to move, so that the combination switch 2 is opened; when the second driving means is extended and contracted inward, the combination switch 2 is restored to the original state, and the combination switch 2 is turned off. Meanwhile, when the other second driving device is driven outwards, the combined switch 2 is pushed to move, so that the combined switch 2 is opened; when the second driving means is extended and contracted inward, the combination switch 2 is restored to the original state, and the combination switch 2 is turned off. The second driving device can realize the automatic return of the opening and closing of the combined switch 2 in two directions, and one cycle is completed. The required number of tests were completed by rotation, thereby completing the endurance test. The combination switch 2 and the clock spring 3 are detachably and fixedly connected, so that the combination switch 2 and the clock spring 3 are easy to detach and mount, and the efficiency of a durability test is improved. The clock spring 3 is detachably and fixedly connected to the middle part of the frame platform 1, so that the clock spring 3 is convenient to detach and install; the first driving device is fixedly connected to the top of the frame platform 1, and the frame platform 1 provides supporting force and mounting points for the first driving device. The whole test bench is connected into a PLC control program, and automation of the whole test action, including automatic operation, process control, automatic counting, automatic circulation, fault alarm and the like, is realized by utilizing the PLC program. The labor intensity can be reduced and the test efficiency can be improved by the control of the PLC programmable control system. The frame platform 1 has simple structure, convenient maintenance and low cost. The test bench can be used for testing in severe test environments such as high temperature, low temperature and the like. Compared with the prior art, the automobile combined switch endurance test stand has the advantages that: the operation force of the combined switch 2 is adjustable, the clock spring 3 can realize bidirectional rotation, and the PLC programmable control system can be used for controlling, so that manual operation test is replaced. More preferably, the frame platform 1 is made of an aluminum alloy material. The aluminum alloy is an aluminum product, and has good corrosion resistance in severe environments such as air, water, petrochemical systems, high temperature, high and low temperature and the like; the frame platform 1 is provided with a special T-shaped groove, so that the frame platform 1 is convenient to assemble and disassemble; the frame platform 1 is dirt-resistant, easy to process and simple to maintain; meanwhile, the aluminum alloy is light and handy, and the carrying is convenient. The combination switch 2 and the clock spring 3 are fixedly arranged on the frame platform 1 according to the mode of real vehicle installation by utilizing a fixed mounting hole of the combination switch 2 and the clock spring 3 fixed on the real vehicle.
Referring to fig. 1 to 3, a circular shaft assembly 4 is disposed between the clock spring 3 and the first driving device, two ends of the circular shaft assembly 4 are detachably and fixedly connected to the first driving device and the clock spring 3, and the clock spring 3 and the circular shaft assembly 4 rotate forward and backward through the first driving device. In this way, the circular shaft assembly 4 serves to connect the combination switch 2 and the first driving means, while reducing impact energy during the test. The first driving device drives the circular shaft assembly 4 so as to drive the clock spring 3 to rotate forward and backward together. Further preferably, the circular shaft assembly 4 includes a first circular shaft 41, an energy absorbing member 42 and a third circular shaft 43, two ends of the energy absorbing member 42 are respectively connected to the lower portion of the first circular shaft 41 and the upper portion of the third circular shaft 43 in an expanding friction manner, the upper portion of the first circular shaft 41 is detachably and fixedly connected to the bottom of the first driving device, and the lower portion of the third circular shaft 43 is detachably and fixedly connected to the clock spring 3. Thus, the circular shaft assembly 4 comprises the first circular shaft 41, the energy absorbing piece 42 and the third circular shaft 43, the circular shaft assembly 4 adopts the sectional type, two ends of the energy absorbing piece 42 are connected to the lower part of the first circular shaft 41 and the upper part of the third circular shaft 43 in an expanding friction manner, and the energy absorbing piece 42 absorbs impact energy in the test process. Meanwhile, the sectional type circular shaft assembly 4 is adopted, so that the disassembly and assembly in the test process can be facilitated. A further preferred scheme is as follows: the energy absorbing member 42 is made of an elastic or high and low resistant resin material, and the first and third circular shafts 41 and 43 are made of an aluminum alloy material. In this way, the energy absorbing piece 42 is connected by elastic or high and low temperature resistant resin materials, the resin materials are connected with aluminum alloy materials at two ends through expansion friction, so that impact energy in the test process can be absorbed, and the sectional type circular shaft assembly 4 can be conveniently disassembled and assembled in the test process.
The invention relates to an automobile combined switch endurance test stand, referring to the related drawings of fig. 1 to 3, on the basis of the previous technical scheme, the first driving device is a forward and reverse motor 5, a shell of the forward and reverse motor 5 is detachably and fixedly connected to the top of a frame platform 1, and a rotating shaft of the forward and reverse motor 5 is detachably and fixedly connected to the top of a circular shaft assembly 4. Therefore, the forward and reverse rotation of the forward and reverse rotation motor 5 can be realized, the rotating speed of the forward and reverse rotation motor 5 can be adjusted according to the rotating speed range of the clock spring 3, the high and low temperature environment can be adapted, and the requirements of a laboratory can be met by using forward and reverse rotation voltage. The power supply of the forward and reverse rotation motor 5 is connected, the forward and reverse rotation motor 5 can be driven to rotate, the clock spring 3 is driven to rotate for a certain angle, and the angle can be precisely controlled by a PLC program; according to the characteristics of the combined switch 2, the combined switch 2 automatically returns to the neutral position; this completes one process of the combination switch 2 from on to off.
The invention relates to an automobile combined switch endurance test stand, referring to the related drawings of fig. 1 to 3, on the basis of the previous technical scheme, two groups of second driving devices respectively comprise a first cylinder 6 and a second cylinder 7, wherein the first cylinder 6 and the second cylinder 7 are oppositely arranged, the first cylinder body of the first cylinder 6 is fixedly connected to the front side of one side of a frame platform 1, the second cylinder body of the second cylinder 7 is fixedly connected to the rear side of one side of the frame platform 1, the first piston rod of the first cylinder 6 and the second piston rod of the second cylinder 7 are opposite, and the combined switch 2 is in releasable counterbalance with the first piston rod and the second piston rod. Thus, the first cylinder 6 and the second cylinder 7 are fixedly mounted on the frame platform 1 for driving the combination switch 2. The first cylinder 6 and the second cylinder 7 are selected to be adaptable to the high and low temperature environments. The large cavity gas circuit of the first air cylinder 6 is connected, compressed air enters the large cavity of the first air cylinder 6, and the first piston rod of the first air cylinder 6 extends outwards under the action of the compressed air to push the combination switch 2 to move and open; the small cavity air passage of the first air cylinder 6 is communicated, compressed air enters the small cavity of the first air cylinder 6, and the first piston rod of the first air cylinder 6 is recovered under the action of the compressed air, so that the combination switch 2 is opened and closed in one direction. The large cavity gas circuit of the second air cylinder 7 is connected, compressed air enters the large cavity of the second air cylinder 7, and the second piston rod of the second air cylinder 7 extends outwards under the action of the compressed air to push the combination switch 2 to move and open; the small cavity gas circuit of the second air cylinder 7 is communicated, compressed air enters the small cavity of the second air cylinder 7, and the second piston rod of the second air cylinder 7 is recovered under the action of the compressed air, so that the opening and closing of the combination switch 2 in the other direction are completed. Thus, the opening and closing in both directions completes one cycle. And then, counting is completed through the automatic counting function of the PLC, and the next cycle is automatically started until the required test times are required by the test. The further preferable scheme is as follows: the first cylinder 6 and the second cylinder 7 are respectively provided with a regulating valve and a throttle valve. In this way, the strokes of the first cylinder 6 and the second cylinder 7 are selected according to the strokes required by opening and closing of the switch, and the pressure regulating valve and the throttle valve are connected to the air inlet pipeline of the first cylinder 6 and the second cylinder 7, so that the purposes of adjusting the driving force of the first cylinder 6 and the second cylinder 7 and relieving the impact of the first cylinder 6 and the second cylinder 7 on the combined switch 2 are achieved. By combining the opening of the switch 2 in the opposite direction and the automatic return of the switch, one cycle is completed.
The invention relates to an automobile combined switch endurance test stand, referring to the related drawings of fig. 1 to 3, on the basis of the previous technical scheme, the top of a frame platform 1 is fixedly connected with a fixing plate 11, and a first driving device is detachably and fixedly connected to the fixing plate 11. Thus, the fixing plate 11 is fixedly connected to the top of the frame platform 1, and the fixing plate 11 plays a supporting role.
Referring to fig. 1 to 3, a load lamp 8 may be disposed on the frame platform 1, and the load lamp 8 is electrically connected with the combination switch 2. Thus, the combination switch 2 is electrically connected to the load lamp 8, and when the entire circuit is in the on state, the load lamp 8 is turned on. The load lamp 8 is a whole-line electrical appliance for ensuring that the switch works in the environment of the electrical appliance, so that the service condition of the switch on a real vehicle is more simulated.
Referring to fig. 1 to 3, the endurance test stand of the automobile combined switch of the invention can be based on the previous technical scheme, wherein the bottom of the frame platform 1 is fixedly connected with a universal wheel 9. Thus, by providing the universal wheel 9, the test stand can be moved. When the test environment is replaced, the test bed can be conveniently moved through the universal wheels 9. The switch and load lamp 8 is wired into the overall circuitry and uses a power source to provide a source of energy for the overall circuitry.
The foregoing description of the embodiments of the present invention should not be taken as limiting the scope of the invention, but rather should be construed in view of the following detailed description.

Claims (5)

1. The utility model provides an automobile combination switch endurance test rack which characterized in that: the combined switch (2) is detachably and fixedly connected to the clock spring (3), the clock spring (3) is detachably and fixedly connected to the middle of the frame platform (1), the first driving device is detachably and fixedly connected to the top of the frame platform (1), the clock spring (3) is positively and negatively connected to the middle of the frame platform (1) through the first driving device, the two groups of second driving devices are respectively and fixedly connected to the front part and the rear part of one side of the frame platform (1), the combined switch (2) is positively and reversely connected through the two groups of second driving devices, and the combined switch (2), the clock spring (3), the first driving devices and the two groups of second driving devices are all connected with a PLC programmable control system; a circular shaft assembly (4) is arranged between the clock spring (3) and the first driving device, two ends of the circular shaft assembly (4) are detachably and fixedly connected to the first driving device and the clock spring (3) respectively, and the clock spring (3) and the circular shaft assembly (4) rotate forward and backward through the first driving device; the circular shaft assembly (4) comprises a first circular shaft (41), an energy absorbing piece (42) and a third circular shaft (43), wherein two ends of the energy absorbing piece (42) are respectively connected to the lower part of the first circular shaft (41) and the upper part of the third circular shaft (43) in an expanding and friction mode, the upper part of the first circular shaft (41) is detachably and fixedly connected to the bottom of the first driving device, and the lower part of the third circular shaft (43) is detachably and fixedly connected to the clock spring (3); the energy absorbing piece (42) is made of elastic or high-low resistant resin material, and the first round shaft (41) and the third round shaft (43) are made of aluminum alloy material; the two groups of second driving devices are respectively a first air cylinder (6) and a second air cylinder (7), the first air cylinder (6) and the second air cylinder (7) are oppositely arranged, the first air cylinder body of the first air cylinder (6) is fixedly connected to the front side of one side of the frame platform (1), the second air cylinder body of the second air cylinder (7) is fixedly connected to the rear side of one side of the frame platform (1), a first piston rod of the first air cylinder (6) and a second piston rod of the second air cylinder (7) are opposite, and the combined switch (2) is respectively in releasable contact with the first piston rod and the second piston rod; the top of the frame platform (1) is fixedly connected with a fixing plate (11), and the first driving device is detachably and fixedly connected to the fixing plate (11).
2. The automobile combination switch endurance test stand of claim 1, wherein: the first driving device is a forward and reverse rotation motor (5), a shell of the forward and reverse rotation motor (5) is detachably and fixedly connected to the top of the frame platform (1), and a rotating shaft of the forward and reverse rotation motor (5) is detachably and fixedly connected to the top of the circular shaft assembly (4).
3. The automobile combination switch endurance test stand of claim 1, wherein: and the first cylinder (6) and the second cylinder (7) are respectively provided with a regulating valve and a throttle valve.
4. The automobile combination switch endurance test stand of claim 1, wherein: the frame platform (1) is provided with a load lamp (8), and the load lamp (8) is electrically connected with the combination switch (2).
5. The automobile combination switch endurance test stand of claim 1, wherein: the bottom of the frame platform (1) is fixedly connected with a universal wheel (9).
CN201711473098.2A 2017-12-29 2017-12-29 Automobile combined switch endurance test bench Active CN109991014B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109991014B true CN109991014B (en) 2024-05-10

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201331426Y (en) * 2008-12-15 2009-10-21 比亚迪股份有限公司 Clock spring and steering column combined switch endurance test bed
CN201777295U (en) * 2010-02-26 2011-03-30 比亚迪股份有限公司 Energy-absorbing steering shaft for vehicles
CN102004171A (en) * 2010-11-16 2011-04-06 浙江吉利汽车研究院有限公司 Automobile combined switch durability test device
CN102200486A (en) * 2010-03-26 2011-09-28 重庆长安汽车股份有限公司 Test device for durability of turn switch of automobile headlamp
CN202522398U (en) * 2012-02-21 2012-11-07 浙江豪情汽车制造有限公司 Durability test device for clock spring, steering column and intermediate shaft of automobile
CN204296849U (en) * 2014-12-19 2015-04-29 陕西汽车集团有限责任公司 Steering axles
CN205317451U (en) * 2015-10-30 2016-06-15 法雷奥汽车内部控制(深圳)有限公司 Car steering column combination switch clock spring's testing arrangement
CN207866531U (en) * 2017-12-29 2018-09-14 上汽通用五菱汽车股份有限公司 A kind of automobile combined switch endurance test rack

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201331426Y (en) * 2008-12-15 2009-10-21 比亚迪股份有限公司 Clock spring and steering column combined switch endurance test bed
CN201777295U (en) * 2010-02-26 2011-03-30 比亚迪股份有限公司 Energy-absorbing steering shaft for vehicles
CN102200486A (en) * 2010-03-26 2011-09-28 重庆长安汽车股份有限公司 Test device for durability of turn switch of automobile headlamp
CN102004171A (en) * 2010-11-16 2011-04-06 浙江吉利汽车研究院有限公司 Automobile combined switch durability test device
CN202522398U (en) * 2012-02-21 2012-11-07 浙江豪情汽车制造有限公司 Durability test device for clock spring, steering column and intermediate shaft of automobile
CN204296849U (en) * 2014-12-19 2015-04-29 陕西汽车集团有限责任公司 Steering axles
CN205317451U (en) * 2015-10-30 2016-06-15 法雷奥汽车内部控制(深圳)有限公司 Car steering column combination switch clock spring's testing arrangement
CN207866531U (en) * 2017-12-29 2018-09-14 上汽通用五菱汽车股份有限公司 A kind of automobile combined switch endurance test rack

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