CN220398899U - Front auxiliary frame test fixture - Google Patents
Front auxiliary frame test fixture Download PDFInfo
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- CN220398899U CN220398899U CN202321194598.3U CN202321194598U CN220398899U CN 220398899 U CN220398899 U CN 220398899U CN 202321194598 U CN202321194598 U CN 202321194598U CN 220398899 U CN220398899 U CN 220398899U
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- 238000012360 testing method Methods 0.000 title claims abstract description 164
- 239000000725 suspension Substances 0.000 claims description 59
- 238000009434 installation Methods 0.000 claims description 27
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 38
- 125000004122 cyclic group Chemical group 0.000 description 21
- 239000003381 stabilizer Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 238000004088 simulation Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model discloses a front auxiliary frame testing tool which comprises a fixing assembly and a testing assembly, wherein the fixing assembly and the testing assembly are detachably mounted with a front auxiliary frame, the fixing assembly comprises fixing columns and a vehicle body mounting block, a plurality of fixing columns can be combined into a fixing unit, the fixing unit is detachably mounted on a testing platform, one side of the vehicle body mounting block is detachably mounted on the fixing unit, and the other side of the vehicle body mounting block is connected with the front auxiliary frame; the front auxiliary frame is fixed on the test platform by the fixing component and is connected with the test component, the frequency and the size of output load of the servo actuator are set, and the circulating force load or the static force load is transmitted to different test mounting points of the front auxiliary frame through the connecting rod of the actuator, so that the structural strength and the fatigue durability test data of the front auxiliary frame are obtained, the mechanical property and the fatigue durability of the front auxiliary frame are evaluated, the real vehicle test working condition can be effectively simulated, and the test efficiency and the accuracy are improved.
Description
Technical Field
The utility model belongs to the technical field of auxiliary frame bench test development, and particularly relates to a front auxiliary frame test fixture.
Background
The front auxiliary frame is a chassis structural part of a passenger car and is an installation platform of important parts such as a steering knuckle, a control arm, a stabilizer bar, a steering gear and the like, the driving experience, the driving performance and the reliability of the vehicle are directly determined, the structural strength and the fatigue durability of the chassis parts are required to be tested, and the mechanical properties and the fatigue durability of the chassis parts are evaluated by analyzing and judging relevant test data.
The real lane test has the advantages that due to the fact that the difference exists in the environmental conditions of the test roads, the external random interference factors are more, the test period is longer, the cost is higher, possible defects in the part design and manufacturing process cannot be fed back in time, and the product development efficiency is reduced; meanwhile, the existing test device has limited test functions, and can not perform fatigue endurance tests in different directions on different parts of the front auxiliary frame, so that the test efficiency is low, and the test data is not accurate enough.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide a front auxiliary frame testing tool.
The technical scheme adopted by the utility model is as follows: the device comprises a fixing assembly and a test assembly, wherein the fixing assembly and the test assembly are detachably mounted with a front auxiliary frame, the fixing assembly comprises fixing columns and a vehicle body mounting block, a plurality of fixing columns can be combined into a fixing unit, the fixing unit is detachably mounted on a test platform, one side of the vehicle body mounting block is detachably mounted on the fixing unit, and the other side of the vehicle body mounting block is connected with the front auxiliary frame; the test assembly comprises a connector, the connector is connected with the front auxiliary frame, and one side, away from the front auxiliary frame, of the connector is connected with an actuator connecting rod.
Preferably, the fixing column comprises a first fixing column and a second fixing column, wherein the first fixing column and the second fixing column are positioned on two opposite sides of the front auxiliary frame and are correspondingly installed on the installation point of the front auxiliary frame respectively.
Preferably, two fixing assemblies are provided, the two fixing assemblies are positioned at the left side and the right side of the front auxiliary frame, and the two fixing assemblies are arranged in a mirror image mode by taking the center of the front auxiliary frame as a symmetrical plane.
As a preferred mode of the utility model, the test assembly further comprises a control arm connector, one end of the control arm connector is hinged on a control arm tail end ball pin of the front auxiliary frame, and the other end of the control arm connector is connected with the actuator connecting rod; the test assemblies are two, and the two test assemblies are correspondingly connected to the control arms at the two ends of the front auxiliary frame respectively.
As the preferable mode of the utility model, the test assembly further comprises a left suspension joint and an end joint bearing, wherein one end of the left suspension joint is fixedly arranged on a left suspension bracket, the other end of the left suspension joint is connected with the actuator connecting rod through the end joint bearing, and the left suspension joint is positioned between the two first fixing columns and is close to a left control arm of the front auxiliary frame.
As the preferable mode of the utility model, the test assembly further comprises a right suspension joint and an end joint bearing, wherein one end of the right suspension joint is fixedly arranged on a right suspension bracket, the other end of the right suspension joint is connected with the actuator connecting rod through the end joint bearing, and the right suspension joint is positioned between the two first fixing columns and is close to a right control arm of the front auxiliary frame.
As the optimization of the utility model, the test assembly further comprises a sleeve and end joint bearings, wherein the sleeve is arranged in the end joint bearings and hinged with the tail end mounting holes of the stabilizing rod through bolts, one side of each end joint bearing is fixedly connected with one end of each actuator connecting rod through threads, actuators are connected with the other end of each actuator connecting rod, two test assemblies are arranged, and the two test assemblies are correspondingly connected with the mounting holes at the two ends of the stabilizing rod of the front auxiliary frame respectively.
As a preferred aspect of the present utility model, the test assembly further includes a steering gear joint, one end of the steering gear joint is hinged to the steering gear, and the other end of the steering gear joint is hinged to the actuator connecting rod through an end joint bearing; the two test assemblies are arranged at two ends of the steering machine and are detachably mounted with the steering machine.
The beneficial effects of the utility model are as follows:
1. the front auxiliary frame is fixed on a test platform by the fixing component, is connected with the test component, sets the times, the frequencies and the sizes of output loads of the servo actuators, transmits cyclic force loads or static force loads to different test mounting points of the front auxiliary frame through the actuator connecting rod, and acquires structural strength and fatigue durability test data of the front auxiliary frame so as to evaluate the mechanical properties and the fatigue durability of the front auxiliary frame, effectively simulate real vehicle test working conditions, shorten test period, reduce test cost and improve test efficiency and accuracy;
the use condition of the front auxiliary frame on a real road can be effectively simulated by simulating the transverse circulating force load and the static force load transmitted to the front auxiliary frame control arm by the wheels, and the fatigue durability and the structural strength of the front auxiliary frame can be detected;
the use condition of the front auxiliary frame on a real road can be effectively simulated by simulating the combined direction circulating force load and static force load transmitted to the front auxiliary frame control arm by the wheels, and the fatigue durability and the structural strength of the front auxiliary frame can be detected;
the longitudinal circulating force load and the static force load transmitted to the left suspension bracket of the front auxiliary frame by the simulation engine can effectively simulate the use condition of the front auxiliary frame on a real road, and the fatigue durability and the structural strength of the front auxiliary frame can be detected;
the longitudinal circulating force load and the static force load transmitted to the right suspension bracket of the front auxiliary frame by the simulation engine can effectively simulate the use condition of the front auxiliary frame on a real road, and the fatigue durability and the structural strength of the front auxiliary frame can be detected;
the vertical circulating force load and the static force load transmitted to the front auxiliary frame stabilizer bar by the simulated wheels can effectively simulate the use condition of the front auxiliary frame on a real road, and the fatigue durability and the structural strength of the front auxiliary frame are detected;
the transverse circulating force load and the static force load transmitted to the front auxiliary frame steering machine by the simulated wheels can effectively simulate the use condition of the front auxiliary frame on a real road, and the fatigue durability and the structural strength of the front auxiliary frame steering machine can be detected. The cost of the real vehicle test is reduced, and the test precision and efficiency are improved.
2. By changing the installation positions and directions of the servo actuator (not shown), the actuator connecting rod (not shown), the guide assembly (not shown) and the control arm joint, the cyclic force load or the static load in the horizontal plane synthesis direction is simulated to be applied to the control arm installation point of the front auxiliary frame at the wheel center position, namely, the cyclic force load or the static load in two different directions of longitudinal (X direction) and transverse (Y direction) is simultaneously applied to the front auxiliary frame. The control arm is installed on the front auxiliary frame, the actuator connecting rod, the guide assembly and the control arm connector are sequentially connected, the position of the test assembly is adjusted to point to the specified loading direction, and then the control arm connector and the ball pin at the tail end of the control arm are connected, so that the direction of the acting force of the actuator loaded on the front auxiliary frame and the force value precision are ensured, and the installation efficiency and maintainability of the test device are improved.
3. Through the experimental subassembly simulation chassis structure that engine suspension connects, end joint bearing, actuator connecting rod and actuator (not shown) are constituteed, apply longitudinal (X to) cyclic force load and static load to the left suspension support position of preceding sub vehicle frame, engine suspension connects one end and the left suspension mounting hole of preceding sub vehicle frame are fixed, the other end passes through bolt and end joint bearing and articulates, end joint bearing and actuator connecting rod are connected and are locked with the nut, so both eliminated the motion interference of actuator and engine suspension connects, improved experimental simulation precision and test device's life again.
4. Through the test assembly simulation chassis structure that engine suspension connects, end joint bearing, actuator connecting rod and actuator (not shown) are constituteed, apply longitudinal (X to) cyclic force load and static load to the right side suspension support position of preceding sub vehicle frame, engine suspension connects one end and the right side suspension mounting hole of preceding sub vehicle frame is fixed, the other end passes through bolt and end joint bearing and articulates, end joint bearing and actuator connecting rod are connected and are locked with the nut, so both eliminated the motion interference of actuator and engine suspension connects, improved experimental simulation precision and test device's life again.
5. Through the experimental subassembly simulation chassis structure that sleeve pipe, end joint bearing, actuator connecting rod and actuator (not shown) are constituteed, apply vertical (Z to) cyclic force load and static load to preceding sub vehicle frame stabilizer bar, the sleeve pipe is installed in the round hole of end joint bearing to through the terminal round hole of bolt and stabilizer bar articulated, the other end of end joint bearing passes through screw thread and actuator connecting rod fixedly, the other end and the actuator of actuator connecting rod are connected, so both eliminated the motion interference of actuator and stabilizer bar, improved experimental simulation precision and test device's life again.
6. Through the test assembly simulation chassis structure that steering gear, steering gear connect, direction subassembly (not shown) and actuator (not shown) are constituteed, apply horizontal (Y to) cyclic force load and static load to the steering gear support position of preceding sub vehicle frame, steering gear connects one end and the terminal ball pin of steering gear and connects, and the other end passes through bolt and direction subassembly and connects, and direction subassembly passes through the actuator connecting rod and is connected with the actuator, has so both eliminated the motion interference of actuator and steering gear, has improved the simulation precision and the life of test device again.
7. The two first fixing columns and the four second fixing columns of the front auxiliary frame simulate the connection structure form of the front auxiliary frame and the vehicle body, and meet the rigidity requirement of the vehicle body, so that the stress deformation condition of the front auxiliary frame is consistent with the stress deformation condition of the vehicle when the vehicle runs on an actual road in the test process.
8. The front auxiliary frame body fixing component simulates the connection structure form of the front auxiliary frame and the vehicle body, and considers the fatigue endurance test and strength test conditions, the fixing component consists of fixing column units, is of a welded steel plate structure, and is provided with reinforcing ribs at stress concentration positions, so that the aim of structural reinforcement is fulfilled, and the structural rigidity is ensured to meet the test requirements. Simultaneously, processing bolt through-hole at fixed column unit surface for connect each other to fixed mounting piece, accessible change fixed column position changes the position of installation piece relative fixed column, with structure and space position change of adaptation preceding sub vehicle frame body, control arm, stabilizer bar and steering engine, has stronger assembly flexibility to other types six-point connection preceding sub vehicle frame, promotes its multipurpose value.
9. The fixed column unit and the vehicle body installation block are subjected to structural reinforcement, have enough structural rigidity, can bear the acting force applied to the front auxiliary frame by the actuator, effectively fix the front auxiliary frame, ensure that the actuator outputs acting force with specified direction and force value according to the requirement of test items, and have simple structure, and are easy to assemble and maintain.
10. The front auxiliary frame is fixed on the test platform in the same direction according to the real vehicle installation, and on the premise of meeting the circulating force load and the static force load required by the test standard, the structural strength test and the fatigue durability test can be carried out on the front auxiliary frame body and the suspension parts, so that the structure of the test device is simplified, and the assembly efficiency of the test device is improved.
Drawings
The utility model will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic view of a control arm mounting point horizontal plane transverse (Y-direction) loading condition according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a control arm mounting point level resultant force (X+Y direction) loading state according to an embodiment of the present utility model;
FIG. 3 is a schematic view of an engine left suspension mounting point horizontal plane longitudinal (X-direction) loading condition according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a horizontal longitudinal (X-direction) loading condition of a right suspension mounting point of an engine according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a vertical (Z-direction) loading state of a stabilizer bar according to an embodiment of the present utility model;
fig. 6 is a schematic view of a transverse (Y-direction) loading state of a steering engine mounting point according to an embodiment of the present utility model.
In the figure: 1. a front subframe; 2. a fixing assembly; 3. a test assembly; 21. a first fixing column; 22. a second fixing column; 23. a vehicle body mounting block; 13. a control arm; 14. a stabilizer bar; 15. a steering gear; 16. a left suspension bracket; 17. a right suspension bracket; 18. a control arm support; 31. an actuator connecting rod; 32. an end knuckle bearing; 33. a control arm joint; 34. a left suspension joint; 35. a right suspension joint; 36. a sleeve; 37. and a steering gear joint.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
As shown in fig. 1, the present embodiment provides a front subframe 1 test apparatus, a control arm bracket 18 lateral (Y-direction) cyclic force load and static load bench test apparatus, a stationary assembly 2 mimicking a vehicle body, comprising: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test bed, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3 mimicking the lateral force load of the control arm 13 comprises: the actuator (not shown), the actuator connecting rod (not shown), the guide assembly (not shown) and the control arm joint 33 are connected in sequence, and the direction of the combined test assembly 3 is adjusted to be transverse. The ball pin and the control arm joint 33 which are connected and fixed with the tail end of the control arm 13 are the same as the left side in the step of installing the right side test assembly 3, and the mirror image assembly is the same as the left side test assembly 3; after the test device is combined, the actuator can apply a transverse cyclic force load or a static load with a specified loading speed to the control arm 13 of the front auxiliary frame 1 according to the loading times, the running frequency and the force value set by a program.
As shown in fig. 2, the present embodiment provides a front subframe 1 test apparatus, a fixing assembly 2 imitating a vehicle body includes: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test platform, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3, which mimics the resultant directional force load of the control arm 13, comprises: the actuator (not shown), the actuator connecting rod (not shown), the guide assembly (not shown) and the control arm joint 33 are sequentially connected with the actuator, the actuator connecting rod, the guide assembly and the control arm joint 33, the direction of the combined test assembly 3 is adjusted to the resultant force direction between the transverse direction and the longitudinal direction, the ball pin at the tail end of the control arm 13 and the control arm joint 33 are connected and fixed, the step of installing the right test assembly 3 is the same as that of the left test assembly 3, and the mirror image assembly is the same as that of the left test assembly 3; after the test device is combined, the actuator can apply a cyclic force load in the combined direction or a static load with a specified loading speed to the control arm 13 of the front subframe 1 according to the loading times, the running frequency and the force value set by a program.
As shown in fig. 3, the present embodiment provides a front subframe 1 test apparatus, a longitudinal (X-direction) cyclic force load and static load bench test apparatus of an engine left suspension bracket 16, a stationary assembly 2 mimicking a vehicle body, comprising: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test platform, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3 mimicking the left suspension longitudinal force load of an engine comprises: an actuator (not shown), an actuator connecting rod 31, an end joint bearing 32 and an engine left suspension joint 34 are sequentially connected with the actuator, the actuator connecting rod 31 and the end joint bearing 32, and the direction of the combined test assembly 3 is adjusted to be longitudinal; the left engine suspension joint 34 is mounted on the left engine suspension bracket 16 of the front auxiliary frame 1 by bolts, then the joint bearing 32 at the hinged end of the bolts and the left engine suspension joint 34 are used for hinging, after the test device is combined, the actuator can apply longitudinal cyclic force load or static force load with specified loading speed to the left engine suspension bracket 16 of the front auxiliary frame 1 according to the loading times, the running frequency and the force value set by programs.
As shown in fig. 4, the present embodiment provides a front subframe 1 test apparatus, a longitudinal (X-direction) cyclic force load and static load bench test apparatus of an engine right suspension bracket 17, a stationary assembly 2 mimicking a vehicle body, comprising: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test platform, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3 mimicking the engine right suspension longitudinal force load comprises: an actuator (not shown), an actuator connecting rod 31, an end joint bearing 32 and an engine right suspension joint 35 are sequentially connected with the actuator, the actuator connecting rod 31 and the end joint bearing 32, and the direction of the combined test assembly 3 is adjusted to be longitudinal; the right engine suspension joint 35 is mounted on the right engine suspension bracket 17 of the front auxiliary frame 1 by bolts, then the joint bearing 32 at the hinged end of the bolts and the right engine suspension joint 35 are used for hinging, after the test device is combined, the actuator can apply longitudinal cyclic force load or static force load with specified loading speed to the right engine suspension bracket 17 of the front auxiliary frame 1 according to the loading times, the running frequency and the force value set by programs.
As shown in fig. 5, the present embodiment provides a front subframe 1 test apparatus, a stabilizer bar 14 vertical (Z-direction) cyclic force load and static load bench test apparatus, a fixing assembly 2 imitating a vehicle body includes: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test platform, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3, which mimics the vertical force load of the stabilizer bar 14, comprises: the actuator (not shown), the actuator connecting rod 31, the end joint bearing 32 and the sleeve 36 are sequentially connected with the actuator, the actuator connecting rod 31 and the end joint bearing 32, the sleeve 36 is placed into a round hole of the end joint bearing 32, the direction of the combined test assembly 3 is adjusted to be vertical, the stabilizer bar 14 is mounted on a bracket of the stabilizer bar 14 of the front auxiliary frame 1 by bolts, then the sleeve 36 in the end joint bearing 32 and round holes at two ends of the stabilizer bar 14 are hinged by bolts, after the test device is combined, the actuator can apply vertical circulating force load or static load with specified loading speed to the stabilizer bar 14 of the front auxiliary frame 1 according to the loading times, the running frequency and the force value set by programs.
As shown in fig. 6, the present embodiment provides a front subframe 1 test apparatus, a steering frame lateral (Y-direction) cyclic force load and static load bench test apparatus, a stationary assembly 2 imitating a vehicle body, comprising: the fixing column unit consists of a plurality of fixing columns and a vehicle body mounting block 23, the fixing column unit can consist of one or a plurality of fixing columns according to the mounting height, and the stacked fixing column units are connected with the plurality of fixing columns by bolts; in the embodiment, according to the position specified by the test item, four first fixing columns 21 are assembled into two fixing units, the bottoms of the two fixing units and four second fixing columns 22 are respectively installed on a test platform, a vehicle body installation block 23 is installed at a designated position on the surface of the fixing column by bolts, and then the vehicle body installation block is detachably installed with an auxiliary frame installation point; the front auxiliary frame 1 fixing component 2 simulates the connection mode of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real-lane road driving process in the bench test process. The test assembly 3, which mimics the lateral force load of the steering gear 15, comprises: an actuator (not shown), an actuator connecting rod (not shown), a guide assembly (not shown) and a steering joint 37 are sequentially connected with the actuator, the actuator connecting rod, the guide assembly and the steering joint 37, and the direction of the combined test assembly 3 is adjusted to be transverse; the steering gear 15 is mounted on the steering gear bracket of the front auxiliary frame 1 by bolts, and then the ball pins at the two ends of the steering gear 15 and the steering gear joints 37 are connected and fixed; after the test device is combined, the actuator can apply transverse cyclic force load or static force load with specified loading speed to the steering engine bracket of the front auxiliary frame 1 according to the loading times, the running frequency and the force value set by a program.
The working principle of the utility model is as follows:
one or more fixing columns can be installed and connected according to test requirements to form a fixing column unit. The vehicle body mounting block 23 is detachably mounted at the designated position of the fixed column in different positions and directions, the front auxiliary frame 1 is horizontally mounted on the fixed assembly 2 in the same direction as the real vehicle is assembled, the fixed assembly 2 is mounted on the test platform through the pressing plate and the bolts, the different parts of the front auxiliary frame 1 are tested through the test assembly 3, the structural strength and fatigue durability test data of the front auxiliary frame 1 are obtained, the fixed assemblies 2 on the left side and the right side of the front auxiliary frame 1 are mirror images, the structures and the positions are the same, and the assemblies are assembled in each embodiment.
In the first embodiment, the front subframe 1 is mounted on the fixed assembly 2 according to the same direction of the real vehicle assembly, and the actuators transmit the cyclic force load or the static force load in the transverse direction (Y direction) to the control arm 13 through the actuator connecting rod (not shown), the guide assembly (not shown) and the control arm joint 33, so as to perform the fatigue endurance test or the static force test of the control arm bracket 18 of the front subframe 1 in the transverse direction (Y direction), and test the fatigue endurance performance and the structural strength of the front subframe 1, wherein one of the left and right sides of the test assembly is provided, and the planes along the center of the front subframe 1 are mirror images of each other.
In the second embodiment, the front subframe 1 is mounted on the fixed assembly 2 in the same direction as the real vehicle assembly, and the actuators transmit the cyclic force load or static force load in the resultant direction (X direction+y direction) to the control arm 13 through the actuator connecting rod (not shown), the guide assembly (not shown) and the control arm joint 33, so that the fatigue endurance test or static force test in the resultant direction (X direction+y direction) of the control arm support 18 of the front subframe 1 is performed to test the fatigue endurance performance and structural strength of the front subframe 1.
In the third embodiment, the front subframe 1 is mounted on the fixing assembly 2 according to the same direction of real vehicle assembly, one end of the left engine suspension joint 34 is fixed on the left suspension bracket 16 of the front subframe 1, the other end is hinged with the end joint bearing 32, the actuator transmits the circulating force load or static force load in the longitudinal direction (X direction) to the front subframe 1 through the actuator connecting rod 31 and the end joint bearing 32, and the longitudinal (X direction) fatigue endurance test or static force test of the left suspension bracket 16 of the front subframe 1 is performed to test the fatigue endurance performance and structural strength of the front subframe 1.
In the fourth embodiment, the front subframe 1 is mounted on the fixing assembly 2 in the same direction as the real vehicle assembly, one end of the engine right suspension joint 35 is fixed on the right suspension bracket 17 of the front subframe 1, the other end is hinged with the end joint bearing 32, the actuator transmits the circulating force load or static force load in the longitudinal direction (X direction) to the front subframe 1 through the actuator connecting rod 31 and the end joint bearing 32, and the front subframe 1 is tested for fatigue durability test or static force test in the longitudinal direction (X direction) of the right suspension bracket 17 of the front subframe 1.
In the fifth embodiment, the front subframe 1 is mounted on the fixed assembly 2 in the same direction as the real vehicle assembly, the stabilizer bar 14 is mounted on the front subframe 1, the actuator (not shown) transmits a vertical cyclic force load or static force load to the stabilizer bar 14 through the actuator connecting rod 31, the end joint bearing 32 and the sleeve 36, and a vertical (Z-direction) fatigue endurance test or static force test of the stabilizer bar 14 of the front subframe 1 is performed to test the fatigue endurance performance and structural strength of the front subframe 1 and the stabilizer bar 14.
In the sixth embodiment, the front subframe 1 is mounted on the fixed assembly 2 in the same direction as the real vehicle assembly, the steering gear 15 is mounted on the front subframe 1, the actuators (not shown), the guide assembly (not shown) and the steering gear joint 37 are horizontally and transversely arranged, the actuators transmit cyclic force or static load to the steering gear 15, and the front subframe 1 is stressed, and a transverse (Y-direction) fatigue endurance test or static test of the front subframe 1 steering gear bracket is performed to test the fatigue endurance performance and structural strength of the front subframe 1.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. Front auxiliary frame test fixture, its characterized in that: the device comprises a fixing assembly and a test assembly, wherein the fixing assembly and the test assembly are detachably mounted with a front auxiliary frame, the fixing assembly comprises fixing columns and a vehicle body mounting block, a plurality of fixing columns can be combined into a fixing unit, the fixing unit is detachably mounted on a test platform, one side of the vehicle body mounting block is detachably mounted on the fixing unit, and the other side of the vehicle body mounting block is connected with the front auxiliary frame; the test assembly comprises a connector, the connector is connected with the front auxiliary frame, and one side, away from the front auxiliary frame, of the connector is connected with an actuator connecting rod.
2. The front subframe testing tool according to claim 1, wherein: the fixed column comprises a first fixed column and a second fixed column, wherein the first fixed column and the second fixed column are positioned on two opposite sides of the front auxiliary frame and are respectively and correspondingly installed on the installation point of the front auxiliary frame.
3. The front subframe testing tool according to claim 2, wherein: the two fixing assemblies are arranged on the left side and the right side of the front auxiliary frame, and the center of the front auxiliary frame is used as a symmetrical plane to be arranged in a mirror image mode.
4. A front subframe test fixture as recited in claim 3, wherein: the test assembly further comprises a control arm connector, one end of the control arm connector is hinged to a ball pin at the tail end of the control arm of the front auxiliary frame, and the other end of the control arm connector is connected with the actuator connecting rod; the test assemblies are two, and the two test assemblies are correspondingly connected to the control arms at the two ends of the front auxiliary frame respectively.
5. A front subframe test fixture as recited in claim 3, wherein: the test assembly further comprises a left suspension joint and an end joint bearing, one end of the left suspension joint is fixedly arranged on the left suspension support, the other end of the left suspension joint is connected with the actuator connecting rod through the end joint bearing, and the left suspension joint is positioned between the two first fixing columns and is close to the left control arm of the front auxiliary frame.
6. A front subframe test fixture as recited in claim 3, wherein: the test assembly further comprises a right suspension joint and an end joint bearing, one end of the right suspension joint is fixedly arranged on the right suspension support, the other end of the right suspension joint is connected with the actuator connecting rod through the end joint bearing, and the right suspension joint is positioned between the two first fixing columns and is close to a right control arm of the front auxiliary frame.
7. A front subframe test fixture as recited in claim 3, wherein: the test assembly further comprises a sleeve and an end joint bearing, wherein the sleeve is installed in the end joint bearing and hinged to the end mounting hole of the stabilizing rod through a bolt, one side of the end joint bearing is fixedly connected with one end of the actuator connecting rod through a thread, the other end of the actuator connecting rod is connected with an actuator, the number of the test assembly is two, and the number of the test assembly is two.
8. A front subframe test fixture as recited in claim 3, wherein: the test assembly further comprises a steering gear connector, one end of the steering gear connector is hinged to the steering gear, and the other end of the steering gear connector is hinged to the actuator connecting rod through an end joint bearing; the two test assemblies are arranged at two ends of the steering machine and are detachably mounted with the steering machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321194598.3U CN220398899U (en) | 2023-05-17 | 2023-05-17 | Front auxiliary frame test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321194598.3U CN220398899U (en) | 2023-05-17 | 2023-05-17 | Front auxiliary frame test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN220398899U true CN220398899U (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321194598.3U Active CN220398899U (en) | 2023-05-17 | 2023-05-17 | Front auxiliary frame test fixture |
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| Country | Link |
|---|---|
| CN (1) | CN220398899U (en) |
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2023
- 2023-05-17 CN CN202321194598.3U patent/CN220398899U/en active Active
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