Automobile steering mechanism collision test clamping device and test method thereof

Abstract

The application discloses a kind of automobile steering mechanism collision test clamping devices, belong to automobile steering mechanism production processing field.Worker presses pressing piece from outside to inside, pressing piece is pushed to pressure-bearing cylinder inside, so that pressure-bearing ball is pressed to the side end surface of main bearing hole, to impact collision to the side end surface of main bearing hole, detect main bearing hole after being impacted, pressing piece under extrusion will its inner cavity pre-stored gas be injected to the side of main bearing hole by permeable cavity, to the main bearing hole for injection treatment, to simulate the use of knuckle under strong wind environment, the outer surface of steering gear is contacted by the outer end surface of polishing ball, the outer surface of steering gear is contacted with polishing ball, when the whole device moves or swings, polishing ball continuously impacts the outer surface of steering gear, can simulate the use effect of steering gear under strong impact, whether reach its expected durability fatigue degree, and the connecting part of steering gear is clamped.

Description

Technical Field

[0001] This invention relates to the field of automotive steering mechanism manufacturing and processing, and more specifically, to an automotive steering mechanism collision test clamping device and its test method. Background Technology

[0002] The steering knuckle is a crucial component of the automotive steering axle, enabling stable vehicle movement and sensitive directional transmission. Its function is to transmit and bear the load from the front of the vehicle, supporting and driving the front wheels to rotate around the kingpin, thus steering the car. During vehicle operation, it withstands varying impact loads, therefore requiring high strength. Collision tests are necessary during the manufacturing process of the steering knuckle, and clamping devices are indispensable during these tests.

[0003] Patent No. CN201810529851.3 discloses a clamping structure for a rough and finish turning fixture for steering knuckles, used to clamp a steering knuckle placed on the working surface of the working disc of the rough and finish turning fixture. An auxiliary clamping head is provided on the working disc. The auxiliary clamping head includes a base and a first clamping part and a second clamping part that are symmetrically protruding from the base and pass through the working disc and are exposed on the working surface of the working disc. The clamping structure is inserted into the auxiliary clamping head. The rear end of the clamping structure is connected to a driving mechanism, and the front end is exposed on the working surface of the working disc. The clamping structure can clamp and release the steering knuckle under the drive of the driving mechanism.

[0004] This patent utilizes a special fixture to clamp the steering knuckle of a rough and precision car in one operation, thereby reducing logistics and turnover costs, alleviating the labor intensity of operators, and improving product accuracy; however, it cannot perform durability fatigue testing on the car steering mechanism while it is being clamped. Summary of the Invention

[0005] Technical problems to be solved

[0006] The purpose of this invention is to provide a clamping device and testing method for a collision test of an automobile steering mechanism, so as to solve the problems mentioned in the background art.

[0007] Technical solution

[0008] A clamping device for crash testing of an automobile steering mechanism includes a detection unit, a series rod, and a connecting rod. The detection unit includes a holding mechanism and a placement mechanism disposed on one side of the holding mechanism. The inner cavity of the placement mechanism is provided with a clamping mechanism. Two sets of placement mechanisms are connected in series by the series rod, and two sets of holding mechanisms are connected in series by the connecting rod.

[0009] Preferably, the holding mechanism includes a holding box and an inner cavity disposed within the inner cavity of the holding box. A connecting tube is provided on the side end face of the holding box, and a connecting tube is provided on the edge of the side end face of the holding box. The steering arm is placed into the inner cavity of the inner cavity, and an appropriate amount of acid water is poured into the inner cavity. The steering arm is placed in the inner cavity of the inner cavity for a certain period of time. The operator observes the steering arm placed in the inner cavity from the outside to see if its surface will foam under the soaking of acid water.

[0010] Preferably, the placement mechanism includes a placement frame and arrangement bars arranged on the side end face of the placement frame. A positioning cylinder is provided on one side of the inner cavity wall of the placement frame, and the side end face of the placement frame is installed on one side of the connecting block.

[0011] Preferably, the clamping mechanism includes a first receiving ring and a connecting plate disposed on one side of the first receiving ring, and a second receiving ring is disposed at the other end of the connecting plate. A placement cylinder is installed on the side end face of the second receiving ring, and an insert cylinder is disposed through the inner cavity of the placement cylinder.

[0012] Preferably, the clamping mechanism further includes a series cylinder and an assembly plate disposed on one side of the series cylinder. A setting cylinder is installed on the side end face of the assembly plate. A pressing mechanism is inserted into the inner cavity of the setting cylinder. The positioning cylinder is connected to the side end face of the setting cylinder. An air blowing device is connected to the inner cavity of the inner cavity to introduce gas into the inner cavity. The gas is transported to the inner cavity of the placement cylinder and the series cylinder through the connecting cylinder and the series cylinder, thereby performing a test on the steering mechanism in the device under strong wind conditions.

[0013] Preferably, the insert cylinder includes a cylinder body and a ring array of grinding balls arranged on the inner wall of the cylinder body. A connecting sleeve is provided in the middle of the cylinder body. The steering gear is fitted into the outer ring of the connecting sleeve. The outer end of the grinding balls contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding balls, the grinding balls continuously impact the outer surface of the steering gear during the movement or swinging of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it reaches its expected durability and fatigue, and clamp the connection of the steering gear.

[0014] Preferably, the pressing mechanism includes a pressing plate and a pressure-bearing cylinder disposed on the side end face of the pressing plate, and a pressure-bearing ball at the other end of the pressure-bearing cylinder. A through cavity is installed on the side end face of the pressure-bearing ball. Both the pressure-bearing ball and the through cavity are disposed through the inner cavity of the setting cylinder. The steering knuckle is inserted into the inner cavity of the setting cylinder, and the main bearing hole of the steering knuckle is placed into the inner cavity of the setting cylinder and laid on its bottom end face, so that the side end face of the main bearing hole is in contact with the outer surface of the pressure-bearing ball. The operator presses the pressing plate from the outside to the inside, and the pressing plate pushes the pressure-bearing cylinder inward, so that the pressure-bearing ball presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate, under the pressure, sprays the gas pre-stored in its inner cavity through the through cavity to one side of the main bearing hole, spraying the main bearing hole, thereby simulating the use of the steering knuckle in a strong wind environment.

[0015] Preferably, the other end of the connecting tube and the connecting tube is disposed on the side end face of the connecting block, the inner cavity of the internal cavity, the inner cavity of the connecting tube and the inner cavity of the connecting tube are connected, the inner cavity of the connecting tube is connected to the inner cavity of the connecting tube, and the inner cavity of the second receiving ring is connected to the inner cavity of the inserting tube.

[0016] A test method for a clamping device in a collision test of an automotive steering mechanism includes the following steps:

[0017] S1: Insert the steering knuckle into the inner cavity of the setting cylinder. Place the main bearing hole of the steering knuckle into the inner cavity of the setting cylinder and lay it on its bottom end face, so that the side end face of the main bearing hole is in contact with the outer surface of the pressure ball. The operator presses the pressing plate from the outside to the inside. The pressing plate pushes the pressure cylinder inward, so that the pressure ball presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate squeezes and sprays the gas pre-stored in its inner cavity through the through cavity to one side of the main bearing hole, spraying the main bearing hole, thereby simulating the use of the steering knuckle in a strong wind environment.

[0018] S2: The steering gear is fitted into the outer ring of the sleeve. The outer end of the grinding ball contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball, the grinding ball continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it has reached its expected durability fatigue, and clamp the connection of the steering gear.

[0019] S3: An air blowing device is connected to the inner cavity of the built-in cavity to introduce gas into the built-in cavity. The gas is then transported to the inner cavity of the placement cylinder and the series cylinder through the connecting cylinder and the series cylinder, thereby enabling the testing of the steering mechanism in the device under strong wind conditions.

[0020] S4: Place the steering arm into the inner cavity of the internal cavity, pour an appropriate amount of acid water into the inner cavity, and place the steering arm in the inner cavity for a certain period of time. The staff observes the steering arm placed in the inner cavity from the outside to see if there is any foaming phenomenon on its surface after being soaked in acid water.

[0021] Beneficial effects

[0022] Compared with the prior art, the advantages of this invention are:

[0023] 1. Insert the steering knuckle into the inner cavity of the setting cylinder. Place the main bearing hole of the steering knuckle into the inner cavity of the setting cylinder and lay it on its bottom end face, so that the side end face of the main bearing hole is in contact with the outer surface of the pressure ball. The operator presses the pressing plate from the outside to the inside. The pressing plate pushes the pressure cylinder inward, so that the pressure ball presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate squeezes and sprays the gas pre-stored in its inner cavity through the through cavity to one side of the main bearing hole, spraying the main bearing hole, thereby simulating the use of the steering knuckle in a strong wind environment.

[0024] 2. Insert the steering gear into the outer ring of the sleeve. The outer end of the grinding ball contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball, the grinding ball continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it reaches its expected durability and fatigue level, and clamp the connection of the steering gear.

[0025] 3. An air blowing device is connected to the inner cavity of the built-in cavity to introduce gas into the built-in cavity. The gas is then transported to the inner cavity of the placement cylinder and the series cylinder through the connecting cylinder and the series cylinder, thereby enabling the testing of the steering mechanism in the device under strong wind conditions.

[0026] 4. Place the steering arm into the inner cavity of the internal cavity, pour an appropriate amount of acid water into the inner cavity, and leave the steering arm in the inner cavity for a certain period of time. The staff should observe the steering arm placed in the inner cavity from the outside to see if there is any foaming on its surface after being soaked in acid water. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a collision test clamping device for an automobile steering mechanism according to the present invention;

[0028] Figure 2 This is a schematic diagram of the detection unit structure of a collision test clamping device for an automobile steering mechanism according to the present invention;

[0029] Figure 3 This is a schematic diagram of the holding mechanism of a collision test clamping device for an automobile steering mechanism according to the present invention.

[0030] Figure 4 This is a schematic diagram of the placement mechanism of the clamping device for a collision test of an automobile steering mechanism according to the present invention;

[0031] Figure 5 This is a schematic diagram of the clamping mechanism of a collision test clamping device for an automobile steering mechanism according to the present invention;

[0032] Figure 6 This is a cross-sectional view of the insert cylinder of a collision test clamping device for an automobile steering mechanism according to the present invention;

[0033] Figure 7 This is a schematic diagram of the pressing mechanism of a collision test clamping device for an automobile steering mechanism according to the present invention.

[0034] The following are the labeling instructions in the diagram: 1. Detection unit; 11. Container mechanism; 111. Container box; 112. Internal cavity; 113. Connecting tube; 114. Connecting tube; 12. Placement mechanism; 121. Placement rack; 122. Arrangement bar; 123. Positioning tube; 124. Connecting block; 13. Clamping mechanism; 131. First receiving ring; 132. Connecting plate; 133. Second receiving ring; 134. Placement tube; 135. Insertion tube; 1351. Cylinder body; 1352. Grinding ball; 1353. Sleeve tube; 136. Connecting tube; 137. Assembly plate; 138. Setting tube; 139. Pressing mechanism; 1391. Pressing plate; 1392. Pressure bearing tube; 1393. Pressure bearing ball; 1394. Through cavity; 2. Connecting rod; 3. Connecting rod. Detailed Implementation

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Please see Figures 1-7 The present invention provides a technical solution:

[0039] Example 1

[0040] A clamping device for a collision test of an automobile steering mechanism includes a detection unit 1, a series rod 2 and a connecting rod 3. The detection unit 1 includes a holding mechanism 11 and a placement mechanism 12 disposed on one side of the holding mechanism 11. The inner cavity of the placement mechanism 12 is provided with a clamping mechanism 13. The two sets of placement mechanisms 12 are connected in series through the series rod 2, and the two sets of holding mechanisms 11 are connected in series through the connecting rod 3.

[0041] The holding mechanism 11 includes a holding box 111 and an inner cavity 112 disposed inside the holding box 111. A connecting tube 113 is provided on the side end face of the holding box 111, and a connecting tube 114 is provided on the edge of the side end face of the holding box 111. The steering arm is placed into the inner cavity of the inner cavity 112, and an appropriate amount of acid water is poured into the inner cavity of the inner cavity 112. The steering arm is placed in the inner cavity of the inner cavity 112 for a certain period of time. The staff observes the steering arm placed in the inner cavity 112 from the outside and observes whether its surface will foam under the soaking of acid water.

[0042] Example 2

[0043] The placement mechanism 12 includes a placement frame 121 and arrangement baffles 122 arranged on the side end face of the placement frame 121. A positioning cylinder 123 is provided on one side of the inner cavity wall of the placement frame 121, and the side end face of the placement frame 121 is installed on one side of the connecting block 124.

[0044] The clamping mechanism 13 includes a first receiving ring 131 and a connecting plate 132 disposed on one side of the first receiving ring 131. A second receiving ring 133 is disposed at the other end of the connecting plate 132. A placement cylinder 134 is installed on the side end face of the second receiving ring 133. An inserting cylinder 135 is disposed through the inner cavity of the placement cylinder 134.

[0045] The clamping mechanism 13 also includes a series cylinder 136 and an assembly plate 137 disposed on one side of the series cylinder 136. A setting cylinder 138 is installed on the side end face of the assembly plate 137. The inner cavity of the setting cylinder 138 is inserted into the pressing mechanism 139. The positioning cylinder 123 is connected to the side end face of the setting cylinder 138. An air blowing device is connected to the inner cavity of the inner cavity 112 to introduce gas into the inner cavity 112. The gas is transported to the inner cavity of the placement cylinder 134 and the series cylinder 136 through the connecting cylinder 114 and the series cylinder 113, thereby testing the steering mechanism in the device under strong wind conditions.

[0046] Example 3

[0047] The insert cylinder 135 includes a cylinder body 1351 and a ring array of grinding balls 1352 arranged on the inner wall of the cylinder body 1351. A sleeve cylinder 1353 is provided in the middle of the cylinder body 1351. The steering gear is sleeved into the outer ring of the sleeve cylinder 1353. The outer end of the grinding ball 1352 contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball 1352, the grinding ball 1352 continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it has reached its expected durability fatigue, and clamp the connection of the steering gear.

[0048] Example 4

[0049] The pressing mechanism 139 includes a pressing plate 1391 and a pressure-bearing cylinder 1392 disposed on the side end face of the pressing plate 1391. A pressure-bearing ball 1393 is disposed at the other end of the pressure-bearing cylinder 1392. A through cavity 1394 is installed on the side end face of the pressure-bearing ball 1393. Both the pressure-bearing ball 1393 and the through cavity 1394 are disposed through the inner cavity of the setting cylinder 138. The other ends of the connecting cylinder 113 and the connecting cylinder 114 are disposed on the side end face of the connecting block 124. The inner cavities of the inner cavity 112, the connecting cylinder 113, and the connecting cylinder 114 are connected. The inner cavity of the connecting cylinder 136 communicates with the inner cavity of the connecting cylinder 114. The inner cavity of the second receiving ring 133 communicates with the inner cavity of the inserting cylinder 135. The steering knuckle is then inserted... The main bearing hole of the steering knuckle is placed inside the inner cavity of the setting cylinder 138 and laid on its bottom end face, so that the side end face of the main bearing hole is in contact with the outer surface of the pressure ball 1393. The operator presses the pressing plate 1391 from the outside to the inside. The pressing plate 1391 pushes the pressure cylinder 1392 inward, so that the pressure ball 1393 presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate 1391, under the pressure, sprays the gas pre-stored in its inner cavity through the through cavity 1394 to one side of the main bearing hole, spraying the main bearing hole, thereby simulating the use of the steering knuckle in a strong wind environment.

[0050] A test method for a clamping device in a collision test of an automotive steering mechanism includes the following steps:

[0051] S1: Insert the steering knuckle into the inner cavity of the setting cylinder 138. Place the main bearing hole of the steering knuckle into the inner cavity of the setting cylinder 138 and lay it on its bottom end face so that the side end face of the main bearing hole is in contact with the outer surface of the pressure ball 1393. The operator presses the pressing plate 1391 from the outside to the inside. The pressing plate 1391 pushes the pressure cylinder 1392 inward, so that the pressure ball 1393 presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate 1391 sprays the gas pre-stored in its inner cavity through the through cavity 1394 to one side of the main bearing hole under the pressure, spraying the main bearing hole to simulate the use of the steering knuckle in a strong wind environment.

[0052] S2: The steering gear is fitted into the outer ring of the sleeve 1353. The outer end of the grinding ball 1352 contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball 1352, the grinding ball 1352 continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it has reached its expected durability fatigue, and clamp the connection of the steering gear.

[0053] S3: An air blowing device is connected to the inner cavity of the built-in cavity 112 to introduce gas into the built-in cavity 112. The gas is transported to the inner cavity of the placement cylinder 134 and the series cylinder 136 through the connecting cylinder 114 and the series cylinder 113, thereby testing the steering mechanism in the device under strong wind conditions.

[0054] S4: Place the steering arm into the inner cavity of the built-in cavity 112, pour an appropriate amount of acid water into the inner cavity of the built-in cavity 112, and place the steering arm in the inner cavity of the built-in cavity 112 for a certain period of time. The staff observes the steering arm placed in the inner cavity 112 from the outside and observes whether its surface will foam under the soaking of acid water.

[0055] In summary: A clamping device for a collision test of an automotive steering mechanism includes a detection unit 1, a connecting rod 2, and a connecting rod 3. The detection unit 1 includes a holding mechanism 11 and a placement mechanism 12 disposed on one side of the holding mechanism 11. The inner cavity of the placement mechanism 12 is provided with a clamping mechanism 13. Two sets of placement mechanisms 12 are connected in series via the connecting rod 2, and two sets of holding mechanisms 11 are connected in series via the connecting rod 3. The steering knuckle is inserted into the inner cavity of the setting cylinder 138, and the main bearing hole of the steering knuckle is placed into the inner cavity of the setting cylinder 138 and laid on its bottom end face, so that... The side end face of the main bearing hole is in contact with the outer surface of the pressure ball 1393. The operator presses the pressing plate 1391 from the outside to the inside. The pressing plate 1391 pushes the pressure cylinder 1392 inward, causing the pressure ball 1393 to press the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate 1391 sprays the gas pre-stored in its inner cavity through the through cavity 1394 to one side of the main bearing hole under the pressure, thus spraying the main bearing hole to simulate the use of the steering knuckle in a strong wind environment.

[0056] The steering gear is fitted into the outer ring of the sleeve 1353. The outer end of the grinding ball 1352 contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball 1352, the grinding ball 1352 continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it has reached its expected durability fatigue, and clamp the connection of the steering gear.

[0057] An air blowing device is connected to the inner cavity of the built-in cavity 112 to introduce gas into the built-in cavity 112. The gas is then transported to the inner cavity of the placement cylinder 134 and the series cylinder 136 through the connecting cylinder 114 and the series cylinder 113, thereby enabling the steering mechanism in the device to be tested under strong wind conditions.

[0058] The steering arm is placed into the inner cavity of the built-in cavity 112. An appropriate amount of acid water is poured into the inner cavity of the built-in cavity 112. The steering arm is placed in the inner cavity of the built-in cavity 112 for a certain period of time. The staff observes the steering arm placed in the inner cavity 112 from the outside and observes whether its surface will foam under the soaking of acid water.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test method for a clamping device in a collision test of an automobile steering mechanism, characterized in that, The clamping device used in this test method includes a detection unit (1), a series rod (2) and a connecting rod (3). The detection unit (1) includes a holding mechanism (11) and a placement mechanism (12) disposed on one side of the holding mechanism (11). The inner cavity of the placement mechanism (12) is provided with a clamping mechanism (13). The two sets of placement mechanisms (12) are connected in series through the series rod (2), and the two sets of holding mechanisms (11) are connected in series through the connecting rod (3). The clamping mechanism (13) includes a first receiving ring (131) and a connecting plate (132) disposed on one side of the first receiving ring (131). A second receiving ring (133) is disposed at the other end of the connecting plate (132). A placement cylinder (134) is installed on the side end face of the second receiving ring (133). An insert cylinder (135) is disposed through the inner cavity of the placement cylinder (134). The placement mechanism (12) includes a placement frame (121) and arrangement bars (122) arranged on the side end face of the placement frame (121). A positioning cylinder (123) is provided on one side of the inner wall of the placement frame (121). The side end face of the placement frame (121) is installed on one side of the connecting block (124). The clamping mechanism (13) further includes a series cylinder (136) and an assembly plate (137) disposed on one side of the series cylinder (136). A setting cylinder (138) is installed on the side end face of the assembly plate (137). A pressing mechanism (139) is inserted into the inner cavity of the setting cylinder (138). The positioning cylinder (123) is connected to the side end face of the setting cylinder (138). The insert tube (135) includes a tube body (1351) and a grinding ball (1352) arranged in a ring array on the inner wall of the tube body (1351). A sleeve tube (1353) is provided in the middle of the tube body (1351). The pressing mechanism (139) includes a pressing plate (1391) and a pressure-bearing cylinder (1392) disposed on the side end face of the pressing plate (1391). The other end of the pressure-bearing cylinder (1392) has a pressure-bearing ball (1393). A through cavity (1394) is installed on the side end face of the pressure-bearing ball (1393). Both the pressure-bearing ball (1393) and the through cavity (1394) are disposed through the inner cavity of the setting cylinder (138). The experimental method includes the following steps: S1: Insert the steering knuckle into the inner cavity of the setting cylinder (138). Place the main bearing hole of the steering knuckle into the inner cavity of the setting cylinder (138) and lay it on its bottom end face so that the side end face of the main bearing hole is in contact with the outer surface of the pressure ball (1393). The operator presses the pressing plate (1391) from the outside to the inside. The pressing plate (1391) pushes the pressure cylinder (1392) inward, so that the pressure ball (1393) presses the side end face of the main bearing hole inward, thereby impacting and colliding the side end face of the main bearing hole. After the main bearing hole is impacted, the pressing plate (1391) sprays the gas pre-stored in its inner cavity through the through cavity (1394) to one side of the main bearing hole under the pressure, spraying the main bearing hole to simulate the use of the steering knuckle in a strong wind environment. S2: The steering gear is fitted into the outer ring of the sleeve (1353). The outer end of the grinding ball (1352) contacts the outer surface of the steering gear. After the outer surface of the steering gear contacts the grinding ball (1352), the grinding ball (1352) continuously impacts the outer surface of the steering gear during the movement or swing of the entire device. This can simulate the use effect of the steering gear under strong impact, determine whether it has reached its expected durability fatigue, and clamp the connection of the steering gear. S3: An air blowing device is connected to the inner cavity of the built-in cavity (112) to introduce gas into the built-in cavity (112). The gas is transported to the inner cavity of the placement cylinder (134) and the series cylinder (136) through the connecting cylinder (114) and the series cylinder (113) to test the steering mechanism in the device under strong wind conditions. S4: Place the steering arm into the inner cavity of the built-in cavity (112), pour an appropriate amount of acid water into the inner cavity of the built-in cavity (112), place the steering arm in the inner cavity of the built-in cavity (112) for a certain period of time, and observe from the outside whether the surface of the steering arm placed in the inner cavity (112) will produce a foaming phenomenon under the soaking of acid water.

2. The test method for a clamping device for a collision test of an automobile steering mechanism according to claim 1, characterized in that: The holding mechanism (11) includes a holding box (111) and an inner cavity (112) disposed in the inner cavity of the holding box (111). A connecting tube (113) is provided on the side end face of the holding box (111), and a connecting tube (114) is provided on the edge of the side end face of the holding box (111).

3. The test method for a clamping device for a collision test of an automobile steering mechanism according to claim 2, characterized in that: The other end of the connecting tube (113) and the connecting tube (114) is located on the side end face of the connecting block (124), and the inner cavity of the built-in cavity (112), the connecting tube (113) and the connecting tube (114) are connected through each other.

4. The test method for a clamping device for a collision test of an automobile steering mechanism according to claim 1, characterized in that: The inner cavity of the series tube (136) is connected to the inner cavity of the connecting tube (114), and the inner cavity of the second receiving ring (133) is connected to the inner cavity of the inserting tube (135).

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