Automobile part strength detection equipment
By simulating the complex state of the stabilizer bar link and the wear of the ball head through the simulation unit and the shaking mechanism, the problem of difficult accurate detection of existing equipment is solved, and higher test accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202511018711.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing automotive component strength testing equipment has difficulty simulating the rotational wear at the stabilizer bar connecting rod ball head, affecting the accuracy of fatigue strength testing.
A simulation unit and shaking mechanism are used to simulate the complex state of the stabilizer bar link in actual use, and reciprocating tapping with a rubber head can accurately simulate the wear of the ball head.
Improved the accuracy and reliability of stabilizer link fatigue durability testing, ensuring that test results are highly consistent with actual operating conditions.
Smart Images
Figure CN120801043A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of automobile part strength detection, and in particular to an automobile part strength detection device. BACKGROUND
[0002] The strength of automobile parts is a core indicator for ensuring vehicle safety, reliability and durability, and its strength detection needs to be targeted at the functional characteristics (such as bearing, transmission, protection, etc.) of different parts, and special equipment is used to simulate the stress environment under actual working conditions. Automobile part strength detection can be divided into static strength test, dynamic strength test, fatigue strength test, etc. The automobile stabilizer bar (also known as anti-roll bar, balance bar) is a core component in the suspension system for suppressing vehicle roll, which transmits lateral force through bending and torsional deformation, and bears alternating loads and instantaneous impact. Therefore, it has extremely high requirements for strength, stiffness and fatigue durability. The automobile stabilizer bar strength detection device is designed to simulate the actual stress working condition of the stabilizer bar and quantify its mechanical properties. The stabilizer bar mainly bears the combined action of bending load (vertical direction) and torsional load (around the axis direction) when the vehicle is turning and jolting. Its failure modes are mainly bar body fracture, end joint cracking or fatigue damage at the welding position. In addition, the automobile stabilizer bar is composed of a stabilizer bar bushing, a stabilizer bar link and a stabilizer bar support. At present, the automobile stabilizer bar link, as a key force transmission component connecting the stabilizer bar and the suspension, needs to bear the alternating load (such as repeated stretching / compression caused by turning roll and road jolting) during vehicle driving for a long time. Its fatigue strength directly affects the vehicle handling stability and safety. At present, the automobile part strength detection device, when detecting the fatigue strength of the automobile stabilizer bar link, is targeted at the stress condition of the stabilizer bar link in use, but it is difficult to simulate the rotational wear at the ball head of the stabilizer bar link, which affects the accuracy of the fatigue strength detection structure. Therefore, a kind of automobile part strength detection device is designed.
[0003] SUMMARY
[0004] In order to solve the above technical problems, the present application solves the problem that although the stress condition of the stabilizer bar link in use can be targeted, it is difficult to simulate the rotational wear at the ball head of the stabilizer bar link, which affects the accuracy of the detection result.
[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: An automobile part strength detection device, comprising a rack and a stabilizer bar link arranged on the rack, further comprising: a movable plate rotatably connected with the rack, and a simulation unit arranged on the movable plate, the simulation unit being used to simulate the actual use state of the stabilizer bar link; and a mounting member arranged on the rack, the mounting member being used to position the stabilizer bar link before testing, and a shaking mechanism arranged on the rack, the shaking mechanism being used to knock and vibrate the positioned stabilizer bar link.
[0006] Preferably, the simulation unit comprises: a driving shaft rotatably connected to the frame, at least two incomplete gears fixed on the driving shaft, an installation ring slidably connected to the frame, at least two racks a fixed on the installation ring, the racks a being in meshing connection with the incomplete gears, a driving motor fixed on the frame, the driving motor being in transmission connection with the driving shaft through a belt and a belt pulley, a driven shaft rotatably connected to the frame, at least two large gears fixed on the driven shaft, a toothed ring fixed on the movable plate and in meshing connection with the large gears, at least two small gears fixed on the driven shaft, and racks b fixed on the installation ring and in meshing connection with the small gears, and a positioning member provided on the frame and used for positioning the center position of the stabilizing rod connecting rod.
[0007] Preferably, the positioning member comprises: a support fixed on the frame, a supporting rod rotatably connected to the support, a recess formed in the supporting rod, a pressing rod rotatably connected to the recess through a rotating rod, and a gas cylinder fixed on the supporting rod and having an output end rotatably connected to one side of the pressing rod.
[0008] Preferably, the mounting member comprises: a guide groove fixed on the movable plate, a silk sleeve slidably connected to the guide groove, a supporting block fixed on the silk sleeve, a supporting seat fixed on the supporting block, a pressing ring rotatably connected to the supporting seat, a screw rod threadedly connected to the pressing ring, and a screw hole formed in the pressing ring and threadedly connected to the screw rod.
[0009] Preferably, a bearing seat is fixed on the movable plate, a lead screw is rotatably connected to the bearing seat, one end of the lead screw is fixed with a rotating wheel, and the silk sleeve is connected to the lead screw.
[0010] Preferably, the shaking mechanism comprises: an installation frame fixed on the supporting block, a connecting rod slidably penetrating through the installation frame, a rubber head fixed on one end of the connecting rod and abutting against the stabilizing rod connecting rod, a connecting ring fixed on the connecting rod, a spring sleeved on the connecting rod, one end of the spring being fixed with the connecting ring and the other end of the spring being fixed with the installation frame, a pulley fixed on one end of the connecting rod, a rotating shaft rotatably connected to the installation frame, a cam fixed on the rotating shaft and abutting against the pulley, a straight gear fixed on one end of the rotating shaft, a center rod rotatably connected to the frame, a toothed plate fixed on the center rod, a guide frame rotatably connected to the toothed plate through a rotating rod, the center rod being located inside the guide frame, and a tension spring hung between the rotating rod and the center rod.
[0011] Preferably, a support is fixed outside the frame, a guide rod is fixed on the support, and a guide sleeve is fixed on the installation ring and in slidable connection with the outer surface of the guide rod.
[0012] Preferably, the length value of the rack a is consistent with the length value of the rack b, and the center point of the rack is consistent with the rotation center of the movable plate.
[0013] Preferably, the movable plate is fixed with a loading frame, the frame is rotationally connected with a rod body, and the rod body and the loading frame are jointly hinged with an extension rod.
[0014] Preferably, the side adjacent to the supporting rod of the pressing rod is provided with a smooth circular arc surface.
[0015] Compared with the prior art, the present application has the following beneficial effects: The present application can highly realistically simulate various complex states of the stabilizer link in the actual use process, so as to more accurately and comprehensively evaluate the accuracy of the fatigue durability test structure of the automobile stabilizer link. In addition, the adjustment of the swing frequency is completely based on the rotational speed of the driving motor to dynamically adjust, so as to ensure that the simulation test conditions are highly consistent with the actual working conditions, and further improve the reliability and effectiveness of the test results.
[0016] The present application can precisely act on the end position of the stabilizer link by using the rubber head to continuously reciprocate and knock during the reciprocating swing state of the stabilizer link, which can effectively promote the ball head part of the stabilizer link to move during the swing, so as to more realistically and accurately simulate the wear state of the stabilizer link ball head in actual use. In this way, the accuracy and reliability of the stabilizer link fatigue durability test are improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 is a schematic view of the overall structure of the present application; Figure 2 is a schematic view of the front structure of the present application; Figure 1 is an enlarged schematic view of the A area structure in the middle; Figure 3 is a schematic view of the back structure of the present application; Figure 4 is a schematic view of the front structure of the present application; Figure 3 is an enlarged schematic view of the B area structure in the middle; Figure 5 is a schematic view of the structure at the mounting part of the present application; Figure 6 As Figure 5 The structure amplification diagram of the C area; Figure 7 The structure diagram of the shaking mechanism of the present application; Figure 8 As Figure 7 The structure amplification diagram of the D area; Figure 9 As Figure 7 The structure amplification diagram of the E area; Figure 10 The side structure diagram of the rack of the present application.
[0019] Figure number explanation: 1, rack; 2, stabilizing rod connecting rod; 3, movable plate; 4, simulation unit; 5, mounting piece; 6, shaking mechanism; 7, driving shaft; 8, incomplete gear; 9, mounting ring; 10, rack a; 11, driving motor; 12, pulley; 13, belt; 14, driven shaft; 15, large gear; 16, toothed ring; 17, pinion; 18, rack b; 19, positioning piece; 20, support; 21, support rod; 22, groove; 23, rotating rod; 24, pressing rod; 25, air cylinder; 26, guide groove; 27, wire sleeve; 28, support block; 29, support seat; 30, pressing ring; 31, screw rod; 32, screw hole; 33, bearing seat; 34, lead screw; 35, mounting bracket; 36, connecting rod; 37, rubber head; 38, connecting ring; 39, spring; 40, pulley; 41, rotating shaft; 42, cam; 43, spur gear; 44, center rod; 45, toothed plate; 46, rotating rod; 47, guide frame; 48, tension spring; 49, support; 50, guide rod; 51, guide sleeve; 52, loading bracket; 53, rod body; 54, telescopic rod. DETAILED DESCRIPTION
[0020] The present application will be further described in detail below with reference to the accompanying drawings.
[0021] The following description is provided to enable those skilled in the art to practice the present application. The preferred embodiments described below are only examples of the present application and the skilled in the art can think of other obvious variations. The basic principles defined in the following description can be used in other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.
[0022] Those skilled in the art should understand that in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position based on the orientation or position shown in the drawings, which is only for the convenience of the simplified description of the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.
[0023] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.
[0024] Embodiment 1: please refer to Figures 1-10 A kind of automobile component strength detection equipment, including frame 1 and the stabilizer bar connecting rod 2 arranged on frame 1, further include: with the movable plate 3 of rotation connection in frame 1, and the movable plate 3 is provided with simulation unit 4, by simulation unit 4 for simulating the state of stabilizer bar connecting rod 2 actual use time, and;Mounting piece 5 is arranged on frame 1, mounting piece 5 is used to position stabilizer bar connecting rod 2 before testing, and frame 1 is provided with shaking mechanism 6, by shaking mechanism 6 to knock vibration to the stabilizer bar connecting rod 2 after positioning; Wherein, the bottom surface of frame 1 is fixed with machine foot, forming the support effect of the stability of frame 1, in turn improve the stability of the fatigue durability test work of automobile parts; It should be noted that the connecting rod structure of stabilizer bar connecting rod 2 is composed of ball joint, rubber joint and bolt, the connecting rod main body of stabilizer bar connecting rod 2 is slender rigid rod, responsible for transmitting force and movement, and the connecting rod length of stabilizer bar connecting rod 2 needs to match the installation position and distance of stabilizer bar connecting rod 2 and suspension, which is a conventional setting in the art, so it will not be described in detail here. In the present scheme, when the fatigue durability test of automobile stabilizer bar connecting rod 2 is needed, first, the mounting piece 5 is used to position the connecting rod of stabilizer bar connecting rod 2, after the installation and positioning of the connecting rod of stabilizer bar connecting rod 2 are completed, the connecting rod of stabilizer bar connecting rod 2 is driven by simulation unit 4 to swing left and right reciprocatingly, simulating the use state of the connecting rod of automobile stabilizer bar connecting rod 2 under actual use condition, thereby the fatigue durability test of the connecting rod of stabilizer bar connecting rod 2 is carried out, in addition, the shaking mechanism 6 and the simulation unit 4 realize linkage, so that the ball head part of the connecting rod of stabilizer bar connecting rod 2 moves synchronously during simulation test, thereby further fitting the state of the connecting rod of stabilizer bar connecting rod 2 under actual use condition, effectively enhancing the accuracy of the test result of the connecting rod of stabilizer bar connecting rod 2.
[0025] Further, the mounting piece 5 comprises a guide groove 26 fixed on the movable plate 3, a sleeve 27 slidably connected in the guide groove 26, a supporting block 28 fixed on the sleeve 27, a supporting seat 29 fixed on the supporting block 28, a compression ring 30 rotatably connected on the supporting seat 29, a screw rod 31 threadedly connected on the compression ring 30, and a screw hole 32 threadedly connected with the screw rod 31 formed on the compression ring 30; Wherein, the movable plate 3 is fixed with a bearing seat 33, and the bearing seat 33 is rotatably connected with a lead screw 34, one end of the lead screw 34 is fixed with a rotating wheel, and the sleeve 27 is connected with the lead screw 34; Specifically, the lead screw 34 is located inside the guide groove 26, and the length of the lead screw 34 is greater than the length of the guide groove 26, the sleeve 27 slides in the guide groove 26, and the guide groove 26 provides a guide function for the sleeve 27 to ensure that the sleeve 27 moves along the guide groove 26 under stress; It should be noted that when the distance between the two mounting pieces 5 needs to be adjusted, the rotating wheel is rotated to synchronously rotate the lead screw 34, and the threaded transmission between the lead screw 34 and the sleeve 27 is utilized to drive the mounting piece 5 to translate until the position is adjusted to meet the length requirement of the stabilizing rod connecting rod 2; It should be further noted that when the stabilizing rod connecting rod 2 is installed on the supporting seat 29, the rubber joint on the stabilizing rod connecting rod 2 needs to be ensured to contact with the supporting seat 29, and after the compression ring 30 is turned and closed with the supporting seat 29, the stabilizing rod connecting rod 2 is tightened by using a nut; The principle of using the mounting piece 5 to install and position the stabilizing rod connecting rod 2 is as follows: first, rotate the rotating wheel to adjust the position of the mounting piece 5 to ensure that the distance meets the length requirement of the stabilizing rod connecting rod 2, place the stabilizing rod connecting rod 2 on the supporting seat 29, and turn the compression ring 30 until the compression ring 30 is attached to the supporting seat 29, then rotate the screw rod 31 to install and position the compression ring 30 and the supporting seat 29 together, and use the nut to stably install the stabilizing rod connecting rod 2 on the supporting seat 29.
[0026] Further, the simulation unit 4 comprises: a main shaft 7 rotatably connected to the rack 1, at least two incomplete gears 8 fixed on the main shaft 7, an installation ring 9 slidably connected to the rack 1, at least two racks a 10 fixed on the installation ring 9, the racks a 10 being in meshing connection with the incomplete gears 8, a driving motor 11 fixed on the rack 1, the driving motor 11 being in transmission connection with the main shaft 7 through a belt wheel 12 and a belt 13, a driven shaft 14 rotatably connected to the rack 1, at least two large gears 15 fixed on the driven shaft 14, a toothed ring 16 fixed on the movable plate 3 and in meshing connection with the large gears 15, at least two small gears 17 fixed on the driven shaft 14, and racks b 18 fixed on the installation ring 9 and in meshing connection with the small gears 17, the rack 1 is provided with a positioning piece 19 for positioning the central position of the stabilizer link 2, a support 49 is fixed outside the rack 1, a guide rod 50 is fixed on the support 49, and a guide sleeve 51 is fixed on the installation ring 9 and in sliding connection with the outer surface of the guide rod 50, the guide rod 50 and the guide sleeve 51 are added to guide the movement of the installation ring 9 and ensure that the installation ring 9 moves in a relatively stable state, a loading rack 52 is fixed on the movable plate 3, a rod body 53 is rotatably connected to the rack 1, and the rod body 53 and the loading rack 52 are jointly hinged with a telescopic rod 54, the addition of the telescopic rod 54 can provide certain support to the movable plate 3, thereby ensuring the relative stability of the movable plate 3 when it swings back and forth; The positioning piece 19 comprises: a support 20 fixed on the rack 1, a support rod 21 rotatably connected to the support 20, a recess 22 formed in the support rod 21, a pressing rod 24 rotatably connected to the recess 22 through a rotating rod 23, a gas cylinder 25 fixed on the support rod 21, the output end of the gas cylinder 25 being rotatably connected to one side of the pressing rod 24, the length of the rack a 10 being consistent with the length of the rack b 18, the center point of the toothed ring 16 and the rotation center of the movable plate 3 being located at the same center point, and the side of the pressing rod 24 adjacent to the support rod 21 being provided with a smooth circular arc surface; It should be noted that the simulation unit 4 can highly realistically simulate various complex states of the stabilizer link 2 in the actual use process, thereby more accurately and comprehensively evaluating the accuracy of the fatigue durability test structure of the automobile stabilizer link 2, and the adjustment of the swing frequency is completely based on the rotation speed of the driving motor 11 to dynamically adjust, ensuring that the simulation test conditions are highly consistent with the actual working conditions, and further improving the reliability and effectiveness of the test results; It should be further noted that when the stabilizer link 2 is tested, the middle position of the stabilizer link 2 is kept consistent with the positioning piece 19 as much as possible, the stabilizer link 2 is clamped and positioned by the positioning piece 19, and moves synchronously with the stabilizer link 2; In the scheme, the simulation unit 4 is used to simulate the actual use state principle of the stabilizer link 2: through the driving of the driving motor 11, the transmission of the pulley 12 and the belt 13 is used to make the driving shaft 7 rotate synchronously, drive the incomplete gear 8 to rotate synchronously, use the meshing transmission between the incomplete gear 8 and the two racks a10 on the mounting ring 9 to drive the mounting ring 9 to move up and down reciprocatingly, and use the meshing transmission between the rack b18 and the pinion 17 to make the driven shaft 14 rotate reciprocatingly, drive the large gear 15 to rotate synchronously, use the meshing transmission between the large gear 15 and the toothed ring 16 to drive the movable plate 3 to swing reciprocatingly along the center point, and then drive the stabilizer link 2 to move synchronously, and in addition; The positioning principle of the positioning member 19 for the stabilizer link 2 is as follows: the stabilizer link 2 is placed on the support rod 21, the pressure rod 24 is forced to turn over along the axis of the rotating rod 23 through the driving of the air cylinder 25, so that the stabilizer link 2 is pressed tightly on the support rod 21 by the pressure plate, thereby completing the pressing and positioning of the stabilizer link 2. When the stabilizer link 2 swings reciprocatingly, the support rod 21, the pressure rod 24 and the air cylinder 25 swing synchronously with the stabilizer link 2.
[0027] The fatigue strength test process of the stabilizer link 2 in the scheme includes the following steps: Firstly, the stabilizer link 2 is placed on the support rod 21, the stabilizer link 2 is pressed and positioned by the positioning member 19, and the ball joint at the two ends of the stabilizer link 2 is installed and positioned by the mounting member 5; Secondly, the simulation unit 4 is used to drive the stabilizer link 2 to swing reciprocatingly, and the shaking mechanism 6 is connected to simulate the wear state of the ball head of the stabilizer link 2; Thirdly, whether cracks are generated on the surface of the rod body 53 is observed periodically, which usually occurs in the stress concentration area such as the welded joint, the thread root and the fillet transition, and the initial stage may be manifested as fine white stripes or depressions, and whether the connecting members such as the ball head and the rubber bushing are abnormally deformed is checked.
[0028] Example 2: please refer to Figure 2 、 Figures 7-10 The embodiment further illustrates example one, and the difference is that the wear of the simulated ball head is considered when the stabilizer link 2 swings.
[0029] Specifically, the shaking mechanism 6 comprises: a support block 28 is fixed with a mounting frame 35, the mounting frame 35 is slidably penetrated with a connecting rod 36, one end of the connecting rod 36 is fixed with a rubber head 37 abutting against the stabilizer bar connecting rod 2, the connecting rod 36 is fixed with a connecting ring 38, the connecting rod 36 is sleeved with a spring 39, one end of the spring 39 is fixed with the connecting ring 38, the other end of the spring 39 is fixed with the mounting frame 35, one end of the connecting rod 36 is fixed with a pulley 40, the mounting frame 35 is rotatably connected with a rotating shaft 41, the rotating shaft 41 is fixed with a cam 42 abutting against the pulley 40, one end of the rotating shaft 41 is fixed with a straight gear 43, the frame 1 is rotatably connected with a center rod 44, the center rod 44 is fixed with a toothed plate 45, the toothed plate 45 is rotatably connected with a guide frame 47 through a rotating rod 46, the center rod 44 is located inside the guide frame 47, the rotating rod 46 and the center rod 44 are hung with a tension spring 48; Wherein, when the position of the support seat 29 is adjusted by rotating the rotating wheel, the support block 28 and the mounting frame 35 are driven to move synchronously, and the elastic action of the tension spring 48 can ensure that the toothed plate 45 and the straight gear 43 are always in meshing state; It should be noted that, by the setting of the shaking mechanism 6, the rubber head 37 can continuously perform reciprocating knocking action on the end position of the stabilizer bar connecting rod 2 connecting rod in the process of reciprocating swing, which can accurately act on the end position of the stabilizer bar connecting rod 2 connecting rod, and the knocking mode can effectively promote the ball head part of the stabilizer bar connecting rod 2 connecting rod to move in the swing process, so as to more truly and accurately simulate the wear state of the ball head of the stabilizer bar connecting rod 2 connecting rod in actual use, which can improve the accuracy and reliability of the fatigue durability test of the stabilizer bar connecting rod 2 connecting rod; In the scheme, the principle of simulating the wear durability of the ball head of the stabilizer bar connecting rod 2 connecting rod is that: when the movable plate 3 swings reciprocatingly, the mounting frame 35 swings synchronously, and the meshing transmission action between the straight gear 43 and the toothed plate 45 drives the rotating shaft 41 to rotate synchronously, the cam 42 rotates synchronously, and the extrusion transmission action between the cam 42 and the pulley 40 drives the connecting rod 36 and the rubber head 37 to move reciprocatingly, the rubber head 37 knocks and vibrates the one end of the stabilizer bar connecting rod 2 connecting rod, and then the wear state of the ball head of the stabilizer bar connecting rod 2 connecting rod can be simulated.
[0030] Those skilled in the art will understand that the embodiments of the application shown in the above description and the accompanying drawings are only examples and do not limit the application. The purpose of the application has been completely and effectively achieved. The function and structural principle of the application have been shown and described in the embodiments, and the embodiments of the application can be modified or changed without departing from the principle.
Claims
1. An automobile component strength testing device, comprising a frame (1) and a stabilizer link (2) arranged on the frame (1); It is characterized by: Also includes: a movable plate (3) rotatably connected to the frame (1), and a simulation unit (4) is provided on the movable plate (3), and the simulation unit (4) is used to simulate the state of the stabilizer link (2) when it is actually used, and; A mounting member (5) is provided on the frame (1), the mounting member (5) being used for positioning the front of the test stabilizer link (2), and a shaking mechanism (6) is provided on the frame (1), and the positioned stabilizer link (2) is knocked and vibrated by the shaking mechanism (6).
2. The automobile component strength testing device according to claim 1, characterized in that: The simulation unit (4) comprises: a driving shaft (7) rotatably connected to the frame (1), at least two incomplete gears (8) fixed to the driving shaft (7), a mounting ring (9) slidably connected to the frame (1), at least two racks a (10) fixed to the mounting ring (9), the racks a (10) meshingly connected to the incomplete gears (8), a driving motor (11) fixed to the frame (1), and a transmission connection between the driving motor (11) and the driving shaft (7) via a pulley (12) and a belt (13). The frame (1) is rotatably connected to a driven shaft (14), at least two large gears (15) are fixed to the driven shaft (14), a toothed ring (16) meshing with the large gear (15) is fixed to the movable plate (3), at least two small gears (17) are fixed to the driven shaft (14), and a rack b (18) meshing with the small gear (17) is fixed to the mounting ring (9), and a positioning member (19) is provided on the frame (1), and the positioning member (19) is used to position the center position of the stabilizer link (2).
3. The automobile component strength testing device according to claim 2, characterized in that: The positioning member (19) comprises: a bracket (20) fixed on the frame (1); a support rod (21) is rotatably connected to the bracket (20); a groove (22) is provided on the support rod (21); and a pressure rod (24) is rotatably connected to the groove (22) via a rotating rod (23); a cylinder (25) is fixed on the support rod (21), and an output end of the cylinder (25) is rotatably connected to one side of the pressure rod (24).
4. The automobile component strength testing device according to claim 3, characterized in that: The mounting member (5) comprises: a guide groove (26) fixed on the movable plate (3), and a threaded sleeve (27) slidably connected in the guide groove (26), a support block (28) fixed on the threaded sleeve (27), and a support seat (29) fixed on the support block (28), a pressure ring (30) rotatably connected to the support seat (29), a screw rod (31) threadedly connected to the pressure ring (30), and a screw hole (32) threadedly connected to the screw rod (31) is provided on the pressure ring (30).
5. The automobile component strength testing device according to claim 4, characterized in that: A bearing seat (33) is fixed on the movable plate (3), and a screw rod (34) is rotatably connected to the bearing seat (33). A rotating wheel is fixed to one end of the screw rod (34), and the wire sleeve (27) is connected to the screw rod (34).
6. The automobile component strength testing device according to claim 5, characterized in that: The shaking mechanism (6) includes: a mounting frame (35) fixed on the support block (28), a connecting rod (36) slidingly passing through the mounting frame (35), a rubber head (37) abutting against the stabilizing rod link (2) fixed to one end of the connecting rod (36), a connecting ring (38) fixed to the connecting rod (36), a spring (39) sleeved on the connecting rod (36), one end of the spring (39) fixed to the connecting ring (38), the other end of the spring (39) fixed to the mounting frame (35), and a pulley (4) fixed to one end of the connecting rod (36). 0), and a rotating shaft (41) is rotatably connected to the mounting frame (35), a cam (42) abutting against the pulley (40) is fixed on the rotating shaft (41), a spur gear (43) is fixed to one end of the rotating shaft (41), a center rod (44) is rotatably connected to the frame (1), and a toothed plate (45) is fixed on the center rod (44), a guide frame (47) is rotatably connected to the toothed plate (45) via a rotating rod (46), the center rod (44) is located inside the guide frame (47), and a tension spring (48) is connected between the rotating rod (46) and the center rod (44).
7. The automobile component strength testing device according to claim 6, characterized in that: A support (49) is fixed outside the frame (1), a guide rod (50) is fixed on the support (49), and a guide sleeve (51) slidably connected to the outer surface of the guide rod (50) is fixed on the mounting ring (9).
8. The automobile component strength testing device according to claim 7, characterized in that: The length of the rack a (10) is consistent with the length of the rack b (18), and the center point of the toothed ring (16) and the rotation center of the movable plate (3) are located at the same center point.
9. The automobile component strength testing device according to claim 8, characterized in that: A loading frame (52) is fixed on the movable plate (3), a rod body (53) is rotatably connected to the frame (1), and a telescopic rod (54) is hingedly connected between the rod body (53) and the loading frame (52).
10. The automobile component strength testing device according to claim 9, characterized in that: The side of the pressure rod (24) adjacent to the support rod (21) is provided with a smooth arc surface.