Universal automobile mechanical steering gear assembly detection equipment

Abstract

The invention relates to the technical field of mechanical steering gear assembly testing, in particular to universal automobile mechanical steering gear assembly detection equipment which comprises a steering gear assembly and a detection unit, the detection unit comprises a mounting base, a fixing assembly is mounted on the top side of the mounting base, a positioning assembly is mounted on the outer wall of the mounting base, and the steering gear assembly is mounted on the positioning assembly. A positioning assembly is installed on the top of the mounting base, a driving assembly is installed on the top of the mounting base, a vibration testing assembly is installed on the top of the mounting base, a bending injection molding assembly and a bending pushing assembly installed on the positioning assembly are installed on the inner wall of the mounting base, and vibration and pressure testing of the steering gear assembly can be completed at the same time through rotation of a driving motor. The device can simulate an environment in which a tie rod of a steering gear assembly is stressed when an automobile vibrates when the automobile is ignited, so that the steering gear assembly is tested more truly and reliably.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical steering gear testing, and in particular to a universal automobile mechanical steering gear assembly testing device. Background Art

[0002] The mechanical steering gear assembly is a part of the automobile power steering system, which is used to convert the mechanical energy output by the engine into pressure energy and apply hydraulic or pneumatic force under the control of the driver to assist steering. After the steering gear assembly is produced and assembled, a series of tests are required to ensure that the mechanical steering gear can be used normally; However, the existing mechanical steering gear assembly cannot perform pressure test and vibration test on the tie rod at the same time, so that the testing equipment cannot simulate the environment during actual use, making the testing insufficient. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above-mentioned problem of insufficient detection of the steering gear assembly, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a universal automobile mechanical steering gear assembly detection device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a universal automobile mechanical steering gear assembly detection device, comprising a steering gear assembly and a detection unit, wherein the detection unit comprises a mounting base, a fixing component is mounted on the top side of the mounting base, a positioning component is mounted on the outer wall of the mounting base, a driving component is mounted on the top of the mounting base, a vibration test component is mounted on the top of the mounting base, a bending injection component is mounted on the inner wall of the mounting base, a bending pushing component mounted on the positioning component, and a feedback component mounted on the mounting base; The vibration test assembly comprises two groups of elliptical blocks mounted on the driving assembly, a support plate is mounted on the top of the mounting base, a maintaining spring is mounted on the top of the supporting plate, a connecting plate is mounted on the top of the maintaining spring, a telescopic rod is mounted on the top of the mounting base, and a vibration plate is mounted on the top of the telescopic rod; The bending injection molding assembly includes a pressure plate installed on the top side of a mounting base, a transmission member installed on the bottom side of the pressure plate, the transmission member is transmission-connected to a piston member, two groups of one-way outflow members are installed on the outer wall of the piston member, a one-way inflow member is installed on the outer wall of the piston member, and a flow pipe installed on the one-way outflow member.

[0007] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the fixed component includes four groups of pillars installed on a mounting base, and each two groups of the pillars are jointly installed with a group of redundant plates. When the steering gear assembly contacts the redundant plate through a spacer, a large gap is retained between the inner bottom wall of the redundant plate and the bottom side of the steering gear assembly.

[0008] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the positioning component includes an extension frame installed on the outer wall of the mounting base, a bent fixing rod is installed on the top of the extension frame, and a positioning block is installed on the top side of the bent fixing rod. The positioning component is provided with two groups, which are respectively installed on opposite sides of the mounting base.

[0009] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the driving component includes a driving motor installed on the top of the mounting base, and an output shaft is installed at the output end of the driving motor, and the output shaft is connected to two groups of elliptical blocks.

[0010] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the outer walls of one side of the two groups of elliptical blocks are both provided with inclined surfaces, the inclined surfaces are fitted with the bottom of the vibration plate, the connecting plate is connected to the outer wall of the vibration plate, and the maintaining spring applies tension to the connecting plate.

[0011] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the transmission part includes a toothed plate installed on the bottom side of the pressure plate, and the inner wall of the mounting base is installed with a small gear and a large gear that mesh with each other, and the piston part is provided with an engaging groove, the toothed plate meshes with the small gear, and the engaging groove meshes with the large gear.

[0012] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the piston member includes a piston cavity installed on the inner wall of the mounting base, a piston block is installed on the inner wall of the piston cavity, a piston rod is installed on the top of the piston block, a restoring spring is installed on the top of the piston block, and the top of the restoring spring is connected to the inner top wall of the piston cavity.

[0013] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the one-way outflow component includes a tube body installed on the outer wall of the piston cavity, a compression spring is installed on the inner wall of the tube body, a sealing plug is installed on one end of the compression spring, an air outlet is opened inside the tube body, and the compression spring tightly fits the sealing plug on the air outlet.

[0014] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the bending vibration component includes an inclined column installed on an extension frame, a sealing plate is installed on the inner wall of the inclined column, a pull rod is installed on the outer wall of the sealing plate, a limit block is installed on the outer wall of the pull rod, and a pushing arc plate is installed on the pull rod.

[0015] As a preferred solution of the universal automobile mechanical steering gear assembly detection equipment described in the present invention, the feedback component includes a support block installed on the outer wall of the extension frame, a pressure relief valve installed inside the mounting base, an extension column is installed on the top of the valve cover of the pressure relief valve, a movable connecting rod is installed on the top of the extension column through a pin shaft, a supporting frame is installed on the top of the mounting base, a pressing column is installed through the interior of the supporting frame, and an on-off switch is installed on the outer wall of the mounting plate.

[0016] The beneficial effects of the present invention are as follows: the present invention can simultaneously complete the vibration and pressure tests on the steering gear assembly by driving the rotation of the motor, and can simulate the environment in which the steering gear assembly is subjected to pressure while the vehicle vibrates when the vehicle is ignited, thereby making the steering gear assembly test more realistic and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 The figure is an overall schematic diagram of a universal automobile mechanical steering gear assembly testing device.

[0019] Figure 2 The present invention is a schematic diagram of a detection unit of a universal automobile mechanical steering gear assembly detection device.

[0020] Figure 3 for Figure 2 Enlarged view of point A in .

[0021] Figure 4 The present invention is a schematic diagram of a bending injection molding component of a universal automobile mechanical steering gear assembly testing device.

[0022] Figure 5 for Figure 4 Enlarged view of point B in .

[0023] Figure 6 The present invention is a schematic diagram of a piston chamber of a universal automobile mechanical steering gear assembly testing device.

[0024] Figure 7 The present invention is a schematic diagram of a one-way outflow component of a universal automobile mechanical steering gear assembly testing device.

[0025] Figure 8 The present invention is a schematic diagram of a vibration test component of a universal automobile mechanical steering gear assembly testing device.

[0026] Figure Number: 100, steering gear assembly; 200, detection unit; 201, mounting base; 202, fixing assembly; 202a, pillar; 202b, redundant board; 203, positioning assembly; 203a, extension frame; 203b, bent fixing rod; 203c, positioning block; 204, driving assembly; 204a, driving motor; 204b, output shaft; 205, vibration test assembly; 205a, elliptical block; 205b, support plate; 205c, maintaining spring; 205d, connecting plate; 205e, telescopic rod; 205f, vibration plate; 206, bending injection assembly; 206a, pressing plate; 206b, transmission member; 206b-1, tooth plate; 206b-2, small gear; 206b-3, large gear; 206b-4, meshing groove; 2 06c, piston member; 206c-1, piston chamber; 206c-2, piston block; 206c-3, piston rod; 206c-4, return spring; 206d, one-way outflow member; 206d-1, tube body; 206d-2, compression spring; 206d-3, sealing plug; 206d-4, air outlet; 206e, one-way inflow member; 206f, flow tube; 207, bending push assembly; 207a, tilting column; 207b, sealing plate; 207c, pull rod; 207d, limit block; 207e, push arc plate; 208, feedback assembly; 208a, stop block; 208b, pressure relief valve; 208c, extension column; 208d, movable connecting rod; 208e, support frame; 208f, pressing column; 208g, opening and closing switch; DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example

[0031] Reference Figure 1-Figure 2 , which is the first embodiment of the present invention, and provides a universal automobile mechanical steering gear assembly 100 detection device, including a steering gear assembly 100 and a detection unit 200, wherein the detection unit 200 includes a mounting base 201, and a fixing component 202 is installed on the top side of the mounting base 201, and the fixing component 202 is used to fix the power cylinder of the steering gear assembly 100, and a positioning component 203 is installed on the outer wall of the mounting base 201, and the positioning component 203 is buckled on the ball head of the tie rod 207c, thereby completing the fixation of the steering gear assembly 100.

[0032] Specifically, the fixing assembly 202 includes four groups of pillars 202a installed on the mounting base 201, and each two groups of pillars 202a are jointly installed with a group of redundant plates 202b. The mounting holes of the steering gear assembly 100 penetrate into the pillars 202a. When the steering gear assembly 100 contacts the redundant plates 202b through the spacers, a large gap is retained between the inner bottom wall of the redundant plates 202b and the bottom side of the steering gear assembly 100.

[0033] Furthermore, the positioning assembly 203 includes an extension frame 203a installed on the outer wall of the mounting base 201, a bent fixing rod 203b is installed on the top of the extension frame 203a, and a positioning block 203c is installed on the top side of the bent fixing rod 203b. The positioning assembly 203 is provided with two groups, which are respectively installed on opposite sides of the mounting base 201, and the two groups of positioning blocks 203c are respectively connected to the two groups of ball heads of the transverse tie rods 207c, so that the transverse tie rods are also fixed and cannot be bent.

[0034] Operation process: When testing, first penetrate the installation hole of the steering gear assembly 100 into the pillar 202a, so that the power cylinder of the steering gear assembly 100 is fixed on the top side of the redundant plate 202b, and then embed the ball head of the tie rod 207c into the positioning block 203c, so that the tie rod 207c is fixed and cannot be bent. At this time, the steering gear assembly 100 can be tested. Example

[0035] Reference Figure 2 , Figure 3 and Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a driving assembly 204 is installed on the top of the mounting base 201, and a vibration test assembly 205 is installed on the top of the mounting base 201.

[0036] Specifically, the driving assembly 204 includes a driving motor 204a installed on the top of the mounting base 201, and an output shaft 204b is installed at the output end of the driving motor 204a. The output shaft 204b is connected to the two groups of elliptical blocks 205a. The rotation of the driving motor 204a drives the output shaft 204b to rotate, and the rotation of the output shaft 204b can drive the elliptical block 205a to rotate.

[0037] Furthermore, the vibration test assembly 205 includes two groups of elliptical blocks 205a installed on the driving assembly 204, a support plate 205b is installed on the top of the mounting base 201, a retaining spring 205c is installed on the top of the retaining spring 205c, a connecting plate 205d is installed on the top of the mounting base 201, a telescopic rod 205e is installed on the top of the mounting base 201, and a vibration plate 205f is installed on the top of the telescopic rod 205e; the outer walls of one side of the two groups of elliptical blocks 205a are provided with inclined surfaces, and the inclined surfaces and the vibration plate 205f are connected to each other. The bottom is fitted, the connecting plate 205d is connected to the outer wall of the vibration plate 205f, the elliptical block 205a rotates to press the vibration plate 205f and the maintaining spring 205c applies tension to the connecting plate 205d on the vibration plate 205f, so that the vibration plate 205f cyclically and rapidly hits the vibration cylinder, and the steering gear assembly 100 is in contact with the redundant plate 202b through the spacer, so that the steering gear assembly 100 can vibrate to a certain amplitude, thereby simulating the environment after the car is ignited, and completing the vibration test of the connection strength of the steering gear assembly 100.

[0038] The rest of the structure is the same as that of Example 1.

[0039] Operation process: The driving motor 204a rotates to drive the output shaft 204b to rotate. The rotation of the output shaft 204b can drive the elliptical block 205a to rotate. The elliptical block 205a rotates to contact the vibration plate 205f and the maintaining spring 205c applies tension to the connecting plate 205d on the vibration plate 205f, so that the vibration plate 205f cyclically and rapidly hits the vibration cylinder, and its steering gear assembly 100 contacts the redundant plate 202b through the spacer, so that the steering gear assembly 100 can vibrate to a certain amplitude, thereby simulating the environment after the car is ignited, and effectively testing the connection strength of its steering gear assembly 100. Example

[0040] Reference Figure 2-Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the above embodiments in that: the detection unit 200 also includes a bending injection-pressing component 206 installed on the inner wall of the mounting base 201, and the bending injection-pressing component 206 can cyclically inject and press the bending pushing component 207 installed on the positioning component 203, so that the bending pushing component 207 continuously increases the pressure applied to the transverse rod 207c.

[0041] Specifically, the bending injection and pressing assembly 206 includes a pressure plate 206a installed on the top side of the mounting base 201, and the pressure plate 206a is located at the bottom of the elliptical block 205a. The rotation of the elliptical block 205a can trigger the pressure plate 206a to move back and forth. The pressure plate 206a drives the transmission member 206b on the bottom side to transmit, and the transmission member 206b drives the piston member 206c to move. The movement of the piston member 206c causes two sets of one-way outflow members 206d installed on the outer wall to inject gas into the bending pushing assembly 207. The one-way inflow member 206e installed on the outer wall of the piston member 206c is used to re-inject external gas into the piston member 206c, and the flow pipe 206f of the one-way outflow member 206d is used to connect the one-way outflow member 206d with the bending pushing assembly 207.

[0042] Furthermore, the transmission member 206b includes a toothed plate 206b-1 mounted on the bottom side of the pressure plate 206a, a small gear 206b-2 and a large gear 206b-3 meshing with each other are mounted on the inner wall of the mounting base 201, a meshing groove 206b-4 is provided on the piston member 206c, the toothed plate 206b-1 meshes with the small gear 206b-2, the meshing groove 206b-4 meshes with the large gear 206b-3, and the pressure plate 206a moves downward with the belt The movable small gear 206b-2 rotates, and the small gear 206b-2 rotates to drive the large gear 206b-3 to rotate, and the large gear 206b-3 drives the piston rod 206c-3 to move downward. Because the piston rod 206c-3 encounters a large resistance when moving downward, the small gear 206b-2 drives the large gear 206b-3 to effectively reduce the force required for the pressure plate 206a to move downward, so that the elliptical block 205a can drive the pressure plate 206a to move.

[0043] Furthermore, the piston member 206c includes a piston chamber 206c-1 installed on the inner wall of the mounting base 201, a piston block 206c-2 is installed on the inner wall of the piston chamber 206c-1, a piston rod 206c-3 is installed on the top of the piston block 206c-2, a return spring 206c-4 is installed on the top of the piston block 206c-2, and the top of the return spring 206c-4 is connected to the inner top wall of the piston chamber 206c-1. When the piston block 206c-2 moves down to the lowest point and the elliptical block 205a continues to rotate, its return spring 206c-4 pulls the piston block 206c-2 toward the top side, so that the piston member 206c can move reciprocatingly.

[0044] Furthermore, the one-way outflow member 206d includes a tube body 206d-1 installed on the outer wall of the piston chamber 206c-1, a compression spring 206d-2 is installed on the inner wall of the tube body 206d-1, a sealing plug 206d-3 is installed on one end of the compression spring 206d-2, an air outlet 206d-4 is opened inside the tube body 206d-1, and the compression spring 206d-2 tightly fits the sealing plug 206d-3 on the air outlet 206d-4, so that the piston block 206c- When the piston 206c-1 moves downward, the gas in the piston chamber 206c-1 can trigger the sealing plug 206d-3, so that the gas in the piston chamber 206c-1 enters the bending push component 207 through the flow tube 206f, and the compression spring 206d-2 prevents the gas entering therein from flowing back, so that the bending push component 207 can be continuously injected and pressed to move, and the internal structure of the one-way inflow component 206e is exactly opposite to the one-way outflow component 206d, so that the gas injection of the piston component 206c can be circulated.

[0045] Furthermore, the bending vibration assembly includes an inclined column 207a mounted on the extension frame 203a, a sealing plate 207b is mounted on the inner wall of the inclined column 207a, a pull rod 207c is mounted on the outer wall of the sealing plate 207b, and a limit block 207d is mounted on the outer wall of the pull rod 207c. The limit block 207d allows the sealing plate 207b to move only longitudinally in the inclined column 207a, but not to rotate, so that the sealing plate 207b will not be damaged by rotation. In order to improve the air tightness, a pushing arc plate 207e is installed at one end of the pull rod 207c, and one end of the pushing arc plate 207e contacts the outer wall of the transverse tie rod 207c. The flow pipe 206f injects gas into the inclined column 207a, so that the pressure inside the inclined column 207a gradually increases, so that the sealing plate 207b moves to drive the pull rod 207c to move, and the movement of the pull rod 207c drives the pushing arc plate 207e to move, so that the pushing arc plate 207e can apply pressure to the transverse tie rod 207c.

[0046] Further, a feedback assembly 208 is installed inside the mounting base 201, and the feedback assembly 208 includes a support block 208a installed on the outer wall of the extension frame 203a, a pressure relief valve 208b installed inside the mounting base 201, an extension column 208c is installed on the top of the valve cover of the pressure relief valve 208b, and a movable connecting rod 208d is installed on the top of the extension column 208c through a pin shaft, and a support frame 208e is installed on the top of the mounting base 201, and a pressing column is installed through the inside of the support frame 208e. 208f, and an on-off switch 208g installed on the outer wall of the mounting plate 205b, the on-off switch 208g is connected to the drive motor 204a to control the start and stop of the drive motor 204a, the pressure relief valve 208b is connected to the flow pipe 206f through the pipe body, when the air pressure of the tilting column 207a reaches the set air pressure of the pressure relief valve 208b, the pressure relief valve 208b starts the pressure relief action, so that the pressure of the pull rod 207c in the tilting column 207 and the push arc plate 207e on the transverse pull rod does not exceed the measured value.

[0047] The rest of the structure is the same as that of Example 2.

[0048] Operation process: the rotation of the elliptical block 205a drives the pressure plate 206a to move, and the movement of the pressure plate 206a drives the piston rod 206c-3 to move up and down. When the piston block 206c-2 moves downward, the gas in its piston chamber 206c-1 is injected into the inclined cylinder 207a, and the inclined cylinder 207a gradually becomes high pressure, so that the sealing plate 207b moves to drive the pull rod 207c to move, and the pull rod 207c moves to drive the push arc plate 207e to move, so that the push arc plate 207e can apply pressure to the horizontal tie rod. When the piston block 206c-2 moves upward, the one-way outflow piece 206d is closed, and the one-way inflow piece 206e is opened, so that the piston chamber 206c-1 is re-injected with gas, and this cycle is used to circulate the gas injected into the inclined cylinder 207a, so that the pressure of the horizontal tie rod 207c gradually increases, and its pressure relief valve 208b passes through the pipe body 206d- 1 is connected to the flow pipe 206f, and the pressure relief standard of the pressure relief valve 208b is set according to the threshold value of the test pressure of the tie rod 207c, that is, when the pressure applied by the tie rod 207c reaches the measured value, the pressure relief valve 208b releases pressure, and when the valve cover of the pressure relief valve 208b moves up to release pressure, the extension column 208c moves to drive the movable connecting rod 208d to move, and the movable connecting rod 208d moves to drive the pressing column 208f to move on the supporting frame 208e, so that the pressing column 208f presses on the closing button of the opening and closing switch 208g, so that the driving motor 204a stops rotating, so that the test pressure applied by the air pressure in the inclined column 207a to the tie rod 207c is maintained at the measured value, and the staff can observe the state of the tie rod 207c at this time. If the tie rod 207c does not contact the abutting block 208a, the compressive strength of the tie rod 207c is qualified.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A universal automobile mechanical steering gear assembly (100) detection device, characterized in that: include, A steering gear assembly (100) and a detection unit (200), wherein the detection unit (200) comprises a mounting base (201), a fixing component (202) being mounted on the top side of the mounting base (201), a positioning component (203) being mounted on the outer wall of the mounting base (201), a driving component (204) being mounted on the top of the mounting base (201), a vibration test component (205) being mounted on the top of the mounting base (201), a bending injection molding component (206) being mounted on the inner wall of the mounting base (201), a bending pushing component (207) being mounted on the positioning component (203), and a feedback component (208) being mounted on the mounting base (201); The vibration test assembly (205) comprises two groups of elliptical blocks (205a) mounted on the driving assembly (204); a support plate (205b) is mounted on the top of the mounting base (201); a retaining spring (205c) is mounted on the top of the support plate (205b); a connecting plate (205d) is mounted on the top of the retaining spring (205c); a telescopic rod (205e) is mounted on the top of the mounting base (201); and a vibration plate (205f) is mounted on the top of the telescopic rod (205e); The bending injection molding assembly (206) comprises a pressure plate (206a) mounted on the top side of a mounting base (201), a transmission member (206b) mounted on the bottom side of the pressure plate (206a), the transmission member (206b) being transmission-connected to a piston member (206c), two groups of one-way outflow members (206d) mounted on the outer wall of the piston member (206c), a one-way inflow member (206e) mounted on the outer wall of the piston member (206c), and a flow tube (206f) mounted on the one-way outflow member (206d).

2. The universal automobile mechanical steering gear assembly testing device according to claim 1, characterized in that: The fixing assembly (202) comprises four groups of pillars (202a) mounted on a mounting base (201), and each two groups of the pillars (202a) are jointly mounted with a group of redundant plates (202b). When the steering gear assembly (100) and the redundant plates (202b) are in contact via a spacer, a relatively large gap is retained between the inner bottom wall of the redundant plates (202b) and the bottom side of the steering gear assembly (100).

3. The universal automobile mechanical steering gear assembly testing device as claimed in claim 2, characterized in that: The positioning assembly (203) comprises an extension frame (203a) mounted on the outer wall of the mounting base (201); a bent fixing rod (203b) is mounted on the top of the extension frame (203a); a positioning block (203c) is mounted on the top side of the bent fixing rod (203b); and two groups of the positioning assembly (203) are provided, which are respectively mounted on opposite sides of the mounting base (201).

4. The universal automobile mechanical steering gear assembly testing device as claimed in claim 3, characterized in that: The driving assembly (204) comprises a driving motor (204a) mounted on the top of the mounting base (201), an output shaft (204b) being mounted on the output end of the driving motor (204a), and the output shaft (204b) being connected to two groups of elliptical blocks (205a).

5. The universal automobile mechanical steering gear assembly testing device as claimed in claim 4, characterized in that: The outer walls of one side of the two groups of elliptical blocks (205a) are both provided with inclined surfaces, the inclined surfaces are fitted with the bottom of the vibration plate (205f), the connecting plate (205d) is connected to the outer wall of the vibration plate (205f), and the maintaining spring (205c) applies a pulling force to the connecting plate (205d).

6. The universal automobile mechanical steering gear assembly testing device as claimed in claim 5, characterized in that: The transmission member (206b) comprises a toothed plate (206b-1) mounted on the bottom side of the pressure plate (206a); a small gear (206b-2) and a large gear (206b-3) meshing with each other are mounted on the inner wall of the mounting base (201); a meshing groove (206b-4) is provided on the piston member (206c); the toothed plate (206b-1) meshes with the small gear (206b-2); and the meshing groove (206b-4) meshes with the large gear (206b-3).

7. The universal automobile mechanical steering gear assembly testing device as claimed in claim 6, characterized in that: The piston member (206c) comprises a piston chamber (206c-1) mounted on the inner wall of a mounting base (201); a piston block (206c-2) is mounted on the inner wall of the piston chamber (206c-1); a piston rod (206c-3) is mounted on the top of the piston block (206c-2); a return spring (206c-4) is mounted on the top of the piston block (206c-2); and the top end of the return spring (206c-4) is connected to the inner top wall of the piston chamber (206c-1).

8. The universal automobile mechanical steering gear assembly testing device as claimed in claim 7, characterized in that: The one-way outflow member (206d) comprises a tube body (206d-1) mounted on the outer wall of the piston chamber (206c-1); a compression spring (206d-2) is mounted on the inner wall of the tube body (206d-1); a sealing plug (206d-3) is mounted on one end of the compression spring (206d-2); an air outlet (206d-4) is provided inside the tube body (206d-1); and the compression spring (206d-2) tightly fits the sealing plug (206d-3) onto the air outlet (206d-4).

9. The universal automobile mechanical steering gear assembly testing device as claimed in claim 8, characterized in that: The bending pushing assembly (207) comprises an inclined column (207a) mounted on an extension frame (203a), a sealing plate (207b) mounted on the inner wall of the inclined column (207a), a pull rod (207c) mounted on the outer wall of the sealing plate (207b), a limit block (207d) mounted on the outer wall of the pull rod (207c), and a pushing arc plate (207e) mounted on the pull rod (207c).

10. The universal automobile mechanical steering gear assembly testing device according to claim 9, characterized in that: The feedback component (208) includes a support block (208a) installed on the outer wall of the extension frame (203a), a pressure relief valve (208b) installed inside the mounting base (201), an extension column (208c) installed on the top of the valve cover of the pressure relief valve (208b), a movable connecting rod (208d) installed on the top of the extension column (208c) through a pin shaft, a supporting frame (208e) installed on the top of the mounting base (201), a pressing column (208f) installed through the inside of the supporting frame (208e), and an on-off switch (208g) installed on the outer wall of the mounting plate (205b).

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