Universal clamp structure for steering gear test bench

Abstract

The utility model discloses a universal clamp structure for a steering gear test bench, and relates to the technical field of steering gear clamping. The technical problem that in the clamping process of a steering gear, the steering gear is prone to lateral deviation due to the fact that the steering gear is not centered is solved. According to the technical scheme, the universal clamp structure for the steering gear test bed comprises a clamp structure main body and further comprises a mounting bottom plate, a driving assembly, an auxiliary assembly, a rotating assembly, a positioning table, a steering gear body and a fixing assembly; according to the universal clamp structure for the steering gear test bed, the steering gear body can be centered conveniently through the driving assembly, the steering gear body can be steered according to test requirements through the rotating assembly and the auxiliary assembly, longitudinal clamping can be conducted through the fixing assembly, and the problem that lateral deviation is prone to occurring after clamping is effectively solved; compared with a traditional clamping mode, the structure enables the steering gear to be more balanced, guarantees the stability of the steering gear, and guarantees the smooth operation of a test.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear clamping, in particular to a universal clamp structure for a steering gear test bench. Background Art

[0002] The steering gear test bench uses a hydraulic system and a servo motor system to simulate the actual working conditions of the steering gear. It can perform proportional load tests, forward and reverse tests, valve tests, noise tests (assembly noise and valve noise), internal leakage (assembly internal leakage and valve internal leakage) and other related comprehensive performance tests on the automobile steering gear. Among them, the fixture is the main component of the steering gear test bench and plays the role of fixing the steering gear. However, when conducting tests, the existing fixture generally fixes the steering gear on the bench by clamping the clamp on the shaft of the steering gear. The structure of the steering gear is asymmetrical, and the end with the teeth is heavier, resulting in the clamping point not being centered and easily deviating, which in turn affects the test. Utility Model Content

[0003] The utility model aims to provide a universal fixture structure for a steering gear test bench, so as to solve the problem in the background technology that the universal fixture for a steering gear test bench is prone to lateral deviation when in use due to the steering gear not being clamped in the center.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal fixture structure of a steering gear test bench, including a fixture structure main body, and also including a mounting base plate, a drive component, an auxiliary component, a rotating component, a positioning table, a steering gear body, and a fixed component; the lower end of the fixture structure main body is fixed with a mounting base plate, the inner side of the fixture structure main body is provided with a drive component, the upper end of the drive component is connected to the auxiliary component, the upper end of the drive component is connected to the rotating component, the upper end of the fixture structure main body is fixed with a positioning table, the upper end of the positioning table is connected to the steering gear body, and the upper end of the fixture structure main body is provided with a fixed component.

[0005] Preferably, the driving assembly is provided to facilitate centering the steering gear body, the rotating assembly cooperates with the auxiliary assembly to drive the steering gear body to steer according to test requirements, and the fixing assembly can be used to perform longitudinal clamping, which effectively solves the problem of lateral deviation after clamping. Compared with traditional clamping methods, this structure can make the steering gear more balanced and stable.

[0006] Preferably, the driving assembly includes a dual-axis motor, a screw rod, and a bearing. The dual-axis motor is installed on the inner side of the clamp structure body. The front and rear ends of the dual-axis motor are connected to screw rods. The screw rods are rotatably connected to the bearings. The bearings are fixed on the inner side of the clamp structure body. The dual-axis motor can provide power to drive the screw rod to rotate, thereby realizing horizontal movement of the movable support frame.

[0007] Preferably, the driving assembly also includes a movable support bracket, which is arranged on the surface of the screw rod. There are two movable supports, which are threadedly connected to the screw rod. Since the threads of the two screw rods are in opposite directions, when the two screw rods rotate synchronously, the two movable supports can move towards each other or in opposite directions at the same time.

[0008] Preferably, the auxiliary component includes a first positioning plate, a sleeve, and a connecting head. The first positioning plate is fixed to the upper end of the movable support, the sleeve is fixed to the front of the first positioning plate, the inner side of the sleeve is connected to the connecting head, and the connecting head is rotatably connected to the sleeve. The first clamping head can be rotated by rotating the connecting head in the sleeve to assist the steering gear in changing its angle.

[0009] Preferably, the auxiliary component also includes a first clamping head and a first elastic sheet. The first clamping head is fixed to the back of the connecting head, and the surface of the first clamping head is connected to the first elastic sheet. When the first clamping head is inserted into the steering gear, the steering gear can be clamped and fixed on the first clamping head by the deformation of the first elastic sheet.

[0010] Preferably, the rotating assembly includes a second positioning plate, a driving motor, an output shaft, a second clamping head, and a second elastic sheet. The second positioning plate is fixed to the upper end of the movable support frame, the driving motor is installed on the back of the second positioning plate, the output shaft is connected to the front of the driving motor, the second clamping head is fixed to the surface of the output shaft, and the surface of the second clamping head is connected to the second elastic sheet. When the second clamping head is clamped in the steering gear, the rotation of the output shaft can be used to achieve rotation of the steering gear.

[0011] Preferably, the fixing assembly includes a support frame, a pneumatic cylinder, a piston rod, and a movable splint. The upper end of the clamp structure body is connected to the support frame, the upper end of the support frame is installed with a pneumatic cylinder, the upper end of the pneumatic cylinder is connected to the piston rod, and the upper end of the piston rod is provided with a movable splint. The pneumatic cylinder provides power to drive the pneumatic cylinder to rise or fall, thereby fixing the steering gear on the positioning table.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The universal fixture structure of the steering gear test bench can easily center the steering gear body through the driving component, and can also make the steering gear body turn according to the test needs through the rotating component and the auxiliary component, and can be clamped longitudinally through the fixed component, which effectively solves the problem of easy lateral deviation after clamping. Compared with the traditional clamping method, this structure can make the steering gear more balanced, ensure its stability, and thus ensure the smooth progress of the test;

[0014] 2. The universal clamp structure of the steering gear test bench is provided with a first clamping head and a second clamping head relative to each other on the main body of the clamp structure. The deformation of the elastic sheet can be used to achieve rapid lateral clamping. A rotating output shaft is provided on the second clamping head. The steering gear can be adjusted in different directions to achieve clamping and rotation at the same time, which has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the split structure of the first positioning plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the main structure of the fixture structure of the utility model.

[0019] In the figure: 1. main body of the fixture structure; 2. mounting base plate; 3. driving assembly; 4. auxiliary assembly; 5. rotating assembly; 6. positioning table; 7. steering gear body; 8. fixing assembly; 301. dual-axis motor; 302. screw rod; 303. bearing; 304. movable support frame; 401. first positioning plate; 402. sleeve; 403. connector; 404. first clamping head; 405. first elastic sheet; 501. second positioning plate; 502. driving motor; 503. output shaft; 504. second clamping head; 505. second elastic sheet; 801. support frame; 802. pneumatic cylinder; 803. piston rod; 804. movable splint. DETAILED DESCRIPTION

[0020] See also Figure 1-2The utility model provides a technical solution: a universal fixture structure for a steering gear test bench, including a fixture structure main body 1, and also including a mounting base plate 2, a driving component 3, an auxiliary component 4, a rotating component 5, a positioning platform 6, a steering gear body 7, and a fixing component 8; the lower end of the fixture structure main body 1 is fixed with a mounting base plate 2, the inner side of the fixture structure main body 1 is provided with a driving component 3, the upper end of the driving component 3 is connected with an auxiliary component 4, the upper end of the driving component 3 is connected with a rotating component 5, the upper end of the fixture structure main body 1 is fixed with a positioning platform 6, the upper end of the positioning platform 6 is connected with a steering gear body 7, and the upper end of the fixture structure main body 1 is provided with a fixing component 8, the driving component 3 is arranged to facilitate the centering of the steering gear body 7, the rotating component 5 cooperates with the auxiliary component 4 to drive the steering gear body 7 to steer according to the test needs, and the fixing component 8 is arranged to perform longitudinal clamping, which effectively solves the problem of easy lateral deviation after clamping. The problem is that compared with the traditional clamping method, the structure can make the steering gear more balanced and stable. The driving component 3 includes a dual-axis motor 301, a screw rod 302, and a bearing 303. The dual-axis motor 301 is installed on the inner side of the clamp structure body 1. The front and rear ends of the dual-axis motor 301 are connected with screw rods 302. The screw rod 302 is rotatably connected with the bearing 303. The bearing 303 is fixed on the inner side of the clamp structure body 1. The dual-axis motor 301 can provide power to drive the screw rod 302 to rotate, so as to realize the horizontal movement of the movable support frame 304. The driving component 3 also includes a movable support frame 304. The surface of the screw rod 302 is provided with a movable support frame 304. There are two movable supports 304. The movable support frame 304 is threadedly connected to the screw rod 302. Since the threads of the two screw rods 302 are in opposite directions, when the two screw rods 302 rotate synchronously, the two movable supports 304 can move towards or in opposite directions at the same time.

[0021] See also Figure 3-4In this embodiment, the auxiliary component 4 includes a first positioning plate 401, a sleeve 402, and a connector 403. The first positioning plate 401 is fixed to the upper end of the movable support 304, the sleeve 402 is fixed in front of the first positioning plate 401, the inner side of the sleeve 402 is connected to the connector 403, the connector 403 is rotatably connected to the sleeve 402, and the first clamping head 404 can be rotated by rotating the connector 403 in the sleeve 402 to assist the steering gear in adjusting the angle. The auxiliary component 4 also includes a first clamping head 404 and a first elastic sheet 405. The first clamping head 404 is fixed to the back of the connecting head 403, and the first elastic sheet 405 is connected to the surface of the first clamping head 404. When the first clamping head 404 is inserted into the steering gear, the steering gear can be clamped and fixed on the first clamping head 404 by the deformation of the first elastic sheet 405. The rotating component 5 includes a second positioning plate 501, a driving motor 502, an output shaft 503, a second clamping head 5 04, a second elastic sheet 505, a second positioning plate 501 is fixed to the upper end of the movable support 304, a driving motor 502 is installed on the back of the second positioning plate 501, an output shaft 503 is connected to the front of the driving motor 502, a second clamping head 504 is fixed to the surface of the output shaft 503, and a second elastic sheet 505 is connected to the surface of the second clamping head 504. When the second clamping head 504 is clamped in the steering gear, the rotation of the output shaft 503 can be used to realize the rotation of the steering gear, and the fixed The fixed component 8 includes a support frame 801, a pneumatic cylinder 802, a piston rod 803, and a movable splint 804. The upper end of the clamp structure body 1 is connected to the support frame 801, and the upper end of the support frame 801 is installed with a pneumatic cylinder 802. The upper end of the pneumatic cylinder 802 is connected to the piston rod 803, and the upper end of the piston rod 803 is provided with a movable splint 804. The pneumatic cylinder 802 provides power to drive the pneumatic cylinder 802 to rise or fall, and then the steering gear can be fixed on the positioning platform 6.

[0022] When using the universal fixture structure of the steering gear test bench of the present technical solution, first grasp the steering gear body 7 and place it on the positioning table 6, then start the dual-axis motor 301, and rotate the screw rod 302 in the bearing 303, which can drive the two movable supports 304 to move on the screw rod 302 at the same time, so that the first positioning plate 401 and the second positioning plate 501 move toward the steering gear body 7 at the same time, until the first clamping head 404 and the second clamping head 504 are clamped on the two ends of the steering gear body 7, and the lateral clamping can be completed.

[0023] Then, the driving motor 502 can be started, and the second clamping head 504 can be driven to rotate through the output shaft 503. At the same time, the connecting head 403 can be rotated in the sleeve 402 to achieve horizontal rotation of the steering gear body 7, so as to make corresponding adjustments according to the test needs. Finally, the pneumatic cylinder 802 is started, and the movable clamping plate 804 is driven to move downward through the piston rod 803 to achieve longitudinal clamping.

[0024] Through the above steps, the steering gear body 7 can be easily centered through the driving component 3, and then the two ends can be clamped through the rotating component 5 and the auxiliary component 4 provided in cooperation, and the steering gear body 7 can be driven to steer according to the test needs, and finally the longitudinal clamping can be performed through the fixing component 8 to achieve fixation.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal fixture structure for a steering gear test bench, comprising a fixture structure main body (1), characterized in that: The invention also comprises a mounting base plate (2), a driving component (3), an auxiliary component (4), a rotating component (5), a positioning platform (6), a steering gear body (7), and a fixing component (8); the mounting base plate (2) is fixed to the lower end of the fixture structure body (1); the driving component (3) is arranged on the inner side of the fixture structure body (1); the upper end of the driving component (3) is connected to the auxiliary component (4); the upper end of the driving component (3) is connected to the rotating component (5); the upper end of the fixture structure body (1) is fixed to the positioning platform (6); the upper end of the positioning platform (6) is connected to the steering gear body (7); and the upper end of the fixture structure body (1) is arranged to the fixing component (8).

2. The universal fixture structure for the steering gear test bench according to claim 1 is characterized in that: The driving assembly (3) comprises a dual-axis motor (301), a screw rod (302), and a bearing (303). The dual-axis motor (301) is installed on the inner side of the clamp structure body (1). The front and rear ends of the dual-axis motor (301) are both connected to the screw rod (302). The screw rod (302) is rotatably connected to the bearing (303), and the bearing (303) is fixed on the inner side of the clamp structure body (1).

3. The universal fixture structure for a steering gear test bench according to claim 2 is characterized in that: The driving assembly (3) also includes a movable support frame (304). The surface of the screw rod (302) is provided with the movable support frame (304). Two movable support frames (304) are provided. The movable support frames (304) are threadedly connected to the screw rod (302).

4. The universal fixture structure for a steering gear test bench according to claim 1 is characterized in that: The auxiliary component (4) includes a first positioning plate (401), a sleeve (402), and a connecting head (403). The first positioning plate (401) is fixed to the upper end of the movable support (304), the sleeve (402) is fixed to the front of the first positioning plate (401), the inner side of the sleeve (402) is connected to the connecting head (403), and the connecting head (403) is rotatably connected to the sleeve (402).

5. The universal fixture structure for the steering gear test bench according to claim 4 is characterized in that: The auxiliary component (4) also includes a first clamping head (404) and a first elastic sheet (405). The first clamping head (404) is fixed on the back of the connecting head (403), and the surface of the first clamping head (404) is connected to the first elastic sheet (405).

6. The universal fixture structure for a steering gear test bench according to claim 1 is characterized in that: The rotating assembly (5) comprises a second positioning plate (501), a driving motor (502), an output shaft (503), a second clamping head (504), and a second elastic sheet (505); the second positioning plate (501) is fixed to the upper end of the movable support frame (304); the driving motor (502) is installed on the back of the second positioning plate (501); the output shaft (503) is connected to the front of the driving motor (502); the second clamping head (504) is fixed to the surface of the output shaft (503); and the second elastic sheet (505) is connected to the surface of the second clamping head (504).

7. The universal fixture structure for a steering gear test bench according to claim 1 is characterized in that: The fixing assembly (8) comprises a support frame (801), a pneumatic cylinder (802), a piston rod (803), and a movable clamp (804); the upper end of the clamp structure main body (1) is connected to the support frame (801); the upper end of the support frame (801) is equipped with a pneumatic cylinder (802); the upper end of the pneumatic cylinder (802) is connected to the piston rod (803); and the upper end of the piston rod (803) is provided with a movable clamp (804).

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