Press-fitting positioning device for torsion bar gear of automobile steering engine sensor

Abstract

The utility model relates to the technical field of machinery, in particular to an automobile steering gear sensor torsion bar gear press-fitting positioning device which comprises a mounting plate, a supporting plate, an air cylinder, a band-type brake, a band-type brake shaft, an inclined cutting block, an inclined cutting supporting column, a fixing seat and a sliding seat. A piston rod of the air cylinder is connected with one end of a band-type brake shaft, the other end of the band-type brake shaft penetrates through the band-type brake and the supporting plate and then is connected with a sliding seat, the sliding seat is slidably connected with a fixing seat at the bottom of the mounting plate, and oblique cutting blocks on the inner surfaces of the two sides of the sliding seat are slidably connected with oblique cutting grooves in the surfaces of the oblique cutting supporting columns. Compared with the prior art, when the torsion bar and the gear of the automobile steering engine sensor are pressed, the gear of the sensor is positioned, the stability of the torsion bar in the assembling process is improved, and therefore the assembling quality and efficiency are improved; and the inclined cutting block is matched with the inclined cutting supporting column, so that the assembly requirements of steering engine sensors with different lengths are met.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a press-fit positioning device for a torsion bar gear of a steering gear sensor of an automobile. Background Art

[0002] The torsion bar of the car steering gear sensor is a connecting component installed between the steering gear input shaft and the pinion in the steering system, which plays the role of transmitting torque and angle. When the car is driving, the driver turns the steering wheel, and the torque and angle are transmitted from the steering column to the steering gear sensor input shaft through the intermediate shaft. When the input shaft rotates, the torsion bar is deformed first, and the steering gear sensor calculates the rotation angle and torque of the input shaft, converts them into electrical signals and outputs them to the steering gear power motor, so that it drives the power-assisted wheel to achieve the steering function.

[0003] As the only part connecting the steering gear input shaft and the pinion, the torsion bar has a significant impact on the reliability of the vehicle steering gear. If the torsion bar is not assembled properly, it will cause steering failure and abnormal noise defects. The quality of the torsion bar assembly directly affects the safety, handling stability and driving comfort of the vehicle.

[0004] At present, the sensor torsion bar press assembly only uses a cylinder for support and positioning. Due to product differences and limitations in equipment space layout, the limited length of the cylinder support and positioning mechanism cannot meet the needs for the following reasons:

[0005] 1. The pressure required to press the sensor torsion bar into the input shaft is about 13±2Kn. The position of the torsion bar needs to be kept fixed during the press-fitting process. Limited by the spatial structure and the stability of the air source, the use of the cylinder cannot meet the requirements of maintaining the stability of the torsion bar under such a large pressure, resulting in movement, resulting in the steering gear sensor torsion bar press-fitting depth unqualified and the entire device scrapped.

[0006] 2. Due to the height difference of steering gear sensors of different models, the use of cylinder support positioning with limited length cannot meet the press-fitting requirements of sensors of different models at the same time. The cylinder limit block needs to be adjusted every time the model is changed, otherwise the operation cannot be carried out, affecting production efficiency.

[0007] Therefore, it is necessary to design a press-fit positioning device for the torsion bar gear of the automobile steering gear sensor to ensure that the torsion bar remains stable during the press-fitting process without deflection, improve the assembly quality, and meet the assembly requirements of different types of sensors. Summary of the invention

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a press-fit positioning device for a torsion bar gear of a vehicle steering gear sensor, so as to ensure that the torsion bar remains stable and does not swing during the press-fit process, thereby improving the assembly quality and meeting the assembly requirements of sensors of different models.

[0009] In order to achieve the above-mentioned purpose, the utility model is a press-fit positioning device for a torsion bar gear of a car steering gear sensor, comprising a mounting plate, a support plate, a cylinder, a brake, a brake shaft, a bevel block, a bevel support column, a fixed seat, and a sliding seat. A vertically arranged support plate is installed at the bottom of the mounting plate, the cylinder and the brake are fixed on the support plate, the piston rod of the cylinder is connected to one end of the brake shaft, the other end of the brake shaft passes through the brake and the support plate, and is connected to the sliding seat, the sliding seat is slidably connected to the fixed seat at the bottom of the mounting plate, a bevel block is respectively installed on the inner surfaces of both sides of the sliding seat, the bevel blocks are slidably connected to the bevel grooves on the surface of the bevel support column, and the upper and lower ends of the bevel support column are respectively located in the through holes of the mounting plate and the fixed seat.

[0010] The cylinder and the brake shaft are connected by a connecting plate, the piston rod of the cylinder is connected to the lower end of the connecting plate, and the brake shaft is connected to the upper end of the connecting plate.

[0011] A bending structure is provided between the upper and lower ends of the connecting plate.

[0012] The middle part of the brake shaft is connected to the mounting plate by a linear bearing.

[0013] The lower end of the beveled support column abuts against the upper end of the sensor gear.

[0014] Compared with the prior art, the utility model positions the sensor gear when the torsion bar and the gear of the automobile steering gear sensor are pressed together, thereby improving the stability of the torsion bar during the assembly process, thereby improving the quality and efficiency of the assembly; the cooperation of the bevel block and the bevel support column can meet the assembly requirements of steering gear sensors of different lengths; the utility model has the advantages of simple installation and operation, flexible and efficient adjustment, and convenience and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the present utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 It is an axonometric view of the beveled support column of the utility model.

[0018] Figure 4 This is a schematic diagram of the utility model when the bevel cutting block is located at the initial position.

[0019] Figure 5 This is a schematic diagram of the utility model when the beveling block is located at the working position.

[0020] Figure 6 It is a schematic diagram of the utility model in use. DETAILED DESCRIPTION

[0021] The utility model is now further described with reference to the accompanying drawings.

[0022] See also Figure 1 , Figure 2 and Figure 3 The utility model is a press-fit positioning device for a torsion bar gear of a steering gear sensor of an automobile, comprising a mounting plate, a support plate, a cylinder, a brake device, a brake shaft, a bevel block, a bevel support column, a fixed seat, and a sliding seat. A vertically arranged support plate 7 is installed at the bottom of the mounting plate 4, a cylinder 5 and a brake device 6 are fixed on the support plate 7, a piston rod of the cylinder 5 is connected to one end of the brake shaft 2, and the other end of the brake shaft 2 passes through the brake device 6 and the support plate 7 and is connected to a sliding seat 11, the sliding seat 11 is slidably connected to a fixed seat 10 at the bottom of the mounting plate 4, a bevel block 8 is respectively installed on the inner surfaces of both sides of the sliding seat 11, the bevel block 8 is slidably connected to a bevel groove 91 on the surface of the bevel support column 9, and the upper and lower ends of the bevel support column 9 are respectively located in the through holes of the mounting plate 4 and the fixed seat 10.

[0023] The cylinder 5 is connected to the brake shaft 2 by a connecting plate 1, the piston rod of the cylinder 5 is connected to the lower end of the connecting plate 1, and the brake shaft 2 is connected to the upper end of the connecting plate 1. In order to achieve the connection between the piston rods of the cylinder 5 and the brake shaft 2 of different lengths, a bending structure is provided between the upper and lower ends of the connecting plate 1.

[0024] In order to facilitate the movement of the brake shaft 2 and improve the stability during the movement, a linear bearing 3 is used to connect the middle part of the brake shaft 2 and the mounting plate 4.

[0025] In the initial state, the piston rod of the cylinder 5 extends to the limit position, so that the brake shaft 2 drives the sliding seat 1 to move left to the limit position, and the bevel support column 9 is located at the uppermost end of the bevel block 8, such as Figure 4 shown.

[0026] When the steering gear sensor torsion bar is pressed into the gear shaft, the piston rod of the cylinder 5 retracts, pushing the brake shaft 2 to drive the sliding seat 1 to move to the right. When the bevel block 8 moves to the right, the bevel support column 9 moves downward along the bevel block 8, so that the left and right linear motion of the bevel block 8 is converted into the vertical motion of the bevel support column 9. When the lower end of the bevel support column 9 abuts against the upper end of the sensor gear 12, the sensor gear 12 is fixed, which serves as the positioning reference when the steering gear sensor torsion bar is pressed. Figure 5 , Figure 6 As shown, the bevel block 8 can generate vertical and horizontal thrusts on the bevel support column 9 at the same time, thereby meeting the assembly requirements of steering gear sensors of different lengths.

[0027] When the bevel block 8 moves into place, the brake device 6 is locked to fix the brake shaft 2 to prevent the brake shaft 2 from moving in the horizontal direction, thereby causing the bevel support column 9 to move in the vertical direction, affecting the press-fit quality of the steering gear sensor. When the steering gear torsion bar is pressed, the brake device 6 releases the brake shaft 2, the cylinder 5 drives the brake shaft 2 to reset to the left, and the bevel support column 9 moves upward along the bevel block 8 to the initial position, and the operation is completed.

[0028] In the present device, the cylinder 5 is only used as an actuator to push the bevel block 8 to move, and does not participate in the supporting and fixing work during the torsion bar press-fitting process.

[0029] The utility model positions the sensor gear when the torsion bar and the gear of the automobile steering gear sensor are press-fitted, thereby improving the stability of the torsion bar during the assembly process, thereby improving the quality and efficiency of the assembly; the cooperation of the bevel block and the bevel support column can meet the assembly requirements of steering gear sensors of different lengths; the utility model has the advantages of simple installation and operation, flexible and efficient adjustment, and convenience and practicality.

Claims

1. A torsion bar gear press-fit positioning device for a steering gear sensor of an automobile, comprising a mounting plate, a support plate, a cylinder, a brake, a brake shaft, a bevel block, a bevel support column, a fixed seat, and a sliding seat, characterized in that: A vertically arranged support plate (7) is installed at the bottom of the mounting plate (4), and the cylinder (5) and the brake device (6) are fixed on the support plate (7). The piston rod of the cylinder (5) is connected to one end of the brake shaft (2), and the other end of the brake shaft (2) passes through the brake device (6) and the support plate (7) and is connected to the sliding seat (11). The sliding seat (11) is slidably connected to the fixed seat (10) at the bottom of the mounting plate (4). A bevel block (8) is respectively installed on the inner surface of both sides of the sliding seat (11), and the bevel block (8) is slidably connected to the bevel groove (91) on the surface of the bevel support column (9). The upper and lower ends of the bevel support column (9) are respectively located in the through holes of the mounting plate (4) and the fixed seat (10).

2. The torsion bar gear press-fit positioning device for a steering gear sensor of an automobile according to claim 1, characterized in that: The cylinder (5) and the brake shaft (2) are connected by a connecting plate (1); the piston rod of the cylinder (5) is connected to the lower end of the connecting plate (1); and the brake shaft (2) is connected to the upper end of the connecting plate (1).

3. The torsion bar gear press-fit positioning device for a steering gear sensor of an automobile according to claim 2, characterized in that: A bending structure is provided between the upper and lower ends of the connecting plate (1).

4. The torsion bar gear press-fit positioning device for a steering gear sensor of an automobile according to claim 1, characterized in that: The middle portion of the brake shaft (2) is connected to the mounting plate (4) by a linear bearing (3).

5. The torsion bar gear press-fit positioning device for a steering gear sensor of an automobile according to claim 1, characterized in that: The lower end of the beveled support column (9) abuts against the upper end of the sensor gear (12).

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