Laser axial angle adjustment tool and method

Abstract

The present invention discloses a laser axial angle adjustment tool, which is suitable for a front steering axle. The front steering axle includes a front axle and a steering knuckle. The front axle is provided with a center line. The steering knuckle is connected to a fixed plate. An angle sensor is arranged inside the fixed plate. The angle sensor is connected to an angle display. The fixed plate is connected to a laser component. The laser component includes a laser transmitter head. The position of the laser transmitter head is adjusted so that the laser line emitted by the laser transmitter head is irradiated on the central axis of the front axle to set the angle value to zero. After the angle value is set to zero, the steering knuckle is rotated. The angle display is used to display the axial angle of the front steering axle assembly. Limit blocks are provided at both ends of the front axle, and the steering knuckle is threadedly connected with a fixing component. In the present invention, the angle display and the laser component are both installed on a fixed plate. There is only one connection reference, that is, the connection between the fixed plate and the steering knuckle. This can reduce the error and operation steps generated when the measuring tool is connected to the front steering axle, and improve the adjustment accuracy and operation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of axial angle adjustment of a front steering axle assembly, and in particular to a laser axial angle adjustment tool and method. Background Art

[0002] The axial turning angle of the front steering axle assembly refers to the relative rotation angle between the front wheel and the vehicle body during the steering process of the front steering axle. It is usually used to describe the movement range and angle of the steering axle during steering. Specifically, the axial turning angle is usually related to the steering angle of the front wheel, which affects the handling and stability of the vehicle. The front steering axle assembly usually includes components such as the front axle, steering gear, steering knuckle, and suspension system. When the driver turns the steering wheel, the steering system transmits torque through the front steering axle to drive the wheels to rotate. The rotation angle of the wheel is the steering angle, which determines the change in the direction of the vehicle. The axial turning angle of the front steering axle assembly is a parameter that limits the turning radius of the entire vehicle. Designers calculate the specific value based on the product structure, and need to adjust the angle to meet the requirements during product production.

[0003] In the prior art, the most practical one is the corner pallet measuring tool. The corner pallet measuring tool is divided into a base and a scale plate. The scale plate is engraved with the corresponding angle value and has a rotatable pointer plate (one end is the pointer and the other end is the support plate). When the corner pallet measuring tool is in use, the base needs to be accurate when it is fixed, the scale plate needs to be flat when connected to the base, and the pointer support plate and the steering knuckle also need to be aligned. There are many connection points, the operation time is long, the efficiency is low, and deviations are easy to occur during the adjustment process. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned background technical problems and to provide a laser axial angle adjustment tool and method.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A laser axial angle adjustment tool is suitable for a front steering axle, the front steering axle includes a front axle and a steering knuckle, the front axle is provided with a center line, the steering knuckle is connected to a fixed plate, an angle sensor is arranged in the fixed plate, the angle sensor is connected to an angle display, the fixed plate is connected to a laser component, the laser component includes a laser transmitter head, the position of the laser transmitter head is adjusted so that the laser line emitted by the laser transmitter head is irradiated on the central axis of the front axle to set the angle value to zero, the steering knuckle is rotated after the angle value is set to zero, the angle display is used to display the axial rotation angle of the front steering axle assembly, limit blocks are provided at both ends of the front axle, the steering knuckle is threadedly connected with a fixing piece, the length of the fixing piece embedded in the steering knuckle is adjusted so that the limit block abuts against the fixing piece to adjust the maximum axial rotation angle of the front steering axle assembly.

[0006] As a further solution of the present invention: the laser component includes a base, the base is fixedly mounted on the fixing plate, a connecting plate is fixed on the base, an adjustment hole is provided on the connecting plate, and the adjustment hole is a fan-shaped hole structure.

[0007] As a further solution of the present invention: the connecting plate is installed with a supporting plate, the connecting plate is in contact with the supporting plate, and the supporting plate can rotate relative to the connecting plate and be fixed by bolts.

[0008] As a further solution of the present invention: the laser emitting head is fixedly mounted on the top of the supporting plate, and the height of the laser line emitted by the laser emitting head is adjusted by rotating the supporting plate.

[0009] As a further solution of the present invention: steering knuckles are provided at both ends of the front axle, and the front axle is rotatably connected to the steering knuckles.

[0010] As a further solution of the present invention: the fixing plate is provided with a connecting hole, one end of the steering knuckle passes through the connecting hole, a magnetic block is arranged above the connecting hole, a magnetic control knob is arranged on the magnetic block, and the fixing plate and the steering knuckle are positioned by the magnetic block.

[0011] As a further solution of the present invention: a protective ring is arranged between the fixing plate and the steering knuckle, and the fixing plate, the protective ring and the steering knuckle are fixed to each other by bolts.

[0012] A method for adjusting a tool using a laser axial angle, comprising: S1, the fixing plate is fixed to the steering knuckle at one end of the front axle by magnets in a magnetic attraction manner; S2. Rotate the steering knuckle in the horizontal plane to rotate the fixed plate until the projection of the laser line emitted by the laser transmitter in the vertical plane coincides with the central axis; S3. Rotate the laser transmitter head in the vertical plane so that the laser line emitted by the laser transmitter head is irradiated on the central axis of the front axle, and set the angle value displayed on the angle display to zero; S4. Preset an axial angle value, rotate the steering knuckle in the horizontal plane until the angle display shows the preset axial angle value, screw the fixing part into the steering knuckle, make one end of the fixing part abut against the limit block, and the axial angle adjustment of the front steering axle assembly is completed.

[0013] Beneficial effects of the present invention: (1) In the present invention, the angle display and the laser component are both mounted on a fixed plate, and there is only one connection reference, namely, the connection between the fixed plate and the steering knuckle. This can reduce the error and operation steps generated when the measuring tool is connected to the front steering axle, thereby improving the adjustment accuracy and operation efficiency.

[0014] (2) In the present invention, the method of using laser line to find the angle reference position is simple and clear, which is convenient for visual inspection during operation, and the angle display has strong visibility, which can avoid errors in angle reading.

[0015] (3) In the present invention, the fixing plate is fixed to the front steering axle by magnetic attraction when connected. When adjusting the position of the fixing plate, it only needs to be pushed in the direction where it needs to be moved. When separating the fixing plate from the front steering axle, it only needs to rotate the magnetic control knob to eliminate the magnetic attraction. The entire installation and adjustment are convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the laser axial angle adjustment tooling of the present invention; Figure 2 It is a structural schematic diagram of the laser axial angle adjustment tooling of the present invention; Figure 3 It is a schematic diagram of the structure explosion of the laser axial angle adjustment tool of the present invention; Figure 4 yes Figure 2 The enlarged view of point A in the middle; Figure 5 yes Figure 3 Structural diagram of the middle fixed plate; Figure 6 yes Figure 3 Structural diagram of the middle fixed plate; Figure 7 yes Figure 3 Schematic diagram of the structure of the laser component; Figure 8 It is a schematic flow chart of the laser axial angle adjustment method of the present invention.

[0018] In the figure: 1. Front axle; 11. Center axis; 12. Limit block; 2. Steering knuckle; 3. Fixing plate; 31. Connecting hole; 4. Magnetic block; 41. Magnetic control knob; 5. Angle display; 6. Laser component; 61. Base; 62. Connecting plate; 63. Adjusting hole; 64. Support plate; 65. Adjusting bolt; 66. Laser transmitter; 7. Protective ring; 8. King pin; 9. Fixing part. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3 As shown, the present invention is a laser axial angle adjustment tool, which is suitable for a front steering axle, the front steering axle comprises a front axle 1 and a steering knuckle 2, both ends of the front axle 1 are provided with a steering knuckle 2, and the front axle 1 and the steering knuckle 2 are rotatably connected through a kingpin 8. The front axle 1 is provided with a center line 11.

[0021] Specifically, the steering knuckle 2 is connected to the fixing plate 3, which is a hollow plate structure, which can reduce its own weight, make it easier to assemble, and reduce the pressure on the steering knuckle 2. An angle sensor is configured in the fixing plate 3, and the angle sensor is electrically connected to the angle display 5. The angle sensor can monitor the rotation angle of the steering knuckle 2 and the fixing plate 3, and display the rotation angle through the angle display 5.

[0022] Among them, see Figure 1 , Figure 5-Figure 7 As shown, the fixing plate 3 is provided with a connection hole 31, one end of the steering knuckle 2 passes through the connection hole 31, a magnetic block 4 is arranged above the connection hole 31, and a magnetic control knob 41 is arranged on the magnetic block 4. Since the steering knuckle 2 is generally made of metal materials, including but not limited to cast iron, steel, aluminum alloy, and forged steel, the fixing plate 3 and the steering knuckle 2 can be positioned by the magnetic block 4. The magnetic block 4 can also play a role in pre-fixing the fixing plate 3 and the steering knuckle 2 during positioning.

[0023] Furthermore, a protective ring 7 is provided between the fixed plate 3 and the steering knuckle 2, and the fixed plate 3, the protective ring 7, and the steering knuckle 2 are fixed to each other by a plurality of bolts. The material of the protective ring 7 includes, but is not limited to, rubber and silicone. A plurality of bolts penetrate the protective ring 7. When installing the steering knuckle 2 and the fixed plate 3, a plurality of bolts are inserted into matching holes on the fixed plate 3 and tightened, so that the steering knuckle 2, the protective ring 7, and the fixed plate 3 fit each other. The protective ring 7 can protect the fixed plate 3 and the steering knuckle 2 to prevent the fixed plate 3 and the steering knuckle 2 from contacting too quickly and colliding when the magnetic block 4 is magnetically attracted, thereby causing damage and deformation of the workpiece.

[0024] See also Figure 1 , Figure 8 As shown, the fixing plate 3 is connected to the laser component 6, and the laser component 6 includes a base 61, and the base 61 is fixedly mounted on the fixing plate 3. A connecting plate 62 is fixed to the base 61 by bolts, and the connecting plate 62 is provided with an adjustment hole 63, and the adjustment hole 63 is a fan-shaped hole structure. The connecting plate 62 is installed with a supporting plate 64, and the connecting plate 62 is fitted with the supporting plate 64, and the supporting plate 64 can rotate relative to the connecting plate 62 and be fixed by bolts.

[0025] A laser emitting head 66 is fixedly mounted on the top of the support plate 64 , and the height of the laser line emitted by the laser emitting head 66 can be adjusted by rotating the support plate 64 .

[0026] Specifically, a bolt fixing point is set between the connecting plate 62 and the supporting plate 64 to connect the connecting plate 62 and the supporting plate 64, and then the supporting plate 64 is rotated with the fixing point as the rotation center. At this time, the angle between the laser line emitted by the laser transmitting head 66 and the horizontal plane changes, and the height of the end of the laser line away from the laser transmitting head 66 changes accordingly until the laser line is irradiated on the central axis 11 of the front axle 1.

[0027] In this embodiment, by adjusting the position of the laser emitting head 66, the laser line emitted by the laser emitting head 66 is irradiated on the central axis 11 of the front axle 1, and then the adjusting bolt 65 is used to pass through the adjusting hole 63 to fix the support plate 64. At this time, the laser emitting head 66 and the connecting plate 62 remain relatively still, and the angle value is set to zero on the angle display 5. After the angle value is set to zero, the steering knuckle 2 is rotated, and the angle display 5 is used to display the axial rotation angle of the front steering axle assembly. Limit blocks 12 are set at both ends of the front axle 1. The limit blocks 12 are a boss structure. The steering knuckle 2 is threadedly connected with a fixing member 9. The length of the fixing member 9 embedded in the steering knuckle 2 is adjusted so that the limit block 12 abuts against the fixing member 9 to adjust the maximum axial rotation angle of the front steering axle assembly. The fixing member 9 includes but is not limited to a screw rod and a lead screw structure. Preferably, a screw is used.

[0028] See also Figure 1-Figure 4 , Figure 8 As shown, to adjust the position of the laser emitter 66, it is necessary to first adjust the rotation of the fixed plate 3. First, rotate the steering knuckle 2 in the horizontal plane, and the fixed plate 3 rotates with the steering knuckle 2, thereby driving the laser emitter 66 to rotate in the horizontal plane until the projection of the laser line emitted by the laser emitter 66 in the vertical plane coincides with the central axis 11. Then rotate the support plate 64 to rotate the laser emitter 66 in the vertical plane until the laser line emitted by the laser emitter 66 irradiates the central axis 11 of the front axle 1, and then use the adjustment bolt 65 to pass through the adjustment hole 63 to fix the support plate 64, and set the angle value to zero on the angle display 5. After the angle value is set to zero, the rotation angles of the steering knuckle 2 and the fixed plate 3 are both zeroed, and then rotate the steering knuckle 2, and the angle display 5 dynamically displays the angle value according to the position change until the angle display 5 displays the preset axial angle value (i.e., the axial rotation angle of the front steering axle assembly). Screw the fixing member 9 into the steering knuckle 2 so that one end of the fixing member 9 abuts against the limit block 12, and the axial rotation angle adjustment of the front steering axle assembly is completed.

[0029] The inventor discovered that in the prior art, when using the corner card measuring tool for measurement, the base needs to be fixed on the front axle reference hole to be measured in order to find the reference. Then one end of the scale plate is fixed on the base, and the pointer plate is fitted with the steering knuckle 2. When the steering knuckle 2 is turned, the pointer points to different angles, and the corresponding angle is adjusted according to the scale on the scale plate. This also requires that the base needs to have an accurate reference when it is fixed, the scale plate needs to be flat when connected to the base, and the pointer plate and the steering knuckle 2 also need to be aligned. There are many connection points, the operation time is long, the efficiency is low, and deviations are easy to occur during the adjustment process. In addition, the angle on the scale plate is electrically engraved, and the general angle can be viewed as an integer, which will result in estimation errors.

[0030] See also Figure 8 As shown, in another embodiment, a method for adjusting the axial angle using a laser axial angle adjustment tool comprises: S1, the fixing plate 3 is fixed on the steering knuckle 2 at one end of the front axle 1 by magnet 4 in a magnetic attraction manner, and this process is pre-fixing. Then, the fixing plate 3 and the steering knuckle 2 are connected and fixed by bolts.

[0031] S2. Rotate the steering knuckle 2 in the horizontal plane to rotate the fixing plate 3, thereby driving the laser emitting head 66 to rotate in the horizontal plane, until the projection of the laser line emitted by the laser emitting head 66 in the vertical plane coincides with the central axis 11.

[0032] S3. Rotate the laser emitting head 66 in the vertical plane so that the laser line emitted by the laser emitting head 66 is irradiated on the central axis 11 of the front axle 1, and set the angle value displayed by the angle display 5 to zero. At this time, the position of the steering knuckle 2 is defined as the 0° position, and the 0° position is used as the angle reference.

[0033] S4. Preset an axial angle value, rotate the steering knuckle 2 in the horizontal plane until the angle display 5 displays the preset axial angle value. The angle formed by the steering knuckle 2 from the 0° position to the final position of rotation is the axial angle value, that is, the axial rotation angle of the front steering axle assembly. Finally, screw the fixing member 9 into the steering knuckle 2 until the fixing member 9 supports the limit block 12, so that one end of the fixing member 9 abuts against the limit block 12, and the axial rotation angle adjustment of the front steering axle assembly is completed. This adjusted angle is the maximum axial rotation angle of the front steering axle assembly when in use, that is, the maximum angle of subsequent rotation of the steering knuckle 2.

[0034] In the present invention, since the structure is integrated, the angle measurement (angle display 5) and the reference alignment related components (laser component 6) are all installed on a fixed plate 3, and there is only one connection reference, that is, the connection between the fixed plate 3 and the steering knuckle 2, which can reduce the errors and operating steps generated when the measuring tool is connected to the front steering axle, and improve the adjustment accuracy and operating efficiency.

[0035] Moreover, the method of using the laser line to find the angle reference position is simple and clear, which is convenient for visual inspection during operation. In addition, the angle display 5 has strong visibility, which can avoid errors in angle reading.

[0036] It can be understood that the fixed plate 3 is fixed to the front steering axle by magnetic attraction when connected. To adjust the position of the fixed plate 3, it is only necessary to push it in the direction where it needs to be moved. When separating the fixed plate 3 from the front steering axle, it is only necessary to rotate the magnetic control knob 41 to eliminate the magnetic attraction. The entire installation and adjustment are convenient and quick.

[0037] Working principle: the fixing plate 3 is pre-fixed on the steering knuckle 2 at one end of the front axle 1 by means of magnet 4 by magnetic attraction, and then fixed with bolts, and the position of the laser emitting head 66 is adjusted. The steering knuckle 2 is first rotated in the horizontal plane, and the fixing plate 3 rotates with the steering knuckle 2, driving the laser emitting head 66 to rotate in the horizontal plane until the projection of the laser line emitted by the laser emitting head 66 in the vertical plane coincides with the central axis 11, and then the supporting plate 64 is rotated to rotate the laser emitting head 66 in the vertical plane until the laser line emitted by the laser emitting head 66 irradiates the central axis 11 of the front axle 1, and the supporting plate 64 is fixed by using the adjusting bolt 65 to pass through the adjusting hole 63, and the angle value is set to zero on the angle display 5, and then the steering knuckle 2 is rotated, and the angle display 5 dynamically displays the angle value according to the position change until the angle display 5 displays the preset axial angle value (i.e., the axial angle of the front steering axle assembly), and the fixing member 9 is screwed into the steering knuckle 2, so that one end of the fixing member 9 abuts against the limit block 12.

[0038] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A laser axial angle adjustment tool, suitable for a front steering axle, the front steering axle comprising a front axle (1) and a steering knuckle (2), the front axle (1) being provided with a center line (11), characterized in that: The steering knuckle (2) is connected to a fixing plate (3), an angle sensor is arranged inside the fixing plate (3), and the angle sensor is connected to an angle display (5); The fixing plate (3) is connected to a laser component (6), and the laser component (6) includes a laser emitting head (66). The position of the laser emitting head (66) is adjusted so that the laser line emitted by the laser emitting head (66) is irradiated on the central axis (11) of the front axle (1) to set the angle value to zero; After the angle value is set to zero, the steering knuckle (2) is rotated, and the angle display (5) is used to display the axial rotation angle of the front steering axle assembly; Limit blocks (12) are provided at both ends of the front axle (1); the steering knuckle (2) is threadedly connected with a fixing piece (9); the length of the fixing piece (9) embedded in the steering knuckle (2) is adjusted so that the limit blocks (12) abut against the fixing piece (9), thereby adjusting the maximum axial rotation angle of the front steering axle assembly.

2. The laser axial angle adjustment tool according to claim 1, characterized in that: The laser component (6) comprises a base (61), the base (61) is fixedly mounted on the fixing plate (3), a connecting plate (62) is fixed on the base (61), an adjusting hole (63) is provided on the connecting plate (62), and the adjusting hole (63) is a fan-shaped hole structure.

3. The laser axial angle adjustment tool according to claim 2, characterized in that: The connecting plate (62) is installed with a supporting plate (64), the connecting plate (62) is in close contact with the supporting plate (64), and the supporting plate (64) can rotate relative to the connecting plate (62) and be fixed by bolts.

4. The laser axial angle adjustment tool according to claim 3, characterized in that: The laser emitting head (66) is fixedly mounted on the top of the supporting plate (64), and the height of the laser line emitted by the laser emitting head (66) can be adjusted by rotating the supporting plate (64).

5. The laser axial angle adjustment tool according to claim 1, characterized in that: Steering knuckles (2) are provided at both ends of the front axle (1), and the front axle (1) is rotatably connected to the steering knuckles (2).

6. The laser axial angle adjustment tool according to claim 5, characterized in that: The fixing plate (3) is provided with a connection hole (31), one end of the steering knuckle (2) passes through the connection hole (31), a magnetic block (4) is arranged above the connection hole (31), a magnetic control knob (41) is arranged on the magnetic block (4), and the fixing plate (3) and the steering knuckle (2) are positioned by means of the magnetic block (4).

7. The laser axial angle adjustment tool according to claim 6, characterized in that: A protective ring (7) is arranged between the fixing plate (3) and the steering knuckle (2); the fixing plate (3), the protective ring (7) and the steering knuckle (2) are fixed to each other by bolts.

8. A method for using the laser axial angle adjustment tool according to any one of claims 1 to 7, characterized in that: include: S1, the fixing plate (3) is fixed to the steering knuckle (2) at one end of the front axle (1) by means of magnet (4) in a magnetic attraction manner, and is connected and fixed by bolts; S2, rotating the steering knuckle (2) in the horizontal plane to rotate the fixing plate (3) until the projection of the laser line emitted by the laser emitting head (66) in the vertical plane coincides with the central axis (11); S3, rotating the laser emitting head (66) in a vertical plane so that the laser line emitted by the laser emitting head (66) is irradiated on the central axis (11) of the front axle (1), and the angle value displayed by the angle display (5) is set to zero; S4. Preset an axial angle value, rotate the steering knuckle (2) in a horizontal plane until the angle display (5) displays the preset axial angle value, screw the fixing member (9) into the steering knuckle (2), make one end of the fixing member (9) abut against the limit block (12), and the axial rotation angle adjustment of the front steering axle assembly is completed.

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