178 results about "Pitman arm" patented technology

A marine drive is for propelling a marine vessel. The marine drive has a propulsor configured to generate a thrust force in a body of water; a battery that powers the propulsor; and a supporting frame which supports the marine drive relative to marine vessel. The supporting frame has a monolithic body defining a frame interior, and further has a support leg extending downwardly from the monolithic body and a steering arm extending forwardly from monolithic body. A cowling is fixed to the supporting frame via at least one hidden fastener that extends from the frame interior, through the supporting frame, and into engagement with the cowl body, wherein hidden fastener being accessible during installation.

The invention relates to an angle module and a reconfigurable all-wheel independent steering drive-by-wire chassis, the angle module comprises an angle module frame, a steering motor, a controller of the steering motor, a ball cage universal joint, a steering arm, a hub motor, a controller of the hub motor, a suspension unit, a brake unit and a battery, the suspension unit comprises an upper swing arm, a lower swing arm and a damping spring, the steering motor is connected with the upper swing arm, the upper swing arm is rotationally connected with an upper section bar of the angle module frame, the lower swing arm is connected with the steering arm through a spherical hinge, and the damping spring is connected with the steering arm. The lower swing arm is rotatably connected with the lower profile of the angle module frame; the upper and lower ends of the damping spring are rotatably connected with the angle module frame and the lower swing arm respectively; and the angle modules and the connecting modules are spliced to form the drive-by-wire chassis. According to the angle module and the drive-by-wire chassis, modular design is adopted, all-wheel independent steering can be achieved, and the size, configuration and dynamic performance of the chassis can be flexibly adjusted.

The present invention relates to the technical field of automobile steering arm bracket processing, and specifically relates to a combined turning and grinding special machine for automobile steering arm brackets, which includes a base. On the outer wall of the top of the base, two symmetrically arranged second supports are fixedly connected. On the outer walls of the tops of the two second supports, first guide rails are fixedly connected. On the outer walls of the tops of the two first guide rails, first guide blocks are slidably connected. On the outer walls of the tops of the two first guide blocks, a support seat is fixedly connected. On one side wall of the support seat, two rectangular grooves are opened. On the inner walls of one sides of the two rectangular wipes, a quenching assembly is slidably connected. The present invention can, during the process of adjusting the position of the fine grinding head, enable the third motor to work and drive the second lead screw to rotate, so that the support seat moves. When the signal intensity of the pressure sensor is the largest, the coaxiality between the fine grinding head and the automobile steering arm bracket workpiece is the highest. Furthermore, the position of the fine grinding head can be automatically adjusted through the control of the third motor by the controller.

The invention relates to a driving, braking, rotating and suspending integrated shaft module and a variable-configuration drive-by-wire chassis formed by the driving, braking, rotating and suspending integrated shaft module, the driving, braking, rotating and suspending integrated shaft module comprises a single-wheel driving module, and the single-wheel driving module comprises a profile frame and angle modules arranged on the profile frame in a mirror symmetry mode; the angle module comprises a driving module, a suspension module, a braking module and a steering system; wherein the driving module comprises a hub motor, a tire arranged on the hub motor and a battery for supplying power to the hub motor; the suspension module comprises a steering arm, an upper swing arm, a lower swing arm and a damping spring, wherein the first ends of the upper swing arm and the lower swing arm are hinged to the steering arm. The brake module comprises a brake pump, an oil pressure distributor connected with the oil output end of the brake pump, brake calipers and a brake disc. Wherein the steering system comprises a steering motor and a lower steering engine driven by the steering motor to act, and the end part of the lower steering engine is connected with the steering arm; the driving, braking, rotating and suspending integrated shaft module and the variable-configuration drive-by-wire chassis formed by the driving, braking, rotating and suspending integrated shaft module are reasonable in design and high in expansibility.

A marine drive may include a frame configured to support the marine drive with respect to the marine vessel, a cowling enclosing a portion of the frame in a cowling interior, a steering arm configured such that movement of the steering arm causes rotation of the marine drive with respect to the steering axis, and a flexible rigging connector extending from the cowling interior to a location in the marine vessel. The flexible rigging connector may extend through a guide passage in the steering arm. Additionally or alternatively, the steering arm may include a base member and a mounting member selectively movable relative to the base member to adjust the length of the steering arm.

The invention discloses a four-wheel steering mining dump truck. The four-wheel steering mining dump truck comprises a steering mechanism, a steering hydraulic system, a driving wheel assembly and a frame, the frame is provided with a front axle and a rear axle, the front axle and the rear axle are respectively provided with two driving wheel assemblies, the two driving wheel assemblies of the front axle are connected and mounted on a steering mechanism of the front axle, the two driving wheel assemblies of the rear axle are connected and mounted on a steering mechanism of the rear axle, and a steering wheel of each driving wheel assembly participates in steering; the front axle and the rear axle are respectively provided with an axle support, the frame is provided with a frame support, and the steering mechanism comprises a steering crank, a steering pull rod, a steering arm, a steering cylinder and a steering support; the steering hydraulic system is used for providing pressure oil for the steering cylinder and pushing the telescopic rod to stretch out or retract back. The invention further discloses a steering method of the four-wheel steering mining dump truck. The four-wheel steering electric vehicle has a four-wheel steering function, so that the turning radius of the whole vehicle is smaller, and the vehicle can adapt to a narrower road environment.

The invention discloses water conservancy project dam settlement real-time monitoring equipment, and belongs to the technical field of water conservancy project dam settlement monitoring. The water conservancy project dam settlement real-time monitoring equipment comprises an intelligent inspection vehicle for movably monitoring dam settlement on a base body around a dam, and the intelligent inspection vehicle is provided with a control box for receiving and transmitting signals and controlling monitoring; a moving seat is slidably mounted on the intelligent inspection vehicle, a moving frame is fixedly connected to the moving seat, and a distance sensor used for monitoring the distance from the dam surface so as to analyze the settlement condition is mounted on the moving frame; an upper steering arm is rotationally connected to the movable frame, a lower steering arm is movably connected to the lower portion of the upper steering arm, and a radar water level gauge used for monitoring the water level change in the dam so as to assist in analyzing dam settlement is fixed to the lower steering arm; the detection equipment can move on the dam to monitor the settlement conditions of different point positions, the distance sensor and the radar water level gauge can be rapidly controlled to be unfolded through the moving frame, the upper steering arm and the lower steering arm, the monitoring range is wide, and use is convenient.

A steering system for a snowmobile includes a handlebar assembly and a steering column that has an upper end coupled to the handlebar assembly. An electronic steering assist unit is coupled to the steering column between upper and lower posts of the steering column. A steering arm assembly is coupled to a lower end of the lower post. First and second tie rods respectively couple the steering arm assembly to first and second ski assemblies such that turning the handlebar assembly, together with the assistance of the electronic steering assist unit, causes the ski assemblies to pivot. A floating mounting system couples the electronic steering assist unit to forward spars of the frame assembly to prevent a torque pre-load on the electronic steering assist unit. The steering column and the electronic steering assist unit share a common axis of rotation that is positioned along a centerline of the snowmobile.

The invention relates to the technical field of mechanical arms, and particularly discloses a multi-mode switching robot tail end clamping structure which comprises a tail end module used for clamping parts with different clamping requirements; the steering arm is connected to the tail end module and used for driving the tail end module to rotate around the axial direction of the steering arm. The connecting arm is connected to the steering arm; the main arm is rotationally connected to the other end of the connecting arm and used for driving the connecting arm, the steering arm and the tail end module to rotate around the axial direction of the main arm. Wherein the tail end module is provided with a multi-form clamping mechanism, the multi-form clamping mechanism is provided with a plurality of clamping jaw modules at different positions, and any clamping jaw module can rotate to the clamping assembly position of the tail end module; and the other clamping jaw modules are stored in the tail end module. According to the robot clamping mechanism, an innovative clamping structure capable of rapidly switching multiple clamping forms is achieved, and the flexibility and the intelligent level of a robot in a complex production scene are improved.

The utility model provides a kind of high-precision visual inspection equipment.It is related to visual inspection equipment technical field.The high-precision visual inspection equipment includes body and fixedly installed shell in the top of body, camera is equipped in the shell, diaphragm is equipped below the camera, one side of the shell is rotatably installed with steering shaft one, one end of steering shaft one in the shell is fixedly installed with bearing bracket, double-end screw rod is rotatably installed in the bearing bracket, two linkage pieces are screw-mounted on the double-end screw rod, two the linkage piece mutually close one side is rotatably installed with steering shaft two, two steering shaft two are fixedly installed with steering arm, two steering arms are fixedly installed with placing disc on it.The utility model has the advantages of being capable of overturning the measured object, ensuring the comprehensive detection process.

The invention provides a kingpin steering mechanism and a steering angle module formed by the kingpin steering mechanism. The steering angle module comprises a driving system, a braking system, a suspension system and a steering system. A steering mechanism of the steering system comprises a steering arm, a steering motor, a steering motor controller and a master pin arranged at a swing arm, and a motor shaft of the steering motor is connected with the master pin through a ball cage universal joint so that the inclination angle of the master pin can be adjusted and the freedom degree of the steering mechanism can be maintained. The steering angle module is an independent steering angle module connected with wheels when being used for wire control of a chassis, and an angle module frame of the steering angle module is formed by sectional materials. The angle module frames of the two steering angle modules are spliced through the end faces, away from wheels, of the two steering angle modules, a connecting module used for adjusting the wheel tread can be inserted into the middle of the splicing area, and a single-shaft driving module is combined. The steering capacity is good, the inclination angle of the kingpin can be changed according to working requirements of different scenes, and the adaptability of the vehicle is improved.

A zero turning radius mower park brake system 100 includes a pair of steering levers (101, fig 1) attached to steering arm brackets 102 that are pivotable forward and reverse on a first axis 112 for r

The utility model provides a steering transmission structure and a vehicle, the steering transmission structure is applied to a steering system of a bestriding type vehicle and comprises a steering knuckle arranged at the top of a front fork sleeve and a steering pull rod connected between the steering knuckle and a handlebar. The steering knuckle comprises a steering knuckle base connected to the top of the front fork sleeve and a steering arm located at the front end of the steering knuckle base. In addition, the steering arm extends towards the rear upper portion of the vehicle, the steering pull rod is connected between the steering arm and the handlebar, and the length of the steering pull rod is adjustable. According to the steering transmission structure, the steering arm extends towards the rear upper portion of the vehicle, the transmission direction of force can be changed, external force and the like can be effectively buffered and converted, the force can be effectively prevented from directly acting on a handlebar, and riding comfort can be improved. Moreover, the length of the steering pull rod is adjustable, so that a rider can adjust the steering force according to own habits and the riding environment, and the riding comfort and the quality of the whole vehicle can be further improved.

The invention relates to a steering mechanism, a wolfberry picking vehicle and a control method. The steering mechanism comprises a steering wheel; the steering assembly is connected below the steering wheel and comprises an upper steering column and a lower steering column which are arranged from top to bottom; the lower end of an output shaft of the steering wheel is fixedly connected with the upper connecting end of the upper steering column, the lower connecting end of the upper steering column is connected with the upper connecting end of the lower steering column, and the lower connecting end of the lower steering column is a spline shaft. The gear assembly is connected to the lower portion of the lower steering column, and the gear assembly comprises a first gear and a second gear which are meshed in parallel; the spline shaft is inserted into the shaft hole of the first gear, so that the first gear is mounted on the lower steering column; the rotary support is of an outer gear ring structure and is meshed with the second gear in parallel; the steering arm comprises an upper supporting part and a lower connecting part, and the lower connecting part extends from one end side of the upper supporting part to the lower side; the upper supporting part is fixed below the rotary support; one end of the swing arm is connected with the lower end of the lower connecting part through a pin shaft, and the other end of the swing arm is fixedly connected with the front wheel. Therefore, the operation force of the steering wheel can be efficiently converted into the steering force of the front wheels.

A steering knuckle for increasing ground clearance of a vehicle is disclosed. The steering knuckle includes a vertical arm, an upper mount, a steering arm and a lower mount positioned at the vertical arm. The steering knuckle includes a hub positioned at the bottom of the vertical arm. The upper mount includes an upper control arm. The lower mount includes a lower control arm. The hub mounts outside of attachment points of the upper control arm and the lower control arm in order to keep the same distance between the upper mount and the lower mount, and the steering arm to maintain a factory geometry. The steering knuckle eliminates the stress on suspension components and avoids permanent modifications to the suspension components.

A zero turning radius mower park brake system includes a pair of steering levers attached to steering arm brackets that are pivotable forward and reverse on a first axis for rotating a pair of traction drive wheels in forward or reverse, and pivotable outwardly on a second axis while in a neutral position. A wire cable connects each steering arm bracket to a park brake. The wire cable retracts sufficiently to actuate the park brake when the steering arm bracket is pivoted outwardly on the second axis, but does not actuate the park brake when the steering arm bracket it pivoted forward or reverse. At least one spring provides a force urging the park brake into engagement when the steering arm pawls to park brake engaged position.

The present application relates to the technical field of hollow brick production, and particularly relates to a hollow brick stacking device, which comprises a vehicle frame, a fixed frame and a pull rope, the top surface of the vehicle frame is provided with a winding motor, the output end of the winding motor is rotationally connected with a winding reel, a rigid rope is wound on the winding reel, the top of the vehicle frame is further fixedly provided with a steering arm unit, the top end of the steering arm unit is provided with a winding wheel, the end of the rigid rope away from the winding reel is wound around the winding wheel and is fixedly connected with the fixed frame, a connecting arm is rotationally connected on the frame of the fixed frame, the lower end of the connecting arm is hingedly connected with a mounting plate, and a clamping column is vertically arranged on the bottom surface of the mounting plate.

An assembly connects a pitman arm to a slot in a crank arm of a pumping unit. A pin extends from the pitman arm disposed on a first side of the crank arm. The pin is disposed in the slot of the crank arm and has a distal end exposed on a second side of the crank arm. The distal end defines an external shouldered profile. A clamp is positioned on the distal end of the pin. The clamp has an internal shouldered profile, which is configured to engage the external shouldered profile on the pin. One or more spacers are disposed on the clamp and are configured to adjustably extend from the clamp toward the second side of the crank arm.

Disclosed in the present application are a corner module and a vehicle. The corner module comprises: a traveling unit; a steering unit, which is mounted on a vehicle frame; and a suspension unit, which comprises a steering knuckle, a steering arm, a first guide rod system and a second guide rod system, wherein the steering arm is connected to the steering unit, the steering knuckle is connected to the traveling unit, the first guide rod system movably connects the steering arm to the steering knuckle, and the second guide rod system movably connects the vehicle frame to the steering knuckle. The corner module and the vehicle of the present application can improve the structural load-bearing reliability and impact resistance reliability.

The present invention proposes a kingpin-like steering mechanism with a combined translation and rotation motion and a modular chassis composed thereof. The kingpin-like steering mechanism is a steering system of an independent driving module in a combined steering mode. The steering system includes a main steering motor and a steering tie rod connected to steering arms on both sides at both ends; mounting platforms with holes are provided at both ends of the steering tie rod, and the motor housings of the left auxiliary steering motor and the right auxiliary steering motor are rigidly connected to the mounting platforms with holes. After the motor shafts of the two motors pass through the holes of the mounting platforms with holes, they are rigidly connected to the steering arms on both sides respectively, and their motor shafts drive the steering arms to rotate relative to each other around the steering tie rod to drive the wheels to steer; the steering tie rod is connected to the steering arm to form a steering rod system; the main steering motor is connected to the steering tie rod via a transmission mechanism to transmit the steering rod system to steer the modular chassis. The present invention has high reliability, can realize large-angle steering of a multi-axle chassis and crab-like motion of a multi-axle chassis, and can adapt to complex and changeable driving environments.

Rotary steering systems are disclosed. An example steering apparatus includes an input shaft including an input gear, an output gear fixed to an output shaft, a pitman arm coupled to the output shaft, the pitman arm to couple to a drag link to turn wheels of a vehicle as the output shaft rotates, an intermediate gear set including a first intermediate gear and a second intermediate gear, the first intermediate gear in contact with the input gear, the second intermediate gear in contact with the output gear, the first intermediate gear to rotate with the input gear, the second intermediate gear to rotate with the first intermediate gear, the output gear to rotate with the second intermediate gear.

The utility model belongs to the technical field of camping cars, and particularly relates to an electric camping car which comprises a car frame body and a cloth bag, auxiliary wheels are arranged on the rear portion of the bottom of the car frame body, steering rods are arranged on the two sides of the front portion of the bottom of the car frame body, and a steering arm is arranged below the position between the two steering rods. A front wheel fork is arranged on the side, away from the steering arm, of the steering rod, a hub motor is arranged at the bottom of the front wheel fork, and a pull rod is arranged at the top of the steering arm. When the electric camping car is used, through linkage of the steering rod, the steering arm and the front wheel fork, the pull rod is pulled to drive the wheels to rotate in the advancing direction of a person, so that steering is stable and smooth, disordered swinging of the front wheel and 180-degree direction adjustment of the front wheel in the backing process are avoided, and an electric function is provided through the power bank body which is arranged in a pocket in front of the cloth pocket; the quick-release connector is used for quickly plugging and unplugging a wire, so that the battery replacement is facilitated, the endurance is improved, and the power bank main body can be detached to be used as a common power bank to increase outdoor application scenes.

The utility model relates to the technical field of steering devices, and discloses a steering device for an automobile model, which comprises a main body, wheels are sleeved on the surfaces of one sides, far away from the main body, of two supporting shafts, rotating mechanisms for rotating the wheels are arranged on the surfaces of the two supporting shafts, an adjusting plate is fixedly connected to the top of the main body, and a sliding groove is formed in one side of the adjusting plate. A first steering arm is slidably connected into the sliding groove, a steering wheel is fixedly connected to the end of the side, away from the body, of the first steering arm, the surface of the first steering arm is sleeved with a limiting plate, the limiting plate is slidably connected to the surface of the adjusting plate, and a plurality of adjusting grooves are symmetrically formed in the surface of the side, close to the sliding groove, of the adjusting plate. The multiple adjusting grooves are internally provided with restraining mechanisms used for restraining the limiting plates. Through the arrangement of the adjusting grooves, the height of the steering wheel can be adjusted, the multiple adjusting grooves are formed in one side of the adjusting plate, and after the angle of the steering wheel is adjusted, the limiting rods are inserted into new adjusting grooves.

The utility model discloses a drying device for circuit board processing, which comprises a device body, the device body comprises a base device, a rotation adjusting device and a circuit board mounting device, the rotation adjusting device is mounted at the top of the base device, and the circuit board mounting device is mounted in the rotation adjusting device; the belt rotating adjusting device comprises a first mounting plate, a second mounting plate, rotating motors and steering arms, the first mounting plate and the second mounting plate are transversely and symmetrically distributed, the rotating motors are mounted at the outer ends of the first mounting plate and the second mounting plate correspondingly, and the steering arms are mounted on the inner sides of the first mounting plate and the second mounting plate correspondingly; a connecting block is arranged at the inner end of each steering arm and is of a rectangular structure, small fixing holes are formed in the four corners of the surface of each connecting block, and the driving ends of the set of rotating motors are connected with the set of steering arms correspondingly. According to the device, the circuit board can be overturned and dried after being fixed, so that the drying comprehensiveness of the circuit board is improved.

This invention provides a chassis assembly and an electric vehicle, relating to the field of electric vehicle technology. The chassis assembly includes a chassis, wheels, half-shafts, wheel-side motors, tie rods, an arc-shaped track, and a steering drive unit. One end of the half-shaft is drive-connected to the output end of the wheel-side motor, and the other end is drive-connected to the wheel hub. The wheel-side motor can drive the wheel hub to rotate via the half-shaft. One end of the wheel's steering arm is rotatably connected to the wheel hub, and the other end is connected to one end of the tie rod. The other end of the tie rod is connected to the wheel-side motor. The arc-shaped track and the steering drive unit are both rigidly connected to the chassis. The wheel-side motor is slidably connected to the arc-shaped track, and the steering drive unit is drive-connected to the wheel-side motor. The steering drive unit can drive the wheel-side motor to slide along the arc-shaped track, so that the wheel-side motor can drive the wheel hub to steer via the tie rod and the steering arm. The chassis assembly and electric vehicle provided by this invention have a large steering angle for the wheels and are relatively lightweight at the wheels.

Front wheel suspension on a two-track vehicle, the wheel carrier (4) or pivot bearing of which is guided by at least one link (3) which is connected to the wheel carrier (4) and an axle carrier (1) or the vehicle body via a joint connection (2), where measures are provided by which, as a result of an impact of the vehicle on an obstacle (P), the front wheel suspension is deformed in such a way that, with further impact-related deformation of the vehicle's front structure, the wheel is displaced away from the vehicle interior towards the longitudinal side of the vehicle, and wherein this deformation of the front wheel suspension is triggered by the obstacle (P) or another object caused by it penetrating the front of the vehicle into the space (S) between the two articulated joints of the handlebar (3), which is bridged by the handlebar (3) and extends forward in the longitudinal direction of the vehicle, characterized in that an attachment part (5) projecting into the space (S) bridged by the steering arm (3) and extending forward is provided on or in the area of ​​the front wheel suspension, which is displaced by the impacting obstacle (P) or the other object mentioned in such a way that at least one of the two joint connections (2) is opened or destroyed and thus the steering arm (3) is exposed relative to the axle carrier (1) or the wheel carrier and as a consequence of this the wheel is displaced away from the vehicle interior towards the longitudinal side of the vehicle during further impact-induced deformation of the vehicle front structure.

Multi-link rear wheel axle for a motor vehicle for connecting a wheel carrier (4) to a vehicle body (5) with steering arms (10, 12, 14, 16, 18) arranged in an upper link plane (8) and in a lower link plane (6), wherein in the upper link plane (8) a steering arm (18) is designed as a tie rod, characterized in that in the upper link plane (8) two steering arms (14, 18) are designed as rear and front wishbones, viewed in the direction of travel, which each have articulation points (13, 15) for the wheel carrier (4) and the vehicle body (5), wherein the front wishbone (18) is designed as a tie rod and wherein a steering arm (16) designed as a longitudinal link connects the rear wishbone (14) via an articulation point (22) arranged near the wheel carrier (4) to the front wishbone (18) via an articulation point the vehicle body arranged articulation point (24), wherein in the lower control arm level (6) two steering arms (10,12) are designed as rear and front wishbones, viewed in the direction of travel, each having articulation points (13, 15) for the wheel carrier (4) and the vehicle body (5), such that the rear and front wishbones (10, 12) form a virtual pole (20) in the lower control arm plane (6), which pole lies outside the lower control arm plane (6) and behind the axis of the wheel carrier (4).

The utility model discloses a silo with automatic alignment device belongs to the silo field, has solved the problem that silo needs the artificial correction of driving direction, the technical scheme of solving this problem mainly includes the frame, and the front end of frame is equipped with the cutting platform, and the cutting platform includes the tool rest and cutting part, the front side of tool rest is equipped with the detection rod that extends to the front, in the forward direction of frame, the front end of detection rod is in the front side of cutting part, and the front end of detection rod is equipped with detection device, and detection device includes the angle sensor fixed to detection rod and the rotary part with detection rod rotation cooperation, and the angle sensor is used for obtaining the rotation angle of rotary part, and the top of rotary part is connected with the steering plate, and the steering plate includes the steering arm that extends to the both sides of detection rod, and the steering plate is elastically loaded by elastic part and makes steering arm have with detection rod keep perpendicular's rotation tendency.

An electronic power steering apparatus, according to one embodiment of the present invention, comprises: an output shaft rotated by means of a reduction gear connected to a driving motor; a ball screw having an upper end coupled to a lower end of the output shaft, and having outer circumferential screw grooves formed on an outer circumferential surface thereof to rotate in conjunction with the output shaft; a ball nut having gear teeth formed on an outer circumferential surface thereof and inner circumferential screw grooves corresponding to the outer circumferential screw grooves formed on an inner circumferential surface thereof, the ball nut being coupled to the ball screw via a ball and sliding in an axial direction; and a sector shaft, coupled to the gear teeth of the ball nut, for operating a pitman arm while rotating during the axial sliding of the ball nut.

The invention relates to the technical field of milling equipment, and particularly discloses automobile steering arm machining equipment and a machining process. The automobile steering arm machining equipment comprises a milling machine, a milling device, a clamping table and a clamping device; the supporting device comprises a supporting table arranged on the clamping table, a plurality of supporting plates used for clamping and unlocking the inner side of the automobile steering arm and an adjusting mechanism used for driving the supporting plates to slide, the adjusting mechanism is arranged on the supporting table, the supporting plates are in sliding fit with the supporting table, and the adjusting mechanism drives the supporting plates to slide along the supporting table. When the clamping device slides towards the inner side close to the automobile steering arm, the automobile steering arm can be clamped, after the clamping device is far away from the automobile steering arm, the clamping position of the automobile steering arm is milled through the milling device, and when the supporting plate slides towards the inner side far away from the automobile steering arm, the automobile steering arm is unlocked; the machining method has the effect that the machining precision of the automobile steering arm can be improved.