Torsion detection device for tie rod ball head

Abstract

The utility model provides a pull rod ball head's torsion detection device belongs to mechanical technical field. It solved how to detect the problem of whether the required torsion of ball pin rod swing meets the requirement. The utility model discloses a pull rod ball head's torsion detection device, including frame, carousel and base, and the torsion detection device of pull rod ball head still includes motor, the torque sensor of connection on motor, the swing lever of rod state and the horizontal setting of board state pressing plate, and the frame is fixed with the pressing drive part of driving the pressing plate to go up and down, and the through -hole that the recess position corresponds is opened to the vertical direction along in the pressing plate, and the output shaft of motor is horizontal setting, and the swing lever is vertical setting in the recess just above, and the lower end of swing lever sets up hole, and the output shaft of motor is fixed to the swing lever upper end, and the frame still is fixed with the lifting drive part of driving motor lifting. The utility model discloses a pull rod ball head's torsion detection device can effectively detect whether the workpiece torsion meets the requirement.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a torque detection device for tie rod ball joints. Background Technology

[0002] The tie rod assembly is a group of components on a car chassis, consisting of a lateral tie rod sub-assembly, a longitudinal tie rod sub-assembly, and upper and lower suspension ball joints. Each sub-assembly is assembled with the tie rod ball joints, and its main function is to transmit and execute steering force, affecting the directional angle changes of the front wheels, thereby enabling the car to drive correctly on the road.

[0003] For example, a ball joint assembly for an automotive tie rod has been designed and a Chinese patent has been applied for, with application number 201020558118.3 and publication number CN201794912U. This automotive tie rod ball joint assembly consists of a cover, ball seat, ball shell, lower flat spring, dust cover, upper spring, ball pin, hexagonal slotted thin nut, and cotter pin. A ball seat is installed inside the ball shell, a cover is installed at the lower opening of the ball shell, and a dust cover is installed at the upper opening of the ball shell. The lower end of the ball pin has a ball head, and the upper end has a ball pin rod. The ball head is positioned on the ball seat, and the ball pin rod is positioned in a through hole on the dust cover. An upper spring is installed on the upper end of the dust cover. A hexagonal slotted thin nut is threaded to the upper end of the ball pin rod, and a cotter pin is provided on the upper side of the hexagonal slotted thin nut, connecting to the ball pin rod. A ball shell shaft is horizontally arranged on the side of the ball shell, and the ball shell and the ball shell shaft are connected as a single unit.

[0004] The ball joint at the upper end of the ball joint can swing relative to the ball seat, and the amount of torque required during this swing is an important parameter of the tie rod head. Therefore, a device is needed to detect the amount of torque during the swing of the ball joint to determine whether the tie rod head meets the requirements after assembly. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a torque detection device for the ball joint of a tie rod, thus solving the problem of how to detect whether the torque required for the ball joint to swing meets the requirements.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A torque detection device for a tie rod ball joint includes a frame, a horizontally arranged turntable, and a base fixed on the turntable. The top of the base has a notch for placing a workpiece. The device further includes a motor, a torque sensor connected to the motor, a display electrically connected to the torque sensor, a rod-shaped rocker arm, and a horizontally arranged plate-shaped pressure plate. The pressure plate is positioned above the base. A clamping drive component capable of driving the pressure plate to rise and fall is fixed on the frame. A through hole is vertically oriented on the pressure plate corresponding to the notch. The output shaft of the motor is horizontally oriented. The rocker arm is vertically oriented directly above the notch. A fitting hole is provided at the lower end of the rocker arm, and the upper end of the rocker arm is fixed to the output shaft of the motor. A lifting drive component capable of driving the motor to rise and fall is also fixed on the frame.

[0008] In use, the torque detection device for this tie rod ball joint places the workpiece, i.e., the finished or semi-finished tie rod ball joint with the ball pin already installed, into the recess at the top of the base from top to bottom to position the workpiece. The clamping drive moves the pressure plate downward, pressing the outer shell of the tie rod ball joint firmly against the base from top to bottom, thus fixing the outer shell of the tie rod ball joint. At this time, the ball pin extending upward from the outer shell passes through the through hole in the pressure plate and exits from the upper side of the pressure plate. The lifting drive drives the motor to descend, causing the lower end of the swing arm, which is vertically connected to the motor output shaft, to be fitted onto the outside of the ball pin through the sleeve hole and then stop descending. The motor starts working, driving the swing arm to swing around the axis of the output shaft, thereby causing the ball pin, which passes through the sleeve hole at the lower end of the swing arm, to swing relative to the outer shell. At this time, by comparing the motor torque value detected by the torque sensor displayed on the display with the torque value corresponding to a qualified product, it can be determined whether the torque required for the ball pin to swing meets the requirements based on whether it falls within the error range. In order for the ball pin to swing smoothly, the diameter of the through hole and the diameter of the sleeve hole should be larger than the diameter of the ball pin to allow space for its swing.

[0009] The torque detection device for this tie rod ball head can detect whether the torque required for the ball pin to swing meets the requirements simply by pressing down the pressure plate and driving the swing arm to swing with the motor. The overall structure is relatively simple.

[0010] In the aforementioned torque testing device for the tie rod ball joint, the through hole is an oblong hole. The oblong hole design facilitates the pressure plate pressing the workpiece while also providing clearance for the ball pin's swing.

[0011] In the aforementioned torque detection device for the tie rod ball joint, a vertically arranged rail is fixed on the frame, and a slide table is slidably connected to the rail. The motor is fixed on the slide table, and the lifting drive component is a cylinder, with the outer end of the cylinder's piston rod fixed to the slide table. The lifting and lowering of the motor and the swing rod are controlled by the cooperation of the rail and the slide table, resulting in a more stable lifting process.

[0012] In the aforementioned torque detection device for the tie rod ball joint, the device further includes two vertically arranged rod-shaped clamping rods. The lower ends of both clamping rods are fixed to the pressure plate, and the upper ends of both clamping rods pass through the slide table and are connected to the output end of the clamping drive component. The clamping rods serve as transmission components connecting the clamping drive component and the pressure plate. Passing the clamping rods through the slide table provides guidance for the lifting and lowering of the pressure plate, while also ensuring the consistency of the through hole and the swing arm position.

[0013] In the aforementioned torque detection device for the tie rod ball joint, a linear guide rail, a slider slidably connected to the linear guide rail, and a V-block fixed to the upper side of the slider are also provided on the upper side of the turntable. The linear guide rail is horizontally fixed on the upper side of the turntable, and the slider can move back and forth along the linear guide rail to approach or move away from the base. The V-block, in conjunction with the base, provides two-point support for the elongated workpiece, ensuring the stability of the support. The linear guide rail and slider allow adjustment of the support position of the V-block to meet the support requirements of workpieces of various specifications.

[0014] Compared with existing technologies, this torque detection device for the tie rod ball head can detect whether the torque required for the ball pin to swing meets the requirements simply by pressing down the pressure plate and driving the swing arm to swing with the motor. The overall structure is relatively simple. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the torque detection device for the tie rod ball head.

[0016] Figure 2 This is a schematic diagram of the pendulum rod.

[0017] In the diagram, 1 is the frame; 2 is the turntable; 3 is the base; 3a is the notch; 4 is the motor; 5 is the swing arm; 5a is the mounting hole; 6 is the pressure plate; 6a is the through hole; 7 is the clamping drive component; 8 is the lifting drive component; 9 is the track; 10 is the slide table; 11 is the clamping rod; 12 is the linear guide rail; 13 is the slider; and 14 is the V-block. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 and Figure 2 As shown, the torque detection device for this tie rod ball head includes a horizontally arranged turntable 2, a frame 1 arranged outside the turntable 2 and adjacent to the turntable 2, and a base 3 fixed on the turntable 2 at an eccentric position. The top of the base 3 is provided with a notch 3a for placing the workpiece.

[0020] The torque detection device for the tie rod ball joint also includes a motor 4, a torque sensor connected to the motor 4, a display electrically connected to the torque sensor, a rod-shaped swing arm 5, and a horizontally arranged rectangular plate-shaped pressure plate 6. The pressure plate 6 is positioned above the base 3, and a clamping drive 7 that can drive the pressure plate 6 to rise and fall is fixed on the frame 1. A through hole 6a is vertically opened on the pressure plate 6 at a position corresponding to the notch 3a. The output shaft of the motor 4 is horizontally arranged, and the swing arm 5 is vertically arranged directly above the notch 3a. A recessed fitting hole 5a is opened at the lower end of the swing arm 5, and the upper end of the swing arm 5 is vertically fixed to the output shaft of the motor 4. A lifting drive 8 that can drive the motor 4 to rise and fall is also fixed on the frame 1. In this embodiment, the torque detection device for the tie rod ball joint can be part of an assembly machine, and the display can be directly connected to the main control touch screen on the assembly machine controller; the through hole 6a is an oblong hole, and the length direction of the oblong hole is perpendicular to the axis of the output shaft of the motor 4.

[0021] Specifically, a vertically arranged rail 9 is fixed on the frame 1, and a slide table 10 is slidably connected to the rail 9. The motor 4 is fixed to the lower side of the slide table 10. The lifting drive component 8 is a cylinder, and the outer end of the piston rod of the cylinder is fixed to the upper side of the slide table 10. A connecting hole is provided through the upper side of the swing arm 5, and the output shaft of the motor 4 passes through the connecting hole and the two are fixed together by a pin.

[0022] The torque detection device for the tie rod ball head also includes two vertically arranged cylindrical clamping rods 11 and a horizontally arranged rectangular plate-shaped connecting plate. The lower ends of the two clamping rods 11 are fixed to the upper sides of both ends of the pressure plate 6 in the length direction. The upper ends of the two clamping rods 11 pass through the slide table 10 and are fixed to the connecting plate. The clamping drive 7 is a cylinder, and the piston rod is fixed downward on the frame 1. The lower end of the piston rod of the clamping drive 7 is fixed to the connecting plate.

[0023] The upper side of the turntable 2 is also provided with a linear guide rail 12, a slider 13 slidably connected to the linear guide rail 12, and a V-block 14 fixed on the upper side of the slider 13. The linear guide rail 12 is horizontally fixed at an eccentric position on the upper side of the turntable 2, and the slider 13 can move back and forth along the linear guide rail 12 to approach or move away from the base 3. A notch is opened through the recess 3a of the base 3, directly opposite the V-block 14.

[0024] When using this torque detection device for the ball joint of the tie rod, the ball pin of the workpiece is placed from top to bottom in the notch 3a at the top of the base 3 with the ball pin facing upwards. The round rod structure in the middle of the long strip workpiece protrudes from the notch and is placed on the V-shaped opening at the top of the V-block 14 to achieve the positioning of the workpiece.

[0025] The clamping drive 7 drives the pressure plate 6 to move downwards, and the pressure plate 6 presses the outer shell of the tie rod ball head tightly onto the base 3 from top to bottom, thus fixing the outer shell of the tie rod ball head. At this time, the ball pin extending upwards from the outer shell passes through the through hole 6a on the pressure plate 6 and exits from the upper side of the pressure plate 6.

[0026] The lifting drive component 8 drives the slide table 10 and motor 4 to descend, causing the lower end of the swing arm 5 to stop descending after being sleeved on the outside of the ball pin. The motor 4 starts working, driving the swing arm 5 to swing around the axis of the output shaft, which in turn causes the ball pin, which passes through the sleeve hole 5a at the lower end of the swing arm 5, to swing relative to the outer shell.

[0027] At this point, the torque value of motor 4 detected by the torque sensor displayed on the monitor is compared with the torque value corresponding to the qualified product. Whether it falls within the appropriate error range can be used to determine whether the torque required for the ball pin to swing meets the requirements.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A torque detection device for a tie rod ball joint, comprising a frame (1), a horizontally arranged turntable (2), and a base (3) fixed on the turntable (2), wherein the top of the base (3) is provided with a notch (3a) for placing a workpiece, characterized in that, The torque detection device for the tie rod ball head also includes a motor (4), a torque sensor connected to the motor (4), a display electrically connected to the torque sensor, a rod-shaped swing arm (5), and a horizontally arranged plate-shaped pressure plate (6). The pressure plate (6) is arranged above the base (3). A pressing drive (7) that can drive the pressure plate (6) to rise and fall is fixed on the frame (1). A through hole (6a) is opened vertically on the pressure plate (6) at the position corresponding to the notch (3a). The output shaft of the motor (4) is arranged horizontally. The swing arm (5) is arranged vertically directly above the notch (3a). A sleeve hole (5a) is opened at the lower end of the swing arm (5). The upper end of the swing arm (5) is fixed to the output shaft of the motor (4). A lifting drive (8) that can drive the motor (4) to rise and fall is also fixed on the frame (1).

2. The torque detection device for the tie rod ball head according to claim 1, characterized in that, The through hole (6a) is a waist-shaped hole.

3. The torque detection device for the tie rod ball head according to claim 1 or 2, characterized in that, The frame (1) is fixed with a vertically arranged rail (9), and a slide table (10) is slidably connected on the rail (9). The motor (4) is fixed on the slide table (10). The lifting drive component (8) is a cylinder, and the outer end of the piston rod of the cylinder is fixed to the slide table (10).

4. The torque detection device for the tie rod ball head according to claim 3, characterized in that, The torque detection device for the tie rod ball head also includes two vertically arranged rod-shaped clamping rods (11). The lower ends of the two clamping rods (11) are fixed to the pressure plate (6), and the upper ends of the two clamping rods (11) pass through the slide (10) and are connected to the output end of the clamping drive (7).

5. The torque detection device for the tie rod ball head according to claim 1 or 2, characterized in that, The turntable (2) is also provided with a linear guide rail (12), a slider (13) slidably connected to the linear guide rail (12), and a V-shaped block (14) fixed on the upper side of the slider (13). The linear guide rail (12) is horizontally fixed on the upper side of the turntable (2), and the slider (13) can move back and forth along the linear guide rail (12) to get closer to or away from the base (3).

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