Electric power steering system torque sensor assembly detection device
A technology of electric power steering and torque sensor, which is applied in the direction of measuring device, optical device, instrument, etc., and can solve the problems that the torque sensor assembly 100 is scrapped and the mechanical parts cannot be replaced.
Active Publication Date: 2021-07-06
英诺菲特(北京)科技有限公司
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Problems solved by technology
[0006] In production practice, there is generally a problem of scrapping the entire torque sensor assembly 100 due to a processing problem in a certain mechanical part of the torque sensor assembly 100. The parts after drilling form a one-to-one correspondence, making it impossible to Replace defective mechanical parts
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Embodiment Construction
[0029] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
[0030] Such as Figure 1-5 As shown, an electric power steering system torque sensor assembly detection device of the present invention includes a torque sensor assembly 100, and the torque sensor assembly 100 is composed of a coaxial steering lower shaft 101, a worm gear shaft 102, a torsion bar 103, and a sliding sleeve 104 It is composed of a return spring 105, and also includes a horizontal detection platform 1 with a through hole (not shown in the figure). The positioning seat 11 corresponding to the through hole is fixed on the detection platform 1. The torque sensor assembly 100 is vertical and the worm wheel The shaft 102 is arranged downwards on the positioning seat 11, and one side of the positioning seat 11 is provided with a support 2 fixed on the detection table 1, and the support 2 is fixed with a vertical first ...
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The invention discloses a torque sensor assembly detection device for an electric power steering system, comprising a torque sensor assembly, a horizontal detection platform with a through hole, a positioning seat corresponding to the through hole is fixed on the detection platform, and the torque sensor Vertically set on the positioning seat, one side of the positioning seat is provided with a first linear motor installed on the bracket, the first linear motor is fixedly connected with the first loading motor, the first loading motor is fixedly connected with the first spline sleeve, the second A spline sleeve is adapted to the lower steering shaft; a second linear motor fixedly connected to the axial detection module and a third linear motor fixedly connected to the radial detection module are arranged on both sides of the torque sensor assembly, and the bottom of the detection table is fixed A loading mechanism connected with the worm gear shaft is provided, and a control module is also included. The invention can detect the axial and radial runout of the torque sensor assembly before the worm gear shaft and the torsion bar are drilled.
Description
technical field [0001] The invention relates to the technical field of assembly line detection, in particular to a torque sensor assembly detection device for an electric power steering system. Background technique [0002] The torque sensor assembly is one of the core components of the electric power assist system. Before the worm gear shaft and torsion bar of the torque sensor component are drilled and pinned on the assembly line, the torque sensor assembly must be tested. The worm gear shaft of the torque sensor component After drilling with the torsion bar, the two parts to be drilled must correspond one-to-one. If there is a deviation in the assembly process and exceeds the specified range, it will inevitably cause the characteristics of the sensor assembly to deteriorate, and in severe cases, the components will be completely scrapped. Therefore, before punching holes and pressing pins on the torque sensor assembly, it is necessary to detect the deviation of the assem...
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IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 马小平张曼罗春生
Owner 英诺菲特(北京)科技有限公司