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CN-224216209-U - Pretightening force frock

CN224216209UCN 224216209 UCN224216209 UCN 224216209UCN-224216209-U

Abstract

The utility model discloses a pretightening force tool, in particular to the technical field of pretightening force regulation and control of motor nuts, which comprises a base, wherein a regulation and control detection assembly is arranged on the base and comprises an electric push rod arranged at the top of the base, and the top of the electric push rod is provided with the electric push rod. The utility model realizes the mechanized adjustment and precise measurement of the pretightening force through the corresponding cooperation of each structure, and solves the problems of low precision and poor efficiency of the traditional manual operation, wherein the coaxial arrangement of the push-pull force meter and the dial indicator ensures the accuracy of the force value and the deformation measurement.

Inventors

  • DONG XINPENG
  • YING JIE

Assignees

  • 常州惠勒电机有限公司

Dates

Publication Date
20260508
Application Date
20250804

Claims (6)

  1. 1. The pretightening force tool comprises a base (1) and is characterized in that a regulation and control detection assembly is arranged on the base (1); The regulation and control detection assembly comprises an electric push rod (2) arranged at the top of the base (1), the top of the electric push rod (2) is provided with the electric push rod (2), the output end of the electric push rod (2) is provided with a limiting plate (4) for lifting a motor, and the top of the electric push rod (2) is provided with a supporting plate (3); One side of the supporting plate (3) far away from the limiting plate (4) is provided with an adjusting cylinder (6) which is abutted against the motor nut, and one end of the adjusting cylinder (6) is provided with a clamping block (7) which is clamped with the motor nut.
  2. 2. The pretightening force tool according to claim 1, wherein a screw rod transmission module (8) is arranged at one end of the top of the base (1), a push-pull force gauge (9) with adjustable positions is arranged on the screw rod transmission module (8), and a push rod (10) for pressure detection is arranged on the push-pull force gauge (9).
  3. 3. The pretightening force tool according to claim 2, wherein the ejector rod (10) and the adjusting cylinder (6) are positioned on the same axial direction, and one end of the ejector rod (10) penetrates through the limiting plate (4).
  4. 4. The pretightening force tool according to claim 1, wherein a slide rail (13) is arranged on one side of the electric push rod (2), a slide block (11) with an adjustable position is arranged on the slide rail (13), and a dial indicator (12) is arranged on the slide block (11).
  5. 5. The pretightening force tool of claim 4, wherein the dial indicator (12), the push-pull force gauge (9), the ejector rod (10) and the adjusting cylinder (6) are all positioned on the same axial direction, and a dislocation opening is formed in the outer side of the adjusting cylinder (6).
  6. 6. The pretightening force tool according to claim 1, wherein two abutting wheels (5) are arranged on one side of the limiting plate (4) facing the adjusting cylinder (6), and are rotatably connected with the limiting plate (4).

Description

Pretightening force frock Technical Field The utility model relates to the technical field of motor nut pretightening force regulation and control, in particular to a pretightening force tool. Background In the manufacturing and assembling processes of the motor, the pre-tightening force refers to initial tightening force applied to a connecting part in a specific mode (such as screwing a nut) in the motor part connection process, the pre-tightening force has important influence on the performance and reliability of the motor, and the proper pre-tightening force can ensure the tight connection between the motor parts and reduce looseness and relative displacement, so that vibration and noise are reduced, and the running stability and precision of the motor are improved. The traditional motor pretightening force adjusting method mainly depends on experience judgment and manual operation. Due to the lack of an accurate measuring tool, the deformation condition of the motor under different pretightening forces is difficult to accurately know, whether the pretightening force is proper or not cannot be accurately judged, so that pretightening force control accuracy is low, meanwhile, the process of manually adjusting the pretightening nut is tedious and difficult to realize accurate control, an effective feedback mechanism is lacking, operators are difficult to determine whether the adjusted pretightening force reaches an ideal state or not, multiple attempts and adjustment are often needed, time is wasted, labor is consumed, and therefore the pretightening force adjusting tool for the motor is provided. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a pretightening force tool, which aims to solve the problems in the background art. The utility model provides a pretightening force tool, which comprises a base, wherein a regulation and control detection assembly is arranged on the base; The regulation and control detection assembly comprises an electric push rod arranged at the top of the base, the top of the electric push rod is provided with the electric push rod, the output end of the electric push rod is provided with a limiting plate for lifting the motor, and the top of the electric push rod is provided with a supporting plate; One side that limiting plate was kept away from to the layer board is provided with the adjustment cylinder of contradicting on motor nut, the one end of adjustment cylinder is provided with the fixture block with motor nut looks joint, the top one end of base is provided with screw drive module, be provided with the adjustable push-pull force gauge in position on the screw drive module, and be provided with the ejector pin that is used for exerting pressure and detect on the push-pull force gauge, the ejector pin is in same axial with adjustment cylinder, and the one end of ejector pin runs through the limiting plate. Optionally, in one possible implementation manner, a sliding rail is provided on one side of the electric push rod, a sliding block with an adjustable position is provided on the sliding rail, a dial indicator is provided on the sliding block, the dial indicator, the push-pull force gauge, the push rod and the adjusting cylinder are all in the same axial direction, a dislocation port is provided on the outer side of the adjusting cylinder, and two contact resisting wheels are provided on one side of the limiting plate facing the adjusting cylinder and are in rotational connection with the limiting plate; the utility model has the technical effects and advantages that: Through the corresponding matching use of each structure, the mechanical adjustment and the precise measurement of the pretightening force are realized, and the problems of low precision and poor efficiency of the traditional manual operation are solved, wherein the coaxial arrangement of the push-pull force meter and the dial indicator ensures the accuracy of the force value and the deformation measurement; The screw rod transmission module drives the electric push rod, so that the screw rod transmission module can adapt to detection requirements of motors with different specifications, friction interference in the adjusting process is reduced due to rolling contact of the contact wheel, multiple attempts are not needed for integral operation, and the efficiency and the accuracy of pretightening force regulation are greatly improved. Drawings In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments will be briefly described below, and it is obvious that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art. Furthermore, the drawings in the following description may be regarded as schematic diagrams, not l