WO2023065737A1 - 一种用于差速器总成的检测系统及检测方法 - Google Patents

一种用于差速器总成的检测系统及检测方法 Download PDF

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Publication number
WO2023065737A1
WO2023065737A1 PCT/CN2022/106076 CN2022106076W WO2023065737A1 WO 2023065737 A1 WO2023065737 A1 WO 2023065737A1 CN 2022106076 W CN2022106076 W CN 2022106076W WO 2023065737 A1 WO2023065737 A1 WO 2023065737A1
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Prior art keywords
assembly
differential
detection
detection system
pressure sensor
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PCT/CN2022/106076
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English (en)
French (fr)
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赵文楚
焦继松
王小乾
王小箭
戴辉
张石
侯之奕
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江苏太平洋精锻科技股份有限公司
江苏太平洋齿轮传动有限公司
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Publication of WO2023065737A1 publication Critical patent/WO2023065737A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness

Definitions

  • the invention belongs to the technical field of a differential gear detection device, and in particular relates to a detection system and a detection method for a differential gear assembly.
  • the differential is a kind of power transmission component arranged on the rear axle or integrated in the gearbox. Its quality is directly related to the safety and overall performance of the vehicle, and the assembly quality of the differential is a measure of its quality. Therefore, the detection and control of assembly quality has become a factor of great concern to various OEMs and component suppliers.
  • the purpose of the present invention is to provide a detection system and detection method for differential gear assembly, which can improve the differential gear measurement accuracy and greatly improve the differential gear assembly detection efficiency , effectively improving the level of assembly quality inspection and control, and avoiding quality loss caused by human misjudgment.
  • a detection system for a differential gear assembly comprising a base and a top plate, a fixing assembly for fixing the differential case is arranged on the base, a pressure sensor is fixed on the underside of the top plate, the The pressure sensor is connected with a lifting assembly, the lifting end of the lifting assembly is connected with a chuck, the chuck is connected with a side gear a in the differential, and can drive it to move, and the fixed assembly is connected Another side gear b in the differential, and its position is fixed; it also includes a displacement detection component and a CPU processor, and the CPU processor acquires the pressure value detected by the pressure sensor in real time, and based on the The pressure value controls the displacement detection component to detect the distance that the collet moves along the vertical direction.
  • the fixing assembly includes a sleeve and a splined mandrel; the lower end of the sleeve is connected to the base, the upper end is provided with a support plate, and the outer side of the support plate is detachably fixed to the differential case connect;
  • One end of the splined mandrel is integrally formed with a mounting post, the diameter of which is larger than that of the splined mandrel, and is detachably and fixedly connected to the inside of the sleeve; the splined mandrel is far away from the One end of the mounting post passes through the differential case and is fixedly connected with the side gear b.
  • the lifting assembly includes an outer casing and an inner telescopic rod; the upper end of the outer casing is connected to the pressure sensor, and a telescopic opening is opened at the lower end of the outer casing; one end of the inner telescopic rod passes through the The telescopic opening is located in the outer sleeve, and the side wall in the outer sleeve is provided with a number of motor pulleys; the inner telescopic rod can slide at a constant speed in the vertical direction in the outer sleeve through the motor pulleys; the inner The other end of the telescopic rod is connected with the chuck.
  • the lower end of the inner telescopic rod is provided with a T-shaped slot
  • the chuck includes two sets of clamping rods arranged at intervals, one end of the clamping rod is slidably connected in the T-shaped slot, and the other end is provided with a A clamping block, the clamping block can cooperate with the side shaft gear.
  • the displacement detection assembly includes a vertically arranged support rod, the support rod is connected to the top plate, and a displacement sensor is arranged on the support rod, and the displacement sensor detects whether the collet or the inner telescopic rod moves along the vertical direction. The amount of movement in the vertical direction.
  • the spline mandrel is fixedly connected to the side gear b through a spline.
  • the mounting post and the sleeve are fixed by interference fit or pins.
  • cylindrical bosses are provided on the outer side of the support plate; several threaded holes are opened on the differential case, and the cylindrical bosses are connected with the threaded holes one by one.
  • a detection method for a differential gear assembly comprising the following steps:
  • Step 1 When the lifting component is set to control the chuck to be stationary or move at a constant speed, the pressure value of the pressure sensor is zero;
  • Step 2 fixing the differential on the fixed assembly, and installing the collet on the inner side of the side gear a, so that the collet moves upward for a certain distance to drive the side gear a to move;
  • Step 3 controlling the lifting assembly to move, so as to drive the chuck to move upward at a constant speed
  • Step 4 when the pressure sensor is subjected to the first predetermined force, it sends an electrical signal to the CPU processor, and the CPU processor controls the displacement sensor to record the first set of data;
  • Step 5 when the pressure sensor is subjected to a second predetermined force, it sends an electrical signal to the CPU processor, and the CPU processor controls the displacement sensor to record a second set of data;
  • Step 6 based on the first set of data and the second set of data, calculate the amount of axial play of the differential assembly; wherein, the first predetermined force is greater than 0 and less than that of the side gear a Gravity, the second predetermined force is greater than the gravity of the side gear a.
  • the invention provides a detection system and a detection method for a differential assembly.
  • the differential housing and the side gear b are fixed by a fixed component, and the side gear is automatically controlled by a lifting component at the upper end.
  • a. Lifting and lowering, the pressure value received by the pressure sensor is used as the detection signal during the lifting process, and the axial displacement of the side gear is recorded by the detection component.
  • the detection system and detection method have a high degree of automation and detection efficiency, strong reliability of detection results, more abundant detection items, and low requirements for operator skills.
  • the system has low production cost, high degree of automation, and high measurement accuracy, which greatly improves the detection efficiency of differential gear assembly, effectively improves the level of assembly quality detection and control, and avoids quality loss caused by human misjudgment.
  • Fig. 1 is a kind of structural representation of the detection system that is used for differential gear assembly of the present invention
  • Fig. 2 is a schematic diagram of a protruding inner telescopic rod structure in a detection system for a differential assembly of the present invention.
  • 300 fixed assembly; 310, sleeve; 320, spline mandrel; 321, mounting column; 330, support plate;
  • Displacement detection component 710. Support rod; 720. Displacement sensor;
  • the present invention provides a detection system for a differential gear assembly, referring to Fig. 1-Fig. 2, comprising a base 100 and a top plate 200, and a fixing assembly for fixing the differential case 830 is arranged on the base 100 300, a pressure sensor 400 is fixed on the lower side of the top plate 200, a lifting assembly 500 is connected to the pressure sensor 400, and a chuck 600 is connected to the lifting end of the lifting assembly 500, and the chuck 600 is connected to a side gear a810 in the differential, And can drive it to move, and the fixing component 300 is connected to another half shaft gear b820 in the differential, and makes its position fixed; It also includes a displacement detection component 700 and a CPU processor, and the CPU processor obtains the pressure sensor 400 detected in real time. The pressure value, and based on the pressure value, the displacement detection component 700 is controlled to detect the distance that the collet 600 moves along the vertical direction.
  • the fixing assembly 300 includes a sleeve 310 and a splined mandrel 320; the lower end of the sleeve 310 is connected to the base 100, and the upper end is provided with a support plate 330, and the outer side of the support plate 330 is detachably and fixedly connected to the differential case 830; the spline core One end of the shaft 320 is integrally formed with a mounting column 321, the diameter of which is larger than the diameter of the spline mandrel 320, and is detachably and fixedly connected with the sleeve 310; the end of the spline mandrel 320 is far away from the installation column 321 It passes through the differential case 830 and is fixedly connected with the side gear b820.
  • the spline mandrel 320 is fixedly connected to the side gear b820 through splines.
  • a number of cylindrical bosses are provided on the outside of the support plate 330; a number of threaded holes are opened on the differential case 830, and the cylindrical bosses are connected with the threaded holes one by one.
  • the diameter of the cylindrical boss is the same as the minor diameter of the threaded hole.
  • the support plate 330 and the differential case 830 can also be installed and fixed in other ways.
  • the lifting assembly 500 includes an outer sleeve 510 and an inner telescopic rod 520; the upper end of the outer sleeve 510 is connected to the pressure sensor 400, and the lower end of the outer sleeve 510 is provided with a telescopic port 511; one end of the inner telescopic rod 520 passes through the telescopic port 511 and is located on the outer sleeve 510, and a number of motor pulleys 530 are arranged on the side wall in the outer casing 510; the inner telescopic rod 520 can slide at a constant speed in the vertical direction in the outer casing 510 through the motor pulley 530; the other end of the inner telescopic rod 520 is connected to the collet 600.
  • the lower end of the inner telescopic rod 520 is provided with a T-shaped slot 521.
  • the chuck 600 includes two sets of clamping rods 610 arranged at intervals. One end of the clamping rod 610 is slidably connected in the T-shaped slot 521, and the other end is provided with a clamping block 620.
  • the clamping block 620 is located on a side relatively away from the clamping rod 610 .
  • the clamping block 620 can cooperate with the side gear a810.
  • the specific connection position may be the end face of the side gear a810 or the keyway, which is not limited here.
  • the displacement detection assembly 700 includes a vertical support rod 710 connected to the top plate 200.
  • the support rod 710 is provided with a displacement sensor 720.
  • the displacement sensor 720 detects the movement of the collet 600 or the inner telescopic rod 520 in the vertical direction.
  • a detection method for a differential gear assembly 800 comprising the following steps:
  • Step 1 setting the lifting assembly 500 to control the pressure value of the pressure sensor 400 to be zero when the chuck 600 is stationary or moving at a constant speed.
  • Step 2 fix the differential on the fixing assembly 300, and install the collet 600 inside the side gear a810, and move the collet 600 upwards for a certain distance to drive the side gear a810 to move.
  • Step 3 controlling the movement of the lifting assembly 500 to drive the chuck 600 to move upward at a constant speed.
  • Step 4 when the pressure sensor 400 receives the first predetermined force, it sends an electric signal to the CPU processor, and the CPU processor controls the displacement sensor 720 to record the first set of data.
  • Step 5 when the pressure sensor 400 receives the second predetermined force, it sends an electric signal to the CPU processor, and the CPU processor controls the displacement sensor 720 to record the second set of data.
  • Step 6 based on the first set of data and the second set of data, calculate the amount of axial play of the differential gear assembly 800 .
  • the first predetermined force is greater than 0 and smaller than the gravity of the side gear a810
  • the second predetermined force is greater than the gravity of the side gear a810.
  • the absolute value of the difference between the first set of data and the second set of data is calculated as the axial displacement of the differential gear assembly 800 .
  • the present invention provides a detection system and detection method for the differential assembly 800.
  • the differential housing 830 and the side gear b820 are fixed by the fixed assembly 300, and the lifting assembly 500 at the upper end automatically
  • the side gear a810 is controlled to go up and down, and the pressure value received by the pressure sensor 400 is used as a detection signal during the up and down process, and the axial displacement of the side gear is recorded by the detection component.
  • this system for detection it is only necessary to install the differential gear to be tested, and the detection work can be completed automatically after installation.
  • the detection system and detection method have a high degree of automation and detection efficiency, strong reliability of detection results, more abundant detection items, and low requirements for operator skills.
  • this system has low production cost, high degree of automation, and high measurement accuracy, which greatly improves the detection efficiency of differential gear assembly 800, effectively improves the assembly quality detection and control level, and avoids the quality loss caused by human misjudgment.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection.
  • Connection, or integral connection may be mechanical connection, electrical connection, direct connection, or indirect connection through an intermediary, or internal communication between two components.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种用于差速器总成(800)的检测系统及检测方法，属于差速器检测装置技术领域，检测系统包括底座(100)和顶板(200)，在底座(100)上设置有用于对差速器壳体(830)进行固定的固定组件(300)，顶板(200)下侧固定有压力传感器(400)，压力传感器(400)上连接有升降组件(500)，升降组件(500)的升降端连接有夹头(600)，夹头(600)与差速器内的一个半轴齿轮a(810)连接，且可带动其移动，固定组件(300)连接差速器内的另一个半轴齿轮b(820)，且使其位置固定；还包括位移检测组件(700)和CPU处理器，CPU处理器实时获取压力传感器(400)所检测的压力值，并控制位移检测组件(700)对夹头(600)沿竖直方向移动的距离进行检测。能够提高差速器测量精度，大大提高了差速器总成(800)检测效率，有效提高了装配质量检测和控制水平，避免了因人为误判造成的质量损失。

Description

一种用于差速器总成的检测系统及检测方法 技术领域
本发明属于差速器检测装置技术领域，具体涉及一种用于差速器总成的检测系统及检测方法。
背景技术
差速器是布置在后桥或者集成于变速箱中的一类传递动力的部件，其质量优劣直接关系到车辆安全性和整体性能，而差速器总成装配质量又是衡量其质量的关键一环，所以，对装配质量的检测和控制成为各个主机厂和零部件供应商十分关心的一个因素。
差速器半轴齿轮轴向窜动量是评价差速器总成装配质量的一个重要指标，目前，对此项数据的检测多数厂家还停留在人工测量阶段，不仅耗时耗力，而且人的干扰因素直接影响了测量结果的可靠性，造成误判；测量数据收集困难，难以使用SPC进行质量监控。
发明内容
针对上述现有技术中存在的问题，本发明的目的在于提供一种用于差速器总成的检测系统及检测方法，能够提高差速器测量精度，大大提高了差速器总成检测效率，有效提高了装配质量检测和控制水平，避免了因人为误判造成的质量损失。
为了实现上述发明目的，本发明提供的一个技术方案如下：
一种用于差速器总成的检测系统,包括底座和顶板，在所述底座上设置有用于对差速器壳体进行固定的固定组件，所述顶板下侧固定有压力传感器，所述压力传感器上连接有升降组件，所述升降组件的升降端连接有夹头，所述夹头与所述差速器内的一个半轴齿轮a连接，且可带动其移动，所述固定组件连接所述差速器内的另一个半轴齿轮b，且使其位置固定；还包括位移检测组件和CPU处理器，所述CPU处理器实时获取所述压力传感器所检测的压力值，并基于所述压力值控制所述位移检测组件对所述夹头沿竖直方向移动的距离进行检测。
优选的，所述固定组件包括套筒和花键芯轴；所述套筒下端与所述底座连接，上端设置有支撑盘，所述支撑盘的外侧与所述差速器壳体可拆卸固定连接；
所述花键芯轴的一端一体成型有安装柱，所述安装柱直径大于所述花键芯轴的直径，且与所述套筒内可拆卸固定连接；所述花键芯轴远离所述安装柱的一端穿过所述差速器壳体，且与所述半轴齿轮b固定连接。
优选的，所述升降组件包括外套管和内伸缩杆；所述外套管的上端与所述压力传感器连接，所述外套管的下端开设有伸缩口；所述内伸缩杆的一端穿过所述伸缩口，位于所述外套管内，且于所述外套管内的侧壁设置有若干电机滑轮；所述内伸缩杆通过所述电机滑轮可在所述外套管内沿竖直方向匀速滑动；所述内伸缩杆的另一端连接所述夹头。
优选的，所述内伸缩杆的下端开设有T形槽，所述夹头包括间隔设置两组夹持杆，所述夹持杆的一端滑动连接于所述T形槽内，另一端设置有夹持块，所述夹持块可与所述半轴齿轮配合。
优选的，所述位移检测组件包括竖直设置的支撑杆，所述支撑杆连接所述顶板，所述支撑杆上设置有位移传感器，所述位移传感器检测所述夹头或内伸缩杆沿竖直方向的移动量。
优选的，所述花键芯轴与所述半轴齿轮b通过花键固定连接。
优选的，所述安装柱和所述套筒之间过盈配合或销钉固定。
优选的，所述支撑盘的外侧设置有若干圆柱凸台；所述差速器壳体上开设有若干螺纹孔，所述圆柱凸台与所述螺纹孔一一配合连接。
一种用于差速器总成的检测方法,包括以下步骤：
步骤一，设置升降组件控制夹头静止或匀速移动时，压力传感器受到的压力值为零；
步骤二，将差速器固定于固定组件上，且将夹头安装于半轴齿轮a内侧，使夹头向上移动一段距离后可带动所述半轴齿轮a移动；
步骤三，控制所述升降组件移动，以带动所述夹头匀速向上移动；
步骤四，所述压力传感器受到第一预定力时，向CPU处理器发出电信号，所述CPU处理器控制位移传感器记录第一组数据；
步骤五，所述压力传感器受到第二预定力时，向所述CPU处理器发出电信号，所述CPU处理器控制所述位移传感器记录第二组数据；
步骤六，基于所述第一组数据和第二组数据，计算所述差速器总成的轴向窜动量；其中，所述第一预定力大于0，且小于所述半轴齿轮a的重力，所述第二预定力大于所述半轴齿轮a的重力。
本发明提供了一种用于差速器总成的检测系统及其检测方法，通过设置的固定组件对差速器壳体和半轴齿轮b进行固定，通过上端的升降组件自动控制半轴齿轮a进行升降，在升降过程中通过压力传感器受到的压力值作为检测信号，通过检测组件记录半轴齿轮的轴向窜动量。在使用该系统进行检测时，只需要将待检测的差速器进行安装，安装后即可自动完成检测工作。与传统方式相比，该检测系统和检测方法自动化程度和检测效率高，检测结果可靠性强，且检测项目更为丰富，对操作工技能要求很低。其次，本系统制作成本低、自动化程度高，测量精度高，大大提高了差速器总成检测效率，有效提高了装配质量检测和控制水平，避免了因人为误判造成的质量损失。
附图说明
图1为本发明一种用于差速器总成的检测系统的结构示意图；
图2为本发明一种用于差速器总成的检测系统中突出内伸缩杆结构的示意图。
图中附图标记：
100、底座；
200、顶板；
300、固定组件；310、套筒；320、花键芯轴；321、安装柱；330、支撑盘；
400、压力传感器；
500、升降组件；510、外套管；511、伸缩口；520、内伸缩杆；521、T形槽；530、电机滑轮；
600、夹头；610、夹持杆；620、夹持块；
700、位移检测组件；710、支撑杆；720、位移传感器；
800、差速器总成；810、半轴齿轮a；820、半轴齿轮b；830、差速器壳体。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，下面结合附图和具体实施例对本发明做进一步说明。应当理解，此处所描述的具体实施例仅用以 解释本发明，并不用于限定本发明。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例
本发明提供了一种用于差速器总成的检测系统，参见图1-图2，包括底座100和顶板200，在底座100上设置有用于对差速器壳体830进行固定的固定组件300，顶板200下侧固定有压力传感器400，压力传感器400上连接有升降组件500，升降组件500的升降端连接有夹头600，夹头600与差速器内的一个半轴齿轮a810连接，且可带动其移动，固定组件300连接差速器内的另一个半轴齿轮b820，且使其位置固定；还包括位移检测组件700和CPU处理器，CPU处理器实时获取压力传感器400所检测的压力值，并基于压力值控制位移检测组件700对夹头600沿竖直方向移动的距离进行检测。
固定组件300包括套筒310和花键芯轴320；套筒310下端与底座100连接，上端设置有支撑盘330，支撑盘330的外侧与差速器壳体830可拆卸固定连接；花键芯轴320的一端一体成型有安装柱321，安装柱321直径大于花键芯轴320的直径，且与所述套筒310内可拆卸固定连接；花键芯轴320远离所述安装柱321的一端穿过差速器壳体830，且与半轴齿轮b820固定连接。
具体的，花键芯轴320与半轴齿轮b820通过花键固定连接。安装柱321和套筒310之间过盈配合或销钉固定。
支撑盘330的外侧设置有若干圆柱凸台；差速器壳体830上开设有若干螺纹孔，圆柱凸台与螺纹孔一一配合连接。具体的，圆柱凸台的直径与所述螺纹孔的小径尺寸相同。此外也可以通过其他方式对支撑盘330和差速器壳体830进行安装固定。
升降组件500包括外套管510和内伸缩杆520；外套管510的上端与压力传感器400连接，外套管510的下端开设有伸缩口511；内伸缩杆520的一端穿过伸缩口511，位于外套管510内，且于外套管510内的侧壁设置有若干电机滑轮530；内伸缩杆520通过电机滑轮530可在外套管510内沿竖直方向匀速滑动；内伸缩杆520的另一端连接夹头600。
内伸缩杆520的下端开设有T形槽521，夹头600包括间隔设置两组夹持杆610，夹持杆610的一端滑动连接于T形槽521内，另一端设置有夹持块620， 夹持块620位于相对远离夹持杆610的一侧。夹持块620可与半轴齿轮a810配合。通过设置的两组夹持杆610，可以对不同直径的半轴齿轮a810进行夹持，进而实现对不同直径的半轴齿轮a810进行检测。同时，也可以对不同半轴齿轮a810的不同位置进行连接。具体的连接位置可以是半轴齿轮a810的端面或者是键槽，在此不限。
位移检测组件700包括竖直设置的支撑杆710，支撑杆710连接顶板200，支撑杆710上设置有位移传感器720，位移传感器720检测夹头600或内伸缩杆520沿竖直方向的移动量。
一种用于差速器总成800的检测方法,包括以下步骤：
步骤一，设置升降组件500控制夹头600静止或匀速移动时，压力传感器400受到的压力值为零。
步骤二，将差速器固定于固定组件300上，且将夹头600安装于半轴齿轮a810内侧，使夹头600向上移动一段距离后可带动所述半轴齿轮a810移动。
步骤三，控制所述升降组件500移动，以带动所述夹头600匀速向上移动。
步骤四，所述压力传感器400受到第一预定力时，向CPU处理器发出电信号，所述CPU处理器控制位移传感器720记录第一组数据。
步骤五，压力传感器400受到第二预定力时，向CPU处理器发出电信号，CPU处理器控制位移传感器720记录第二组数据。
步骤六，基于第一组数据和第二组数据，计算差速器总成800的轴向窜动量。
其中，第一预定力大于0，且小于所述半轴齿轮a810的重力，所述第二预定力大于所述半轴齿轮a810的重力。上文中，需要说明的是，当压力传感器400受到第一预定力时，此时夹头600与半轴齿轮b820相互接触，且此时夹头600对半轴齿轮b820施加的力不足以让其发生位移，继续施加力时，半轴齿轮b820将移动。当压力传感器400受到第二预定力时，此时，压力传感器400受到的力大于半轴齿轮b820的重力，此时，半轴齿轮b820与差速器壳体830相互接触存在作用力，此时，半轴齿轮b820的移动量达到最大。
具体的，计算第一组数据和第二组数据差值的绝对值为差速器总成800的轴向窜动量。
本发明提供了一种用于差速器总成800的检测系统及其检测方法，通过设 置的固定组件300对差速器壳体830和半轴齿轮b820进行固定，通过上端的升降组件500自动控制半轴齿轮a810进行升降，在升降过程中通过压力传感器400受到的压力值作为检测信号，通过检测组件记录半轴齿轮的轴向窜动量。在使用该系统进行检测时，只需要将待检测的差速器进行安装，安装后即可自动完成检测工作。与传统方式相比，该检测系统和检测方法自动化程度和检测效率高，检测结果可靠性强，且检测项目更为丰富，对操作工技能要求很低。其次，本系统制作成本低、自动化程度高，测量精度高，大大提高了差速器总成800检测效率，有效提高了装配质量检测和控制水平，避免了因人为误判造成的质量损失。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接、可以是机械连接，也可以是电连接、可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
以上所述实施例仅表达了本发明的实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (9)

  1. 一种用于差速器总成的检测系统,其特征在于:包括底座(100)和顶板(200)，在所述底座(100)上设置有用于对差速器壳体(830)进行固定的固定组件(300)，所述顶板(200)下侧固定有压力传感器(400)，所述压力传感器(400)上连接有升降组件(500)，所述升降组件(500)的升降端连接有夹头(600)，所述夹头(600)与所述差速器总成(800)内的一个半轴齿轮a(810)连接，且可带动其移动，所述固定组件(300)连接所述差速器总成(800)内的另一个半轴齿轮b(820)，且使其位置固定；
    还包括位移检测组件(700)和CPU处理器，所述CPU处理器实时获取所述压力传感器(400)所检测的压力值，并基于所述压力值控制所述位移检测组件(700)对所述夹头(600)沿竖直方向移动的距离进行检测。
  2. 根据权利要求1所述的用于差速器总成的检测系统,其特征在于:所述固定组件(300)包括套筒(310)和花键芯轴(320)；
    所述套筒(310)下端与所述底座(100)连接，上端设置有支撑盘(330)，所述支撑盘(330)的外侧与所述差速器壳体(830)可拆卸固定连接；
    所述花键芯轴(320)的一端一体成型有安装柱(321)，所述安装柱(321)直径大于所述花键芯轴(320)的直径，且与所述套筒(310)内可拆卸固定连接；
    所述花键芯轴(320)远离所述安装柱(321)的一端穿过所述差速器壳体(830)，且与所述半轴齿轮b(820)固定连接。
  3. 根据权利要求1所述的用于差速器总成的检测系统,其特征在于:所述升降组件(500)包括外套管(510)和内伸缩杆(520)；
    所述外套管(510)的上端与所述压力传感器(400)连接，所述外套管(510)的下端开设有伸缩口(511)；
    所述内伸缩杆(520)的一端穿过所述伸缩口(511)，位于所述外套管(510)内，且于所述外套管(510)内的侧壁设置有若干电机滑轮(530)；所述内伸缩杆(520)通过所述电机滑轮(530)可在所述外套管(510)内沿竖直方向匀速滑动；
    所述内伸缩杆(520)的另一端连接所述夹头(600)。
  4. 根据权利要求3所述的用于差速器总成的检测系统,其特征在于:所述内伸缩杆(520)的下端开设有T形槽(521)，
    所述夹头(600)包括间隔设置两组夹持杆(610)，所述夹持杆(610)的一端滑动连接于所述T形槽(521)内，另一端设置有夹持块(620)，所述夹持块(620)可与所述半轴齿轮配合。
  5. 根据权利要求3所述的用于差速器总成的检测系统,其特征在于:所述位移检测组件(700)包括竖直设置的支撑杆(710)，所述支撑杆(710)连接所述顶板(200)，所述支撑杆(710)上设置有位移传感器(720)，所述位移传感器(720)检测所述夹头(600)或所述内伸缩杆(520)沿竖直方向的移动量。
  6. 根据权利要求2所述的用于差速器总成的检测系统,其特征在于:所述花键芯轴(320)与所述半轴齿轮b(820)通过花键固定连接。
  7. 根据权利要求2所述的用于差速器总成的检测系统,其特征在于:所述安装柱(321)和所述套筒(310)之间过盈配合或销钉固定。
  8. 根据权利要求2所述的用于差速器总成的检测系统,其特征在于:所述支撑盘(330)的外侧设置有若干圆柱凸台；所述差速器壳体(830)上开设有若干螺纹孔，所述圆柱凸台与所述螺纹孔一一配合连接。
  9. 一种用于差速器总成的检测方法,其特征在于:包括以下步骤：
    步骤一，设置升降组件(500)单独控制夹头(600)静止或匀速移动时，压力传感器(400)受到的压力值为零；
    步骤二，将差速器固定于固定组件(300)上，且将夹头(600)安装于半轴齿轮a(810)内侧，使夹头(600)向上移动一段距离后可带动所述半轴齿轮a(810)移动；
    步骤三，控制所述升降组件(500)移动，以带动所述夹头(600)匀速向上移动；
    步骤四，所述压力传感器(400)受到第一预定力时，向CPU处理器发出电信号，所述CPU处理器控制位移传感器(720)记录第一组数据；
    步骤五，所述压力传感器(400)受到第二预定力时，向所述CPU处理器发出电信号，所述CPU处理器控制所述位移传感器(720)记录第二组数据；
    步骤六，基于所述第一组数据和第二组数据，计算所述差速器总成(800) 的轴向窜动量；
    其中，所述第一预定力大于0，且小于所述半轴齿轮a(810)的重力，所述第二预定力大于所述半轴齿轮a(810)的重力。
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