WO2021253825A1 - Inductive wireless ballbar - Google Patents

Inductive wireless ballbar Download PDF

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Publication number
WO2021253825A1
WO2021253825A1 PCT/CN2021/072869 CN2021072869W WO2021253825A1 WO 2021253825 A1 WO2021253825 A1 WO 2021253825A1 CN 2021072869 W CN2021072869 W CN 2021072869W WO 2021253825 A1 WO2021253825 A1 WO 2021253825A1
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WO
WIPO (PCT)
Prior art keywords
ballbar
measuring
battery
rod
assembly
Prior art date
Application number
PCT/CN2021/072869
Other languages
French (fr)
Chinese (zh)
Inventor
黄庭总
张和君
吴兴发
陈源
Original Assignee
深圳市中图仪器股份有限公司
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Application filed by 深圳市中图仪器股份有限公司 filed Critical 深圳市中图仪器股份有限公司
Publication of WO2021253825A1 publication Critical patent/WO2021253825A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37106—Inductive, differential transformer, pins
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37457—On machine, on workpiece
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37581—Measuring errors

Definitions

  • the invention relates to the field of measurement of circular motion trajectory errors of numerical control machine tools.
  • CNC machine tools play a very important role in modern processing technology, and the accuracy of the machine tool determines the accuracy of the processed parts. If it can be determined that the accuracy of the machine tool meets the index requirements before processing the parts, the production of scrap products can be avoided, thereby avoiding large economic losses.
  • the laser interferometer can be used to detect and compensate the accuracy of the machine tool motion axis, but it takes a long time. In actual production, processing workers only need to know whether the accuracy of the machine tool meets the requirements, and does not necessarily need to compensate for the accuracy of the machine tool. Therefore, it is necessary to have a device that can quickly detect the accuracy of the machine tool. Ballbar is used to comprehensively detect the accuracy of CNC machine tool motion axes.
  • grating ballbars such as the articulated telescopic ballbar of Xiamen Wanjiu Technology Co., Ltd., the space two-link ballbar of Hangzhou Dianzi University, and the China Engineering
  • the dual-grating ballbars of the Institute of Mechanical Research and Manufacturing Technology of the Institute of Physics have their own characteristics, the dual-grating structure is relatively complicated and the cost is relatively high.
  • API and Renishaw ballbars abroad and API ballbars are also grating-type, which are relatively large and costly. Renishaw's is inductive, which occupies a relatively large market share, but the price is relatively high.
  • a ballbar with high measurement efficiency, convenient maintenance, accuracy to meet the requirements and relatively low cost.
  • the grating ballbar has a complicated structure and a high cost.
  • the relative position of the magnetic core and solenoid coil of foreign inductive ballbars is not adjustable, and its zero position needs to be guaranteed by machining accuracy.
  • the machining accuracy and assembly requirements of the parts are high, and the cost is relatively high.
  • the present invention provides an inductive wireless ballbar.
  • the core is installed in the core sleeve rod; when the measuring rod is compressed, the return spring is also compressed; when the measuring rod is released, the return spring will push the measuring rod to move outwards until the extreme position of the measuring rod extending outward;
  • the circuit board is fixed on the main body of the ballbar, and the ground terminal of the circuit board is connected to the main body of the ballbar; the bluetooth transmitter on the circuit board sends the displacement signal of the inductive probe assembly to the computer;
  • the battery assembly One end is connected to the circuit board, and the other end of the battery assembly is connected to the ballbar main body;
  • the central support assembly includes: a measuring ball support block, a magnet, a movable support rod, an elastic claw, a conical limit sleeve, a cam rod, and a spring , Adjusting end cover, handle, return spring, upper pad, base and base magnet; the measuring ball support block and magnet are fixedly installed on the upper end of the movable support rod, and a circle or evenly distributed arc bosse
  • the adjustment end cover is connected with the conical limit sleeve.
  • the spring is compressed, and the spring force pushes the upper cushion block to compress the cam rod.
  • the cam lever is at the lowest point of the cam stroke. At this time, the movable support rod moves freely in the middle of the elastic jaws.
  • the cam lever When the handle is pulled to the horizontal state, the cam lever is at the highest point of the cam stroke, and the elastic jaws Squeezed into the conical surface inside the conical limit sleeve, the jaws are elastically deformed and clamp the movable struts so that the movable struts are fixed in one position, and the elastic jaws are fixedly connected to the base;
  • the center cup assembly Including: measuring ball support block, magnet and center cup support rod; the measurement ball support block and magnet are fixedly installed at one end of the center cup support rod, this end is used to attract the second measuring ball during measurement, and to ensure the measurement during the measurement process The center of the ball does not change ,
  • the other end of the center cup support rod is used to clamp on the CNC spindle;
  • the set ball components include: set ball and set ball handle; set ball and the two measuring balls on the ballbar host's size and accuracy The level is the same, the setting ball is fixedly connected with the setting ball handle.
  • the battery assembly includes a battery positive lead, a battery, a battery end cover, a shrapnel, and a battery negative shrapnel; the battery positive lead is connected to the circuit board through a wire, and the battery end cover is connected to the ball rod through an internal thread
  • the external thread connection at one end of the main body of the instrument keeps the battery negative shrapnel and shrapnel always in reliable contact and electrical conduction; before the battery end cover is screwed to the ballbar main body, the shrapnel does not contact the battery end cover and the ballbar main body.
  • the circuit board assembly further includes a circuit board cover
  • the ballbar main body is processed from metal materials
  • the inductive probe assembly and the battery end cover are connected to the ballbar main body by threads
  • the circuit The board cover is connected with the main body of the ballbar by screws.
  • the adjusting end cover is connected with the conical limit sleeve through a thread.
  • a base magnet is installed at the bottom of the base to adsorb and fix the central support assembly on the platform to be tested.
  • a wireless measurement system composed of a ballbar host (including a wireless transmitting device), a center support and a center cup assembly, which is used to comprehensively detect the accuracy of the motion axis of a CNC machine tool;
  • the guide of the inductive probe measuring rod Method measuring rod 2, guide sleeve 4, probe body 3, pin 19 composed of precision motion pair to ensure the accuracy of the measuring rod, pin 19 ensures that the measuring rod will not rotate during operation; ballbar inductive probe guidance is reliable ,
  • the accuracy can meet the requirements of use, and the measurement efficiency is high;
  • the installation method of the battery 10 the positive electrode of the battery is in rigid contact with the positive electrode lead 9 of the battery, and the negative electrode is in elastic contact with the negative electrode elastic piece 15 of the battery to ensure the reliability of battery installation;
  • the negative electrode elastic piece 15 of the battery The elastic function is realized by making the metal parts into the form of flexible hinge; the battery installation structure is simple, compact, and reliable;
  • the installation method of the ballbar signal transmitter device the Bluetooth transmitter is built into the ballbar
  • the elastic pawl 23 When the cam rod 25 is at the highest stroke, the elastic pawl 23 is pushed into the conical surface inside the conical limit sleeve under the elastic force of the spring 26, the hemispherical part of the movable support rod 22 is clamped, and the position of the support rod is fixed; When the cam rod 25 is at the lowest stroke, the elastic pawl 23 is pushed out of the conical surface inside the conical limit sleeve under the action of the return spring 26, the hemispherical part of the movable support rod 22 is loosened, and the support rod can be in the elastic pawl 23 Freely swing or move up and down in the middle.
  • the center support is small in size and easy to carry, the movable support rod is convenient and reliable to clamp; the structure is simple, and it is easy to install and maintain; and the cost is low.
  • Figure 1 Schematic diagram of setting ball assembly
  • Figure 2 Schematic diagram of ballbar clamping measurement
  • Figure 3 Three-dimensional view of ballbar host
  • Figure 4 Sectional view of ballbar host
  • Figure 5 Enlarged view on the right side of Figure 4, namely Schematic diagram of battery components
  • Figure 6 Exploded view of the ballbar host
  • Figure 7 Three-dimensional view of the central support assembly
  • Figure 8 Sectional view of the central support assembly
  • Figure 9 Exploded view of the central support assembly
  • Figure 10 Movable support rod and measurement Enlarged view of the ball support block
  • Figure 11 Schematic diagram of the center cup assembly
  • Figure 12 Schematic diagram of the set ball assembly.
  • the names of the components in the figure are as follows: ballbar host 100, center support assembly 200, center cup assembly 300, setting ball assembly 400, CNC spindle 500, first measuring ball 1, measuring rod 2, probe body 3, guide Set 4, ballbar main body 5, circuit board cover 6, circuit board 7, magnetic core sleeve rod 8, battery positive lead 9, battery 10, battery end cover 11, second measuring ball 12, measuring ball connecting rod 13 , Shrapnel 14, battery negative shrapnel 15, magnetic core 16, coil 17, return spring 18, pin 19, measuring ball support 20, magnet 21, movable support rod 22, elastic claw 23, tapered limit sleeve 24, cam The rod 25, the spring 26, the adjusting end cap 27, the handle 28, the return spring 29, the upper cushion 30, the base 31, the base magnet 32, the center cup support rod 33, the setting ball 34, and the setting ball handle 35.
  • an inductive wireless ballbar is mainly composed of a ballbar host 100, a center support assembly 200, a center cup assembly 300 and a setting ball assembly 400.
  • the ballbar main body 100 includes: a first measuring ball 1, a measuring rod 2, a probe body 3, a guide sleeve 4, a ballbar body 5, a circuit board cover 6, and a circuit board 7. , Magnetic core sleeve rod 8, battery positive lead 9, battery 10, battery end cover 11, second measuring ball 12, measuring ball connecting rod 13, shrapnel 14, battery negative shrapnel 15, magnetic core 16, coil 17, return spring 18. Pin 19.
  • the center support assembly 200 includes: a measuring ball support block 20, a magnet 21, a movable support rod 22, an elastic claw 23, a conical limit sleeve 24, a cam rod 25, a spring 26, and an adjustment
  • the center cup assembly 300 includes: a measuring ball support block 20, a magnet 21, and a center cup support rod 33.
  • the setting ball assembly 400 includes: a setting ball 34 and a setting ball handle 35.
  • the ballbar host includes an inductive probe assembly, a battery assembly, a circuit board assembly, and a ballbar main body.
  • the said inductive probe assembly includes a first measuring ball 1, a measuring rod 2, a measuring head body 3, a guide sleeve 4, a magnetic core sleeve rod 8, a magnetic core 16, a coil 17, a return spring 18 and a pin 19.
  • the characteristic of the inductive probe assembly is that the measuring rod 2, the measuring head body 3, the guide sleeve 4, and the pin 19 form a precise movement pair, which is reliable in guidance and ensures the accuracy of the movement of the measuring rod.
  • the pin 19 follows the measuring rod 2 to move in the waist-shaped hole on the main body 3 of the measuring head, and the matching gap with the waist-shaped hole is very small, that is, a tight fit, thereby limiting the effective stroke of the measuring rod and ensuring that the measuring rod is running No rotation occurs during the process.
  • the magnetic core sleeve rod 8 is fixedly connected with the measuring rod 2 and moves with the measuring rod.
  • the magnetic core 16 is installed in the magnetic core sleeve rod 8.
  • the return spring 18 When the measuring rod 2 is compressed, the return spring 18 is also compressed; when the measuring rod 2 is released, the return spring 18 will push the measuring rod 2 to move outwards until the extreme position of the measuring rod extending outward.
  • the battery assembly includes a battery positive electrode lead 9, a battery 10, a battery end cover 11, an elastic piece 14, and a battery negative elastic piece 15.
  • the battery assembly is characterized in that the battery positive lead 9 is connected to the circuit board through a wire, the battery end cover 11 is connected to the external thread at one end of the ballbar body 5 through an internal thread, and the battery negative spring 15 and the spring 14 always keep reliable contact. And electrical conduction.
  • the circuit board is fixed on the ballbar main body 5, and the ground terminal of the circuit board is connected to the ballbar main body 5.
  • the Bluetooth transmitter on the circuit board sends the displacement signal of the inductive probe to the computer for the computer software to analyze the measurement data.
  • the shrapnel 14 Before the battery end cover 11 is screwed to the ballbar main body 5, the shrapnel 14 is not in contact with the battery end cover 11 and the ballbar main body 5, and the ballbar is in a power-off state at this time.
  • the end of the ballbar main body 5 bears against the shrapnel 14, and at the same time the battery negative shrapnel 15 is pressed against the battery negative electrode, and the battery is pressed against the battery positive lead 9 Tight, the battery is turned on at this time, and the ballbar is in the energized state.
  • the measuring ball connecting rod 13 is threadedly connected with the battery end cover 11.
  • the second measuring ball 12 is fixedly connected to the measuring ball connecting rod 13. After the second measuring ball 12 and the measuring ball connecting rod 13 are unscrewed, different lengthened measuring rods can be installed to measure circles (or arcs) with different radii.
  • the circuit board assembly includes a circuit board 7 and a circuit board cover 6.
  • the characteristic of the circuit board assembly is that the circuit board 7 is fixedly mounted on the ballbar main body 5 by screws, and the ground terminal of the circuit board is connected to the ballbar main body 5.
  • the power supply pin of the circuit board and the positive electrode lead 9 of the battery are connected by a wire.
  • the Bluetooth transmitter on the circuit board can send the displacement signal of the measuring rod to the computer.
  • the ballbar main body 5 is made of metal materials.
  • the inductive probe assembly and the battery end cover are connected with the ballbar main body through threads.
  • the circuit board cover is connected with the ballbar main body 5 by screws.
  • the characteristic of the central support assembly is that the measuring ball support block 20 and the magnet 21 are fixedly installed on the upper end of the movable support rod 22, and a circle or evenly distributed arc bosses are designed on the measuring ball support block 20, preferably the measuring ball support
  • the block 20 is designed with three arc bosses evenly distributed. Under the action of the magnet's attraction during measurement, the first measuring ball 1 can reliably contact the three arc bosses, ensuring that when the measuring ball rotates in all directions, The position of the center of the ball will not change.
  • the lower end of the movable support rod 22 is a spherical structure, and is placed in the middle of the claws of the elastic claws 23.
  • the cam lever 25 When the cam lever 25 is in the released state, the movable support lever 22 can swing freely in the middle of the jaws, or move up and down.
  • the cam lever 25 When the cam lever 25 is in the locked state, the movable support lever 22 is firmly clamped by the claws and cannot move freely.
  • cam rod 25 There is a through hole in the middle of the elastic claw 23 for installing the cam rod 25.
  • the two ends of the cam rod 25 are in contact with the upper cushion block 30, and the spring 26 and the adjusting end cover 27 are sequentially installed under the upper cushion block 30.
  • the adjusting end cover 27 is connected with the tapered limit sleeve 24 by threads. When the adjusting end cover 27 is screwed inward, the spring 26 will be compressed, and the spring force pushes the upper pad 30 to press the cam rod 25.
  • the cam rod 25 When the handle 28 is in a vertical state, the cam rod 25 is located at the lowest point of the cam stroke, and the movable support rod 22 can move freely among the elastic claws 23 at this time.
  • the cam lever 25 When the handle 28 is pulled to the horizontal state, the cam lever 25 is located at the highest point of the cam stroke. At this time, the elastic claw 23 is squeezed into the conical surface inside the conical limit sleeve 24, and the claw is elastically deformed and clamped. Tighten the movable support rod 22 so that the movable support rod is fixed in one position. The elastic claw 23 is fixedly connected with the base 31.
  • a base magnet 32 is installed at the bottom of the base 31 for sucking and fixing the center support assembly on the platform to be tested.
  • the characteristic of the center cup assembly is that the measuring ball support block 20 and the magnet 21 are fixedly installed at one end of the center cup support rod 33, and this end is used to attract the second measuring ball 12 during measurement, and to ensure that the measuring ball is measured during the measurement process.
  • the position of the center of the sphere does not change, and the other end of the center cup support rod 33 is used for clamping on the CNC spindle.
  • the center cup assembly 300 and the CNC spindle 500 remain stationary, and the center support assembly 200 follows the CNC's XY motion platform to make a circular motion around the center cup assembly with the set radius of the ballbar host 100.
  • the center support assembly 200 follows the XY motion platform to move, and the center cup assembly 300 follows the CNC spindle 500 to move up and down.
  • the ballbar records the difference between the motion trajectory and the standard circle (arc). The motion accuracy of CNC machine tools is calculated through software analysis and calculation.
  • the characteristic of the setting ball device is that the setting ball 34 is the same in size and accuracy as the two measuring balls on the ballbar host.
  • the setting ball 34 is fixedly connected with the setting ball handle 35.
  • the setting ball device is used to set the coordinate origin at the beginning of the measurement.
  • the method of use is: first adsorb the setting ball on the movable support rod 22 of the center support. At this time, the setting ball can swing freely or move up and down with the movable support rod; control the CNC spindle direction of the clamped center cup assembly The center support assembly moves.
  • the center cup support rod 33 moves to about 2mm directly above the setting ball 34, the movable support rod 22 of the center support and the setting ball device will be attracted to the center cup support under the action of magnetic force.
  • the above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions.
  • the head can also be used for inductive probes for length measurement.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Leads Or Probes (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Provided is an inductive wireless ballbar. The inductive wireless ballbar is mainly composed of four parts: a ballbar host (100), a center support assembly (200), a center cup assembly (300) and a setting ball assembly (400). The ballbar host (100) comprises an inductive probe assembly, a battery assembly, a circuit board assembly and a ballbar body. A wireless measurement system composed of the ballbar host (100), and the center support and center cup assemblies (300) is used to comprehensively detect the accuracy of CNC machine tool motion axes. The ballbar has a simple operation, high accuracy and low costs, and may quickly detect the accuracy of CNC machine motion axes.

Description

一种电感式的无线球杆仪An inductive wireless ballbar 技术领域Technical field
本发明涉及数控机床圆运动轨迹误差测量领域。The invention relates to the field of measurement of circular motion trajectory errors of numerical control machine tools.
背景技术Background technique
CNC机床在现代加工技术中占据非常重要的作用，机床的精度决定了加工零件的精度。如果在加工零件之前能确定机床精度是符合指标要求的，就可以避免报废品的产生，从而避免大的经济损失。激光干涉仪可以用于检测并补偿机床运动轴的精度，但是耗时比较长。在实际生产中，加工工人只需要知道机床精度是否符合要求就可以了，不一定需要对机床精度进行补偿。所以能有一种快速检测机床精度的装置就很有必要。球杆仪就是用于综合检测CNC机床运动轴的精度的。CNC machine tools play a very important role in modern processing technology, and the accuracy of the machine tool determines the accuracy of the processed parts. If it can be determined that the accuracy of the machine tool meets the index requirements before processing the parts, the production of scrap products can be avoided, thereby avoiding large economic losses. The laser interferometer can be used to detect and compensate the accuracy of the machine tool motion axis, but it takes a long time. In actual production, processing workers only need to know whether the accuracy of the machine tool meets the requirements, and does not necessarily need to compensate for the accuracy of the machine tool. Therefore, it is necessary to have a device that can quickly detect the accuracy of the machine tool. Ballbar is used to comprehensively detect the accuracy of CNC machine tool motion axes.
目前国内有一些厂家和科研院所做了光栅式球杆仪，如厦门万久科技有限公司的关节式可伸缩式球杆仪、杭州电子科技大学的空间二连杆式球杆仪、中国工程物理研究院机械研究制造工艺研究所的双光栅式球杆仪等，他们虽然各有特点，但双光栅结构都较为复杂，成本也比较高。国外有API和雷尼绍公司的球杆仪，API的球杆仪也是光栅式的，其体积比较大，成本也比较高。雷尼绍的是电感式的，其在市场上占据比较大的份额，但售价比较高。对于广大的机床制造企业或者机加工企业来说需要的是一款测量效率高、维护方便、精度满足要求且成本比较低的球杆仪。At present, some domestic manufacturers and scientific research institutes have made grating ballbars, such as the articulated telescopic ballbar of Xiamen Wanjiu Technology Co., Ltd., the space two-link ballbar of Hangzhou Dianzi University, and the China Engineering Although the dual-grating ballbars of the Institute of Mechanical Research and Manufacturing Technology of the Institute of Physics have their own characteristics, the dual-grating structure is relatively complicated and the cost is relatively high. There are API and Renishaw ballbars abroad, and API ballbars are also grating-type, which are relatively large and costly. Renishaw's is inductive, which occupies a relatively large market share, but the price is relatively high. For the majority of machine tool manufacturers or machining companies, what is needed is a ballbar with high measurement efficiency, convenient maintenance, accuracy to meet the requirements and relatively low cost.
现有技术方案的缺点：光栅式球杆仪结构复杂，成本较高。国外电感式球杆仪磁芯和螺管线圈的相对位置不可调节，其零位需要完全靠加工精度保证，对零件的加工精度和装配要求高，且其成本也比较高。Disadvantages of the existing technical solutions: the grating ballbar has a complicated structure and a high cost. The relative position of the magnetic core and solenoid coil of foreign inductive ballbars is not adjustable, and its zero position needs to be guaranteed by machining accuracy. The machining accuracy and assembly requirements of the parts are high, and the cost is relatively high.
技术问题technical problem
为了提供一款操作简单、精度高、成本低，能快速检测CNC机床运动轴精度的电感式球杆仪，本发明提供了一种电感式的无线球杆仪。In order to provide an inductive ballbar with simple operation, high accuracy and low cost, and capable of quickly detecting the accuracy of the motion axis of a CNC machine tool, the present invention provides an inductive wireless ballbar.
技术解决方案Technical solutions
本发明提供了一种电感式的无线球杆仪，该电感式的无线球杆仪主要由球杆仪主机、中心支座组件、中心杯组件和设定球组件四部分组成；所述的球杆仪主机包括电感测头组件、电池组件、电路板组件和球杆仪主体；还包括与电池组件活动连接的测量球连接杆，以及与测量球连接杆连接的第二测量球；所述电感测头组件包括第一测量球、测杆、测头主体、导向套、磁芯套杆、磁芯、线圈、复位弹簧及销钉；所述电路板组件包括电路板；第一测量球设在测杆|的第一端，所述导向套套设在所述测杆上，销钉***测杆，销钉的位置靠近测杆的第二端，测杆、测头主体、导向套、销钉组成一个精密运动副，销钉跟随测杆在测头主体上的腰型孔内移动，销钉与腰型孔紧密配合；所述的磁芯套杆与测杆第二端固定连接，并随测杆一起运动，磁芯装在磁芯套杆里面；所述测杆被压缩时，复位弹簧也被压缩；当测杆被松开时，复位弹簧就会推动测杆往外运动，直至测杆往外伸的极限位置；所述电路板固定在球杆仪主体上，并且电路板的接地端与球杆仪主体导通；电路板上的蓝牙发射器将电感测头组件的位移信号发送到电脑上；所述电池组件一端与电路板连接，所述电池组件的另一端连接球杆仪主体；中心支座组件包括：测量球支块、磁铁、活动支杆、弹性卡爪、锥形限位套、凸轮杆、弹簧、调节端盖、手柄、复位弹簧、上垫块、底座及底座磁铁；测量球支块和磁铁固定安装在活动支杆上端，测量球支块上设计一圈或均匀分布若干个圆弧凸台；所述活动支杆的下端是类似球形的结构，置于弹性卡爪的卡爪中间，当凸轮杆处于松开状态时，活动支杆在卡爪中间自由摆动，或者上下移动，当凸轮杆处于锁紧状态时，活动支杆被卡爪牢牢夹紧而不能自由活动；所述弹性卡爪中间设有通孔，用于安装凸轮杆，凸轮杆两端与上垫块接触，上垫块下面依次装有弹簧和调节端盖，调节端盖与锥形限位套连接，当往里旋紧调节端盖时，弹簧被压缩，弹簧弹力推动上垫块压紧凸轮杆，当手柄处于竖直状态时，凸轮杆位于凸轮行程的最低处，此时活动支杆在弹性卡爪中间自由活动，当手柄被扳到水平状态时，凸轮杆位于凸轮行程的最高处，此时弹性卡爪被挤进锥形限位套内部的锥形面内，卡爪发生弹性变形，并夹紧活动支杆，使活动支杆被固定在一个位置上，弹性卡爪与底座固定连接；中心杯组件包括：测量球支块、磁铁及中心杯支杆；测量球支块和磁铁固定安装在中心杯支杆的一端，测量时此端用于吸住第二测量球，且确保在测量过程中测量球的球心位置不发生变动，中心杯支杆的另一端用于夹持在CNC主轴上；设定球组件包括：设定球及设定球手柄；设定球与球杆仪主机上的两个测量球大小规格及精度等级相同，设定球与设定球手柄固定连接。The invention provides an inductive wireless ballbar, which is mainly composed of a ballbar host, a center support assembly, a center cup assembly and a setting ball assembly; the ballbar The bar instrument host includes an inductive probe assembly, a battery assembly, a circuit board assembly and a ballbar main body; it also includes a measuring ball connecting rod movably connected to the battery assembly, and a second measuring ball connected to the measuring ball connecting rod; the inductance The measuring head assembly includes a first measuring ball, a measuring rod, a measuring head body, a guide sleeve, a magnetic core sleeve rod, a magnetic core, a coil, a return spring, and a pin; the circuit board assembly includes a circuit board; the first measuring ball is set under test The first end of the rod|, the guide sleeve is sleeved on the measuring rod, the pin is inserted into the measuring rod, the position of the pin is close to the second end of the measuring rod, the measuring rod, the main body of the probe, the guide sleeve, and the pin form a precise movement Pair, the pin follows the measuring rod to move in the waist-shaped hole on the main body of the measuring head, and the pin is closely matched with the waist-shaped hole; the core sleeve rod is fixedly connected with the second end of the measuring rod and moves with the measuring rod. The core is installed in the core sleeve rod; when the measuring rod is compressed, the return spring is also compressed; when the measuring rod is released, the return spring will push the measuring rod to move outwards until the extreme position of the measuring rod extending outward; The circuit board is fixed on the main body of the ballbar, and the ground terminal of the circuit board is connected to the main body of the ballbar; the bluetooth transmitter on the circuit board sends the displacement signal of the inductive probe assembly to the computer; the battery assembly One end is connected to the circuit board, and the other end of the battery assembly is connected to the ballbar main body; the central support assembly includes: a measuring ball support block, a magnet, a movable support rod, an elastic claw, a conical limit sleeve, a cam rod, and a spring , Adjusting end cover, handle, return spring, upper pad, base and base magnet; the measuring ball support block and magnet are fixedly installed on the upper end of the movable support rod, and a circle or evenly distributed arc bosses are designed on the measuring ball support block ; The lower end of the movable support rod is a spherical structure, placed in the middle of the claws of the elastic claws, when the cam rod is in the released state, the movable support rods swing freely in the middle of the claws, or move up and down, when the cam rod When in the locked state, the movable support rod is firmly clamped by the claws and cannot move freely; a through hole is provided in the middle of the elastic claws for installing the cam rod, and the two ends of the cam rod are in contact with the upper pad, and the upper pad A spring and an adjustment end cover are installed under the block in turn. The adjustment end cover is connected with the conical limit sleeve. When the adjustment end cover is tightened inward, the spring is compressed, and the spring force pushes the upper cushion block to compress the cam rod. In the vertical state, the cam lever is at the lowest point of the cam stroke. At this time, the movable support rod moves freely in the middle of the elastic jaws. When the handle is pulled to the horizontal state, the cam lever is at the highest point of the cam stroke, and the elastic jaws Squeezed into the conical surface inside the conical limit sleeve, the jaws are elastically deformed and clamp the movable struts so that the movable struts are fixed in one position, and the elastic jaws are fixedly connected to the base; the center cup assembly Including: measuring ball support block, magnet and center cup support rod; the measurement ball support block and magnet are fixedly installed at one end of the center cup support rod, this end is used to attract the second measuring ball during measurement, and to ensure the measurement during the measurement process The center of the ball does not change , The other end of the center cup support rod is used to clamp on the CNC spindle; the set ball components include: set ball and set ball handle; set ball and the two measuring balls on the ballbar host's size and accuracy The level is the same, the setting ball is fixedly connected with the setting ball handle.
作为本发明的进一步改进，所述的电池组件包括电池正极导片、电池、电池端盖、弹片和电池负极弹片；电池正极导片通过导线与电路板连接，电池端盖通过内螺纹与球杆仪主体一端的外螺纹连接，电池负极弹片与弹片始终保持可靠接触和电导通；电池端盖在旋紧到球杆仪主体之前，弹片均与电池端盖和球杆仪主体不相接触，此时球杆仪处于断电状态；当将电池端盖旋紧到球杆仪主体上时，球杆仪主体的端部顶住弹片，同时电池负极弹片顶到电池负极，并将电池往电池正极导片压紧，此时电池导通，球杆仪处于通电状态。As a further improvement of the present invention, the battery assembly includes a battery positive lead, a battery, a battery end cover, a shrapnel, and a battery negative shrapnel; the battery positive lead is connected to the circuit board through a wire, and the battery end cover is connected to the ball rod through an internal thread The external thread connection at one end of the main body of the instrument keeps the battery negative shrapnel and shrapnel always in reliable contact and electrical conduction; before the battery end cover is screwed to the ballbar main body, the shrapnel does not contact the battery end cover and the ballbar main body. When the ballbar is in a power-off state; when the battery end cap is screwed onto the ballbar body, the end of the ballbar body bears against the shrapnel, and at the same time, the negative electrode shrapnel of the battery is pushed to the negative electrode of the battery, and the battery is moved to the positive electrode of the battery. The guide piece is pressed tightly, the battery is turned on at this time, and the ballbar is in the energized state.
作为本发明的进一步改进，电路板通过螺钉固定安装在球杆仪主体上，电路板的接地端与球杆仪主体导通，电路板的电源引脚与电池正极导片之间通过导线连接，当电池导通时，电路板上的蓝牙发射器将测量杆的位移信号发送到电脑上。As a further improvement of the present invention, the circuit board is fixedly mounted on the ballbar main body by screws, the ground terminal of the circuit board is connected to the ballbar main body, and the power supply pin of the circuit board is connected with the positive electrode lead of the battery by a wire. When the battery is turned on, the Bluetooth transmitter on the circuit board sends the displacement signal of the measuring rod to the computer.
作为本发明的进一步改进，所述电路板组件还包括电路板盖板，所述球杆仪主体用金属材料加工而成，电感测头组件和电池端盖通过螺纹与球杆仪主体连接，电路板盖板通过螺丝与球杆仪主体连接。As a further improvement of the present invention, the circuit board assembly further includes a circuit board cover, the ballbar main body is processed from metal materials, the inductive probe assembly and the battery end cover are connected to the ballbar main body by threads, and the circuit The board cover is connected with the main body of the ballbar by screws.
作为本发明的进一步改进，测量球支块上设计均匀分布三个圆弧凸台。As a further improvement of the present invention, three circular arc bosses are evenly distributed on the measuring ball support block.
作为本发明的进一步改进，调节端盖通过螺纹与锥形限位套连接。As a further improvement of the present invention, the adjusting end cover is connected with the conical limit sleeve through a thread.
作为本发明的进一步改进，所述底座底部装有底座磁铁，用于将中心支座组件吸附固定在被测的平台上。As a further improvement of the present invention, a base magnet is installed at the bottom of the base to adsorb and fix the central support assembly on the platform to be tested.
有益效果Beneficial effect
本发明的有益效果是：由球杆仪主机（含无线发射装置）、中心支座和中心杯组件组成的无线测量***，用于综合检测CNC机床运动轴的精度；电感测头测量杆的导向方式：测量杆2、导向套4、测头主体3、销钉19组成的精密运动副保证测杆的运行精度，销钉19保证测杆在运行过程中不会转动；球杆仪电感测头导向可靠，精度能满足使用要求，测量效率高；电池10的安装方式：电池正极与电池正极导片9刚性接触，负极与电池负极弹片15弹性接触，以此保证电池安装的可靠性；电池负极弹片15的弹性功能是通过将金属件做成软性铰链的形式实现；电池安装结构简单、紧凑，且安装可靠；球杆仪信号发射装置的安装方式：蓝牙发射器跟随电路板7内置于球杆仪主体5内，电路板盖板采用非金属材料制成，以确保蓝牙信号能有效传输到电脑上；中心支座活动支杆22的夹紧方式：中心活动支杆22的结构是，上端是直杆，直杆顶端是磁力座装置，支杆下端是带有半球型结构，相当于一个球铰结构。当凸轮杆25位于行程最高时，弹性卡爪23在弹簧26弹力的作用下被推进锥形限位套内部的锥形面上，活动支杆22半球部位被夹紧，支杆位置被固定；当凸轮杆25位于行程最低时，弹性卡爪23在复位弹簧26的作用下被推出锥形限位套内部的锥形面，活动支杆22半球部位被松开，支杆可以在弹性卡爪23中间自由摆动或者上下移动。中心支座体积小巧，便于携带，活动支杆装夹方便可靠；结构简单，易于安装与维护；成本低。The beneficial effects of the present invention are: a wireless measurement system composed of a ballbar host (including a wireless transmitting device), a center support and a center cup assembly, which is used to comprehensively detect the accuracy of the motion axis of a CNC machine tool; the guide of the inductive probe measuring rod Method: measuring rod 2, guide sleeve 4, probe body 3, pin 19 composed of precision motion pair to ensure the accuracy of the measuring rod, pin 19 ensures that the measuring rod will not rotate during operation; ballbar inductive probe guidance is reliable , The accuracy can meet the requirements of use, and the measurement efficiency is high; the installation method of the battery 10: the positive electrode of the battery is in rigid contact with the positive electrode lead 9 of the battery, and the negative electrode is in elastic contact with the negative electrode elastic piece 15 of the battery to ensure the reliability of battery installation; the negative electrode elastic piece 15 of the battery The elastic function is realized by making the metal parts into the form of flexible hinge; the battery installation structure is simple, compact, and reliable; the installation method of the ballbar signal transmitter device: the Bluetooth transmitter is built into the ballbar following the circuit board 7 In the main body 5, the circuit board cover is made of non-metallic materials to ensure that the Bluetooth signal can be effectively transmitted to the computer; the clamping method of the center support movable support rod 22: the structure of the center movable support rod 22 is that the upper end is straight The top of the rod and the straight rod is a magnetic seat device, and the lower end of the support rod has a hemispherical structure, which is equivalent to a spherical hinge structure. When the cam rod 25 is at the highest stroke, the elastic pawl 23 is pushed into the conical surface inside the conical limit sleeve under the elastic force of the spring 26, the hemispherical part of the movable support rod 22 is clamped, and the position of the support rod is fixed; When the cam rod 25 is at the lowest stroke, the elastic pawl 23 is pushed out of the conical surface inside the conical limit sleeve under the action of the return spring 26, the hemispherical part of the movable support rod 22 is loosened, and the support rod can be in the elastic pawl 23 Freely swing or move up and down in the middle. The center support is small in size and easy to carry, the movable support rod is convenient and reliable to clamp; the structure is simple, and it is easy to install and maintain; and the cost is low.
附图说明Description of the drawings
图1：设定球组件使用示意图；图2：球杆仪装夹测量示意图；图3：球杆仪主机立体图；图4：球杆仪主机剖视图；图5：图4右侧放大图，即电池组件示意图；图6：球杆仪主机***图；图7：中心支座组件立体图；图8：中心支座组件剖视图；图9：中心支座组件***图；图10：活动支杆及测量球支块放大图；图11：中心杯组件示意图；图12：设定球组件示意图。Figure 1: Schematic diagram of setting ball assembly; Figure 2: Schematic diagram of ballbar clamping measurement; Figure 3: Three-dimensional view of ballbar host; Figure 4: Sectional view of ballbar host; Figure 5: Enlarged view on the right side of Figure 4, namely Schematic diagram of battery components; Figure 6: Exploded view of the ballbar host; Figure 7: Three-dimensional view of the central support assembly; Figure 8: Sectional view of the central support assembly; Figure 9: Exploded view of the central support assembly; Figure 10: Movable support rod and measurement Enlarged view of the ball support block; Figure 11: Schematic diagram of the center cup assembly; Figure 12: Schematic diagram of the set ball assembly.
图中各部件名称如下：球杆仪主机100、中心支座组件200、中心杯组件300、设定球组件400、CNC主轴500、第一测量球1、测杆2 、测头主体3 、导向套4 、球杆仪主体5 、电路板盖板6、电路板7、磁芯套杆8、电池正极导片9、电池10、电池端盖11、第二测量球12、测量球连接杆13、弹片14、电池负极弹片15、磁芯16 、线圈17、复位弹簧18、销钉19、测量球支块20、磁铁21、活动支杆22、弹性卡爪23 、锥形限位套24、凸轮杆25、弹簧26、调节端盖27、手柄28、复位弹簧29、上垫块30、底座31、底座磁铁32、中心杯支杆33、设定球34、设定球手柄35。The names of the components in the figure are as follows: ballbar host 100, center support assembly 200, center cup assembly 300, setting ball assembly 400, CNC spindle 500, first measuring ball 1, measuring rod 2, probe body 3, guide Set 4, ballbar main body 5, circuit board cover 6, circuit board 7, magnetic core sleeve rod 8, battery positive lead 9, battery 10, battery end cover 11, second measuring ball 12, measuring ball connecting rod 13 , Shrapnel 14, battery negative shrapnel 15, magnetic core 16, coil 17, return spring 18, pin 19, measuring ball support 20, magnet 21, movable support rod 22, elastic claw 23, tapered limit sleeve 24, cam The rod 25, the spring 26, the adjusting end cap 27, the handle 28, the return spring 29, the upper cushion 30, the base 31, the base magnet 32, the center cup support rod 33, the setting ball 34, and the setting ball handle 35.
本发明的实施方式Embodiments of the present invention
下面结合附图对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
如图1和图2所示，一种电感式的无线球杆仪，该装置主要由球杆仪主机100、中心支座组件200、中心杯组件300和设定球组件400四部分组成。As shown in Figures 1 and 2, an inductive wireless ballbar is mainly composed of a ballbar host 100, a center support assembly 200, a center cup assembly 300 and a setting ball assembly 400.
如图3至图6所示，球杆仪主机100包括：第一测量球1、测杆2 、测头主体3 、导向套4 、球杆仪主体5 、电路板盖板6、电路板7、磁芯套杆8、电池正极导片9、电池10、电池端盖11、第二测量球12、测量球连接杆13、弹片14、电池负极弹片15、磁芯16 、线圈17、复位弹簧18、销钉19。As shown in Figures 3 to 6, the ballbar main body 100 includes: a first measuring ball 1, a measuring rod 2, a probe body 3, a guide sleeve 4, a ballbar body 5, a circuit board cover 6, and a circuit board 7. , Magnetic core sleeve rod 8, battery positive lead 9, battery 10, battery end cover 11, second measuring ball 12, measuring ball connecting rod 13, shrapnel 14, battery negative shrapnel 15, magnetic core 16, coil 17, return spring 18. Pin 19.
如图7至图10所示，中心支座组件200包括：测量球支块20、磁铁21、活动支杆22、弹性卡爪23 、锥形限位套24、凸轮杆25、弹簧26、调节端盖27、手柄28、复位弹簧29、上垫块30、底座31、底座磁铁32。As shown in Figures 7 to 10, the center support assembly 200 includes: a measuring ball support block 20, a magnet 21, a movable support rod 22, an elastic claw 23, a conical limit sleeve 24, a cam rod 25, a spring 26, and an adjustment The end cover 27, the handle 28, the return spring 29, the upper block 30, the base 31, and the base magnet 32.
如图11所示，中心杯组件300包括：测量球支块20、磁铁21 、中心杯支杆33。As shown in FIG. 11, the center cup assembly 300 includes: a measuring ball support block 20, a magnet 21, and a center cup support rod 33.
如图12所示，设定球组件400包括：设定球34、设定球手柄35。As shown in FIG. 12, the setting ball assembly 400 includes: a setting ball 34 and a setting ball handle 35.
本发明技术方案的详细阐述如下。The detailed description of the technical solution of the present invention is as follows.
1）球杆仪主机100。1) Ballbar host 100.
所述的球杆仪主机包括电感测头组件、电池组件、电路板组件、球杆仪主体。The ballbar host includes an inductive probe assembly, a battery assembly, a circuit board assembly, and a ballbar main body.
所述的电感测头组件包括第一测量球1、测杆2、测头主体3、导向套4、磁芯套杆8、磁芯16、线圈17、复位弹簧18、销钉19。The said inductive probe assembly includes a first measuring ball 1, a measuring rod 2, a measuring head body 3, a guide sleeve 4, a magnetic core sleeve rod 8, a magnetic core 16, a coil 17, a return spring 18 and a pin 19.
所述的电感测头组件特征是，测杆2、测头主体3、导向套4、销钉19组成一个精密运动副，导向可靠，且保证测杆运动的精度。销钉19跟随测杆2在测头主体3上的腰型孔内移动，且与腰型孔的配合间隙很小，即紧密配合，从而限制了测杆的有效行程，也保证了测杆在运行过程中不会发生转动。The characteristic of the inductive probe assembly is that the measuring rod 2, the measuring head body 3, the guide sleeve 4, and the pin 19 form a precise movement pair, which is reliable in guidance and ensures the accuracy of the movement of the measuring rod. The pin 19 follows the measuring rod 2 to move in the waist-shaped hole on the main body 3 of the measuring head, and the matching gap with the waist-shaped hole is very small, that is, a tight fit, thereby limiting the effective stroke of the measuring rod and ensuring that the measuring rod is running No rotation occurs during the process.
所述的磁芯套杆8与测杆2固定连接，并随测杆一起运动。磁芯16装在磁芯套杆8里面。The magnetic core sleeve rod 8 is fixedly connected with the measuring rod 2 and moves with the measuring rod. The magnetic core 16 is installed in the magnetic core sleeve rod 8.
所述测杆2被压缩时，复位弹簧18也被压缩；当测杆2被松开时，复位弹簧18就会推动测杆2往外运动，直至测杆往外伸的极限位置。When the measuring rod 2 is compressed, the return spring 18 is also compressed; when the measuring rod 2 is released, the return spring 18 will push the measuring rod 2 to move outwards until the extreme position of the measuring rod extending outward.
所述的电池组件包括电池正极导片9 、电池10、电池端盖11、弹片14、电池负极弹片15。The battery assembly includes a battery positive electrode lead 9, a battery 10, a battery end cover 11, an elastic piece 14, and a battery negative elastic piece 15.
所述电池组件的特征是，电池正极导片9通过导线与电路板连接，电池端盖11通过内螺纹与球杆仪主体5一端的外螺纹连接，电池负极弹片15与弹片14始终保持可靠接触和电导通。The battery assembly is characterized in that the battery positive lead 9 is connected to the circuit board through a wire, the battery end cover 11 is connected to the external thread at one end of the ballbar body 5 through an internal thread, and the battery negative spring 15 and the spring 14 always keep reliable contact. And electrical conduction.
所述电路板固定在球杆仪主体5上，并且电路板的接地端与球杆仪主体5导通。电路板上的蓝牙发射器将电感测头的位移信号发送到电脑上，供电脑软件对测量数据进行分析。The circuit board is fixed on the ballbar main body 5, and the ground terminal of the circuit board is connected to the ballbar main body 5. The Bluetooth transmitter on the circuit board sends the displacement signal of the inductive probe to the computer for the computer software to analyze the measurement data.
所述电池端盖11在旋紧到球杆仪主体5之前，弹片14均与电池端盖 11和球杆仪主体5不相接触，此时球杆仪处于断电状态。当将电池端盖11旋紧到球杆仪主体5上时，球杆仪主体5的端部顶住弹片14，同时电池负极弹片15顶到电池负极，并将电池往电池正极导片9压紧，此时电池导通，球杆仪处于通电状态。Before the battery end cover 11 is screwed to the ballbar main body 5, the shrapnel 14 is not in contact with the battery end cover 11 and the ballbar main body 5, and the ballbar is in a power-off state at this time. When the battery end cover 11 is screwed onto the ballbar main body 5, the end of the ballbar main body 5 bears against the shrapnel 14, and at the same time the battery negative shrapnel 15 is pressed against the battery negative electrode, and the battery is pressed against the battery positive lead 9 Tight, the battery is turned on at this time, and the ballbar is in the energized state.
所述测量球连接杆13与电池端盖11螺纹连接。第二测量球12与测量球连接杆13固定连接。将第二测量球12与测量球连接杆13拧下来后，即可安装不同的加长测杆，以测量不同的半径圆（或圆弧）。The measuring ball connecting rod 13 is threadedly connected with the battery end cover 11. The second measuring ball 12 is fixedly connected to the measuring ball connecting rod 13. After the second measuring ball 12 and the measuring ball connecting rod 13 are unscrewed, different lengthened measuring rods can be installed to measure circles (or arcs) with different radii.
所述电路板组件包括电路板7和电路板盖板6。The circuit board assembly includes a circuit board 7 and a circuit board cover 6.
所述电路板组件的特征是，电路板7通过螺钉固定安装在球杆仪主体5上，电路板的接地端与球杆仪主体5导通。电路板的电源引脚与电池正极导片9之间通过导线连接。当电池导通时，电路板上的蓝牙发射器就可以将测量杆的位移信号发送到电脑上。The characteristic of the circuit board assembly is that the circuit board 7 is fixedly mounted on the ballbar main body 5 by screws, and the ground terminal of the circuit board is connected to the ballbar main body 5. The power supply pin of the circuit board and the positive electrode lead 9 of the battery are connected by a wire. When the battery is turned on, the Bluetooth transmitter on the circuit board can send the displacement signal of the measuring rod to the computer.
所述球杆仪主体5用金属材料加工而成。电感测头组件和电池端盖通过螺纹与球杆仪主体连接。电路板盖板通过螺丝与球杆仪主体5连接。The ballbar main body 5 is made of metal materials. The inductive probe assembly and the battery end cover are connected with the ballbar main body through threads. The circuit board cover is connected with the ballbar main body 5 by screws.
2）中心支座组件200。2) Center support assembly 200.
所述中心支座组件的特征是，测量球支块20和磁铁21固定安装在活动支杆22上端，测量球支块20上设计一圈或均匀分布若干个圆弧凸台，优选测量球支块20上设计均匀分布三个圆弧凸台，测量时在磁铁吸力的作用下，第一测量球1可以与这三个圆弧凸台可靠的接触，确保测量球在各个方向上转动时，其球心位置都不会发生变动。The characteristic of the central support assembly is that the measuring ball support block 20 and the magnet 21 are fixedly installed on the upper end of the movable support rod 22, and a circle or evenly distributed arc bosses are designed on the measuring ball support block 20, preferably the measuring ball support The block 20 is designed with three arc bosses evenly distributed. Under the action of the magnet's attraction during measurement, the first measuring ball 1 can reliably contact the three arc bosses, ensuring that when the measuring ball rotates in all directions, The position of the center of the ball will not change.
所述活动支杆22的下端是类似球形的结构，置于弹性卡爪23的卡爪中间。当凸轮杆25处于松开状态时，活动支杆22可以在卡爪中间自由摆动，或者上下移动。当凸轮杆25处于锁紧状态时，活动支杆22被卡爪牢牢夹紧而不能自由活动。The lower end of the movable support rod 22 is a spherical structure, and is placed in the middle of the claws of the elastic claws 23. When the cam lever 25 is in the released state, the movable support lever 22 can swing freely in the middle of the jaws, or move up and down. When the cam lever 25 is in the locked state, the movable support lever 22 is firmly clamped by the claws and cannot move freely.
所述弹性卡爪23中间有个通孔，用于安装凸轮杆25。凸轮杆25两端与上垫块30接触，上垫块30下面依次装有弹簧26和调节端盖27。调节端盖27通过螺纹与锥形限位套24连接，当往里旋紧调节端盖27时，弹簧26就会被压缩，弹簧弹力推动上垫块30压紧凸轮杆25。当手柄28处于竖直状态时，凸轮杆25位于凸轮行程的最低处，此时活动支杆22可以在弹性卡爪23中间自由活动。当手柄28被扳到水平状态时，凸轮杆25位于凸轮行程的最高处，此时弹性卡爪23被挤进锥形限位套24内部的锥形面内，卡爪发生弹性变形，并夹紧活动支杆22，使活动支杆被固定在一个位置上。弹性卡爪23与底座31固定连接。There is a through hole in the middle of the elastic claw 23 for installing the cam rod 25. The two ends of the cam rod 25 are in contact with the upper cushion block 30, and the spring 26 and the adjusting end cover 27 are sequentially installed under the upper cushion block 30. The adjusting end cover 27 is connected with the tapered limit sleeve 24 by threads. When the adjusting end cover 27 is screwed inward, the spring 26 will be compressed, and the spring force pushes the upper pad 30 to press the cam rod 25. When the handle 28 is in a vertical state, the cam rod 25 is located at the lowest point of the cam stroke, and the movable support rod 22 can move freely among the elastic claws 23 at this time. When the handle 28 is pulled to the horizontal state, the cam lever 25 is located at the highest point of the cam stroke. At this time, the elastic claw 23 is squeezed into the conical surface inside the conical limit sleeve 24, and the claw is elastically deformed and clamped. Tighten the movable support rod 22 so that the movable support rod is fixed in one position. The elastic claw 23 is fixedly connected with the base 31.
所述底座31底部装有底座磁铁32，用于将中心支座组件吸附固定在被测的平台上。A base magnet 32 is installed at the bottom of the base 31 for sucking and fixing the center support assembly on the platform to be tested.
3）中心杯组件300。3) Center cup assembly 300.
所述中心杯组件的特征是，测量球支块20和磁铁21固定安装在中心杯支杆33的一端，测量时此端用于吸住第二测量球12，且确保在测量过程中测量球的球心位置不发生变动，中心杯支杆33的另一端用于夹持在CNC主轴上。在测量XY平面上的圆时，中心杯组件300和CNC主轴500保持不动，中心支座组件200跟随CNC的XY运动平台绕中心杯组件以球杆仪主机100的设定半径作圆周运动。在测量YZ、XZ截面时，中心支座组件200跟随XY运动平台运动，中心杯组件300跟随CNC主轴500做上下运动。在测量时，球杆仪记录下运动轨迹与标准圆（圆弧）之间的差值。通过软件分析计算求出CNC机床的运动精度。The characteristic of the center cup assembly is that the measuring ball support block 20 and the magnet 21 are fixedly installed at one end of the center cup support rod 33, and this end is used to attract the second measuring ball 12 during measurement, and to ensure that the measuring ball is measured during the measurement process. The position of the center of the sphere does not change, and the other end of the center cup support rod 33 is used for clamping on the CNC spindle. When measuring a circle on the XY plane, the center cup assembly 300 and the CNC spindle 500 remain stationary, and the center support assembly 200 follows the CNC's XY motion platform to make a circular motion around the center cup assembly with the set radius of the ballbar host 100. When measuring the YZ and XZ cross sections, the center support assembly 200 follows the XY motion platform to move, and the center cup assembly 300 follows the CNC spindle 500 to move up and down. During the measurement, the ballbar records the difference between the motion trajectory and the standard circle (arc). The motion accuracy of CNC machine tools is calculated through software analysis and calculation.
4）设定球组件400。4) Set the ball assembly 400.
所述的设定球装置的特征是，设定球34与球杆仪主机上的两个测量球大小规格及精度等级相同。设定球34与设定球手柄35固定连接。设定球装置用于测量开始时的坐标原点的设定。其使用方式是：先将设定球吸附于中心支座的活动支杆22上，此时设定球可以跟随活动支杆自由摆动或者上下移动；控制装夹好中心杯组件的CNC主轴向中心支座组件移动，当中心杯支杆33移至距离设定球34正上方大约2mm时，中心支座的活动支杆22与设定球装置会在磁力的作用下被吸附到中心杯支杆33上，此时设定球的中心位置为测量的坐标原点，扳动手柄28到锁紧位置（手柄处于水平状态）即可将活动支杆22位置固定住，即固定住测量的坐标原点。然后将CNC主轴往上移动一定距离，将设定球装置取出，即可往下进行测量。The characteristic of the setting ball device is that the setting ball 34 is the same in size and accuracy as the two measuring balls on the ballbar host. The setting ball 34 is fixedly connected with the setting ball handle 35. The setting ball device is used to set the coordinate origin at the beginning of the measurement. The method of use is: first adsorb the setting ball on the movable support rod 22 of the center support. At this time, the setting ball can swing freely or move up and down with the movable support rod; control the CNC spindle direction of the clamped center cup assembly The center support assembly moves. When the center cup support rod 33 moves to about 2mm directly above the setting ball 34, the movable support rod 22 of the center support and the setting ball device will be attracted to the center cup support under the action of magnetic force. On the rod 33, set the center position of the ball as the origin of the measured coordinates. Pull the handle 28 to the locked position (the handle is in a horizontal state) to fix the position of the movable support rod 22, that is, fix the origin of the measured coordinates. . Then move the CNC spindle up a certain distance, take out the setting ball device, and then go down for measurement.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围，采用本设计的电感测头同样可以用于长度测量的电感测头。The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the present invention. The head can also be used for inductive probes for length measurement.

Claims (7)

  1. 一种电感式的无线球杆仪，其特征在于：该电感式的无线球杆仪主要由球杆仪主机（100）、中心支座组件（200）、中心杯组件（300）和设定球组件（400）四部分组成；所述的球杆仪主机（100）包括电感测头组件、电池组件、电路板组件和球杆仪主体（5）；还包括与电池组件活动连接的测量球连接杆（13），以及与测量球连接杆（13）连接的第二测量球（12）；所述电感测头组件包括第一测量球（1）、测杆（2）、测头主体（3）、导向套（4）、磁芯套杆（8）、磁芯（16）、线圈（17）、复位弹簧（18）及销钉（19）；所述电路板组件包括电路板（7）；第一测量球（1）设在测杆|（2）的第一端，所述导向套（4）套设在所述测杆（2）上，销钉（19）***测杆（2），销钉（19）的位置靠近测杆（2）的第二端，测杆（2）、测头主体（3）、导向套（4）、销钉（19）组成一个精密运动副，销钉（19）跟随测杆（2）在测头主体（3）上的腰型孔内移动，销钉（19）与腰型孔紧密配合；所述的磁芯套杆（8）与测杆（2）第二端固定连接，并随测杆（2）一起运动，磁芯（16）装在磁芯套杆（8）里面；所述测杆（2）被压缩时，复位弹簧（18）也被压缩；当测杆（2）被松开时，复位弹簧（18）就会推动测杆（2）往外运动，直至测杆往外伸的极限位置；所述电路板（7）固定在球杆仪主体（5）上，并且电路板的接地端与球杆仪主体（5）导通；电路板（7）上的蓝牙发射器将电感测头组件的位移信号发送到电脑上；所述电池组件一端与电路板（7）连接，所述电池组件的另一端连接球杆仪主体（5）；中心支座组件（200）包括：测量球支块（20）、磁铁（21）、活动支杆（22）、弹性卡爪（23）、锥形限位套（24）、凸轮杆（25）、弹簧（26）、调节端盖（27）、手柄（28）、复位弹簧（29）、上垫块（30）、底座（31）及底座磁铁（32）；测量球支块（20）和磁铁（21）固定安装在活动支杆（22）上端，测量球支块（20）上设计一圈或均匀分布若干个圆弧凸台； 所述活动支杆（22）的下端是类似球形的结构，置于弹性卡爪（23）的卡爪中间，当凸轮杆（25）处于松开状态时，活动支杆（22）在卡爪中间自由摆动，或者上下移动，当凸轮杆（25）处于锁紧状态时，活动支杆（22）被卡爪牢牢夹紧而不能自由活动；所述弹性卡爪（23）中间设有通孔，用于安装凸轮杆（25），凸轮杆（25）两端与上垫块（30）接触，上垫块（30）下面依次装有弹簧（26）和调节端盖（27），调节端盖（27）与锥形限位套（24）连接，当往里旋紧调节端盖（27）时，弹簧（26）被压缩，弹簧弹力推动上垫块（30）压紧凸轮杆（25），当手柄（28）处于竖直状态时，凸轮杆（25）位于凸轮行程的最低处，此时活动支杆（22）在弹性卡爪（23）中间自由活动，当手柄（28）被扳到水平状态时，凸轮杆（25）位于凸轮行程的最高处，此时弹性卡爪（23）被挤进锥形限位套（24）内部的锥形面内，卡爪发生弹性变形，并夹紧活动支杆（22），使活动支杆被固定在一个位置上，弹性卡爪（23）与底座（31）固定连接；中心杯组件（300）包括：测量球支块（20）、磁铁（21）及中心杯支杆（33）；测量球支块（20）和磁铁（21）固定安装在中心杯支杆（33）的一端，测量时此端用于吸住第二测量球（12），且确保在测量过程中测量球的球心位置不发生变动，中心杯支杆（33）的另一端用于夹持在CNC主轴上； 设定球组件（400）包括：设定球（34）及设定球手柄（35）；设定球（34）与球杆仪主机上的两个测量球大小规格及精度等级相同，设定球（34）与设定球手柄（35）固定连接。An inductive wireless ballbar, characterized in that: the inductive wireless ballbar is mainly composed of a ballbar host (100), a center support assembly (200), a center cup assembly (300) and a setting ball The assembly (400) consists of four parts; the ballbar host (100) includes an inductive probe assembly, a battery assembly, a circuit board assembly and the ballbar main body (5); it also includes a measuring ball connection movably connected to the battery assembly Rod (13), and a second measuring ball (12) connected to the measuring ball connecting rod (13); the inductive probe assembly includes a first measuring ball (1), a measuring rod (2), and a measuring head body (3) ), guide sleeve (4), magnetic core sleeve rod (8), magnetic core (16), coil (17), return spring (18) and pin (19); the circuit board assembly includes a circuit board (7); The first measuring ball (1) is arranged at the first end of the measuring rod | (2), the guide sleeve (4) is sleeved on the measuring rod (2), and the pin (19) is inserted into the measuring rod (2), The position of the pin (19) is close to the second end of the measuring rod (2). The measuring rod (2), the probe body (3), the guide sleeve (4), and the pin (19) form a precision motion pair. The pin (19) Follow the measuring rod (2) to move in the waist-shaped hole on the main body (3) of the measuring head, the pin (19) and the waist-shaped hole are closely matched; the core sleeve rod (8) and the measuring rod (2) are second The end is fixedly connected and moves with the measuring rod (2), the magnetic core (16) is installed in the core sleeve rod (8); when the measuring rod (2) is compressed, the return spring (18) is also compressed; When the measuring rod (2) is released, the return spring (18) will push the measuring rod (2) to move out to the extreme position where the measuring rod extends; the circuit board (7) is fixed on the ballbar main body ( 5), and the ground terminal of the circuit board is connected to the ballbar main body (5); the bluetooth transmitter on the circuit board (7) sends the displacement signal of the inductive probe assembly to the computer; one end of the battery assembly is connected to the The circuit board (7) is connected, and the other end of the battery assembly is connected to the ballbar main body (5); the central support assembly (200) includes: a measuring ball support block (20), a magnet (21), and a movable support rod (22) ), elastic claw (23), conical limit sleeve (24), cam lever (25), spring (26), adjusting end cover (27), handle (28), return spring (29), upper pad (30), the base (31) and the base magnet (32); the measuring ball support block (20) and the magnet (21) are fixedly installed on the upper end of the movable support rod (22), and the measuring ball support block (20) is designed with a circle or Evenly distribute a number of circular arc bosses; the lower end of the movable support rod (22) is a spherical-like structure and is placed in the middle of the jaws of the elastic jaws (23). When the cam lever (25) is in a loose state, The movable support rod (22) swings freely in the middle of the jaws, or moves up and down. When the cam lever (25) is in the locked state, the movable support rod (22) is firmly clamped by the jaws and cannot move freely; the elasticity There is a through hole in the middle of the claw (23) for installing the cam lever (25), the cam lever (25) Both ends are in contact with the upper cushion block (30). A spring (26) and an adjusting end cover (27) are sequentially installed under the upper cushion block (30). The adjusting end cover (27) is connected with the conical limit sleeve (24), When the adjusting end cover (27) is tightened inward, the spring (26) is compressed, and the spring force pushes the upper block (30) to compress the cam lever (25). When the handle (28) is in the vertical state, the cam lever (25) is located at the lowest point of the cam stroke. At this time, the movable support rod (22) is free to move in the middle of the elastic claw (23). When the handle (28) is pulled to the horizontal state, the cam lever (25) is at the center of the cam stroke. At the highest point, at this time, the elastic claw (23) is squeezed into the conical surface inside the conical limit sleeve (24), the claw deforms elastically, and clamps the movable support rod (22) so that the movable support rod is Fixed in one position, the elastic jaw (23) is fixedly connected with the base (31); the center cup assembly (300) includes: measuring ball support (20), magnet (21) and center cup support rod (33); measuring The ball support block (20) and the magnet (21) are fixedly installed at one end of the center cup support rod (33). This end is used to hold the second measuring ball (12) during measurement, and to ensure that the ball of the ball is measured during the measurement process. The center position does not change, the other end of the center cup support rod (33) is used to clamp on the CNC spindle; The setting ball assembly (400) includes: setting ball (34) and setting ball handle (35); The fixed ball (34) and the two measuring balls on the ballbar host have the same size specifications and accuracy grades, and the setting ball (34) is fixedly connected with the setting ball handle (35).
  2. 根据权利要求1所述的一种电感式的无线球杆仪，其特征在于：所述的电池组件包括电池正极导片（9）、电池（10）、电池端盖（11）、弹片（14）和电池负极弹片（15）；电池正极导片（9）通过导线与电路板连接，电池端盖（11）通过内螺纹与球杆仪主体（5）一端的外螺纹连接，电池负极弹片（15）与弹片（14）始终保持可靠接触和电导通；电池端盖（11）在旋紧到球杆仪主体（5）之前，弹片（14）均与电池端盖（11）和球杆仪主体（5）不相接触，此时球杆仪处于断电状态；当将电池端盖（11）旋紧到球杆仪主体（5）上时，球杆仪主体（5）的端部顶住弹片（14），同时电池负极弹片（15）顶到电池负极，并将电池往电池正极导片（9）压紧，此时电池导通，球杆仪处于通电状态。The inductive wireless ballbar according to claim 1, wherein the battery assembly includes a battery positive lead (9), a battery (10), a battery end cover (11), and a shrapnel (14). ) And the battery negative shrapnel (15); the battery positive lead (9) is connected to the circuit board through a wire, the battery end cover (11) is connected to the external thread at one end of the ballbar body (5) through an internal thread, and the battery negative shrapnel ( 15) Always maintain reliable contact and electrical conduction with the shrapnel (14); before the battery end cover (11) is screwed to the ballbar body (5), the shrapnel (14) is connected to the battery end cover (11) and the ballbar When the main body (5) is not in contact, the ballbar is in a power-off state; when the battery end cap (11) is screwed onto the ballbar main body (5), the end of the ballbar main body (5) Hold the shrapnel (14), and at the same time the battery negative shrapnel (15) is pressed against the battery negative electrode, and the battery is pressed against the battery positive lead (9). At this time, the battery is turned on and the ballbar is in the energized state.
  3. 根据权利要求2所述的一种电感式的无线球杆仪，其特征在于：电路板（7）通过螺钉固定安装在球杆仪主体（5）上，电路板的接地端与球杆仪主体（5）导通，电路板的电源引脚与电池正极导片（9）之间通过导线连接，当电池导通时，电路板上的蓝牙发射器将测量杆的位移信号发送到电脑上。The inductive wireless ballbar according to claim 2, characterized in that: the circuit board (7) is fixedly mounted on the ballbar body (5) by screws, and the ground terminal of the circuit board is connected to the ballbar body (5) Turn on, the power pin of the circuit board and the positive electrode lead (9) of the battery are connected by a wire. When the battery is turned on, the Bluetooth transmitter on the circuit board sends the displacement signal of the measuring rod to the computer.
  4. 根据权利要求2所述的一种电感式的无线球杆仪，其特征在于：所述电路板组件还包括电路板盖板（6），所述球杆仪主体（5）用金属材料加工而成，电感测头组件和电池端盖通过螺纹与球杆仪主体连接，电路板盖板（6）通过螺丝与球杆仪主体（5）连接。The inductive wireless ballbar according to claim 2, characterized in that: the circuit board assembly further comprises a circuit board cover (6), and the main body (5) of the ballbar is made of metal materials. As a result, the inductive probe assembly and the battery end cover are connected with the ballbar main body through threads, and the circuit board cover (6) is connected with the ballbar main body (5) through screws.
  5. 根据权利要求1所述的一种电感式的无线球杆仪，其特征在于：测量球支块（20）上设计均匀分布三个圆弧凸台。The inductive wireless ballbar according to claim 1, characterized in that: the measuring ball support block (20) is designed with three circular arc bosses evenly distributed.
  6. 根据权利要求1所述的一种电感式的无线球杆仪，其特征在于：调节端盖（27）通过螺纹与锥形限位套（24）连接。The inductive wireless ballbar according to claim 1, characterized in that the adjusting end cover (27) is connected with the conical limit sleeve (24) through a thread.
  7. 根据权利要求1所述的一种电感式的无线球杆仪，其特征在于：所述底座（31）底部装有底座磁铁（32），用于将中心支座组件吸附固定在被测的平台上。The inductive wireless ballbar according to claim 1, characterized in that: the bottom of the base (31) is equipped with a base magnet (32), which is used to adsorb and fix the central support assembly on the platform under test. superior.
PCT/CN2021/072869 2020-06-17 2021-01-20 Inductive wireless ballbar WO2021253825A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116592821A (en) * 2023-06-16 2023-08-15 苏州铁近机电科技股份有限公司 Bearing play detection device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111638681A (en) * 2020-06-17 2020-09-08 深圳市中图仪器股份有限公司 Inductive wireless ball arm instrument
CN114396902A (en) * 2021-11-18 2022-04-26 深圳市中图仪器股份有限公司 Method for calibrating errors of spatial coordinate measuring instrument

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004219132A (en) * 2003-01-10 2004-08-05 Masaomi Tsutsumi Measuring method of geometric error of turning shaft
GB2435842A (en) * 2006-03-09 2007-09-12 Rolls Royce Plc Ballbar equipment
CN104786098A (en) * 2015-04-10 2015-07-22 浙江大学 Geometric error six-position recognition method of multi-axis numerical control machine tool rotary table
CN108227622A (en) * 2018-01-10 2018-06-29 福州大学 Lathe geometric error measuring method and system based on one-dimensional probe and standard ball
CN108340210A (en) * 2018-05-09 2018-07-31 天津工业大学 A kind of gang tool geometric error discrimination method measured based on ball bar
CN110794766A (en) * 2019-11-25 2020-02-14 天津工业大学 Quick identification method for measuring perpendicularity error of numerical control machine tool based on ball arm instrument
CN111638681A (en) * 2020-06-17 2020-09-08 深圳市中图仪器股份有限公司 Inductive wireless ball arm instrument
CN212341727U (en) * 2020-06-17 2021-01-12 深圳市中图仪器股份有限公司 Inductive wireless ball arm instrument

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435905A (en) * 1982-03-15 1984-03-13 The United States Of America As Represented By The United States Department Of Energy Telescoping magnetic ball bar test gage
CN101762255A (en) * 2009-12-25 2010-06-30 大连理工大学 High-precision numerical control machine error detection circle measuring instrument
CN101947746B (en) * 2010-08-17 2013-04-17 西安交通大学 Laser interference-based ball arm measuring device and method
CN204487282U (en) * 2015-02-05 2015-07-22 杭州电子科技大学 Based on the space two link-type ball bar of spherical hinge
CN104990487B (en) * 2015-06-18 2017-06-23 厦门大学 A kind of nonopiate gyroaxis axle center bias measurement method based on linkage error analysis
JP6538503B2 (en) * 2015-09-24 2019-07-03 オークマ株式会社 Geometrical error identification method for machine tool and geometric error identification program
CN108655827B (en) * 2018-07-30 2020-09-25 天津中德应用技术大学 Method for identifying space error of five-axis numerical control machine tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004219132A (en) * 2003-01-10 2004-08-05 Masaomi Tsutsumi Measuring method of geometric error of turning shaft
GB2435842A (en) * 2006-03-09 2007-09-12 Rolls Royce Plc Ballbar equipment
CN104786098A (en) * 2015-04-10 2015-07-22 浙江大学 Geometric error six-position recognition method of multi-axis numerical control machine tool rotary table
CN108227622A (en) * 2018-01-10 2018-06-29 福州大学 Lathe geometric error measuring method and system based on one-dimensional probe and standard ball
CN108340210A (en) * 2018-05-09 2018-07-31 天津工业大学 A kind of gang tool geometric error discrimination method measured based on ball bar
CN110794766A (en) * 2019-11-25 2020-02-14 天津工业大学 Quick identification method for measuring perpendicularity error of numerical control machine tool based on ball arm instrument
CN111638681A (en) * 2020-06-17 2020-09-08 深圳市中图仪器股份有限公司 Inductive wireless ball arm instrument
CN212341727U (en) * 2020-06-17 2021-01-12 深圳市中图仪器股份有限公司 Inductive wireless ball arm instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116592821A (en) * 2023-06-16 2023-08-15 苏州铁近机电科技股份有限公司 Bearing play detection device
CN116592821B (en) * 2023-06-16 2023-11-14 苏州铁近机电科技股份有限公司 Bearing play detection device

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