WO2022027765A1 - 一种电机定子性能测试机 - Google Patents

一种电机定子性能测试机 Download PDF

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Publication number
WO2022027765A1
WO2022027765A1 PCT/CN2020/113697 CN2020113697W WO2022027765A1 WO 2022027765 A1 WO2022027765 A1 WO 2022027765A1 CN 2020113697 W CN2020113697 W CN 2020113697W WO 2022027765 A1 WO2022027765 A1 WO 2022027765A1
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Prior art keywords
stator
wire
support column
testing machine
clamping
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PCT/CN2020/113697
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English (en)
French (fr)
Inventor
潘家志
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吴江市金澜机械制造有限公司
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Publication of WO2022027765A1 publication Critical patent/WO2022027765A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets

Definitions

  • the invention belongs to the field of machinery, and in particular relates to a motor stator performance testing machine.
  • the present invention provides an automatic wiring, safe and reliable motor stator performance testing machine.
  • the technical solution of the present invention is to provide a motor stator performance testing machine, which is used to test the electrical performance of a stator with a cylindrical structure.
  • the stator includes a plurality of wires, and includes a frame.
  • a tester for connecting the stator wiring to test the performance of the stator is arranged in the frame.
  • a cylindrical support column is arranged on the frame horizontally toward the front. The support column is made of insulating material. The stator to be tested is sleeved.
  • the frame is provided with a number of wire breaking devices around the support column; each of the wire breaking devices includes a plurality of metal wire breaking knives and a driving device, each All the thread-breaking knives of each of the thread-breaking devices are fixed on the driving device, and the driving device can drive the thread-breaking knives to move toward the support column, so that each of the thread-breaking knives can Correspondingly cut a stator wiring; the wire cutters are insulated from each other and from the drive device, and the wire cutters are connected to the tester through cables to pass the wire cutters and the stator. The contact of the wiring realizes the electrical connection between the stator wiring and the tester, and then the stator is tested by the tester.
  • two clamping claws are arranged symmetrically on both sides of the support column, and the clamping claws are rotated around their pivot points under the drive of the clamping cylinder, so that the arc-shaped grooves on the clamping claws are close to the support. column, thereby clamping the stator on the support column.
  • the clamping cylinder is arranged below the two clamping jaws along the axis of symmetry of the clamping jaws, the lower parts of the two clamping jaws are pivotally connected to the cylinder arms of the clamping cylinder, and the arc A groove-shaped setting of the jaws is on the inner side of the upper part.
  • a moving block is arranged on the cylinder arm that holds the cylinder, a workpiece seat is arranged in the middle of the moving block, and the workpiece seat includes an arc-shaped slot for supporting the stator, and two sides of the moving block pass through A link pivotally connects one of the jaws.
  • a door-shaped bracket spanning the support column is arranged on the frame, and the three wire-breaking devices are respectively arranged on the two support legs and beams of the bracket, and the driving device It includes a servo motor and a lead screw parallel to the servo motor, the servo motor drives the lead screw to rotate through a synchronous belt, a nut is fixed on an insulating seat, and the nut is threaded on the lead screw, The insulating seat is driven by the servo motor to move back and forth along the lead screw, and a plurality of the wire breaking knives are arranged on the insulating seat.
  • the wire breaking device further comprises a wire pressing block with a plurality of grooves, a wire pressing cylinder parallel to the lead screw drives the wire pressing block to move back and forth towards the support column, the wire pressing block The groove is used to abut the stator wiring to fix the stator wiring on the support column.
  • a protective door is provided on the frame, a start switch is provided outside the protective door, and the driving device starts to work only after the protective door is closed.
  • it also includes a conveyor belt arranged horizontally on the front surface for conveying the stator.
  • the motor stator performance testing machine of the present invention automatically fixes the stator from four directions through automated fixtures, effectively avoiding accidents caused by its loosening during the testing process, and then cuts the stator wiring with a wire cutter to realize automatic conduction, and pass Guard doors increase security.
  • the invention realizes the automatic operation of the performance test of the motor stator, and has high safety. At the same time, through reasonable structural design, the layout of each component is reasonable, the overall structure is compact, the floor area is small, and the maintenance is easy.
  • Fig. 2 is the partial enlarged view of A place in Fig. 1;
  • FIG. 5 is a partial enlarged view of B in FIG. 4 .
  • a motor stator performance testing machine of the present invention is used to test the electrical performance of a stator with a cylindrical structure.
  • the stator 10 includes several wires 12 .
  • the present invention includes a frame 14, the side of the frame 14 facing the operator is the front side, and the frame 14 is provided with a tester 15 for connecting the stator wiring 12 to test the performance of the stator, and the tester 15 is used for the resistance of the stator.
  • the equipment for testing such as pressure is a mature product on the market.
  • a cylindrical support column 16 is arranged on the frame 14 horizontally toward the front.
  • the support column 16 is made of insulating material, and the stator to be detected is sleeved on the support column 16.
  • the frame 14 is provided with three breakers around the support column 16.
  • Each wire-breaking device 18 includes a plurality of wire-breaking knives 20 made of metal and a driving device 22. All the wire-breaking knives 20 of each wire-breaking device 18 are fixed on the driving device 22, and the driving device 22 can drive the The wire cutters 20 move toward the support column 16, so that each wire cutter 20 can correspondingly cut one stator wire.
  • the wire cutters 20 are insulated from each other and from the drive device 22 .
  • the wire breaker 20 is connected to the tester through a cable, so as to realize the electrical connection between the stator wire and the tester through the contact of the wire breaker 20 with the stator wiring, and then the stator is tested by the tester.
  • the above is the principle of the present invention, and those of ordinary skill in the art can design different structures according to the above principle to achieve the purpose of the present invention.
  • two clamping jaws 24 are pivotally arranged on both sides of the support column 16 symmetrically. 26 is close to the support column 16 , thereby clamping the stator on the support column 16 .
  • the clamping cylinder 28 is arranged below the two clamping jaws 24 along the symmetrical axis of the two clamping jaws 24, the lower part of the two clamping jaws 24 is pivotally connected to the cylinder arm of the clamping cylinder 28, and the clamping jaws 24 are arranged in the arc groove 26 on the inner side of the upper part.
  • a moving block 30 is arranged on the cylinder arm that holds the cylinder 28, and a workpiece seat 32 is arranged in the middle of the moving block 30.
  • a fixing hole 36 is provided on the outer side of one of the clamping jaws 24 along the axial direction of the support column 16, and a locking cylinder 38 is provided on the other clamping jaw 24 along the axial direction of the supporting column 16, and the cylinder arm of the locking cylinder 38 is located between the two clamping jaws. 24 can be inserted into the fixing hole 36 in the clamped state to fix the two clamping jaws 24, so that after being tightened, it will not loosen during the test.
  • a door-shaped bracket 40 spanning the support column 16 is arranged on the frame 14 , and the three wire breaking devices 18 are respectively arranged on the two support legs 42 and the beam 44 of the bracket 40 .
  • the driving device 22 includes a servo motor 46 and a lead screw (not shown) parallel to the servo motor 46.
  • the servo motor 46 drives the lead screw to rotate through a timing belt 48, and a nut (not shown) is fixed on an insulating seat 50.
  • the nut is screwed on the lead screw to drive the insulating base 50 to move forward and backward along the lead screw through the servo motor 46 , and a plurality of wire breaking cutters 20 are arranged on the insulating base 50 in parallel with each other.
  • the wire-breaking device 18 also includes a wire-pressing block 54 with a plurality of grooves 52.
  • a wire-pressing cylinder 55 parallel to the lead screw drives the wire-pressing block 54 to move back and forth toward the support column 16.
  • the grooves 52 of the wire-pressing block 54 are used for Abuts against the stator wire to fix the stator wire on the support post 16 .
  • the wire breaking device 18 also includes a clamping block 56 with an arc surface, a clamping cylinder 58 parallel to the lead screw drives the clamping block 56 to move back and forth toward the support column 16, and the clamping block 56 is used to squeeze the stator on the support column 16.
  • a protective door (not shown) is provided on the frame 14, and a start switch 60 is provided outside the protective door.
  • the driving device 22 starts to work only after the protective door is closed.
  • a conveyor belt 62 disposed horizontally on the front for conveying the stator 10 .
  • the stator When the present invention is in use, the stator is firstly transported to the frame 14 by the conveyor belt, and then the stator is manually sheathed on the support column 16 . Close the protective door and press the start switch to start.
  • the holding cylinder 28 stretches forward, driving the workpiece seat 32 and the clamping jaw 24 to fix the stator; the wire pressing cylinder drives the wire pressing block 54 to move towards the support column 16, and squeezes the stator wiring on the supporting column 16 through the groove 52 of the wire pressing block 54 On; the clamping cylinder 58 stretches forward, driving the clamping block 56 to squeeze the stator on the support column 16. This holds the stator and the stator wiring in multiple directions.
  • the servo motor 46 starts to work, and drives the wire breaking knife 20 to advance the set stroke, so that it just breaks the skin of the stator wiring, so that the wire breaking knife 20 contacts the wire part of the wire, so that the tester is connected, and the test can be carried out.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

一种电机定子性能测试机，其机架(14)内设置有测试仪，机架(14)上水平朝向正面设置一圆柱形的支撑柱(16)，支撑柱(16)由绝缘材料制成，待检测的定子(10)套设在支撑柱(16)上，机架(14)上围绕支撑柱(16)设置有若干个破线装置(18)；每个破线装置(18)均包括若干个金属制成的破线刀(20)及一驱动装置(22)，每个破线装置(18)的全部破线刀(20)均固定在驱动装置(22)上，驱动装置(22)可驱动破线刀(20)朝向支撑柱(16)移动，以使得每个破线刀(20)可对应切开一根定子接线；破线刀(20)相互之间绝缘，且与驱动装置(22)之间绝缘，破线刀(20)通过电缆连接测试仪，以通过破线刀(20)与定子接线的接触从而实现该定子接线与测试仪的电连接，进而通过测试仪对定子(10)进行测试。该装置通过破线刀切开定子接线，从而提高了自动化程度及安全性。

Description

一种电机定子性能测试机 技术领域
本发明属于机械领域，具体涉及一种电机定子性能测试机。
背景技术
在电机制造过程中，通常会对电机的定子进行性能测试。这种性能测试通常需要连接定子的接线端子，然后通过常规的电阻测量、匝间测试、高压测试等。目前，对应的测试仪技术已经成熟，市场上有成熟的产品可供采购使用。但是测试的项目多，且需要接线，通常采用人工接线的方式，将测试仪的接线连接到定子的接线端子上，然后进行各项测试。定子的接线端子通常有7-8个，甚至更多。这种手工接线的方式，大大降低了生产效率，而且由于测试仪带电，也给操作工带来了潜在的危险。
发明内容
为了克服上述问题，本发明提供一种自动化接线、安全可靠的电机定子性能测试机。
本发明的技术方案是提供一种电机定子性能测试机，其用于对圆筒结构的定子进行电性能测试,该定子包括若干根接线，其包括机架，所述机架包括正面，所述机架内设置有用于连接定子接线以测试定子性能的测试仪，所述机架上水平朝向所述正面设置一圆柱形的支撑柱，所述支撑柱由绝缘材料制成，待检测的定子套设在所述支撑柱上，所述机架上围绕所述支撑柱设置有若干个破线装置；每个所述破线装置均包括若干个金属制成的破线刀及一驱动装置，每个所述破线装置的全部所述破线刀均固定在所述驱动装置上，所述驱动装置可驱动所述破线刀朝向所述支撑柱移动，以使得每个所述破线刀可对应切开一根定子接线；所述破线刀相互之间绝缘，且与所述驱动装置之间绝缘，所述破线刀通过电缆连接所述测试仪，以通过所述破线刀与定子接线的接触从而实现该定子接线与所述测试仪的电连接，进而通过所述测试仪对定子进行测试。
优选的，所述支撑柱两侧对称枢轴设置两夹爪，所述夹爪在抱紧气缸的驱动下绕其枢轴点旋转，以使得所述夹爪上的弧形槽靠近所述支撑柱，从而夹紧所述支撑柱上的定子。
优选的，所述抱紧气缸沿两所述夹爪的对称轴设置在两所述夹爪下方，两所述夹爪的下部枢轴连接在所述抱紧气缸的气缸臂上，所述弧形槽设置所述夹爪是上部内侧。
优选的，其中一所述夹爪的外侧沿所述支撑柱轴线方向设置一固定孔，另一所述夹爪上沿所述支撑柱轴线方向设置一锁定气缸，所述锁定气缸的气缸臂在两所述夹爪夹紧状态下可伸入到所述固定孔中，以固定两所述夹爪。
优选的，所述抱紧气缸的气缸臂上设置一移动块，所述移动块中部设置一工件座，所述工件座包括一用以支撑定子的弧形槽，所述移动块两侧各通过一连杆枢轴连接一所述夹爪。
优选的，所述机架上设置一横跨所述支撑柱的门型的支架，三个所述破线装置分别设置在所述支架的两条支撑腿及横梁上，所述所述驱动装置包括一伺服电机及与所述伺服电机平行的丝杠，所述伺服电机通过同步带驱动所述丝杠旋转，一绝缘座上固定设置一螺母，所述螺母螺纹连接在所述丝杠上，以通过所述伺服电机驱动所述绝缘座沿所述丝杠前后移动，所述绝缘座上设置若干个所述破线刀。
优选的，所述破线装置还包括一带若干个凹槽的压线块，一与所述丝杠平行的压线气缸驱动所述压线块朝向所述支撑柱前后移动，所述压线块的凹槽用于抵靠在定子接线上以将定子接线固定在所述支撑柱上。
优选的，所述破线装置还包括一带弧面的夹块，一与所述丝杠平行的夹紧气缸驱动所述夹块朝向所述支撑柱前后移动，所述夹块用于将定子挤压在所述支撑柱上。
优选的，所述机架上设置有防护门，所述防护门外设置有启动开关，仅在所述防护门关闭后，所述驱动装置才开始工作。
优选的，还包括一水平设置在所述正面的用于输送定子的输送带。
本发明的电机定子性能测试机通过自动化的夹具自动从四个方向上将定子固定，有效避免其在测试过程中松脱造成事故，然后通过破线刀切开定子接线，实现自动导通，并通过防护门提高安全性。本发明实现了电机定子性能测试的自动化作业，具有很高的安全性，同时通过合理的结构设计，使得各部件布局合理，整体结构紧凑、占地面积小，易于维护。
附图说明
图1是本发明最佳实施例的电机定子性能测试机的立体结构示意图；
图2是图1中A处的局部放大图；
图3是夹爪的立体结构示意图；
图4是支架和破线装置的结构示意图；
图5是图4中B处局部放大图。
具体实施方式
下面对本发明的具体实施方式作进一步详细的描述。
如图1至图5所示，本发明的一种电机定子性能测试机，其用于对圆筒结构的定子进行电性能测试,该定子10包括若干根接线12。本发明包括机架14，机架14朝向操作人员 的一面为其正面，机架14内设置有用于连接定子接线12以测试定子性能的测试仪15，该测试仪15是用于给定子进行耐压等测试用的设备，为市场上已经成熟的产品。机架14上水平朝向正面设置一圆柱形的支撑柱16，支撑柱16由绝缘材料制成，待检测的定子套设在支撑柱16上，机架14上围绕支撑柱16设置有3个破线装置18。每个破线装置18均包括若干个金属制成的破线刀20及一驱动装置22，每个破线装置18的全部破线刀20均固定在驱动装置22上，驱动装置22可驱动破线刀20朝向支撑柱16移动，以使得每个破线刀20可对应切开一根定子接线。破线刀20相互之间绝缘，且与驱动装置22之间绝缘。破线刀20通过电缆连接测试仪，以通过破线刀20与定子接线的接触从而实现该定子接线与测试仪的电连接，进而通过测试仪对定子进行测试。以上是本发明的原理，本领域普通技术人员可以根据上述原理设计出不同的结构来实现本发明的目的。
本发明最佳实施例中，支撑柱16两侧对称枢轴设置两夹爪24，夹爪24在抱紧气缸28的驱动下绕其枢轴点旋转，以使得夹爪24上的弧形槽26靠近支撑柱16，从而夹紧支撑柱16上的定子。抱紧气缸28沿两夹爪24的对称轴设置在两夹爪24下方，两夹爪24的下部枢轴连接在抱紧气缸28的气缸臂上，弧形槽26设置夹爪24是上部内侧。抱紧气缸28的气缸臂上设置一移动块30，移动块30中部设置一工件座32，工件座32包括一用以支撑定子的弧形槽34，移动块30两侧各通过一连杆37枢轴连接一夹爪24。此结构使得抱紧气缸28的气缸臂向上移动时，工件座32从下向上支撑住定子；同时，两夹爪24从两侧同步抱住定子，以实现定子的固定。
进一步地，其中一夹爪24的外侧沿支撑柱16轴线方向设置一固定孔36，另一夹爪24上沿支撑柱16轴线方向设置一锁定气缸38，锁定气缸38的气缸臂在两夹爪24夹紧状态下可伸入到固定孔36中，以固定两夹爪24，使得抱紧后，在测试的过程中，不会松脱。
机架14上设置一横跨支撑柱16的门型的支架40，三个破线装置18分别设置在支架40的两条支撑腿42及横梁44上。驱动装置22包括一伺服电机46及与伺服电机46平行的丝杠(未图示)，伺服电机46通过同步带48驱动丝杠旋转，一绝缘座50上固定设置一螺母(未图示)，螺母螺纹连接在丝杠上，以通过伺服电机46驱动绝缘座50沿丝杠前后移动，绝缘座50上相互平行地设置若干个破线刀20。
破线装置18还包括一带若干个凹槽52的压线块54，一与丝杠平行的压线气缸55驱动压线块54朝向支撑柱16前后移动，压线块54的凹槽52用于抵靠在定子接线上以将定子接线固定在支撑柱16上。
破线装置18还包括一带弧面的夹块56，一与丝杠平行的夹紧气缸58驱动夹块56朝 向支撑柱16前后移动，夹块56用于将定子挤压在支撑柱16上。
机架14上设置有防护门(未图示)，防护门外设置有启动开关60，仅在防护门关闭后，驱动装置22才开始工作。
还包括一水平设置在正面的用于输送定子10的输送带62。
本发明在使用时，首先通过输送带将定子输送至机架14处，然后由人工将定子套在支撑柱16上。关闭防护门，按启动开关启动。抱紧气缸28前伸，驱动工件座32和夹爪24固定定子；压线气缸驱动压线块54朝向支撑柱16移动，通过压线块54的凹槽52将定子接线挤压在支撑柱16上；夹紧气缸58前伸，驱动夹块56将定子挤压在支撑柱16上。这样从多个方向固定住定子以及定子接线。伺服电机46开始工作，驱动破线刀20前进设定的行程，使得其刚好破开定子接线的表皮，使得破线刀20和接线的金属线部分接触，从而连通测试仪，可以进行测试了。
以上实施例仅为本发明其中的一种实施方式，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 (10)

  1. 一种电机定子性能测试机，其用于对圆筒结构的定子进行电性能测试,该定子包括若干根接线，其特征在于：其包括机架，所述机架包括正面，所述机架内设置有用于连接定子接线以测试定子性能的测试仪，所述机架上水平朝向所述正面设置一圆柱形的支撑柱，所述支撑柱由绝缘材料制成，待检测的定子套设在所述支撑柱上，所述机架上围绕所述支撑柱设置有若干个破线装置；每个所述破线装置均包括若干个金属制成的破线刀及一驱动装置，每个所述破线装置的全部所述破线刀均固定在所述驱动装置上，所述驱动装置可驱动所述破线刀朝向所述支撑柱移动，以使得每个所述破线刀可对应切开一根定子接线；所述破线刀相互之间绝缘，且与所述驱动装置之间绝缘，所述破线刀通过电缆连接所述测试仪，以通过所述破线刀与定子接线的接触从而实现该定子接线与所述测试仪的电连接，进而通过所述测试仪对定子进行测试。
  2. 根据权利要求1所述的一种电机定子性能测试机，其特征在于：所述支撑柱两侧对称枢轴设置两夹爪，所述夹爪在抱紧气缸的驱动下绕其枢轴点旋转，以使得所述夹爪上的弧形槽靠近所述支撑柱，从而夹紧所述支撑柱上的定子。
  3. 根据权利要求2所述的一种电机定子性能测试机，其特征在于：所述抱紧气缸沿两所述夹爪的对称轴设置在两所述夹爪下方，两所述夹爪的下部枢轴连接在所述抱紧气缸的气缸臂上，所述弧形槽设置所述夹爪是上部内侧。
  4. 根据权利要求3所述的一种电机定子性能测试机，其特征在于：其中一所述夹爪的外侧沿所述支撑柱轴线方向设置一固定孔，另一所述夹爪上沿所述支撑柱轴线方向设置一锁定气缸，所述锁定气缸的气缸臂在两所述夹爪夹紧状态下可伸入到所述固定孔中，以固定两所述夹爪。
  5. 根据权利要求4所述的一种电机定子性能测试机，其特征在于：所述抱紧气缸的气缸臂上设置一移动块，所述移动块中部设置一工件座，所述工件座包括一用以支撑定子的弧形槽，所述移动块两侧各通过一连杆枢轴连接一所述夹爪。
  6. 根据权利要求1至5其中之一所述的一种电机定子性能测试机，其特征在于：所述机架上设置一横跨所述支撑柱的门型的支架，三个所述破线装置分别设置在所述支架的两条支撑腿及横梁上，所述所述驱动装置包括一伺服电机及与所述伺服电机平行的丝杠，所述伺服电机通过同步带驱动所述丝杠旋转，一绝缘座上固定设置一螺母，所述螺母螺纹连接在所述丝杠上，以通过所述伺服电机驱动所述绝缘座沿所述丝杠前后移动，所述绝缘座上设置若干个所述破线刀。
  7. 根据权利要求6所述的一种电机定子性能测试机，其特征在于：所述破线装置还包括一 带若干个凹槽的压线块，一与所述丝杠平行的压线气缸驱动所述压线块朝向所述支撑柱前后移动，所述压线块的凹槽用于抵靠在定子接线上以将定子接线固定在所述支撑柱上。
  8. 根据权利要求6所述的一种电机定子性能测试机，其特征在于：所述破线装置还包括一带弧面的夹块，一与所述丝杠平行的夹紧气缸驱动所述夹块朝向所述支撑柱前后移动，所述夹块用于将定子挤压在所述支撑柱上。
  9. 根据权利要求1所述的一种电机定子性能测试机，其特征在于：所述机架上设置有防护门，所述防护门外设置有启动开关，仅在所述防护门关闭后，所述驱动装置才开始工作。
  10. 根据权利要求1所述的一种电机定子性能测试机，其特征在于：还包括一水平设置在所述正面的用于输送定子的输送带。
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