CN103149442B - Automatic testing device for contact resistor made of electrical contact material - Google Patents

Automatic testing device for contact resistor made of electrical contact material Download PDF

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Publication number
CN103149442B
CN103149442B CN201310050544.4A CN201310050544A CN103149442B CN 103149442 B CN103149442 B CN 103149442B CN 201310050544 A CN201310050544 A CN 201310050544A CN 103149442 B CN103149442 B CN 103149442B
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CN
China
Prior art keywords
slide unit
clamp
contact
control signal
pressure sensor
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Expired - Fee Related
Application number
CN201310050544.4A
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Chinese (zh)
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CN103149442A (en
Inventor
任万滨
陈宇
梁慧敏
薛升俊
崔黎
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN201310050544.4A priority Critical patent/CN103149442B/en
Publication of CN103149442A publication Critical patent/CN103149442A/en
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Publication of CN103149442B publication Critical patent/CN103149442B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides an automatic testing device for a contact resistor made of an electrical contact material and relates to a testing device for the contact resistor made of the electrical contact material. The invention solves the problem of the absence of the testing device for the contact resistor made of the electrical contact material which is capable of automatically controlling a contact pressure and supporting multi-contact continuous measurement. Longitudinal and horizontal sliding tables are both arranged on an upper surface of a machine base; the longitudinal sliding table is connected with the horizontal sliding table through a horizontal and longitudinal sliding table connector; a vertical sliding table is fixedly arranged at the upper end of the horizontal and longitudinal sliding table connector; a pressure sensor is fixedly arranged on the vertical sliding table; the two ends of a pressure sensor connector are respectively connected with an elastic element and the pressure sensor; a probe is assembled on a probe clamp connector through a probe clamp; a multi-contact clamp is fixedly arranged on the upper surface of the longitudinal sliding table; and a to-be-tested contact is fixedly arranged on the multi-contact clamp. The automatic testing device realizes the automatic control on a contact force of a contact and the continuous measurement for a multi-contact contact resistor and has the advantages of measuring accuracy, convenience in operation and high efficiency.

Description

Contact resistor made of electrical contact material automatic testing equipment
Technical field
The present invention relates to a kind of contact resistor made of electrical contact material testing arrangement.
Background technology
For the contact material of switch, relay, electrical connection and electric insert-pull element, also known as electrical contact material.General point forceful electric power contact material and light current contact material two kinds.Electrical contact material is China's generating, the key function material of power transmission and distribution and electrical equipment and important foundation material, the field of applying and relate to is extremely extensive, and its product quality or its technical merit directly affect the development of the high-end product even restricting China's numerous areas and industry.
So-called contact resistance, namely the tie-point of two close contacts is to the obstruction of the electric current flow through, and no matter is that the bus-bar connection that meticulous IC socket or thick bolt are fixed all also exists contact resistance.Contact resistance is the important evidence evaluating electromechanical compo switching performance and reliability.The existence of contact resistance, add the loss of conductor when being energized, the temperature of contact position is raised, and the size of its value directly affects current capacity when loop normally works.Therefore, the numerical value of contact resistance be loop is overhauled, a significant data of inspection of quality.
Professional laboratory such as Japanese Tanaka company, the leading mostly gram company of the U.S. of external electric contact material manufacturer all have the customizations tester testing rivet type slider material cold conditions contact resistance at present, and the feature that its automaticity is high, measuring accuracy is high is that the deep level development of contact material and the development of process procedure provide verification experimental verification condition and guarantee condition.China's standard GB/T/T 15078-1994 " measuring method of noble metal Contact Resistance about Electrical Contact Materials " defines the measuring method (Static Contact) of noble metal and alloy electric contact material resistance thereof, and be applicable to the use of other metals and alloy electric contact material, but do not carry out the research and development of relevant practical automated test device.The contact resistance of electrical contact is in contact with it face situation and is correlated with, and comprises real contact area, contact surface material etc.And when contact is subject to ambient pressure, contact surface can be made to produce deformation, change contact real contact area, thus change contact resistance.The Changing Pattern of the quiet contact performance of Models of Contact Materials Used in Switches and electrical contact pressure and contact resistance.The device do not have automatically to control contact at present, supporting the Changing Pattern for analyzing electrical contact pressure and contact resistance of multiple contact continuous measurement.
Summary of the invention
The present invention is in order to solve the contact resistor made of electrical contact material testing arrangement not having automatically to control contact at present, support multiple contact continuous measurement; And the contact resistor made of electrical contact material automatic testing equipment proposed.
Contact resistor made of electrical contact material automatic testing equipment, it comprises vertical slide unit, Control Component, pressure sensor, pressure sensor connecting piece, flexible member, probe clamp connector, probe clamp, probe, multiple contact clamp body, longitudinal slide unit, support, horizontal slide unit and horizontal and longitudinal slide unit connector; Described flexible member adopts six prismatic annular resilient elements; Described longitudinal slide unit and horizontal slide unit are all arranged on the upper surface of support; Described horizontal slide unit is arranged along support side; It is longitudinal that slide unit is vertical with horizontal slide unit arranges; Longitudinal slide unit is by being laterally connected with horizontal slide unit with longitudinal slide unit connector; The upper end of described transverse direction and longitudinal slide unit connector is fixedly installed vertical slide unit; Vertical slide unit is fixedly installed pressure sensor; One end of described pressure sensor connecting piece is fixedly connected with flexible member sidewall; The other end of described pressure sensor connecting piece is connected with pressure sensor; The sidewall relative with the sidewall being fixed with pressure sensor connecting piece of described flexible member is fixedly installed probe clamp connector; Described probe is installed on probe clamp connector by probe clamp; Described multiple contact clamp body is fixedly installed on the upper surface of longitudinal slide unit; Electrical contact to be measured is installed on multiple contact clamp body; Described probe is oppositely arranged with the multiple contact clamp body being equiped with electrical contact to be measured; The pressure sensor signal output of described pressure sensor is connected with the pressure sensor signal input of Control Component; Horizontal slide unit control signal output and longitudinal slide unit control signal output of described Control Component are connected the horizontal slide unit control signal input of horizontal slide unit and longitudinal slide unit control signal input of longitudinal slide unit respectively; The vertical slide unit control signal output of described Control Component is connected with the vertical slide unit control signal input of vertical slide unit.
Present invention achieves the continuous measurement to the automatic control of contact power and the contact resistance to multiple contact, there is measurement accurate, easy to operate, the advantage that efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of contact resistor made of electrical contact material automatic testing equipment described in the application; Fig. 2 is the modular structure schematic diagram of Control Component 2 described in detailed description of the invention two; Fig. 3 is the modular structure schematic diagram of Control Component 2 described in detailed description of the invention three; Fig. 4 is the structural representation of multiple contact clamp body 9.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 illustrates present embodiment, contact resistor made of electrical contact material automatic testing equipment described in present embodiment, it comprises vertical slide unit 1, Control Component 2, pressure sensor 3, pressure sensor connecting piece 4, flexible member 5, probe clamp connector 6, probe clamp 7, probe 8, multiple contact clamp body 9, longitudinal slide unit 10, support 11, horizontal slide unit 12 and horizontal and longitudinal slide unit connector 13; Described flexible member 5 adopts six prismatic annular resilient elements; Described longitudinal slide unit 10 and horizontal slide unit 12 are all arranged on the upper surface of support 11; Described horizontal slide unit 12 is arranged along support 11 1 sides; It is longitudinal that slide unit 10 is vertical with horizontal slide unit 12 arranges; Longitudinal slide unit 10 is by being laterally connected with horizontal slide unit 12 with longitudinal slide unit connector 13; The upper end of described transverse direction and longitudinal slide unit connector 13 is fixedly installed vertical slide unit 1; Vertical slide unit 1 is fixedly installed pressure sensor 3; One end of described pressure sensor connecting piece 4 is fixedly connected with a sidewall of flexible member 5; The other end of described pressure sensor connecting piece 4 is connected with pressure sensor 3; The sidewall relative with the sidewall being fixed with pressure sensor connecting piece 4 of described flexible member 5 is fixedly installed probe clamp connector 6; Described probe 8 is installed on probe clamp connector 6 by probe clamp 7; Described multiple contact clamp body 9 is fixedly installed on the upper surface of longitudinal slide unit 10; Electrical contact to be measured is installed on multiple contact clamp body 9; Described probe 8 is oppositely arranged with the multiple contact clamp body 9 being equiped with electrical contact to be measured; The pressure sensor signal output of described pressure sensor 3 is connected with the pressure sensor signal input of Control Component 2; Horizontal slide unit control signal output and longitudinal slide unit control signal output of described Control Component 2 are connected the horizontal slide unit control signal input of horizontal slide unit 12 and longitudinal slide unit control signal input of longitudinal slide unit 10 respectively; The vertical slide unit control signal output of described Control Component 2 is connected with the vertical slide unit control signal input of vertical slide unit 1.
Detailed description of the invention two: composition graphs 2 illustrates present embodiment, present embodiment and detailed description of the invention one difference are that Control Component 2 comprises singlechip controller 2-1, Programmable Logic Controller 2-2, analog-digital converter 2-3, digital to analog converter 2-4, four-wire method voltage detector 2-5 and four-wire method current detector 2-6; The analog-digital conversion data input of described singlechip controller 2-1 is connected with the analog-digital conversion data output of analog-digital converter 2-3; The pressure sensing data signal input of analog-digital converter 2-3 is the pressure sensor signal input of Control Component 2; Voltage detecting data signal input and the current detecting data signal input of analog-digital converter 2-3 are connected the voltage detecting data signal output of four-wire method voltage detector 2-5 and the current detecting data signal output of four-wire method current detector 2-6 respectively; The current detecting control signal output of described singlechip controller 2-1 is connected with the current detecting control signal input of digital to analog converter 2-4; The current detecting control signal output of digital to analog converter 2-4 is connected with the current detecting control signal input of four-wire method current detector 2-6; The horizontal slide unit control signal output of described singlechip controller 2-1 and longitudinal slide unit control signal output are the horizontal slide unit control signal output of described Control Component 2 and longitudinal slide unit control signal output; The control data signal I/O of described singlechip controller 2-1 is connected with the control data signal I/O of Programmable Logic Controller 2-2; The vertical slide unit control signal output of Programmable Logic Controller 2-2 is the vertical slide unit control signal output of described Control Component 2.Other composition is identical with detailed description of the invention one with connected mode.
Detailed description of the invention three: composition graphs 3 illustrates present embodiment, present embodiment and detailed description of the invention two difference are that Control Component 2 also comprises display 2-7; The display data input pin of described display 2-7 is connected with the display data output end of singlechip controller 2-1.Other composition is identical with detailed description of the invention two with connected mode.
Detailed description of the invention four: composition graphs 4 illustrates present embodiment, present embodiment and detailed description of the invention one difference are that multiple contact clamp body 9 comprises clamp base 9-1, clamp body 9-2, four pieces of baffle plate 9-3, conductive plate 9-4, two binding post 9-5 and N number of identical clamp assemblies; The span of described N be more than or equal to 4 even number; Described clamp body 9-2 is installed on clamp base 9-1 upper surface by four pieces of baffle plate 9-3; Described clamp body 9-2 central axis place is along its length provided with conductive plate 9-4; Described conductive plate 9-4 two sides are in the width direction respectively arranged with a binding post 9-5; Described conductive plate 9-4 two sides are along its length symmetrically arranged with N/2 V-arrangement draw-in groove respectively; Described N number of clamp assembly is installed in the clamp assembly groove on clamp body 9-2 respectively; Described N number of clamp assembly is divided into two groups; Described each clamp assembly is a corresponding V-arrangement draw-in groove respectively; Described clamp assembly comprises T-shaped clamp head 9-6, clamp spring 9-7 and operating grip 9-8; Described clamp spring 9-7 is arranged between T-shaped clamp head 9-6 and operating grip 9-8; Operating grip 9-8 realizes T-shaped clamp head 9-6 action by clamp spring 9-7.Other composition is identical with detailed description of the invention one with connected mode.
The model that in accompanying drawing 1, vertical slide unit 1 adopts IAI company to produce is the slide unit of TX-28L.
The model that in accompanying drawing 1, horizontal slide unit 12 adopts IAI company to produce is the slide unit of RCP2-SA5C.
In accompanying drawing 1, longitudinal slide unit 10 adopts the model of Beijing Ke Yingchuantuo development in science and technology Co., Ltd to be LY111DPY50M-F slide unit.
The model that in accompanying drawing 1, pressure sensor 3 adopts HBM company to produce is the pressure sensor of PW4MC3.
The model that accompanying drawing 2 middle probe fixture connector 6 adopts HAITAN company to produce is the horizontal quick-speed jigs of GH-201.
The course of work and principle:
Described vertical slide unit 1, pressure sensor 3, pressure sensor connecting piece 4, flexible member 5, probe clamp connector 6, probe clamp 7, probe 8 form contact force control device, by the control that the control realization of vertical slide unit 1 pair of displacement is out of shape flexible member 5, the control of the touch that namely achieves a butt joint.In contact force control procedure, pressure sensor 3 is measured contact force and is fed back to Control Component 2, realizes closed-loop control.Described longitudinal slide unit 10 and horizontal slide unit 12 to realize respectively between multiple contact clamp body 9 and probe 8 longitudinally with the relative movement of transverse direction, ensure that each contact on multiple contact clamp body 9 accurately can contact with probe 8.By recording contact pressure curve, adopting the four-wire method mode of connection to record resistance curve, thus analyzing the quiet contact performance of Models of Contact Materials Used in Switches, i.e. the Changing Pattern of electrical contact pressure and contact resistance.Described clamp base 9-1 and longitudinal slide unit 10 are bolted.The side that be located through groove clamp base 9-1 on of clamp body 9-2 on clamp base 9-1 and confined planes realize.Described conductive plate 9-4 is connected on clamp body 9-2 by bolt, and the binding post 9-5 on conductive plate 9-4 facilitates wiring.Contact to be measured is clamped on conductive plate 9-4 on corresponding V-shaped groove by described clamp head 9-6 under the pressure of clamp spring 9-7, can realize putting into and taking-up of contact to be measured by manipulation operations handle 9-82 simultaneously.Described clamp head 9-6 adopts insulating materials, thus realizes the insulation of contact to be measured and clamp base 9-1.After device has assembled, need to position multiple contact clamp body 9.Specific implementation method is as follows, probe 8 is replaced by the draw point of band needle point, by longitudinal slide unit 10, horizontal slide unit 12 with vertically the needle point of draw point to be touched the root of the upper surface of each V-arrangement draw-in groove on conductive plate 9-4 by the snap-action of slide unit 1 and fine motion one by one, and the displacement of longitudinal slide unit 10, horizontal slide unit 12 needed for each V-arrangement draw-in groove is recorded by Control Component 2, complete location.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For this person of an ordinary skill in the technical field, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to the scope of patent protection that claims that the present invention submits to are determined.

Claims (4)

1. contact resistor made of electrical contact material automatic testing equipment, is characterized in that it comprises vertical slide unit (1), Control Component (2), pressure sensor (3), pressure sensor connecting piece (4), flexible member (5), probe clamp connector (6), probe clamp (7), probe (8), multiple contact clamp body (9), longitudinal slide unit (10), support (11), horizontal slide unit (12) and horizontal and longitudinal slide unit connector (13); Described flexible member (5) adopts six prismatic annular resilient elements; Described longitudinal slide unit (10) and horizontal slide unit (12) are all arranged on the upper surface of support (11); Described horizontal slide unit (12) is arranged along support (11) sides; Longitudinal slide unit (10) is vertical with horizontal slide unit (12) to be arranged; Longitudinal slide unit (10) is by being laterally connected with horizontal slide unit (12) with longitudinal slide unit connector (13); The upper end of described transverse direction and longitudinal slide unit connector (13) is fixedly installed vertical slide unit (1); Vertical slide unit (1) is fixedly installed pressure sensor (3); One end of described pressure sensor connecting piece (4) is fixedly connected with a sidewall of flexible member (5); The other end of described pressure sensor connecting piece (4) is connected with pressure sensor (3); The sidewall relative with the sidewall being fixed with pressure sensor connecting piece (4) of described flexible member (5) is fixedly installed probe clamp connector (6); Described probe (8) is installed on probe clamp connector (6) by probe clamp (7); Described multiple contact clamp body (9) is fixedly installed on the upper surface of longitudinal slide unit (10); Electrical contact to be measured is installed on multiple contact clamp body (9); Described probe (8) is oppositely arranged with the multiple contact clamp body (9) being equiped with electrical contact to be measured; The pressure sensor signal output of described pressure sensor (3) is connected with the pressure sensor signal input of Control Component (2); Horizontal slide unit control signal output and longitudinal slide unit control signal output of described Control Component (2) are connected the horizontal slide unit control signal input of horizontal slide unit (12) and longitudinal slide unit control signal input of longitudinal slide unit (10) respectively; The vertical slide unit control signal output of described Control Component (2) is connected with the vertical slide unit control signal input of vertical slide unit (1).
2. contact resistor made of electrical contact material automatic testing equipment according to claim 1, is characterized in that Control Component (2) comprises singlechip controller (2-1), Programmable Logic Controller (2-2), analog-digital converter (2-3), digital to analog converter (2-4), four-wire method voltage detector (2-5) and four-wire method current detector (2-6); The analog-digital conversion data input of described singlechip controller (2-1) is connected with the analog-digital conversion data output of analog-digital converter (2-3); The pressure sensing data signal input of analog-digital converter (2-3) is the pressure sensor signal input of Control Component (2); Voltage detecting data signal input and the current detecting data signal input of analog-digital converter (2-3) are connected the voltage detecting data signal output of four-wire method voltage detector (2-5) and the current detecting data signal output of four-wire method current detector (2-6) respectively; The current detecting control signal output of described singlechip controller (2-1) is connected with the current detecting control signal input of digital to analog converter (2-4); The current detecting control signal output of digital to analog converter (2-4) is connected with the current detecting control signal input of four-wire method current detector (2-6); The horizontal slide unit control signal output of described singlechip controller (2-1) and longitudinal slide unit control signal output are the horizontal slide unit control signal output of described Control Component (2) and longitudinal slide unit control signal output; The control data signal I/O of described singlechip controller (2-1) is connected with the control data signal I/O of Programmable Logic Controller (2-2); The vertical slide unit control signal output of Programmable Logic Controller (2-2) is the vertical slide unit control signal output of described Control Component (2).
3. contact resistor made of electrical contact material automatic testing equipment according to claim 2, is characterized in that Control Component (2) also comprises display (2-7); The display data input pin of described display (2-7) is connected with the display data output end of singlechip controller (2-1).
4. contact resistor made of electrical contact material automatic testing equipment according to claim 1, is characterized in that multiple contact clamp body (9) comprises clamp base (9-1), clamp body (9-2), four pieces of baffle plates (9-3), conductive plate (9-4), two binding posts (9-5) and N number of identical clamp assemblies; The span of described N be more than or equal to 4 even number; Described clamp body (9-2) is installed on clamp base (9-1) upper surface by four pieces of baffle plates (9-3); Described clamp body (9-2) central axis place is along its length provided with conductive plate (9-4); Described conductive plate (9-4) two sides are in the width direction respectively arranged with a binding post (9-5); Described conductive plate (9-4) two sides are along its length symmetrically arranged with N/2 V-arrangement draw-in groove respectively; Described N number of clamp assembly is installed in the clamp assembly groove on clamp body (9-2) respectively; Described N number of clamp assembly is divided into two groups; Described each clamp assembly is a corresponding V-arrangement draw-in groove respectively; Described clamp assembly comprises T-shaped clamp head (9-6), clamp spring (9-7) and operating grip (9-8); Described clamp spring (9-7) is arranged between T-shaped clamp head (9-6) and operating grip (9-8); Operating grip (9-8) realizes T-shaped clamp head (9-6) action by clamp spring (9-7).
CN201310050544.4A 2013-02-08 2013-02-08 Automatic testing device for contact resistor made of electrical contact material Expired - Fee Related CN103149442B (en)

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