WO2019105128A1 - Dispositif de fixation de tête de rivet et procédé de détection d'intensité de rivetage pour élément de contact de type rivetage de celui-ci - Google Patents

Dispositif de fixation de tête de rivet et procédé de détection d'intensité de rivetage pour élément de contact de type rivetage de celui-ci Download PDF

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Publication number
WO2019105128A1
WO2019105128A1 PCT/CN2018/109147 CN2018109147W WO2019105128A1 WO 2019105128 A1 WO2019105128 A1 WO 2019105128A1 CN 2018109147 W CN2018109147 W CN 2018109147W WO 2019105128 A1 WO2019105128 A1 WO 2019105128A1
Authority
WO
WIPO (PCT)
Prior art keywords
rivet
contact element
riveting
rivet head
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/109147
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English (en)
Chinese (zh)
Inventor
何斌
胡均高
申志刚
张阔
王东
叶如意
王爱平
王珩
柏小平
翁桅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuda Alloy Materials Co Ltd
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Fuda Alloy Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuda Alloy Materials Co Ltd filed Critical Fuda Alloy Materials Co Ltd
Publication of WO2019105128A1 publication Critical patent/WO2019105128A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/04—Chucks, fixtures, jaws, holders or anvils

Definitions

  • the invention belongs to the field of material property testing, and particularly relates to a testing technology for riveting strength, in particular to a rivet nail fixing fixture and a riveting strength detecting method for the riveted contact element.
  • Riveted contact elements are used in various relays, contactors, small switches, thermostats, etc. in low-voltage electrical appliances.
  • the structure of the riveted contact element generally comprises a contact base and a rivet riveted to the contact base.
  • the rivet comprises a rivet head and a rivet top, the structure of which is shown in FIG.
  • the riveting strength is not clearly defined. Only a few manufacturers test the riveting strength.
  • the torque detecting method is as follows: the rivet head of the riveted contact element is opened by a saw blade in a "one" groove, and then the torque wrench is inserted into the "one" type open groove to rotate, and the torque value is measured. Because the material of the electrical contact is mostly copper-silver alloy, the strength is low, it is easy to slip during the test, and when the saw blade is used to open the "one" groove, the width and depth cannot be accurately positioned, so the measured value fluctuates greatly. It has always been a technical problem that cannot be solved in the industry.
  • a first object of the present invention is to provide a rivet head fixing jig for riveting strength detection of a riveted contact element that is easy to operate, safe and reliable.
  • Another object of the present invention is to provide a method for detecting the riveting strength of a riveted contact member based on the above-described rivet head fixing jig.
  • the technical solution is to include a left clamp and a right clamp having left and right opposite clamping rivet heads, and the clamping faces of the left and right clamps are respectively provided with rivet heads
  • the arc-shaped fixing groove has an angle of 110-130° and a depth of 1.5-3 mm, and the inner wall of the arc-shaped fixing groove of the rivet head is evenly spaced with a plurality of convex teeth, and the protrusion is convex
  • the height is 0.2-1mm.
  • the angle of the arcuate fixing groove of the rivet head is 120°.
  • the convex teeth are in the shape of an isosceles right triangle, and the convex height of the convex teeth is 0.3 mm.
  • the technical solution is a riveted contact element riveting strength detecting method, which comprises the following steps:
  • the invention has the beneficial effects that the above-mentioned scheme can detect the specific data of the riveting strength of the riveted contact element, and has the advantages of convenient operation, safety and reliability, accurate data, etc., and can quantitatively evaluate the riveting strength of the rivet type electrical contact.
  • the rivet head fixing fixture of the present invention the rivet head of the rivet-type contact element is clamped and fixed in the arc-shaped fixing groove of the rivet head by clamping the left clamp and the right clamp, thereby not only The clamping and fixing of the rivet head is firm, and there is no need to open a "one" groove as in the conventional detecting method, and the mechanical structure of the rivet head is not damaged, and the clamping structure is set, and the rivet head is not tested. Will slip.
  • Figure 1 is a schematic view of a riveted contact element
  • Figure 3 is a schematic view showing the fixing groove of the rivet nail head fixture
  • Figure 4 is a schematic view of the rivet nail head fixed
  • Fig. 5 is a view showing the assembly of the detecting device of the embodiment of the present invention.
  • the riveted contact element Preparing the riveted contact element to be tested, as shown in FIG. 1 , the riveted contact element includes a contact base 11 and a rivet 12 riveted to the contact base, and the rivet 12 includes a rivet The head 121 and the rivet top 122; the rivet specifications are: R3 ⁇ 0.8 (0.2) + 1.5 ⁇ 1.4mm, the material is: AgCdO12 / Cu, the thickness of the copper piece is: 0.4mm, the material is QSn6.5-0.1;
  • the riveted contact element rivet head 121 is placed in the rivet nail head arc fixing groove 21 of the rivet head fixing jig 2, and the rivet head fixing jig 2 of the embodiment includes the left and right relative clamping rivets
  • the left clamp 2a and the right clamp 2b of the nail head, the clamping faces of the left clamp 2a and the right clamp 2b are respectively provided with a rivet head arc-shaped fixing groove 21, and the rivet head has a curved fixing groove 21
  • the angle is preferably 120°, the depth is 1.5-3 mm, preferably 1.5 mm, and the uniform spacing on the inner wall of the arcuate fixing groove of the rivet head is preferably provided with three convex teeth 22, the convex teeth being in the shape of an isosceles right triangle,
  • the height of the projections is preferably 0.3 mm.
  • the left jig 2a and the right jig 2b according to the embodiment are preferably made of a material having a relatively large hardness, such as hardened steel, die steel, etc. Further, the left jig 2a and the right jig 2b may be disposed in a clamp or a cylinder, A device such as a motor is used to provide clamping power.
  • the clamping force of the rivet head fixing jig 2 to the rivet head is shown by reference numeral F2, and the length direction of the rivet contact element (ie, touch The length direction of the head base 11 is parallel to the longitudinal direction of the fixing jig 2, and the rivet head 121 of the contact element is locked;
  • a dial gauge is set on the rivet head fixing jig 2, the degree of clamping of the rivet head 121 is measured by a dial gauge, and the distance between the center point of the nail head and the thrust gauge head is measured by a scale on the mounting base. L, multiplying the detected thrust value F1 by the distance measured by the scale to obtain the torque M of the riveted contact element.
  • test 10 pieces of data were: 78 N ⁇ mm; 79 N ⁇ mm; 80 N ⁇ mm; 81 N ⁇ mm; 78 N ⁇ mm; 79 N ⁇ mm; 83 N ⁇ mm; 81 N ⁇ mm; 81 N ⁇ mm; 79 N ⁇ mm.
  • the rivet specifications are: F3 ⁇ 0.8(0.2)+1.5 ⁇ 1.4mm, the material is: AgSnO 2 /Cu, the thickness of the copper parts is 0.5mm, the material is H62;
  • the degree of clamping of the nail head is measured by a dial gauge on the rivet fixing fixture, the distance between the center point of the nail head and the thrust gauge head is measured, and the detected thrust value is multiplied by the distance measured by the scale to obtain a riveted type. Torque of the contact element.
  • test 10 pieces of data were: 200 N ⁇ mm; 208 N ⁇ mm; 210 N ⁇ mm; 205 N ⁇ mm; 203 N ⁇ mm; 201 N ⁇ mm; 201 N ⁇ mm; 206 N ⁇ mm; 204 N ⁇ mm; 209 N ⁇ mm.
  • the detecting device includes a base 31.
  • the base 31 is provided with a fixed clamp driving mechanism 32.
  • the fixed clamp driving mechanism 32 uses a screw rod 321 and a screw seat 322.
  • the threaded coupling enables the screw 321 to slide, and the lead screw 321 is cooperatively engaged with the left clamp 2a, and drives the left clamp 2a and the right clamp 2b to clamp each other or away from each other.
  • a scale is provided on the side of the base 31 corresponding to the fixed jig drive mechanism 32.
  • a longitudinal rail frame 33 is provided on the base 31 with respect to the side of the fixed jig drive mechanism 32.
  • the longitudinal rail frame 33 is provided with a thrust gauge 34, and a dial gauge 35 is further provided.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

L'invention concerne un dispositif de fixation (2) d'une tête de rivet (2) et un procédé de détection d'intensité de rivetage pour un élément de contact de type rivetage de celui-ci. La solution de détection comprend : le placement d'une tête de rivet (121) d'un élément de contact de type rivetage à tester entre des rainures de fixation (21) de tête de rivet en forme d'arc (121) des brides gauche et droite (2a, 2b) du dispositif de fixation (2) de la tête de rivet (121) et le serrage étroit de la tête de rivet (121) ; et l'utilisation d'un dispositif de mesure de poussée (34) pour appliquer une force de poussée perpendiculaire à une direction de longueur d'un substrat de contact (11) sur le substrat de contact (11) de l'élément de contact de type rivetage à tester, et l'arrêt de l'application de la force de poussée jusqu'à ce que la tête de rivet (121) de l'élément de contact à tester et le substrat de contact (11) tournent l'un par rapport à l'autre, l'enregistrement d'une valeur de force de poussée F1 dans le dispositif de mesure de poussée (34) mesurant une distance L entre un point central de la tête de rivet (121) et un point d'application de force de poussée du dispositif de mesure de poussée (34) en même temps, et le calcul d'un couple M de l'élément de contact de type rivetage à tester selon une formule M=F1*L. Grâce au procédé, des données spécifiques de force de rivetage d'un élément de contact de type rivetage peuvent être détectées, et le procédé est pratique à utiliser, ses données sont sures, fiables et précises, et il peut effectuer une évaluation quantitative de la force de rivetage d'un contact électrique de type rivet.
PCT/CN2018/109147 2017-11-30 2018-09-30 Dispositif de fixation de tête de rivet et procédé de détection d'intensité de rivetage pour élément de contact de type rivetage de celui-ci Ceased WO2019105128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711233530.0A CN108225898B (zh) 2017-11-30 2017-11-30 铆钉钉头固定夹具及其铆接式触头元件铆接强度检测方法
CN201711233530.0 2017-11-30

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WO2019105128A1 true WO2019105128A1 (fr) 2019-06-06

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Cited By (3)

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CN110174305A (zh) * 2019-06-27 2019-08-27 中国航空工业标准件制造有限责任公司 空心、半空心铆钉的扩口试验夹具
CN113834735A (zh) * 2021-07-15 2021-12-24 青岛泰德汽车轴承股份有限公司 一种浪形保持架铆合质量检测装置及检测方法
CN118352196A (zh) * 2024-06-18 2024-07-16 乐清市浩益电器有限公司 一种塑壳断路器触头自动铆接装置

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CN108225898B (zh) * 2017-11-30 2024-02-13 浙江福达合金材料科技有限公司 铆钉钉头固定夹具及其铆接式触头元件铆接强度检测方法
CN109030752A (zh) * 2018-09-30 2018-12-18 宁波三星智能电气有限公司 一种应用于连接柱与板件的铆接部位的质量检验方法
KR102283355B1 (ko) * 2019-11-19 2021-07-28 김용찬 리벳접점 전단강도 측정장치
CN111855392B (zh) * 2020-07-24 2023-02-10 安庆创跃电器有限公司 一种激光刀片铆钉扭力检测装置
CN112945149B (zh) * 2021-01-26 2023-07-25 宁波诺视智能科技有限公司 一种链条铆钉铆接面积的检测装置及其检测方法

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Publication number Priority date Publication date Assignee Title
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CN118352196A (zh) * 2024-06-18 2024-07-16 乐清市浩益电器有限公司 一种塑壳断路器触头自动铆接装置

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