CN206804460U - Impression measurement apparatus is used in the detection of metal Brinell hardness tester - Google Patents

Impression measurement apparatus is used in the detection of metal Brinell hardness tester Download PDF

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Publication number
CN206804460U
CN206804460U CN201720710366.7U CN201720710366U CN206804460U CN 206804460 U CN206804460 U CN 206804460U CN 201720710366 U CN201720710366 U CN 201720710366U CN 206804460 U CN206804460 U CN 206804460U
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China
Prior art keywords
outer cover
impression
permanent magnet
hardness tester
brinell hardness
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CN201720710366.7U
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Chinese (zh)
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高斐
刘涛
徐浩
李爱伟
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Shanxi Inspection And Testing Center Shanxi Institute Of Standard Measurement Technology
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SHANXI INSTITUTE OF METROLOGY
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Abstract

Impression measurement apparatus is used in the impression detection field that the utility model belongs in gauge check, specifically a kind of metal Brinell hardness tester detection.Including magnetic switch portion and microscope fixed part, the magnetic switch portion includes two semicircle soft iron pipes, two pieces of cast iron seats outside two semicircle soft iron pipe convex surfaces are enclosed respectively, two semicircle soft iron pipes and two pieces of cast iron seat splits cause middle part to form cylindrical cavity, and stitching portion is spaced apart by layer of brass;The cylindrical empty intracavitary is provided with permanent magnet, and two pole end pieces of permanent magnet are rotatably assorted with cylindrical empty cavity wall respectively, and cast iron seat outer cup is provided with the outer cover closed with its match profiles, is stretched in the middle part of permanent magnet to outer cover extension provided with knob.The utility model make it that test specimen is not easily shifted in measurement process, is convenient for measuring the test specimen of all size, and expands the scope of application of the device without external power supply in measurement process, simple to operate, and measurement accuracy is high, practical.

Description

Impression measurement apparatus is used in the detection of metal Brinell hardness tester
Technical field
The impression detection field that the utility model belongs in gauge check, specifically a kind of metal Brinell hardness tester detection are used Impression measurement apparatus.
Background technology
Brinell hardness tester is mainly used in being measured the hardness such as cast iron, steel, non-ferrous metal and mild alloy.Mainly use The hard metal ball of certain diameter, the Specimen surface in the presence of defined test force, kept by certain test force Removal test force after time, then measurement stay in surface of test piece impression diameter, accumulate born average pressure with indentation surface and come Represent ball hardness number.JJG150《Metal Brinell hardness tester》Measurement verification regulations provide, when carrying out the calibrating of Brinell hardness tester, We with detected hardometer apply on standard block of hardness as defined in test force, the impression for measuring standard block of hardness surface is straight Footpath, then draw ball hardness number corresponding to the diameter reality by looking into the corresponding table of impression diameter and hardness number, then with standard The hardness number of block of hardness is compared calculating, so as to obtain the scleroscopic hardness number error.
In daily calibrating, we generally measure impression diameter with reading microscope, and in cylinder, bottom is its lens barrel Impression, is placed in the metal ring of bottom during measurement, is observed by the eyepiece on top by round metal annular.Left side windowing portion It is divided into transparent area, is easy to daylighting.When carrying out observation measurement with reading microscope, impression diameter reading need to be accurate to 0 .01mm.Pass The reading microscope of system have when impression diameter measures two it is main the problem of:
1. wanting accurate measurement impression diameter, the relative position of reading microscope and impression must immobilize.Common reading Digital display micro mirror is placed directly in standard block of hardness surface in reading, because microscope bottom and standard block of hardness surface are smooth Metallic article, when carrying out aiding in fixing with human hand, the tiny influence of human hand change can all make the phase of reading microscope and impression Position is changed, so as to the measurement accuracy of extreme influence impression diameter.In the data that can be found, have two for this point Kind solution:
1)By being additionally arranged at the bottom annular permanent magnnet in microscope, microscope can be made to be fixed on tested surface of test piece, so as to So that during reading, microscope and impression relative position keep constant.Shortcoming is before impression diameter is read, it is necessary to first constantly adjust The relative position of whole microscope and impression, so as to find optimal measurement position, and magnetic force exists always, exchanges full employment and brings Inconvenience, reduces operating efficiency.
2)Install electromagnet, battery and power switch additional on microscope, control the magnetic force of electromagnet whether there is by switching, It is convenient for measuring the adjustment of position and the fixation of relative position.Shortcoming is that volume is larger, operation inconvenience.Second, using effect takes Certainly in battery electric power abundance whether.
2. measure, whether ambient light abundance can also make a big impact to reading.Common reading microscope Do not illuminate, there must be good natural lighting or by external light sources such as torch, desk lamps during use, otherwise can cause impression Observe it is unclear, have a strong impact on impression diameter measurement accuracy.In the data that can be found, there is following solution party for this point Case:By installing the lighting devices such as battery, bulb additional on microscope, solves the problems, such as natural lighting deficiency.Shortcoming is to install additional to shine After bright device, microscope volume is big, in-convenience in use;Whether sufficient illuminating effect is dependent on battery electric power.
The content of the invention
The utility model is mainly solving the technical problems that offer one kind is simple in construction, easy to use, does not need electric power just A kind of metal Brinell hardness tester detection impression measurement apparatus that can be used.Overcome the shifting of current microscope and impression relative position Dynamic, fixed and reading microscope daylighting needs to be used as the defects of energy could be realized by electric power, and it is straight can conveniently to test impression Footpath, improve the accuracy and efficiency of Brinell hardness test.
The utility model is achieved through the following technical solutions:Impression measurement apparatus is used in the detection of metal Brinell hardness tester, Including magnetic switch portion and microscope fixed part,
The magnetic switch portion includes two semicircle soft iron pipes, encloses two pieces outside two semicircle soft iron pipe convex surfaces respectively Cast iron seat, two semicircle soft iron pipes and two pieces of cast iron seat splits cause middle part to form cylindrical cavity, and stitching portion passes through Huang Copper spacer layer comes;The cylindrical empty intracavitary is provided with permanent magnet, two pole end pieces of permanent magnet respectively with cylindrical empty cavity wall It is rotatably assorted, cast iron seat outer cup is provided with the outer cover closed with its match profiles, is stretched in the middle part of permanent magnet to outer cover extension provided with knob;
The microscope fixed part includes and the integrally formed fixed seat of outer cover, the bottom surface of the fixed seat and shroud floor In same level, the jack for nested reading microscope bottom is offered in the middle part of fixed seat, fixed seat the week side of boss is at least One lock-screw locks cooperation through fixed seat avris and with the reading microscope bottom in jack.
As the further improvement of technical solutions of the utility model, being provided with the top of the outer cover can bending for connecting freedom Screw thread metal pipe screw, fixture is installed at the top of screw thread metal pipe.
As the further improvement of technical solutions of the utility model, it is identified with being engaged control magnetic with knob on the outer cover The ON/OFF mark of power switch portion magnetic force.
As the further improvement of technical solutions of the utility model, two pieces of cast iron seat bottoms are to contract at inner side Inclined-plane.
Impression measurement apparatus is used in metal Brinell hardness tester described in the utility model detection so that test specimen is not in measurement process It is easily mobile, it is convenient for measuring the test specimen of all size, and without external power supply in measurement process, expand the applicable model of the device Enclose, simple to operate, measurement accuracy is high, practical.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of metal Brinell hardness tester detection impression measurement apparatus described in the utility model.
Fig. 2 is the schematic diagram of magnetic switch portion magnetic attraction.
Fig. 3 is the schematic diagram that magnetic switch portion magnetic force is decontroled.
Fig. 4 is the connection diagram of magnetic switch portion and screw thread metal pipe.
Fig. 5 is magnetic switch portion and the connection diagram of microscope fixed part.
In figure:1- semicircle soft iron pipes, 2- cast iron seats, 3- layer of brass, 4- permanent magnets, 5- knobs, 6- outer covers, 7- fixed seats, 8- reading microscopes, 9- jacks, 10- screw thread metal pipes, 11- screws, 12- fixtures, 13- ON/OFF mark, 14- lock-screws.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.
Impression measurement apparatus, including magnetic switch portion and microscope fixed part are used in the detection of metal Brinell hardness tester,
The magnetic switch portion includes two semicircle soft iron pipes 1, encloses two outside two convex surfaces of semicircle soft iron pipe 1 respectively Block cast iron seat 2, two semicircle soft iron pipes 1 and two pieces of splits of cast iron seat 2 cause middle part to form cylindrical cavity, and stitching portion leads to Layer of brass 3 is crossed to be spaced apart;The cylindrical empty intracavitary is provided with permanent magnet 4, two pole end pieces of permanent magnet 4 respectively with cylinder Cavity wall is rotatably assorted, and the outer cup of cast iron seat 2 is provided with the outer cover 6 closed with its match profiles, and the middle part of permanent magnet 4 is to the extension of outer cover 6 Stretch and be provided with knob 5;
The microscope fixed part includes fixed seat 7 integrally formed with outer cover 6, bottom surface and the outer cover 6 of the fixed seat 7 In same level, the middle part of fixed seat 7 offers the jack 9 for the nested bottom of reading microscope 8, fixed seat 7 weeks for bottom surface At least one lock-screw 14 of side locks cooperation through the avris of fixed seat 7 and with the bottom of reading microscope 8 in jack 9.
Two semicircle soft iron pipes 1 are made of soft magnetic materials, and soft magnetic materials refers under weaker magnetic field, and magnetic easily occurs The Ferrite Material of change.When specifically used, by turning knob 5, to rotate the permanent magnet 4 of the inside.When turning knob 5 causes forever The two poles of the earth of magnet 4(N or S levels)In shown in Fig. 2 during direction, that is, during N the and S poles face semicircle soft iron pipe 1 of permanent magnet 4, half Circle soft iron pipe 1 is just magnetized, and has strong magnetic on this direction, can adsorb in metal surface(Iron).When turning knob 5 causes The two poles of the earth of permanent magnet 4 are in shown in Fig. 3 during direction, i.e. when N and S middle face semicircle soft iron pipe 1, the center of permanent magnet 4 Between only minimum magnetic, can be ignored, semicircle soft iron pipe 1 will not be magnetized, so now can be from metal surface (Iron)On remove metal Brinell hardness tester detection impression measurement apparatus.This addresses the problem current reading microscope 8 and impression The problem of relative position is mobile and fixed, impression diameter can be conveniently tested, improve the accuracy and effect of Brinell hardness test Rate.
Specifically, the top of the outer cover 6 be provided with for connect freely can bending screw thread metal pipe 10 screw 11, screw thread The top of metal tube 10 is provided with fixture 12.The facilities such as flashlight can be installed additional as desired by fixture 12, due to threaded metal Pipe 10 for freely can bending structure, can be with the lens barrel of bending to reading microscope 8 during use at, adopted so as to solve natural lighting The problem of light deficiency.
During concrete application, illumination can not also be realized by flashlight.Such as coated in the lens barrel of reading microscope 8 Phosphor powder layer, fluorescent material store luminous energy after being irradiated by natural light, daylight light, ultraviolet light etc., are stopping illumination After penetrating, then slowly discharged in a manner of fluorescence, so at night or dark, remain to see luminous, the duration Up to a few houres to ten a few houres.According to this characteristic of fluorescent material, fluorescent material is coated in the lens barrel inwall of reading microscope 8 Layer, by the self luminous characteristic of fluorescent material, effectively solves the problems, such as daylighting deficiency in natural lighting.
When it is implemented, it is identified with being engaged the ON/OFF mark of control magnetic switch portion magnetic force on the outer cover 6 with knob 5 Know 13(ON and OFF marks as depicted).When knob 5 gets to ON, magnetic switch portion produces magnetic force and can adsorbed in metal Surface(Such as iron)On, when getting to OFF, magnetic switch portion magnetic force disappears.
In addition, two pieces of bottoms of cast iron seat 2 are to the inclined-plane of contract at inner side.Convenient absorption is in on-plane surfaces such as arcs Special-shaped object surface, increase the scope of application.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power The protection domain that profit requires is defined.

Claims (4)

1. impression measurement apparatus is used in the detection of metal Brinell hardness tester, it is characterised in that is fixed including magnetic switch portion and microscope Portion,
The magnetic switch portion includes two semicircle soft iron pipes(1), enclose respectively located at two semicircle soft iron pipes(1)Two outside convex surface Block cast iron seat(2), two semicircle soft iron pipes(1)With two pieces of cast iron seats(2)Split causes middle part to form cylindrical cavity, and spells The place of connecing passes through layer of brass(3)It is spaced apart;The cylindrical empty intracavitary is provided with permanent magnet(4), permanent magnet(4)Two pole end pieces It is rotatably assorted respectively with cylindrical empty cavity wall, cast iron seat(2)Outer cup is provided with the outer cover closed with its match profiles(6), permanent magnet (4)Middle part is to outer cover(6)Outer extension is provided with knob(5);
The microscope fixed part includes and outer cover(6)Integrally formed fixed seat(7), the fixed seat(7)Bottom surface with it is outer Cover(6)Bottom surface is in same level, fixed seat(7)Middle part is offered for nested reading microscope(8)The jack of bottom (9), fixed seat(7)At least one lock-screw of the week side of boss(14)Through fixed seat(7)Avris and and jack(9)Interior reading shows Micro mirror(8)Bottom locking coordinates.
2. impression measurement apparatus is used in metal Brinell hardness tester detection according to claim 1, it is characterised in that the outer cover (6)Top be provided with for connect freely can bending screw thread metal pipe(10)Screw(11), screw thread metal pipe(10)Pacify at top Equipped with fixture(12).
3. impression measurement apparatus is used in metal Brinell hardness tester detection according to claim 1 or 2, it is characterised in that described Outer cover(6)On be identified with and knob(5)It is engaged the ON/OFF mark of control magnetic switch portion magnetic force(13).
4. impression measurement apparatus is used in metal Brinell hardness tester detection according to claim 3, it is characterised in that two block casting iron Seat(2)Bottom is to the inclined-plane of contract at inner side.
CN201720710366.7U 2017-06-19 2017-06-19 Impression measurement apparatus is used in the detection of metal Brinell hardness tester Active CN206804460U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107144482A (en) * 2017-06-19 2017-09-08 山西省计量科学研究院 Impression measurement apparatus is used in the detection of metal Brinell hardness tester
CN111157283A (en) * 2020-03-11 2020-05-15 西南科技大学 Portable manual hydraulic cutting ring geotome
CN112400102A (en) * 2018-04-23 2021-02-23 伊利诺斯工具制品有限公司 Hardness tester having a pivoting body and capable of providing electrical power to accessories thereon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107144482A (en) * 2017-06-19 2017-09-08 山西省计量科学研究院 Impression measurement apparatus is used in the detection of metal Brinell hardness tester
CN112400102A (en) * 2018-04-23 2021-02-23 伊利诺斯工具制品有限公司 Hardness tester having a pivoting body and capable of providing electrical power to accessories thereon
CN111157283A (en) * 2020-03-11 2020-05-15 西南科技大学 Portable manual hydraulic cutting ring geotome

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Address after: 030012 No. 106, Changzhi Road, Taiyuan, Shanxi

Patentee after: Shanxi inspection and Testing Center (Shanxi Institute of standard measurement technology)

Country or region after: China

Address before: 030002 No.29 Fuxi Street, Taiyuan City, Shanxi Province

Patentee before: SHANXI INSTITUTE OF METROLOGY

Country or region before: China