CN214539057U

CN214539057U - Indentation tester of easily operating

Info

Publication number: CN214539057U
Application number: CN202120708986.3U
Authority: CN
Inventors: 吴懿
Original assignee: Shanghai Huayi Inspection Technology Co ltd
Current assignee: Shanghai Huayi Inspection Technology Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-10-29
Anticipated expiration: 2031-04-07

Abstract

The application relates to an indentation tester easy to operate, and belongs to the technical field of measuring instruments. The device comprises an indenter and a microscope device, wherein the indenter comprises an indenter body, two support pins and a pressure head, the two support pins and the pressure head are arranged on the same side of the indenter body, the vertical distance from one end, far away from the indenter body, of each support pin to the indenter body is equal to the vertical distance from one side, far away from the indenter body, of each pressure head to the indenter body, and the microscope device is used for measuring the length of an indentation. According to the scheme, the pressure is not required to be adjusted in the measuring process, so that the stability of the pressure can be kept, the operation is simple and convenient, and the measuring efficiency is improved while the measuring precision of the hardness of the coating is effectively improved.

Description

Indentation tester of easily operating

Technical Field

The application relates to the field of measuring instruments, in particular to an indentation tester easy to operate.

Background

The hardness measuring method of the coating is a measuring method of pressing an indenter into the coating, measuring the indentation length in the coating and calculating the hardness of the coating by using the indentation length. The indentation tester is one kind of equipment for implementing the method.

Chinese patent with patent number CN208505810U discloses a portable direct-reading brinell hardness tester, including supporting seat, head measuring body, hand wheel, adjusting screw, power measurement mechanism, pressure head, the head measuring body set up on the supporting seat, and the internal thread that is provided with of head measuring, adjusting screw and head measuring body threaded connection, adjusting screw's upper end and hand wheel connection, the lower extreme is connected with power measurement mechanism, power measurement mechanism lower extreme be provided with the pressure head. The adjusting screw rod is rotated through the hand wheel, so that the force measuring mechanism and the pressure head are controlled to move up and down along the axial direction, the hand wheel is used for adjusting the applied pressure, great strength is required to be consumed, the constancy of the applied pressure cannot be guaranteed in the loading process, and the measurement precision of the Brinell hardness value is influenced.

Based on this, this application provides an indentation tester of easy operation to solve above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

In order to help improve the measurement accuracy of the coating hardness, the application provides an indentation tester which is easy to operate.

The application provides an indentation tester of easily operating adopts following technical scheme:

the indentation tester easy to operate comprises an indentation instrument and a microscopic device, wherein the indentation instrument comprises an indentation instrument body, two support needles and a pressure head, the two support needles and the pressure head are installed on the same side of the indentation instrument body, the vertical distance from one end, far away from the indentation instrument body, of each support needle to the indentation instrument body is equal to the vertical distance from one side, far away from the indentation instrument body, of the pressure head to the indentation instrument body, and the microscopic device is used for measuring the length of an indentation.

By adopting the technical scheme, when the hardness of the coating is tested, firstly, the surface level of the coating to be tested is ensured, the pressure head is pressed on the testing position of the coating to be tested, meanwhile, the two supporting pins are abutted against the surface of the coating to be tested, so that the indenter is enabled to be horizontally placed, after the indenter is horizontally placed for a period of time, the length of the indentation is measured by using a microscopic device, finally, the Brinell hardness of the coating at this time is calculated according to the measured indentation length, and the subsequent multiple measurements are carried out to obtain an average value, so that the accurate measurement of the hardness of the coating is realized. According to the scheme, the applied pressure does not need to be adjusted in the measuring process, so that the stability of the applied pressure can be kept, the operation is simple and convenient, the measuring efficiency is improved, and the measuring precision of the hardness of the coating is effectively improved.

Optionally, the microscope device includes the cover body, solid fixed ring and microscope body, the cover body is the truncated cone setting, gu fixed ring fixes the top surface at the cover body, the microscope body passes through solid fixed ring and cover body fixed connection, the bottom side of the cover body can cover all sides at the indentation, the cover body is made by transparent material, the observation direction of microscope body is perpendicular towards the indentation.

Through adopting above-mentioned technical scheme, the setting up of the cover body makes the microscope body can remain stable in the observation process, reduces the influence of external factors such as dust to the detection simultaneously to guaranteed indentation length measurement's accuracy, and then improved coating hardness measurement's accuracy nature.

Optionally, a connecting rod is fixed on the outer peripheral surface of the fixing ring, a clamping ring is arranged at one end, away from the fixing ring, of the connecting rod, an irradiation cylinder is installed in the clamping ring, an extension line of the irradiation direction of the irradiation cylinder is intersected with the central axis of the microscope body, and a light supplementing opening is formed in one side, facing the irradiation cylinder, of the cover body.

By adopting the technical scheme, the position of the indentation is irradiated by the irradiation cylinder to realize light supplement at the position of the indentation, so that the accuracy of observing the length of the indentation by a tester is improved.

Optionally, one side that the snap ring is close to the connecting rod is fixed with the connecting block, the connecting rod has been seted up near the one end of snap ring, the connecting block wears to locate in the spread groove and is connected with the cell wall of spread groove, the tie point of connecting block and spread groove is established to the turning point, the snap ring can use the turning point to rotate along vertical face as the centre of a circle.

Through adopting above-mentioned technical scheme, such being provided with does benefit to the tester to adjust the angle of illumination that shines a section of thick bamboo to the tester can carry out the light filling to the indentation position according to actual environment condition, improves the precision of surveing.

Optionally, the snap ring is semi-annular, the snap ring has elasticity, and the inner wall joint of snap ring shines the outer wall of a section of thick bamboo.

Through adopting above-mentioned technical scheme, such being provided with does benefit to quick assembly disassembly and shines a section of thick bamboo, improves the convenience that a section of thick bamboo was shone in the dismouting.

Optionally, the coating level measuring device further comprises a level meter, wherein the level meter is used for measuring the level condition of the measured coating.

Through adopting above-mentioned technical scheme, supporting spirit level to the tester is according to the horizontal condition on spirit level short-term test coating surface that awaits measuring, ensures that the coating that awaits measuring keeps the level when measuring, guarantees measurement accuracy.

Optionally, the device further comprises a template, wherein support pin positioning holes penetrating the thickness of the plate are formed in the positions, corresponding to the two support pins, of the template, and indentation positioning holes penetrating the thickness of the plate are formed in the positions, corresponding to the pressure head, of the template.

By adopting the technical scheme, the painting brush is used for penetrating through the supporting needle positioning hole and the indentation positioning hole to mark the position to be measured, so that the indenter can be accurately placed at the position to be measured, meanwhile, the microscopic device can be conveniently and quickly aligned to the indentation position, and the measurement efficiency is improved.

Optionally, the coating testing device further comprises a timer, wherein the timer is used for calculating the time when the pressure head presses the tested coating and calculating the time when the pressure head leaves the tested coating.

By adopting the technical scheme, in the measuring process, after the pressure head is pressed against the measured coating, a timer is required to count down T1, the indenter is moved away after T1 is finished, then the time T2 is counted down, the indentation length is measured by using a microscopic device after T2 is finished, and the Brinell hardness value is calculated by utilizing the indentation length. The arrangement can reduce the influence of coating recovery on the measurement result, and further improve the measurement precision.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the scheme, the applied pressure does not need to be adjusted in the measuring process, so that the stability of the applied pressure can be kept, the operation is simple and convenient, the measuring efficiency is improved, and the measuring precision of the hardness of the coating is effectively improved;

2. the arrangement of the cover body enables the microscope body to be stable in the observation process, and meanwhile, the influence of external factors such as dust on detection is reduced, so that the accuracy of measuring the length of the indentation is ensured, and the accuracy of measuring the hardness of the coating is improved;

3. the connecting block is arranged to be beneficial to the tester to adjust the irradiation angle of the irradiation cylinder, so that the tester can supplement light to the indentation position according to the actual environment condition, and the observation precision is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an indenter according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a microscope device according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a template according to an embodiment of the present application.

Description of reference numerals: 1. an indentation instrument; 11. an indentor body; 111. an anti-slip groove; 112. mounting grooves; 12. a pressure head; 121. a boss portion; 13. a supporting needle; 2. a microscopic device; 21. a cover body; 211. a light compensating port; 22. a fixing ring; 23. a microscope body; 3. irradiating a cylinder; 31. a connecting rod; 32. connecting grooves; 33. connecting blocks; 34. a snap ring; 4. a template; 41. a supporting needle positioning hole; 42. impressing the positioning holes; 5. a level gauge; 6. a timer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses indentation tester of easy operation. Referring to fig. 1, the indentation tester comprises an indentation apparatus 1, a microscope apparatus 2, a template 4, a level gauge 5 and a timer 6, wherein the apparatuses are used in cooperation to achieve the purpose of measuring the length of an indentation. Firstly, measuring the surface level condition of a coating to be measured by using a level meter 5 to ensure the surface level of the coating to be measured, then marking a position to be measured by using a template 4, then pressing the position to be measured by using an indenter 1, counting down by using a timer 6, moving the indenter 1 after counting down for a period of time, measuring the length of an indentation by using a microscope 2 after continuing counting down for a period of time by using the timer 6, and finally calculating the Brinell hardness by using the length of the indentation.

Referring to fig. 2, the indenter 1 includes an indenter body 11, a pressing head 12 and two supporting pins 13, and strip-shaped anti-slip grooves 111 are provided on two sides of a vertical surface of the indenter body 11, so that a tester can take the indenter body 11. Wherein, the indenter fuselage 11 has seted up mounting groove 112 adjacent to the one side center of antiskid groove 111, and pressure head 12 passes through the fix with screw in mounting groove 112, and the central axis of pressure head 12 sets up along the horizontal direction to be parallel with the thickness direction of indenter fuselage 11. A part of the indenter 12 extends downwards to form the indenter body 11, and meanwhile, a protrusion 121 is integrally formed at the center of the circumferential outer peripheral surface of the indenter 12, and during measurement, the protrusion 121 abuts against the surface of the coating to be measured, so that the formation of an indentation is ensured.

In addition, two support pins 13 are fixed on the indenter body 11 on the same side of the indenter 12 extending out of the indenter body 11, the two support pins 13 are arranged away from the indenter 12, and a horizontal perpendicular bisector of a central connecting line of the two support pins 13 is located in a vertical plane surrounded by the protrusion 121. Meanwhile, the distance from the bottom end of the support pin 13 to the bottom side of the indenter body 11 is equal to the distance from the bottom side of the protrusion 121 to the bottom side of the indenter body 11, so that when the two support pins 13 and the pressure head 12 are pressed against the surface of the coating to be measured, the indenter body 11 can be horizontally placed, and complete forming of indentation is ensured. In this embodiment, the supporting pin 13 and the pressure head 12 are both made of hardened steel, which improves the wear resistance.

Referring to fig. 3, microscope device 2 includes the cover body 21, solid fixed ring 22 and microscope body 23, and the cover body 21 is the truncated cone setting, and the external diameter of the cover body 21 is from up reducing gradually down, and the cover body 21 adopts transparent material to make, and solid fixed ring 22 fixes the top side at the cover body 21, and microscope body 23 is installed in solid fixed ring 22 along vertical direction, and the objective of microscope body 23 extends to in the cover body 21. During measurement, the cover body 21 is vertically pressed on the periphery of the indentation, and light rays irradiate the position of the indentation through the cover body 21 so as to facilitate observation of a tester.

In order to further facilitate the observation of the indentation by a tester, a connecting rod 31 which inclines downwards is integrally formed on the peripheral surface of the fixing ring 22, a connecting groove 32 is formed in one end, away from the fixing ring 22, of the connecting rod 31, a connecting block 33 is fixed in the connecting groove 32 through a shaft nail, a clamping ring 34 is integrally formed on one side, away from the connecting rod 31, of the connecting block 33, an irradiation cylinder 3 is clamped in the clamping ring 34, the irradiation end of the irradiation cylinder 3 inclines towards the indentation position to be tested, and the extension line of the irradiation direction of the irradiation cylinder 3 is intersected with the central axis of the microscope body 23.

Meanwhile, a light compensating opening 211 is formed in one side, facing the irradiation cylinder 3, of the cover body 21, so that light rays of the irradiation cylinder 3 can enter the cover body 21 through the light compensating opening 211, and the brightness of the position of the indentation to be measured is improved. Wherein, the connecting block 33 can use the axis nail as the axis of rotation and rotate in the vertical plane to can adjust the angle that shines the indentation position of the section of thick bamboo 3, improve observation accuracy. Meanwhile, the snap ring 34 is disposed in a semi-annular shape and has elasticity, so that the tester can conveniently snap the irradiation cylinder 3 into the snap ring 34 from the side.

Referring to fig. 2 and 4, the template 4 is provided with support pin positioning holes 41 with a through plate thickness corresponding to the positions of the two support pins 13, the template 4 is provided with indentation positioning holes 42 with a through plate thickness corresponding to the positions of the indenter 12, the indentation positioning holes 42 are larger than the thickness of the indenter 12, and a tester can mark a position to be tested by using a painting brush to pass through the support pin positioning holes 41 and the indentation positioning holes 42, so as to facilitate subsequent testing and observation.

Referring to fig. 1, in the present embodiment, the level 5 is a circular bubble level 5 for quick taking and placing, and the timer 6 is a digital timer 6 for quick time identification.

The implementation principle of the indentation tester easy to operate in the embodiment of the application is as follows: s1, placing the level meter 5 on the surface of the coating to be measured to ensure that the surface of the coating to be measured is horizontal; s2, marking the test position by using the template 4; s3, placing the indenter body 11 on the surface of the coating to be measured, placing the supporting pins 13 on two marked points, slowly lowering the pressure head 12 to enable the convex part 121 to contact the marked position to be measured, and starting to count down for 30 seconds by using the timer 6; s4, after the 30 seconds, removing the indenter 1 from the surface of the coating to be measured, and counting down for 35 seconds by using the timer 6; s5, measuring the length of the indentation by using a microscope device 2 after 35 seconds; and S6, calculating the hardness of the surface of the coating to be measured by using the indentation length.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An indentation tester of easy operation which characterized in that: the device comprises an indenter (1) and a microscope device (2), wherein the indenter (1) comprises an indenter body (11), two support needles (13) and a pressure head (12) which are arranged on the same side of the indenter body (11), the vertical distance from one end, far away from the indenter body (11), of each support needle (13) to the indenter body is equal to the vertical distance from one side, far away from the indenter body (11), of the pressure head (12) to the indenter body, and the microscope device (2) is used for measuring the length of an indentation.

2. An indentation tester easy to handle as claimed in claim 1, characterized in that: the microscope device (2) comprises a cover body (21), a fixing ring (22) and a microscope body (23), wherein the cover body (21) is arranged in a truncated cone shape, the fixing ring (22) is fixed on the top surface of the cover body (21), the microscope body (23) is fixedly connected with the cover body (21) through the fixing ring (22), the bottom side of the cover body (21) can cover the periphery of an indentation, the cover body (21) is made of a transparent material, and the observation direction of the microscope body (23) faces the indentation perpendicularly.

3. An indentation tester easy to handle as claimed in claim 2, characterized in that: the outer peripheral face of solid fixed ring (22) is fixed with connecting rod (31), the one end that solid fixed ring (22) was kept away from in connecting rod (31) is provided with snap ring (34), install in snap ring (34) and shine a section of thick bamboo (3), the extension line of the direction of illumination of shining a section of thick bamboo (3) intersects with the central axis of microscope body (23), light filling mouth (211) have been seted up towards one side of shining a section of thick bamboo (3) to the cover body (21).

4. An indentation tester as claimed in claim 3, characterized in that: one side that snap ring (34) are close to connecting rod (31) is fixed with connecting block (33), connecting rod (31) are close to the one end of snap ring (34) and have seted up spread groove (32), connecting block (33) wear to locate in spread groove (32) and be connected with the cell wall of spread groove (32), the tie point of connecting block (33) and spread groove (32) is established to the pivot point, snap ring (34) can use the pivot point to rotate along vertical face as the centre of a circle.

5. An indentation tester as claimed in claim 3, characterized in that: the clamping ring (34) is semi-annular, the clamping ring (34) is elastic, and the inner wall of the clamping ring (34) is clamped with the outer wall of the irradiation cylinder (3).

6. An indentation tester easy to handle as claimed in claim 1, characterized in that: the device also comprises a level gauge (5), wherein the level gauge (5) is used for measuring the level condition of the measured coating.

7. An indentation tester easy to handle as claimed in claim 1, characterized in that: the die plate is characterized by further comprising a die plate (4), wherein support pin positioning holes (41) penetrating the thickness of the plate are formed in the positions, corresponding to the two support pins (13), of the die plate (4), and indentation positioning holes (42) penetrating the thickness of the plate are formed in the positions, corresponding to the pressure head (12), of the die plate (4).

8. An indentation tester easy to handle as claimed in claim 1, characterized in that: the coating testing device further comprises a timer (6), wherein the timer (6) is used for calculating the time when the pressure head (12) presses the tested coating and calculating the time when the pressure head (12) leaves the tested coating.