CN112630073B - Bolt hardness testing device - Google Patents
Bolt hardness testing device Download PDFInfo
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- CN112630073B CN112630073B CN202011504893.5A CN202011504893A CN112630073B CN 112630073 B CN112630073 B CN 112630073B CN 202011504893 A CN202011504893 A CN 202011504893A CN 112630073 B CN112630073 B CN 112630073B
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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
- G01N3/40—Investigating hardness or rebound hardness
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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
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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
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- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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- 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
- G01N2203/0098—Tests specified by its name, e.g. Charpy, Brinnel, Mullen
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- 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
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a bolt hardness testing device which comprises a testing auxiliary structure and a hardness tester fixing structure, wherein the hardness tester fixing structure can be fixed on the testing auxiliary structure. The auxiliary testing structure comprises an auxiliary measuring base, the auxiliary measuring base comprises a bottom plate, a left vertical plate is arranged on the left side of the bottom plate, a right vertical plate is arranged on the right side of the bottom plate, an arc-shaped clamping groove is formed in the outer wall of the left vertical plate in an outwards sunken mode, a movable fixing component is connected to the right vertical plate through threads, and the movable fixing component is matched with the arc-shaped clamping groove and can fix bolts on the auxiliary measuring base. The hardness meter fixed knot constructs including portable hardness meter support, but is provided with telescopic link on the portable hardness meter support, but the top of telescopic link is provided with trigger device, but the lower part of telescopic link is provided with hardness meter mounting fixture, and the centre gripping has the hardness meter on the hardness meter mounting fixture. The invention can meet the requirement that the mass of the bolt reaches 5kg during hardness measurement, and can also ensure that the portable Leeb hardness tester is convenient to place during measurement.
Description
Technical Field
The invention relates to the field of bolt hardness testing, in particular to a bolt hardness testing device.
Background
The DL/T439-2018 ' technical guide for high-temperature fasteners of thermal power plants ' stipulates the inspection rule that bolts with the specification of M32 and above should be subjected to 100% hardness inspection, and GB/T17394.1-2014 ' the first part of the metal material Richter hardness test: the test method requires that the minimum mass of a tested sample reaches 5kg, but the specification of partial bolts of the thermal generator set is larger than or equal to M32, the mass of the bolts does not reach 5kg, and the portable Richter hardness tester which is widely used at present cannot be used for testing conveniently and obtaining reliable test values.
If the mass of the bolt with the specification of being more than or equal to M32 and the mass of not more than 5kg needs to be measured in a standardized manner, the mass of the bolt during testing needs to be equal to or more than 5kg, the stability of the bolt during testing needs to be maintained, and therefore the testing operation is convenient, an auxiliary device needs to be customized, the problems of mass equivalent during testing and the stability of the bolt during testing need to be solved, and the testing working efficiency and the accuracy and reliability of testing data are greatly improved.
Present widely used carries out metal parts hardness test in production field is portable richter sclerometer, because the bolt specification is less, hardly possesses a test surface that has certain area so that place portable richter sclerometer probe, and artifical test is more difficult to the selected position and keeps the firm when testing, is difficult to guarantee test data's accuracy and reliability.
Disclosure of Invention
The invention provides a bolt hardness testing device, which can meet the weight requirement during bolt hardness testing and the setting problem of a Richter hardness tester, and aims to solve the problems that the existing bolt cannot achieve the mass of 5kg, cannot conveniently utilize a portable Richter hardness tester widely used at present to test and obtain a reliable testing numerical value, and cannot be conveniently placed.
The invention adopts the following technical scheme:
a bolt hardness testing device is characterized by comprising a testing auxiliary structure and a hardness tester fixing structure, wherein the hardness tester fixing structure can be fixed on the testing auxiliary structure;
the auxiliary testing structure comprises an auxiliary measuring base, the auxiliary measuring base comprises a bottom plate, a left vertical plate is arranged on the left side of the bottom plate, a right vertical plate is arranged on the right side of the bottom plate, the inner wall of the left vertical plate is outwards sunken to form an arc-shaped clamping groove, a movable fixing component is in threaded connection with the right vertical plate and can move left and right, and the movable fixing component is matched with the arc-shaped clamping groove to fix a bolt on the auxiliary measuring base;
the hardness meter fixed knot constructs including portable hardness meter support, but is provided with telescopic link on the portable hardness meter support, but the top of telescopic link is provided with trigger device, but the lower part of telescopic link is provided with hardness meter mounting fixture, and the centre gripping has the hardness meter on the hardness meter mounting fixture.
Preferably, the floor, left riser and right riser are a unitary structure.
Preferably, the movable fixing component comprises a transverse rotating shaft, and a movable end fixing head is connected to the left side of the rotating shaft.
Preferably, a connecting hole is formed in the side portion of the movable end fixing head, the left end of the rotating shaft is inserted into the connecting hole, and the left end of the rotating shaft can rotate in the connecting hole.
Preferably, a threaded hole penetrating through the right vertical plate is formed in the upper portion of the right vertical plate, threads are arranged on the rotating shaft, the rotating shaft is in threaded connection with the threaded hole, and the rotating shaft can rotate to move left and right.
Preferably, a rotating handle is provided to the right side of the rotating shaft.
Preferably, the bottom of the fixed head of the moving end is provided with a pulley which can slide on the bottom plate.
Preferably, the movable sclerometer support comprises two supporting legs, wherein the bottom parts of the supporting legs are provided with supporting leg seats, one of the supporting legs can be fixedly connected to the top of the left vertical plate through the supporting leg seat, and the other supporting leg can be fixedly connected to the top of the movable end fixing head through the supporting leg seat.
Preferably, the telescopic rod is vertically connected to the middle part of the movable hardness meter support, and the middle upper part of the telescopic rod can be stretched.
Preferably, the trigger means is capable of contacting a switch at the upper end of the hardness meter.
The invention has the beneficial effects that:
in the bolt hardness testing device, the test auxiliary structure can meet the requirement that the integral weight of the device after the device is installed with a test bolt meets the first part of a metal material Richter hardness test of GB/T17394.1-2014: the standard requirement of the test method reaches 5kg, and the requirement for testing the stability of the bolt can be met. Arc draw-in groove can with the pole portion looks adaptation of bolt, can be with firm the fixing on the auxiliary measuring base of bolt through removing fixed knot structure, the material of auxiliary measuring base can use the most ordinary carbon element structural steel A3 steel, alright guarantee that the base volume does not reach the requirement under the too big condition of quality, accomplish portable.
The hardness meter fixing structure is used for fixing a hardness meter and is fixed on the test auxiliary structure so as to keep the hardness meter probe and the bolt relatively stable and reduce the influence of human factors, so that the hardness meter fixing structure can conveniently and accurately measure and obtain accurate and reliable hardness values.
Because the specific model cannot be reused and has strong specificity, the manufacturing is difficult, time-consuming and labor-consuming, and the requirement of measuring the hardness of bolts with various field specifications cannot be met, the specific model is not required to be made according to the specific bolt, and the method has the characteristics of convenience in carrying, strong adjustability, reusability and few artificial interference factors.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a front view of a test aid structure of the present invention.
FIG. 2 is a top view of a test aid structure of the present invention.
FIG. 3 is a schematic view of the durometer holding structure of the present invention.
Fig. 4 is a schematic view of the durometer fixing structure after the installation of the durometer.
FIG. 5 is a schematic view of the durometer holding structure and the mounting of the durometer on the test aid structure.
1. An auxiliary measuring base; 2. a mobile end fixed head; 3. a rotating shaft; 4. rotating the handle; 5. a pulley; 6. a base plate; 7. a left vertical plate; 8. a right vertical plate; 9. an arc-shaped clamping groove; 10. a movable durometer support; 11. a telescopic rod; 12. a trigger device; 13. a hardness meter fixing clamp; 14. a hardness tester.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
With reference to fig. 1 to 5, a bolt hardness testing device comprises a testing auxiliary structure and a hardness tester fixing structure, wherein the hardness tester fixing structure can be fixed on the testing auxiliary structure, and the testing auxiliary structure and the hardness tester can be combined to realize the hardness testing of a bolt.
The test auxiliary structure includes auxiliary measurement base 1, and the auxiliary measurement base includes bottom plate 6, and the left side of bottom plate is provided with left side riser 7, and the right side of bottom plate is provided with right side riser 8.
The bottom plate 6, left riser 7 and right riser 8 are of unitary construction.
The material of the auxiliary measurement base is made of the most common carbon structural steel A3 steel, so that the quality of the base can meet the requirement under the condition of overlarge volume, and the carrying is facilitated.
The inner wall of the left vertical plate 7 is outwards sunken to form an arc-shaped clamping groove 9, and the shape of the arc-shaped clamping groove 9 is matched with the shape of a screw rod of a bolt.
Threaded connection has the removal fixed knot to construct on the right side riser 8, removes about the fixed knot constructs can, and the bolt can be placed in the arc draw-in groove, through removing the fixed knot structure with the bolt top tight in the arc draw-in groove to realize the bolt-up on the assistant measuring base.
Wherein, remove fixed knot and construct including horizontal rotation axis 3, the left side of rotation axis 3 is connected with and removes end fixed head 2.
The lateral part of the fixed end of the movable end is provided with a connecting hole, the left end of the rotating shaft 3 is inserted in the connecting hole, and the left end of the rotating shaft can rotate in the connecting hole. Guaranteed when the rotation axis rotates, remove the end fixed head and can not rotate along with the rotation axis, remove the end fixed head and only can remove under the rotation axis drives and move.
The upper portion of right side riser is seted up and is run through the screw hole of right side riser.
The rotating shaft is provided with threads, the rotating shaft is in threaded connection with the threaded hole, and the rotating shaft can move left and right in a rotatable mode through thread matching.
The right side of rotation axis is provided with twist grip 4, makes things convenient for the rotation axis to rotate.
The bottom of the fixed end of the movable end is provided with a pulley 5 which can slide on the bottom plate, thereby being convenient for the left and right movement of the whole movable fixed structure.
The cross section of the movable end fixing head is trapezoidal, the long bottom edge of the trapezoid faces the direction of the arc-shaped clamping groove, and the contact area between the movable end fixing head and the bolt is increased.
During the use, place the bolt in the arc draw-in groove, operation twist grip drives rotation axis for the rotation axis moves to the left, and the rotation axis drives and removes the end fixing head and slide left, with the tight arc draw-in groove in bolt top, plays fixing bolt's effect. The whole weight of whole auxiliary device and bolt reaches 5 kilograms, demand when satisfying the hardness measurement.
The sclerometer fixed knot constructs including portable sclerometer support 10, is provided with telescopic link 11 on the portable sclerometer support, and telescopic link's top is provided with trigger device 12, and telescopic link's lower part is provided with sclerometer mounting fixture 13, and the centre gripping has sclerometer 14 on the sclerometer mounting fixture.
Wherein, portable sclerometer support includes two landing legs, and the bottom of landing leg is provided with the landing leg seat, and one of them landing leg can fixed connection at the top of left side riser through the landing leg seat, and another one landing leg can fixed connection at the top of moving end fixed head through the landing leg seat.
Because the distance between the movable end fixing head and the left vertical plate depends on the diameter of the bolt, the distance is not a definite value, and therefore, the two supporting legs of the movable hardness tester support are arranged to be adjustable in distance, so that the movable hardness tester support is conveniently fixed on the movable end fixing head and the left vertical plate.
In fact, the variation range of the distance between the movable end fixing head and the left vertical plate is not large, and two supporting legs of the movable hardness tester support are set to be capable of finely adjusting the distance.
The telescopic rod 11 is vertically connected to the middle of the movable hardness meter support, and the middle upper part of the telescopic rod can stretch out and draw back.
Hardness meter mounting fixture 13 can be firm fixed suitable hardness meter, and hardness meter 14 is the test of a writing durometer, and anchor clamps can adjust the size in order to adapt to the test of a writing durometer of fixing different specifications.
After the pen test sclerometer is fixed, adjust the length of telescopic link for trigger device and the switch contact of sclerometer upper end, trigger device's effect replaces the switch that the staff triggered the sclerometer, thereby operates the sclerometer and carries out hardness detection. The trigger device makes the durometer operation more accurate because manual hand actuation of the switch of the durometer may cause human interference such as a shift in the durometer. The specific structure of the triggering device can be implemented by the prior art, and is not described in detail herein.
The hardness meter fixing structure can determine a test position and keep the hardness meter probe and the bolt relatively stable during bolt hardness measurement so as to reduce the influence of human factors, so that measurement can be conveniently and accurately carried out, and an accurate and reliable hardness value can be obtained.
Example 2
Combine fig. 1 to 5, a bolt hardness testing arrangement, including test auxiliary structure and sclerometer fixed knot structure, sclerometer fixed knot constructs can fix on test auxiliary structure, and both combine to realize the hardness test of bolt.
The test auxiliary structure includes auxiliary measurement base 1, and the auxiliary measurement base includes bottom plate 6, and the left side of bottom plate is provided with left side riser 7, and the right side of bottom plate is provided with right side riser 8.
The bottom plate 6, the left riser 7 and the right riser 8 are of unitary construction.
The material of the auxiliary measurement base is made of the most common carbon structural steel A3 steel, so that the requirement on the quality of the base under the condition of overlarge volume can be met, and the auxiliary measurement base is convenient to carry.
The inner wall of the left vertical plate 7 is outwards sunken to form an arc-shaped clamping groove 9, and the shape of the arc-shaped clamping groove 9 is matched with the shape of a screw rod of a bolt.
Threaded connection has the removal fixed knot to construct on the riser 8 of right side, removes fixed knot and constructs and can remove the removal, and the bolt can be placed in the arc draw-in groove, tightly pushes up the bolt in the arc draw-in groove through removing fixed knot to realize the bolt-up on the auxiliary measuring base.
Wherein, remove fixed knot and construct including horizontal rotation axis 3, the left side of rotation axis 3 is connected with and removes end fixed head 2.
The lateral part of the fixed end of the movable end is provided with a connecting hole, the left end of the rotating shaft 3 is inserted in the connecting hole, and the left end of the rotating shaft can rotate in the connecting hole. Guaranteed when the rotation axis rotates, remove the end fixed head and can not rotate along with the rotation axis, remove the end fixed head and only can remove under the rotation axis drives and move.
The upper portion of right side riser is seted up the screw hole that runs through right side riser.
The rotating shaft is provided with threads, the rotating shaft is in threaded connection with the threaded hole, and the rotating shaft can move left and right in a rotatable mode through thread matching.
The right side of rotation axis is provided with twist grip 4, makes things convenient for the rotation axis to rotate.
The bottom of the fixed end of the movable end is provided with a pulley 5 which can slide on the bottom plate, thereby being convenient for the left and right movement of the whole movable fixed structure.
The left surface of the fixed end of the movable end is an arc-shaped surface, the arc-shaped surface is opposite to the arc-shaped clamping groove, the arc-shaped surface is also adaptive to the shape of a screw rod of the bolt, and the arc-shaped surface is matched with the arc-shaped clamping groove, so that the bolt can be well fastened.
During the use, place the bolt in the arc draw-in groove, operation twist grip drives the rotation axis and rotates for the rotation axis moves to the left, and the rotation axis drives and removes the end fixed head and slide left, with the tight effect in the arc draw-in groove in bolt top, plays fixing bolt's effect. The whole weight of whole auxiliary device and bolt reaches 5 kilograms, demand when satisfying the hardness measurement.
The hardness meter fixed knot constructs including portable hardness meter support 10, is provided with telescopic link 11 on the portable hardness meter support, and telescopic link's top is provided with trigger device 12, and telescopic link's lower part is provided with hardness meter mounting fixture 13, and the centre gripping has hardness meter 14 on the hardness meter mounting fixture.
Wherein, portable sclerometer support includes two landing legs, and the bottom of landing leg is provided with the landing leg seat, and one of them landing leg can fixed connection at the top of left side riser through the landing leg seat, and another one landing leg can fixed connection at the top of moving end fixed head through the landing leg seat.
Because the distance between the movable end fixing head and the left vertical plate depends on the diameter of the bolt, the distance is not a definite value, and therefore, the two supporting legs of the movable hardness tester support are arranged to be adjustable in distance, so that the movable hardness tester support is conveniently fixed on the movable end fixing head and the left vertical plate.
In fact, the variation range of the distance between the movable end fixing head and the left vertical plate is not large, and two supporting legs of the movable hardness tester support are arranged to be capable of finely adjusting the distance.
The telescopic rod 11 is vertically connected to the middle of the movable hardness meter support, and the middle upper part of the telescopic rod can stretch out and draw back.
Hardness meter mounting fixture 13 can be firm fixed suitable hardness meter, and hardness meter 14 is the test of a writing durometer, and anchor clamps can adjust the size in order to adapt to the test of a writing durometer of fixing different specifications.
After the pen test sclerometer is fixed, adjust the length of telescopic link for trigger device and the switch contact of sclerometer upper end, trigger device's effect replaces the switch of staff trigger sclerometer, thereby the operation sclerometer carries out hardness detection. The trigger device makes the durometer operation more accurate because manual hand actuation of the switch of the durometer may cause human interference such as a shift in the durometer. The specific structure of the trigger device can be implemented by the prior art, and is not described herein again.
The hardness meter fixing structure can determine a test position and keep the hardness meter probe and the bolt relatively stable during bolt hardness measurement so as to reduce the influence of human factors, thereby conveniently and accurately measuring and obtaining an accurate and reliable hardness value.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (8)
1. A bolt hardness testing device is characterized by comprising a testing auxiliary structure and a hardness tester fixing structure, wherein the hardness tester fixing structure can be fixed on the testing auxiliary structure;
the auxiliary testing structure comprises an auxiliary measuring base, the auxiliary measuring base comprises a bottom plate, a left vertical plate is arranged on the left side of the bottom plate, a right vertical plate is arranged on the right side of the bottom plate, the inner wall of the left vertical plate is outwards sunken to form an arc-shaped clamping groove, a movable fixing component is in threaded connection with the right vertical plate and can move left and right, and the movable fixing component is matched with the arc-shaped clamping groove to fix a bolt on the auxiliary measuring base; the movable fixing component comprises a transverse rotating shaft, and the left side of the rotating shaft is connected with a movable end fixing head;
the hardness meter fixing structure comprises a movable hardness meter support, a telescopic rod is arranged on the movable hardness meter support, a trigger device is arranged at the top of the telescopic rod, a hardness meter fixing clamp is arranged at the lower part of the telescopic rod, and a hardness meter is clamped on the hardness meter fixing clamp; the movable sclerometer support comprises two support legs, wherein the bottom of each support leg is provided with a support leg seat, one support leg can be fixedly connected to the top of the left vertical plate through the support leg seat, and the other support leg can be fixedly connected to the top of the movable end fixing head through the support leg seat; two supporting legs of the movable durometer support are arranged to be adjustable in distance;
the auxiliary measuring base is made of the most common carbon structural steel A3 steel;
the measured bolt is a bolt with the specification of being more than or equal to M32 and the mass of not more than 5 kg; the whole weight of whole auxiliary device and bolt reaches 5 kilograms, demand when satisfying the hardness measurement.
2. The bolt hardness testing device of claim 1, wherein the bottom plate, the left riser and the right riser are of a unitary construction.
3. The bolt hardness testing device according to claim 1, wherein a connecting hole is formed in a side portion of the movable end fixing head, a left end of the rotating shaft is inserted into the connecting hole, and the left end of the rotating shaft can rotate in the connecting hole.
4. The bolt hardness testing device of claim 1, wherein a threaded hole penetrating through the right vertical plate is formed in the upper portion of the right vertical plate, a thread is formed in the rotating shaft, the rotating shaft is in threaded connection with the threaded hole, and the rotating shaft can rotate to move left and right.
5. The bolt hardness testing device according to claim 1, wherein a rotating handle is arranged on the right side of the rotating shaft.
6. The bolt hardness testing device of claim 1, wherein the bottom of the movable end fixing head is provided with a pulley, and the pulley can slide on the bottom plate.
7. The bolt hardness testing device according to claim 1, wherein the telescopic rod is vertically connected to the middle of the movable hardness tester support, and the middle upper part of the telescopic rod can be stretched.
8. The bolt hardness testing device according to claim 1, wherein the trigger device is capable of contacting a switch at the upper end of the hardness tester.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504893.5A CN112630073B (en) | 2020-12-18 | 2020-12-18 | Bolt hardness testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504893.5A CN112630073B (en) | 2020-12-18 | 2020-12-18 | Bolt hardness testing device |
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| CN112630073A CN112630073A (en) | 2021-04-09 |
| CN112630073B true CN112630073B (en) | 2023-03-31 |
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| CN202011504893.5A Active CN112630073B (en) | 2020-12-18 | 2020-12-18 | Bolt hardness testing device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209102546U (en) * | 2018-10-11 | 2019-07-12 | 东莞市中旺精密仪器有限公司 | A kind of Portable roller cylinder Plating measurement hardometer |
| CN211576840U (en) * | 2020-01-08 | 2020-09-25 | 南京莫杰斯能源科技有限公司 | Lithium battery surface hardness detection device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361034A (en) * | 1981-02-13 | 1982-11-30 | King Tester Corporation | Portable hardness tester |
| CN205449659U (en) * | 2016-03-22 | 2016-08-10 | 山东科技大学 | Novel hardness test centre gripping device |
| CN205665125U (en) * | 2016-06-04 | 2016-10-26 | 海盐鑫标模具制造有限公司 | Rockwell hardness tester |
| CN208636167U (en) * | 2018-08-23 | 2019-03-22 | 长沙益江机械有限公司 | New Hardness Testing Device is used in a kind of production of auto parts and components |
| CN211877662U (en) * | 2020-04-02 | 2020-11-06 | 苏州华桥制罐有限公司 | Hardness testing device of white solvent barrel |
| CN111829909A (en) * | 2020-08-07 | 2020-10-27 | 广州珠江天然气发电有限公司 | Hardness tester |
-
2020
- 2020-12-18 CN CN202011504893.5A patent/CN112630073B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209102546U (en) * | 2018-10-11 | 2019-07-12 | 东莞市中旺精密仪器有限公司 | A kind of Portable roller cylinder Plating measurement hardometer |
| CN211576840U (en) * | 2020-01-08 | 2020-09-25 | 南京莫杰斯能源科技有限公司 | Lithium battery surface hardness detection device |
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| CN112630073A (en) | 2021-04-09 |
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