CN117433887B - Accurate bolt hardness measuring instrument and measuring method thereof - Google Patents
Accurate bolt hardness measuring instrument and measuring method thereof Download PDFInfo
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- CN117433887B CN117433887B CN202311766829.8A CN202311766829A CN117433887B CN 117433887 B CN117433887 B CN 117433887B CN 202311766829 A CN202311766829 A CN 202311766829A CN 117433887 B CN117433887 B CN 117433887B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 229920001971 elastomer Polymers 0.000 claims description 58
- 238000005498 polishing Methods 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 12
- 229920001821 foam rubber Polymers 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 7
- 238000007781 pre-processing Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
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- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000007542 hardness measurement Methods 0.000 abstract description 30
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000000576 coating method Methods 0.000 description 14
- 241001233242 Lontra Species 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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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
- G01N3/06—Special adaptations of indicating or recording means
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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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
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
- G01N3/44—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors being put under a minor load and a subsequent major load, i.e. Rockwell system
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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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
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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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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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)
- Acoustics & Sound (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of bolt hardness measurement and provides an accurate bolt hardness measuring instrument and a measuring method thereof, wherein the accurate bolt hardness measuring instrument comprises a workbench and a driving belt, a small motor is arranged at the side end of the workbench, a first threaded rod is connected to the output end of the small motor, the first threaded rod is rotatably connected in the workbench, a sliding block is connected to the first threaded rod in a threaded manner, the sliding block is limited and slidingly connected in the workbench, a first connecting frame is fixedly connected to the top end of the sliding block, a positioning assembly is arranged on the first connecting frame, a rack is fixedly connected to the top end of the first connecting frame, a Rockwell hardness meter is arranged on the workbench, and a detection head is arranged on the Rockwell hardness meter. Through above-mentioned technical scheme, the problem that bolt hardness measuring equipment among the prior art can not polish to the measurement terminal surface of bolt and clean the processing, and can not carry out hardness detection to a plurality of bolts simultaneously has been solved.
Description
Technical Field
The invention relates to the technical field of bolt hardness measurement, in particular to an accurate bolt hardness measuring instrument and a measuring method thereof.
Background
The bolt is used as one of standard components, is ubiquitous in industrial production, is an important fastener of industrial equipment, plays roles of connection, positioning, sealing and the like in mechanical components, is widely applied in mechanical manufacturing and mechanical equipment installation, and has very large dosage, so that the bolt needs to be subjected to spot check after production, and the strength of the bolt meets the use specification.
In the use process of the existing bolt hardness measurement equipment, for example, a bolt hardness test device with the publication number of CN112630073B has some problems, in the working process, although the bolt can be clamped and fixed, before the hardness measurement work is carried out on the bolt, the measurement end surface of the bolt cannot be polished and cleaned, so that impurities and a coating on the measured surface of the bolt are easy to interfere with the hardness measurement result of the bolt, and the measurement result is inaccurate; in order to ensure the accuracy of the bolt hardness measurement result, the bolts in the same batch need to be sampled and measured for multiple times, namely the hardness measurement work needs to be carried out on a plurality of bolts, but the existing hardness measurement equipment can only carry out hardness measurement on one bolt at a time in the working process, cannot carry out hardness detection on a plurality of bolts at the same time, has poor practicability and lower working efficiency, and the existing hardness measurement equipment has single functionality, can only carry out hardness measurement work and cannot carry out other performance detection on the bolts at the same time, so that the accurate bolt hardness measurement instrument and the measurement method thereof need to be provided to meet the demands of users.
Disclosure of Invention
The invention provides an accurate bolt hardness measuring instrument and a measuring method thereof, which solve the problems that bolt hardness measuring equipment in the related art cannot polish and clean the measuring end surface of a bolt, cannot detect the hardness of a plurality of bolts at the same time and cannot detect other performances of the bolts at the same time.
The technical scheme of the invention is as follows:
the utility model provides an accurate bolt hardness measuring apparatu, includes workstation and drive belt, small-size motor is installed to the side of workstation, small-size motor's output is connected with first threaded rod, first threaded rod rotates to be connected in the workstation, threaded connection has the sliding block on the first threaded rod, the spacing sliding connection of sliding block is in the workstation, the top fixedly connected with first linking frame of sliding block, install locating component on the first linking frame, the top fixedly connected with rack of first linking frame, install the Rockwell hardness meter on the workstation, install the detection head on the Rockwell hardness meter, the side fixedly connected with fixed plate of Rockwell hardness meter, fixedly connected with second linking frame on the bottom surface of fixed plate, install the preprocessing component in the second linking frame, the bottom of drive belt is connected on the screw rod, the screw rod passes through sealed bearing and rotates to be connected in the storage box, storage box fixedly connected with on the second linking frame, install locating component on the first linking frame, install the locating component on the first linking frame, install the second linking frame on the second link plate, install the ultrasonic wave guide sleeve and the ultrasonic testing device is connected with the end of a hose, the ultrasonic testing device is connected with the ultrasonic testing device, the ultrasonic testing device is connected with the end to the ultrasonic testing device through the end fixedly connected with the second connecting plate on the flexible hose, the end part of the hydraulic rod is provided with a pressure sensor, and the pressure sensor is fixedly connected with a push plate.
As a preferred embodiment of the present invention, wherein: the first threaded rod is connected to the middle part inside the workbench, the sliding block is fixed to the middle part at the bottom of the side end of the first connecting frame, the bottom end face of the first connecting frame is attached to the top end face of the workbench, racks are symmetrically distributed on two sides of the top of the first connecting frame, and the first connecting frame is made of transparent plastic.
As a preferred embodiment of the present invention, wherein: the positioning assembly comprises a positioning barrel, the positioning barrel is fixedly connected to the inner bottom end face of the first connecting frame, a second threaded rod is connected to the inner bottom end face of the first connecting frame in a rotating mode, a connecting plate is connected to the second threaded rod in a threaded mode, the connecting plate is connected to the positioning barrel in a limiting sliding mode, the positioning barrels are distributed in the first connecting frame at equal intervals, the second threaded rods are symmetrically distributed on two sides of the connecting plate, and the length of the second threaded rod is larger than that of the positioning barrel.
As a preferred embodiment of the present invention, wherein: the bottom fixedly connected with reset spring of positioning tube, reset spring's the other end fixedly connected with stopper, the spacing sliding connection of stopper is in the bottom of positioning tube, the top fixedly connected with direction clamp splice of stopper, direction clamp splice runs through sliding connection and is in the side of positioning tube, fixedly connected with rubber pad on the direction clamp splice, reset spring equiangular distribution is in the positioning tube, reset spring passes through the stopper with direction clamp splice one-to-one, the direction clamp splice is right triangle, the length of direction clamp splice is less than the length of positioning tube.
As a preferred embodiment of the present invention, wherein: the pretreatment component comprises air guide cylinders, the air guide cylinders are fixedly connected to the second connecting frame, the other ends of the air guide cylinders are connected with filter screen boxes, the bottoms of the filter screen boxes are magnetically adsorbed and connected with magnetic frames, connecting pipes are connected in the filter screen boxes in a rotating mode, exhaust fans and circular gears are fixedly connected to the connecting pipes, the air guide cylinders are symmetrically distributed on two sides of the second connecting frame, the air guide cylinders are in one-to-one correspondence with the filter screen boxes, the outer walls of the filter screen boxes are attached to the inner walls of the magnetic frames, the exhaust fans and the circular gears are symmetrically distributed on two sides of the connecting pipes, the directions of the exhaust fans on the two sides are the same, and the central axes of the connecting pipes and the central axes of the air guide cylinders are located on the same horizontal central line.
As a preferred embodiment of the present invention, wherein: the utility model discloses a connecting pipe, including connecting the otter board, the rotation is connected with the third threaded rod on the connecting the otter board, threaded connection has the screw thread loop bar on the third threaded rod, the tip fixedly connected with rubber piston of screw thread loop bar, the spacing sliding connection of rubber piston is in the connecting pipe, the terminal surface of connecting the otter board with the terminal surface parallel and level of connecting the pipe, the third threaded rod is connected the central part of connecting the otter board, rectangle is personally submitted to the cross section of connecting pipe inner space, the rubber piston with the inner wall of connecting the pipe laminating mutually.
As a preferred embodiment of the present invention, wherein: the connecting pipe is connected with a fixed pipe, the other end of the fixed pipe is connected with a fixed frame, a rubber air bag is fixedly connected to the fixed frame, a flexible polishing layer is arranged on the rubber air bag, air guide grooves are formed in the fixed frame in a penetrating mode, the fixed pipe is symmetrically distributed on the left side, the right side, the front side and the rear side of the connecting pipe, the end portion of the fixed pipe is communicated with the rubber air bag, the rubber air bag is semi-cylindrical, the rubber air bag and the air guide grooves are symmetrically distributed on the two sides of the fixed frame, the rubber air bag and the air guide grooves are alternately distributed, and the connecting pipe is connected with the top of the driving belt.
As a preferred embodiment of the present invention, wherein: the conveying cylinder is connected to the middle part of the storage box, the end part of the connecting hose is attached to the sponge cushion, the telescopic loop bars are symmetrically distributed on two sides of the first guide plate and two sides of the second guide plate respectively, the first guide plate and the second guide plate are semicircular, the shape and the size of the first guide plate are identical to those of the second guide plate, and the ultrasonic probe is installed at the middle part of the end part of the second guide plate.
As a preferred embodiment of the present invention, wherein: the hydraulic rods are distributed on the first connecting frame at equal intervals, the hydraulic rods correspond to the pushing plates one by one through the pressure sensors, and the bottom end height of the pushing plates is greater than the top end height of the positioning cylinder.
An accurate bolt hardness measurement method comprises the following steps:
s1: the positioning assembly is utilized to clamp and position a plurality of bolts, and then the tension strength of each bolt can be detected by utilizing the driving of each hydraulic rod and combining the pressure sensor and the push plate at the end part;
s2: the first threaded rod is driven by a small motor, each bolt can be driven to move towards the Rockwell hardness tester through a first connecting frame on the sliding block, in the moving process of the bolts, the paint can be coated on the bolts by using a foam cushion on the first guide plate for marking, and the bolts after tensile strength detection can be subjected to flaw detection by using an ultrasonic probe on the second guide plate;
s3: in the moving process of the bolts, the first connecting frame can drive the pretreatment assembly through the rack at the top, and polishing and cleaning treatment is carried out on the end measuring surfaces of all the bolts;
s4: the hardness of each bolt can be measured one by utilizing the matching of the Rockwell hardness tester and the detection head;
s5: after the measurement work is finished, each bolt moves and resets, the preprocessing component can clean the measured bolts again, and then each bolt can be detached.
The working principle and the beneficial effects of the invention are as follows:
1. the positioning assembly and the first threaded rod are arranged in the invention, the second threaded rod is utilized to rotate, the connecting plate in threaded connection can be driven to move downwards stably, and then each guide clamping block can be pushed to move into the positioning cylinder simultaneously, so that a plurality of bolts of the same batch can be clamped and positioned conveniently and stably, convenience and accuracy of subsequent hardness measurement work are ensured, then the first threaded rod is utilized to rotate, each bolt can be driven to move towards the Rockwell hardness tester through the first connecting frame on the sliding block, hardness of the plurality of bolts of the same batch can be measured one by utilizing the cooperation of the Rockwell hardness tester and the detection head, measurement errors are avoided, accuracy of measurement work is ensured, and after hardness measurement is carried out on the end parts of the bolts, hardness measurement is carried out on the tail parts of the bolts, accuracy of the measurement result is ensured, and measurement accuracy of the hardness measuring instrument is enhanced.
2. According to the invention, the pretreatment component is arranged, the first connecting frame drives each bolt to move towards the Rockwell hardness tester, the connecting pipe can be driven to stably rotate by utilizing the meshing of the racks and the circular gears, at the moment, the fixing frame can polish and clean the end faces of the bolts by utilizing the flexible polishing layer on the rubber air bags, so that pollutants or coatings on the end faces of the bolts are avoided, hardness measurement results are disturbed, meanwhile, dust and impurities generated by polishing and cleaning can be pumped into the filter screen box by the exhaust fan to be collected in the rotating process of the connecting pipe, environmental pollution is avoided, dust and impurities are prevented from adhering to the surface of the bolts again, hardness measurement results are disturbed, and due to the fact that the sizes of bolts in the same batch are the same, the flexible polishing layer on the rubber air bags can polish and clean the top end faces and the bottom end faces of the bolts in the same batch after turning direction, convenience and high efficiency of subsequent hardness measurement work are ensured, and when the bolts in different batches need to be pretreated, only the third threaded rod on the connecting screen plate is required to be rotated, the rubber piston on the threaded sleeve can charge and pump the rubber air bags on the fixing pipe, the rubber air bags and the rubber air bags on the rubber bags can be greatly adjusted, the rubber air bags on the fixing pipe and the rubber air bags can be stably contact with the flexible polishing layers, the flexible polishing layers can be adjusted, the flexible polishing layers can be stably, the polishing and the end faces can be stably measured, and the length of the end faces can be stably measured, and the device can be guaranteed, and the device can be stably and the measurement measured and can be conveniently and used conveniently and stably and conveniently adjusted.
3. According to the invention, after the bolts are clamped and positioned, the hydraulic rods, the first guide plates and the second guide plates are arranged, the hydraulic pushing is carried out on the end parts of the bolts by utilizing the driving of the hydraulic rods and combining the pressure sensor and the push plate at the end parts, whether the bolts are broken or not is observed by applying the same hydraulic pushing force, and then the tensile strength of each bolt can be detected, after the tensile strength is detected, the bolts move towards the Rockwell hardness tester, the connecting pipe can drive the spiral rods to automatically rotate through the transmission belt, the paint in the storage box can be conveyed to the sponge cushion on the first guide plates through the conveying cylinder, and as the first guide plates have a certain thickness, if the bolts after the tensile strength detection are bent, the coating width of the sponge cushion is reduced, so that workers can observe whether the bolts are bent conveniently and accurately by observing the coating width of the paint, meanwhile, the ultrasonic probe on the second guide plates is combined with the ultrasonic flaw detector to detect the bolts after the tensile strength detection, the multistage detection work of the bolts is realized, the use diversity of the measuring instrument is increased, and the measuring efficiency of the bolts is further improved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic perspective view of the whole structure of the present invention;
FIG. 2 is a schematic diagram of the overall main sectional structure of the present invention;
FIG. 3 is a schematic view of the main sectional structure of the positioning cylinder of the invention;
FIG. 4 is a schematic top view of a first connecting frame of the present invention;
FIG. 5 is a schematic view of a positioning barrel of the present invention in a top-down view;
FIG. 6 is a schematic diagram of the connection structure of the connecting pipe and the rubber piston according to the invention;
FIG. 7 is a schematic side view of a second connecting frame of the present invention;
FIG. 8 is a schematic view of the structure of FIG. 7A according to the present invention;
FIG. 9 is a schematic side cross-sectional view of a filter screen box of the present invention;
FIG. 10 is a schematic view of the main sectional structure of the fixing frame of the present invention;
FIG. 11 is a schematic side sectional view of a fixed frame of the present invention;
FIG. 12 is a schematic side sectional view of a connecting tube according to the present invention;
FIG. 13 is a schematic side sectional view of a telescoping rod assembly of the present invention;
FIG. 14 is a schematic view of a second connecting frame of the present invention in a top-down view;
fig. 15 is a schematic view showing a sectional depression of a screw rod according to the present invention.
In the figure: 1. a work table; 2. a small motor; 3. a first threaded rod; 4. a sliding block; 5. a first connection frame; 6. a positioning assembly; 601. a positioning cylinder; 602. a second threaded rod; 603. a splice plate; 604. a return spring; 605. a limiting block; 606. a guide clamping block; 607. a rubber pad; 7. a rack; 8. a fixing plate; 9. a second connection frame; 10. a pre-processing assembly; 1001. a gas cylinder; 1002. a filter screen box; 1003. a magnetic frame; 1004. a connecting pipe; 1005. an exhaust fan; 1006. connecting the net plates; 1007. a circular gear; 1008. a third threaded rod; 1009. a threaded sleeve rod; 1010. a rubber piston; 1011. a fixed tube; 1012. a fixed frame; 1013. a rubber air bag; 1014. a flexible polishing layer; 1015. an air guide groove; 11. a transmission belt; 12. a screw rod; 13. a storage bin; 14. a delivery cylinder; 15. a connecting hose; 16. a telescopic loop bar; 17. extruding a spring; 18. a first guide plate; 19. a sponge cushion; 20. a second guide plate; 21. an ultrasonic probe; 22. an ultrasonic flaw detector; 23. a Rockwell hardness tester; 24. a detection head; 25. a hydraulic rod; 26. a pressure sensor; 27. a push plate; 28. a pressure display gauge.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-15, the embodiment provides an accurate bolt hardness measuring instrument, which comprises a workbench 1 and a driving belt 11, wherein a small motor 2 is installed at the side end of the workbench 1, the output end of the small motor 2 is connected with a first threaded rod 3, the first threaded rod 3 is rotationally connected in the workbench 1, a sliding block 4 is connected on the first threaded rod 3 in a threaded manner, the sliding block 4 is in limited sliding connection in the workbench 1, the top end of the sliding block 4 is fixedly connected with a first connecting frame 5, a positioning component 6 is installed on the first connecting frame 5, a rack 7 is fixedly connected at the top end of the first connecting frame 5, a rockwell hardness meter 23 is installed on the workbench 1, a detection head 24 is installed on the rockwell hardness meter 23, a fixed plate 8 is fixedly connected at the side end of the rockwell hardness meter 23, a second connecting frame 9 is fixedly connected on the bottom end surface of the fixed plate 8, the pretreatment component 10 is arranged in the second connecting frame 9, the bottom of the transmission belt 11 is connected on the screw rod 12, the screw rod 12 is rotationally connected in the storage box 13 through a sealing bearing, the storage box 13 is fixedly connected on the second connecting frame 9, the conveying cylinder 14 is fixedly connected in the storage box 13, the end part of the conveying cylinder 14 is connected with the connecting hose 15, the telescopic sleeve rod 16 is fixedly connected in the second connecting frame 9, the extrusion spring 17 is fixedly connected in the telescopic sleeve rod 16, the end part of the telescopic sleeve rod 16 is fixedly connected with the first guide plate 18 and the second guide plate 20, the first guide plate 18 is fixedly connected with the sponge cushion 19, the end part of the connecting hose 15 is fixedly connected in the first guide plate 18, the end part of the second guide plate 20 is provided with the ultrasonic probe 21, the ultrasonic probe 21 is connected with the ultrasonic flaw detector 22 through a cable, the ultrasonic flaw detector 22 is arranged on the second connecting frame 9, the first connecting frame 5 is provided with the hydraulic rod 25 and the pressure indicator 28, the end part of the hydraulic rod 25 is provided with the pressure sensor 26, the pressure sensor 26 is fixedly connected with the push plate 27, the positioning component 6 is utilized to simultaneously carry out convenient and stable clamping positioning work on a plurality of bolts in the same batch, the convenience and accuracy of the subsequent hardness measurement work are ensured, the driving of each hydraulic rod 25 is utilized, the pressure sensor 26 and the push plate 27 at the end part are combined, the end part of the bolts can be hydraulically pushed, the same hydraulic pushing force is applied to observe whether the bolts are broken or not, the tensile strength of each bolt can be detected, then the first connecting frame 5 on the sliding block 4 can be utilized to drive each bolt to move towards the Rockwell hardness meter 23 by utilizing the threaded rotation of the first threaded rod 3, the hardness of a plurality of bolts of the same batch can be measured one by utilizing the cooperation of the Rockwell hardness tester 23 and the detection head 24, so that measurement errors are avoided, the accuracy of measurement is ensured, after the hardness measurement is carried out on the end parts of the bolts, the bolts can be turned to the direction, the hardness measurement is carried out on the tail parts of the bolts, the accuracy of the measurement results is ensured, the measurement accuracy of the hardness measuring instrument is enhanced, meanwhile, the use convenience of the measuring instrument is improved, and the first connecting frame 5 drives each bolt to move towards the Rockwell hardness tester 23, the end faces of the bolts can be automatically polished and cleaned by utilizing the pretreatment assembly 10, so that pollutants or coatings on the end faces of the bolts are avoided, and the hardness measurement results are disturbed.
Example 2
As shown in fig. 1 to 15, based on the same concept as that of the above embodiment 1, this embodiment also proposes an accurate bolt hardness measuring instrument and a measuring method thereof.
In this embodiment, first threaded rod 3 connects at workstation 1 inside middle part, and slider 4 is fixed in the middle part of first connection frame 5 side end bottom, and the bottom surface of first connection frame 5 laminates with the top face of workstation 1 mutually, and rack 7 symmetric distribution is in the top both sides of first connection frame 5, and first connection frame 5 is transparent plastic material, utilizes first connection frame 5 to keep apart the protection to the bolt, has avoided the bolt to carry out tensile strength testing process, and the piece splashes, leads to the injured problem of staff.
In this embodiment, positioning assembly 6 includes positioning tube 601, positioning tube 601 fixed connection is on the inside bottom end face of first connecting frame 5, rotate on the inside bottom end face of first connecting frame 5 and be connected with second threaded rod 602, threaded connection has adapter plate 603 on the second threaded rod 602, adapter plate 603 spacing sliding connection is on positioning tube 601, positioning tube 601 equidistance distributes in first connecting frame 5, second threaded rod 602 symmetric distribution is in the both sides of adapter plate 603, the length of second threaded rod 602 is greater than the length of positioning tube 601, the bottom fixedly connected with reset spring 604 of positioning tube 601, the other end fixedly connected with stopper 605 of reset spring 604, stopper 605 spacing sliding connection is in the bottom of positioning tube 601, the top fixedly connected with direction clamp block 606 of stopper 605, direction clamp block 606 runs through sliding connection at the side of positioning tube 601, fixedly connected with rubber pad 607 on the direction clamp block 606, reset spring 604 degree distributes in positioning tube 601, reset spring 604 is the triangle-shaped through stopper 605 and direction clamp block 606 equidistance one-to-one, the length of direction clamp block 606 is less than the both sides of positioning tube 601, the length of second threaded rod 602 is greater than the length of positioning tube 602, thereby can carry out stable and stable operation can guarantee the same screw bolt to the same time, and stable measurement can position the inside the same screw bolt 602, and stable operation can be moved down.
In this embodiment, the pretreatment component 10 includes an air cylinder 1001, the air cylinder 1001 is fixedly connected to the second connection frame 9, the other end of the air cylinder 1001 is connected with a filter screen box 1002, the bottom of the filter screen box 1002 is magnetically adsorbed and connected with a magnetic frame 1003, the filter screen box 1002 is rotationally connected with a connection pipe 1004, an exhaust fan 1005 and a circular gear 1007 are fixedly connected to the connection pipe 1004, the air cylinder 1001 is symmetrically distributed on two sides of the second connection frame 9, the air cylinder 1001 corresponds to the filter screen box 1002 one by one, the outer wall of the filter screen box 1002 is attached to the inner wall of the magnetic frame 1003, the exhaust fan 1005 and the circular gear 1007 are symmetrically distributed on two sides of the connection pipe 1004, the directions of the exhaust fans 1005 on two sides are the same, the central axis of the connection pipe 1004 and the central axis of the air cylinder 1001 are located on the same horizontal central axis, the first connection frame 5 drives each bolt to move towards the rockwell hardness meter 23, the connection pipe 1004 can be driven to stably rotate by using the engagement of the rack 7 and the circular gear 1007, dust and impurities generated by polishing and cleaning can be sucked into the filter screen box 1002 by the exhaust fan 1005 to be collected, environmental pollution is avoided, dust and impurities are attached to the surface again, and the hardness measurement result is disturbed.
In this embodiment, the connection otter board 1006 is fixedly connected with in the connection otter board 1004, rotate on the connection otter board 1006 and be connected with the third threaded rod 1008, threaded connection has the threaded sleeve 1009 on the third threaded rod 1008, the tip fixedly connected with rubber piston 1010 of threaded sleeve 1009, the spacing sliding connection of rubber piston 1010 is in the connection otter board 1004, the terminal surface of connection otter board 1006 and the terminal surface parallel and level of connection pipe 1004, the central part at connection otter board 1006 is connected to the third threaded rod 1008, the rectangle is personally submitted to the cross-section of connection pipe 1004 inner space, rubber piston 1010 is laminated with the inner wall of connection pipe 1004, because the same batch bolt size is the same, therefore utilize flexible polishing layer 1014 on rubber gasbag 1013 to polish with the bottom face after the direction of turning, guarantee convenient and high-efficient of follow-up hardness measurement work, and when need carry out preliminary treatment work to the bolt of different batches, only need rotate the third threaded rod 1008 on the connection otter board 1006, through the rubber piston 1010 on the threaded sleeve 1010 can aerify and bleed to the rubber gasbag 1013 on the fixed pipe 1011, and then can carry out the size adjustment to the rubber gasbag 1013, thereby guarantee that flexible layer 1013 can be adjusted and flexible layer and stable length can be guaranteed, the stable and the end face can be polished with the stable and can measure the length of the end face of the bolt is guaranteed.
In this embodiment, a fixing tube 1011 is connected to a connecting tube 1004, a fixing frame 1012 is connected to the other end of the fixing tube 1011, a rubber airbag 1013 is fixedly connected to the fixing frame 1012, a flexible polishing layer 1014 is provided on the rubber airbag 1013, air guide grooves 1015 are provided on the fixing frame 1012 in a penetrating manner, the fixing tube 1011 is symmetrically distributed on the left side, the right side, the front side and the rear side of the connecting tube 1004, the end of the fixing tube 1011 is communicated with the rubber airbag 1013, the rubber airbag 1013 is in a semi-cylinder shape, the rubber airbag 1013 and the air guide grooves 1015 are symmetrically distributed on the two sides of the fixing frame 1012, the rubber airbag 1013 and the air guide grooves 1015 are alternately distributed, the connecting tube 1004 is connected to the top of a driving belt 11, and in the rotation process of the connecting tube 1004, the fixing frame 1012 can polish and clean the end face of a bolt by using the flexible polishing layer 1014 on the rubber airbag 1013, so as to avoid pollutants or coatings on the end face of the bolt and interfere with the hardness measurement result.
In this embodiment, the conveying cylinder 14 is connected to the middle part of the storage tank 13, the end of the connecting hose 15 is attached to the foam-rubber cushion 19, the telescopic loop rods 16 are symmetrically distributed on two sides of the first guide plate 18 and two sides of the second guide plate 20 respectively, the first guide plate 18 and the second guide plate 20 are semicircular, the shape and size of the first guide plate 18 are the same as those of the second guide plate 20, the ultrasonic probe 21 is mounted on the middle part of the end of the second guide plate 20, the connecting pipe 1004 can drive the spiral rod 12 to automatically rotate through the driving belt 11 in the moving process of the bolt to the Rockwell hardness tester 23, the paint in the storage tank 13 can be conveyed to the foam-rubber cushion 19 on the first guide plate 18 through the conveying cylinder 14, and if the bolt after tensile strength detection is bent, the coating width of the foam-rubber cushion 19 is reduced, so that a worker can observe whether the bolt is bent or not through observing the coating width of the paint in multiple stages, and at the same time, the ultrasonic flaw detector 21 on the second guide plate 20 is utilized, the ultrasonic flaw detector 22 can detect the bolt in a plurality of stages, and the flaw detector can detect the bolt by using the ultrasonic flaw detector, and the flaw detector can detect the bolt more than the flaw detector, and the flaw detector can detect the bolt more efficiently.
In this embodiment, the hydraulic rods 25 are equidistantly distributed on the first connecting frame 5, the hydraulic rods 25 are in one-to-one correspondence with the push plates 27 through the pressure sensors 26, the bottom end height of the push plates 27 is greater than the top end height of the positioning cylinder 601, after the bolts are clamped and positioned, the hydraulic rods 25 are driven by the bolts, the end parts of the bolts can be hydraulically pushed by combining the pressure sensors 26 and the push plates 27 at the end parts, and whether the bolts are broken or not can be observed by applying the same hydraulic thrust, so that the tensile strength of the bolts can be detected.
It should be noted that, the present invention is an accurate bolt hardness measuring apparatus and a measuring method thereof, firstly, a worker can place three bolts of the same batch in each positioning cylinder 601 respectively, and place each bolt in the same state, then the worker can drive the threaded connection joint plates 603 to move downwards on each positioning cylinder 601 under the rotation action of the second threaded rods 602 at both sides, and then can contact with the inclined surfaces of the guide clamp blocks 606 under the movement action of the joint plates 603, and then can push each guide clamp block 606 to move into the positioning cylinder 601 simultaneously under the pushing action of the joint plates 603, and because the bolts of the same batch have the same size, and the movement distance of each guide clamp block 606 is the same under the pushing action of the joint plates 603, each bolt can be clamped and fixed in the corresponding positioning cylinder 601 simultaneously under the movement action of each guide clamp block 606, so as to complete the clamping and positioning work of each bolt 607;
after the bolts are clamped and positioned, by driving each hydraulic rod 25, under the driving action of each hydraulic rod 25, the pressure sensor 26 and the push plate 27 at the end part can be driven to move towards the bolts, further the end part of the bolts can be hydraulically pushed, whether the bolts are broken or not is observed through applying the same hydraulic pushing force, and further the tensile strength of each bolt can be detected, if the bolts are broken, the bolts are unqualified in strength, detection errors are avoided through detecting a plurality of bolts at the same time, after the tensile strength is detected, a worker can start the small motor 2 on the workbench 1 by controlling, at the moment, under the driving action of the small motor 2, the first threaded rod 3 can be driven to stably rotate in the workbench 1, at the moment, under the rotating action of the first threaded rod 3, the first connecting frame 5 can be driven to move towards the Rockwell hardness tester 23 through the sliding block 4 in threaded connection, in the process of moving the bolt to the Rockwell hardness tester 23, under the guiding action of the arc surfaces at the end parts of the first guide plate 18 and the second guide plate 20, the telescopic sleeve rod 16 and the extrusion spring 17 in the telescopic sleeve rod are combined to drive the first guide plate 18 and the second guide plate 20 to automatically contact with the bolt, at the moment, the foam-rubber cushion 19 on the first guide plate 18 can be stably contacted with the bolt, if the bolt is in the strength detection process, the foam-rubber cushion 19 is not completely attached to the bolt in the bending part contact process of the foam-rubber cushion 19 and the bolt, and the bending part of the bolt is not contacted with the foam-rubber cushion 19, so that the coating width is reduced when the coating on the foam-rubber cushion 19 is coated on the bolt, and a worker can conveniently and accurately observe whether the bolt is bent or not by observing the coating width of the coating, the ultrasonic probe 21 on the second guide plate 20 is combined with the ultrasonic flaw detector 22 to perform flaw detection on the bolts with the tensile strength resistance after detection;
in the process of moving the first connecting frame 5, the rack 7 at the top end can be driven to be meshed with the circular gear 1007, at this time, under the meshing driving action of the rack 7 and the circular gear 1007, the connecting pipe 1004 can be driven to stably rotate on the filter screen box 1002, at this time, under the rotating action of the connecting pipe 1004, the exhaust fans 1005 at two sides can be driven to simultaneously rotate, because the directions of the exhaust fans 1005 at two sides are the same, the exhaust fans 1005 at two sides can drive wind force to left or right under the rotating action, at the same time, under the rotating action of the connecting pipe 1004, the fixing frame 1012 on the fixing pipe 1011 can drive the rubber air bag 1013 to stably rotate, at this time, under the rotating action of the rubber air bag 1013, the flexible polishing layer 1014 can polish and clean the top end surface of the bolt in the moving process, so as to avoid pollutants or coatings on the end surface of the bolt and interfere with the hardness measurement result, meanwhile, in the rotation process of the connecting pipe 1004, dust and impurities generated by polishing and cleaning can be sucked into the filter screen box 1002 on the positioning cylinder 601 at one side through the wind power in the same direction generated by rotation of the exhaust fans 1005 at two sides to be collected, so that environmental pollution is avoided, dust and impurities are prevented from adhering to the surface of a bolt again to disturb the hardness measurement result, when the measurement work is finished, the magnetic frame 1003 can be conveniently and stably detached and installed only by utilizing the magnetic adsorption of the filter screen box 1002 and the magnetic frame 1003, so that the dust and impurities collected by suction can be conveniently and stably transported, meanwhile, the connecting pipe 1004 can drive the screw rod 12 to automatically rotate through the transmission belt 11, the paint in the storage box 13 can be automatically transmitted into the sponge cushion 19 on the first guide plate 18 through the transmission cylinder 14, the stability of the subsequent coating and marking work is ensured, the marking work after the bolt detection is finished, so that the confusion of the detected bolt and the undetected bolt is avoided;
the bolts can stably move to the Rockwell hardness tester 23, the hardness of the top ends of the bolts can be measured one by utilizing the cooperation of the Rockwell hardness tester 23 and the detection head 24, and after the measurement is finished, the first connecting frame 5 on the sliding block 4 can be driven to move and reset by the reverse rotation of the first threaded rod 3, so that each bolt can be driven to move and reset, in the resetting process, the connecting pipe 1004 can be driven to reversely rotate by utilizing the meshing of the racks 7 and the circular gears 1007, at the moment, the exhaust fans 1005 on two sides simultaneously reversely rotate, the wind directions are opposite, but the effects are the same, and therefore the end faces of the measured bolts can be cleaned and dust collecting work;
then, a worker can reversely rotate the second threaded rod 602, and then can drive the joint plate 603 to move upwards for resetting, at the moment, under the elastic action of the reset spring 604, each guide clamping block 606 can be driven to simultaneously move outwards through the limiting block 605 and separate from the bolt, at the moment, the bolt can be conveniently disassembled, then, the worker can turn the bolt to the direction so that the bottom end of the bolt is upward, then the positioning component 6 is driven again to clamp and fix the bolt, and then the bottom of the bolt can be subjected to tensile strength detection, end face polishing and cleaning and subsequent hardness measurement work through repeated operation;
because the same batch of bolts are the same in size, the flexible polishing layer 1014 on the rubber air bag 1013 is utilized, the top end face of the same batch of bolts and the bottom end face after the turning direction can be polished and cleaned, convenience and high efficiency of subsequent hardness measurement work are guaranteed, when different batches of bolts are required to be subjected to pretreatment work, only the third threaded rod 1008 on the connecting screen 1006 is required to be rotated, at the moment, under the rotation action of the third threaded rod 1008, the rubber piston 1010 can be driven to move inwards or outwards in the fixed pipe 1011 through the threaded sleeve rod 1009 in threaded connection, at the moment, under the movement action of the rubber piston 1010, the rubber air bag 1013 can be inflated and pumped, and the size of the rubber air bag 1013 can be conveniently adjusted, so that the flexible polishing layer 1014 and the end faces of bolts with different lengths can be guaranteed to be stably contacted, and the stability of subsequent polishing and cleaning work is guaranteed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides an accurate bolt hardness measuring apparatu, its characterized in that includes workstation (1) and drive belt (11), small-size motor (2) are installed to the side of workstation (1), the output of small-size motor (2) is connected with first threaded rod (3), first threaded rod (3) rotate and connect in workstation (1), threaded connection has sliding block (4) on first threaded rod (3), sliding block (4) spacing sliding connection is in workstation (1), the top fixedly connected with first connecting frame (5) of sliding block (4), install locating component (6) on first connecting frame (5), the top fixedly connected with rack (7) of first connecting frame (5), install on workstation (1) rockwell hardness meter (23), install on rockwell hardness meter (23) and detect head (24), the side fixedly connected with fixed plate (8) of rockwell hardness meter (23), terminal surface (8) are connected with first connecting frame (5), the top fixedly connected with rack (7) on first connecting frame (5), the top fixedly connected with rack (7), install on second connecting frame (12) in screw-type seal assembly (12) in screw connection (12), the utility model discloses a pressure sensor, including storage case (13), second connecting frame (9), storage case (13) fixedly connected with carries section of thick bamboo (14), the end connection of carrying section of thick bamboo (14) has coupling hose (15), fixedly connected with flexible loop bar (16) in second connecting frame (9), fixedly connected with extrusion spring (17) in flexible loop bar (16), the tip fixedly connected with first deflector (18) and second deflector (20) of flexible loop bar (16), fixedly connected with foam-rubber cushion (19) on first deflector (18), the end fixedly connected with of coupling hose (15) is in first deflector (18), ultrasonic probe (21) are installed to the end connection of second deflector (20), ultrasonic probe (21) are connected with ultrasonic flaw detector (22) through the cable, ultrasonic flaw detector (22) are installed on second connecting frame (9), install hydraulic pressure sensor (25) and display depression bar (28) on first connecting frame (5), hydraulic pressure sensor (26) are installed to the tip of second deflector (20).
2. The accurate bolt hardness tester according to claim 1, wherein: the utility model discloses a workbench, including workstation (1), sliding block (5), rack (7), sliding block, first threaded rod (3) are connected in workstation (1) inside middle part, sliding block (4) are fixed the middle part of first connection frame (5) side end bottom, the bottom face of first connection frame (5) with the terminal surface of workstation (1) is laminated mutually, rack (7) symmetric distribution is in the top both sides of first connection frame (5), first connection frame (5) are transparent plastics material.
3. The accurate bolt hardness tester according to claim 2, wherein: the positioning assembly (6) comprises a positioning cylinder (601), the positioning cylinder (601) is fixedly connected to the inner bottom end face of the first connecting frame (5), a second threaded rod (602) is rotationally connected to the inner bottom end face of the first connecting frame (5), a connecting plate (603) is connected to the second threaded rod (602) in a threaded mode, the connecting plate (603) is in limiting sliding connection with the positioning cylinder (601), the positioning cylinder (601) is equidistantly distributed in the first connecting frame (5), the second threaded rods (602) are symmetrically distributed on two sides of the connecting plate (603), and the length of the second threaded rod (602) is larger than that of the positioning cylinder (601).
4. A precision bolt hardness tester according to claim 3, characterised in that: the bottom fixedly connected with reset spring (604) of positioning tube (601), the other end fixedly connected with stopper (605) of reset spring (604), spacing sliding connection of stopper (605) is in the bottom of positioning tube (601), the top fixedly connected with direction clamp splice (606) of stopper (605), direction clamp splice (606) run through sliding connection and be in the side of positioning tube (601), fixedly connected with rubber pad (607) on direction clamp splice (606), reset spring (604) equiangular distribution is in positioning tube (601), reset spring (604) pass through stopper (605) with direction clamp splice (606) one-to-one, direction clamp splice (606) are right triangle, the length of direction clamp splice (606) is less than the length of positioning tube (601).
5. The precision bolt hardness tester according to claim 4, wherein: the pretreatment component (10) comprises an air guide cylinder (1001), the air guide cylinder (1001) is fixedly connected to the second connecting frame (9), a filter screen box (1002) is connected to the other end of the air guide cylinder (1001), a magnetic frame (1003) is connected to the bottom of the filter screen box (1002) through magnetic adsorption, a connecting pipe (1004) is connected to the inner rotation of the filter screen box (1002), an exhaust fan (1005) and a circular gear (1007) are fixedly connected to the connecting pipe (1004), the air guide cylinder (1001) is symmetrically distributed on two sides of the second connecting frame (9), the air guide cylinder (1001) corresponds to the filter screen box (1002) one by one, the outer wall of the filter screen box (1002) is attached to the inner wall of the magnetic frame (1003), the exhaust fan (1005) and the circular gear (1007) are symmetrically distributed on two sides of the connecting pipe (1004), and the central axes of the exhaust fans (1005) on two sides are the same in orientation, and the central axes of the connecting pipe (1004) and the central axes of the air guide cylinder (1001) are located on the same horizontal center line.
6. The accurate bolt hardness tester according to claim 5, wherein: connecting plate (1006) is fixedly connected with in connecting pipe (1004), it is connected with third threaded rod (1008) to rotate on connecting plate (1006), threaded connection has threaded loop bar (1009) on third threaded rod (1008), the tip fixedly connected with rubber piston (1010) of threaded loop bar (1009), the spacing sliding connection of rubber piston (1010) is in connecting pipe (1004), the terminal surface of connecting plate (1006) with the terminal surface parallel and level of connecting pipe (1004), third threaded rod (1008) are connected in the central part of connecting plate (1006), the transversal rectangle of personally submitting of connecting pipe (1004) inner space, rubber piston (1010) with the inner wall of connecting pipe (1004) laminating mutually.
7. The accurate bolt hardness tester according to claim 6, wherein: the utility model discloses a rubber air bag, including connecting pipe (1004), rubber air bag (1013), fixed pipe (1011), rubber air bag (1013), fixed frame (1012) are gone up to be connected with fixed pipe (1011), fixed frame (1012) are gone up fixedly connected with rubber air bag (1013), be provided with flexible polishing layer (1014) on rubber air bag (1013), fixed pipe (1011) symmetric distribution is in the left and right sides and the front and back both sides of connecting pipe (1004), the tip of fixed pipe (1011) with rubber air bag (1013) are linked together, rubber air bag (1013) are semicircle tube-shape, rubber air bag (1013) with air duct (1015) all symmetric distribution is in the both sides of fixed frame (1012), rubber air bag (1013) with air duct (1015) alternate distribution, connecting pipe (1004) with the top of conveyer belt (11) is connected.
8. The accurate bolt hardness tester according to claim 7, wherein: the conveying cylinder (14) is connected to the middle part of the storage box (13), the end part of the connecting hose (15) is attached to the foam-rubber cushion (19), the telescopic loop rods (16) are symmetrically distributed on two sides of the first guide plate (18) and two sides of the second guide plate (20) respectively, the first guide plate (18) and the second guide plate (20) are semicircular, the shape and the size of the first guide plate (18) are identical to those of the second guide plate (20), and the ultrasonic probe (21) is installed at the middle part of the end part of the second guide plate (20).
9. A precision bolt hardness tester according to claim 3, characterised in that: the hydraulic rods (25) are equidistantly distributed on the first connecting frame (5), the hydraulic rods (25) are in one-to-one correspondence with the pushing plates (27) through the pressure sensors (26), and the bottom end height of the pushing plates (27) is larger than the top end height of the positioning cylinder (601).
10. A method for measuring the precision bolt hardness using the precision bolt hardness measuring instrument according to claim 1, comprising the steps of:
s1: the positioning assembly (6) is used for clamping and positioning a plurality of bolts, and then the bolts can be subjected to tensile strength detection by driving of each hydraulic rod (25) and combining the pressure sensor (26) and the push plate (27) at the end part;
s2: the first threaded rod (3) is driven by the small motor (2), each bolt can be driven to move towards the Rockwell hardness tester (23) by the first connecting frame (5) on the sliding block (4), in the moving process of the bolts, the paint can be coated on the bolts by the sponge pads (19) on the first guide plate (18) for marking, and the bolts after tensile strength resistance detection can be subjected to flaw detection by the ultrasonic probes (21) on the second guide plate (20);
s3: in the moving process of the bolts, the first connecting frame (5) can drive the pretreatment assembly (10) through the rack (7) at the top, and polishing and cleaning treatment is carried out on the end measuring surface of each bolt;
s4: the hardness of each bolt can be measured one by utilizing the matching of the Rockwell hardness tester (23) and the detection head (24);
s5: after the measuring work is finished, each bolt moves and resets, the preprocessing component (10) can clean the measured bolts again, and then each bolt can be detached.
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| CN202311766829.8A CN117433887B (en) | 2023-12-21 | 2023-12-21 | Accurate bolt hardness measuring instrument and measuring method thereof |
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