CN219455812U

CN219455812U - Micro-hardening meter capable of being clamped rapidly

Info

Publication number: CN219455812U
Application number: CN202320257287.0U
Authority: CN
Inventors: 陈俊新; 胡绪前; 彭秀红; 叶华; 李功辉; 徐宗强
Original assignee: Ganzhou Comprehensive Inspection And Testing Institute
Current assignee: Ganzhou Comprehensive Inspection And Testing Institute
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-01
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a microhardness meter capable of being clamped rapidly, which aims to solve the technical problems that a horizontal opposite clamping structure of the traditional microhardness meter cannot enable a workpiece to be locked vertically, an irregular workpiece is easy to shake and unstably during detection.

Description

Micro-hardening meter capable of being clamped rapidly

Technical Field

The utility model belongs to the field of microhardness gauges, and particularly relates to a microhardness gauge capable of being clamped rapidly.

Background

The hardness tester is a hardness testing instrument, the metal hardness measurement is defined by Lei Aom mol at the earliest, the capability of resisting the hard object to be pressed into the surface of the metal is expressed, the hardness tester is one of important performance indexes of the metal, and generally the higher the hardness is, the better the wear resistance is, and the hardness tester can be divided into: a Rehd, rockwell, brinell, shore, papanicolaou, microhardness, mohs, vickers, etc.

The utility model provides a current chinese patent of utility model of bulletin number CN209327145U, it discloses a little sclerometer convenient to change fixture, including little sclerometer body, detection pressure head, objective, eyepiece and fixture, the front portion of little sclerometer body is equipped with the eyepiece, the inside of little sclerometer body is equipped with the host computer, the bottom of host computer distributes has detection pressure head and objective, the bottom of detection pressure head and objective is equipped with fixture, fixture's top distributes has the grip block, the both ends of connector are equipped with fixed warhead, fixed warhead installs in the draw-in groove, fixture's front portion is equipped with flexible button, the bottom of support column is equipped with supporting platform, supporting platform's bottom welding distributes has damping spring. This little sclerometer of apparent convenient to change fixture, the accurate detection is carried out to the high-efficient fastening's centre gripping article, and the installation of being convenient for is dismantled, and it is convenient to change, and shock attenuation buffering, elasticity are good, the effectual efficiency that detects that has improved, the host computer through setting up is convenient for rotate and is detected. This patent is fixed the work piece that is tested through installing the detachable fixture on test table surface, has improved the stability when the work piece detects, but this kind of level subtend centre gripping's structure can not play the locking effect to the upper portion of work piece, and when work piece surface irregularity and unsmooth, the work piece is placed unstably, detects the pressure head and acts on and can make the work piece rock on the work piece, detects stability inequality.

Therefore, to the situation that the horizontal opposite clamping structure of the microhardness meter can not enable the workpiece to be vertically locked, the irregular workpiece is easy to shake and unstably during detection, the novel microhardness meter is developed, the vertical locking mechanism is matched with the horizontal opposite clamping machine tool to strengthen the locking effect on the workpiece, and the detection stability of the workpiece is further improved.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a microhardness meter capable of being clamped rapidly, which aims to solve the technical problems that a horizontal opposite clamping structure of the traditional microhardness meter cannot lock a workpiece vertically, and an irregular workpiece is easy to shake and unstably during detection.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a microhardness meter capable of being clamped rapidly, which comprises a machine base and a longitudinal compression ring horizontally arranged above the machine base, wherein a back frame is arranged at the rear side of the upper end of the machine base, a top table is arranged at the upper end of the back frame, the top table is horizontally arranged above the longitudinal compression ring, guide rails are arranged at the left end and the right end of the back frame, a linear motor is arranged at the outer side of the guide rails, a linkage frame is arranged between the front ends of the linear motor, a hanging bracket is fixedly arranged at the upper end of the rear side of the longitudinal compression ring, and the linkage frame is fixedly connected with the left end and the right end of the hanging bracket.

The microhardness time meter capable of rapidly clamping is characterized in that a user places a workpiece on a machine base, then starts a first horizontal oil cylinder and a second horizontal oil cylinder, drives a first lateral clamping plate and a second lateral clamping plate to move oppositely to move the workpiece to be tested to the lower part of a detection pressure head and an objective lens and lock the side face of the workpiece to be tested, then rotates an adjusting knob by hand, controls the detection pressure head and the objective lens to move downwards to be close to the workpiece to be tested, simultaneously starts the adjusting knob to rotate, controls a longitudinal press ring to move downwards, cooperates with a rubber head to squeeze the upper surface of the workpiece to be tested, a plurality of contact points exist between the longitudinal press ring and the surface of the workpiece to be tested, locks the upper part of the workpiece to be tested, then enables the detection pressure head to abut against the workpiece, adopts microcomputer control, can select measurement of Vicker hardness and Knoop hardness by software, can adjust the strength of a measurement light source, can preset test force retention time, can be adjusted in a stepless manner by operating a control key, a hardness scale or HK, test force and light source brightness can be measured by using a micro eyepiece, a diagonal length D1 and a diagonal length D2 can be measured, and a diagonal hardness value can be directly input to a diagonal screen display screen after the length is read by the LCD screen.

Further, a plurality of cylindrical rubber heads are annularly arranged at the lower end of the longitudinal compression ring, the longitudinal compression ring is arranged at the upper side of the workpiece to be detected, the rubber heads are tightly attached to the upper surface of the workpiece to be detected, and the rubber heads have certain longitudinal deformability and are abutted against the surface of the workpiece to lock the upper part of the workpiece.

Further, a detection pressure head and an objective lens are arranged at the lower end of the top platform, a micrometer eyepiece communicated with the objective lens is arranged at the front end of the top platform, the bottom end of the detection pressure head is tightly attached to the upper surface of a workpiece to be detected, the micrometer eyepiece is used for measuring the diagonal length D1 and the diagonal length D2 of the workpiece through the objective lens, and the hardness of the workpiece is tested by matching with the ray detection effect of the detection pressure head on the workpiece.

Further, the top bench right side is provided with adjust knob, adjust knob with connect detect the pressure head with mesh between the screw rod step-by-step mechanism of objective, LCD display screen is installed to the frame front end, detects pressure head and objective and uses common carrying mechanism, should carry on mechanism and screw rod step-by-step mechanism and link to each other and screw rod step-by-step mechanism penetrates adjust knob in the middle of, and when adjust knob rotated, screw rod step-by-step mechanism synchronous motion makes detection pressure head and objective longitudinal movement height-adjusting.

Further, a guide column with a rectangular bottom end and a cylindrical upper end is arranged between the machine base and the top platform, a guide hole is formed in the inner side of the hanging frame, the guide column is arranged in the inner side of the guide hole, and the longitudinal pressing ring moves to keep the horizontal state of the machine base through the directional movement of the hanging frame along the guide column.

Further, a horizontal oil cylinder is arranged at the rear end of the back frame, a lateral clamping plate is arranged on the upper side of the front end of the machine base, the lateral clamping plate is arranged at the top end of a hydraulic actuating element of the horizontal oil cylinder, and the horizontal oil cylinder drives the lateral clamping plate to move towards one side of a workpiece and cling to the surface of the front side of the workpiece.

Further, the second horizontal oil cylinder is arranged at the rear end of the guide column, the second lateral clamping plate is arranged on the front side of the guide column, the second lateral clamping plate is arranged at the top end of the hydraulic actuating element of the second horizontal oil cylinder, and the second horizontal oil cylinder drives the second lateral clamping plate to move towards one side of the workpiece and cling to the rear side surface of the workpiece.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the microhardness meter capable of being clamped rapidly, the longitudinal compression ring driven by the linear motor is vertically extruded on the upper surface of the workpiece, the workpiece is prevented from shaking through the action of multipoint contact extrusion between the lower surface of the longitudinal compression ring and the upper surface of the workpiece with the uneven surface, the detection stability of the workpiece is improved, the locking effect of the workpiece is further enhanced by matching with the horizontal clamping mechanism, meanwhile, extrusion damage to the surface of the workpiece is reduced, the starting and stopping of the longitudinal movement of the longitudinal compression ring are linked with the action of manually adjusting the vertical height of the detection pressure head, and the purpose of automatically and rapidly locking the workpiece when the detection is achieved.

Drawings

FIG. 1 is a schematic diagram of an assembled structure of a rapidly clampable microhardness tester in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of a structure of a vertical compression ring of an embodiment of a rapidly clampable microhardness meter according to the present utility model;

FIG. 3 is a schematic diagram of a schematic front view of a rapidly grippable microhardness tester according to an embodiment of the present utility model;

FIG. 4 is a schematic side view of a rapidly grippable microhardness tester according to an embodiment of the present utility model.

The marks in the drawings are: 1. a base; 2. a back frame; 3. a top platform; 4. a guide rail; 5. a linear motor; 6. a linkage frame; 7. a hanging bracket; 8. a longitudinal compression ring; 9. a rubber head; 10. detecting a pressure head; 11. an objective lens; 12. a micrometer eyepiece; 13. an adjustment knob; 14. an LCD display screen; 15. a guide column; 16. a guide hole; 17. a first horizontal oil cylinder; 18. a first lateral clamping plate; 19. a second horizontal oil cylinder; 20. and a second lateral clamping plate.

Detailed Description

The embodiment is a microhardness meter capable of being clamped rapidly, the assembly structure of the microhardness meter is shown in fig. 1, the structure of a longitudinal compression ring 8 is shown in fig. 2, the front structure is shown in fig. 3, the side structure is shown in fig. 4, the microhardness meter comprises a machine base 1 and a longitudinal compression ring 8 horizontally arranged above the machine base 1, a back frame 2 is arranged at the rear side of the upper end of the machine base 1, a top table 3 is arranged at the upper end of the back frame 2, a top table 3 is horizontally arranged above the longitudinal compression ring 8, guide rails 4 are arranged at the left end and the right end of the back frame 2, a linear motor 5 is arranged outside the guide rails 4, a linkage frame 6 is arranged between the front ends of the linear motor 5, a hanging bracket 7 is fixedly arranged at the upper end of the rear side of the longitudinal compression ring 8, and the linkage frame 6 is fixedly connected to the left end and the right end of the hanging bracket 7.

For this specific embodiment, the linear motor 5 directly converts electric energy into linear motion mechanical energy, the guide rail 4 is a magnetic track fixed with a magnet, the mover of the linear motor 5 comprises a coil winding, a hall element circuit board, a thermistor and an electronic interface, the position of the mover in a magnetic field generated by the magnetic track is kept by the guide rail 4, the position of the linear motor 5 is fed back by the linear encoder, and the linear motor 5 is pushed by magnetic force to axially move along the guide rail 4, so that the longitudinal compression ring 8 is extruded on the upper surface of a workpiece, and the workpiece is limited to shake.

The lower end of the longitudinal pressing ring 8 is annularly provided with a plurality of cylindrical rubber heads 9, the longitudinal pressing ring 8 is arranged on the upper side of a workpiece to be detected, the rubber heads 9 are tightly attached to the upper surface of the workpiece to be detected, a guide column 15 with a rectangular bottom end and a cylindrical upper end is arranged between the machine base 1 and the top table 3, a guide hole 16 is formed in the inner side of the hanging frame 7, the guide column 15 is arranged in the inner side of the guide hole 16, the rubber heads 9 have certain longitudinal deformability and are abutted against the surface of the workpiece to lock the upper part of the workpiece, and the longitudinal pressing ring 8 keeps the horizontal state of the machine base through the directional movement of the hanging frame 7 along the guide column 15 when moving.

Simultaneously, the lower extreme of top platform 3 is provided with detection pressure head 10 and objective 11, top platform 3 front end installs the micrometer eyepiece 12 that is linked together with objective 11, detection pressure head 10 bottom is hugged closely in the work piece upper surface that awaits measuring, top platform 3 right side is provided with adjust knob 13, mesh between adjust knob 13 and the screw rod step mechanism who connects detection pressure head 10 and objective 11, LCD display 14 is installed to frame 1 front end, it surveys work piece diagonal length D1 and D2 value through objective 11 with micrometer eyepiece 12, cooperate the detection pressure head 10 to the ray detection effect of work piece to test the hardness of work piece, detection pressure head 10 and objective 11 use common loading mechanism, this loading mechanism links to each other with screw rod step mechanism and screw rod step mechanism penetrates in the middle of adjust knob 13, when adjust knob 13 rotates, screw rod step mechanism synchronous motion makes detection pressure head 10 and objective 11 longitudinal movement height-adjusting.

In addition, a first horizontal cylinder 17 is installed at the rear end of the back frame 2, a first lateral clamping plate 18 is arranged on the upper side of the front end of the machine base 1, the first lateral clamping plate 18 is installed at the top end of a hydraulic actuating element of the first horizontal cylinder 17, a second horizontal cylinder 19 is installed at the rear end of the guide post 15, a second lateral clamping plate 20 is arranged on the front side of the guide post 15, the second lateral clamping plate 20 is installed at the top end of a hydraulic actuating element of the second horizontal cylinder 19, the first horizontal cylinder 17 drives the first lateral clamping plate 18 to move towards one side of a workpiece and cling to the front side surface of the workpiece, and the second horizontal cylinder 19 drives the second lateral clamping plate 20 to move towards one side of the workpiece and cling to the rear side surface of the workpiece.

According to the microhardness time meter capable of being clamped rapidly, a user puts a workpiece on a machine base 1, then a first horizontal oil cylinder 17 and a second horizontal oil cylinder 19 are started, a first lateral clamping plate 18 and a second lateral clamping plate 20 are driven to move oppositely to move the workpiece to be tested to the lower part of a detection press head 10 and an objective 11 and lock the side face of the workpiece to be tested, then an adjusting knob 13 is rotated by hand, the detection press head 10 and the objective 11 are controlled to move downwards to be close to the workpiece to be tested, the adjusting knob 13 rotates, a linear motor 5 is synchronously started to control a longitudinal press ring 8 to move downwards, a rubber head 9 is matched to press the upper surface of the workpiece to be tested, a plurality of contact points exist between the longitudinal press ring 8 and the surface of the uneven workpiece, the upper part of the workpiece to be tested is locked, then the detection press head 10 is abutted against the workpiece, the microhardness meter is controlled by a microcomputer, vicker hardness and hardness measurement can be selected through software, the strength of a measurement light source can be adjusted, the retention time of the workpiece can be preset, an LCD display screen 14 can be adopted, a hardness scale or HK, the retention time can be selected through operating a control key, the light source can be adjusted, a length D can be adjusted, a hardness value can be directly displayed on a diagonal screen, and a hardness value can be directly displayed by a length D (D) can be displayed by a length D) and a length D can be directly displayed by a length D, and a length of a test value can be directly displayed by a test screen.

Claims

1. A microhardness meter capable of being clamped rapidly comprises a machine base and a longitudinal compression ring horizontally arranged above the machine base; the device is characterized in that a back frame is arranged at the rear side of the upper end of the machine base, a top platform is arranged at the upper end of the back frame, the top platform is horizontally arranged above the longitudinal pressing ring, guide rails are arranged at the left end and the right end of the back frame, a linear motor is arranged at the outer side of the guide rails, a linkage frame is arranged between the front ends of the linear motor, a hanging bracket is fixedly arranged at the upper end of the rear side of the longitudinal pressing ring, and the linkage frame is fixedly connected with the left end and the right end of the hanging bracket.

2. The rapid clamping microhardness meter according to claim 1, wherein a plurality of cylindrical rubber heads are annularly arranged at the lower end of the longitudinal compression ring, the longitudinal compression ring is arranged at the upper side of the workpiece to be tested, and the rubber heads are tightly attached to the upper surface of the workpiece to be tested.

3. The rapid clamping microhardness meter according to claim 1, wherein a detection pressure head and an objective lens are arranged at the lower end of the top table, a microeyepiece communicated with the objective lens is arranged at the front end of the top table, and the bottom end of the detection pressure head is tightly attached to the upper surface of a workpiece to be detected.

4. A rapid clamping microhardness tester according to claim 3, wherein an adjusting knob is arranged on the right side of the top table, the adjusting knob is meshed with a screw stepping mechanism connecting the detection pressure head and the objective lens, and an LCD display screen is mounted at the front end of the machine base.

5. The rapid clamping microhardness tester according to claim 1, wherein a guide column with a rectangular bottom end and a cylindrical upper end is arranged between the machine base and the top platform, a guide hole is formed in the inner side of the hanging frame, and the guide column is arranged in the inner side of the guide hole.

6. The rapid clamping microhardness meter according to claim 1, wherein a first horizontal oil cylinder is installed at the rear end of the back frame, a first lateral clamping plate is arranged on the upper side of the front end of the machine base, and the first lateral clamping plate is installed at the top end of a hydraulic actuating element of the first horizontal oil cylinder.

7. The rapid clamping microhardness tester according to claim 5, wherein a second horizontal cylinder is mounted at the rear end of the guide column, a second lateral clamping plate is arranged on the front side of the guide column, and the second lateral clamping plate is mounted at the top end of a hydraulic actuating element of the second horizontal cylinder.