CN219161897U

CN219161897U - Hardness meter

Info

Publication number: CN219161897U
Application number: CN202320047999.XU
Authority: CN
Inventors: 钱保根; 卫志清
Original assignee: Shanghai Shangcai Tester Machine Co ltd
Current assignee: Shanghai Shangcai Tester Machine Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-06-09
Anticipated expiration: 2033-01-07

Abstract

The application discloses sclerometer relates to the test instrument field, and it includes the organism, be provided with the objective table on the organism, the organism is located the top of objective table and is provided with the pressure head, the symmetry is provided with the clamp block on the objective table, two be formed with the clamp clearance that is used for pressing from both sides tight metal block that awaits measuring between the clamp block, be provided with the drive assembly who is used for driving two clamp blocks along being close to each other or keeping away from each other direction synchronous motion on the organism, be provided with the lifting unit who is used for driving the objective table to go up and down on the organism. The stability of the metal block to be detected on the objective table is improved, and further accuracy of detection results is improved.

Description

Hardness meter

Technical Field

The present application relates to the field of test instruments, and in particular to a durometer.

Background

The durometer is a hardness testing instrument. Metal hardness measurement was defined as the earliest proposed hardness of Lei Aom mol, which indicates the ability of a material to resist pressing of hard objects into its surface. It is one of the important performance indexes of metal materials.

In the use process of the conventional sclerometer, a metal block to be measured needs to be placed on an objective table, and then a driving mechanism drives the objective table to ascend, so that the metal block is contacted with a pressing head, and the hardness of the metal block is detected.

In practice, the metal block is directly placed on the objective table, and in the actual detection process, the metal block is at risk of moving, so that deviation of the detection result is caused, and improvement exists.

Disclosure of Invention

In order to improve stability of a metal block to be detected on an objective table and improve accuracy of a detection result, the application provides a hardness tester.

The application provides a sclerometer adopts following technical scheme:

the utility model provides a sclerometer, includes the organism, be provided with the objective table on the organism, the organism is located the top of objective table and is provided with the pressure head, the symmetry is provided with the clamp block on the objective table, two be formed with the clamp clearance that is used for pressing from both sides tight metal piece that awaits measuring between the clamp block, be provided with the drive assembly who is used for driving two clamp blocks along being close to each other or keep away from each other direction synchronous motion on the organism, be provided with the lifting unit who is used for driving the objective table to go up and down on the organism.

Through adopting above-mentioned technical scheme, place the metal piece that awaits measuring earlier in the clamp clearance, then two clamp blocks of drive assembly drive synchronous opposite movement, clamp the metal piece, lift assembly drive objective table rises afterwards for pressure head and metal piece contact that awaits measuring realize the detection to the metal piece hardness that awaits measuring, this in-process utilizes two clamp blocks to carry out the centre gripping fixedly to the metal piece that awaits measuring, helps improving the stability of metal piece that awaits measuring, helps avoiding the metal piece that awaits measuring to take place to remove in the testing process promptly, and then helps improving the degree of accuracy of testing result.

Preferably, the driving assembly comprises a bidirectional screw rod and a driving piece for driving the bidirectional screw rod to rotate, the bidirectional screw rod is rotationally connected below the objective table, two sides of the bidirectional screw rod are connected with sliding seats in a threaded mode, two clamping blocks are in one-to-one correspondence with the two sliding seats, the clamping blocks are fixedly arranged on the corresponding sliding seats, the upper surface of the objective table is provided with a guide groove, and the two clamping blocks protrude out of the guide groove and are in sliding fit with the guide groove.

Through adopting above-mentioned technical scheme, the drive piece drive two-way lead screw rotates, because the screw thread direction of two sides of two-way lead screw is opposite, consequently when two-way lead screw rotates, realizes that two clamp blocks are along being close to each other or keep away from the synchronous motion of direction, utilizes clamp block and guide way's cooperation, carries out spacingly to clamp block and slide, prevents that both from rotating along with two-way lead screw.

Preferably, friction lines are arranged on two sides of the object stage in the length direction of the guide groove.

Through adopting above-mentioned technical scheme, be provided with friction line on the objective table, improved the frictional force between objective table and the metal piece that awaits measuring, help further improving the stability of metal piece that awaits measuring on the objective table promptly.

Preferably, the machine body is provided with a base, the object stage is lifted and arranged on the base, the lifting assembly comprises two screw rods which are rotationally connected to the base along the vertical direction and a power assembly which drives the two screw rods to synchronously rotate, and the two screw rods are in threaded connection with the object stage.

Through adopting above-mentioned technical scheme, two lead screws of power component drive synchronous rotation, and then realize the elevating movement of objective table.

Preferably, the power assembly comprises two chain wheels, two chains and a power piece, wherein the two chain wheels are in one-to-one correspondence with the two screw rods and are coaxially fixed on the corresponding screw rods, the chain is wound on the two chain wheels, and the power piece drives one screw rod to rotate.

Through adopting above-mentioned technical scheme, power piece drive one of them lead screw rotates, and the sprocket on this lead screw rotates thereupon this moment, and under the effect of chain, another sprocket rotates along with the rotation, realizes the synchronous rotation of two lead screws promptly.

Preferably, the driving piece is arranged as a driving motor, and an output shaft of the driving motor is coaxially fixed with the bidirectional screw rod.

By adopting the technical scheme, the driving motor is operated to realize the rotation of the bidirectional screw rod.

Preferably, the power piece is a hand wheel, the hand wheel is coaxially fixed with one of the screw rods, and the rim of the hand wheel is arranged to protrude out of the base.

Through adopting above-mentioned technical scheme, rotate the hand wheel, drive the lead screw and rotate, then under the effect of sprocket and chain, realize the rotation of two lead screws, and then realize the lift of objective table.

Preferably, the machine body is provided with a guide rod on the base along the vertical direction, and the objective table is in inserted sliding fit with the guide rod.

Through adopting above-mentioned technical scheme, objective table and guide bar grafting slip cooperation play the guide effect to the lift of objective table, help improving the stability of objective table lift.

Preferably, rubber pads are arranged on one sides, close to each other, of the two clamping blocks.

Through adopting above-mentioned technical scheme, utilize the rubber pad, can enough increase the frictional force between clamp block and the metal piece that awaits measuring, also can avoid clamp block and the metal piece direct contact that awaits measuring to avoid causing wearing and tearing to the metal piece that awaits measuring.

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

1. the driving component is used for driving the two clamping blocks to move along the directions of approaching or separating from each other, so that the clamping action of the metal block to be detected is realized, the metal block to be detected is prevented from moving in the detection process, and the accuracy of the detection result is improved;

2. the friction lines are used for improving the friction force between the metal block to be tested and the surface of the objective table, and further improving the stability of the metal block to be tested on the objective table;

3. utilize the rubber pad, can enough increase the frictional force between clamp block and the metal piece that awaits measuring, also can avoid clamp block and the metal piece direct contact that awaits measuring to avoid causing wearing and tearing to the metal piece that awaits measuring.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

fig. 2 is a cross-sectional view of a portion of the structure of an embodiment of the present application, mainly embodying the structure of the lifting assembly and the driving assembly.

Reference numerals: 1. a body; 11. a pressure head; 2. a base; 21. a guide rod; 3. an objective table; 31. a guide groove; 32. rubbing lines; 4. a clamping block; 41. a clamping gap; 42. a rubber pad; 5. a drive assembly; 51. a two-way screw rod; 52. a driving member; 6. a lifting assembly; 61. a screw rod; 62. a power assembly; 621. a sprocket; 622. a chain; 623. a power member; 7. a slide seat.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a hardness meter.

Referring to fig. 1 and 2, the hardness tester comprises a machine body 1, a base 2 is formed on the machine body 1, an object stage 3 is arranged above the base 2 in a lifting manner, the object stage 3 is cuboid, a pressing head 11 is arranged above the object stage 3 on the machine body 1, clamping blocks 4 are symmetrically arranged on the object stage 3 on the machine body 1, a clamping gap 41 is formed between the two clamping blocks 4, a driving component 5 for driving the two clamping blocks 4 to synchronously move along mutually approaching or separating directions is arranged on the machine body 1, and a lifting component 6 for driving the object stage 3 to lift is arranged on the machine body 1.

One side that two clamp blocks 4 are close to each other all fixedly connected with rubber pad 42 increases the frictional force between clamp block 4 and the metal piece that awaits measuring, and avoids clamp block 4 and the metal piece direct contact that awaits measuring to avoid causing wearing and tearing to the metal piece that awaits measuring.

Placing a metal block to be tested in the clamping gap 41, then operating the driving assembly 5 to enable the two clamping blocks 4 to clamp the metal block to be tested, and then driving the objective table 3 to ascend by the lifting assembly 6 to enable the pressure head 11 to be in contact with the metal block to be tested, so as to realize hardness detection of the metal block to be tested; in the process, the two clamping blocks 4 are used for clamping the metal block to be detected, so that the metal block to be detected is prevented from moving in the detection process, and the accuracy of the detection result is improved.

The driving assembly 5 comprises a bidirectional screw rod 51 and a driving piece 52 for driving the bidirectional screw rod 51 to rotate, the bidirectional screw rod 51 is rotationally connected in the objective table 3 along the horizontal direction, threads on two sides of the bidirectional screw rod 51 are opposite, two sides of the bidirectional screw rod 51 are respectively connected with a sliding seat 7 in a threaded manner, two clamping blocks 4 are in one-to-one correspondence with the two sliding seats 7, the clamping blocks 4 are fixedly arranged on the corresponding sliding seats 7, the upper surface of the objective table 3 is provided with a guide groove 31, the two clamping blocks 4 are respectively arranged in a protruding guide groove 31, and the two clamping blocks 4 are respectively slipped in the guide groove 31; the driving member 52 is provided as a driving motor which is fixedly installed in the stage 3, and an output shaft of the driving motor is coaxially fixed with one end of the bidirectional screw rod 51.

The driving motor is operated to drive the bidirectional screw rod 51 to rotate, and the two clamping blocks 4 move along the direction approaching or separating from each other due to the opposite screw directions of the two sides of the bidirectional screw rod 51, so that the clamping action of the metal block to be tested can be realized when the two clamping blocks 4 move in opposite directions. The sliding fit of the guide groove 31 and the clamping block 4 is utilized to guide the sliding of the clamping block 4, and limit the clamping block 4 to prevent the clamping block 4 from rotating along with the bidirectional screw rod 51.

The objective table 3 is located the equal integrated into one piece in both sides of guide slot 31 length direction and has friction line 32, has improved the frictional force between metal block to be measured and the objective table 3, helps improving the stability of metal block to be measured on objective table 3 promptly.

The lifting assembly 6 comprises two screw rods 61 and a power assembly 62 for driving the two screw rods 61 to synchronously rotate, the two screw rods 61 are rotationally connected to the base 2 along the vertical direction, and the objective table 3 is in threaded connection with the two screw rods 61; the power component 62 includes sprocket 621, chain 622 and power piece 623, and sprocket 621 is provided with two, with two lead screw 61 one-to-one, and sprocket 621 coaxial fixation is on corresponding lead screw 61, and chain 622 winds and establishes on two sprockets 621, and power piece 623 sets up to the hand wheel, and the hand wheel is coaxial to be fixed on one of them lead screw 61, and the rim of hand wheel is outstanding base 2 setting, the staff of being convenient for rotates the hand wheel. The hand wheel rotates to drive one screw rod 61 to rotate, and the other screw rod 61 synchronously rotates under the action of the chain wheel 621 and the chain 622, so that the lifting movement of the objective table 3 is realized.

The guide rod 21 is fixedly arranged on the base 2 along the vertical direction, and the objective table 3 is in plug-in sliding fit with the guide rod 21, so that stability of the objective table 3 in the lifting process is improved.

The implementation principle of the sclerometer in the embodiment of the application is as follows: the metal block to be detected is placed in the clamping gap 41, and then the driving motor drives the bidirectional screw rod 51 to rotate, so that the two clamping blocks 4 move in opposite directions, further the metal block to be detected is clamped, the metal block to be detected is prevented from moving in the detection process, and further the accuracy of the detection result is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a sclerometer, includes organism (1), be provided with objective table (3) on organism (1), organism (1) are located the top of objective table (3) and are provided with pressure head (11), its characterized in that: clamping blocks (4) are symmetrically arranged on the objective table (3), a clamping gap (41) for clamping a metal block to be tested is formed between the two clamping blocks (4), a driving assembly (5) for driving the two clamping blocks (4) to synchronously move along mutually approaching or mutually separating directions is arranged on the machine body (1), and a lifting assembly (6) for driving the objective table (3) to lift is arranged on the machine body (1).

2. A durometer according to claim 1, wherein: the driving assembly (5) comprises a bidirectional screw rod (51) and a driving piece (52) for driving the bidirectional screw rod (51) to rotate, the bidirectional screw rod (51) is rotationally connected to the lower portion of the objective table (3), two sides of the bidirectional screw rod (51) are in threaded connection with sliding seats (7), two clamping blocks (4) are in one-to-one correspondence with the two sliding seats (7), the clamping blocks (4) are fixedly arranged on the corresponding sliding seats (7), the upper surface of the objective table (3) is provided with a guide groove (31), and the two clamping blocks (4) protrude out of the guide groove (31) and form sliding fit with the guide groove (31).

3. A durometer according to claim 2, wherein: friction lines (32) are arranged on two sides of the object stage (3) in the length direction of the guide groove (31).

4. A durometer according to claim 1, wherein: the lifting device is characterized in that a base (2) is arranged on the machine body (1), the object stage (3) is arranged on the base (2) in a lifting mode, the lifting assembly (6) comprises two screw rods (61) which are connected to the base (2) in a rotating mode along the vertical direction and a power assembly (62) which drives the two screw rods (61) to rotate synchronously, and the two screw rods (61) are in threaded connection with the object stage (3).

5. A durometer according to claim 4, wherein: the power assembly (62) comprises two chain wheels (621), two chains (622) and power pieces (623), wherein the chain wheels (621) are respectively arranged, the two chain wheels (621) are in one-to-one correspondence with the two screw rods (61), the chain wheels (621) are coaxially fixed on the corresponding screw rods (61), the chains (622) are wound on the two chain wheels (621), and the power pieces (623) drive one screw rod (61) to rotate.

6. A durometer according to claim 2, wherein: the driving piece (52) is arranged as a driving motor, and an output shaft of the driving motor is coaxially fixed with the bidirectional screw rod (51).

7. A durometer according to claim 5, wherein: the power piece (623) is arranged as a hand wheel, the hand wheel is coaxially fixed with one of the screw rods (61), and the rim of the hand wheel is arranged to protrude out of the base (2).

8. A durometer according to claim 4, wherein: the machine body (1) is provided with a guide rod (21) on the base (2) along the vertical direction, and the objective table (3) is in plug-in sliding fit with the guide rod (21).

9. A durometer according to claim 1, wherein: rubber pads (42) are arranged on one sides, close to each other, of the two clamping blocks (4).