CN213068537U

CN213068537U - Machine parts hardness detection device

Info

Publication number: CN213068537U
Application number: CN202022309756.8U
Authority: CN
Inventors: 吴燕玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-04-27
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a mechanical parts hardness detection device, which comprises a box body, one side of the box body is connected with a rotating wheel in a penetrating way, one end of the rotating wheel, which is positioned at the inner side of the box body, is fixedly connected with a first gear, one side of the first gear is connected with a rack in a meshing way, parts can be firmly fixed on a test bed by arranging calipers and cursors, the sliding cannot occur, so that the experimental result is influenced, a pressure head on a pressure rod can freely lift by arranging the rotating wheel, the first gear, a second gear, a chain and a protective barrel, the applied force can be converted into a reading to be displayed on a gradiometer, the force application time is controlled by arranging a buzzer, a timing switch and a timer, the experimental data can be measured while the surface of the parts is not excessively damaged, and the position of an experimental plate can be freely adjusted by arranging a sliding block, a rocker, a rocking, any point required by any experiment can be selected, and the trouble of repeatedly disassembling and assembling parts can be avoided.

Description

Machine parts hardness detection device

Technical Field

The utility model relates to a hardness detection area specifically is a machine parts hardness testing device.

Background

The hardness test is a widely used material testing technique that is simple to operate, generally produces minimal or no damage to the material, and provides reliable, intuitive, and easily understood test results requiring that an indenter having a specified geometry and characteristics be pressed into the surface of the material within a specified time using a certain test force, and then the indentation depth or indentation size is measured, the softer the material being tested, the greater the indentation depth or indentation size, and the faster the rockwell hardness test can produce results, so this method is most commonly used for testing metal and alloy materials as well.

However, most hardness testers have a pressure table which is difficult to adjust, so that certain requirements are imposed on the height of a test part, the size of a mechanical part is required to be within a certain range, and if no caliper is used for fixing the mechanical part, the final test result is easily influenced by slipping. And when facing different materials, the hardness that needs the test indenter is different, if want tester to test the hardness difference of difference on same part, then need repeated dismantlement installation, very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machine parts processingquality detection device solves the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical accessory hardness detection device comprises a box body, wherein a rotating wheel is connected to one side of the box body in a penetrating way, one end of the rotating wheel positioned at the inner side of the box body is fixedly connected with a first gear, one side of the first gear is meshed and connected with the rack, one side of the rack is positioned below the first gear and is meshed with the second gear, the bottom of the rack is fixedly connected with a pressure rod, a gradiometer is fixedly connected with one side of the box body below the rotating wheel, the bottom of the box body is in through connection with the pressure rod, the bottom of the pressure rod is connected with the pressure head through screw threads, the bottom of the box body is fixedly connected with one end of the support column, the other end of the support column is fixedly connected with the base, the top of the base is provided with an adjusting wheel, the top of the adjusting wheel is rotatably connected with a support column, the support column top fixedly connected with slides the box, slide box top sliding connection has the experiment board, experiment board top sliding connection has calliper.

As a further aspect of the present invention: the sliding box comprises a sliding block, a rocker, a rocking wheel, a clamping plate, a guide rod and a threaded rod, the bottom of the experiment plate is fixedly connected with the sliding block, the inner side of the sliding block is connected with the threaded rod in a threaded mode, the two ends of the threaded rod are connected with the clamping plate in a rotating mode, the threaded rod is located at one end of the outer side of the clamping plate and is fixedly connected with the rocking wheel, the rocker is fixed on one side of the rocking wheel, the guide rod is connected with the inner side of the sliding block in a sliding mode, the guide rod is fixedly connected with.

As a further aspect of the present invention: and the outer side of the experiment plate is connected with a vernier in a sliding manner.

As a further aspect of the present invention: the bottom of the inner side of the box body is fixedly connected with a buzzer.

As a further aspect of the present invention: the inner side of the box body is fixedly connected with a fixed block.

As a further aspect of the present invention: the box fixedly connected with timer, the box is located graduator below fixedly connected with time switch.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the part can be firmly fixed on a test bed by arranging the calipers and the vernier, so that the slipping is avoided, the experimental result is influenced, the pressure head on the pressure rod can freely lift by arranging the rotating wheel, the first gear, the second gear, the chain and the protection cylinder, the applied force can be converted into a reading to be displayed on a graduator, the force application time is controlled by arranging the buzzer, the timing switch and the timer, the experimental data can be measured while the surface of the part is not excessively damaged, the position of the experimental plate can be freely adjusted by arranging the sliding block, the rocker, the rocking wheel, the clamping plate, the limiting rod and the threaded rod, any point required by any experiment can be freely adjusted, and the complexity of repeatedly disassembling and installing the part can be avoided;

2. through setting up regulating wheel and support column, make the experiment board freely height-adjusting, need not restrict the part height, through the screwed connection who sets up pressure pole and pressure head, let the pressure head can freely be changed, to the part of different materials, use the pressure head of different materials to do the experiment, avoid damaging precision instruments, also can widen the hardness scope of testable part.

Drawings

FIG. 1 is a front view of a hardness testing device for machine parts;

FIG. 2 is a side view of a hardness testing apparatus for machine parts;

FIG. 3 is a sectional view of a case of the hardness testing apparatus for machine parts;

fig. 4 is a front view of a slide cassette in a mechanical accessory hardness testing apparatus.

In the figure: 1. a box body; 2. a rotating wheel; 3. a graduating instrument; 4. a pressure lever; 5. a caliper; 6. an experimental plate; 7. a cursor; 8. a rocker; 9. a support pillar; 10. an adjustment wheel; 11. a pressure head; 12. a base; 13. a first gear; 14. a protective cylinder; 15. a rack; 16. shaking the wheel; 17. a splint; 18. a threaded rod; 19. a guide bar; 20. a slider; 21. a second gear; 22. a buzzer; 23. a timing switch; 24. a pillar; 25. a slide cassette; 26. a timer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a hardness testing device for mechanical parts comprises a box body 1, a rotating wheel 2 is connected to one side of the box body 1 in a penetrating manner, one end of the rotating wheel 2, which is positioned at the inner side of the box body 1, is fixedly connected with a first gear 13, one side of the first gear 13 is connected with a rack 15 in a meshing manner, one side of the rack 15 is positioned below the first gear 13 and is connected with a second gear 21 in a meshing manner, a pressure rod 4 is fixedly connected to the bottom of the rack 15, a graduator 3 is fixedly connected to one side of the box body 1, which is positioned below the rotating wheel 2, so that the experimental force can be read, the bottom of the box body 1 is connected with the pressure rod 4 in a penetrating manner, the bottom of the pressure rod 4 is in threaded connection with a pressure head 11, so that the pressure head can be replaced, the bottom of the box body 1 is fixedly connected with one, 9 top fixedly connected with slip box 25 of support column, slip box 25 top sliding connection has

experiment board

6, and 6 top sliding connection of experiment board has calliper 5, makes the experiment part fixed.

Preferably, the slip box 25 is including sliding 20, the rocker 8, shake wheel 16, splint 17, guide arm 19 and threaded rod 18, experiment board 6 bottom fixedly connected with sliding block 20, the inboard 18 threaded connection with the threaded rod of sliding block 20, threaded rod 18 both ends are all rotated and are connected with splint 17, threaded rod 18 is located the one end in the splint 17 outside and shakes wheel 16 fixed connection, it is fixed with rocker 8 to shake wheel 16 one side, the inboard sliding connection of sliding block 20 has guide arm 19, guide arm 19 and the inboard fixed connection of splint 17, slip box 25 bottom and support column 9 fixed connection, but make the experiment board free position regulation, convenient experiment operation.

Preferably, the outer side of the test plate 6 is slidably connected with a cursor 7 for adjusting the opening of the caliper.

Preferably, the bottom of the inner side of the box body 1 is fixedly connected with a buzzer 22 for alarming and reminding.

Preferably, a fixing block 14 is fixedly connected to the inner side of the box body 1 to straighten the chain.

Preferably, the box 1 is fixedly connected with a timer 26, and the box 1 is fixedly connected with a timing switch 23 below the graduator 3 for timing and reminding.

The utility model discloses a theory of operation is:

when the tester is used, an instrument is placed on a flat desktop, the vernier 7 is slid, the opening size of the caliper 5 is adjusted, a part to be tested is placed in the opening of the caliper 5, the vernier 7 is slid again, the fact that the caliper 5 clamps the part and cannot move is confirmed, the handle 8 is held, the rocking wheel 16 is rotated, the rocking wheel 16 drives the threaded rod 18 to rotate, the sliding block 20 moves on the threaded rod 18 under the limitation of the limiting rod 19, the test board 6 is moved, the test position on the part is debugged to be right below the pressure head 11, the pressure heads 11 made of different materials are selected according to the materials of the part to prevent the pressure heads 11 from being damaged, the adjusting wheel 10 is rotated, the height of the supporting column 9 is adjusted until the pressure head 11 is attached to the test point on the surface of the part, the rotating wheel 2 on the box body 1 is rotated, the first gear 13 is rotated along with the rotation of the rotating wheel 2 to drive the chain 15 to rotate together, the, and the second gear is connected with the pointer on the graduator 3, so that an inspector can record the reading of the graduator 3 on the box body 1, press the timing switch 23 after applying enough experimental force, rotate the rotating wheel 2 to lift the pressure head 11 after the buzzer 22 gives an alarm, and calculate the surface hardness of the part according to a formula.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a machine parts hardness detection device, includes box (1), its characterized in that: one side of the box body (1) is connected with a rotating wheel (2) in a penetrating manner, one end, located on the inner side of the box body (1), of the rotating wheel (2) is fixedly connected with a first gear (13), one side of the first gear (13) is connected with a rack (15) in a meshing manner, one side of the rack (15) is located below the first gear (13) and is connected with a second gear (21) in a meshing manner, the bottom of the rack (15) is fixedly connected with a pressure rod (4), one side of the box body (1) is located below the rotating wheel (2) and is fixedly connected with a graduator (3), the bottom of the box body (1) is connected with the pressure rod (4) in a penetrating manner, the bottom of the pressure rod (4) is connected with a pressure head (11) in a threaded manner, the bottom of the box body (1) is fixedly connected with one end of a supporting column (24), the other end of the supporting column (24) is, the adjustable test bed is characterized in that the top of the adjusting wheel (10) is rotatably connected with a supporting column (9), the top of the supporting column (9) is fixedly connected with a sliding box (25), the top of the sliding box (25) is slidably connected with an experimental plate (6), and the top of the experimental plate (6) is slidably connected with calipers (5).

2. The device for detecting hardness of a mechanical part according to claim 1, wherein: slide box (25) include sliding block (20), rocker (8), shake wheel (16), splint (17), guide arm (19) and threaded rod (18), experiment board (6) bottom fixedly connected with sliding block (20), sliding block (20) inboard and threaded rod (18) threaded connection, threaded rod (18) both ends are all rotated and are connected with splint (17), one end that threaded rod (18) are located splint (17) outside with shake wheel (16) fixed connection, it is fixed with rocker (8) to shake wheel (16) one side, sliding block (20) inboard sliding connection has guide arm (19), guide arm (19) and splint (17) inboard fixed connection, slide box (25) bottom and support column (9) fixed connection.

3. The device for detecting hardness of a mechanical part according to claim 1, wherein: and the outer side of the experimental plate (6) is connected with a vernier (7) in a sliding way.

4. The device for detecting hardness of a mechanical part according to claim 1, wherein: the bottom of the inner side of the box body (1) is fixedly connected with a buzzer (22).

5. The device for detecting hardness of a mechanical part according to claim 1, wherein: the inner side of the box body (1) is fixedly connected with a fixing block (14).

6. The device for detecting hardness of a mechanical part according to claim 1, wherein: the box body (1) is fixedly connected with a timer (26), and the box body (1) is located below the graduator (3) and is fixedly connected with a timing switch (23).