CN219026378U

CN219026378U - Bone sample clamping device in laser experiment

Info

Publication number: CN219026378U
Application number: CN202320195277.9U
Authority: CN
Inventors: 闫磊; 贾骥; 陈万强; 张智博; 易伟
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-05-16
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a bone sample clamping device in a laser experiment, and belongs to the technical field of clamping devices. The clamping device for the bone sample in the laser experiment comprises a clamp structure and a dust removing structure, and can provide good processing working conditions for the bone sample in a laser laboratory environment. The clamping structure of the utility model consists of a pressure spring matched with a clamping plate, and the generated pressure can stably clamp a femur sample of a sheep; the slider that designs in the dust removal structure is meshed in cylindrical gear, and the accurate location to the processing region is accomplished to cooperation high accuracy rotating electrical machines, and the air blowing hole on the slider, the external air pump of exhaust hole simultaneously cooperate the inside streamlined curved surface high efficiency of device to get rid of the dust. The device provided by the utility model is simple to install, the stability of the sheep femur sample in the experiment and the safety in the laser experiment are improved, convenience is provided for the laser experiment operation, and the laser cutting efficiency and quality are improved.

Description

Bone sample clamping device in laser experiment

Technical Field

The utility model belongs to the technical field of clamping devices, and particularly relates to a bone sample clamping device in a laser experiment

Background

Making bone samples in laser medical laboratories for laser ablation experiments is a necessary step prior to clinical trials, and since the bone component ratio of mammals is closest to humans, making experimental samples using sheep femur is the most common technique. In the laser cutting test process, plasma, dust and the like can be generated due to the interaction between laser pulses and bones, and if the laser pulses are not removed in time, the subsequent test effect can be affected, and the laser cutting efficiency is reduced.

In the current experiment, a bone sample is polished and then placed in an open environment for the experiment, and the method has the problems that dust cannot be removed, the precision and the efficiency are low, the sample is easy to move, the upper surface is not parallel to a laser focal plane and the like; furthermore, manual adjustment of the sample test area is accompanied by a risk due to the risk present during the laser test.

Disclosure of Invention

In order to solve the problems, the utility model provides a technical scheme that:

the clamping device for the bone sample in the laser experiment is characterized by mainly comprising a clamp structure and a dust removing structure, wherein the clamp structure comprises a shell 1, a cover plate 2, a pressure spring I3, a pressure spring II4, a pressure spring III5, a pressure spring IV6, a clamping plate 7 and a sheep femur sample 8, sliding grooves are formed in two sides of the shell 1 and are in threaded connection with the cover plate 2, four raised cylinders are formed in the cover plate 2, four cylindrical grooves are formed in the clamping plate 7, two ends of the pressure spring I3, the pressure spring II4, the pressure spring III5 and the pressure spring IV6 are respectively nested in the cylinders of the cover plate 2 and the grooves of the clamping plate 7, the clamping plate 7 can slide along the sliding grooves of the main shell 1, and the pressure springs I3, the pressure spring II4, the pressure spring III5 and the pressure spring IV6 push the clamping plate 7 to clamp the sheep femur sample 8 along the sliding grooves in two sides of the main shell 1; the dust removing structure comprises a main shell 1, a sliding block 9, a cylindrical gear 10, a rotating motor support 11 and a rotating motor 12, wherein a sliding groove is formed in the top of the main shell 1, the sliding block 9 is provided with a light passing hole, a gas blowing hole, a gas discharging hole and a rack, the gas blowing hole and the gas discharging hole of the sliding block 9 are arranged on two sides of the light passing hole, plasma and dust generated on the surface of a sheep femur sample 8 in the laser cutting process can be timely taken away through air circulation, the laser cutting efficiency and quality are improved, the rotating motor 12 is fixed on the rotating motor support 11 through threaded connection, the rotating motor support 11 is fixed on the main shell 1 through threaded connection, the cylindrical gear 10 is fixed on a rotating shaft of the rotating motor 12 through key connection, the rack of the sliding block 9 is meshed with the cylindrical gear 10 of the rotating motor 12, when the laser processing position changes, the cylindrical gear 10 drives the sliding block 9 to move along the sliding groove on the top of the main shell 1, and accurate adjustment of the light passing hole and the dust removing structure position can be realized.

The clamp structure is set according to the size of the sheep femur, so that the positions of the sheep femur sample 8 and the clamping device in the laser cutting process can be ensured not to deviate; the dust removing structure of the device can remove plasmas, dust and the like generated in the laser cutting process in real time through the air circulation of the exhaust hole and the air inlet hole.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the fixture structure installation of the present utility model;

FIG. 3 is a schematic diagram of the operation state of the present utility model.

In the figure: 1. a housing; 2. a cover plate; 3. a pressure spring I; 4. a pressure spring II; 5. a pressure spring III; 6. a pressure spring IV; 7. a clamping plate; 8. a sheep femur sample; 9. a slide block; 10. a cylindrical gear; 11. a rotating electric machine bracket; 12. a rotating electric machine.

Detailed Description

Before the device of the utility model works, the cover plate 2 is firstly disassembled, the pressure spring I3, the pressure spring II4, the pressure spring III5, the pressure spring IV6 and the clamping plate 7 are taken out, the sheep femur sample 8 is put into the shell 1, and then the clamping plate 7, the pressure spring I3, the pressure spring II4, the pressure spring III5, the pressure spring IV6 and the cover plate 2 are sequentially installed, as shown in figure 2.

The bone sample clamping device is arranged on an objective table of a laser experiment, and an external blowing pipeline and an external exhaust pipeline are respectively connected to a blowing hole and an exhaust hole of the sliding block 9. After the experiment starts, the laser light path starts to move along the sliding groove direction of the sliding block 9, and the high-precision rotating motor 12 is controlled to drive the cylindrical gear 10 to rotate for a certain angle, so that the relative position of the sliding block 9 is adjusted, the light passing hole of the sliding block 9 is always positioned right above the experimental area of the sheep femur sample, and the laser light path is ensured to reach the experimental area and is not blocked, as shown in fig. 3.

Opening a blowing and exhausting device and starting laser cutting, wherein in the laser cutting process, the pressure of a pressure spring I3, a pressure spring II4, a pressure spring III5 and a pressure spring IV6 pushes a clamping plate 7 to clamp a sheep femur sample 8 along sliding grooves on two sides of a main shell 1, so that the relative position of the sheep femur sample 8 is not deviated in the laser cutting process, and plasma and dust generated in the laser cutting process can be removed in real time after an air inlet and an air outlet on a sliding block 9 are communicated with an air pump, and the laser cutting efficiency and quality are ensured; and meanwhile, the inclination angles of the air inlet and the air outlet are matched with the streamline curved side walls of the shell 1 and the sliding block 9, so that the turbulence of gas is greatly reduced, and the removal rate of plasma and dust is increased.

Claims

1. The device is characterized by mainly comprising a clamp structure and a dust removing structure, wherein the clamp structure comprises a shell (1), a cover plate (2), a pressure spring I (3), a pressure spring II (4), a pressure spring III (5), a pressure spring IV (6), a clamping plate (7) and a sheep femur sample (8), the shell (1) and the cover plate (2) are connected through threads, the cover plate (2) is provided with four raised cylinders, the clamping plate (7) is provided with four cylindrical grooves, and the two ends of the pressure spring I (3), the pressure spring II (4), the pressure spring III (5) and the pressure spring IV (6) are respectively nested in the cylinders of the cover plate (2) and the grooves of the clamping plate (7); the dust removal structure comprises a main shell (1), a sliding block (9), a cylindrical gear (10), a rotating motor support (11) and a rotating motor (12), wherein a sliding groove is formed in the top of the main shell (1), the sliding block (9) is provided with a light passing hole, a gas blowing hole, a gas exhaust hole and a rack, the rotating motor (12) is fixed on the rotating motor support (11) through threaded connection, the rotating motor support (11) is fixed on the main shell (1) through threaded connection, the cylindrical gear (10) is fixed on a rotating shaft of the rotating motor (12) through key connection, and the rack of the sliding block (9) is meshed with the cylindrical gear (10) of the rotating motor (12).

2. A bone sample clamping device in laser experiments as claimed in claim 1, characterized in that the clamping plate (7) can slide along the sliding grooves of the main housing (1), and the pressure generated by the pressure springs I (3), II (4), III (5) and IV (6) pushes the clamping plate (7) to clamp the sheep femur sample (8) along the sliding grooves on both sides of the main housing (1).

3. The bone sample clamping device in the laser experiment according to claim 1, wherein the air blowing hole and the air discharging hole of the sliding block (9) are arranged on two sides of the light passing hole, plasma and dust generated on the surface of the sheep femur sample (8) in the cutting process can be taken away in time through air circulation, and streamline curved surface designs are adopted on the side walls of the sliding block (9) and the shell (1), so that the turbulence of air is reduced, and the cutting quality is improved.

4. The bone sample clamping device in the laser experiment according to claim 1, wherein when the laser processing position changes, the rotary motor (12) drives the cylindrical gear (10), and the cylindrical gear (10) drives the sliding block (9) to move along the sliding groove at the top of the main shell (1), so that the precise adjustment of the positions of the light passing hole and the dust removing structure can be realized.