A laser shock peening experimental device for a rod-shaped sample

Abstract

The utility model discloses a kind of rod-shaped sample laser shock peening experimental device, it is related to laser processing technical field, including limit cabinet, laser is fixed between the two inner walls of the limit cabinet, the two inner walls of the limit cabinet are slidably connected with positioning plate, the two inner walls of the limit cabinet are slidably connected with limit frame, the inside of the limit frame is slidably connected with two clamping plates;In the utility model, start motor one drives two clamping plates to be close to each other, so that cleaning brush and sample body outer wall are closely attached, then start motor two drives reciprocating screw rod to rotate, to drive two clamping plates reciprocating transverse, using cleaning brush to melt deformation's absorption layer outside sample body is automatically scraped, can be scraped to absorption layer when sample body outside is still in high temperature, facilitate subsequent process, shorten experimental procedure, overall efficiency is higher, different models of positioning plate can be replaced, to adapt to different models of sample body, facilitate use.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically to an experimental device for laser shock strengthening of rod-shaped samples. Background Technology

[0002] Laser shock peening can alter the chemical composition and microstructure of rod-shaped specimens, making the surface denser and reducing the probability of material contact with corrosive media, thereby improving the material's corrosion resistance. By conducting laser shock peening experiments on rod-shaped specimens, we can conduct in-depth research on the physical and chemical changes of materials under laser shock, including the absorption and conversion of laser energy, the propagation and attenuation of shock waves, and the deformation and microstructure transformation of materials.

[0003] Before laser shock peening experiments, rod-shaped samples need to be covered with an absorption layer, such as aluminum foil, black tape, or high-temperature black paint. The constraint layer and absorption layer on the surface of the rod-shaped sample are then removed, and the sample is cleaned with alcohol and dried before subsequent testing and observation. However, the absorption layer adheres due to high temperature and other factors, and the rod-shaped sample takes time to cool down, making it impossible to clean immediately. This results in a long experimental process and hinders the improvement of experimental efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a laser shock peening experimental device for rod-shaped specimens to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a laser shock peening experimental device for rod-shaped specimens, comprising:

[0006] A limiting cabinet, wherein a laser is slidably connected between the two inner walls of the limiting cabinet, a positioning plate is slidably connected to each of the two inner walls of the limiting cabinet, a limiting frame is slidably connected between the two inner walls of the limiting cabinet, and two clamping plates are slidably connected inside the limiting frame, and a cleaning brush is fixedly connected to the opposite side of the two clamping plates.

[0007] Furthermore, one side of the limiting cabinet is rotatably connected to two trapdoors via hinges, and a central frame and a grid plate are fixedly connected between the two inner walls of the limiting cabinet.

[0008] Furthermore, two mounting shells and two positioning shells are fixedly connected to the four outer side walls of the limiting cabinet, respectively. The mounting shells and positioning shells are staggered. A sealing shell is rotatably connected to the top of the mounting shell via a hinge. A hydraulic rod is rotatably connected to both sides of the mounting shell. The output end of the hydraulic rod is rotatably connected to the adjacent sealing shell. An air supply module is fixedly connected to the front side of the limiting cabinet.

[0009] Furthermore, support plates are fixedly connected to both inner walls of the limiting cabinet, guide plates are slidably connected to both inner walls of the limiting cabinet, a fixing plate is fixedly sleeved inside the guide plate, an insert plate is fixedly connected to the bottom of the positioning plate, the insert plate is movably engaged with the adjacent fixing plate, fixing screws are screwed to both sides of the positioning plate, the fixing screws can be screwed to the adjacent fixing plate, and hydraulic rods are fixedly connected to the inner walls of both positioning shells, the output end of the hydraulic rods is fixedly connected to the adjacent guide plate.

[0010] Furthermore, the cleaning brush is made of PTFE bristles.

[0011] Furthermore, a motor is fixedly connected to the top of the limiting frame, and a bidirectional lead screw is rotatably connected inside the limiting frame. The bidirectional lead screw passes through two clamping plates, and the clamping plates are screwed into adjacent sections of the bidirectional lead screw. The output end of the motor is fixedly connected to the top of the bidirectional lead screw.

[0012] Furthermore, two crossbars are fixedly connected between the two inner walls of the limiting cabinet. The crossbars pass through the limiting frame and are slidably connected to it. A docking plate is fixedly connected to the bottom of the limiting frame. A reciprocating screw is rotatably connected between the two positioning shells. The reciprocating screw passes through the limiting cabinet but does not contact it. The reciprocating screw passes through the docking plate and is screwed to it. Protective shells are fixedly connected to both sides of the docking plate. The protective shells pass through the limiting cabinet and extend into the interior of the positioning shells. A second motor is fixedly connected to the inner wall of one of the positioning shells. The output end of the second motor is fixedly connected to the adjacent end of the reciprocating screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The first motor drives the two clamping plates to move closer together, making the cleaning brush fit tightly against the outer wall of the sample body. Then, the second motor drives the reciprocating screw to rotate, thereby driving the two clamping plates to move back and forth laterally. The cleaning brush automatically scrapes off the melted and deformed absorption layer on the outside of the sample body. The absorption layer can be scraped off while the outside of the sample body is still at a high temperature, which facilitates subsequent processes, shortens the experimental process, and improves overall efficiency. Different models of positioning plates can be replaced to adapt to different models of sample bodies, making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side sectional view of the limiting cabinet in this utility model;

[0017] Figure 3 This is a side sectional view of the guide plate structure in this utility model;

[0018] Figure 4 This is a side sectional view of the positioning shell structure in this utility model;

[0019] Figure 5 This is a side sectional view of the limiting frame structure in this utility model.

[0020] In the diagram: 10. Limiting cabinet; 101. Trap door; 102. Central rack; 103. Grid plate; 11. Laser; 12. Mounting shell; 121. Sealing shell; 122. Hydraulic rod one; 13. Positioning plate; 131. Support plate; 132. Guide plate; 133. Hydraulic rod two; 134. Fixing plate; 135. Insert plate; 136. Fixing screw; 14. Limiting frame; 141. Clamping plate; 142. Cleaning brush; 143. Bidirectional lead screw; 144. Motor one; 145. Connecting plate; 146. Protective shell; 147. Positioning shell; 1471. Crossbar; 148. Reciprocating lead screw; 149. Motor two; 15. Air supply module; 20. Sample body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a laser shock peening experimental device for rod-shaped samples, including a limiting cabinet 10, a laser 11 slidably connected between the two inner walls of the limiting cabinet 10, a positioning plate 13 slidably connected to both inner walls of the limiting cabinet 10, a limiting frame 14 slidably connected between the two inner walls of the limiting cabinet 10, two clamping plates 141 slidably connected inside the limiting frame 14, and a cleaning brush 142 fixedly connected to the opposite sides of the two clamping plates 141.

[0023] In practice, starting the hydraulic rod 133 can adjust the positioning plate 13 to facilitate clamping the sample body 20. The laser 11 can slide or be fixed to perform laser impact. The hydraulic rod 122 can rotate the sealing shell 121. The two sealing shells 121 can be pressed against each other to form a sealed space at the top of the limit cabinet 10. Starting the gas supply module 15 can introduce inert gas.

[0024] Two crossbars 1471 work together to laterally slide and limit the limiting frame 14 and the clamping plate 141. The motor 144 is started to drive the bidirectional lead screw 143 to rotate, which drives the two clamping plates 141 to move closer to each other, so that the cleaning brush 142 is in close contact with the outer wall of the sample body 20. Then the motor 2149 is started to drive the reciprocating lead screw 148 to rotate, which drives the two clamping plates 141 to move back and forth laterally. The cleaning brush 142 automatically scrapes off the melted and deformed absorption layer on the outside of the sample body 20. The absorption layer can be scraped off while the outside of the sample body 20 is still at a high temperature, which facilitates subsequent processes, shortens the experimental process, and improves overall efficiency.

[0025] See Figure 1-2 The limit cabinet 10 has two hinged doors 101 connected to one side, and a central frame 102 and a grid plate 103 are fixed between the two inner walls of the limit cabinet 10.

[0026] In practice, the grid plate 103 can be used to place and block larger objects, such as the sample body 20 if it falls accidentally, to protect it. It can also filter out various wastes and the scraped-off absorbent layer wastes. The wastes are guided to the bottom of the limit cabinet 10 by the central rack 102, and all the wastes can be taken out by opening the trapdoor 101.

[0027] See Figure 5 The cleaning brush 142 is made of PTFE bristles.

[0028] In practical applications, PTFE, or polytetrafluoroethylene, has a long-term temperature resistance of 260℃ and an instantaneous temperature resistance of 280℃. It has outstanding chemical stability and is resistant to almost all chemical solvents. It also has advantages such as low coefficient of friction, non-stickiness, and good electrical insulation. It is often used to manufacture brushes for use in high-temperature and highly corrosive environments. It can adapt well to the high temperature outside the sample body 20 and thoroughly scrape off various molten absorption layers.

[0029] See Figure 2-3 Two mounting shells 12 and two positioning shells 147 are fixedly connected to the four outer side walls of the limit cabinet 10, respectively. The mounting shells 12 and positioning shells 147 are staggered. The top of the mounting shell 12 is rotatably connected to a sealing shell 121 via a hinge. Hydraulic rods 122 are rotatably connected to both sides of the mounting shell 12. The output end of the hydraulic rods 122 is rotatably connected to the adjacent sealing shell 121. An air supply module 15 is fixedly connected to the front side of the limit cabinet 10.

[0030] Support plates 131 are fixedly connected to both inner walls of the limit cabinet 10. Guide plates 132 are slidably connected to both inner walls of the limit cabinet 10. A fixing plate 134 is fixedly sleeved inside the guide plate 132. An insert plate 135 is fixedly connected to the bottom of the positioning plate 13. The insert plate 135 is movably engaged with the adjacent fixing plate 134. Fixing screws 136 are screwed to both sides of the positioning plate 13. The fixing screws 136 can be screwed to the adjacent fixing plate 134. Hydraulic rods 133 are fixedly connected to the inner walls of the two positioning shells 147. The output end of the hydraulic rods 133 is fixedly connected to the adjacent guide plate 132.

[0031] In specific implementation, the sealing shell 121 is rotated and limited by the mounting shell 12. The rotation of the sealing shell 121 can be adjusted by activating the hydraulic rod 122. The two sealing shells 121 are pressed together to form a sealed space at the top of the limiting cabinet 10. The gas supply module 15 can introduce inert gas, such as argon. The positioning plate 13 is slidably limited by the guide plate 132. The two positioning plates 13 are used to clamp the two ends of the sample body 20 to hold and fix the sample body 20. The positioning plate 13 can be adjusted by activating the hydraulic rod 133 to facilitate the loading and unloading of the sample body 20. The laser 11 can slide or be fixed to perform laser impact. The support plate 131 provides auxiliary support for the guide plate 132 and the hydraulic rod 133. The positioning plate 13 and the fixing plate 134 are initially clamped by the insert plate 135 and quickly fixed by the fixing screw 136. Different models of positioning plates 13 can be replaced to adapt to different models of sample bodies 20.

[0032] See Figure 2-4 The top of the limiting frame 14 is fixedly connected to a motor 144, and the inside of the limiting frame 14 is rotatably connected to a bidirectional lead screw 143. The bidirectional lead screw 143 passes through two clamping plates 141, and the clamping plates 141 are screwed into adjacent sections of the bidirectional lead screw 143. The output end of the motor 144 is fixedly connected to the top of the bidirectional lead screw 143.

[0033] Two crossbars 1471 are fixed between the two inner walls of the limiting cabinet 10. The crossbars 1471 pass through the limiting frame 14 and are slidably connected to it. A docking plate 145 is fixed to the bottom of the limiting frame 14. A reciprocating screw 148 is rotatably connected between the two positioning shells 147. The reciprocating screw 148 passes through the limiting cabinet 10 and does not contact it. The reciprocating screw 148 passes through the docking plate 145 and is screwed to it. Protective shells 146 are fixed to both sides of the docking plate 145. The protective shells 146 pass through the limiting cabinet 10 and extend into the interior of the positioning shells 147. A second motor 149 is fixed to the inner wall of one of the positioning shells 147. The output end of the second motor 149 is fixed to the adjacent end of the reciprocating screw 148.

[0034] In practice, two crossbars 1471 work together to laterally slide and limit the limiting frame 14 and the clamping plate 141. The motor 144 is started to drive the bidirectional lead screw 143 to rotate, which drives the two clamping plates 141 to move closer to each other, so that the cleaning brush 142 is in close contact with the outer wall of the sample body 20. Then, the motor 2149 is started to drive the reciprocating lead screw 148 to rotate, which drives the two clamping plates 141 to move back and forth laterally. The cleaning brush 142 automatically scrapes off the melted and deformed absorption layer on the outside of the sample body 20. The absorption layer can be scraped off while the outside of the sample body 20 is still at a high temperature, which facilitates subsequent processes, shortens the experimental process, and improves overall efficiency.

[0035] Working principle: Activating hydraulic rod 133 can adjust the positioning plate 13 to facilitate clamping the sample body 20. The laser 11 can slide or be fixed to perform laser impact. Activating hydraulic rod 122 can rotate the sealing shell 121. When the two sealing shells 121 are pressed together, a sealed space can be formed on the top of the limiting cabinet 10. Activating the gas supply module 15 can introduce inert gas.

[0036] Two crossbars 1471 work together to laterally slide and limit the limiting frame 14 and the clamping plate 141. The motor 144 is started to drive the bidirectional lead screw 143 to rotate, which drives the two clamping plates 141 to move closer to each other, so that the cleaning brush 142 is in close contact with the outer wall of the sample body 20. Then the motor 2149 is started to drive the reciprocating lead screw 148 to rotate, which drives the two clamping plates 141 to move back and forth laterally. The cleaning brush 142 automatically scrapes off the melted and deformed absorption layer on the outside of the sample body 20. The absorption layer can be scraped off while the outside of the sample body 20 is still at a high temperature, which facilitates subsequent processes, shortens the experimental process, and improves overall efficiency.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A laser shock peening experimental apparatus for rod-shaped specimens, characterized in that, include, A limiting cabinet (10) is provided, with a laser (11) slidably connected between the two inner walls of the limiting cabinet (10). A positioning plate (13) is slidably connected to both inner walls of the limiting cabinet (10). A limiting frame (14) is slidably connected between the two inner walls of the limiting cabinet (10). Two clamping plates (141) are slidably connected inside the limiting frame (14). A cleaning brush (142) is fixedly connected to the opposite side of the two clamping plates (141).

2. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 1, characterized in that: The limiting cabinet (10) has two hinged doors (101) on one side, and a central frame (102) and a grid plate (103) are fixedly connected between the two inner walls of the limiting cabinet (10).

3. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 1, characterized in that: Two mounting shells (12) and two positioning shells (147) are fixedly connected to the four outer side walls of the limiting cabinet (10). The mounting shells (12) and positioning shells (147) are staggered. A sealing shell (121) is rotatably connected to the top of the mounting shell (12) via a hinge. A hydraulic rod (122) is rotatably connected to both sides of the mounting shell (12). The output end of the hydraulic rod (122) is rotatably connected to the adjacent sealing shell (121). An air supply module (15) is fixedly connected to the front side of the limiting cabinet (10).

4. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 3, characterized in that: Support plates (131) are fixedly connected to both inner walls of the limiting cabinet (10). Guide plates (132) are slidably connected to both inner walls of the limiting cabinet (10). A fixing plate (134) is fixedly sleeved inside the guide plate (132). An insert plate (135) is fixedly connected to the bottom of the positioning plate (13). The insert plate (135) is movably engaged with the adjacent fixing plate (134). Fixing screws (136) are screwed to both sides of the positioning plate (13). The fixing screws (136) can be screwed to the adjacent fixing plate (134). Hydraulic rods (133) are fixedly connected to the inner walls of the two positioning shells (147). The output end of the hydraulic rods (133) is fixedly connected to the adjacent guide plate (132).

5. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 1, characterized in that: The cleaning brush (142) is made of PTFE bristles.

6. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 4, characterized in that: The top of the limiting frame (14) is fixedly connected to a motor (144), and the inside of the limiting frame (14) is rotatably connected to a bidirectional lead screw (143). The bidirectional lead screw (143) passes through two clamping plates (141), and the clamping plates (141) are screwed into adjacent sections of the bidirectional lead screw (143). The output end of the motor (144) is fixedly connected to the top of the bidirectional lead screw (143).

7. The experimental apparatus for laser shock peening of rod-shaped specimens as described in claim 6, characterized in that: Two crossbars (1471) are fixed between the two inner walls of the limiting cabinet (10). The crossbars (1471) pass through the limiting frame (14) and are slidably connected to it. A docking plate (145) is fixed to the bottom of the limiting frame (14). A reciprocating screw (148) is rotatably connected between the two positioning shells (147). The reciprocating screw (148) passes through the limiting cabinet (10) and does not contact it. The reciprocating screw (148) passes through the docking plate (145) and is screwed to it. Protective shells (146) are fixed to both sides of the docking plate (145). The protective shells (146) pass through the limiting cabinet (10) and extend into the interior of the positioning shell (147). A second motor (149) is fixed to the inner wall of one of the positioning shells (147). The output end of the second motor (149) is fixed to the adjacent end of the reciprocating screw (148).

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