Laser shock peening equipment assisted by multiple physical fields

Abstract

The utility model discloses multi-physics-field-assisted laser shock strengthening equipment, which belongs to the field of laser strengthening and comprises a base, a laser transmitter is mounted at the top end of the base, an inner cylinder is fixedly connected to the top end of the base, and a plurality of laser strengthening components are fixedly connected to the inside of the inner cylinder. The laser enhancement assembly comprises a first reflector, a second reflector is installed above the first reflector, and the key points of the technical scheme are that laser is emitted through a laser emitter, the laser emitter penetrates through an inner cylinder to form a laser light path, in the laser passing process, the laser is sequentially reflected by the first reflector, the second reflector and a third reflector, and the second reflector is installed above the first reflector. A laser beam can be reflected for multiple times, so that laser energy is accumulated and enhanced on a specific area or a target, and meanwhile, the heat-conducting fin dissipates heat of the reflecting cylinder to prevent the reflecting cylinder from being heated and damaged when receiving the laser to influence the enhancement of the laser.

Description

Technical Field

[0001] The utility model relates to the field of laser strengthening, and more specifically, to a multi-physical field-assisted laser shock strengthening device. Background Art

[0002] Laser shock peening technology is a high-tech technology that uses plasma shock waves generated by strong laser beams to improve the fatigue resistance, wear resistance and corrosion resistance of metal materials. At present, laser shock peening equipment generally uses a robotic arm or a coordinate robot as a workpiece clamping motion system, which can be used for laser shock peening processing of simple surface parts. However, the laser cannot move during the processing, which makes it difficult to process parts with complex surfaces. When processing parts with complex surfaces, there is a lack of equipment that can move quickly and has high repeated positioning accuracy, which makes it inconvenient to perform laser shock peening.

[0003] Chinese patent application number: CN202122407808.X, provides a five-axis machine tool type laser shock peening equipment. This solution combines the laser shock peening equipment with a five-axis CNC machine tool through a laser light guide device, so that the laser shock peening equipment can perform small spot impact and achieve high positioning accuracy during high-speed movement, and can process complex surface parts.

[0004] However, when performing laser strengthening, it is not convenient to adjust according to changes in the current physical field in order to strengthen the laser, which is not conducive to improving the processing efficiency of the workpiece. Therefore, a multi-physical field assisted laser shock strengthening device is proposed to address the above problem. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a multi-physical field assisted laser shock peening equipment, in which the laser is emitted by a laser emitter, and the laser emitter passes through an inner cylinder to form a laser light path. In the process of the laser passing through, the first reflector, the second reflector, and the third reflector reflect the laser in sequence, and the laser beam can be reflected multiple times, so that the laser energy is accumulated and enhanced in a specific area or target. At the same time, the heat conductive sheet dissipates the heat of the reflective cylinder to prevent the reflective cylinder from being damaged by heat when receiving the laser and affecting the enhancement of the laser.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A multi-physical field-assisted laser shock peening device comprises a base, a laser emitter is installed on the top of the base, an inner cylinder is fixedly connected to the top of the base, and a plurality of laser enhancement components are fixedly connected inside the inner cylinder; the laser enhancement component comprises a first reflector, a second reflector is installed above the first reflector, a third reflector is installed above the second reflector, the second reflector and the third reflector have the same structure as the first reflector, the diameters of the first reflector, the second reflector and the third reflector are successively smaller, and the first reflector, the second reflector and the third reflector are all adapted to the inner cylinder; the first reflector comprises a reflective cylinder, the reflective cylinder is installed on the inner wall of the inner cylinder, a plurality of heat conducting sheets arranged equidistantly are fixedly connected to the outer end of the reflective cylinder, and the heat conducting sheets pass through the inner cylinder;

[0008] The laser is emitted by a laser emitter, which passes through the inner tube to form a laser light path. During the laser passing through, the first reflector, the second reflector, and the third reflector reflect the laser in sequence. The laser beam can be reflected multiple times, so that the laser energy is accumulated and enhanced in a specific area or target. By adjusting the paths and numbers of the first reflector, the second reflector, and the third reflector, the degree of energy enhancement can be flexibly controlled. The laser is mainly reflected by the reflective tube. When the laser light passes through the reflective tube, the reflective tube reflects the laser. At the same time, the heat conductive sheet dissipates the heat of the reflective tube to prevent the reflective tube from being damaged by heat when receiving the laser and affecting the enhancement of the laser.

[0009] Reference Figure 2-Figure 4 As shown, the shape of the reflective cylinder is a cone-shaped cylinder, and the shape of the inner cylinder is a cone-shaped cylinder.

[0010] An outer sleeve is fixedly connected to the top of the base and located outside the heat conducting sheet, and the outer sleeve is adapted to the heat conducting sheet. A plurality of heat dissipation openings arranged at equal distances are opened on the outer wall of the outer sleeve, and the heat dissipation openings are adapted to the heat conducting sheet;

[0011] The outer sleeve protects the heat conducting sheet to prevent it from being damaged by external influences. Meanwhile, the heat dissipation port facilitates the heat dissipation of the heat conducting sheet.

[0012] The bottom end of the base is fixedly connected with a positioning seat, and the top end of the base and the outer side of the laser emitter are equipped with a plurality of symmetrically distributed heat dissipation fans, and the heat dissipation fans are adapted to the outer sleeve and the heat conducting sheet;

[0013] The heat on the heat conducting sheet is cooled by blowing air to the inside of the outer sleeve through the heat dissipation fan, and the top cover is fixedly connected to the top of the reflective tube by the heat conducting sheet.

[0014] The top cover comprises a connecting cover, which is mounted on the top end of the outer sleeve, the connecting cover is matched with the inner sleeve, and the top end of the connecting cover is fixedly connected with a cone sleeve;

[0015] The inner cylinder and the outer cylinder are connected by a connecting cover, so that the inner cylinder and the outer cylinder form a sealed environment to prevent the air volume of the cooling fan from being discharged and affecting the emission of the laser. The conical cylinder facilitates the emission of the laser, which is beneficial for subsequent users to accurately align the laser with the workpiece through the conical cylinder when performing laser processing on the workpiece, so as to facilitate laser processing on the workpiece.

[0016] In summary, the utility model has the following beneficial effects:

[0017] (1) This solution reflects the laser in sequence through the first reflector, the second reflector, and the third reflector, and can reflect the laser beam multiple times, so that the laser energy is accumulated and enhanced in a specific area or target, and the degree of energy enhancement can be flexibly controlled by adjusting the paths and numbers of the first reflector, the second reflector, and the third reflector.

[0018] (2) The heat dissipation fan of this solution blows air to the inside of the outer sleeve, which is convenient for blowing and dissipating the heat on the heat conductive plate. The heat dissipation port is convenient for exhausting air volume, preventing the heat conductive plate from being damaged and affecting the heat conductive plate's enhancement of the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;

[0020] Figure 2 It is a schematic diagram of the overall split structure in this embodiment;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the laser enhancement component in this embodiment;

[0022] Figure 4 It is a schematic diagram of the structure of the split first reflector in this embodiment.

[0023] In the figure, 1, positioning seat; 2, base; 3, outer sleeve; 4, top cover; 5, laser emitter; 6, inner cylinder; 7, laser enhancement component; 8, cooling fan; 401, connecting cover; 402, cone cylinder; 701, first reflector; 702, second reflector; 703, third reflector; 70101, reflective cylinder; 70202, heat conductive sheet. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] Reference Figure 1-Figure 4 As shown, a multi-physical field assisted laser shock peening device in a preferred embodiment of the utility model comprises a base 2, a laser emitter 5 is installed on the top of the base 2, an inner tube 6 is fixedly connected to the top of the base 2, and a plurality of laser enhancement components 7 are fixedly connected inside the inner tube 6; the laser enhancement component 7 comprises a first reflector 701, a second reflector 702 is installed above the first reflector 701, a third reflector 703 is installed above the second reflector 702, and the second reflector 702 and the third reflector 703 are installed on the second reflector 702. 03 has the same structure as the first reflector 701. The diameters of the first reflector 701, the second reflector 702 and the third reflector 703 are successively smaller. The first reflector 701, the second reflector 702 and the third reflector 703 are all adapted to the inner cylinder 6. The first reflector 701 includes a reflective cylinder 70101, which is mounted on the inner wall of the inner cylinder 6. The outer end of the reflective cylinder 70101 is fixedly connected with a plurality of heat conducting sheets 70202 arranged at equal distances. The heat conducting sheets 70202 penetrate the inner cylinder 6.

[0027] The laser is emitted by the laser emitter 5, and the laser emitter 5 passes through the inner tube 6 to form a laser light path. During the laser passing through, the first reflector 701, the second reflector 702, and the third reflector 703 reflect the laser in sequence. The laser beam can be reflected multiple times, so that the laser energy is accumulated and enhanced in a specific area or target. By adjusting the paths and numbers of the first reflector 701, the second reflector 702, and the third reflector 703, the degree of energy enhancement can be flexibly controlled. The laser is mainly reflected by the reflective tube 70101. When the laser light passes through the reflective tube 70101, the reflective tube 70101 reflects the laser. At the same time, the heat conductive sheet 70202 dissipates heat for the reflective tube 70101 to prevent the reflective tube 70101 from being damaged by heat when receiving the laser.

[0028] Reference Figure 2-Figure 4 As shown, the shape of the reflective tube 70101 is conical, and the shape of the inner tube 6 is conical.

[0029] The top of the base 2 is fixedly connected to the outer sleeve 3 located outside the heat conducting sheet 70202. The outer sleeve 3 is adapted to the heat conducting sheet 70202. The outer wall of the outer sleeve 3 is provided with a plurality of heat dissipation openings arranged at equal distances. The heat dissipation openings are adapted to the heat conducting sheet 70202.

[0030] The outer sleeve 3 protects the heat conducting sheet 70202 to prevent the heat conducting sheet 70202 from being damaged by external influences. Meanwhile, the heat dissipation port facilitates the heat dissipation of the heat conducting sheet 70202 .

[0031] The bottom end of the base 2 is fixedly connected with the positioning base 1, and the top end of the base 2 and the outer side of the laser emitter 5 are equipped with a plurality of symmetrically distributed heat dissipation fans 8, and the heat dissipation fans 8 are adapted to the outer sleeve 3 and the heat conducting sheet 70202;

[0032] The heat dissipation fan 8 is used to blow air into the outer sleeve 3, so as to dissipate the heat on the heat conducting plate 70202 and improve the heat dissipation performance of the heat conducting plate 70202 on the reflective tube 70101.

[0033] Reference Figure 2 As shown, a top cover 4 is fixedly connected to the top end of the outer sleeve 3 .

[0034] The top cover 4 includes a connecting cover 401, which is installed on the top of the outer sleeve 3, and the connecting cover 401 is adapted to the inner sleeve 6, and the top of the connecting cover 401 is fixedly connected with a cone 402;

[0035] The inner cylinder 6 and the outer cylinder 3 are connected by connecting cover 401, so that the inner cylinder 6 and the outer cylinder 3 form a sealed environment to prevent the air volume discharged by the cooling fan 8 from affecting the emission of the laser. The conical cylinder 402 facilitates the emission of the laser, which is beneficial for subsequent users to accurately align the laser with the workpiece through the conical cylinder 402 when performing laser processing on the workpiece, so as to facilitate laser processing on the workpiece.

[0036] Specific implementation process: First, align the cone 402 with the workpiece, turn on the laser emitter 5, and the laser emitter 5 emits a laser. The laser passes through the inner cylinder 6. At this time, the first reflector 701, the second reflector 702, and the third reflector 703 reflect the laser in turn. The laser beam can be reflected multiple times, so that the laser energy is accumulated and enhanced on a specific area or target. Among them, the reflective cylinder 70101 reflects the laser, and finally it is emitted from the cone cylinder 402 to perform laser processing on the workpiece. At the same time, the heat conducting plate 70202 dissipates the heat of the reflective cylinder 70101, and the heat dissipation fan 8 blows air to the inside of the outer sleeve 3 to dissipate the heat on the heat conducting plate 70202, and the heat dissipation port facilitates the discharge of air.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-physics field-assisted laser shock peening device, comprising a base (2), Features: A laser emitter (5) is installed at the top of the base (2), an inner tube (6) is fixedly connected to the top of the base (2), and a plurality of laser enhancement components (7) are fixedly connected inside the inner tube (6); The laser enhancement assembly (7) comprises a first reflector (701), a second reflector (702) is installed above the first reflector (701), a third reflector (703) is installed above the second reflector (702), the second reflector (702) and the third reflector (703) have the same structure as the first reflector (701), the diameters of the first reflector (701), the second reflector (702) and the third reflector (703) are successively smaller, and the first reflector (701), the second reflector (702) and the third reflector (703) are all adapted to the inner cylinder (6); The first reflector (701) comprises a reflective tube (70101), wherein the reflective tube (70101) is mounted on the inner wall of the inner tube (6), and the outer end of the reflective tube (70101) is fixedly connected to a plurality of heat-conducting plates (70202) arranged at equal distances, wherein the heat-conducting plates (70202) penetrate the inner tube (6).

2. A multi-physics field assisted laser shock peening device according to claim 1, Features: The shape of the reflecting cylinder (70101) is a cone, and the shape of the inner cylinder (6) is a cone.

3. The multi-physics field assisted laser shock peening device according to claim 1, Features: An outer sleeve (3) is fixedly connected to the top of the base (2) and located outside the heat conducting plate (70202), and the outer sleeve (3) is compatible with the heat conducting plate (70202). The outer wall of the outer sleeve (3) is provided with a plurality of heat dissipation openings arranged at equal distances, and the heat dissipation openings are compatible with the heat conducting plate (70202).

4. The multi-physics field assisted laser shock peening device according to claim 1, Features: The bottom end of the base (2) is fixedly connected to a positioning seat (1), and a plurality of symmetrically distributed heat dissipation fans (8) are installed at the top end of the base (2) and located outside the laser emitter (5), and the heat dissipation fans (8) are compatible with the outer sleeve (3) and the heat conducting sheet (70202).

5. The multi-physics field assisted laser shock peening device according to claim 4, Features: The top end of the outer sleeve (3) is fixedly connected with a top cover (4).

6. The multi-physics field assisted laser shock peening device according to claim 5, Features: The top cover (4) comprises a connecting cover (401), the connecting cover (401) is mounted on the top end of the outer sleeve (3), the connecting cover (401) is adapted to the inner sleeve (6), and the top end of the connecting cover (401) is fixedly connected to a conical sleeve (402).

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