Equipment for laser material reduction

Abstract

The utility model discloses equipment for laser material reduction, and belongs to the technical field of laser material reduction. The equipment comprises a connecting plate, a cylinder body and a plurality of exhaust pipes, the connecting plate is used for being connected with a fixing support, and a light through hole is formed in the connecting plate; one end of the cylinder body is vertically fixed on the connecting plate, and the cylinder body and the light through hole are coaxially arranged; the plurality of exhaust pipes are uniformly inserted into the cylinder body and are communicated with an inner hole of the cylinder body, and each exhaust pipe is used for being communicated with exhaust equipment. According to the equipment for laser material reduction, gasified and stripped materials can be timely and uniformly pumped away when laser acts on a product, the gasified and stripped materials are prevented from influencing the next layer of laser material reduction, and the material reduction efficiency and effect are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser material reduction, and in particular relates to a device used for laser material reduction. Background Art

[0002] In the welding process of new energy battery modules, for abnormal welding products (defects such as burst holes, depressions, gaps leading to partial connections, etc.), it is necessary to remove the welded materials before re-welding. Traditional subtractive manufacturing methods have gradually been unable to meet the increasingly urgent needs of precision machining of high-end parts in the industrial field in recent years. The current traditional mechanical removal equipment is complex, difficult, extremely inefficient, and has a high scrap rate. The use of laser subtractive methods can achieve non-contact, high-precision directional and quantitative subtractive removal, improve the yield rate, and can be automated, which is of great significance to the reform of existing processes.

[0003] Laser subtraction is a processing method that uses the high energy of a laser beam to remove materials. Under the action of a high-energy laser beam, some materials can be directly transformed from a solid state to a gaseous state. The gasification process will produce gas and steam to remove the material. The laser subtraction process requires the workpiece to be removed layer by layer. If the gasified and peeled materials cannot be removed in time, it will affect the laser beam from acting on the next layer of material, resulting in some materials not being acted on by the laser beam, resulting in inconsistent subtraction depth. Utility Model Content

[0004] In response to the above defects or improvement needs of the prior art, the utility model provides a device for laser material reduction, the purpose of which is to timely and evenly remove the vaporized and peeled materials when the laser acts on the product, prevent the vaporized and peeled materials from affecting the next layer of laser material reduction, and improve the efficiency and effect of material reduction.

[0005] To achieve the above-mentioned purpose, the utility model provides a device for laser material reduction, the device comprising a connecting plate, a cylinder and a plurality of exhaust pipes;

[0006] The connecting plate is used to connect the fixing bracket, and the connecting plate has a light-through hole;

[0007] One end of the cylinder is vertically fixed on the connecting plate, and the cylinder is coaxially arranged with the light-through hole;

[0008] A plurality of the exhaust pipes are evenly inserted on the cylinder and are connected to the inner hole of the cylinder. Each of the exhaust pipes is used to connect to the exhaust equipment.

[0009] Optionally, the other end of the cylinder has an air blowing port, which is communicated with the inner hole of the cylinder, and is used to blow inert gas into the cylinder.

[0010] Optionally, the inert gas is nitrogen, helium or argon.

[0011] Optionally, the cylinder body includes an outer cylinder and an inner cylinder arranged coaxially, one end of the inner cylinder is fixed to the connecting plate, one end of the outer cylinder is sleeved on the inner cylinder, a cavity is formed between the inner circumferential wall of the other end of the outer cylinder and the outer circumferential wall of the other end of the inner cylinder, the other end of the outer cylinder protrudes out of the inner cylinder, and the other end of the outer cylinder has an inner flange, the inner flange is spaced from the inner cylinder to form an annular space, the annular space is connected with the cavity, an air inlet pipe is inserted on the outer cylinder, the air inlet pipe is connected with the cavity, and the annular space, the cavity and the air inlet pipe form the blowing port.

[0012] Optionally, the other end of the inner tube has a notch on its outer side, and one end of the outer tube has a boss, the boss is inserted into the notch, and the boss is threadedly matched with the notch of the inner tube.

[0013] Optionally, in the axial direction of the cylinder, the size of the annular space is 0.5-3 mm.

[0014] Optionally, in a direction away from the connecting plate, the outer diameter of the other end of the cylinder and the inner diameter of the cylinder both gradually decrease.

[0015] Optionally, the connecting plate has strip holes arranged at intervals, and a connecting bolt is movably inserted into at least one of the strip holes.

[0016] Optionally, an axis of the exhaust pipe and an axis of the cylinder form an angle, and the angle ranges from 30° to 90°.

[0017] Optionally, the number of the exhaust pipes is 2 to 6.

[0018] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0019] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0020] For a device for laser material reduction provided by an embodiment of the utility model, when performing material reduction processing on a product, first, fix the connecting plate on a fixed bracket (a welding head is provided on the top of the fixed bracket), and make the bottom end of the cylinder vertically contact with the processing surface of the workpiece. At this time, the material reduction area is respectively opposite to the inner hole and the light-through hole of the cylinder, and the connecting plate plays a role in installing and fixing the entire device. Then, start the welding head and the exhaust device corresponding to the exhaust pipe, and the laser emitted by the welding head passes through the light-through hole and the inner hole of the cylinder in turn to perform laser material reduction processing on the workpiece. During the processing, after the exhaust pipe is evacuated, a negative pressure will be formed in the inner hole of the cylinder, and the vaporized and peeled materials when the laser acts on the product will be promptly and evenly extracted to prevent the vaporized and peeled materials from affecting the next layer of laser material reduction, avoid the phenomenon of inconsistent material reduction depth, and improve the efficiency and effect of material reduction.

[0021] That is to say, the device for laser material reduction provided by the embodiment of the utility model can timely and evenly extract the vaporized and peeled materials when the laser acts on the product, prevent the vaporized and peeled materials from affecting the next layer of laser material reduction, and improve the efficiency and effect of material reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a first view of a device for laser material reduction provided by an embodiment of the utility model;

[0023] Figure 2 is a second view of a device for laser material reduction provided by an embodiment of the utility model;

[0024] Figure 3 It is a cross-sectional view of a device for laser material reduction provided by an embodiment of the utility model;

[0025] Figure 4 yes Figure 3 A partial enlarged view of area A.

[0026] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0027] 1. Connecting plate; 11. Light-through hole; 12. Strip hole; 2. Cylinder body; 21. Outer cylinder; 211. Inner flange; 212. Boss; 22. Inner cylinder; 23. Air inlet pipe; 24. Cavity; 25. Annular spacer; 3. Air extraction pipe. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Example:

[0034] Figure 1 This is a first view of a device for laser material reduction provided by an embodiment of the utility model. Figure 2 This is a second view of a device for laser material reduction provided by an embodiment of the utility model, combined with Figure 1 and Figure 2 As shown, the device includes a connecting plate 1, a cylinder 2 and a plurality of exhaust pipes 3.

[0035] The connecting plate 1 is used to connect the fixing bracket, and a light-through hole 11 is formed on the connecting plate 1.

[0036] One end of the cylinder 2 is vertically fixed on the connecting plate 1 , and the cylinder 2 is coaxially arranged with the light-through hole 11 (ie, the light-through hole 11 is connected with the inner hole of the cylinder 2 ).

[0037] A plurality of air extraction pipes 3 are evenly inserted on the cylinder 2 and communicated with the inner hole of the cylinder 2 . Each air extraction pipe 3 is used to connect to an air extraction device.

[0038] For a device for laser material reduction provided by an embodiment of the utility model, when performing material reduction processing on a product, first, fix the connecting plate 1 on a fixed bracket (a welding head is provided on the top of the fixed bracket), and make the bottom end of the cylinder 2 vertically contact the processing surface of the workpiece. At this time, the material reduction area is respectively opposite to the inner hole of the cylinder 2 and the light-through hole 11, and the connecting plate 1 plays a role in installing and fixing the entire device. Then, start the welding head and the exhaust device corresponding to the exhaust pipe 3, and the laser emitted by the welding head passes through the light-through hole 11 and the inner hole of the cylinder 2 in turn to perform laser material reduction processing on the workpiece. During the processing, after the exhaust pipe 3 is evacuated, a negative pressure will be formed in the inner hole of the cylinder 2, and the vaporized and peeled materials when the laser acts on the product will be promptly and evenly extracted to prevent the vaporized and peeled materials from affecting the next layer of laser material reduction, avoid the phenomenon of inconsistent material reduction depth, and improve the efficiency and effect of material reduction.

[0039] That is to say, the device for laser material reduction provided by the embodiment of the utility model can timely and evenly extract the vaporized and peeled materials when the laser acts on the product, prevent the vaporized and peeled materials from affecting the next layer of laser material reduction, and improve the efficiency and effect of material reduction.

[0040] In this embodiment, the axis of the exhaust pipe 3 and the axis of the cylinder 2 form an angle α, and the range of the angle α is 30-90°. Preferably, the angle α is 60°.

[0041] It is easy to understand that by setting the angle, the exhaust pipe 3 can be arranged obliquely downward, thereby improving the exhaust efficiency of the gasified and peeled materials below.

[0042] Exemplarily, the number of the exhaust pipes 3 is 2 to 6. Preferably, the number of the exhaust pipes 3 is 3, and the angle between two adjacent exhaust pipes 3 in the horizontal direction is 120°.

[0043] Continue to see Figure 1 and Figure 2 The other end of the cylinder 2 has an air blowing port, which is connected to the inner hole of the cylinder 2 and is used to blow inert gas into the cylinder 2.

[0044] In the above-mentioned embodiment, the inert gas blown out from the blowing port can fully cover the laser material reduction area, thereby protecting the laser material reduction area from contact with air, thereby preventing it from being oxidized and nitrided.

[0045] In this embodiment, the inert gas may be nitrogen, helium or argon.

[0046] For example, argon is usually used when the subtractive product is aluminum alloy to prevent the aluminum alloy from being oxidized by air or nitrided by nitrogen to produce Al2O3 and AlN, which affects its strength. Nitrogen or argon can be used for stainless steel and carbon steel. Argon or helium inert gas is used when the subtractive product is titanium alloy to prevent oxidation of the titanium alloy and cracks.

[0047] In this embodiment, in the direction away from the connecting plate 1, the outer diameter of the other end of the cylinder 2 and the inner diameter of the cylinder 2 are gradually reduced, that is, both are tapered structures, so as to avoid the bottom cross-sectional size of the cylinder 2 being too large and not conducive to its stable contact with the product. The inner hole of the cylinder 2 is tapered to accelerate the flow of gas.

[0048] In one implementation of the present utility model, Figure 3 is a cross-sectional view of a device for laser material reduction provided by an embodiment of the utility model, Figure 4 yes Figure 3 A partial enlarged view of the A area, combined with Figure 3 and Figure 4As shown, the cylinder 2 includes an outer cylinder 21 and an inner cylinder 22 which are coaxially arranged, one end of the inner cylinder 22 is fixed on the connecting plate 1, one end of the outer cylinder 21 is sleeved on the inner cylinder 22, a cavity 24 is formed between the inner circumferential wall of the other end of the outer cylinder 21 and the outer circumferential wall of the other end of the inner cylinder 22, the other end of the outer cylinder 21 protrudes out of the inner cylinder 22, and the other end of the outer cylinder 21 has an inner flange 211, the inner flange 211 is spaced from the inner cylinder 22 to form an annular spacer 25 (that is, the annular spacer 25 is connected to the inner hole of the cylinder 2), the annular spacer 25 is connected to the cavity 24, an air inlet pipe 23 is inserted on the outer cylinder 21, the air inlet pipe 23 is connected to the cavity 24, and the annular spacer 25, the cavity 24 and the air inlet pipe 23 form an air blowing port.

[0049] In the above embodiment, the cavity 24 can be conveniently formed by the cooperation of the outer cylinder 21 and the inner cylinder 22, and the annular spacer 25 can be formed by the inner flange 211, and the annular spacer 25 can realize the uniform blowing of air in the circumferential direction inside the bottom of the cylinder body 2, so as to realize protection. Among them, the air inlet pipe 23 plays the role of the air inlet, and the annular spacer 25 plays the role of the air outlet.

[0050] Exemplarily, the inner cylinder 22 is connected to the connecting plate 1 by bolts.

[0051] Furthermore, the other end of the inner cylinder 22 has a notch on its outer side, and one end of the outer cylinder 21 has a boss 212 (annular structure), which is inserted into the notch and threadedly matched with the notch of the inner cylinder 22 .

[0052] In the above embodiment, the outer cylinder 21 and the inner cylinder 22 are reliably connected by the threaded cooperation between the notch and the boss 212 .

[0053] Exemplarily, the outer diameters of the boss 212 and the inner cylinder 22 are equal. The inner diameter of the inner flange 211 is equal to the inner diameter of the bottom end of the inner cylinder 22.

[0054] In this embodiment, the inner diameter of the air intake pipe 23 is 6-16 mm, and the flow rate of the inert gas in the air intake pipe 23 is 10-50 L / min, so as to ensure the air intake volume.

[0055] In addition, in the axial direction of the cylinder 2, the size of the annular interval is 0.5-3 mm, so as to ensure the gas outlet volume and gas outlet speed.

[0056] It should be noted that in other embodiments of the present invention, the air outlet may also be a plurality of through holes spaced apart along the circumferential direction of the bottom end of the cylinder 2, and the present invention does not impose any limitation on this.

[0057] See again Figure 1 The connecting plate 1 has strip holes 12 arranged at intervals, and a connecting bolt is movably inserted into at least one of the strip holes 12.

[0058] In the above embodiment, the position of the connecting plate 1 on the fixing bracket can be conveniently adjusted through the strip-shaped holes 12 and the connecting bolts, thereby adjusting the position of the cylinder 2 to achieve laser processing at different positions.

[0059] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for laser material reduction, characterized in that: The device comprises a connecting plate (1), a cylinder (2) and a plurality of air extraction pipes (3); The connecting plate (1) is used to connect the fixing bracket, and the connecting plate (1) is provided with a light-through hole (11); One end of the cylinder (2) is vertically fixed on the connecting plate (1), and the cylinder (2) and the light-through hole (11) are coaxially arranged; A plurality of the exhaust pipes (3) are evenly inserted into the cylinder (2) and are connected to the inner hole of the cylinder (2); each exhaust pipe (3) is used to connect to an exhaust device.

2. The device for laser material reduction according to claim 1, characterized in that: The other end of the cylinder (2) is provided with an air blowing port, the air blowing port being in communication with the inner hole of the cylinder (2), and the air blowing port being used for blowing inert gas into the cylinder (2).

3. The device for laser material reduction according to claim 2, characterized in that: The inert gas is nitrogen, helium or argon.

4. The device for laser material reduction according to claim 2, characterized in that: The cylinder (2) comprises an outer cylinder (21) and an inner cylinder (22) which are coaxially arranged, one end of the inner cylinder (22) is fixed to the connecting plate (1), one end of the outer cylinder (21) is sleeved on the inner cylinder (22), a cavity (24) is formed between the inner circumferential wall of the other end of the outer cylinder (21) and the outer circumferential wall of the other end of the inner cylinder (22), the other end of the outer cylinder (21) protrudes from the inner cylinder (22), and the outer cylinder (2 The other end of the outer tube (21) has an inner flange (211), the inner flange (211) is spaced from the inner tube (22) to form an annular spacer (25), the annular spacer (25) is connected to the cavity (24), an air inlet pipe (23) is inserted into the outer tube (21), the air inlet pipe (23) is connected to the cavity (24), and the annular spacer (25), the cavity (24) and the air inlet pipe (23) form the air blowing port.

5. The device for laser material reduction according to claim 4, characterized in that: The other end of the inner cylinder (22) has a notch on its outer side, and one end of the outer cylinder (21) has a boss (212). The boss (212) is inserted into the notch, and the boss (212) is threadably matched with the notch of the inner cylinder (22).

6. The device for laser material reduction according to claim 4, characterized in that: In the axial direction of the cylinder (2), the size of the annular space is 0.5-3 mm.

7. The device for laser material reduction according to any one of claims 1 to 6, characterized in that: In the direction away from the connecting plate (1), the outer diameter of the other end of the cylinder (2) and the inner diameter of the cylinder (2) both gradually decrease.

8. The device for laser material reduction according to any one of claims 1 to 6, characterized in that: The connecting plate (1) is provided with strip holes (12) arranged at intervals, and a connecting bolt is movably inserted into at least one of the strip holes (12).

9. The device for laser material reduction according to any one of claims 1 to 6, characterized in that: The axis of the exhaust pipe (3) and the axis of the cylinder (2) form an angle, and the range of the angle is 30-90°.

10. The device for laser material reduction according to any one of claims 1 to 6, characterized in that: The number of the exhaust pipes (3) is 2 to 6.

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