Laser cutting device for stator and rotor silicon steel sheets

Abstract

The utility model discloses a stator and rotor silicon steel sheet laser cutting device which comprises a laser cutting tool which comprises a tool panel, a stator supporting plate is arranged in the tool panel, and a rotor supporting plate is arranged in the stator supporting plate. The tool panel, the stator supporting plate and the rotor supporting plate are located on the same plane. A positioning adjustment mechanism; the positioning adjusting mechanism comprises a sliding rail support and a tool supporting block. The sliding rail supports are connected to the two ends of the tool supporting block, sliding rails are arranged on the tops of the sliding rail supports, the tool supporting block is slidably installed on the sliding rails, and the tool panel is fixed to the upper portion of the tool supporting block. The laser cutting tool can be rapidly positioned, operation is convenient, the supporting face is larger, cutting stability is better, the laser cutting tool can be repeatedly used when a product is remodeled, only the cutting tool needs to be replaced, and the laser cutting tool has the advantage of being flexible to a certain degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cutting, and in particular relates to a stator and rotor silicon steel sheet laser cutting device. Background Art

[0002] Silicon steel sheets are key components of the stator and rotor of motors. Their performance is not only related to the energy loss of the motor, but also affects the performance, volume and weight of the motor products. Traditional silicon steel sheet processing mainly adopts die stamping, which requires the development of special dies, has a long manufacturing cycle and high costs. Laser cutting is now widely used to perform laser forming processing on silicon steel sheets. It does not require mold opening and can cut any pattern, shortening the manufacturing cycle and reducing R&D costs.

[0003] The thickness of silicon steel sheets used in motors is generally between 0.2mm and 0.5mm. It is easy to produce cutting burrs or deformation on silicon steel sheets during laser cutting. The cutting burrs on silicon steel sheets will affect the electromagnetic characteristics, output power and service life of the motor. Therefore, it is very important to control burrs and deformation when cutting silicon steel sheets. The stator and rotor are stacked with single silicon steel sheets. The size tolerance of a single sheet will cause the size tolerance of the stator and rotor assembly and make assembly difficult. Therefore, there are strict requirements for the cutting size accuracy of a single sheet.

[0004] The support and clamping device on the current silicon steel sheet laser cutting machine will damage the silicon steel sheet if the clamping force is too large during use. If the clamping force is insufficient, the silicon steel sheet will shake under the action of compressed air during cutting, affecting the cutting accuracy. Therefore, the current support and clamping devices are mostly suitable for thick plates with a thickness of more than 1mm and relatively low cutting accuracy requirements. Due to the complex shape and structure of the stator and rotor, it is difficult for general support and clamping devices to ensure that every tiny feature structure can be effectively supported and clamped during the cutting process, especially the cutting accuracy of the micro-slot position is difficult to ensure. Therefore, it is necessary to improve and optimize the existing laser cutting device to meet the requirements of silicon steel sheet laser cutting for surface quality and cutting accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a stator and rotor silicon steel sheet laser cutting device, which can realize rapid positioning of laser cutting tooling, is easy to operate, has a larger support surface, and has better cutting stability. It can be reused when the product is changed, and only the cutting tooling needs to be replaced, and it has certain flexibility.

[0006] The specific contents of the plan are as follows:

[0007] The utility model describes a stator and rotor silicon steel sheet laser cutting device, comprising: a laser cutting tool, the laser cutting tool comprising a tool panel, a stator support plate is arranged inside the tool panel, a rotor support plate is arranged inside the stator support plate; the tool panel, the stator support plate and the rotor support plate are in the same plane;

[0008] Positioning adjustment mechanism; the positioning adjustment mechanism includes a slide rail bracket and a tooling support block; the slide rail bracket is connected to both ends of the tooling support block, a slide rail is provided on the top of the slide rail bracket, the tooling support block is slidably installed on the slide rail, and the tooling panel is fixed on the upper part of the tooling support block.

[0009] Preferably, the laser cutting tool further comprises a connecting plate, and the tool panel, the stator support plate and the rotor support plate are connected to form a same plane through the connecting plate.

[0010] Preferably, a groove is provided on the upper portion of the tooling support block, and the edge of the tooling panel is placed in the groove; the positioning adjustment mechanism also includes a pressure strip, and the pressure strip cooperates with the groove for locking.

[0011] Preferably, it also includes contoured magnetic patches having the same shapes as the tooling panel, the stator support plate and the rotor support plate, wherein the contoured magnetic patches are provided with magnetic material on the upper portion and are adhered to the upper surfaces of the tooling panel, the stator support plate and the rotor support plate on the lower portion.

[0012] Preferably, the positioning adjustment mechanism further comprises a stopper, and the stopper is slidably mounted on the slide rail.

[0013] Preferably, the positioning adjustment mechanism further comprises a bracket reinforcement rib and a bracket bottom plate, the bracket bottom plate is connected to the lower part of the slide rail bracket, and the bracket reinforcement rib is connected between the bracket bottom plate and the slide rail bracket.

[0014] Preferably, it further comprises a material drop box, which is arranged below the tooling panel and is slidably connected to the slide rail brackets on both sides.

[0015] Preferably, the positioning and adjusting mechanism further comprises a quick clamp, and the quick clamp is installed on the slide rail bracket.

[0016] Preferably, the stator and rotor silicon steel sheet laser cutting device also includes a dust extraction fixing plate and a dust extraction port, wherein both ends of the dust extraction fixing plate are connected to the side surfaces of the slide rail bracket; the dust extraction port is a trumpet-shaped structure, and the large-diameter end of the dust extraction port is connected to the dust extraction fixing plate.

[0017] Preferably, the rotor support plate comprises a rotor crescent support plate and a rotor star support plate which are in the same plane, and the rotor star support plate is arranged inside the rotor crescent support plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. When the positioning and adjustment mechanism of the utility model changes the cutting shape of different products, it is only necessary to replace the laser cutting tooling without replacing the main structure of the device. The positioning and adjustment mechanism includes a slide rail and a pressure strip. The two ends of the pressure strip are locked with the tooling support block, so that the support surface of the tooling panel is larger, so that the tooling panel in the groove of the tooling support block is evenly stressed, and the cutting stability is better. It can also be adjusted according to tooling panels of different sizes. The operation is convenient, and the tooling panel can be quickly positioned and clamped to ensure that each tiny feature structure can be effectively supported and clamped during the cutting process, thereby improving the cutting accuracy of the micro-slot position.

[0020] 2. The laser cutting tool of the utility model can realize the rapid positioning and support of silicon steel sheets. The contoured magnetic stickers can adsorb and fix the silicon steel sheets to prevent the silicon steel sheets from shaking during the laser cutting process, which can effectively ensure the cutting accuracy of the silicon steel sheets. The cutting tool can be integrated according to the structural characteristics of the stator and rotor of the same product, so that the stator and rotor silicon steel sheets can share a set of cutting tool. One sheet can cut one stator and one rotor punching sheet, which reduces the time of tool switching and loading, and effectively improves the utilization rate of materials and cutting efficiency.

[0021] 3. The utility model provides a material drop box so that waste generated during the cutting process falls into the material drop box for centralized storage. The material drop box is a drawer-type structure, which is easy to take and put, and can prevent the operator from being scratched by sharp parts of the waste during the waste collection and processing process, thereby improving operational safety.

[0022] 4. The utility model provides a dust extraction port, so that the dust generated during the cutting process can be purified through an air purification device connected to the trumpet-shaped dust extraction port. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the laser cutting tool of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the positioning adjustment mechanism of the utility model;

[0026] In the figure:

[0027] 1. Laser cutting tool; 1-1. Tool panel; 1-2. Stator support plate; 1-3. Rotor crescent support plate; 1-4. Rotor star support plate; 1-5. Connecting plate; 2. Positioning adjustment mechanism; 2-1. Slide rail; 2-2. Tool support block; 2-3. Block; 2-4. Bracket bottom plate; 2-5. Slide rail bracket; 2-6. Bracket reinforcement rib; 2-7. Dust extraction fixing plate; 2-8. Quick clamp; 2-9. Pressure strip; 3. Blanking box; 4. Dust extraction port. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0030] It should be noted that the directions or positional relationships indicated by the terms "front", "rear", "inside" and "outside" in the present invention are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0032] Embodiment 1:

[0033] See also Figure 1-3As shown, a stator and rotor silicon steel sheet laser cutting device provided in an embodiment of the present application includes: a laser cutting tool 1, the laser cutting tool 1 includes a tool panel 1-1, a stator support plate 1-2 is provided in the tool panel 1-1, and a rotor support plate is provided in the stator support plate 1-2; the tool panel 1-1, the stator support plate 1-2 and the rotor support plate are in the same plane; a positioning adjustment mechanism 2; the positioning adjustment mechanism 2 includes two relatively arranged slide rail brackets 2-5 and two tool support blocks 2-2; the slide rail bracket 2-5 is connected to the two ends of the tool support block 2-2, and a slide rail 2-1 is provided on the top of the slide rail bracket 2-5, the tool support block 2-2 is slidably installed on the slide rail 2-1, and the tool panel 1-1 is fixed to the upper part of the tool support block 2-2.

[0034] The tooling panel 1-1, stator support plate 1-2, and rotor support plate are all laser cut from 2mm stainless steel plates. The outer dimensions of the tooling panel 1-1 are determined by the size of the silicon steel sheet blank. Usually, the blank is the center, and each side is extended by 10mm for tooling positioning and clamping; the stator support plate 1-2 and the rotor support plate are respectively designed according to the surface characteristics of the stator and rotor, and are offset 1mm to the center along the cutting contour line, which can not only avoid the laser cutting position, but also effectively support each characteristic structure to ensure cutting accuracy.

[0035] At the same time, the cutting tool is integratedly designed according to the structural characteristics of the stator and rotor of the same product, so that the stator and rotor silicon steel sheets laser cutting share a set of cutting tool. One sheet of material can cut one stator and one rotor punching sheet, reducing the time of tool switching and loading, and effectively improving material utilization and cutting efficiency.

[0036] A slide rail 2-1 and a tooling support block 2-2 are provided in the positioning adjustment mechanism 2. When cutting different products, the position of the tooling support block 2-2 on the slide rail 2-1 can be adjusted according to the size of the tooling panel 1-1 of the laser cutting tool 1 to achieve rapid positioning of the laser cutting tool 1.

[0037] See also Figure 2 As shown, the laser cutting tool 1 also includes a connecting plate 1-5, and the tool panel 1-1, the stator support plate 1-2 and the rotor support plate are connected to the same plane through the connecting plate 1-5.

[0038] Since the tooling panel 1-1, the stator support plate 1-2 and the rotor support plate are independent structures and are not connected to each other, they are connected through the tooling connection plate 1-5. The tooling panel 1-1 and each support plate are provided with a 2mm*2mm square groove, and the connection plate 1-5 is provided with a convex structure of the same size at the corresponding position. When assembling, after applying adhesive on the convex part, align it with the square groove and make it fully embedded. After the adhesive is completely cured, the assembly of the laser cutting tool 1 is completed.

[0039] See also Figure 3As shown, a groove is provided on the upper part of the tool support block 2-2, and the edge of the tool panel 1-1 is placed in the groove; the positioning adjustment mechanism 2 also includes a pressure strip 2-9, and the two ends of the pressure strip 2-9 are screwed to the two ends of the tool support block 2-2, and the edges of the two ends of the tool panel 1-1 are pressed together with the groove. By setting two 2mm grooves on the opposite sides of the two tool support blocks 2-2, the tool panel 1-1 is placed in the grooves, the tool panel 1-1 is positioned, and the tool panel 1-1 is pressed by the pressure strip 2-9, the support surface is larger, and the cutting stability is better.

[0040] The laser cutting tool 1 also includes a contoured magnetic tile having the same shape as the tool panel 1-1, the stator support plate 1-2 and the rotor support plate, respectively. The contoured magnetic tile has a magnetic material on the upper part and is pasted on the upper surface of the tool panel 1-1, the stator support plate 1-2 and the rotor support plate. The contoured magnetic tile has a thickness of 1 mm, and its upper surface is a magnetic material, and its lower surface is a sticky material similar to double-sided tape. The lower surface is pasted on the tool panel 1-1, the stator support plate 1-2 and the rotor support plate, and can absorb the silicon steel sheet during the cutting process, thereby avoiding the shaking of the silicon steel sheet during the cutting process and improving the cutting accuracy.

[0041] See also Figure 3 As shown, the positioning adjustment mechanism 2 also includes a stopper 2-3, which is slidably mounted on the slide rail 2-1. The stopper 2-3 limits the tooling support block 2-2, thereby limiting the tooling panel 1-1.

[0042] See also Figure 3 As shown, the positioning adjustment mechanism 2 also includes a bracket reinforcement rib 2-6 and a bracket bottom plate 2-4, the bracket bottom plate 2-4 is connected to the lower part of the slide rail bracket 2-5, and the bracket reinforcement rib 2-6 is connected between the bracket bottom plate 2-4 and the slide rail bracket 2-5. The bracket reinforcement rib 2-6 improves the structural stability of the positioning adjustment mechanism 2.

[0043] See also Figure 1 As shown, the laser cutting device also includes a blanking box 3, which is arranged below the tooling panel 1-1 and is slidably connected to the slide rail brackets 2-5 on both sides. The blanking box 3 is a drawer-type structure, which is easy to take and put, and can prevent the operator from being scratched by the sharp parts of the waste during the waste collection and processing process, thereby improving the safety of operation.

[0044] See also Figure 3 As shown, the positioning adjustment mechanism 2 also includes a quick clamp 2-8, which is installed on the slide rail bracket 2-5 and can limit the blanking box 3. During the cutting process, the quick clamp 2-8 is closed to fix the blanking box 3. When the waste needs to be removed, the quick clamp 2-8 is opened to pull out the blanking box 3.

[0045] See also Figure 1 , Figure 3 As shown, the laser cutting device also includes a dust extraction fixing plate 2-7 and a dust extraction port 4, the two ends of the dust extraction fixing plate 2-7 are connected to the side of the slide rail bracket 2-5; the dust extraction port 4 is a trumpet-shaped structure, and the large-diameter end of the dust extraction port 4 is connected to the dust extraction fixing plate 2-7. The dust generated during the cutting process can be purified by connecting the trumpet-shaped dust extraction port 4 to an external air purification device.

[0046] See also Figure 2 As shown, the rotor support plate includes a rotor crescent support plate 1-3 and a rotor star support plate 1-4 in the same plane, and the rotor star support plate 1-4 is arranged inside the rotor crescent support plate 1-3. Similarly, the rotor crescent support plate 1-3 and the rotor star support plate 1-4 are also cut from 2mm stainless steel plates by laser, and are designed according to the profile characteristics of the rotor, and are both installed on the connecting plate 1-5.

[0047] Furthermore, there are 8 connecting plates 1-5 in total, and the angle between adjacent connecting plates 1-5 is 45°, which evenly supports the panel and the support plate so that they are in the same plane, thereby ensuring that the supporting surface for cutting the silicon steel sheet is flat.

[0048] The working process of the stator and rotor silicon steel sheet laser cutting device described in this embodiment is as follows:

[0049] The process of installing the laser cutting tooling: place the edges at both ends of the tooling panel 1-1 in the grooves of the two tooling support blocks 2-2 respectively, and move the two tooling support blocks 2-2 to appropriate positions along the slide rail 2-1, limit one of the tooling support blocks 2-2 by the stop block 2-3, and finally place the pressure strip 2-9 on the tooling panel 1-1, so that the two ends of the pressure strip 2-9 are locked with the tooling support blocks 2-2.

[0050] Cutting process: Place the sheet material that has been unrolled and cut into single pieces on the upper surface of the tooling panel 1-1, place the blanking box 3 under the tooling panel 1-1, close the quick clamp 2-8, fix the blanking box 3, and then start laser cutting. The stator and rotor silicon steel sheets cut by laser are left on the upper surface of the tooling panel 1-1, and the waste materials after cutting fall into the blanking box 3. Open the quick clamp 2-8 and pull out the blanking box 3. Finally, the dust falling into the blanking box 3 is extracted and purified through the dust extraction port 4.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stator and rotor silicon steel sheet laser cutting device, characterized in that: include: A laser cutting tool (1), the laser cutting tool (1) comprising a tool panel (1-1), a stator support plate (1-2) being arranged inside the tool panel (1-1), and a rotor support plate being arranged inside the stator support plate (1-2); the tool panel (1-1), the stator support plate (1-2) and the rotor support plate being in the same plane; A positioning adjustment mechanism (2); the positioning adjustment mechanism (2) comprises a slide rail bracket (2-5) and a tooling support block (2-2); the slide rail bracket (2-5) is connected to both ends of the tooling support block (2-2); a slide rail (2-1) is provided on the top of the slide rail bracket (2-5); the tooling support block (2-2) is slidably mounted on the slide rail (2-1); and the tooling panel (1-1) is fixed to the upper part of the tooling support block (2-2).

2. The stator and rotor silicon steel sheet laser cutting device according to claim 1 is characterized in that: The laser cutting tool (1) further comprises a connecting plate (1-5), and the tool panel (1-1), the stator support plate (1-2) and the rotor support plate are connected to form a same plane via the connecting plate (1-5).

3. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: The tooling support block (2-2) is provided with a groove on its upper portion, and the edge of the tooling panel (1-1) is placed in the groove; the positioning adjustment mechanism (2) also includes a pressure strip (2-9), and the pressure strip (2-9) cooperates with the groove for locking.

4. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: It also comprises contoured magnetic tiles which are respectively the same in shape as the tooling panel (1-1), the stator support plate (1-2) and the rotor support plate, wherein the contoured magnetic tiles are provided with magnetic material on the upper part and are adhered to the upper surface of the tooling panel (1-1), the stator support plate (1-2) and the rotor support plate on the lower part.

5. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: The positioning adjustment mechanism (2) also includes a stopper (2-3), and the stopper (2-3) is slidably mounted on the slide rail (2-1).

6. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: The positioning adjustment mechanism (2) further comprises a bracket reinforcing rib (2-6) and a bracket bottom plate (2-4), wherein the bracket bottom plate (2-4) is connected to the lower part of the slide rail bracket (2-5), and the bracket reinforcing rib (2-6) is connected between the bracket bottom plate (2-4) and the slide rail bracket (2-5).

7. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: It also comprises a material drop box (3), wherein the material drop box (3) is arranged below the tooling panel (1-1), and the material drop box (3) is slidably connected to the slide rail brackets (2-5) on both sides.

8. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: The positioning adjustment mechanism (2) also includes a quick clamp (2-8), and the quick clamp (2-8) is installed on the slide rail bracket (2-5).

9. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: It also includes a dust extraction fixing plate (2-7) and a dust extraction port (4), and the two ends of the dust extraction fixing plate (2-7) are connected to the side surfaces of the slide rail bracket (2-5); The dust extraction port (4) is of a trumpet-shaped structure, and the large-diameter end of the dust extraction port (4) is in communication with the dust extraction fixing plate (2-7).

10. The stator and rotor silicon steel sheet laser cutting device according to claim 1, characterized in that: The rotor support plate comprises a rotor crescent support plate (1-3) and a rotor star support plate (1-4) located in the same plane, and the rotor star support plate (1-4) is arranged inside the rotor crescent support plate (1-3).

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