Laser cutting fixture

Abstract

The present application provides a laser cutting fixture, including a fixture body and a plurality of fixture brackets arranged on the bottom surface of the fixture body. The fixture body is provided with a plurality of separated parts formed by cutting, including an annular central part, a peripheral part and an intermediate part located between the central part and the peripheral part. The fixture bracket is radially arranged on the bottom surface of the fixture body and welded to the central part, the peripheral part and the intermediate part, wherein a first hollow part is formed between the central part and the intermediate part, and a second hollow part is formed between the peripheral part and the intermediate part. The fixture bracket is provided with a first avoidance groove located directly below the first hollow part and a second avoidance groove located directly below the second hollow part. The laser cutting fixture also includes a soft magnet, which is laid on the upper surface of the fixture body. The laser cutting fixture of the present application can support a thin plate cutting blade during laser cutting to prevent the thin plate cutting blade from deforming.

Description

Technical Field

[0001] The present application relates to a laser cutting fixture. Background Art

[0002] Currently, laser-cut thin plate products have become thinner and thinner, from the original thickness of several millimeters to less than 1 mm. There are already 0.5mm, 0.35mm, 0.27mm, 0.2mm, and 0.15mm products. However, the thinner the plate, the easier it is to deform during processing, and the surface is prone to collapse. Usually, the deformation of the cut product is between 0.1-0.5mm.

[0003] Therefore, it is necessary to provide a laser cutting fixture that can support a thin plate during laser cutting. Utility Model Content

[0004] The present application provides a laser cutting fixture capable of supporting a thin plate cutting blade.

[0005] Specifically, the present application is implemented through the following technical solutions: a laser cutting fixture, comprising a fixture body and a plurality of fixture brackets arranged on the bottom surface of the fixture body, the fixture body being provided with a plurality of separated parts formed by cutting, including an annular central part, an outer peripheral part and an intermediate part located between the central part and the outer peripheral part, the fixture bracket being radially arranged on the bottom surface of the fixture body and being welded to the central part, the outer peripheral part and the intermediate part, wherein a first hollow part is formed between the central part and the intermediate part, a second hollow part is formed between the outer peripheral part and the intermediate part, the fixture bracket being provided with a first avoidance groove located directly below the first hollow part and a second avoidance groove located directly below the second hollow part; and also comprising soft magnetism, which is laid on the upper surface of the fixture body.

[0006] According to an embodiment of the utility model, the annular central portion, the peripheral portion and the intermediate portion are respectively provided with positioning holes corresponding to each of the clamp brackets, and the clamp brackets are respectively provided with positioning ribs inserted into each of the positioning holes.

[0007] According to an embodiment of the present invention, the height of the first avoidance groove and the second avoidance groove is greater than 10 mm.

[0008] According to an embodiment of the present invention, the number of the clamp brackets is 4 to 8.

[0009] According to an embodiment of the utility model, a reference hole is also provided on the clamp body.

[0010] According to an embodiment of the present invention, the clamp body is cut from a 3 mm steel plate.

[0011] According to an embodiment of the present invention, the clamp bracket is cut from 3 mm.

[0012] The laser cutting fixture of the present application can support the thin plate cutting piece during laser cutting to prevent the thin plate cutting piece from deforming.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a state diagram of a laser cutting fixture in use according to one embodiment of the present application;

[0015] Figure 2 for Figure 1 A three-dimensional composite diagram of the laser cutting fixture in FIG.

[0016] Figure 3 for Figure 1 3D exploded view of the laser cutting fixture and cutting disc;

[0017] Figure 4 for Figure 1 The cross-sectional view of the laser cutting fixture in use actually omits the laser head.

[0018] Description of reference numerals:

[0019] Laser cutting fixture 100, fixture body 1, central part 11, outer part 12, middle part 13, positioning hole 14, first hollow part 15, second hollow part 16, reference hole 17, fixture bracket 2, positioning rib 21, first avoidance groove 22, second avoidance groove 23, first hollow part 15, second hollow part 16, soft magnet 3, cutting blade 200, pressure plate 300, laser head 400. DETAILED DESCRIPTION

[0020] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices, systems, equipment and methods consistent with some aspects of the present application.

[0021] refer to Figure 1As shown, a laser cutting fixture 100 is used to support the cutting blade 200 when cutting a thin plate cutting blade 200. The outer contour of the laser cutting fixture 100 is a rectangle. When in use, the laser cutting fixture 100 is set horizontally, and its two opposite sides are clamped and fixed on the laser machine tool platen 300. The laser head 400 cuts from the top of the laser cutting fixture 100 to cut the cutting blade 200 into a preset shape.

[0022] refer to Figures 2 to 4 As shown, the laser cutting fixture 100 includes a fixture body 1, a plurality of fixture brackets 2 and soft magnets 3. The fixture body 1 includes a plurality of separated parts formed by cutting. The fixture brackets 2 connect the various parts of the fixture body 1 from the bottom side to connect the fixture body 1 into a whole. The soft magnets 3 are laid on the upper surface of the fixture body 1.

[0023] In this embodiment, the clamp body 1 includes three parts: an annular central part 11, an outer part 12 and an intermediate part 13 located between the central part 11 and the outer part 12. These three parts are cut from the same steel plate and are separated from each other. The thickness of the steel plate is preferably 3 mm.

[0024] The fixture bracket 2 is cut from a steel plate, the thickness of the steel plate is preferably 3 mm, and the number of the fixture brackets 2 is preferably 4 to 8. The fixture bracket 2 is generally a vertically arranged sheet structure, the fixture bracket 2 is radially arranged on the bottom side of the fixture body 1 and is welded to the central part 11, the peripheral part 12 and the middle part 13 of the fixture body 1 at the same time, connecting the fixture body 1 into a whole, so that the fixture body 1 is fixed on the laser machine tool to support the cutting blade 200, and prevent the cutting blade 200 from being deformed after cutting.

[0025] At least three positioning ribs 21 are provided on the upper end surface of the clamp bracket 2, and a positioning hole 14 is provided in each of the central portion 11, the peripheral portion 12 and the intermediate portion 13 corresponding to each clamp bracket 2. The positioning rib 21 is inserted into the positioning hole 14, and the clamp bracket 2 is fixed to the lower surface of the clamp body 1 by welding. The size of the positioning hole 14 is recommended to be a 3mm*3mm square.

[0026] The top side of the clamp bracket 2 is also provided with a first avoidance groove 22 and a second avoidance groove 23 which are recessed downward from the upper end surface thereof. The first avoidance groove 22 and the second avoidance groove 23 are provided corresponding to the laser cutting position. Specifically, a first hollowing position 15 is formed between the central portion 11 and the middle portion 13, and a second hollowing position 16 is formed between the outer portion 12 and the middle portion 13. The first avoidance groove 22 is located directly below the first hollowing position 15, and the second avoidance groove 23 is located directly below the second hollowing position 16. The height of the first avoidance groove 22 and the second avoidance groove 23 is above 10 mm to prevent the clamp bracket 2 from being cut by the laser.

[0027] The outer contour of the fixture body 1 is generally rectangular, and is 30-40 mm larger than the cutting blade 200 on one side, so as to save the material cost of the fixture body 1. The shape of the fixture body 1 is generally a contoured cutting blade 200, and a gap of 1-2 mm on one side is placed between the fixture body 1 and the cutting blade 200, so as to support the cutting blade 200 and prevent the cutting blade 200 from deforming.

[0028] The bottom surface of the soft magnet 3 is glued so that the soft magnet 3 can be attached to the fixture body 1. The front surface of the soft magnet 3 is magnetic and can absorb and fix the cutting blade 200 to prevent the cutting blade 200 from changing position during processing. The thickness of the soft magnet 3 is 1mm, and the outer contour of the soft magnet 3 is 10mm smaller than the outer contour of the fixture body 1 to avoid the laser machine tool plate 300. The shape of the soft magnet 3 is also the contour cutting blade 200, and the gap between the soft magnet 3 and the cutting blade 200 is 1-2mm on one side. The soft magnet 3 can effectively absorb and fix the cutting blade 200 on the upper surface of the fixture body 1.

[0029] The processing process of the laser cutting fixture 100 is as follows:

[0030] 1. In the preparation stage, a 3 mm thick steel plate is cut into a rectangle according to the length and width of the fixture body 1, wherein the outer contour of the fixture body 1 is 30-40 mm larger than the outer contour of the cutting blade 200 on one side;

[0031] 2. The first cutting: according to the number of the clamp brackets 2 and the positions of the positioning ribs 21, all the positioning holes 14 are cut on the clamp body 1, and a reference hole 17 is cut on the clamp body 1 for the next reset; a plurality of clamp brackets 2 are cut from a 3mm thick steel plate;

[0032] 3. Welding: welding the cut clamp brackets 2 to the bottom surface of the clamp body 1;

[0033] 4. Second cutting: Fix the fixture body 1 welded with the fixture bracket 2 to the laser machine plate 300, find the position of the originally reserved reference hole 17, and cut the shape of the fixture body 1. The shape of the fixture body 1 is generally a contoured cutting blade 200, and a gap of 1-2mm is placed on one side with the cutting blade 200. Some small gaps can be left empty to achieve large-area fixing. After cutting, the fixture body 1 forms the above three separated parts;

[0034] 5. Lay the soft magnetic material 3. Paste and fix the prepared 1 mm thick soft magnetic material 3 on the upper surface of the fixture body 1. The outer contour of the soft magnetic material 3 is 10 mm smaller than that of the fixture body 1 to avoid interference with the laser machine tool plate 300.

[0035] 6. Cutting the soft magnet 3: Find the reference hole reserved on the fixture body 1, cut the soft magnet 3, and leave a gap of 1-2mm on one side between the soft magnet 3 and the cutting piece 200. Some small gaps can be left empty to fix a large area. The cut soft magnet 3 is correspondingly attached to the upper surface of the three parts of the fixture body 1. After cutting, the laser cutting fixture 100 is completed.

[0036] The above is only a preferred implementation mode of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A laser cutting fixture, characterized in that: It includes a clamp body and a plurality of clamp brackets arranged on the bottom surface of the clamp body, the clamp body is provided with a plurality of separated parts formed by cutting, including an annular central part, an outer peripheral part and a middle part located between the central part and the outer peripheral part, the clamp bracket is radially arranged on the bottom surface of the clamp body and welded to the central part, the outer peripheral part and the middle part, wherein a first hollow part is formed between the central part and the middle part, a second hollow part is formed between the outer peripheral part and the middle part, the clamp bracket is provided with a first avoidance groove located directly below the first hollow part and a second avoidance groove located directly below the second hollow part; it also includes soft magnets, which are laid on the upper surface of the clamp body.

2. The laser cutting fixture according to claim 1, characterized in that: The annular central portion, the peripheral portion and the intermediate portion are respectively provided with positioning holes corresponding to each of the clamp brackets, and the clamp brackets are correspondingly provided with positioning ribs inserted into each of the positioning holes.

3. The laser cutting fixture according to claim 2, characterized in that: The height of the first avoidance groove and the second avoidance groove is greater than 10 mm.

4. The laser cutting fixture according to claim 2, characterized in that: The number of the clamp brackets is 4 to 8.

5. The laser cutting fixture according to claim 1, characterized in that: The clamp body is also provided with a reference hole.

6. The laser cutting fixture according to claim 1, characterized in that: The clamp body is cut from a 3 mm steel plate.

7. The laser cutting fixture according to claim 1, characterized in that: The clamp bracket is cut from 3mm.

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