Jig for machining inclined plane by laser cutting machine
By designing a fixture for laser cutting machines, which uses inclined surfaces and suction holes to fix the sheet metal, the problem of laser cutting machines having difficulty processing inclined surfaces is solved, achieving low-cost, stable inclined surface processing and corrosion prevention.
Patent Information
- Application Number
- CN202423282818.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing laser cutting machines have difficulty processing beveled surfaces on sheet metal, which necessitates the use of more expensive CNC machining centers, thus increasing processing costs.
Design a fixture that includes a plate and a support base. The support base has an inclined surface and an air intake hole. The plate is fixed by negative pressure to keep it in an inclined state. A through groove is provided at the slot to discharge laser gas and avoid corrosion.
This technology enables low-cost and stable processing of beveled surfaces on sheet metal using laser cutting machines, avoiding damage to the sheet metal and corrosion on the back of the product, thus reducing processing costs.
Smart Images
Figure CN223863097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for processing inclined surfaces in a laser cutting machine. Background Technology
[0002] Light guide plates are products formed by cutting sheet metal using a laser cutting machine. As is well known, the sheet metal is placed horizontally on the laser cutting table for cutting, and the cut surface is perpendicular to the sheet surface. Existing laser cutting machines for sheet metal typically have vent holes on their surface and an air compressor is usually installed at the bottom. The sheet metal to be cut is placed on the laser cutting table, covering the vent holes. The air compressor then operates, extracting air from the bottom of the sheet metal through the vent holes, thus keeping the sheet metal stable on the laser cutting table.
[0003] However, when the desired product has a beveled side, existing laser processing machines struggle to produce such products. Therefore, CNC machining centers must be used, but these are more expensive, increasing the overall cost of cutting and processing the material. Improvements are needed to address this issue. Utility Model Content
[0004] The purpose of this invention is to provide a fixture that can install and fix a sheet metal so that the sheet metal is kept in an inclined state, so that a laser cutting machine can perform inclined surface processing on the sheet metal.
[0005] This utility model proposes a fixture for processing beveled surfaces in a laser cutting machine, comprising a plate and a support base. A mounting groove is formed on the surface of the plate. The support base is located at the center of one end of the mounting groove. The support base includes a supporting part and a supporting part. The top surface of the supporting part is higher than the top surface of the supporting part. The top surface of the supporting part slopes downward from the end near the supporting part to form a first inclined surface. A slot is formed at the end of the mounting groove away from the support base. The horizontal position of the slot is lower than that of the support base. A second inclined surface is formed between the slot and the support base for transition. The slope ratio of the second inclined surface is equal to that of the first inclined surface. A groove and several suction holes are formed on the second inclined surface, and the groove communicates with each suction hole.
[0006] Preferably, the groove is stepped to form a stepped groove.
[0007] Preferably, the surface of the abutting part facing the support part is the abutting surface, and the abutting surface is perpendicular to the first inclined surface of the support part.
[0008] Preferably, a receiving groove is formed at the connection between the support part and the abutment part.
[0009] Preferably, a through groove is formed along the length direction of the slot.
[0010] Preferably, both the plate and the support base are made of bakelite material.
[0011] Preferably, the plate body has two through-holes forming a suction hole, and the two suction holes are symmetrical about the line where the support base is located.
[0012] Preferably, the stepped groove has five steps.
[0013] Preferably, the slope ratio of the first inclined surface is set to "A" and satisfies 20%. <A<100%。
[0014] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:
[0015] 1. The fixture has grooves and several suction holes. The grooves are stepped. Under the action of the air compressor in the laser table, the air in the grooves and suction holes is removed, so that the plate and the fixture are kept under negative pressure. This makes the plate firmly installed and fixed on the fixture, so that the laser cutting machine can perform bevel processing on the plate. The stepped grooves make the suction force on the plate uniform.
[0016] 2. A receiving groove is formed at the connection between the support part and the abutment part. After the plate is installed, one end of its bottom is embedded in the receiving groove, so as to avoid damage to one end of the plate during installation or processing.
[0017] 3. A through groove is formed along the length of the slot. During the cutting process, the laser gas that penetrates the plate passes through the through groove and exits, so that the back of the light guide plate product formed by the laser cutting machine is not corroded by the reflected laser gas. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a fixture for processing inclined surfaces in a laser cutting machine, according to an embodiment.
[0019] Figure 2 This is a schematic diagram of the installation of the sheet metal on the fixture in the example embodiment;
[0020] Figure 3 This is a schematic diagram of the support base in the embodiment;
[0021] Figure 4 This is a cross-sectional view of a fixture used in laser cutting machines to process bevels, according to an embodiment.
[0022] Figure 5 This is a schematic diagram of the structure of the groove, air intake hole, and through groove in the embodiment;
[0023] Figure 6 It is a top view of the embodiment plate installed on the fixture;
[0024] Figure 7 It is a bottom view of a fixture for machining an inclined surface by a laser cutting machine in an embodiment.
[0025] Reference numerals: 1, plate body; 11, installation groove; 12, card slot; 13, groove; 14, suction hole; 15, through groove; 16, second inclined surface; 2, support base; 21, support portion; 22, abutting portion; 23, first inclined surface; 24, abutting surface; 25, receiving groove; 3, plate. Detailed implementation manners
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following will further describe the present utility model in detail with reference to the Figure 1-7 accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0027] Refer to Figure 1 and Figure 2 , a fixture for machining an inclined surface by a laser cutting machine. The fixture is placed on the laser table, and the plate 3 is installed and placed on the fixture, and the plate 3 is cut by the laser cutting machine to form an inclined surface. The fixture includes a plate body 1 and a support base 2. An installation groove 11 is formed on the surface of the plate body 1, and the horizontal projection shape of the formed installation groove 11 is the same as the shape of the plate 3 to be machined, both being isosceles trapezoid shapes. The support base 2 is arranged at one end of the top edge of the installation groove 11, and the installation groove 11 is symmetric about the straight line where the support base 2 is located.
[0028] Refer to Figure 3 , the support base 2 includes a support portion 21 and an abutting portion 22. The support portion 21 is located on the inner side of the installation groove 11, and the abutting portion 22 is located on the outer side of the installation groove 11; the horizontal height of the top surface of the abutting portion 22 is set to be higher than the horizontal height of the top surface of the support portion 21, the top surface of the support portion 21 is set as the first inclined surface 23, and the height of the surface of the first inclined surface 23 gradually decreases from the end of the support portion 21 close to the abutting portion 22 to the end away from the abutting portion 22. The slope ratio of the first inclined surface 23 at the top of the support portion 21 is set to "A", and the slope ratio of the first inclined surface 23 at the top of the support portion 21 satisfies 20% < A < 100%. A card slot 12 is formed in the installation groove 11, and the formed card slot 12 is located at the end of the installation groove 11 away from the support base, and the straight line direction where the card slot 12 is located is perpendicular to the straight line direction where the support base 2 is located.
[0029] Refer to Figure 4 、 Figure 5 and Figure 6 Since the horizontal position height of the card slot 12 is lower than that of the support base 2, a second inclined surface 16 is formed between the card slot 12 and the support base 2 for transition, and the slope ratio of the set second inclined surface 16 is equal to that of the first inclined surface 23. When the plate 3 is installed and placed on the fixture, the plate 3 is clamped in the installation groove 11, and one end of the plate 3 is inserted into the card slot 12, so that the plate 3 abuts against the surfaces of the first inclined surface 23 and the second inclined surface 16, and the end of the plate 3 abuts against the abutting portion 22, and the two side walls of the plate 3 abut against the two side walls of the installation groove 11. Thereby, the plate 3 is kept in an inclined state, and the bottom end of the isosceles trapezoidal plate 3 is cut by a laser cutting machine, so that an inclined surface is formed at the bottom end of the isosceles trapezoidal plate 3. After the plate 3 is installed on the fixture, in order to avoid damaging the top end of the plate 3, a receiving groove 25 is formed at the connection of the support portion 21 and the abutting portion 22. After the plate 3 is installed and placed on the fixture, the bottom end of the top end of the plate 3 is clamped in the receiving groove 25.
[0030] During the process of cutting the plate 3 by a laser cutting machine, in order to keep the position of the plate 3 stable on the fixture. A plurality of air suction holes 14 are formed through the second inclined surface 16, and a groove 13 is formed on the surface of the second inclined surface 16. The formed groove 13 is connected to each air suction hole 14, and the formed groove 13 is in a stepped shape to form a stepped groove. After the plate 3 is installed and clamped in the installation groove 11 of the plate body 1, the air compressor自带 in the laser table sucks away the air in the air suction holes 14, so that the air suction holes 14 of the plate body 1 are in a negative pressure state, thereby keeping the position of the plate 3 on the fixture stable. The air suction holes 14 formed on the plate body 1 are set to be two, and the two air suction holes 14 are symmetric about the straight line where the support base 2 is located. And a groove 13 connected to each air suction hole 14 is formed on the surface of the second inclined surface 16, so that the air compressor自带 in the laser table can also suck away the air between the groove 13 and the plate body 1, thereby making the suction force between the plate body 1 and the fixture more uniform and powerful. In order to facilitate the formation of the groove 13 during the production of the fixture, the formed groove 13 is set in a stepped shape to form a stepped groove with five steps.
[0031] When the laser cutting machine cuts the surface of the sheet 3, in order to prevent the back of the light guide plate product from being corroded by reflected laser gas, a through groove 15 is formed along the length of the slot 12. When the laser cuts the surface of the sheet 3, the laser gas that penetrates the sheet 3 exits through the through groove 15, thus preventing the back of the light guide plate product formed by the laser cutting machine from being corroded by reflected laser gas. Both the plate body 1 and the support base 2 are made of bakelite. Fixtures made of bakelite have good heat resistance and can be used in high-temperature environments. They are not easily deformed or burned, making them suitable for use in laser cutting environments. In addition, fixtures made of bakelite also have high compressive strength, bending strength, and impact strength, which can withstand large mechanical loads and are not easily broken or shattered. Furthermore, bakelite has good processing performance, making it easy to press into products of various shapes and sizes using molds, and also easy to perform secondary processing through cutting, drilling, grinding, etc.
[0032] The specific implementation principle of this application embodiment is as follows: When it is necessary to use the fixture to assist the laser cutting machine in cutting the plate 3 to form a bevel, the fixture is placed on the laser machine table. Then, the plate 3 to be processed is clamped into the mounting groove 11 of the fixture. The plate 3 abuts against the second inclined surface 16 and the first inclined surface 23 of the support part 21. Both sides of the plate 3 abut against the side walls of the mounting groove 11, so that one end of the plate 3 is clamped in the slot 12, and the other end of the plate 3 abuts against the abutting surface of the abutting part 22. A receiving groove 25 is formed between the support part 21 and the abutting part 22. The bottom of the end abutting against the abutting surface is located in the receiving groove 25, thereby avoiding damage to the end of the plate 3.
[0033] The air compressor built into the laser cutting machine starts working to remove air from the stepped groove and the suction hole 14, creating a negative pressure state between the plate 3 and the fixture, thereby ensuring the plate 3 remains stably positioned on the fixture. Then, the laser cutting machine starts working to cut the surface of the plate 3. During the cutting process, the laser gas that has penetrated the plate 3 exits through the through groove 15, thus preventing the back of the light guide plate product formed by the laser cutting machine from being corroded by the reflected laser gas.
[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, shall be protected by the present invention.
Claims
1. A fixture for machining bevels in a laser cutting machine, characterized in that: The plate (1) includes a plate (1) and a support base (2). The plate (1) has a mounting groove (11) formed on its surface. The support base (2) is located at the center of one end of the mounting groove (11). The support base (2) includes a support part (21) and an abutment part (22). The top surface of the abutment part (22) is higher than the top surface of the support part (21). The top surface of the support part (21) slopes downward from the end near the abutment part (22) to form a first inclined surface (23). A slot (12) is formed at one end of the mounting groove (11) away from the support base (2). The horizontal position of the slot (12) is lower than that of the support base (2). A second inclined surface (16) is formed between the slot (12) and the support base (2) for transition. The slope ratio of the second inclined surface (16) is equal to that of the first inclined surface (23). A groove (13) and several air intake holes (14) are formed on the second inclined surface (16). The groove (13) is connected to each air intake hole (14).
2. The fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: The groove (13) is stepped to form a stepped groove.
3. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: The surface of the abutting part (22) facing the support part (21) is the abutting surface, and the abutting surface is perpendicular to the first inclined surface (23) of the support part (21).
4. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: A receiving groove (25) is formed at the connection between the support part (21) and the abutment part (22).
5. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: A through groove (15) is formed by opening through the groove (12) along its length direction.
6. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: Both the plate (1) and the support base (2) are made of bakelite material.
7. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: The plate (1) has two through-holes (14) formed, and the two through-holes (14) are symmetrical about the line of the support base (2).
8. A fixture for machining bevels in a laser cutting machine according to claim 2, characterized in that: The stepped groove has five steps.
9. A fixture for machining bevels in a laser cutting machine according to claim 1, characterized in that: The slope ratio of the first inclined surface (23) is set to "A" and satisfies 20%. <A<100%。