Accurate positioning structure for laser etching process

Abstract

The utility model relates to the technical field of accurate positioning, and discloses an accurate positioning structure for a laser etching process, a pipe cavity is arranged in a box body, a control pipeline is fixedly arranged from the bottom of the pipe cavity to the outside of the box body, the box body is connected with an external cylinder through the control pipeline, and the control pipeline is connected with the external cylinder. A suction cavity is formed in the position, located above the pipe cavity, in the box body, preliminary fixing of an object is achieved by arranging a control pipeline, the pipe cavity, the suction cavity and other structures, an external air cylinder is connected with the control pipeline, the object needing laser etching is placed on the surface of a groove, the external air cylinder is started, air in the pipe cavity and the suction cavity is extracted, and then laser etching is conducted. And negative pressure is generated in the column grooves and the flat grooves, the flat grooves and the through grooves firmly adsorb articles to the surfaces of the grooves, the positions of the articles are prevented from shifting, and the effect of preliminarily fixing the articles is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of precise positioning, in particular to a precise positioning structure used in laser engraving technology. Background Art

[0002] Laser engraving, also known as laser engraving or laser marking, is a process of surface treatment based on optical principles. Laser engraving is also a surface treatment process, similar to screen printing and pad printing, both of which are printing words or patterns on products. Different processes have different prices.

[0003] When performing laser engraving operations, laser engraving jigs are usually required. During the laser engraving production and processing process, the processed products need to be accurately positioned. The existing positioning structure has the problem of inaccurate positioning when used, which affects the accuracy of laser engraving. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a precise positioning structure for laser engraving technology, which has the advantages of precise positioning and firm clamping, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a precise positioning structure for laser engraving process, comprising a box body, a tube cavity is opened inside the box body, a control pipeline is fixedly installed from the bottom of the tube cavity to the outside of the box body, the box body is connected to the external cylinder through the control pipeline, a suction cavity is opened inside the box body above the tube cavity, an arc groove is opened between the suction cavity and the tube cavity, a one-way valve is fixedly installed inside the arc groove, and the one-way valve is set so that the suction cavity is connected to the tube cavity and the tube cavity is closed to the suction cavity.

[0006] Preferably, an inclined groove is provided on the top of the box body, bevels are provided on four sides of the inclined groove, a groove is provided in the middle of the inclined groove, suction holes are evenly provided in a circular shape between the surface of the groove and the top wall of the suction chamber, a block groove is provided on the bottom wall of the inclined groove and is located between the inclined groove and the groove, a flat groove is provided in the middle of the groove, and a through groove is evenly provided in a circular shape between the surface of the flat groove and the middle of the top wall of the suction chamber.

[0007] Preferably, column grooves are arranged in an array around the top of the tube cavity and between the block grooves, and two column grooves are arranged on each side, sliding columns are slidably sleeved inside the column grooves, and the tops of the two sliding columns on one side are fixedly connected with fixed blocks, and a cover plate is fixedly installed on the top of the fixed block, and the shape of the cover plate is trapezoidal, and the area of ​​the cover plate is larger than that of the fixed block.

[0008] Preferably, the end of the column groove close to the block groove has a smaller diameter, the diameter of the sliding column is the same as the diameter of the end of the column groove, the end of the sliding column located in the column groove is adapted to the inner diameter of the column groove, and a sealing ring is fixedly sleeved between the end of the sliding column and the column groove.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The precise positioning structure used for laser engraving technology realizes the preliminary fixation of objects by setting up control pipes, tube cavities, suction cavities and other structures. The external cylinder is connected to the control pipe, and the object to be laser engraved is placed on the surface of the groove. The external cylinder is started to extract the air inside the tube cavity and the suction cavity, so that negative pressure is generated inside the column groove and the flat groove. The flat groove and the through groove firmly adsorb the object on the surface of the groove to avoid the position of the object from shifting, which has the effect of initially fixing the object.

[0011] 2. The precise positioning structure used for laser engraving realizes secondary fixation of the object by setting structures such as sliding columns, cover plates, and one-way valves. The sliding columns slide in the direction of the tube cavity so that the cover plates are pressed on the upper surface of the object to realize secondary fixation of the object position. The external cylinder continuously extracts to firmly fix the position of the object, which can prevent the object from moving during the laser engraving process. When the laser engraving is completed, the working direction of the external cylinder is changed to pump gas into the interior of the box. Due to the one-way valve, the gas cannot be pumped into the interior of the suction cavity, but can only be pumped into the interior of the tube cavity, so that the sliding columns drive the cover plates to slide outward, so that it has limited contact with the position of the object, which has the effect of secondary fixation and quick release. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 3 It is a sectional view of the overall structure of the utility model;

[0015] Figure 4 It is a sectional view of the overall structure of the utility model.

[0016] In the figure: 1. box body; 11. inclined groove; 12. groove; 13. block groove; 14. flat groove; 2. tube cavity; 21. column groove; 22. sliding column; 23. fixed block; 24. cover plate; 3. control pipeline; 4. suction cavity; 41. suction hole; 5. one-way valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0018] See also Figure 1-Figure 4 A precise positioning structure for laser engraving process, including a box body 1, a slanted groove 11 is opened on the top of the box body 1, and bevels are set on the four sides of the slanted groove 11, a groove 12 is opened in the middle of the slanted groove 11, a block groove 13 is opened on the bottom wall of the slanted groove 11 and is located between the slanted groove 11 and the groove 12, a flat groove 14 is opened in the middle of the groove 12, a tube cavity 2 is opened inside the box body 1, a control pipe 3 is fixedly installed from the bottom of the tube cavity 2 to the outside of the box body 1, the box body 1 is connected to the external cylinder through the control pipe 3, and column grooves 21 are arranged in an array around the top of the tube cavity 2 and between the block groove 13.

[0019] See also Figure 1-Figure 4 The end of the column groove 21 close to the block groove 13 has a smaller diameter, the diameter of the sliding column 22 is the same as the diameter of the end of the column groove 21, the end of the sliding column 22 located in the column groove 21 is adapted to the inner diameter of the column groove 21, a sealing ring is fixedly sleeved between the end of the sliding column 22 and the column groove 21, and two column grooves 21 are opened on each side, and the sliding column 22 is slidably sleeved inside the column groove 21, and the tops of the two sliding columns 22 on one side are fixedly connected with a fixed block 23, and a cover plate 24 is fixedly installed on the top of the fixed block 23. The shape of the cover plate 24 is trapezoidal, and the area of ​​the cover plate 24 is larger than that of the fixed block 23.

[0020] See also Figure 1-Figure 4 The external cylinder is connected to the control pipe 3, and the object to be laser engraved is placed on the surface of the groove 12. The external cylinder is started to extract the air inside the tube cavity 2 and the suction cavity 4, so that negative pressure is generated inside the column groove 21 and the flat groove 14. The flat groove 14 and the through groove firmly adsorb the object on the surface of the groove 12 to prevent the position of the object from shifting. The sliding column 22 slides toward the tube cavity 2 to press the cover plate 24 on the upper surface of the object. The external cylinder continues to extract to firmly fix the position of the object. The subsequent laser engraving of the object can prevent the object from moving during the laser engraving process.

[0021] See also Figure 1-Figure 4 A suction chamber 4 is provided inside the box body 1 above the tube chamber 2, an arc groove is provided between the suction chamber 4 and the tube chamber 2, a one-way valve 5 is fixedly installed inside the arc groove, suction holes 41 are uniformly provided in a circular ring shape between the surface of the groove 12 and the top wall of the suction chamber 4, a through groove is uniformly provided in a circular ring shape between the surface of the flat groove 14 and the middle of the top wall of the suction chamber 4, and the one-way valve 5 is set so that the suction chamber 4 is connected to the tube chamber 2 and the tube chamber 2 is closed to the suction chamber 4;

[0022] When the laser engraving is completed, the working direction of the external cylinder is changed to make the external cylinder pump gas into the interior of the box body 1. Due to the one-way valve 5, the gas cannot be pumped into the interior of the suction chamber 4, and can only be pumped into the interior of the tube chamber 2, so that the slide column 22 drives the cover plate 24 to slide outward, so that it can limit the contact with the position of the object. Since the object is placed on the surface of the groove 12, it is not a perfect fit, so the flat groove 14 and the inside of the through hole are in negative pressure contact, and the object is taken out, completing the laser engraving work. According to the above steps, the subsequent objects are laser engraved.

[0023] Working principle: The external cylinder is connected to the control pipe 3, and the object to be laser engraved is placed on the surface of the groove 12. The external cylinder is started to extract the air inside the tube cavity 2 and the suction cavity 4, so that negative pressure is generated inside the column groove 21 and the flat groove 14. The flat groove 14 and the through groove firmly adsorb the object on the surface of the groove 12 to prevent the object from shifting. The sliding column 22 slides toward the tube cavity 2 to press the cover plate 24 on the upper surface of the object. The external cylinder continues to extract, so that the position of the object is firmly fixed, which can prevent the object from being laser engraved. Move during the laser engraving process. When the laser engraving is completed, change the working direction of the external cylinder to pump gas into the interior of the box body 1. Due to the one-way valve 5, the gas cannot be pumped into the interior of the suction chamber 4, and can only be pumped into the interior of the tube cavity 2, so that the slide column 22 drives the cover plate 24 to slide outward, so that it can limit the contact with the position of the object. Since the object is placed on the surface of the groove 12, it is not a perfect fit, so the flat groove 14 and the internal negative pressure of the through hole are in contact, and the object is taken out, completing the overall work. According to the above steps, the subsequent objects are laser engraved.

Claims

1. A precise positioning structure for laser engraving, comprising a box (1), characterized in that: The box body (1) has a tube cavity (2) formed inside, a control pipe (3) is fixedly installed from the bottom of the tube cavity (2) to the outside of the box body (1), the box body (1) is connected to an external cylinder via the control pipe (3), a suction cavity (4) is formed inside the box body (1) above the tube cavity (2), an arc groove is formed between the suction cavity (4) and the tube cavity (2), a one-way valve (5) is fixedly installed inside the arc groove, and the one-way valve (5) is set so that the suction cavity (4) is connected to the tube cavity (2) and the tube cavity (2) is closed to the suction cavity (4).

2. The precise positioning structure for laser engraving according to claim 1, characterized in that: The box body (1) is provided with an inclined groove (11) on the top, and the inclined groove (11) has bevels on four sides. A groove (12) is provided in the middle of the inclined groove (11), and suction holes (41) are evenly provided in a circular ring shape between the surface of the groove (12) and the top wall of the suction chamber (4). A block groove (13) is provided on the bottom wall of the inclined groove (11) and is located between the inclined groove (11) and the groove (12). A flat groove (14) is provided in the middle of the groove (12), and a through groove is evenly provided in a circular ring shape between the surface of the flat groove (14) and the middle of the top wall of the suction chamber (4).

3. The precise positioning structure for laser engraving according to claim 2, characterized in that: Column grooves (21) are arranged in an array around the top of the tube cavity (2) and between the block groove (13), and two column grooves (21) are arranged on each side. Sliding columns (22) are slidably sleeved inside the column grooves (21). The tops of the two sliding columns (22) on one side are fixedly connected with fixed blocks (23). A cover plate (24) is fixedly installed on the top of the fixed block (23). The shape of the cover plate (24) is trapezoidal, and the area of ​​the cover plate (24) is larger than that of the fixed block (23).

4. The precise positioning structure for laser engraving according to claim 3, characterized in that: The end of the column groove (21) close to the block groove (13) has a smaller diameter, the diameter of the sliding column (22) is the same as the diameter of the end of the column groove (21), the end of the sliding column (22) located inside the column groove (21) is adapted to the inner diameter of the column groove (21), and a sealing ring is fixedly sleeved between the end of the sliding column (22) and the column groove (21).

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