Heat dissipation substrate surface two-dimensional code burning device

Abstract

The utility model discloses a heat dissipation substrate surface two -dimensional code firing device, including laser mechanism (1) and substrate frock (2), substrate frock (2) is including bottom plate (3), is equipped with main body block (4) on bottom plate (3), and main body block (4) has the positioning groove (5) for placing the substrate, and the irradiation end of laser mechanism (1) corresponds the substrate surface in positioning groove (5) inside, the groove edge of positioning groove (5) evenly sets up multiple positioning post (6), and the both sides of the groove bottom of positioning groove (5) have buffer axle spare (7), and the groove bottom of positioning groove (5) four around is equipped with the protection corner spare (8) of substrate toothed needle protection. The utility model discloses a combination of buffer axle spare and protection corner spare, and the toothed needle of one side of substrate plays the protection effect, and the deformation of toothed needle is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation substrate processing equipment, and in particular to a device for burning QR codes onto the surface of a heat dissipation substrate. Background Technology

[0002] Heat dissipation substrates are core heat dissipation components for electronic components such as chips and power devices. Laser-engraving QR codes on the substrate surface enables production traceability and quality inspection data association. During the engraving process, the substrate needs to be stably placed in a positioning fixture. In the prior art, for example, Chinese utility model patent CN209379334U discloses a universal fixture for applying thermal grease to aluminum substrates, including a fixed base and a cover plate. The fixed base is equipped with a positioning platform assembly capable of fixing and embedding the aluminum substrate, and the size of the positioning platform assembly can be matched to the specifications of the aluminum substrate.

[0003] However, existing positioning fixtures have some shortcomings when applied to the QR code burning scenario on heat dissipation substrates: one side of the heat dissipation substrate has a toothed structure, which is the core part of the substrate to achieve heat dissipation and is relatively fragile. During the QR code burning process, damage such as squeezing and collisions must be avoided. However, current mainstream positioning fixtures, whether they are structures that achieve substrate positioning by positioning and pressing the edge to enclose the area as in the aforementioned patent, or other designs that use positioning posts for positioning, do not have a dedicated protective structure for the toothed structure of the heat dissipation substrate. During the positioning process, the fixture is prone to direct contact with the toothed structure, increasing the risk of damage to the toothed structure. Utility Model Content

[0004] The purpose of this invention is to provide a device for burning QR codes onto the surface of a heat dissipation substrate. This invention uses a combination of a buffer shaft and protective corner pieces to protect the toothed pins on one side of the substrate, preventing deformation of the pins.

[0005] The technical solution of this utility model is: a QR code burning device for heat dissipation substrate surface, including a laser mechanism and a substrate fixture. The substrate fixture includes a base plate, a main block on the base plate, and a positioning groove for placing the substrate on the main block. The irradiation end of the laser mechanism corresponds to the substrate surface in the positioning groove. Multiple positioning posts are evenly arranged on the edge of the positioning groove. Buffer shafts are provided on both sides of the bottom of the positioning groove. Protective corner pieces for substrate tooth protection are provided around the bottom of the positioning groove.

[0006] In the aforementioned heat dissipation substrate surface QR code burning device, the main block is connected to the base plate by screws, and the base plate is provided with multiple threaded holes.

[0007] In the aforementioned heat dissipation substrate surface QR code burning device, the main block has opening slots on both sides that are connected to the positioning slot.

[0008] In the aforementioned heat dissipation substrate surface QR code burning device, the buffer shaft includes a fixed sleeve with a positioning groove, a spring inside the fixed sleeve, and a multi-point support shaft embedded in the fixed sleeve at the upper end of the spring.

[0009] In the aforementioned heat dissipation substrate surface QR code burning device, the multi-point support shaft includes a shaft column connected to the upper end of the spring and embedded in the fixed sleeve. The upper end of the shaft column has a horizontal plate, and multiple fixed shafts are evenly arranged on the horizontal plate.

[0010] In the aforementioned heat dissipation substrate surface QR code burning device, the protective corner member includes a column set in the hole in the positioning groove. The column is set in the hole by a limiting structure. The upper end of the column has a square plate, and a right angle plate is provided on the square plate. The right angle plate is in contact with the right angle side of the protrusion formed by the toothed needle on the substrate.

[0011] In the aforementioned heat dissipation substrate surface QR code burning device, the two sides of the column have limiting strips that match the holes in the positioning groove.

[0012] In the aforementioned heat dissipation substrate surface QR code burning device, the groove edge of the opening groove has a transition arc.

[0013] Compared with the prior art, the present invention has the following advantages: 1. In this utility model, the heat dissipation substrate is placed in the positioning groove. Multiple positioning posts are set along the edge of the positioning groove to limit the heat dissipation substrate. During the process of the heat dissipation substrate falling into the positioning groove, the buffer shaft can adaptively buffer the pressure when the substrate is placed, so as to realize the stable placement of the substrate. There are multiple toothed pins on one side of the substrate, which are generally arranged in a rectangular shape. The four corners of the toothed pins will fall into the protective corner pieces. At this time, there is a certain distance between the toothed pins and the bottom of the positioning groove, which not only achieves auxiliary positioning, but also avoids the toothed pins from contacting the bottom of the groove, effectively protecting the toothed pin structure of the heat dissipation core of the substrate.

[0014] 2. The main body block is connected to the base plate by screws, and the base plate has multiple threaded holes. The installation position of the main body block on the base plate can be adjusted according to the size of different specifications of the substrate, or the main body block can be replaced with one that fits different positioning groove sizes without the need to replace the entire tooling.

[0015] 3. The design of the opening slots on both sides of the main block, which are connected to the positioning slots, provides ample operating space for the placement and removal of the substrate. Operators can directly and conveniently pick up the substrate through the opening slots without the need for tools to pry it out, thus reducing the number of operating steps. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning groove; Figure 3 This is a schematic diagram of the protective corner piece; Figure 4 This is a schematic diagram of a buffer shaft component; Figure 5 This is a schematic diagram showing the fit between the column and the square panel. Figure 6 A diagram showing the heat dissipation substrate placed in the positioning slot during use. Figure 7 This is a schematic diagram showing the fit between the protective corner piece and the substrate.

[0017] The markings in the attached diagram are as follows: 1-Laser mechanism, 2-Base plate tooling, 3-Base plate, 4-Main block, 5-Positioning groove, 6-Positioning post, 7-Buffer shaft, 8-Protective corner piece, 9-Threaded hole, 10-Opening groove, 11-Fixing sleeve, 12-Spring, 13-Multi-point support shaft, 14-Shaft post, 15-Horizontal piece, 16-Fixed shaft, 17-Column, 18-Square plate, 19-Right angle plate, 20-Limiting strip, 21-Transition arc, 22-Disc body, 23-Limiting groove. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A device for burning QR codes onto the surface of a heat dissipation substrate, comprising a laser mechanism 1 and a substrate fixture 2, as shown in the attached diagram. Figure 1 As shown, the laser mechanism mainly consists of a support and a laser. The support has an adjustment structure to adjust the position of the laser, ensuring that the laser emitted by the laser can accurately irradiate the substrate surface. An external production traceability system or a host computer sends QR code data (including encoding information, size parameters, and etching depth requirements) to the control unit of the laser mechanism. The main control module of the control unit parses the data into executable instructions, including parameters such as laser output power, scanning path, and firing speed, and matches them with preset parameters corresponding to the current heat dissipation substrate material. The laser beam enters the focusing assembly, and QR code etching on the substrate surface is achieved through precise focusing. The substrate fixture 2 includes a base plate 3, on which a main body block 4 is mounted. The main body block 4 is connected to the base plate 3 by screws, and the base plate 3 has multiple threaded holes 9. The mounting position of the main body block on the base plate can be adjusted according to the size of different substrates, or a main body block adapted to different positioning groove sizes can be replaced without replacing the entire fixture. The main body block 4 has positioning grooves 5 for placing the substrate, as shown in the attached figure. Figure 2As shown, the main body block 4 has openings 10 on both sides that connect to the positioning groove 5. This design provides ample operating space for placing and removing the substrate, allowing operators to easily retrieve it directly without the need for tools, thus reducing operational steps. The edges of the openings 10 have a transition arc 21, which prevents hand injuries during operation, improving safety and comfort. The irradiation end of the laser mechanism 1 corresponds to the substrate surface within the positioning groove 5. Multiple positioning posts 6 are evenly arranged along the edges of the positioning groove 5, providing a basic placement reference for the substrate. Figure 6 As shown, multiple positioning posts evenly distributed along the groove edge can limit the substrate from the periphery to prevent the substrate from shifting laterally; the bottom of the positioning groove 5 has buffer shafts 7 on both sides, and the bottom of the positioning groove 5 is provided with protective corner pieces 8 for substrate tooth protection.

[0020] The buffer shaft 7 includes a fixing sleeve 11 disposed within a positioning groove 5, as shown in the attached figure. Figure 4 As shown, a spring 12 is provided inside the fixed sleeve 11, and the upper end of the spring 12 is connected to a multi-point support shaft 13 embedded in the fixed sleeve 11. The multi-point support shaft 13 includes a shaft post 14 connected to the upper end of the spring 12 and embedded in the fixed sleeve 11. The upper end of the shaft post 14 has a horizontal plate 15, and multiple fixed shafts 16 are evenly installed on the horizontal plate 15. When the substrate is placed in the positioning groove, the lower surface of the substrate contacts the end of the fixed shaft. Under the pressure of the substrate, the shaft post will move into the fixed sleeve and compress the spring. The spring will buffer the pressure of the substrate. The multi-point support method can realize the stable placement of the substrate. There are two sets of buffer shafts, which are set on both sides of the positioning groove and correspond to the inner area of ​​the opening groove. In order to realize the stability of the shaft post moving in the fixed sleeve, the bottom end of the shaft post has a disc 22, and the inner wall of the fixed sleeve has a limiting groove 23. The disc is set in the limiting groove to limit the longitudinal movement of the shaft post, thereby realizing the movement guidance and limiting of the entire multi-point support shaft.

[0021] The protective corner piece 8 includes a column 17 disposed in the inner hole of the positioning groove 5, as shown in the attached figure. Figure 3 As shown, the column 17 is positioned in the hole via a limiting structure. The upper end of the column 17 has a square plate 18, on which a right-angle plate 19 is mounted. The column and the square plate are connected by a snap-fit ​​mechanism, as shown in the attached diagram. Figure 5 As shown, the square plate and the right-angle plate are fixed. The components formed by the square plate and the right-angle plate are available in various models. Depending on the size of the toothed area on the base plate, the corresponding model of component is replaced at the top of the column. The difference between different specifications lies in the position of the right-angle plate on the square plate, thus adapting to the dimensions of the toothed area in both length and width directions, improving usability. The right-angle plate 19 fits against the right-angled edge of the protrusion formed by the toothed area on the base plate, as shown in the attached figure. Figure 7As shown, the substrate has multiple toothed pins on one side, arranged in a rectangular shape. The four corners of the pins fall within the protective corner pieces. At this point, there is a certain distance between the pins and the bottom of the positioning groove, which both assists in positioning and prevents the pins from contacting the groove bottom, effectively protecting the pin structure of the substrate's heat dissipation core. The two sides of the pillar 17 have limiting strips 20 that fit into the holes of the positioning groove 5. The pillar 17 is positioned in the holes of the positioning groove via the limiting structure, which mainly refers to the limiting strips. There are four sets of protective corner pieces, corresponding to the rectangle formed by the pins on one side of the substrate. The limiting strips prevent the pillar from rotating, and the square plate can be stably connected to the pillar, allowing the right-angled plate at the top of the pillar to be stably positioned. This ensures that the rectangular space formed by the four protective corner pieces always corresponds to the pins on one side of the substrate. To prevent scratches on the substrate surface, the positioning posts, buffer shafts, and protective corner pieces are all made of plastic.

[0022] The working principle of this utility model is as follows: The substrate is placed into the positioning groove 5. Multiple positioning posts 6 evenly distributed along the edge of the positioning groove form a lateral limit from the periphery of the substrate, preventing the substrate from shifting laterally and ensuring that the substrate initially falls into the preset area of ​​the positioning groove. During the descent of the substrate, its lower surface first contacts the multi-point support shaft 13 of the buffer shaft 7. Under the action of the substrate's own gravity, the shaft post 14 moves into the fixing sleeve 11, compressing the spring 12 inside the fixing sleeve. The spring adapts to the pressure of the substrate through elastic deformation, ensuring that the substrate is placed stably. After the substrate is completely placed, the four corners of its toothed protrusion fall into the four sets of protective corner pieces 8. The right-angle plate 19 of the protective corner piece fits tightly with the right-angle side of the toothed protrusion. The supporting effect of the right-angle plate keeps the toothed pin and the bottom of the positioning groove 5 at a certain distance, avoiding direct contact between the toothed pin and the tooling.

Claims

1. A device for burning QR codes onto the surface of a heat dissipation substrate, comprising a laser mechanism (1) and a substrate fixture (2), characterized in that: The substrate fixture (2) includes a base plate (3), a main block (4) is provided on the base plate (3), and a positioning groove (5) for placing the substrate is provided on the main block (4). The irradiation end of the laser mechanism (1) corresponds to the substrate surface in the positioning groove (5). Multiple positioning posts (6) are evenly arranged on the edge of the positioning groove (5). Buffer shafts (7) are provided on both sides of the bottom of the positioning groove (5). Protective corner pieces (8) for substrate tooth protection are provided around the bottom of the positioning groove (5).

2. The device for burning QR codes onto the surface of a heat dissipation substrate according to claim 1, characterized in that: The main block (4) is connected to the base plate (3) by screws, and the base plate (3) is provided with multiple threaded holes (9).

3. The device for burning QR codes onto the surface of a heat dissipation substrate according to claim 1, characterized in that: The main block (4) has opening slots (10) on both sides and connected to the positioning slot (5).

4. The device for burning QR codes onto the surface of a heat dissipation substrate according to claim 1, characterized in that: The buffer shaft (7) includes a fixed sleeve (11) with a positioning groove (5), a spring (12) is provided in the fixed sleeve (11), and the upper end of the spring (12) is connected to a multi-point support shaft (13) embedded in the fixed sleeve (11).

5. The apparatus for burning QR codes onto the surface of a heat dissipation substrate according to claim 4, characterized in that: The multi-point support shaft (13) includes a shaft column (14) connected to the upper end of the spring (12) and embedded in the fixed sleeve (11). The upper end of the shaft column (14) has a horizontal piece (15), and multiple fixed shafts (16) are evenly arranged on the horizontal piece (15).

6. The apparatus for burning QR codes onto the surface of a heat dissipation substrate according to claim 1, characterized in that: The protective corner piece (8) includes a column (17) set in the hole of the positioning groove (5). The column (17) is set in the hole by a limiting structure. The upper end of the column (17) has a square plate (18). A right angle plate (19) is provided on the square plate (18). The right angle plate (19) is in contact with the right angle side of the protrusion formed by the toothed needle on the substrate.

7. The apparatus for burning QR codes onto the surface of a heat dissipation substrate according to claim 6, characterized in that: The column (17) has limiting strips (20) on both sides that match the inner hole of the positioning groove (5).

8. The apparatus for burning QR codes onto the surface of a heat dissipation substrate according to claim 3, characterized in that: The opening groove (10) has a transition arc (21) on its groove edge.

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