Glue brushing device for DBC (Direct Bonding Copper) substrate production
By designing a glue-brushing device consisting of components such as a clamping plate, a buffer pad, an electric push rod, and a roller, the unevenness problem caused by displacement when manually brushing glue on the DBC substrate is solved, and the glue is evenly applied and the surface is cleaned, making the operation convenient.
Patent Information
- Application Number
- CN202422545300.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The traditional manual glue application method may cause the DBC substrate to shift, resulting in uneven glue application.
A glue-brushing device was designed, which included a clamping plate, a servo motor, a pulley assembly, a buffer pad, an electric push rod, and a roller. The clamping plate fixed the DBC substrate, the buffer pad prevented it from being clamped, the electric push rod adjusted the distance and position of the roller, the roller brushed the glue, and a vacuum cleaner cleaned the dust to ensure that the glue was evenly applied.
Effectively prevent DBC substrate displacement, ensure uniform glue application, adapt to substrates of different thicknesses, clean surface dust, and facilitate operation.
Smart Images
Figure CN223324919U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a glue brushing device, in particular to a glue brushing device for producing a DBC substrate. Background Art
[0002] With the rapid development of power electronics, LED lighting, new energy vehicles and other fields, the demand for substrate materials with high thermal conductivity, good electrical insulation performance and mechanical strength is increasing. Direct Bonded Copper (DBC) substrates have been widely used in these fields due to their excellent thermal conductivity and electrical isolation properties. DBC substrates are made by directly bonding a ceramic matrix (such as alumina or aluminum nitride) and copper foil through a chemical reaction at high temperature. This structure not only provides good heat dissipation performance, but also has high mechanical stability and reliability.
[0003] In the actual application of DBC substrates, it is usually necessary to coat a layer of specific adhesive on their surface to fix various components (such as semiconductor chips, resistors, capacitors, etc.). The traditional manual glue brushing method is to use appropriate solvents or detergents to thoroughly clean the surface of the DBC substrate to remove any impurities such as oil, dust, etc., and select suitable thermal conductive glue or insulating glue according to application requirements. Common ones are epoxy resin, silicone, etc. The glue can be manually applied using tools such as brushes and scrapers. However, during the application process, since the DBC substrate is not fixed, the DBC substrate may be displaced, resulting in uneven glue application.
[0004] Therefore, we need to design a glue brushing device for producing DBC substrates. Utility Model Content
[0005] In order to overcome the disadvantage that the DBC substrate may be displaced and the glue is unevenly applied when the DBC substrate is brushed with glue by hand in the traditional way, the technical problem is to provide a DBC substrate production glue brushing device.
[0006] The technical solution is as follows: A DBC substrate production glue brushing device includes a workbench, a guide rod, a clamping plate, a bidirectional threaded rod, a servo motor and a pulley group. The bottom of the workbench is fixedly connected to the guide rod, and the clamping plates are symmetrically slidably connected to the guide rod. The upper parts of the clamping plates are in contact with the workbench, and the lower parts of the two clamping plates are threadedly connected with a bidirectional threaded rod. The lower part of the workbench is fixedly connected to the servo motor, and the front end of the bidirectional threaded rod is fixedly connected to the output shaft of the servo motor with a pulley group.
[0007] Preferably, a buffer pad is further included, and the buffer pad is fixedly connected to the sides of the two clamping plates that are close to each other.
[0008] Preferably, it also includes a first support plate, a first electric push rod, a first telescopic rod, a lifting plate, a second support plate, a second electric push rod, a second telescopic rod, a limit rod and a roller, the rear side of the rear clamping plate is fixedly connected to the first support plate, the upper part of the first support plate is fixedly connected to the first electric push rod, the first electric push rod piston rod is fixedly connected to the first telescopic rod, the bottom of the first telescopic rod is fixedly connected to the lifting plate, the front side of the lifting plate is slidably connected to the rear clamping plate, the top of the lifting plate is symmetrically connected to the second support plate, the two second support plates are fixedly connected on one side away from each other, the second electric push rod piston rod is fixedly connected to the second telescopic rod, a limit rod is connected between the front sides of the two second telescopic rods, the two ends of the limit rod are slidably connected to the lower part of the lifting plate, the limit rod is rotatably connected to the roller, and the roller is located in front of the buffer pad.
[0009] Preferably, slideways are further included, the upper portion of the workbench is symmetrically and fixedly connected to the slideways, and the lower portion of the limiting rod is slidably connected to the inner sides of the two slideways.
[0010] Preferably, it also includes a support block, a storage box, a vacuum cleaner and a pulling box. The front side of the front clamping plate is fixedly connected to the support block, the top of the support block is fixedly connected to the storage box, the top of the storage box is fixedly connected to the vacuum cleaner, the lower part of the vacuum cleaner is made of soft material and can be retracted and stretched, and the pulling box is slidably connected to the storage box.
[0011] Preferably, anti-slip pads are also included, and four anti-slip pads are fixedly connected to the bottom of the workbench.
[0012] The beneficial effects of the utility model are: 1. By setting a clamping plate and starting the first electric push rod, the pulley group drives the bidirectional threaded rod to rotate counterclockwise, and then drives the two clamping plates to approach each other along the guide rod, thereby clamping the DBC substrate, solving the problem that when the traditional manual glue is applied to the DBC substrate, the DBC substrate may be displaced, resulting in uneven glue application.
[0013] 2. By setting a buffer pad, the buffer pad plays a buffering role when it contacts the DBC substrate, preventing the clamping plate from damaging the DBC substrate.
[0014] 3. By setting the first electric push rod, the second electric push rod and the roller, starting the first electric push rod can adjust the vertical distance between the roller and the surface of the DBC substrate, so as to adapt to DBC substrates of different thicknesses. Starting the second electric push rod can make the roller roll back and forth on the surface of the DBC substrate, so as to apply glue to it.
[0015] 4. By setting up a vacuum cleaner and a pulling box, the dust on the surface of the DBC substrate can be cleaned, making the next step more convenient.
[0016] 5. By setting the slide, the limit rod can slide on the two slides, so that the limit rod moves more smoothly, and then the roller rolls more smoothly.
[0017] 6. By setting up anti-slip pads, the device can be effectively prevented from moving during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0019] Figure 2 It is a three-dimensional structural diagram of the workbench, clamping plate and pulley assembly of the utility model.
[0020] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the guide rod, clamping plate and bidirectional threaded rod of the utility model.
[0021] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the first support plate, the first electric push rod and the first telescopic rod of the present invention.
[0022] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the first telescopic rod, the lifting plate and the second support plate of the present invention.
[0023] Explanation of the accompanying drawings: 1_workbench, 2_guide rod, 3_clamping plate, 4_bidirectional threaded rod, 5_servo motor, 6_pulley group, 7_buffer pad, 8_first support plate, 9_first electric push rod, 10_first telescopic rod, 11_lifting plate, 12_second support plate, 13_second electric push rod, 1301_second telescopic rod, 14_limiting rod, 15_roller, 16_slide, 17_support block, 18_storage box, 19_vacuum cleaner, 20_pulling box, 21_anti-slip mat. DETAILED DESCRIPTION
[0024] The following description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.
[0025] Embodiment: A DBC substrate production glue brushing device, see Figure 1-5As shown, it includes a workbench 1, a guide rod 2, a clamping plate 3, a bidirectional threaded rod 4, a servo motor 5 and a pulley group 6. The guide rod 2 is fixedly connected to the left side of the bottom of the workbench 1, and the clamping plates 3 are symmetrically slidably connected to the guide rod 2. The upper parts of the clamping plates 3 are in contact with the workbench 1, and the bidirectional threaded rod 4 is threadedly connected between the lower right parts of the two clamping plates 3. The servo motor 5 is connected to the servo motor 5 by bolts at the lower front part of the workbench 1. The front end of the bidirectional threaded rod 4 is fixedly connected to the pulley group 6 on the output shaft of the servo motor 5. When the first electric push rod 9 is started, the pulley group 6 drives the bidirectional threaded rod 4 to rotate counterclockwise when it rotates counterclockwise, and then drives the two clamping plates 3 to approach each other along the guide rod 2, thereby clamping the DBC substrate to prevent the DBC substrate from being displaced when the glue is applied to the DBC substrate, resulting in uneven glue application. It also includes a buffer pad 7, and the buffer pad 7 is fixedly connected to the side where the two clamping plates 3 are close to each other. The buffer pad 7 plays a buffering role when it contacts the DBC substrate to prevent the clamping plate 3 from damaging the DBC substrate.
[0026] See Figure 1 、 Figure 4 and Figure 5 As shown, it also includes a first support plate 8, a first electric push rod 9, a first telescopic rod 10, a lifting plate 11, a second support plate 12, a second electric push rod 13, a second telescopic rod 1301, a limit rod 14 and a roller 15. The first support plate 8 is welded to the rear side of the rear clamping plate 3. The upper part of the first support plate 8 is connected to the first electric push rod 9 by bolts. The first telescopic rod 10 is fixedly connected to the piston rod of the first electric push rod 9. The bottom of the first telescopic rod 10 is fixedly connected to the lifting plate 11. The front side of the lifting plate 11 is slidably connected to the rear clamping plate 3. The top of the lifting plate 11 is symmetrically connected to the second support plate 12. The two second support plates 12 are mutually The away side is connected with a second electric push rod 13 by bolts, and the piston rod of the second electric push rod 13 is fixedly connected with a second telescopic rod 1301. A limit rod 14 is connected between the front sides of the two second telescopic rods 1301. The two ends of the limit rod 14 are slidably connected to the lower part of the lifting plate 11. A roller 15 is rotatably connected to the limit rod 14. The roller 15 is located on the front side of the buffer pad 7. Starting the first electric push rod 9 can adjust the vertical distance between the roller 15 and the surface of the DBC substrate, so as to adapt to DBC substrates of different thicknesses. Starting the second electric push rod 13 can make the roller 15 roll back and forth on the surface of the DBC substrate, so as to apply glue to it.
[0027] See Figure 1 、 Figure 4 and Figure 5 As shown, it also includes a slide 16. The upper part of the workbench 1 is symmetrically fixedly connected with the slide 16. The lower part of the limit rod 14 is slidably connected to the inner side of the two slides 16. The limit rod 14 can slide on the two slides 16, so that the limit rod 14 moves more smoothly, and then the roller 15 rolls more smoothly.
[0028] See Figure 1 As shown, it also includes a support block 17, a storage box 18, a vacuum cleaner 19 and a pulling box 20. The support block 17 is welded to the front side of the front clamping plate 3, and the top of the support block 17 is fixedly connected to the storage box 18. The top of the storage box 18 is fixedly connected to the vacuum cleaner 19. The lower part of the vacuum cleaner 19 is made of soft material and can be retracted and stretched. It can clean the dust on the surface of the DBC substrate and make the next step of operation more convenient. The front side of the storage box 18 is slidably connected to the pulling box 20.
[0029] See Figure 1 As shown, the workbench 1 also includes anti-slip pads 21. Four anti-slip pads 21 are fixedly connected to the bottom of the workbench 1 to effectively prevent the device from moving during operation.
[0030] When it is necessary to brush glue on the DBC substrate, first place the device horizontally on the ground. Since four anti-slip pads 21 are fixedly connected to the bottom of the workbench 1, the device can be effectively prevented from moving during operation. Then place the DBC substrate on the top of the workbench 1, and then start the first electric push rod 9. The output shaft of the first electric push rod 9 rotates counterclockwise, thereby driving the pulley group 6 to rotate counterclockwise. When the pulley group 6 rotates counterclockwise, it drives the bidirectional threaded rod 4 to rotate counterclockwise, and then drives the two clamping plates 3 to approach each other along the guide rod 2, thereby clamping the DBC substrate to prevent the DBC substrate from being displaced when brushing glue, resulting in uneven glue application. Then close the first electric push rod 9. At this time, the buffer pad 7 contacts the DBC substrate, thereby playing a buffering role to prevent the clamping plate 3 from damaging the DBC substrate.
[0031] When the DBC substrate needs to be cleaned, first hold the lower part of the vacuum cleaner 19 with your hand, adjust the orientation of the vacuum cleaner 19, then aim the vacuum cleaner 19 at the DBC substrate and start the vacuum cleaner 19 to suck the dust on the DBC substrate into the storage box 18 and then drop it into the pulling box 20. When the surface of the DBC substrate is cleaned, turn off the vacuum cleaner 19.
[0032] Then apply glue to the surface of the roller 15. When the vertical distance between the roller 15 and the surface of the DBC substrate needs to be adjusted, the first electric push rod 9 is started, the piston rod of the first electric push rod 9 is extended, thereby driving the first telescopic rod 10 to extend, and then driving the lifting plate 11 to move downward, thereby driving the limit rod 14 and the roller 15 to move downward, so as to adapt to DBC substrates of different thicknesses. When the roller 15 contacts the surface of the DBC substrate, the first electric push rod 9 is closed, and then the two second electric push rods 13 are started. The piston rods of the second electric push rods 13 are all extended, thereby causing the second telescopic rod 1301 to be extended, thereby driving the two sides of the limit rod 14 to move forward along the two slides 16, so that the roller 15 rolls forward against the surface of the DBC substrate, so that the limit rod 1 4 moves more smoothly, thereby making the roller 15 roll more smoothly, so that the glue is smeared on the surface of the DBC substrate. When the roller 15 rolls to the front, the two second electric push rods 13 are started again, so that the piston rods of the second electric push rods 13 are shortened, thereby shortening the second telescopic rods 1301, thereby driving the limit rod 14 and the roller 15 to move backward, so that the roller 15 rolls backward along the surface of the DBC substrate. Repeating the above operation can make the roller 15 roll back and forth along the surface of the DBC substrate, so that the glue is evenly smeared on the surface of the DBC substrate. When the DBC substrate needs to be removed after the glue is applied, the above operation is reversed, so that the two clamping plates 3 move away from each other, release the DBC substrate after the glue is applied, and then the DBC substrate can be removed.
[0033] When the device is used many times, a lot of dust will accumulate in the pull box 20. At this time, the pull box 20 can be pulled out by hand, the dust in the pull box 20 is poured out and cleaned, and then the pull box 20 is reset.
[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A glue brushing device for producing DBC substrates, characterized in that: The invention comprises a workbench (1), a guide rod (2), a clamping plate (3), a bidirectional threaded rod (4), a servo motor (5) and a pulley group (6). The bottom of the workbench (1) is fixedly connected with the guide rod (2), the guide rod (2) is symmetrically slidably connected with the clamping plates (3), the upper parts of the clamping plates (3) are in contact with the workbench (1), the lower parts of the two clamping plates (3) are threadedly connected with the bidirectional threaded rod (4), the lower part of the workbench (1) is fixedly connected with the servo motor (5), and the front end of the bidirectional threaded rod (4) is fixedly connected to the output shaft of the servo motor (5) with the pulley group (6).
2. A DBC substrate production glue brushing device according to claim 1, characterized in that: It also includes a buffer pad (7), and the buffer pad (7) is fixedly connected to the sides of the two clamping plates (3) that are close to each other.
3. A DBC substrate production glue brushing device according to claim 2, characterized in that: The invention also includes a first support plate (8), a first electric push rod (9), a first telescopic rod (10), a lifting plate (11), a second support plate (12), a second electric push rod (13), a second telescopic rod (1301), a limiting rod (14) and a roller (15); the rear side of the rear clamping plate (3) is fixedly connected to the first support plate (8); the upper part of the first support plate (8) is fixedly connected to the first electric push rod (9); the piston rod of the first electric push rod (9) is fixedly connected to the first telescopic rod (10); the bottom of the first telescopic rod (10) is fixedly connected to the lifting plate (11); the lifting plate (11 ) is slidably connected to the rear clamping plate (3) on the front side, the top of the lifting plate (11) is symmetrically connected to a second support plate (12), the two second support plates (12) are fixedly connected to the side away from each other with a second electric push rod (13), the piston rod of the second electric push rod (13) is fixedly connected to a second telescopic rod (1301), a limiting rod (14) is connected between the front sides of the two second telescopic rods (1301), the two ends of the limiting rod (14) are slidably connected to the lower part of the lifting plate (11), a roller (15) is rotatably connected to the limiting rod (14), and the roller (15) is located on the front side of the buffer pad (7).
4. A DBC substrate production glue brushing device according to claim 3, characterized in that: It also includes slideways (16), the upper part of the workbench (1) is symmetrically fixedly connected with the slideways (16), and the lower part of the limiting rod (14) is slidably connected to the inner sides of the two slideways (16).
5. The glue brushing device for producing a DBC substrate according to claim 4, characterized in that: The utility model also includes a support block (17), a storage box (18), a dust collector (19) and a lifting box (20). The front side of the front clamping plate (3) is fixedly connected to the support block (17), the top of the support block (17) is fixedly connected to the storage box (18), the top of the storage box (18) is fixedly connected to the dust collector (19), the lower part of the dust collector (19) is made of soft material and can be retracted and stretched, and the storage box (18) is slidably connected to the lifting box (20).
6. The glue-brushing device for producing a DBC substrate according to claim 5, characterized in that: It also includes anti-skid pads (21), and four anti-skid pads (21) are fixedly connected to the bottom of the workbench (1).