Full-automatic magnetic grinding device for heat dissipation substrate

Abstract

The invention discloses a heat dissipation substrate full-automatic magnetic grinding device which comprises a main machine (1), a workbench (2) is arranged on the main machine (1), a grinding box (3) is arranged on the workbench (2), a plurality of main body frames (20) are arranged at the bottom of the grinding box (3), each main body frame (20) comprises fixed main rods (4) which are symmetrically arranged, fixed auxiliary rods (5) are arranged between the two ends of each fixed main rod (4), and a plurality of transverse rods (6) are arranged between the two fixed main rods (4). The transverse rods (6) divide the fixed main rod (4) into a plurality of magnetic needle spaces (8); the end of the transverse rod (6) is sleeved with a base plate supporting piece (7), and the base plate supporting piece (7) is fixedly connected with the fixing main rod (4). By means of the fixing frame structure, the heat dissipation substrate is stably and flatly laid, so that the magnetic abrasive particles make stable contact with the surface of the heat dissipation substrate, and the grinding effect is improved.

Description

Technical Field

[0001] The invention relates to the field of magnetic grinding equipment, in particular to a fully automatic magnetic grinding device for a heat dissipation substrate. Background Art

[0002] During the preparation process of the heat dissipation substrate, a magnetic grinding device is required to grind its surface. Magnetic grinding uses the effect of a magnetic field to attract magnetic abrasive particles together to form a magnetic grinding brush. Relative motion is applied between the magnetic grinding brush and the workpiece, and the magnetic abrasive particles in the magnetic grinding brush will slide, roll, cut and other motions on the workpiece surface, thereby achieving grinding of the workpiece surface. For example, the Chinese utility model patent with announcement number CN207464954U discloses a high-voltage protection crystal magnetic grinding machine, including a body, and a support seat arranged at the lower end of the body; a high-voltage protection device is arranged at the upper end of the support seat; a workbench is arranged at the upper end of the high-voltage protection device; a grinding barrel is arranged at the upper right end of the grinding barrel; a control unit is arranged on the left side of the button unit; and a fan is arranged at the lower left end of the control unit. When using this type of device, the workpiece is placed in the grinding barrel, and then the magnetic grinding fluid is poured in and the device is run. This type of device is suitable for smaller workpieces and does not require the workpiece to be fixed. The heat dissipation substrate is a plate structure and the surface needs to be ground to improve the flatness. The heat dissipation substrate needs to be laid flat so that the magnetic abrasive particles can be in stable contact with the surface of the substrate. Obviously, this type of device is not applicable. Summary of the invention

[0003] The purpose of the present invention is to provide a fully automatic magnetic grinding device for a heat dissipation substrate. The present invention realizes the stable and flat placement of the heat dissipation substrate through a fixed frame structure, so that the magnetic abrasive particles are in stable contact with the surface of the heat dissipation substrate, thereby improving the grinding effect.

[0004] The technical solution of the present invention is as follows: a fully automatic magnetic grinding device for heat dissipation substrates comprises a main machine, a workbench is provided on the main machine, a grinding box is provided on the workbench, a plurality of main frames are provided at the bottom of the grinding box, the main frames comprise fixed main rods symmetrically arranged, a fixed sub-rod is provided between the two ends of the fixed main rods, a plurality of transverse rods are provided between the two fixed main rods, the transverse rods divide the fixed main rods into a plurality of magnetic needle spaces; a substrate support is sleeved on the end of the transverse rod, and the substrate support is fixedly connected to the fixed main rod; a pressing plate is provided on the fixed main rod, and a plurality of elastic side branches cooperating with the substrate support are evenly provided on the inner side of the pressing plate; a plurality of fixing components for resisting and pressing the main frame are provided on the inner wall of the grinding box.

[0005] In the above-mentioned fully automatic magnetic grinding device for heat dissipation substrate, a plurality of slots for clamping the transverse rods are evenly arranged on the fixed main rod, and the pressing plate is used to cover the notches of the slots.

[0006] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, the end of the fixed auxiliary rod has a flat plate portion, and the flat plate portion is connected to the end of the fixed main rod via a bolt.

[0007] In the aforementioned fully automatic magnetic grinding device for heat dissipating substrates, the substrate support member includes a sleeve body mounted on a transverse rod, support plates for supporting the substrate are provided on both sides of the sleeve body, the elastic side branches correspond to the support plates, a screw is passed through the support plate on one side, and a threaded hole matching the screw is provided on the inner side of the fixed main rod.

[0008] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, a pull ring is provided on the upper part of the elastic side branch for facilitating pulling the elastic side branch.

[0009] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, a counterweight plate is provided on the side plate of the grinding box, and the bottom of the counterweight plate is in conflict with the fixed main rod.

[0010] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, the fixing assembly includes a fixing seat connected to the inner wall of the grinding box, a supporting rib is provided at the lower end of the fixing seat, an elastic part is provided at the end of the supporting rib, and a pressing seat is provided at the end of the elastic part to abut against the upper surface of the main frame.

[0011] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, the fixed seat includes a seat body, the upper end of the seat body is provided with a straight plate connected to the inner wall of the grinding box by bolts, and a reinforcing rib is provided between the straight plate and the seat body.

[0012] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, the elastic member includes a fixed cylinder connected to the end of the supporting rib rod and a piston cylinder connected to the pressing seat, and the fixed cylinder and the piston cylinder fit together; a spring is provided between the fixed cylinder and the piston cylinder.

[0013] In the aforementioned fully automatic magnetic grinding device for heat dissipation substrate, the pressing seat includes a main body, the upper end of the main body is provided with a connecting seat connected to the piston cylinder, the lower end of the main body is provided with a pressing column, and the end of the pressing column is provided with a pressing head that contacts the upper surface of the main frame.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. In the present invention, a substrate support is installed on a transverse rod, and one end of the substrate support is firmly connected to a fixed main rod, a main frame composed of a fixed main rod, a fixed auxiliary rod and a transverse rod is placed inside a grinding box, the substrate support is sleeved on the transverse rod, and the substrate support is fixed to the fixed main body, a pressing plate is installed on the fixed main rod, and an elastic side branch is turned up. Since the substrate is a rectangular structure, the substrate support can properly support four right-angled parts on the substrate. After determining the position of the substrate, the elastic side branch is put down, and the elastic side branch can press the right angles of the substrate, thereby realizing a stable and reliable installation of the substrate, and a magnetic needle space formed between the substrate and the bottom of the grinding box is used to place the magnetic needle. When the device is started, the magnetic needle immediately starts to rotate, thereby realizing efficient grinding of the bottom of the substrate; the fixed structure realizes the stable and flat placement of the heat dissipation substrate, ensuring that the magnetic abrasive particles can stably contact the surface of the heat dissipation substrate, and significantly improving the grinding effect.

[0016] 2. After the substrate support is sleeved on the transverse rod, one end of the screw rod is connected to the threaded hole on the inner side of the fixed main rod, so that the substrate support cannot be turned around the transverse rod, so that the substrate can always maintain a stable flat placement state.

[0017] 3. The elastic side branch arranged on the pressing plate is connected to the pressing plate mainly through a shaft body with a torsion spring, so that the elastic side branch can be flipped to facilitate the taking and placing of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural diagram of the main frame;

[0020] Figure 3 is a schematic diagram of a substrate support;

[0021] Figure 4 is a schematic diagram of the flat plate portion;

[0022] Figure 5 is a schematic diagram of a card slot;

[0023] Figure 6 is a schematic diagram of a fixed component;

[0024] Figure 7 is a schematic diagram of a fixing seat;

[0025] Figure 8 A schematic diagram of an elastic member.

[0026] Explanation of the marks in the accompanying drawings: 1-main machine, 2-workbench, 3-grinding box, 4-fixed main rod, 5-fixed auxiliary rod, 6-lateral rod, 7-substrate support, 8-magnetic needle space, 9-pressure plate, 10-elastic side branch, 11-card slot, 12-flat plate, 13-sleeve, 14-support plate, 15-screw, 16-threaded hole, 17-pull ring, 20-main frame, 21-fixed assembly, 22-fixed seat, 23-support rib rod, 24-elastic part, 25-pressing seat, 221-seat body, 222-straight plate, 223-reinforcement rib, 241-fixed cylinder, 242-piston cylinder, 243-spring, 251-main body, 252-connecting seat, 253-pressing column, 254-pressing head. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0028] Embodiment: A fully automatic magnetic grinding device for heat dissipation substrate, comprising a main machine 1, as shown in the attached Figure 1 As shown, a magnetic device is installed in the host, which is generally composed of a strong permanent magnet or an electromagnet, and is used to generate a strong magnetic field to provide a power basis for grinding, so that the magnetic needle moves under the action of the magnetic field, and the magnetic needle contacts the lower surface of the substrate. The surface flatness of the heat dissipation substrate has a great influence on the heat dissipation effect. The magnetic grinder can drive the magnetic abrasive particles through the magnetic field to evenly grind the surface of the heat dissipation substrate, so that the surface flatness is greatly improved; the host 1 has a workbench 2, and the workbench 2 is provided with a grinding box 3. Before grinding the substrate, it is necessary to pour magnetic grinding fluid into it to lubricate and clean the substrate. A drain pipe is provided on the side of the grinding box to facilitate the discharge of the used magnetic grinding fluid; a plurality of main frames 20 are installed at the bottom of the grinding box 3, as shown in the attached figure. Figure 2 As shown, in this embodiment, the main frame is divided into two groups, and the main frame 20 includes fixed main rods 4 arranged symmetrically with each other, and fixed auxiliary rods 5 are installed between the two ends of the fixed main rods 4. The ends of the fixed auxiliary rods 5 have flat plate portions 12, as shown in the attached Figure 4 As shown, the flat plate 12 is connected to the end of the fixed main rod 4 through a bolt, and the bolt and the fixed secondary rod can be better connected and installed through the flat plate. A plurality of transverse rods 6 are installed between the two fixed main rods 4, and the transverse rods 6 divide the fixed main rods 4 into a plurality of magnetic needle spaces 8; a magnetic needle is placed at the bottom of the grinding box, and after the electromagnet in the main machine rotates, the magnetic field changes, driving the rotation of the magnetic needle, and the magnetic needle rotates in the magnetic needle space; the fixed main rod 4 is evenly provided with a plurality of slots 11 for clamping the transverse rods 6, as shown in the attached Figure 5As shown, the pressing plate 9 is used to cover the notch of the card slot 11. After the transverse rod is inserted into the card slot, the pressing plate is installed on the fixed main rod. The pressing plate is connected to the fixed main rod by screw connection. The pressing plate seals the notch of the card slot to prevent the transverse rod from moving. The installation is convenient and quick. A substrate support 7 is installed between the end of the transverse rod 6 and the fixed main rod 4. The substrate support 7 is fixedly connected to the fixed main rod 4; as shown in the attached Figure 3 As shown, a pressing plate 9 is mounted on the fixed main rod 4, and the inner side of the pressing plate 9 is uniformly provided with multiple groups of elastic side branches 10 that match the substrate support 7. The upper part of the elastic side branch 10 is provided with a pull ring 17 for pulling the elastic side branch. The elastic side branch is connected to the pressing plate through a rotating shaft with a torsion spring.

[0029] By pulling the pull ring, the elastic side branch can be rotated. After placing the substrate on the substrate support, the pull ring is released, and the elastic side branch can stably fix the substrate, making it convenient to take and place the substrate.

[0030] The substrate support 7 includes a sleeve 13 sleeved on the transverse rod 6, and the sleeve 13 has support sheets 14 for supporting the substrate on both sides. The elastic side branches 10 correspond to the support sheets 14, and the elastic side branches and the support sheets cooperate with each other to fix the heat dissipation substrate. A screw 15 is inserted into the support sheet 14 on one side, and a threaded hole 16 is provided on the inner side of the fixed main rod 4 to cooperate with the screw 15. When installing the substrate support, the sleeve is first sleeved on the transverse rod, and then the screw on the support sheet is screwed into the threaded hole.

[0031] The inner wall of the grinding box 3 is provided with a fixing assembly 21 for resisting and pressing the main frame 20. Figure 6 As shown; the main frame itself has a certain weight, and after the heat dissipation substrate is installed, the heat dissipation substrate can be in a stable state even under the grinding of the magnetic needle. In order to further stabilize the main frame, the main frame can be pressed and stabilized by a fixing component to maintain the stability of the heat dissipation substrate and improve the grinding effect of the magnetic needle; the fixing component 21 includes a fixing seat 22 connected to the inner wall of the grinding box 3, a supporting rib 23 is provided at the lower end of the fixing seat 22, an elastic member 24 is provided at the end of the supporting rib 23, and a pressing seat 25 that contacts the upper surface of the main frame 20 is installed at the end of the elastic member 24; the fixing seat 22 includes a seat body 221, as shown in the attached Figure 7 As shown, the upper end of the seat body 221 has a straight plate 222 connected to the inner wall of the grinding box 3 by bolts, and a reinforcing rib 223 is provided between the straight plate 222 and the seat body 221; the reinforcing rib can improve the structural strength of the entire fixed seat, and the fixed seat is stably installed on the inner wall of the grinding box; the elastic member 24 includes a fixed cylinder 241 connected to the end of the supporting rib rod 23 and a piston cylinder 242 connected to the pressing seat 25, as shown in the attached Figure 8As shown, the fixed cylinder 241 and the piston cylinder 242 fit together; a spring 243 is installed between the fixed cylinder 241 and the piston cylinder 242, and the elastic member can make the pressing seat have a pre-tightening force when contacting the main frame, thereby improving the stability of the pressing seat when contacting and pressing; the pressing seat 25 includes a main body 251, and the upper end of the main body 251 is equipped with a connecting seat 252 connected to the piston cylinder 242, and the lower end of the main body 251 has a pressing column 253, and the end of the pressing column 253 has a pressing head 254 that contacts the upper surface of the main frame 20. The pressing head has two pressing heads, which contact with two adjacent substrate support members, and adopts a point-contact pressing form to increase the pressing force. The grinding box is a rectangular structure, and there are four groups of fixing components, which are respectively arranged on the four inner walls of the grinding box. Two fixing components are arranged on the left and right inner walls, respectively pressing the corresponding main body frames. The ends of the fixing components arranged on the front and rear sides have two pressing heads, and the two pressing heads press the corresponding main body frames on the left and right sides respectively. Through such an arrangement, the main body frame can be firmly pressed, thereby improving the stability of the main body frame after being placed.

[0032] Working principle of the present invention: the main frame 20 is composed of a mutually symmetrical fixed main rod 4 and a fixed sub-rod 5 between the two ends. The fixed sub-rod 5 is connected to the end of the fixed main rod 4 through a flat plate portion 12 by bolts. There are multiple transverse rods 6 between the two fixed main rods 4. After the transverse rod 6 is inserted into the slot 11 on the fixed main rod 4, the notch is covered by the pressure plate 9 to prevent displacement. The end of the transverse rod 6 is sleeved with a substrate support 7. The support sheets 14 on both sides of the sleeve 13 of the substrate support 7 support the substrate. The screw 15 in the support sheet 14 on one side is screwed into the threaded hole 16 on the inner side of the fixed main rod 4 to prevent the substrate support 7 from turning around the transverse rod 6; the pressure plate 9 is installed on the fixed main rod 4, and the inner elastic side branch 10 of the pressure plate 9 is connected to the pressure plate through a rotating shaft with a torsion spring. Pulling the pull ring 17 can flip the elastic side branch 10. After the substrate is placed on the substrate support 7, Loosen the pull ring 17, and the elastic side branch 10 presses the right angle of the substrate to achieve stable and flat installation of the substrate. The magnetic needle space 8 formed by the substrate and the bottom of the grinding box 3 is used to place the magnetic needle; the electromagnet in the main machine 1 rotates, and the change in the magnetic field drives the magnetic needle to rotate in the magnetic needle space 8. At the same time, the fixing component 21 on the inner wall of the grinding box 3 stabilizes the main frame 20. Four groups of fixing components 21 are respectively arranged on the four inner walls of the grinding box 3, of which one group on each of the left and right sides presses the corresponding main frame respectively, and two pressing heads at the ends of the front and rear sides respectively press the main frames on the left and right sides, and the pressing head 254 of the pressing seat 25 touches the two adjacent substrate support members to achieve stable pressing of the main frame 20, ensuring that the heat dissipation substrate always remains stable during magnetic needle grinding, and the magnetic needle efficiently grinds the lower surface of the substrate to improve the surface flatness of the heat dissipation substrate.

Claims

1. A fully automatic magnetic grinding device for a heat dissipation substrate, comprising a main machine (1), a workbench (2) being provided on the main machine (1), a grinding box (3) being provided on the workbench (2), and characterized in that: The bottom of the grinding box (3) is provided with a plurality of main frames (20), the main frames (20) include fixed main rods (4) arranged symmetrically with each other, a fixed sub-rod (5) is provided between the two ends of the fixed main rods (4), and a plurality of transverse rods (6) are provided between the two fixed main rods (4), and the transverse rods (6) divide the fixed main rods (4) into a plurality of magnetic needle spaces (8); the ends of the transverse rods (6) are sleeved with substrate support members (7), and the substrate support members (7) are fixedly connected to the fixed main rods (4); a pressing plate (9) is provided on the fixed main rod (4), and a plurality of groups of elastic side branches (10) matching with the substrate support members (7) are evenly provided on the inner side of the pressing plate (9); and a plurality of fixing components (21) for resisting and pressing the main frames (20) are provided on the inner wall of the grinding box (3).

2. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 1, characterized in that: The fixed main rod (4) is evenly provided with a plurality of slots (11) for clamping the transverse rod (6), and the pressing plate (9) is used to cover the notches of the slots (11).

3. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 1, characterized in that: The end of the fixed auxiliary rod (5) has a flat plate portion (12), and the flat plate portion (12) is connected to the end of the fixed main rod (4) via a bolt.

4. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 1, characterized in that: The substrate support member (7) comprises a sleeve body (13) sleeved on the transverse rod (6), support sheets (14) for supporting the substrate are provided on both sides of the sleeve body (13), the elastic side branches (10) correspond to the support sheets (14), a screw rod (15) is inserted into the support sheet (14) on one side, and a threaded hole (16) matching with the screw rod (15) is provided on the inner side of the fixed main rod (4).

5. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 1, characterized in that: The upper part of the elastic side branch (10) is provided with a pull ring (17) for facilitating pulling the elastic side branch.

6. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 1, characterized in that: The fixing assembly (21) comprises a fixing seat (22) connected to the inner wall of the grinding box (3), a supporting rib (23) is provided at the lower end of the fixing seat (22), an elastic member (24) is provided at the end of the supporting rib (23), and a pressing seat (25) is provided at the end of the elastic member (24) that contacts the upper surface of the main frame (20).

7. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 6, characterized in that: The fixed seat (22) comprises a seat body (221), the upper end of the seat body (221) is provided with a straight plate (222) connected to the inner wall of the grinding box (3) via bolts, and a reinforcing rib (223) is provided between the straight plate (222) and the seat body (221).

8. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 6, characterized in that: The elastic member (24) comprises a fixed cylinder (241) connected to the end of the supporting rib rod (23) and a piston cylinder (242) connected to the pressing seat (25); the fixed cylinder (241) and the piston cylinder (242) fit each other; a spring (243) is provided between the fixed cylinder (241) and the piston cylinder (242).

9. The fully automatic magnetic grinding device for heat dissipation substrate according to claim 8, characterized in that: The pressing seat (25) comprises a main body (251), the upper end of which is provided with a connecting seat (252) connected to the piston cylinder (242), the lower end of which is provided with a pressing column (253), and the end of which is provided with a pressing head (254) that contacts the upper surface of the main frame (20).

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