Grinding machine for PCB (Printed Circuit Board) processing

Abstract

The utility model relates to the technical field of PCB (printed circuit board) processing, in particular to a grinding machine for PCB processing, which comprises a working table, a feeding device is arranged at one end of the working table, a discharging device is arranged at the other end of the working table, the feeding device and the discharging device are oppositely arranged, a grinding device and a linear motor are further arranged on the working table, a mechanical arm is further arranged on the linear motor, and the mechanical arm is arranged on the working table. The linear motor is used for driving the mechanical arm to move back and forth, the mechanical arm comprises a bottom arm, a first mechanical arm wrapping shaft arm and a second shaft arm, the bottom end of the bottom arm is installed on the linear motor, one end of the first shaft arm is rotationally connected with the top end of the bottom arm, the other end of the first shaft arm is rotationally connected with the second shaft arm, and the other end of the second shaft arm is detachably connected with a material taking and placing assembly. The material taking and placing assembly is a suction cup assembly or a clamping piece, the mechanical arm is arranged on the workbench, automatic material taking, grinding and feeding can be achieved through the mechanical arm, and the grinding work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB processing, in particular to a grinding machine used for PCB processing. Background Art

[0002] PCBs are typically the mainboards of electronic devices, carrying integrated circuits. They are the core unit of nearly all electronic devices. After production, PCBs typically require grinding using a grinder. For example, Chinese utility model patent No. CN215394549U discloses a PCB sample grinder, comprising a base, a grinding mechanism, and a sample adsorption device. The grinding device includes a turntable, a magnetic ring, sandpaper and a pressure ring. The magnetic attraction of the magnetic ring can adsorb the pressure ring, and the pressure ring is stably fixed on the turntable so that the pressure ring presses the sandpaper. Since the pressure ring is fixed by magnetic attraction, compared with the existing technology that relies solely on the pressure ring's own gravity to complete the fixation, the present application can well prevent the pressure ring from shaking or even flying out of the turntable due to excessive centrifugal force, greatly improving the safety of the PCB sample grinder, and can well hold the sandpaper; since the PCB sample grinder includes a sample adsorption device, the sample adsorption device uses an adsorption disk to vacuum adsorb the PCB sample. Compared with the existing technology that uses tweezers to clamp the PCB sample, the present application will not cause the PCB sample to fall onto the turntable due to insufficient force or no force, thereby affecting the grinding efficiency of the PCB sample.

[0003] The PCB sample grinder disclosed above requires manual control of grinding, which cannot accurately grind to the required position, and easily causes excessive scrapping of PCB boards. Utility Model Content

[0004] In view of the above technical problems in the prior art, the utility model provides a grinding machine for PCB processing.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A grinding machine for PCB processing includes a workbench, a loading device is provided at one end of the workbench, and a unloading device is provided at the other end, the loading device and the unloading device are arranged opposite to each other, a grinding device and a linear motor are provided on the workbench, a mechanical arm is also provided on the linear motor, the linear motor is used to drive the mechanical arm to move back and forth, the mechanical arm includes a bottom arm, a first shaft arm and a second shaft arm, the bottom end of the bottom arm is installed on the linear motor, one end of the first shaft arm is rotatably connected to the top end of the bottom arm, the other end of the first shaft arm is rotatably connected to the second shaft arm, and the other end of the second shaft arm is detachably connected to a material picking and placing assembly.

[0007] Preferably, the suction cup assembly includes a truss, one end of the truss is connected to the second axis arm, and the other end is provided with two or more parallel rods, the rods are provided with arranged vacuum suction nozzles, and the distance between adjacent vacuum suction nozzles can be adjusted. The vacuum suction nozzle is connected to an external air pump to achieve suction or ejection.

[0008] Preferably, the grinding device includes a drive motor, a transmission assembly, a turntable and sandpaper. The drive motor is arranged in the workbench, the transmission assembly is respectively connected to the drive motor turntable, the drive motor is used to drive the transmission assembly to drive the turntable to rotate, and the sandpaper is arranged on the turntable.

[0009] Preferably, the sandpaper is connected to the turntable through Velcro or a magnetic assembly. The magnetic assembly includes a magnetic ring and a pressure ring. The magnetic ring is sleeved on the turntable, the sandpaper is arranged on the top surface of the turntable, and an iron ring layer is arranged on the pressure ring. The magnetic ring is used to absorb the iron ring layer, prompting the pressure ring to be fixed on the turntable so that the pressure ring presses the sandpaper.

[0010] Preferably, the transmission assembly includes a driving wheel, a driven wheel and a belt, the driving wheel is connected to the driving motor, the driven wheel is connected to the turntable, the belt is connected to the driving wheel and the driven wheel respectively, and the driving motor drives the driving wheel to rotate through the belt.

[0011] Preferably, a water outlet device is also provided on the workbench, and the water outlet device includes a water outlet pipe and a water pump. The water outlet pipe is connected to the water pump, and the water outlet pipe of the water outlet device extends above the grinding device to cool the grinding device.

[0012] Preferably, the workbench is further provided with a water retaining ring, which is arranged around the grinding device, and an opening is further provided on the water retaining ring, and a water flow trough matching the opening is further provided on the workbench.

[0013] Preferably, the loading device includes a loading chassis and a loading conveyor belt arranged on the loading chassis, and the loading device cooperates with the robotic arm to load the PCB board;

[0014] The unloading device includes an unloading base frame and an unloading conveyor belt arranged on the unloading base frame. The unloading device cooperates with the robotic arm to unload PCB boards.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a grinding machine for PCB processing, comprising a workbench, a loading device being provided at one end of the workbench, and a unloading device being provided at the other end, the loading device and the unloading device being arranged opposite to each other, a grinding device and a linear motor being further provided on the workbench, a mechanical arm being further provided on the linear motor, the linear motor being used to drive the mechanical arm to move back and forth, the mechanical arm comprising a bottom arm, a first mechanical arm-shaft arm and a second shaft arm, the bottom end of the bottom arm being mounted on the linear motor, one end of the first shaft arm being rotatably connected to the top end of the bottom arm, the other end of the first shaft arm being rotatably connected to the second shaft arm, the other end of the second shaft arm being detachably connected to a material picking and placing assembly, the material picking and placing assembly being a suction cup assembly or a clamping member, and by arranging the mechanical arm on the workbench, the mechanical arm can realize automatic material picking, grinding and loading, thereby improving the working efficiency of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a grinder used for PCB processing in an embodiment.

[0018] Figure 2 It is a three-dimensional view of the robotic arm in the embodiment.

[0019] Figure 3 It is a three-dimensional diagram of the material taking and placing component in the embodiment.

[0020] Figure 4 Exploded view of the grinding machine in the embodiment.

[0021] Reference numerals: 1, workbench; 101, linear motor; 102, robotic arm; 103, bottom arm; 104, first axis arm; 105, second axis arm; 106, pick-up and unload assembly; 107, truss; 108, rod; 109, vacuum nozzle; 110, water retaining ring; 111, opening; 112, water flow trough;

[0022] 2. Grinding device; 201. Drive motor; 202. Transmission assembly; 203. Driving pulley; 204. Driven pulley; 205. Belt; 206. Turntable; 207. Sandpaper; 208. Magnetic assembly; 209. Magnetic ring; 210. Pressure ring; 211. Iron ring layer;

[0023] 3. Water outlet device; 301. Water pump; 302. Water outlet pipe;

[0024] 4. Loading device; 401. Loading chassis; 402. Loading conveyor belt;

[0025] 5. Unloading device; 501. Unloading chassis; 502. Unloading conveyor belt. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0027] like Figures 1 to 4 As shown, a grinding device 2 for PCB board processing includes a workbench 1, on which a grinding device 2 is provided, and the grinding device 2 is used to grind PCB boards. The workbench 1 is also provided with a linear motor 101, and a robotic arm 102 is provided on the linear motor 101. The linear motor 101 drives the robotic arm 102 to move back and forth. A loading device 4 is provided at one end of the workbench 1, and a unloading device 5 is provided at the other end. The loading device 4 and the unloading device 5 are arranged opposite to each other, wherein the loading device 4 includes a loading base frame 401 and a loading conveyor belt 402 arranged on the loading base frame 401, and the unloading device 5 includes a unloading base frame 501 and a unloading conveyor belt 502 arranged on the unloading base frame 501. The robotic arm 102 is used to transport the PCB board on the loading device 4 to the grinding device 2 for grinding and then transport the ground PCB board to the unloading device 5. The robotic arm 102 includes a bottom arm 103, a first shaft arm 104 and a second shaft arm 105, wherein the bottom end of the bottom arm 103 is installed on the linear motor 101, one end of the first shaft arm 104 is rotatably connected to the top end of the bottom arm 103, and the other end of the first shaft arm 104 is rotatably connected to the second shaft arm 105, and the other end of the second shaft arm 105 is detachably connected to the material picking and placing assembly 106.

[0028] Furthermore, the material taking and unloading component 106 includes a truss 107, one end of the truss 107 is connected to the second axis arm 105, and the other end of the truss 107 is provided with two or more parallel rods 108, and the rods 108 are provided with arranged vacuum suction nozzles 109, and the distance between adjacent vacuum suction nozzles 109 can be adjusted. The vacuum suction nozzle 109 is connected to the outer air pump to achieve suction or ejection.

[0029] Furthermore, the grinding device 2 includes a driving motor 201, a transmission component 202, a turntable 206, and sandpaper 207. The driving motor 201 is arranged in the workbench 1, the transmission component 202 drives the turntable 206 to rotate, and the sandpaper 207 is arranged on the turntable 206. The turntable 206 can drive the sandpaper 207 to rotate together, and the sandpaper 207 is used to grind the PCB board. The sandpaper 207 is connected to the turntable 206 through a magnetic component 208, wherein the magnetic component 208 includes a magnetic ring 209 and a pressure ring 210, wherein the magnetic ring 209 is sleeved on the turntable 206, and the sandpaper 207 is arranged on the top surface of the turntable 206, wherein the pressure ring 210 is also provided with an iron ring layer 211, and the magnetic ring 209 is used to absorb the iron ring layer 211, so that the pressure ring 210 is fixed on the turntable 206 so that the pressure ring 210 presses the sandpaper 207. Due to the pressure Ring 210 is provided with an iron ring layer 211. Under the magnetic attraction of magnetic ring 209, pressure ring 210 can be fixed to turntable 206. Pressure ring 210 can press sandpaper 207, so that sandpaper 207 is clamped between turntable 206 and pressure ring 210. This prevents sandpaper 207 from flying off turntable 206 due to excessive centrifugal force caused by pressure ring 210 when the drive motor 201 is activated to output power to rotate turntable 206 to grind the PCB board. Sandpaper 207 can also be adhered to turntable 206 using Velcro.

[0030] Furthermore, the transmission assembly 202 includes a driving pulley 203, a driven pulley 204, and a belt 205. The driving pulley 203 is connected to the drive shaft of the drive motor 201, the driven pulley 204 is connected to the turntable 206, and the belt 205 is connected to the driving pulley 203 and the driven pulley 204 respectively. The driving pulley 203 is a component connected to the drive shaft of the drive motor 201, and the belt 205 is an intermediate component connecting the driving pulley 203 and the driven pulley 204. When the drive motor 201 outputs power, the driven pulley 204 can rotate along with the driving pulley 203 under the action of the belt 205, thereby allowing the turntable 206 to rotate.

[0031] Furthermore, the workbench 1 is also provided with a water outlet device 3, which includes a water pump 301 and a water outlet pipe 302. The water outlet pipe 302 is connected to the water pump 301, wherein the water outlet pipe 302 of the water outlet device 3 extends to the top of the grinding device 2. The water outlet pipe 302 is simultaneously started when the grinding device 2 starts grinding, and is used to cool the grinding device 2 and at the same time avoid the generation of dust by the grinding device 2 during grinding. A water retaining ring 110 is also provided on the workbench 1. The water retaining ring 110 is arranged around the grinding device 2. The water retaining ring 110 plays a role of blocking water. When water is added to the sandpaper 207, the rotation drives the sandpaper 207 to rotate, which will cause water droplets to splash on the sandpaper 207. The provision of the water retaining ring 110 can effectively avoid the splashing of water droplets. An opening 111 is provided on the water retaining ring 110, and a water flow groove 112 matching the opening 111 is provided on the workbench 1. When the water level in the water retaining ring 110 is too high, the water retaining ring 110 can be rotated to connect the water flow groove 112 to drain the water in the water retaining ring 110.

[0032] In the description of the present invention, it is obvious that the embodiments described are only some embodiments of the present invention, rather than all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention as claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to connections directly or indirectly through an intermediary, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A grinding machine for PCB board processing, characterized in that, The invention comprises a workbench (1), wherein one end of the workbench (1) is provided with a loading device (4), and the other end is provided with a unloading device (5), the loading device (4) and the unloading device (5) are arranged relative to each other, a grinding device (2) and a linear motor (101) are provided on the workbench (1), a mechanical arm (102) is further provided on the linear motor (101), the linear motor (101) is used to drive the mechanical arm (102) to move back and forth, the mechanical arm (102) comprises a bottom arm (103), a first shaft arm (104) and a second shaft arm (105), the bottom end of the bottom arm (103) is mounted on the linear motor (101), one end of the first shaft arm (104) is rotatably connected to the top end of the bottom arm (103), the other end of the first shaft arm (104) is rotatably connected to the second shaft arm (105), and the other end of the second shaft arm (105) is detachably connected to a material taking and placing assembly (106).

2. A grinding machine for PCB board processing according to claim 1, characterized in that, The material taking and discharging assembly (106) includes a truss (107), one end of the truss (107) is connected to the second shaft arm (105), and the other end is provided with two or more parallel rods (108), the rods (108) are provided with arranged vacuum suction nozzles (109), and the distance between adjacent vacuum suction nozzles (109) can be adjusted. The vacuum suction nozzles (109) are connected to an external air pump to achieve suction or ejection.

3. The grinding machine for PCB board processing according to claim 1, characterized in that: The grinding device (2) comprises a driving motor (201), a transmission assembly (202), a turntable (206) and sandpaper (207). The driving motor (201) is arranged in the workbench (1). The transmission assembly (202) is connected to the driving motor (201) and the turntable (206) respectively. The driving motor (201) is used to drive the transmission assembly (202) to drive the turntable (206) to rotate. The sandpaper (207) is arranged on the turntable (206).

4. A grinding machine for PCB board processing according to claim 3, characterized in that: The sandpaper (207) is connected to the turntable (206) through a magnetic attraction component (208). The magnetic attraction component (208) comprises a magnetic ring (209) and a pressure ring (210). The magnetic ring (209) is sleeved on the turntable (206). The sandpaper (207) is arranged on the top surface of the turntable (206). An iron ring layer (211) is arranged on the pressure ring (210). The magnetic ring (209) is used to absorb the iron ring layer (211), so as to enable the pressure ring (210) to be fixed on the turntable (206) and to press the sandpaper (207).

5. The grinding machine for PCB board processing according to claim 3, characterized in that: The transmission assembly (202) includes a driving wheel (203), a driven wheel (204) and a belt (205). The driving wheel (203) is connected to the driving motor (201), the driven wheel (204) is connected to the turntable (206), and the belt (205) is connected to the driving wheel (203) and the driven wheel (204) respectively. The driving motor (201) drives the driving wheel (203) to rotate through the belt (205).

6. The grinding machine for PCB board processing according to claim 1, characterized in that: A water outlet device (3) is also provided on the workbench (1). The water outlet device (3) comprises a water outlet pipe (302) and a water pump (301). The water outlet pipe (302) is connected to the water pump (301). The water outlet pipe (302) of the water outlet device (3) extends above the grinding device (2) to cool the grinding device (2).

7. A grinding machine for PCB board processing according to claim 6, characterized in that: The workbench (1) is further provided with a water retaining ring (110), which is arranged around the grinding device (2). The water retaining ring (110) is further provided with an opening (111), and the workbench (1) is further provided with a water flow trough (112) that matches the opening (111).

8. The grinding machine for PCB board processing according to claim 1, characterized in that: The loading device (4) comprises a loading base frame (401) and a loading conveyor belt (402) arranged on the loading base frame (401); the loading device (4) cooperates with the mechanical arm (102) to load PCB boards; The unloading device (5) comprises an unloading base frame (501) and an unloading conveyor belt (502) arranged on the unloading base frame (501). The unloading device (5) cooperates with the mechanical arm (102) to unload PCB boards.

Images