PCB structure polishing device

Abstract

The utility model discloses a PCB (Printed Circuit Board) structure polishing device in the field of PCB production, which comprises a controller and a bottom plate, and an n-shaped bracket is fixedly connected onto the bottom plate; a second driving piece is mounted at the top of the bottom plate; the top of the second driving part is coaxially and fixedly connected with a transverse plate for placing a PCB; a plurality of cameras are installed on the side walls of the transverse plates and electrically connected with the controller. Electromagnets are mounted at the two ends of the upper part of the side wall of the transverse plate and are electrically connected with the controller; the bottom plate is provided with a polishing assembly used for polishing the PCB. A pressing assembly used for fixing the PCB is arranged above the transverse plate. A pressure sensor is installed on the top of the transverse plate and electrically connected with the controller. The side wall of the PCB is effectively positioned through the adsorption effect of the electromagnet and the iron block, so that the side wall of the PCB is flush with the side wall of the transverse plate, and follow-up accurate grinding is facilitated; and the PCB is driven by the second driving part to rotate, so that each side of the PCB can be polished.

Description

Technical Field

[0001] The utility model belongs to the field of PCB board production, in particular to a PCB board structure polishing device. Background Art

[0002] PCB, Chinese name for printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier for the electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board.

[0003] In the production process of printed circuit boards, the circuit boards need to be polished. When the existing devices polish the PCB boards, the side walls of the PCB boards cannot be effectively positioned, resulting in the ordinary polishing devices not being able to polish the circuit boards accurately when working, and usually only one side can be polished during polishing, and manual reversal is required when polishing multiple sides; therefore, it is necessary to propose a PCB board structure polishing device. Utility Model Content

[0004] The purpose of the utility model is to provide a PCB board structure grinding device, which effectively positions the side wall of the PCB board through the adsorption effect of the electromagnet and the iron block, so that the side wall of the PCB board is flush with the side wall of the horizontal plate, which is convenient for subsequent precise grinding; and the PCB board is driven to rotate by the second driving member, so that each side of the PCB board can be ground.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a PCB board structure polishing device, comprising a controller and a base plate, a "ㄇ"-shaped bracket is fixedly connected to the base plate;

[0006] A second driving member is installed on the top of the bottom plate; a horizontal plate for placing a PCB board is coaxially fixedly connected to the top of the second driving member; a plurality of cameras are installed on the side walls of the horizontal plate, and the cameras are electrically connected to the controller; electromagnets are installed at both ends of the upper part of the side walls of the horizontal plate, and the electromagnets are electrically connected to the controller;

[0007] A polishing assembly for polishing the PCB is provided on the bottom plate; a pressing assembly for fixing the PCB is provided above the horizontal plate; a pressure sensor is installed on the top of the horizontal plate, and the pressure sensor is electrically connected to the controller.

[0008] The following principles and beneficial effects are achieved by adopting the above scheme:

[0009] Install iron blocks on the top of the four corners of the PCB board in advance, and then place the PCB board on the horizontal board; the pressure sensor senses the pressure of the PCB board and transmits the information to the controller; the controller controls the four cameras to start based on the information, and the cameras respectively take pictures of the scenes in front of them, and transmit the captured images to the controller; since there is only one grinding roller, when a camera takes a picture of the grinding roller, it means that the grinding roller is located in front of the camera, and the controller controls the two electromagnets on the same side of the camera to start based on the information, and the two electromagnets adsorb the bottom of the adjacent iron block, and the thickness of the electromagnet is the same as the length of the iron block extending out of the PCB board, so that the side wall of the PCB board can be flush with the side wall of the horizontal board. Under the adsorption action of the electromagnet and the iron block, the side wall of the PCB board is flush with the side wall of the horizontal board, which is convenient for subsequent grinding.

[0010] The PCB board is pressed by the pressing component, and then the second driving member is started. The second driving member drives the cross plate to rotate, and the cross plate and the other side of the PCB board rotate to the front of the grinding roller. At this time, the camera takes a picture of the front again and transmits the captured image to the controller. When the other camera takes a picture of the grinding roller, it means that the grinding roller is located in front of the camera. Based on the information, the controller controls the two electromagnets on the same side of the camera to start. The two electromagnets adsorb the bottom of the adjacent iron block. The side wall of the PCB board is flush with the side wall of the cross plate under the adsorption action of the electromagnet and the iron block, which is convenient for subsequent grinding. The grinding steps of other side walls are the same.

[0011] The difference between the utility model and the prior art lies in that: the side wall of the PCB board is effectively positioned through the adsorption effect of the electromagnet and the iron block, so that the side wall of the PCB board is flush with the side wall of the horizontal plate, which is convenient for subsequent precise grinding; and the PCB board is driven to rotate by the second driving member, so that each side of the PCB board can be ground.

[0012] Furthermore, the pressing assembly includes a nut seat, and connecting rods are symmetrically fixedly connected on both sides of the nut seat, and the ends of the connecting rods away from the nut seat are slidingly matched with the vertical ends of the adjacent brackets; an oblique rod is fixedly connected to the outer wall of the nut seat along its circumference; and a pressure plate is fixedly connected to the ends of the oblique rods away from the nut seat.

[0013] Beneficial effect: The nut seat cooperates with the inclined rod and the pressure plate to press the PCB board.

[0014] Furthermore, sliding grooves are provided on the side walls facing each other at the vertical ends of the bracket; a first driving member is embedded and installed at the bottom of the horizontal end of the bracket, and the output shaft of the first driving member is coaxially fixedly connected with a screw rod, and the nut seat is sleeved on the screw rod and threadedly connected to the screw rod; the end of the connecting rod away from the nut seat is respectively located in the sliding groove adjacent to it and vertically slides with the sliding groove.

[0015] Beneficial effect: the first driving member drives the screw to rotate, and under the limiting effect of the slide slot, when the screw rotates, the nut seat, the connecting rod, the inclined rod and the pressing plate can move downward until they press the PCB board.

[0016] Furthermore, one end of the screw rod away from the first driving member is fixedly connected with a baffle.

[0017] Beneficial effect: Since the nut seat moves up and down on the screw, a baffle is provided to prevent the nut seat from detaching from the screw when moving downward. The baffle can limit the nut seat when it moves downward to prevent the nut seat from moving too far downward and detaching from the screw.

[0018] Furthermore, the grinding assembly includes a slide rod, a motor is embedded in the upper part of the slide rod, and the output shaft of the motor is coaxially fixedly connected with the grinding roller; an I-shaped groove is opened on the top of the base plate, and the slide rod is located in the I-shaped groove and slidably cooperates with the I-shaped groove.

[0019] Beneficial effect: The slide bar can be slid in the I-shaped groove so that the grinding roller can contact the side wall of the PCB board; the motor is started, the motor drives the grinding roller to rotate, and the grinding roller is used to grind the side wall of the PCB board.

[0020] Furthermore, a slide rail is installed in the I-shaped groove, and the slide rod slides in the I-shaped groove through the slide rail.

[0021] Beneficial effect: The setting of the slide rail facilitates the slide bar to move flexibly in the I-shaped groove.

[0022] Furthermore, a handle is fixedly connected to the side wall of the slide rod.

[0023] Beneficial effect: The user can drive the slide bar to move by holding the handle. The setting of the handle increases the stability of the user when sliding the slide bar, and it is more convenient to hold the slide bar.

[0024] Furthermore, a rubber pad is fixedly connected to the bottom of the pressing plate.

[0025] Beneficial effect: The rubber pad has a certain elasticity. When the pressure plate presses the PCB, the rubber pad can buffer the pressing force to a certain extent, thereby preventing the pressure plate from being too strong when pressing the PCB, thereby causing damage to the PCB. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric diagram of an embodiment of the utility model.

[0027] Figure 2 It is an axonometric view of the slide bar according to an embodiment of the utility model.

[0028] Figure 3 This is an axonometric diagram of the connection between the PCB board and the iron block in the embodiment of the utility model. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The figure marks in the drawings of the specification include: base plate 1, bracket 2, connecting rod 3, first driving member 4, screw 5, nut seat 6, inclined rod 7, pressure plate 8, second driving member 9, I-shaped groove 10, slide rod 11, handle 12, grinding roller 13, slide groove 14, cross plate 16, iron block 17.

[0031] Embodiment 1

[0032] The embodiment is basically as shown in the attached Figure 1-3 As shown:

[0033] A PCB board structure polishing device, comprising a controller and a base plate 1, a bracket 2 in the shape of "ㄇ" is welded on the base plate 1, and the model of the controller is preferably SPC-STW-S0402CTR;

[0034] A second driving member 9 is installed on the top of the bottom plate 1; a horizontal plate 16 for placing a PCB board is coaxially fixedly connected to the top of the second driving member 9 by bolts; cameras (not shown in the figure) are installed on the side walls of the horizontal plate 16, and the model of the camera is preferably Kaixing TM-10, and the cameras are electrically connected to the controller; electromagnets are installed at both ends of the upper part of the side wall of the horizontal plate 16, and the electromagnets are electrically connected to the controller;

[0035] A polishing assembly for polishing the PCB is provided on the bottom plate 1; a pressing assembly for fixing the PCB is provided above the horizontal plate 16; a pressure sensor (not shown in the figure) is installed on the top of the horizontal plate 16, and the pressure sensor is electrically connected to the controller.

[0036] The pressing assembly includes a nut seat 6, with connecting rods 3 symmetrically welded on both sides of the nut seat 6, and the ends of the connecting rods 3 away from the nut seat 6 are slidingly matched with the vertical ends of the adjacent bracket 2; an inclined rod 7 is welded on the outer wall of the nut seat 6 along its circumference; and a pressure plate 8 is welded on the ends of the inclined rods 7 away from the nut seat 6.

[0037] Slide grooves 14 are provided on the side walls facing each other at the vertical ends of the bracket 2; a first driving member 4 is embedded and installed at the bottom of the horizontal end of the bracket 2, and the output shaft of the first driving member 4 is coaxially fixedly connected to the screw rod 5 by bolts, and the nut seat 6 is sleeved on the screw rod 5 and threadedly connected to the screw rod 5; one end of the connecting rod 3 away from the nut seat 6 is respectively located in the slide groove 14 adjacent to it and vertically slides with the slide groove 14.

[0038] The grinding assembly includes a sliding rod 11, on the upper part of which a motor (not shown) is embedded and installed. The model of the motor is preferably 37GB-3530, and the output shaft of the motor is coaxially fixed with a grinding roller 13 by bolts; an I-shaped groove 10 is opened on the top of the base plate 1, and the sliding rod 11 is located in the I-shaped groove 10 and slides with the I-shaped groove 10.

[0039] In this embodiment, the first driving member 4 and the second driving member 9 are both forward and reverse motors, and the model of the forward and reverse motors is preferably 5RK60GN-CF.

[0040] The specific implementation process is as follows:

[0041] When in use, iron blocks 17 are installed on the top of the four corners of the PCB board in advance. Figure 3 As shown, the PCB board is then placed on the horizontal plate 16; the pressure sensor senses the pressure of the PCB board and transmits the information to the controller; the controller controls the four cameras to start based on the information, and the cameras respectively shoot the pictures in front of them, and transmit the captured images to the controller; since there is only one grinding roller 13, when a camera shoots the grinding roller 13, it means that the grinding roller 13 is located in front of the camera, and the controller controls the two electromagnets on the same side of the camera to start based on the information, and the two electromagnets adsorb the bottom of the adjacent iron block 17, and the thickness of the electromagnet is the same as the length of the iron block 17 extending out of the PCB board, so that the side wall of the PCB board can be flush with the side wall of the horizontal plate 16, and the side wall of the PCB board is flush with the side wall of the horizontal plate 16 under the adsorption effect of the electromagnet and the iron block 17, which is convenient for subsequent grinding.

[0042] Then start the first driving member 4, which drives the screw rod 5 to rotate. Under the limiting effect of the slide slot 14, when the screw rod 5 rotates, the nut seat 6, the connecting rod 3, the inclined rod 7 and the pressure plate 8 move downward until they press the PCB board; at this time, the user can slide the slide rod 11 in the I-shaped groove 10 to make the grinding roller 13 contact with the side wall of the PCB board; start the motor, and the motor drives the grinding roller 13 to rotate, and the grinding roller 13 is used to grind the side wall of the PCB board.

[0043] When the side wall of the PCB board is polished, the slide bar 11 is slid backward in the I-shaped groove 10 to keep a certain distance between the slide bar 11 and the cross plate 16; then the first driving member 4 is started to rotate in the opposite direction. Under the limiting action of the slide slot 14, when the screw 5 rotates, the nut seat 6, the connecting rod 3, the inclined rod 7 and the pressing plate 8 move upward and away from the PCB board; then the second driving member 9 is started, and the second driving member 9 drives the cross plate 16 to rotate, and the other side of the cross plate 16 and the PCB board rotates to the front of the polishing roller 13. At this time, the camera takes a picture of the front picture again and transmits the captured image to the controller. When the other camera takes a picture of the polishing roller 13, it means that the polishing roller 13 is located in front of the camera. Based on this information, the controller controls the two electromagnets on the same side of the camera to start, and the two electromagnets adsorb the bottom of the iron block 17 adjacent to them. The side wall of the PCB board is flush with the side wall of the cross plate 16 under the adsorption action of the electromagnet and the iron block 17, which is convenient for subsequent polishing; the polishing steps of other side walls are the same.

[0044] Embodiment 2

[0045] The difference from the above embodiment is that a baffle is welded to the end of the screw rod 5 away from the first driving member 4 .

[0046] The specific implementation process is as follows: since the nut seat 6 will move up and down on the screw rod 5, a baffle is provided to prevent the nut seat 6 from detaching from the screw rod 5 when moving downward. The baffle can limit the nut seat 6 when moving downward to prevent the nut seat 6 from moving excessively downward and detaching from the screw rod 5.

[0047] Embodiment 3

[0048] The difference from the above embodiment is that a slide rail is installed in the I-shaped groove 10, and the slide rod 11 slides in the I-shaped groove 10 through the slide rail.

[0049] The specific implementation process is as follows: the setting of the slide rail facilitates the slide rod 11 to move flexibly in the I-shaped groove 10.

[0050] Embodiment 4

[0051] The difference from the above embodiment is that a handle 12 is welded on the side wall of the slide bar 11 .

[0052] The specific implementation process is as follows: the user can drive the slide bar 11 to move by holding the handle 12 . The setting of the handle 12 increases the stability of the user when sliding the slide bar 11 , and it is more convenient to hold the slide bar 11 .

[0053] Embodiment 5

[0054] The difference from the above embodiment is that a rubber pad is bonded and fixed to the bottom of the pressing plate 8 .

[0055] The specific implementation process is as follows: the rubber pad has a certain elasticity. When the pressing plate 8 presses the PCB board, the rubber pad can buffer the pressing force to a certain extent to prevent the pressing plate 8 from pressing the PCB board too hard and thus causing damage to the PCB board.

[0056] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A PCB board structure polishing device, characterized in that: It includes a controller and a base plate, and a "ㄇ"-shaped bracket is fixedly connected to the base plate; A second driving member is installed on the top of the bottom plate; a horizontal plate for placing a PCB board is coaxially fixedly connected to the top of the second driving member; a plurality of cameras are installed on the side walls of the horizontal plate, and the cameras are electrically connected to the controller; electromagnets are installed at both ends of the upper part of the side walls of the horizontal plate, and the electromagnets are electrically connected to the controller; A polishing assembly for polishing the PCB is provided on the bottom plate; a pressing assembly for fixing the PCB is provided above the horizontal plate; a pressure sensor is installed on the top of the horizontal plate, and the pressure sensor is electrically connected to the controller.

2. The PCB board structure polishing device according to claim 1, characterized in that: The pressing assembly includes a nut seat, and connecting rods are symmetrically fixedly connected on both sides of the nut seat, and the ends of the connecting rods away from the nut seat are slidingly matched with the vertical ends of the adjacent brackets; an oblique rod is fixedly connected to the outer wall of the nut seat along its circumference; and a pressure plate is fixedly connected to the ends of the oblique rods away from the nut seat.

3. The PCB board structure polishing device according to claim 2, characterized in that: There are sliding grooves on the side walls facing the vertical ends of the bracket; a first driving member is embedded and installed at the bottom of the horizontal end of the bracket, and the output shaft of the first driving member is coaxially fixedly connected with a screw rod, and the nut seat is sleeved on the screw rod and threadedly connected to the screw rod; the end of the connecting rod away from the nut seat is respectively located in the sliding groove adjacent to it and vertically slides with the sliding groove.

4. The PCB board structure polishing device according to claim 3, characterized in that: One end of the screw rod away from the first driving member is fixedly connected with a baffle.

5. The PCB board structure polishing device according to claim 4, characterized in that: The grinding assembly includes a slide bar, a motor is embedded in the upper part of the slide bar, and the output shaft of the motor is coaxially fixedly connected with the grinding roller; an I-shaped groove is opened on the top of the base plate, and the slide bar is located in the I-shaped groove and slidably cooperates with the I-shaped groove.

6. The PCB board structure polishing device according to claim 5, characterized in that: A slide rail is installed in the I-shaped groove, and the slide bar slides in the I-shaped groove through the slide rail.

7. The PCB board structure polishing device according to claim 6, characterized in that: A handle is fixedly connected to the side wall of the slide bar.

8. The PCB board structure polishing device according to claim 7, characterized in that: The bottom of the pressing plate is fixedly connected with a rubber pad.

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