Surface polishing device for printed circuit board processing

Abstract

The utility model discloses a surface polishing device for printed circuit board processing, which comprises a base, a movable table is arranged above the base, the movable table and the base are in sliding limit, and a clamping table is mounted in the movable table; the driving seat is arranged above the clamping table, a first servo motor is fixedly installed at the upper end of the driving seat, a rotating shaft is installed on an output shaft of the first servo motor, a grinding wheel is fixedly installed at the bottom of the rotating shaft, and a driving bevel gear is fixedly installed at the end, located in the driving seat, of the rotating shaft; a driven bevel gear is mounted on one side of the driving bevel gear, and the driven bevel gear is in meshed connection with the driving bevel gear; and the supporting frame is fixedly arranged on one side between the base and the driving seat, belt wheels are rotationally installed on the upper portion and the lower portion of the interior of the supporting frame, a belt is installed between the belt wheels, and the grinding device can achieve comprehensiveness of surface grinding while the requirement for flexible movement of the circuit board is met.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a surface grinding device for printed circuit board processing. Background Technique

[0002] The surface grinding device for printed circuit board processing is a special equipment used for grinding the surface of printed circuit boards (PCBs). The device usually includes multiple key components, such as a grinding component, a displacement mechanism, a workbench surface, etc. During the grinding process, the device controls the movement of the grinding component through the displacement mechanism to achieve precise grinding of the surface of the printed circuit board. The grinding component is usually equipped with appropriate grinding tools, such as grinding wheels or abrasive belts, to remove uneven parts or oxide layers on the surface, improve the flatness and conductivity of the circuit board. The surface grinding device for printed circuit board processing plays an important role in the field of electronic manufacturing, helps to improve the quality and performance of printed circuit boards, and promotes the reliability and stability of electronic products.

[0003] For example, the Chinese authorized patent "A Surface Grinding Device for Printed Circuit Board Processing" with the publication number CN214817364U includes a bottom frame. The top of the bottom frame is movably connected with a workbench through a connecting bearing. A placing groove is opened at the top of the workbench. A double-headed screw rod is arranged in the inner cavity of the placing groove. Threaded sleeves are sleeved on both sides of the surface of the double-headed screw rod. A clamp is fixedly connected to the top of the threaded sleeve. By setting a stepping motor, an angle sensor, a workbench, a controller, an elastic cleaning brush, a driving motor, a mounting plate, a hydraulic cylinder, an electric grinding machine, a telescopic hose, a blower, a water storage tank, an air duct, a double-headed screw rod, a clamp, a threaded sleeve and a wind guiding head and using them in cooperation.

[0004] Although the above-mentioned prior art can achieve the grinding of the circuit board surface, it cannot achieve the comprehensiveness of surface grinding on the premise of satisfying the flexible movement of the circuit board. Therefore, it does not meet the existing requirements. For this reason, we propose a surface grinding device for printed circuit board processing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a surface grinding device for printed circuit board processing to solve the problem that the grinding device cannot achieve the comprehensiveness of surface grinding on the premise of satisfying the flexible movement of the circuit board as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A surface grinding device for printed circuit board processing, including a base, an activity table is arranged above the base, and the activity table is slidably limited to the base. A clamping table is installed inside the activity table, and the clamping table is slidably limited to the activity table; It also includes:

[0007] The driving seat is arranged above the clamping table. A first servo motor is fixedly installed at the upper end of the driving seat. The output shaft of the first servo motor is installed with a rotating shaft, and the rotating shaft is rotatably connected to the driving seat. A grinding wheel is fixedly installed at the bottom of the rotating shaft. One end of the rotating shaft located inside the driving seat is fixedly installed with a driving bevel gear. A driven bevel gear is installed on one side of the driving bevel gear, and the driven bevel gear is meshed with the driving bevel gear;

[0008] The support frame is fixedly arranged on one side between the base and the driving seat. Pulley wheels are rotatably installed at the upper and lower parts inside the support frame, and a belt is installed between the pulley wheels.

[0009] Preferably, a screw rod is installed on one side inside the base, and the screw rod is rotatably connected to the base. A sliding block is installed on the outer part of the screw rod. The sliding block is threadedly connected to the screw rod, and the upper end of the sliding block is fixed to the bottom of the movable table. One end of the screw rod is fixedly installed with a connecting shaft, and the connecting shaft is fixed to the lower pulley wheel.

[0010] Preferably, a transmission shaft is installed on the shaft at one end of the upper pulley wheel. A reduction mechanism is installed at the other end of the transmission shaft. The input shaft of the reduction mechanism is fixed to the shaft at one end of the driven bevel gear.

[0011] Preferably, a first electric push rod is installed on one side inside the clamping table. A clamping plate is fixedly installed at the movable end of the first electric push rod.

[0012] Preferably, a guiding mechanism is arranged on the other side inside the clamping table. Transmission rollers are rotatably installed at the front and rear ends inside the guiding mechanism. A clamping conveyor belt is installed between the transmission rollers, and the clamping conveyor belt corresponds to the position of the clamping plate. A second servo motor is installed below the front transmission roller.

[0013] Preferably, support wheels are installed inside the guiding mechanism. There are at least three support wheels, and the support wheels are rotatably connected to the guiding mechanism. The support wheels are in contact with one side of the clamping conveyor belt.

[0014] Preferably, second electric push rods are installed at the four corners between the movable table and the clamping table.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. The utility model is provided with a grinding and conveying linkage mechanism. By turning on the first servo motor, its output shaft can drive the grinding wheel to rotate at a high speed through the rotating shaft, thereby realizing the grinding of the surface of the circuit board. During this process, the driving bevel gear at the upper end of the rotating shaft drives the driven bevel gear to rotate under the meshing action, and cooperates with the speed reduction mechanism to make the transmission shaft rotate. At the same time, pulley wheels are provided at one ends of the transmission shaft and the connecting shaft respectively. Driven by the belt, the connecting shaft can be driven to rotate synchronously, and then drive the screw rod to rotate. Under the friction between its external thread and the internal thread hole of the sliding block, and in cooperation with the guiding effect of the inner cavity of the base on the sliding block, the sliding block drives the movable table to move slowly towards one side, and then makes the grinding wheel form a relative displacement on the contact surface of the circuit board, completing the grinding work on the horizontal direction of the upper end surface of the circuit board. This linkage structure has high flexibility. By using the forward and reverse rotation of the first servo motor, the reciprocating movement of the grinding wheel on the surface of the circuit board can be realized, effectively improving the grinding effect.

[0017] 2. The utility model is provided with a guiding mechanism. When fixing the circuit board, place it between the clamping plate and the clamping conveyor belt. By turning on the first electric push rod, one end of the clamping plate is closely attached to the side surface of the circuit board, and cooperate with the clamping conveyor belt to fix the circuit board, which can ensure the stability of the circuit board during the grinding process. After the grinding wheel completes the processing of one horizontal direction of the circuit board, turn on the second servo motor, its output shaft drives the transmission roller to rotate, and cooperate with the tension of the other transmission roller on the clamping conveyor belt to form the movement of the clamping conveyor belt under the friction, and then can drive the circuit board to move a set distance longitudinally, cooperate with the transverse reciprocating movement of the clamping table to realize the comprehensive grinding of the circuit board. This structure can not only realize the clamping and fixing of the circuit board, but also realize the longitudinal adjustment of the circuit board during the processing, and the flexibility is further improved.

[0018] 3. The utility model installs second electric push rods at the four corners between the movable table and the clamping table. When the second electric push rods are in the contracted state, the upper end surface of the clamping table is flush with the movable table, and there is a certain gap from the grinding wheel. At this time, the placement and removal of the circuit board can be realized. After the circuit board is placed and fixed, by extending the second electric push rods, the surface of the circuit board can be brought into contact with the grinding wheel, so as to carry out the grinding work. Description of the Drawings

[0019] Figure 1 is the three-dimensional view of the utility model;

[0020] Figure 2 is the overall internal structure schematic diagram of the utility model;

[0021] Figure 3 is the internal structure schematic diagram of the guiding mechanism of the utility model;

[0022] Figure 4Top view of the upper end surface of the movable table of the present utility model.

[0023] In the figure: 1, base; 2, movable table; 3, clamping table; 4, drive seat; 5, support frame; 6, first servo motor; 7, clamping plate; 8, guiding mechanism; 9, clamping conveyor belt; 10, first electric push rod; 11, grinding wheel; 12, rotating shaft; 13, driving bevel gear; 14, transmission shaft; 15, driven bevel gear; 16, reduction mechanism; 17, pulley; 18, connecting shaft; 19, belt; 20, screw; 21, sliding block; 22, second electric push rod; 23, second servo motor; 24, driving roller; 25, supporting wheel. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a surface grinding device for printed circuit board processing, including a base 1, a movable table 2 is arranged above the base 1, and the movable table 2 is slidably limited to the base 1. A clamping table 3 is installed inside the movable table 2, and the clamping table 3 is slidably limited to the movable table 2; further includes:

[0026] A drive seat 4, which is arranged above the clamping table 3. A first servo motor 6 is fixedly installed at the upper end of the drive seat 4. The output shaft of the first servo motor 6 is installed with a rotating shaft 12, and the rotating shaft 12 is rotatably connected to the drive seat 4. A grinding wheel 11 is fixedly installed at the bottom of the rotating shaft 12. One end of the rotating shaft 12 located inside the drive seat 4 is fixedly installed with a driving bevel gear 13. A driven bevel gear 15 is installed on one side of the driving bevel gear 13, and the driven bevel gear 15 is meshed with the driving bevel gear 13;

[0027] A support frame 5, which is fixedly arranged on one side between the base 1 and the drive seat 4. Pulley 17 is rotatably installed at the upper and lower parts inside the support frame 5, and a belt 19 is installed between the pulleys 17.

[0028] Please refer to Figure 2 , a screw 20 is installed on one side inside the base 1, and the screw 20 is rotatably connected to the base 1. A sliding block 21 is installed on the outside of the screw 20. The sliding block 21 is threadedly connected to the screw 20, and the upper end of the sliding block 21 is fixed to the bottom of the movable table 2. One end of the screw 20 is fixedly installed with a connecting shaft 18, and the connecting shaft 18 is fixed to the lower pulley 17, which can realize the horizontal movement of the circuit board.

[0029] Please refer to Figure 2, the shaft at one end of the upper pulley 17 is installed with a transmission shaft 14, the other end of the transmission shaft 14 is installed with a reduction mechanism 16, the input shaft of the reduction mechanism 16 is fixed to the shaft at one end of the driven bevel gear 15, and the reduction mechanism 16 can reduce the rotational speed of the transmission shaft 14, thereby ensuring the rationality of the rotational speeds of the grinding wheel 11 and the screw 20.

[0030] Please refer to Figure 1 and Figure 2 , on one side inside the clamping table 3, a first electric push rod 10 is installed, and a clamping plate 7 is fixedly installed at the movable end of the first electric push rod 10. The clamping of the circuit board is realized by the movement of the clamping plate 7.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , on the other side inside the clamping table 3, a guiding mechanism 8 is provided. At the front and rear ends inside the guiding mechanism 8, transmission rollers 24 are rotatably installed. A clamping conveyor belt 9 is installed between the transmission rollers 24, and the clamping conveyor belt 9 corresponds to the position of the clamping plate 7. A second servo motor 23 is installed below the front transmission roller 24. This structure can not only realize the clamping and fixing of the circuit board, but also realize the longitudinal adjustment of the circuit board during the processing, and the flexibility is further improved.

[0032] Please refer to Figure 3 , inside the guiding mechanism 8, support wheels 25 are installed. There are at least three support wheels 25, and the support wheels 25 are rotatably connected to the guiding mechanism 8. The support wheels 25 are in contact with one side of the clamping conveyor belt 9 to improve the support effect on the circuit board.

[0033] Please refer to Figure 2 and Figure 4 , at the four corners between the movable table 2 and the clamping table 3, second electric push rods 22 are installed.

[0034] Working principle: When in use, when fixing the circuit board, place it between the clamping plate 7 and the clamping conveyor belt 9. By turning on the first electric push rod 10, one end of the clamping plate 7 is made to closely adhere to the side of the circuit board, and in cooperation with the clamping conveyor belt 9, the circuit board is fixed. Through the extension of the second electric push rod 22, the surface of the circuit board can be made to contact the grinding wheel 11. Turn on the first servo motor 6, and its output shaft can drive the grinding wheel 11 to rotate at a high speed through the rotating shaft 12, thereby realizing the grinding of the surface of the circuit board. During this process, the driving bevel gear 13 at the upper end of the rotating shaft 12 drives the driven bevel gear 15 to rotate under the meshing action, and in cooperation with the speed reduction mechanism 16, the transmission shaft 14 rotates. At the same time, pulley 17 is provided at one end of both the transmission shaft 14 and the connecting shaft 18. Driven by the belt 19, the connecting shaft 18 can be synchronously driven to rotate, and then the screw 20 is driven to rotate. Under the friction between its external thread and the internal thread hole of the sliding block 21, and in cooperation with the guiding action of the base 1 cavity on the sliding block 21, the sliding block 21 drives the movable table 2 to slowly move to one side, and then the grinding wheel 11 forms a relative displacement on the contact surface of the circuit board, completing the grinding work on the horizontal direction of the upper end surface of the circuit board. As the grinding of one horizontal direction of the circuit board by the grinding wheel 11 is completed, turn on the second servo motor 23, and its output shaft drives the driving roller 24 to rotate. In cooperation with the tension of the other driving roller 24 on the clamping conveyor belt 9, the clamping conveyor belt 9 moves under the friction action, and then the circuit board can be driven to move a set distance longitudinally. In cooperation with the reciprocating movement of the clamping table 3 in the horizontal direction, the overall grinding of the circuit board is realized.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A surface grinding device for printed circuit board processing, including a base (1). Above the base (1), there is a movable table (2), and the movable table (2) is slidably limited to the base (1). Inside the movable table (2), a clamping table (3) is installed, and the clamping table (3) is slidably limited to the movable table (2). It is characterized in that: It further includes: A driving seat (4), which is arranged above the clamping table (3). At the upper end of the driving seat (4), a first servo motor (6) is fixedly installed. The output shaft of the first servo motor (6) is equipped with a rotating shaft (12), and the rotating shaft (12) is rotatably connected to the driving seat (4). At the bottom of the rotating shaft (12), a grinding wheel (11) is fixedly installed. At one end of the rotating shaft (12) located inside the driving seat (4), a driving bevel gear (13) is fixedly installed. On one side of the driving bevel gear (13), a driven bevel gear (15) is installed, and the driven bevel gear (15) is meshed with the driving bevel gear (13). A support frame (5), which is fixedly arranged on one side between the base (1) and the driving seat (4). At the upper and lower parts inside the support frame (5), pulley wheels (17) are rotatably installed, and a belt (19) is installed between the pulley wheels (17).

2. The surface grinding device for printed circuit board processing according to claim 1, characterized in that: On one side inside the base (1), a screw rod (20) is installed, and the screw rod (20) is rotatably connected to the base (1). Outside the screw rod (20), a sliding block (21) is installed. The sliding block (21) is threadedly connected to the screw rod (20), and the upper end of the sliding block (21) is fixed to the bottom of the movable table (2). At one end of the screw rod (20), a connecting shaft (18) is fixedly installed, and the connecting shaft (18) is fixed to the lower pulley wheel (17).

3. The surface grinding device for printed circuit board processing according to claim 2, wherein: At one end of the shaft of the upper pulley wheel (17), a transmission shaft (14) is installed. At the other end of the transmission shaft (14), a speed reduction mechanism (16) is installed. The input shaft of the speed reduction mechanism (16) is fixed to the shaft at one end of the driven bevel gear (15).

4. A surface grinding device for printed circuit board processing according to claim 1, characterized in that: On one side inside the clamping table (3), a first electric push rod (10) is installed. The movable end of the first electric push rod (10) is fixedly installed with a clamping plate (7).

5. The surface grinding device for printed circuit board processing according to claim 4, characterized in that: On the other side inside the clamping table (3), a guiding mechanism (8) is arranged. At the front and rear ends inside the guiding mechanism (8), transmission rollers (24) are rotatably installed. A clamping conveyor belt (9) is installed between the transmission rollers (24), and the clamping conveyor belt (9) corresponds to the position of the clamping plate (7). Below the front transmission roller (24), a second servo motor (23) is installed.

6. The surface grinding device for printed circuit board processing according to claim 5, characterized in that: Inside the guiding mechanism (8), support wheels (25) are installed. There are at least three support wheels (25), and the support wheels (25) are rotatably connected to the guiding mechanism (8). The support wheels (25) are in contact with one side of the clamping conveyor belt (9).

7. The surface grinding device for printed circuit board processing according to claim 1, wherein: At the four corners between the movable table (2) and the clamping table (3), second electric push rods (22) are installed.

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