Circuit board edge grinding machine

Abstract

The utility model relates to a circuit board edge grinding machine, which belongs to the technical field of circuit board processing and comprises a box body, a mounting plate is fixedly connected in the box body, two gears are rotatably connected in the mounting plate, and a grinding component is arranged in the box body. According to the circuit board edge grinding machine, when a circuit board body is ground and placed in a movable plate, a second electric push rod is started to drive a clamping plate to clamp and limit the circuit board body, then a motor is started to drive two gears to conduct meshing transmission, and two grinding blocks are driven by the gears to rotate; then a first electric push rod is started to drive a movable plate to get close to polishing blocks, a sliding block slides on the outer surface of a guide plate, and the left side and the right side of the circuit board body make contact with the outer surfaces of the two polishing blocks for polishing and chamfering, so that the polished surface is smoother, burrs are removed more thoroughly, and the production efficiency is improved. The efficiency of polishing two edges at one time is higher, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically a circuit board edge grinding machine. Background Technology

[0002] After the printed circuit board is cut and sheared, burrs will be generated on the edge of the board. As a result, the finished printed circuit board will have reduced product quality due to the presence of burrs. Burrs can easily cause injury to personnel who touch them during the production process, and burrs can also pose certain quality risks in subsequent printed circuit board processing. Therefore, it is necessary to grind the edges of the circuit board.

[0003] According to Chinese patent CN221111055U, a circuit board edge grinding machine is described. The position of the suction cup is finely adjusted based on the specific model of the circuit board to be ground. The specific operation method involves starting a first servo motor to drive a first threaded rod, which in turn moves a first internal threaded block. A lower extension block slides within a first through groove. The position of the suction cup is then finely adjusted, and the circuit board blank to be ground is placed inside an L-shaped plate, ideally at right angles. An electric telescopic rod is then activated to push a slider that slides obliquely within a groove, bringing the circuit board close to the grinding rod. Upon contact, an additional point of force is applied, even if the board was not originally aligned at right angles. This will also cause the L-board and the left side of the circuit board to fit together. At this time, the starting cylinder extends, the suction cup picks up the circuit board, the second servo motor is started to drive the second threaded rod to move the second internal threaded block back and forth, the guide block slides in the guide groove, the grinding rod moves back and forth to grind one side of the circuit board flat, then the L-board retracts, the grinding rod moves to a position where it does not obstruct, the stepper motor rotates, the electronically controlled pressure relief valve is activated, and the circuit board falls down. At this time, the approximate position of the next side to be ground is correct, but there will be a deviation. The grinding rod returns to the initial position, the L-board is pushed over again, and the above steps are repeated until all four sides are ground flat.

[0004] When grinding the edges of the circuit board, the above-mentioned device can only grind one side at a time, and the grinding rod is flush with the circuit board during grinding, which does not have the function of chamfering, thus reducing the efficiency of grinding work. Therefore, a circuit board edge grinding machine is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a circuit board edge grinding machine that allows for simultaneous grinding of two circuit boards, saving time and improving work efficiency. It solves the problems of only being able to grind one side at a time, and the grinding rods not being able to be flush with the circuit board during grinding, thus reducing grinding efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit board edge grinding machine, including a housing, an installation plate fixedly connected inside the housing, two gears rotatably connected inside the installation plate, and a grinding assembly provided inside the housing;

[0007] The grinding assembly includes a motor, which is fixedly connected to the top of the mounting plate. One end of the motor's output shaft is fixedly connected to the top of the left gear. Both gears have detachable connecting cylinders at their bottoms, and grinding blocks are fixedly connected to the bottoms of both connecting cylinders. A first electric push rod is fixedly connected to the front of the housing. A movable plate is fixedly connected to the telescopic end of the first electric push rod. A second electric push rod is fixedly connected to the top of the movable plate. A clamping plate is fixedly connected to the telescopic end of the second electric push rod. A sliding block is fixedly connected to the bottom of the movable plate. A guide plate is fixedly connected to the inner wall of the housing.

[0008] Furthermore, observation windows are provided on the inner walls of both the left and right sides of the box, a protective cover is hinged to the top of the box, a guide plate is fixedly connected inside the box, and a collection box is provided at the bottom of the guide plate.

[0009] Furthermore, the mounting plate has an internal mounting cavity, and both gears rotate within the mounting plate by rotating the cavity. Both connecting cylinders are threaded with bolts, and both connecting cylinders are detachably connected to the bottom of the two gears by bolts.

[0010] Furthermore, the cross-sectional shape of both grinding blocks is T-shaped, and the internal shape of the movable plate is C-shaped, with the circuit board body placed inside.

[0011] Furthermore, a rubber pad is fixedly connected to the bottom of the clamping plate, and an anti-slip pad is installed inside the movable plate.

[0012] Furthermore, a V-shaped groove is provided inside the sliding block, and the sliding block slides on the outer surface of the guide plate through the V-shaped groove.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. This circuit board edge grinding machine, when the circuit board body is being ground and placed inside the movable plate, activates the second electric push rod to drive the clamping plate to clamp and limit the circuit board body. Then, the motor drives two gears to mesh and transmit power. The two grinding blocks rotate under the drive of the gears. Then, activate the first electric push rod to drive the movable plate to move closer to the grinding blocks. The sliding block slides on the outer surface of the guide plate. The left and right sides of the circuit board body contact the outer surfaces of the two grinding blocks to grind and chamfer, thereby achieving a smoother grinding surface, cleaner burr removal, and higher efficiency by grinding two edges at once, making it more practical.

[0015] 2. This PCB edge grinding machine, with its T-shaped cross-sections of the two grinding blocks, effectively chamfers the edges of the PCB body during deburring, thus reducing subsequent processing steps and saving processing time. By incorporating a guide plate and a collection box, debris generated during deburring is collected in the collection box for unified treatment, minimizing environmental pollution. Attached Figure Description

[0016] Figure 1 This is a main sectional view of the structure of this utility model;

[0017] Figure 2 This is a partial top view of the structure of this utility model;

[0018] Figure 3 This is a right sectional view of the structure of this utility model;

[0019] Figure 4 This is a three-dimensional view of the structure of this utility model.

[0020] In the diagram: 1. Box body; 2. Mounting plate; 3. Gear; 4. Motor; 5. Connecting cylinder; 6. Grinding block; 7. First electric push rod; 8. Movable plate; 9. Second electric push rod; 10. Clamping plate; 11. Circuit board body; 12. Sliding block; 13. Guide plate; 14. Flow guide plate; 15. Collection box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4The circuit board edge grinding machine in this embodiment includes a housing 1. Observation windows are provided on the inner walls of both the left and right sides of the housing 1. A protective cover is hinged to the top of the housing 1. A guide plate 14 is fixedly connected inside the housing 1. A collection box 15 is provided at the bottom of the guide plate 14.

[0023] The housing 1 is fixedly connected to the mounting plate 2. The mounting plate 2 is rotatably connected to two gears 3. The mounting plate 2 has an installation cavity. Both gears 3 rotate inside the mounting plate 2 through the rotation cavity.

[0024] The housing 1 is equipped with a grinding assembly; the grinding assembly includes a motor 4, which is fixedly connected to the top of the mounting plate 1. One end of the output shaft of the motor 2 is fixedly connected to the top of the left gear 3. Both gears 3 are detachably connected to the bottom of a connecting cylinder 5. Both connecting cylinders 5 are threaded with bolts inside. Both connecting cylinders 5 are detachably connected to the bottom of the two gears 3 by bolts.

[0025] A grinding block 6 is fixedly connected to the bottom of each of the two connecting cylinders 5. A first electric push rod 7 is fixedly connected to the front of the housing 1. A movable plate 8 is fixedly connected to the telescopic end of the first electric push rod 7. An anti-slip pad is installed inside the movable plate 8. The internal shape of the movable plate 8 is C-shaped, and the circuit board body 11 is placed inside it.

[0026] A second electric push rod 9 is fixedly connected to the top of the movable plate 8. A clamping plate 10 is fixedly connected to the telescopic end of the second electric push rod 9. A rubber pad is fixedly connected to the bottom of the clamping plate 10. A sliding block 12 is fixedly connected to the bottom of the movable plate 8. A guide plate 13 is fixedly connected to the inner wall of the box 1. A V-shaped groove is opened inside the sliding block 12. The sliding block 12 slides on the outer surface of the guide plate 13 through the V-shaped groove.

[0027] In this embodiment, since the cross-sectional shape of the two grinding blocks 6 is T-shaped, the circuit board body 11 can be chamfered when grinding the edge burrs, thereby reducing the subsequent processing flow and further saving processing time.

[0028] In this embodiment, by setting the guide plate 14 and the collection box 15, the debris generated during the burr removal process can be collected into the interior of the collection box 15 via the guide plate 14 and then uniformly processed, reducing pollution to the surrounding environment.

[0029] In this embodiment, by providing an anti-slip pad inside the movable plate 8 and a rubber pad at the bottom of the clamping plate 10, the combination of the rubber pad and the anti-slip pad can minimize the possibility of the circuit board body 11 becoming loose or being clamped when it is being fixed.

[0030] The working principle of the above embodiments is as follows:

[0031] This circuit board edge grinding machine, when the circuit board body 11 is being ground and placed inside the movable plate 8, activates the second electric push rod 9 to drive the clamping plate 10 to clamp and limit the circuit board body 11. Then, the motor 4 is activated to drive the two gears 3 to mesh and transmit power. The two grinding blocks 6 rotate under the drive of the gears 3. Then, the first electric push rod 7 is activated to drive the movable plate 8 to move closer to the grinding blocks 6. The sliding block 12 slides on the outer surface of the guide plate 13. The left and right sides of the circuit board body 11 contact the outer surfaces of the two grinding blocks 6 to grind and chamfer, thereby achieving a smoother ground surface, cleaner burr removal, and higher efficiency in grinding two edges at once, making it more practical.

[0032] It should be noted that all standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board edging machine comprising a housing (1), characterized in that: The box (1) is fixedly connected to the inside of the mounting plate (2), and the mounting plate (2) is rotatably connected to two gears (3). The box (1) is equipped with a grinding component. The grinding assembly includes a motor (4), which is fixedly connected to the top of the mounting plate (2). One end of the output shaft of the motor (4) is fixedly connected to the top of the left gear (3). Both gears (3) are detachably connected to a connecting cylinder (5). Both connecting cylinders (5) are fixedly connected to a grinding block (6). The front of the housing (1) is fixedly connected to a first electric push rod (7). The telescopic end of the first electric push rod (7) is fixedly connected to a movable plate (8). The top of the movable plate (8) is fixedly connected to a second electric push rod (9). The telescopic end of the second electric push rod (9) is fixedly connected to a clamping plate (10). The bottom of the movable plate (8) is fixedly connected to a sliding block (12). The inner wall of the housing (1) is fixedly connected to a guide plate (13).

2. The circuit board edge grinding machine according to claim 1, characterized in that: The inner walls of the left and right sides of the box (1) are provided with observation windows. The top of the box (1) is hinged with a protective cover plate. The inside of the box (1) is fixedly connected with a flow guide plate (14). A collection box (15) is provided at the bottom of the flow guide plate (14).

3. The circuit board edge grinding machine according to claim 1, characterized in that: The mounting plate (2) has an internal mounting cavity. Both gears (3) rotate inside the mounting plate (2) by rotating the cavity. Both connecting cylinders (5) are threaded with bolts. Both connecting cylinders (5) are detachably connected to the bottom of the two gears (3) by bolts.

4. The circuit board edge grinding machine according to claim 1, characterized in that: The two grinding blocks (6) have T-shaped cross-sections, and the movable plate (8) has a C-shaped interior, inside which the circuit board body (11) is placed.

5. A circuit board edge grinding machine according to claim 1, characterized in that: A rubber pad is fixedly connected to the bottom of the clamping plate (10), and an anti-slip pad is installed inside the movable plate (8).

6. A circuit board edge grinding machine according to claim 1, characterized in that: The sliding block (12) has a V-shaped groove inside, and the sliding block (12) slides on the outer surface of the guide plate (13) through the V-shaped groove.

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