A printed circuit board surface treatment apparatus

Abstract

The utility model relates to printed circuit board processing equipment technical field, concretely is a kind of printed circuit board surface treatment device, including box, be equipped with surface treatment mechanism on the box, the surface treatment mechanism includes moving frame, moving frame is slidably connected in the box inside, the polishing roller is rotatably connected on the moving frame, the clamping fixed mechanism is equipped in the moving frame bottom, the clamping fixed mechanism includes the surface treatment frame slidably connected on moving frame, clamping groove is set up on the surface treatment frame, clamping block is slidably connected on the clamping groove. Through the box set can deburring operation and degumming operation in the same equipment, omit the disassembly after completing deburring operation and the operation of installation to degumming equipment, so as to need not to transfer printed circuit board to the degumming operation of the printed circuit board that deburring operation is completed, avoids the operation of repeated clamping fixed and taking down, improves processing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of printed circuit board processing equipment, specifically a surface treatment device for printed circuit boards. Background Technology

[0002] In the manufacturing process of printed circuit boards (PCBs), a series of surface treatment operations, such as deburring and adhesive removal, are required. Current technologies typically employ separate deburring and adhesive removal equipment, along with other devices, for this surface treatment. Therefore, during the process, workers must individually install and fix the PCBs in the deburring equipment, and after deburring, remove the PCBs from the deburring equipment and transfer them to the adhesive removal equipment for repeated installation and removal. This process is extremely cumbersome, resulting in low PCB processing efficiency. Therefore, we propose a PCB surface treatment device. Utility Model Content

[0003] The purpose of this utility model is to provide a surface treatment device for printed circuit boards, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A surface treatment device for printed circuit boards includes a housing; The housing is provided with a surface treatment mechanism, which includes a movable frame that is slidably connected inside the housing. A polishing roller is rotatably connected to the movable frame. The bottom of the movable frame is provided with a clamping and fixing mechanism, which includes a surface treatment frame that is slidably connected to the movable frame. A clamping groove is provided on the surface treatment frame, and a clamping block is slidably connected to the clamping groove.

[0005] Preferably, a bracket is fixedly connected to the housing, and an electric push rod is fixedly connected to the bracket. The output end of the electric push rod is fixedly connected to the movable frame.

[0006] Preferably, a screw is rotatably connected to the bottom end of the movable frame, and the screw passes through the surface treatment frame and engages with the inside of the surface treatment frame.

[0007] Preferably, a rack is slidably connected inside the movable frame, a transmission gear that meshes with the rack is fixedly connected to the screw, a cylinder is fixedly connected to the side of the movable frame, and the output end of the cylinder is fixedly connected to the rack.

[0008] Preferably, a motor is fixedly connected to the top of the movable frame, and a synchronous pulley is fixedly connected to the output shaft of the motor and the grinding roller, and the synchronous pulleys are driven by a synchronous belt.

[0009] Preferably, a drain pipe is fixedly connected to the bottom of the box, a filter screen is detachably connected inside the drain pipe, and a water inlet pipe and a liquid inlet pipe are fixedly connected to the top side of the box.

[0010] By employing the above technical solution, this utility model provides a surface treatment device for printed circuit boards that has at least the following beneficial effects: (1) The present invention can perform deburring and glue removal operations in the same equipment by setting the box, which eliminates the disassembly and installation to the glue removal equipment after the deburring operation is completed. Therefore, the glue removal operation can be performed on the printed circuit board after the deburring operation without transferring the printed circuit board, avoiding the repeated clamping and fixing and removal operation, and improving the processing efficiency.

[0011] (2) This utility model deburrs the printed circuit board by washing it in the cleaning water, and collects the generated debris by soaking in the cleaning water, which avoids the splashing of debris. At the same time, the cleaning water can directly clean the printed circuit board inside the box, which reduces the transfer time and improves the processing efficiency. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the box structure of this utility model.

[0013] In the diagram: 1. Housing; 2. Surface treatment mechanism; 201. Moving frame; 202. Grinding roller; 203. Screw; 205. Rack; 206. Transmission gear; 208. Synchronous pulley; 209. Synchronous belt; 210. Drain pipe; 211. Filter screen; 212. Water inlet pipe; 213. Liquid inlet pipe; 3. Clamping and fixing mechanism; 301. Surface treatment frame; 302. Clamping groove; 303. Clamping block; 4. Support; 5. Electric push rod. Detailed Implementation

[0014] 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.

[0015] A surface treatment apparatus for printed circuit boards, such as Figures 1-5 As shown, it includes a housing 1; the housing 1 is provided with a surface treatment mechanism 2, which is used to perform surface treatment operations such as deburring and removing adhesive from the printed circuit board.

[0016] Specifically, the surface treatment mechanism 2 includes a movable frame 201, which is slidably connected inside the housing 1. The movable frame 201 supports the surface treatment mechanism 2, allowing it to move up and down within the housing 1. A polishing roller 202 is rotatably connected to the movable frame 201, and the polishing roller 202 is used to polish and deburr the surface of the printed circuit board by rotating on its own.

[0017] Based on this, a clamping and fixing mechanism 3 is provided at the bottom of the movable frame 201. The clamping and fixing mechanism 3 is used to clamp and fix the printed circuit board, thereby maintaining the stability of the printed circuit board during the surface treatment process. The clamping and fixing mechanism 3 includes a surface treatment frame 301 slidably connected to the movable frame 201. The surface treatment frame 301 is used to support the clamping and fixing mechanism 3 and the printed circuit board, maintaining the stability of the printed circuit board during the cleaning process. A clamping groove 302 is provided on the surface treatment frame 301. A clamping block 303 is slidably connected to the clamping groove 302. The clamping block 303 is used to clamp and fix the printed circuit board. The clamping block 303 has an I-shaped structure, which facilitates positioning the printed circuit board in the middle of the clamping block 303. At the same time, a clamping spring is fixedly connected between the clamping block 303 and the clamping groove 302, which is used to drive the clamping block 303 to move inside the clamping groove 302.

[0018] In addition, a bracket 4 is fixedly connected to the housing 1, and an electric push rod 5 is fixedly connected to the bracket 4. The output end of the electric push rod 5 is fixedly connected to the movable frame 201. The bracket 4 is used to support the electric push rod 5, part of the surface treatment mechanism 2, and the clamping and fixing mechanism 3. The electric push rod 5 can be used to drive the movable frame 201, so that the movable frame 201 can be raised and lowered.

[0019] Furthermore, a screw 203 is rotatably connected to the bottom of the movable frame 201. The screw 203 passes through the surface treatment frame 301 and engages with it inside the surface treatment frame 301. The screw 203 and the surface treatment frame 301 cooperate to guide the movement of the surface treatment frame 301, so that the surface treatment frame 301 can only be adjusted up and down along the screw 203. At the same time, a guide rod parallel to the screw 203 is slidably connected inside the surface treatment frame 301 to guide the movement of the surface treatment frame 301, and the guide rod is fixedly connected to the movable frame 201.

[0020] Furthermore, a rack 205 is slidably connected inside the movable frame 201, and a transmission gear 206 that meshes with the rack 205 is fixedly connected to the screw 203. The rack 205 and the transmission gear 206 cooperate to drive the screw 203, causing the screw 203 to rotate and drive the surface treatment frame 301 to move up and down, thereby adjusting the position of the surface treatment frame 301. A cylinder is fixedly connected to the side of the movable frame 201, and the output end of the cylinder is fixedly connected to the rack 205. The cylinder is used to drive the rack 205 to move.

[0021] Based on this, a motor is fixedly connected to the top of the movable frame 201, and a synchronous pulley 208 is fixedly connected to the output shaft of the motor and the grinding roller 202. The synchronous pulleys 208 are driven by a synchronous belt 209. The motor is used to drive the synchronous pulleys 208 to rotate, and the rotational force is transmitted to the grinding roller 202 through the synchronous pulleys 208 and the synchronous belt 209, so that the grinding roller 202 grinds the printed circuit board.

[0022] Based on this, a drain pipe 210 is fixedly connected to the bottom of the housing 1, and the drain pipe 210 is used to discharge the liquid inside the housing 1. A filter screen 211 is detachably connected inside the drain pipe 210, and the filter screen 211 can filter the liquid inside the housing 1. A water inlet pipe 212 and a liquid inlet pipe 213 are fixedly connected to the top side of the housing 1. The water inlet pipe 212 is used to inject water into the housing 1 to clean the printed circuit board, and the liquid inlet pipe 213 is used to inject a chemical agent into the housing 1 to remove the adhesive from the printed circuit board.

[0023] In use, the printed circuit board surface treatment device of this utility model first clamps and fixes the printed circuit board on the surface treatment rack 301 above the housing 1. Then, the water inlet pipe 212 continuously injects cleaning water into the housing 1 until the set water level is reached. The electric push rod 5 drives the moving rack 201 and the surface treatment rack 301 to move continuously downward, so that the printed circuit board clamped and fixed on the surface treatment rack 301 and the grinding roller 202 on the moving rack 201 are immersed in the cleaning water. Then, the motor drives the grinding roller 202 to rotate continuously and perform continuous deburring operation on the surface of the printed circuit board. During the deburring process, the cylinder drives the rack 205 to move back and forth and drive the transmission gear 206 to rotate. The screw 203 drives the surface treatment rack 301 to move up and down repeatedly to grind different positions of the printed circuit board. Since the operation is immersed in water, on the one hand, the cleaning water can be used to absorb and collect the debris generated during the deburring process, preventing it from being dispersed into the air and forming dust. On the other hand, the cleaning water can cool the printed circuit board and reduce the heat generated by continuous friction. After the deburring operation is completed, the motor stops, and the drain pipe 210 discharges the cleaning water inside the box 1 and replenishes the cleaning water inside the box 1, or the cleaning water is filtered through the filter screen 211 and then returned to the box 1. The residual debris attached to the surface of the printed circuit board is removed through multiple cleanings.

[0024] After deburring, acid pickling and adhesive removal can be performed inside chamber 1. First, the push rod motor raises and moves the deburred printed circuit board to its initial position. Then, the cylinder drives the rack 205 to move and rotates the transmission gear 206, causing the screw 203 to drive the surface treatment frame 301 to descend continuously. The surface treatment frame 301 then moves into the chamber. At this time, the grinding roller 202 is suspended above chamber 1, and the surface treatment frame 301 is located inside chamber 1. Subsequently, swelling treatment solution, cleaning solution, strong oxidizing solution, and neutralizing solution are sequentially injected into chamber 1 to perform swelling, cleaning, oxidation removal, and neutralization operations on the residual epoxy resin on the printed circuit board.

[0025] 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 process, method, article, or apparatus.

[0026] 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 surface treatment device for printed circuit boards, comprising a housing (1), characterized in that: The housing (1) is provided with a surface treatment mechanism (2), which includes a movable frame (201) that is slidably connected inside the housing (1). A polishing roller (202) is rotatably connected to the movable frame (201). A clamping and fixing mechanism (3) is provided at the bottom of the movable frame (201). The clamping and fixing mechanism (3) includes a surface treatment frame (301) that is slidably connected to the movable frame (201). A clamping groove (302) is provided on the surface treatment frame (301), and a clamping block (303) is slidably connected to the clamping groove (302).

2. The printed circuit board surface treatment apparatus according to claim 1, characterized in that: A bracket (4) is fixedly connected to the housing (1), and an electric push rod (5) is fixedly connected to the bracket (4). The output end of the electric push rod (5) is fixedly connected to the movable frame (201).

3. The printed circuit board surface treatment apparatus according to claim 1, characterized in that: The bottom end of the movable frame (201) is rotatably connected to a screw (203), which passes through the surface treatment frame (301) and engages with the inside of the surface treatment frame (301).

4. The printed circuit board surface treatment apparatus according to claim 3, characterized in that: The movable frame (201) has a rack (205) slidably connected inside, and a transmission gear (206) that meshes with the rack (205) is fixedly connected to the screw (203). A cylinder is fixedly connected to the side of the movable frame (201), and the output end of the cylinder is fixedly connected to the rack (205).

5. The printed circuit board surface treatment apparatus according to claim 1, characterized in that: A motor is fixedly connected to the top of the mobile frame (201), and a synchronous pulley (208) is fixedly connected to the output shaft of the motor and the grinding roller (202). The synchronous pulleys (208) are driven by a synchronous belt (209).

6. The printed circuit board surface treatment apparatus according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected to a drain pipe (210), and a filter screen (211) is detachably connected inside the drain pipe (210). The top side of the box (1) is fixedly connected to a water inlet pipe (212) and a liquid inlet pipe (213).

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