Board grinding device for PCB production

Abstract

The utility model relates to the technical field of PCB (printed circuit board) production, and discloses a board grinding device for PCB production, which comprises a machine body, a PCB, a rotating disk mounted on the machine body, a pneumatic sucker fixedly mounted on a positioning groove, and a clamping component for positioning the PCB. According to the board grinding device for PCB production, a PCB enters the position between the fixed clamping block and the movable clamping block through the chamfer, the distance between the fixed clamping block and the movable clamping block is detected through the distance measuring instrument, so that the width size of the PCB is determined, meanwhile, the movable clamping block is pushed to slide in the limiting groove through the limiting block, and the PCB is ground. According to the PCB polishing device, the fixed clamping block and the movable clamping block are arranged, the telescopic spring is driven to stretch and deform, the PCB can be clamped and fixed between the fixed clamping block and the movable clamping block under the counter-acting force of the telescopic spring, after the PCB is positioned and installed and the position of the PCB is fixed, the polishing head can conveniently confirm the position of the PCB and polish the PCB, the product precision is guaranteed, and the polishing precision of the PCB and the yield of the PCB are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production, in particular to a plate grinding device for PCB board production. Background Art

[0002] PCB board, whose Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Because it is made by electronic printing technology, it is called a "printed" circuit board. When PCB boards are produced, they need to be polished to eliminate burrs on the surface of the PCB boards. At the same time, polishing can more accurately ensure the dimensional accuracy of the PCB boards.

[0003] The patent with application number CN202021657170.4 provides an edge grinding device for PCB board production and processing, including a device body, a support frame is fixedly installed at the four corners of the bottom outer surface of the device body, a base is fixedly installed on the bottom outer surface of the support frame, the bottom outer surface area of ​​the base is larger than the bottom outer surface area of ​​the support frame, a hinge is rotatably installed at the left end of the front outer surface of the device body, a front cover is fixedly installed on the right outer surface of the hinge, a slag collecting trough is slidably installed on the bottom inner surface of the device body, a processing chamber is fixedly installed on the top outer surface of the slag collecting trough, a slide rail is fixedly installed on the top outer surface of the processing chamber, the top outer surface of the slide rail and the top inner surface of the device body are mutually attached, and a first rotating shaft is rotatably installed at the central position of the left inner surface of the processing chamber. The utility model can realize the grinding of the edge of the PCB board, eliminate the burrs and uneven places on the edge of the PCB board, and ensure the subsequent use of the PCB board.

[0004] However, the application does not explain how to position the center of the PCB board by using the first fixed suction cup and the second fixed suction cup, resulting in different polishing precision of other edges of the PCB board, resulting in a decrease in the yield rate of the PCB board after polishing.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a grinding device for PCB board production which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the utility model, the following technical scheme is adopted: comprising: a machine body, a PCB board, a rotating disk installed on the machine body, a positioning groove provided on the rotating disk, a pneumatic suction cup fixedly installed on the positioning groove, and a clamping assembly for positioning the PCB board;

[0008] The clamping assembly includes: a fixed block, a fixed clamping block fixedly mounted on the fixed block, a limiting groove provided on the fixed block, a limiting block slidably connected to the limiting groove, a movable clamping block fixedly connected to the limiting block, and a positioning block fixedly mounted on the rotating disk.

[0009] Furthermore, the clamping assembly also includes: a fixed sleeve rod fixedly connected to the rotating disk, a slide groove provided on the fixed sleeve rod, a return spring fixedly installed on the slide groove, and a telescopic slide rod fixedly connected to the return spring.

[0010] Furthermore, one end of the telescopic slide rod is fixedly connected to the fixed block, a telescopic spring is fixedly connected to the surface of the limiting block, and one end of the telescopic spring is fixedly connected to the inner wall of the limiting groove.

[0011] Furthermore, surfaces of the fixed clamp block and the movable clamp block are both provided with chamfers, and a PCB board is provided between the fixed clamp block and the movable clamp block.

[0012] Furthermore, a three-axis movable module is installed on the machine body, and a grinding head is installed on the three-axis movable module.

[0013] Furthermore, it also includes:

[0014] An input module for inputting product information, a processing module for storing and processing the product information, and a control module for controlling the replacement of the grinding head according to the result of the processing module; the input module, the processing module and the control module are controlled and connected.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a grinding device for PCB board production, the PCB board enters between the fixed clamp block and the movable clamp block through chamfering, the rangefinder detects the distance between the fixed clamp block and the movable clamp block, thereby confirming the width size of the PCB board, and at the same time, pushes the movable clamp block to slide inside the limit groove through the limit block, and drives the telescopic spring to stretch and deform, under the reaction force of the telescopic spring, the PCB board can be clamped and fixed between the fixed clamp block and the movable clamp block, completing the positioning and installation of the PCB board, after the position of the PCB board is fixed, it is convenient for the grinding head to confirm the position of the PCB board and grind the PCB board, which is beneficial to ensuring product accuracy and improving the grinding accuracy of the PCB board and the yield rate of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1This is a schematic diagram of the structure of a grinding device for PCB board production according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the three-axis moving module and the grinding head cooperating with each other in a grinding device for PCB board production according to the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the positioning groove and the pneumatic suction cup cooperating with each other in a plate grinding device for PCB board production according to the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed block and the movable clamping block cooperating with each other in a grinding device for PCB board production according to the utility model;

[0021] Figure 5 The utility model is a grinding plate device for PCB board production Figure 4 The enlarged structural diagram at A in the middle;

[0022] Figure 6 The utility model is a grinding plate device for PCB board production Figure 4 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. Machine body; 2. Three-axis moving module; 3. Grinding head; 4. Rotating disk; 5. Positioning slot; 6. Pneumatic suction cup; 7. Clamping assembly; 71. Positioning block; 72. Fixed sleeve rod; 73. Slide slot; 74. Reset spring; 75. Telescopic slide rod; 76. Fixed block; 77. Fixed clamping block; 78. Limiting slot; 79. Limiting block; 710. Telescopic spring; 711. Movable clamping block; 712. Chamfer; 8. PCB board. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0025] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] like Figures 1 to 6 As shown, the utility model is a grinding device for PCB board production, comprising: a body 1, a PCB board 8, a rotating disk 4 installed on the body 1, the rotating disk 4 is divided into three groups of areas, a grinding area for grinding the PCB board 8, a loading area for loading the PCB board 8, and a switching area for turning the direction of the PCB board 8, a positioning groove 5 is provided on the rotating disk 4, a pneumatic suction cup 6 fixedly installed on the positioning groove 5, the pneumatic suction cup 6 is arranged inside the positioning groove 5, and can protect the pneumatic suction cup 6 to a certain extent, and a clamping component 7 for positioning the PCB board 8, the clamping component 7 can clamp and position the PCB board 8 to ensure the grinding accuracy of the PCB board 8.

[0027] The clamping assembly 7 includes: a fixed block 76, a fixed clamping block 77 fixedly mounted on the fixed block 76, after the PCB board 8 is installed, one side surface of the PCB board 8 contacts the side surface of the fixed clamping block 77 and the surface of the fixed block 76, so as to confirm that the PCB board 8 is clamped in place, a limiting groove 78 is provided on the fixed block 76, a limiting block 79 slidably connected to the limiting groove 78, a movable clamping block 711 fixedly connected to the limiting block 79, the surfaces of the fixed clamping block 77 and the movable clamping block 711 are both provided with chamfers 712, a PCB board 8 is arranged between the fixed clamping block 77 and the movable clamping block 711, a telescopic spring 710 is fixedly connected to the surface of the limiting block 79, one side of the telescopic spring 710 The end is fixedly connected to the inner wall of the limiting groove 78, and the PCB board 8 enters between the fixed clamp block 77 and the movable clamp block 711 through the chamfer 712. At the same time, the movable clamp block 711 is pushed to slide inside the limiting groove 78 through the limiting block 79, and the telescopic spring 710 is driven to stretch and deform. Under the reaction force of the telescopic spring 710, the PCB board 8 can be clamped and fixed between the fixed clamp block 77 and the movable clamp block 711, and the positioning and installation of the PCB board 8 is completed. After the position of the PCB board 8 is fixed, it is convenient for the grinding head 3 to confirm the position of the PCB board 8 and grind the PCB board 8, which is beneficial to ensure the product accuracy and improve the grinding accuracy of the PCB board 8 and the yield rate of the PCB board 8.

[0028] The clamping assembly 7 also includes: a fixed sleeve rod 72 fixedly connected to the rotating disk 4, a slide groove 73 provided on the fixed sleeve rod 72, a return spring 74 fixedly installed on the slide groove 73, a telescopic slide rod 75 fixedly connected to the return spring 74, and a positioning block 71 fixedly installed on the rotating disk 4. One end of the telescopic slide rod 75 is fixedly connected to the fixed block 76. After the PCB board 8 is pushed between the fixed clamping block 77 and the movable clamping block 711 and installed and fixed, the PCB board 8 can continue to be pushed, so that the sliding sleeve rod slides inside the fixed sleeve rod 72 through the slide groove 73, thereby squeezing the return spring 74, causing the return spring 74 to deform until one side of the fixed block 76 moves to the surface of the positioning block 71. At this time, the pneumatic suction cup 6 sucks the PCB board 8 to fix the position of the PCB board 8 and will not shake during the processing.

[0029] The three-axis moving module 2 installed on the machine body 1 and the grinding head 3 installed on the three-axis moving module 2 install the PCB board 8 on the surface of the rotating disk 4 through the clamping assembly 7 in the loading area, and then start the three-axis moving module 2 and the grinding head 3 to grind the PCB board 8. After the grinding is completed, the rotating disk 4 drives the PCB board 8 to move to the exchange area. At this time, the pneumatic suction nozzle stops sucking the PCB board 8, and the reset spring 74 resets to push the telescopic slide rod 75 forward, and drives the fixed block 76 and the PCB board 8 to move outward, and then the worker The operator pulls out the PCB board 8 from between the fixed clamp block 77 and the movable clamp block 711, then turns the PCB board 8 over, and inserts it back between the fixed clamp block 77 and the movable clamp block 711 and pushes the fixed block 76 to move to the side of the positioning block 71, and then the pneumatic suction cup 6 sucks the PCB board 8 again. Then, the rotating disk 4 rotates, driving the PCB board 8 to move to the polishing position to polish the unpolished area on the surface of the PCB board 8. After the polishing is completed, it moves to the loading position, and the polishing of the PCB board 8 is completed by manual unloading.

[0030] Also includes:

[0031] An input module for inputting product information, a processing module for storing and processing product information, and a control module for controlling the replacement of the grinding head 3 according to the result of the processing module; a control connection is formed between the input module, the processing module and the control module.

[0032] As a further extension of this patent:

[0033] The fixed clamp block 77 and the movable clamp block 711 are provided with a rangefinder on their surfaces for detecting the distance between them. The rangefinder is connected to the processing module for control. When the PCB board 8 is inserted between the fixed clamp block 77 and the movable clamp block 711, the rangefinder detects the distance between the fixed clamp block 77 and the movable clamp block 711 to confirm the width of the PCB board 8, and records it through the processing module. Then, the specification of the PCB board 8 is input through the input module. Then, the processing module generates the size of the current PCB board 8 that needs to be polished and the recommended polishing head based on the specification of the PCB board 8 and the distance between the position clamp block and the movable clamp block 711. The control module controls the replacement of the polishing head 3 and performs polishing on the PCB board 8. After the direction of the PCB board 8 is changed in the exchange area, the rangefinder detects the distance between the fixed clamp block 77 and the movable clamp block 711 again. The processing module detects whether the size of the PCB board 8 after polishing is qualified, thereby achieving the purpose of precise polishing and improving the yield rate.

[0034] Working principle:

[0035] The PCB board 8 enters between the fixed clamp block 77 and the movable clamp block 711 through the chamfer 712, and at the same time, the movable clamp block 711 is pushed to slide inside the limit groove 78 through the limit block 79, and the telescopic spring 710 is stretched and deformed. Under the reaction force of the telescopic spring 710, the PCB board 8 can be clamped and fixed between the fixed clamp block 77 and the movable clamp block 711, completing the positioning and installation of the PCB board 8, and then the PCB board 8 is further pushed, so that the sliding sleeve rod slides inside the fixed sleeve rod 72 through the sliding groove 73, thereby squeezing the return spring 74 and deforming the return spring 74 until one side of the fixed block 76 moves to the surface of the positioning block 71. At this time, the pneumatic suction cup 6 sucks the PCB board 8, so that the position of the PCB board 8 is fixed and will not shake during the processing. At the same time, the rangefinder detects the distance between the fixed clamp block 77 and the movable clamp block 711, thereby confirming the width size of the PCB board 8, so as to accurately confirm the size that needs to be polished.

[0036] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A grinding device for PCB production, characterized in that: include: A machine body, a PCB board, a rotating disk mounted on the machine body, a positioning groove provided on the rotating disk, a pneumatic suction cup fixedly mounted on the positioning groove, and a clamping assembly for positioning the PCB board; The clamping assembly includes: a fixed block, a fixed clamping block fixedly mounted on the fixed block, a limiting groove provided on the fixed block, a limiting block slidably connected to the limiting groove, a movable clamping block fixedly connected to the limiting block, and a positioning block fixedly mounted on the rotating disk.

2. A grinding device for PCB production as claimed in claim 1, characterized in that: The clamping assembly also includes: a fixed sleeve rod fixedly connected to the rotating disk, a slide groove provided on the fixed sleeve rod, a return spring fixedly installed on the slide groove, and a telescopic slide rod fixedly connected to the return spring.

3. A grinding device for PCB production as claimed in claim 2, characterized in that: One end of the telescopic slide rod is fixedly connected to the fixed block, a telescopic spring is fixedly connected to the surface of the limiting block, and one end of the telescopic spring is fixedly connected to the inner wall of the limiting groove.

4. A grinding device for PCB production as claimed in claim 1, characterized in that: The surfaces of the fixed clamp block and the movable clamp block are both provided with chamfers, and a PCB board is provided between the fixed clamp block and the movable clamp block.

5. A grinding device for PCB production as claimed in claim 1, characterized in that: A three-axis moving module is installed on the machine body, and a grinding head is installed on the three-axis moving module.

6. A grinding device for PCB production as claimed in claim 1, characterized in that: Also includes: An input module for inputting product information, a processing module for storing and processing the product information, and a control module for controlling the replacement of the grinding head according to the result of the processing module; the input module, the processing module and the control module are controlled and connected.

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