PCB edge grinding device

Abstract

The utility model discloses a PCB (Printed Circuit Board) edge grinding device which comprises a base station; an L-shaped supporting plate is arranged on one side of the base table. The fixing mechanism is arranged on the base station; the fixing mechanism comprises an upper fixing plate and a lower fixing plate, the upper fixing plate is located at the bottom of the supporting plate, the upper fixing plate is driven by a first air cylinder to ascend and descend, a fixing block is arranged at the end of the supporting arm, and the upper fixing plate and the lower fixing plate can rotate through bearings; four sets of positioning plates are symmetrically welded to the outer wall of the supporting column, upper positioning holes are formed in the ends of the positioning plates, and a positioning column with lower positioning holes is arranged on the side, located on the supporting column, of the base table. The device further comprises an edge grinding mechanism. The edge grinding mechanism comprises a side plate and a housing, the housing is located on one side of the side plate, a driving wheel and a driven wheel are rotationally installed in the housing, and an abrasive belt is installed between the driving wheel and the driven wheel; and the PCB does not need to be dismounted and then fixed, so that the edge grinding efficiency of the PCB is improved.

Description

Technical Field

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

[0002] PCB, also known as printed circuit board in Chinese, is the support of electronic components and is responsible for the electrical connection between electronic components. It is an indispensable component of electronic products. Almost every electronic device, from small electronic watches and calculators to large computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, must use printed circuit boards to make electrical interconnections between various components.

[0003] In the production and processing of PCB boards, edge grinding is an indispensable link. After searching, the Chinese patent number is: CN202321831403.1 discloses a PCB board edge grinding device, including a grinding box, a first fan is fixedly installed on the top of the grinding box, a gas collecting box is fixedly connected to the bottom of the first fan, and a jet pipe is fixedly connected to the bottom of the gas collecting box at equal intervals. The utility model drives the driving rod to rotate through the motor, thereby driving the grinding roller to grind the edge of the fixed PCB board, and the debris will be discharged into the storage box through the discharge pipe for storage. At the same time, the second fan can extract the gas inside the grinding box and discharge it into the storage box through the output pipe, and the outside air will continue to flow into the grinding box to form a gas flow. The dust generated by grinding can be discharged into the storage box through the output pipe. After filtering by the filter, the gas is discharged, and the dust is stored in the storage box, thereby completing the timely cleaning and collection of the waste chips and dust generated by grinding.

[0004] In the above technical solution, when grinding the PCB edge, the PCB board is inserted into the clamping groove and fixed by the clamping plate. After grinding a single edge, the PCB board needs to be removed and replaced with another edge, which reduces the grinding efficiency of the PCB board. Therefore, we need to propose a PCB board edge grinding device. Utility Model Content

[0005] The utility model aims to provide a PCB board edge grinding device. The device has a simple structure and is easy to use. The PCB board is clamped by fixing blocks on an upper fixing plate and a lower fixing plate. After a single side edge is polished, the side edge of the PCB board can be replaced by positioning a pin at the end of different positioning plates. There is no need to remove and fix the PCB board, thereby improving the efficiency of the PCB board edge grinding process to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A PCB board edge grinding device, comprising:

[0008] abutment;

[0009] An L-shaped support plate is provided on one side of the base;

[0010] A fixing mechanism disposed on the base;

[0011] The fixing mechanism comprises an upper fixing plate and a lower fixing plate, the upper fixing plate is located at the bottom of the support plate, and the upper fixing plate is driven to rise and fall by the first cylinder, a support column is arranged at the bottom of the lower fixing plate, four groups of supporting arms are symmetrically arranged around the upper fixing plate and the lower fixing plate, and fixing blocks are arranged at the ends of the supporting arms, and the upper fixing plate and the lower fixing plate can realize rotation through bearings;

[0012] Four sets of positioning plates are symmetrically welded on the outer wall of the pillar, and upper positioning holes are opened at the ends of the positioning plates. A positioning column with a lower positioning hole is arranged on one side of the pillar on the base, and the positioning of the lower fixing plate is achieved by inserting a pin rod into the upper positioning hole and the lower positioning hole;

[0013] It also includes an edge grinding mechanism arranged on the base;

[0014] The edge grinding mechanism comprises a side plate and a cover shell, wherein the cover shell is located on one side of the side plate, a driving wheel and a driven wheel are rotatably installed inside the cover shell, and an abrasive belt is installed between the driving wheel and the driven wheel;

[0015] It also includes a telescopic mechanism for driving the sanding belt close to the PCB board.

[0016] Preferably, a lower bearing is embedded on the base, and the lower end of the support column is plugged and fixed to the inner ring of the lower bearing.

[0017] Preferably, an upper bearing is embedded on the top of the upper fixed plate, and the lower end of the piston rod of the cylinder passes through the support plate and is inserted and fixed to the inner ring of the upper bearing.

[0018] Preferably, a slot is provided in the support arm, an extension plate is slidably inserted into the slot, and the fixing block is located at the end of the extension plate.

[0019] Preferably, an adjusting screw is threadedly mounted on the top surface of the end of the support arm, a knob is provided on the upper end of the adjusting screw, and a plurality of groups of adjusting holes corresponding to the adjusting screw are equidistantly provided on the extension plate.

[0020] Preferably, a threaded sleeve is provided at the end of the extension plate, the threaded sleeve on the lower fixing plate is located at the top surface of the end of the extension plate, and the threaded sleeve on the upper fixing plate is located at the bottom surface of the end of the extension plate.

[0021] Preferably, a threaded column is installed in the internal thread of the threaded sleeve, and the fixing block is located at the end of the threaded column. The threaded column is an integrated structure made of rubber with anti-slip protrusions on the end surface.

[0022] Preferably, the telescopic mechanism comprises a second cylinder mounted on the outer wall of the side plate, and two groups of the second cylinders are provided. The piston rod ends of the second cylinders penetrate the side plate and are fixedly connected to the outer wall of the housing.

[0023] Preferably, a motor is installed on one side of the bottom of the cover shell, and the output end of the motor is drivingly connected to the lower end shaft of the driving wheel.

[0024] Preferably, mounting plates are mounted on both end side walls of the cover shell by fixing screws, baffles are arranged at the ends of the mounting plates, and two groups of baffles are symmetrically arranged in an eight-shaped shape.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The utility model installs a lower fixing plate on a base by rotation, an upper fixing plate is arranged at the bottom of the supporting plate, a first cylinder drives the upper fixing plate to rise and fall, and the upper fixing plate realizes rotation through an upper bearing, fixing blocks are arranged at the ends of the supporting arms of the upper fixing plate and the lower fixing plate, four groups of positioning plates with upper positioning holes are arranged on the outer wall of the lower fixing plate, and a positioning column with a lower positioning hole is arranged on the base, in addition, an edge grinding mechanism including a side plate and a cover shell is arranged on the base, and an abrasive belt is arranged between the driving wheel and the driven wheel in the cover shell. The device has a simple structure and is easy to use, and a PCB board is clamped by the fixing blocks on the upper fixing plate and the lower fixing plate, and after a single side edge is polished, the side edge of the PCB board is replaced by positioning the pin rod at the ends of different positioning plates, without the need to remove and fix the PCB board, thereby improving the efficiency of the edge grinding processing of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the lower fixing plate of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the upper fixing plate of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the extension plate of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the edge grinding mechanism of the utility model.

[0032] In the figure: 1. base; 2. pillar; 3. lower fixing plate; 4. lower bearing; 5. positioning plate; 6. upper positioning hole; 7. positioning column; 8. support arm; 9. extension plate; 10. slot; 11. adjusting screw; 12. adjusting hole; 13. threaded sleeve; 14. threaded column; 15. fixing block; 16. support plate; 17. first cylinder; 18. upper fixing plate; 19. upper bearing; 20. side plate; 21. second cylinder; 22. cover; 23. driving wheel; 24. driven wheel; 25. sanding belt; 26. motor; 27. mounting plate; 28. baffle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-5 , the utility model provides a technical solution:

[0035] A PCB board edge grinding device, comprising:

[0036] A base 1; an L-shaped support plate 16 is provided on one side of the base 1;

[0037] A fixing mechanism disposed on the base 1;

[0038] The fixing mechanism includes an upper fixing plate 18 and a lower fixing plate 3. The upper fixing plate 18 is located at the bottom of the support plate 16 and is driven to rise and fall by the first cylinder 17. A pillar 2 is provided at the bottom of the lower fixing plate 3. Four groups of support arms 8 are symmetrically provided around the upper fixing plate 18 and the lower fixing plate 3. The ends of the support arms 8 are provided with fixing blocks 15. The upper fixing plate 18 and the lower fixing plate 3 can both rotate through bearings. The base 1 is embedded with a lower bearing 4, and the lower end of the pillar 2 is plugged and fixed to the inner ring of the lower bearing 4. The top of the upper fixing plate 18 is embedded with an upper bearing 19, and the lower end of the piston rod of the cylinder passes through the support plate 16 and is plugged and fixed to the inner ring of the upper bearing 19.

[0039] Four sets of positioning plates 5 are symmetrically welded on the outer wall of the pillar 2. An upper positioning hole 6 is opened at the end of the positioning plate 5. A positioning column 7 with a lower positioning hole is arranged on one side of the pillar 2 on the base 1. The positioning of the lower fixing plate 3 is achieved by inserting a pin into the upper positioning hole 6 and the lower positioning hole.

[0040] It also includes an edge grinding mechanism arranged on the base 1; the edge grinding mechanism includes a side plate 20 and a cover shell 22, the cover shell 22 is located on one side of the side plate 20, a driving wheel 23 and a driven wheel 24 are rotatably installed inside the cover shell 22, and a sanding belt 25 is installed between the driving wheel 23 and the driven wheel 24; a motor 26 is installed on one side of the bottom of the cover shell 22, and the output end of the motor 26 is drivingly connected to the lower end shaft rod of the driving wheel 23.

[0041] The telescopic mechanism is also included for driving the abrasive belt 25 to approach the PCB board. The telescopic mechanism includes a second cylinder 21 mounted on the outer wall of the side plate 20, and two groups of the second cylinders 21 are provided. The piston rod end of the second cylinder 21 passes through the side plate 20 and is fixedly connected to the outer wall of the cover 22.

[0042] In actual use, the PCB board is placed on the lower fixing plate 3, and the fixing block 15 on the lower fixing plate 3 abuts against the bottom of the PCB board, and the cylinder is started to drive the upper fixing plate 18 to descend until the fixing block 15 on the upper fixing plate 18 abuts against the top of the PCB board, and the PCB board is clamped and fixed. At this time, the pin rod is inserted into the positioning column 7 on the base 1 after passing through the positioning holes at the end of one group of positioning plates 5, and one side of the PCB board faces the sanding belt 25 of the edge grinding mechanism;

[0043] The starting motor 26 drives the sanding belt 25 to work, and the second cylinder 21 drives the cover shell 22 and the sanding belt 25 to approach the side of the PCB board. When the side edge grinding is completed, the second cylinder 21 drives the sanding belt 25 to reset. After the pin rod is taken out, since the upper fixing plate 18 and the lower fixing plate 3 are both rotatable through bearings, the upper fixing plate 18 and the lower fixing plate 3 can be rotated while the PCB board is clamped and fixed to complete the side switching. After the switching is completed, the pin rod is positioned with the corresponding positioning plate 5 and positioning column 7, and the edge grinding operation is repeated. This design can switch the edge grinding to the next side edge without removing the PCB board after the single side edge grinding is completed.

[0044] In general, the device has a simple structure and is easy to use. The PCB board is clamped by the fixing block 15 on the upper fixing plate 18 and the lower fixing plate 3. After the grinding of a single side edge is completed, the side edge of the PCB board can be replaced by positioning the pin rod at the end of different positioning plates 5. There is no need to remove the PCB board and then fix it, which improves the efficiency of the PCB board edge grinding process.

[0045] For further information, see Figure 2-4 :

[0046] A slot 10 is provided in the support arm 8, and an extension plate 9 is slidably inserted in the slot 10, and a fixing block 15 is located at the end of the extension plate 9. An adjusting screw 11 is threadedly installed on the top surface of the end of the support arm 8, and a knob is provided on the upper end of the adjusting screw 11. A plurality of adjusting holes 12 corresponding to the adjusting screw 11 are equidistantly provided on the extension plate 9.

[0047] The end of the extension plate 9 is provided with a threaded sleeve 13, the threaded sleeve 13 on the lower fixing plate 3 is located at the top surface of the end of the extension plate 9, and the threaded sleeve 13 on the upper fixing plate 18 is located at the bottom surface of the end of the extension plate 9. The threaded sleeve 13 is internally threaded with a threaded column 14, and the fixing block 15 is located at the end of the threaded column 14. The threaded column 14 is an integrated structure of a rubber material with an anti-slip protrusion on the end surface.

[0048] Through such a design, the four groups of fixing blocks 15 on the upper fixing plate 18 and the lower fixing plate 3 can be extended and retracted according to actual needs, so that the fixing mechanism can be flexibly adapted according to the size of the PCB board, greatly improving the practicality of the device;

[0049] Moreover, the fixing block 15 is installed by the threaded column 14 and the threaded sleeve 13 at the end of the extension plate 9, which can facilitate the fast and convenient installation and removal of the fixing block 15, and facilitate the surface cleaning or replacement of the fixing block 15;

[0050] The fixing block 15 is made of rubber, and the end surface of the fixing block 15 has a protective protrusion, which can avoid damage to the PCB board when the PCB board is fixed, and has a good anti-slip effect, and fixes the PCB board more stably and firmly.

[0051] Also, see Figure 5 :

[0052] Mounting plates 27 are mounted on both end side walls of the housing 22 by fixing screws. Baffles 28 are arranged at the ends of the mounting plates 27. Two groups of baffles 28 are symmetrically arranged in an eight-shaped shape.

[0053] By installing two sets of baffles 28 in an eight-shaped tilt on both sides of the cover shell 22, it can play a shielding role when the PCB board is edged, preventing the waste generated by the edge grinding from splashing into the non-working area, making it easier to clean the waste.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A PCB board edge grinding device, characterized in that: include: abutment(1); An L-shaped support plate (16) is provided on one side of the base (1); A fixing mechanism disposed on the base (1); The fixing mechanism comprises an upper fixing plate (18) and a lower fixing plate (3), the upper fixing plate (18) being located at the bottom of the supporting plate (16), and the upper fixing plate (18) being driven to rise and fall by a first cylinder (17), a support column (2) being arranged at the bottom of the lower fixing plate (3), four groups of supporting arms (8) being symmetrically arranged around the upper fixing plate (18) and the lower fixing plate (3), a fixing block (15) being arranged at the end of the supporting arm (8), and the upper fixing plate (18) and the lower fixing plate (3) being rotatable via bearings; Four groups of positioning plates (5) are symmetrically welded on the outer wall of the pillar (2), and an upper positioning hole (6) is opened at the end of the positioning plate (5). A positioning column (7) with a lower positioning hole is arranged on one side of the pillar (2) on the base (1), and the positioning of the lower fixing plate (3) is achieved by inserting a pin rod into the upper positioning hole (6) and the lower positioning hole; It also includes an edge grinding mechanism arranged on the base (1); The edge grinding mechanism comprises a side plate (20) and a cover shell (22), wherein the cover shell (22) is located on one side of the side plate (20), a driving wheel (23) and a driven wheel (24) are rotatably mounted inside the cover shell (22), and an abrasive belt (25) is mounted between the driving wheel (23) and the driven wheel (24); It also includes a telescopic mechanism for driving the sanding belt (25) to approach the PCB board.

2. A PCB board edge grinding device according to claim 1, characterized in that: A lower bearing (4) is embedded on the base (1), and the lower end of the support (2) is plugged and fixed to the inner ring of the lower bearing (4).

3. The PCB board edge grinding device according to claim 2, characterized in that: An upper bearing (19) is embedded on the top of the upper fixing plate (18), and the lower end of the piston rod of the first cylinder (17) penetrates the supporting plate (16) and is plugged and fixed to the inner ring of the upper bearing (19).

4. The PCB board edge grinding device according to claim 1, characterized in that: A slot (10) is provided in the support arm (8), an extension plate (9) is slidably inserted into the slot (10), and a fixing block (15) is located at the end of the extension plate (9).

5. The PCB board edge grinding device according to claim 4, characterized in that: An adjusting screw (11) is threadedly mounted on the top surface of the end of the support arm (8), a knob is provided on the upper end of the adjusting screw (11), and a plurality of groups of adjusting holes (12) corresponding to the adjusting screw (11) are equidistantly provided on the extension plate (9).

6. The PCB board edge grinding device according to claim 5, characterized in that: A threaded sleeve (13) is provided at the end of the extension plate (9), the threaded sleeve (13) on the lower fixed plate (3) is located at the top surface of the end of the extension plate (9), and the threaded sleeve (13) on the upper fixed plate (18) is located at the bottom surface of the end of the extension plate (9).

7. A PCB board edge grinding device according to claim 6, characterized in that: The threaded sleeve (13) is internally threaded with a threaded column (14), a fixing block (15) is located at the end of the threaded column (14), and the threaded column (14) is an integrated structure made of rubber with an anti-slip protrusion on the end surface.

8. The PCB board edge grinding device according to claim 1, characterized in that: The telescopic mechanism comprises a second cylinder (21) mounted on the outer wall of the side plate (20), wherein two groups of the second cylinders (21) are provided, and the piston rod ends of the second cylinders (21) penetrate the side plate (20) and are fixedly connected to the outer wall of the cover shell (22).

9. The PCB board edge grinding device according to claim 1, characterized in that: A motor (26) is installed on one side of the bottom of the cover shell (22), and the output end of the motor (26) is drivingly connected to the lower end shaft of the driving wheel (23).

10. The PCB board edge grinding device according to claim 1, characterized in that: Mounting plates (27) are mounted on both end side walls of the cover shell (22) by means of fixing screws, and baffles (28) are arranged at the ends of the mounting plates (27), and two groups of baffles (28) are symmetrically arranged in an eight-shaped shape.

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