Clamping device for circuit board drilling

Abstract

The utility model relates to the technical field of circuit board drilling, and discloses a clamping device for circuit board drilling, which comprises a base, a clamping mechanism is arranged at the top of the base, a drilling mechanism is arranged on the rear side of the clamping mechanism, the clamping mechanism comprises a processing table, the processing table is fixedly connected to the top of the base, and the drilling mechanism is arranged on the rear side of the clamping mechanism. A protective door is rotatably connected to the front side of the machining table, a first air cylinder is fixedly connected to the left side of the machining table, a supporting frame is fixedly connected to the right side of the first air cylinder, a fixing rod is slidably connected to the interior of the supporting frame, and a connecting plate is fixedly connected to the right side of the supporting frame. When the circuit board needs to be drilled, firstly, the rectangular circuit board drill is located on the inner sides and the middle positions of the two first clamping plates, the first air cylinder drives the supporting frame and the connecting plate to move, the supporting frame slides on the periphery of the fixing rod, and then the positions of the first clamping plates can be adjusted.

Description

A clamping device for drilling circuit boards Technical Field

[0001] This utility model relates to the field of circuit board drilling technology, specifically a clamping device for drilling circuit boards. Background Technology

[0002] In the modern electronics manufacturing field, circuit boards, as carriers of electronic components, have their processing precision directly affecting the performance and reliability of electronic products. The drilling process, as a key step in the circuit board manufacturing process, requires precise fixing of the circuit board to ensure that the drilling position and hole diameter meet the design requirements. Traditional circuit board drilling clamping devices mostly use mechanical clamps or vacuum adsorption methods. However, these devices have many problems in practical applications.

[0003] Mechanical clamps typically use bolts and other components to fix circuit boards, which is a cumbersome process that makes it difficult to complete clamping quickly, resulting in low production efficiency.

[0004] According to the patent application published on the Internet, a clamping device for drilling circuit boards (authorization announcement number: CN221509864U) is described as including "mounting box, mounting plate" etc., to achieve clamping work.

[0005] Regarding the above description, the applicant believes the following issues exist:

[0006] This circuit board drilling clamping device uses a mounting box and mounting plate to perform clamping work. During use, the device uses gears and racks to drive the clamping blocks to fix the circuit board. When the circuit board to be clamped is round, the rectangular clamping blocks cannot guarantee the stability of the circuit board, and the gears and racks do not have a self-locking effect. The vibration generated during drilling cannot guarantee the stability of the circuit board. Therefore, this device needs to be improved. Summary of the Invention

[0007] The purpose of this invention is to provide a clamping device for drilling circuit boards to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for drilling circuit boards, comprising a base, a clamping mechanism being provided on the top of the base, and a drilling mechanism being provided on the rear side of the clamping mechanism;

[0009] The clamping mechanism includes a processing table, which is fixedly connected to the top of the base. A protective door is rotatably connected to the front of the processing table. A first cylinder is fixedly connected to the left side of the processing table, and a support frame is fixedly connected to the right side of the first cylinder. A fixed rod is slidably connected inside the support frame. A connecting plate is fixedly connected to the right side of the support frame, and a rotating shaft is rotatably connected inside the connecting plate. A fixed seat is fixedly connected to the periphery of the rotating shaft. A first clamping plate is fixedly connected to the right side of the fixed seat, and a second clamping plate is fixedly connected to the left side of the fixed seat. A limit frame is inserted inside the rotating shaft, and a limit pin is threadedly connected inside the limit frame. The bottom of the limit pin is threadedly connected to the inside of the fixed seat. A second cylinder is fixedly connected to the bottom of the processing table, and a placement frame is fixedly connected to the top of the second cylinder.

[0010] Preferably, the support frame is slidably connected inside the processing table, the fixing rod is fixedly connected inside the processing table, the first clamping plate and the second clamping plate are rectangular and V-shaped respectively, and the top of the placement frame is provided with a rubber pad to facilitate the fixing of rectangular or circular circuit boards under the action of the first clamping plate and the second clamping plate.

[0011] Preferably, the limiting frame extends through the inside of the connecting plate, and the connecting plate and the rotating shaft are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting frame is inserted into the fixing groove, which facilitates the stability of the rotating shaft in a static state under the action of the limiting frame.

[0012] Preferably, the fixed base has a limiting groove inside, the bottom of the limiting pin is threaded to the limiting groove, and there are two limiting grooves. The two limiting grooves are symmetrically distributed on the upper and lower sides of the fixed base, which facilitates the fixing of the rotating shaft by the limiting pin and ensures the stability between the rotating shaft and the fixed base.

[0013] Preferably, the first cylinder, support frame, fixing rod, connecting plate, rotating shaft, first clamping plate, limiting frame, fixing seat, limiting pin, and second clamping plate are provided in two sets. The two sets of the first cylinder, support frame, fixing rod, connecting plate, rotating shaft, first clamping plate, limiting frame, fixing seat, limiting pin, and second clamping plate are symmetrically distributed on the left and right sides of the top of the processing table, and the two sets of second clamping plates slide against each other, so that circuit boards of different sizes can be clamped by setting two sets.

[0014] Preferably, the drilling mechanism includes a rectangular frame, which is fixedly connected to the rear side of the processing table. A first servo motor is fixedly connected to the right side of the rectangular frame, and a threaded rod is fixedly connected to the left side of the first servo motor. A movable table is threadedly connected to the outer periphery of the threaded rod. A fixed frame is fixedly connected to the top of the movable table, and a third cylinder is fixedly connected to the top of the fixed frame. A mounting plate is fixedly connected to the bottom of the third cylinder, and a second servo motor is fixedly connected to the bottom of the mounting plate. A drill bit is fixedly connected to the bottom of the second servo motor.

[0015] Preferably, the threaded rod is rotatably connected to the rectangular frame on the left side, and the movable table is slidably connected to the inside of the rectangular frame, so that the drill bit can be moved left and right under the action of the movable table.

[0016] Compared with the prior art, the present invention provides a clamping device for drilling circuit boards, which has the following advantages:

[0017] 1. This circuit board drilling clamping device, through its clamping mechanism, allows for the initial positioning of a rectangular circuit board within the center of two sets of first clamping plates when drilling is required. A first cylinder then moves the support frame and connecting plate, causing the support frame to slide around the fixed rod, thus adjusting the position of the first clamping plates to be on either side of the circuit board for fixation. When the circuit board to be clamped is circular, the limiting pin and limiting frame can be removed, and the rotating shaft can be rotated to rotate the fixed base, exchanging the positions of the first and second clamping plates. After adjustment, the limiting frame is re-inserted into the connecting plate and rotating shaft, and fixed by the limiting pin, ensuring the stability of the rotating shaft. The spacing between the second clamping plates can then be readjusted to fix the circular circuit board. The two sets of second clamping plates are V-shaped and slide against each other, preventing displacement or damage due to insecure clamping.

[0018] 2. This circuit board drilling clamping device, through its drilling mechanism, when the circuit board is fixed in place by the action of the first or second clamping plate and the placement frame, the first servo motor drives the threaded rod to rotate, causing the moving table to slide left and right within the rectangular frame, achieving precise horizontal positioning of the drill bit. The third cylinder can drive the mounting plate and the drill bit to move up and down, controlling the drilling depth. The second servo motor drives the drill bit to rotate at high speed to perform the drilling operation. This multi-component collaborative working method can achieve precise control of the drilling position and depth of the circuit board, meet the requirements of different circuit board drilling processes, and improve the automation level and production efficiency of drilling. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 is a schematic diagram of the clamping mechanism;

[0023] Figure 4 is a schematic diagram of the top structure of the processing table;

[0024] Figure 5 is a schematic diagram of the inner structure of the connecting plate;

[0025] Figure 6 is a schematic cross-sectional view of the machining table;

[0026] Figure 7 is a schematic diagram of the drilling mechanism.

[0027] In the diagram: 1. Base; 2. Clamping mechanism; 3. Drilling mechanism; 21. Processing table; 22. First cylinder; 23. Protective door; 24. Second cylinder; 25. Support frame; 26. Fixing rod; 27. Connecting plate; 28. Rotating shaft; 29. ​​First clamping plate; 291. Limiting frame; 292. Fixed seat; 293. Limiting pin; 294. Second clamping plate; 295. Placement frame; 31. Rectangular frame; 32. First servo motor; 33. Threaded rod; 34. Moving table; 35. Fixing frame; 36. Third cylinder; 37. Mounting plate; 38. Second servo motor; 39. Drill bit. Detailed Implementation

[0028] 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.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] This utility model provides the following technical solution:

[0031] Example 1

[0032] Please refer to Figures 1-7. This utility model provides a technical solution: a clamping device for drilling circuit boards, including a base 1, a clamping mechanism 2 is provided on the top of the base 1, and a drilling mechanism 3 is provided on the rear side of the clamping mechanism 2.

[0033] The clamping mechanism 2 includes a processing table 21, which is fixedly connected to the top of the base 1. A protective door 23 is rotatably connected to the front of the processing table 21. A first cylinder 22 is fixedly connected to the left side of the processing table 21. A support frame 25 is fixedly connected to the right side of the first cylinder 22. A fixed rod 26 is slidably connected inside the support frame 25. A connecting plate 27 is fixedly connected to the right side of the support frame 25. A rotating shaft 28 is rotatably connected inside the connecting plate 27. A fixed seat 292 is fixedly connected to the periphery of the rotating shaft 28. A first clamping plate 29 is fixedly connected to the right side of the fixed seat 292. A second clamping plate 294 is fixedly connected to the left side of the fixed seat 292. A limit frame 291 is inserted inside the rotating shaft 28. A limit pin 293 is threadedly connected inside the limit frame 291. The bottom of the limit pin 293 is threadedly connected to the inside of the fixed seat 292. A second cylinder 24 is fixedly connected to the bottom of the processing table 21. A placement frame 295 is fixedly connected to the top of the second cylinder 24.

[0034] The support frame 25 is slidably connected to the inside of the processing table 21, and the fixing rod 26 is fixedly connected to the inside of the processing table 21. The first clamping plate 29 and the second clamping plate 294 are rectangular and V-shaped, respectively. The top of the placement frame 295 is provided with a rubber pad to facilitate the fixing of rectangular or round circuit boards under the action of the first clamping plate 29 and the second clamping plate 294. The limiting frame 291 passes through the inside of the connecting plate 27. The connecting plate 27 and the rotating shaft 28 are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting frame 291 is inserted into the fixing groove to ensure the stability of the rotating shaft 28 in a static state under the action of the limiting frame 291.

[0035] The fixed base 292 has a limiting groove inside, and the bottom of the limiting pin 293 is threaded into the limiting groove. There are two limiting grooves, which are symmetrically distributed on the upper and lower sides of the fixed base 292. This facilitates the fixing of the rotating shaft 28 by the limiting pin 293, ensuring the stability between the rotating shaft 28 and the fixed base 292. There are two sets of the first cylinder 22, support frame 25, fixing rod 26, connecting plate 27, rotating shaft 28, first clamping plate 29, limiting frame 291, fixed base 292, limiting pin 293 and second clamping plate 294. The two sets of the first cylinder 22, support frame 25, fixing rod 26, connecting plate 27, rotating shaft 28, first clamping plate 29, limiting frame 291, fixed base 292, limiting pin 293 and second clamping plate 294 are symmetrically distributed on the left and right sides of the top of the processing table 21. The two sets of second clamping plates 294 slide against each other, which allows for the clamping of circuit boards of different sizes.

[0036] Example 2

[0037] Please refer to Figures 1-7. Based on Embodiment 1, the drilling mechanism 3 further includes a rectangular frame 31, which is fixedly connected to the rear side of the processing table 21. A first servo motor 32 is fixedly connected to the right side of the rectangular frame 31. A threaded rod 33 is fixedly connected to the left side of the first servo motor 32. A movable table 34 is threadedly connected to the outer periphery of the threaded rod 33. A fixed frame 35 is fixedly connected to the top of the movable table 34. A third cylinder 36 is fixedly connected to the top of the fixed frame 35. A mounting plate 37 is fixedly connected to the bottom of the third cylinder 36. A second servo motor 38 is fixedly connected to the bottom of the mounting plate 37. A drill bit 39 is fixedly connected to the bottom of the second servo motor 38.

[0038] The threaded rod 33 is rotatably connected to the rectangular frame 31 on the left, and the moving table 34 is slidably connected to the inside of the rectangular frame 31, so that the drill bit 39 can be moved left and right under the action of the moving table 34.

[0039] In actual operation, when this device is used to drill holes in a circuit board, the rectangular circuit board is first positioned inside and in the middle of the two sets of first clamping plates 29. The first cylinder 22 then moves the support frame 25 and connecting plate 27, causing the support frame 25 to slide around the fixing rod 26. This adjusts the position of the first clamping plates 29 so that they are positioned on the left and right sides of the circuit board, thus securing it. When the circuit board to be clamped is circular, the limit switch can be removed. Pin 293 and limit bracket 291, rotate rotating shaft 28 to drive fixed seat 292 to rotate, so that the positions of first clamping plate 29 and second clamping plate 294 are interchanged. After adjustment, limit bracket 291 is re-inserted into connecting plate 27 and rotating shaft 28. Limit bracket 291 is fixed by limit pin 293 to ensure the stability of rotating shaft 28. Then, under the action of two sets of first cylinders 22, the distance between two sets of second clamping plates 294 can be readjusted to fix the circular circuit board.

[0040] Furthermore, the two sets of second clamping plates 294 are V-shaped and slide against each other to avoid displacement or damage caused by insecure clamping. After fixing, the second cylinder 24 drives the placement frame 295 to move, so that the top of the placement frame 295 contacts the bottom of the circuit board, which can support the bottom of the fixed circuit board.

[0041] When the circuit board is fixed in place by the first clamping plate 29 or the second clamping plate 294 and the placement frame 295, the first servo motor 32 drives the threaded rod 33 to rotate, causing the moving table 34 to slide left and right within the rectangular frame 31, achieving precise positioning of the drill bit 39 in the horizontal direction. The third cylinder 36 can drive the mounting plate 37 and the drill bit 39 to move up and down, controlling the drilling depth. The second servo motor 38 drives the drill bit 39 to rotate at high speed to perform drilling operations. The multi-component collaborative operation can achieve precise control of the drilling position and depth of the circuit board, meet the requirements of different circuit board drilling processes, improve the automation level and production efficiency of drilling, and complete the drilling work of the circuit board. After drilling is completed, the operator needs to clean the debris on the top of the placement frame 295 and the top and inside of the processing table 21 in a timely manner, and open the protective door 23 to absorb and clean the debris inside the processing table 21, so as to avoid the residue of debris affecting the normal operation of subsequent drilling work.

[0042] In use, the first cylinder 22, the second cylinder 24, the third cylinder 36, the first servo motor 32, and the second servo motor 38 can be connected to the same PLC control system to ensure coordinated operation between the devices. The PLC control system is existing technology, and those skilled in the art are well aware of the working principle of this system.

[0043] 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.

Claims

1. A clamping device for drilling circuit boards, comprising a base (1), characterized in that: The base (1) is provided with a clamping mechanism (2) at the top, and a drilling mechanism (3) is provided at the rear side of the clamping mechanism (2); the clamping mechanism (2) includes a processing table (21), which is fixedly connected to the top of the base (1), and a protective door (23) is rotatably connected to the front side of the processing table (21). A first cylinder (22) is fixedly connected to the left side of the processing table (21), and a support frame (25) is fixedly connected to the right side of the first cylinder (22). A fixed rod (26) is slidably connected inside the support frame (25), and a connecting plate (27) is fixedly connected to the right side of the support frame (25). The connecting plate (27) rotates inside the connecting plate (27). A rotating shaft (28) is connected to the rotating shaft (28), and a fixed seat (292) is fixedly connected to the outer periphery of the rotating shaft (28). A first clamping plate (29) is fixedly connected to the right side of the fixed seat (292), and a second clamping plate (294) is fixedly connected to the left side of the fixed seat (292). A limit frame (291) is inserted into the rotating shaft (28), and a limit pin (293) is threadedly connected inside the limit frame (291). The bottom of the limit pin (293) is threadedly connected to the inside of the fixed seat (292). A second cylinder (24) is fixedly connected to the bottom of the processing table (21), and a placement rack (295) is fixedly connected to the top of the second cylinder (24).

2. The circuit board drilling clamping device according to claim 1, characterized in that: The support frame (25) is slidably connected to the inside of the processing table (21), the fixing rod (26) is fixedly connected to the inside of the processing table (21), the first clamping plate (29) and the second clamping plate (294) are rectangular and V-shaped respectively, and the top of the placement rack (295) is provided with a rubber pad.

3. The circuit board drilling clamping device according to claim 1, characterized in that: The limiting frame (291) passes through the inside of the connecting plate (27). The connecting plate (27) and the rotating shaft (28) are respectively provided with fixing slots, and the two fixing slots correspond to each other. The limiting frame (291) is inserted into the fixing slot.

4. The circuit board drilling clamping device according to claim 1, characterized in that: The fixed base (292) has a limiting groove inside, and the bottom of the limiting pin (293) is threaded to the limiting groove. There are two limiting grooves, which are symmetrically distributed on the upper and lower sides of the fixed base (292).

5. The circuit board drilling clamping device according to claim 1, characterized in that: The first cylinder (22), support frame (25), fixing rod (26), connecting plate (27), rotating shaft (28), first clamping plate (29), limiting frame (291), fixing seat (292), limiting pin (293) and second clamping plate (294) are provided in two sets. The two sets of the first cylinder (22), support frame (25), fixing rod (26), connecting plate (27), rotating shaft (28), first clamping plate (29), limiting frame (291), fixing seat (292), limiting pin (293) and second clamping plate (294) are symmetrically distributed on the left and right sides of the top of the processing table (21), and the two sets of second clamping plates (294) slide against each other.

6. The circuit board drilling clamping device according to claim 1, characterized in that: The drilling mechanism (3) includes a rectangular frame (31), which is fixedly connected to the rear side of the processing table (21). A first servo motor (32) is fixedly connected to the right side of the rectangular frame (31), and a threaded rod (33) is fixedly connected to the left side of the first servo motor (32). A moving table (34) is threadedly connected to the outer periphery of the threaded rod (33). A fixed frame (35) is fixedly connected to the top of the moving table (34). A third cylinder (36) is fixedly connected to the top of the fixed frame (35). A mounting plate (37) is fixedly connected to the bottom of the third cylinder (36). A second servo motor (38) is fixedly connected to the bottom of the mounting plate (37). A drill bit (39) is fixedly connected to the bottom of the second servo motor (38).

7. A clamping device for drilling circuit boards according to claim 6, characterized in that: The threaded rod (33) is rotatably connected to the rectangular frame (31) on the left side, and the movable platform (34) is slidably connected to the inside of the rectangular frame (31).

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