Drilling device capable of reducing hole wall unevenness
By introducing magnetic balance components and fixing components into the drilling device, the problems of drill bit deflection and circuit board offset during the drilling process are solved, and the drilling effect of the hole wall is achieved, which improves the drilling quality and stability.
Patent Information
- Application Number
- CN202421612031.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-09
AI Technical Summary
When drilling circuit boards, existing drilling devices are prone to vibration to deflect the drill bit, resulting in uneven hole walls, affecting the subsequent plating effect and the conduction performance of the interlayer circuit.
A drilling device including a magnetic balancing assembly and a fixing assembly is designed. The magnetic balance assembly weakens the skew caused by vibration during drilling by designing magnets inside the drill bit and matching the external electromagnetic ring sleeve. The fixing component effectively fixes the circuit board through structures such as the transverse adjustment frame, longitudinal adjustment plate and locking bolts to prevent it from being offset during drilling.
Through the design of the magnetic balance assembly, the drill bit can more stably maintain vertical downward movement during the drilling process, significantly reducing the problem of uneven hole walls; the fixed assembly effectively prevents circuit board deviation and improves the quality of the drill holes; the elastic balance assembly further improves the vibration of the lifting cylinder to ensure the stability of the drill bit.
Smart Images
Figure CN222920693U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit board processing, in particular to a drilling device that can reduce the unevenness of the hole wall. Background Art
[0002] A circuit board, also known as a printed circuit board, is an important electronic component, a support for electronic components, and a carrier for the electrical interconnection of electronic components. Since it is made by electronic printing technology, it is called a "printed" circuit board. Almost every electronic device, from small electronic watches and calculators to computers, communication electronic devices, and military weapon systems, as long as there are electronic components such as integrated circuits, in order to achieve the electrical interconnection between components, a circuit board is required. A circuit board consists of an insulating base plate, connecting wires, and pads for assembling and soldering electronic components, and has the dual functions of a conductive circuit and an insulating base plate.
[0003] During the production and processing of circuit boards, drilling treatment is often required. However, when a conventional drilling device drills a circuit board, the drill bit is extremely likely to deviate due to factors such as vibration. The hole wall drilled by the deviated drill bit on the circuit board also becomes uneven. For circuit boards, especially multi-layer circuit boards, uneven hole walls will greatly affect the subsequent electroplating effect and ultimately affect the conduction performance of the interlayer circuit. Summary of the Utility Model
[0004] Based on this, it is necessary to provide a drilling device that can reduce the unevenness of the hole wall in view of the deficiencies in the prior art.
[0005] A drilling device that can reduce the unevenness of the hole wall includes a processing table, a mounting frame, a fixing component, a drilling component, and a magnetic balance component. A first adjustment slide rail is provided on the processing table. The mounting frame stands on the processing table. The fixing component is snap-fitted in the first adjustment slide rail and can slide left and right. The drilling component and the magnetic balance component are both mounted on the mounting frame, and the drilling component is located above the magnetic balance component. The drilling component includes a first lifting cylinder, a drilling motor, and a drill bit. The first lifting cylinder penetrates through the mounting frame. The drilling motor is mounted at the lower end of the first lifting cylinder and can move up and down. The drill bit is mounted at the lower end of the drilling motor, and a magnet is also provided inside the drill bit. The magnetic balance component includes a second lifting cylinder, a pressing plate, and an electromagnetic ring sleeve. The second lifting cylinder is mounted on the mounting frame. The pressing plate is mounted at the lower end of the second lifting cylinder and can move up and down. A drilling through hole that penetrates up and down is provided on the pressing plate. The electromagnetic ring sleeve is designed as an annular column structure that penetrates up and down. The electromagnetic ring sleeve is mounted on the upper end of the pressing plate and corresponds to the drill bit and the drilling through hole up and down respectively.
[0006] Further, the fixing component includes a horizontal adjusting frame, a vertical adjusting plate, a locking bolt, and a fixing pressing block. The horizontal adjusting frame is snap-fitted in the first adjusting slide rail and can slide left and right. A second adjusting slide rail is also provided on one side of the horizontal adjusting frame. The vertical adjusting plate is snap-fitted in the second adjusting slide rail and can slide back and forth. An adjusting through hole penetrating up and down is further provided on the vertical adjusting plate. The locking bolt is inserted through the adjusting through hole, and the fixing pressing block is installed at the lower end of the locking bolt.
[0007] Further, the drilling device capable of reducing the unevenness of the hole wall further includes an elastic balance component. The elastic balance component includes an elastic telescopic rod and an arc-shaped limiting plate. The elastic telescopic rod is horizontally inserted through the mounting frame, and its inner end points to the first lifting cylinder. The arc-shaped limiting plate is fixedly installed at the inner end of the elastic telescopic rod and abuts against the outer side of the first lifting cylinder.
[0008] Further, a dust suction device is also provided on the magnetic balance component. The dust suction device is communicated with the drilling through hole on the pressing plate. A spiral chip removal groove is also provided on the outer surface of the drill bit.
[0009] Further, a buffer groove is also provided on the processing table. A buffer plate is provided in the buffer groove. The buffer plate corresponds to the drill bit up and down, and the material of the buffer plate is a flexible buffer material.
[0010] In summary, the beneficial effects of the drilling device of the present utility model capable of reducing the unevenness of the hole wall are as follows: By designing a magnet in the drill bit and cooperating with an external electromagnetic ring sleeve, the deflection problem of the drill bit caused by factors such as vibration during the drilling process can be significantly weakened, enabling the drill bit to complete the drilling process more stably and finally machining a hole position with a more uniform hole wall; the fixing component can effectively fix the circuit board and prevent the circuit board from shifting during the drilling process and affecting the drilling quality; the elastic balance component can improve the vibration of the lifting cylinder during the drilling process and make the drill bit further stable during the drilling process; the present utility model has strong practicability and has strong popularization significance. Description of the Drawings
[0011] Figure 1 is a schematic structural diagram of a drilling device of the present utility model capable of reducing the unevenness of the hole wall;
[0012] Figure 2 is Figure 1 the exploded structural diagram of
[0013] Figure 3 is Figure 2 the exploded structural diagram of the processing table in
[0014] Figure 4 is Figure 2 the exploded structural diagram of the fixing component in
[0015] Figure 5 is Figure 2 a schematic exploded view of the drilling assembly in
[0016] Figure 6 is Figure 2 a schematic exploded view of the magnetic balance assembly in
[0017] Figure 7 is Figure 2 a schematic exploded view of the elastic balance assembly in Specific embodiments
[0018] In order to make the objectives, technical solutions and advantages of the utility model clearer and more understandable, the following further details the utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0019] As Figures 1 to 7 shown, the utility model provides a drilling device 100 that can reduce non-uniformity of the hole wall, which includes a processing table 10, a mounting frame 20, a fixing component 30, a drilling component 40 and a magnetic balance component 50. In the utility model, there are also several pneumatic and electric driving devices and various gas circuit and circuit connection structures, which are not elaborated herein because they are all conventional technical contents in this technical field.
[0020] A first adjustment slide rail 11 is provided on the processing table 10. The mounting frame 20 stands on the processing table 10. The fixing component 30 is snap-fitted in the first adjustment slide rail 11 and can slide left and right. The drilling component 40 and the magnetic balance component 50 are both mounted on the mounting frame 20, and the drilling component 40 is located above the magnetic balance component 50. A buffer groove 12 is also provided on the processing table 10. A buffer plate 13 is provided in the buffer groove 12. The buffer plate 13 corresponds to the drill bit 43 up and down, and the material of the buffer plate 13 is a flexible buffer material. The processing table 10 provided with the buffer plate 13 can better protect the drill bit 43 and avoid damage to the equipment caused by the tip of the drill bit 43 hitting the surface of the processing table 10 after the through hole of the circuit board is drilled through.
[0021] The fixing component 30 includes a lateral adjusting frame 31, a longitudinal adjusting plate 32, a locking bolt 33 and a fixing pressing block 34. The lateral adjusting frame 31 is snap-fitted in the first adjusting slide rail 11 and can slide left and right. A second adjusting slide rail 311 is further provided on one side of the lateral adjusting frame 31. The longitudinal adjusting plate 32 is snap-fitted in the second adjusting slide rail 311 and can slide back and forth. An adjusting through hole 321 penetrating up and down is further provided on the longitudinal adjusting plate 32. The locking bolt 33 is inserted into the adjusting through hole 321, and the fixing pressing block 34 is installed at the lower end of the locking bolt 33. The fixing component 30 that can be adjusted longitudinally and horizontally can firmly and reliably fix circuit boards of different specifications and sizes, preventing the problem that the circuit board is accidentally displaced during drilling processing and affecting the drilling effect.
[0022] The drilling component 40 includes a first lifting cylinder 41, a drilling motor 42 and a drill bit 43. The first lifting cylinder 41 is inserted through the mounting frame 20. The drilling motor 42 is installed at the lower end of the first lifting cylinder 41 and can move up and down. The drill bit 43 is installed at the lower end of the drilling motor 42, and a magnet (not shown in the figure) is further provided in the drill bit 43. The first lifting cylinder 41 can drive the drilling motor 42 and the drill bit 43 to freely lift, enabling the drilling device to drill holes with any depth on the circuit board, and the automated drilling lift is more accurate and stable than the manual method.
[0023] The magnetic balance component 50 includes a second lifting cylinder 51, a pressing plate 52 and an electromagnetic ring sleeve 53. The second lifting cylinder 51 is installed on the mounting frame 20. The pressing plate 52 is installed at the lower end of the second lifting cylinder 51 and can move up and down. A drilling through hole 521 penetrating up and down is provided on the pressing plate 52. The electromagnetic ring sleeve 53 is designed as an annular column structure penetrating up and down. The electromagnetic ring sleeve 53 is installed at the upper end of the pressing plate 52 and corresponds to the drill bit 43 and the drilling through hole 521 up and down respectively.
[0024] When drilling processing needs to be performed on the circuit board, first, the circuit board is positioned on the tabletop of the processing table 10 through the fixing component 30, and the second lifting cylinder 51 is started to drive the pressing plate 52 to press against the upper surface of the circuit board to further assist in fixing. Then the drilling component 40 starts to work, and the first lifting drives the drilling motor 42 and the drill bit 43 to gradually descend, and the drilling motor 42 also synchronously drives the drill bit 43 to rotate at high speed.
[0025] When the drill bit 43 descends to penetrate into the electromagnetic ring sleeve 53, the electromagnetic ring sleeve 53 is electrified to generate a magnetic field. The magnetic poles of the electromagnetic ring sleeve 53 are radial and exactly repel the magnet in the drill bit 43. Under the action of the annular magnetic repulsion force, the drill bit 43 that gradually descends and drills the circuit board will continuously correct the possible deflection trend of itself, ensuring that the drill bit 43 always moves vertically downward, and finally realizing the drilling processing with a uniform hole wall.
[0026] A dust suction device 54 is further provided on the magnetic balance assembly 50, and the dust suction device 54 is communicated with the drilling through hole 521 on the pressing plate 52. A spiral chip discharging groove 431 is further provided on the outer surface of the drill bit 43. The spiral chip discharging groove 431 on the drill bit 43 can continuously guide the chips generated in the drilling hole upward. When the chips pass through the through hole of the drill bit 43, the dust suction device 54 will generate suction to suck out and store the chips, avoiding the accumulation of excessive chips and affecting the circuit board drilling process.
[0027] The drilling device 100 capable of reducing the non-uniformity of the hole wall further includes an elastic balance assembly 60, and the elastic balance assembly 60 includes an elastic telescopic rod 61 and an arc-shaped limiting plate 62. The elastic telescopic rod 61 is horizontally disposed through the mounting frame 20, and its inner end points to the first lifting cylinder 41. The arc-shaped limiting plate 62 is fixedly installed at the inner end of the elastic telescopic rod 61 and abuts against the outer side of the first lifting cylinder 41. The horizontally arranged elastic balance assembly 60 can strengthen the radial stability effect of the first lifting cylinder 41, thereby effectively avoiding the problem that the drill bit 43 is deflected due to factors such as vibration during the drilling process, and ultimately resulting in the non-uniformity of the hole wall in the circuit board drilling process.
[0028] In summary, the beneficial effects of the drilling device 100 of the present utility model capable of reducing the non-uniformity of the hole wall are as follows: By designing a magnet inside the drill bit 43 and cooperating with the external electromagnetic ring sleeve 53, the deflection problem of the drill bit 43 caused by factors such as vibration during the drilling process can be greatly reduced, enabling the drill bit 43 to complete the drilling process more stably, and finally machining a hole position with a more uniform hole wall; the fixing assembly 30 can effectively fix the circuit board, avoiding the circuit board from shifting during the drilling process and affecting the drilling quality; the elastic balance assembly 60 can improve the vibration of the lifting cylinder during the drilling process, making the drill bit 43 further stable during drilling; the present utility model has strong practicability and has strong popularization significance.
[0029] The above embodiments only represent one implementation manner of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A drilling device capable of reducing the unevenness of the hole wall, characterized in that: The invention comprises a processing table, a mounting frame, a fixing assembly, a drilling assembly and a magnetic balancing assembly; the processing table is provided with a first adjusting slide rail, the mounting frame stands on the processing table, the fixing assembly is mounted in the first adjusting slide rail and can slide left and right, the drilling assembly and the magnetic balancing assembly are both mounted on the mounting frame, and the drilling assembly is located above the magnetic balancing assembly; the drilling assembly comprises a first lifting cylinder, a drilling motor and a drill bit, the first lifting cylinder is penetrated on the mounting frame, the drilling motor is mounted on the first lifting cylinder, and the drilling motor is mounted on the first lifting cylinder. The lower end of the cylinder is movable and can be raised and lowered, the drill bit is installed at the lower end of the drilling motor, and a magnet is also provided in the drill bit; the magnetic balance component includes a second lifting cylinder, a pressure plate and an electromagnetic ring sleeve, the second lifting cylinder is installed on the mounting frame, the pressure plate is installed at the lower end of the second lifting cylinder and can be movably raised and lowered, and a drilling through hole penetrating up and down is provided on the pressure plate, the electromagnetic ring sleeve is designed as a ring column structure penetrating up and down, the electromagnetic ring sleeve is installed at the upper end of the pressure plate and corresponds to the drill bit and the drilling through hole up and down respectively.
2. The drilling device capable of reducing hole wall unevenness according to claim 1, characterized in that: The fixing assembly includes a transverse adjustment frame, a longitudinal adjustment plate, a locking bolt and a fixed pressure block; the transverse adjustment frame is mounted in a first adjustment slide rail and can slide left and right, a second adjustment slide rail is also provided on one side of the transverse adjustment frame, the longitudinal adjustment plate is mounted in the second adjustment slide rail and can slide back and forth, an adjustment through hole is also provided on the longitudinal adjustment plate which passes through the upper and lower parts, the locking bolt is passed through the adjustment through hole, and the fixed pressure block is installed at the lower end of the locking bolt.
3. The drilling device capable of reducing hole wall unevenness according to claim 1, characterized in that: It also includes an elastic balancing component, which includes an elastic telescopic rod and an arc-shaped limiting plate; the elastic telescopic rod is horizontally inserted into the mounting frame, and its inner end points to the first lifting cylinder, and the arc-shaped limiting plate is fixedly mounted on the inner end of the elastic telescopic rod and abuts against the outer side of the first lifting cylinder.
4. The drilling device capable of reducing hole wall unevenness according to claim 1, characterized in that: The magnetic balance component is also provided with a dust suction device, which is communicated with the drilling through hole on the pressure plate; the outer surface of the drill bit is also provided with a spiral chip removal groove.
5. The drilling device capable of reducing hole wall unevenness according to claim 1, characterized in that: The processing table is also provided with a buffer groove, in which a buffer plate is provided. The buffer plate corresponds to the drill bit up and down, and the material of the buffer plate is a flexible buffer material.