Axial vibration suppression device of drilling device
By designing two axial vibration suppression components of magnetic buffering and thread limit locking in the drilling device, the axial vibration problem during the drilling process is solved, and high-quality hole position processing and circuit board protection are achieved.
Patent Information
- Application Number
- CN202421612022.9
- 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
During the drilling process of the circuit board, the drilling device is prone to axial vibration, which affects the quality of the hole position and may cause cracks and damage to the board of the circuit board.
A drilling device including the first and second axial vibration suppression components is designed. The first component suppresses axial vibration through magnetic buffering, and the second component further suppresses vibration through thread limit locking.
It effectively suppresses axial vibration during drilling, improves the quality and accuracy of the hole position, and avoids damage to the circuit board.
Smart Images
Figure CN222920692U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit board processing, and particularly to an axial vibration suppression device for a drilling device. 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 large 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 each component, 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 process of a circuit board, drilling processing is often indispensable. However, when drilling a circuit board, especially a circuit board with a relatively hard material, the drilling device may not only have a radial deviation, but also be prone to axial vibration. An axially vibrating drilling device greatly affects the quality of the drilled hole positions, and may even cause serious impact on the circuit board, resulting in cracking and damage to the board material. Summary of the Utility Model
[0004] Based on this, it is necessary to provide an axial vibration suppression device for a drilling device in view of the deficiencies in the prior art.
[0005] An axial vibration suppression device for a drilling device includes a processing table, a mounting frame, a drilling assembly, and a first axial vibration suppression assembly. The mounting frame stands on the processing table and includes columns arranged on both sides and a mounting plate provided on the columns. Both the drilling assembly and the first axial vibration suppression assembly are installed on the mounting frame. The first axial vibration suppression assembly includes two groups of symmetrically arranged fixed magnetic cartridges and balance magnetic arms. The fixed magnetic cartridges are installed on the columns. The fixed magnetic cartridges are provided with balance grooves with inner openings. Electromagnetic sheets are also attached to the top and bottom of the balance grooves. The balance magnetic arms are fixedly installed on the outside of the drilling assembly, and their outer ends extend into the balance grooves. Permanent magnetic sheets are also attached to the top and bottom of the outer ends of the balance magnetic arms, and the permanent magnetic sheets correspond to the electromagnetic sheets up and down.
[0006] Further, lifting slide holes are also provided on both sides of the fixed magnetic cartridges. Lifting slide rods are correspondingly provided on both sides of the outer ends of the balance magnetic arms. The lifting slide rods are inserted into the corresponding lifting slide holes and can slide up and down.
[0007] Further, the balance magnetic arm is designed in a wedge-shaped structure that is wider on the inner side and narrower on the outer side.
[0008] Further, the axial vibration suppression device of the drilling device further includes a second axial vibration suppression component, which includes a lifting air rod, a pressing shaft cylinder and a limiting ring sleeve. The lifting air rod is installed at the bottom of the mounting plate, and the pressing shaft cylinder is installed at the bottom end of the lifting air rod and is located between the processing table and the drilling component. The pressing shaft cylinder is provided with a limiting through hole penetrating up and down, and an internal thread is also provided in the limiting through hole. The limiting ring sleeve is sleeved on the lower part of the drilling component, and includes a mounting sleeve, a rotating ring and an elastic limiting member. The mounting sleeve is fixedly sleeved on the drilling component, and a circle of rotating teeth is further provided on the outer side thereof. The rotating ring is sleeved on the mounting sleeve and corresponds to the rotating teeth inside and outside. An external thread is provided on the outer side of the rotating ring. The elastic limiting member is snap-fitted on the inner side of the rotating ring and is mutually limited with the rotating teeth.
[0009] Further, the limiting ring sleeve further includes an electromagnetic abutting member, and the electromagnetic abutting member is installed on the inner side of the rotating ring and abuts against the elastic limiting member.
[0010] In summary, the beneficial effects of the axial vibration suppression device of a drilling device of the present invention are as follows: By designing the first axial vibration suppression component, magnetic force is used to buffer and suppress the axial vibration during the drilling process of the circuit board, so as to achieve high-quality hole processing of the circuit board, and it can also effectively avoid damage to the circuit board caused by axial vibration; By designing the second axial vibration suppression component, the axial vibration during drilling is further suppressed through thread limit locking, so that the drilling of the circuit board is more accurate and the hole wall is more uniform; The present invention has strong practicability and has strong promotion significance. Description of the Drawings
[0011] Figure 1 is a structural schematic diagram of an axial vibration suppression device of a drilling device of the present invention;
[0012] Figure 2 is Figure 1 the exploded structural schematic diagram of;
[0013] Figure 3 is Figure 2 the structural schematic diagram of the mounting frame in;
[0014] Figure 4 is Figure 2 the exploded structural schematic diagram of the first axial vibration suppression component in;
[0015] Figure 5 is Figure 2 the exploded structural schematic diagram of the second axial vibration suppression component in;
[0016] Figure 6 is Figure 5 the structural schematic diagram of the pressing shaft cylinder in;
[0017] Figure 7 For Figure 5 the exploded structural schematic diagram of the middle limit ring sleeve. Specific embodiments
[0018] In order to make the purpose, technical solutions and advantages of the utility model clearer, 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 present utility model provides an axial vibration suppression device 100 for a drilling device, which includes a processing table 10, a mounting frame 20, a drilling assembly 30 and a first axial vibration suppression assembly 40. The mounting frame 20 stands on the processing table 10 and includes columns 21 disposed on both sides and a mounting plate 22 disposed on the columns 21. The drilling assembly 30 and the first axial vibration suppression assembly 40 are both mounted on the mounting frame 20. It can be understood that in the present utility model, there are also various driving, sensing and control components, and since they are all conventional contents in this technical field, they will not be elaborated here.
[0020] The first axial vibration suppression assembly 40 includes two groups of symmetrically arranged fixed magnetic cartridges 41 and balance magnetic arms 42. The fixed magnetic cartridges 41 are mounted on the columns 21. The fixed magnetic cartridges 41 are provided with balance grooves 411 with inner openings. Electromagnetic sheets 412 are also attached to the top and bottom of the balance grooves 411. The balance magnetic arms 42 are fixedly mounted on the outside of the drilling assembly 30, and their outer ends extend into the balance grooves 411. Permanent magnetic sheets 421 are also attached to the top and bottom of the outer ends of the balance magnetic arms 42, and the permanent magnetic sheets 421 correspond to the electromagnetic sheets 412 up and down.
[0021] When drilling a circuit board, the electromagnetic sheets 412 in the fixed magnetic cartridges 41 play a role. By precisely controlling the current, a just right magnetic force intensity is generated, and the magnetic force generated by the electromagnetic sheets 412 repels the magnetic force of the permanent magnetic sheets 421 on the balance magnetic arms 42, so that the balance magnetic arms 42 are in a floating balance state. The balanced magnetic force can effectively suppress the axial vibration force generated by the drilling assembly 30 and keep the drill bit stable all the time. When the drill bit continuously drills downward, the electromagnetic sheets 412 can also adjust the magnetic force size in real time so that the balance magnetic arms 42 can not only maintain the floating balance but also follow the progress.
[0022] On both sides of the fixed magnetic cassette 41, there are also lifting slide holes 413. On both outer ends of the balance magnetic arm 42, there are corresponding lifting slide rods 422. The lifting slide rods 422 are inserted into the corresponding lifting slide holes 413 and can slide up and down. The mutual limitation between the lifting slide rods 422 and the lifting slide holes 413 can avoid the problem of horizontal deviation of the drilling assembly 30 during the drilling process. The balance magnetic arm 42 is designed in a wedge-shaped structure with a wider inner side and a narrower outer side. The balance magnetic arm 42 with the wedge-shaped structure design has higher structural strength, so that its suppression of axial vibration during the drilling process is more reliable.
[0023] The axial vibration suppression device 100 of the drilling device further includes a second axial vibration suppression assembly 50. The second axial vibration suppression assembly 50 includes a lifting air rod 51, a pressing shaft cylinder 52 and a limiting ring sleeve 53. The lifting air rod 51 is installed at the bottom of the mounting plate 22. The pressing shaft cylinder 52 is installed at the bottom end of the lifting air rod 51 and is located between the processing table 10 and the drilling assembly 30. There is a limiting through hole 521 penetrating up and down on the pressing shaft cylinder 52, and an internal thread 522 is also provided in the limiting through hole 521.
[0024] The limiting ring sleeve 53 is sleeved on the lower part of the drilling assembly 30. It includes a mounting sleeve 531, a rotating ring 532 and an elastic limiting member 533. The mounting sleeve 531 is fixedly sleeved on the drilling assembly 30, and there is a circle of rotating teeth 531a on its outer side. The rotating ring 532 is sleeved on the mounting sleeve 531 and corresponds to the rotating teeth 531a inside and outside. There is an external thread 532a on the outer side of the rotating ring 532. The elastic limiting member 533 is snap-fitted on the inner side of the rotating ring 532 and is mutually limited with the rotating teeth 531a.
[0025] When the drilling assembly 30 is ready to drill the circuit board, first use the lifting air rod 51 to drive the pressing shaft cylinder 52 to abut against the surface of the circuit board. Then the drilling assembly 30 starts to move downward for drilling. At this time, the limiting ring sleeve 53 sleeved on the lower part of the drilling assembly 30 will gradually spiral into the limiting through hole 521. When the drilling assembly 30 shows the phenomenon of axial vibration, due to the cooperation between the rotating teeth 531a on the mounting sleeve 531 and the elastic limiting member 533 in the rotating ring 532, the rotating ring 532 can only rotate in one direction and cannot reverse. Furthermore, the internal thread 522 in the limiting through hole 521 and the external thread 532a on the outer side of the rotating ring 532 are mutually limited to limit the upward vibration displacement of the drilling assembly 30, and finally the axial vibration of the drilling assembly 30 is suppressed.
[0026] The limit ring sleeve 53 further includes an electromagnetic abutting member (not shown in the figure), and the electromagnetic abutting member is installed inside the rotating ring 532 and abuts against the elastic limiting member 533. The electromagnetic abutting member can push the elastic limiting member 533 to expand and contract by controlling the on-off of the current, thereby releasing the mutual limitation between the rotating teeth 531a and the elastic limiting member 533, so that the rotating ring 532 can reverse around the mounting sleeve 531 for the drill bit to retract upward after the drilling is completed.
[0027] In summary, the beneficial effects of the axial vibration suppression device 100 of the drilling device of the present utility model are as follows: by designing the first axial vibration suppression component 40, magnetic force is used to buffer and suppress the axial vibration during the circuit board drilling process, so as to achieve high-quality hole processing of the circuit board, and it can also effectively avoid damage to the circuit board caused by axial vibration; by designing the second axial vibration suppression component 50, the axial vibration during drilling is further suppressed through thread limit locking, so that the drilling of the circuit board is more accurate and the hole wall is more uniform; the present utility model has strong practicability and has strong popularization significance.
[0028] The above embodiments only represent one implementation manner of the utility model, and the description is relatively specific and detailed, but it cannot be understood 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 deformations 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. An axial vibration suppression device for a drilling device, characterized in that: It includes a processing table, a mounting frame, a drilling component and a first axial vibration suppression component. The mounting frame stands on the processing table, and includes columns arranged on both sides and a mounting plate arranged on the columns. The drilling component and the first axial vibration suppression component are both installed on the mounting frame; the first axial vibration suppression component includes two groups of symmetrically arranged fixed magnetic boxes and balancing magnetic arms. The fixed magnetic box is installed on the column. The fixed magnetic box is provided with a balancing groove with an inner opening. The top and bottom of the balancing groove are also attached with electromagnetic sheets. The balancing magnetic arm is fixedly installed on the outside of the drilling component, and its outer end extends into the balancing groove. The top and bottom of the outer end of the balancing magnetic arm are also attached with permanent magnetic sheets, and the permanent magnetic sheets correspond to the electromagnetic sheets up and down.
2. The axial vibration suppression device for a drilling device according to claim 1, characterized in that: Lifting slide holes are also arranged on both sides of the fixed magnetic box, and lifting slide rods are correspondingly arranged on both sides of the outer end of the balancing magnetic arm. The lifting slide rods are inserted into the corresponding lifting slide holes and can slide up and down.
3. The axial vibration suppression device for a drilling device according to claim 1, characterized in that: The balance magnetic arm is designed in a wedge-shaped structure with a wide inner side and a narrow outer side.
4. The axial vibration suppression device for a drilling device according to claim 1, characterized in that: It also includes a second axial vibration suppression component, which includes a lifting gas rod, a pressing shaft cylinder and a limiting ring sleeve; the lifting gas rod is installed at the bottom of the mounting plate, the pressing shaft cylinder is installed at the bottom of the lifting gas rod and is located between the processing table and the drilling assembly, the pressing shaft cylinder is provided with a limiting through hole extending up and down, and the limiting through hole is also provided with a female thread; the limiting ring sleeve is sleeved on the lower part of the drilling assembly, and includes a mounting sleeve, a swivel and an elastic limiting member, the mounting sleeve is fixedly sleeved on the drilling assembly, and a circle of rotating teeth is also provided on its outer side, the swivel is sleeved on the mounting sleeve and corresponds to the inner and outer sides of the rotating teeth, the outer side of the swivel is also provided with a male thread, the elastic limiting member is clamped and installed on the inner side of the swivel and limits the rotating teeth to each other.
5. The axial vibration suppression device for a drilling device according to claim 4, characterized in that: The limiting ring sleeve also includes an electromagnetic abutment, which is installed on the inner side of the rotating ring and abuts against the elastic limiting member.