Ultra-short slotted hole machining method and equipment

Abstract

The invention discloses an ultra-short slotted hole machining method and equipment, according to the maximum length of an ultra-short slotted hole, the drilling diameter of a first guide hole and the drilling diameter of a second guide hole are set, and the drilling diameter is smaller than one half of the maximum length of the ultra-short slotted hole; on an electronic design drawing of the ultra-short slotted hole, a first guide hole is internally tangent to one side of the ultra-short slotted hole in the maximum length direction, and a second guide hole is internally tangent to the other side of the ultra-short slotted hole in the maximum length direction, so that the drilling positions of the first guide hole and the second guide hole are determined; and according to the drilling diameter and the drilling position, drilling operation is carried out on the target object to form a first guide hole and a second guide hole, a grooving cutter is controlled to cut the first guide hole and the second guide hole, and the ultra-short groove hole is formed. The defects of deformation, different hole diameters and the like of the ultra-short groove hole can be avoided, the machining precision is improved, and meanwhile the breaking risk of the groove cutter is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ultra-short slot processing, and in particular to an ultra-short slot processing method and equipment. Background Art

[0002] In electronics manufacturing, such as printed circuit board production, ultra-short slots are often used to achieve precise connection and fixation of electronic components. As electronic products move towards miniaturization and high integration, the requirements for the dimensional and shape accuracy of ultra-short slots are becoming increasingly stringent.

[0003] However, existing ultra-short slot machining technology presents numerous challenges. For example, when the slot length is short, uneven force is applied to both ends of the slot during drilling, leading to deformation and uneven hole sizes, which seriously impact product quality and performance. For example, in printed circuit boards, insufficient machining precision for ultra-short slots can lead to loose mounting of electronic components, potentially causing circuit failures. In addition, when processing ultra-short drill slots on some high-strength and high-hardness materials, the tool is subjected to large radial forces and torques, especially when the slot length is less than 2 times the tool diameter. The risk of tool breakage increases significantly, the slot is seriously misaligned, the processing efficiency is low, and the production cost is high. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and equipment for processing ultra-short slots, so as to avoid defects such as deformation and uneven aperture of ultra-short slots, improve processing accuracy, and reduce the risk of slot cutter breakage.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for machining an ultra-short slot comprises the following steps: S1. Setting the drilling diameters of the first guide hole and the second guide hole according to the maximum length of the ultra-short slot, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot; S2. On the electronic design drawing of the ultra-short slot, the first guide hole is arranged to be inscribed with one side of the ultra-short slot in the direction of maximum length, and the second guide hole is arranged to be inscribed with the other side of the ultra-short slot in the direction of maximum length, thereby determining the drilling positions of the first guide hole and the second guide hole; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole and the second guide hole, and control the slotting cutter to cut the first guide hole and the second guide hole to form the ultra-short slot. In order to solve the above technical problems, another technical solution adopted by the present invention is: An ultra-short slot processing device includes a main control device, a drilling device, and a slot cutter driving device, wherein the main control device is electrically connected to the drilling device and the slot cutter driving device, respectively, and the main control device is used to perform the following steps: S1. Setting the drilling diameters of the first guide hole and the second guide hole according to the maximum length of the ultra-short slot, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot; S2. On the electronic design drawing of the ultra-short slot, the first guide hole is arranged to be inscribed with one side of the ultra-short slot in the direction of maximum length, and the second guide hole is arranged to be inscribed with the other side of the ultra-short slot in the direction of maximum length, thereby determining the drilling positions of the first guide hole and the second guide hole; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole and the second guide hole, and control the slotting cutter to cut the first guide hole and the second guide hole to form the ultra-short slot. The beneficial effects of the present invention are: providing an ultra-short slot processing method and equipment, adding a first guide hole and a second guide hole for assisting in forming the ultra-short slot, setting the drilling diameter of the first guide hole and the second guide hole to be less than half of the maximum length of the ultra-short slot, so as to ensure that the drill bit is evenly stressed during the drilling process; respectively setting the first guide hole and the second guide hole to be inscribed in the two opposite sides of the ultra-short slot in the direction of the maximum length; during the processing operation, the maximum length of the ultra-short hole slot is determined by pre-drilling the first guide hole and the second guide hole, and the slotting cutter performs cutting on this basis, which can reduce the radial force and torque received by the slotting cutter, thereby avoiding defects such as deformation and uneven aperture size of the ultra-short slot, improving the processing accuracy, and reducing the risk of slotting cutter breakage, and is suitable for ultra-short drilling slot processing of various materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A schematic diagram of the steps of a method for machining an ultra-short slot according to the present invention; Figure 2 An electronic design drawing of an ultra-short slot hole according to an ultra-short slot hole machining method of the present invention; Figure 3 This is a system block diagram of an ultra-short slot processing device of the present invention.

[0007] Description of labels: 1. Ultra-short slot; 2. First guide hole; 3. Second guide hole; 4. Main control device; 5. Drilling device; 6. Slot cutter drive device. DETAILED DESCRIPTION

[0008] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0009] Please refer to Figure 1 and Figure 2 , a method for processing an ultra-short slot, comprising the following steps: S1. According to the maximum length of the ultra-short slot 1, the drilling diameters of the first guide hole 2 and the second guide hole 3 are set, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot 1; S2. On the electronic design drawing of the ultra-short slot 1, the first guide hole 2 is arranged to be inscribed in one side of the ultra-short slot 1 in the direction of maximum length, and the second guide hole 3 is arranged to be inscribed in the other side of the ultra-short slot 1 in the direction of maximum length, thereby determining the drilling positions of the first guide hole 2 and the second guide hole 3; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole 2 and the second guide hole 3, and control the slotting cutter to cut the first guide hole 2 and the second guide hole 3 to form the ultra-short slot 1.

[0010] From the above description, it can be seen that the beneficial effects of the present invention are: adding a first guide hole 2 and a second guide hole 3 for assisting in forming an ultra-short slot 1, and setting the drilling diameter of the first guide hole 2 and the second guide hole 3 to be less than half of the maximum length of the ultra-short slot 1, so as to ensure that the drill bit is subjected to uniform force during the drilling process; respectively setting the first guide hole 2 and the second guide hole 3 to be inscribed in the two opposite sides of the ultra-short slot 1 in the direction of the maximum length; during the processing operation, the maximum length of the ultra-short hole slot is determined by pre-drilling the first guide hole 2 and the second guide hole 3, and the slotting cutter performs cutting on this basis, which can reduce the radial force and torque received by the slotting cutter, thereby avoiding defects such as deformation and uneven aperture size of the ultra-short slot 1, improving processing accuracy, and reducing the risk of slotting cutter breakage, and is suitable for ultra-short drilling slot processing of various materials.

[0011] Furthermore, the S2 further includes: By adjusting the size of the drill hole diameter, the distance between the first guide hole 2 and the second guide hole 3 is controlled to be greater than or equal to a preset distance.

[0012] From the above description, it can be seen that reasonable control of the distance between the two guide holes can make the subsequent slotting tool cutting path more accurate and controllable, reduce the dimensional error of the ultra-short slot hole 1 caused by the position deviation of the guide hole, and ensure the dimensional consistency of the ultra-short slot hole 1 in the length direction, thereby improving the processing quality and pass rate of the ultra-short slot hole 1 and meeting higher precision processing requirements.

[0013] Furthermore, the S1 includes: The drilling diameter is calculated based on the maximum length of the ultra-short slot 1, and the expression is as follows: (L / 2)-d; Wherein, L represents the maximum length of the ultra-short slot 1, and d represents the preset deviation.

[0014] From the above description, it can be seen that a precise correspondence between the drilling diameter and the maximum length of the ultra-short slot hole 1 is set. On the premise that the drilling diameter is less than half of the maximum length of the ultra-short slot hole 1, the size of the drilling diameter is flexibly adjusted to ensure that the first guide hole 2 and the second guide hole 3 are kept apart, so that the drill bit maintains full contact with the target object during the drilling process, the force is evenly distributed, and deformation of the drill bit is avoided.

[0015] Furthermore, before S3, the step further includes: According to the aspect ratio of the ultra-short slot 1, the diameter of the slotting cutter and the material properties of the target object, the drill bit travel setting is completed through a preset optimization algorithm.

[0016] From the above description, it can be seen that the aspect ratio of the ultra-short slot 1 determines the complexity of the processing path, the slot cutter diameter affects the cutting range, and the material properties are related to the cutting resistance and the degree of drill wear. The preset optimization algorithm takes these key factors into consideration and can plan the most reasonable drill bit travel trajectory and speed; reasonable travel settings can reduce the vibration and deviation of the drill bit during the processing process, avoid defects such as burrs and irregular apertures in the ultra-short slot 1 caused by improper drill bit movement, and ensure processing accuracy; at the same time, ensure that the slot cutter is evenly stressed during processing to reduce deviation.

[0017] Furthermore, before S1, the step further includes: S0. Import the electronic design drawing of the ultra-short slot 1 into the image software, and analyze the electronic design drawing to obtain the maximum length of the ultra-short slot 1.

[0018] From the above description, it can be seen that compared with manual measurement, using image software to analyze electronic design drawings can quickly and accurately obtain the key dimension information of the ultra-short slot 1, avoiding the errors and omissions that may occur in manual measurement, and providing a reliable data basis for subsequent drilling diameter calculation, guide hole position determination and other steps.

[0019] Please refer to Figure 3 An ultra-short slot processing device includes a main control device 4, a drilling device 5, and a slotting cutter driving device 6. The main control device 4 is electrically connected to the drilling device 5 and the slotting cutter driving device 6 respectively, and is characterized in that the main control device 4 is used to perform the following steps: S1. According to the maximum length of the ultra-short slot 1, the drilling diameters of the first guide hole 2 and the second guide hole 3 are set, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot 1; S2. On the electronic design drawing of the ultra-short slot 1, the first guide hole 2 is arranged to be inscribed in one side of the ultra-short slot 1 in the direction of maximum length, and the second guide hole 3 is arranged to be inscribed in the other side of the ultra-short slot 1 in the direction of maximum length, thereby determining the drilling positions of the first guide hole 2 and the second guide hole 3; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole 2 and the second guide hole 3, and control the slotting cutter to cut the first guide hole 2 and the second guide hole 3 to form the ultra-short slot 1. From the above description, it can be seen that the beneficial effects of the present invention are: adding a first guide hole 2 and a second guide hole 3 for assisting in forming an ultra-short slot 1, and setting the drilling diameter of the first guide hole 2 and the second guide hole 3 to be less than half of the maximum length of the ultra-short slot 1, so as to ensure that the drill bit is subjected to uniform force during the drilling process; respectively setting the first guide hole 2 and the second guide hole 3 to be inscribed in the two opposite sides of the ultra-short slot 1 in the direction of the maximum length; during the processing operation, the maximum length of the ultra-short hole slot is determined by pre-drilling the first guide hole 2 and the second guide hole 3, and the slotting cutter performs cutting on this basis, which can reduce the radial force and torque received by the slotting cutter, thereby avoiding defects such as deformation and uneven aperture size of the ultra-short slot 1, improving processing accuracy, and reducing the risk of slotting cutter breakage, and is suitable for ultra-short drilling slot processing of various materials.

[0020] Furthermore, the S2 further includes: By adjusting the size of the drill hole diameter, the distance between the first guide hole 2 and the second guide hole 3 is controlled to be greater than or equal to a preset distance.

[0021] From the above description, it can be seen that reasonable control of the distance between the two guide holes can make the subsequent slotting tool cutting path more accurate and controllable, reduce the dimensional error of the ultra-short slot hole 1 caused by the position deviation of the guide hole, and ensure the dimensional consistency of the ultra-short slot hole 1 in the length direction, thereby improving the processing quality and pass rate of the ultra-short slot hole 1 and meeting higher precision processing requirements.

[0022] Furthermore, the S1 includes: The drilling diameter is calculated based on the maximum length of the ultra-short slot 1, and the expression is as follows: (L / 2)-d; Wherein, L represents the maximum length of the ultra-short slot 1, and d represents the preset deviation.

[0023] From the above description, it can be seen that a precise correspondence between the drilling diameter and the maximum length of the ultra-short slot hole 1 is set. On the premise that the drilling diameter is less than half of the maximum length of the ultra-short slot hole 1, the size of the drilling diameter is flexibly adjusted to ensure that the first guide hole 2 and the second guide hole 3 are kept apart, so that the drill bit maintains full contact with the target object during the drilling process, the force is evenly distributed, and deformation of the drill bit is avoided.

[0024] Furthermore, before S3, the step further includes: According to the aspect ratio of the ultra-short slot 1, the diameter of the slotting cutter and the material properties of the target object, the drill bit travel setting is completed through a preset optimization algorithm.

[0025] From the above description, it can be seen that the aspect ratio of the ultra-short slot 1 determines the complexity of the processing path, the slot cutter diameter affects the cutting range, and the material properties are related to the cutting resistance and the degree of drill wear. The preset optimization algorithm takes these key factors into consideration and can plan the most reasonable drill bit travel trajectory and speed; reasonable travel settings can reduce the vibration and deviation of the drill bit during the processing process, avoid defects such as burrs and irregular apertures in the ultra-short slot 1 caused by improper drill bit movement, and ensure processing accuracy; at the same time, ensure that the slot cutter is evenly stressed during processing to reduce deviation.

[0026] Furthermore, before S1, the step further includes: S0. Import the electronic design drawing of the ultra-short slot 1 into the image software, and analyze the electronic design drawing to obtain the maximum length of the ultra-short slot 1.

[0027] From the above description, it can be seen that compared with manual measurement, using image software to analyze electronic design drawings can quickly and accurately obtain the key dimension information of the ultra-short slot 1, avoiding the errors and omissions that may occur in manual measurement, and providing a reliable data basis for subsequent drilling diameter calculation, guide hole position determination and other steps.

[0028] Please refer to Figure 1 and Figure 2 , embodiment 1 of the present invention is: A method for machining an ultra-short slot comprises the following steps: S0. Import the electronic design drawing of the ultra-short slot 1 into the image software, and analyze the electronic design drawing to obtain the maximum length of the ultra-short slot 1.

[0029] In this embodiment, the image software specifically refers to image processing technology and computer-aided design software such as CAD, etc. The measurement method provided by the software can be used to analyze and obtain the size parameters of the ultra-short slot 1 including the maximum length and aspect ratio.

[0030] S1. According to the maximum length of the ultra-short slot 1 , the drilling diameters of the first guide hole 2 and the second guide hole 3 are set. The drilling diameters are smaller than half of the maximum length of the ultra-short slot 1 .

[0031] In this embodiment, combined with Figure 2 As shown, when the drilling diameter D is greater than or equal to half of the maximum length L of the ultra-short slot hole 1, the first guide hole 2 and the second guide hole 3 are likely to overlap, and the drill bit will experience uneven force during the process of drilling the first guide hole 2 and the second guide hole 3, which will cause the slot hole to deviate and severely deform. Therefore, the drilling diameter is set to be less than half of the maximum length of the ultra-short slot hole 1. Specifically, the drilling diameter is calculated based on the maximum length of the ultra-short slot hole 1, and its expression is as follows: (L / 2)-d; Wherein, L represents the maximum length of the ultra-short slot 1, and d represents a preset deviation. The preset deviation has a value range of 0.04 mm to 0.06 mm, preferably 0.05 mm.

[0032] S2. On the electronic design drawing of the ultra-short slot 1, set the first guide hole 2 to be inscribed in one side of the ultra-short slot 1 in the direction of maximum length, and set the second guide hole 3 to be inscribed in the other side of the ultra-short slot 1 in the direction of maximum length, so as to determine the drilling positions of the first guide hole 2 and the second guide hole 3.

[0033] In this embodiment, if Figure 2 As shown, when the incision condition is met, the spacing between the first guide hole 2 and the second guide hole 3 is controlled to be greater than or equal to the preset spacing by adjusting the size of the drilling diameter. The preset spacing ranges from 0.08 mm to 0.12 mm, preferably 0.1 mm.

[0034] S3. Perform drilling operations on the target object according to the drilling diameter and drilling position to form a first guide hole 2 and a second guide hole 3, and control the slotting cutter to cut the first guide hole 2 and the second guide hole 3 to form an ultra-short slot 1. In this embodiment, the target objects include, but are not limited to, printed circuit boards, sensor housings, and other objects. Prior to S3, the process also includes: configuring drill bit travel settings using a pre-set optimization algorithm based on the aspect ratio of the ultra-short slot 1, the diameter of the slotting tool, and the material properties of the target object. The drill bit travel settings include drilling parameters such as rotational speed, cutting speed, and drilling depth.

[0035] Please refer to Figure 3 , the second embodiment of the present invention is: An ultra-short slot processing device includes a main control device 4, a drilling device 5 and a slot cutter driving device 6. The main control device 4 is electrically connected to the drilling device 5 and the slot cutter driving device 6 respectively. The main control device 4 is used to execute an ultra-short slot processing method of embodiment 1.

[0036] In summary, the present invention provides an ultra-short slot processing method and equipment, which adds a first guide hole and a second guide hole for assisting in the formation of an ultra-short slot, and sets the drilling diameter of the first guide hole and the second guide hole to be less than half of the maximum length of the ultra-short slot, so as to ensure that the drill bit is subjected to uniform force during the drilling process; the first guide hole and the second guide hole are respectively set to be inscribed on the two opposite sides of the ultra-short slot in the direction of the maximum length; during the processing operation, the maximum length of the ultra-short hole slot is determined by pre-drilling the first guide hole and the second guide hole, and the slot cutter performs cutting on this basis, which can reduce the radial force and torque received by the slot cutter, thereby avoiding defects such as deformation and uneven aperture of the ultra-short slot, improving processing accuracy, and reducing the risk of slot cutter breakage, and is suitable for ultra-short drilling slot processing of various materials.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for processing ultra-short slots, characterized in that: The steps include: S1. Setting the drilling diameters of the first guide hole and the second guide hole according to the maximum length of the ultra-short slot, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot; S2. On the electronic design drawing of the ultra-short slot, the first guide hole is arranged to be inscribed with one side of the ultra-short slot in the direction of maximum length, and the second guide hole is arranged to be inscribed with the other side of the ultra-short slot in the direction of maximum length, thereby determining the drilling positions of the first guide hole and the second guide hole; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole and the second guide hole, and control the slotting cutter to cut the first guide hole and the second guide hole to form the ultra-short slot.

2. The method for machining an ultra-short slot according to claim 1, characterized in that: Said S2 further comprises: By adjusting the size of the drill hole diameter, the distance between the first guide hole and the second guide hole is controlled to be greater than or equal to a preset distance.

3. The method for machining an ultra-short slot according to claim 1, wherein: Said S1 comprises: The drilling diameter is calculated based on the maximum length of the ultra-short slot, and the expression is as follows: (L / 2)-d; Wherein, L represents the maximum length of the ultra-short slot, and d represents the preset deviation.

4. The method for machining an ultra-short slot according to claim 1, wherein: The S3 also includes: The drill bit travel setting is completed through a preset optimization algorithm according to the aspect ratio of the ultra-short slot, the diameter of the slotting cutter and the material properties of the target object.

5. The method for machining an ultra-short slot according to claim 1, wherein: The S1 also includes: S0. Importing an electronic design drawing of the ultra-short slot into an image software, and analyzing the electronic design drawing to obtain a maximum length of the ultra-short slot.

6. An ultra-short slot processing device, comprising a main control device, a drilling device and a slot cutter driving device, wherein the main control device is electrically connected to the drilling device and the slot cutter driving device, and is characterized in that: The main control device is used to perform the following steps: S1. Setting the drilling diameters of the first guide hole and the second guide hole according to the maximum length of the ultra-short slot, wherein the drilling diameters are smaller than half of the maximum length of the ultra-short slot; S2. On the electronic design drawing of the ultra-short slot, the first guide hole is arranged to be inscribed with one side of the ultra-short slot in the direction of maximum length, and the second guide hole is arranged to be inscribed with the other side of the ultra-short slot in the direction of maximum length, thereby determining the drilling positions of the first guide hole and the second guide hole; S3. Perform a drilling operation on the target object according to the drilling diameter and the drilling position to form the first guide hole and the second guide hole, and control the slotting cutter to cut the first guide hole and the second guide hole to form the ultra-short slot.

7. The ultra-short slot processing equipment according to claim 6, characterized in that: Said S2 further comprises: By adjusting the size of the drill hole diameter, the distance between the first guide hole and the second guide hole is controlled to be greater than or equal to a preset distance.

8. The ultra-short slot processing equipment according to claim 6, characterized in that: Said S1 comprises: The drilling diameter is calculated based on the maximum length of the ultra-short slot, and the expression is as follows: (L / 2)-d; Wherein, L represents the maximum length of the ultra-short slot, and d represents the preset deviation.

9. The ultra-short slot processing equipment according to claim 6, characterized in that: The S3 also includes: The drill bit travel setting is completed through a preset optimization algorithm according to the aspect ratio of the ultra-short slot, the diameter of the slotting cutter and the material properties of the target object.

10. The ultra-short slot processing equipment according to claim 6, characterized in that: The S1 also includes: S0. Importing an electronic design drawing of the ultra-short slot into an image software, and analyzing the electronic design drawing to obtain a maximum length of the ultra-short slot.

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