CN115647728A

CN115647728A - Processing method for removing residual angles of PCS (Process control System) plate

Info

Publication number: CN115647728A
Application number: CN202210937295.XA
Authority: CN
Inventors: 曹名花; 伍进喜
Original assignee: Quanchengxin Electronics Shenzhen Co ltd
Current assignee: Quanchengxin Electronics Shenzhen Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-01-31

Abstract

The invention provides a processing method for removing residual angles of a PCS (personal communications System) plate, which comprises the following steps of: the method comprises the following steps: in CNC machining, a basic fillet is machined between two adjacent PCS plates through a milling cutter; step two: replacing the milling cutter with a drill cutter, and drilling a hole on a V-shaped included angle formed by two adjacent base fillets through the drill cutter; step three: replacing the drill with a smaller hole-forming diameter; step four: drilling again after the replaced drill bit deviates towards the inner side direction of the included angle at the previous hole position; step five: repeating the third step and the fourth step until the drilling of the drill with the minimum aperture is finished, and drilling out the residual angle between two adjacent basic fillets to finish machining; after the fillet at the edge of the PCS plate is primarily milled, the mode of adding drilling is adopted to remove the residual angle which cannot be milled off during the fillet forming, the fillet edge is smoother after the plate forming is ensured, the influence on the appearance and subsequent assembly of the PCS plate is avoided, and the PCS plate has high popularization value.

Description

Processing method for removing residual angles of PCS (Process control System) plate

Technical Field

The invention relates to the technical field of circuit board processing, in particular to a processing method for removing residual angles of a PCS (personal communications System) board.

Background

At present, products without internal positioning are increased gradually during shape processing, and the existing shape machine cannot effectively produce the products of the type, so that an operator needs to press the products with hands or stick the products to the bottom with an adhesive tape in the production process, and the method is high in danger and easily causes adhesive marks to stick on a plate surface. The plate corners of the single PCS plate need to be designed into circular arc shapes according to assembly requirements, two or more single PCS plates need to be designed into a makeup mode for production in order to improve production efficiency and improve material utilization rate, and after makeup, two plate corners of two adjacent PCS plates form a V-shaped included angle.

In the prior art, when CNC (computer numerical control) molding is carried out, the molding milling cutter is a circular cutter, and the diameter of the milling cutter is only 0.8mm at minimum; the width of the V-shaped clamp angle is smaller than 0.8mm, a milling cutter cannot enter the V-shaped clamp angle, an arc angle meeting requirements cannot be milled, a residual angle is formed, the residual angle firstly influences the overall attractiveness of the PCS plate, and secondly influences subsequent assembly, so that a new processing method is urgently needed to solve the problems in the prior art.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides the processing method for removing the residual angles of the PCS plate, the residual angles which cannot be milled off in the process of forming the fillet are removed in a drilling mode after the fillet at the edge of the PCS plate is primarily milled, the fillet edge is ensured to be smoother after the plate is formed, the influence on the appearance and subsequent assembly of the PCS plate is avoided, and the method has high popularization value.

In order to achieve the purpose, the invention provides a processing method for removing residual angles of a PCS plate, which comprises the following steps:

the method comprises the following steps: in CNC machining, a basic fillet is machined between two adjacent PCS plates through a milling cutter;

step two: replacing the milling cutter with a drill cutter, and drilling a hole on a V-shaped included angle formed by two adjacent base fillets through the drill cutter;

step three: changing the drill cutter into a drill cutter with smaller hole-forming diameter;

step four: drilling again after the changed drill cutter deflects towards the inner side direction of the included angle at the previous hole position;

step five: and repeating the third step and the fourth step until the drilling of the drill with the minimum aperture is finished, and drilling the residual angle between two adjacent basic fillets to finish machining.

Specifically, in step 1, the PCS plates are processed after being spliced, and the milling cutter mills corners of the PCS plates along the corners to form a base fillet.

Preferably, the milling cutter is a milling cutter with the diameter of 0.8mm-1 mm.

Specifically, in the second step, the drill cutter drills holes at the residual corner positions on the V-shaped clamp corners formed by the two adjacent basic fillets.

Preferably, the drill is the first drill with the largest diameter, and the drilling diameter of the first drill is 1mm.

Specifically, in the third step, the hole-forming diameter of the replaced drill bit is at least 0.01mm smaller than the hole-forming diameter of the drill bit after drilling.

Specifically, in the fourth step, the offset drill bit and the previous hole site have an overlapping part, and the overlapping part proportion is at least 80%.

Specifically, in the fifth step, the diameter of the hole drilled by the minimum-diameter drill bit is 0.25 mm-0.35 mm.

Preferably, the minimum aperture drill bit is selected to have the same minimum aperture in the PCS plate.

Specifically, each drilling forms a hole which is tangent to the plate edge line of two adjacent PCS plates at the same time.

The invention has the beneficial effects that: compared with the prior art, the processing method for removing the residual angles of the PCS plate, provided by the invention, comprises the following steps: the method comprises the following steps: in CNC machining, a basic fillet is machined between two adjacent PCS plates through a milling cutter; step two: replacing the milling cutter with a drill cutter, and drilling a hole on a V-shaped included angle formed by two adjacent base fillets through the drill cutter; step three: replacing the drill with a smaller hole-forming diameter; step four: drilling again after the replaced drill bit deviates towards the inner side direction of the included angle at the previous hole position; step five: repeating the third step and the fourth step until the drilling of the drill with the minimum aperture is finished, and drilling out residual angles between two adjacent basic fillets to finish machining; after the fillet at the edge of the PCS plate is primarily milled, the mode of adding drilling is adopted to remove the residual angle which cannot be milled off during the fillet forming, the fillet edge is smoother after the plate forming is ensured, the influence on the appearance and subsequent assembly of the PCS plate is avoided, and the PCS plate has high popularization value.

Drawings

FIG. 1 is a schematic view of the process of the present invention;

FIG. 2 is a flow chart of the method of the present invention.

Detailed Description

In order to more clearly describe the present invention, the present invention is further described below with reference to the accompanying drawings.

In the following description, details of general examples are given to provide a more thorough understanding of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. It should be understood that the specific embodiments are illustrative of the invention and are not to be construed as limiting the invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In the prior art, when CNC (computer numerical control) molding is carried out, the molding milling cutter is a round cutter, and the diameter of the milling cutter is only 0.8mm at minimum; the width of the V-shaped clamp angle is smaller than 0.8mm, a milling cutter cannot enter the V-shaped clamp angle, an arc angle meeting requirements cannot be milled, a residual angle is formed, the residual angle firstly influences the overall attractiveness of the PCS plate, and secondly influences subsequent assembly, so that a new processing method is urgently needed to solve the problems in the prior art.

In order to solve the defects and shortcomings in the prior art, the invention specifically provides a processing method for removing residual angles of a PCS plate, and please refer to fig. 1-2, which comprises the following steps:

the method comprises the following steps: in CNC machining, a basic fillet is machined between two adjacent PCS plates through a milling cutter; the milling function of the milling cutter is milling, and in CNC machining of PCS plates, because the milling cutter is usually a round cutter, and the diameter is usually 0.8mm at the minimum, the milling of the fillet between two PCS plates is usually not completely formed, only a base fillet is formed, which is a semi-finished product with a non-milled partial residual angle.

Step two: replacing the milling cutter with a drill cutter, and drilling a hole on a V-shaped included angle formed by two adjacent base fillets through the drill cutter; and drilling a hole on the V-shaped included angle of the base fillet residual angle part by the drill for the first time, and drilling off the outermost edge part.

Step three: replacing the drill with a smaller hole-forming diameter; after the last drilling is completed, the outermost part of the residual angle of the V-shaped clamp angle is usually reduced, so that a smaller drill bit needs to be replaced for drilling in a smaller range.

Step four: drilling again after the changed drill cutter deflects towards the inner side direction of the included angle at the previous hole position; in the step, the outermost part of the V-shaped clamp angle residual angle can be further cut off by drilling after the deviation, and the outermost part of the V-shaped clamp angle residual angle is cut off at one point through multiple times of deviation drilling, so that the cutting off of the whole V-shaped clamp angle residual angle is completed.

Step five: repeating the third step and the fourth step until the drilling of the drill with the minimum aperture is finished, and drilling out residual angles between two adjacent basic fillets to finish machining; and after the fourth step is finished, repeating the step of changing the smaller drill cutter in the third step, and repeating the step of drilling again in the fourth step after the step is finished, repeating the steps for multiple times until the drill cutter with the minimum aperture finishes drilling, finishing the cutting of the whole residual angle of the V-shaped included angle, and finishing the machining.

In this embodiment, in step 1, the PCS plates are processed after being impossed, and a milling cutter mills the PCS plates along the corners at the corner positions of each PCS plate to process a base fillet; a plurality of PCS plates are spliced to be convenient to process, the cost is saved, and the processing efficiency is improved.

In a preferred embodiment, the milling cutter is 0.8mm-1mm in diameter.

Preferably, a 0.8mm milling cutter is used.

In this embodiment, in the second step, a drill specifically drills a hole at a residual corner position on a V-shaped included corner formed by two adjacent basic rounded corners; specifically, the outermost part of the V-shaped corner residual angle is cut off.

In a preferred embodiment, the drill is the first drill with the largest diameter, the drill hole diameter of which is 1mm.

In the embodiment, it is mentioned that, in the third step, the hole-forming diameter of the replaced drill bit is at least 0.01mm smaller than the hole-forming diameter of the drill bit after the drilling is finished; the smaller the reduction of the drill bit selected for one time is, the more the machining times are, but the higher the smoothness of the machined fillet can be ensured.

In this embodiment, it is mentioned that in step four, the offset drill bit has an overlapping portion with the previous hole site, the overlapping portion is at least 80%, and an overlapping portion of 80% means that the blank portion is 80%, and the remaining chamfered portion is 20%, and the cutting with a lower ratio can ensure the smoothness of the round corner after cutting.

In this embodiment, in step five, the minimum diameter drill has a bore diameter of 0.25mm to 0.35mm.

Preferably, 0.25mm is used.

In a preferred embodiment, the minimum aperture drill bit is selected from the aperture with the same minimum aperture in the PCS plate; the drill tool adopted when the PCS plate can be directly adopted for drilling is selected, and the additional increase of the specification of the drill tool is avoided.

In the embodiment, the hole formed by drilling each time is simultaneously tangent to the plate edge lines of two adjacent PCS plates; the tangency can ensure that the unexpected residual angle of the fillet is cut off to the maximum extent during drilling, multiple times of drilling is avoided, and complex processing steps are formed.

The invention has the advantages that:

after the fillet at the edge of the PCS plate is primarily milled, the residual angle which cannot be milled off in the process of forming the fillet is removed in a drilling adding mode, the fillet edge is smoother after the plate is formed, the influence on the appearance and subsequent assembly of the PCS plate is avoided, and the method has high popularization value.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A processing method for removing residual angles of PCS plates is characterized by comprising the following steps:

step three: replacing the drill with a smaller hole-forming diameter;

step four: drilling again after the replaced drill bit deviates towards the inner side direction of the included angle at the previous hole position;

step five: and repeating the third step and the fourth step until the drilling of the drill cutter with the minimum aperture is finished, and drilling out the residual angle between two adjacent basic fillets to finish machining.

2. The process of claim 1, wherein in step 1, the PCS plates are assembled and then processed, and the milling cutter mills the PCS plates along the corners at the corner positions of each PCS plate to form the base fillet.

3. The process for removing the stub angles of the PCS plate as claimed in claim 2, wherein the milling cutter is a milling cutter having a diameter of 0.8mm to 1mm.

4. The machining method for removing the residual angles of the PCS plates as claimed in claim 1, wherein in the second step, the drill specifically drills the residual angle position on the V-shaped included angle formed by the adjacent two basic round angles.

5. The process for removing the residual angles on the PCS plate as claimed in claim 4, wherein the drill is a first drill with the largest diameter, and the diameter of the drill hole of the first drill is 1mm.

6. The process for removing residual angles on PCS plates as claimed in claim 1, wherein in step three, the diameter of the hole formed by the replaced drill is at least 0.01mm smaller than the diameter of the hole formed by the drill after drilling.

7. The process for removing residual angles on PCS plates as claimed in claim 1, wherein in step four, the offset drill bit overlaps the previous hole site by at least 80%.

8. The process for removing residual angles on PCS plates as claimed in claim 1, wherein in step five, the diameter of the hole drilled by the minimum diameter drill is 0.25mm to 0.35mm.

9. The process of claim 8 wherein the minimum diameter drill is selected to have the same minimum diameter as the PCS plate.

10. The process for removing the residual angles of PCS plates as claimed in claim 1, wherein each drilling forms a hole that is simultaneously tangent to the plate edge line of two adjacent PCS plates.