A drill bit machining debris conveying and collecting structure

Abstract

The utility model relates to mechanical processing auxiliary equipment technical field, concretely is a kind of drill bit processing chip conveying collection structure, including processing seat body, the top surface outer periphery of processing seat body extends downward and forms annular inclined surface, multiple chip guide grooves are arranged at annular inclined surface along the circumferential direction interval, the bottom end of chip guide groove is connected in common in the annular chip collection cavity being provided around the bottom of processing seat body top wall, the bottom of annular chip collection cavity is connected with external chip collection box by chip removal connecting pipe, and the inside of every chip guide groove is equipped with the wavy ridge array structure extending along length direction. This drill bit processing chip conveying collection structure can realize the omnidirectional rapid flow guide of chip, effectively prevent edge accumulation, improve chip removal efficiency and processing environmental safety.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for mechanical processing, specifically a structure for conveying and collecting drill bit processing debris. Background Technology

[0002] During the precision machining process of drill bits and other cutting tools, a large amount of metal chips are generated. If these chips are not removed in a timely and effective manner, they will not only affect the machining accuracy but may also interfere with equipment operation and even pose safety hazards. Therefore, setting up an effective chip guiding and collection structure around the machining station has become an indispensable part of modern machining systems.

[0003] Currently, common chip collection methods often involve setting a single inclined ramp or central chip discharge hole at the bottom of the machining stand, relying on gravity to allow the chips to flow to the chip collection box. However, this type of structure has obvious drawbacks in practical applications: when chips splash in all directions during machining, due to the lack of an effective circumferential flow path at the edge of the top surface of the machining stand, some chips are easily stuck at the edge of the table or get stuck in the gaps of the equipment. After long-term accumulation, not only is cleaning difficult, but it may also affect the positioning accuracy and machining stability of subsequent workpieces. At the same time, the splashed chips also pose a certain safety risk to the operators. Utility Model Content

[0004] The purpose of this utility model is to provide a drill bit machining chip conveying and collection structure to solve the problems mentioned in the background art, such as the easy retention of chips at the edge of the machining seat during the current drill bit machining process, poor flow leading to cleaning difficulties, affecting machining accuracy, and posing safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drill bit machining chip conveying and collection structure, including a machining base, the top surface of which extends downward to form an annular inclined surface. Multiple chip guide grooves are spaced circumferentially on the annular inclined surface. The bottom ends of the chip guide grooves are connected to an annular chip collection cavity located around the bottom of the top wall of the machining base. The bottom of the annular chip collection cavity is connected to an external chip collection box via a chip discharge connecting pipe. Each chip guide groove has an internal wave-shaped convex ridge array structure extending along its length. Preferably, the annular inclined surface extends outward and downward at a 15°-25° angle from the top edge of the machining base, its surface is a continuous curved surface, and the groove opening width gradually narrows from top to bottom, with a wear-resistant ceramic coating on the inner side of the groove wall. Preferably, the wave-shaped convex ridge array structure is composed of several arc-shaped protrusion units connected end-to-end, and these arc-shaped protrusion units are continuously arranged along the length of the chip guide groove. Preferably, the annular chip collection cavity is an annular cavity with chip inlets evenly distributed on the inner wall and correspondingly communicating with the outlet ends of each chip guide groove. The inner wall of the annular chip collection cavity is provided with spiral guide ribs. Preferably, the chip discharge connecting pipe is a detachable bent pipe structure, with one end threaded to the chip discharge port at the bottom of the annular chip collection cavity and the other end inclined downwards to connect to an external chip collection box. The chip discharge connecting pipe has an annular reinforcing rib in the middle. Preferably, multiple radial guide ribs are provided in the annular inclined surface area between adjacent chip guide grooves. The guide ribs extend from the outer edge of the annular inclined surface towards the chip guide groove opening and have a semi-circular convex cross-section.

[0006] Compared with existing technologies, the advantages of this invention are: the drill bit chip conveying and collection structure can achieve rapid all-round chip guidance, effectively preventing edge accumulation, improving chip removal efficiency and machining environment safety. This structure, through the design of an annular inclined surface on the machining base, combined with circumferentially distributed chip guide grooves, forms a surrounding flow path, allowing chips to quickly flow into the chip guide grooves under the action of coolant or cutting fluid, and flow smoothly along the wave-shaped convex ridge array structure, preventing chip entanglement and blockage. Subsequently, the chip-liquid mixture is concentrated and guided to the annular chip collection chamber, and discharged to the external chip collection box through the chip removal connection pipe, ensuring the efficient operation of the entire system. Attached Figure Description

[0007] Figure 1 This is a top view schematic diagram of a drill bit machining chip conveying and collection structure according to the present invention; Figure 2 This is a side sectional view of a drill bit machining chip conveying and collection structure according to the present invention; Figure 3 This is a partial structural diagram of the inner wall of the annular chip collection cavity of a chip conveying and collecting structure for drill bit processing according to this utility model.

[0008] In the figure: 1. Machining base; 2. Annular inclined surface; 3. Chip guide groove; 4. Annular chip collection cavity; 5. Chip discharge connecting pipe; 6. Wave-shaped convex rib array structure; 7. Spiral guide rib; 8. Guide rib. Detailed Implementation

[0009] 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.

[0010] Please see Figure 1-3This utility model provides a technical solution: a drill bit machining chip conveying and collection structure, including a machining base 1. The top surface of the machining base 1 extends downward to form an annular inclined surface 2. The annular inclined surface 2 is integrally formed with the machining base 1. Multiple chip guide grooves 3 are arranged circumferentially on the annular inclined surface 2. The chip guide grooves 3 are directly grooved on the annular inclined surface 2 by precision milling. The bottom ends of the chip guide grooves 3 are connected to an annular chip collection cavity 4 provided around the bottom of the top wall of the machining base 1. The annular chip collection cavity 4 and the machining base 1 are made by an integral casting process. The bottom of the annular chip collection cavity 4 is connected to an external chip collection box through a chip discharge connecting pipe 5. Furthermore, each chip guide groove 3 has a wave-shaped convex ridge array structure 6 extending along its length inside. The wave-shaped convex ridge array structure 6 is formed by die pressing or CNC machining. During drill bit machining, the chips generated mix with coolant or cutting fluid and splash outwards, landing on the annular inclined surface 2 of the machining base 1. Guided by the inclined surface, they flow circumferentially to the inlets of each chip guide groove 3. As the chip and liquid mixture flows towards the bottom within the chip guide groove 3, it is continuously disturbed by the wave-shaped convex ridge array structure 6, causing the strip-shaped or clump-shaped chips to slightly jump and break, effectively preventing entanglement or jamming and ensuring smooth flow. Each chip guide groove 3 collects the dispersed chips into the annular chip collection cavity 4 located at the bottom of the top wall of the machining base 1, achieving unified collection of chips from multiple circumferential points. The chips then pass through the chip discharge connecting pipe 5 at the bottom of the annular chip collection cavity 4. The chips are discharged into an external chip collection box for continuous automatic collection. This linkage structure forms an all-around flow path through the annular inclined surface 2 and the circumferentially distributed chip guide grooves 3, making up for the shortcomings of the traditional single chip discharge direction. Combined with the anti-clogging design of the wave-shaped convex ridge array structure 6, it significantly improves the uniformity and smoothness of chip flow, completely solving the problems of chip retention, cleaning difficulties, reduced machining accuracy, and safety hazards caused by the lack of circumferential flow paths at the edges in the existing technology. The annular inclined surface 2 is formed by extending outward and downward at a 15°-25° angle from the top edge of the machining base 1. Its surface is a continuous curved surface, and the width of the chip guide groove 3 gradually narrows from top to bottom. A wear-resistant ceramic coating is provided on the inner side of the groove wall. This structure can withstand the presence of coolant during machining. When debris splashes onto the annular inclined surface 2, it flows rapidly inward along the continuous curved surface under the guidance of the inclined angle, avoiding liquid stagnation or turbulence. The debris then enters the wide end of the chip guide groove 3. The groove opening gradually narrows from top to bottom, effectively capturing and dispersing the debris and concentrating its flow direction to prevent lateral scattering. At the same time, the wear-resistant ceramic coating on the inner wall of the chip guide groove 3 significantly improves the surface hardness and corrosion resistance of the groove. It can maintain structural integrity even under long-term scouring of metal debris and coolant, reducing the decrease in flow efficiency caused by wear, and ensuring that the debris flows smoothly to the bottom outlet under the influence of the liquid flow, thereby achieving a stable and long-lasting wet chip removal effect. The wave-shaped convex ridge array structure 6 is composed of several arc-shaped convex units connected end to end.The arc-shaped raised units are continuously arranged along the length of the chip guide groove 3. When chips containing coolant flow within the chip guide groove 3, the chips pass through the continuous arc-shaped raised units of the wave-shaped convex ridge array structure 6. The liquid flow and chips experience periodic lifting and slight jumping at the raised points, interrupting the continuous wall-hugging flow of long strip-shaped metal chips and effectively preventing them from entangled, accumulating, or bridging. At the same time, the trough areas between the arc-shaped raised units form local turbulence zones, enhancing the liquid's ability to flush and carry chips, making it easier for wet chips to separate and continue flowing downwards. This structure achieves self-cleaning and anti-clogging through physical disturbance without relying on external power, significantly improving the performance of the chip guide groove 3 under high-load machining conditions. To ensure chip removal stability, the annular chip collection chamber 4 is an annular cavity with chip inlets evenly distributed on its inner wall, corresponding to and communicating with the outlets of each chip guide groove 3. The inner wall of the annular chip collection chamber 4 is equipped with spiral guide ribs 7. This structure allows for the synchronous convergence of multiple circumferential chip streams when the chip mixture transported by each chip guide groove 3 enters the annular chip collection chamber 4 from its outlet, preventing localized accumulation. After entering the cavity, the mixture continues to flow downwards along the inner wall under the influence of gravity and liquid inertia. The spiral guide ribs 7 guide the material smoothly downwards along a spiral trajectory, effectively eliminating eddies and stagnant areas, enhancing flow continuity, and preventing chip accumulation or adhesion on the inner wall of the cavity, ensuring wet... The chip removal process is continuous, stable, and blockage-free. The chip removal connecting pipe 5 is a detachable bent pipe structure. One end is threaded to the chip removal port at the bottom of the annular chip collection cavity 4, and the other end is inclined downwards to connect to the external chip collection box. The chip removal connecting pipe 5 has an annular reinforcing rib in the middle. This structure ensures a secure seal between the detachable bent pipe and the annular chip collection cavity 4 when the mixture of chips and coolant in the annular chip collection cavity 4 enters the chip removal connecting pipe 5 through the bottom chip removal port, preventing leakage during transport. The downward-sloping pipe direction utilizes gravity-assisted discharge, allowing the wet chip mixture to flow smoothly into the external chip collection box, avoiding backflow or stagnation. Simultaneously, the annular reinforcing rib in the middle of the chip removal connecting pipe 5 effectively improves... The pipe structure is rigid to prevent bending deformation or loosening of the joints under long-term use or external forces. Multiple radial guide ribs 8 are provided in the annular inclined surface 2 area between adjacent chip guide grooves 3. The guide ribs 8 are fixed to the annular inclined surface 2 by welding. The guide ribs 8 extend from the outer edge of the annular inclined surface 2 towards the opening of the chip guide groove 3, and have a semi-circular convex cross-section. This structure effectively intercepts and guides the scattered chip-liquid mixture onto the annular inclined surface 2 when splashed chips mix with coolant during processing. This allows the mixture to quickly converge along the extension direction of the guide ribs 8 to the nearest inlet of the chip guide groove 3. Furthermore, its curved surface facilitates liquid adhesion and flow, enhancing the chip-carrying capacity.

[0011] Working principle: When using this drill bit to process the chip conveying and collection structure, the metal chips generated during the drilling process mix with the coolant or cutting fluid and splash outwards. The chip-fluid mixture falls onto the annular inclined surface 2 of the machining base 1 and flows inwards along the continuous curved surface under the guidance of the inclined angle. The scattered chips are intercepted by the radial guide ribs 8 set between adjacent chip guide grooves 3 and guided to the nearest chip guide groove 3 opening. At the same time, the width of the chip guide groove 3 opening gradually narrows from top to bottom, causing the chips to concentrate and enter the channel. On the surface of the wear-resistant ceramic coating, they continue to flow along the chip guide groove 3 with the fluid. The fluid flows towards the bottom, passing through the wave-shaped convex ridge array structure 6. As the fluid flows through this structure, it undergoes periodic slight rises and jumps, maintaining its flow state. Subsequently, the fluid mixture in each chip guide groove 3 is discharged from the outlet end into the corresponding chip inlet on the inner wall of the annular chip collection chamber 4. After entering the annular chip collection chamber 4, it flows smoothly down along the spiral trajectory under the guidance of the spiral guide ribs 7, and finally exits from the bottom of the annular chip collection chamber 4. It is then transported through the threaded chip discharge connecting pipe 5. The fluid mixture continues to flow in its downward-sloping pipe and is finally discharged into the external chip collection box, thus completing a series of operations.

[0012] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drill bit machining chip conveying and collecting structure, comprising a machining base (1), characterized in that: The outer periphery of the top surface of the machining base (1) extends downward to form an annular inclined surface (2). Multiple chip guide grooves (3) are arranged circumferentially on the annular inclined surface (2). The bottom ends of the chip guide grooves (3) are connected to an annular chip collection cavity (4) provided around the bottom of the top wall of the machining base (1). The bottom of the annular chip collection cavity (4) is connected to an external chip collection box through a chip discharge connecting pipe (5). Each chip guide groove (3) has a wave-shaped convex ridge array structure (6) extending along the length direction inside.

2. The drill bit machining chip conveying and collecting structure according to claim 1, characterized in that: The annular inclined surface (2) is formed by extending outward and downward at an angle of 15°-25° from the top edge of the processing base (1). Its surface is a continuous curved surface, and the width of the groove of the chip guide groove (3) gradually narrows from top to bottom, and a wear-resistant ceramic coating is provided on the inner side of the groove wall.

3. The drill bit machining chip conveying and collecting structure according to claim 1, characterized in that: The wave-shaped convex array structure (6) is composed of several arc-shaped protrusion units connected end to end in sequence. The arc-shaped protrusion units are arranged continuously along the length direction of the chip guide groove (3).

4. The drill bit machining chip conveying and collecting structure according to claim 1, characterized in that: The annular chip collection cavity (4) is an annular cavity with chip inlets evenly distributed on the inner sidewall and correspondingly connected to the outlet ends of each chip guide groove (3). The inner wall of the annular chip collection cavity (4) is provided with spiral guide ribs (7).

5. The drill bit machining chip conveying and collecting structure according to claim 1, characterized in that: The chip removal connecting pipe (5) is a detachable bent pipe structure. One end of it is threaded to the chip removal port at the bottom of the annular chip collection cavity (4), and the other end is inclined downward to connect to the external chip collection box. The chip removal connecting pipe (5) is provided with an annular reinforcing rib in the middle.

6. The drill bit machining chip conveying and collecting structure according to claim 1, characterized in that: Multiple radial guide ribs (8) are provided in the annular inclined surface (2) area between adjacent chip guide grooves (3). The guide ribs (8) extend from the outer edge of the annular inclined surface (2) towards the opening of the chip guide groove (3) and have a semi-circular protrusion in cross section.

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