Cutting device for high-precision drill bit machining and cutting method of cutting device

Abstract

The invention relates to the technical field of drill bit machining, and provides a high-precision cutting device for drill bit machining and a cutting method thereof.The high-precision cutting device comprises a workbench and a vertical plate installed at the top end of the workbench; a shell is installed on one side of the top end of the workbench, a base is arranged on one side of the shell, and a collecting groove is formed in the side, away from the shell, of the base. The cutting mechanism is arranged, a movable block rotates to pull a connecting block to turn over through a driving shaft, an upper sliding table and a lower sliding table are driven to move oppositely or separately, a blade fixed to the upper sliding table and the lower sliding table cuts two sets of drill bit blanks in the middle at the same time, the function of cutting up and down at the same time is achieved, and the cutting efficiency is remarkably improved; and the cutting force can be dispersed and the vibration in the cutting process can be reduced in a vertical simultaneous cutting mode, so that burrs and cracks generated in the cutting process are reduced, the cutting quality is improved, accumulated scraps and dust on the cutting edge are swept off during cutting, the dust removal effect is achieved, and the service life of the blade is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of drill bit processing, and in particular to a cutting device for high-precision drill bit processing and a cutting method thereof. Background Art

[0002] High-precision drill bits typically consist of a drill body, cutting edge, and shank, and can be customized to meet different processing requirements. They are compact, efficient, and precise, making them widely used in industrial manufacturing. During production, these high-precision drill bits require the steel used to make the drill bits to be cut into workpieces that meet specific dimensions. They feature high precision, automation, and versatility. They play an important role in fields such as machinery manufacturing, aerospace, and oil drilling.

[0003] The above-mentioned existing technical solutions have the following defects: when cutting the drill blank, a single downward cut is usually performed. During the processing, the processing accuracy may be reduced due to factors such as concentrated cutting force and vibration, resulting in burrs and cracks on the material surface, affecting the cutting quality;

[0004] During long-term cutting, a small amount of chips will accumulate on the blade edge, causing wear on the blade edge, increasing the friction coefficient and cutting force, and reducing the service life of the blade. Summary of the Invention

[0005] The purpose of the present invention is to provide a cutting device for high-precision drill bit processing and a cutting method thereof, so as to solve the defects of the existing cutting device for high-precision drill bit processing, such as insufficient cutting accuracy and inconvenience in cleaning.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a cutting device for high-precision drill bit processing and a cutting method thereof, comprising a workbench and a vertical plate installed on the top thereof; a shell is installed on one side of the top of the workbench, and a base is provided on one side of the shell, a collecting trough is placed on the side of the base away from the shell, and a cutting mechanism is installed in the middle position of the base; the cutting mechanism comprises a fixed plate, a connecting block, a first servo motor, a movable block, a bracket and a blade; the fixed plate is installed in the middle position of the base, a movable block is provided on the top of one side of the fixed plate, and a first servo motor is installed on one side of the movable block, a connecting block is provided on one side of the fixed plate, blades are symmetrically installed on one side of the fixed plate, and brackets are provided at both ends of the blade.

[0007] Preferably, a limiting groove is provided on the top of the workbench on one side of the base, and a convex strip is provided on the bottom end of the collecting groove, and the outer diameter of the convex strip is consistent with the inner diameter of the limiting groove.

[0008] Preferably, one end of the fixing plate is mounted on the vertical plate, a slide rail is mounted on the bottom end of the fixing plate, an upper slide platform is provided on the top of the slide rail, and a lower slide platform is provided on the bottom of the slide rail.

[0009] Preferably, the relative positions of the upper slide and the lower slide are both installed with the blade, rollers are installed at both ends of one side of the upper slide and the lower slide, and a sliding structure is formed between the upper slide, the lower slide and the slide rail.

[0010] Preferably, the connecting block is triangular in shape, and a driving shaft is hinged on one side of the top corner of the connecting block, an upper connecting shaft is hinged on one end of the connecting block, and the bottom end of the upper connecting shaft is hinged to one side of the upper slide, and a lower connecting shaft is hinged on the bottom end of the connecting block, and the bottom end of the lower connecting shaft is hinged to one side of the lower slide.

[0011] Preferably, the bracket is installed between the base, and the bracket is symmetrically distributed about the center line of the blade. Brush plates are provided on both sides of the inside of the bracket, and the tops of the brush plates are hinged with connecting rods.

[0012] Preferably, the end of the connecting rod away from the brush plate is hinged to the upper slide and the lower slide respectively, and sliding grooves are provided on both sides of the inner wall of the bracket, and sliders are installed on one side of the brush plate inside the sliding groove. A sliding structure is formed between the slider and the sliding groove, and balls are provided at the top and bottom ends of the slider.

[0013] Preferably, fixed shafts are longitudinally installed at the top and bottom of the shell, and conveying shafts are installed outside the fixed shafts.

[0014] Preferably, one end of each of the fixed shafts is provided with a gear, and the gears are meshed and connected with each other, and one end of the fixed shaft is installed with a second servo motor.

[0015] A cutting method of a cutting device for high-precision drill bit processing, comprising the following steps:

[0016] S1. Preparation: Pass two sets of drill bit blanks through the conveyor shaft to the unloading area at the top of the base. Activate the second servo motor to rotate the conveyor shaft and gears. The meshing of the gears causes the conveyor shaft at the bottom to reverse, thus conveying the drill bit blanks.

[0017] S2. Cutting: The first servo motor is activated to rotate the movable block, which is then pulled by the drive shaft to flip the connecting block. During this flipping process, the upper and lower connecting shafts pull or push the upper and lower slides toward or away from each other. Blades positioned relative to each other on the upper and lower slides simultaneously cut the two sets of drill bit blanks being delivered.

[0018] S3. Cleaning: While the blade is cutting, the connecting rod drives the brush plate to slide in the slide slot in the bracket, sweeping away accumulated chips and dust from the blade edge. During the cutting process, the brush plate reciprocates to clean the blade.

[0019] S4. Collection: The drill bit blanks after cutting are pushed to one side of the base by the subsequent drill bit blanks and fall into the inside of the collection trough. The cut drill bit blanks are collected. The staff can directly lift the collection trough to carry the cut drill bit blanks. When placing them, the convex strips and the limit grooves are matched to avoid displacement of the collection trough.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the cutting device for high-precision drill bit processing can cut the drill bit blank simultaneously from top to bottom, thereby reducing burrs and cracks generated during the cutting process and improving the cutting quality. In addition, the brush plate can sweep away the accumulated chips and dust on the cutting edge of the blade during cutting, thereby achieving a dust cleaning effect and a certain cooling effect, thereby extending the service life of the blade.

[0021] By providing a cutting mechanism, the movable block rotates and pulls the connecting block to flip through the driving shaft, driving the upper slide and the lower slide to move relative to or apart, so that the blades fixed thereto cut the two sets of drill bit blanks in the middle position at the same time, realizing the function of simultaneous cutting up and down, which significantly improves the cutting efficiency. The simultaneous cutting up and down can disperse the cutting force, reduce the vibration during the cutting process, thereby reducing the burrs and cracks generated during the cutting process and improving the cutting quality.

[0022] Furthermore, while cutting, the brush plate is driven by the connecting rod to reciprocate on both sides of the blade, sweeping away the accumulated chips and dust on the blade edge, reducing the friction coefficient of the cutting edge, ensuring the accuracy and stability of processing, and the reciprocating motion of the brush plate accelerates the air circulation around the cutting edge. At the same time, the temperature of the brush plate itself is lower than that of the cutting edge after cutting, thereby achieving a certain cooling effect and extending the service life of the blade;

[0023] By providing a conveying shaft and connecting the gears in meshing manner, the two sets of conveying shafts can rotate relative to each other to realize the conveyance of the drill blank. By controlling the output speed of the second servo motor, the cutting length of the drill blank is adjusted. The shape of the groove on the outside of the conveying shaft matches the drill blank, which plays a certain limiting function in the process of conveying it, so that the drill blank is conveyed to the discharge area on the top of the base, thereby ensuring the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the housing of the present invention when it is disassembled;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the housing of the present invention in a disassembled state from a side view;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the base of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the slide rail of the present invention from a top view;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the slide rail of the present invention when viewed from above;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the blade in the cutting state of the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the left side of the upper slide platform of the present invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the right side of the upper slide platform of the present invention;

[0033] Figure 10 This is a schematic diagram of the three-dimensional structure of the stent of the present invention in a cutaway state;

[0034] Figure 11 For the present invention Figure 7 A partial enlarged schematic diagram of the three-dimensional structure in the middle.

[0035] Explanation of the reference numerals in the figure: 1. workbench; 2. base; 3. collecting trough; 31. limiting groove; 32. convex strip; 4. cutting mechanism; 41. fixing plate; 411. upper slide; 412. lower slide; 413. slide rail; 414. roller; 42. connecting block; 421. driving shaft; 422. upper connecting shaft; 423. lower connecting shaft; 43. first servo motor; 44. movable block; 45. bracket; 451. brush plate; 452. connecting rod; 453. slider; 454. slide; 46. blade; 5. vertical plate; 6. outer shell; 61. conveying shaft; 62. second servo motor; 63. gear; 64. fixed shaft. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-11The present invention provides a cutting device for high-precision drill bit processing and a cutting method thereof, which include a workbench 1 and a vertical plate 5 installed on the top thereof; a shell 6 is installed on one side of the top of the workbench 1, and a base 2 is provided on one side of the shell 6, a collecting tank 3 is placed on the side of the base 2 away from the shell 6, and a cutting mechanism 4 is installed in the middle position of the base 2; a limiting groove 31 is provided on the top of the workbench 1 on one side of the base 2, and a convex strip 32 is provided at the bottom end of the collecting tank 3, and the outer diameter of the convex strip 32 is consistent with the inner diameter of the limiting groove 31, a fixed shaft 64 is longitudinally installed at the top and bottom of the inside of the shell 6, and a conveying shaft 61 is installed on the outside of the fixed shaft 64, a gear 63 is provided at one end of the fixed shaft 64, and the gears 63 are meshed and connected with each other, and a second servo motor 62 is installed at one end of the fixed shaft 64.

[0038] Reference Figure 1-Figure 3 As shown, the second servo motor 62 is started to drive the upper conveying shaft 61 and the gear 63 to rotate. Through the engagement between the two sets of gears 63, the lower conveying shaft 61 is reversed to convey the drill blank. The grooves arranged inside the conveying shaft 61 coincide with the drill blank, and play a certain limiting effect while conveying, ensuring its stability. At the same time, its external shell 6 plays a certain dust-proof effect, preventing dust and cutting debris from entering the inside of the shell 6 and sticking to the surface of the conveying shaft 61, causing scratches on the surface of the drill blank during the conveying process.

[0039] The cutting mechanism 4 includes a fixed plate 41, a connecting block 42, a first servo motor 43, a movable block 44, a bracket 45 and a blade 46; the fixed plate 41 is installed in the middle position of the base 2, a movable block 44 is provided on the top of one side of the fixed plate 41, and a first servo motor 43 is installed on one side of the movable block 44, a connecting block 42 is provided on one side of the fixed plate 41, a blade 46 is symmetrically installed on one side of the fixed plate 41, and brackets 45 are provided at both ends of the blade 46, one end of the fixed plate 41 is installed with the vertical plate 5, a slide rail 413 is installed at the bottom end of the fixed plate 41, and an upper slide 411 is provided on the top of the slide rail 413, and the bottom of the slide rail 413 is provided with a support 45. A lower slide 412 is provided, and the relative positions of the upper slide 411 and the lower slide 412 are installed with the blade 46. Rollers 414 are installed at both ends of one side of the upper slide 411 and the lower slide 412, and the upper slide 411 and the lower slide 412 form a sliding structure with the slide rail 413. The connecting block 42 is triangular in shape, and one side of the top angle of the connecting block 42 is hinged with a drive shaft 421, one end of the connecting block 42 is hinged with an upper connecting shaft 422, and the bottom end of the upper connecting shaft 422 is hinged to one side of the upper slide 411, the bottom end of the connecting block 42 is hinged with a lower connecting shaft 423, and the bottom end of the lower connecting shaft 423 is hinged to one side of the lower slide 412.

[0040] Reference Figure 4-Figure 7As shown, the first servo motor 43 is started to drive the movable block 44 to rotate, and the connecting block 42 is pulled to flip through the driving shaft 421. The connecting block 42 is triangular in shape. During the flipping process, the upper slide 411 is pushed downward by the upper connecting shaft 422, and the lower slide 412 is pulled upward by the lower connecting shaft 423, so that the blades 46 set at the relative positions of the upper slide 411 and the lower slide 412 can cut the two groups of drill blanks delivered at the same time. When the first servo motor 43 continues to rotate, it drives the connecting block 42 to flip and reset, and drives the upper slide 411 and the lower slide 412 to reset through the upper connecting shaft 422 and the lower connecting shaft 423. At the same time, the rollers 414 set inside the upper slide 411 and the lower slide 412 make it smoother when sliding outside the slide rail 413, reducing friction, and realizing the function of cutting the drill blank simultaneously up and down.

[0041] The bracket 45 is installed between the base 2, and the bracket 45 is symmetrically distributed about the center line of the blade 46. Brush plates 451 are provided on both sides of the inside of the bracket 45, and the top of the brush plate 451 is hinged with a connecting rod 452. The end of the connecting rod 452 away from the brush plate 451 is hinged to the upper slide 411 and the lower slide 412 relative to each other. Slide grooves 454 are provided on both sides of the inner wall of the bracket 45, and a slider 453 is installed on one side of the brush plate 451 inside the slide groove 454. A sliding structure is formed between the slider 453 and the slide groove 454, and balls are provided at the top and bottom ends of the slider 453.

[0042] Reference Figures 8-11 As shown, during cutting, the upper slide 411 moves downward and drives the brush plate 451 to slide outward in the slide groove 454 in the bracket 45 through the connecting rod 452, and the lower slide 412 moves upward, and also drives the brush plate 451 to slide outward through the connecting rod 452, so as to sweep away the accumulated chips and dust on the cutting edge of the blade 46. During the cutting process, the brush plate 451 moves back and forth to clean the blade 46, and the slider 453 slides inside the slide groove 454. The ball bearings arranged at its two ends can reduce friction, making the brush plate 451 slide more smoothly. At the same time, the brush plate 451 is a soft brush to avoid wear of the blade caused by too hard bristles, and the reciprocating motion of the brush plate 451 accelerates the air circulation around the cutting edge, which has a certain heat dissipation effect.

[0043] A cutting method of a cutting device for high-precision drill bit processing, comprising the following steps:

[0044] S1. Preparation: Pass two sets of drill bit blanks through the conveyor shaft 61 to the discharge area at the top of the base 2. Start the second servo motor 62 to rotate one set of conveyor shafts 61 and gears 63. The meshing of gears 63 causes the bottom conveyor shaft 61 to reverse, achieving the conveyance of the drill bit blanks.

[0045] S2. Cutting: The first servo motor 43 is activated to rotate the movable block 44, which is then pulled by the drive shaft 421 to flip the connecting block 42. During this flipping process, the upper and lower connecting shafts 422 and 423 pull or push the upper and lower slides 411 and 412 toward or away from each other. Blades 46 positioned relative to the upper and lower slides 411 and 412 simultaneously cut the two sets of drill bit blanks being delivered.

[0046] S3. Cleaning: While the blade 46 is cutting, the brush plate 451 is driven by the connecting rod 452 to slide in the chute 454 in the bracket 45, sweeping away the accumulated debris and dust at the edge of the blade 46. During the cutting process, the brush plate 451 reciprocates to clean the blade 46;

[0047] S4. Collection: The drill bit blanks after cutting are pushed to one side of the base 2 by the subsequent conveyed drill bit blanks and fall into the inside of the collecting tank 3. The cut drill bit blanks are collected. The staff can directly lift the collecting tank 3 to carry the cut drill bit blanks. When placing them, the convex strip 32 and the limiting groove 31 are matched to avoid displacement of the collecting tank 3.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting device for high-precision drill bit processing, comprising a workbench (1) and a vertical plate (5) mounted on the top of the workbench; Its characteristics are: A shell (6) is installed on one side of the top of the workbench (1), and a base (2) is provided on one side of the shell (6); a collecting tank (3) is placed on the side of the base (2) away from the shell (6), and a cutting mechanism (4) is installed in the middle of the base (2); The cutting mechanism (4) comprises a fixed plate (41), a connecting block (42), a first servo motor (43), a movable block (44), a bracket (45) and a blade (46); The fixing plate (41) is installed at the middle position of the base (2), a movable block (44) is provided on the top of one side of the fixing plate (41), and a first servo motor (43) is installed on one side of the movable block (44), a connecting block (42) is provided on one side of the fixing plate (41), a blade (46) is symmetrically installed on one side of the fixing plate (41), and brackets (45) are provided at both ends of the blade (46).

2. A cutting device for high-precision drill bit processing according to claim 1, characterized in that: A limiting groove (31) is provided at the top of the workbench (1) on one side of the base (2), and a convex strip (32) is provided at the bottom end of the collecting groove (3), and the outer diameter of the convex strip (32) matches the inner diameter of the limiting groove (31).

3. The cutting device for high-precision drill bit processing according to claim 1, characterized in that: One end of the fixing plate (41) is mounted on the vertical plate (5), a slide rail (413) is mounted on the bottom end of the fixing plate (41), an upper slide platform (411) is provided on the top of the slide rail (413), and a lower slide platform (412) is provided on the bottom of the slide rail (413).

4. A cutting device for high-precision drill bit processing according to claim 3, characterized in that: The relative positions of the upper slide (411) and the lower slide (412) are both installed with the blade (46), and rollers (414) are installed at both ends of one side of the upper slide (411) and the lower slide (412), and a sliding structure is formed between the upper slide (411) and the lower slide (412) and the slide rail (413).

5. The cutting device for high-precision drill bit processing according to claim 3, characterized in that: The connecting block (42) is triangular in shape, and a driving shaft (421) is hinged on one side of the top corner of the connecting block (42), an upper connecting shaft (422) is hinged on one end of the connecting block (42), and the bottom end of the upper connecting shaft (422) is hinged on one side of the upper slide (411), and a lower connecting shaft (423) is hinged on the bottom end of the connecting block (42), and the bottom end of the lower connecting shaft (423) is hinged on one side of the lower slide (412).

6. The cutting device for high-precision drill bit processing according to claim 1, characterized in that: The bracket (45) is installed between the base (2), and the bracket (45) is symmetrically distributed about the center line of the blade (46). Brush plates (451) are provided on both sides of the inside of the bracket (45), and the tops of the brush plates (451) are hinged with connecting rods (452).

7. A cutting device for high-precision drill bit processing according to claim 6, characterized in that: One end of the connecting rod (452) away from the brush plate (451) is hinged to the upper slide (411) and the lower slide (412) at relative positions, and both sides of the inner wall of the bracket (45) are provided with a slide groove (454), and a slider (453) is installed on one side of the brush plate (451) inside the slide groove (454). A sliding structure is formed between the slider (453) and the slide groove (454), and the top and bottom ends of the slider (453) are provided with balls.

8. The cutting device for high-precision drill bit processing according to claim 1, characterized in that: A fixed shaft (64) is longitudinally installed at the top and bottom of the interior of the housing (6), and a conveying shaft (61) is installed outside the fixed shaft (64).

9. A cutting device for high-precision drill bit processing according to claim 8, characterized in that: One end of each fixed shaft (64) is provided with a gear (63), and the gears (63) are meshed and connected with each other. One end of the fixed shaft (64) is installed with a second servo motor (62).

10. A cutting method using the cutting device for high-precision drill bit processing according to claim 9, comprising the following steps, characterized in that: S1. Preparation: Pass two sets of drill bit blanks to be processed through the conveying shaft (61) to the discharge area on the top of the base (2), start the second servo motor (62) to drive a set of conveying shafts (61) and gears (63) to rotate, and through the engagement between the gears (63), the conveying shaft (61) at the bottom is reversed to achieve the conveying of the drill bit blanks; S2. Cutting: The first servo motor (43) is started to drive the movable block (44) to rotate, and the connecting block (42) is pulled to flip through the driving shaft (421). During the flipping process, the upper connecting shaft (422) and the lower connecting shaft (423) pull or push the upper slide (411) and the lower slide (412) to move relative to or apart from each other, and the blades (46) arranged at the relative positions of the upper slide (411) and the lower slide (412) simultaneously cut the two groups of drill bit blanks delivered; S3. Cleaning: While the blade (46) is cutting, the brush plate (451) is driven by the connecting rod (452) to slide in the chute (454) in the bracket (45), sweeping away the accumulated debris and dust at the edge of the blade (46). During the cutting process, the brush plate (451) reciprocates to clean the blade (46); S4. Collection: After the cut drill bit blanks are pushed to one side of the base (2) by the subsequent transported drill bit blanks, they fall into the inside of the collection trough (3). The cut drill bit blanks are collected. The staff can directly lift the collection trough (3) and carry the cut drill bit blanks. When placing them, the convex strips (32) and the limiting grooves (31) are in contact with each other to avoid displacement of the collection trough (3).

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