CN114367821B - Beidou navigation handset structural member machining device and machining method thereof - Google Patents
Beidou navigation handset structural member machining device and machining method thereof Download PDFInfo
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- CN114367821B CN114367821B CN202210169528.6A CN202210169528A CN114367821B CN 114367821 B CN114367821 B CN 114367821B CN 202210169528 A CN202210169528 A CN 202210169528A CN 114367821 B CN114367821 B CN 114367821B
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Abstract
The invention discloses a Beidou navigation handset structural member machining device which comprises a machine tool, a cutting connecting plate, a taper shank, a first gear and a cutting head, wherein the cutting connecting plate is arranged on the machine tool; the bottom of the machine tool is provided with a rotation stopping power supply block, and a rotation stopping hole is formed in the rotation stopping power supply block; one end of the cutting connecting plate is fixed with a rotation stopping pin which is correspondingly inserted into the rotation stopping hole; the upper end of the taper shank is connected with the output end of the machine tool through a conical surface, and the taper shank is rotationally connected to the cutting connecting plate; the first gear is sleeved on the taper shank; the cutting head comprises a second gear, a cutting adjusting motor, a drill rod, a screw rod, a lifting rod, a hinge joint and two cutting blades; the second gear is meshed with the first gear, the drill rod is connected with the second gear, the screw is connected with the cutting adjusting motor, the lifting rod is in threaded sleeve joint with the screw, the hinge joint is connected with the lifting rod, the outer end of the cutting blade is fixedly hinged on the drill rod, and the inner end of the cutting blade is movably hinged with the hinge joint; according to the invention, the bottom of the hole is processed without replacing the blade, so that the drilling efficiency is improved.
Description
Technical Field
The invention relates to a processing device for a Beidou navigation handset structural part.
Background
The mounting framework of the Beidou navigation handset is made of aluminum magnesium alloy, and mounting threaded holes are required to be processed on the mounting framework after the Beidou navigation handset is formed by adopting a die-casting process; because the installation skeleton wall thickness is thinner, and present drill bit front end is the fixed toper sword structure of 118 degrees contained angles, and the toper pit that the screw bottom hole processing back hole bottom formed does not have an effect when attacking the tooth, because the existence of this pit can reduce the structural strength of this department on the contrary, though can flatten the toper pit through changing the blade, but can lead to the machining efficiency of installation skeleton to be lower.
Disclosure of Invention
The invention aims to overcome the defects and provides a Beidou navigation handset structural part processing device.
In order to achieve the purpose, the invention adopts the following specific scheme:
a Beidou navigation handset structural member processing device comprises a machine tool, a cutting connecting plate, a taper shank, a first gear and a cutting head;
a rotation stopping power supply block is arranged at the bottom of the machine tool, and a rotation stopping hole is formed in the rotation stopping power supply block; a rotation stopping pin is fixed at one end of the cutting connecting plate and is correspondingly inserted into the rotation stopping hole; the upper end of the taper shank is connected with the output end of the machine tool through a conical surface, and the lower end of the taper shank is rotatably connected to one end of the cutting connecting plate; the first gear is fixedly sleeved at the lower end of the taper shank;
the cutting head comprises a second gear, a cutting adjusting motor, a drill rod, a screw rod, a lifting rod, a hinge joint and two cutting blades;
the utility model discloses a cutting device, including cutting connecting plate, first gear, lifting rod, second gear, cutting adjustment motor, screw rod, lifting rod, hinge joint, second gear rotation connection on the other end of cutting connecting plate and with first gear engagement, cutting adjustment motor fixed mounting is in the up end of second gear, the upper end of drilling rod runs through behind the other end of cutting connecting plate and second gear fixed connection, the screw rod is located in the drilling rod, the upper end of screw rod is connected with cutting adjustment motor's output, the lifting rod goes up and down to locate in the drilling rod, the upper end of lifting rod cup joints with the lower extreme screw thread of screw rod, the upper end fixed connection of hinge joint is at the lower extreme of lifting rod, the outer end of two cutting blades is all fixed the lower tip that articulates at the drilling rod, the inner of two cutting blades all articulates with the lower extreme activity of hinge joint, just adjacent side is leaned on each other between the inner of two cutting blades, the blade between two cutting blades sets up in opposite directions.
Further, each cutting insert is made of cemented carbide.
Furthermore, the root of the cutting edge of each cutting blade is provided with a coiling and cutting groove, and two end parts of each cutting blade are arc-shaped.
The drill rod assembly further comprises a vacuum chip suction head and a chip suction pipe, wherein the vacuum chip suction head is fixedly sleeved on the outer wall of the drill rod and is communicated with the interior of the drill rod, one end of the chip suction pipe is communicated with the vacuum chip suction head, and the other end of the chip suction pipe is connected with a machine tool;
the rotary radius of the cutting edge of the cutting blade is larger than the rotary arc radius of the drill rod, and a blocking and cutting ring is sleeved on the outer wall of the lower end of the drill rod.
The machine tool further comprises a bed body, a main shaft and a chip suction device, wherein the main shaft penetrates through the bed body in a rotating mode, the chip suction device is installed on the bed body, and the chip suction device is connected with the other end of the chip suction pipe.
The invention further comprises a pressure adjusting mechanism, wherein the pressure adjusting mechanism is arranged on the bottom surface of the cutting connecting plate; the bottom surface of the other end of the cutting connecting plate is fixedly connected with a first ratchet; a second ratchet matched with the first ratchet is fixedly sleeved on the outer wall of the upper end of the drill rod;
the other end of the cutting connecting plate is provided with a first sinking platform, the lower end face of the second gear is provided with a first boss, and the first boss is movably and hermetically inserted into the first sinking platform and is formed with a pressure sealing cavity communicated with the pressure adjusting mechanism between the first boss and the first sinking platform.
The pressure adjusting mechanism further comprises a pressure adjusting body, an elastic liquid bag, an adjusting knob and a locking nut, wherein the pressure adjusting body is fixed on the bottom surface of the cutting connecting plate, the elastic liquid bag is installed on the pressure adjusting body and filled with high-pressure oil, the elastic liquid bag is communicated with the pressure sealing cavity through the pressure adjusting body, the adjusting knob is in threaded connection with the pressure adjusting body, and the locking nut is in threaded connection with the adjusting knob.
Furthermore, the power supply rotation stopping block is provided with two rotation stopping holes at intervals, one end of the cutting connecting plate is provided with two rotation stopping pins at intervals, the two rotation stopping pins are inserted into the two rotation stopping holes in a one-to-one correspondence mode, and electrodes used for supplying power to the cutting adjusting motor are embedded on each rotation stopping pin.
The invention has the beneficial effects that: according to the invention, the outer ends of the two cutting blades are fixedly hinged on the drill rod, and the inner ends of the two cutting blades are movably hinged on the hinge joint, so that the included angle between the two cutting blades can be adjusted in a stepless manner within the range of a positive included angle and a negative included angle through the cooperation of the cutting adjusting motor, the screw rod and the lifting rod, a concave cone bottom blind hole, a flat bottom blind hole and an inner convex cone bottom blind hole can be obtained, the processing is more flexible, the blades are not required to be replaced for processing the hole bottom, and the drilling efficiency is greatly improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view from another perspective of the present invention;
FIG. 3 is an exploded schematic view of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
fig. 5 is a perspective view of a cutting head of the present invention;
fig. 6 is a cross-sectional view of a cutting head of the present invention;
fig. 7 is a schematic view of a cutting head of the present invention at an included angle of 180 degrees between two cutting blades;
FIG. 8 is a schematic structural view of the pressure adjustment mechanism of the present invention;
fig. 9 is a perspective view of the cutting insert of the present invention;
FIG. 10 is a perspective view of another perspective of the cutting insert of the present invention;
FIG. 11 is a schematic view of the construction of the first ratchet tooth or the second ratchet tooth of the present invention;
description of reference numerals: 1. a machine tool; 11. a bed body; 12. a main shaft; 13. a scrap suction device; 14. a rotation stopping power supply block; 2. cutting the connecting plate; 3. a taper shank; 4. a first gear; 5. a cutting head; 51. a second gear; 52. a cutting adjustment motor; 53. a drill stem; 54. a second ratchet; 55. a screw; 56. a lifting rod; 57. a hinge joint; 58. a cutting insert; 59. a blocking and cutting ring; 6. a rotation stopping pin; 7. vacuum chip suction heads; 8. a scrap suction pipe; 9. a pressure adjusting mechanism; 91. a pressure regulating body; 92. an elastic liquid bladder; 93. adjusting a knob; 94. a lock nut; 10. a first ratchet; 20. and an electrode.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
As shown in fig. 1 to 11, the machining device for the structural member of the compass navigation handset in the embodiment includes a machine tool 1, a cutting connecting plate 2, a taper shank 3, a first gear 4 and a cutting head 5;
a rotation stopping power supply block 14 is arranged at the bottom of the machine tool 1, and a rotation stopping hole is formed in the rotation stopping power supply block 14; a rotation stopping pin 6 is fixed at one end of the cutting connecting plate 2, the rotation stopping pin 6 is correspondingly inserted into the rotation stopping hole, and the rotation stopping pin 6 is matched with the rotation stopping hole to ensure that the cutting connecting plate 2 cannot rotate; the upper end of the taper shank 3 is connected with the output end of the machine tool 1 through a conical surface, and the lower end of the taper shank 3 is rotatably connected with one end of the cutting connecting plate 2; the first gear 4 is fixedly sleeved at the lower end of the taper shank 3;
the cutting head 5 comprises a second gear 51, a cutting adjustment motor 52, a drill rod 53, a screw 55, a lifting rod 56, a hinge 57 and two cutting blades 58;
the second gear 51 is rotatably connected to the other end of the cutting connecting plate 2 and meshed with the first gear 4, the cutting adjusting motor 52 is fixedly mounted on the upper end face of the second gear 51, the upper end of the drill rod 53 penetrates through the other end of the cutting connecting plate 2 and is fixedly connected with the second gear 51, the screw rod 55 is arranged in the drill rod 53, the upper end of the screw rod 55 is connected with the output end of the cutting adjusting motor 52, the lifting rod 56 is arranged in the drill rod 53 in a lifting mode, the upper end of the lifting rod 56 is in threaded sleeve connection with the lower end of the screw rod 55, the upper end of the hinge joint 57 is fixedly connected to the lower end of the lifting rod 56, the outer ends of the two cutting blades 58 are fixedly hinged to the lower end of the drill rod 53, the inner ends of the two cutting blades 58 are movably hinged to the lower end of the hinge joint 57, adjacent side faces between the inner ends of the two cutting blades 58 are attached to each other, and cutting edges between the two cutting blades 58 are arranged in opposite directions.
The working mode of the embodiment is as follows: when the cutting head 5 works, the cutting adjusting motor 52 drives the screw rod 55 to rotate, the screw rod 55 drives the lifting rod 56 to move downwards, the lifting rod 56 drives the hinge joint 57 to move downwards, the hinge joint 57 pushes the inner ends of the two cutting blades 58 to swing downwards, so that the two cutting blades 58 are conical surfaces protruding downwards, the included angle of the cutting edges between the two cutting blades 58 is 118 degrees, and the cutting head 5 is in a quick drilling state;
after finishing, the machine tool 1 drives the cutting head 5 to move to a position needing drilling and move downwards, at the moment, the machine tool 1 drives the first gear 4 to rotate through the taper shank 3, the first gear 4 drives the second gear 51 to rotate, the second gear 51 drives the drill rod 53 to rotate, the drill rod 53 drives the two cutting blades 58 to rotate, drilling machining is performed on an external installation framework, when the depth of a drill hole reaches a preset depth, namely the drill hole is a concave cone bottom blind hole, the cutting adjusting motor 52 drives the lifting rod 56 to move upwards through the screw 55, the lifting rod 56 drives the inner ends of the two cutting blades 58 to swing upwards through the hinge joint 57, so that an included angle between the two cutting blades 58 is gradually increased until the included angle is 180 degrees, meanwhile, the machine tool 1 synchronously drives the cutting head 5 to move downwards, so that a drill point formed between the two cutting blades 58 is static relative to the external installation framework in the vertical direction, so that the cutting head formed at the hole bottom of the drill hole is flattened in the process that the included angle between the two cutting blades 58 is gradually increased, so as to obtain a flat bottom blind hole, namely, a flat bottom of the drill hole is a conical surface, after the flat bottom of the drill hole is a conical surface, the machine tool 1 drives the cutting head to move upwards, and separate from the external installation framework, thereby completing drilling machining is completed, and completing the external drilling machining.
Of course, according to the actual machining requirement, the lifting rod 56 can be driven by the cutting adjusting motor 52 to move upwards continuously, so that the included angle between the two cutting blades 58 is gradually reduced, and the blind hole with the inner convex cone bottom is obtained.
The outer end that this embodiment was through setting up two cutting blades 58 is fixed articulated on drilling rod 53, and the inner activity of two cutting blades 58 articulates at hinge 57 to through cutting adjustment motor 52, screw rod 55, lifter 56 cooperates jointly and makes the contained angle between two cutting blades 58 can be at positive contained angle and negative contained angle within range infinitely variable control, thereby can obtain concave cone bottom blind hole, flat bottom blind hole and interior convex cone bottom blind hole, it is more nimble to process, need not to change the blade and process the hole bottom, improve drilling efficiency greatly.
In this embodiment, each cutting insert 58 is made of cemented carbide, which is more wear-resistant and impact-resistant and more reliable.
Based on the above embodiment, further, a coiling and cutting groove is formed at the root of the cutting edge of each cutting blade 58, and both ends of each cutting blade 58 are arc-shaped. This embodiment is through setting up the convolution groove to the smear metal that produces when the drilling is in time discharged from the drilling, and is arc through the tip that sets up cutting blade, so that the tapping operation of later stage drilling.
Based on the above embodiment, the chip cutting machine further comprises a vacuum chip suction head 7 and a chip suction pipe 8, wherein the vacuum chip suction head 7 is fixedly sleeved on the outer wall of the drill rod 53 and is communicated with the inside of the drill rod 53, one end of the chip suction pipe 8 is communicated with the vacuum chip suction head 7, and the other end of the chip suction pipe 8 is connected with the machine tool 1; the edge turning radius of the cutting blade 58 is larger than the turning arc radius of the drill rod 53, so that a gap exists between the drill rod 53 and the hole wall in the drilling process, the drill rod 53 is prevented from being abraded, and the outer wall of the lower end of the drill rod 53 is sleeved with a blocking and cutting ring 59.
Specifically, produce the smear metal during drilling and get into in the drilling rod 53, inhale in time follow drilling rod 53 with the smear metal suction through vacuum chip suction head 7 and inhale chip pipe 8 this moment, the guarantee drilling reliably goes on, cuts circle 59 through setting up the fender simultaneously, prevents the outside splash of smear metal follow drilling rod 53 of the smear metal that produces, so more environmental protection, saves subsequent cleaning.
Based on the above embodiment, further, the machine tool 1 includes a bed 11, a spindle 12 and a chip suction device 13, the spindle 12 rotatably penetrates through the bed 11, the chip suction device 13 is installed on the bed 11, and the chip suction device 13 is connected to the other end of the chip suction pipe 8.
In practical use, the main shaft 12 drives the taper shank 3 to rotate, the taper shank 3 drives the first gear 4 to rotate, so as to drive the cutting head 5 to perform drilling operation, and meanwhile, the chip suction device 13 is communicated with the vacuum chip suction head 7 through the chip suction pipe 8, so as to suck out chips in the drill rod 53 in time.
As shown in fig. 1 to 4 and 8, based on the above embodiment, the cutting tool further comprises a pressure adjusting mechanism 9, wherein the pressure adjusting mechanism 9 is installed on the bottom surface of the cutting connecting plate 2; the bottom surface of the other end of the cutting connecting plate 2 is fixedly connected with a first ratchet 10; a second ratchet 54 matched with the first ratchet 10 is fixedly sleeved on the outer wall of the upper end of the drill rod 53; the other end of the cutting connecting plate 2 is provided with a first sinking platform, the lower end face of the second gear 51 is provided with a first boss, and the first boss is movably and hermetically inserted into the first sinking platform and is formed with a pressure sealing cavity communicated with the pressure adjusting mechanism 9 between the first boss and the first sinking platform.
In this embodiment, specifically, the pressure adjustment mechanism 9 includes a pressure adjustment body 91, an elastic fluid bag 92, an adjustment knob 93, and a lock nut 94, the pressure adjustment body 91 is fixed to the bottom surface of the cutting connection plate 2, the elastic fluid bag 92 is mounted on the pressure adjustment body 91, the elastic fluid bag 92 is filled with high-pressure oil, the elastic fluid bag 92 is communicated with the pressure seal cavity through the pressure adjustment body 91, the adjustment knob 93 is screwed to the pressure adjustment body 91, and the lock nut 94 is screwed to the adjustment knob 93.
In practical use, the pressure in the pressure seal cavity is adjusted by adjusting the oil pressure in the elastic liquid bag 92 through the adjusting knob 93, so that the first ratchet 10 and the second ratchet 54 are in an engaged state, and of course, the pressure in the pressure seal cavity can be adjusted to control whether the first ratchet 10 and the second ratchet 54 are in a fully engaged state, a partially engaged state or a non-engaged state, which is set according to actual drilling requirements, in the present embodiment, the first ratchet 10 and the second ratchet 54 are set to be in a fully engaged state, when the drill rod 53 rotates, the drill rod 53 drives the second ratchet 54 to rotate, the second ratchet 54 rotates relative to the first ratchet 10, so that the drill rod 53 reciprocates up and down while rotating, when the tops of the first ratchet 10 and the second ratchet 54 face each other, the cutting blade 58 is in a deepest cutting position, high-pressure oil in the pressure seal cavity flows back into the elastic liquid bag 92, so that the elastic liquid bag 92 expands, and when the first ratchet 10 and the second ratchet 54 are fully engaged, the high-pressure oil in the elastic liquid bag 92 floats upwards, so that cutting blade is cut, and the cutting chip is broken, and the cutting head is convenient for sucking off the cutting chips 7.
The embodiment realizes that the drill rod 53 and the cutting blade synchronously vibrate up and down when rotating for cutting, thereby obtaining granular cutting, the volume of the generated cutting is smaller, the vacuum cutting head 7 is convenient to suck the cutting out in time, and the reliable drilling operation is ensured.
Based on the above embodiment, further, the power supply rotation stopping block is provided with two rotation stopping holes at intervals, one end of the cutting connecting plate 2 is provided with two rotation stopping pins 6 at intervals, the two rotation stopping pins 6 are inserted into the two rotation stopping holes in a one-to-one correspondence manner, so that the two rotation stopping pins 6 are matched with the two rotation stopping holes to ensure that the cutting connecting plate 2 cannot rotate and ensure accurate drilling of the cutting head 5, each rotation stopping pin 6 is embedded with an electrode 20 for supplying power to the cutting adjusting motor 52, and the electrode 20 is in contact with the cutting adjusting motor 52 to supply power, so that the structure is more compact.
The above description is only a preferred embodiment of the present invention, and therefore, all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (9)
1. A Beidou navigation handset structural member machining device is characterized by comprising a machine tool (1), a cutting connecting plate (2), a taper shank (3), a first gear (4) and a cutting head (5); it is characterized in that the preparation method is characterized in that,
a rotation stopping power supply block (14) is arranged at the bottom of the machine tool (1), and a rotation stopping hole is formed in the rotation stopping power supply block (14); a rotation stopping pin (6) is fixed at one end of the cutting connecting plate (2), and the rotation stopping pin (6) is correspondingly inserted into the rotation stopping hole; the upper end of the taper shank (3) is connected with the output end of the machine tool (1) through a conical surface, and the lower end of the taper shank (3) is rotatably connected with one end of the cutting connecting plate (2); the first gear (4) is fixedly sleeved at the lower end of the taper shank (3);
the cutting head (5) comprises a second gear (51), a cutting adjusting motor (52), a drill rod (53), a screw rod (55), a lifting rod (56), a hinge joint (57) and two cutting blades (58);
the cutting device is characterized in that the second gear (51) is rotatably connected to the other end of the cutting connecting plate (2) and meshed with the first gear (4), the cutting adjusting motor (52) is fixedly installed on the upper end face of the second gear (51), the upper end of the drill rod (53) penetrates through the other end of the cutting connecting plate (2) and then is fixedly connected with the second gear (51), the screw rod (55) is arranged in the drill rod (53), the upper end of the screw rod (55) is connected with the output end of the cutting adjusting motor (52), the lifting rod (56) is arranged in the drill rod (53) in a lifting mode, the upper end of the lifting rod (56) is in threaded sleeve joint with the lower end of the screw rod (55), the upper end of the hinge joint (57) is fixedly connected to the lower end of the lifting rod (56), the outer ends of the two cutting blades (58) are fixedly hinged to the lower end of the drill rod (53), the inner ends of the two cutting blades (58) are movably hinged to the lower end of the hinge joint (57), adjacent side faces of the two cutting blades (58) are attached to each other, and the cutting blades (58) are arranged in opposite directions.
2. The Beidou navigation handset structural member processing device according to claim 1, characterized in that each of the cutting blades (58) is made of cemented carbide.
3. The machining device for the structural member of the Beidou navigation handset according to claim 1, wherein a curling and cutting groove is formed in the root part of the cutting edge of each cutting blade (58), and both end parts of each cutting blade (58) are arc-shaped.
4. The Beidou navigation handset structural member processing device according to claim 1, further comprising a vacuum chip suction head (7) and a chip suction pipe (8), wherein the vacuum chip suction head (7) is fixedly sleeved on the outer wall of the drill rod (53) and communicated with the inside of the drill rod (53), one end of the chip suction pipe (8) is communicated with the vacuum chip suction head (7), and the other end of the chip suction pipe (8) is connected with the machine tool (1);
the cutting edge rotary radius of the cutting blade (58) is larger than the rotary arc radius of the drill rod (53), and a blocking and cutting ring (59) is sleeved on the outer wall of the lower end of the drill rod (53).
5. The Beidou navigation handset structural member processing device according to claim 4, wherein the machine tool (1) comprises a bed body (11), a main shaft (12) and a chip suction device (13), the main shaft (12) penetrates through the bed body (11) in a rotating mode, the chip suction device (13) is installed on the bed body (11), and the chip suction device (13) is connected with the other end of the chip suction pipe (8).
6. The Beidou navigation handset structural member processing device according to claim 1, further comprising a pressure adjusting mechanism (9), wherein the pressure adjusting mechanism (9) is installed on the bottom surface of the cutting connecting plate (2); the bottom surface of the other end of the cutting connecting plate (2) is fixedly connected with a first ratchet (10); a second ratchet (54) matched with the first ratchet (10) is fixedly sleeved on the outer wall of the upper end of the drill rod (53);
the other end of the cutting connecting plate (2) is provided with a first sinking platform, the lower end face of the second gear (51) is provided with a first boss, and the first boss is movably and hermetically inserted into the first sinking platform and is formed with a pressure sealing cavity communicated with the pressure adjusting mechanism (9) between the first boss and the first sinking platform.
7. The handset structural member machining device for Beidou navigation system according to claim 6, wherein the pressure adjusting mechanism (9) comprises a pressure adjusting body (91), an elastic liquid bag (92), an adjusting knob (93) and a locking nut (94), the pressure adjusting body (91) is fixed on the bottom surface of the cutting connecting plate (2), the elastic liquid bag (92) is installed on the pressure adjusting body (91), high-pressure oil is filled in the elastic liquid bag (92), the elastic liquid bag (92) is communicated with the pressure sealing cavity through the pressure adjusting body (91), the adjusting knob (93) is in threaded connection with the pressure adjusting body (91), and the locking nut (94) is in threaded connection with the adjusting knob (93).
8. The Beidou navigation handset structural member processing device according to claim 1, wherein the rotation stopping power supply block (14) is provided with two rotation stopping holes at intervals, one end of the cutting connecting plate (2) is provided with two rotation stopping pins (6) at intervals, the two rotation stopping pins (6) are inserted into the two rotation stopping holes in a one-to-one correspondence manner, and each rotation stopping pin (6) is embedded with an electrode (20) for supplying power to the cutting adjusting motor (52).
9. A machining method using the Beidou navigation handset structural member machining device of any one of the preceding claims 1 to 8, comprising the following steps:
s100: the cutting adjusting motor (52) drives the screw rod (55) to rotate, the screw rod (55) drives the lifting rod (56) to move downwards, the lifting rod (56) drives the hinge joint (57) to move downwards, the hinge joint (57) pushes the inner ends of the two cutting blades (58) to swing downwards, so that the two cutting blades (58) are in a downward convex conical surface, the included angle of the cutting edges between the two cutting blades (58) is 118 degrees, and the cutting head (5) is in a quick drilling state;
s200: the machine tool (1) drives the cutting head (5) to move to a position needing drilling and move downwards, at the moment, the machine tool (1) drives the first gear (4) to rotate through the taper shank (3), the first gear (4) drives the second gear (51) to rotate, the second gear (51) drives the drill rod (53) to rotate, the drill rod (53) drives the two cutting blades (58) to rotate, and drilling processing is carried out on an external installation framework;
s300: when the sharp depth of the drill hole reaches a preset depth, the cutting adjusting motor (52) drives the lifting rod (56) to move upwards through the screw (55), and the lifting rod (56) drives the inner ends of the two cutting blades (58) to swing upwards through the hinge joint (57) until the included angle between the two cutting blades (58) is 180 degrees;
meanwhile, the machine tool (1) synchronously drives the cutting head (5) to move downwards, so that a drill point formed between the two cutting blades (58) is static relative to an external installation framework in the vertical direction, the conical surface formed at the hole bottom of a drilled hole is flattened in the process that the included angle between the two cutting blades (58) is gradually increased, a flat-bottom blind hole is obtained, and after flattening is finished, the machine tool (1) drives the cutting head (5) to move upwards to be separated from the external installation framework, so that drilling processing is finished.
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CN203787560U (en) * | 2014-01-16 | 2014-08-20 | 西安希德电子信息技术有限公司 | Hand-held antenna for Beidou navigation reception equipment |
CN203831071U (en) * | 2014-04-29 | 2014-09-17 | 黄河科技学院 | Drilling and tapping machine for threaded hole |
CN111993286A (en) * | 2020-09-15 | 2020-11-27 | 江苏富技腾机电科技有限公司 | Multifunctional cutter head and cutting method thereof |
CN113579741A (en) * | 2021-08-23 | 2021-11-02 | 德州德隆(集团)机床有限责任公司 | Coordinate type double-spindle drilling and milling composite numerical control machine tool |
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