A high-speed tungsten steel drill bit

Abstract

The present invention relates to the technical field of drill equipment, specifically a high-speed tungsten steel drill, including a supporting device, a transmission device, a limiting device, a positioning device, an inner hexagonal rotating plate and an active bevel gear, wherein the inner end surface of the supporting device is rotatably connected with an inner hexagonal rotating plate for limiting. The present invention sets a limiting device, and when the tungsten steel drill is quickly limited or split, the inner hexagonal rotating plate can synchronously drive the four groups of driven bevel gears at the bottom to mesh and rotate through the active bevel gear, thereby making the four groups of driven bevel gears synchronously drive the four groups of ball screws to rotate, and the four groups of ball screws can drive the four groups of guide slides to move inside the connecting guide groove, so that the four groups of limiting devices can synchronously perform double limiting on the outside of the fixed seat through the plug-in card shaft and the fixed pressure plate, effectively improving the stability and convenience of limiting the outside of the tungsten steel drill.

Description

Technical Field

[0001] The invention relates to the technical field of drill bit equipment, in particular to a high-speed tungsten steel drill bit. Background Art

[0002] Tungsten carbide drill bits generally refer to carbide drill bits. Carbide drill bits are a type of equipment used in drilling projects and can effectively improve the work efficiency of drilling construction.

[0003] For example, the utility model patent disclosed in the publication number is CN211866683U, which is a high-speed tungsten steel drill bit, belonging to the field of drill bits, including a drill tip, a sliding groove is fixedly installed inside the lower end of the drill tip, a connecting block A is movably installed inside the sliding groove, a fixing column is fixedly installed on the outer wall of the lower end of the connecting block A, a spring A is fixedly sleeved on the outer wall of the connecting block A, limiting grooves are fixedly installed on the left and right sides of the sliding groove, connecting blocks B are fixedly installed on the left and right sides of the connecting block A, limiting blocks are fixedly installed on the left and right sides of the connecting block B through the limiting groove, and a spring B is fixedly installed on the upper end of the limiting block.

[0004] For example, the utility model patent disclosed in the publication number is: CN204621177U, a high-speed tungsten steel drill bit and a drilling device, the high-speed tungsten steel drill bit includes a drill rod; a drill head, one end of the drill head is connected to one end of the drill rod, and a chip groove and a spiral cutting edge are arranged on the circumferential surface of the drill head, wherein the drill rod and the drill head are engraved with scales representing the depth and marking the diameter of the drill hole; a spike portion, the spike portion is embedded in the end face of the other end of the drill head, wherein the spike portion, the drill head and the drill rod are integrally formed, and the spike portion is tungsten steel.

[0005] However, when the existing tungsten steel drill bit rotates at high speed, the stability of its base for limiting is insufficient, and it is not convenient to quickly replace the tungsten steel drill bit, which reduces the practical performance of the equipment. Therefore, a device is needed to improve the above problems. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides a high-speed tungsten steel drill bit.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a high-speed tungsten steel drill bit, including a supporting device, a transmission device, a limiting device, a positioning device, a hexagonal rotating plate and an active bevel gear;

[0008] The inner end surface of the support device is rotatably connected with a hexagonal rotating plate for limiting, and an active bevel gear is fixedly installed at the center of the lower end surface of the hexagonal rotating plate. The inner end surface of the support device is evenly and equidistantly connected with four sets of transmission devices near the bottom, and the inner end surface of the support device is evenly and equidistantly connected with four sets of limiting devices near the bottom. The lower end surface of the support device is slidably connected with a positioning device near the bottom through the four sets of limiting devices;

[0009] The transmission device includes a driven bevel gear, a ball screw and a limit clamping plate. A ball screw for transmission is fixedly installed at the center of the side end surface of the driven bevel gear, and a limit clamping plate for limiting is fixedly installed at the end of the side end surface of the ball screw.

[0010] Specifically, the supporting device includes a positioning card plate, a motor positioning groove, a profile support plate, a limiting guide shaft, a supporting base plate, a fixed card seat and a connecting guide groove. A motor positioning groove for connection is provided near the bottom of the inner end surface of the positioning card plate, and profile support plates for support are provided at the four corners of the lower end surface of the positioning card plate. A supporting base plate is fixedly installed at the center of the lower end surface of the four groups of profile support plates, four groups of fixed card seats are evenly and equidistantly provided near the middle of the upper end surface of the supporting base plate, four groups of limiting guide shafts for guidance are evenly and equidistantly provided on the inner end surface of the fixed card seat, and four groups of connecting guide grooves are evenly and equidistantly provided on the inner end surface of the supporting base plate.

[0011] Specifically, the limiting device includes a guide slide groove, a fixed slide plate, a plug-in card shaft, a fixed pressure plate, a guide slide seat, a connecting top plate, a fixed slide shaft and a spring clamp. The front end surface of the guide slide seat is evenly and equidistantly slidably clamped with three groups of fixed slide shafts near the top, and a connecting top plate is fixedly installed at the center of the front end surfaces of the three groups of fixed slide shafts, and a fixed slide plate for guiding is fixedly installed at the center of the lower end surface of the connecting top plate. A spring clamp for buffering is provided at the coaxial position of the front end surface of the guide slide seat and the fixed slide shaft, a fixed pressure plate for limiting is provided at the top of the front end surface of the connecting top plate, and three groups of plug-in card shafts are evenly and equidistantly arranged at the front end surface of the connecting top plate, and a guide slide groove for guiding is provided on the inner end surface of the fixed slide plate.

[0012] Specifically, the positioning device includes a positioning card seat, a plug-in guide shaft, a supporting guide groove, a card-connecting slide shaft, a fixed card seat, a plug-in guide hole, a support guide shaft and a tungsten steel drill bit. A card-connecting slide shaft for positioning is fixedly installed at the center of the upper end surface of the fixed card seat, and three groups of plug-in guide holes are evenly and equidistantly provided on the side end surface of the fixed card seat, and supporting guide grooves for positioning are provided at the four corners of the inner end surface of the fixed card seat, a tungsten steel drill bit is provided at the center of the lower end surface of the fixed card seat, and a positioning card seat is fixedly installed on the lower end surface of the tungsten steel drill bit, a supporting guide shaft is fixedly installed at the center of the upper end surface of the positioning card seat, and plug-in guide shafts for guiding are provided at the four corners of the upper end surface of the positioning card seat.

[0013] Specifically, the side length of the motor positioning groove is slightly larger than the diameter of the hexagonal rotating plate, and the hexagonal rotating plate is rotatably connected to the bottom of the inner end surface of the positioning clamping plate through the motor positioning groove, the limiting guide shaft and the fixed clamping seat are both opposite to the connecting guide groove, and a threaded groove is provided on the inner end surface of the guide slide seat opposite to the guide slide groove, and the threaded groove is matched with the ball screw, and the guide slide seat is matched with the ball screw through the threaded groove and then threadedly slidably connected to the inner end surface of the support base plate.

[0014] Specifically, the front end face of the ball screw is rotatably connected to the fixed base, and a rotation groove is opened at the center of the inner end face of the profile support plate. The rear end face of the ball screw is rotatably connected to the inside of the profile support plate through the rotation groove, and the upper end faces of the four groups of driven bevel gears are meshed with the active bevel gears.

[0015] Specifically, a crimping groove is provided on the lower end surface of the fixed card seat, which is located opposite to the plug-in guide hole. The crimping groove is matched with the fixed pressure plate, and the plug-in card shaft is matched with the plug-in guide hole. The limiting device is matched with the fixed pressure plate through the crimping groove, and the plug-in card shaft is matched with the plug-in guide hole, so as to be fixedly connected with the fixed card seat.

[0016] Specifically, a servo motor for transmission is fixedly mounted on the inner end surface of the positioning clamping plate through the motor positioning groove, and the lower end surface of the servo motor is fixedly connected to the active bevel gear.

[0017] Beneficial effects of the present invention:

[0018] First, the present invention sets a limiting device. When the tungsten steel drill bit is quickly limited or split, the hexagonal rotating plate can synchronously drive the four sets of driven bevel gears at the bottom to mesh and rotate through the active bevel gear, so that the four sets of driven bevel gears synchronously drive the four sets of ball screws to rotate, and the four sets of ball screws can drive the four sets of guide slides to move inside the connecting guide grooves, so that the four sets of limiting devices can synchronously perform double limiting on the outside of the fixed clamping seat through the plug-in clamping shaft and the fixed pressure plate, which effectively improves the stability and convenience of limiting the outside of the tungsten steel drill bit.

[0019] Second, the present invention sets a transmission device and a positioning device. During transmission, the active bevel gear can mesh with the four sets of driven bevel gears, thereby synchronously driving the four sets of ball screws to rotate. At the same time, the four sets of ball screws can be threadedly connected to the guide slide seat through the thread groove, which effectively improves the stability of the active bevel gear synchronously driving the four sets of limit devices to perform limit displacement. At the same time, the threaded connection can effectively improve the stability of the limit device's self-locking of the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a split diagram of the main body in the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the main body in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the supporting device in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the transmission device in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the limiting device in the present invention;

[0026] Figure 6 is a side view of the limiting device of the present invention;

[0027] Figure 7 This is a disassembled diagram of the positioning device of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the positioning device of the present invention;

[0029] Fig. 9 It is a schematic structural diagram of the second embodiment of the main body of the present invention.

[0030] In the figure: 1-support device, 2-transmission device, 3-limiting device, 4-positioning device, 5-hexagonal rotating plate, 6-active bevel gear, 7-servo motor, 11-positioning card plate, 12-motor positioning groove, 13-profile support plate, 14-limiting guide shaft, 15-support bottom plate, 16-fixed card seat, 17-connecting guide groove, 21-driven bevel gear, 22-ball screw, 23-limiting card plate, 31-guide slide groove, 32-fixed slide plate, 33-plug-in card shaft, 34-fixed pressure plate, 35-guide slide seat, 36-connecting top plate, 37-fixed slide shaft, 38-spring retaining ring, 41-positioning card seat, 42-plug-in guide shaft, 43-support guide groove, 44-plug-in slide shaft, 45-fixed card seat, 46-plug-in guide hole, 47-support guide shaft, 48-tungsten steel drill bit. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] The present invention is further described below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] like Figure 1-8 As shown, a high-speed tungsten steel drill bit of the present invention comprises a supporting device 1, a transmission device 2, a limiting device 3, a positioning device 4, a hexagonal rotating plate 5 and an active bevel gear 6;

[0036] The inner end surface of the support device 1 is rotatably connected with a hexagonal rotating plate 5 for limiting, and a driving bevel gear 6 is fixedly installed at the center of the lower end surface of the hexagonal rotating plate 5. The inner end surface of the support device 1 is evenly and equidistantly connected with four sets of transmission devices 2 near the bottom, and the inner end surface of the support device 1 is evenly and equidistantly connected with four sets of limiting devices 3 near the bottom. The lower end surface of the support device 1 is slidably connected with a positioning device 4 near the bottom through the four sets of limiting devices 3.

[0037] The transmission device 2 includes a driven bevel gear 21, a ball screw 22 and a limit clamp 23. The ball screw 22 for transmission is fixedly installed at the center of the side end surface of the driven bevel gear 21, and the limit clamp 23 for limiting is fixedly installed at the end of the side end surface of the ball screw 22.

[0038] The supporting device 1 includes a positioning card plate 11, a motor positioning groove 12, a profile support plate 13, a limiting guide shaft 14, a supporting base plate 15, a fixed card seat 16 and a connecting guide groove 17. The inner end surface of the positioning card plate 11 is provided with a motor positioning groove 12 for connection near the bottom, and the profile support plates 13 for support are arranged at the four corners of the lower end surface of the positioning card plate 11. The supporting base plate 15 is fixedly installed at the center of the lower end surface of the four groups of profile support plates 13. Four groups of fixed card seats 16 are evenly and equidistantly arranged near the middle of the upper end surface of the supporting base plate 15. Four groups of limiting guide shafts 14 for guiding are evenly and equidistantly arranged on the inner end surface of the fixed card seat 16. Four groups of connecting guide grooves 17 are evenly and equidistantly arranged on the inner end surface of the supporting base plate 15.

[0039] The limiting device 3 includes a guide slide 31, a fixed slide 32, a plug-in card shaft 33, a fixed pressure plate 34, a guide slide 35, a connecting top plate 36, a fixed slide shaft 37 and a spring retaining ring 38. The front end surface of the guide slide 35 is evenly and equidistantly slidably clamped with three groups of fixed slide shafts 37 near the top, and a connecting top plate 36 is fixedly installed at the center of the front end surfaces of the three groups of fixed slide shafts 37. A fixed slide 32 for guiding is fixedly installed at the center of the lower end surface of the connecting top plate 36. A spring retaining ring 38 for buffering is arranged at the coaxial position of the front end surface of the guide slide 35 and the fixed slide shaft 37. A fixed pressure plate 34 for limiting is arranged at the top of the front end surface of the connecting top plate 36, and three groups of plug-in card shafts 33 are evenly and equidistantly arranged at the front end surface of the connecting top plate 36. A guide slide 31 for guiding is provided on the inner end surface of the fixed slide 32.

[0040] The positioning device 4 includes a positioning card seat 41, a plug-in guide shaft 42, a supporting guide groove 43, a card-connecting slide shaft 44, a fixed card seat 45, a plug-in guide hole 46, a supporting guide shaft 47 and a tungsten steel drill bit 48. A card-connecting slide shaft 44 for positioning is fixedly installed at the center of the upper end surface of the fixed card seat 45, and three groups of plug-in guide holes 46 are evenly and equidistantly provided on the side end surface of the fixed card seat 45. Support guide grooves 43 for positioning are provided at the four corners of the inner end surface of the fixed card seat 45. A tungsten steel drill bit 48 is provided at the center of the lower end surface of the fixed card seat 45, and the positioning card seat 41 is fixedly installed on the lower end surface of the tungsten steel drill bit 48. A supporting guide shaft 47 is fixedly installed at the center of the upper end surface of the positioning card seat 41, and a plug-in guide shaft 42 for guiding is provided at the four corners of the upper end surface of the positioning card seat 41.

[0041] The side length of the motor positioning groove 12 is slightly larger than the diameter of the hexagonal rotating plate 5, and the hexagonal rotating plate 5 is rotated and clamped on the bottom of the inner end surface of the positioning clamping plate 11 through the motor positioning groove 12. The limiting guide shaft 14 and the fixed clamping seat 16 are both opposite to the connecting guide groove 17. A threaded groove is provided on the inner end surface of the guide slide 35 opposite to the guide slide 31. The threaded groove is adapted to the ball screw 22, and the guide slide 35 is adapted to the ball screw 22 through the threaded groove and then threadedly slidably connected to the inner end surface of the supporting base plate 15. The transmission mode of the threaded connection between the ball screw 22 and the guide slide 35 can effectively improve the stability of the displacement of the limiting device 3 inside the supporting device 1, and effectively improve the stability of the subsequent limiting of the tungsten steel drill bit 48.

[0042] The front end face of the ball screw 22 is rotatably connected to the fixed base 16, and a rotation groove is opened at the center of the inner end face of the profile support plate 13. The rear end face of the ball screw 22 is rotatably connected to the inside of the profile support plate 13 through the rotation groove. The upper end faces of the four sets of driven bevel gears 21 are meshed and connected with the active bevel gear 6. The rotation groove can cooperate with the limit card plate 23, thereby improving the stability of the transmission device 2 rotating on the upper part of the support base plate 15 and improving the stability of subsequent transmission.

[0043] A crimping groove is provided on the lower end surface of the fixed card seat 45, which is directly opposite to the plug-in guide hole 46. The crimping groove is adapted to the fixed pressure plate 34, and the plug-in card shaft 33 is adapted to the plug-in guide hole 46. The limiting device 3 is adapted to the fixed pressure plate 34 and the plug-in card shaft 33 is adapted to the plug-in guide hole 46 through the crimping groove, and then fixedly connected to the fixed card seat 45. The cooperation between the crimping groove and the fixed pressure plate 34 and the plug-in card shaft 33 and the plug-in guide hole 46 can effectively improve the stability of the limiting device 3 on the positioning device 4.

[0044] The working principle of Example 1 is as follows: when in use, if the tungsten steel drill bit 48 needs to be quickly limited or replaced, the user can position the external limiting tool to the upper part of the hexagonal rotating plate 5 and then rotate it. At this time, the hexagonal rotating plate 5 can drive the active bevel gear 6 at the bottom to rotate. When the active bevel gear 6 rotates, it can synchronously drive the four groups of driven bevel gears 21 at the bottom to engage and rotate. When the driven bevel gear 21 rotates, it can synchronously drive the four groups of ball screws 22 to rotate, so that the four groups of ball screws 22 can rotate synchronously on the upper part of the supporting base plate 15. When the ball screw 22 rotates, it can drive the guide slide 35 to move inside the connecting guide groove 17. When the four groups of guide slides 35 are displaced centripetally At this time, the guide slide seat 35 can drive the fixed slide plate 32 and the connecting top plate 36 to slide outside the limiting guide shaft 14, and at the same time, the four groups of fixed pressure plates 34 outside the connecting top plates 36 can be positioned in the crimping groove at the bottom of the fixed card seat 45, and at the same time, the three groups of plug-in card shafts 33 can be directly positioned inside the plug-in guide hole 46. The double limit can effectively improve the stability of limiting the fixed card seat 45. At the same time, the three groups of spring retaining rings 38 at the rear of the connecting top plate 36 can cooperate with the elastic guide of the fixed slide shaft 37, effectively improving the stability of the limit of the plug-in card shaft 33 and the fixed pressure plate 34. On the contrary, when disassembling the tungsten steel drill bit 48, the user can reverse the hexagonal rotating plate 5, thereby causing the four groups of limit devices 3 to be centrifugally displaced, thereby facilitating the subsequent fast and stable disassembly operation.

[0045] Example 2

[0046] On the basis of Example 1, Fig. 9 As shown, the inner end surface of the positioning clamping plate 11 is fixedly mounted with a servo motor 7 for transmission through a motor positioning groove 12 , and the lower end surface of the servo motor 7 is fixedly connected to the driving bevel gear 6 .

[0047] When implementing this embodiment, before use, the user can start the servo motor 7 through an external control device. At this time, the servo motor 7 can drive the active bevel gear 6 at the bottom to rotate, thereby facilitating the subsequent rapid and accurate driving of the four groups of limit devices 3 to limit or split the positioning device 4, thereby improving the degree of automation and ease of use of the equipment.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed tungsten steel drill bit, characterized in that: It comprises a supporting device (1), a transmission device (2), a limiting device (3), a positioning device (4), a hexagon socket rotating plate (5) and a driving bevel gear (6); The inner end surface of the support device (1) is rotatably engaged with a hexagonal rotating plate (5) for limiting position, and a driving bevel gear (6) is fixedly mounted at the center of the lower end surface of the hexagonal rotating plate (5); the inner end surface of the support device (1) is evenly and equidistantly rotatably engaged with four sets of transmission devices (2) near the bottom; the inner end surface of the support device (1) is evenly and equidistantly slidably engaged with four sets of limiting devices (3) near the bottom; and the lower end surface of the support device (1) is slidably engaged with a positioning device (4) near the bottom through the four sets of limiting devices (3); The transmission device (2) comprises a driven bevel gear (21), a ball screw (22) and a limit clamp (23); a ball screw (22) for transmission is fixedly mounted at the center of the side end surface of the driven bevel gear (21), and a limit clamp (23) for limiting is fixedly mounted at the end of the side end surface of the ball screw (22); The upper end surfaces of the four groups of driven bevel gears (21) are meshingly connected with the driving bevel gear (6); The limiting device (3) comprises a guide slide groove (31), a fixed slide plate (32), an inserting card shaft (33), a fixed pressure plate (34), a guide slide seat (35), a connecting top plate (36), a fixed slide shaft (37) and a spring clamp (38), wherein the front end surface of the guide slide seat (35) is evenly and equidistantly slidably clamped with three groups of fixed slide shafts (37) near the top, and a connecting top plate (36) is fixedly installed at the front end surfaces of the three groups of fixed slide shafts (37), and a spring clamp (38) is located below the connecting top plate (36). A fixed slide plate (32) for guiding is fixedly installed at the center of the end surface, a spring retaining ring (38) for buffering is arranged at the front end surface of the guide slide seat (35) and the fixed slide shaft (37) coaxially, a fixed pressure plate (34) for limiting is arranged at the top of the front end surface of the connecting top plate (36), and three groups of plug-in card shafts (33) are evenly and equidistantly arranged on the front end surface of the connecting top plate (36), and a guide slide groove (31) for guiding is opened on the inner end surface of the fixed slide plate (32); A thread groove is formed on the inner end surface of the guide slide seat (35) opposite to the guide slide groove (31), and the thread groove is adapted to fit the ball screw (22); The positioning device (4) comprises a positioning card seat (41), a plug-in guide shaft (42), a support guide groove (43), a clamping slide shaft (44), a second fixed card seat (45), a plug-in guide hole (46), a support guide shaft (47) and a tungsten steel drill bit (48), wherein a clamping slide shaft (44) for positioning is fixedly installed at the center of the upper end surface of the second fixed card seat (45), and three groups of plug-in guide holes (46) are evenly and equidistantly opened on the side end surface of the second fixed card seat (45), and the fixed card seat (45) is provided with a plurality of plug-in guide holes (46) at a fixed distance from each other. The inner end surface of the second fixed card seat (45) is provided with support guide grooves (43) for positioning at four corners, a tungsten steel drill bit (48) is arranged at the center of the lower end surface of the second fixed card seat (45), and a positioning card seat (41) is fixedly installed on the upper end surface of the tungsten steel drill bit (48), a support guide shaft (47) is fixedly installed at the center of the upper end surface of the positioning card seat (41), and plug-in guide shafts (42) for guiding are arranged at the four corners of the upper end surface of the positioning card seat (41); A crimping groove is provided on the lower end surface of the second fixed card seat (45) at a position corresponding to the plug-in guide hole (46); the crimping groove is matched with the fixed pressure plate (34); the plug-in card shaft (33) is matched with the plug-in guide hole (46); the limiting device (3) is matched with the fixed pressure plate (34) through the crimping groove, and the plug-in card shaft (33) is matched with the plug-in guide hole (46), thereby being fixedly connected with the second fixed card seat (45).

2. A high-speed tungsten steel drill bit according to claim 1, characterized in that: The support device (1) comprises a positioning card plate (11), a motor positioning groove (12), a profile support plate (13), a limiting guide shaft (14), a support base plate (15), a fixed card seat (16) and a connecting guide groove (17); a motor positioning groove (12) for connection is provided near the bottom of the inner end surface of the positioning card plate (11), and profile support plates (13) for support are provided at four corners of the lower end surface of the positioning card plate (11); support base plates (15) are fixedly installed at the center of the lower end surfaces of four groups of the profile support plates (13); four groups of fixed card seats (16) are evenly and equidistantly provided near the middle of the upper end surface of the support base plate (15); four groups of limiting guide shafts (14) for guidance are evenly and equidistantly provided on the inner end surface of the fixed card seat (16); and four groups of connecting guide grooves (17) are evenly and equidistantly provided on the inner end surface of the support base plate (15).

3. A high-speed tungsten steel drill bit according to claim 2, characterized in that: The side length of the motor positioning groove (12) is slightly larger than the diameter of the hexagonal rotating plate (5), and the hexagonal rotating plate (5) is rotatably clamped on the bottom of the inner end surface of the positioning clamping plate (11) through the motor positioning groove (12), the limiting guide shaft (14) and the fixed clamping seat (16) are both opposite to the connecting guide groove (17), and the guide slide seat (35) is adapted to the ball screw (22) through the threaded groove and is then threadedly slidably connected to the inner end surface of the supporting base plate (15).

4. A high-speed tungsten steel drill bit according to claim 3, characterized in that: The front end face of the ball screw (22) is rotatably engaged with the fixed clamping seat (16), and a rotation groove is provided at the center of the inner end face of the profile support plate (13), and the rear end face of the ball screw (22) is rotatably engaged with the inside of the profile support plate (13) through the rotation groove.

5. A high-speed tungsten steel drill bit according to claim 4, characterized in that: A servo motor (7) for transmission is fixedly mounted on the inner end surface of the positioning clamp (11) via the motor positioning groove (12), and the lower end surface of the servo motor (7) is fixedly connected to the active bevel gear (6).

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