Diamond brazing drill bit capable of rapidly tapping

Abstract

The utility model relates to the technical field of diamond drill bits, and discloses a diamond brazing drill bit capable of rapidly tapping, which comprises a positioning drill bit, an upper protective cover rotatably connected to one end of the positioning drill bit, and a vibration component arranged at one end of the upper protective cover, the vibration assembly comprises a lower protective cover slidably connected to the inner peripheral wall of the upper protective cover, the inner top of the upper protective cover is fixedly connected with a fixing pipe, and one side of the top of the upper protective cover fixedly communicates with a connecting pipe; the effect of improving the drilling efficiency of the drill bit is achieved, a piston plate is driven to reset through mutual cooperation of a third spring and a limiting rod, then a reaming cylinder and cutting teeth vibrate in a reciprocating mode while rotating and drilling through mutual cooperation of a second spring, a second guide rod and a second guide sleeve, the problem that single rotating friction is generated, and the drilling efficiency of the drill bit is improved is solved. And the drilling efficiency of the drill bit is difficult to effectively improve.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond bits, and specifically relates to a diamond brazed bit capable of quickly opening holes. Background Art

[0002] An opening bit, also known as an opening saw or hole saw, refers to a special circular saw for cutting circular holes in modern industry or engineering. It is simple and flexible to operate, easy to carry, safe to use, and has a wide range of applications. When the opening bit is installed on an ordinary electric drill, it can conveniently cut circular holes and other hole positions on the planes, spherical surfaces and other arbitrary curved surfaces of various plates such as copper, iron, stainless steel, and plexiglass.

[0003] After retrieval, a Chinese patent with the publication number CN215702969U discloses a diamond brazed bit capable of quickly opening holes, including a bit body and a connecting column. The middle of the top surface of the bit body is fixedly welded with a connecting column, the bottom surface of the bit body is welded with cutting teeth, a brazing coating is provided on the bottom surface of the outer wall of the bit body and the surface of the cutting teeth, a fixing ring is welded on the top surface of the bit body, and a first bearing is installed on the top surface of the fixing ring. The first bearing is composed of a first outer ring and a first inner ring. The first outer ring is located outside the first inner ring, and the bottom of the first outer ring is welded to the top surface of the fixing ring.

[0004] When this bit is used, the hole opening speed is faster. At the same time, water can be added to the hole opening during hole opening, which can not only reduce the surface temperature of the bit, improve the service life of the bit, but also reduce the generation of dust and the harm to the operator's body.

[0005] However, this bit still has the following problems. The bit is welded with cutting teeth at the bottom end of the bit body, and then a brazing layer is provided on the bottom of the outer peripheral wall of the bit body and the surface of the cutting teeth to improve the strength of the bit, thereby improving the working efficiency of the bit. In the actual use process, the positioning between the bit and the bit body, and the cutting teeth and the drilling hole are all single rotational friction, which is difficult to effectively improve the drilling efficiency of the bit. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a diamond brazed bit capable of quickly opening holes, which solves the problem that the single rotational friction is difficult to effectively improve the drilling efficiency of the bit.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the utility model provides the following technical solutions: A diamond brazed drill bit capable of quickly opening holes, including a positioning drill bit, one end of the positioning drill bit is rotatably connected with an upper protective cover, and further includes a vibration assembly arranged at one end of the upper protective cover, and a drilling assembly is arranged outside the positioning drill bit;

[0010] The vibration assembly includes a lower protective cover slidably connected to the inner peripheral wall of the upper protective cover. A fixed pipe is fixedly connected to the inner top of the upper protective cover. One side of the top of the upper protective cover is fixedly communicated with a connecting pipe. A connecting plate is fixedly connected to the outer peripheral wall of the positioning drill bit near the fixed pipe, and the top end of the connecting plate is rotatably connected to one end of the fixed pipe. A plurality of through holes are formed in the top of the connecting plate, and the top ends of the through holes are communicated with the fixed pipe. A plurality of guiding sleeves II are fixedly communicated with the bottom of the connecting plate near the through holes. One end of each guiding sleeve II is slidably connected with a guiding rod II. A spring II is sleeved between the outer peripheral wall of each guiding rod II and the guiding sleeve II. A pair of limiting rods are fixedly connected between the inner bottom of the guiding sleeve II and the bottom of the connecting plate. A spring III is sleeved on the outer peripheral wall of each limiting rod. The inner peripheral wall of each guiding sleeve II is slidably connected with a piston plate, one end of the piston plate is fixedly connected to the top end of the guiding rod II, and the other end of the piston plate is slidably connected to the outer peripheral wall of the limiting rod.

[0011] Preferably, the other end of the positioning drill bit is fixedly connected with a connecting seat. A plurality of uniformly distributed sliding grooves are formed in the outer wall of the connecting seat. A slider is slidably connected to the inner wall of each sliding groove. One ends of the plurality of sliders are fixedly connected to an expanding hole cylinder together, and the top end of the expanding hole cylinder is fixedly connected to the bottom end of the guiding rod II.

[0012] Preferably, the drilling assembly includes a set of cutting teeth fixedly connected to the bottom end of the expanding hole cylinder. A plurality of uniformly distributed material discharging holes are formed in the outer peripheral wall of the expanding hole cylinder.

[0013] Preferably, one end of the outer peripheral wall of the upper protective cover and one end of the lower protective cover are both fixedly connected with a fixing ring. A plurality of guiding sleeves I are fixedly connected to one end of one of the fixing rings.

[0014] Preferably, a plurality of guiding rods I are fixedly connected to one end of the other fixing ring, and the outer peripheral walls of the guiding rods I are slidably connected to the inner peripheral walls of the guiding sleeves I. A spring I is sleeved between the outer peripheral wall of each guiding rod I and the guiding sleeve I.

[0015] Preferably, a scale line is arranged on one side of the outer peripheral wall of the lower protective cover.

[0016] (III) Beneficial effects

[0017] 1. The diamond brazed drill bit capable of quickly opening holes drives the piston plate to reset through the mutual cooperation between the third spring and the limiting rod, and then through the mutual cooperation between the second spring, the second guide rod and the second guide sleeve, the reaming cylinder and the cutting teeth rotate and drill holes while reciprocatingly vibrating, effectively improving the drilling efficiency of the drill bit.

[0018] 2. The diamond brazed drill bit capable of quickly opening holes is simple to operate and ingeniously designed. During the drilling process, the positioning drill bit drives the upper protective cover to move towards the drilling axis direction, causing the lower protective cover to move along the inner peripheral wall of the upper protective cover, thereby driving the scale line provided on the outer peripheral wall of the lower protective cover to disappear into the interior of the upper protective cover. By reading the scale line at the port of the upper protective cover, the drilling depth during observation can be obtained, effectively improving the convenience of drilling with the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a first - perspective three - dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a second - perspective three - dimensional structural schematic diagram of the present utility model;

[0021] Figure 3 is a half - section three - dimensional structural schematic diagram of some components of the present utility model;

[0022] Figure 4 is a half - section three - dimensional structural schematic diagram of some drilling components of the present utility model.

[0023] In the figure: 1. Positioning drill bit; 2. Upper protective cover; 3. Lower protective cover; 4. Fixed ring; 5. First guide sleeve; 6. First guide rod; 7. First spring; 8. Scale line; 9. Reaming cylinder; 10. Cutting teeth; 11. Connecting pipe; 12. Fixed pipe; 13. Connecting plate; 14. Second guide sleeve; 15. Second guide rod; 16. Second spring; 17. Through hole; 18. Limiting rod; 19. Third spring; 20. Piston plate; 21. Connecting seat; 22. Chute; 23. Slide block; 24. Discharge hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment: As Figure 1As shown, a diamond brazed drill bit capable of quickly opening holes includes a positioning drill bit 1, and the positioning drill bit 1 is made by diamond brazing technology to improve the strength and service life of the drill bit. One end of the positioning drill bit 1 is rotatably connected to an upper protective cover 2, and the upper protective cover 2 plays a role in dust prevention, avoiding the dust generated during the operation of the drill bit from affecting the staff and the working environment. It also includes a vibration assembly arranged at one end of the upper protective cover 2, and a drilling assembly is arranged outside the positioning drill bit 1.

[0026] As Figure 3 shown in Figure 4 a certain embodiment, in order to improve the working efficiency of the drill bit, the vibration assembly includes a lower protective cover 3 slidably connected to the inner peripheral wall of the upper protective cover 2. Through the mutual cooperation between the upper protective cover 2 and the lower protective cover 3, the drill bit is in a relatively sealed environment, avoiding the dust generated during the operation of the drill bit from affecting the staff. A fixed pipe 12 is fixedly connected to the inner top of the upper protective cover 2, and a connecting pipe 11 is fixedly communicated with one side of the top of the upper protective cover 2. One end of the connecting pipe 11 is communicated with an external hydraulic oil supply system to play a role in supplying pressure. A connecting plate 13 is fixedly connected to the outer peripheral wall of the positioning drill bit 1 near the fixed pipe 12, and the top end of the connecting plate 13 is rotatably connected to one end of the fixed pipe 12. A sealing treatment is adopted between the connecting plate 13 and the fixed pipe 12 to avoid hydraulic oil leakage during work. A plurality of through holes 17 are opened at the top of the connecting plate 13, and the top ends of the through holes 17 are communicated with the fixed pipe 12. A plurality of guide sleeves two 14 are fixedly communicated with the bottom of the connecting plate 13 near the through holes 17. Through the setting of the through holes 17, it is convenient for the hydraulic oil inside the fixed pipe 12 to move into the guide sleeves two 14. One end of each guide sleeve two 14 is slidably connected with a guide rod two 15, and a spring two 16 is sleeved between the outer peripheral wall of each guide rod two 15 and the guide sleeve two 14. A pair of limiting rods 18 are fixedly connected between the inner bottom of the guide sleeve two 14 and the bottom of the connecting plate 13. A spring three 19 is sleeved on the outer peripheral wall of each limiting rod 18. The inner peripheral wall of each guide sleeve two 14 is slidably connected with a piston plate 20, and one end of the piston plate 20 is fixedly connected with the top end of the guide rod two 15. Through the mutual cooperation between the limiting rod 18, the spring three 19 and the piston plate 20, the guide rod two 15 is driven to reset, and the other end of the piston plate 20 is slidably connected with the outer peripheral wall of the limiting rod 18. The other end of the positioning drill bit 1 is fixedly connected with a connecting seat 21, and a plurality of uniformly distributed sliding grooves 22 are opened on the outer wall of the connecting seat 21. The inner wall of each sliding groove 22 is slidably connected with a slider 23. One ends of the plurality of sliders 23 are jointly fixedly connected with a reaming cylinder 9, and the top end of the reaming cylinder 9 is fixedly connected with the bottom end of the guide rod two 15. Through the mutual cooperation between the guide rod two 15, the spring two 16 and the guide sleeve two 14, the reaming cylinder 9 vibrates reciprocally during work, improving the hole opening efficiency.

[0027] As Figure 1 shown in conjunction with Figure 2 and Figure 4 in one embodiment, in order to improve the convenience of using the drill bit, the drilling assembly includes a set of cutting teeth 10 fixedly connected to the bottom end of the reaming cylinder 9. A plurality of uniformly distributed discharge holes 24 are formed in the outer peripheral wall of the reaming cylinder 9. The discharge holes 24 facilitate the discharge of waste chips generated during drilling. One end of the outer peripheral wall of the upper protective cover 2 and one end of the lower protective cover 3 are fixedly connected with fixing rings 4. One end of one of the fixing rings 4 is fixedly connected with a plurality of guide sleeves 5. One end of the other fixing ring 4 is fixedly connected with a plurality of guide rods 6. The outer peripheral walls of the guide rods 6 are slidably connected to the inner peripheral walls of the guide sleeves 5. A first spring 7 is sleeved between the outer peripheral wall of each guide rod 6 and the guide sleeve 5. Through the mutual cooperation among the first spring 7, the guide rod 6 and the guide sleeve 5, it is convenient to drive the lower protective cover 3 to reset. A scale line 8 is arranged on one side of the outer peripheral wall of the lower protective cover 3. The scale line 8 facilitates observing the drilling depth, thus improving the convenience of the drill bit for drilling.

[0028] Working principle: When in use, first, one end of the positioning drill bit 1 is abutted against a specified position, so that one end of the lower protective cover 3 contacts the working surface. Then, the positioning drill bit 1 is driven to rotate through the driving system. The reaming cylinder 9 and the cutting teeth 10 are driven to rotate by the positioning drill bit 1. At the same time, through the mutual cooperation between the external hydraulic oil supply system and the connecting pipe 11, the hydraulic oil moves into the fixed pipe 12. Then, through the arrangement of the through hole 17, the hydraulic oil moves into the guide sleeve 14. The piston plate 20 is pressed by the hydraulic oil. Then, the piston plate 20 presses the guide rod 15 to keep the reaming cylinder 9 and the cutting teeth 10 drilling synchronously with the positioning drill bit 1. After drilling to a certain depth, the hydraulic oil is recovered through the mutual cooperation among the through hole 17, the fixed pipe 12 and the connecting pipe 11. Then, through the mutual cooperation between the third spring 19 and the limiting rod 18, the piston plate 20 is driven to reset. Then, through the mutual cooperation among the second spring 16, the guide rod 15 and the guide sleeve 14, the reaming cylinder 9 and the cutting teeth 10 rotate and reciprocate vibrate during drilling, effectively improving the drilling efficiency of the drill bit. During the drilling process, the positioning drill bit 1 drives the upper protective cover 2 to move towards the drilling axis direction, so that the lower protective cover 3 moves along the inner peripheral wall of the upper protective cover 2, thereby driving the scale line 8 arranged on the outer peripheral wall of the lower protective cover 3 to retract into the upper protective cover 2. Through the reading of the scale line 8 at the port of the upper protective cover 2, the drilling depth at the time of observation can be obtained, effectively improving the convenience of the drill bit for drilling.

[0029] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A diamond brazed drill bit capable of quickly opening holes, comprising a positioning drill bit (1), one end of the positioning drill bit (1) is rotatably connected with an upper protective cover (2), and it is characterized in that: It further includes a vibration assembly provided at one end of the upper protective cover (2), and a drilling assembly is provided outside the positioning drill bit (1). The vibration assembly includes a lower protective cover (3) slidably connected to the inner peripheral wall of the upper protective cover (2). A fixed pipe (12) is fixedly connected to the inner top of the upper protective cover (2). A connecting pipe (11) is fixedly communicated with one side of the top of the upper protective cover (2). A connecting plate (13) is fixedly connected to the outer peripheral wall of the positioning drill bit (1) near the fixed pipe (12), and the top end of the connecting plate (13) is rotatably connected to one end of the fixed pipe (12). A plurality of through holes (17) are formed in the top of the connecting plate (13), and the top ends of the through holes (17) are communicated with the fixed pipe (12). A plurality of second guide sleeves (14) are fixedly communicated with the bottom of the connecting plate (13) near the through holes (17). One end of each second guide sleeve (14) is slidably connected with a second guide rod (15). A second spring (16) is sleeved between the outer peripheral wall of each second guide rod (15) and the second guide sleeve (14). A pair of limiting rods (18) are fixedly connected between the inner bottom of the second guide sleeve (14) and the bottom of the connecting plate (13). A third spring (19) is sleeved on the outer peripheral wall of each limiting rod (18). A piston plate (20) is slidably connected to the inner peripheral wall of each second guide sleeve (14), and one end of the piston plate (20) is fixedly connected to the top end of the second guide rod (15), and the other end of the piston plate (20) is slidably connected to the outer peripheral wall of the limiting rod (18).

2. The diamond brazed drill bit capable of quickly opening holes according to claim 1, wherein: The other end of the positioning drill bit (1) is fixedly connected with a connecting seat (21). A plurality of uniformly distributed sliding grooves (22) are formed in the outer wall of the connecting seat (21). A slider (23) is slidably connected to the inner wall of each sliding groove (22). One ends of the plurality of sliders (23) are commonly fixedly connected with a reaming cylinder (9), and the top end of the reaming cylinder (9) is fixedly connected to the bottom end of the second guide rod (15).

3. A diamond brazed drill bit capable of quickly opening holes according to claim 1, characterized in that: The drilling assembly includes a set of cutting teeth (10) fixedly connected to the bottom end of the reaming cylinder (9). A plurality of uniformly distributed discharge holes (24) are formed in the outer peripheral wall of the reaming cylinder (9).

4. The diamond brazed drill bit capable of quickly opening holes according to claim 3, characterized in that: One end of the outer peripheral wall of the upper protective cover (2) and one end of the lower protective cover (3) are both fixedly connected with a fixing ring (4). A plurality of first guide sleeves (5) are fixedly connected to one end of one of the fixing rings (4).

5. The diamond brazed drill bit capable of quickly opening holes according to claim 4, characterized in that: A plurality of first guide rods (6) are fixedly connected to one end of the other fixing ring (4), and the outer peripheral walls of the first guide rods (6) are slidably connected to the inner peripheral walls of the first guide sleeves (5). A first spring (7) is sleeved between the outer peripheral wall of each first guide rod (6) and the first guide sleeve (5).

6. The diamond brazed drill bit capable of quickly opening holes according to claim 5, wherein: A scale line (8) is provided on one side of the outer peripheral wall of the lower protective cover (3).

Images