Quickly-replaced chamfering drill, drilling equipment and replacement method

Abstract

The invention provides a chamfering drill capable of being rapidly replaced, drilling equipment and a replacing method, and relates to the technical field of drill bits, the chamfering drill comprises a drill bit, a drill rod arranged on the first side of the drill bit and two mounting openings formed in the second side of the drill bit, the number of the mounting openings is two, and the mounting openings are obliquely formed along the surface of the second side of the drill bit; the mounting opening comprises a mounting window located on the outer side and a mounting base located on the inner side, and the section size of the mounting window is smaller than that of the mounting base; the two first blades and the second blade are matched with the mounting openings respectively. According to the drilling device, the drilling efficiency is greatly improved, the stability in the transferring and drilling process is guaranteed, and the final drilling forming quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of drill bits, and in particular to a quick-replacement chamfer drill, drilling equipment and a replacement method. Background Art

[0002] Due to the popularity of wear-resistant plates, more and more easily worn parts such as liners and wear plates are gradually being replaced by wear-resistant plates instead of traditional castings. The installation of wear-resistant plates requires bolt hole connection. Because wear-resistant plates have a high hardness, generally not less than HRC45, traditional hole processing mainly relies on cutting, and countersinking mainly relies on CNC and local heating processing, which has low processing efficiency and high cost.

[0003] Traditional high-speed steel drills cannot meet the processing requirements of wear-resistant plates. Due to the high hardness of wear-resistant plates, their processing relies on carbide tools. During the processing of carbide tools, the instability of the equipment can easily cause the tool edge to break. Therefore, although traditional carbide tools can solve the problem of vacant processing of wear-resistant plates, they are limited by the characteristics of carbide tools and cannot be used in radial drilling machine processing environments in large quantities.

[0004] Customized integrated forming tools can solve the above problems, but customized integrated forming tools have a long cycle, high cost of use, and are not conducive to the replacement rhythm and tool maintenance costs in mass production. Summary of the Invention

[0005] In response to the above problems, the present invention provides a quick-replacement chamfer drill, drilling equipment and replacement method, which greatly improves the efficiency of drilling processing, ensures stability during transportation and drilling processing, and ensures the quality of the final drilling formation.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is: A quick-change chamfer drill comprises a drill bit, a drill rod arranged on a first side of the drill bit, and a mounting opening arranged on a second side of the drill bit, wherein the mounting openings are symmetrically arranged into two and are arranged obliquely along the second side surface of the drill bit, wherein the mounting opening comprises a mounting window located on the outside and a mounting base located on the inside, wherein the cross-sectional dimension of the mounting window is smaller than the cross-sectional dimension of the mounting base; and further comprises two first blades and a second blade respectively adapted to the mounting openings; wherein the first blade is engaged with the mounting opening along the mounting base, and after the two first blades are engaged, the second blade is fixed to the drill bit, and the second blade is positioned between the two first blades for tightening and limiting.

[0007] Preferably, the first blade includes a first cutting surface and a second cutting surface that intersect each other, the first cutting surface and the second cutting surface together form an outer cutting surface group with the vertex facing upward, and the first cutting surface gradually narrows on the side away from the second cutting surface to form an edge strip.

[0008] Preferably, the second blade surface has an opening at the edge thereof that penetrates through the mounting notch, and the mounting notches of the two second blade surfaces together form a mounting area for accommodating the second blade.

[0009] Preferably, the second blade includes a third blade surface and a fourth blade surface, and the third blade surface and the fourth blade surface together form an inner cutting surface group with the vertex facing upward. The outer sides of the third blade surface and the fourth blade surface are respectively provided with a pressing surface, and the pressing surface presses against the corresponding inner wall of the installation notch.

[0010] Preferably, the two abutting surfaces extend outward to have a crossing line, and the crossing line is located above the second blade.

[0011] Preferably, a mounting plate is fixed to the side wall of the second blade, and a mounting hole is opened on the surface of the mounting plate and passes through the mounting plate from top to bottom.

[0012] Preferably, an air blowing channel is formed inside the drill rod, the air blowing channel is connected to an air pump device, the air blowing channel includes a main air blowing pipe and two branch air blowing pipes, and the ends of the branch air blowing pipes are respectively connected to corresponding mounting bases.

[0013] Preferably, a detection device is further provided in the mounting base, the detection device is connected to a central controller, and the central controller is electrically connected to the air pumping device.

[0014] A drilling device for quickly replacing chamfer drills comprises at least two of the above-mentioned quickly replacing chamfer drills and a drilling machine body, wherein a clamping device for clamping a drill rod is provided at the lower end of the drilling machine body.

[0015] A method for replacing a quick-change chamfer drill, using the drilling equipment for the quick-change chamfer drill, when the drill bit of the first quick-change chamfer drill is worn to the point of being unusable, the clamping device is opened to remove the first quick-change chamfer drill while the second quick-change chamfer drill is installed in a predetermined position for clamping; after the first quick-change chamfer drill is removed, the second blade and the two first blades are removed in sequence; then the two first blades and the second blade are installed in sequence to complete the preparation of the drill bit.

[0016] The beneficial effects of the present invention are: Compared with the existing technology, through the above-mentioned structural design, there is no need to customize an integrated tool. It is only necessary to select and replace the first blade and the second blade according to the processing needs, which greatly reduces the cost of customized processing. At the same time, after the chamfer drill is worn to the point of being unusable, the first blade and the second blade can be quickly disassembled and replaced, which greatly improves the efficiency of drilling processing. Moreover, the two first blades and the second blade are in a tightly engaged state. During the transportation and drilling process, the first blade and the second blade are in a stable state of being tightly limited to each other, which ensures stability during the transportation and drilling process and ensures the quality of the final drilled hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the present invention without a blade installed.

[0019] Figure 3 For the present invention Figure 1 Schematic diagram of the top view structure.

[0020] Figure 4 For the present invention Figure 3 AA section structural diagram.

[0021] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the first blade of the present invention.

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the second blade of the present invention.

[0024] In the figure: 100, drill bit; 110, drill rod; 111, main air pipe; 112, branch air pipe; 120, installation opening; 121, installation window; 122, installation base; 200, first blade; 210, first cutting surface; 211, edge strip; 220, second cutting surface; 221, installation notch; 300, second blade; 310, third cutting surface; 320, fourth cutting surface; 330, mounting plate; 331, mounting hole; 340, pressing surface; 400, detection device; 410, conductive protrusion 1; 420, conductive protrusion 2. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] In order to solve the problems mentioned in the background technology, Figure 1 -Attached Figure 7, a quick-change chamfer drill includes a drill bit 100, a drill rod 110 arranged on a first side of the drill bit 100 and a mounting opening 120 arranged on a second side of the drill bit 100, the drill rod 110, the drill bit 100, and the mounting opening 120 are formed as one piece, and the mounting openings 120 are symmetrically arranged into two, and the mounting openings 120 are arranged obliquely along the second side surface of the drill bit 100, and the mounting opening 120 includes an outer mounting window 121 and an inner mounting base 122, and the cross-sectional size of the mounting window 121 is smaller than the cross-sectional size of the mounting base 122; mainly because the bottom of the mounting base 122 is arranged obliquely, and the cross-sectional size of the mounting window 121 is smaller than the cross-sectional size of the mounting base 122, so that the blade can be clamped and installed without the need for limiting by an installation tool, thereby improving the efficiency of blade installation and the stability during processing.

[0027] It also includes two first blades 200 and a second blade 300 respectively adapted to the mounting openings 120; wherein, the first blade 200 is engaged with the mounting opening 120 along the mounting base 122, and after the two first blades 200 are engaged, the second blade 300 is fixed to the drill bit 100, and the second blade 300 is located between the two first blades 200 for tightening and limiting.

[0028] The mounting base 122 here is arranged at an angle, and the two first blades 200 are both tilted and slid along the mounting base 122 into the mounting opening 120 to complete the installation limit. At the same time, the outer opening of the mounting opening 120 here is smaller than the inner base, and a wedge-shaped locking structure can be formed to limit the inner first blade 200, thereby ensuring the stability of the first blade 200 during transportation and drilling. At the same time, by installing the second blade 300 on the two first blades 200, the second blade 300 can be located between the two first blades 200 to further play a locking limit state, and can lock the first blade 200 in the direction of the only degree of freedom of the first blade 200 (along the moving direction of the mounting base 122), further avoiding the displacement of the first blade 200 during transportation and drilling, and ensuring the stability of the first blade 200 during processing.

[0029] In summary, through the above-mentioned structural design, there is no need to customize an integrated tool. It is only necessary to select and replace the first blade 200 and the second blade 300 according to the processing needs, which greatly reduces the cost of customized processing. At the same time, after the chamfer drill is worn to the point of being unusable, the first blade 200 and the second blade 300 can be quickly disassembled and replaced, which greatly improves the efficiency of drilling processing. Moreover, the two first blades 200 and the second blade 300 are in a tightly engaged state. During the transportation and drilling processing, the first blade 200 and the second blade 300 are in a stable state of being tightly limited to each other, which ensures stability during transportation and drilling processing, and ensures the quality of the final drilled hole.

[0030] Specifically; the first blade 200 includes a first cutting surface 210 and a second cutting surface 220 that intersect each other. The first cutting surface 210 and the second cutting surface 220 together form an outer cutting surface group with the vertex facing upward. The two outer cutting surface groups can be located at the outer position to continuously drill the wear-resistant lining. The wear-resistant lining can be better cold-processed and drilled by the raised vertex, which greatly improves the drilling efficiency; the size of the first cutting surface 210 away from the second cutting surface 220 gradually narrows to form a side strip 211. The internal size of the mounting opening 120 is similar to that of the first blade 200. The side strip 211 can be located at the outer position and narrowed to facilitate the first blade 200 to slide into the mounting opening 120 for positioning. At the same time, the tapered structural design of the first blade 200 can further improve the drilling of the wear-resistant lining.

[0031] At the edge of the second blade 220, there is an opening through the mounting notch 221. The mounting notches 221 of the two second blade surfaces 220 together form a mounting area for accommodating the second blade 300. The mounting notch 221 here is a rectangular structure, which can well accommodate the second blade 300. The second blade 300 is fixed to the drill bit 100 by bolts. The second blade 300 can be located at the center of the two first blades 200 to press and limit the first blades 200 on both sides, thereby ensuring the stability of the first blade 200 during drilling and installation and replacement.

[0032] Furthermore, the second blade 300 includes a third cutting surface 310 and a fourth cutting surface 320, and the third cutting surface 310 and the fourth cutting surface 320 together form an inner cutting surface group with the vertex facing upward. The outer sides of the third cutting surface 310 and the fourth cutting surface 320 are respectively provided with a pressing surface 340, and the pressing surface 340 is pressed against the inner wall of the corresponding installation notch 221. The inner cutting surface group can be located at the inner side to continuously drill the wear-resistant liner. The wear-resistant liner can be better cold-processed and drilled by the raised vertex, which greatly improves the drilling efficiency.

[0033] At the same time, the pressing surface 340 here can press against the inner wall of the installation notch 221. After the first blade 200 and the second blade 300 are installed, the first blade 200 cannot slide along the only sliding direction and can be stably limited in the installation opening 120 to ensure stability during the drilling process.

[0034] Furthermore, the two pressing surfaces 340 extend outward and have a cross line, which is located above the second blade 300. Through the above-mentioned structural design, the two pressing surfaces 340 are inclined toward the upper side, and the bottom of the pressing surface 340 is in a pressing state with the first blade 200. The pressing position is lower, which can better engage and limit the first blade 200. At the same time, the second blade 300 and the first blade 200 here are both made of cemented carbide. After the first blade 200 and the second blade 300 are compressed, it will not cause damage to the local structure, and the stability of the overall limit can be guaranteed.

[0035] At the same time, during the drilling process, the first blade 200 and the second blade 300 are both subjected to downward or sideways pressure, and the pressing pressure between the first blade 200 and the second blade 300 is reduced. The first blade 200 is in a stable state under the pressure limit of the mounting opening 120, and the second blade 300 is in a stable state under the pressure of the drill bit 100, ensuring the stability of the overall structure.

[0036] A mounting plate 330 is fixed to the side wall of the second blade 300, and a mounting hole 331 is provided on the surface of the mounting plate 330 extending vertically. The second blade 300 here is installed and fixed by bolts to ensure the stability of the second blade 300 limit. After installation, the second blade 300 is pressed against the first blades 200 on both sides. The second blade 300 can be in a stable state under clamping and can perform drilling processing. In order to further ensure the stability of the second blade 300 installation limit, the second blade 300 is limited and fixed by bolts, and the second blade 300 and the drill bit 100 can be hard-connected to ensure the stability of the second blade 300 during installation, avoid the second blade 300 from being separated from the drill bit 100 and the first blade 200, and ensure the stability of the installation limit.

[0037] There are two groups of mounting plates 330 symmetrically arranged, with mounting holes 331 on both sides. Through the above-mentioned structural design, the mounting holes 331 are aligned with the threaded holes on the surface of the drill bit 100. The second blade 300 is first engaged to the position between the two first blades 200 by knocking, and then the two bolts are turned to achieve installation limit.

[0038] The bolt here can be selected to have a smooth guide rod surface on the upper and middle parts and a threaded rod structure at the bottom. First, pass the bolt through the mounting hole 331 and insert it into the threaded hole to achieve installation positioning. Then, the second blade 300 is positioned while knocking the second blade 300. Finally, continue to rotate the bolt to achieve installation limit of the second blade 300.

[0039] The disassembly process is the opposite. First, remove the two bolts. After the two bolts are removed, knock the second blade 300 in the opposite direction to remove the second blade 300. Finally, slide the first blades 200 on both sides to remove the two first blades 200 in sequence.

[0040] Furthermore, an air blowing channel is formed inside the drill rod 110, and the air blowing channel is connected to an air pumping device. The air blowing channel includes a main air blowing pipe 111 and two branch air blowing pipes 112. The ends of the branch air blowing pipes 112 are respectively connected to the corresponding mounting bases 122. Through the above-mentioned structural design, the air pumping device can continuously blow gas into the main air blowing pipe 111 and the branch air blowing pipe 112, and the gas can eventually be ejected from around the first blade 200. On the one hand, it can achieve cooling of the first blade 200 to avoid excessive temperature affecting the quality of drill bit processing. At the same time, it also prevents debris generated by drilling from entering the mounting opening 120 to affect the installation limit of the first blade 200, thereby avoiding the subsequent phenomenon of being unable to plug and unplug.

[0041] A detection device 400 is also provided in the mounting base 122. The detection device 400 is connected to the central controller, and the central controller is electrically connected to the air pump device. The detection device 400 can monitor whether the two first blades 200 are in the correct installation position. Specifically, it can determine whether the two first blades 200 are in contact with the mounting base 122, so as to avoid the first blade 200 being improperly installed before drilling, resulting in accidents in subsequent drilling, and also avoid the first blade 200 being offset in position during the drilling process, resulting in damage to the normal drilling process of the first blade 200.

[0042] Specifically, the detection device 400 includes a conductive protrusion 1 410 and a conductive protrusion 2 420. The conductive protrusion 1 410 and the conductive protrusion 2 420 are externally connected to a conductive detection device. After the two first blades 200 and the second blade 300 are installed in place, the two first blades 200 and the second blade 300 can be located between the conductive protrusion 1 410 and the conductive protrusion 2 420 to play a conductive role. When the detection device 400 is conducting electricity normally, it means that the first blade 200 and the second blade 300 are installed in place and in the correct position; the air pumping device is controlled to pump out gas to cool and clean the area around the first blade 200.

[0043] There is no conduction between the conductive protrusion 1 410 and the conductive protrusion 2 420, indicating that the first blade 200 is not installed in place or the second blade 300 is not tightly pressed against the two first blades 200, reminding the staff to install or check the first blade 200 and the second blade 300 to ensure the safe and stable drilling process.

[0044] A drilling device for quickly replacing chamfer drills includes at least two of the above-mentioned quickly replacing chamfer drills, and also includes a drilling machine body. A clamping device for clamping a drill rod 110 is provided at the lower end of the drilling machine body. During the processing, a suitable blade is selected to be fixed on the surface of the chamfer drill, and then the chamfer drill is clamped and limited by the clamping device to ensure the stability of subsequent processing of the chamfer drill; the drill bit 100 here can be reused cyclically, and adaptive chamfer processing can be completed by simply replacing the first blade 200 according to processing requirements.

[0045] A method for replacing a quick-replacement chamfer drill, using the drilling equipment with the quick-replacement chamfer drill, when the drill bit of the first quick-replacement chamfer drill is worn to the point of being unusable, the clamping device is opened to remove the first quick-replacement chamfer drill and the second quick-replacement chamfer drill is installed in a predetermined position and clamped; the second chamfer drill is used to drill a wear-resistant liner to ensure continuous and stable drilling; the above-mentioned replacement method is completely consistent with traditional drill bit processing, does not add additional processes, and ensures efficient and convenient drilling processing.

[0046] After the first quick-change chamfer drill is removed, the second blade 300 and the two first blades 200 are disassembled in turn; then the two first blades 200 and the second blade 300 are installed in turn to complete the preparation of the drill bit. After the drill bit is replaced, the blade whose wear life has expired is replaced. The drilling process and the replacement of the blades are carried out simultaneously, which will not affect the drilling process, ensuring that the drilling process is carried out normally and efficiently; at the same time, during the replacement process, the first blade 200 and the second blade 300 can be replaced in a targeted manner according to the needs of the drilling process, reducing the parts that need to be replaced due to wear and tear and reducing the cost of production and processing.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 quick-change chamfer drill, comprising a drill bit (100), a drill rod (110) disposed on a first side of the drill bit (100), and a mounting opening (120) disposed on a second side of the drill bit (100), characterized in that: The mounting openings (120) are symmetrically arranged in two pieces, and the mounting openings (120) are arranged obliquely along the second side surface of the drill bit (100). The mounting openings (120) include a mounting window (121) located on the outside and a mounting base (122) located on the inside, and the cross-sectional size of the mounting window (121) is smaller than the cross-sectional size of the mounting base (122); The drill bit (100) further comprises two first blades (200) respectively adapted to the mounting openings (120) and a second blade (300); wherein the first blade (200) is engaged with the mounting opening (120) along the mounting base (122); after the two first blades (200) are engaged, the second blade (300) is fixed to the drill bit (100); the second blade (300) is located between the two first blades (200) to be pressed against and limited.

2. The quick-change chamfer drill according to claim 1, characterized in that: The first blade (200) comprises a first blade surface (210) and a second blade surface (220) intersecting each other, the first blade surface (210) and the second blade surface (220) jointly forming an outer cutting surface group with the vertex facing upward, and the first blade surface (210) gradually narrows on a side away from the second blade surface (220) to form a side strip (211).

3. The quick-change chamfer drill according to claim 2, characterized in that: An installation notch (221) is opened and penetrates the edge of the second blade surface (220), and the installation notches of the two second blade surfaces (220) together form an installation area for accommodating the second blade (300).

4. The quick-change chamfer drill according to claim 3, characterized in that: The second blade (300) comprises a third blade surface (310) and a fourth blade surface (320), wherein the third blade surface (310) and the fourth blade surface (320) together form an inner cutting surface group with the vertex facing upwards, and a pressing surface (340) is respectively provided on the outer side of the third blade surface (310) and the fourth blade surface (320), and the pressing surface (340) presses against the inner wall of the corresponding installation notch.

5. The quick-change chamfer drill according to claim 4, characterized in that: The two pressing surfaces (340) extend toward the outside and have a cross line, and the cross line is located above the second blade (300).

6. The quick-change chamfer drill according to claim 1, characterized in that: A mounting plate (330) is fixed to the side wall of the second blade (300), and a mounting hole (331) extending vertically through the surface of the mounting plate (330) is provided.

7. The quick-change chamfer drill according to any one of claims 1 to 6, characterized in that: An air blowing channel is formed inside the drill rod (110), the air blowing channel being connected to an air pump device. The air blowing channel comprises a main air blowing pipe (111) and two branch air blowing pipes (112), and the ends of the branch air blowing pipes (112) are respectively connected to corresponding mounting bases (122).

8. The quick-change chamfer drill according to claim 7, characterized in that: A detection device (400) is also provided in the mounting base (122), and the detection device (400) is connected to a central controller, and the central controller is electrically connected to the air pump device.

9. A drilling device with a quick-change chamfer drill, characterized in that: The invention comprises at least two quick-change chamfer drills according to any one of claims 1 to 8, and also comprises a drilling machine body, wherein a clamping device for clamping a drill rod (110) is provided at the lower end of the drilling machine body.

10. A method for quickly replacing a chamfer drill, characterized in that: In the drilling equipment using the quick-change chamfer drill according to claim 9, when the drill bit of the first quick-change chamfer drill is worn to the point where it can no longer be used, the clamping device is opened to remove the first quick-change chamfer drill and the second quick-change chamfer drill is installed in a predetermined position and clamped; After the first quick-change chamfer drill is removed, the second blade (300) and the two first blades (200) are disassembled in sequence; then the two first blades (200) and one second blade (300) are installed in sequence to complete the preparation of the drill bit.

Images