High-performance impact drill for hard and brittle product material machining

Abstract

The application discloses a kind of high-performance percussion drills for hard and brittle product material processing, including percussion drill bit, shell, rotating sleeve, drive motor, impact mechanism, rotating mechanism and heating coil;Drive motor is simultaneously connected with rotating mechanism and impact mechanism;Rotating mechanism is connected with rotating sleeve, to drive percussion drill bit rotation, impact mechanism locally extends into rotating sleeve, and impact mechanism is used to impact percussion drill bit;Heating coil is used to heat percussion drill bit.The application is drilled when hard and brittle product material is processed, rotating mechanism works alone, avoids surface crack or edge collapse problem caused by impact force premature intervention by soft rotary cutting mode, when drilling to certain depth, impact mechanism breaks deep layer material by periodic impact force, while greatly improving processing efficiency, reduce damage to material;Heating coil can reduce the brittleness of material by heating percussion drill bit, thereby reducing the risk of product crack and edge collapse.

Description

Technical Field

[0001] This invention relates to the field of impact drills, and more particularly to a high-performance impact drill for machining hard and brittle materials. Background Technology

[0002] Hard and brittle materials refer to materials with high hardness but poor ductility that are prone to brittle fracture under stress, such as ceramics, glass, crystalline silicon, and some high-hardness alloys. Due to their high hardness and low toughness, these materials are prone to cracking or breaking during drilling.

[0003] In existing technologies, when processing hard and brittle materials, the high hardness of these materials causes traditional impact drill bits to wear down or even chip during processing, leading to a shortened drill bit life, frequent drill bit replacements, and increased processing costs. Secondly, processing hard and brittle materials generates a large number of fine chips, which traditional impact drills cannot effectively remove, causing chips to accumulate in the processing area, increasing processing resistance and affecting processing efficiency. In addition, traditional impact drills have a relatively simple working mode, making it difficult to achieve independent control and rapid switching between rotation and impact functions. This makes it difficult to adapt to the special requirements of different processes in processing hard and brittle materials, resulting in insufficient processing accuracy and causing quality problems such as surface cracks, chipping, or breakage of the workpiece.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-performance impact drill that is not prone to chipping and avoids cracking of the workpiece during processing, for machining hard and brittle materials.

[0006] To achieve this objective, the present invention adopts the following technical solution: a high-performance impact drill for processing hard and brittle product materials, comprising an impact drill bit, a housing, a rotating sleeve, a drive motor, an impact mechanism, a rotating mechanism, and a heating coil;

[0007] The housing has a first cavity and a second cavity inside. The first cavity and the second cavity are connected and arranged perpendicularly. The rotating sleeve is located in the first cavity. The impact drill bit is connected to the rotating sleeve by a key. The impact drill bit can slide along the extension direction of the rotating sleeve.

[0008] The drive motor is located in the second cavity, and the output end of the drive motor is provided with a gear shaft, which is connected to both the rotation mechanism and the impact mechanism.

[0009] The rotating mechanism is connected to the rotating sleeve to drive the rotating sleeve to rotate. The impact mechanism extends partially into the rotating sleeve and is used to intermittently impact the impact drill bit inside the rotating sleeve.

[0010] The impact drill bit includes a drill rod portion and a drill head connected to the drill rod portion. The heating coil is wound along the extension direction of the drill rod portion and is used to heat the impact drill bit.

[0011] The drill head is provided with a plurality of drill blades spaced apart along the circumferential direction. The drill blades are spirally arranged along the extension direction of the drill head. A chip removal channel is formed between two adjacent drill blades. The chip removal channel is used to remove the chips generated by the drill blades when drilling on the machined surface.

[0012] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the number of drill bits on the drill head is three sets.

[0013] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the rotating mechanism includes a first gear, a rotating shaft, a bevel gear, and a gear disk;

[0014] The first gear is rotatably connected to the second cavity and is meshed with the gear shaft. The first gear is connected to the bevel gear through the rotating shaft.

[0015] The gear disk is sleeved on the rotating sleeve, and the bevel gear is connected to the gear disk by meshing. The gear disk is used to drive the impact drill bit inside the rotating sleeve to rotate when meshing.

[0016] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the impact mechanism includes a second gear, a rotary seat, a crank arm, and an impact head;

[0017] The second gear is rotatably connected to the second cavity and meshes with the gear shaft. The second gear is detachably connected to the rotating seat, and the gear shaft drives the rotating seat to rotate through the second gear.

[0018] One end of the crank arm is eccentrically connected to the top of the rotary seat, and the other end of the crank arm is connected to the impact head. The impact head is located inside the rotary sleeve. The crank arm is used to convert the rotational motion of the rotary seat into linear motion and drive the impact head to push the impact drill bit inside the rotary sleeve to move outward.

[0019] The high-performance impact drill for processing hard and brittle product materials, using the above technical solution, further includes a rotary separation component, which is connected to the gear disk to drive the gear disk to engage or disengage with the bevel gear.

[0020] The rotary separation assembly includes a first knob and a first lever. The first knob is located outside the housing, and the first lever is eccentrically connected to the bottom of the first knob. The first knob is used to drive the first lever to rotate.

[0021] The outer wall of the rotating sleeve is provided with a first sliding groove, and the inner wall of the gear disk is connected to the first sliding groove by a key. The gear disk can slide along the side wall of the rotating sleeve. The middle part of the gear disk is provided with an annular groove, and the first lever is located in the annular groove. When the first lever rotates, it abuts against the side wall of the annular groove to apply a thrust to the gear disk to engage or disengage with the gear shaft.

[0022] The high-performance impact drill for processing hard and brittle product materials, using the above technical solution, further includes an impact separation component. The impact separation component is connected to the rotary seat to drive the rotary seat to connect or separate from the second gear.

[0023] The impact separation assembly includes a second knob, a second lever, a push column, and a locking key. The top of the drive motor is provided with an end cover, and the end cover is provided with a receiving sleeve. The receiving sleeve is provided with a support base inside. The cross-sectional area of ​​the support base is smaller than the cross-sectional area of ​​the receiving sleeve. The support base is used to support the push column, and part of the push column is suspended and exposed outside the support base.

[0024] The second knob is located on the side of the housing. The second lever is eccentrically connected to the second knob. The second lever extends into the receiving sleeve, and the end of the second lever abuts against the push column. The second lever is used to drive the push column to move up and down as the second knob rotates.

[0025] The rotating seat is hollow inside, and there are waist-shaped grooves on both sides of the rotating seat. The locking key is located in the waist-shaped groove. The second gear has a locking groove inside that is positioned and connected to the locking key. The locking key is used to lock into or separate from the locking groove as the push column moves up and down.

[0026] In the high-performance impact drill for processing hard and brittle product materials described above, the inner wall of the rotating sleeve is provided with a second sliding groove, and the outer wall of the impact drill bit is connected to the second sliding groove by a key.

[0027] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the end face of the drill head has a chip removal guide groove, the chip removal guide groove is located between two adjacent drill cutting edges, and the chip removal guide groove gradually slopes downward from the inside to the outside to form a slope structure.

[0028] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the impact mechanism further includes an elastic pusher, which is disposed in a rotating sleeve between the impact head and the impact drill bit.

[0029] Using the above technical solution, in the high-performance impact drill for processing hard and brittle product materials, the impact drill bit is made of cemented carbide, and the surface of the impact drill bit is coated with a diamond coating.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] In this invention, when drilling hard and brittle materials, the rotary mechanism operates independently, using a gentle rotary cutting method to avoid surface cracks or chipping caused by premature impact, thus providing a stable reference for subsequent processing. Once drilling reaches a certain depth, the impact mechanism intervenes, rapidly breaking the deep material through periodic impact force. This complements the rotary cutting, significantly improving processing efficiency while reducing material damage. Furthermore, the heating coil reduces the brittleness of the material by heating the impact drill bit, thereby reducing the risk of cracks and chipping and optimizing processing quality. The spiral-shaped drill bit and chip removal channel structure allow for rapid chip removal during the machining process, preventing chip accumulation from hindering processing. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the installation structure of the impact mechanism and the rotation mechanism of the present invention;

[0036] Figure 3 This is a schematic diagram of the overall exploded structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the installation structure of the rotating separation component of the present invention;

[0038] Figure 5 This is a schematic diagram of the installation structure of the impact separation component of the present invention;

[0039] Figure 6 This is a schematic diagram of the mounting structure of the push column of the present invention;

[0040] Figure 7 This is a schematic diagram of the impact drill bit structure of the present invention. Detailed Implementation

[0041] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] like Figures 1 to 7 As shown, this embodiment of the invention provides a high-performance impact drill for processing hard and brittle product materials, including an impact drill bit 1, a housing 2, a rotating sleeve 3, a drive motor 4, an impact mechanism 5, a rotating mechanism 6, and a heating coil 7.

[0045] The housing 2 has a first cavity 21 and a second cavity 22 inside. The first cavity 21 and the second cavity 22 are connected and arranged vertically. The rotating sleeve 3 is located in the first cavity 21. The impact drill bit 1 is connected to the rotating sleeve 3 by a key. The impact drill bit 1 can slide along the extension direction of the rotating sleeve 3. The first cavity 21 provides a closed working space for the rotating sleeve 3 and the impact drill bit 1, while the second cavity 22 is used to accommodate the drive device and the transmission mechanism. The impact drill bit 1 is connected to the rotating sleeve 3 by a key, so that the impact drill bit 1 and the rotating sleeve 3 can rotate synchronously. The impact drill bit 1 can slide along the extension direction of the rotating sleeve 3, so that the impact drill bit 1 can move freely when it is subjected to the impact mechanism 5, thereby realizing intermittent impact action.

[0046] The drive motor 4 is located inside the second cavity 22. The output end of the drive motor 4 is equipped with a gear shaft 41, which is connected to both the rotating mechanism 6 and the impact mechanism 5. The rotating mechanism 6 is connected to the rotating sleeve 3 to drive the rotating sleeve 3 to rotate. The impact mechanism 5 partially extends into the rotating sleeve 3 and is used to intermittently impact the impact drill bit 1 inside the rotating sleeve 3. The drive motor 4 is located inside the second cavity 22, and its output end is equipped with a gear shaft 41. The gear shaft 41 serves as the core power transmission component, connecting with... The rotating mechanism 6 and the impact mechanism 5 are connected simultaneously, which can distribute the rotational power of the drive motor 4 to the two functional modules, so that the rotation and impact movements are coordinated. Specifically, the rotating mechanism 6 is connected to the rotating sleeve 3, which can transmit the rotational power of the drive motor 4 to the rotating sleeve 3, so that the rotating sleeve 3 drives the impact drill 1 to rotate at high speed, thereby generating a drilling action during the processing. At the same time, the impact mechanism 5 extends into the interior of the rotating sleeve 3 and acts directly with the impact drill 1, converting the rotational power of the drive motor 4 into an impact motion along the axial direction of the impact drill 1 through periodic impact force. In the process of machining hard and brittle products, the rotary mechanism 6 works independently at the beginning of drilling, slowly contacting the workpiece surface through rotary cutting. This gentle machining method can effectively avoid cracks or chipping on the workpiece surface caused by premature impact force, while providing a flat and stable cutting reference for subsequent machining. When drilling reaches a certain depth, the impact mechanism 5 starts to operate. At this time, the material on the workpiece surface has been initially removed, and the drilling pressure is gradually transferred to the internal material. The impact mechanism 5 can work in conjunction with the rotary mechanism 6 through periodic impact force to quickly remove hard and brittle material in the form of fragmentation during deep machining. This staged machining mode can not only effectively protect the integrity of the workpiece surface and the machining quality, but also improve the machining efficiency of hard and brittle materials.

[0047] like Figure 7As shown, the impact drill bit 1 includes a drill rod portion 11 and a drill head 12 connected to the drill rod portion 11. The heating coil 7 is wound along the extension direction of the drill rod portion 11 and is used to heat the impact drill bit 1. For hard and brittle materials, the heated impact drill bit 1 can reduce the brittleness of the material in the cutting area, transforming the hard and brittle material from a state of high hardness and high brittleness to a state of slightly ductility, thereby reducing the processing resistance. In this way, cracks and chipping caused by excessive local stress concentration can be reduced.

[0048] The drill head 12 has three spaced-apart drill bits 121 arranged spirally along the extension direction of the drill head 12. A chip removal channel 122 is formed between two adjacent drill bits 121 to remove chips generated by the drill bits 121 during drilling on the machined surface. During machining, the three spaced-apart drill bits 121 can effectively distribute the machining load, making the cutting force of each drill bit 121 evenly distributed, avoiding chipping caused by excessive force on a single drill bit 121. In the machining of hard and brittle materials, the accumulation of chips increases drilling resistance, thereby affecting machining efficiency. Through the cooperation of the spiral drill bits 121 and the chip removal channel 122, chips can be quickly discharged from the machining area, ensuring smooth drilling.

[0049] like Figure 2 and Figure 3 As shown, the rotating mechanism 6 further includes a first gear 61, a rotating shaft 62, a bevel gear 63, and a gear disk 64. The first gear 61 is rotatably connected to the second cavity 22 and is meshed with the gear shaft 41. The first gear 61 is connected to the bevel gear 63 through the rotating shaft 62. The gear disk 64 is sleeved on the rotating sleeve 3. The bevel gear 63 and the gear disk 64 are meshed. The gear disk 64 is used to drive the impact drill bit 1 inside the rotating sleeve 3 to rotate when meshed. During the processing, the output end of the drive motor 4 transmits power to the first gear 61 through the gear shaft 41. The first gear 61 can rotate freely in the second cavity 22 and transmit power to the rotating shaft 62. The rotating shaft 62, as an intermediate transmission component, is connected to the bevel gear 63 and can drive the gear disk 64, which is meshed with the bevel gear 63, to rotate. When the gear disk 64 rotates, it can drive the rotating sleeve 3 to rotate synchronously. The impact drill bit 1 is connected to the rotating sleeve 3 through a key connection, thereby realizing the rotary drilling action of the impact drill bit 1.

[0050] like Figure 2 and Figure 3As shown, the impact mechanism 5 further includes a second gear 51, a rotating seat 52, a crank arm 53, and an impact head 54. The second gear 51 is rotatably connected to the second cavity 22 and meshes with the gear shaft 41. The second gear 51 is detachably connected to the rotating seat 52. The gear shaft 41 drives the rotating seat 52 to rotate through the second gear 51. One end of the crank arm 53 is eccentrically connected to the top of the rotating seat 52, and the other end of the crank arm 53 is connected to the impact head 54. The impact head 54 is located inside the rotating sleeve 3. The crank arm 53 is used to convert the rotational motion of the rotating seat 52 into linear motion and drive the impact head 54 to push the impact drill bit 1 inside the rotating sleeve 3 outward. During the processing, the gear shaft 41 serves as the power input shaft, which can drive the rotating seat 52 to rotate synchronously through the second gear 51. The top of the rotating seat 52 is connected to one end of the crank arm 53 through an eccentric point. In this way, the rotational motion of the rotating seat 52 can be converted into periodic linear motion through the crank arm 53. The other end of the crank arm 53 is connected to the impact head 54, thereby pushing the impact drill bit 1 to move outward periodically through the impact head 54 to apply intermittent impact force to the processed material.

[0051] like Figure 4 As shown, further, it also includes a rotary separation assembly 8, which is connected to the gear disk 64 to drive the gear disk 64 to engage or disengage with the bevel gear 63. The rotary separation assembly 8 includes a first knob 81 and a first lever 82. The first knob 81 is located outside the housing 2, and the first lever 82 is eccentrically connected to the bottom of the first knob 81. The first knob 81 is used to drive the first lever 82 to rotate. The outer wall of the rotating sleeve 3 is provided with a first sliding groove 31. The inner wall of the gear disk 64 is connected to the first sliding groove 31 by a key. The gear disk 64 can slide along the side wall of the rotating sleeve 3. The gear disk 64 is provided with an annular groove 640 in the middle. The first lever 82 is located in the annular groove 640. When the first lever 82 rotates, it abuts against the side wall of the annular groove 640 to apply a thrust to the gear disk 64 to engage or disengage with the gear shaft 41. In the meshing state, the gear disk 64 drives the rotating sleeve 3 to rotate together via a key connection, thereby transmitting the power of the rotating mechanism 6 to the impact drill bit 1 to achieve synchronous rotating cutting; when the gear disk 64 moves to the separation position along the first slide groove 31 under the action of the first lever 82, the meshing of the gear disk 64 and the bevel gear 63 is disengaged. At this time, the rotating sleeve 3 and the impact drill bit 1 stop rotating, and the processing mode is switched to a single impact mode to avoid unnecessary damage to the workpiece surface or special structure caused by rotating cutting.

[0052] like Figure 5 and Figure 6As shown, further, it also includes an impact separation assembly 9, which is connected to the rotating seat 52 to drive the rotating seat 52 to connect or separate from the second gear 51. The impact separation assembly 9 includes a second knob 91, a second lever 92, a push column 93, and a locking key 94. The top of the drive motor 4 is provided with an end cover 40, and the end cover 40 is provided with a receiving sleeve 401. The receiving sleeve 401 is provided with a support base 402 inside, and the cross-sectional area of ​​the support base 402 is smaller than the cross-sectional area of ​​the receiving sleeve 401. The support base 402 is used to support the push column 93, and part of the push column 93 is suspended and exposed outside the support base 402. The second knob 91 is located at the... On the side end of the housing 2, the second lever 92 is eccentrically connected to the second knob 91. The second lever 92 extends into the receiving sleeve 401, and the end of the second lever 92 abuts against the push column 93. The second lever 92 is used to drive the push column 93 to move up and down as the second knob 91 rotates. The rotating seat 52 is hollow inside, and waist-shaped grooves 520 are provided on both sides of the rotating seat 52. The locking key 94 is located in the waist-shaped groove 520. The second gear 51 is provided with a locking groove 510 that is positioned and connected to the locking key 94. The locking key 94 is used to lock into or separate from the locking groove 510 as the push column 93 moves up and down. When the push column 93 moves upward under the action of the second lever 92, the locking key 94 rises accordingly and disengages from the slot 510 of the second gear 51, disconnecting the power transmission between the rotating seat 52 and the impact mechanism 5, thus stopping the impact mechanism 5 from working. Conversely, when the second lever 92 shifts downward under the rotation of the second knob 91, the push column 93 abuts against the support seat 402 under the action of gravity, and the locking key 94 re-embeds into the slot 510 of the second gear 51, thereby connecting the impact mechanism 5. At this time, the rotating seat 52 can receive the power transmission from the second gear 51, thereby driving the impact head 54 to perform periodic impact actions. This setting allows for precise control of the activation or disengagement of the impact mechanism 5, effectively avoiding unnecessary impact damage to the workpiece surface when processing hard and brittle materials. Specifically, in the initial stage of processing, the impact function can be turned off, and only rotary drilling can be used to protect the workpiece surface. After the material removal enters a stable stage, the impact function can be turned on to improve the drilling efficiency of the material.

[0053] like Figure 4 As shown, the inner wall of the rotating sleeve 3 is provided with a second sliding groove 32, and the outer wall of the impact drill bit 1 is connected to the second sliding groove 32 by a key. This arrangement allows the impact mechanism 5 to push the impact drill bit 1 outward along the second sliding groove 32 when it is working.

[0054] like Figure 7As shown, furthermore, the end face of the drill bit 12 has a chip removal guide groove 123, which is located between two adjacent drill cutting edges 121. The chip removal guide groove 123 gradually slopes downward from the inside to the outside, forming a slope structure. During the machining process, when the drill cutting edge 121 cuts hard and brittle materials, it will generate a large number of fine chips. These chips will accumulate in the machining area, increasing the cutting resistance. By positioning the chip removal guide groove 123 between adjacent drill cutting edges 121 and forming a natural chip removal path through its inclined slope structure, the chips generated by cutting are conveyed along the slope direction into the chip removal channel 122 under the action of drilling force.

[0055] like Figure 3 As shown, the impact mechanism 5 further includes an elastic pusher 55, which is disposed within the rotating sleeve 3 between the impact head 54 and the impact drill bit 1. The elastic pusher 55 acts as a buffer, absorbing part of the force applied by the impact head 54 and gradually releasing it onto the impact drill bit 1, effectively preventing the workpiece from breaking due to the instantaneous high-intensity impact of the impact drill bit 1.

[0056] Furthermore, the impact drill bit 1 is made of cemented carbide, and its surface is coated with a diamond coating. During processing, the cemented carbide has high hardness and high compressive strength, enabling the impact drill bit 1 to withstand the high cutting and impact forces generated when machining hard and brittle materials without easily chipping. The diamond coating provides the impact drill bit 1 with extremely high surface hardness and wear resistance, and also has an extremely low coefficient of friction, which reduces processing resistance when drilling hard and brittle materials, preventing cracks or breakage of the materials during drilling, and effectively improving the performance of the impact drill.

[0057] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-performance impact drill for machining hard and brittle materials, characterized in that, It includes an impact drill bit, a housing, a rotating sleeve, a drive motor, an impact mechanism, a rotating mechanism, and a heating coil; The housing has a first cavity and a second cavity inside. The first cavity and the second cavity are connected and arranged perpendicularly. The rotating sleeve is located in the first cavity. The impact drill bit is connected to the rotating sleeve by a key. The impact drill bit can slide along the extension direction of the rotating sleeve. The drive motor is located in the second cavity, and the output end of the drive motor is provided with a gear shaft, which is connected to both the rotation mechanism and the impact mechanism. The rotating mechanism is connected to the rotating sleeve to drive the rotating sleeve to rotate. The impact mechanism extends partially into the rotating sleeve and is used to intermittently impact the impact drill bit inside the rotating sleeve. The impact drill bit includes a drill rod portion and a drill head connected to the drill rod portion. The heating coil is wound along the extension direction of the drill rod portion and is used to heat the impact drill bit. The drill head is provided with a plurality of drill blades spaced apart along the circumferential direction. The drill blades are spirally arranged along the extension direction of the drill head. A chip removal channel is formed between two adjacent drill blades. The chip removal channel is used to remove the chips generated by the drill blades when drilling on the machined surface. The rotating mechanism includes a first gear, a rotating shaft, a bevel gear, and a gear disk; The first gear is rotatably connected to the second cavity and is meshed with the gear shaft. The first gear is connected to the bevel gear through the rotating shaft. The gear disk is sleeved on the rotating sleeve, and the bevel gear is connected to the gear disk by meshing. The gear disk is used to drive the impact drill bit inside the rotating sleeve to rotate when meshing. It also includes a rotary separation assembly connected to the gear disk to drive the gear disk to engage or disengage with the bevel gear; The rotary separation assembly includes a first knob and a first lever. The first knob is located outside the housing, and the first lever is eccentrically connected to the bottom of the first knob. The first knob is used to drive the first lever to rotate. The outer wall of the rotating sleeve is provided with a first sliding groove, the inner wall of the gear disk is connected to the first sliding groove by a key, the gear disk can slide along the side wall of the rotating sleeve, the middle part of the gear disk is provided with an annular groove, the first lever is located in the annular groove, and the first lever abuts against the side wall of the annular groove when rotating, so as to apply a thrust to the gear disk to engage or disengage with the gear shaft; The impact mechanism includes a second gear, a rotary seat, a crank arm, and an impact head; The second gear is rotatably connected to the second cavity and meshes with the gear shaft. The second gear is detachably connected to the rotating seat, and the gear shaft drives the rotating seat to rotate through the second gear. One end of the crank arm is eccentrically connected to the top of the rotary seat, and the other end of the crank arm is connected to the impact head. The impact head is located inside the rotary sleeve. The crank arm is used to convert the rotational motion of the rotary seat into linear motion and drive the impact head to push the impact drill bit inside the rotary sleeve to move outward. It also includes an impact separation assembly, which is connected to the rotating seat to drive the rotating seat to connect or disconnect from the second gear; The impact separation assembly includes a second knob, a second lever, a push column, and a locking key. The top of the drive motor is provided with an end cover, and the end cover is provided with a receiving sleeve. The receiving sleeve is provided with a support base inside. The cross-sectional area of ​​the support base is smaller than the cross-sectional area of ​​the receiving sleeve. The support base is used to support the push column, and part of the push column is suspended and exposed outside the support base. The second knob is located on the side of the housing. The second lever is eccentrically connected to the second knob. The second lever extends into the receiving sleeve, and the end of the second lever abuts against the push column. The second lever is used to drive the push column to move up and down as the second knob rotates. The rotating seat is hollow inside, and there are waist-shaped grooves on both sides of the rotating seat. The locking key is located in the waist-shaped groove. The second gear has a locking groove inside that is positioned and connected to the locking key. The locking key is used to lock into or separate from the locking groove as the push column moves up and down.

2. The high-performance impact drill for machining hard and brittle product materials according to claim 1, characterized in that, The drill bit has three sets of drill bits.

3. The high-performance impact drill for machining hard and brittle product materials according to claim 1, characterized in that, The inner wall of the rotating sleeve is provided with a second sliding groove, and the outer wall of the impact drill bit is connected to the second sliding groove by a key.

4. The high-performance impact drill for machining hard and brittle product materials according to claim 1, characterized in that, The end face of the drill bit has a chip removal guide groove, which is located between two adjacent drill cutting edges. The chip removal guide groove gradually slopes downward from the inside to the outside to form a slope structure.

5. The high-performance impact drill for machining hard and brittle product materials according to claim 1, characterized in that, The impact mechanism also includes an elastic pusher, which is disposed in a rotating sleeve between the impact head and the impact drill bit.

6. The high-performance impact drill for machining hard and brittle product materials according to any one of claims 1-5, characterized in that, The impact drill bit is made of cemented carbide, and its surface is coated with a diamond coating.

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