WO2021129512A1 - 一种高速高效钻头 - Google Patents

一种高速高效钻头 Download PDF

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Publication number
WO2021129512A1
WO2021129512A1 PCT/CN2020/137269 CN2020137269W WO2021129512A1 WO 2021129512 A1 WO2021129512 A1 WO 2021129512A1 CN 2020137269 W CN2020137269 W CN 2020137269W WO 2021129512 A1 WO2021129512 A1 WO 2021129512A1
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WO
WIPO (PCT)
Prior art keywords
working ring
discharge port
drill bit
speed
sides
Prior art date
Application number
PCT/CN2020/137269
Other languages
English (en)
French (fr)
Inventor
宋京新
龙慧玲
梁安宁
郭新玲
叶勇
刘人杰
王志勇
Original Assignee
桂林创源金刚石有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201922348398.9U external-priority patent/CN211566484U/zh
Priority claimed from CN201911348484.8A external-priority patent/CN110919877A/zh
Application filed by 桂林创源金刚石有限公司 filed Critical 桂林创源金刚石有限公司
Priority to JP2022538692A priority Critical patent/JP7412042B2/ja
Priority to EP20908252.8A priority patent/EP4082737A4/en
Priority to KR1020227020807A priority patent/KR102653537B1/ko
Publication of WO2021129512A1 publication Critical patent/WO2021129512A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/06—Drills with lubricating or cooling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Definitions

  • the invention relates to the field of processing tools, in particular to a high-speed and high-efficiency drill.
  • the existing drill bit is shown in Figure 1-3, including a working ring 1 and a discharge port 2.
  • the working ring 1 is fixed on the lower end of the base 7, and an abrasive layer such as diamond particles is provided on the surface of the working ring 1, and the wall thickness of the working ring 1 is greater than the wall thickness of the base 7.
  • the cooling water flows in from the inside of the base 7 and then flows downwards between the inner wall of the working ring 1 and the glass 8 (the gap between the diamond particles forms the cooling water flow), and then flows out from the lower end of the working ring 1 to the outside , And finally discharged upward through the outer wall of the working ring 1 and the glass 8 (as shown by the arrow in Figure 3).
  • the grinding debris carried by the cooling water passes through the discharge port 2 and then passes through the discharge groove 6 and the gap between the outer wall of the working ring 1 and the glass 8 to throw the debris out.
  • the discharge port 2 is used to discharge the material (a mixture of cooling water and grinding debris) when the working ring 1 rotates to ensure normal processing.
  • the water inlet space is the gap W between the diamond particles on the working ring 1 and the glass, and because W is small, if you want to discharge the processing chips in time to ensure normal processing, you usually increase the water inlet or increase the water pressure. achieve. Increasing the amount of water inflow will cause waste of water resources, and at the same time, increasing the manufacturing cost is not conducive to environmental protection.
  • the method of increasing water pressure is affected by the water pressure at the moment when the hole is drilled on the glass, which can easily cause the glass to collapse, especially It is more prominent when processing thin glass.
  • the two sides of the bottom of the discharge port 2 of the existing drill are arranged in parallel, and the symmetrical center lines of the two sides of the bottom of the discharge port 2 pass through the center of the bottom surface of the working ring 1.
  • the technical problem to be solved by the present invention is to provide a high-speed and high-efficiency drill bit.
  • a high-speed and high-efficiency drill bit including a working ring and a discharge port;
  • the working ring has a cylindrical structure, and the discharge port is provided with a plurality of discharge ports distributed in a ring shape on the The bottom of the side wall of the working ring is used to discharge the scraps when the working ring is rotated; the symmetrical centerline of the two sides of the bottom of the discharge port or the center line of the angle formed by the two sides of the bottom of the discharge port does not pass The center of the circle on the bottom surface of the working ring.
  • the beneficial effect of the present invention is that as the working ring rotates in the discharging port, the scraps will be mechanically pushed from the discharging port toward the outside of the working ring, and the scraps are easier to be discharged from the discharging port under the action of the mechanical thrust. , To ensure that the drill bit can work at high speed and high efficiency.
  • the present invention can also be improved as follows:
  • the two sides of the bottom of the discharge port are arranged in parallel, the symmetrical center line does not pass through the center of the bottom surface of the working ring, and the two sides of the bottom of the discharge port are spirally arranged with respect to the center of the bottom surface of the working ring, And the spiral direction is consistent with the rotating direction of the working ring.
  • the beneficial effect of adopting the above-mentioned further solution is that under the action of the centrifugal force of the rotation of the working ring, the scraps can be discharged outward along the discharge port, and the discharge speed of the scraps is increased.
  • the two sides of the bottom of the discharge port are respectively a first side and a second side in the direction of rotation of the working ring, and the first side and the second side form an angle
  • the center line of the working ring does not pass through the center of the bottom surface of the working ring; one end of the first side is at a corresponding position on the inner side wall of the working ring, and the other end faces the outer side of the working ring and in the direction of rotation of the working ring Deflection angle ⁇ in the opposite direction of the second side; one end of the second side is at a corresponding position on the inner side wall of the working ring, and the other end of the second side is at a deflection angle ⁇ toward the outside of the working ring and in the direction of rotation of the working ring , And ⁇ > ⁇ .
  • the beneficial effect of adopting the above-mentioned further solution is that when the working ring rotates, the second side of the discharge port does not hinder the chips pushed out by the first side, and the discharge speed of the chips is increased in the radial direction of the working ring.
  • the two sides of the discharge port are arranged in parallel, and the symmetrical center lines on both sides of the bottom of the discharge port do not pass through the center of the bottom surface of the working ring; the two sides of the discharge port face the working ring with respect to the bottom surface of the working ring.
  • the rotation direction is obliquely arranged, and one end of the two sides of the discharge port is at a corresponding position on the inner side wall of the working ring, and the other end thereof is swayed by a preset angle toward the outside of the working ring and in the direction of rotation of the working ring .
  • the beneficial effect of adopting the above-mentioned further solution is that when the working ring rotates, one of the two sides of the discharging port forms an upward and outward thrust on the chips, and the discharge speed of the chips is increased in the axial direction of the working ring.
  • a spare discharge port corresponding to the discharge port is provided on the side wall of the working ring, and the spare discharge port is located above the discharge port and wears more than the axial wear of the working ring. After the discharge port, it is used to discharge the scraps.
  • the beneficial effect of adopting the above-mentioned further scheme is to ensure that the working ring can be processed normally even after axial wear.
  • top of the discharge port has a rounded structure
  • bottom and top of the spare discharge port are both rounded structures.
  • a plurality of discharging grooves are uniformly provided on the outer side wall of the working ring along the circumferential direction, the lower end of the discharging groove extends to the bottom of the working ring, and the upper end of the discharging groove extends obliquely upward.
  • discharging groove is spiral, and the spiral direction is consistent with the rotation direction of the working ring.
  • the beneficial effect of adopting the above-mentioned further solution is that it is convenient for the material scraps to be discharged upward along the discharging groove.
  • discharge port and the spare discharge port are located at corresponding positions in the discharge groove.
  • the beneficial effect of adopting the above-mentioned further solution is that the scraps discharged from the discharge port are discharged upward through the discharge groove for the first time.
  • the two side surfaces of the discharge port and the spare discharge port are a first side surface and a second side surface in the direction of rotation of the working ring, respectively, and the two side surfaces of the discharge groove are in the direction of rotation of the working ring.
  • the front and rear are respectively a third side surface and a fourth side surface, and the first side surface overlaps the third side surface, and the second side surface and the fourth side surface are spaced apart.
  • the beneficial effect of adopting the above-mentioned further scheme is that the cooling water flowing out through the spare discharge port has the best boosting effect on the discharge of the scraps in the discharge trough and improves the discharge efficiency.
  • Figure 1 is a three-dimensional view of an existing drill bit
  • Figure 2 is a bottom view of the existing drill bit
  • Figure 3 is a schematic diagram of water flow when the drill bit is processing glass
  • Figure 4 is a three-dimensional diagram of Embodiment 1 of the present invention.
  • Figure 5 is a bottom view of Embodiment 1 of the present invention.
  • Figure 6 is a three-dimensional diagram of the second embodiment of the present invention.
  • Figure 7 is a bottom view of Embodiment 2 of the present invention.
  • Figure 8 is a schematic diagram of the radial discharge of debris in the second embodiment of the present invention.
  • Figure 9 is a schematic diagram of the radial discharge of the existing drill bits
  • FIG. 10 is a three-dimensional diagram of Embodiment 3 of the present invention.
  • Figure 11 is a front view of Embodiment 3 of the present invention.
  • Figure 12 is a bottom view of Embodiment 3 of the present invention.
  • Figure 13 is a cross-sectional view taken along line A-A of Figure 12;
  • FIG. 14 is a three-dimensional diagram of Embodiment 4 of the present invention.
  • Figure 15 is a front view of the fourth embodiment of the present invention.
  • Figure 16 is an enlarged view of the bottom of the working ring in the second embodiment of the present invention after being used for a period of time;
  • Fig. 17 is a schematic diagram of angle ⁇ and angle ⁇ ;
  • the dashed line indicates the symmetrical centerline of the two sides of the bottom of the discharge port or the center line of the angle formed by the two sides of the bottom of the discharge port.
  • the direction of the solid arrow indicates the direction of rotation of the working ring, and the arrow of the dashed line indicates the direction of the chip discharge .
  • Working ring 2. Discharge port, 3. First side, 4. Second side, 5. Spare discharge port, 6, Discharge trough, 7, substrate, 8, glass, 9, first Side, 10, second side, 11, third side, 12, fourth side.
  • a high-speed and high-efficiency drill bit includes a working ring 1 and a discharge port 2.
  • the working ring 1 has a cylindrical structure, and the discharging ports 2 are provided with a plurality of discharging ports 2 which are distributed annularly at the bottom of the side wall of the working ring 1 to discharge the chips when the working ring 1 is rotated and processed.
  • the two sides of the bottom of the discharge port 2 are arranged in parallel, and the symmetrical center line does not pass through the center of the bottom surface of the working ring 1, and the two sides of the bottom of the discharge port 2 are spiral relative to the center of the bottom surface of the working ring 1 Arranged, and the spiral direction is consistent with the direction in which the working ring 1 rotates.
  • the chips under the action of the centrifugal force of the rotation of the working ring 1, the chips can be discharged outward along the discharge port 1, which improves the discharge speed of the chips and ensures that the drill bit can work efficiently under high-speed rotation.
  • the side wall of the working ring 1 is provided with a spare discharge port 5 corresponding to the discharge port 2.
  • the spare discharge port 5 is located above the discharge port 2 and in the axial direction of the working ring 1. After the abrasion exceeds the discharge port 2, it is used for discharging chips.
  • the working ring 1 will continue to wear along the axial direction with continuous machining. When the wear reaches a certain level, it will exceed the discharge port 2, and the second layer of spare discharge port 5 will become a new discharge port 2.
  • the discharge port 2 has the same structure as the first discharge port 2.
  • the upper spare discharge port 5 is continuously formed into a new discharge port 2 until the working ring 1 is worn out to work.
  • the outer side wall of the working ring 1 is evenly provided with a plurality of discharging grooves 6 along the circumferential direction.
  • the lower end of the discharging groove 6 extends to the bottom of the working ring 1, and the upper end of the discharging groove 6 extends obliquely upward.
  • the groove 6 has a spiral shape, and the spiral direction is consistent with the rotation direction of the working ring 1.
  • the design of the discharging trough 6 is designed to facilitate the discharge of materials along the discharging trough 6 upward.
  • the discharging opening 2 and the spare discharging opening 5 can be arranged outside the discharging trough 6 or in the discharging trough 6.
  • This embodiment mainly changes the structure of the discharge port 2, and the remaining parts are consistent with the first embodiment.
  • the two sides of the bottom of the discharge port 2 are respectively a first side 3 and a second side 4 in the direction of rotation of the working ring 1, and the first side 3
  • the center line of the angle formed with the second side 4 does not pass through the center of the bottom surface of the working ring 1.
  • one end of the first side 3 is at a corresponding position on the inner side wall of the working ring 1, and the other end thereof faces the outer side of the working ring 1 and is opposite to the direction of rotation of the working ring 1.
  • the direction yaw angle ⁇ is yaw angle ⁇ .
  • One end of the second side 4 is at a corresponding position on the inner side wall of the working ring 1, and the other end of the second side 4 is yaw angle ⁇ toward the outside of the working ring 1 and in the direction of rotation of the working ring 1, and ⁇ > ⁇ .
  • the first side 3 of the discharge opening 2 forms a radial mechanical thrust that pushes out the chips to the outside of the working ring 1 under the rotation of the working ring 1. Since the deflection angle ⁇ of the first side 3 toward the rear of the rotation direction of the working ring 1 is greater than the deflection angle ⁇ of the second side 4 toward the front of the rotation direction of the working ring 1, the second side 4 will not hinder the first side.
  • the chips pushed out by the side 3, as shown in FIG. 8, are smoothly discharged along the radial direction of the working ring 1 under the action of the mechanical thrust of the first side 3 as the working ring 1 rotates. If the above design is not done, that is, the first side 3 and the second side 4 of the discharge opening 2 will not be treated with swing angle. As shown in Figure 9, when the working ring 1 rotates, the second side 4 will hinder the first side. The scraps pushed out by one side 3 further reduce the discharge speed of the scraps.
  • the above-mentioned design of the first side 3 and the second side 4 makes the distance between the ends close to the inner side of the working ring 1 narrow, and the distance between the ends close to the outer side of the working ring 1 is wide, that is, the inner side of the working ring 1.
  • the working end (bottom surface) of the working ring 1 will form a corresponding taper.
  • the inner side of the working end of the working ring 1 will first contact the inner side of the glass surface, which can effectively prevent the glass from chipping.
  • This embodiment mainly changes the structure of the discharge port 2, and the remaining parts are consistent with the first embodiment.
  • the two sides of the discharge opening 2 are arranged in parallel, and the symmetrical center lines of the two sides of the bottom of the discharge opening do not pass through the center of the bottom surface of the working ring 1.
  • the two side surfaces of the discharge port 2 are arranged obliquely with respect to the bottom surface of the working ring 1 in the direction of rotation of the working ring 1, and one end of the two side surfaces of the discharge port 2 is at a corresponding position on the inner side wall of the working ring 1, and The other end thereof is swayed by a predetermined angle toward the outer side of the working ring 1 and in the direction of rotation of the working ring 1.
  • the top of the discharge opening 2 has a rounded structure, and the bottom and top of the spare discharge opening 5 are both rounded structures.
  • the rounded structure can prevent stress concentration and facilitate the flow of scraps.
  • the two side surfaces of the discharge opening 2 follow the rotation of the working ring 1, and one of the side surfaces will push up (axially upwards) and outward (outside the working ring 1).
  • the two sides are arranged in parallel, and the other side does not block one of the sides from pushing out the chips, that is, an axial mechanical thrust for discharging the chips is formed.
  • the scraps are smoothly discharged along the axial direction of the working ring 1 under the push of the two sides of the discharge port 2 (as shown by the dashed arrow in Fig. 13).
  • This embodiment mainly changes the position of the discharge port 2.
  • the structure of the discharge port 2 is consistent with the first embodiment, the second embodiment or the third embodiment, and the rest is consistent with the first embodiment.
  • a spare discharge port 5 is provided on the side wall of the working ring 1.
  • the spare discharge port 5 is located above the discharge port 2 and wears more than the axial wear of the working ring 1
  • the discharging port 2 is used for discharging material scraps.
  • Both the bottom and the top of the spare discharge port 5 are rounded structures, and the rounded structure prevents stress concentration and facilitates the flow and discharge of scraps.
  • a number of discharging grooves 6 are uniformly distributed on the outer side wall of the working ring 1, and the discharging grooves 6 are helical, and the spiral direction is consistent with the rotating direction of the working ring 1.
  • the design of the discharging trough 6 is designed to facilitate the upward discharge of material chips along the discharging trough 6.
  • the discharge port 2 and the spare discharge port 5 are located in the discharge groove 6. In this embodiment, the chips discharged from the discharge port 2 are discharged upward through the discharge groove 6 for the first time, which can accelerate the discharge speed of the chips.
  • the two sides of the discharge port 2 and the spare discharge port 5 are respectively a first side surface 9 and a second side surface 10 in the direction of rotation of the working ring 1
  • the discharge groove 6 has two sides at
  • the front and rear sides of the working ring 1 are respectively a third side surface 11 and a fourth side surface 12 in the direction of rotation, and the first side surface 9 overlaps the third side surface 11, and the second side surface 10 and the fourth side surface 12 are overlapped.
  • the first side surface 9 of the discharge port 2 By designing the first side surface 9 of the discharge port 2 to coincide with the third side surface 11 of the discharge trough 6, under the rotation of the working ring 1, the chips discharged from the discharge port 2 move backwards towards the first side of the discharge trough 6
  • the four side surfaces 12 move, and the second side surface 10 and the fourth side surface 12 of the discharge port 2 are spaced apart to form the largest discharge space for the chips, so that the chips can enter the discharge groove 6 faster and more, and improve the discharge efficiency .
  • the first side surface 9 of the backup discharge port 5 is designed to overlap with the third side surface 11 of the discharge trough 6, and the second side surface 10 and the fourth side surface 12 of the backup discharge port 5 are spaced apart to form the maximum cooling water discharge space.
  • Cooling water flowing out through the spare discharge port 5 (when the working ring 1 is worn and the spare discharge port 5 does not become the discharge port 2, the spare discharge port 5 flows out cooling water to the outside of the working ring 1 to assist the discharge), right
  • the discharging of the scraps in the discharging trough 6 has the best boosting effect and can also improve the discharging efficiency.
  • the discharge port 2/spare discharge port 5 is not overlapped with one side of the discharge trough 6, for example, the discharge port 2/spare discharge port 5 is set in the middle of the discharge trough 6 (the first side 9 and The second side surface 10 is not overlapped with the third side surface 11 and the fourth side surface 12), or the second side surface 10 and the fourth side surface 12 are overlapped, and the second side surface 10 of the discharge port 2/the spare discharge port 5 and the row
  • the waste material and cooling water discharge space formed between the fourth side surface 12 of the trough 6 is small, and the waste material cannot be discharged quickly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

一种高速高效钻头，包括工作环（1）和排料口（2），所述工作环为圆筒结构，所述排料口环设有多个，呈环形分布在所述工作环侧壁的底部以在所述工作环转动加工时排出料屑，所述排料口底部两侧边对称中心线或者所述排料口底部两侧边所成夹角的中心线不经过所述工作环底面的圆心。料屑在排料口内随着工作环的转动，其会受到排料口朝工作环外侧的机械推力，在该机械推力的作用下料屑更容易从排料口排出，保证钻头能高速高效工作。

Description

一种高速高效钻头 技术领域
本发明涉及加工工具领域，具体涉及一种高速高效钻头。
背景技术
现有的钻头如图1-3所示，包括工作环1和排料口2。工作环1固定在基体7的下端，其表面设有磨料层如金刚石颗粒，并且工作环1的壁厚大于基体7的壁厚。加工的过程中，冷却水从基体7内部通入后再经工作环1内壁与玻璃8之间(金刚石颗粒之间形成冷却水流动的间隙)向下流动，然后从工作环1下端朝外侧流出，最后再经工作环1外壁与玻璃8之间向上排出(如图3中的箭头所示)。在上述冷却水流动过程中，冷却水携带磨削产生的碎屑经排料口2后再通过排料槽6及工作环1外壁与玻璃8之间的间隙将碎屑甩出。排料口2用于工作环1转动加工时将料屑(冷却水和磨削碎屑的混合物)排出，以保证正常加工。
由于进水空间为工作环1上的金刚石颗粒与玻璃之间的空隙W，因为W狭小，要想及时将加工产生的料屑排出保证正常加工，一般通过增加进水量或者增加水压的方式来实现。增加进水量的方式会造成水资源的浪费，同时提高制造成本不利于环保，增加水压的方式在玻璃上孔被钻通的瞬间受水压的作用，很容易造成玻璃的崩边，尤其是在加工薄玻璃的时候更为突出。
现有的钻头的排料口2底部两侧边平行设置，并且排料口2底部两侧边的对称中心线经过工作环1底面的圆心。上述设置，在工作环1高速转动加工时，料屑在排料口2内随着工作环1同步转动，其不易在工作环1转动离心力的作用下排出到工作环1的外侧，进而导致钻头不能高速高效的工作。
发明内容
综上所述，为克服现有技术的不足，本发明所要解决的技术问题是提供一种高速高效钻头。
本发明解决上述技术问题的技术方案如下：一种高速高效钻头，包括工作环和排料口；所述工作环为圆筒结构，所述排料口设有多个，呈环形分布在所述工作环侧壁的底部以在所述工作环转动加工时排出料屑；所述排料口底部两侧边对称中心线或者所述排料口底部两侧边所成夹角的中心线不经过所述工作环底面的圆心。
本发明的有益效果是：料屑在排料口内随着工作环的转动，其会受到排料口朝工作环外侧的机械推力，在该机械推力的作用下料屑更容易从排料口排出，保证钻头能高速高效工作。
在上述技术方案的基础上，本发明还可以做如下改进：
进一步，所述排料口底部两侧边平行设置，其对称中心线不经过所述工作环底面的圆心，并且所述排料口底部两侧边相对所述工作环底面的圆心呈螺旋布置，且螺旋方向与所述工作环转动的方向一致。
采用上述进一步方案的有益效果是：料屑在工作环转动离心力的作用下能顺着排料口向外排出，提高料屑排出速度。
进一步，所述排料口底部两侧边在所述工作环转动方向上前后分别为第一侧边和第二侧边，并且所述第一侧边和所述第二侧边所成夹角的中心线不经过所述工作环底面的圆心；所述第一侧边的一端处于所述工作环内侧壁相应的位置，其另一端朝所述工作环的外侧且向所述工作环转动方向的相反的方向偏摆角度α；所述第二侧边的一端处于所述工作环内侧壁相应的位置，其另一端朝所述工作环的外侧且向所述工作环转动方向偏摆角度θ，并且α ＞θ。
采用上述进一步方案的有益效果是：在工作环转动时，排料口的第二侧边不会阻碍第一侧边向外推出的料屑，在工作环径向上提高料屑排出速度。
进一步，所述排料口两侧面平行设置，其底部两侧边的对称中心线不经过所述工作环底面的圆心；所述排料口两侧面相对所述工作环的底面向所述工作环转动方向倾斜设置，并且所述排料口两侧面的一端处于所述工作环内侧壁相应的位置，其另一端朝所述工作环的外侧且向所述工作环转动方向偏摆预设的角度。
采用上述进一步方案的有益效果是：在工作环转动时，排料口两侧面的其中一侧对料屑形成向上朝外的推力，在工作环轴向上提高料屑排出速度。
进一步，所述工作环侧壁上设有与所述排料口相对应的备用排料口，所述备用排料口处于所述排料口上方且在所述工作环轴向磨损超过所述排料口后用于排出料屑。
采用上述进一步方案的有益效果是：保证工作环轴向磨损后也能正常加工。
进一步，所述排料口顶部为圆角结构，所述备用排料口底部和顶部均为圆角结构。
采用上述进一步方案的有益效果是：防止应力集中，并且有利于冷却水及料屑的流动。
进一步，所述工作环外侧壁上沿周向均匀的设有多个排料槽，所述排料槽的下端延伸至所述工作环的底部，其上端斜向上延伸。
进一步，所述排料槽为螺旋状，且螺旋方向与所述工作环转动的方向一致。
采用上述进一步方案的有益效果是：便于料屑沿着排料槽向上排出。
进一步，所述排料口和所述备用排料口处于所述排料槽内相应的位置 处。
采用上述进一步方案的有益效果是：排料口排出的料屑第一时间经排料槽向上排出。
进一步，所述排料口和所述备用排料口两侧面在所述工作环转动方向上前后分别为第一侧面和第二侧面，所述排料槽两侧面在所述工作环转动方向上前后分别为第三侧面和第四侧面，并且所述第一侧面与所述第三侧面重合，所述第二侧面与所述第四侧面间隔设置。
采用上述进一步方案的有益效果是：经备用排料口流出的冷却水，对排料槽内的料屑排出，具有最佳的助推作用，提高排料效率。
附图说明
图1为现有钻头的三维图；
图2为现有钻头的仰视图；
图3为钻头加工玻璃时水流示意图；
图4为本发明实施例一的三维图；
图5为本发明实施例一的仰视图；
图6为本发明实施例二的三维图；
图7为本发明实施例二的仰视图；
图8为本发明实施例二的料屑径向排出示意图；
图9为现有钻头料屑径向排出示意图；
图10为本发明实施例三的三维图；
图11为本发明实施例三的主视图；
图12为本发明实施例三的仰视图；
图13为图12的A-A剖视图；
图14为本发明实施例四的三维图；
图15为本发明实施例四的正视图；
图16为本发明实施例二工作环使用一段时间后底部的放大图；
图17为角α与角θ的示意图；
其中，点划线表示排料口底部两侧边对称中心线或者排料口底部两侧边所成夹角的中心线，实线箭头方向表示工作环的转动方向，虚线箭头表示料屑排出方向。
附图中，各标号所代表的部件列表如下：
1、工作环，2、排料口，3、第一侧边，4、第二侧边，5、备用排料口，6、排料槽，7、基体,8、玻璃，9、第一侧面，10、第二侧面，11、第三侧面，12、第四侧面。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
实施例一
如图4和5所示，一种高速高效钻头，包括工作环1和排料口2。所述工作环1为圆筒结构，所述排料口2设有多个，呈环形分布在所述工作环1侧壁的底部以在所述工作环1转动加工时排出料屑。所述排料口2底部两侧边平行设置，其对称中心线不经过所述工作环1底面的圆心，并且所述排料口2底部两侧边相对所述工作环1底面的圆心呈螺旋布置，且螺旋方向与所述工作环1转动的方向一致。在该实施例中，料屑在工作环1转动离心力的作用下能顺着排料口1向外排出，提高了料屑排出的速度，保证在钻头在高速转动下高效工作。
所述工作环1侧壁上设有与所述排料口2相对应的备用排料口5，所述备用排料口5处于所述排料口2上方且在所述工作环1轴向磨损超过所述排 料口2后用于排出料屑。工作环1随着不断加工轴向上会不断磨损，当磨损到一定程度后即超过排料口2后，第二层的备用排料口5就会变成新的排料口2，新的排料口2与最开始的排料口2的结构一样。依次类推，上层的备用排料口5不断被形成新的排料口2，直到工作环1磨损到不能工作为止。所述工作环1外侧壁上沿周向均匀的设有多个排料槽6，所述排料槽6的下端延伸至所述工作环1的底部，其上端斜向上延伸，所述排料槽6为螺旋状，且螺旋方向与所述工作环1转动的方向一致。排料槽6的设计，其作用在于便于料屑沿着排料槽6向上排出，排料口2和备用排料口5可以设置在排料槽6之外或者排料槽6内。
实施例二
该实施例主要改变排料口2的结构，其余部分与实施例一一致。
如图6和7所示，所述排料口2底部两侧边在所述工作环1转动方向上前后分别为第一侧边3和第二侧边4，并且所述第一侧边3和所述第二侧边4所成夹角的中心线不经过所述工作环1底面的圆心。如图17所示，所述第一侧边3的一端处于所述工作环1内侧壁相应的位置，其另一端朝所述工作环1的外侧且向所述工作环1转动方向的相反的方向偏摆角度α。所述第二侧边4的一端处于所述工作环1内侧壁相应的位置，其另一端朝所述工作环1的外侧且向所述工作环1转动方向偏摆角度θ，并且α＞θ。在该实施例中，在工作环1转动时，排料口2的第一侧边3在工作环1的转动下形成向工作环1的外侧推出料屑的径向机械推力。由于第一侧边3向工作环1转动方向的后方偏摆角度α大于第二侧边4向工作环1转动方向的前方偏摆角度θ，因此，第二侧边4不会阻碍第一侧边3向外推出的料屑，如图8所示，料屑随着工作环1的转动在第一侧边3的机械推力的作用下沿着工作环1径向上顺利排出。如不做上述设计，即排料口2的第一侧边3和第二侧边4不 做摆角处理，如图9所示，在工作环1转动下，第二侧边4会阻碍第一侧边3向外推出的料屑，进而降低料屑的排出速度。
另外，第一侧边3和第二侧边4的上述设计使得两者靠近工作环1内侧的端部之间距离窄，靠近工作环1外侧的端部之间距离宽，即工作环1内侧加工材料(金刚石)会多，外侧加工材料会少，进而工作环1内侧磨损速度要比外侧的磨损速度慢。因此，在工作一定时间后，如图16所示，工作环1的工作端(底面)会形成相应的锥度。在加工某些材料如玻璃的时候，工作环1的工作端的内侧会先接触玻璃的表面内侧，可有效防止玻璃崩边。
实施例三
该实施例主要改变排料口2的结构，其余部分与实施例一一致。
如图10-13所示，所述排料口2两侧面平行设置，其底部两侧边的对称中心线不经过所述工作环1底面的圆心。所述排料口2两侧面相对所述工作环1的底面向所述工作环1转动方向倾斜设置，并且所述排料口2两侧面的一端处于所述工作环1内侧壁相应的位置，其另一端朝所述工作环1的外侧且向所述工作环1转动方向偏摆预设的角度。所述排料口2顶部为圆角结构，所述备用排料口5底部和顶部均为圆角结构。圆角结构可以防止应力集中，并且有利于料屑的流动。在该实施例中，在工作环1转动时，排料口2的两侧面随着工作环1的转动，其中一个侧面会向上(轴向向上)朝外(工作环1外侧)推出料屑，两侧面平行设置，另外一个侧面不会阻挡其中一个侧面推出料屑，即形成将料屑排出的轴向机械推力。料屑随着工作环1的转动，其在排料口2两侧面的推动下沿着工作环1轴向顺利排出(如图13中虚线箭头所示)。
实施例四
该实施例主要改变排料口2的位置，排料口2的结构与实施例一、实施 例二或实施例三一致，其余部分与实施例一一致。
如图14和15所示，所述工作环1侧壁上设有备用排料口5，所述备用排料口5处于所述排料口2上方且在所述工作环1轴向磨损超过所述排料口2后用于排出料屑。所述备用排料口5底部和顶部均为圆角结构，圆角结构防止应力集中，并且有利于料屑的流动排出。所述工作环1外侧壁上均匀环布有若干排料槽6，所述排料槽6为螺旋状，且螺旋方向与所述工作环1转动的方向一致。排料槽6的设计，其作用在于便于料屑沿着排料槽6向上排出。所述排料口2和所述备用排料口5处于所述排料槽6内。在该实施例中，排料口2排出的料屑第一时间经排料槽6向上排出，可以加快料屑排出速度。
优选的:所述排料口2和所述备用排料口5两侧面在所述工作环1转动方向上前后分别为第一侧面9和第二侧面10，所述排料槽6两侧面在所述工作环1转动方向上前后分别为第三侧面11和第四侧面12，并且所述第一侧面9与所述第三侧面11重合，所述第二侧面10与所述第四侧面12间隔设置。通过将排料口2的第一侧面9与排料槽6的第三侧面11重合设计，在工作环1的转动下，排料口2排出的料屑向后即朝排料槽6的第四侧面12运动，而排料口2的第二侧面10与第四侧面12间隔设置形成料屑的最大排出空间，使得料屑更快更多的进入到排料槽6内，提高排料效率。将备用排料口5的第一侧面9与排料槽6的第三侧面11重合设计，备用排料口5的第二侧面10与第四侧面12间隔设置同样形成冷却水的最大排出空间，经备用排料口5流出的冷却水(工作环1磨损在备用排料口5未变成排料口2时，备用排料口5向工作环1外侧流出冷却水以辅助排料)，对排料槽6内的料屑排出，具有最佳的助推作用，同样可以提高排料效率。若不将排料口2/备用排料口5与排料槽6的一侧重合，如将排料口2/备用排料口5设置在排料槽6内的中部(第一侧面9和第二侧面10与第三侧面11和第四侧面12均不重合)，或者将第二侧面10与第四侧面12重合设置，排料口2/备用排 料口5的第二侧面10与排料槽6的第四侧面12之间形成的料屑、冷却水排出空间较小，不能快速排出料屑。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种高速高效钻头，包括工作环(1)和排料口(2)；所述工作环(1)为圆筒结构，所述排料口(2)设有多个，呈环形分布的设置在所述工作环(1)侧壁的底部以在所述工作环(1)转动加工时排出料屑；其特征在于，所述排料口(2)底部两侧边对称中心线或者所述排料口(2)底部两侧边所成夹角的中心线不经过所述工作环(1)底面的圆心。
  2. 根据权利要求1所述的高速高效钻头，其特征在于，所述排料口(2)底部两侧边平行设置，其对称中心线不经过所述工作环(1)底面的圆心，并且所述排料口(2)底部两侧边相对所述工作环(1)底面的圆心呈螺旋布置，且螺旋方向与所述工作环(1)转动的方向一致。
  3. 根据权利要求1所述的高速高效钻头，其特征在于，所述排料口(2)底部两侧边在所述工作环(1)转动方向上前后分别为第一侧边(3)和第二侧边(4)，并且所述第一侧边(3)和所述第二侧边(4)所成夹角的中心线不经过所述工作环(1)底面的圆心；所述第一侧边(3)的一端处于所述工作环(1)内侧壁相应的位置，其另一端朝所述工作环(1)的外侧且向所述工作环(1)转动方向的相反的方向偏摆角度α；所述第二侧边(4)的一端处于所述工作环(1)内侧壁相应的位置，其另一端朝所述工作环(1)的外侧且向所述工作环(1)转动方向偏摆角度θ，并且α＞θ。
  4. 根据权利要求1所述的种高速高效钻头，其特征在于，所述排料口(2)两侧面平行设置，其底部两侧边的对称中心线不经过所述工作环(1)底面的圆心；所述排料口(2)两侧面相对所述工作环(1)的底面向所述工作环(1)转动方向倾斜设置，并且所述排料口(2)两侧面的一端处于所述工作环(1)内侧壁相应的位置，其另一端朝所述工作环(1)的外侧且向所述工作环(1)转动方向偏摆预设的角度。
  5. 根据权利要求1所述的种高速高效钻头，其特征在于，所述工作环(1)侧壁上设有与所述排料口(2)相对应的备用排料口(5)，所述备用排料口(5)处于所述排料口(2)上方且在所述工作环(1)轴向磨损超过所述排料口(2)后用于排出料屑。
  6. 根据权利要求5所述的种高速高效钻头，其特征在于，所述排料口(2)顶部为圆角结构，所述备用排料口(5)底部和顶部均为圆角结构。
  7. 根据权利要求6所述的种高速高效钻头，其特征在于，所述工作环(1)外侧壁上沿周向均匀的设有多个排料槽(6)，所述排料槽(6)的下端延伸至所述工作环(1)的底部，其上端斜向上延伸。
  8. 根据权利要求7所述的种高速高效钻头，其特征在于，所述排料槽(6)为螺旋状，且螺旋方向与所述工作环(1)转动的方向一致。
  9. 根据权利要求7所述的种高速高效钻头，其特征在于，所述排料口(2)和所述备用排料口(5)处于所述排料槽(6)内相应的位置处。
  10. 根据权利要求7所述的种高速高效钻头，其特征在于，所述排料口(2)和所述备用排料口(5)两侧面在所述工作环(1)转动方向上前后分别为第一侧面(9)和第二侧面(10)，所述排料槽(6)两侧面在所述工作环(1)转动方向上前后分别为第三侧面(11)和第四侧面(12)，并且所述第一侧面(9)与所述第三侧面(11)重合，所述第二侧面(10)与所述第四侧面(12)间隔设置。
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