Dual-head grinding drill machine and grinding method

Abstract

A dual-head grinding drill machine and a grinding method that include two grinding bases on both ends of a motive power source and each having a grinding wheel. A fixing device separately aligns a left or a right drill or a mill, such that the knives into blade directions can perform a grinding operation on the same grinding machine. A pneumatic motor is installed to match with a sucking passage for discharging drill bits from the positions of two grinding wheels, so as to achieve an extensive applicability and an environmental protection effect. The multi-axis deflective and bias design of the grinding base provides a diversified grinding design for grinding a blade stationary point for different requirements and a blade belly with a different curvature.

1 . A dual-head grinding drill machine and a grinding method, comprising: 
 a motive power source, installed on a base;    two grinding wheels, installed at both ends of a motive power axle that are extended from both ends of said motive power source;    a hood, pivotally coupled to both sides of said base;    at least one group of a first grinding base and a second grinding base disposed on both ends of said grinding base and corresponding to said grinding wheel;    a clamping tool, for clamping a ground object and corresponding to the operations of said first grinding base and said second grinding base; and    at least one fixing device installed at a front distal surface of said base.    
   
   
       2 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said first grinding base includes a base member, a sliding groove disposed at the bottom of said base member, a pivot portion formed on another end of the bottom of said base member for passing and fixing a pivot onto said base, such that said base member uses said pivot as the center of a deflection, and a perpendicular wall of said base member is pivotally coupled to a bias rotary base, and a perpendicular surface of said rotary base includes a fixing pillar latched with said clamping tool, and said rotary base includes a limit portion disposed on a perpendicular wall of said base member, and said base member includes a corresponding limit pillar.  
   
   
       3 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said rotary base of said base member of said first grinding base has a bias center and a bias axle in the form of a multi-axial mode with said bias rotary base pivotally coupled to a perpendicular wall of said base member, such that the perpendicular wall of said base member includes a rotary base installing portion, and said rotary base includes a tool installing portion disposed at a position of said clamping tool, and a point of said ground object axle center at the center of said clamping tool in contact with the surface of said grinding wheel is a cutting center C, and said cutting center C is projected onto a projected point of a horizontal axial point C′ on a perpendicular surface of said base member, and the center of said tool installing portion shifts from said horizontal axial point C′ downward to said bias axial point A, such that when said base member rotates on said rotary base to drive said clamping tool and said ground object, the tip of said ground object axle center is fixed motionless at said cutting center C, and the tip and peripheral surface of said ground object go around said horizontal axial point C′ along said bias axial point A for approximately 90 degrees to a grinding shift position for producing a cutting and a grinding effects, and said rotary base installing portion of said base member includes a horizontal offset axial point A′ in the form of a slanting hole, such that said first shifting axle CA′ of said base member of said rotary base aligns at a shifting angle from −10 to 10 degrees with respect to a reference axis CC′, and said second shifting axle CA of said tool installing portion of said rotary base aligns at a shifting angle from 0 to −5 degrees with respect to said reference axis CC′, such that when said rotary base rotates on said base member in a grinding process, said clamping tool and said ground object shift by using said reference axis CC′ as a center according to a predetermined offset of said first shifting axle CA′ and said second shifting axle CA predetermined offset, so that the periphery at the tip of said ground object form different curvature and cambered surface by two different shifting axles moving at the same time.  
   
   
       4 . The dual-head grinding drill machine and grinding method of claims  1  or  3 , wherein said ground object includes a stationary point at the tip of the center of said ground object, and said stationary point forms two straight blade edges according to the required quantity of said blade edges, and a curved blade belly extended from said blade edge towards a left or a right rotary knife forms a bevel with a slanting angle disposed at an end of said blade belly, and a bits removing tank is disposed behind said bevel, and said bevel forms a slanting stationary point slot disposed at a position of said bevel being extended to said stationary point, and said first grinding base grinds said blade edge and said blade belly, and said second grinding base grinds said bevel and said stationary point slot, such that when two shifting axles are used for grinding, a curve BA of said first bell cut by said second shifting axle CA is compared with a curve A′B′ of said second belly ground by said two shifting axles, and thus the process of rotating said ground object becomes fasters in a non-proportional way and maintains motionless at said ground object stationary point and said cutting center C, and only the portion of said blade belly is cut, and if said first shifting axle CA′ shifts within an angle from 0 to 10 degrees with respect to said reference axis CC′, then said blade belly is driven to move quickly towards the surface of said grinding wheel for a deeper grinding to form a larger slanting curvature of said blade belly, such that when said ground object mills the surface of said work piece, the hardness of said blade will be lower to cope with the process of grinding a softer work piece.  
   
   
       5 . The dual-head grinding drill machine and grinding method of  claim 4 , wherein if said first shifting axle CA′ is aligned at a negative angle with said reference axis CC′, the grinding of said blade belly is reduced and the slope and curvature of said blade belly becomes flat, and the strength of said blade becomes stronger when said ground object and said work piece is drilled to fit the process of grinding the surface of a harder work piece.  
   
   
       6 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said pivot portion at the bottom of said base member is provided for passing said pivot through and fixed to a pivoting point according to a deviated angle at a deviating axial point A′ for a deviated displacement and deviating said pivot to said pivoting point, and said rotary base installing portion of said base member is maintained perpendicular to a vertical portion of said base member.  
   
   
       7 . The dual-head grinding drill machine and grinding method of  claim 1 , further comprising a deviating member disposed between said base member and said rotary base or between said rotary base and said clamping tool.  
   
   
       8 . The dual-head grinding drill machine and grinding method of  claim 7 , wherein said deviating member is installed between said clamping tool and said rotary base, and said deviating member includes a receiving portion for placing said clamping tool, and a sheathing portion having a flange of a larger diameter at one end and another end with a smaller diameter, and the hole position of said sheathing portion and the center of said rotary base are concentric, and said receiving portion is installed as a slanting hole according to the slope difference at a shifting axle point A′ to change the position of a center for passing another ground object.  
   
   
       9 . The dual-head grinding drill machine and grinding method of  claim 8 , wherein said receiving portion of said deviating member can be installed at the bias position of said sheathing portion according to the lengths of said blades for performing a grinding process for the blades with different lengths on both sides.  
   
   
       10 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said second grinding base is fixed onto said base member of said base, and an end of said base member is pivotally coupled to said base by a pivot, and another end of said base member includes a corresponding fixing bolt and a central axle of a cam control button passes through said base, and said fixing bolt is secured onto said base member, and a central axle of said control button controls a propping member.  
   
   
       11 . The dual-head grinding drill machine and grinding method of  claim 10 , wherein said central axle of said control button is a cam structure to cope with the control of a propping member.  
   
   
       12 . The dual-head grinding drill machine and grinding method of  claim 10 , wherein said base corresponding to said second grinding base includes a support member disposed perpendicular to the bottom of said base.  
   
   
       13 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said clamping tool includes a clamping member and a compressing member screwed onto said clamping member, and said clamping member includes an elastic cylindrical structure therein, and the exterior of said clamping member is screwed with said compressing member, and a plug-unplug structure is provided such that when said compressing member is screwed onto said clamping member, a clamping action is produced for clamping said ground member in said ground object.  
   
   
       14 . The dual-head grinding drill machine and grinding method of  claim 13 , wherein said clamping member includes a sheathing portion with a small diameter formed at an end and corresponding to said first and second grinding bases, and an end of said sheathing portion with a large diameter forms a limit portion.  
   
   
       15 . The dual-head grinding drill machine and grinding method of  claim 14 , wherein said limit portion comes with a quantity according to the quantity of blades of said ground object such as a drill.  
   
   
       16 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said fixing device comprises a flat base member, a receiving portion disposed at an end of said base member, and a limit pillar disposed at an external edge of said receiving portion, and said base member comprises a cylindrical seat disposed at another end of said base member for receiving a resilient member, a fixing base disposed proximate to the top of said seat, and a limit portion disposed at the bottom of said fixing base and corresponding to said seat, and a fixing member being passed through the center of an axle and secured into the bottom of a hollow interior of said seat, and a fixing portion formed at a cut position corresponding to the periphery of said fixing base and the tip of said ground object.  
   
   
       17 . The dual-head grinding drill machine and grinding method of  claim 16 , wherein said fixing portion of said fixing base forms a plurality of surfaces with different slopes to cope with the structure.  
   
   
       18 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said space at the bottom of said base has a larger area for installing an object containing rack in the form of an object containing member having a large drawer.  
   
   
       19 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said motive power source is a motor, and said motor is a wind power motor having an end as an air incoming end and the other end as an air outgoing end.  
   
   
       20 . The dual-head grinding drill machine and grinding method of  claim 19 , wherein said base includes a sucking passage extended from said wind power motor and an opening of said sucking passage is disposed separately at said two grinding wheels.  
   
   
       21 . The dual-head grinding drill machine and grinding method of  claim 1 , wherein said rear grinding surface of said grinding wheel constitutes an inwardly tilted acute angle and substantially maintain an angle from 0 degree to 5 degrees with a horizontal line.