CN115302320A - Drill bit machining device and machining process - Google Patents

Drill bit machining device and machining process Download PDF

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Publication number
CN115302320A
CN115302320A CN202211248032.4A CN202211248032A CN115302320A CN 115302320 A CN115302320 A CN 115302320A CN 202211248032 A CN202211248032 A CN 202211248032A CN 115302320 A CN115302320 A CN 115302320A
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CN
China
Prior art keywords
drill bit
grinding wheel
drill
bit clamping
clamped
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Granted
Application number
CN202211248032.4A
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Chinese (zh)
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CN115302320B (en
Inventor
朱聚华
朱国强
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Danyang Juli Cnc Machinery Co ltd
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Danyang Juli Cnc Machinery Co ltd
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Priority to CN202211248032.4A priority Critical patent/CN115302320B/en
Publication of CN115302320A publication Critical patent/CN115302320A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/247—Supports for drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a drill bit machining device and a machining process, and belongs to the technical field of drill bit machining: the drill bit processing device comprises a turntable, and a slotting grinding wheel, an edge cleaning grinding wheel and an opening relief angle grinding wheel which are sequentially arranged on the turntable in an annular and equidistant manner, wherein the turntable is also provided with a feeding device corresponding to the opening relief angle grinding wheel; three drill bit clamping components which sequentially correspond to the slotting grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel are arranged on the outer side of the turntable; the turntable can drive the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel to synchronously rotate, and the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel simultaneously process the drill bits clamped in the three drill bit clamping assemblies. The three drill clamping components are clamped by the invention and are sequentially processed by a grooving grinding wheel, an edge cleaning grinding wheel and an opening rear angle grinding wheel, and the three processing processes are synchronously carried out. By adopting the processing mode of the invention, the drill bit is clamped once in each processing process, and the processing efficiency can be ensured while the processing efficiency is improved.

Description

Drill bit machining device and machining process
Technical Field
The invention relates to the technical field of drill bit machining equipment, in particular to a drill bit machining device and a drill bit machining process.
Background
The processing technology of the drill bit sequentially comprises three processing steps of slotting (spiral groove), edge cleaning, opening (end cutting edge) and double-relief angle grinding, and particularly can refer to fig. 1, wherein a state a to a state b in fig. 1 represent slotting, a state b to a state c represent edge cleaning, and a state c to a state d represent opening and double-relief angle grinding.
Considering that the processing time of the three process steps is not greatly different and is continuously carried out, the three process steps are integrated into a comprehensive device to carry out the whole-process processing on the drill bit, and the method has important significance for improving the processing efficiency of the drill bit.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a drill bit machining device and a machining process, and solves the technical problems that in the prior art, a drill bit is low in machining speed and needs to be clamped for multiple times.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a drill machining device: the automatic edge cleaning device comprises a turntable, and a grooving grinding wheel, an edge cleaning grinding wheel and an opening rear angle grinding wheel which are sequentially arranged on the turntable in an annular and equidistant manner, wherein the turntable is also provided with a feeding device corresponding to the opening rear angle grinding wheel;
three drill bit clamping components which sequentially correspond to the slotting grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel are arranged on the outer side of the rotary table;
the turntable can drive the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel to synchronously rotate, and the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel simultaneously process the drill bits clamped in the three drill bit clamping assemblies.
Preferably, the drill machining device of the foregoing aspect: the drill bit clamping assembly is used for clamping a drill handle of a drill bit in a machining state and rotating, and can also drive the drill bit to stretch relative to the axis of the rotary table in the clamping machining state.
Preferably, the drill machining device of the foregoing aspect: the three drill bit clamping components are a drill bit clamping component I, a drill bit clamping component II and a drill bit clamping component III in sequence;
when the drill bit clamped by the first drill bit clamping assembly is in a grooving state, the drill bit clamped by the second drill bit clamping assembly and the drill bit clamped by the third drill bit clamping assembly are respectively in an edge cleaning state and an opening back angle processing state;
when the drill bit clamped by the first drill bit clamping assembly is in an edge cleaning processing state, the drill bit clamped by the second drill bit clamping assembly and the drill bit clamped by the third drill bit clamping assembly are in an opening rear angle processing state and a slotting processing state respectively;
when the drill bit clamped by the first drill bit clamping assembly is in the opening rear angle processing state, the drill bit clamped by the second drill bit clamping assembly and the drill bit clamped by the third drill bit clamping assembly are in the grooving processing state and the edge cleaning processing state respectively.
Preferably, the drill machining device of the foregoing aspect: the opening back angle grinding wheel feeding assembly comprises an X-direction feeding mechanism, a Z-direction feeding mechanism connected to a feeding output end of the X-direction feeding mechanism and a feeding mechanism connected to a feeding output end of the Z-direction feeding mechanism, wherein a feeding axis of the feeding mechanism is positioned in a Z-direction plane and a Y-direction plane, the feeding axis of the feeding mechanism is positioned between the Z-direction plane and the Y-direction plane, and the opening back angle grinding wheel is connected to the feeding output end of the feeding mechanism;
wherein, Y is the radial direction that the carousel corresponds with corresponding drill bit centre gripping subassembly, and Z is the direction that is perpendicular to carousel rotation plane place, and X is the tangential direction that the carousel corresponds with corresponding drill bit centre gripping subassembly.
Preferably, the drill machining device of the foregoing aspect: the plane of the opening rear angle grinding wheel is parallel to the plane of the direction and the X direction, and the angle between the direction and the Z direction can be adjusted.
Preferably, the drill machining device of the foregoing aspect: the feeding output end of the Z-direction feeding mechanism is provided with a bottom plate, a certain rotation center parallel to the X direction is arranged between the feeding mechanism and the bottom plate, the bottom plate is provided with an arc groove corresponding to the rotation center, and the arc groove is connected to the feeding mechanism through a locking bolt.
Preferably, the drill machining device of the foregoing aspect: the drill bit clamping assembly comprises a Y-direction feeding mechanism and a bracket arranged at the feeding output end of the Y-direction feeding mechanism, a discharging shaft arranged in the Y direction is arranged in the bracket, a chuck used for clamping a drill bit is arranged at the turntable end of the discharging shaft, the discharging shaft is driven by a motor to rotate by taking the Y shaft as the axis,
wherein, Y is the radial direction that the carousel corresponds with corresponding drill bit centre gripping subassembly, and Z is the direction that is perpendicular to carousel rotation plane place, and X is the tangential direction that the carousel corresponds with corresponding drill bit centre gripping subassembly.
Preferably, the drill machining device of the foregoing aspect: the turntable is provided with three workpiece brackets which are sequentially corresponding to the slotting grinding wheel, the edge cleaning grinding wheel and the opening rear angle grinding wheel, and the workpiece brackets are detachably connected with the turntable.
The machining process adopting the drill bit machining device comprises the following steps: comprises the following steps:
the slotting grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel sequentially and synchronously process the drill bits clamped on the first drill bit clamping component, the second drill bit clamping component and the third drill bit clamping component, and after the opening relief angle grinding wheel finishes processing the drill bits clamped on the third drill bit clamping component, the feeding device conveys the blank to the third drill bit clamping component and pushes the processed drill bits on the third drill bit clamping component towards the discharging direction;
the turntable rotates by one station, so that the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel simultaneously and respectively machine drills clamped on the drill bit clamping assembly III, the drill bit clamping assembly I and the drill bit clamping assembly II, and after the opening relief angle grinding wheel finishes machining the drill bit clamped on the drill bit clamping assembly II, the feeding device conveys the blank to the drill bit clamping assembly II and pushes the machined drill bit on the drill bit clamping assembly II to the discharging direction;
the turntable continuously rotates for one station, so that the grooving grinding wheel, the edge cleaning grinding wheel and the opening relief angle grinding wheel simultaneously and respectively machine drills clamped on the drill bit clamping component II, the drill bit clamping component III and the drill bit clamping component I, after the drill bit clamped on the drill bit clamping component I is machined by the opening relief angle grinding wheel, the feeding device conveys the blank to the drill bit clamping component I, and the drill bit machined on the drill bit clamping component I is pushed towards the discharging direction.
Preferably, the machining process of the drill machining device includes: when the rotary table rotates, the drill bit clamping assembly moves towards the direction far away from the rotary table.
The invention achieves the following beneficial effects:
compared with the prior art, the three drill clamping assemblies are clamped by the three drill clamping assemblies and are sequentially processed by the grooving grinding wheel, the edge cleaning grinding wheel and the opening rear angle grinding wheel, and the three processing processes are synchronously performed, so that the processing efficiency is improved, and the continuity of drill processing is ensured. Meanwhile, a plurality of devices in the prior art are integrated into one device, so that the cost of the device and the occupied area of a factory building are reduced, and the economic value is better.
By adopting the processing mode, the drill bit is clamped once in each processing process, so that the processing efficiency is improved, the processing efficiency can be ensured, and the product quality can be ensured.
Drawings
FIG. 1 is a diagram of a prior art drill bit process;
FIG. 2 is a first perspective view of the drill bit machining apparatus of the present invention;
FIG. 3 is a perspective view of a second drill bit machining apparatus of the present invention;
FIG. 4 is a block diagram of a bit holder assembly of the present invention;
FIG. 5 is a block diagram of the opening relief grinding wheel feed assembly of the present invention;
FIG. 6 is a first state of the process of the present invention;
FIG. 7 is a second state of the process of the present invention;
FIG. 8 is a third state of the invention;
FIG. 9 is a schematic view of the double clearance machining of a prior art drill bit;
the meaning of the reference numerals: 1-slotting grinding wheel; 2-edge cleaning grinding wheel; 3-opening a relief angle grinding wheel; 4-a bit gripping assembly; 5-opening back angle grinding wheel feeding assembly; 6-a feeding device; 7-a turntable; a 41-Y direction feeding mechanism; 42-a scaffold; 43-a discharge shaft; 44-a chuck; 45-motor; a 51-X direction feeding mechanism; a 52-Z direction feeding mechanism; a 53-A direction feeding mechanism; 521-a bottom plate; 522-arc groove; 71-a workpiece carrier; 4A-a first bit clamping assembly; 4B-a second drill bit clamping assembly; 4C-bit holder assembly three.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 2 to 8: the embodiment discloses a drill bit processing device: the drill bit clamping device comprises a rotary table 7, and a slotting grinding wheel 1, an edge cleaning grinding wheel 2 and an opening rear angle grinding wheel 3 which are sequentially and annularly arranged on the rotary table 7 at equal intervals, wherein the rotary table 7 is also provided with a feeding device 6 corresponding to the opening rear angle grinding wheel 3, and three drill bit clamping components 4 corresponding to the slotting grinding wheel 1, the edge cleaning grinding wheel 2 and the opening rear angle grinding wheel 3 in sequence are arranged on the outer side of the rotary table 7; the correspondence described here means that the blank conveyed by the feeding device 6 can normally enter the working range of the opening and clearance grinding wheel 3, and can be held by the drill holding assembly 4 corresponding to the opening and clearance grinding wheel 3. The feeding device 6 can adopt a bar feeding mechanism in the prior art, and the details of the embodiment are not repeated.
The carousel 7 of this embodiment can drive fluting emery wheel 1, edging emery wheel 2, opening relief angle emery wheel 3 synchronous revolution to make fluting emery wheel 1, edging emery wheel 2, opening relief angle emery wheel 3 process the drill bit of centre gripping in three drill bit centre gripping subassembly 4 simultaneously, above-mentioned description can be understood: the rotary table 7 is rotatable, but has three working angles, and the three bit-holding assemblies 4 correspond to the three working angles of the rotary table 7, which can be understood as follows: when the rotary table 7 is at any one of the three working angles, the slotting grinding wheel 1, the edge cleaning grinding wheel 2 and the opening rear angle grinding wheel 3 can process the drill clamped by the three drill clamping components 4.
As shown in fig. 4: the drill bit clamping assembly 4 is used for clamping a drill shank of a drill bit in a machining state and rotating, and can also drive the drill bit to stretch relative to the axis of the rotary table 7 in the machining state. The drill bit clamping assembly 4 comprises a Y-direction feeding mechanism 41 and a support 42 arranged at the feeding output end of the Y-direction feeding mechanism 41, a discharging shaft 43 arranged in the Y direction is arranged in the support 42, a chuck 44 used for clamping a drill bit is arranged at the turntable end of the discharging shaft 43, the discharging shaft 43 is driven by a motor 45 to rotate by taking the Y shaft as an axis, the discharging shaft 43 is of a hollow structure, the drill bit clamped on the chuck 44 is pushed to the inside of the discharging shaft 43 through the pushing of the next drill bit to be machined after being machined, and then the machined drill bit is sequentially discharged through the outside of the discharging shaft 43 along with the machining process.
Wherein, the Y direction is a radial direction of the rotary table 7 corresponding to the corresponding drill clamping assembly 4, the Z direction is a direction perpendicular to a rotation plane of the rotary table 7, and the X direction is a tangential direction of the rotary table 7 corresponding to the corresponding drill clamping assembly 4, since the rotary table 7 is rotatable, the Y direction in this embodiment is not fixed, and can be understood as a connecting line between a circle center position of the rotary table 7 and the corresponding drill clamping assembly 4. While the Z direction is fixed, typically vertical. The X direction and the Y direction are the same and are not fixed, specifically refer to X1, X2, X3 and Y1, Y2, Y3 in the drawings, it should be noted that the positive direction of the Y direction is toward the center of the circle of the turntable 7, and the positive directions of all the X directions are uniform. The directions X, Y and Z in the present embodiment are only for convenience of description, and the protection scope of the present application is not limited thereby. The freedom of movement of the grooving grinding wheel 1 and the edge cleaning grinding wheel 2 is not limited in this embodiment, and the machining requirements of drill bits with different specifications can be met.
The turntable 7 is provided with three workpiece brackets 71 which sequentially correspond to the slotting grinding wheel 1, the edge cleaning grinding wheel 2 and the opening rear angle grinding wheel 3, and the workpiece brackets 71 are detachably connected with the turntable 7. The upper end of the workpiece bracket 71 is provided with a semicircular groove matched with the outer diameter of a corresponding product and used for supporting and fixing a drill bit, and the workpiece bracket 71 is also connected with a cooling system under the normal condition.
With particular reference to fig. 2 and 5: the opening rear angle grinding wheel feeding assembly 5 comprises an X-direction feeding mechanism 51, a Z-direction feeding mechanism 52 connected to a feeding output end of the X-direction feeding mechanism 51 and an A-direction feeding mechanism 53 connected to a feeding output end of the Z-direction feeding mechanism 52, wherein the feeding axis of the A-direction feeding mechanism 53 is positioned in the Z direction and the Y direction (the feeding axis of the A-direction feeding mechanism 53 is perpendicular to the X direction), the feeding axis of the A-direction feeding mechanism 53 is positioned between the Z direction and the Y direction, and the opening rear angle grinding wheel 3 is connected to the feeding output end of the A-direction feeding mechanism 53.
The plane of the opening rear angle grinding wheel 3 is parallel to the plane of the A direction and the X direction, and the angle between the A direction and the Z direction (the angle C in the figures 2 and 5) can be adjusted. Specifically, the angle C is adjustable in the following manner: the feeding output end of the Z-direction feeding mechanism 52 is provided with a bottom plate 521, a certain rotation center parallel to the X direction is arranged between the A-direction feeding mechanism 53 and the bottom plate 521, the bottom plate 521 is provided with an arc groove 522 corresponding to the rotation center, and the arc groove 522 is connected with the A-direction feeding mechanism 53 through a locking bolt. When the angle C needs to be adjusted, the direction a feeding mechanism 53 can be rotated around the rotation center by loosening the locking bolt, and then the direction a feeding mechanism 53 and the bottom plate 521 are locked by tightening the locking bolt. The angle a adjusts the opening angle of the drill. The opening relief angle grinding wheel feeding assembly 5 comprises six movement shafts of X, Y, Z, A, B and Y-axis self rotation, wherein the Y-axis is realized by the Y-direction feeding mechanism 41, the B-axis (the adjustment of the angle C) needs to be independently adjusted manually, linkage with other shafts is not needed, and the six movement shafts can completely meet the processing requirements of drill opening and double relief angle grinding.
For convenience of description, the three bit-holding assemblies 4 in this embodiment are, in order, a first bit-holding assembly 4A, a second bit-holding assembly 4B, and a third bit-holding assembly 4C, and the nomenclature is only used to limit the positions of the bit-holding assemblies 4, and does not limit the corresponding structures.
With reference to fig. 6 to 8: the arrow on the rotary table 7 indicates the rotation direction of the rotary table 7 in the normal working state, when the drill bit clamped by the first drill bit clamping assembly 4A is in the grooving state, the drill bit clamped by the second drill bit clamping assembly 4B and the drill bit clamped by the third drill bit clamping assembly 4C are in the edge clearance state and the opening clearance angle state (fig. 6 state), respectively, the clearance angle processing described in this embodiment includes end edge and double clearance angle grinding, that is, the processes from C to d in fig. 1.
When the drill bit held by the first drill bit holding assembly 4A is in the edge-clearing processing state, the drill bit held by the second drill bit holding assembly 4B and the drill bit held by the third drill bit holding assembly 4C are in the opening rear angle processing state and the grooving processing state (fig. 7 state), respectively.
When the drill bit clamped by the first drill bit clamping assembly 4A is in the opening rear angle processing state, the drill bit clamped by the second drill bit clamping assembly 4B and the drill bit clamped by the third drill bit clamping assembly 4C are in the grooving processing state and the edge cleaning processing state respectively (fig. 8 state).
The embodiment also discloses a processing technology adopting the drill bit processing device, which comprises the following steps: specifically, as shown in fig. 6 to 8, the method includes the following steps:
in the initial stage of processing, the feeding device 6 conveys the drill blank to a certain drill clamping component 4, then rotates one station (usually 120 degrees), the grooving grinding wheel 1 corresponds to the drill clamping component 4 which already clamps the drill, and starts grooving, meanwhile, the feeding device 6 conveys the next drill blank to the next drill clamping component 4, when all three drill clamping components 4 have the drill, complete circulation can be entered, namely all drill clamping components 4 have the drill to process.
The grooving grinding wheel 1, the edge cleaning grinding wheel 2 and the opening relief angle grinding wheel 3 sequentially synchronously process drill bits clamped on the drill bit clamping component I4A, the drill bit clamping component II 4B and the drill bit clamping component III 4C (the processing is carried out simultaneously, the processing duration and the processing steps are not completely consistent), after the drill bits clamped on the drill bit clamping component III 4C are processed by the opening relief angle grinding wheel 3, the blank is conveyed to the drill bit clamping component III 4C by the feeding device 6, and the processed drill bits on the drill bit clamping component III 4C are pushed to the discharging direction.
As shown in fig. 7: the turntable 7 rotates a station, so that the grooving grinding wheel 1, the edge cleaning grinding wheel 2 and the opening relief angle grinding wheel 3 simultaneously and respectively machine a drill bit clamped on the drill bit clamping component three 4C, the drill bit clamping component one 4A and the drill bit clamping component two 4B, after the drill bit clamped on the drill bit clamping component two 4B is machined by the opening relief angle grinding wheel 3, the feeding device 6 conveys the blank to the drill bit clamping component two 4B, and the machined drill bit on the drill bit clamping component two 4B is pushed to the discharging direction.
As shown in fig. 8: the turntable 7 continuously rotates for one station, so that the grooving grinding wheel 1, the edge cleaning grinding wheel 2 and the opening relief angle grinding wheel 3 simultaneously and respectively machine a drill bit clamped on the drill bit clamping component two 4B, the drill bit clamping component three 4C and the drill bit clamping component one 4A, after the drill bit clamped on the drill bit clamping component one 4A is machined by the opening relief angle grinding wheel 3, the feeding device 6 conveys the blank to the drill bit clamping component one 4A, and the drill bit machined on the drill bit clamping component one 4A is pushed towards the discharging direction.
In the above-mentioned course of working, when carousel 7 rotated, drill bit centre gripping subassembly 4 moved to the direction of keeping away from carousel 7, avoided drill bit centre gripping subassembly 4 to cause the interference to the rotation of carousel 7. Moreover, although the grinding time lengths of the three grinding wheels have certain difference, the overall machining rhythm is not influenced.
As can be seen from the above description: the centre gripping is processed by fluting emery wheel 1, clear limit emery wheel 2, opening relief angle emery wheel 3 in proper order in three drill bit centre gripping subassembly 4 to go on in step in three course of working, promoted machining efficiency, guaranteed the continuity of drill bit processing, because the drill bit belongs to the great product of output, consequently the promotion of production efficiency has great economic benefits to the enterprise. Meanwhile, a plurality of devices in the prior art are integrated into one device, so that the cost of the device and the occupied area of a factory building are reduced.
As shown in fig. 9, the chain line in fig. 9 indicates the rotation axis of the drill during the process of opening and double clearance grinding in the prior art, which is called "step-and-step", and which has a very high requirement for the accuracy of the chuck drill, so that even if automatic chuck is implemented, the chuck process is still long. And adopt opening relief angle emery wheel 3 to carry out opening (end sword) and double relief angle grinding to the drill bit among this embodiment, can satisfy the processing demand equally. The drill bit is in the course of working at every turn, only by the clamping once, when promoting machining efficiency, also can guarantee machining efficiency.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (10)

1. A drill bit machining device is characterized in that: the device comprises a turntable (7), and a slotting grinding wheel (1), an edge cleaning grinding wheel (2) and an opening relief angle grinding wheel (3) which are sequentially arranged on the turntable (7) in an annular and equidistant manner, wherein the turntable (7) is also provided with a feeding device (6) corresponding to the opening relief angle grinding wheel (3);
three drill bit clamping components (4) which sequentially correspond to the grooving grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3) are arranged on the outer side of the rotary table (7);
the turntable (7) can drive the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3) to synchronously rotate, and the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3) are used for synchronously machining drill bits clamped in the three drill bit clamping components (4).
2. A drill bit machining device according to claim 1, wherein: the drill bit clamping assembly (4) is used for clamping a drill handle of a drill bit in a machining state and rotating, and can also drive the drill bit in the clamping machining state to stretch relative to the axis direction of the rotary table (7).
3. A drill bit machining device according to claim 1, characterized in that: the three drill bit clamping assemblies (4) are a drill bit clamping assembly I (4A), a drill bit clamping assembly II (4B) and a drill bit clamping assembly III (4C) in sequence;
when the drill bit clamped by the drill bit clamping assembly I (4A) is in a grooving machining state, the drill bit clamped by the drill bit clamping assembly II (4B) and the drill bit clamped by the drill bit clamping assembly III (4C) are in an edge cleaning machining state and an opening rear angle machining state respectively;
when the drill bit clamped by the first drill bit clamping assembly (4A) is in an edge cleaning processing state, the drill bit clamped by the second drill bit clamping assembly (4B) and the drill bit clamped by the third drill bit clamping assembly (4C) are in an opening rear angle processing state and a slotting processing state respectively;
when the drill bit clamped by the first drill bit clamping assembly (4A) is in the opening rear angle processing state, the drill bit clamped by the second drill bit clamping assembly (4B) and the drill bit clamped by the third drill bit clamping assembly (4C) are in the grooving processing state and the edge cleaning processing state respectively.
4. A drill bit machining device according to any one of claims 1 to 3, characterized in that: the opening and back angle grinding wheel feeding assembly (5) comprises an X-direction feeding mechanism (51), a Z-direction feeding mechanism (52) connected to the feeding and outputting end of the X-direction feeding mechanism (51), and an A-direction feeding mechanism (53) connected to the feeding and outputting end of the Z-direction feeding mechanism (52), wherein the feeding axis of the A-direction feeding mechanism (53) is positioned in the plane of the Z direction and the Y direction, the feeding axis of the A-direction feeding mechanism (53) is positioned between the Z direction and the Y direction, and the opening and back angle grinding wheel (3) is connected to the feeding and outputting end of the A-direction feeding mechanism (53);
wherein, the Y direction is the radial direction of the rotary table (7) corresponding to the corresponding drill bit clamping assembly (4), the Z direction is the direction vertical to the rotation plane of the rotary table (7), and the X direction is the tangential direction of the rotary table (7) corresponding to the corresponding drill bit clamping assembly (4).
5. A drill bit machining device according to claim 4, wherein: the plane of the opening rear angle grinding wheel (3) is parallel to the plane of the A direction and the X direction, and the angle between the A direction and the Z direction can be adjusted.
6. A drill bit machining device according to claim 5, wherein: the feeding output end of the Z-direction feeding mechanism (52) is provided with a bottom plate (521), a certain rotation center parallel to the X direction is arranged between the A-direction feeding mechanism (53) and the bottom plate (521), the bottom plate (521) is provided with an arc groove (522) corresponding to the rotation center, and the arc groove (522) is connected with the A-direction feeding mechanism (53) through a locking bolt.
7. A drill bit machining device according to claim 1, wherein: the drill bit clamping assembly (4) comprises a Y-direction feeding mechanism (41) and a support (42) arranged at the feeding output end of the Y-direction feeding mechanism (41), a discharging shaft (43) arranged in the Y-direction is arranged in the support (42), a chuck (44) used for clamping a drill bit is arranged at the turntable end of the discharging shaft (43), the discharging shaft (43) is driven by a motor (45) to rotate by taking the Y-axis as the axis,
wherein, the Y direction is the radial direction of the rotary table (7) corresponding to the corresponding drill bit clamping component (4), the Z direction is the direction vertical to the rotation plane of the rotary table (7), and the X direction is the tangential direction of the rotary table (7) corresponding to the corresponding drill bit clamping component (4).
8. A drill bit machining device according to claim 1, characterized in that: the rotary table (7) is provided with three workpiece brackets (71) which sequentially correspond to the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3), and the workpiece brackets (71) are detachably connected with the rotary table (7).
9. A machining process using the drill machining device according to claim 3, characterized in that: comprises the following steps:
the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief grinding wheel (3) sequentially and synchronously process the drill bits clamped on the drill bit clamping component I (4A), the drill bit clamping component II (4B) and the drill bit clamping component III (4C), and after the drill bits clamped on the drill bit clamping component III (4C) are processed by the opening relief grinding wheel (3), the blank is conveyed to the drill bit clamping component III (4C) by the feeding device (6), and the processed drill bits on the drill bit clamping component III (4C) are pushed to the discharging direction;
the turntable (7) rotates by one station, so that the grooving grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3) simultaneously and respectively process drill bits clamped on the drill bit clamping component III (4C), the drill bit clamping component I (4A) and the drill bit clamping component II (4B), after the drill bits clamped on the drill bit clamping component II (4B) are processed by the opening relief angle grinding wheel (3), the blank is conveyed to the drill bit clamping component II (4B) by the feeding device (6), and the processed drill bits on the drill bit clamping component II (4B) are pushed towards the discharging direction;
the turntable (7) continuously rotates one station, so that the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the opening relief angle grinding wheel (3) simultaneously and respectively process a drill bit clamped on the drill bit clamping component II (4B), the drill bit clamping component III (4C) and the drill bit clamping component I (4A), after the drill bit clamped on the drill bit clamping component I (4A) is processed by the opening relief angle grinding wheel (3), the blank is conveyed to the drill bit clamping component I (4A) by the feeding device (6), and the drill bit processed on the drill bit clamping component I (4A) is pushed towards the discharging direction.
10. The machining process of the drill machining device according to claim 9, wherein: when the rotary table (7) rotates, the drill bit clamping component (4) moves towards the direction far away from the rotary table (7).
CN202211248032.4A 2022-10-12 2022-10-12 Drill bit machining device and machining process Active CN115302320B (en)

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Publication number Priority date Publication date Assignee Title
US20150111479A1 (en) * 2012-05-30 2015-04-23 Ulrich Barensteiner Device for sharpening tools with cutters, such as for example drills, milling tools or the like
CN105364644A (en) * 2014-08-26 2016-03-02 耕宇科技有限公司 Regrinding method and device for drill bit
CN209902807U (en) * 2019-03-14 2020-01-07 深圳宏友金钻石工具有限公司 Grinding wheel grinding device
CN213438639U (en) * 2020-11-06 2021-06-15 戴杰磨床有限公司 Combined grinding machine for machining marking cutter
CN213917351U (en) * 2020-11-25 2021-08-10 芜湖洪金机床有限公司 Multi-station machining system for four-blade end milling cutter
CN215547262U (en) * 2021-07-08 2022-01-18 台州中驰智谷科技有限公司 High-precision four-station drill bit grinding machine
CN114505732A (en) * 2021-12-31 2022-05-17 江苏雷工工具有限公司 Preparation complete equipment special for high-performance grinding drill
CN114799922A (en) * 2022-06-06 2022-07-29 丹阳市盛力机械有限公司 Numerical control turntable type multi-station tool grinding machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150111479A1 (en) * 2012-05-30 2015-04-23 Ulrich Barensteiner Device for sharpening tools with cutters, such as for example drills, milling tools or the like
CN105364644A (en) * 2014-08-26 2016-03-02 耕宇科技有限公司 Regrinding method and device for drill bit
CN209902807U (en) * 2019-03-14 2020-01-07 深圳宏友金钻石工具有限公司 Grinding wheel grinding device
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CN215547262U (en) * 2021-07-08 2022-01-18 台州中驰智谷科技有限公司 High-precision four-station drill bit grinding machine
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CN114799922A (en) * 2022-06-06 2022-07-29 丹阳市盛力机械有限公司 Numerical control turntable type multi-station tool grinding machine

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