CN115302320B - Drill bit machining device and machining process - Google Patents

Drill bit machining device and machining process Download PDF

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Publication number
CN115302320B
CN115302320B CN202211248032.4A CN202211248032A CN115302320B CN 115302320 B CN115302320 B CN 115302320B CN 202211248032 A CN202211248032 A CN 202211248032A CN 115302320 B CN115302320 B CN 115302320B
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CN
China
Prior art keywords
drill bit
grinding wheel
clamping assembly
bit clamping
rear angle
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CN202211248032.4A
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Chinese (zh)
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CN115302320A (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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    • 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 drill bit machining process, and belongs to the technical field of drill bit machining: the drill bit processing device comprises a rotary table, a grooving grinding wheel, a trimming grinding wheel and an opening rear angle grinding wheel which are sequentially and annularly equidistantly arranged on the rotary table, and the rotary table is also provided with a feeding device corresponding to the opening rear angle grinding wheel; three drill bit clamping assemblies sequentially corresponding to the slotting grinding wheel, the edge-cleaning grinding wheel and the open rear angle grinding wheel are arranged on the outer side of the turntable; the turntable can drive the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel to synchronously rotate, and the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel can simultaneously process the drill bit clamped in the three drill bit clamping assemblies. The three drill clamping assemblies are sequentially processed by the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel, and the three processing processes are synchronously carried out. By adopting the processing mode, the drill bit is clamped once in each processing process, so that the processing efficiency is improved and the processing efficiency is ensured.

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 technological steps of slotting (spiral grooves), edge trimming, opening (end edges) and double-relief grinding, and particularly referring to fig. 1, states a to b in fig. 1 represent slotting, states b to c represent edge trimming, states c to d represent opening and double-relief grinding, and in the prior art, the four technological steps are respectively carried out through corresponding special equipment, and the drill bit belongs to mass production products, so that the feeding and discharging processes between the technological steps are time-consuming and labor-consuming.
Considering that the processing time length of the three process steps is not different and is continuously carried out, the three process steps are integrated into one comprehensive equipment to carry out full-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 solve the defects in the prior art, the invention provides a drill bit machining device and a drill bit machining process, and solves the technical problems that the drill bit machining speed is low and multiple clamping is required in the prior art.
In order to achieve the above object, the present invention adopts the following technical scheme:
a drill bit processing device: the automatic cutting machine comprises a rotary table, a grooving grinding wheel, a trimming grinding wheel and an opening rear angle grinding wheel which are sequentially and annularly equidistantly arranged on the rotary table, wherein the rotary table is also provided with a feeding device corresponding to the opening rear angle grinding wheel;
three drill bit clamping assemblies sequentially corresponding to the slotting grinding wheel, the edge-cleaning grinding wheel and the open rear angle grinding wheel are arranged on the outer side of the turntable;
the turntable can drive the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel to synchronously rotate, and the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel can simultaneously process the drill bit clamped in the three drill bit clamping assemblies.
Preferably, the drill bit processing device comprises: the drill bit clamping assembly is used for clamping the drill shank of the drill bit in the machining state and automatically rotating, and can also drive the drill bit to stretch and retract relative to the axis of the turntable in the clamping machining state.
Preferably, the drill bit processing device comprises: the three bit clamping assemblies are sequentially a first bit clamping assembly, a second bit clamping assembly and a third bit clamping assembly;
when the drill bit clamped by the first drill bit clamping assembly is in a grooving 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 respectively in a trimming processing state and an opening rear angle processing state;
when the drill bit clamped by the first drill bit clamping assembly is in a trimming 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 respectively in an opening rear angle processing state and a slotting processing state;
when the drill bit clamped by the first drill bit clamping assembly is in an opening rear angle machining 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 a slotting machining state and a trimming machining state.
Preferably, the drill bit processing device comprises: the open rear angle grinding wheel feeding assembly comprises an X-direction feeding mechanism, a Z-direction feeding mechanism connected with a feeding output end of the X-direction feeding mechanism and a feeding mechanism connected with a feeding output end of the Z-direction feeding mechanism, wherein a feeding axis of the feeding mechanism is positioned in a plane where the Z-direction and the Y-direction are positioned, the feeding axis of the feeding mechanism is positioned between the Z-direction and the Y-direction, and the open rear angle grinding wheel is connected with the feeding output end of the feeding mechanism;
the Y direction is the radial direction of the rotary table corresponding to the corresponding bit clamping assembly, the Z direction is the direction perpendicular to the rotary plane of the rotary table, and the X direction is the tangential direction of the rotary table corresponding to the corresponding bit clamping assembly.
Preferably, the drill bit processing device comprises: the plane of the open back angle grinding wheel is parallel to the plane of the X direction, and the angle between the X direction and the Z direction can be adjusted.
Preferably, the drill bit processing device comprises: the Z-direction feeding mechanism is provided with a bottom plate at the feeding output end, 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 bit processing device comprises: 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 Y-direction discharging shaft is arranged in the bracket, a chuck 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,
the Y direction is the radial direction of the rotary table corresponding to the corresponding bit clamping assembly, the Z direction is the direction perpendicular to the rotary plane of the rotary table, and the X direction is the tangential direction of the rotary table corresponding to the corresponding bit clamping assembly.
Preferably, the drill bit processing device comprises: the turntable is provided with three workpiece brackets which correspond to the grooving grinding wheel, the edge cleaning grinding wheel and the opening rear angle grinding wheel in sequence, and the workpiece brackets are detachably connected with the turntable.
The processing technology of the drill bit processing device is adopted: comprises the following steps:
the grooving grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel sequentially synchronously process the drill bit clamped on the first drill bit clamping assembly, the second drill bit clamping assembly and the third drill bit clamping assembly, and after the open rear angle grinding wheel completes processing the drill bit clamped on the third drill bit clamping assembly, the feeding device conveys blanks to the third drill bit clamping assembly and pushes the processed drill bit on the third drill bit clamping assembly to a discharging direction;
the rotary table rotates a station, so that the slotting grinding wheel, the edge-cleaning grinding wheel and the open rear angle grinding wheel simultaneously process the drill bit clamped on the drill bit clamping assembly III, the drill bit clamping assembly I and the drill bit clamping assembly II respectively, after the open rear angle grinding wheel finishes processing the drill bit clamped on the drill bit clamping assembly II, the feeding device conveys blanks to the drill bit clamping assembly II, and pushes the processed drill bit on the drill bit clamping assembly II to a discharging direction;
the rotary table continues to rotate a station, so that the slotting grinding wheel, the edge cleaning grinding wheel and the open rear angle grinding wheel simultaneously process the drill bit clamped on the drill bit clamping assembly II, the drill bit clamping assembly III and the drill bit clamping assembly I respectively, and after the open rear angle grinding wheel completes processing the drill bit clamped on the drill bit clamping assembly I, the feeding device conveys blanks to the drill bit clamping assembly I and pushes the processed drill bit on the drill bit clamping assembly I to the discharging direction.
Preferably, the processing technology of the drill processing device comprises the following steps: when the turntable rotates, the bit clamping assembly moves in a direction away from the turntable.
The invention has the beneficial effects that:
compared with the prior art, the three drill clamping assemblies 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, the invention integrates a plurality of devices in the prior art into one device, reduces the cost of the devices and the occupied area of a factory building, and has better economic value.
By adopting the processing mode, the drill bit is clamped once in each processing process, so that the processing efficiency is improved, and meanwhile, the processing efficiency is ensured, and the product quality is further ensured.
Drawings
FIG. 1 is a prior art drill bit process diagram;
FIG. 2 is a perspective view of a drill bit machining apparatus of the present invention;
FIG. 3 is a second perspective view of the drill bit machining apparatus of the present invention;
FIG. 4 is a block diagram of a bit clamping assembly of the present invention;
FIG. 5 is a block diagram of an open relief grinding wheel feed assembly of the present invention;
FIG. 6 is a first process state diagram of the present invention;
FIG. 7 is a second process state diagram of the present invention;
FIG. 8 is a third state diagram of the present invention;
FIG. 9 is a prior art double relief angle tooling schematic of a drill bit;
meaning of reference numerals: 1-grooving grinding wheel; 2-edge-cleaning grinding wheel; 3-opening a relief angle grinding wheel; 4-a bit clamping assembly; 5-an open relief grinding wheel feed assembly; 6, a feeding device; 7-a turntable; 41-Y direction feeding mechanism; 42-a bracket; 43-a discharging shaft; 44-clamping heads; 45-motor; 51-X direction feeding mechanism; 52-Z direction feeding mechanism; 53-A feeding mechanism; 521-a bottom plate; 522-arc grooves; 71-a workpiece carrier; 4A-bit clamping assembly one; 4B-a second bit clamping assembly; and a third 4C-bit clamping assembly.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 2 to 8: the embodiment discloses a drill bit processingequipment: the automatic cutting machine comprises a rotary table 7, a slotting grinding wheel 1, a trimming grinding wheel 2 and an opening rear angle grinding wheel 3 which are sequentially and annularly equidistantly arranged on the rotary table 7, wherein the rotary table 7 is also provided with a feeding device 6 corresponding to the opening rear angle grinding wheel 3, and the outer side of the rotary table 7 is provided with three drill bit clamping assemblies 4 sequentially corresponding to the slotting grinding wheel 1, the trimming grinding wheel 2 and the opening rear angle grinding wheel 3; the correspondence described here means that the blank conveyed by the feeding device 6 can normally enter the working range of the open-end relief angle grinding wheel 3, and can be clamped by the bit clamping assembly 4 corresponding to the open-end relief angle grinding wheel 3. The feeding device 6 may adopt a bar feeding mechanism in the prior art, and this embodiment will not be described in detail.
The turntable 7 of this embodiment can drive the slotting grinding wheel 1, the edge-cleaning grinding wheel 2 and the open-end relief grinding wheel 3 to synchronously rotate, and make the slotting grinding wheel 1, the edge-cleaning grinding wheel 2 and the open-end relief grinding wheel 3 simultaneously process the drill bit clamped in the three drill bit clamping assemblies 4, and the description can be understood as follows: the rotary table 7 is rotatable, but has three working angles, and the three bit clamping assemblies 4 correspond to the three working angles of the rotary table 7, and can be understood as follows: when the rotary table 7 is at any one of the three working angles, the grooving grinding wheel 1, the edge cleaning grinding wheel 2 and the opening rear angle grinding wheel 3 can be used for machining the drill bit clamped by the three drill bit clamping assemblies 4.
As shown in fig. 4: the drill clamping assembly 4 is used for clamping and rotating a drill shank of a drill in a machining state and can also drive the drill to stretch and retract relative to the axis of the turntable 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 Y-direction discharging shaft 43 is arranged in the support 42, a chuck 44 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, after the drill bit clamped at the chuck 44 is processed, the processed drill bit is pushed to the inside of the discharging shaft 43 by pushing the next drill bit to be processed, and then the processed drill bit is sequentially discharged outside of the discharging shaft 43 along with the processing in the process.
Wherein, the Y direction is the radial direction of the rotary table 7 corresponding to the corresponding bit clamping assembly 4, the Z direction is the direction perpendicular 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 bit clamping assembly 4, and since the rotary table 7 is rotatable, the Y direction in this embodiment is not fixed, and can be understood as the connection line between the center position of the rotary table 7 and the corresponding bit clamping assembly 4. While the Z direction is fixed, typically in the vertical direction. The X direction is the same as the Y direction, and is not fixed, and in particular, reference can be made to X1, X2, X3 and Y1, Y2 and Y3 in the drawings, wherein the positive direction of the Y direction is towards the center of the turntable 7, and all positive directions of the X directions are uniform. The X direction, Y direction and Z direction in this embodiment are only for convenience of description, and the protection scope of the present application should not be limited in this way. The degrees of freedom of movement of the grooved grinding wheel 1 and the trimming grinding wheel 2 are not limited in this embodiment, and the machining requirements of the drill bits with different specifications can be met.
The turntable 7 is provided with three workpiece brackets 71 which correspond to the grooving grinding wheel 1, the trimming grinding wheel 2 and the opening rear angle grinding wheel 3 in sequence, and the workpiece brackets 71 are detachably connected with the turntable 7. The upper end of the workpiece carrier 71 is provided with a semicircular groove matched with the outer diameter of a corresponding product for supporting and fixing a drill bit, and the workpiece carrier 71 is also connected with a cooling system in general.
Referring specifically to fig. 2 and 5: the open-back 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, an A-direction feeding mechanism 53 connected to a feeding output end of the Z-direction feeding mechanism 52, wherein a feeding axis of the A-direction feeding mechanism 53 is positioned in a plane where the Z-direction and the Y-direction lie (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 open-back angle grinding wheel 3 is connected to the feeding output end of the A-direction feeding mechanism 53.
The plane of the open relief angle grinding wheel 3 is parallel to the planes of the a direction and the X direction, and the angle between the a direction and the Z direction (angle C in fig. 2 and 5) is adjustable. Specifically, the above-mentioned angle C is adjustable in the following manner: the Z-direction feeding mechanism 52 is provided with a bottom plate 521 at the feeding output end, a rotation center parallel to the X-direction is provided 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 to the a-direction feeding mechanism 53 by a locking bolt. When the angle C needs to be adjusted, the a-direction feeding mechanism 53 can be rotated around the rotation center by only loosening the locking bolt, and then the a-direction feeding mechanism 53 and the bottom plate 521 are locked by screwing the locking bolt. The angle a is the opening angle of the drill. The open-ended rear angle grinding wheel feeding assembly 5 comprises X, Y, Z, A, B and six self-rotating motion shafts, wherein the Y shaft is realized by a Y-direction feeding mechanism 41, the B shaft (the adjustment of the angle C) is required to be independently and manually adjusted, the linkage with other shafts is not required, and the six motion shafts can completely meet the processing requirements of drill opening and double rear angle grinding.
For convenience of description, the three bit clamping assemblies 4 in this embodiment are the first bit clamping assembly 4A, the second bit clamping assembly 4B, and the third bit clamping assembly 4C in this order, and the naming manner is merely to define the positions of the bit clamping assemblies 4, and not to define the corresponding structures.
In connection with fig. 6 to 8: the arrow on the turntable 7 indicates the rotation direction of the turntable 7 in the normal working state, when the drill bit clamped by the first drill bit clamping assembly 4A is in the grooving working 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 respectively in the edging working state and the open relief angle working state (fig. 6 state), and the relief angle working described in this embodiment includes end cutting and double relief angle grinding, i.e. the processes from C to d in fig. 1.
When the drill bit clamped by the first drill bit clamping assembly 4A is in the 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 respectively in the opening relief angle processing state and the grooving processing state (fig. 7 state).
When the drill bit clamped by the first drill bit clamping assembly 4A is in the open relief angle machining 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 respectively in the grooving machining state and the edge trimming machining state (fig. 8 state).
The embodiment also discloses a processing technology adopting the drill bit processing device: specifically, as shown in fig. 6 to 8, the method comprises the following steps:
at the initial stage of machining, the feeding device 6 conveys the drill blank to a certain drill clamping assembly 4, then rotates a station (usually 120 degrees), the grooving grinding wheel 1 corresponds to the drill clamping assembly 4 which clamps the drill, and starts grooving action, meanwhile, the feeding device 6 conveys the next drill blank to the next drill clamping assembly 4, and when all three drill clamping assemblies 4 have drills, the complete cycle can be entered, namely, all drill clamping assemblies 4 have drills for machining.
The grooving grinding wheel 1, the trimming grinding wheel 2 and the opening relief angle grinding wheel 3 sequentially synchronously process the drill bits clamped on the first drill bit clamping component 4A, the second drill bit clamping component 4B and the third drill bit clamping component 4C (the processing is performed simultaneously and does not represent the duration and the complete consistency of the steps of the processing), and after the opening relief angle grinding wheel 3 completes the processing of the drill bit clamped on the third drill bit clamping component 4C, the feeding device 6 conveys the blank to the third drill bit clamping component 4C and pushes the processed drill bit on the third drill bit clamping component 4C to the discharging direction.
As shown in fig. 7: the rotary table 7 rotates a station, so that the slotting grinding wheel 1, the edge cleaning grinding wheel 2 and the open rear angle grinding wheel 3 respectively process drill bits clamped on the drill bit clamping assembly three 4C, the drill bit clamping assembly one 4A and the drill bit clamping assembly two 4B at the same time, after the open rear angle grinding wheel 3 finishes processing the drill bit clamped on the drill bit clamping assembly two 4B, the feeding device 6 conveys blanks to the drill bit clamping assembly two 4B, and pushes the processed drill bit on the drill bit clamping assembly two 4B to a discharging direction.
As shown in fig. 8: the rotary table 7 continues to rotate a station, so that the slotting grinding wheel 1, the edge cleaning grinding wheel 2 and the open rear angle grinding wheel 3 simultaneously process the drill bit clamped on the drill bit clamping assembly II 4B, the drill bit clamping assembly III 4C and the drill bit clamping assembly I4A respectively, after the open rear angle grinding wheel 3 finishes processing the drill bit clamped on the drill bit clamping assembly I4A, the feeding device 6 conveys blanks to the drill bit clamping assembly I4A, and pushes the processed drill bit on the drill bit clamping assembly I4A to a discharging direction.
In the above processing procedure, when the rotary table 7 rotates, the bit clamping assembly 4 moves in a direction away from the rotary table 7, so as to avoid interference of the bit clamping assembly 4 to the rotation of the rotary table 7. Furthermore, although the grinding time lengths of the three grinding wheels have certain difference, the integral processing rhythm is not affected.
From the above description it can be seen that: the three drill clamping assemblies 4 are sequentially processed by the grooving grinding wheel 1, the edge cleaning grinding wheel 2 and the opening rear angle grinding wheel 3, and the three processing processes are synchronously performed, so that the processing efficiency is improved, the continuity of drill processing is ensured, and the drill belongs to a product with larger production quantity, so that the improvement of the production efficiency has larger economic benefit for enterprises. Meanwhile, the embodiment integrates a plurality of devices in the prior art into one device, so that the cost of the devices and the occupied area of a factory building are reduced.
As shown in fig. 9, the dash-dot line in fig. 9 shows the rotation axis of the drill during the grinding process of the opening and the double relief angle in the prior art, and this machining mode is commonly called as "walking and forking step", and has very high precision requirement for clamping the drill, so that even if automatic clamping is realized, the clamping process still needs longer time. The open relief angle grinding wheel 3 in the embodiment is adopted to grind the opening (end edge) and the double relief angles of the drill bit, and the processing requirement can be met. The drill bit is clamped once in each machining process, so that the machining efficiency is improved, and meanwhile, the machining efficiency can be guaranteed.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.

Claims (3)

1. A drill bit processingequipment, characterized in that: the automatic trimming machine comprises a rotary table (7), slotted grinding wheels (1), trimming grinding wheels (2) and open rear angle grinding wheels (3) which are sequentially and annularly equidistantly arranged on the rotary table (7), wherein the rotary table (7) is also provided with a feeding device (6) corresponding to the open rear angle grinding wheels (3);
three drill clamping assemblies (4) which sequentially correspond to the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the open rear angle grinding wheel (3) are arranged on the outer side of the rotary disc (7);
the rotary table (7) can drive the slotting grinding wheel (1), the edge-cleaning grinding wheel (2) and the open rear angle grinding wheel (3) to synchronously rotate, and synchronously process the drill bit clamped in the three drill bit clamping assemblies (4) through the slotting grinding wheel (1), the edge-cleaning grinding wheel (2) and the open rear angle grinding wheel (3);
the drill bit clamping assembly (4) is used for clamping a drill shank of a drill bit in a machining state and autorotating, and can also drive the drill bit to stretch and retract relative to the axis direction of the turntable (7) in the clamping machining state;
the three bit clamping assemblies (4) are a first bit clamping assembly (4A), a second bit clamping assembly (4B) and a third bit clamping assembly (4C) in sequence;
when the drill bit clamped by the first drill bit clamping component (4A) is in a grooving processing state, the drill bit clamped by the second drill bit clamping component (4B) and the drill bit clamped by the third drill bit clamping component (4C) are respectively in a trimming processing state and an opening rear angle processing state;
when the drill bit clamped by the first drill bit clamping component (4A) is in a trimming processing state, the drill bit clamped by the second drill bit clamping component (4B) and the drill bit clamped by the third drill bit clamping component (4C) are respectively in an opening relief angle processing state and a grooving processing state;
when the drill bit clamped by the first drill bit clamping component (4A) is in an opening rear angle machining state, the drill bit clamped by the second drill bit clamping component (4B) and the drill bit clamped by the third drill bit clamping component (4C) are respectively in a slotting machining state and a trimming machining state;
the open rear angle grinding wheel feeding assembly (5) comprises an X-direction feeding mechanism (51), a Z-direction feeding mechanism (52) connected with a feeding output end of the X-direction feeding mechanism (51) and an A-direction feeding mechanism (53) connected with a feeding output end of the Z-direction feeding mechanism (52), wherein a feeding axis of the A-direction feeding mechanism (53) is positioned in a plane where the Z-direction and the Y-direction are positioned, a feeding axis of the A-direction feeding mechanism (53) is positioned between the Z-direction and the Y-direction, and the open rear angle grinding wheel (3) is connected with the feeding output end of the A-direction feeding mechanism (53);
the plane of the open rear angle grinding wheel (3) is parallel to the planes of the A direction and the X direction, and the angle between the A direction and the Z direction can be adjusted;
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;
the drill bit clamping assembly (4) comprises a Y-direction feeding mechanism (41) and a bracket (42) arranged at the feeding output end of the Y-direction feeding mechanism (41), a Y-direction discharging shaft (43) is arranged in the bracket (42), a chuck (44) 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 bit clamping assembly (4), the Z direction is the direction perpendicular 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 bit clamping assembly (4);
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 rear angle grinding wheel (3), and the workpiece brackets (71) are detachably connected with the rotary table (7).
2. The machining process using the drill machining device according to claim 1, characterized in that: comprises the following steps:
the grooving grinding wheel (1), the edge cleaning grinding wheel (2) and the open rear angle grinding wheel (3) sequentially synchronously process the drill bit clamped on the first drill bit clamping component (4A), the second drill bit clamping component (4B) and the third drill bit clamping component (4C), and after the open rear angle grinding wheel (3) completes processing the drill bit clamped on the third drill bit clamping component (4C), the feeding device (6) conveys blanks to the third drill bit clamping component (4C) and pushes the processed drill bit on the third drill bit clamping component (4C) to a discharging direction;
rotating a rotary table (7) to enable a grooving grinding wheel (1), a trimming grinding wheel (2) and an opening rear angle grinding wheel (3) to simultaneously process drill bits clamped on a drill bit clamping assembly III (4C), a drill bit clamping assembly I (4A) and a drill bit clamping assembly II (4B) respectively, and after the opening rear angle grinding wheel (3) finishes processing the drill bit clamped on the drill bit clamping assembly II (4B), conveying blanks to the drill bit clamping assembly II (4B) by a feeding device (6) and pushing the processed drill bit on the drill bit clamping assembly II (4B) to a discharging direction;
the rotary table (7) continues to rotate a station, so that the slotting grinding wheel (1), the edge cleaning grinding wheel (2) and the open rear angle grinding wheel (3) simultaneously process and clamp the drill bit on the drill bit clamping assembly II (4B), the drill bit clamping assembly III (4C) and the drill bit clamping assembly I (4A) respectively, after the open rear angle grinding wheel (3) finishes processing the drill bit clamped on the drill bit clamping assembly I (4A), the feeding device (6) conveys the blank to the drill bit clamping assembly I (4A) and pushes the drill bit which is processed on the drill bit clamping assembly I (4A) to the discharging direction.
3. The processing technology of the drill bit processing device according to claim 2, wherein: when the rotary table (7) rotates, the bit clamping assembly (4) moves in a direction 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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012010689A1 (en) * 2012-05-30 2013-12-05 Vollmer Werke Maschinenfabrik Gmbh Device for sharpening tools with cutting edges, such as drills, milling cutters 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
CN114505732B (en) * 2021-12-31 2023-06-16 江苏雷工工具有限公司 Dedicated preparation complete sets of high performance grinding bores
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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