CN104070365B - A kind of multistation drilling-tapping machine - Google Patents

A kind of multistation drilling-tapping machine Download PDF

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Publication number
CN104070365B
CN104070365B CN201410319795.2A CN201410319795A CN104070365B CN 104070365 B CN104070365 B CN 104070365B CN 201410319795 A CN201410319795 A CN 201410319795A CN 104070365 B CN104070365 B CN 104070365B
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China
Prior art keywords
motor
chuck
belt
processing assembly
frock clamp
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Application number
CN201410319795.2A
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Chinese (zh)
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CN104070365A (en
Inventor
申俊
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Nantong TongZhou Dongda Machinery Co., Ltd
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Chuzhou Device For Switching Science And Technology Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/02Machine tools for performing different machining operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • B23Q1/44Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/58Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism a single sliding pair
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/28Electric drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/04Work clamping means using fluid means or a vacuum

Abstract

The invention discloses a kind of multistation drilling-tapping machine, including frock clamp, along the left processing assembly of horizontal line processed and right processing assembly and the vertical processing assembly along plumb line processed;Left processing assembly is positioned on the left of frock clamp, and right processing assembly is positioned on the right side of frock clamp;Right processing assembly includes two chucks driven by same motor in synchrony.The present invention can be machined out processing from the left and right sides of workpiece and top simultaneously simultaneously, effective improving production efficiency.

Description

A kind of multistation drilling-tapping machine
Technical field
The invention belongs to machining technique field, be specifically related to a kind of multistation drilling-tapping machine.
Background technology
Existing drilling-tapping machine, typically simply can only process workpiece, it is impossible to provide the processing of multistation simultaneously, Making it apply to be restricted, it is difficult to meet the processing request of particular component, its structure exists needs improvements badly.
Summary of the invention
It is an object of the invention to provide a kind of multistation that can be simultaneously machined out above workpiece both sides and workpiece to bore Hole tooth machining unit.
The technical scheme realizing the object of the invention is: a kind of multistation drilling-tapping machine, including frock clamp, along horizontal line The left processing assembly of processed and right processing assembly and the vertical processing assembly along plumb line processed;Left processing assembly Being positioned on the left of frock clamp, right processing assembly is positioned on the right side of frock clamp;Right processing assembly includes being driven by same motor in synchrony Two chucks.
In such scheme, right processing assembly includes the right guide rail mechanism moved in left-right direction, and is arranged on right guide rail machine Right motor, right leather belt drive mechanism, right first chuck and right second chuck on structure;Right motor is same by right leather belt drive mechanism Step drives right first chuck and right second chuck.
The present invention can be machined out processing from the left and right sides of workpiece and top simultaneously simultaneously, effectively promotes and produces effect Rate.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is left processing assembly and a kind of perspective view of frock clamp in drilling-tapping machine shown in Fig. 1;
Fig. 3 is left processing assembly shown in Fig. 2 and the frock clamp a kind of perspective view when another angle is observed;
Fig. 4 is right processing assembly and a kind of perspective view of frock clamp in drilling-tapping machine shown in Fig. 1;
Fig. 5 is a kind of perspective view of vertical processing assembly in drilling-tapping machine shown in shown in Fig. 1;
Fig. 6 is the vertical processing assembly a kind of perspective view when another angle is observed shown in Fig. 5;
Fig. 7 is a kind of explosive view of vertical processing assembly shown in Fig. 5;
Fig. 8 is a kind of perspective view of frock clamp in drilling-tapping machine shown in shown in Fig. 1.
Detailed description of the invention
(embodiment 1)
Fig. 1 to Fig. 8 shows a kind of detailed description of the invention of the present invention, and wherein, Fig. 1 is a kind of stereochemical structure signal of the present invention Figure;Fig. 2 is left processing assembly and a kind of perspective view of frock clamp in drilling-tapping machine shown in Fig. 1;Fig. 3 is figure Left processing assembly shown in 2 and the frock clamp a kind of perspective view when another angle is observed;Fig. 4 is to bore shown in Fig. 1 Right processing assembly and a kind of perspective view of frock clamp in the tooth machining unit of hole;Fig. 5 is drilling-tapping machine shown in shown in Fig. 1 In a kind of perspective view of vertical processing assembly;Fig. 6 is that vertical processing assembly shown in Fig. 5 is when another angle is observed A kind of perspective view;Fig. 7 is a kind of explosive view of vertical processing assembly shown in Fig. 5;Fig. 8 is to bore shown in shown in Fig. 1 A kind of perspective view of frock clamp in the tooth machining unit of hole.
The present embodiment is a kind of multistation drilling-tapping machine, including frock clamp 1, along the left processing group of horizontal line processed Part 2 and right processing assembly 3, along vertical processing assembly 4, the base 5 of plumb line processed be fixedly installed on base Support 6;Frock clamp, left processing assembly and right processing assembly are arranged on base;Support includes being fixedly installed on base Four pillars 61, left processing assembly is positioned on the left of frock clamp, and right processing assembly is positioned on the right side of frock clamp, vertically processes Assembly is positioned at directly over frock clamp.
Left processing assembly includes the left rail mechanism 21 moved in left-right direction, and is arranged on the left side in left rail mechanism One motor 22, left first belt 23, left first chuck 24, left second motor 25, left second belt 26, left second chuck 27, left 3rd belt 28, left 3rd chuck 29;Left first motor is by left first chuck of left first belt drive, a left side second Motor is by left second chuck of left second belt drive, and left second chuck is by left 3rd chuck of left 3rd belt drive.
In left processing assembly, left first motor is provided with left first motor output wheel 221, a left side first close to one end of frock clamp Chuck is provided with left first belt pulley 241 away from one end of frock clamp, and left first motor output wheel is left by left first belt drive First belt pulley;Left second chuck is in the one end away from frock clamp, along distance frock clamp from closely setting successively to remote direction There are left second belt pulley 271 and left driving wheel 272;Left 3rd chuck is provided with left 3rd belt pulley in the one end away from frock clamp 291;Left second motor is provided with left second motor output wheel 251, left second motor output wheel at it away from one end of frock clamp By left second belt drive left driving wheel, left second belt pulley synchronizes to drive left 3rd chuck by left 3rd belt pulley.This Structure has the advantage that the left rail mechanism in the present embodiment and the right guide rail mechanism in right processing assembly are equal sizes, also I.e. in the present embodiment, the space shared by left processing assembly and the space shared by right processing assembly are basically identical, but left processing group A part chuck more than right processing assembly;In order to meet this design requirement, so using different biographies in left processing assembly Flowing mode so that left second motor in synchrony drives two chucks;This relatively reasonable in structure compact, make full use of space, it is achieved Overall miniaturization;This kind of structure can promote working (machining) efficiency, it is ensured that crudy, moreover it is possible to effectively reduces manufacturing cost.
Right processing assembly includes the right guide rail mechanism 35 moved in left-right direction, and the right electricity being arranged on right guide rail mechanism Machine 31, right leather belt drive mechanism 32, right first chuck 33 and right second chuck 34;Right motor passes through right leather belt drive mechanism Synchronize to drive right first chuck and right second chuck.
In right processing assembly, right first chuck is provided with right first belt pulley 331, right second folder away from a side of frock clamp Head is provided with right second belt pulley 341 away from a side of frock clamp, and right motor is provided with right motor close to a side of frock clamp Output wheel 311, right leather belt drive mechanism includes right leather belt 321 and two two regulating wheels 322 for tensioning right leather belt;Right First belt pulley and the right second contour setting of belt pulley and be positioned at below right motor output wheel, and it is symmetrically distributed in right motor output wheel Both sides;Two regulating wheels are positioned under right motor output wheel and are positioned on right first belt pulley, and are symmetrically distributed in right motor The both sides of output wheel, within being also located at right first belt pulley and right second belt pulley simultaneously;The driving face of right leather belt is set in right electricity On machine output wheel, right first belt pulley and right second belt pulley, two regulating wheels are crimped on the back side of right leather belt;Right leather belt Running shape is convex shape.This structure has the advantage that only can synchronize to drive two chucks to carry out machine with a motor adds Work processes, and these two chucks can be allowed to synchronize to process workpiece, it is possible to by the position of default fixture so that respectively press from both sides during use Workpiece is individually processed by head, this relatively reasonable in structure compact, it is possible to promote working (machining) efficiency, it is ensured that crudy, simultaneously Can also effectively reduce manufacturing cost.
Vertical processing assembly include the vertical guide rail mechanism 41 moved up and down, for drive this vertical guide rail mechanism make on move down Dynamic vertical driving mechanism 46, and the vertical chuck 43, second of motor vertical 42, first being arranged in vertical guide rail mechanism Vertical chuck 44 and the first vertical strap 45.
In vertical processing assembly, the main shaft of motor vertical directly drives the first vertical chuck, and the main shaft of motor vertical also sets Having vertical output wheel 421, the second vertical chuck is provided with vertical-transmission wheel 441, the first vertical strap away from one end of frock clamp It is set on vertical output wheel and vertical-transmission wheel.
Vertical guide rail mechanism 41 includes vertical guide rail 411 and the vertical guide rail being fixedly installed on pillar along plumb line direction The slide rail 412 of adaptation, the mounting seat 413 of the fixing each slide rail of connection;Vertical driving mechanism includes being fixedly installed in the horizontal direction Entablature 461 on pillar and sill 462, the vertical drive motor 463 being fixedly installed on entablature and vertical drive Down-feed screw 464 that motor output shaft is fixedly linked and the vertical swivel nut 465 being set on down-feed screw;Down-feed screw Lower end is fixedly installed on sill, and vertical swivel nut is fixedly installed in mounting seat.This structure operationally, due to entablature Arrange relative to ground static with sill, so after starting vertical drive motor, down-feed screw rotates, and drives vertical swivel nut upper and lower Mobile.Owing to vertical swivel nut is also fixedly installed in mounting seat, it is possible to drive mounting seat entirety to make up and down by vertical swivel nut Mobile.It addition, this kind of structure makes motor vertical synchronize to drive the first vertical chuck and the second vertical chuck, these two chucks are i.e. Can be individually to workpiece synchronization process, it is possible to workpiece individual processing, this relatively reasonable in structure compact, it is possible to promote and add work efficiency Rate, it is ensured that crudy, can also effectively reduce manufacturing cost simultaneously.
Frock clamp includes the fixture guiding rail mechanism 11 moved along the longitudinal direction, and is arranged on the folder in fixture guiding rail mechanism Have 12, for driving the cylinder assembly 13 of fixture opening and closing.
In frock clamp, fixture guiding rail mechanism includes being provided with the fixture guiding rail 112 of frock leading screw 111, sliding along fixture guiding rail Frock slide block 113, be set on frock leading screw and be fixedly installed on the frock swivel nut of frock slider bottom and for driving work The frock leading screw of dress screw turns drives motor 115;Cylinder assembly includes cylinder 131 and piston 132, and cylinder is fixedly installed on On the roof of slide block;Fixture includes fixing fixture block 121 and movable clip block 122, and fixing fixture block is fixedly installed on slide block roof, Movable clip block is fixedly installed on piston;Piston driving movable clip block makes itself and fixing fixture block unclamp or clamp.This structural behaviour Reliable and stable, it is possible to achieve full-automatic mechanical process.
In the present embodiment, each chuck can be installed drill bit, screw tap or tapping and be processed workpiece according to demand.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not to this The restriction of the embodiment of invention.For those of ordinary skill in the field, can also do on the basis of the above description Go out change or the variation of other multi-form.Here without also cannot all of embodiment be given exhaustive.And these belong to this Obvious change or variation that the connotation of invention is extended out still fall within protection scope of the present invention.

Claims (1)

1. a multistation drilling-tapping machine, including frock clamp, along the left processing assembly of horizontal line processed and right processing group Part;Left processing assembly is positioned on the left of frock clamp, and right processing assembly is positioned on the right side of frock clamp;It is characterized in that: also include edge The vertical processing assembly of plumb line processed;Right processing assembly includes two chucks driven by same motor in synchrony;Left processing Assembly includes the left rail mechanism moved in left-right direction, and be arranged in left rail mechanism a left side the first motor, left first skin Band, left first chuck, left second motor, left second belt, left second chuck, left 3rd belt, left 3rd chuck;Left the One motor by left first left first chuck of belt drive, left second motor by left second chuck of left second belt drive, left the Two chucks are by left 3rd chuck of left 3rd belt drive;In left processing assembly, left first motor sets close to one end of frock clamp Having left first motor output wheel, left first chuck is provided with left first belt pulley, left first motor output away from one end of frock clamp Take turns by left first belt pulley of left first belt drive;Left second chuck, in the one end away from frock clamp, presss from both sides along distance frock Have from being closely sequentially provided with left second belt pulley and left driving wheel to remote direction;Left 3rd chuck sets in the one end away from frock clamp There is left 3rd belt pulley;Left second motor is provided with left second motor output wheel, left second motor at it away from one end of frock clamp Output wheel passes through left second belt drive left driving wheel, and left second belt pulley synchronizes to drive left 3rd folder by left 3rd belt pulley Head;Right processing assembly includes the right guide rail mechanism moved in left-right direction, and be arranged on right guide rail mechanism right motor, the right side Belt gear, right first chuck and right second chuck;Right motor synchronizes to drive right first chuck by right leather belt drive mechanism With right second chuck;In right processing assembly, right first chuck is provided with right first belt pulley away from a side of frock clamp, and right the Two chucks are provided with right second belt pulley away from a side of frock clamp, and right motor is provided with right motor close to a side of frock clamp Output wheel, right leather belt drive mechanism includes right leather belt and two two regulating wheels for tensioning right leather belt;Right first belt pulley and The right second contour setting of belt pulley and being positioned at below right motor output wheel, and it is symmetrically distributed in the both sides of right motor output wheel;Two Regulating wheel is positioned under right motor output wheel and is positioned on right first belt pulley, and is symmetrically distributed in the two of right motor output wheel Side, within being also located at right first belt pulley and right second belt pulley simultaneously;The driving face of right leather belt be set in right motor output wheel, On right first belt pulley and right second belt pulley, two regulating wheels are crimped on the back side of right leather belt;The operation shape of right leather belt in Convex shape.
CN201410319795.2A 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine Active CN104070365B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410319795.2A CN104070365B (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
CN201610830898.4A CN106271638A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201410319795.2A CN104070365B (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610831572.3A CN106271643A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610832449.3A CN106312559A (en) 2014-07-06 2014-07-06 Multi-station drilling tapping machine
CN201610831077.2A CN106271642A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610830983.0A CN106271640A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine with frock clamp
CN201610830903.1A CN106271639A (en) 2014-07-06 2014-07-06 Multistation drilling-tapping machine
CN201610832450.6A CN106312560A (en) 2014-07-06 2014-07-06 Drilling tapping machine comprising tool fixture
CN201610830984.5A CN106271641A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency

Related Child Applications (8)

Application Number Title Priority Date Filing Date
CN201610830983.0A Division CN106271640A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine with frock clamp
CN201610831077.2A Division CN106271642A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610832450.6A Division CN106312560A (en) 2014-07-06 2014-07-06 Drilling tapping machine comprising tool fixture
CN201610830903.1A Division CN106271639A (en) 2014-07-06 2014-07-06 Multistation drilling-tapping machine
CN201610830984.5A Division CN106271641A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610831572.3A Division CN106271643A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610830898.4A Division CN106271638A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610832449.3A Division CN106312559A (en) 2014-07-06 2014-07-06 Multi-station drilling tapping machine

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CN104070365A CN104070365A (en) 2014-10-01
CN104070365B true CN104070365B (en) 2017-01-04

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CN201610830984.5A Withdrawn CN106271641A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610831572.3A Withdrawn CN106271643A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610832450.6A Withdrawn CN106312560A (en) 2014-07-06 2014-07-06 Drilling tapping machine comprising tool fixture
CN201610832449.3A Withdrawn CN106312559A (en) 2014-07-06 2014-07-06 Multi-station drilling tapping machine
CN201610830903.1A Withdrawn CN106271639A (en) 2014-07-06 2014-07-06 Multistation drilling-tapping machine
CN201610830898.4A Withdrawn CN106271638A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610830983.0A Withdrawn CN106271640A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine with frock clamp
CN201610831077.2A Withdrawn CN106271642A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201410319795.2A Active CN104070365B (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine

Family Applications Before (8)

Application Number Title Priority Date Filing Date
CN201610830984.5A Withdrawn CN106271641A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610831572.3A Withdrawn CN106271643A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine that can promote working (machining) efficiency
CN201610832450.6A Withdrawn CN106312560A (en) 2014-07-06 2014-07-06 Drilling tapping machine comprising tool fixture
CN201610832449.3A Withdrawn CN106312559A (en) 2014-07-06 2014-07-06 Multi-station drilling tapping machine
CN201610830903.1A Withdrawn CN106271639A (en) 2014-07-06 2014-07-06 Multistation drilling-tapping machine
CN201610830898.4A Withdrawn CN106271638A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine
CN201610830983.0A Withdrawn CN106271640A (en) 2014-07-06 2014-07-06 A kind of drilling-tapping machine with frock clamp
CN201610831077.2A Withdrawn CN106271642A (en) 2014-07-06 2014-07-06 A kind of multistation drilling-tapping machine

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CN110303176B (en) * 2019-07-01 2020-09-15 常州博瑞电力自动化设备有限公司 Double-station multidirectional drilling device and method for die casting case frame

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CN203993121U (en) * 2014-07-06 2014-12-10 滁州开关电器科技有限公司 A kind of multistation drilling-tapping machine

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CN106271640A (en) 2017-01-04
CN104070365A (en) 2014-10-01
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