CN109129687A - A kind of modified ABS material and preparation method and application - Google Patents

A kind of modified ABS material and preparation method and application Download PDF

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Publication number
CN109129687A
CN109129687A CN201810873895.8A CN201810873895A CN109129687A CN 109129687 A CN109129687 A CN 109129687A CN 201810873895 A CN201810873895 A CN 201810873895A CN 109129687 A CN109129687 A CN 109129687A
Authority
CN
China
Prior art keywords
gear
chamber
frame
wall
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810873895.8A
Other languages
Chinese (zh)
Inventor
周戈
周一戈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Top Mechanical & Electrical Equipment Co Ltd
Original Assignee
Guangzhou Top Mechanical & Electrical Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Top Mechanical & Electrical Equipment Co Ltd filed Critical Guangzhou Top Mechanical & Electrical Equipment Co Ltd
Priority to CN201810873895.8A priority Critical patent/CN109129687A/en
Publication of CN109129687A publication Critical patent/CN109129687A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/16Perforating by tool or tools of the drill type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02Means for moving the cutting member into its operative position for cutting
    • B26D5/06Means for moving the cutting member into its operative position for cutting by electrical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08Means for actuating the cutting member to effect the cut
    • B26D5/086Electric, magnetic, piezoelectric, electro-magnetic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention discloses a kind of modified ABS material and preparation method and applications, including substrate, the substrate top end face is installed with column, the column top end surface is installed with mounting rack, the mounting rack left-hand end is equipped with and prepares frame, described prepare symmetrically is equipped with the first hole slot in frame bottom end face, extend up and down in the first hole slot inner roof wall and is equipped with positioning chamber, positioning bottom of chamber wall, which is rotatably assorted, is equipped with cone frame, the fixed rack gear in the cone frame periphery, up and down through equipped with second hole slot opposite with first hole slot in the cone frame, intracavitary be slidably installed of the positioning has position adjustable rack, the position adjustable rack bottom end be rotatably assorted be equipped with to the intermeshing cone pulley of the cone frame, the cone pulley bottom face is fixedly installed with drill bit, the drill bit leads to respectively into second hole slot and the first hole slot, the left and right sides Connection is equipped with fluting between the positioning bottom of chamber end.

Description

A kind of modified ABS material and preparation method and application
Technical field
The present invention relates to ABS material processing technique field, specially a kind of modified ABS material and preparation method and application.
Background technique
When ABS plastic plate produces and processes, the punching of ABS plastic plate in the prior art mainly manually adjusts replacement Drill bit, service efficiency are supported, and when needing more bit change repeatedly, need repeated disassembled and assembled, this largely effects on ABS plastic plate preparation quality And preparation speed, and traditional punch device is not easy to drill bit be adjusted rotation direction, therefore, punches limitation By force, inconvenient for use, it influences to produce and process efficiency to ABS plastic plate, needs to improve.
Summary of the invention
The purpose of the present invention is to provide a kind of modified ABS material and preparation method and applications, for overcoming the prior art In drawbacks described above.
A kind of modified ABS material according to the present invention and preparation method and application, including substrate, the substrate top end face It is installed with column, the column top end surface is installed with mounting rack, and the mounting rack left-hand end is equipped with and prepares frame, described to prepare frame Bilateral symmetry is equipped with the first hole slot in bottom end face, extends up and down in the first hole slot inner roof wall and is equipped with positioning chamber, the tune Position bottom of chamber wall, which is rotatably assorted, is equipped with cone frame, the fixed rack gear in the cone frame periphery, run through up and down in the cone frame equipped with and institute The second opposite hole slot of the first hole slot is stated, intracavitary be slidably installed of the positioning has position adjustable rack, the position adjustable rack bottom end rotation Be fitted with to the intermeshing cone pulley of the cone frame, the cone pulley bottom face is fixedly installed with drill bit, the drill bit Leading into second hole slot and the first hole slot respectively, connection is equipped with fluting between the positioning bottom of chamber end of the left and right sides, The fluting bottom end is installed with the first generator, and first generator top power is fitted with first gear, and described One gear leads to intracavitary into the positioning and is intermeshed respectively with the gear ring of the left and right sides, at left and right sides of the positioning chamber in inner wall It is symmetrically arranged with guide groove, described on the upside of the guide groove, which prepares left and right in frame and extend, to be equipped with first and pass with chamber, sliding in the guide groove It is fitted with guide plate, the guide plate of the left and right sides is fixedly connected with the position adjustable rack respectively, the guide plate screw-internal thread fit Screw rod is installed, screw rod bottom extending end is rotatably assorted with the guide groove inner bottom wall and connect, and the screw tip extends First passes with intracavitary and be rotatably assorted and be mounted on described first and pass with chamber end wall up and down described in Duan Tongjin, and described first passes with intracavitary The screw rod outer surface be installed with synchronizing wheel, be driven and be coupled between the synchronizing wheel on the screw rod of the left and right sides There is synchronous belt, the first of the positioning chamber right-hand end in left side, which passes, is installed with second gear with the intracavitary screw rod outer surface, First biography of the positioning chamber left-hand end on right side is installed with mutual with the second gear with the intracavitary screw rod outer surface The third gear of engagement, the screw tip end power of the positioning chamber left-hand end on right side are fitted with the second electricity rolling Son, second generator are fixedly arranged on described first and pass in intracavitary roof.
Further technical solution, the mounting rack left end face is interior to be equipped with first sliding groove, sliding in the first sliding groove It is fitted with the first gliding mass, first gliding mass is fixedly connected with the frame for preparing, and is set in inner wall on the right side of the first sliding groove There is second sliding slot, be slidably installed the second gliding mass being fixedly connected with first gliding mass in the second sliding slot, described Length between before and after second gliding mass is greater than the length between the first gliding mass front and back, is equipped in the second sliding slot inner bottom wall Caveli, press is fitted with return elastic slice between the caveli bottom wall and the second gliding mass bottom end face, and described the It is equipped with rotation slot in two sliding slot inner roof walls, is rotatably assorted between wall at left and right sides of the rotation slot and shaft is installed, the shaft Outer surface is installed with the protrusion wheel with second gliding mass press cooperation, and the mounting rack on the right side of the rotation slot is interior to downward It stretches and is equipped with second and passes with chamber, the shaft, which leads to pass into described second, is installed with the 4th gear with intracavitary and outer surface, and the described 4th On the downside of gear it is described second pass with it is intracavitary be rotatably assorted be equipped with intermeshing 5th gear of the 4th gear, it is described The intermeshing of 5th gear bottom end is equipped with the 6th gear, and the 6th gear right-hand end power is fitted with third generator, The third generator is fixedly arranged on described second and passes in inner wall on the right side of chamber.
Further technical solution, the 4th gear are greater than the 5th gear, and the 5th gear is greater than the 6th gear.
The bit diameter of further technical solution, the left and right sides differs.
The beneficial effects of the present invention are: when needing to ABS plastic plate boring work, the ABS plastic plate that will need to process It being mounted on and prepares on the downside of frame, the first generator of starting drives the drill bit rotation in left side, meanwhile, starting third generator drives protrusion Wheel rotates a circle, at this point, the second gliding mass slides into second sliding slot bottom wall and then passes through the pressure on top surface reset of return elastic slice, that is, bore Head, which is moved downward, returns to initial position to after the punching of ABS plastic plate, at this point, finishing to the punching of ABS plastic plate, punch out step letter Folk prescription just, is operated without man-hour manually hand-held punch device, effectively reduces manual steps, and is punched to ABS plastic plate steady Qualitative height avoids influencing drilling quality due to generating shaking when punching.
When needing to adjust using drill bit, the second generator of starting drives screw rod rotation, and screw rod drives the position adjustable rack on right side Slide downward is simultaneously intermeshed with the cone frame on right side, meanwhile, screw rod drives the position adjustable rack upward sliding in left side and the cone with left side Frame is disengaged from, at this point, the first generator of starting can drive the drill bit rotation on right side to drill ABS plastic plate, is adjusted It is simple and convenient to save step, without manually controlling to adjust, adjusts convenience height, greatly improves to process ABS plastic plate and imitate Rate is worth of widely use.
Detailed description of the invention
Fig. 1 is a kind of modified ABS material of the invention and preparation method and applies internal overall structure diagram;
Fig. 2 is the enlarged structure schematic diagram that frame is prepared in the present invention;
Fig. 3 is the overlooking structure diagram of the first gliding mass and the second gliding mass in the present invention.
Specific embodiment
Below with reference to Fig. 1-3, the present invention is described in detail.
Referring to Fig.1-3, a kind of modified ABS material of embodiment according to the present invention and preparation method and application, including base Plate 100,100 top end surface of substrate are installed with column 101, and 101 top end surface of column is installed with mounting rack 112, institute It states 112 left-hand end of mounting rack and is symmetrically equipped with the first hole slot in 116 bottom end face of frame equipped with frame 116, described prepare is prepared 124, extend in 124 inner roof wall of the first hole slot up and down and be equipped with positioning chamber 129,129 bottom wall of positioning chamber is rotatably assorted peace Equipped with cone frame 126, the fixed rack gear 127 in 126 periphery of cone frame, run through in the cone frame 126 up and down equipped with and described first The second opposite hole slot 125 of hole slot 124, being slidably installed in the positioning chamber 129 has position adjustable rack 142, the position adjustable rack 142 Bottom end be rotatably assorted be equipped with to the intermeshing cone pulley 141 of the cone frame 126, the fixed peace of 141 bottom face of cone pulley Equipped with drill bit 121, the drill bit 121 leads to respectively into second hole slot 125 and the first hole slot 124, the institute of the left and right sides It states connection between positioning 129 bottom end of chamber and is equipped with fluting 123,123 bottom ends of the fluting are installed with the first generator 122, and described the One generator, 122 top power is fitted with first gear 143, the first gear 143 lead into the positioning chamber 129 and It is intermeshed respectively with the gear ring 127 of the left and right sides, is symmetrically arranged with guide groove 128, institute in 129 left and right sides inner wall of positioning chamber State the upside of guide groove 128 it is described prepare left and right in frame 116 and extend be equipped with first and pass with chamber 135, be slidably matched in the guide groove 128 Guide plate 132 is installed, the guide plate 132 of the left and right sides is fixedly connected with the position adjustable rack 142 respectively, in the guide plate 132 It being threadedly engaged and screw rod 131 is installed, the 131 bottom extending end of screw rod is rotatably assorted with 128 inner bottom wall of guide groove to be connect, The 131 top extended segment of screw rod, which leads to pass to match in chamber 135 and be rotatably assorted to be mounted on described first and pass into described first, matches chamber 135 Upper and lower end wall, described first passes and is installed with synchronizing wheel 134 with 131 outer surface of the screw rod in chamber 135, the left and right sides it is described Transmission is fitted with synchronous belt 133,129 right-hand end of positioning chamber in left side between the synchronizing wheel 134 on screw rod 131 First pass and be installed with second gear 138,129 left side of the positioning chamber on right side with 131 outer surface of the screw rod in chamber 135 The first of end passes to be installed with and the intermeshing third tooth of the second gear 138 with 131 outer surface of the screw rod in chamber 135 Wheel 136, the 131 top end power of the screw rod of 129 left-hand end of positioning chamber on right side is fitted with the second generator 137, second generator 137 is fixedly arranged on described first and passes in 135 inner roof wall of chamber.
Valuably or illustratively, first sliding groove 117, the first sliding groove are equipped in 112 left end face of mounting rack Being slidably installed in 117 has the first gliding mass 115, and first gliding mass 115 is fixedly connected with the frame 116 for preparing, and described Second sliding slot 103 is equipped in one sliding slot, 117 right side inner wall, being slidably installed in the second sliding slot 103 has and described first The second gliding mass 107 that gliding mass 115 is fixedly connected, the length between second gliding mass, 107 front and back are greater than first gliding mass 115 Length between front and back, is equipped with caveli 118 in 103 inner bottom wall of second sliding slot, 118 bottom wall of caveli and described the Press is fitted with return elastic slice 102 between two gliding masses, 107 bottom end face, is equipped with and turns in 103 inner roof wall of second sliding slot Slot 113 is moved, is rotatably assorted between 113 left and right sides wall of rotation slot and shaft 108 is installed, 108 outer surface of shaft is solid Equipped with the protrusion wheel 114 with second gliding mass 107 press cooperation, in the mounting rack 112 on 113 right side of the rotation slot to Lower extend is equipped with the second biography with chamber 111, and the shaft 108, which leads to pass into described second, is installed with the 4th in chamber 111 and outer surface Gear 109, described the second of 109 downside of the 4th gear passes to be equipped with and the 4th gear with being rotatably assorted in chamber 111 109 intermeshing 5th gears 106,106 bottom end of the 5th gear, which is intermeshed, is equipped with the 6th gear 104, and the described 6th 104 right-hand end power of gear is fitted with third generator 105, and the third generator 105, which is fixedly arranged on described second and passes, matches In 111 right side inner wall of chamber, pump to automatically control the frame 116 for preparing to ABS plastic plate boring work.
Valuably or illustratively, the 4th gear 109 is greater than the 5th gear 106, and the 5th gear 106 is greater than the 6th tooth Wheel 104 prevents protrusion 114 velocities of rotation of wheel too fast to carry out retarded motion.
Valuably or illustratively, 121 diameter of the drill bit of the left and right sides differs, to increase to ABS plastic twist drill Hole property easy to use.
When needing to ABS plastic plate boring work, the ABS plastic plate processed will be needed to be mounted on and prepare 116 downside of frame, Starting the first generator 122 drives the drill bit 121 in left side to rotate, meanwhile, starting third generator 105 drives 114 rotation of protrusion wheel It circles, at this point, the second gliding mass 107 slides into 103 bottom wall of second sliding slot and then passes through the pressure on top surface reset of return elastic slice 102, That is, drill bit 121, which is moved downward, returns to initial position to after the punching of ABS plastic plate, at this point, finishing to the punching of ABS plastic plate.
When needing to adjust using drill bit 121, the second generator 137 of starting drives screw rod 131 to rotate, and screw rod 131 drives 142 slide downward of position adjustable rack on right side is simultaneously intermeshed with the cone frame 126 on right side, meanwhile, screw rod 131 drives the position adjustable rack in left side 142 upward slidings are simultaneously disengaged from the cone frame 126 in left side, at this point, the first generator 122 of starting can drive the drill bit on right side 121 rotations drill to ABS plastic plate.
The beneficial effects of the present invention are: when needing to ABS plastic plate boring work, the ABS plastic plate that will need to process It being mounted on and prepares on the downside of frame, the first generator of starting drives the drill bit rotation in left side, meanwhile, starting third generator drives protrusion Wheel rotates a circle, at this point, the second gliding mass slides into second sliding slot bottom wall and then passes through the pressure on top surface reset of return elastic slice, that is, bore Head, which is moved downward, returns to initial position to after the punching of ABS plastic plate, at this point, finishing to the punching of ABS plastic plate, punch out step letter Folk prescription just, is operated without man-hour manually hand-held punch device, effectively reduces manual steps, and is punched to ABS plastic plate steady Qualitative height avoids influencing drilling quality due to generating shaking when punching.
When needing to adjust using drill bit, the second generator of starting drives screw rod rotation, and screw rod drives the position adjustable rack on right side Slide downward is simultaneously intermeshed with the cone frame on right side, meanwhile, screw rod drives the position adjustable rack upward sliding in left side and the cone with left side Frame is disengaged from, at this point, the first generator of starting can drive the drill bit rotation on right side to drill ABS plastic plate, is adjusted It is simple and convenient to save step, without manually controlling to adjust, adjusts convenience height, greatly improves to process ABS plastic plate and imitate Rate is worth of widely use.
Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention It is subject to claims appended hereto.

Claims (4)

1. a kind of modified ABS material and preparation method and application, including substrate, it is characterised in that: the substrate top end face is solid Equipped with column, the column top end surface is installed with mounting rack, and the mounting rack left-hand end is equipped with and prepares frame, described to prepare frame bottom Bilateral symmetry is equipped with the first hole slot in end surface, extends up and down in the first hole slot inner roof wall and is equipped with positioning chamber, the positioning Bottom of chamber wall, which is rotatably assorted, is equipped with cone frame, the fixed rack gear in the cone frame periphery, in the cone frame up and down through be equipped with it is described The second opposite hole slot of first hole slot, intracavitary be slidably installed of the positioning have position adjustable rack, and the position adjustable rack bottom end rotation is matched Conjunction be equipped with to the intermeshing cone pulley of the cone frame, the cone pulley bottom face is fixedly installed with drill bit, the drill bit point Do not lead into second hole slot and the first hole slot, connection is equipped with fluting, institute between the positioning bottom of chamber end of the left and right sides It states fluting bottom end and is installed with the first generator, first generator top power is fitted with first gear, and described first Gear leads to intracavitary into the positioning and is intermeshed respectively with the gear ring of the left and right sides, right in inner wall at left and right sides of the positioning chamber Claim to be equipped with guide groove, described on the upside of the guide groove, which prepares left and right in frame and extend, to be equipped with first and pass with chamber, and sliding is matched in the guide groove Conjunction is equipped with guide plate, and the guide plate of the left and right sides is fixedly connected with the position adjustable rack respectively, the guide plate screw-internal thread fit peace Equipped with screw rod, screw rod bottom extending end is rotatably assorted with the guide groove inner bottom wall and connect, the screw tip extended segment Lead into described first and passes with intracavitary and be rotatably assorted to be mounted on described first and pass and pass with end wall above and below chamber, described first with intracavitary The screw rod outer surface is installed with synchronizing wheel, is driven and is fitted between the synchronizing wheel on the screw rod of the left and right sides Synchronous belt, the first of the positioning chamber right-hand end in left side, which passes, is installed with second gear with the intracavitary screw rod outer surface, right The first of the positioning chamber left-hand end of side passes to be installed with the intracavitary screw rod outer surface and mutually nibble with the second gear The third gear of conjunction, the screw tip end power of the positioning chamber left-hand end on right side are fitted with the second electricity rolling Son, second generator are fixedly arranged on described first and pass in intracavitary roof.
2. a kind of modified ABS material according to claim 1 and preparation method and application, it is characterised in that: the installation First sliding groove is equipped in frame left end face, being slidably installed in the first sliding groove has the first gliding mass, first gliding mass with The frame for preparing is fixedly connected, and is equipped with second sliding slot on the right side of the first sliding groove in inner wall, is slidably matched in the second sliding slot The second gliding mass being fixedly connected with first gliding mass is installed, the length between the second gliding mass front and back is greater than described first Length between before and after gliding mass, the second sliding slot inner bottom wall is interior to be equipped with caveli, and the caveli bottom wall and described second are slided Press is fitted with return elastic slice between body bottom end face, is equipped with rotation slot, the rotation in the second sliding slot inner roof wall It is rotatably assorted between wall at left and right sides of slot and shaft is installed, the shaft outer surface, which is installed with to press with second gliding mass, to be cooperated Protrusion wheel, extend downwardly in the mounting rack on the right side of the rotation slot and pass equipped with second with chamber, the shaft is led into described Second biography is installed with the 4th gear with intracavitary and outer surface, and described second on the downside of the 4th gear passes to be rotatably assorted with intracavitary It is equipped with and is equipped with the 6th gear with intermeshing 5th gear of the 4th gear, the 5th gear bottom end intermeshing, The 6th gear right-hand end power is fitted with third generator, and the third generator is fixedly arranged on described second and passes with chamber In the inner wall of right side.
3. a kind of modified ABS material according to claim 1 and preparation method and application, it is characterised in that: the described 4th Gear is greater than the 5th gear, and the 5th gear is greater than the 6th gear.
4. a kind of modified ABS material according to claim 1 and preparation method and application, it is characterised in that: the left and right sides The bit diameter differ.
CN201810873895.8A 2018-08-02 2018-08-02 A kind of modified ABS material and preparation method and application Withdrawn CN109129687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810873895.8A CN109129687A (en) 2018-08-02 2018-08-02 A kind of modified ABS material and preparation method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810873895.8A CN109129687A (en) 2018-08-02 2018-08-02 A kind of modified ABS material and preparation method and application

Publications (1)

Publication Number Publication Date
CN109129687A true CN109129687A (en) 2019-01-04

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Application Number Title Priority Date Filing Date
CN201810873895.8A Withdrawn CN109129687A (en) 2018-08-02 2018-08-02 A kind of modified ABS material and preparation method and application

Country Status (1)

Country Link
CN (1) CN109129687A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110882U (en) * 1973-01-18 1974-09-21
US5378090A (en) * 1992-11-06 1995-01-03 Arturo Salice S.P.A. Adapter for drilling machines
CN105149637A (en) * 2015-08-24 2015-12-16 天津超迈科技发展有限公司 Multi-station automatic drilling machine
CN105562757A (en) * 2016-02-29 2016-05-11 芜湖瑞和机电有限公司 Multi-drill workpiece drilling machining device
CN106976131A (en) * 2017-05-23 2017-07-25 慈溪智江机械科技有限公司 A kind of plate drilling device for the drill bit that can automatically switch
CN108000160A (en) * 2017-12-22 2018-05-08 朱江帆 A kind of easily new alloy material device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110882U (en) * 1973-01-18 1974-09-21
US5378090A (en) * 1992-11-06 1995-01-03 Arturo Salice S.P.A. Adapter for drilling machines
CN105149637A (en) * 2015-08-24 2015-12-16 天津超迈科技发展有限公司 Multi-station automatic drilling machine
CN105562757A (en) * 2016-02-29 2016-05-11 芜湖瑞和机电有限公司 Multi-drill workpiece drilling machining device
CN106976131A (en) * 2017-05-23 2017-07-25 慈溪智江机械科技有限公司 A kind of plate drilling device for the drill bit that can automatically switch
CN108000160A (en) * 2017-12-22 2018-05-08 朱江帆 A kind of easily new alloy material device

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Application publication date: 20190104

WW01 Invention patent application withdrawn after publication