CN202824985U - Fully automatic bit alloy welding machine - Google Patents

Fully automatic bit alloy welding machine Download PDF

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Publication number
CN202824985U
CN202824985U CN 201220402834 CN201220402834U CN202824985U CN 202824985 U CN202824985 U CN 202824985U CN 201220402834 CN201220402834 CN 201220402834 CN 201220402834 U CN201220402834 U CN 201220402834U CN 202824985 U CN202824985 U CN 202824985U
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CN
China
Prior art keywords
knife bar
blade
welding
feeding device
welding wire
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.)
Expired - Fee Related
Application number
CN 201220402834
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Chinese (zh)
Inventor
董金堂
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.)
DONGGUAN ZHUOLE PRECISION MACHINERY TECHNOLOGY Co Ltd
Original Assignee
DONGGUAN ZHUOLE PRECISION MACHINERY TECHNOLOGY Co Ltd
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Filing date
Publication date
Application filed by DONGGUAN ZHUOLE PRECISION MACHINERY TECHNOLOGY Co Ltd filed Critical DONGGUAN ZHUOLE PRECISION MACHINERY TECHNOLOGY Co Ltd
Priority to CN 201220402834 priority Critical patent/CN202824985U/en
Application granted granted Critical
Publication of CN202824985U publication Critical patent/CN202824985U/en
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Abstract

The utility model discloses a fully automatic bit alloy welding machine in the technical field of mechanical welding equipment. The fully automatic bit alloy welding machine comprises a rack. The rack is provided with an electrode welding part, a blade automatic supply part, a cutter bar automatic supply part and a welding wire automatic supply part. The cutter bar automatic supply part comprises a cutter bar feed device, a cutter bar transporting device and a cutter bar delivering device in sequence; the blade automatic supply part comprises a blade feed device, a blade transporting device and a blade delivering device in sequence; The welding wire automatic supply part comprises a welding wire delivering device; the cutter bar delivering device delivers the cutter bar to the position of electrode welding, the blade delivering device delivers the blade to electrode welding to position the blade in the welding position and perform the welding through the electrode welding together with the welding wire delivered by the welding wire delivering device, therefore the fully automatic delivering and welding can be realized, and the welding quality and welding efficiency are improved, the welding cost is lowered and the workers' labor intensity is reduced.

Description

Full-automatic drill bit gold alloy solder picks
Technical field
The utility model relates to mechanical technical field of welding equipment, relates in particular to a kind of full-automatic drill bit gold alloy solder and picks.
Background technology
The knife bar that it is cylindricality that drill bit generally has a basic overall shape, its end is fixed with blade, the general straight welding groove of top end face that is provided with in the end of knife bar, cutter spindle also is provided with the several helical flutes of work to edge, and the drilling cuttings (powder) that forms when being used for boring is transported to the head workspace and has holed an eye outside.Generally be blade to be bonded to that wherein brazing is the most commonly used on the end of knife bar by soldering or brazing, in drill bit assembly was made, blade was in place with respect to knife bar, and carries out as required braze operation or other operations subsequently.
Existing drill bit generally is to adopt manual welding, easily cause the axiality of blade and knife bar welding poor, welding quality is unstable, welding cost is high, at the bottom of the welding efficiency, therefore, needing the full-automatic drill bit gold alloy solder that a kind ofly can improve welding quality and welding efficiency, reduction welding cost, alleviate worker's labour intensity badly picks.
The utility model content
The purpose of this utility model is to provide a kind of full-automatic drill bit gold alloy solder to pick, and it can improve welding quality and welding efficiency, reduction welding cost, alleviate worker's labour intensity.
For achieving the above object, the technical solution of the utility model is for providing a kind of full-automatic drill bit gold alloy solder to pick, include frame, frame is provided with for the welding electrode with blade and knife bar welding, the automatic supply portion of blade, the automatic supply portion of knife bar, the automatic supply portion of welding wire, the automatic supply portion of knife bar includes successively provides the knife bar of knife bar raw material feeding device, the knife bar feeding device that the knife bar of knife bar feeding device is carried and the knife bar pay-off of the knife bar of knife bar feeding device being delivered to the welding electrode place, the automatic supply portion of blade includes successively provides the blade of blade raw material feeding device, the blade feeding device that the blade of blade feeding device is carried and the blade pay-off of the blade of blade feeding device being delivered to the welding electrode place, the automatic supply portion of welding wire comprises the welding wire pay-off of welding wire being delivered to the welding electrode place, the knife bar pay-off is delivered to the welding electrode place with knife bar, the blade pay-off is delivered to the welding electrode place with blade makes blade be positioned at the place, welding position of this knife bar, and utilize welding electrode to weld with the welding wire of being sent here by the welding wire pay-off, so can realize full-automatic material-feeding and welding.
Preferably, described blade feeding device is the charging tray that shakes, and the output of the described charging tray that shakes is connected with described blade feeding device.
Preferably, described blade pay-off is cylinder, and the blade pay-off is positioned at the output of blade feeding device, and the output of blade pay-off is towards welding electrode.
Preferably, described knife bar feeding device includes hopper, be fixed on pan feeding motor on the material bin, by the motor-driven material toggling piece of pan feeding, the output of pan feeding motor connects the material toggling piece, described material toggling piece is positioned at the exit of material bin, and the outlet of material bin is positioned at the top of knife bar feeding device input.
Preferably, slide in the described material bin and be provided with the adjusting dividing plate, regulate between dividing plate and the material bin being in transmission connection by adjusting screw(rod).
Preferably, described knife bar feeding device comprises and laterally is slidingly arranged in entering bin, be fixed on pan feeding cylinder on the frame, vertically be slidingly arranged in discharge rack on the frame, be fixed on the discharging cylinder on the frame on the frame, enter to offer respectively the groove that gets stuck on bin and the discharge rack, an end that enters bin stretches in the discharge rack.
Preferably, the output of described knife bar feeding device be provided with for to the dope head of knife bar prefluxing, be fixed on the coating cylinder on the knife bar feeding device, dope head is positioned at the position near knife rod head, the output of coating cylinder connects dope head, dope head inside offers the conveying passage, and the conveying passage connects the head of dope head, and dope head is provided with the pan feeding joint with the conveying channel connection, frame is provided with the scaling powder charging basket, and the output of scaling powder charging basket connects the pan feeding joint by pipeline.
Preferably, described knife bar pay-off comprises the clamping manipulator for the clamping knife bar, clamping manipulator is connected on the frame by mobile conveying mechanism, mobile conveying mechanism comprises cross slide, be fixed on horizontal drive motor on the cross slide, vertically slide, be fixed on the vertical drive motor on vertical slide, vertically slide longitudinally is slidingly connected on the frame, vertical drive motor drives by transmission mechanism and connects vertical slide, cross slide is along laterally being slidingly connected on vertical slide, and horizontal drive motor drives by transmission mechanism and connects cross slide.
Preferably, described cross slide is provided with the knife bar automatic correction device, the knife bar automatic correction device comprises that the driving knife bar rotates the correction rotary actuation cover of proper angle, is fixed on the correcting motor on the cross slide, and the output of correcting motor connects proofreaies and correct the rotary actuation cover.
Preferably, described welding wire pay-off comprises the welding wire cradle that is fixed on the frame, be fixed on welding wire motor on the welding wire cradle, rotate the pinch roller that is arranged on the welding wire cradle, with the welding wire rotating shaft of the mutual roll extrusion of pinch roller, the output of welding wire motor connects the welding wire rotating shaft.
Compared with prior art, the utility model includes frame, frame is provided with for welding electrode, the automatic supply portion of blade, the automatic supply portion of knife bar, the automatic supply portion of welding wire, the automatic supply portion of knife bar includes the knife bar feeding device successively, knife bar feeding device and knife bar pay-off, the automatic supply portion of blade includes the blade feeding device successively, blade feeding device and blade pay-off, the automatic supply portion of welding wire comprises the welding wire pay-off, the knife bar pay-off is delivered to the welding electrode place with knife bar, the blade pay-off is delivered to the welding electrode place with blade makes blade be positioned at the place, welding position of this knife bar, and utilize welding electrode to weld with the welding wire of being sent here by the welding wire pay-off, so can realize full-automatic material-feeding and welding, can improve welding quality and welding efficiency, reduce welding cost, alleviate worker's labour intensity.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the structural representation of the utility model welding electrode.
Fig. 4 is the structural representation of the utility model blade pay-off.
Fig. 5 is the structural representation of the utility model knife bar feeding device.
Fig. 6 is the structural representation of the utility model knife bar feeding device.
Fig. 7 is the structural representation at another visual angle of the utility model knife bar feeding device.
Fig. 8 is the structural representation of the utility model knife bar pay-off.
Fig. 9 is the structural representation of the utility model knife bar automatic correction device.
Figure 10 is the structural representation of the utility model welding wire pay-off.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
Please refer to shown in Fig. 1~10, a kind of full-automatic drill bit gold alloy solder that the utility model provides picks, include frame 1, frame 1 is provided with for the welding electrode 10 with blade and knife bar welding, the automatic supply portion of blade, the automatic supply portion of knife bar, the automatic supply portion of welding wire, receiving hopper 11, electric cabinet, the automatic supply portion of knife bar includes successively provides the knife bar of knife bar raw material feeding device 2, the knife bar feeding device 3 that the knife bar of knife bar feeding device 2 is carried and the knife bar pay-off 4 of the knife bar of knife bar feeding device 3 being delivered to welding electrode 10 places, the automatic supply portion of blade includes successively provides the blade of blade raw material feeding device 5, the blade feeding device 6 that the blade of blade feeding device 5 is carried and the blade pay-off 7 of the blade of blade feeding device 6 being delivered to welding electrode 10 places, the automatic supply portion of welding wire comprises the welding wire pay-off 8 of welding wire being delivered to welding electrode 10 places, knife bar pay-off 4 is delivered to welding electrode 10 places with knife bar, blade pay-off 7 is delivered to welding electrode 10 places with blade makes blade be positioned at the place, welding position of this knife bar, and utilize welding electrode 10 to weld with the welding wire of being sent here by welding wire pay-off 8, workpiece after the welding is delivered to receiving hopper 11 by knife bar pay-off 4, so can realize full-automatic material-feeding and welding, can improve welding quality and welding efficiency, reduce welding cost, alleviate worker's labour intensity.
Knife bar pay-off 4 is at welding electrode 10 rears, and blade pay-off 7 makes things convenient for the location of blade and knife bar in welding electrode 10 the place aheads.Welding electrode 10 is induction coil, and induction coil connects high frequency electric source 101(as shown in Figure 3), knife bar and blade are finished welding in induction coil, and high frequency electric source 101 produces heat and makes knife bar and blade finish welding to the large electric current of induction coil output high frequency.High frequency electric source 101 is connected on the frame 1 by three shaft transmission systems 102 with welding electrode 10, position that can comprehensive free adjustment welding electrode 10.
Blade feeding device 5 is the charging tray that shakes, and blade feeding device 6 is the guide passage of groove shape, and the output of the charging tray that shakes is connected with described blade feeding device 6, utilizes the charging tray that shakes automatically to transfer out with the blade correcting and through blade feeding device 6, and is simple in structure.
As shown in Figure 4, blade pay-off 7 is cylinder, blade pay-off 7 is positioned at the output of blade feeding device 6, the output of blade pay-off 7 is towards welding electrode 10, blade pay-off 7 can be automatically be pushed to welding electrode 10 places with the blade of the output of blade feeding device 6, and action fast, steadily.
As shown in Figure 5, the material toggling piece 23 that knife bar feeding device 2 includes hopper 21, be fixed on pan feeding motor 22 on the material bin 21, driven by pan feeding motor 22, material toggling piece 23 is sector structure, the output of pan feeding motor 22 connects material toggling piece 23, described material toggling piece 23 is positioned at the exit of material bin 21, the outlet of material bin 21 is positioned at the top of knife bar feeding device 3 inputs, material toggling piece 23 rotates and once just can drive a knife bar and fall to knife bar feeding device 3 inputs by the outlet of material bin 21, so that knife bar can be in an orderly manner to knife bar feeding device 3 conveyings.Slide in the material bin 21 to be provided with and regulate dividing plate 24, regulate between dividing plate 24 and the material bin 21 being in transmission connection by adjusting screw(rod) 25, regulate dividing plate 24 can be regulated material bin 21 inner spaces by adjusting screw(rod) 25 length, can be fit to the knife bar of different size.
Shown in Fig. 6 and 7, knife bar feeding device 3 comprises laterally being slidingly arranged in and enters bin 31 on the frame 1, be fixed on the pan feeding cylinder 32 on the frame 1, vertically be slidingly arranged in the discharge rack 33 on the frame 1, be fixed on the discharging cylinder 34 on the frame 1, enter on bin 31 and the discharge rack 33 and offer respectively the groove 35 that gets stuck, an end that enters bin 31 stretches in the discharge rack 33, pan feeding cylinder 32 can promote laterally to slide into bin 31, discharging cylinder 34 can promote discharge rack 33 and vertically slide, and the vertical slip combination of the horizontal slip by entering bin 31 and discharge rack 33 can be carried out feeding automatically.Enter on bin 31 and the discharge rack 33 width adjustment mechanism 30 is set respectively, regulate the width of bin 31 and discharge rack 33 blowings, applied widely.
The output of knife bar feeding device 3 is provided with for the dope head 36 to the knife bar prefluxing, be fixed on the coating cylinder 37 on the knife bar feeding device 3, dope head 36 is positioned at the position near knife rod head, the output of coating cylinder 37 connects dope head 36, dope head 36 inside offer the conveying passage, the conveying passage connects the head of dope head 36, dope head 36 is provided with the pan feeding joint 38 with the conveying channel connection, frame 1 is provided with scaling powder charging basket 39, the output of scaling powder charging basket 39 connects pan feeding joint 38 by pipeline, dope head 36 can be from the weld part prefluxing of trend knife bar, and is simple in structure.
Knife bar pay-off 4 comprises the clamping manipulator 41 for the clamping knife bar, clamping manipulator 41 is connected on the frame 1 by mobile conveying mechanism, mobile conveying mechanism comprises cross slide 42, be fixed on the horizontal drive motor 43 on the cross slide 42, vertical slide 44, be fixed on the vertical drive motor 45 on vertical slide 44, vertically slide 44 longitudinally is slidingly connected on the frame 1, vertical drive motor 45 drives by rack gear and connects vertical slide 44, cross slide 42 is along laterally being slidingly connected on vertical slide 44, and horizontal drive motor 43 drives by rack gear and connects cross slide 42.Mobile conveying mechanism can drive clamping manipulator 41 transverse shiftings and vertically move, under the drive of mobile conveying mechanism, clamping manipulator 41 is first with the knife bar clamping of knife bar feeding device 3 outputs and laterally move to welding electrode 10 rears, then move forward knife bar is sent in the welding electrode 10, knife bar after clamping manipulator 41 transverse shiftings will weld after welding is finished is transplanted in the receiving hopper 11, by the linking that knife bar pay-off 4 is realized between a plurality of stations, flexible operation.
Cross slide 42 is provided with knife bar automatic correction device 9, knife bar automatic correction device 9 comprises the correction rotary actuation cover 91 that drives knife bar rotation proper angle, be fixed on the correcting motor 92 on the cross slide 42, the output of correcting motor 92 connects proofreaies and correct rotary actuation cover 91, the correction rotary actuation overlaps 91 inboards and is provided with location hoodle 93, the peripheral surface of knife bar afterbody offers locating slot 94, after the knife bar afterbody inserts and proofreaies and correct rotary actuation cover 91, correcting motor 92 drives proofreaies and correct 91 rotations of rotary actuation cover, before location hoodle 93 is engaged to locating slot 94, correction rotary actuation cover 91 can't drive knife bar and rotate together, proofread and correct the 91 continuation rotations of rotary actuation cover and look for the position until location hoodle 93 is engaged to finish in the locating slot 94, at this moment knife bar is followed under the effect of location hoodle 93 and is proofreaied and correct together rotation of rotary actuation cover 91, then proofreading and correct rotary actuation cover 91 rotates certain angle again knife bar is proofreaied and correct, knife bar automatic correction device 9 utilizes location hoodle 93 to look for first the position, proofread and correct again, simple in structure, it is convenient to proofread and correct.After clamping manipulator 41 moves to knife bar feeding device 3 outputs, coating cylinder 37 drives dope head 36 and moves to knife bar, when if dope head 35 can't stretch into the weld part prefluxing of knife bar, utilize knife bar automatic correction device 9 that knife bar is rotated suitable angle correct this moment, then dope head 36 is from the weld part prefluxing of trend knife bar, and clamping manipulator 41 is delivered to knife bar welding electrode 10 places again.
Welding wire pay-off 8 comprises the welding wire cradle 81 that is fixed on the frame 1, be fixed on welding wire motor 82 on the welding wire cradle 81, rotate the pinch roller 83 that is arranged on the welding wire cradle 81, with the welding wire rotating shaft 84 of pinch roller 83 mutual roll extrusion, the output of welding wire motor 82 connects welding wire rotating shaft 84, welding wire passes between pinch roller 83 and welding wire rotating shaft 84, automatically welding wire is transferred out by the roll extrusion effect of pinch roller 83 with welding wire rotating shaft 84, simple in structure.Pay-off also comprise welding wire feed point 85, can be multi-faceted and the linkage 86 of multi-angle activity, can be with the lockable mechanism 87 of linkage 86 lockings, deliver to welding electrode 10 from the welding wire of sending between pinch roller 83 and the welding wire rotating shaft 84 through welding wire feed point 85, welding wire feed point 85 is connected on the frame 1 by linkage 86, so that welding wire feed point 85 can multi-facetedly adjust the angle that material level is put with multi-angle, easy to use, welding wire feed point 85 is fixed linkage 86 lockings by lockable mechanism 87 after regulating and putting in place.
Above disclosed only is preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim still belongs to the scope that the utility model is contained.

Claims (10)

1. a full-automatic drill bit gold alloy solder picks, it is characterized in that: include frame, frame is provided with for the welding electrode with blade and knife bar welding, the automatic supply portion of blade, the automatic supply portion of knife bar, the automatic supply portion of welding wire, the automatic supply portion of knife bar includes successively provides the knife bar of knife bar raw material feeding device, the knife bar feeding device that the knife bar of knife bar feeding device is carried and the knife bar pay-off of the knife bar of knife bar feeding device being delivered to the welding electrode place, the automatic supply portion of blade includes successively provides the blade of blade raw material feeding device, the blade feeding device that the blade of blade feeding device is carried and the blade pay-off of the blade of blade feeding device being delivered to the welding electrode place, the automatic supply portion of welding wire comprises the welding wire pay-off of welding wire being delivered to the welding electrode place, the knife bar pay-off is delivered to the welding electrode place with knife bar, the blade pay-off is delivered to the welding electrode place with blade makes blade be positioned at the welding position place of this knife bar, and utilizes welding electrode to weld with the welding wire of being sent here by the welding wire pay-off.
2. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, and it is characterized in that: described blade feeding device is the charging tray that shakes, and the output of the described charging tray that shakes is connected with described blade feeding device.
3. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: described blade pay-off is cylinder, described blade pay-off is positioned at the output of described blade feeding device, and the output of described blade pay-off is towards described welding electrode.
4. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: described knife bar feeding device includes hopper, be fixed on pan feeding motor on the described material bin, by the motor-driven material toggling piece of described pan feeding, the output of described pan feeding motor connects described material toggling piece, described material toggling piece is positioned at the exit of described material bin, and the outlet of described material bin is positioned at the top of described knife bar feeding device input.
5. full-automatic drill bit gold alloy solder as claimed in claim 4 picks, and it is characterized in that: sliding in the described material bin is provided with the adjusting dividing plate, is in transmission connection by adjusting screw(rod) between described adjusting dividing plate and the described material bin.
6. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: described knife bar feeding device comprises and laterally is slidingly arranged in entering bin, be fixed on pan feeding cylinder on the described frame, vertically be slidingly arranged in discharge rack on the described frame, be fixed on the discharging cylinder on the described frame on the described frame, describedly enter on bin and the described discharge rack to offer respectively the groove that gets stuck, a described end that enters bin stretches in the described discharge rack.
7. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: the output of described knife bar feeding device is provided with for the dope head to the knife bar prefluxing, be fixed on the coating cylinder on the described knife bar feeding device, described dope head is positioned at the position near knife rod head, the output of described coating cylinder connects described dope head, described dope head inside offers the conveying passage, described conveying passage connects the head of dope head, described dope head is provided with the pan feeding joint with described conveying channel connection, described frame is provided with the scaling powder charging basket, and the output of described scaling powder charging basket connects described pan feeding joint by pipeline.
8. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: described knife bar pay-off comprises the clamping manipulator for the clamping knife bar, described clamping manipulator is connected on the described frame by mobile conveying mechanism, described mobile conveying mechanism comprises cross slide, be fixed on the horizontal drive motor on the described cross slide, vertical slide, be fixed on the vertical drive motor on described vertical slide, described vertical slide longitudinally is slidingly connected on the frame, vertical drive motor drives by transmission mechanism and connects vertical slide, described cross slide is along laterally being slidingly connected on described vertical slide, and described horizontal drive motor drives by transmission mechanism and connects described cross slide.
9. full-automatic drill bit gold alloy solder as claimed in claim 8 picks, it is characterized in that: described cross slide is provided with the knife bar automatic correction device, described knife bar automatic correction device comprises that the driving knife bar rotates the correction rotary actuation cover of proper angle, is fixed on the correcting motor on the described cross slide, and the output of described correcting motor connects described correction rotary actuation cover.
10. full-automatic drill bit gold alloy solder as claimed in claim 1 picks, it is characterized in that: described welding wire pay-off comprises the welding wire cradle that is fixed on the described frame, be fixed on welding wire motor on the described welding wire cradle, rotate the pinch roller that is arranged on the described welding wire cradle, with the welding wire rotating shaft of the mutual roll extrusion of described pinch roller, the output of described welding wire motor connects described welding wire rotating shaft.
CN 201220402834 2012-08-14 2012-08-14 Fully automatic bit alloy welding machine Expired - Fee Related CN202824985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220402834 CN202824985U (en) 2012-08-14 2012-08-14 Fully automatic bit alloy welding machine

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Application Number Priority Date Filing Date Title
CN 201220402834 CN202824985U (en) 2012-08-14 2012-08-14 Fully automatic bit alloy welding machine

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CN202824985U true CN202824985U (en) 2013-03-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773601A (en) * 2012-08-14 2012-11-14 东莞市卓乐精密机械科技有限公司 Full-automatic drill alloy welding machine
CN104607854A (en) * 2014-12-31 2015-05-13 中国地质大学(武汉) Automatic welding device used for PDC anchor bolt drilling bit
CN105397257A (en) * 2015-12-09 2016-03-16 金焊机械(太仓)有限公司 Efficient automatic spot-weld machine and operating method thereof
CN106695177A (en) * 2015-07-13 2017-05-24 温岭市圣方工具有限公司 Alloy tool bit pushing device used for fully-automatic welding machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773601A (en) * 2012-08-14 2012-11-14 东莞市卓乐精密机械科技有限公司 Full-automatic drill alloy welding machine
CN104607854A (en) * 2014-12-31 2015-05-13 中国地质大学(武汉) Automatic welding device used for PDC anchor bolt drilling bit
CN104607854B (en) * 2014-12-31 2016-03-02 中国地质大学(武汉) A kind of automatic soldering device for PDC anchor bit
CN106695177A (en) * 2015-07-13 2017-05-24 温岭市圣方工具有限公司 Alloy tool bit pushing device used for fully-automatic welding machine
CN105397257A (en) * 2015-12-09 2016-03-16 金焊机械(太仓)有限公司 Efficient automatic spot-weld machine and operating method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130327

Termination date: 20140814

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