CN103008764A - Connecting rod expanding-cracking lathe - Google Patents
Connecting rod expanding-cracking lathe Download PDFInfo
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- CN103008764A CN103008764A CN2011102830910A CN201110283091A CN103008764A CN 103008764 A CN103008764 A CN 103008764A CN 2011102830910 A CN2011102830910 A CN 2011102830910A CN 201110283091 A CN201110283091 A CN 201110283091A CN 103008764 A CN103008764 A CN 103008764A
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Abstract
The invention discloses a connecting rod expanding-cracking lathe, comprising a transmission chain, an expanding-cracking assembly, a bolt screwing assembly and a bush pressing assembly, wherein the expanding-cracking assembly, the bolt screwing assembly and the bush pressing assembly are sequentially located on a transmission journey of the transmission chain. According to the connecting rod expanding-cracking lathe provided by the invention, a combination face of a rod body and a connecting rod cover is in an entirely engaged staggered structure through a connecting rod separating face expanding-cracking process, so that the combination quality of the combination face is improved, the combination face has no need of being machined, and procedures of broaching, grinding and the like of a separating face can be eliminated; and meanwhile, the structural design of a bolt hole of the connecting rod and a whole body machining process further can be simplified, and the requirement on machining precision of the bolt hole can be reduced.
Description
Technical field
The present invention relates to a kind of connecting rod cracking machine tool.
Background technology
Engine is the heart of automobile, and connecting rod bears very high periodic shock power, inertia force and bending force in the course of the work as the important spare part of engine, and the workmanship of connecting rod directly has influence on the Performance And Reliability of engine.According to traditional Machining of Connecting Rod technique, its process is generally: cut off first gonnecting rod body, then with the faying face that mills, draws, the method such as mill is processed respectively gonnecting rod body and connecting rod cap, next roughing and semifinishing gonnecting rod body, big end hole, microcephaly hole, follow the dowel hole of fine finishining connecting rod cap and the bolt hole of gonnecting rod body, assemble at last gonnecting rod body and connecting rod cap, the big end hole of fine finishining connecting rod and microcephaly hole.Above-mentioned technique is not difficult to find out traditional Machining of Connecting Rod complex process, the faying face of gonnecting rod body and connecting rod cap does not have the fully cross structure of engagement, therefore the bond quality of faying face is not high, need to carry out the operations such as the broaching of faying face and grinding, therefore, be badly in need of wanting a kind of mesh degree that can improve gonnecting rod body and connecting rod cap, to improve the device of faying face quality.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of mesh degree that can improve gonnecting rod body and connecting rod cap, with raising faying face quality, and realizes connecting rod cracking, assembling function in the connecting rod cracking machine tool of one, and its concrete scheme is as follows:
A kind of connecting rod cracking machine tool comprises carrier chain, and described carrier chain is provided with the pallet grippers for the stationary links workpiece, and described carrier chain is used for the transmission of connecting rod workpiece; Also comprise the disconnected assembly that rises that is positioned at successively on the carrier chain transmission stroke, the described disconnected assembly that rises comprises punch driving device, the output of described punch driving device is provided with the off-axis that rises, the front end of the described off-axis that rises is wedge shape, also be provided with the wedge group on the punching stroke of the described off-axis that rises, described wedge group is positioned at the big end hole of connecting rod workpiece, the punching stroke end of the described off-axis that rises is provided with the anti-support of major part and microcephaly's hole positioning device, and the anti-support of described major part and described microcephaly's hole positioning device are located at respectively major part nose end and microcephaly's nose end of connecting rod workpiece;
And bolt tightening assembly, comprise carrier pipe, the output of described carrier pipe is provided with the gravity baffle plate, described gravity baffle plate is articulated in the top of the output of described carrier pipe, output at described carrier pipe is provided with clamping head, and described clamping head is relative with the connecting rod unthreaded hole of connecting rod workpiece, also is provided with at described clamping head place and tightens axle, the described axle of tightening is connected with sliding driving device, and the described axle of tightening is rotated by driven by servomotor;
And bushing press-mounting assembly, comprise last item, described last item is connected with the first mobile drive deivce, and the moving direction of described last item is corresponding with the microcephaly hole of connecting rod workpiece, place, microcephaly hole at connecting rod is provided with microcephaly hole guiding mechanism, and the big end hole place of connecting rod is provided with the floating guiding pin.
Preferably, also be provided with the material toggling assembly on the delivery stroke of described carrier chain, comprise shifting block, material toggling pawl; Described shifting block is connected with the second mobile drive deivce, and described shifting block and described material toggling pawl are hinged; The homonymy of described shifting block and described material toggling pawl also is provided with one for the baffle plate that limits described material toggling pawl rotational angle.
Preferably, described pallet grippers comprises base plate, the first limited block group, the second limited block group; Described the first limited block group and base plate are affixed, described the second limited block group is connected with a carriage with unsteady stroke, and described the first limited block group and described the second limited block group are located at respectively major part nose end, microcephaly's nose end of connecting rod workpiece the connecting rod piece-holder is fixed.
Preferably, the described disconnected assembly that rises also comprises spring, and an end of described spring is fixed, and the other end of described spring is connected with described wedge group.
Preferably, the described disconnected assembly that rises also comprises unloading mechanism, and described unloading mechanism and the described off-axis that rises are positioned at the homonymy of described connecting rod workpiece.
Preferably, described bolt tightening assembly is the involving vibrations dish also, and the discharging opening of described vibrating disk is communicated with described carrier pipe.
Preferably, described bushing press-mounting assembly also comprises scraping wings and approach switch; Described scraping wings is connected with the 3rd mobile drive deivce, and described the 3rd mobile drive deivce is electrically connected with described approach switch, and described approach switch detects the relative position of connecting rod workpiece and described last item, and transmits control signal to described the 3rd drive unit.
Preferably, the last item of described bushing press-mounting assembly is provided with plural piece shell fragment, and an end of described shell fragment is connected with described last item, and described shell fragment circularizes setting along described last item periphery.
Preferably, the transmission end of travel of described carrier chain also is provided with the finishing assembly, comprises the finishing axle, and described finishing axle is connected with the 4th mobile drive deivce, the moving direction of described finishing axle is corresponding with the microcephaly hole of connecting rod workpiece, is provided with the extrusion ring at the front end of described finishing axle.
Preferably, the quantity of described extrusion ring is more than 1 road, and the external diameter of described extrusion ring is increased to the rear end gradually by finishing axle leading portion.
Connecting rod cracking machine tool provided by the invention, the rise breaking process processing of connecting rod parting surface makes the faying face of gonnecting rod body and connecting rod cap have the fully cross structure of engagement, improve the bond quality of faying face, do not needed to carry out the processing of faying face, saved the operations such as the broaching of parting surface and grinding; Also simplify simultaneously structural design and the integral processing of connecting rod bolt holes, reduced the requirement on machining accuracy of bolt hole.In addition, also improved the big end hole distortion of connecting rod ASSY, connecting rod bearing capacity, shear resistance and assembly quality are increased substantially.Therefore the imbody that shows the economic benefit aspect is exactly the advantages such as manufacturing procedure is few, machine tool small investment, occupation area of equipment is little, the cutter expense is few, the saving energy, product quality is high, production cost is low.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of to improper restriction of the present invention, in the accompanying drawings:
Fig. 1 is the embodiment of the invention disconnected modular construction schematic diagram that rises;
Fig. 2 is embodiment of the invention bolt tightening assembly generalized section;
Fig. 3 is embodiment of the invention bolt tightening modular construction schematic diagram;
Fig. 4 is embodiment of the invention bushing press-mounting modular construction schematic diagram;
Fig. 5 is embodiment of the invention material toggling modular construction schematic diagram;
Fig. 6 is embodiment of the invention last item structural representation;
Fig. 7 is embodiment of the invention finishing modular construction schematic diagram;
Fig. 8 is embodiment of the invention finishing axle construction schematic diagram;
Fig. 9 is embodiment of the invention pallet grippers structural representation.
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment
Such as Fig. 1～shown in Figure 9, connecting rod cracking machine tool comprises
Carrier chain, carrier chain is the chain for the connecting rod workpiece transfer, carrier chain is provided with the pallet grippers 9 for the stationary links workpiece, stop gauge is installed on the carrier chain, make things convenient for the artificial feeding, discharge of connecting rod, in connecting rod material loading position the machine recognition device is installed also and workpiece has or not checkout gear, after the machine identification, equipment can be protected equipment by the chain control of PLC and the crucial frock clamp such as the broken end that rises is not damaged;
As preferred version, pallet grippers 9 comprises base plate 91, the first limited block group 92, the second limited block group 93; The first limited block group 92 is affixed with base plate 91, the second limited block group 93 is connected with a carriage with unsteady stroke, wherein as preferred version, carriage comprises the contiguous block 94 that is fixed in respectively base plate 91 both sides, on two contiguous blocks 94, be interspersed with respectively the axis of guide 95, contiguous block 94 is connected by elastic component elasticity with the axis of guide 95 that interts on it, be connected with a plate 96 between two axis of guides 95, the second limited block group 93 is affixed with connecting plate 96, the first limited block group 92 and the second limited block group 93 are located at respectively the major part nose end of connecting rod workpiece, microcephaly's nose end is fixed the connecting rod piece-holder, and the second limited block group 93 has unsteady stroke at microcephaly's nose end, to adapt to the connecting rod workpiece of different size, pallet grippers 9 is indicated pallet grippers 9 corresponding workpiece with label, is used for manual identified; Also with the procedure identification feature, can identify concrete pallet grippers 9 models on the pallet grippers 9, can carry out matching check to pallet grippers 9 and program, system can identify and report to the police automatically when the workpiece model is put back and misplaced to pallet grippers 9 mistake in usings or direction; Part easy to wear on the pallet grippers 9 carries out the treatment process such as carburizing, quenching, chromium plating, guarantees the service life of pallet grippers 9;
Also comprise and being positioned at successively on the carrier chain transmission stroke
Disconnected assembly 1 rises, the disconnected assembly 1 that rises comprises the punch driving device 101 with hydraulic oil cylinder driving, the output of punch driving device 101 is provided with the off-axis 102 that rises, the front end of off-axis 102 of rising is wedge shape, rise and also be provided with wedge group 103 on the punching stroke of off-axis 102, wedge group 103 is positioned at the big end hole of connecting rod workpiece, the punching stroke end of off-axis 102 of rising is provided with that major part is anti-to support 104 and microcephaly's hole positioning device 105, the anti-support 104 of major part and microcephaly's hole positioning device 105 are located at respectively major part nose end and microcephaly's nose end of connecting rod workpiece, the disconnected assembly 1 replaceable off-axis 102 that rises that wherein rises possessing the adaptive capacity in the disconnected 40-60mm aperture of rising; The off-axis 102 that rises carries out intensive treatment, and the contact site case hardness is greater than HRC60, and hardened depth should be greater than 0.8mm; Rise by off-axis 102 with the procedure identification feature, equipment can be identified the concrete broken end model that rises, system can carry out matching check with procedure Selection to the off-axis 102 that rises, find not report to the police when not mating, rise disconnected before, major part is anti-to be supported 104 front ends and stretches out back-up block and prop up crank pin end pore, and microcephaly's hole positioning device 105 limits the microcephaly hole, and the connecting rod that prevents from rising when disconnected is jumped out pallet grippers 9;
Bushing press-mounting assembly 3, comprise last item 301, last item 301 is connected with the first mobile drive deivce 302, the moving direction of last item 301 is corresponding with the microcephaly hole of connecting rod workpiece, place, microcephaly hole at connecting rod is provided with microcephaly hole guiding mechanism 303, microcephaly hole guiding mechanism 303 comprises a pilot pin, the internal diameter coupling in the radius of pilot pin and connecting rod workpiece microcephaly hole, also comprise a unsteady pilot pin 304, the pilot pin 304 that floats is positioned at the big end hole place of connecting rod, the radius of unsteady pilot pin 304 and the big end hole internal diameter of connecting rod coupling, and unsteady pilot pin 304 is connected with the first mobile drive deivce 302, the big end hole of unsteady 304 pairs of connecting rods of pilot pin positions when the first mobile drive deivce 302 presses down, bushing press-mounting assembly 3 is provided with pressure and displacement transducer, in the bushing press-mounting process, can monitor pressure, to maximum, minimum pressure carries out SPC statistics, and has and press-fit defective warning function; Bushing press-mounting assembly 3 replaceable last items 301, possess the bushing press-mounting adaptive capacity of Outer Diameter of lining in the 16-30mm scope, last item 301 is with the procedure identification feature, equipment can be identified concrete last item 301 models, system can carry out matching check to last item 301 and procedure Selection, finds can not report to the police when not mating.
Optionally, also comprise and lift the stepping assembly, adopt hydraulic oil cylinder driving joint hinge to lift, the displacement of hydraulic oil cylinder driving step rate, lift the stepping assembly and be positioned at the operating position of rise disconnected assembly 1, bolt tightening assembly 2, bushing press-mounting assembly 3, finishing assembly, lift stepping mechanism after mobile pallet anchor clamps 9 are taken a seat, whether detection system can accurately take a seat to pallet grippers 9 is confirmed, guarantee that pallet grippers 9 equipment after accurately locating just begins action, prevents the damage of pallet grippers 9 and equipment.
As the improvement of above-described embodiment scheme, also be provided with material toggling assembly 4 on the delivery stroke of carrier chain, comprise shifting block 401, material toggling pawl 402; Shifting block 401 is the bending members that are a right angle, and an end of shifting block 401 is connected with the second mobile drive deivce 403, and the other end of shifting block 401 and material toggling pawl 402 are hinged; Shifting block 401 also is provided with a baffle plate 404 for restriction material toggling pawl 402 rotational angles with the homonymy of material toggling pawl 402, baffle plate 404 is positioned at the hinged place of shifting block 401 and material toggling pawl 402, so that the material toggling pawl 402 limited in rotation systems to baffle plate 404 1 sides, the material toggling assembly 4 of such scheme, the material loading that is carrying out, during blanking, shifting block 401 is driven by the second mobile drive deivce 403, pass through from the top of connecting rod workpiece, material toggling pawl 402 can be unlikely to promote to rotating without a side of baffle plate 404 the connecting rod workpiece, after material toggling assembly 4 is in place, it is oppositely mobile that shifting block 401 is driven by the second mobile drive deivce 403, this moment, material toggling pawl 402 can't rotate because of the restriction of baffle plate 404, thereby the connecting rod workpiece is promoted to shifting block 401 moving directions, realize material loading or blanking, or will dial in from the carrier chain assembly with the pallet component of undressed connecting rod and lift the stepping assembly and will transfer to the carrier chain assembly from lifting the stepping assembly with the pallet component of processing connecting rod; With the carrier chain assembly with lift two parallel interconnections of stepping assembly, form the pallet component induction system of a sealing.
Improvement as above-described embodiment scheme, the disconnected assembly 1 that rises also comprises spring 106, one end of spring 106 is fixed, the other end of spring 106 is connected with wedge group 103, in the present embodiment, an end of spring 106 is fixed, and the other end of spring 106 is connected with a wedge group 103 installing plates 107, these wedge group 103 installing plates 107 are connected with wedge group 103, and wedge group 103 installing plates 107 are used for the installation of wedge group 103.
Improvement as above-described embodiment scheme, the disconnected assembly 1 that rises also comprises unloading mechanism 108, unloading mechanism 108 and the off-axis 102 that rises are positioned at the homonymy of connecting rod workpiece, unloading mechanism 108 has the elastic telescopic function, unloading mechanism 108 off-axis 102 that prevents from rising takes up connecting rod when mentioning, and the elastic telescopic function of itself prevents from the connecting rod workpiece is caused damage.
As the improvement of above-described embodiment scheme, bolt tightening assembly 2 is gone back the involving vibrations dish, and the discharging opening of vibrating disk is communicated with carrier pipe 201.
As the improvement of above-described embodiment scheme, bushing press-mounting assembly 3 also comprises scraping wings 305 and approach switch; Scraping wings 305 is connected with the 3rd mobile drive deivce (not indicating), the 3rd mobile drive deivce is electrically connected with approach switch, approach switch detects the relative position of connecting rod workpiece and last item 301, and transmit control signal to the 3rd drive unit, the 3rd drive unit control scraping wings 305 promotes pallet grippers 9 and aims at last item 301.
Improvement as above-described embodiment scheme, the last item 301 of bushing press-mounting assembly 3 is provided with plural piece 306, one end of shell fragment 306 is connected with last item 301, shell fragment 306 circularizes setting along last item 301 peripheries, between the shell fragment 306 of annular setting, be provided with a pull bar 307, one end of pull bar 307 and shell fragment are conflicted, the other end of pull bar 307 stretches out from last item 301 tops, and pull bar 307 is connected with last item 301 elasticity, so, the annular radius that last item 301 capable of regulating shell fragments 306 form is to adapt to the different model of lining.
Improvement as above-described embodiment scheme, the transmission end of travel of carrier chain also is provided with finishing assembly 5, comprise finishing axle 501, finishing axle 501 is connected with the 4th mobile drive deivce 502, the moving direction of finishing axle 501 is corresponding with the microcephaly hole of connecting rod workpiece, be provided with the extrusion ring 503 that the footpath makes progress at the front end of finishing axle 501, extrusion ring 503 is axially with radially all with certain amount of floating, for automatic correction position deviation; In the lining finishing, can monitor pressure, maximum, minimum and pressure be carried out the SPC statistics, and possess the defective warning function of finishing; Lining finishing assembly 5 replaceable finishing axles 501, possess the lining finishing adaptive capacity of Outer Diameter of lining in the 16-30mm scope, finishing axle 501 is with the procedure identification feature, equipment can be identified concrete finishing axle 501 models, system can carry out matching check to finishing axle 501 and procedure Selection, finds can not report to the police when not mating.
As the improvement of above-described embodiment scheme, the quantity of extrusion ring 503 is more than 1 road, and the external diameter of extrusion ring 503 is increased to the rear end gradually by finishing axle 501 leading portions.
More than technical scheme that the embodiment of the invention is provided be described in detail, used specific case herein principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, all will change on the specific embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. connecting rod cracking machine tool is characterized in that:
Comprise carrier chain, described carrier chain is provided with the pallet grippers for the stationary links workpiece, and described carrier chain is used for the transmission of connecting rod workpiece;
Also comprise and being positioned at successively on the carrier chain transmission stroke
Disconnected assembly rises, the described disconnected assembly that rises comprises punch driving device, the output of described punch driving device is provided with the off-axis that rises, the front end of the described off-axis that rises is wedge shape, also be provided with the wedge group on the punching stroke of the described off-axis that rises, described wedge group is positioned at the big end hole of connecting rod workpiece, and the punching stroke end of the described off-axis that rises is provided with the anti-support of major part and microcephaly's hole positioning device, and the anti-support of described major part and described microcephaly's hole positioning device are located at respectively major part nose end and microcephaly's nose end of connecting rod workpiece;
The bolt tightening assembly, comprise carrier pipe, the output of described carrier pipe is provided with the gravity baffle plate, described gravity baffle plate is articulated in the top of the output of described carrier pipe, output at described carrier pipe is provided with clamping head, and described clamping head is relative with the connecting rod unthreaded hole of connecting rod workpiece, also is provided with at described clamping head place and tightens axle, the described axle of tightening is connected with sliding driving device, and the described axle of tightening is rotated by driven by servomotor;
The bushing press-mounting assembly comprises last item, and described last item is connected with the first mobile drive deivce, and the moving direction of described last item is corresponding with the microcephaly hole of connecting rod workpiece, is provided with microcephaly hole guiding mechanism at the place, microcephaly hole of connecting rod, and the big end hole place of connecting rod is provided with the floating guiding pin.
2. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
Also be provided with the material toggling assembly on the delivery stroke of described carrier chain, comprise shifting block, material toggling pawl;
Described shifting block is connected with the second mobile drive deivce, and described shifting block and described material toggling pawl are hinged;
The homonymy of described shifting block and described material toggling pawl also is provided with one for the baffle plate that limits described material toggling pawl rotational angle.
3. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
Described pallet grippers comprises base plate, the first limited block group, the second limited block group;
Described the first limited block group and base plate are affixed, described the second limited block group is connected with a carriage with unsteady stroke, and described the first limited block group and described the second limited block group are located at respectively major part nose end, microcephaly's nose end of connecting rod workpiece the connecting rod piece-holder is fixed.
4. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
The described disconnected assembly that rises also comprises spring, and an end of described spring is fixed, and the other end of described spring is connected with described wedge group.
5. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
The described disconnected assembly that rises also comprises unloading mechanism, and described unloading mechanism and the described off-axis that rises are positioned at the homonymy of described connecting rod workpiece.
6. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
Described bolt tightening assembly is the involving vibrations dish also, and the discharging opening of described vibrating disk is communicated with described carrier pipe.
7. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
Described bushing press-mounting assembly also comprises scraping wings and approach switch;
Described scraping wings is connected with the 3rd mobile drive deivce, and described the 3rd mobile drive deivce is electrically connected with described approach switch, and described approach switch detects the relative position of connecting rod workpiece and described last item, and transmits control signal to described the 3rd drive unit.
8. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
The last item of described bushing press-mounting assembly is provided with plural piece shell fragment, and an end of described shell fragment is connected with described last item, and described shell fragment circularizes setting along described last item periphery.
9. connecting rod cracking machine tool as claimed in claim 1 is characterized in that:
The transmission end of travel of described carrier chain also is provided with the finishing assembly, comprise the finishing axle, described finishing axle is connected with the 4th mobile drive deivce, and the moving direction of described finishing axle is corresponding with the microcephaly hole of connecting rod workpiece, is provided with the extrusion ring at the front end of described finishing axle.
10. connecting rod cracking machine tool as claimed in claim 9 is characterized in that:
The quantity of described extrusion ring is more than 1 road, and the external diameter of described extrusion ring is increased to the rear end gradually by finishing axle leading portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283091.0A CN103008764B (en) | 2011-09-22 | Connecting rod cracking machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283091.0A CN103008764B (en) | 2011-09-22 | Connecting rod cracking machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103008764A true CN103008764A (en) | 2013-04-03 |
| CN103008764B CN103008764B (en) | 2016-12-14 |
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| CN108296747A (en) * | 2018-03-26 | 2018-07-20 | 广东鸿图南通压铸有限公司 | Special plane and its application method are integrated in a kind of assembly of automobile support multistation |
| CN114571251A (en) * | 2022-03-29 | 2022-06-03 | 安庆职业技术学院 | Full-automatic connecting rod high-quality cracking equipment and cracking method |
| CN115179025A (en) * | 2022-07-13 | 2022-10-14 | 山东鸿成达机电装备有限公司 | Connecting rod slag removal tightening machine, control system and slag removal method |
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| CN115179025A (en) * | 2022-07-13 | 2022-10-14 | 山东鸿成达机电装备有限公司 | Connecting rod slag removal tightening machine, control system and slag removal method |
| CN115179025B (en) * | 2022-07-13 | 2024-04-02 | 山东鸿成达机电装备有限公司 | Connecting rod slag removal tightening machine, control system and slag removal method |
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Address after: Guangzhou City, Panyu District Shi Ji Zhen Yan Zhou Cun Yan Chau Road 510000 in Guangdong Province Patentee after: Guangzhou Keteng intelligent equipment Limited by Share Ltd Address before: Guangzhou City, Panyu District Shi Ji Zhen Yan Zhou Cun Yan Chau Road 511450 in Guangdong Province Patentee before: Guangzhou Fortune Industry Co., Ltd. |
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Denomination of invention: Connecting rod expanding-cracking lathe Effective date of registration: 20170713 Granted publication date: 20161214 Pledgee: Bank of China, Limited by Share Ltd, Guangzhou, Panyu branch Pledgor: Guangzhou Keteng intelligent equipment Limited by Share Ltd Registration number: 2017990000631 |