CN102689140B - Method for processing spring arm - Google Patents
Method for processing spring arm Download PDFInfo
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- CN102689140B CN102689140B CN201210170286.9A CN201210170286A CN102689140B CN 102689140 B CN102689140 B CN 102689140B CN 201210170286 A CN201210170286 A CN 201210170286A CN 102689140 B CN102689140 B CN 102689140B
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Abstract
The invention relates to a method for processing a spring arm. The spring arm is mainly applied to an ink cleaning and recycling device of a high-speed newspaper printing press and comprises a carrying shaft, a connecting arm and an upper arm which are integrally connected. The method includes roughly milling the upper arm and the carrying shaft; then finely milling the carrying shaft; processing an arc-shaped groove; drilling a connecting hole in advance; drilling a threaded bottom hole; milling a clamping surface of the connecting arm; roughly milling an outer-side step; processing the bottom surface of the outer-side step in place; finely processing side surfaces of the step and the outer-side step; drilling a carrying shaft hole in advance; then drilling the carrying shaft hole and the connecting hole; and finally milling a carrying shaft counter bored hole to obtain the finished spring arm. The method has the advantages that production cost is lowered, and production efficiency and reliability of equipment are improved; the processing precision of the carrying shaft hole of the spring arm manufactured by the method can achieve the level 5, and the smoothness of the milled surface of the carrying shaft can achieve Ra0.6; and when the spring arm manufactured by the method is used, the reliability of the integral ink cleaning and recycling device is improved, and operation is simplified.
Description
Technical field
The present invention relates to a kind of processing method of spring arm, this kind of spring arm is mainly applicable to, in high speed newspaper printing press ink clean and reuse device, belong to a vital part on ink cylinder cleaning device on high speed newspaper printing press.
Background technology
At present, high speed newspaper printing press ink clean and reuse device is combined by nearly 80 accessories, and the speed of service of this machine is very fast, the frequency of oscillation of cleaning be 3 times/per second, operating ambient temperature is 200 degree (overvoltage steam).Wherein all very high to the requirement of the material of spring arm, machining accuracy and surface smoothness and hardness, add the reason of installation site, the processing method of existing spring arm is reasonable not, can not meet design accuracy requirement, causes ink in printing press clean and reuse device not work normally.
The traditional diamond-making technique of existing spring arm is as follows: first hair Bear-grudge is carried out to roughing; Heat-treat again; Finally product integral body is carried out to fine finishining.The shortcoming of this processing method is: after heat treatment, produce thermal deformation, machining accuracy is difficult to guarantee; Manufacturing procedure is too much, makes management cost and processing cost high, and efficiency is low.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in prior art, and provides a kind of processing cost low and can guarantee the processing method of the spring arm of required precision.
The present invention solves the problems of the technologies described above adopted technical scheme: the processing method of this spring arm comprises the reach that needs processing is connected, linking arm, reach counterbore, carrying axis hole, connecting hole, thread Pilot hole and upper arm, linking arm is between reach and upper arm, reach counterbore and carrying axis hole are opened on reach and on same axis, connecting hole and thread Pilot hole are opened on upper arm, on upper arm, be provided with the inner side step and the outside step that are parallel to each other, and have deep-slotted chip breaker between this inner side step and outside step, described reach is cylindrical, the processing method of spring arm comprises the steel plate blank of preparing a 75x25x42mm, it is characterized in that: the processing method of above-mentioned spring arm is carried out according to the following steps:
1) described steel plate blank vacuum heat-preserving is quenched, make its hardness reach HR54, then milling reach upper surface blank; To strengthen the mechanical strength of whole workpiece, make it reduce thermal deformation; , consider if processed by conventional procedure of processing from coarse to fine, the uniformity of hair Bear-grudge size is poor meanwhile, so, in this step, select the major diameter milling cutter of High anti bending strength to carry out the upper surface blank of milling reach, to improve working (machining) efficiency.
2) rough mill upper arm, upper arm radially stays the surplus of 0.5mm, and inner side step processing puts in place; It has guaranteed the machining accuracy of upper arm; Meanwhile, inner side step also puts in place in this processing, to complete the processing of this part, saves operation.
3) half finish-milling reach, reach radially stays the surplus of 0.2mm, and the processing of reach bottom surface puts in place; By this processing technology, facilitated the fine finishining of reach, and guaranteed the machining accuracy of reach; Meanwhile, remove reach bottom surface surplus, the impact to point of a knife when preventing right boring reach, guarantees machining accuracy, and this reach bed-plate dimension is less demanding, and now processing puts in place and just can reach the requirement of its machining accuracy.
4) with carbide-tipped milling cutter finish-milling reach, and by compressed air, spray refrigerating gas and carry out cooling to carbide-tipped milling cutter, now reach radially stays the surplus of 0.1mm, and all the other positions of reach all process and put in place, and the surplus of the 0.5mm that upper arm radially stayed also mills at this moment; To reduce accurately machined surplus, ensure machining accuracy.
5) the surplus right boring of the 0.1mm that with cylindrical boring cutter, reach radially stayed is removed, and processes deep-slotted chip breaker with carbide-tipped milling cutter; Make it reach the desired size of design and form and position tolerance; After deep-slotted chip breaker machines, the first manufacturing procedure of this workpiece completes, and proceeds to second manufacturing procedure.
6) with solid carbide drill, bore thread Pilot hole, now with running through machine tool chief axis and drill bit after cooling fluid pressurization, then double thread bottom outlet tapping; To raise the efficiency, extend the service life of cutter.
7) with whole hard alloy screw tap and the power-assisted flat-nose pliers arm that is clamped and connected, and with the clamping face of milling cutter milling linking arm; Guarantee the dimensional accuracy of clamping face; Because the part for fixing hair Bear-grudge is clamping face, in first process, cannot process, so, must, with the clamping face of milling cutter milling linking arm in this procedure, just can complete the processing of whole workpiece.
8) with milling cutter, rough mill outside step, this outside step diameter is to the surplus of staying 0.2mm, and the processing of step bottom surface, outside puts in place; Guaranteed the machining accuracy of outside step; If in first operation, because of the reason of clamping face cannot removing above of side stage rank in addition, the cutting output of cutter is larger, easy to wear, thus working (machining) efficiency affected, therefore should process after clamping face and upper surface removal, now finish-milling cutter only needs 17mm to overhang, and vibrates littlely, and rigidity is strong, processing effect is good, as processed in first operation, cutter needs more than 24mm overhanging, and vibration is large, a little less than rigidity, processing effect is difficult to satisfactory.
9) by solid cemented carbide milling cutter fine finishining step side, and the surplus to stayed 0.2mm mills by outside step diameter, then preboring carrying axis hole, and to reach Hole chamfering.Because outside step has the requirement of surface roughness Ra 1.6, therefore step outside finish-milling here, to guarantee the form and position tolerance of outside step; Because in fine finishining, because chipping allowance is less, the distortion of processing is also just little, easily guarantees machining accuracy; Roughing separates and will be conducive to recovery and the timeliness of distortion with fine finishining.
10) with solid carbide drill, bore carrying axis hole and connecting hole, and with solid cemented carbide milling cutter milling processing reach counterbore, finally form spring arm finished product.To improve working (machining) efficiency, tool life, ensures machining accuracy; For guaranteeing the axiality of reach counterbore and carrying axis hole, must process two holes from the same face, thus must after removing, process clamping face, if processing cannot disposablely complete the processing in two holes in first operation.
The temperature that vacuum heat-preserving of the present invention quenches is between 450 ℃-500 ℃, to guarantee that the hardness of steel plate blank reaches HR54.
Of the present inventionly with solid carbide drill, bore thread Pilot hole, after the pressurization of cooling fluid by 60 kg/cm, run through machine tool chief axis and drill bit, make the temperature of drill bit be down to 30 ℃, to guarantee that machine tool chief axis and drill bit reach maximum cooling effect.
The present invention compared with prior art, has the following advantages and effect: manufacture the rationally distributed of time space, reduced production cost, improved the reliability of production efficiency and equipment; The spring arm of making by this method, the machining accuracy of its carrying axis hole can reach 5 grades, and the fineness of reach surface milling processing can reach Ra 0.6; Meanwhile, the spring arm that uses this method to make, has improved the reliability of whole ink clean and reuse device, and has simplified operation.
Accompanying drawing explanation
Fig. 1 is the structural representation front view of spring arm of the present invention.
Fig. 2 is the structural representation left view of spring arm of the present invention.
Fig. 3 is the structural representation right view of spring arm of the present invention.
Fig. 4 is the structural representation rearview of spring arm of the present invention.
Fig. 5 is the structural representation upward view of spring arm of the present invention.
Fig. 6 is the structural representation top view of spring arm of the present invention.
Fig. 7 is the A-A structural representation cutaway view of Fig. 3.
Fig. 8 is the B-B structural representation cutaway view of Fig. 3.
Fig. 9 is work flow block diagram of the present invention.
Figure 10 is structure and the size schematic front view of spring arm finished product of the present invention.
Figure 11 is structure and the size signal left view of spring arm finished product of the present invention.
Figure 12 is structure and the size signal right view of spring arm finished product of the present invention.
Figure 13 is structure and the size diagrammatic rear view of spring arm finished product of the present invention.
In figure: 1 reach, 2 linking arms, 3 reach counterbores, 4 carrying axis holes, 5, deep-slotted chip breaker, 6 connecting holes, 7 thread Pilot holes, 8 upper arm, 9 inner side step, 10 reach upper surfaces, 11 reach bottom surfaces, 12 step side, 13 step bottom surfaces, outside, 14 outside steps, 15 clamping faces.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 1-Fig. 9, spring arm of the present invention is mainly comprised of reach 1, linking arm 2 and upper arm 8, and this reach 1, linking arm 2 and upper arm 8 are connected.
Linking arm 2 of the present invention is between reach 1 and upper arm 8, reach counterbore 3 opens on reach 1 with carrying axis hole 4 and they are on same axis, connecting hole 6 and thread Pilot hole 7 are opened on upper arm 8, on upper arm 8, be provided with the inner side step 9 and the outside step 14 that are parallel to each other, and having deep-slotted chip breaker 5 between this inner side step 9 and outside step 14, described reach 1 is cylindrical.These structures, shape and size size are equal to prior art.
During use, this spring arm is arranged on ink clean and reuse device.Linking arm 2 is wherein for connecting reach 1 and upper arm 8, and reach counterbore 3 and carrying axis hole 4 place's mounting spring, can rotate around load bearing arm 1 spring arm; Upper arm 8 works to stir next workpiece in cleaning vibration, and reach 1 is arranged on the retainer of ink clean and reuse device, and deep-slotted chip breaker 5 is as locating slot, and connecting hole 6 is tightly-hanging holes, can fixing spring arm.
Referring to Fig. 1-Fig. 9, the processing method of above-mentioned spring arm comprises the steel plate blank of preparing a 75x25x42mm, then according to following procedure of processing, carries out:
1) described steel plate blank vacuum heat-preserving is quenched, the temperature that its insulation is quenched reaches 500 ℃ in the present embodiment, makes the hardness of steel plate blank reach HR54, then the blank of milling reach upper surface 10.
2) rough mill upper arm 8, this upper arm 8 radially stays the surplus of 0.5mm, and inner side step 9 processing put in place.
3) with carbide-tipped milling cutter half finish-milling reach 1, reach 1 radially stays the surplus of 0.2mm, and 11 processing of reach bottom surface put in place.
4) with carbide-tipped milling cutter finish-milling reach 1, and by compressed air, spray refrigerating gas and carry out cooling to carbide-tipped milling cutter, now reach 1 radially stays the surplus of 0.1mm, and all the other positions of reach 1 all process and put in place, and the surplus of the 0.5mm that upper arm 8 radially stayed also mills at this moment.
5) the surplus right boring of the 0.1mm that with cylindrical boring cutter, reach 1 radially stayed is removed, and processes deep-slotted chip breaker 5 with carbide-tipped milling cutter, then the connecting hole 6 that drill diameter is 4.3mm in advance, and to connecting hole 6 chamferings.
6) with solid carbide drill, bore the thread Pilot hole 7 of M3, now with running through machine tool chief axis and cutter after cooling fluid pressurization, in the present embodiment, after the pressurization of cooling fluid by 60 kg/cm, run through machine tool chief axis and drill bit, make the temperature of drill bit be down to 30 ℃ of left and right by 460 ℃ of left and right; Double thread bottom outlet 7 tappings again; 460 ℃ of temperature of diamond bit described here refer to: in step 6), while boring the thread Pilot hole 7 of M3, the temperature of drill bit can reach 460 ℃ of left and right, but by being down to 30 ℃ of left and right after the effect of cooling fluid.
7) with whole hard alloy screw tap and the power-assisted flat-nose pliers arm 2 that is clamped and connected, and with the clamping face 15 of milling cutter milling linking arm 2.
8) with milling cutter, rough mill outside step 14, this outside step 14 radially stays the surplus of 0.2mm, and 15 processing of step bottom surface, outside put in place.
9) by solid cemented carbide milling cutter fine finishining step side 12, and the surplus of the 0.2mm that outside step 14 is radially stayed mills, the more pre-drill diameter carrying axis hole 4 that is 3.3mm, and to these carrying axis hole 4 chamferings.
10) with solid carbide drill, bore carrying axis hole 4 and connecting hole 6, and the reach counterbore 3 that is 10mm with solid cemented carbide milling cutter milling processing diameter, spring arm finished product finally formed.
Referring to Figure 10-Figure 13, spring arm finished size of the present invention is as follows: the diameter of phi of reach 1 is 18mm, the length A of reach upper surface 10 is 15mm, the length B of linking arm 2 is 33mm, and the length C of upper arm 8 is 9.6mm, and the width D of inner side step 9 is 14mm, the width E of reach bottom surface 11 is 21mm, the length F of step side 12 is 17mm, and the width G of step bottom surface, outside 13 is 14mm, and the width H of outside step 14 is 9mm.The size of this finished product is same as the prior art or be equal to.
Described " radially " refers to herein: in situation shown in the drawings, and the direction vertical with horizontal plane.
Above content described in this description is only to structure example explanation of the present invention, and all equivalence or simple change of doing according to described structure, feature and the principle of patent design of the present invention, are included in the protection domain of patent of the present invention.
Claims (3)
1. the processing method of a spring arm, comprise the reach that needs processing is connected, linking arm, reach counterbore, carrying axis hole, connecting hole, thread Pilot hole and upper arm, linking arm is between reach and upper arm, reach counterbore and carrying axis hole are opened on reach and on same axis, connecting hole and thread Pilot hole are opened on upper arm, on upper arm, be provided with the inner side step and the outside step that are parallel to each other, and have deep-slotted chip breaker between this inner side step and outside step, described reach is cylindrical, the processing method of spring arm comprises the steel plate blank of preparing a 75x25x42mm, it is characterized in that: the processing method of above-mentioned spring arm is carried out according to the following steps:
1) described steel plate blank vacuum heat-preserving is quenched, make its hardness reach HR54, then milling reach upper surface blank;
2) rough mill upper arm, upper arm radially stays the surplus of 0.5mm, and inner side step processing puts in place;
3) half finish-milling reach, reach radially stays the surplus of 0.2mm, and the processing of reach bottom surface puts in place;
4) with carbide-tipped milling cutter finish-milling reach, and by compressed air, spray refrigerating gas and carry out cooling to carbide-tipped milling cutter, now reach radially stays the surplus of 0.1mm, and all the other positions of reach all process and put in place, and the surplus of the 0.5mm that upper arm radially stayed also mills at this moment;
5) the surplus right boring of the 0.1mm that with cylindrical boring cutter, reach radially stayed is removed, and processes deep-slotted chip breaker with carbide-tipped milling cutter, then preboring connecting hole, and to connecting hole chamfering;
6) with solid carbide drill, bore thread Pilot hole, now with running through machine tool chief axis and drill bit after cooling fluid pressurization, then double thread bottom outlet tapping;
7) with whole hard alloy screw tap and the power-assisted flat-nose pliers arm that is clamped and connected, and with the clamping face of milling cutter milling linking arm;
8) with milling cutter, rough mill outside step, this outside step diameter is to the surplus of staying 0.2mm, and the processing of step bottom surface, outside puts in place;
9) by solid cemented carbide milling cutter fine finishining step side, and the surplus to stayed 0.2mm mills by above-mentioned outside step diameter, then preboring carrying axis hole, and to reach Hole chamfering;
10) with solid carbide drill, bore carrying axis hole and connecting hole, and with solid cemented carbide milling cutter milling processing reach counterbore, finally form spring arm finished product.
2. the processing method of spring arm according to claim 1, is characterized in that: the temperature that described vacuum heat-preserving quenches is between 450 ℃-500 ℃.
3. the processing method of spring arm according to claim 1 and 2, it is characterized in that: described bores thread Pilot hole with solid carbide drill, after the pressurization of cooling fluid by 60 kg/cm, run through machine tool chief axis and drill bit, make the temperature of drill bit be down to 30 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210170286.9A CN102689140B (en) | 2012-05-29 | 2012-05-29 | Method for processing spring arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210170286.9A CN102689140B (en) | 2012-05-29 | 2012-05-29 | Method for processing spring arm |
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| CN102689140B true CN102689140B (en) | 2014-07-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100525951C (en) * | 2007-05-26 | 2009-08-12 | 张淑华 | A method for preparing rivet forging mold |
| DE102007037671A1 (en) * | 2007-08-09 | 2009-02-12 | Lucas Automotive Gmbh | Bracket for the handbrake lever of a drum brake during initial assembly to produce a permanent bias of the Bowden cable |
| CN101437373B (en) * | 2007-11-16 | 2012-09-26 | 鸿富锦精密工业（深圳）有限公司 | Metal casing and molding method thereof |
| CN101468437B (en) * | 2007-12-26 | 2010-09-08 | 深圳市大族激光科技股份有限公司 | Method for processing stator |
| CN101745778A (en) * | 2008-12-09 | 2010-06-23 | 张家港天达工具有限公司 | Method for processing connecting arm of wire clippers |
| CN101695805B (en) * | 2009-10-30 | 2011-01-05 | 吴江市双精轴承有限公司 | Fixed bead ring processing method |
| CN102107345A (en) * | 2009-12-29 | 2011-06-29 | 鞠小平 | Processing method for universal-joint flange yoke of transmission shaft of heavy-duty car |
| CN102059509A (en) * | 2010-10-25 | 2011-05-18 | 鞠小平 | Processing method of double-section drive axle space ring |
| CN101972920B (en) * | 2010-10-29 | 2012-06-27 | 长春轨道客车股份有限公司 | Processing method of gear reducer |
| CN102218644A (en) * | 2011-05-23 | 2011-10-19 | 扬州市明瑞气弹簧有限公司 | Machining process of self-locking air spring |
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