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Cnc Punch Press Tooling And Maintenance Of The Correct Use by big tree
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Cnc Punch Press Tooling And Maintenance Of The Correct Use by BIG TREE
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| Article Posted: 09/11/2010 |
| Article Views: 11 |
| Articles Written: 1033 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 972 |
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Cnc Punch Press Tooling And Maintenance Of The Correct Use |
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Business,Business News,Business Opportunities
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CNC punch press tooling life, in addition depends on the proper die structure, high manufacturing precision, a good treatment effect and to select correct punch, punch mold installation accuracy and other factors, the correct mold to use, maintenance and repair is not to be ignored link, which should note the following:
(1) mold strict inspection before installation to remove dirt, mold inspection and mold are oriented set of good lubrication.
(2) regular on the punch plate and die mounting base for inspections to ensure the accuracy of coaxial upper and lower turntable.
(3) in accordance with the installation program will die punch installed in the turntable to ensure punch and die in the same direction, especially with the direction required (non-circular and square) die more to heart, to prevent loading the wrong, anti-installed.
(4) dies after installation, check the installation of the base mold locking screws and fasteners correct.
(5) Punch Die punch and die edge wear should stop using the grinding time, otherwise it will rapidly expand the wear pattern edge, accelerated die wear and reduce the stamping quality and die life.
(6) for volume production by the use of common mold, should be back up in order to produce rotation, to ensure production requirements.
(7) stamping dies should be used for the installation of soft metal (such as copper, aluminum, etc.) made operational tool to prevent the installation process knocking, smashing damage when the mold.
(8) die in transit, we should gently, never allow the throw tinker with, so as not to damage the die edge and guidance.
(9) die back in time after using the specified location, and anti-rust treatment for oiled.
(10) service life of molds, mold spring should also be regularly replaced to prevent mold to use the spring effect of fatigue damage.
Punch Die Common Problems
(1) punch and wear too fast
Main reasons: die gap is too small, the total die gap usually recommended as the material thickness of 20% to 25%. punch and die on the neutral is not good, including the mold base and mold-oriented components and precision turret inlayed lack of good cause mold on the neutral. punch temperature is too high, mainly due to the same continuous time stamping die punches caused overheating. to improper grinding mold, causing mold annealing, wear increased. partial unilateral punching, such as the step impulse, impulse angle, or shear, the lateral force will punch to one side, the side gap decreases, causing severe die wear, if the machine is not high precision mold installation, serious The bias over the next punch will die, causing damage to the punch and die.
(2) mold with a material issue
Mold with a rebound expected to lead to waste, its related factors: the sharp die edge level, edge of the fillet, the more easily lead to waste rebound. modulus of the mold into the machine into each station's modulus is certain, small amount of mold into the mold, easily lead to waste rebound. mold space is reasonable, if the die gap is inappropriate, likely to cause waste rebound. the existence of material surface is processed more oil properties. spring fatigue damage.
Ways to prevent mold with material: with a dedicated anti-material die. mold often grinding to keep sharp, and demagnetization treatment. increase the die gap. The ramp edge instead of flat blade mold mold. Mold return feeder installed. reasonable increase the modulus into the mold. inspection mold sets the fatigue strength of a spring or unloading.
(3) mold problem on the neutral
Prone to mold in use position of each side of the core impulse wear different, and some parts have more scratches, wear out sooner, the situation in the rectangular mold were thin particularly evident. The main problem: machine turret design or lack of precision, mainly the upper and lower rotary dies bad installation seat on the neutral. precision mold design or can not meet the requirements. die punch guide sleeve accuracy is not enough. mold gap choice inappropriate. mold or mold seat installation guide sleeve wear caused by long-term use as neutral good.
To prevent mold wear inconsistent, should: regularly used on the mandrel turret on the machine and install the seat to check the adjustment of the neutral. timely replacement of die sets and guide the appropriate choice of punch and die clearance. The total lead mold. enhance operator accountability, it is found in time to find reasons to avoid greater losses.
(4) to use special forming dies
To meet production needs, often need to use a special mold or forming die, mainly bridge-shaped mold, shutters mold, Shen hole shaped mold, turn mold hole tapping, boss dies, drawing dies, composite molds, the use of special or forming mold can greatly improve production efficiency, but higher prices of forming mold, the mold is usually normal 4 ~ 5 times. To avoid errors, should pay attention and follow the following principles:
die when installed on the direction of checks to ensure that mold punch installed in the same direction.
According to the press asked the right to adjust the depth of the mold, each of the adjustments preferably not more than 0.15mm.
Use a lower speed punching.
board to smooth and no deformation or tilt.
forming location should be away from the clamp.
forming die forming operation using the down should be avoided.
When stamping stamping die in accordance with the first general, and finally use the forming die. I am an expert from China Manufacturers, usually analyzes all kind of industries situation, such as avent breast pumps , baby sippy cup.
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