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Hot clamping chuck has 10 advantages
2015-05-11 15:50
Application advantages of hot clamping chuck in mold processing
Abstract: Application advantages of hot clamping chucks in mold processing For mold processing, hot clamping chucks have 10 advantages:
Application advantages of hot set chucks in mold processing For mold processing, hot set chucks have 10 advantages:
(1) High precision that is difficult to surpass
A correctly manufactured shrink-fit chuck should be able to guarantee a maximum radial runout error of 3μm at three times the tool diameter. When different personnel operate, the accuracy is also extremely repeatable.
(2)Slim shape with good applicability
The shrink-fit chuck adopts an oblique wall shape with a cone angle of 3°, and its appearance is very slim and compact. In order to prevent the collet from interference and collision with the workpiece, if necessary, the collet can also be modified to a straight wall shape.
(3) Extremely large clamping torque
The shrink chuck clamps the tool 360° around the periphery of the tool bar, so its clamping torque is extremely large, which can prevent the tool from displacement during roughing or finishing, thereby greatly reducing the scrap rate of the workpiece.
(4) Optional extension rod
In addition to the standard hot-fit chuck, users can also choose hot-fit extension rods of different specifications. When processing deep cavities, the shrink-fit extension rod can be fitted into the standard shrink-fit chuck, so as to obtain the chuck extension length with minimal radial runout error.
(5) Balance repeatability and adjustable balance pieces
Since the shrink chuck has no moving parts, it can provide the best balance and repeatability that exceeds any tool chuck system on the market. In many cases, if the processing shop buys a well-balanced shrink-fit chuck with suitable accessories (such as pull studs), and uses high-quality tools that have no inherent imbalance factors (such as flat surfaces), they usually do not need With additional fine balance adjustment, excellent balance performance can be obtained in high-speed cutting. Of course, after assembling the chuck system (chuck + tool + pull stud or coolant pipe), if you need to perform additional balancing operations on the chuck system on the balancing machine, then many hot-loading chucks on the market are Equipped with an easy-to-use adjustable balancer built into the chuck.
(6) Shorten tool change time/reduce inventory of chuck accessories
If an efficient induction heating tool setting machine is used in the tool change process, the tool change time of the hot chuck is the shortest among various tool chucks, and the tool change can be completed in 5-10 seconds. It is important that the consistency of tool change times is always maintained. Therefore, the hot clamping chuck assembled by the tool loading machine can obtain more cutting time, without having to idle the machine tool to wait for the tool change. In addition, the workshop hardly needs to stock spare chuck accessories (such as clamping jaws, pressure caps, sealing discs, etc.), which can simplify the process.
(7) High cleanliness of the chuck
From the point of view of the design principle, the shrink chuck is a typical sealing system. Therefore, the possibility of impurities (such as graphite dust, cutting chips, etc.) generated during processing entering the chuck hole is extremely small. If impurities enter the chuck hole, it will often affect its runout accuracy.
(8) Suitable for internal cooling
Hot clamping chucks usually use innovative methods to deliver coolant or cold air/oil mist to the cutting edge of the tool, which helps to remove chips and helps to obtain a better surface finish. In addition, if the mold processing workshop needs to perform high-precision drilling processing, since the hot clamping chuck does not require accessories or special clamping jaws, it is an ideal chuck for clamping internally cooled drills. The sealing design of the chuck can completely make the coolant flow in Smooth flow inside the tool.
(9) Consistency of knife loading
There is excellent consistency between the various tool loading operations of the hot clamping chuck, which is particularly advantageous for high-speed mold processing workshops. For example, the knife loading operations performed by different operators on the hot clamping chuck have the same state and will not be affected by various variables (such as the clamping jaw pressure cap is too tight or too loose, the chuck is not sufficiently cleaned, etc.) . In addition, as mentioned earlier, the balance repeatability of the shrink chuck is also extremely high. This combination of uniformity of tool installation and balance repeatability enables the processing workshop to accurately monitor tool life and predict the number of workpieces that can be processed per tool installation, which is also extremely important for improving the processing efficiency of the workshop.
(10) Convenience of supply
At present, most major tool chuck manufacturers in the world can provide shrink-fit chucks (as standard products). Therefore, the mold processing workshop will not have supply problems like the use of high-precision collet chucks or other chucking systems (the chucks are sometimes produced by only one or a few manufacturers).
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