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Be sure to read this instruction manual 本取扱説明書をよく読み, 内容を十分理解した thoroughly before operating the rotating 上でこの製品を使用してください。 cylinder. この取扱説明書は大切に保管し, 製品の所有者 Please save this manual. When が変わった場合, この説明書も新しい所有者に ownership of this product is transferred, 手渡してください。 submit this manual to the new owner. 豊和工業株式会社 HOWA MACHINERY, LTD.
Precautions 1. This instruction manual describes model HH11C Rotating Hydraulic Cylinder Standard Model. 2. Please read this manual carefully and fully understand the procedures for installation, operation, inspection, and maintenance before operating the rotating cylinder. 3. Ignoring any instructions in this manual may result in a serious accident or machine damage, leading to injury to the operator or personnel near the machine.
Safety Precautions Read and understand the following precautions before using the rotating cylinder, and observe them during operation. DANGER Never turn off the power of the hydraulic pump during spindle rotation. Danger by discharge of workpiece. Never operate the selector valve during spindle rotation. Danger by discharge of workpiece.
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Use a strainer with 20 µm filterability or better. Order all parts for this rotating cylinder from Howa machinery, Ltd. Howa assumes no responsibility for accidents which occur when other than Howa genuine parts are used. Any and all warranties are void unless only Howa genuine parts are used.
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CAUTION Use lifting belt when attaching or detaching rotating cylinder. Danger by dropping of rotating cylinder from your hands. Danger by an excessive stress causing your lumbar injury. Turn off the power source before supplying hydraulic oil. Keep fire and flame away during supplying. Danger by flaming of hydraulic oil.
The detector section of the model HH11C consists of a pipe connected to the piston and going through the distributor shaft, an arm transmitting the axial movement of the pipe to the rod via the bearing and a dog plate carrying god in the groove and traveling axially with the rod.
3. Installation The rear end of the spindle to which the rotating cylinder is attached has various configurations. Here, a typical rear end configuration is shown as an example. 3.1 Cylinder Adaptor Determine the location for the rotating cylinder, with interference with the lathe body, direction and position of piping, draft and other necessary factors taken into account.
3.2 Connecting Rod The rotating cylinder output is transmitted to the chuck by via the connecting rod, causing the jaws to grip and release workpiece. The connecting rod is first screwed into the piston, the rotating cylinder is installed, and the chuck is connected to the connecting rod. The connecting rod shall have enough bearing capacity to withstand the maximum thrust (multiply the piston area by the maximum hydraulic pressure).
3.3 Mounting and Anti-rolling Guide What is most important in accomplishing the piping work is that the rotating cylinder must be protected from excessive stress. The viscosity of the hydraulic oil will cause a slight amount of torque on CAUTION the distributor when the rotating cylinder rotates.
3.4 Piping Four hydraulic oil supply ports and one drain port are provided on the rotating cylinder distributor. The cylinder is delivered with its two ports in the same direction as the drain port closed with polyethylene plugs and its other two ports at right angle to the drain ports closed with blind plugs.
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3.6 Hydraulic Unit, Hydraulic Oil, Hydraulic Circuit When providing a dedicated pump unit for the hydraulic unit, determine the pump specifications by taking the cylinder size, permissible oil pressure, required gripping force, etc. into consideration. Do not use a motor with too much power or a pump with excessive delivery capacity, because the oil temperature will rise and this may cause problems.
3.7 Switch Setting The stroke control attached to HH11C is so set that No.1 limit switch detects the stroke end on the right side and No.2 limit switch detects the stroke end on the left side. If detection is to be made at other positions, the dog position must be changed.
If the wear of the seal or damage of the part is found, replace it (them). ☆ ☆ ☆ ☆ Disassembling procedure for the model HH11C rotating cylinder 1) Remove bolt (47) and detach bracket (40) with cover (43) and limit switch (44).
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☆ ☆ ☆ ☆ Parts list Parts Name Q'ty Parts Name Q'ty ※12 Cap Screw Seal Screw Hex. Nut Rod Cover Gasket Rod Seal Distributor Cover O Ring Cap Screw Piston Cap Screw Spring Pin Split Pin Guide Bar O Ring Dog plate Cylinder Body Cap Screw...
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HH11C Parts Name Q'ty USH-25 USH-30 USH-35 USH-45 Rod Seal (NOK) (NOK) (NOK) (NOK) G120 G135 AS568- AS568- O Ring (JIS) (JIS) (JIS) (JIS) P115 P130 P150 P185 O Ring (JIS) (JIS) (JIS) (JIS) (JIS) (JIS) 11 O Ring (JIS)
LIMITED WARRANTY Seller warrants its products to be manufactured in accordance with published specifications and free from defects in material and/or workmanship. Seller, at its option, will repair or replace any products returned intact to the factory, transportation charges prepaid, which seller, upon inspection, shall determine to be defective in material and/or workmanship.
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