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Summary of Contents for Kitagawa HG-A97-212
- Page 1 MA0947PHG INSTRUCTION MANUAL model：HG‑A97‑212 Kitagawa Iron Works, Co., Ltd. 〒７２６−８６１０ 77‑1, Moto‑machi, Fuchu‑shi, Hiroshima‑pref. TEL ０８４７（４０）０５２９ ...
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Page 3: Table Of Contents
Table of contents Preface Important Safety Precautions １． Structural drawing and Parts list １−１．Structural drawing １−２．Parts list ２． Specifications ３． Relationship between gripping force and rotation speed ３−１．Maximum static gripping force ３−２．Allowable maximum rotation speed ３−３．Relationship between gripping force and rotation speed ３−４．Relationship between gripping part center height, static griping force and input force / Relationship between top jaw mass moment and gripping force loss... -
Page 4: Preface
Preface This manual provides detailed information about how to safely and correctly use the power chuck (HG-A97-212 type) for a lathe. Before starting to use this power chuck, read this manual carefully and always follow the instructions and warnings in "Important Safety Precautions" and "Precautions for Use"... - Page 5 The chuck and cylinder from Kitagawa Iron Works should be used together. If you must use a part not made by Kitagawa, check with us or our distributor to be sure it is safe to do so. We will not be responsible for injury, death, damage or loss caused by use of a chuck or cylinder made by another company unless this use has been approved by Kitagawa or its distributor.
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Page 6: Important Safety Precautions
Important Safety Precautions Important safety precautions are summarized below. Please read this section before first starting to use this product. Failure to follow the safety precautions below will result in ！ DANGER serious injury or death. Turn off main power supply before attaching, inspecting or replacing chuck, and before adding oil. - Page 7 The input force of the chuck (piston thrust, pulling force of the draw pipe) must not exceed the allowable maximum input force. For All Users ・ Input must match the specification of the chuck. ・ Adjust the hydraulic pressure to the cylinder so that the input force, which determines the gripping force of the chuck, does not exceed.
- Page 8 Use of a chuck and cylinder that cannot be used together safely may cause the cylinder to break at high pressure resulting in the chuck and work flying out. For All Users ・ Check that the chuck and the cylinder are in the “safe combination” when using at high pressure with our company or the distributor.
- Page 9 Always tighten the bolts at the specified torque. If the torque is insufficient or excessive, the bolt will break, which is dangerous as the chuck or work will fly out. Use the bolts attached to the chuck, and do not use bolts other than these.
- Page 10 Use a cylinder with a lock valve (safety valve, check valve) incorporated in case of sudden hydraulic pressure drop due to blackout, malfunction of the hydraulic pump, etc. Further, use a solenoid valve with a circuit that retains the gripping position when no current is carried. For Machine Tool Manufactures ・ ...
- Page 11 Do not operate the machine Do not operate the machine wearing after drinking alcohol or taking gloves, a necktie, and other loose medication. clothing or For All Users For All Users jewelry. ・ Dangerous since these lead to operation ・ Dangerous since it will be caught. mistakes and misjudgment.
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Page 12: １． Structural Drawing And Parts List
Structural drawing and Parts list １． Structural drawing １−１． 1 Fig. -
Page 13: １−２．Parts List
Parts list １−２． Table 1 No. Part name No. Part name Quantity Quantity A Body 1 04 Socket head cap screw Ｍ4×8 5 B Master jaw 5 05 5 Socket head cap button screw Ｍ6×12 C Soft jaw 5 06 Set screw half dog point Ｍ6×16 5 D Spacer 10 07 Set screw flat point Ｍ8×8 5 E ... -
Page 14: ３． Relationship Between Gripping Force And Rotation Speed
・ The attaching bolts of the soft jaw are tightened at the specified torque. ・ The numerical values are obtained with the Kitagawa gripping force meter . The gripping position of the gripping force meter is at a position the chuck surface. - Page 15 To avoid serious accidents caused by the chuck or work flying out: ・ Determine the gripping force required for processing by the machine tool manufacturer or user, and check that the required gripping force is provided before processing. The gripping force of the chuck must not exceed the maximum static gripping force.
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Page 16: ３−３．Relationship Between Gripping Force And Rotation Speed
The centrifugal force differs significantly depending on the size and shape of the top jaw and the attaching position, therefore, when the rotation speed is high, actual measurement using a Kitagawa gripping force meter is required. ... -
Page 17: ３−４．Relationship Between Gripping Part Center Height, Static Griping Force
Relationship between gripping part center height, static griping ３−４． force and input force / Relationship between top jaw mass moment and gripping force loss If the gripping part center height of the used top jaw is higher than the chuck surface, a large load is applied to the master jaw, rever, jaw attaching bolts, etc. To prevent these parts from being broken, it is necessary to use the machine by using a lower input force than the allowable maximum input force. -
Page 18: ４． Forming Soft Jaw
Forming soft jaw with outside diameter gripping ４． １．Preparation of the ring for forming ・ Prepare the ring for forming. The surface roughness of the ring inside diameter and part to locate in jaw front surface are to be approximately 25s, and make a shape with a sufficient thickness which does not distort. - Page 19 ４．Adjustment of gripping part center height ・ When gripping a work, cut down the c-section gripping center so that the surface of the chuck. b-section using standard soft jaw, dimensions will be 14mm. Processed to while holding the ring. ５．Forming ・ ...
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Page 20: ５．Attachment Of Chuck
５．Attachment of chuck ・ Turn off the main power of the machine before starting work. ・ Read the following disassembling procedures with reference to page 11,12. ・ Always tighten the bolts at the specified torque. ① Attach the cylinder and draw-pipe to the spindle. Move 2 to 3 times at low pressure (0.4 MPa) and set the piston at the forward end and turn off the power supply. ... -
Page 21: ６． Usage
Usage ６． In the case of attaching the locator and the jig on the chuck surface, use the taps specified in Fig. 5. If you are installing a jig to tap hole of the chuck surface, please install a 58N · m tightening torque of the socket head cap screw. ... - Page 22 Table 7 Genuine Kitagawa genuine product CHUCK GREASE PRO product (Kitagawa distributor of each country) Kitagawa chuck grease Conventional product Molykote EP Grease TORAY Dow Corning (only inside Japan) Conventional Chuck EEZ grease Kitagawa-Northtech Inc.
- Page 23 7-3. Disassembling Disassembling procedures Read the following disassembling procedures with reference to page 11,12. ① Turn off the main power of the machine before starting work. ② If the fixture and jaw are attached to the chuck, please remove in advance. ...
- Page 24 ・ Remove the eyebolt or the belt without fail after using. If the chuck is rotated with the eyebolt, etc., attached, they may fly out and this is dangerous. ・ Disassemble and clean the chuck at least once every 6 months or every 100,000 strokes (once every 2 months or more for cutting cast metal).
- Page 25 The products herein are controlled under Japanese Foreign Exchange and Foreign Trade Control Act. In the event of importing and/or xporting the products, you are obliged to consult KITAGAWA as well as your government for the related regulation prior to any transaction.
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