Page 1
Be sure to read and understand this 本取扱説明書をよく読み, 内容を十分理解した instruction manual thoroughly before 上でこの製品を使用してください。 operating this product. 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. HOWA MACHINERY, LTD.
Page 26
Table of contents Introduction Safety Information Safety Precautions 1. Construction and Operation ........4 1.1 Model Coding ............. 4 1.2 Construction and Operation ....... 4 2. Installation ..............4 2.1 Unpacking ............5 2.2 Accessories ............5 2.3 Preparations for Installation ......5 2.4 Stroke Control ............
Introduction 1. This instruction manual describes the quick change through-hole power chuck H018M (standard model). 2. Please read this manual carefully and fully understand the procedures for installation, operation, inspection, and maintenance before operating the chuck. 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 The following precautions apply to handling, maintenance, and operation of the chuck. Read and understand them carefully before use. DANGER Never operate the rotating cylinder selector valve while the spindle is rotating. Otherwise, the gripped work piece may come off and fly out. Never put any part of your body inside the spindle cover while the spindle is rotating.
Page 29
(supplied from Dow Corning Corporation) For all the chuck parts including consumables, place an order with Howa Machinery, Ltd. Howa shall not be liable for any accidents caused by use of parts not supplied from Howa. Any and all warranties are invalid unless only Howa’s genuine parts are used.
1. Construction and Operation 1.1 Model Coding The quick change through-hole power chucks are model coded as follows: H018M JIS-specified spindle nose No. No mark:Having a straight socket for installation of chuck. (standard model) : Including an adapter or a back-plate Spindle nose No.
2.4 Stroke Control Fig. 2 For the H018M chuck, the cylinder stroke of the rotational cylinder and the plunger stroke of the chuck must be equal. If the rotational cylinder stroke is longer than the plunger stroke of the chuck, the former must be adjusted to the latter.
2.5 Installing Procedure 2.5.1 Before Installation After taking the chuck out of the package box, wipe off all anticorrosive oil clinging to it with a cloth permeated with cleaning oil. Never use the chuck with a vertical lathe. WARNING If this chuck is used with a vertical lathe, cutting tips may heap up around the rack and interfere the jaw change operation.
Fasten the retainer installing bolts with connect tightening torque. WARNING Too little or too much torque may cause a fracture of the bolt itself or of the retainer, causing an instantaneous loss of chuck gripping force. This in turn may cause the work piece to be released and may cause severe personal injury or death to the operator or bystanders.
(4) Insert the special wrench equipped from the front side of the chuck and check to see whether the draw screw can be turned. (5) Hoist the chuck with the chain block and screw in the draw screw into the connecting pipe until it can be tightened no more.
For all the chuck parts including consumables, place an order with WARNING Howa Machinery, Ltd. Howa shall not be liable for any accidents caused by use of parts not supplied from Howa. Any and all warranties are invalid unless only Howa’s genuine parts are used.
3.2 Installing Top Jaws Each top jaw is combined with its base jaw. The base Fig. 9 jaw engages with the master jaw and can be released from the master jaw easily by manipulating the rack assembled to the master jaw using a special wrench furnished.
Use three bolts to secure one top jaw. Be sure to chouse the bolts WARNING with appropriate length. Use three bolts to secure one top jaw. If two bolts are used, the top jaw and/or the bolt may break. If the bolts used to secure the top jaws are screwed in too shallow into the base jaw, the top jaw could break.
Page 38
Fig. 12 OD gripping ID gripping ●Prepare a formed plug. ●Prepare a formed ring ●Open the master jaws to the limit by ●Close the master Jaws to the limit by operating the hydraulic or pneumatic operating the hydraulic or pneumatic circuit.
Remarks When machining a bar stock, keep in mind that the chuck may lose stable gripping force and the work piece may slip because a long work piece may vibrate and the top jaws cannot firmly grip a work piece with a smaller diameter. In such a case, secure a greater gripping length in the axial direction to improve gripping stability.
3.5.1 Permissible Cylinder Force The permissible cylinder force indicated in the specification table or catalogue is the maximum cylinder force at which the chuck will not suffer damage, presuming those standard soft jaws or standard hardened jaws are used. This maximum force may be used as required, of course, but ordinarily long-term use under conditions of maximum force is not recommended.
3.6.1 Before Gripping Work piece Before beginning operations, check to be sure that the pneumatic WARNING or hydraulic pressure needed to operate the chuck is being supplied to the rotating cylinder. If not supplied or not sufficient, the work piece could slip out and fly off as the cutting starts, and may cause severe injury or death to the operator and/or bystanders.
3.6.3 During Cutting Operations In any of the following cases, the tool impact on initial cutting WARNING contact may result in an unexpected cutting force in excess of chuck work holding capacity: The back end of the work piece is away from the chuck’s stopper face.
4. Maintenance 4.1 Lubrication The most frequent cause of chuck failure is insufficient or improper lubrication. If lubrication is insufficient or if a non-specified lubricant is used, not only will wear be accelerated, the gripping force will be inadequate, with the possibility of the work piece coming off during the cutting operation.
4.2.1 Disassembling Procedure (1) Remove the chuck installing bolts (27). (2) Remove the holder (3) and collar (2). Remove the chuck with turning the draw screw (6) by the special wrench furnished. (3) Remove the base jaw (12) with the top jaw (14). (4) Remove the bolt (30) from the chuck body (1).
4.4 Parts List Parts Name Q'ty Parts Name Q'ty Chuck body Spring Collar Stopper ※ 3 or Holder Screw O ring Hex. socket head bolt Wedge plunger Hex. socket head bolt Draw screw Screw Retainer Grease nipple Spring Hex. socket head bolt Steel ball Hex.
5. Troubleshooting When there are any troubles with the operation of the chuck, the following causes are likely. Please check these before contacting us for service. Trouble Possible cause Recommended remedy Chuck does not Damaged parts on chuck. Disassemble and repair. operate Seizure of sliding contact part.
6. Specifications 6.1 Specifications Specifications Dimension Series number Series H018M H018M number Specifications Symbol Jaw movement (Dia.) 10.7 13.4 13.4 16.08 Min. Plunger stroke (Cylinder stroke) Recommended outside Max. mm chucking diameter for 133.4 133.4 171.4 standard soft jaws Min. mm Max.
6.2 Gripping Force The following graph shows the gripping force of the rotating chuck equipped with the standard soft jaws. 6.3 Standard Top Jaws The following table shows the dimensions of standard soft jaws. Weight Chuck series J 1 0 J 1 1 J 1 2 J 1 7...
6.5 Accessories The package box contains the accessories besides the chuck itself. Chuck size Q'ty Parts name Special wrench for ○ ○ ○ ○ adjusting draw screw. Hex. socket head bolt for mounting chuck L=80 L=90 L=100 L=120 B=2.5 Hex. key spanner B=10 each B=10...
Need help?
Do you have a question about the H018M and is the answer not in the manual?
Questions and answers