SMW-AUTOBLOK The future in the view
SMW-AUTOBLOK The future in the view
Last Update : 11:24:25 01/04/2017
Drawbar Clamping Forces
แรงดึงในเอกสารนี้มีที่มาจากมาตรฐานสากลและผู้ผลิตอุปกรณ์จับยึด ข้อมูลนี้ใช้สำหรับการอ้างอิงเท่านั้น: สำหรับข้อกำหนดเฉพาะสำหรับเครื่องเฉพาะเครื่องควรติดต่อผู้สร้างเครื่อง ทั้งนี้ขึ้นอยู่กับการประยุกต์ใช้เป็นปกติสำหรับผู้สร้างเครื่องในการออกแบบเครื่องสำหรับแรงสูงหรือต่ำกว่า
Last Update : 11:15:26 01/04/2017
เครื่องมือวัดแรงดึง HSK Taper Drawbar Force Gauges Steep Taper (ISO) Kennametal (KM Taper) Capto PS
ForceCheck gauges from TAC Rockford are for preventive maintenance on machine tools, such as the power draw-bar spindle interface, chucks/turning-centers, and other machining applications. Since some spindles and turning-centers are standard, and other force measuring requirements might be unique, we offer an expansive product line of gauges to suit the needs for anyone in the machine tool industry.
Last Update : 11:11:36 01/04/2017
Collet Chuck I.D Clamping O.D Clamping
Collet Chuck สำหรับจับชิ้นงานในและจับนอก จะต้องจับชิ้นงานที่ machine แล้วจาก OP-10 Inside Clamping Outside Clamping
Last Update : 16:38:28 28/03/2015
งาน Design Special chuck for CNC LATHE
รับงานออกแบบ special chuck for OP-10 , OP-20 , OP-30 สำหรับเครื่องจักร CNC LATHE ทุกประเภทและไม่สามารถใช้ STD CHUCK ทั่วไปจับชิ้นงานยากๆๆ ได้
Last Update : 16:24:51 28/03/2015
Work Gripper
Brand : KHAN
Model : Work Gripper Carbide insert : PC127-10SC PC127-4SC PC130-4SC PC145-5SC PC132-4SC PC070-12SC PC070-4SC PC130-2SC-S PC127-4SC-S
Work Gripper Carbide insert สำหรับใช้งานจิกผิวงานหล่อ JIG หรือ Chuck Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper Work Gripper
Last Update : 09:56:22 20/03/2020
AIR CHUCK
Brand : NAKASEIKI
Model : NPC-2RS-F22N/25N/F25N NPC-2RS-32/F32 NPC-2RS-35/F35 NPC-2RSS-32/35/F35 NPC-2RJ-25 NPC-2RJ-35 NPC-3RJ-35 NPC-3RS-28 NPC-3RS-38/F3
NPC-2RS-F22N/25N/F25N NPC-2RS-32/F32 NPC-2RS-35/F35 NPC-2RSS-32/35/F35 NPC-2RJ-25 NPC-2RJ-35 NPC-3RJ-35 NPC-3RS-28 NPC-3RS-38/F38 NPC-4FS-31 NPC-4FS-33 NPC-4FSS-33 NPC-4FSS-43 NPC-4RS-310 NPC-4RSS-310 NPC-2AS-35S NPC-3RSS-28 NPC-3RSS-38 NPC-2RR-35
Last Update : 18:59:45 27/02/2020
PNEUMATIC CHUCK
Brand : NAKA SEIKI
Model : PNEUMATIC CHUCK
PNEUMATIC CHUCK NPC-4FS-31 ? NPC-4FS-33 ? NPC-4FSS-33 ? NPC-4FSS-NPC-4RS-310 ? NPC-4RSS-310 NPC-2AS-35S ? NPC-2RS-F22N ? NPC-2RS-25N ? NPC-2RS-F25N ? NPC-2RS-32 ? NPC-2RS-F32 ? NPC-2RS-35 ? NPC-2RS-F35 ? NPC-2RSS-32 ? NPC-2RSS-35 ? NPC-2RSS-F35 ? NPC-2RJ-25 ? NPC-2RJ-35 ? NPC-3RJ-35 ? NPC-3RS-28 ? NPC-3RS-38 ? NPC-3RS-F38 ? NPC-3RSS-28 ? NPC-3RSS-38 ? NPC-2SS-25 ? NPC-2SS-210 ? NPC-2RR-35 NPC-2RS-F22N/25N/F25N NPC-2RS-32/F32 NPC-2RS-35/F35 NPC-2RSS-32/35/F35 NPC-2RJ-25 NPC-2RJ-35 NPC-3RJ-35 NPC-3RS-28 NPC-3RS-38/F38 NPC-4FS-31 NPC-4FS-33 NPC-4FSS-33 NPC-4FSS-43 NPC-4RS-310 NPC-4RSS-310 NPC-2AS-35S NPC-3RSS-28 NPC-3RSS-38 NPC-2RR-35
Last Update : 18:47:34 27/02/2020
HAND PRESS MANUAL PRESS
Brand : NAKA SEIKI
Model : NAKA SEIKI HAND PRESS
HAND PRESS MANUAL PRESS NH100 NH202 NH600 HZP-4 HZP-5 HZP-6 HZP-1 HZP-2 NH100 NH202 NH600 HZP-4 HZP-5 HZP-6 HZP-1 HZP-2
Last Update : 18:40:30 27/02/2020
Concentricity Gage
Brand : Concentricity Gage
เครื่องมือวัดละเอียดอุตสาหกรรม Concentricity Gage concentricity gauge with dial indicator Concentricity Gauges Measuring Tools Universal Punch Concentricity Gage
Last Update : 07:48:07 21/02/2020
Accuvision Presentation
Last Update : 14:05:27 28/01/2020
KNCS-2G
Last Update : 14:02:04 28/01/2020

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Product Information :

Product Name:  
เครื่องวัดแรงดึง Drawbar Force
Product Category:   เครื่องจักร, อุปกรณ์เกี่ยวกับเครื่องจักร, เครื่องมือกล
Product Sub-Category:   TAC Rockford for machine Tools
Brand:   TAC Rockford 
Product Type :   สินค้า, ผลิตภัณฑ์ 
Short Description :   TAC Rockford Check Drawbar Force เครื่องวัดแรงดึง drawbar force สำหรับเครื่อง Machining Center HSK Taper Steep Taper (MAS 403 BT) Steep Taper (SK-DIN) Steep Taper (CAT/ANSI) Steep Taper (ISO) PSK CaptoKM Taper
     
 
TAC Rockford Check Drawbar Force
เครื่องวัดแรงดึง drawbar force สำหรับเครื่อง Machining Center
HSK Taper
Steep Taper (MAS 403 BT)
Steep Taper (SK-DIN)
Steep Taper (CAT/ANSI)
Steep Taper (ISO)
PSK CaptoKM Taper

Why Check Drawbar Force?

 

Test spindle pull force directly in machine

Is your power drawbar working correctly?

 

Improve tool life and part finish

Correct tool holding force ensures that the spindle-tool holder interface is as rigid as possible. A rigid interface will improve tool life by reducing chatter and excess wear, and in turn improve workpiece finish.

 

Protect your spindles and ensure machining accuracy

Insufficient tool holding force can quickly wear or damage the critical spindle taper resulting in loss of machine accuracy and an expensive repair bill.

For the HSK taper, wear and damage on the spindle taper are even more detrimental. The HSK taper relies on an interference fit between the spindle and tool holder tapers, meaning drawbar force must be sufficient for the tool holder to properly seat. Because the HSK interface seats both on the tool holder taper and flange, dimensional tolerances are extremely tight. For HSK forms E and F, correct clamping force is crucial because there are not drive keys or dogs to transmit torque–the system relies entirely on the power drawbar's holding force.

 

Predict problems with the spindle's Belleville / disk spring stack

Machining centers with automatic tool clamping systems typically use Belleville/disk spring stack to hold a tool in the spindle, with a hydraulic cylinder used to overcome the spring force to unclamp the tool.

High RPM is often an important design criterion for a spindle, meaning the use of small diameter bearings makes sense from an engineering standpoint. Small bearings necessitate the use of small diameter springs to fit into the spindle arbor. Small-diameter springs lead to highly stressed springs for tool clamping, and even more so during tool unclamp.

A typical drawbar spring stack is designed to last approximately 1 million cycles. This may sound like a big number, but tool changes add up quickly. An example: a process with 3 to 4 tool changes per minute (many do much more), with 2,000 operating hours per year (one shift), means between 360,000 and 480,000 cycles are made per year. In this scenario, the springs have reached the end of the design life cycle and should be replaced after two years. We have found some processes that reach 1 million cycles after 6 months–with the complaint that the "springs break all the time."

Springs will not break all at once. Initially only one spring might break without significant impact on tool holding force. However, soon others will break since they have to do the work of the broken spring (or springs) as well. The rest of the springs will be overloaded and break or take a permanent set.

This failure process can be detected with a clamping force measuring device and action be taken before the clamping system fails completely.

 

Check for the role that friction plays in the clamping system and for proper lubrication

Some drawbar designs use a mechanical force intensification mechanism to increase tool holding force. When force intensification is used, friction is a factor to be watched. It is difficult to quantify friction without measurement. Machine builders typically provide a tool holding force specification for properly lubricated and adjusted clamping system.

Most power drawbar systems with HSK tapers use force intensification in the gripper design. The mechanical intensification of the force is typically between 3 and 9 times, making friction a major factor in the proper operation of the system.

For systems with manual HSK grippers such as those supplied by Mapal and Guehring, periodic verification of correct tool holding force is also of critical importance. Per manufacturer recommendation, tools should be clamped using a torque wrench to ensure correct force. However, if the gripper is not properly lubricated, tool holding force will be much lower at the specified torque.

 

Operator safety

Eventually, the tool holding system of a machine will fail catastrophically if left unchecked. There will be lots of mysterious problems such as poor part finish and broken tools, and eventually leading to the tool flying out of the spindle and damaging the workpiece, machine, or worse–injuring the operator.

 

Standards compliance

  • The ISO and DIN HSK standards have recommended minimum clamping forces. The ForceCheck gauge can verify that these are met.
  • The "CAT" steep taper standard ASME B5.50 specifically recommends using a drawbar force gauge.
  • ISO 9000 compliance requires that critical machine parameters be periodically checked.


 

HSK Taper

HSK Taper

Measuring bars, complete sets, and base sets for all HSK type spindles. Contact us for other wireless and carrying case options.

 

Steep Taper (MAS 403 BT)

Steep Taper (MAS 403 BT)

Measuring bars, complete sets, and base sets for Steep Taper (MAS 403-BT) JIS standard.

 

Steep Taper (SK-DIN)

Steep Taper (SK-DIN)

Measuring bars, complete sets, and base sets for Steep Taper (SK) DIN standard. Metric or inch retention knob / pull-stud threading available on each measuring bar.

 

Steep Taper (CAT/ANSI)

Steep Taper (CAT/ANSI)

Measuring bars, complete sets, and base sets for Steep Taper (SK) CAT-ANSI. Metric or inch retention knob / pull-stud threading available on each measuring bar.

 

Steep Taper (ISO)

Steep Taper (ISO)

Measuring bars, complete sets, and base units for measuring drawbar force on a Steep Taper (SK) ISO standard spindle.

 

PSK Capto

PSK Capto

Measuring bars, complete sets, and base units for measuring drawbar force on Coromant Capto spindles (Polygonal Shank Taper - PSK).

 

KM Taper

KM Taper

Measuring bars, complete sets, and base units for measuring drawbar force on a Kennametal KM spindle.

 

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