Magnet clamping. Messtechnik Spanntechnik Zerspanungstechnik

Transcription

1 Magnet clamping 90 Messtechnik Spanntechnik Zerspanungstechnik

2 Introduction Magnet clamping technique Magnet clamping plates Control units Introduction Pole extensions Pole extensions 91

3 Electro-permanent Magnet clamping systems For the milling of medium and large work pieces, the square pole-magnet technology has proven worldwide as one of the best clamping techniques. Extremely short set-up times as well as a vibration- and interference-free clamping are only some reasons for its use in the fine mechanics area to the ship building industry. Vibration-free working and clamping of work pieces Fast and secure clamping of uneven parts Equal clamping force over the entire surface, without warping the work piece Five-side machining without crash risk Full use of the machine travel ways Minimal set-up times Fast and accurate plane-parallel milling Clamping of uneven welding constructions in no time Fast assembly of individual, magnetic clamping chucks Equal retention force in all directions due to square pole technique 92 Messtechnik Spanntechnik Zerspanungstechnik

4 QX Electro-permanent Magnet clamping technique block pol field The advanced QX technology comes up with many intelligent improvements, both mechanically and magnetically. Due to the use of connected block-pole-fields in the monolithic frame construction of the magnet clamping plate, the stiffness has been significantly increased compared to the old single-pole-technology - even with its small construction height. Also the epoxy-resin-interfaces have been reduced and the magnetic retention forces as well as the air gap behavior have been improved with the revolutionary block-field-technology. The threads in the soft magnet poles are provided with wear-resistant tool steel inserts. The QX magnet clamping technology is available for plates in different heights and for clamping blocks. Two different pole sizes can be selected. Depending on the expected work piece geometry two pole sizes, 50 x 50mm or 70 x 70mm, can be chosen. Thread bushings out of wear-resistant tooling steel M8 x 15mm deep Reduced epoxy resin areas Poles with the size of 50 x 50mm generate a magnetic field which enters 12mm into the work piece. That makes them a perfect choice for thinner and smaller work pieces. Another advantage is that especially smaller work pieces occupy more pole transitions which ensures a more evenly clamping process. Compared to the 70 x 70mm pole, a poorer air gap behavior and a higher set-up effort (more pole extensions) must be mentioned as a disadvantage. The nominal retention force is super strong with 160N/cm2 = 4 kn per pole. Pole with the size of 70 x 70mm generate a magnetic field which enters 18mm into the work piece. That makes them a perfect choice for larger work pieces. The excellent air gap behavior allows to clamp also uneven work pieces safely. On the 70 poles, pole extensions with a higher hub (height adjustment) can be used. The nominal retention force is super strong with 160N/cm2 = 7.8 kn per pole. Available heights, beginning at 51mm 93

5 QX-HE50 This is a super light magnet clamping plate with a height of 51mm and QX technology with 50 poles. The HE50 is designed for the tooling and machine building area. It is suitable for clamping small and thin-walled work pieces. Mounting slots on two sides and the ability to drill holes into the magnet clamping plate in many places supports a fast and flexible installation. QX-HE50 / Construction height 51mm Amount pols Control unit* MT QX 204 HE A, B MT QX 205 HE A, B MT QX 206 HE A, B MT QX 208 HE A, B MT QX 209 HE A, B MT QX 210 HE A, B MT QX 305 HE A, B MT QX 306 HE A, B MT QX 308 HE A, B MT QX 309 HE A, B MT QX 310 HE A, B MT QX 403 HE A, B MT QX 405 HE A, B MT QX 406 HE A, B MT QX 408 HE A, B MT QX 409 HE B MT QX 410 HE B MT QX 505 HE A, B MT QX 506 HE A, B MT QX 508 HE B MT QX 509 HE B MT QX 510 HE B MT QX 605 HE B MT QX 606 HE B MT QX 608 HE B MT QX 609 HE B 94 Messtechnik Spanntechnik Zerspanungstechnik

6 QX-Lock HD50 QX Lock HD50 magnet clamping plates are equipped with an extra strong frame construction. The construction height is 68mm and the plates can be back sided drilled until about 22mm deepness or milled for 12mm. This is perfect for installing reference elements for zero-point clamping systems. Transport thread around the plates allow an easy horizontal or vertical crane transport. QX-Lock HD50 / Construction height 68mm Amount pols Control unit* MT QX-Lock C MT QX-Lock C MT QX-Lock C MT QX-Lock C MT QX-Lock C MT QX-Lock C *The letters wich are pointed out on these sites for the correct control units can be compared on page 98. Control units for QX-Lock HD50 QX-Lock plates are developed electrical that way, that they can be operated with high modern ST-211 Control units as well as with almost all older control unit models. The proven FEME contact plug gives the oportunity to operate the QX Lock as a single plate, as a multiple clamping table or on an external set-up place with plug questioning. 95

7 QX-HD70 The magnet clamping plate QX-HD70 is a version with 70 x 70mm Poles for operation of predominantly large work pieces. Available in heights 51mm or 68mm. QX-HD70 plates are compatible with the world s best sold magnet clamping systems for heavy-duty machining. Mounting slots on two sides and the ability to drill holes into the magnet clamping plate in many places supports a fast and flexible installation. The magnet clamping plate version with a height of 68mm can be back sided drilled until about 22mm deepness. QX-HD70 / Construction height 51mm Amount pols Control unit* MT QX 406 HD B MT QX 408 HD B MT QX 410 HD B MT QX 506 HD B MT QX 508 HD B MT QX 510 HD B MT QX 606 HD B MT QX 608 HD B MT QX 610 HD B QX-HD70 / Construction height 68mm Amount pols Control unit* MT QX 406 HD C MT QX 408 HD C MT QX 410 HD C MT QX 506 HD C MT QX 508 HD C MT QX 510 HD C MT QX 606 HD C MT QX 608 HD C MT QX 610 HD C *The letters wich are pointed out on these sites for the correct control units can be compared on page Messtechnik Spanntechnik Zerspanungstechnik

8 QX-RD50 These round magnet clamping plates with QX square poles suite perfectly for machining centers with rotary tables, for turning and milling operations. The QX RD magnet clamping plates are available in heights of 51mm or 68mm. Standard vice they come with a sided plug-connection as well as with grinding contacts for the shaft passage. QX-RD50 / Construction height 51mm Dia. (mm) Amount pols Control unit* MT QX-500 RD A, B MT QX-600 RD A, B MT QX-800 RD B MT QX-1000 RD B MT QX-1200 RD B QX-Block HD70 The QX-Block is an active, two-sided and flexible magnet clamping block. Each side is provided with two/four 70mm QX poles, that means with a total of 15.6 / 31.2 kn of clamping force. It can be used to mount work pieces in a flexible way or to avoid vibrations as an additional clamping element especially for higher fixtures. The standard construction height of 100,2mm can be reduced by 6mm. Fixed and mobile standard pole extensions can be used on both sides of the clamping block. Heights between 94mm and 240mm can be realized. The QX block can be operated with a ST 211 Feme controller or almost any standard 400 V reserve control unit. Over a junction box, more QX blocks can be operated simultaneously. QX-Block HD70 / Construction height 100,2mm 2 magnetic active sites! Amount pols Control unit* MT QX-Block C MT QX-Block C 97

9 ST Control units ST Control units are produced at latest state-of-the-art. They are all short-circuit-proofed and equipped with a power management to control the complete magnetization. Optionally single plates or whole tables can be switched. The integration into the machine control center is easily possible. The item ST 211 Grind is equipped with an 8-stage-retention force regulation as well as with a special demagnetize cycle for the operation of grinding plates. Control unit ST 120 Connection voltage: 230V 50HZ 16A / Plug: Ergon Input: 2m+Schuko / Output: pipe Shortcut Height (mm) Cable length (m) A MT ST 120 ER Control unit ST 211 / 212 / 214 Connection voltage: 400V 50HZ 25A Plug ST 211 ER: Ergon Plug ST 211 FEME, ST 212 FEME: FEME 4pol Plug ST 214 FEME: FEME 7pol Input: 3m+32 A CEE / Output: pipe Shortcut Height (mm) Cable length (m) Technical details Output voltage Impuls Housing IP 44 / Protection class 1 100% ED, 0-40 C Release contact for machine security B MT ST 211 ER C MT ST 211 FEME D MT ST 212 FEME E MT ST 214 FEME Messtechnik Spanntechnik Zerspanungstechnik

10 P O L E E X T E N S I O N S 99

11 Pole extensions: mobile / fixed Fixed and mobile pole extensions on square-pole clamping systems allow the clamping of wavy and warped metal parts. They adapt to the workpiece and keep it safe. The individual points of contact between magnetic chuck and workpiece can be defined individually. Single points of contact between the magnet clamping plate and the work piece can be defined individually. As a result the drilling and machining of inner edges is possible on magnetically clamped work pieces. Additional pole extensions can be mounted quickly or interfering ones removed. Like that each work piece has its individual fixture in no time. For fa 5-side machining the work piece can be set free with the help of pole extensions. Complex structures for hard to clamp work pieces can be added into the magnetic active surface with pole plates. They protect the magnet clamping plate from wear and damage. Pole extensions are made out of high-quality steel and have best magnet fluency characteristics. They are technically perfect and long-lasting. Vibration-free operation and clamping of work pieces Protection for the magnet clamping plate Flexible in the mounting height Interfering contours free milling and drill through is possible No vacuum adhesion between magnet clamping plate and workpiece Easy removal of the work piece also with high-alloyed / hardened materials. tip-free three point support with 3 fixed pole extensions and mobile pole extensions for automatic adaptation on the work piece. 100 Messtechnik Spanntechnik Zerspanungstechnik

12 Pole extensions: mobile / fixed Mobile pole extensions are used to clamp work pieces on their complete surface area without warping them. Due to the power of the magnet field, the bouncing, embedded upper part of the mobile pole extensions puts itself on the work piece and stabilizes it by turning on the power, without pulling the workpiece down. Especially for operating extensive and large parts, the clamping on magnet clamping plates with mobile pole extensions has been proven. Quick parallel roughing of the 1. face Turning and roughing of the 2. face Turning and finishing of the 1. face 101

13 Fixed Pole extensions Fixed pole extensions are used to specify the three-point contact when used in combination with mobile pole extensions or to fix stiff and even materials in a high position. By using a full equipped magnet clamping plate with fixed pole extensions, the plate is protected from wear and defects. Pole extensions can be re-milled again and again, in case they are damaged. Fixed Pole extensions / round Dia. (mm) Height (mm) MT PVR 50 H ±0,01 MT PVR 50 H ±0,01 MT PVR 70 H ±0,01 MT PVR 70 H ±0,01 Fixed Ple extensions / square Height (mm) MT PVQ 50 H ±0,01 MT PVQ 50 H ±0,01 MT PVQ 50 H ±0,01 MT PVQ 70 H ±0,01 MT PVQ 70 H ±0,01 MT PVQ 70 H ±0, Messtechnik Spanntechnik Zerspanungstechnik

14 Mobile Pole extensions Mobile pole extensions with a square design are screwed down the the magnet clamping plate by using an Allen wrench. The surface is sandblasted and electrolytically plated. for Pol size Height (mm) MT MP 50 H (-3/+3) MT MP 70 H 45 70/ (-4,5/+5,5) RMP Pole extensions RMP pole extensions are simply screwed down to the magnet clamping plate by hand over a turned thread-stud (M8x10mm). The surface of the RMP pole extension is fully machined and chemically nickel plated. The magnetic performance is compared to square standard pole extensions higher by about 20%. The closed construction design prevents the penetration of dirt and chips. The round design generates an only vertical hub. The clamping surface is sandblasted to increase the friction of the RMP. for Pol size Dia. (mm) Height (mm) MT RMP 78 70/ (-5/+2,5) MT RMP (-2,5/+2,5) 103

15 innotool austria GmbH & CoKG Oberhub Altach Austria T F office@innotool-austria.com