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1st Machine Tool Accessories has helped automation company Univer to reduce setup times and increase productivity by providing Chick Multi-Loks, which offer tombstone-type workholding for the rigid clamping of components.

There are currently three Chick Multi-Loks in use at Univer’s Bradford factory. Two are mounted vertically on rotary tables on the pallets of a 2APC Doosan horizontal machining centre, while the other is indexed horizontally on a Haas VF6 vertical machining centre fitted with the manufacturer’s own rotary indexer and a tailstock.

On each face of a Multi-Lok, there is either a single-station or a dual-station jaw set that uses Chick’s Qwikchange snap-on/snap-off interface. For maximum productivity and extended periods of unattended machining, components are set up on all four faces of a Multi-Lok. However, there are occasions when Univer uses only two opposing faces, such as if components are longer than the tombstone width and overhang the sides.

Machinable aluminium Qwikchange jaws are used across the three Multi-Loks and also eight Chick Qwik-Lok workholding arrangements on the shop floor at Univer. Such jaws allow parts of irregular shape to be held more securely and heavier cuts to be taken compared with if hard jaws are used.

The Chick Qwik-Loks at Bradford have the same quick-change snap-on/snap-off jaws as are used on each face of a Multi-Lok, allowing considerable flexibility across the different fixturing platforms.

Key benefits of product application

  • According to Univer’s production manager, it used to take the company three-and-a-half hours to set up all four faces of the existing tombstone. However, with the Multi-Lok, it is now four to five times quicker to set, while changeover takes typically three quarters of an hour, meaning that the machining centres are more productive and unit manufacturing costs are lower.
  • Components are held more securely in the Chick Multi-Lok than in conventional fixtures, resulting in better-milled finishes, especially when machining stainless steel, including Duplex.
  • The absence of vibration also prolongs tool life, leading to further savings.
  • The round and diamond locations when mounting onto a Chick foundation plate give a high degree of clamping repeatability and consistency of machining from one batch to the next.
  • With dual-station jaw sets, turning a single handle causes two moveable jaws to be squeezed from either end against a common fixed jaw at the centre, cancelling the opposing forces and providing a reliable reference point.
  • If components are small enough for dual-station jaws to be used, more productive options are available, such as accessing extra faces in a single production cycle and minimising the number of tool changes for machining a given number of parts.

1st Machine Tool Accessories

1st Machine Tool Accessories Ltd specialises in high quality workholding equipment and associated products from the world’s leading producers.

1st Machine Tool Accessories Ltd specialises in high quality workholding equipment and associated products from the world’s leading producers.

1st MTA:

·         provides technical assistance via trained representatives including site visits and demonstrations where possible;

·         is constantly expanding and updating the product range to give customers the best possible choice;

·         offers bespoke/customised solutions;

·         provides the easiest and most efficient way to order all your machine tools and accessories by phone, fax or on-line.

The product range includes:

·         Kitagawa:

o   Chucks: power, collet, manual, speciality and all accessories.

o   Cylinders: hydraulic and pneumatic.

o   NC Rotary Tables.

o   Vises: precision machine.

·         Fixturing and Clamping Parts.

·         Collets:

o   Varibore,

o   Spring,

o   Emergency

o   Pull back.

·         Chick Workholding: the leader in modern workholding for modern CNC machines.

·         Brighetti Reduction Bushes:

o   Slotted

o   Cylindrical

o   Conical

o   Elastic

o   Fixed by dowels.

·         OK Vise: low-profile clamping.

·         Mitee Bite: versatile, cost-effective clamping – fast and easy operation.

·         Cooljet High Pressure Coolant.

·         Magnetic Filtration

·         Bison:

o   Chucks: manual and power;

o   Hydraulic/pneumatic cylinders;

o   Precision machine and bench vises;

o   Rotary tables and indexing fixtures

·         Abbott Workholding:

o   Pie jaws;

o   Tooling columns.

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