• MMS Youtube
  • MMS Facebook
  • MMS Linkedin
  • MMS Twitter
12/2/2004 | 1 MINUTE READ

Tombstones For High Density Workholding

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

ToolBlox modular tombstones, available in 2-face and 4-face models, provide options for designing and building high density workholding for high speed horizontal machining centers (HMC).

Built of A36 HRS steel, they weigh 30-40 percent less than many cast iron tombstones. According to the company, this rigidity achieves workpiece immobility, while dampening cutter- induced vibration using high speed spindles.

The tombstones can accommodate a range of workholding devices, including most of the company’s single-station, double-station and multiple-station vises, and those which are manual or hydraulically actuated. They are also equipped to handle a range of clamps and modular fixturing including customized workholding devices and hydraulic components. The bolt holes and dowel patterns on each face allow for the installation and removal of subplates and components.

Two sizes of the 2-face model are available: a 400-mm square base with 320 mm × 25" mounting faces and an estimated weight of 147.9 kgs (326 lbs) and a 500-mm square base with 400 mm × 28" mounting faces and estimated weight of 247.7 kgs (546 lbs).

The 4-face model is also offered in two sizes: a 400-mm square base with 320 mm × 25" mounting faces, and an estimated weight of 111.1 kgs (245 lbs) and a 500-mm square base with 400 mm ×28" mounting faces, with an estimated weight of 163.8 kgs (361 lbs). (The estimated weights include the aluminum subplates.)




  • A Study Of The Steady Rest

    When the length and stiffness of a workpiece make it difficult to machine without distorting or deflecting the part, many manufacturers turn to the steady rest as a workpiece support device. This is especially true for long axles, shafts and similar parts used in automotive or heavy equipment applications, and in oil drilling components. The most common application is to support a workpiece during turning or milling and, increasingly, during secondary operations such as ID drilling, boring and producing end face bolthole patterns.

  • Pins: The Alternative To Parallels

    These vise jaws use protruding, mechanical pins to repeatedly support workpieces either horizontally or at angles. They are said to allow quicker setups than conventional parallels.

  • Is Magnetic Workholding For You?

    Holding metal parts with magnets is migrating from surface grinding to broader application in general metalworking processes, especially milling. Advances in magnetic technology are causing many shops to re-evaluate how they hang on to workpieces. Here’s a look at how magnets may be a viable workholding solution for your shop.

Related Topics