DOUBLE JAW VICE.

A coaxial concentric double-jaw vice comprises a base frame defining a longitudinal sliding groove, first and second movable jaws mounted on the base frame and movable along the sliding groove, a control rod set inserted through the first and second movable jaws and received in the sliding groove, a fixed screw rod mounted on the control rod set and screw-connected with the first movable jaw, a movable screw rod sleeved onto the control rod set and screw-connected with the second movable jaw and rotatable with the control rod set and movable axially along the control rod set by an external force, a clutch mounted in the control rod set, and a driving mechanism mounted in the control rod set and connectable to the control rod set by the clutch for rotating the control rod set.

WORKING OF DOUBLE JAW VICE

Vice has a pair of parallel, work-piece clamping jaw-members, which jaw-members are spaced laterally apart. … The second, floating jaw-member may be adjusted for holding the smaller-diameter portion of a long workpiece, while the fixed jaw-member holds and clamps the larger diameter portion of the same workpiece.

DOUBLE JAW VICE FOR HOLDING WORKPIECE 

Vice has a pair of parallel, work-piece clamping jaw-members, which jaw-members are spaced laterally apart. The first jaw-member is a semi-rigid one, while the second jaw-member is completely slidable as an integral unit, and also allows for the two jaw-elements thereof of which it is comprised to be movable toward and away from each, whereby the second jaw-member may be used separately to hold a workpiece and may be used in conjunction with the first jaw-member for assisting the first jaw-member in firmly and safely clamping a workpiece in order to provide a more stable holding of the workpiece during the working thereof. The second, floating jaw-member may be adjusted for holding the smaller-diameter portion of a long workpiece, while the fixed jaw-member holds and clamps the larger diameter portion of the same workpiece. The second workpiece may be used alone for holding and clamping workpieces that are more difficult to grip, or the like, and also may be used for holding a tool, or similar article, while the first, semi-rigid jaw-member clamps a workpiece associated with the tool being clamped by the floating jaw-member.

DESCRIPTION 

Commercial double jaw vices are basically similar, commonly comprising a fixed jaw and a movable jaw movable along the top side of the vice by a screw rod so that the workpiece can be held firmly by the fixed jaw and the movable jaw. However, after the workpiece is clamped in the vice, an extra pressure must be applied to rotate the screw rod further and to enhance the clamping force. At this time, the workpiece may receive an overpressure, resulting in a bad effect. To avoid this problem, the invention studied the use of a clutch and a driving mechanism in a vice.

TYPE OF DOUBLE VICE JAW

two types of vice

1 Technical field

The utility model relates to a kind of pair of jaw type vice, is specifically related to a kind of vice that can carry out the two sides clamping or vertically bend sheet member.

2 Background technology

Nowadays in engineering machinery production and university’s experimental facilities, vice is as a kind of indispensable instrument of pincers worker processing, but still exist some to the deficiency of demand on function, to carry out the vertical clamping in the two sides workpiece of processing and the sheet member that need to bend as many, will realize that under the condition that there is no special tool(s) or lathe the processing of workpiece is processed very difficult.

TOOLS 

• Angle Grinders
• Ball pen Hammer
• The Bench vise
• Rules 
• Pillar drill
• Flat File
• Lathe 
• Arc Weld

IN CASE KIND OF PROJECTS

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