Grinding fixture for movable cutters of shearing cutters

Abstract

The invention provides a grinding fixture for movable cutters of shearing cutters. The grinding fixture comprises a support seat, a clamping component and a limiting component. The support seat is provided with a horizontal bottom plate and a support upright plate, the horizontal bottom plate is connected with a machining table of a grinding machine, and the support upright plate is erected on the horizontal bottom plate; the clamping component comprises a fixed clamp plate and a movable clamp plate, the fixed clamp plate is fixed onto the support upright plate of the support seat, the movable clamp plate and the fixed clamp plate are matched with each other to clamp cutter bars of the movable cutters, a V-shaped groove is formed in the surface, which is opposite to the movable clamp plate, of the fixed clamp plate, and a trapezoidal clamp portion which is matched with the V-shaped groove is formed on the surface, which is opposite to the fixed clamp plate, of the movable clamp plate; the limiting component comprises an auxiliary support nail and a limiting pin, the auxiliary support nail is formed on the upper end surface of the fixed clamp plate, lower cutter surfaces of blades can be accessorily supported by the auxiliary support nail from the lower sides of the lower cutter surfaces of the blades, and the limiting nail can be in contact with cutter backs of the blades. The grinding fixture has the advantage that the movable cutters of the shearing cutters can be quickly and conveniently clamped by the grinding fixture.

Description

technical field [0001] The invention relates to a grinding jig for a moving knife of a shearing tool. Background technique [0002] At present, sewing machines are widely used in the clothing manufacturing industry, especially large-scale sewing machines used in factories, which are more widely used in production enterprises that manufacture clothing in batches. In such sewing machine production lines, sometimes it is necessary to sew the cloth while sewing. Carry out cutting, need a kind of shearing tool that sewing machine is used in such processing. Shearing knives include fixed knives and moving knives, such as figure 1 As shown, the movable knife is composed of a knife bar and a blade installed at one end of the knife bar, and the blade includes a lower knife surface in contact with the knife bar and an upper knife surface on the opposite side of the lower knife surface. [0003] For the blade of such a movable knife, since the upper knife surface cooperates with the ...

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Problems solved by technology

[0003] For the blade of such a movable knife, since the upper knife surface cooperates with the fixed knife to cut, it is necessary to grind the upper knife surface to ensure its flatness and sharpness. However, due to the irregular shape of the mobile knife as a whole, it is not It is easy to clamp the moving knife to process the upper surface of the blade, but there is no fixture for fast and convenient clamping of such a moving knife for grinding in the prior art

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