Fixing device for stamping equipment

Abstract

A fixing device for a stamping machine includes a slide table and a punch with a positioning groove inserted into the slide table. The fixing device includes a positioning wedge block movable vertically on the slide table and located directly above the positioning groove; a locking member on the slide table and above the positioning wedge block; at least one reset member located below the positioning wedge block and pushed upwards against the positioning wedge block by an elastic restoring force; and a power source. The power source can drive the locking member to press the positioning wedge block, causing the positioning wedge block to be locked in the positioning groove and thus positioning the punch. This fixing method not only eliminates the need for tools and screws, but also ensures that the force applied to the locking member is a fixed value, stably maintaining the punch in its position.

Claims

1. A fixing device for a stamping machine, the stamping machine comprising a slide table and a punch having a positioning groove and detachably inserted into the slide table along an installation direction, the fixing device comprising: a positioning wedge block movably disposed on the slide table and located directly above the positioning groove; and a locking member disposed on the slide table and located above the positioning wedge block; At least one reset member is disposed below the positioning wedge and pushes upward against the positioning wedge through elastic restoring force; and a power source is controllable to drive the locking member to switch between a locked position and an unlocked position relative to the slide. When the locking member is in the locked position, the power source drives the locking member to press downward against the positioning wedge and compress the at least one reset member, so that the positioning wedge extends downward into the positioning groove to prevent the punch from moving relative to the slide along the mounting direction. When the locking member is in the unlocked position, the power source no longer drives the locking member, and the at least one reset member pushes upward against the positioning wedge, so that the positioning wedge moves upward out of the positioning groove to allow the punch to move relative to the slide along the mounting direction.

2. The fixing device for the stamping equipment as described in claim 1, wherein, The locking member includes a cam portion, two spindle portions extending outward from the cam portion in a horizontal direction perpendicular to the mounting direction and pivotally mounted on the slide, and a connecting portion extending radially from the cam portion. When the locking member is in the locked position, the power source presses down on the connecting portion, and the at least one reset member pushes upward against the positioning wedge. When the locking member is in the unlocked position, the power source no longer presses down on the connecting portion, and the at least one reset member still pushes upward against the positioning wedge.

3. The fixing device for the stamping equipment as described in claim 2, wherein, The locking member also includes an operating part that is spaced apart from the linkage part along the circumference of the cam part and extends radially along the cam part.

4. The fixing device for the stamping equipment as described in claim 1, wherein, The power source includes a pressure cylinder disposed on the slide and located on one side of the locking member in a horizontal direction perpendicular to the installation direction, a support rod extending upward from the pressure cylinder, a cantilever disposed on the support rod and extending radially along the support rod, and a pressing member extending downward from the end of the cantilever. The pressure cylinder can drive the support rod to extend, retract and rotate up and down, so that the pressing member is located directly above or away from the locking member.

5. The fixing device for the stamping equipment as described in claim 1, wherein, The power source is at least one of the following: human power, pneumatic cylinder, electric cylinder, or hydraulic cylinder.

6. The fixing device for the stamping equipment as described in claim 1, wherein, The positioning wedge includes a pressure plate portion extending along the installation direction and pressed against by the locking member, and a block portion extending downward from the pressure plate portion toward the positioning groove.

7. The fixing device for the stamping equipment as described in claim 6, the punch including a sloping groove extending obliquely along the mounting direction, and a stop surface connecting the sloping groove and extending upward from the sloping groove, the sloping groove and the stop surface cooperating to define the positioning groove, wherein, The positioning wedge has a downward-facing inclined surface and an outer peripheral surface surrounding and connecting the inclined surface. When the locking member is in the locked position, the inclined surface contacts the inclined groove surface, and the stop surface is located outside the outer peripheral surface along the installation direction. When the locking member is in the unlocked position, the inclined surface is away from the inclined groove surface, and the bottom end of the outer peripheral surface is located above the stop surface.

Images