3results about How to "With anti-pinch function" patented technology

The utility model relates to the technical field of lathe fixtures, and discloses a lathe fixture with an anti-pinch function, which comprises a connecting seat, a clamping part is arranged in the connecting seat, according to the lathe fixture with the anti-pinch function, when a clamping block abuts against the surface of a pipe, the clamping block is subjected to counter-acting force and pushes a supporting rod, and the clamping block is clamped on the supporting rod. A reset spring is compressed, when a supporting rod is pushed, an inclined rod is pushed, the inclined rod abuts against a push rod and rotates to a certain degree at the hinged position, and therefore the inclined rod pushes the push rod to move downwards, and when the push rod moves downwards, a clamping plate hinged to the bottom of the push rod is inserted into a limiting hole formed in the surface of a limiting strip; the clamping plates abut against each other through abutting of the limiting blocks, so that the clamping blocks cannot continue to move, the threaded sleeves cannot continue to move, then the threaded rods and the rotating columns cannot continue to rotate, a worker stops rotating when knowing that the maximum clamping force is reached, and the situation that the pipe is sunken, deformed and damaged due to continuous clamping is prevented.

This invention discloses a quick-change device for a oscillating saw blade. An oscillating sleeve is vertically mounted in the inner cavity of the machine housing via bearings. An oscillating shaft is vertically movably inserted into the oscillating sleeve. The upper end of the oscillating shaft extends upwards from the upper end of the oscillating sleeve, and the lower end extends downwards from the lower end of the oscillating sleeve and is fixedly connected to a connecting block. The insertion end of the saw blade is inserted between the connecting block and the oscillating sleeve. A clamping structure is provided between the oscillating shaft and the oscillating sleeve to press and lock the insertion end of the saw blade between the connecting block and the oscillating sleeve. An unlocking structure is provided between the oscillating shaft and the machine housing to release the clamping force of the connecting block on the insertion end of the saw blade. A locking structure is provided between the button and the machine housing to lock the button in a horizontal position. An anti-pinch structure is provided between the button and the machine housing. This device has a simple and compact structure, is easy to use and operate, allows for quick saw blade replacement, and has an anti-pinch function.

According to the technical scheme, the synchronous roll-over stand with the anti-pinch function is characterized in that a first connecting piece is perpendicular to a mounting frame and hinged to the lower end of a second connecting piece, the upper end of the second connecting piece is hinged to one end of a third connecting piece, and the other end of the third connecting piece is hinged to the lower end of a roll-over support; the middle section of the third connecting piece is hinged to the mounting frame, the two ends of the first tension spring are fixed to the overturning support and the third connecting piece respectively, one end of the second tension spring is fixed to the upper end of the mounting frame, the other end of the second tension spring is fixed to the first connecting piece or the second connecting piece, a limiting piece is arranged on the third connecting piece, and a positioning bayonet is formed in the lower end of the overturning support; according to the roll-over stand, the bending procedure in the production and machining process is simplified, the production and assembly efficiency is high, the part accuracy is high, the structure is symmetrical, the roll-over stand is highly synchronous, the problems that a table board is clamped and the edge of an opening is scraped in practical application are solved, and meanwhile the roll-over stand has a flexible anti-pinch function.