Disclosed are an upper jacking structure, a half-slitting machine and a half-slitting method. The upper jacking structure includes a lower jacking block, a cutting assembly, a first linear reciprocating device, an upper jacking block and an auxiliary tensioner. The lower jacking block is located below the upper jacking block, a clamping space is formed between the lower jacking block and the upper jacking block, a cutting end of the cutting assembly moves in a vertical direction and a horizontal direction in and out of the clamping space, a movable end of the first linear reciprocating device moves in the vertical direction, and the upper jacking block is provided on the movable end of the first linear reciprocating device; the upper jacking block has a first jacking surface provided with a first jacking head and a second jacking head at either side of a center line of the first jacking surface.
A grinding machine includes a conveying structure and a grinding structure, the conveying structure having first clamper sets for clamping a square rod. The grinding machine further includes a first top seat formed in at least one of the first clamper sets, and at least one second top seat formed in the grinding structure; the first top seat and the second top seat respectively abut against two opposite sides of the square rod; abutment surfaces of two first top seats are coplanar in a vertical plane, and are parallel to an abutment surface of the second top seat; a plane of the abutment surface of the first top seat is perpendicular to a plane of at least one abutment surface of the first clamper sets. The grinding machine according to the present disclosure may adjust the attitude of the square rod, thereby ensuring a stable grinding process.
B24B 41/00 - Component parts of grinding machines or devices, such as frames, beds, carriages or headstocks
B24B 19/08 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
3.
LOWER JACKING MEMBER, WIRE WITHDRAWAL METHOD, AND SQUARING MACHINE
Disclosed are a lower jacking member, a wire withdrawal method based on the lower jacking member, and a squaring machine including the lower jacking member. The lower jacking member is used for axially fixing a bottom surface of an edge scrap formed by cutting a round rod, and a bottom outline of the edge scrap has a cutting edge. The lower jacking member includes at least two single components, and drive structures independently connected to the single components. A spacing between at least one of the single components and the cutting edge is different from a spacing between the rest of the single components and the cutting edge; and the drive structures are used for driving tops of the single components to abut against the bottom surface of the edge scrap.
B28D 5/00 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor
B28D 5/04 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor by tools other than of rotary type, e.g. reciprocating tools
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