2results about How to "Avoid insufficient clamping force" patented technology

The utility model belongs to concrete guardrail unloading technical field, concretely relates to a kind of double-side grabbing type concrete guardrail unloading structure, including lifting support, and two clamping mechanisms that are symmetrical left and right are installed on lifting support, the clamping mechanism includes swing frame hinged on lifting support, swing frame drive assembly is connected between the upper end of swing frame and lifting support, the lower end of swing frame is fixedly connected with shaft seat, and turnover shaft is rotatably connected in shaft seat, one end of turnover shaft is connected with turnover shaft drive assembly, the other end of turnover shaft is fixedly connected with mounting seat, and clamping seat is hinged on mounting seat.The utility model can drive two swing frames to swing relatively by the action of two swing frame drive assemblies, to drive two clamping seats to clamp concrete guardrail, to realize the grabbing of concrete guardrail;By the action of two turnover shaft drive assemblies, two turnover shafts can be driven to rotate 180 °, i.e., concrete guardrail can be driven to overturn 180 °, to realize that the bottom surface of concrete guardrail is placed downward.

This utility model belongs to the field of fixture technology, and in particular to an adjustable fixture for drilling heat exchangers. It includes a worktable with mounting plates at the four corners of its top. A fixture body is mounted on the top of each mounting plate, and the fixture body is used to clamp the workpiece. Multiple positioning holes are arranged on the top of the worktable, and locking nuts are installed at the bottom of the mounting plates. By setting mounting plates at the four corners of the worktable top, and by having the locking nuts at the bottom of the mounting plates cooperate with the positioning holes on the top of the worktable and the bottom insert rods, this utility model allows the fixture body to be flexibly adjusted on the worktable according to the specific size, shape, and drilling position requirements of the heat exchanger workpiece. This design breaks the limitations of traditional fixtures with fixed positions. Whether it is small-area precision drilling of small heat exchanger workpieces or multi-position drilling of large workpieces, adaptation can be achieved by simply adjusting the position of the mounting plates.