2results about How to "Guaranteed surface roughness" patented technology

The utility model discloses a kind of compressor impeller blade top grinding tool, belong to compressor impeller processing field.The tool, including annular fixed plate and transition shaft;The center of the fixed plate is equipped with the through-hole of installation transition shaft, the outer ring of through-hole is equipped with several notches for sliding of bed chuck jaw, it is equipped with several first locating hole, first mounting hole and second mounting hole on fixed plate, through the cooperation of positioning rod and first locating hole, fixed plate is positioned on bed chuck chuck, through the cooperation of first mounting hole, stud, T-shaped block and nut arranged on bed chuck chuck, fixed plate is fixed on bed chuck chuck;The transition shaft fixes impeller, and transition shaft is fixed on fixed plate.The utility model can be separately ground blade top to single impeller blade top, install the tool on multiple ordinary horizontal lathe, then multiple impellers can be simultaneously ground blade top, greatly shorten product manufacturing cycle, and can guarantee grinding accuracy and surface roughness.

The utility model discloses a die scraping device which is applied to a cold heading machine, the cold heading machine comprises a cold heading bottom module and a clamp module, and the die scraping device is characterized in that the die scraping device is fixed on the cold heading bottom module, the die scraping device comprises a support with a mounting hole, the support is provided with a torsional spring fixing piece used for being connected with a torsional spring in a sleeved mode, and the torsional spring fixing piece is provided with a clamping groove. A torsional spring fixing piece is arranged on the support, a scraping piece close to a die opening of the clamp module is rotatably fixed to the torsional spring fixing piece, a first positioning pin is arranged on the support, a second positioning pin is arranged on the scraping piece, and the torsional spring is fixedly installed through the first positioning pin and the second positioning pin. Due to the fact that the die scraping device is additionally arranged on the cold header, when impurities such as burrs are reserved on the die orifice of the clamp module and the whole clamp module moves, the scraping piece of the die scraping device can scrape the impurities such as the burrs, and therefore the surface roughness and the appearance of products can be guaranteed, and the yield is improved.