For the flexible jig bushing of lathe

For the flexible jig bushing of lathe

  • CN 102,216,006 B
  • Filed: 10/15/2008
  • Issued: 09/23/2015
  • Est. Priority Date: 10/15/2008
  • Status: Active Grant
First Claim
Patent Images

1. the guide pin bushing for lathe (1), comprise at least two blocks (2) respectively with two truncated conical end (2E), each piece is connected with adjacent block by elastic device (3), to form the rotating body around given figure axis (1A), described body has the central opening (10) allowing cylindrical bar to be processed to pass through, each elastic device in described elastic device (3) all axially extends along described axis (1A) in the accommodation section of described guide pin bushing (8)It is characterized in that, described elastic device is the form of tenon block (3), described tenon block (3) have visible surface (3T) and with described visible surface relatively and the inner surface contacted with described accommodation section (8), the end (3E) of the inclination that (3M) and both sides thereof extend out in the middle part of described tenon block (3) comprises, wherein, described middle part (3M) and the end (3E) tilted of described tenon block (3) correspond respectively to middle part (2M) and the truncated conical end (2E) of two adjacent blocks (2) that described tenon block (3) is connected, described truncated conical end (2E) extends on the both sides at the described middle part (2M) of described two adjacent blocks, and, the rib (7E) of described visible surface (3T) (2) middle notch (5) arranged relative to each piece of this tenon block is recessed slightly, described accommodation section (8) is opposite and obtain by the described notch (5) of adjacent two blocks (2), so that under the state that described guide pin bushing (1) is closed, the described visible surface (3T) of this tenon block flushes at least approx and partly with the profile of described guide pin bushing, but do not stretch out the profile of described guide pin bushing, wherein, described notch (5) comprises the transition face (6) orthogonal with the longitudinal axis of described guide pin bushing (1) (1R), and the described inner surface of described tenon block contacts with the accommodation section (8) on the described transition face (6) of described notch (5).

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