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CN-121989066-A - Aviation steering engine casing processing positioning reference block

CN121989066ACN 121989066 ACN121989066 ACN 121989066ACN-121989066-A

Abstract

The invention provides a positioning reference block for processing an aviation steering engine shell, which relates to the field of processing of aviation steering engine shells, and comprises a reference seat main body; four mounting threaded holes are formed in the base seat main body in a rectangular array shape, a guide seat is fixedly connected to the top end face of the base seat main body in the middle, a sliding seat is arranged outside the guide seat, a sliding groove is formed in the bottom end face of the sliding seat, the guide seat is slidably connected in the sliding groove, a positioning block is arranged on the top end face of the sliding seat, two auxiliary grooves are symmetrically formed in the top end face of the positioning block, and a connecting seat is fixedly connected to the bottom end face of the positioning block. The positioning block can be taken down and replaced by pushing the sliding handle and then separating the limiting inserted bar from the connecting seat through a series of transmission, so that the problem that after the positioning block is damaged, only the whole reference block is scrapped, the reference seat without damage is wasted and the maintenance cost of the positioning reference block is increased is solved.

Inventors

  • ZHANG YOUZHI
  • WANG QI
  • LIU WEIJUN
  • ZHANG RUI
  • LI JIN

Assignees

  • 江苏迈信林航空科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260127

Claims (10)

  1. 1. The aviation steering engine shell machining positioning reference block comprises a reference seat main body (1), four mounting threaded holes (101) are formed in the reference seat main body (1) in a rectangular array mode, and is characterized in that a guide seat (102) is fixedly connected to the top end face of the reference seat main body (1) in the middle, a sliding seat (103) is arranged outside the guide seat (102), a sliding groove (105) is formed in the bottom end face of the sliding seat (103), the guide seat (102) is connected in the sliding groove (105) in a sliding mode, a positioning block (110) is arranged on the top end face of the sliding seat (103), two auxiliary grooves (112) are symmetrically formed in the top end face of the positioning block (110), a connecting seat (109) is fixedly connected to the bottom end face of the positioning block (110), the connecting seat (109) is spliced in the sliding seat (103), a connecting box (120) is fixedly connected to the rear end face of the sliding seat (103), a guide chute (104) is formed in the middle in the top end face of the guide seat (102), the guide chute (104) is of a rectangular groove structure, and the guide chute (104) is connected in the sliding mode, and the guide chute (106) is fixedly connected to the guide chute (106) in the middle.
  2. 2. The aviation steering engine shell processing positioning reference block according to claim 1 is characterized in that two groups of blanking grooves (111) are symmetrically formed in the top end surface of the positioning block (110), positions of the two groups of blanking grooves (111) are aligned, and notches of the two groups of blanking grooves (111) face the outer side of the positioning block (110).
  3. 3. The aviation steering engine shell processing positioning reference block of claim 1, wherein an elastic boss (116) is arranged on the top end surface of the positioning block (110), and the elastic boss (116) is of a rectangular block structure made of polyether-ether-ketone engineering plastics.
  4. 4. The aviation steering engine housing processing positioning reference block according to claim 1, wherein the top end face of the elastic boss (116) is provided with a wear-resistant lining (118), and the wear-resistant lining (118) is of a rectangular structure made of polytetrafluoroethylene.
  5. 5. The aviation steering engine housing processing positioning reference block according to claim 1 is characterized in that two limiting inserting blocks (117) are symmetrically and fixedly connected to the bottom end face of the elastic boss (116), the two limiting inserting blocks (117) are respectively inserted into two auxiliary grooves (112), one fixing sliding block (113) is slidably connected into each of the two auxiliary grooves (112), one group of locking inserting rods (114) are fixedly connected to the inner sides of the two fixing sliding blocks (113), the tail ends of the two groups of locking inserting rods (114) are respectively inserted into the two limiting inserting blocks (117), one group of connecting springs (115) are fixedly connected to the outer sides of the two fixing sliding blocks (113), and the tail ends of the two groups of connecting springs (115) are respectively and fixedly connected into the two auxiliary grooves (112).
  6. 6. The aviation steering engine shell processing positioning reference block is characterized in that a control screw rod (107) is rotatably connected to the guide seat (102), a control knob (108) is coaxially and fixedly connected to the rear portion of the control screw rod (107), and a guide sliding block (106) is in threaded connection with the outside of the control screw rod (107).
  7. 7. The aviation steering engine housing processing positioning reference block according to claim 1 is characterized in that a sliding handle (121) is connected to the rear portion of a connecting box (120) in a sliding mode, an auxiliary sliding seat (122) is fixedly connected to the tail end of the sliding handle (121), the auxiliary sliding seat (122) is connected to the connecting box (120) in a sliding mode, a plurality of groups of fixing springs (123) are fixedly connected to the inner side of the auxiliary sliding seat (122), and the tail ends of the plurality of groups of fixing springs (123) are fixedly connected to the connecting box (120).
  8. 8. The aviation steering engine housing processing positioning reference block according to claim 1 is characterized in that two connecting swing rods (124) are symmetrically hinged to the outer portion of the auxiliary sliding seat (122), the tail ends of the two connecting swing rods (124) are respectively hinged to a sliding plate (125), and the two sliding plates (125) are both connected in the sliding seat (103) in a sliding mode.
  9. 9. The aviation steering engine housing processing positioning reference block according to claim 1 is characterized in that a group of limiting inserting rods (126) are fixedly connected to the inner sides of two sliding plates (125), the two groups of limiting inserting rods (126) are slidably connected in a sliding seat (103), and the tail ends of the two groups of limiting inserting rods (126) are inserted in a connecting seat (109).
  10. 10. The aviation steering engine housing processing positioning reference block according to claim 1, wherein four buffer pads (119) are fixedly connected to the outer part of the reference seat main body (1) in a rectangular array shape.

Description

Aviation steering engine casing processing positioning reference block Technical Field The invention relates to the technical field of aviation steering engine shell processing, in particular to an aviation steering engine shell processing positioning reference block. Background In the course of aviation steering engine casing processing, in order to confirm the accurate processing benchmark of aviation steering engine casing on the frock, guarantee aviation steering engine casing's dimensional accuracy, can install the location benchmark piece on the frock generally, provide unified, stable location reference for aviation steering engine casing on the frock, ensure the position of machined surface, avoid because of the processing deviation that no benchmark reference leads to, current location benchmark piece is usually by benchmark seat and locating piece constitution. For example, the utility model with the application number of CN202321150538.1 discloses a clamping and positioning tool for large-scale blade datum processing, which comprises a bottom plate, wherein a first datum block, a second datum block, a third datum block, a fourth datum block, a fifth datum block and a sixth datum block are sequentially arranged on the top surface of the bottom plate from one end to the other end, a first datum pin, a second datum pin and a third datum pin are respectively arranged on the side surfaces of the first datum block, the third datum block and the fourth datum block, a first positioning block and a second positioning block are respectively arranged on the top surface of the second datum block, a third positioning block is arranged on the side surface of the sixth datum block, and a pressing piece is arranged on the top surface of the bottom plate. However, in the processing process, the positioning block is used as a part directly contacted with the aviation steering engine shell, the damage problems such as abrasion of a positioning surface, deformation of corners and the like are easy to occur along with long-time use, and as the reference base and the positioning block are usually in a welded or integrally cast-formed non-detachable structure, after the positioning block is damaged, only the whole positioning reference block is scrapped, so that the reference base without damage is wasted, the maintenance cost of the positioning reference block is increased, and the positioning reference block is inconvenient to use. Disclosure of Invention In view of the above, the invention provides an aviation steering engine housing processing positioning reference block, which has the characteristic of being capable of quickly and independently replacing a reference seat and a positioning block. The invention provides a purpose and an effect of a positioning reference block for processing an aviation steering engine shell, which particularly comprises a reference seat main body, wherein four mounting threaded holes are formed in the reference seat main body in a rectangular array shape, a guide seat is fixedly connected to the top end surface of the reference seat main body in a centering manner, a sliding seat is arranged outside the guide seat, a sliding groove is formed in the bottom end surface of the sliding seat, the guide seat is slidably connected in the sliding groove, a positioning block is arranged on the top end surface of the sliding seat, two auxiliary grooves are symmetrically formed in the top end surface of the positioning block, a connecting seat is fixedly connected to the bottom end surface of the positioning block, the connecting seat is inserted in the sliding seat, a connecting box is fixedly connected to the rear end surface of the sliding seat, a guide sliding groove is formed in the middle of the top end surface of the guide seat, the guide sliding groove is in a rectangular groove structure, a guide sliding block is fixedly connected to the middle of the sliding groove, and the guide sliding block is slidably connected in the guide sliding groove. Furthermore, two groups of blanking grooves are symmetrically formed in the top end surface of the positioning block, the positions of the two groups of blanking grooves are aligned, and the notch of each of the two groups of blanking grooves faces the outer side of the positioning block. Further, an elastic boss is arranged on the top end surface of the positioning block, and the elastic boss is of a rectangular block structure made of polyether-ether-ketone engineering plastics. Furthermore, the top end surface of the elastic boss is provided with a wear-resistant lining, and the wear-resistant lining is of a rectangular structure made of polytetrafluoroethylene. Further, two limiting inserting blocks are symmetrically and fixedly connected to the bottom end face of the elastic boss, the two limiting inserting blocks are respectively inserted into the two auxiliary grooves, a fixing sliding block is slidably connected into the two auxiliary g