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CN-224223274-U - Milling machine fixture

CN224223274UCN 224223274 UCN224223274 UCN 224223274UCN-224223274-U

Abstract

The application discloses a milling machine fixture which comprises a clamping sleeve and a positioning pin. When the square shaft section of the rod piece is processed, the jacket is sleeved at the first end of the rod piece, the jacket is rotated to enable the locating hole of the mounting cylinder of the jacket to be aligned with the unthreaded hole of the first end of the rod piece, the locating pin is inserted into the unthreaded hole of the rod piece through the locating hole, at the moment, the jacket is connected with the rod piece, one end of the rod piece with the jacket is clamped into the chuck of the milling machine, and as the first datum plane is arranged on the datum cylinder of the jacket and is perpendicular to the central axis of the locating hole, the square shaft section can be accurately processed at the second end of the rod piece by taking the first datum plane as a reference. And when the square shaft section is processed, the rod piece with the jacket is detached from the chuck of the milling machine, the positioning pin is detached, and the jacket is removed, so that the rod piece processing can be completed. The milling machine fixture has the advantages of simple structure, low manufacturing cost and strong universality, and can save materials, shorten the processing time, reduce the cost and improve the efficiency.

Inventors

  • YANG MIN
  • WANG YUANFEI
  • SHI CHENGJIN
  • KANG YAN
  • Hao Zehui

Assignees

  • 西安昆仑工业（集团）有限责任公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (9)

  1. 1. A milling machine fixture for assisting in machining a first end and a second end of a rod (1), wherein the first end of the rod (1) is provided with an annular flange (101), a rectangular groove (102) perpendicular to the central axis of the rod (1) is arranged on one side of the annular flange (101) away from the center of the rod (1), an optical hole (103) perpendicular to the groove bottom of the rectangular groove (102) is arranged in the middle of the rectangular groove (102), a square shaft section (104) concentric with the first end is arranged at the second end of the rod (1), and an included angle between one side surface of the square shaft section (104) and the groove bottom of the rectangular groove (102) is 45 degrees, and the milling machine fixture is characterized by comprising a jacket (2) and a positioning pin (3); The jacket (2) comprises a datum cylinder (201) and a mounting cylinder (202) which are connected into a whole and have a common central axis, the outer side surface of the datum cylinder (201) is provided with a first datum plane (2011), the inner diameter of the mounting cylinder (202) is matched with the diameter of the first end of the rod piece (1), the mounting cylinder is provided with a radial positioning hole (2021), and the central axis of the positioning hole (2021) is perpendicular to the first datum plane; the locating pin (3) comprises a check rod (301) and a locating rod (302) connected to one end of the check rod (301), the outer diameter of the locating rod (302) is matched with the unthreaded hole (103), and the diameter of the check rod (301) is larger than that of the locating rod (302); Wherein, after the mounting cylinder (202) is sleeved on the first end of the rod piece (1), the positioning rod (302) is inserted into the unthreaded hole (103), and the stop rod (301) is positioned in the positioning hole (2021).
  2. 2. The milling machine fixture according to claim 1, wherein the reference cylinder (201) has a first axially extending deformation groove (2012), the mounting cylinder (202) has a second axially extending deformation groove (2022) thereon, and a central plane of the first deformation groove (2012) and a central plane of the second deformation groove (2022) are coplanar.
  3. 3. The milling machine fixture according to claim 2, characterized in that the inner diameter of the reference cylinder (201) is larger than the outer diameter of the annular flange (101), the inner wall of the reference cylinder (201) forms an inner step with the inner wall of the mounting cylinder (202), and the step surface of the inner step is at a larger distance from the central axis of the positioning hole (2021) than the side surface of the annular flange (101) close to the optical hole (103) is from the central axis of the optical hole (103).
  4. 4. A milling fixture according to claim 3, characterized in that the outer side of the reference cylinder (201) also has a second reference plane (2013), and that the second reference plane (2013) is parallel to the first reference plane (2011).
  5. 5. The milling machine fixture according to claim 4, wherein the outer side surface of the reference cylinder (201) further has a third reference plane (2014) and a fourth reference plane (2015) parallel to each other, the third reference plane (2014) being perpendicular to the first reference plane (2011).
  6. 6. Milling machine fixture according to claim 1, characterized in that the stop rod (301) is in a clearance fit with the locating hole (2021) and that the single-sided clearance between the stop rod (301) and the locating hole (2021) is 0.1-0.2mm.
  7. 7. The milling machine fixture according to claim 1, characterized in that the outer side surface of the detent lever (301) has a taper gradually decreasing in diameter towards the detent lever (302).
  8. 8. The milling fixture according to claim 1, wherein the mounting cylinder (202) is in a clearance fit with the first end and the single-sided clearance between the mounting cylinder (202) and the first end is 0.1-0.2mm.
  9. 9. The milling machine fixture according to claim 2, characterized in that the groove width of the first deformation groove (2012) and the groove width of the second deformation groove (2022) are equal, and the groove width of the first deformation groove (2012) and the groove width of the second deformation groove (2022) are equal to or larger than 0.4mm.

Description

Milling machine fixture Technical Field The application relates to the technical field of machining tool included angles, in particular to a milling machine fixture. Background In machining, one type of component is a solid of revolution component, and referring to fig. 1, the solid of revolution component is a rod 1, the rod 1 has a first end and a second end, the first end of the rod 1 has an annular flange 101, a rectangular groove 102 perpendicular to a central axis of the rod 1 is arranged on one side of the annular flange 101 away from the center of the rod 1, an optical hole 103 perpendicular to a bottom of the rectangular groove 102 is arranged in the middle of the rectangular groove 102, a square shaft section 104 concentric with the first end is arranged at the second end of the rod 1, and an included angle between one side surface of the square shaft section 104 and the bottom of the rectangular groove 102 is 45 degrees. The two ends of the part have processing requirements and direction requirements, one end of the rod piece is exposed outside the three-jaw chuck during processing, the other end of the rod piece is arranged in the three-jaw chuck of the four-axis machine tool, and the direction of the rod piece cannot be seen. The disadvantage of this processing is particularly pronounced. Disclosure of utility model The embodiment of the application provides a milling machine fixture, which can solve the technical problems of material waste and process extension caused by lengthening a retaining process when processing a plurality of revolving body parts in the prior art, and the technical scheme is as follows: A milling machine fixture for assisting in machining a first end and a second end of a rod. The first end of the rod piece is provided with an annular flange, one side of the annular flange, which is away from the center of the rod piece, is provided with a rectangular groove perpendicular to the central axis of the rod piece, the middle part of the rectangular groove is provided with an unthreaded hole perpendicular to the bottom of the rectangular groove, the second end of the rod piece is provided with a square shaft section which is concentric with the first end, and an included angle between one side surface of the square shaft section and the bottom of the rectangular groove is 45 degrees. The milling machine fixture comprises a jacket and a locating pin. The jacket comprises a datum cylinder and a mounting cylinder which are connected into a whole and are coaxial, a first datum plane is arranged on the outer side face of the datum cylinder, the inner diameter of the mounting cylinder is matched with the diameter of the first end of the rod piece, a radial positioning hole is formed in the mounting cylinder, and the central axis of the positioning hole is perpendicular to the first datum plane. The locating pin comprises a rotation stopping rod and a locating rod connected to one end of the rotation stopping rod, the outer diameter of the locating rod is matched with the unthreaded hole, the diameter of the rotation stopping rod is larger than that of the locating rod, and when the mounting cylinder is sleeved on the first end of the rod piece, the locating rod is inserted into the unthreaded hole, and the rotation stopping rod is located in the locating hole. Optionally, the reference cylinder is provided with a first deformation groove extending along the axial direction, the mounting cylinder is provided with a second deformation groove extending along the axial direction, and the central surface of the first deformation groove and the central surface of the second deformation groove are coplanar. Optionally, the inner diameter of the reference cylinder is larger than the outer diameter of the annular flange, the inner wall of the reference cylinder and the inner wall of the mounting cylinder form an inner step, and the distance between the step surface of the inner step and the central axis of the positioning hole is larger than the distance between the side surface of the annular flange, which is close to the unthreaded hole, and the central axis of the unthreaded hole. Optionally, the outer side surface of the reference cylinder further has a second reference plane, and the second reference plane is parallel to the first reference plane. Optionally, the outer side surface of the reference cylinder further has a third reference plane and a fourth reference plane parallel to each other, and the third reference plane is perpendicular to the first reference plane. Optionally, the stop rod is in clearance fit with the locating hole, and the unilateral clearance between the stop rod and the locating hole is 0.1-0.2mm. Optionally, the outer side surface of the stop rod has a taper gradually decreasing toward the diameter of the positioning rod. Optionally, the mounting cylinder is in clearance fit with the first end, and the unilateral clearance between the mounting cylinder and the