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CN-121972744-A - Nut tapping mechanism

CN121972744ACN 121972744 ACN121972744 ACN 121972744ACN-121972744-A

Abstract

The application discloses a nut tapping mechanism, which relates to the technical field of nut tapping and comprises 匚 grooves and a cross rod, wherein the 匚 grooves and the cross rod are used for limiting the horizontal position of an L-shaped tap, the L-shaped tap can shake in the horizontal direction, a hollow pipe and a rotating shaft are arranged, a workpiece, the hollow pipe and the rotating shaft synchronously rotate, the workpiece moves from one end of the hollow pipe to the other end, the workpiece is tapped in the hollow pipe, a clamping assembly comprises a connecting rod, a spherical roller and a power part, the power part controls the connecting rod to swing in the radial direction of the hollow pipe, the workpieces with different diameters are fixed, and the spherical roller is arranged so that the workpiece can conveniently move along the axis of the hollow pipe. The application has the advantages that the structure of directly driving the screw tap to rotate by the traditional motor is changed, in the application, the L-shaped screw tap is in a non-rotating state, the nut is in a self-rotating state, the nut enters from one end of the L-shaped screw tap and is discharged from the other end of the L-shaped screw tap, the screw tap reversing process is omitted, and the relative rotation of the nut and the L-shaped screw tap is utilized to carry out continuous tapping.

Inventors

  • LI XING
  • LI MING
  • Ren Zixiong
  • LIU CHAOJIAN

Assignees

  • 河北星哲紧固件制造有限公司

Dates

Publication Date
20260505
Application Date
20260402

Claims (9)

  1. 1. The nut tapping mechanism comprises a workpiece (1), an L-shaped screw tap (2), a first base (3), a second base (4) and a collecting box (5), and is characterized by further comprising; 匚 grooves (6) and a cross bar (7) for defining the horizontal position of the L-shaped tap (2), wherein the L-shaped tap (2) can shake in the horizontal direction; The hollow tube (8) and the rotating shaft (9), the workpiece (1), the hollow tube (8) and the rotating shaft (9) synchronously rotate, the workpiece (1) moves from one end of the hollow tube (8) to the other end, and the workpiece (1) is tapped in the hollow tube (8); the clamping assembly comprises a connecting rod (10), a spherical roller (11) and a power part (12), wherein the power part (12) controls the connecting rod (10) to swing in the radial direction of the hollow tube (8) to fix workpieces (1) with different diameters, and the spherical roller (11) is arranged to facilitate the workpieces (1) to move along the axis of the hollow tube (8).
  2. 2. The nut tapping mechanism as claimed in claim 1, wherein the second base (4) is provided with a first hydraulic rod (21), the 匚 groove (6) is arranged at the telescopic end of the first hydraulic rod (21), the transverse rod (7) is arranged at the lower end of the 匚 groove (6), and one end of the L-shaped tap (2) passes through the transverse rod (7) downwards.
  3. 3. The nut tapping mechanism as claimed in claim 2, wherein a seat (31) is mounted on the upper surface of the first base (3), a round hole (32) is formed in the side wall of the seat (31), a first bearing (33) is mounted on the inner side of the round hole (32), the rotating shaft (9) is mounted on the inner side of the first bearing (33), a first cylindrical cavity (34) is formed in one end of the rotating shaft (9), a second cylindrical cavity (35) is formed in the other end of the rotating shaft (9), the diameter of the first cylindrical cavity (34) is larger than that of the second cylindrical cavity (35), and the hollow tube (8) is fixedly connected with the second cylindrical cavity (35).
  4. 4. The nut tapping mechanism according to claim 3, wherein the side walls of the two ends of the hollow tube (8) are provided with a plurality of sector holes (41), the sector holes (41) are axially arranged in a group, the connecting rod (10) is hinged in the sector holes (41), one end of the connecting rod (10) is provided with a limiting plate (42), the limiting plate (42) is positioned on the inner side of the hollow tube (8), the spherical roller (11) is arranged on the limiting plate (42), the surface of the spherical roller (11) is provided with hard protrusions (43), the rotation direction of the spherical roller (11) is consistent with the movement direction of the workpiece (1), the power part (12) is arranged at the other end of the connecting rod (10), the power part (12) is positioned on the outer side of the hollow tube (8), and a torsion spring (44) is arranged between the connecting rod (10) and the sector holes (41).
  5. 5. The nut tapping mechanism as claimed in claim 4, wherein the connecting rod (10) is zigzag-shaped, and the power part (12) comprises a weight (51) installed at one end of the connecting rod (10).
  6. 6. The nut tapping mechanism as claimed in claim 4, wherein the connecting rod (10) is L-shaped, the power portion (12) comprises an air bag (52) installed inside the cylindrical cavity one (34), a roller (53) is installed at one end of the connecting rod (10), and the roller (53) abuts against the inner side of the air bag (52).
  7. 7. The nut tapping mechanism as claimed in any one of claims 5 or 6, wherein the air bag (52) comprises a side (521), an inner ring (522) and an outer ring (523), the side (521) being provided with a pair of members provided between the inner ring (522) and the outer ring (523), the outer ring (523) being made of a hard material, the side (521) and the inner ring (522) being made of a flexible material.
  8. 8. The nut tapping mechanism as claimed in claim 7, comprising a feeding assembly, wherein the feeding assembly comprises a linear motor (81) on a first base (3), an L-shaped baffle (82) is arranged at one telescopic end of the linear motor (81), a second bearing (83) is arranged at one telescopic end of the linear motor (81), a pushing plate (84) is arranged on the outer ring of the second bearing (83), the pushing plate (84) is made of magnetic materials and can absorb a workpiece (1), a circular tube (85) is arranged on the first base (3), a feeding groove (86) is arranged on the circular tube (85), the feeding groove (86) is communicated with the circular tube (85), and the workpiece (1) is positioned in the feeding groove (86).
  9. 9. The nut tapping mechanism as claimed in claim 8, wherein a first gear (91) is mounted on one end of the rotation shaft (9), a rotation motor (92) is mounted on the seat (31), and a second gear (93) engaged with the first gear (91) is mounted on the rotation end of the rotation motor (92).

Description

Nut tapping mechanism Technical Field The invention relates to the technical field of nut tapping, in particular to a nut tapping mechanism. Background The nut tapping is a common machining procedure, in the prior art, for example, the document with the application number of CN202511111104.4 is used for directly driving a screw tap to perform rotary tapping through a power motor, but the screw tap has the following defects that 1, due to the limitation of a connecting structure of the screw tap and the motor, after the screw tap is tapped, the screw tap needs to be actively reversely rotated to withdraw the nut, and then the nut is withdrawn, fed and tapped, the screw tap is reversely rotated, wherein the operation of withdrawing the nut consumes more time, the tapping procedure is not continuous enough and has lower efficiency, 2, the nut is fixed through a limiting groove, the shape of the limiting groove is fixed, and once the diameter or the appearance of the nut is changed, the nut cannot be effectively fixed, and the compatibility is poor. Disclosure of Invention In view of the above drawbacks, the present invention provides a nut tapping mechanism that solves the above problems. In order to achieve the above purpose, the present invention adopts the following technical scheme: The nut tapping mechanism comprises a workpiece, an L-shaped screw tap, a first base, a second base, a collecting box and a nut tapping mechanism body; 匚 grooves and cross bars for defining the horizontal position of the L-shaped tap, which can be rocked in the horizontal direction; The hollow pipe and the rotating shaft synchronously rotate, the workpiece moves from one end of the hollow pipe to the other end, and the workpiece is tapped in the hollow pipe; The clamping assembly comprises a connecting rod, a spherical roller and a power part, wherein the power part controls the connecting rod to swing in the radial direction of the hollow tube to fix workpieces with different diameters, and the spherical roller is arranged to facilitate the workpieces to move along the axis of the hollow tube. Further, a first hydraulic rod is arranged on the second base, a 匚 groove is arranged at the telescopic end of the first hydraulic rod, a cross rod is arranged at the lower end of the 匚 groove, and one end of the L-shaped screw tap downwards penetrates through the cross rod. Further, a seat table is arranged on the upper surface of the first base, a round hole is formed in the side wall of the seat table, a first bearing is arranged on the inner side of the round hole, a rotating shaft is arranged on the inner side of the first bearing, a first cylindrical cavity is formed in one end of the rotating shaft, a second cylindrical cavity is formed in the other end of the rotating shaft, the first cylindrical cavity is larger than the second cylindrical cavity in diameter, and a hollow pipe is fixedly connected with the second cylindrical cavity. Further, the side walls at two ends of the hollow tube are provided with a plurality of sector holes, the axially arranged sector holes are in a group, the connecting rod is hinged in the sector holes, one end of the connecting rod is provided with a limiting plate, the limiting plate is positioned at the inner side of the hollow tube, the spherical roller is arranged on the limiting plate, the surface of the spherical roller is provided with a hard bulge, the rotation direction of the spherical roller is consistent with the moving direction of a workpiece, the power part is arranged at the other end of the connecting rod, the power part is arranged at the outer side of the hollow tube, and a torsion spring is arranged between the connecting rod and the sector holes. Further, the connecting rod is zigzag, and the power part comprises a balancing weight arranged at one end of the connecting rod. Further, the connecting rod is L-shaped, the power part comprises an air bag arranged on the inner side of the cylindrical cavity I, one end of the connecting rod is provided with a roller, and the roller props against the inner side of the air bag. Further, the airbag comprises a side wall, an inner ring and an outer ring, wherein the side wall is provided with a pair of inner rings and outer rings, the outer ring is made of hard materials, and the side wall and the inner ring are made of flexible materials. The feeding device comprises a feeding assembly, wherein the feeding assembly comprises a first linear motor on a base, an L-shaped baffle is arranged at the telescopic end of the first linear motor, a second bearing is arranged at the telescopic end of the first linear motor, a pushing plate is arranged on the outer ring of the bearing, the pushing plate is made of magnetic materials and can absorb a workpiece, a circular tube is arranged on the first base, a feeding groove is arranged on the circular tube and is communicated with the circular tube, and the workpiece is positioned in the feeding groove.