CN-115740994-B - Ratchet ring machining device and machining method

CN115740994BCN 115740994 BCN115740994 BCN 115740994BCN-115740994-B

Abstract

The invention relates to the field of ratchet ring machining, in particular to a ratchet ring machining device and a machining method. The ratchet wheel ring machining device comprises a horizontally arranged mounting platform, a movable seat and a clamping seat are oppositely arranged at one end face of the mounting platform, the movable seat is movably connected to the mounting platform, a rotating assembly and a machining assembly are respectively arranged at the outer walls of the clamping seat and the movable seat, the rotating assembly and the machining assembly are oppositely arranged and are at corresponding heights, the rotating assembly can rotate relative to the clamping seat, an assembling part for assembling a blank is arranged at one end of the rotating assembly, which is far away from the clamping seat, and the machining assembly comprises a cutter assembly and a forging assembly which are arranged at intervals. The invention uses the forging processing method to open a groove at the outer wall of the blank, the processed groove body has small end chamfer and is not easy to slip, and the rough generated in the forging process can be removed by the rotary cutting of the cutter component, so that the ratchet wheel ring with better quality and higher torsion precision can be obtained.

Inventors

LU JIANYUN
YANG FEI

Assignees

浙江亿洋工具制造有限公司

Dates

Publication Date: 20260508
Application Date: 20221110

Claims (4)

1. The ratchet ring machining device is characterized by comprising a horizontally arranged mounting platform (110), wherein a movable seat (130) and a clamping seat (120) are oppositely arranged at one side end surface of the mounting platform (110), the movable seat (130) is movably connected to the mounting platform (110), the movable seat (130) can move along the length and width directions of the mounting platform (110), a rotating assembly and a machining assembly are respectively arranged at the outer walls of the clamping seat (120) and the movable seat (130), and the rotating assembly and the machining assembly are oppositely arranged and are positioned at corresponding heights; The rotary component can rotate relative to the clamping seat (120), and one end of the rotary component, which is far away from the clamping seat (120), is provided with an assembling part for assembling the blank (160), the processing component comprises a cutter component (170) and a forging component which are arranged at intervals, the cutter component (170) is used for processing the blank (160) by matching with the forging component, one side of the forging component, which is close to the rotary component, is provided with a forging inner hole, the forging inner hole is matched with the blank (160) in size, and a forging piece for slotting at the outer wall of the blank (160) is formed at the inner wall of the forging inner hole; The cutter assembly (170) comprises a first cutter (171), a second cutter (172) and a third cutter (173), wherein the first cutter (171) is used for carrying out rotary cutting processing on the outer wall of the blank (160) to form a smooth surface, the second cutter (172) is used for carrying out rotary cutting processing on the two axial ends of the blank (160) to form chamfers, and the third cutter (173) is used for carrying out rotary cutting processing on the rough formed by the blank (160) after being forged by the forging assembly; the rotary cutting parts of the first cutter (171) and the third cutter (173) are positioned on the same plane with the symmetrical surface of the blank (160) in the height direction, the edges of the rotary cutting parts are right angles, the rotary cutting parts of the second cutter (172) are positioned on the same plane with the symmetrical surface of the blank (160) in the height direction, and triangular notches are formed at the edges of the rotary cutting parts; the forging assembly comprises a mounting seat (180) and a forging sleeve (190) rotatably connected to the mounting seat (180), and the forging inner hole is coaxially arranged on one side of the forging sleeve (190) close to the blank (160).
2. The ratchet ring machining apparatus according to claim 1, wherein the rotating assembly includes a driving motor (140) and a rotating shaft (150), an output end of the driving motor (140) is connected to the rotating shaft (150), and the fitting portion is a fitting groove provided at a side of the rotating shaft (150) away from the driving motor (140) and coaxial with the rotating shaft (150).
3. A ratchet ring machining method, realized by the ratchet ring machining device according to claim 1 or 2, characterized in that it comprises the steps of: Step S1, assembling a blank (160) at an assembling groove of a rotating shaft (150); S2, starting a driving motor (140) to drive a blank (160) to rotate through a rotating shaft (150), adjusting the position of a moving seat (130) to enable the rotary cutting part of a first cutter (171) and the blank (160) to keep corresponding positions in the width direction of a mounting platform (110), and controlling the moving seat (130) to drive the first cutter (171) to move towards the blank (160) along the length direction of the mounting platform (110) after adjusting the positions, wherein the first cutter (171) carries out rotary cutting on the outer wall of the blank (160) to form a smooth surface; S3, keeping the blank (160) to rotate, and grooving the outer wall of the blank (160) through the forging assembly; S4, keeping the blank (160) to rotate, adjusting the position of the movable seat (130) to enable the third cutter (173) and the blank (160) to keep corresponding positions in the width direction, and controlling the movable seat (130) to drive the third cutter (173) to move along the length direction of the mounting platform (110) so as to cut off the rough formed in the forging process of the blank (160) in a rotary cutting mode; S5, keeping the blank (160) to rotate, adjusting the position of the movable seat (130) to enable the second cutter (172) and the blank (160) to keep corresponding positions in the width direction, and controlling the movable seat (130) to drive the second cutter (172) to move along the length direction of the mounting platform (110) to conduct rotary cutting on two axial ends of the blank (160) so as to form a chamfer; and S6, removing the blank (160) from the rotary shaft (150) to finish ratchet ring processing.
4. A ratchet ring machining method according to claim 3, wherein step S3 comprises the steps of: step S31, maintaining the blank (160) to rotate, and simultaneously adjusting the position of the movable seat (130) to enable the forging sleeve (190) and the axis of the blank (160) to be in the same straight line; Step S32, after the position adjustment of the movable seat (130) is finished, controlling the movable seat (130) to drive the forging sleeve (190) to move towards the blank (160) along the length direction of the mounting platform (110) so that synchronous rotation is formed between the forging sleeve (190) and the blank (160); And S33, controlling the forging sleeve (190) to move along the length direction of the mounting platform (110), forging a forging piece at the inner wall of the inner hole to open a groove at the outer wall of the blank piece (160).

Description

Ratchet ring machining device and machining method Technical Field The invention relates to the field of ratchet ring machining, in particular to a ratchet ring machining device and a machining method. Background The ratchet wheel is a gear with a rigid tooth surface or friction surface on the outer edge or inner edge, and is an important component for forming the ratchet mechanism. Because ratchet mechanism such as ratchet ring etc. has spacing characteristics of one-way meshing, it is widely used in the spanner field. During the machining of the ratchet ring, it is necessary to open a slot in the outer wall of the ratchet ring. Most of existing ratchet ring processing devices adopt a rolling or extrusion method for grooving, on one hand, the grooving method is easy to lead to large chamfer angle at the tail end of a processed groove body and easy to slip, and on the other hand, the torsion precision of the ratchet ring processed by the method is difficult to reach higher use requirements. Disclosure of Invention The invention provides a ratchet ring processing device and a processing method, which can overcome the defects that in the prior art, the end chamfer angle of a groove body of the outer wall of a ratchet ring is large, and the torsion precision of the ratchet ring cannot meet higher use requirements. The ratchet ring machining device comprises a horizontally arranged mounting platform, wherein a movable seat and a clamping seat are oppositely arranged at one side end surface of the mounting platform, the movable seat is movably connected with the mounting platform and can move along the length and width directions of the mounting platform, a rotating assembly and a machining assembly are respectively arranged at the outer walls of the clamping seat and the movable seat, and the rotating assembly and the machining assembly are oppositely arranged and are positioned at corresponding heights; The rotary component can rotate relative to the clamping seat, an assembling part for assembling the blank is arranged at one end of the rotary component, which is far away from the clamping seat, the processing component comprises a cutter component and a forging component which are arranged at intervals, the cutter component is used for processing the blank in cooperation with the forging component, a forging inner hole is arranged at one side of the forging component, which is close to the rotary component, the forging inner hole is matched with the blank in size, and a forging piece for slotting at the outer wall of the blank is formed at the inner wall of the forging inner hole. Specifically, in the use process of the ratchet ring machining device, the machining assembly can be driven to move through the movable seat movably connected to the mounting platform, so that a machining worker can adjust the position of the machining assembly in real time to meet the machining requirements of different procedures. In addition, the rotary assembly can be used for positioning a blank to be processed and driving the blank to rotate so as to be matched with the cutter assembly for rotary cutting processing. Notably, compared with the prior art, the method has the advantages that the groove is formed in the outer wall of the blank by the forging processing method, the chamfer of the tail end of the processed groove is small and is not easy to slip, and the roughness generated in the forging process can be removed by rotary cutting through the cutter assembly, so that the ratchet wheel ring with better quality and higher torsion precision can be obtained. Preferably, the rotating assembly comprises a driving motor and a rotating shaft, wherein the output end of the driving motor is connected with the rotating shaft, and the assembling part is an assembling groove which is arranged on one side of the rotating shaft far away from the driving motor and is coaxial with the rotating shaft. The assembly groove and the driving motor can be preferably fixed and drive the blank to rotate so as to be matched with the cutter assembly to carry out rotary cutting processing. Preferably, the cutter assembly comprises a first cutter, a second cutter and a third cutter, wherein the first cutter is used for carrying out rotary cutting processing on the outer wall of the blank to form a smooth surface, the second cutter is used for carrying out rotary cutting processing on two ends of the axial direction of the blank to form a chamfer angle, and the third cutter is used for carrying out rotary cutting processing on rough formed after the blank is forged by the forging assembly. According to the invention, the first cutter, the second cutter and the third cutter which are arranged at the fixed position of the movable seat can be matched with the movable seat to perform automatic processing, so that the processing efficiency is improved. Preferably, the rotary cutting part of the first cutter and the third cutter are positioned on the sam