CN-117300540-B - Quick processing method for metal thin-wall annular product

Abstract

The invention discloses a rapid processing method of a metal thin-wall annular product, which is used for machining a metal blank into an annular product, wherein a cutting-off knife and a rotatable supporting clamp are fixedly arranged on a lathe tool rest, the supporting clamp firmly clamps a machined semi-finished product, an X-axis moving mechanism is arranged between the cutting-off knife and the lathe tool rest, the X-axis moving mechanism moves the cutting-off knife to integrally cut the metal blank, so that a part of the metal blank leaning against a rotary workbench and the machined semi-finished product are completely separated, and the separated semi-finished product is firmly clamped by the supporting clamp. The supporting clamp can move along with the tool rest to position the machined semi-finished product, the supporting clamp can rotate together with the workpiece, and after the ring body is cut off, the rotary worktable and the supporting clamp can be automatically separated, so that the automatic processing level is improved, and the processing efficiency is improved.

Inventors

• DU YUSI
• ZHANG YONG
• HU BINGYI
• ZHOU JUNJIE
• TANG XIAOPING
• ZHANG ZHENWU
• LIU PING
• ZHANG HU

Assignees

• 温州市华海密封件有限公司

Dates

Publication Date

20260508

Application Date

20231010

Claims (4)

1. 1. A rapid processing method of a metal thin-wall annular product is used for machining a metal blank (1) into an annular product and is characterized by comprising the following processing steps, (A) Firstly, preparing an annular metal blank (1), and enabling the inner end surface of the metal blank (1) to lean against a rotary worktable (2) of a lathe and be fixed through an annular part quick-mounting clamp (3); (b) Machining the inner and outer circumferential surfaces and the outer end surface of the metal blank (1) by using a cutting tool (4) to form a semi-finished product (5); (c) A cutting knife (6) and a rotatable supporting clamp (7) are fixedly arranged on a lathe saddle, and the supporting clamp (7) firmly clamps the machined semi-finished product (5); (d) An X-axis moving mechanism (8) is arranged between a cutting knife (6) and a lathe saddle, the X-axis moving mechanism (8) moves the cutting knife (6) to integrally cut a metal blank (1), so that a part of the metal blank (1) leaning against a rotary workbench (2) is completely separated from a machined part of a semi-finished product (5), the separated semi-finished product (5) is continuously and firmly clamped by a supporting clamp (7), a workpiece is only clamped once in the whole machining process without being taken down halfway, the supporting clamp (7) comprises a supporting rod (15), a bearing (16) and a positioning supporting ring (17), the supporting rod (15) is connected with the lathe saddle, the bearing (16) is fixedly arranged on the supporting rod (15), the positioning supporting ring (17) is fixedly arranged on the bearing (16), a gear ring (23) is arranged on the positioning supporting ring (17), the gear ring (23) is meshed with a gear (24), the gear (24) is connected with a motor (25), the motor (25) is relatively fixed with the supporting rod (15), the motor (25) is used for driving the positioning supporting ring (17) to rotate, and the two separated parts are kept at the same rotation speed when the two parts are cut off, and the workpiece is subjected to semi-machining by abrasive paper (5) to rotary grinding; (e) The inner end face of the separated semi-finished product (5) is subjected to machining operation, a grinding disc (9) is arranged on a part of the metal blank (1) to rotationally grind and mold the semi-finished product (5), an annular positioning groove (20) is formed in the inner side of the grinding disc (9), the annular positioning groove (20) is matched with the outer end face of the part of the metal blank (1), a positioning shaft (21) is fixedly connected to the center of the grinding disc (9), the positioning shaft (21) is fixedly connected with a positioning hole (22) formed in the rotary workbench (2) or the ring-shaped part quick-mounting clamp (3), the part of the metal blank (1) rotates and then drives the grinding disc (9) to rotate, and grinding and polishing operations are realized when the inner end face of the separated semi-finished product (5) is abutted to the grinding disc (9); (f) And removing part of the metal blank (1) on the ring-shaped piece quick-mounting clamp (3), and removing the machined metal thin-wall ring-shaped product.
2. 2. The rapid processing method of metal thin-wall annular products according to claim 1, wherein in the step (a), the annular piece fast-assembling clamp (3) adopts a vacuum adsorption clamp or an expansion sleeve clamp.
3. 3. The method of rapid tooling of a thin metal wall annular article according to claim 1 wherein in step (b) the cutting tool (4) comprises an outer cylindrical tool and an inner bore tool fixedly connected together.
4. 4. The rapid processing method of the metal thin-wall annular product according to claim 1, wherein the positioning support ring (17) is provided with a groove for fixing a workpiece, an elastic gasket (35) is arranged in the groove, a clamping mechanism is arranged on the inner ring of the positioning support ring (17), the clamping mechanism comprises a rotating support (29) and a counterweight clamping jaw (30), the counterweight clamping jaw (30) is rotatably connected to the rotating support (29), a friction pressing wheel (31) is rotatably arranged on the counterweight clamping jaw (30), the upper end of the rotating support (29) is provided with an angle limiting block (32), and a compression spring (33) is fixedly connected between the inner side of the rotating support (29) and the counterweight clamping jaw (30).

Description

Quick processing method for metal thin-wall annular product Technical Field The invention relates to the technical field of metal ring gaskets, in particular to a rapid processing method of a metal thin-wall annular product. Background In the Chinese patent document with publication number CN108581394B, a one-step clamping and forming processing method of a metal thin-wall annular product is disclosed, firstly, the inner end face of a metal blank is abutted against a rotary worktable of a lathe and fixed, the inner circumferential face, the outer circumferential face and the outer end face of the metal blank are machined to form a semi-finished product, a fixture clamp is fixedly connected on the rotary worktable to firmly clamp the semi-finished product, the metal blank is integrally cut, the part blank abutted against the rotary worktable and the semi-finished product are completely separated and generate a gap, the separated semi-finished product is firmly clamped by the fixture clamp, then the inner end face of the semi-finished product is machined through the gap, and then the fixture clamp is removed, and the machined annular product is taken down. The method has reasonable operation steps, the workpiece is clamped once in the whole processing process, the workpiece is not required to be taken down halfway, the concentricity of the workpiece can be strictly ensured, the size of the processed annular product is precise, the qualification rate is greatly improved, the working time is reduced, and the cost is obviously reduced. The prior art has the defects of low automation degree, low processing efficiency and low processing efficiency because each ring body is required to be assembled and disassembled once. Disclosure of Invention The invention aims to solve the problems in the prior art, and provides a rapid processing method of a metal thin-wall annular product, which improves the old process, enables a rotary workbench and a tool clamp to be automatically separated, and improves the level of automatic processing. The invention solves the technical problems by adopting a technical proposal that the rapid processing method of the metal thin-wall annular product is used for machining a metal blank into the annular product and comprises the following processing steps, (A) Firstly, preparing an annular metal blank, leaning the inner end surface of the metal blank against a rotary worktable of a lathe and fixing the metal blank by an annular piece quick-mounting fixture, (B) Machining the inner and outer circumferential surfaces and the outer end surface of the metal blank by using a cutting tool to form a semi-finished product, (C) A cutting knife and a rotatable supporting clamp are fixedly arranged on a lathe saddle, the supporting clamp firmly clamps the machined semi-finished product, (D) An X-axis moving mechanism is arranged between the cutting knife and the lathe saddle, and moves the cutting knife to integrally cut the metal blank, so that a part of the metal blank leaning against the rotary worktable is completely separated from a machined semi-finished product, and the separated semi-finished product is stably clamped by the supporting clamp; (e) The inner end surface of the separated semi-finished product is machined, including but not limited to any one of three machining modes of machining and forming together when a cutting knife is used for separation, taking down the separated semi-finished product to a grinding machine for machining and forming or installing a grinding disc on a part of metal blank for rotary grinding and forming; (f) And removing part of the metal blank on the ring-shaped part quick-mounting clamp, and removing the machined metal thin-wall ring-shaped product. Further perfecting, in the step (a), the ring-shaped piece quick-assembling clamp adopts a vacuum adsorption clamp or an expansion sleeve clamp. Further preferably, in step (b), the cutting tool comprises an outer cylindrical cutter and an inner bore cutter fixedly connected together. Further more preferably, in the step (b), the supporting fixture comprises a supporting rod, a bearing and a positioning supporting ring, the supporting rod is connected with the lathe saddle, the bearing is fixedly arranged on the supporting rod, and the positioning supporting ring is fixedly arranged on the bearing. Further perfection, be equipped with the recess that is used for fixed work piece on the location support ring, be equipped with elastic pad in the recess, be equipped with clamping mechanism on the inner circle of location support ring, clamping mechanism is including rotating support and counter weight clamping jaw, rotate on the support and connect the counter weight clamping jaw, rotate the installation on the counter weight clamping jaw and be equipped with friction pinch roller, the upper end of rotating the support is equipped with the angle stopper, fixedly connected with compression spring between the inboard