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CN-224209228-U - Combined thread milling cutter

CN224209228UCN 224209228 UCN224209228 UCN 224209228UCN-224209228-U

Abstract

The utility model belongs to the technical field of machining cutters, and particularly relates to a combined thread milling cutter, which aims at the problems that an existing device is of an integral structure, and when a cutting edge of the milling cutter is worn or damaged in the use process, the whole milling cutter needs to be replaced, so that great waste is caused and the machining cost is increased; the utility model has the advantages that the cutting blade can be independently replaced as an easily worn part, when the cutting blade is worn or damaged, the whole milling cutter is not required to be replaced, and in the installation process, the consistency of each installation position of the cutting blade is ensured by matching the L-shaped clamping rod on the limiting sleeve with the limiting clamping groove of the cutting blade and accurately positioning the positioning screw and the positioning hole, so that the precision of the machined threads is ensured, and the product quality is improved.

Inventors

  • CHAO JIANGUO
  • ZHAO WEI
  • WANG DAJUAN

Assignees

  • 常州市纳固精密工具有限公司

Dates

Publication Date
20260508
Application Date
20250507

Claims (6)

  1. 1. The combined thread milling cutter comprises a cutter handle (1), wherein one end of the cutter handle (1) is fixedly connected with a guide rod (2), and is characterized in that one end of the guide rod (2) is provided with a cutting knife (3); One end surface of the guide rod (2) far away from the knife handle (1) is provided with a cutting knife installation groove (5) matched with the cutting knife (3), and the cutting knife (3) is detachably installed on one end surface of the guide rod (2) far away from the knife handle (1) through the cutting knife installation groove (5).
  2. 2. The combined thread milling cutter according to claim 1, wherein a dovetail block (8) is fixedly arranged on the surface of the cutting blade (3), an adaptive dovetail groove (7) is correspondingly formed in the bottom of the cutting blade mounting groove (5), and the cutting blade (3) is mounted in the cutting blade mounting groove (5) in a matched manner with the dovetail groove (7) through the dovetail block (8).
  3. 3. The combined thread milling cutter according to claim 1, wherein a positioning screw (9) is inserted into the through hole at the center of the cutting blade (3), and one end of the positioning screw (9) penetrating through the cutting blade (3) is connected in a positioning hole (6) formed in the bottom surface of the cutting blade mounting groove (5) in a threaded manner.
  4. 4. The combined thread milling cutter according to claim 1, wherein a rotary sleeve clamping groove (11) is formed in one end of the guide rod (2), a limiting sleeve (10) is inserted into the rotary sleeve clamping groove (11), an L-shaped clamping rod (12) is integrally formed on the surface of the limiting sleeve (10), and a limiting clamping groove (4) matched with one end of the L-shaped clamping rod (12) is formed in the surface of the cutting knife (3).
  5. 5. The combined thread milling cutter as claimed in claim 4, wherein a limit sleeve limit screw (13) is inserted in the limit sleeve (10), and one end of the limit sleeve limit screw (13) penetrates through the limit sleeve (10) and is in threaded connection with the inside of one end of the guide rod (2).
  6. 6. The combined thread milling cutter according to claim 5, wherein a clamping ring (15) is integrally formed on the outer side of the limiting sleeve limiting screw (13), the limiting sleeve (10) is provided with a step clamping protrusion (14), and the clamping ring (15) is abutted against the surface of the step clamping protrusion (14).

Description

Combined thread milling cutter Technical Field The utility model relates to a thread milling cutter, in particular to a combined thread milling cutter, and belongs to the technical field of machining cutters. Background In machining, threading is a common and important process. The traditional thread processing mode mainly comprises tap tapping and thread milling, the tap tapping has various limitations when processing large-diameter threads, blind hole threads and difficult-to-process material threads, such as the problems of easy breakage, difficult chip removal and the like, and the thread milling has higher processing precision and efficiency relatively, and is more suitable for complex working conditions. In the prior art, as disclosed in the publication No. CN207479764U, a single-tooth thread milling cutter is adopted, the occupied processing space is small, multiple times of feeding is not needed in the use process, the manpower and material resources are saved, the working time cost is reduced, the thread processing efficiency is effectively improved, meanwhile, the thread cutting can be formed at one time, the processing flow is simplified, the processing efficiency and the processing performance are further improved, meanwhile, the surface finish of a processed workpiece is ensured, and the defects of the prior art are that the thread milling cutter is of an integral structure, and the whole milling cutter needs to be replaced when the cutting edge of the milling cutter is worn or damaged in the use process, so that the great waste is caused, and the processing cost is increased. Disclosure of utility model The utility model aims to solve the problems that the device is of an integral structure, and when the cutting edge of the milling cutter is worn or damaged in the use process, the whole milling cutter needs to be replaced, so that great waste is caused, and the processing cost is increased. The combined thread milling cutter comprises a cutter handle, wherein one end of the cutter handle is fixedly connected with a guide rod; One end of the guide rod is provided with a cutting blade, the surface of one end of the guide rod, which is far away from the knife handle, is provided with a cutting blade mounting groove which is matched with the cutting blade, and the cutting blade is detachably arranged on the surface of one end of the guide rod, which is far away from the knife handle, through the cutting blade mounting groove. As a still further scheme of the utility model, the surface of the cutting knife is fixedly provided with a dovetail block, the bottom of the cutting knife mounting groove is correspondingly provided with a dovetail groove which is matched with the cutting knife, and the cutting knife is arranged in the cutting knife mounting groove through the dovetail block and the dovetail groove. As a still further proposal of the utility model, a positioning screw is inserted into the through hole at the center of the cutting blade, and one end of the positioning screw penetrating through the cutting blade is connected with a positioning hole arranged on the bottom surface of the cutting blade mounting groove in a threaded manner. As a still further proposal of the utility model, one end of the guide rod is provided with a rotating sleeve clamping groove, a limiting sleeve is inserted into the rotating sleeve clamping groove, an L-shaped clamping rod is integrally formed on the surface of the limiting sleeve, and a limiting clamping groove matched with one end of the L-shaped clamping rod is arranged on the surface of the cutting knife. As a still further proposal of the utility model, a stop collar stop screw is inserted in the stop collar, one end of the stop collar stop screw penetrates through the stop collar and is in threaded connection with the inside of one end of the guide rod. As a still further scheme of the utility model, a clamping ring is integrally formed on the outer side of the limiting screw of the limiting sleeve, the limiting sleeve is provided with a step clamping protrusion, and the clamping ring is abutted against the surface of the step clamping protrusion. The beneficial effects of the utility model are as follows: According to the utility model, through the matched use of the structures such as the cutter handle, the limit clamping groove, the cutter mounting groove, the dovetail block, the positioning screw, the rotating sleeve clamping groove, the limit sleeve limiting screw, the ladder clamping protrusion, the clamping ring and the like, the cutter can be independently replaced as an easily worn part, when the cutter is worn or damaged, the whole milling cutter is not required to be replaced, and only the cutter is required to be replaced, so that the purchase cost of the cutter is greatly reduced, and the replaceable design enables the cutter handle, the guide rod and other parts to be reused, and the resource utilization rate is improved; the components are