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CN-121988776-A - Self-cleaning drill bit for turning machine tool

CN121988776ACN 121988776 ACN121988776 ACN 121988776ACN-121988776-A

Abstract

The invention discloses a self-cleaning drill bit for a turning machine tool, which relates to the technical field of drilling tools and comprises a workbench, a placing rack, a drill bit tool holder, a drill bit body, a blocking block, a collecting box and a sealing cover, wherein the placing rack is arranged on the workbench and used for clamping a workpiece, the drill bit tool holder is arranged on the workbench in a sliding mode, the drill bit body is movably clamped in the drill bit tool holder, the blocking block is sleeved on the drill bit body, the middle of the collecting box is in rotary connection with the bottom of the blocking block, and the sealing cover is in sliding insertion connection with the outer wall of the collecting box. The invention solves the problems that the band-shaped scraps are difficult to smoothly discharge from the chip groove and are easy to be pulled and wound by the rotating force when the drill bit rotates and cuts at high speed because of the toughness and the continuity. Along with the drilling advance, the more the wound scraps are accumulated, the more chip removal channels are blocked, the cutting resistance of the drill bit is increased, the drilling precision is reduced, the normal drilling is affected when the drilling is serious, the machining efficiency is reduced, and the drill bit or a workpiece is possibly damaged.

Inventors

  • ZHENG QINGHUAN

Assignees

  • 湖北远蓝机器有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (10)

  1. 1. The self-cleaning drill bit for the turning machine tool comprises a workbench (1), a placing frame (2) arranged on the workbench (1) and used for clamping a workpiece, a drill bit holder (3) arranged on the workbench (1) in a sliding manner, and a drill bit body (4) movably clamped in the drill bit holder (3), and is characterized in that the drill bit body (4) further comprises a blocking block (8) sleeved on the drill bit body (4); The middle part of the collecting box (5) is rotationally connected with the bottom of the plugging block (8); The sealing cover (7) is in sliding connection with the outer wall of the collecting box (5); A plugging cutting assembly arranged in the collecting box (5) for discharging the drilling banded waste and cutting and discharging the banded waste into the collecting box (5); the plugging driving assembly is fixedly connected to the bottom of the drill tool apron (3) and drives the plugging cutting assembly to open and close based on the descending of the drill tool apron (3); The plugging and cutting assembly comprises an embedded block (503) which is arranged at the center of the collecting box (5) and is communicated with the collecting box (5), fixing rods (11) which are symmetrically distributed at the top of the embedded block (503) at equal angles, a pressing plate (12) which is rotatably arranged between the two fixing rods (11) and a pull rod (14) which is jacked by the pressing plate (12), wherein the bottom of the pull rod (14) is arranged in the embedded block (503), and one end of the pull rod (14) which is positioned in the embedded block (503) is fixedly connected with a plugging plate (15); The plugging driving assembly comprises a fixing plate (6) fixedly connected to the bottom of the drill tool apron (3), and driving rods (9) distributed at equal angles are fixedly connected to the bottom of the fixing plate (6).
  2. 2. The self-cleaning drill bit for a turning machine tool according to claim 1, wherein the plugging and cutting assembly further comprises a sliding rod (1401) fixedly connected to the top of the pull rod (14), and a sliding groove (1201) for sliding the sliding rod (1401) and lifting the pull rod (14) is formed in the end portion of the pressing plate (12).
  3. 3. A self-cleaning drill bit for turning machine according to claim 1, wherein one side of the driving rod (9) is fixedly connected with lugs (10) which are distributed at equal angles, and the lugs (10) are used for pushing down to drive a pressing plate (12) to rotate and lift the pull rod (14).
  4. 4. A self-cleaning drill bit for a turning machine according to claim 1, wherein the joint of the inner insert (503) and the collecting box (5) is provided with discharge grooves (501) distributed at equal angles, and the pull rod (14) and the plugging plate (15) are both arranged in the discharge grooves (501).
  5. 5. A self-cleaning drill for turning machine according to claim 4, characterized in that the top of the insert (503) is provided with adaptation grooves (502) arranged at equal angular distribution, the adaptation grooves (502) being adapted to the driving rod (9).
  6. 6. The self-cleaning drill bit for a turning machine tool according to claim 1, wherein the middle part of the plugging block (8) is fixedly connected with symmetrical adaptive blocks (801), and the adaptive blocks (801) are matched with the thread grooves of the drill bit body (4).
  7. 7. The self-cleaning drill bit for the turning machine tool according to claim 1, wherein a rotating shaft lever is arranged at the joint of the pressing plate (12) and the fixed rod (11), and a torsion spring (13) is sleeved on the rotating shaft lever.
  8. 8. A self-cleaning drill bit for turning machine according to claim 1, characterized in that the end of the closure plate (15) is provided as an inclined cut surface which cuts the band-shaped shavings on the basis of the closure plate (15) being closed.
  9. 9. A self-cleaning drill bit for turning machine according to claim 1, characterized in that a number of balls are arranged in the connection of the block piece (8) and the insert piece (503).
  10. 10. A self-cleaning drill for turning machine according to claim 1, characterized in that the center of the insert (503) and the collection box (5) is provided with a through hole for the drill body (4) to pass through.

Description

Self-cleaning drill bit for turning machine tool Technical Field The invention relates to the technical field of drilling tools, in particular to a self-cleaning drill bit for a turning machine tool. Background A self-cleaning drill bit for a turning machine tool is a special drill bit which can automatically remove drill cuttings and reduce manual intervention in the turning process. According to the automatic chip removing device, through a specially designed chip removing channel, a reverse cleaning mechanism or an additional device, automatic cleaning of drilled chips is achieved after drilling, and the machining efficiency and the service life of a cutter are remarkably improved. The self-cleaning type drill bit disclosed by the publication No. CN120170131B and the application method thereof can realize the slow positive and negative rotation of the pagoda drill body by controlling the guiding of the conical spiral discharging groove and the conical spiral guiding groove to the first cleaning part, drive the first cleaning part to lift and drive the cleaning sleeve to clean dust and fragments in the conical spiral discharging groove, thereby improving the cleaning efficiency and the effect function of the pagoda drill body, but the existing drill bit has some cleaning defects. During the drilling of a workpiece by a turning machine, the junk slots (i.e., thread slots) of the drill bit inevitably become involved in the junk cuttings generated by the turning of the workpiece. These processing scraps are not in a single form but are mainly classified into a small-sized, granular or powdery scraps and a long-length, continuous strip-shaped scraps. The characteristics of the strip-shaped scraps are extremely easy to cause processing interference, and the scraps have certain toughness and continuity, so that the scraps are difficult to smoothly discharge from the chip grooves in the process of high-speed rotary cutting of the drill bit, and can be pulled and wound by the rotary force of the drill bit. Along with the promotion of drilling process, the banded sweeps of winding on the drill bit can be more the deposition more, and then blocks up chip removal passageway, obstructs the discharge of follow-up sweeps, still probably leads to the drill bit cutting resistance to increase simultaneously, drilling precision decline, can influence the normal clear of drilling action even when serious, reduces machining efficiency and probably causes the damage to drill bit or work piece. In order to solve the problems, innovative design is urgently needed on the basis of the self-cleaning drill bit originally used for the turning machine tool. Disclosure of Invention The technical scheme of the invention aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly aims to provide a self-cleaning drill bit for a turning machine tool, so as to solve the problem that the prior art proposes that band-shaped scraps are difficult to smoothly discharge from a scrap groove and are easy to drag and wind by rotating force due to toughness and continuity when the drill bit is used for high-speed rotary cutting. Along with the drilling advance, the more the wound scraps are accumulated, the more chip removal channels are blocked, the cutting resistance of the drill bit is increased, the drilling precision is reduced, the normal drilling is affected when the drilling is serious, the machining efficiency is reduced, and the drill bit or a workpiece is possibly damaged. The self-cleaning drill bit for the turning machine tool comprises a workbench, a placing rack, a drill bit tool holder and a drill bit body, wherein the placing rack is arranged on the workbench and used for clamping a workpiece, the drill bit tool holder is arranged on the workbench in a sliding mode, the drill bit body is movably clamped in the drill bit tool holder, and the drill bit body further comprises a plugging block sleeved on the drill bit body; the middle part of the collecting box is rotationally connected with the bottom of the plugging block; The sealing cover is in sliding connection with the outer wall of the collecting box; A plugging cutting assembly disposed within the collection box for discharging drilled strap cuttings and cutting the strap cuttings into the collection box; the plugging driving assembly is fixedly connected to the bottom of the drill bit holder and drives the plugging cutting assembly to open and close based on the descending of the drill bit holder; The plugging and cutting assembly comprises an embedded block arranged at the center of the collecting box and communicated with the collecting box, fixing rods symmetrically distributed at the top of the embedded block at equal angles, a pressing plate rotatably arranged between the two fixing rods and a pull rod jacked by the pressing plate, wherein the bottom of the pull rod is arrang