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CN-224209159-U - Inner cooling flat bottom drill for deep hole machining

CN224209159UCN 224209159 UCN224209159 UCN 224209159UCN-224209159-U

Abstract

The utility model belongs to the technical field of flat bottom drills, in particular to an inner cooling flat bottom drill for deep hole machining, aiming at the problem that existing scraps enter holes, the inner cooling flat bottom drill comprises a drill rod, a drill bit is fixedly arranged at the bottom end of the drill rod, a cleaning mechanism is arranged outside the drill rod, the cleaning mechanism comprises a sliding groove which is arranged on the outer wall of the drill rod, a connecting ring is tightly pressed at the adjusting position of the sliding groove sliding block through a sleeving ring, the cleaning mechanism is quickly disassembled and assembled under the limit of the sliding groove sliding block, a penetrating plate which is in sliding connection with a fixing shell is used for enabling a first brush at the bottom end of the abutting plate to abut against a workpiece, the workpiece can be rotated according to the rotation of the drill bit, scraps discharged through a chip removing groove are pushed, the scraps are thrown outwards through centrifugal movement, the phenomenon that the accumulated scraps enter the holes after the drill bit is pulled out is avoided, the workpiece is influenced, meanwhile, a limiting plate and a rubber pad are matched for forming piston movement, and the stability of the displacement of the penetrating plate is improved.

Inventors

  • WANG CHUN
  • NIE MINGJIE

Assignees

  • 江苏肯度精密工具有限公司

Dates

Publication Date
20260508
Application Date
20250427

Claims (7)

  1. 1. An inner cold flat bottom drill for deep hole machining comprises a drill rod (1) and is characterized in that a drill bit (2) is fixedly arranged at the bottom end of the drill rod (1), and a cleaning mechanism (3) is arranged outside the drill rod (1); The cleaning mechanism (3) comprises a chute (301), the chute (301) is formed in the outer wall of the drill rod (1), one side of the chute (301) of the outer wall of the drill rod (1) is connected with a connecting ring (302) in a sliding mode, a sleeve ring (304) is arranged above the connecting ring (302) of the outer wall of the drill rod (1) in a sliding mode, a sliding block (303) is fixedly arranged on one side, facing the chute (301), of the connecting ring (302), a fixing shell (305) is fixedly arranged at the bottom end of the connecting ring (302), and a penetrating plate (306) penetrates out of the fixing shell (305).
  2. 2. The inner cold flat bottom drill for deep hole machining is characterized in that an abutting plate (307) is fixedly arranged at the bottom end of the penetrating plate (306), a roller (308) is rotatably connected to one side below the abutting plate (307), and a first hairbrush (309) is embedded into the other side below the abutting plate (307).
  3. 3. The inner cold flat bottom drill for deep hole machining according to claim 1, wherein the sleeve ring (304) is in threaded connection with the drill rod (1), and the sleeve ring (304) is tightly attached to the connecting ring (302).
  4. 4. The inner cold flat bottom drill for deep hole machining is characterized in that one end, penetrating into the fixed shell (305), of the penetrating plate (306) is fixedly provided with a limiting plate (4), the top end of the limiting plate (4) is embedded with a rubber pad (5), and the outer wall of the fixed shell (305) is provided with a pressure relief hole (6).
  5. 5. The inner cold flat bottom drill for deep hole machining according to claim 1, wherein the inner wall of the penetrating plate (306) is embedded with a sleeve (7), and a scraping mechanism (8) is arranged inside the sleeve (7).
  6. 6. The inner cold flat bottom drill for deep hole machining according to claim 5, wherein the scraping mechanism (8) comprises a spring (801), the spring (801) is embedded in the sleeve (7), and a penetrating rod (802) penetrates out of the sleeve (7).
  7. 7. The inner cold flat bottom drill for deep hole machining according to claim 6, wherein a pressing plate (803) is fixedly arranged at one end of the penetrating rod (802) penetrating out of the sleeve (7), and a second hairbrush (804) is embedded in the outer wall of the pressing plate (803) facing the drill bit (2).

Description

Inner cooling flat bottom drill for deep hole machining Technical Field The utility model relates to an inner cooling flat bottom drill, in particular to an inner cooling flat bottom drill for deep hole machining, and belongs to the technical field of flat bottom drills. Background A flat bottom drill is a tool for drilling holes, the cutting edge of which has a flat bottom shape, unlike the sharp cutting edge of a conventional drill, which can form a flat bottom hole when drilling holes. The cutting edge is sharp and wear-resisting, can effectively cut various materials, and in the drilling process, the flat bottom drill bit makes the cutting edge contact with workpiece materials through rotation and application of axial pressure, and the workpiece materials are gradually cut off by utilizing the sharpness and hardness of the cutting edge to form the required flat bottom hole. In prior art, as the interior cold flat bottom of carbide that publication number CN215392673U disclosed, this flat bottom is bored rationally in design, flat bottom is bored wholly and is adopted the carbide material to make and constitute cylindric structure, and flat bottom is bored the top and is set up to the horizontal plane structure, guarantee flat bottom and bore whole hardness, reduce the damage rate, be the indent on flat bottom and be provided with on the lateral wall of flat bottom and move away the bits groove, move away the bits groove and be provided with four and wholly constitute heliciform structure altogether, move away the sweeps that produce when milling through moving away the bits groove, prevent that the sweeps from piling up, move away the inside of bits groove and be provided with the coolant orifice, the coolant orifice is 1 mm's micropore, and densely arranged sets up in moving away the bits groove, and the coolant orifice link up with the water injection chamber, spray coolant through the coolant orifice, and drive coolant and flow in flat bottom boring inside, and then realize the internal cooling to flat bottom. However, in the prior art, it was found that an inner cold flat drill of the above design has the problem that the prior art can achieve the effect of rapid chip removal through the cooperation of components such as chip removing grooves, but in the specific use process, the chips are accumulated near holes after being discharged, and the accumulated chips can fall into the holes when the flat drill is pulled out, so that the use of the whole workpiece or equipment can be influenced, and in view of the above, the inner cold flat drill for deep hole machining is provided to overcome the defects. Disclosure of utility model The utility model provides an inner cooling flat bottom drill for deep hole processing, which aims to solve the technical problems that the chips are accumulated near a hole after being discharged, and the accumulated chips possibly fall into the hole when the flat bottom drill is pulled out, and the use of the whole workpiece or equipment is possibly affected. The utility model realizes the aim through the following technical scheme that the inner cooling flat bottom drill for deep hole processing comprises a drill rod, wherein the bottom end of the drill rod is fixedly provided with a drill bit, and the outside of the drill rod is provided with a cleaning mechanism; The cleaning mechanism comprises a chute, the outer wall at the drilling rod is seted up to the chute, one side sliding connection of drilling rod outer wall chute has the go-between, the top sliding connection of drilling rod outer wall go-between has the cover to establish the ring, and connects the anchor ring to one side fixed mounting of chute has the slider, the bottom fixed mounting of go-between has the fixed shell, and the inside of fixed shell wears out to have and wears out the board. As a still further scheme of the utility model, the bottom end of the penetrating plate is fixedly provided with a collision plate, one side below the collision plate is rotationally connected with a roller, and the other side below the collision plate is embedded with a first hairbrush. As a still further proposal of the utility model, the sleeve ring is in threaded connection with the drill rod, and the sleeve ring is tightly attached to the connecting ring. As a still further scheme of the utility model, a limiting plate is fixedly arranged at one end of the penetrating plate penetrating into the fixed shell, a rubber pad is embedded at the top end of the limiting plate, and a pressure relief hole is formed in the outer wall of the fixed shell. As a still further proposal of the utility model, the inner wall of the penetrating plate is embedded with a sleeve, and a scraping mechanism is arranged in the sleeve. As a still further aspect of the present utility model, the scraping mechanism includes a spring fitted inside the sleeve with a penetrating rod penetrating the inside of the sleeve. As a still further proposal o