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CN-224209164-U - Hard alloy drill bit with self-lubricating coating

CN224209164UCN 224209164 UCN224209164 UCN 224209164UCN-224209164-U

Abstract

The utility model belongs to the technical field of drill bits, and particularly relates to a hard alloy drill bit with a self-lubricating coating, aiming at the problem of waste in existing integral replacement, the utility model provides a scheme which comprises a drill rod, wherein the drill bit penetrates out of the bottom end of the drill rod, and a dismounting mechanism is arranged in the drill rod, the dismounting mechanism comprises a penetrating rod, the penetrating rod is fixedly provided with the top end of the drill bit, and the outer wall of the penetrating rod is fixedly provided with a limiting block.

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
20250414

Claims (7)

  1. 1. The hard alloy drill bit with the self-lubricating coating comprises a drill rod (1) and is characterized in that the drill bit (2) penetrates out of the bottom end of the drill rod (1), and a disassembly and assembly mechanism (3) is arranged in the drill rod (1); Disassembly and assembly mechanism (3) are including penetrating pole (301), penetrate the top of pole (301) fixed mounting has drill bit (2), and penetrate the outer wall fixed mounting of pole (301) and have stopper (302), draw-in groove (303) have been seted up to the position that stopper (302) were corresponded to drilling rod (1) outer wall, and drilling rod (1) inside position that corresponds to penetrate pole (301) has been seted up and has been run through groove (305), the outer wall below cover of drilling rod (1) is equipped with first screw thread lantern ring (304), locating hole (307) have been seted up to the inner wall that penetrates pole (301), the position fixed mounting that corresponds locating hole (307) in the inside top of run through groove (305 has locating piece (306).
  2. 2. The hard alloy drill bit with the self-lubricating coating according to claim 1, wherein the first threaded collar (304) is in threaded connection with the drill rod (1), and the drill rod (1) forms a sliding structure with the limiting block (302) through the clamping groove (303).
  3. 3. The hard alloy drill bit with the self-lubricating coating according to claim 1, wherein a second threaded collar (4) is sleeved above the outer wall of the drill rod (1), and a positioning mechanism (5) is arranged below the second threaded collar (4).
  4. 4. The hard alloy drill bit with the self-lubricating coating according to claim 3, wherein the positioning mechanism (5) comprises a lower pressing ring (501), the lower pressing ring (501) is sleeved below a second threaded collar (4) on the outer wall of the drill rod (1), and an abutting block (502) is fixedly arranged in the lower pressing ring (501).
  5. 5. The hard alloy drill bit with the self-lubricating coating according to claim 1, wherein a placement groove (503) is formed in the outer wall of the drill rod (1) at a position corresponding to the abutting block (502), and a rotating plate (504) is rotatably connected to the inside of the placement groove (503).
  6. 6. The hard alloy drill bit with the self-lubricating coating according to claim 5, wherein the supporting rods (505) penetrate through the inner wall of the rotating plate (504), and the supporting blocks (506) are fixedly arranged at the bottom end of the rotating plate (504).
  7. 7. The hard alloy drill bit with the self-lubricating coating according to claim 4, wherein a limiting mechanism (6) is arranged in the limiting block (302), the limiting mechanism (6) comprises a limiting hole (601), the limiting hole (601) is formed in the top end of the limiting block (302), a limiting rod (602) is fixedly arranged at the bottom end of the lower pressing ring (501), and a rubber sleeve (603) is sleeved outside the limiting rod (602).

Description

Hard alloy drill bit with self-lubricating coating Technical Field The utility model relates to a hard alloy drill bit, in particular to a hard alloy drill bit with a self-lubricating coating, and belongs to the technical field of drill bits. Background The hard alloy drill bit is made of hard alloy material, has high strength and rigidity, is more stable in the cutting process, is not easy to break, and is suitable for drilling processing with various high precision and high difficulty. In the prior art, as the micro-diameter coating drill disclosed by the publication No. CN222429362U, a spiral curved surface forming groove is formed in the surface of a drill needle, cutting edges are formed on two sides of the edge of the curved surface forming groove, and the surface of the drill needle is coated with a TAC coating. However, in the related art, a micro-diameter coated drill bit designed as described above is found to have the following problems that although the corresponding coating is arranged on the outer wall of the drill bit in order to increase the lubrication degree in the prior art, in a specific use process, the drill bit may be damaged during working, so that the drill bit cannot be used any more, the drill bit and the drill rod are integrated, and the whole replacement is wasteful. Disclosure of utility model The utility model provides a hard alloy drill bit with a self-lubricating coating, which aims to solve the technical problems that the coatings are possibly damaged during the working of the drill bit, so that the drill bit cannot be used continuously, the drill bit and a drill rod are integrated, and the whole replacement is wasted. The hard alloy drill bit with the self-lubricating coating comprises a drill rod, wherein the drill bit penetrates out of the bottom end of the drill rod, and a disassembly and assembly mechanism is arranged in the drill rod; The disassembly and assembly mechanism comprises a penetrating rod, the top of drill bit is fixedly installed on the penetrating rod, a limiting block is fixedly installed on the outer wall of the penetrating rod, a clamping groove is formed in the outer wall of the drill rod corresponding to the position of the limiting block, a penetrating groove is formed in the inner portion of the drill rod corresponding to the position of the penetrating rod, a first threaded lantern ring is sleeved below the outer wall of the drill rod, a positioning hole is formed in the inner wall of the penetrating rod, and a positioning block is fixedly installed at the position above the penetrating groove corresponding to the positioning hole. As still further scheme of the utility model, the first threaded collar is in threaded connection with the drill rod, and the drill rod forms a sliding structure with the limiting block through the clamping groove. As a still further scheme of the utility model, a second threaded collar is sleeved above the outer wall of the drill rod, and a positioning mechanism is arranged below the second threaded collar. As still further scheme of the utility model, the positioning mechanism comprises a lower pressing ring which is sleeved below the second threaded collar on the outer wall of the drill rod, and an abutting block is fixedly arranged in the lower pressing ring. As a still further scheme of the utility model, a positioning groove is formed in the outer wall of the drill rod at a position corresponding to the abutting block, and a rotating plate is rotatably connected in the positioning groove. As a still further proposal of the utility model, the inner wall of the rotating plate is penetrated with a supporting rod, and the bottom end of the rotating plate is fixedly provided with a supporting block. As a still further scheme of the utility model, a limiting mechanism is arranged in the limiting block, the limiting mechanism comprises a limiting hole, the limiting hole is formed in the top end of the limiting block, a limiting rod is fixedly arranged at the bottom end of the lower pressing ring, and a rubber sleeve is sleeved outside the limiting rod. The drill bit has the beneficial effects that after the top end of the drill bit penetrates the rod and is inserted into the drill rod, the positioning hole is sleeved outside the positioning block, meanwhile, the limiting block slides along the clamping groove, then the drill rod is sleeved with the first threaded lantern ring and is abutted under the limiting block, the drill bit can be quickly replaced after the drill bit is damaged or the coating is worn, the drill bit is prevented from being replaced together with the drill rod and is wasted, meanwhile, the limiting block is limited through the clamping groove, the positioning block limits the positioning hole, and the bearing strength of the whole torque of the drill bit can be improved; When the drill bit is installed, the second threaded lantern ring is screwed to tightly press the lower pressing ring on the limit