Three-edge drill bit for hard alloy inner-cooling oil hole machining
By incorporating a hose and fan system into the drill bit, the problem of difficult chip removal when drilling carbide holes with traditional three-flute drill bits has been solved, achieving efficient chip removal and extended drill bit life.
Patent Information
- Application Number
- CN202422363038.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When drilling with traditional three-flute drill bits, debris cannot be effectively removed from the hole, resulting in reduced drilling speed, increased drill wear, and shortened service life.
A flexible hose is installed inside a circular hole in the drill bit, and a metal sleeve and a fan are installed at the rear end of the drill bit. The fan blows out the cuttings by rotating, and the airflow is used to remove the cuttings, thereby enhancing the strength and service life of the drill bit.
It improves drilling efficiency, extends the life of the drill bit, and reduces drill bit wear.
Smart Images
Figure CN223557301U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to three blade drill bit field especially relates to a three blade drill bit for hard alloy internal cooling oil hole processing. BACKGROUND
[0002] Three blade drill bit is a kind of commonly used cutter, usually used for metal processing, woodworking and the drilling of other materials.The traditional three blade drill bit when punching hard alloy, the debris generated in hole cannot be discharged, and the debris gathered in hole can affect the speed of punching, also can increase the wear of drill bit, reduce the service life of drill bit. SUMMARY
[0003] The utility model provides a three blade drill bit for hard alloy internal cooling oil hole processing to solve the shortcomings of poor chip removal of three blade drill bit in the prior art.
[0004] In order to solve the problems existing in the prior art, the utility model adopts the following technical scheme:
[0005] A three blade drill bit for hard alloy internal cooling oil hole processing, including drill bit body, three circular holes are set up on the drill bit body, metal pipe is fixedly arranged in the three circular holes, soft tube is inserted in the three metal pipes, metal sleeve is arranged at the rear end of the drill bit body, two fixed columns are fixedly arranged in the metal sleeve, threaded rod is fixedly arranged at the one end of the two fixed columns, fan is sleeved on the threaded rod, gasket is sleeved on the threaded rod, nut is threadedly arranged on the threaded rod, a plurality of ventilation grooves are formed in the metal sleeve.
[0006] Preferably, the end of the soft tube is fixedly provided with a connecting frame, a first screw is inserted in the middle of the connecting frame, and the one end of the first screw is threadedly connected with the rear end of the drill bit body.
[0007] Preferably, two L-shaped installation grooves are formed in the edge of the rear end of the drill bit body, two clamping blocks are fixedly arranged on the edge of one side of the metal sleeve, and the one end of the clamping block is clamped in the installation groove.
[0008] Preferably, a limiting block is fixedly arranged on one side of the inner wall of the installation groove, a second screw is threadedly arranged in the installation groove, the one side of the second screw penetrates through the limiting block, and the other side of the second screw is attached to the end of the clamping block.
[0009] Preferably, the clamping block is L-shaped, and the end of the clamping block is provided with an inclined surface.
[0010] Preferably, the outer wall of the fan is attached to the inner wall of the metal sleeve, and the ventilation groove is located at the rear side of the fan.
[0011] Preferably, the metal tube length is the same as the length of the circular hole, and the circular hole end is located in front of the drill bit body.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] In the utility model, the circular hole is arranged on the drill bit, the hose is arranged in the circular hole, the metal sleeve is arranged at the rear end of the drill bit, the fan in the metal sleeve rotates, the air blows along the hose in the circular hole, and the drill bits in the hole are directly blown away, the drilling efficiency is improved, and the service life of the drill bit is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings described herein are used to provide further understanding of the utility model, constitute a part of the present application, the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.
[0015] Figure 1 It is the overall structure schematic diagram of the utility model;
[0016] Figure 2 It is the drill bit body cross section structure schematic diagram of the utility model;
[0017] Figure 3 It is the connecting frame and hose structure schematic diagram of the utility model;
[0018] Figure 4 It is the fan structure schematic diagram of the utility model;
[0019] Figure 5 It is the Figure 2 It is the enlarged structure schematic diagram of the utility model in A place.
[0020] The serial number in the drawing: 1, drill bit body;11, circular hole;12, hose;13, metal sleeve;14, fixed column;15, threaded rod;16, fan;17, nut;18, gasket;19, ventilation groove;191, metal pipe;2, connecting frame;21, first screw;3, mounting groove;31, clamping block;4, limiting block;41, second screw. DETAILED DESCRIPTION
[0021] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment.
[0022] Embodiment: the embodiment provides a three-blade drill bit for hard alloy internal cooling oil hole processing, and the three-blade drill bit comprises a drill bit body, a connecting frame, a first screw, a mounting groove, a clamping block, a limiting block, a second screw, a circular hole, a hose, a metal sleeve, a fixed column, a threaded rod, a fan, a nut, a gasket and a ventilation groove. Figures 1-5Specifically, it comprises a drill bit body 1, three circular holes 11 are formed in the drill bit body 1, three metal pipes 191 are fixedly arranged in the three circular holes 11, three hoses 12 are arranged in the three metal pipes 191, a metal sleeve 13 is arranged at the rear end of the drill bit body 1, two fixed columns 14 are fixedly arranged in the metal sleeve 13, threaded rods 15 are fixedly arranged at the one ends of the two fixed columns 14, a fan 16 is sleeved on the threaded rods 15, gaskets 18 are sleeved on the threaded rods 15, nuts 17 are threadedly arranged on the threaded rods 15, a plurality of ventilation grooves 19 are formed in the metal sleeve 13, the outer wall of the fan 16 is attached to the inner wall of the metal sleeve 13, the ventilation grooves 19 are located at the rear side of the fan 16, the length of the metal pipe 191 is the same as the length of the circular hole 11, and the end of the circular hole 11 is located at the front end of the drill bit body 1.
[0023] When the drill bit body 1 is used to punch the hard alloy, the generated debris in the hole is directly blown away by the air along the hose 12 in the circular hole 11 through the rotation of the fan 16, so that the punching efficiency is improved, the external air is sucked into the metal sleeve 13 through the ventilation grooves 19, so that the circulation is realized, the fan 16 is sleeved on the threaded rod 15, the rear side is attached to the end of the fixed column 14, the gasket 18 is sleeved on the threaded rod 15, and then the nut 17 is rotated on the threaded rod 15 to fix the position of the fan 16, the metal pipe 191 is arranged in the circular hole 11, the strength of the drill bit body 1 is increased, and the drill bit body 1 is prevented from being broken, and the hose 12 is arranged in the metal pipe 191, so that the hose 12 is convenient to take out and the hose 12 is prevented from being blocked by the debris.
[0024] In the specific implementation process, as shown in Figure 2 and Figure 3 , the end of the hose 12 is fixedly provided with a connecting frame 2, the first screw 21 is inserted in the middle of the connecting frame 2, and the one end of the first screw 21 is threadedly connected with the rear end of the drill bit body 1.
[0025] The first screw 21 is passed through the middle of the connecting frame 2, the end of the first screw 21 is connected with the threaded groove on the drill bit body 1, and the position of the hose 12 is fixed.
[0026] In the specific implementation process, as shown in Figure 2 and Figure 5 , two L-shaped installation grooves 3 are formed in the rear end edge of the drill bit body 1, two clamping blocks 31 are fixedly arranged on one side edge of the metal sleeve 13, one end of the clamping block 31 is clamped in the installation groove 3, a limiting block 4 is fixedly arranged on one side of the inner wall of the installation groove 3, a second screw 41 is threadedly arranged in the installation groove 3, one side of the second screw 41 passes through the limiting block 4, the other side of the second screw 41 is attached to the end of the clamping block 31, the clamping block 31 is L-shaped, and the end of the clamping block 31 is provided with an inclined surface.
[0027] When the metal sleeve 13 is connected with the drill bit body 1, the clamping block 31 on one side of the metal sleeve 13 is inserted into the installation groove 3, the end of the clamping block 31 is clamped at the corner position in the installation groove 3, the second screw 41 is rotationally connected in the installation groove 3, one side of the second screw 41 passes through the limiting block 4, and the end enters the inner wall bottom of the installation groove 3, so that the metal sleeve 13 is installed with the drill bit body 1.
[0028] Specifically, the working principle and operation method of the utility model are as follows:
[0029] The hose 12 is inserted into the circular hole 11, the position of the hose 12 is fixed through the first screw 21, the fan 16 is sleeved on the threaded rod 15, the rear side is attached to the end of the fixed column 14, the gasket 18 is sleeved on the threaded rod 15, the nut 17 is rotated on the threaded rod 15, the position of the fan 16 is fixed, the clamping block 31 on one side of the metal sleeve 13 is inserted into the installation groove 3, the end of the clamping block 31 is clamped at the corner position in the installation groove 3, the second screw 41 is rotationally connected in the installation groove 3, one side of the second screw 41 passes through the limiting block 4, and the end enters the inner wall bottom of the installation groove 3, so that the metal sleeve 13 is installed with the drill bit body 1;
[0030] When the drill bit body 1 punches the hard alloy, the debris generated in the hole is rotated through the fan 16, the air along the hose 12 in the circular hole 11 blows away the debris in the hole directly, and the punching efficiency is improved.
[0031] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A three-fluted drill for machining internal coolant holes in cemented carbide, comprising a drill body (1), characterised in that: Three circular holes (11) are formed in the drill bit body (1), and a metal pipe (191) is fixedly arranged in each of the three circular holes (11); a hose (12) is inserted into each of the three metal pipes (191); a metal sleeve (13) is arranged at the rear end of the drill bit body (1); two fixed columns (14) are fixedly arranged in the metal sleeve (13); a threaded rod (15) is fixedly arranged at one end of each of the two fixed columns (14); a fan (16) is sleeved on the threaded rod (15); a gasket (18) is sleeved on the threaded rod (15); a nut (17) is threadedly arranged on the threaded rod (15); and a plurality of ventilation grooves (19) are formed in the metal sleeve (13).
2. A three-land carbide internal cooling hole drill according to claim 1, characterized in that: The end of the hose (12) is fixedly provided with a connecting frame (2), and a first screw (21) is inserted into the middle of the connecting frame (2); one end of the first screw (21) is threadedly connected with the rear end of the drill bit body (1).
3. The three-land carbide internal cooling hole drill according to claim 1, characterized in that: Two L-shaped mounting grooves (3) are formed in the rear end edge of the drill bit body (1), and two clamping blocks (31) are fixedly arranged on the side edge of the metal sleeve (13); one end of the clamping block (31) is clamped in the mounting groove (3).
4. A three-land carbide internal cooling hole drill according to claim 3, characterized in that: A limiting block (4) is fixedly arranged on one side of the inner wall of the mounting groove (3); a second screw (41) is threadedly arranged in the mounting groove (3); one side of the second screw (41) penetrates through the limiting block (4); and the other side of the second screw (41) is attached to the end portion of the clamping block (31).
5. A three-land carbide internal cooling hole drill according to claim 3, characterized in that: The clamping block (31) is L-shaped, and the end portion of the clamping block (31) is provided with an inclined surface.
6. The three-land carbide internal cooling hole drill bit of claim 1, wherein: The outer wall of the fan (16) is attached to the inner wall of the metal sleeve (13), and the ventilation grooves (19) are located at the rear side of the fan (16).
7. The three-land carbide internal cooling hole drill bit of claim 1, wherein: The length of the metal pipe (191) is the same as the length of the circular hole (11), and the end portion of the circular hole (11) is located at the front end of the drill bit body (1).