CN220761094U - High stability centering drill with replaceable drill point - Google Patents
High stability centering drill with replaceable drill point Download PDFInfo
- Publication number
- CN220761094U CN220761094U CN202322199644.5U CN202322199644U CN220761094U CN 220761094 U CN220761094 U CN 220761094U CN 202322199644 U CN202322199644 U CN 202322199644U CN 220761094 U CN220761094 U CN 220761094U
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- centering
- drill bit
- drill
- centering drill
- root
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- 238000007790 scraping Methods 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model relates to the technical field of replaceable drill tips, in particular to a high-stability centering drill with a replaceable drill tip, which comprises a cutter root and a cutter head root, wherein the outer wall of the rear end of the cutter root is provided with a clamping surface, the front end of the cutter head root is movably provided with a limiting block, and the limiting block is of a movable structure between the cutter head root and the cutter root; the front end of the limiting block is fixed with a scraping tooth, a chip groove is formed in the inner side of the scraping tooth, and a centering drill bit is arranged at the front end of the scraping tooth; the two sides of the centering drill bit are provided with screws, and the centering drill bit is mutually fixed with the scraping teeth through the screws. According to the utility model, the edge of the centering drill bit can be greatly prevented from tipping through the edge band arranged at the center of the inclined plane edge, the loss of the die in the using process is avoided, and the centering drill bit can be more effectively and tightly attached to the top end position of the scraping teeth through the arrangement of the curved plane edge.
Description
Technical Field
The utility model relates to the technical field of replaceable drill tips, in particular to a high-stability centering drill with a replaceable drill tip.
Background
The centering drill has the advantages that the die is firstly used for punching, the phenomenon that the common drill bit is broken when drilling is avoided, the centering drill with good rigidity is firstly used for drilling an initial hole with the depth of 1-2 times of the diameter before drilling, the accuracy of drilling by the common drill bit is guaranteed, chamfering is reserved for tapping, and tapping machining is facilitated.
Chinese utility model bulletin number: CN107717019a discloses a double-ended centering drill, which comprises a first end edge, a chip groove, a first side edge, a first cutter head, a stop block, a spring washer, a cutter handle, a fixed block, a second cutter head, a second side edge, a second chip groove, a second end edge and a containing groove. According to the double-end centering drill, the two ends of the cutter handle are connected with the first cutter head through threads, so that the centering drill is detachable, the cutter handle can be reused, and the waste of usable parts of the centering drill is reduced; the second tool bit is clamped in the accommodating groove, the second tool bit is in threaded connection with the accommodating groove, and the first tool bit and the second tool bit are the same in size, so that replacement among the tool bits is realized under the condition that new materials are not introduced, the service life of the centering drill is prolonged, the waste of materials is further reduced, and the manufacturing cost is greatly saved; meanwhile, the end blade is arranged into an arc-shaped structure, so that the resistance of the blade during drilling is effectively reduced, and the occurrence of breakage is reduced.
In summary, the following technical problems exist in the prior art: the common pilot drill is to change the tool bit, so that the disassembly and the replacement of the pilot drill are realized, the clamp is required to be loosened, the other end is required to be switched, then the clamp is required to be repositioned after clamping, particularly when high-precision parts are operated, and the clamp cannot be conveniently used by a user, so that the high-stability pilot drill with the replaceable drill point is provided.
Disclosure of Invention
The present utility model aims to provide a high stability pilot drill with a replaceable drill tip to solve the above mentioned problems of the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the high-stability centering drill with the replaceable drill point comprises a cutter root and a cutter head root, wherein a clamping surface is arranged on the outer wall of the rear end of the cutter root, a limiting block is movably installed at the front end of the cutter head root, and the limiting block is of a movable structure between the cutter head root and the cutter head root;
the front end of the limiting block is fixed with a scraping tooth, a chip groove is formed in the inner side of the scraping tooth, and a centering drill bit is arranged at the front end of the scraping tooth;
the two sides of the centering drill bit are provided with screws, and the centering drill bit is mutually fixed with the scraping teeth through the screws.
As a still further scheme of the utility model, a clamping structure is formed between the scraping teeth and the centering drill bit, and the scraping teeth are tightly attached to the centering drill bit.
As a still further proposal of the utility model, the two sides of the top of the centering drill bit are fixed with bevel blades which are symmetrical with respect to the center of the top of the centering drill bit and are provided with four bevel blades.
As a still further scheme of the utility model, the bottom end of the centering drill bit is provided with a concave groove, threads are arranged in the concave groove, the centering drill bit is fixedly connected with the concave groove, and the concave groove is in a concave structure.
As a still further proposal of the utility model, two sides of the centering drill bit are provided with curved edges, and the centering drill bit is fixedly connected with the curved edges.
As a still further proposal of the utility model, the center of the bevel blade is fixed with a cutting edge, and the cutting edge is symmetrical with respect to the center of the bevel blade and is provided with two cutting edges.
The above description shows that, by the above technical solution of the present application, the technical problem to be solved by the present application can be necessarily solved.
Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:
according to the utility model, the cutter root can be effectively limited and fixed on the clamp through the clamping surface, the limiting block can be effectively and quickly disassembled and assembled between the cutter root and the cutter root, the cutter root can be conveniently used by a user, the scraping teeth and the chip discharging grooves can discharge chips, the scraping teeth can well limit and fix the centering drill bit at the front end of the scraping teeth, the centering drill bit can well and effectively and stably work, and the inclined plane edge at the top end of the centering drill bit can effectively chamfer.
According to the screw, the concave groove is fixed on the top of the scraping teeth through the threads, the concave groove can be detached from the front of the centering drill bit, the edge breakage of the centering drill bit can be greatly avoided through the cutting edge arranged at the center of the inclined surface edge, the loss of the die in the using process is avoided, the dies can be chamfered more effectively at the two sides of the center of the centering drill bit through the inclined surface edge, and the centering drill bit can be fixed in the front end of the scraping teeth more effectively and stably through the threads through the concave structure of the concave groove.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the root and the head of the present utility model;
FIG. 3 is a schematic view of the root structure of the tool bit of the present utility model;
fig. 4 is a schematic view of the bit structure of the pilot drill of the present utility model.
In the figure: 1. clamping surfaces; 2. a cutter root; 3. a limiting block; 4. scraping teeth; 5. a chip removal groove; 6. a curved surface blade; 7. a margin; 8. a bevel edge; 9. centering drill bit; 10. a screw; 11. a cutter head root; 12. a thread; 13. a concave groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1, the present utility model provides a technical solution: the utility model provides a high stability centering bores with interchangeable drill point, including root 2 and tool bit root 11, the rear end outer wall of root 2 is provided with double-layered face 1, can effectually let root 2 spacing fix on anchor clamps through double-layered face 1, stopper 3 is installed to the front end of root 11, stopper 3 is movable structure through between root 11 and the root 2, stopper 3 can effective quick assembly disassembly through between root 11 and the root 2, can facilitate the use, the front end of stopper 3 is fixed with scrapes tooth 4, chip groove 5 has been seted up to the inboard of scraping tooth 4, scrape tooth 4 and chip groove 5 can discharge the piece, scrape the front end of tooth 4 and install centering bit 9, centering bit 9's both sides are provided with screw 10, scrape the front end that bit 9 can be fine with centering bit 9 spacing fix at scraping tooth 4, can let centering bit 9 effective stable work well, can let centering bit 9's top end's chamfer 8 effectively carry out the chamfer, scrape tooth 4 and fix through bit 10 each other with scraping bit 4.
Example two
The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:
as shown in fig. 1, fig. 2 and fig. 3, a clamping structure is formed between the scraping teeth 4 and the centering drill bit 9, the scraping teeth 4 are tightly attached to the centering drill bit 9, inclined plane blades 8 are arranged on two sides of the top of the centering drill bit 9, the centering drill bit 9 and the inclined plane blades 8 are fixedly connected, the centering drill bit 9 effectively and stably works, the inclined plane blades 8 at the top end of the centering drill bit 9 can be effectively chamfered, the inclined plane blades 8 are symmetrical with respect to the top center position of the centering drill bit 9, four inclined plane blades 8 are arranged, and the positions on two sides of the center of the centering drill bit 9 can be more effectively chamfered with respect to the die.
Example III
The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:
as shown in fig. 2, 3 and 4, as a preferred embodiment, further, on the basis of the above mode, curved surface edges 6 are arranged at two sides of the centering drill bit 9, the centering drill bit 9 is fixedly connected with the curved surface edges 6, the center position of the inclined surface edge 8 is provided with a cutting edge 7, the edge breakage of the centering drill bit 9 can be greatly avoided through the cutting edge 7 arranged at the center position of the inclined surface edge 8, the loss of the die during the use is avoided, the fixed connection is arranged between the inclined surface edge 8 and the cutting edge 7, the cutting edge 7 is in central symmetry position relative to the inclined surface edge 8, and be provided with two, the bottom of centering drill tool bit 9 is provided with concave groove 13, the inside of concave groove 13 is provided with screw thread 12, be fixed connection between centering drill tool bit 9 and the concave groove 13, the structure of concave groove 13 is concave structure, screw 10 passes through screw thread 12 with concave groove 13 fixed in the top of scraping tooth 4, also can let concave groove 13 dismantle from the place ahead of centering drill tool bit 9, through the concave structure of concave groove 13, can let screw 10 let centering drill tool bit 9 more effectively stable fix the inside at scraping tooth 4 front end through screw thread 12.
The utility model aims at the technical problems that: the common centering drill is characterized in that the tool bit is replaced, so that the disassembly and the replacement of the centering drill are realized, the clamp is required to be loosened in the replacement mode, the other end is switched, then the clamp is clamped, particularly in the operation of high-precision parts, and the clamp is required to be repositioned after the clamping, so that the centering drill cannot be used by a user conveniently; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:
working principle: firstly, the clamp surface 1 of the tool root 2 can effectively prevent the tool root 2 from sliding on a working punching clamp, the limiting block 3 and the tool bit root 11 can be effectively fixed at the front end of the tool root 2 through threads 12, secondly, scraping teeth 4 and chip grooves 5 can effectively discharge scraps discharged by turning, the cutting edge 7 and the inclined surface edge 8 at the top end of the centering drill bit 9 can well drill and chamfer a die in a positioning mode, and then the centering drill bit 9 can effectively fix the curved surface edge 6 and the concave groove 13 at the top of the scraping teeth 4 through screws 10 and threads 12, and the curved surface edge 6 can be tightly attached to the top of the scraping teeth 4.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The high-stability centering drill with the replaceable drill point is characterized by comprising a cutter root (2) and a cutter head root (11), wherein a clamping surface (1) is arranged on the outer wall of the rear end of the cutter root (2), a limiting block (3) is movably mounted at the front end of the cutter head root (11), and the limiting block (3) is of a movable structure between the cutter head root (11) and the cutter root (2);
the front end of the limiting block (3) is fixedly provided with a scraping tooth (4), a chip groove (5) is formed in the inner side of the scraping tooth (4), and a centering drill bit (9) is arranged at the front end of the scraping tooth (4);
two sides of the centering drill bit (9) are provided with screws (10), and the centering drill bit (9) and the scraping teeth (4) are mutually fixed through the screws (10).
2. A high stability pilot drill with replaceable drill tip according to claim 1, characterized in that: the scraping teeth (4) and the centering drill bit (9) form a clamping structure, and the scraping teeth (4) are tightly attached to the centering drill bit (9).
3. A high stability pilot drill with replaceable drill tip according to claim 2, characterized in that: the centering drill bit is characterized in that inclined plane blades (8) are fixed on two sides of the top of the centering drill bit (9), and the inclined plane blades (8) are symmetrical to the center of the top of the centering drill bit (9) and are provided with four.
4. A high stability pilot drill with replaceable drill tip according to claim 2, characterized in that: the bottom of centering drill tool bit (9) is provided with concave groove (13), the inside of concave groove (13) is provided with screw thread (12).
5. A high stability pilot drill with replaceable drill tip according to claim 2, characterized in that: curved surface edges (6) are arranged on two sides of the centering drill bit (9), and the centering drill bit (9) is fixedly connected with the curved surface edges (6).
6. A high stability pilot drill with replaceable drill tip according to claim 3, characterized in that: a cutting edge (7) is fixed at the center of the inclined plane blade (8), the cutting edges (7) are symmetrically positioned relative to the center of the bevel edge (8), and two cutting edges are arranged.
7. A high stability pilot drill with replaceable drill tip as defined in claim 4, wherein: the centering drill bit (9) is fixedly connected with the concave groove (13), and the concave groove (13) is in a concave structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199644.5U CN220761094U (en) | 2023-08-16 | 2023-08-16 | High stability centering drill with replaceable drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199644.5U CN220761094U (en) | 2023-08-16 | 2023-08-16 | High stability centering drill with replaceable drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220761094U true CN220761094U (en) | 2024-04-12 |
Family
ID=90614200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322199644.5U Active CN220761094U (en) | 2023-08-16 | 2023-08-16 | High stability centering drill with replaceable drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220761094U (en) |
-
2023
- 2023-08-16 CN CN202322199644.5U patent/CN220761094U/en active Active
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