CN212551900U - Twist drill with detachable drill bit - Google Patents
Twist drill with detachable drill bit Download PDFInfo
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- CN212551900U CN212551900U CN202021271548.7U CN202021271548U CN212551900U CN 212551900 U CN212551900 U CN 212551900U CN 202021271548 U CN202021271548 U CN 202021271548U CN 212551900 U CN212551900 U CN 212551900U
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- drill
- drill bit
- mounting
- detachable
- twist
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Abstract
The application relates to a twist drill with a detachable drill bit, which comprises a drill handle, a guide rod, an installation seat and a drill bit, wherein one end of the guide rod is fixedly connected with the drill handle; the end part of the guide rod is provided with a first mounting hole for fixing the mounting seat; the top end of the mounting seat is provided with a fixing groove for mounting a drill bit, the bottom end of the mounting seat is provided with a first mounting rod, and the side surface of the mounting seat is circumferentially provided with two clamp grooves; the both sides symmetry of drill bit is equipped with the draw-in groove that is used for dismantling the drill bit. The application has the advantages of reducing the use cost of a user and reducing the waste of materials.
Description
Technical Field
The application relates to the field of twist drills, in particular to a twist drill with a detachable drill bit.
Background
Twist drills are currently known for cutting and drilling round holes in workpieces by rotation about a fixed axis, the flutes of which are helical. Twist drills are widely used in production and life.
A conventional twist drill is composed of a shank, a neck and a working portion, which is divided into a cutting portion and a guide portion. When the twist drill is used for drilling, the cutting part is easily abraded, and the worn cutting part needs to be polished by a grinding wheel and then used. And once the cutting part is damaged, the whole twist drill cannot be used, and different twist drills are required to be used when drilling is carried out on different materials, so that the use cost of a user is increased, and the material waste is also caused.
Disclosure of Invention
In order to reduce the use cost of users and reduce the waste of materials, the application provides a twist drill with a detachable drill bit.
The application provides a twist drill of detachable drill bit adopts following technical scheme:
a twist drill with a detachable drill bit comprises a drill handle, a guide rod, an installation seat and a drill bit, wherein one end of the guide rod is fixedly connected with the drill handle, the installation seat is detachably connected with the other end of the guide rod, and the drill bit is detachably connected with the installation seat;
the end part of the guide rod is provided with a first mounting hole for fixing the mounting seat;
the top end of the mounting seat is provided with a fixing groove for mounting a drill bit, the bottom end of the mounting seat is provided with a first mounting rod, and the side surface of the mounting seat is circumferentially provided with two clamp grooves;
the both sides symmetry of drill bit is equipped with the draw-in groove that is used for dismantling the drill bit.
Through adopting above-mentioned technical scheme, the drill bit is fixed on the mount pad, and the mount pad is fixed on the guide bar, when needs change the drill bit, can take off original drill bit, then change new drill bit can. The guide rod and the drill handle can be recycled, so that the waste of materials is reduced, and the use cost of a user is also reduced. When drilling on different materials, the drill bits with different hardness or materials can be fixed on the mounting seat for use.
Preferably, the drill handle is provided with a clamping block.
Through adopting above-mentioned technical scheme, the grip block can be used for anchor clamps centre gripping, avoids the drillstock to be damaged by anchor clamps for the operation of dismantling drill bit and mount pad is convenient and fast more.
Preferably, a plurality of clamping plates are arranged on the inner wall of the first mounting hole, and a plurality of fastening protrusions are arranged on the side surface of the first mounting rod at intervals;
the fastening protrusion abuts against the clamping plate.
Through adopting above-mentioned technical scheme, can have the clearance between two blocks of cardboard, and the fastening arch can block in the clearance, makes the installation of first installation pole more firm.
Preferably, the bottom of the first mounting hole is provided with a first magnetic plate, and the bottom end of the first mounting rod is provided with a second magnetic plate attracted with the first magnetic plate.
Through adopting above-mentioned technical scheme, first magnetic sheet and second magnetic sheet opposite poles attract, make the installation of first installation pole more stable.
Preferably, the mounting seat is provided with a second mounting hole for fixing the drill bit along the axis direction, and the drill bit is provided with a second mounting rod which is arranged in the second mounting hole in a penetrating manner and is detachably connected with the mounting seat.
Through adopting above-mentioned technical scheme, second installation pole can be dismantled with the mount pad and be connected, makes the drill bit can be stable fix on the mount pad.
Preferably, the second mounting rod is connected with the mounting seat in a threaded manner.
Through adopting above-mentioned technical scheme, threaded connection has self-locking function, makes the firm in connection and the dismantlement convenience of second installation pole and mount pad.
Preferably, a fastening groove is formed in the position, close to the bottom, of the side wall of the fixing groove, and a fastening strip matched with the fastening groove is arranged on the edge of the bottom end of the drill bit.
Through adopting above-mentioned technical scheme, the drill bit passes through the fastening strip chucking in the fastening groove for the drill bit is more firm with being connected of mount pad.
Preferably, the surface of the forceps groove is provided with a convex strip.
Through adopting above-mentioned technical scheme, the sand grip on the pincers groove surface can prevent to be difficult for skidding when unscrewing the mount pad with the instrument, and it is more convenient to dismantle.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the drill bit needs to be replaced, the original drill bit can be taken down and then replaced by a new drill bit. The guide rod and the drill handle can be recycled, so that the waste of materials is reduced, and the use cost of a user is also reduced. When drilling is carried out on different materials, drill bits with different hardness or materials can be fixed on the mounting seat for use;
2. the clamping block in this application can be used for anchor clamps centre gripping, avoids the drillstock to be damaged by anchor clamps for the operation of dismantling drill bit and mount pad is convenient and fast more.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is an exploded view of the drill bit and the mount in the axial direction in the embodiment of the present application.
Fig. 3 is a sectional view for showing the first mounting hole in the embodiment of the present application.
Description of reference numerals: 11. the drill comprises a drill handle, 12, a guide rod, 21, a mounting seat, 31, a drill bit, 121, a first mounting hole, 211, a fixing groove, 212, a first mounting rod, 213, a clamp groove, 311, a clamping groove, 111, a clamping block, 122, a clamping plate, 214, a fastening protrusion, 123, a first magnetic plate, 215, a second magnetic plate, 216, a second mounting hole, 312, a second mounting rod, 217, a fastening groove, 313, a fastening strip, 218 and a convex strip.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a twist drill with a detachable drill bit. Referring to fig. 1 and 2, it includes a drill shank 11, a guide rod 12, a mounting block 21 and a drill bit 31. Wherein the end of the guide bar 12 is provided with a first mounting hole 121. The top of mount pad 21 is equipped with the fixed slot 211 of installation drill bit, and its bottom has then set up first installation pole 212, and first installation pole 212 wears to establish and realizes dismantling of mount pad 21 and guide bar 12 in first mounting hole 121 and be connected, still is equipped with the fixed slot 211 that is used for fixed mounting seat 21 on the top of mount pad 21, and drill bit 31 is installed and is realized dismantling through fixed slot 211 and be connected with mount pad 21. In addition, two caliper grooves 213 are circumferentially provided on the side surface of the mounting seat 21.
When the drill 31 is damaged or the drill 31 made of a different material needs to be replaced, the drill 31 can be taken out of the fixing groove 211 and replaced. If the mounting seat 21 needs to be replaced, a wrench can be used to clamp the clamp groove 213 and unscrew the mounting seat 21.
The drill handle 11 and the guide rod 12 can be formed by machining a metal rod, two spiral guide grooves are formed in the guide rod 12 along the axial direction of the guide rod, and the drill handle 11 can be a cylinder and can be fixed by a clamping part of an electric drill or a bench drill. In addition, the drill shank 11 is further provided with a clamping block 111, the clamping block 111 can be a rectangular metal block and is integrally formed with the drill shank 11, and when the drill 31 or the mounting seat 21 is convenient to detach through the clamping block 111, an operator fixes the twist drill on the clamp, so that the clamp is prevented from damaging the surface of the drill shank.
Referring to fig. 3, a first mounting hole 121 is centrally formed in the end of the guide rod 12 along the axial direction, a plurality of clamping plates 122 are arranged on the side wall of the first mounting hole 121 at intervals, each clamping plate 122 may be an L-shaped plate, the clamping plates 122 and the first mounting hole 121 are integrally formed, one side surface of each clamping plate 122 is perpendicular to the inner wall of the first mounting hole 121, and a gap is formed between every two clamping plates 122 for mounting the first mounting rod 212. In addition, a first magnetic plate 123 is disposed at the bottom of the first mounting hole 121, and the first magnetic plate 123 is adhered to the bottom of the first mounting hole 121 and is used for attracting the first mounting rod 212 of the mounting base 21.
Referring to fig. 2, the mounting base 21 is formed by processing a metal cylinder, and two material guiding slots are formed on the side surface of the mounting base, and the material guiding slots on the guide rod 12 can be connected into one material guiding slot. In addition, the top end of the mounting seat 21 is provided with a fixing groove 211 for mounting the drill bit, the bottom of the side wall of the fixing groove 211 is further provided with a fastening groove 217, and the fastening groove 217 is of an arc structure and can enable the bottom of the drill bit 31 to be clamped in the fastening groove 217 through rotation.
The bottom end of the mounting base 21 is turned to form a first mounting rod 212, and the first mounting rod 212 can be inserted into the first mounting hole 121. The outer side surface of the first mounting rod 212 is further provided with a plurality of fastening protrusions 214, the fastening protrusions 214 are circumferentially arranged and can enter a gap between the two clamping plates 122 through rotation of the first mounting rod 212, and the fastening protrusions 214 are always abutted against the surfaces of the clamping plates 122 and are finally clamped by the clamping plates 122. In addition, a second magnetic plate 215 is further disposed at the bottom end of the first mounting rod 212, and the second magnetic plate 215 and the first mounting rod 212 may be connected by adhesion. The second magnetic plate 215 has a polarity different from that of the first magnetic plate 123, and generates an attractive force, so that the first mounting rod 212 is more firmly connected to the bottom surface of the first mounting hole 121.
In addition, a clamp groove 213 is provided on the outer side surface of the mounting base 21, and the clamp groove 213 is used for placing a clamping portion of a tool such as a wrench. A plurality of ribs 218 are further disposed on the surface of the clamp groove 213, and the ribs 218 may be welded to the surface of the clamp groove 213 by a metal strip to increase friction force and prevent an operator from sliding when the mounting base 21 is removed. In addition, a second mounting hole 216 is formed in the mounting seat 21, and one end of the second mounting hole 216 is communicated with the bottom surface of the fixing groove 211 for mounting the drill 31.
The drill 31 can be machined by a cylinder, a clamping groove 311 is formed in the side edge of the top of the drill, the clamping groove 311 is used for placing a triangular clamping plate, and the triangular clamping plate is inserted into the clamping groove 311 to unscrew the drill 31. The bottom end of the drill 31 is further provided with a second mounting rod 312, the second mounting rod 312 and the drill 31 are integrally formed, the second mounting rod 312 is vertically arranged on the bottom surface of the drill 31 in the middle, the second mounting rod 312 penetrates through the second mounting hole 216, and the second mounting rod is connected with the mounting base 21 in a threaded manner.
Furthermore, the bottom end edge of the drill 31 is provided with a fastening strip 313, the fastening strip 313 and the drill 31 are integrally formed, and the fastening strip 313 can be screwed into the fastening groove 217 by screwing the drill 31, so that the drill 31 is more firmly installed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a twist drill of detachable drill bit, includes drill shank (11) and one end and drill shank (11) fixed connection's guide bar (12), its characterized in that: the drilling machine also comprises an installation seat (21) detachably connected with the other end of the guide rod (12) and a drill bit (31) detachably connected with the installation seat (21);
a first mounting hole (121) for fixing the mounting seat (21) is formed in the end part of the guide rod (12);
the top end of the mounting seat (21) is provided with a fixing groove (211) for mounting a drill bit (31), the bottom end of the mounting seat (21) is provided with a first mounting rod (212), and the side surface of the mounting seat (21) is circumferentially provided with two clamp grooves (213);
clamping grooves (311) for disassembling the drill bit (31) are symmetrically arranged on two sides of the drill bit (31).
2. A twist drill with a detachable drill bit according to claim 1, wherein: and a clamping block (111) is arranged on the drill handle (11).
3. A twist drill with a detachable drill bit according to claim 1, wherein: a plurality of clamping plates (122) are arranged on the inner wall of the first mounting hole (121), and a plurality of fastening protrusions (214) are arranged on the side surface of the first mounting rod (212) at intervals;
the fastening projection (214) abuts against the catch plate (122).
4. A twist drill with a detachable drill head according to claim 1 or 3, wherein: the bottom of the first mounting hole (121) is provided with a first magnetic plate (123), and the bottom end of the first mounting rod (212) is provided with a second magnetic plate (215) attracted with the first magnetic plate (123).
5. A twist drill with a detachable drill bit according to claim 1, wherein: the mounting seat (21) is provided with a second mounting hole (216) used for fixing the drill bit (31) along the axis direction, and a second mounting rod (312) which is arranged in the second mounting hole (216) in a penetrating mode and is detachably connected with the mounting seat (21) is arranged on the drill bit (31).
6. A twist drill with a detachable drill bit according to claim 5, wherein: the second mounting rod (312) is connected with the mounting seat (21) in a threaded manner.
7. A twist drill with a detachable drill bit according to claim 1, wherein: the side wall of the fixing groove (211) is provided with a fastening groove (217) at a position close to the bottom, and the bottom end edge of the drill bit (31) is provided with a fastening strip (313) matched with the fastening groove (217).
8. A twist drill with a detachable drill bit according to claim 1, wherein: convex strips (218) are arranged on the surface of the clamp groove (213).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021271548.7U CN212551900U (en) | 2020-07-01 | 2020-07-01 | Twist drill with detachable drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021271548.7U CN212551900U (en) | 2020-07-01 | 2020-07-01 | Twist drill with detachable drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212551900U true CN212551900U (en) | 2021-02-19 |
Family
ID=74615588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021271548.7U Active CN212551900U (en) | 2020-07-01 | 2020-07-01 | Twist drill with detachable drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212551900U (en) |
-
2020
- 2020-07-01 CN CN202021271548.7U patent/CN212551900U/en active Active
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