CN224158263U - A tooling for clamping and positioning drill bits that assists in manual grinding and forming. - Google Patents
A tooling for clamping and positioning drill bits that assists in manual grinding and forming.Info
- Publication number
- CN224158263U CN224158263U CN202520918277.6U CN202520918277U CN224158263U CN 224158263 U CN224158263 U CN 224158263U CN 202520918277 U CN202520918277 U CN 202520918277U CN 224158263 U CN224158263 U CN 224158263U
- Authority
- CN
- China
- Prior art keywords
- angle
- hole
- rotatable shaft
- limiting block
- drill bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
本申请涉及成型钻头手工打磨技术领域，具体公开了一种辅助手工磨制成型钻头装夹定位工装，包括角架、限位块、可回旋轴和角度成型模具，角架上设有用于固定限位块的定位孔，限位块底部设有竖直向下的螺纹杆与定位孔配合，使用螺母与螺纹杆配合将限位块与角架固定，限位块上设有水平方向的安装孔，安装孔内同轴设有可回旋轴，可回旋轴可在安装孔内自由旋转，可回旋轴沿轴线设有可供角度成型模具穿过的通孔，通孔与角度成型模具同轴设置，可回旋轴侧壁设有沿径向的螺纹孔与通孔连通，螺纹孔内设有止动螺钉，角度成型模具头部为圆锥，圆锥角与钻头的顶角大小一致，可保证打磨钻头顶角的准确性和两侧主切削刃的对称度，结构简单可靠，加工成本低。
This application relates to the field of manual grinding technology for shaped drill bits, specifically disclosing an auxiliary tooling for clamping and positioning drill bits for manual grinding. The tooling includes an angle bracket, a limiting block, a rotatable shaft, and an angle forming mold. The angle bracket has a positioning hole for fixing the limiting block. The bottom of the limiting block has a vertically downward threaded rod that engages with the positioning hole. A nut is used to engage with the threaded rod to fix the limiting block to the angle bracket. The limiting block has a horizontal mounting hole. A rotatable shaft is coaxially mounted in the mounting hole, allowing it to rotate freely within the mounting hole. The rotatable shaft has a through hole along its axis through which the angle forming mold can pass. The through hole is coaxial with the angle forming mold. The side wall of the rotatable shaft has a radially threaded hole communicating with the through hole. A stop screw is installed in the threaded hole. The head of the angle forming mold is conical, with the cone angle matching the apex angle of the drill bit. This ensures the accuracy of grinding the drill bit's apex angle and the symmetry of the two main cutting edges. The structure is simple, reliable, and has low processing costs.
Description
Technical Field
The utility model relates to the technical field of manual grinding of formed drills, in particular to a clamping and positioning tool for an auxiliary manual grinding formed drill.
Background
The apex angle of the drill bit is the included angle between the cutting edge surface and the working surface, and is a key index for measuring the cutting capability and stability of the drill bit, when the drill bit is used, the main cutting edge of the head of the drill bit needs to be polished, the existing polishing mode of the drill bit is manual polishing on a grinder or polishing by using a drilling and grinding machine, most factories can use grinding machines with lower selling prices to polish the drill bit by adopting grinding machines with manual holding of the drill bit, when the manual drill bit is manually polished on the grinder to form a manual drill bit, the angle of the main cutting edge can only be measured by means of the experience control of staff and an angle ruler, the manual drill bit polishing has higher manual requirement, the apex angle of the drill bit cannot be accurately controlled, and the symmetry degree of the main cutting edge on two sides of the drill bit cannot be well ensured.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides an auxiliary manual grinding forming drill clamping and positioning tool, which solves the problem that the angle of a main cutting edge cannot be accurately controlled when the drill is manually ground.
The technical scheme includes that the fixture comprises an angle frame, a limiting block, a rotatable shaft and an angle forming die, wherein a positioning hole for fixing the limiting block is formed in the angle frame, a vertical downward threaded rod is arranged at the bottom of the limiting block and matched with the positioning hole, a nut is used for fixing the limiting block and the angle frame in a matched mode, a horizontal mounting hole is formed in the limiting block, the rotatable shaft is coaxially arranged in the mounting hole, the rotatable shaft is integrally cylindrical, a round table is arranged on the outer circumferential surface, the rotatable shaft can freely rotate in the mounting hole, a through hole for the angle forming die to pass through is formed in the rotatable shaft along an axis, the angle forming die is coaxially arranged with the through hole, a threaded hole along the radial direction is formed in the side wall of the rotatable shaft and communicated with the through hole, a stop screw is arranged in the threaded hole and used for limiting the drill bit, the angle forming die is integrally cylindrical, and the conical forming die head is conical, and the angle of the conical forming die is consistent with the vertex angle of the drill bit.
Furthermore, the angle forming die can be used for various angle specifications.
Further, waist-shaped holes for fixing the corner frames are formed in the corner frames, and bolts penetrate through the waist-shaped holes to fix the corner frames.
Further, the main body of the limiting block is of a cuboid structure, and the round table of the rotary shaft protrudes out of the side face of the limiting block.
Further, the nut is a locknut.
Further, the rotatable shaft is coaxially provided with a chuck.
Compared with the prior art, the auxiliary manual grinding forming drill clamping and positioning tool has the advantages that the angle of the limiting block is accurately adjusted by arranging the limiting block and the angle forming die, the angle of a grinding drill is further guaranteed, the rotatable shaft is used for assisting in manually grinding the drill, the accuracy of grinding the top angle of the drill and the symmetry degree of main cutting edges on two sides are guaranteed, the structure is simple and reliable, and the processing cost is low.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a schematic view of an angle forming mold of the present utility model;
FIG. 4 is a schematic view of the present utility model when adjusting the angle of the limiting block;
FIG. 5 is a schematic view of the present utility model when grinding a drill bit;
in the figure, the device comprises a 1-angle frame, a 2-limiting block, a 3-rotatable shaft, a 4-angle forming die, a 5-drill, a 6-nut, a 7-stop screw, an 8-grinding wheel, an 11-positioning hole, a 12-kidney-shaped hole, a 21-mounting hole, a 31-through hole and a 32-round platform.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment is shown in figures 1 to 5, the auxiliary manual grinding forming drill clamping and positioning tool comprises an angle frame 1, a limiting block 2, a rotatable shaft 3 and an angle forming die 4, wherein a positioning hole 11 for fixing the limiting block 2 is formed in the angle frame 1, a vertical downward threaded rod is arranged at the bottom of the limiting block 2 and matched with the positioning hole 11, a nut 6 is used for matching with the threaded rod to fix the limiting block 2 with the angle frame 1, a mounting hole 21 in the horizontal direction is formed in the limiting block 2, the rotatable shaft 3 is coaxially arranged in the mounting hole 21, the rotatable shaft 3 is integrally cylindrical, a round table 32 is arranged on the outer circumferential surface, the round table 32 can limit the axial movement stroke of the rotatable shaft 3 in the limiting block 2, the rotatable shaft 3 can be used for polishing the drill bit 5 by being held by a hand, the rotatable shaft 3 can freely rotate in the mounting hole 21, a through hole 31 allowing the angle forming die 4 to pass through along the axis, the side wall of the rotatable shaft 3 is coaxially provided with the through hole 31, a radial threaded hole is communicated with the through hole 31, a threaded hole 7 is formed in the threaded hole, the threaded hole 7 is used for preventing the rotatable shaft 3 from rotating in the axial direction of the rotatable shaft 3 from rotating in the limiting block 2, and the rotatable shaft 3 is correspondingly rotated to the rotatable shaft 3, and the rotatable shaft 3 can be rotated by a cylindrical die 4 when the rotatable shaft is in the same as the diameter, and the rotatable shaft is used for forming die 4, and the bit is not required to be in the full angle, and the rotary shaft is formed, and the rotary shaft 4 has a small angle and has a required angle, and the diameter corresponding to the diameter and can be formed.
The angle forming die 4 can be used for various angle specifications, as shown in fig. 3, the angle forming die 4 is different from the drill bit 5 in that the angle forming die 4 has no cutting edge, the angle forming die 4 can be provided with various angle specifications for standby, angles corresponding to the top angle of the common drill bit 5, including but not limited to 118 degrees, 120 degrees, 130 degrees, 140 degrees and the like, can be marked on the angle forming die 4 for quick taking during use, the angle frame 1 is provided with a kidney-shaped hole 12 for fixing the angle frame 1, a bolt is used for penetrating the kidney-shaped hole 12 to fix the angle frame 1, the angle frame 1 can be installed on a stand of a grinder or a workbench of the grinder, the kidney-shaped hole 12 can adjust the position of the angle frame 1 relative to the grinding wheel 8 in a certain range, the main body of the limiting block 2 is of a cuboid structure, the round table 32 of the rotatable shaft 3 protrudes out of the side surface of the limiting block 2, the nut 6 is a locking nut 6, and the locking nut 6 is prevented from loosening due to vibration.
The specific implementation process is as follows:
The angle frame 1 is fixed on a stand of a grinder or a workbench of an outer circle punching grinder by using bolts, the limiting block 2 and the rotatable shaft 3 are installed, the limiting block 2 is not fixed, an angle forming die 4 of a conical angle corresponding to a required vertex angle of a drill bit 5 to be ground is installed in the rotatable shaft 3, the angle of the limiting block 2 is adjusted, as shown in fig. 4, the head of the angle forming die 4 is flush with the surface of a grinding wheel 8 and is tightly attached to the surface of the grinding wheel, the tightly attached position is located at the position above the diameter of the horizontal plane of the grinding wheel 8, the lower position of the drill bit 5 is in contact with the grinding wheel 8 during grinding, the safety is high, a nut 6 at the bottom of the limiting block 2 is screwed at the moment to fix the limiting block 2, the angle forming die 4 is taken out, the drill bit 5 to be ground is installed in the rotatable shaft 3, a certain distance is reserved between a round table 32 on the rotatable shaft 3 and the limiting block 2, the reserved distance can be prevented from being excessively large in the direction of the grinding wheel 8 in the process, the main cutting edge of the drill bit 5 is enabled to be close to the surface of the grinding wheel 8, the stop screw 7 is screwed to fixedly limit the drill bit 5, the grinding wheel is enabled to rotate, the grinding wheel is enabled to be tightly, the tool is enabled to rotate, the tightly attached to the tightly rotate on the head of the grinding tool 3, the head is enabled to be in contact with the surface of the grinding tool 8, the grinding angle is enabled to be in the contact with the surface of the grinding tool 4, the angle is enabled to be in the angle is not to be in the symmetry with the angle of the grinding tool, and the surface is easy, and the angle can be manufactured, and the angle can be easily and the angle can be accurately and has the advantages can be manufactured, and can be easily and can be manufactured.
The second embodiment is different from the first embodiment in that a clamping head is arranged on the rotatable shaft 3, and the clamping head and the rotatable shaft 3 are coaxially arranged, so that the rapid clamping of the angle forming die 4 and the drill bit 5 can be realized, and the clamping of the drill bits 5 with different diameter specifications can be realized.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520918277.6U CN224158263U (en) | 2025-05-09 | 2025-05-09 | A tooling for clamping and positioning drill bits that assists in manual grinding and forming. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520918277.6U CN224158263U (en) | 2025-05-09 | 2025-05-09 | A tooling for clamping and positioning drill bits that assists in manual grinding and forming. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224158263U true CN224158263U (en) | 2026-04-24 |
Family
ID=99508818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520918277.6U Active CN224158263U (en) | 2025-05-09 | 2025-05-09 | A tooling for clamping and positioning drill bits that assists in manual grinding and forming. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224158263U (en) |
-
2025
- 2025-05-09 CN CN202520918277.6U patent/CN224158263U/en active Active
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