CN112935944B - Drill bit sharpening mechanism - Google Patents
Drill bit sharpening mechanism Download PDFInfo
- Publication number
- CN112935944B CN112935944B CN202110273692.7A CN202110273692A CN112935944B CN 112935944 B CN112935944 B CN 112935944B CN 202110273692 A CN202110273692 A CN 202110273692A CN 112935944 B CN112935944 B CN 112935944B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- rotary table
- turntable
- adjusting groove
- sliding seat
- 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.)
- Active
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 10
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
本发明涉及机械加工技术领域的一种钻头刃磨机构，包括支架，支架连接导轨，导轨上设置滑座，滑座设有配合中心孔，滑座上设置转盘，转盘上设有V形槽，转盘下设有圆柱中心凸台，转盘与滑座可沿配合中心孔的轴线转动，滑座右端设置转盘锁定螺钉；支架设有横向调整槽和竖向调整槽，横向调整槽设有固定螺钉，连接固定座与支架；竖向调整槽设有弹簧、滚动轴承，连接螺杆穿过弹簧、滚动轴承，与导轨的左端连接；连接螺杆、滚动轴承、导轨、滑座和转盘等组件，可作垂直移动，也可沿滚动轴承轴线转动，角度调整槽设有角度限位销杆；本发明通过调节转盘和角度限位销杆，精准修磨钻头顶角和主后角，确保修磨后钻头两边主切削刃对称，提高刃磨的效率和质量。
The present invention relates to a drill bit sharpening mechanism in the field of mechanical processing technology, comprising a bracket, the bracket is connected to a guide rail, a slide seat is arranged on the guide rail, the slide seat is provided with a matching center hole, a turntable is arranged on the slide seat, a V-shaped groove is arranged on the turntable, a cylindrical center boss is arranged under the turntable, the turntable and the slide seat can rotate along the axis of the matching center hole, and a turntable locking screw is arranged at the right end of the slide seat; the bracket is provided with a horizontal adjustment groove and a vertical adjustment groove, the horizontal adjustment groove is provided with a fixing screw, and the fixing seat and the bracket are connected; the vertical adjustment groove is provided with a spring and a rolling bearing, and a connecting screw passes through the spring and the rolling bearing and is connected to the left end of the guide rail; the connecting screw, the rolling bearing, the guide rail, the slide seat and the turntable and other components can be moved vertically and can also be rotated along the axis of the rolling bearing, and the angle adjustment groove is provided with an angle limit pin rod; the present invention can accurately grind the top angle and the main back angle of the drill bit by adjusting the turntable and the angle limit pin rod, ensure the symmetry of the main cutting edges on both sides of the drill bit after grinding, and improve the efficiency and quality of sharpening.
Description
Technical Field
The invention relates to the technical field of machining tool fixtures and equipment, in particular to a drill sharpening mechanism.
Background
Drilling technology is needed in machining, assembly and equipment maintenance, drilling is an indispensable machining process in the mechanical field, drilling quality directly influences assembly quality and equipment service life, tools needed by drilling are drill bits, and drilling quality directly influences hole quality. In the drilling process, drill bit abrasion, breakage and the like are easy to occur, and in order to improve the drilling quality, improve the production efficiency, reduce the production cost and meet the drilling requirements, the used drill bit needs to be resharpened, and the resharpened drill bit is put into use just like a new drill bit. Meanwhile, most of the drill bits on the market are standard drill bits, and in the daily drilling process, the geometric angles of the drill bits required by different materials are different, so that the drill bits are required to be sharpened according to requirements. The sharpening mechanism is a mechanism for sharpening a drill bit.
At present, most of the domestic enterprises mainly carry out sharpening on a grinding wheel by technical workers, so that the technical requirements on the workers are high, the difficulty is large, the geometrical angle of the sharpened drill and the symmetry of two main cutting edges are difficult to ensure, even a skilled technician also carries out repeated sharpening detection, and a great deal of time and labor are consumed. The quality of the sharpening quality of the drill bit directly influences the quality of the drilled holes, the drilling efficiency and the service life of the drill bit.
Disclosure of Invention
In order to solve the problems in the prior art, a common worker can easily grasp the sharpening skill of the drill, and the invention provides a sharpening mechanism of the drill.
The technical scheme adopted by the invention is as follows:
A drill sharpening mechanism comprises a support, a guide rail is connected to the support, a sliding seat is arranged on the guide rail, a matching central hole is formed in the sliding seat, a rotary table is arranged on the sliding seat, a V-shaped groove is formed in the upper surface of the rotary table along the diameter direction, a cylindrical central boss is arranged below the rotary table, the rotary table can rotate along the axis of the matching central hole, a boss is arranged at the right end of the sliding seat, and a rotary table locking screw is arranged on the boss;
The bracket is provided with a transverse adjusting groove, a vertical adjusting groove and an angle adjusting groove, the transverse adjusting groove is provided with a fixing screw, the fixing screw connects the fixing seat with the bracket, and the bracket can move along the transverse adjusting groove in the horizontal direction;
The vertical adjusting groove is internally provided with a rolling bearing, a connecting screw rod passes through the spring and the rolling bearing and is connected with the left end of the guide rail, the assembly consisting of the connecting screw rod, the rolling bearing, the guide rail, the sliding seat and the rotary table can move along the vertical adjusting groove in the vertical direction and also can rotate along the axis of the rolling bearing, and the angle adjusting groove is internally provided with an angle limiting pin rod which can move in the vertical direction.
The connecting screw rod and the rolling bearing can be fixed at any position in the vertical adjusting groove, and the angle limiting pin rod can also be fixed at any position in the angle adjusting groove.
The rotary table is characterized in that the upper surface of the rotary table is provided with arrow lines along the diameter direction, angle scales are arranged on sliding seats near the circumference of the rotary table correspondingly, springs are arranged between the connecting screw rods and the rolling bearings, the rolling bearings are plane needle bearings, and the sliding seats and the rotary table can slide along the guide rails.
And a spring is arranged between the connecting screw and the rolling bearing to play a role in automatic tensioning, so that the rotation is stable. The rolling bearing is preferably a plane needle bearing, and has the advantages of high load, high rigidity, compact structure and long service life, the sliding seat and the rotary table can slide along the guide rail, and the V-shaped groove on the rotary table is suitable for placing drills with different diameters.
When the cutter sharpening device is used, the height of the sharpening mechanism and the distance between the cutter sharpening mechanism and the grinding wheel are firstly adjusted according to the diameter of the grinding wheel, then the angle of the rotating disc and the angle limiting pin rod are adjusted according to the geometric angle required by sharpening a drill bit, the grinder is started, the handle of the drill bit is held by the left hand, and the head of the drill bit is pressed and stabilized in the V-shaped groove by the right hand, so that the cutter sharpening operation can be performed.
The beneficial effects of the invention are as follows:
1) The rotatable turntable is arranged, and the angles of the drill bits on the turntable are easily adjusted, so that the drill bits with different angles can be sharpened; the rotary table, the guide rail, the sliding seat and the like can rotate along the axes of the connecting screw rod and the rolling bearing, so that each part of the drill bit can be conveniently processed;
2) The rotary table and the sliding seat can move along the guide rail, so that the contact area between the drill bit to be sharpened and the circumference of the grinding wheel is increased, the sharpening is more uniform, and the service life of the grinding wheel is prolonged;
3) The plane needle bearing is selected, so that the high-load high-rigidity high-stability drill is stable in operation, suitable for fine machining of a drill bit, safe and reliable;
4) Setting an angle limiting pin rod, supporting the sliding seat, the rotary table and the drill bit, and ensuring that the polished main rear angle meets the requirements;
5) The invention has the advantages of simple structure, accurate and quick operation, low technical requirements on operators, reduced labor intensity, improved production efficiency, guaranteed processing quality, easy manufacture and great popularization and application values.
Drawings
Figure 1 is a schematic cross-sectional view of a drill sharpening mechanism.
Fig. 2 is a schematic top view of a drill sharpening mechanism.
Fig. 3 is a schematic left-hand view of a bit sharpening mechanism.
Fig. 4 is a right side view of the relationship between the turntable, the slide and the guide rail in the sharpening mechanism of the drill bit.
Fig. 5 is a schematic top view of the operation of the bit sharpening mechanism.
Fig. 6 is a schematic diagram of the relationship between the drill and the grinding wheel during operation of the drill sharpening mechanism.
In the figure, the device comprises a 1-turntable, a 2-V-shaped groove, a 3-turntable locking screw, a 4-sliding seat, a 5-guide rail, a 6-screw, a 7-bracket, 8, 9-plane needle bearings, a 10-spring, an 11-connecting screw, a 12-angle limiting pin rod, a 13-fixing screw, a 14-fixing seat, 15, 16-screws, a 17-transverse adjusting groove, a 18-vertical adjusting groove, a 19-angle adjusting groove, a 20-dial and 21-threaded holes.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a sharpening mechanism for a drill bit, fig. 2 is a schematic top view of a sharpening mechanism for a drill bit, which comprises a bracket 7, a guide rail 5 connected with the bracket, a slide seat 4 arranged on the guide rail, a matching center hole arranged on the slide seat, a rotary disk 1 arranged on the slide seat, a V-shaped groove 2 arranged along the diameter direction on the rotary disk 1, a cylindrical center boss arranged below the rotary disk 1, a boss arranged at the right end of the slide seat 4 and a rotary disk locking screw 3 arranged on the boss.
The bracket 7 is provided with a transverse adjusting groove 17, a vertical adjusting groove 18 and an angle adjusting groove 19, the transverse adjusting groove 17 is provided with a fixing screw 13, the fixing screw 13 connects the fixing seat 14 with the bracket 7, and the bracket 7 can move along the transverse adjusting groove 17 in the horizontal direction.
The vertical adjusting groove 18 is internally provided with a spring 10 and rolling bearings 8 and 9, the connecting screw 11 passes through the spring 10 and the rolling bearings 8 and 9 and is connected with the left end of the guide rail 5, the connecting screw 11, the rolling bearings 8 and 9, and an assembly formed by the guide rail 5, the sliding seat 4 and the rotary table 1 can move along the vertical adjusting groove 18 in the vertical direction or rotate along the axes of the rolling bearings 8 and 9, the angle adjusting groove 19 is internally provided with an angle limiting pin rod 12, and the limiting pin rod 12 can move in the vertical direction.
The upper surface of the turntable 1 is provided with arrow lines along the diameter direction, corresponding to the arrow lines, the sliding seat 4 near the circumference of the turntable 1 is provided with angle scales 20, a spring 10 is arranged between the connecting screw 11 and the rolling bearing 9, the rolling bearing is a plane needle bearing, and the sliding seat 4 and the turntable 1 can slide along the guide rail 5.
The working process of the invention takes the sharpening of a standard twist drill as an example:
firstly, fixing a drill sharpening mechanism on a table grinder by using screws 15 and 16;
And secondly, placing the drill bit to be sharpened on the V-shaped groove 2, and adjusting the connecting screw 11 according to the diameter of the grinding wheel to adjust the height of the components such as the guide rail 5, the sliding seat 4, the rotary table 1 and the like along the vertical adjusting groove 18 so that the main cutting edge of the drill bit is slightly higher than the horizontal center line of the grinding wheel.
And thirdly, the tension of the spring 10 is adjusted by the connecting screw 11, and the guide rail 5 rotates smoothly under the condition of ensuring no axial movement.
Fourth, the distance between a bit sharpening mechanism and a grinding wheel is adjusted through a fixing screw 13, so that the enough safe distance between the turntable 1 and the sliding seat 4 assembly and the grinding wheel is ensured, the collision cannot be caused, and the common distance is about 5mm;
fifth, the turntable 1 is rotated to align the arrow with the graduation 58 o-60o, which is the angle between the bit axis and the grinding wheel axis, i.e., half of the vertex angle (118 o±2o), locking the turntable locking screw 3, as shown in fig. 5.
Sixth, the angle stop pin 12 is adjusted to tilt the drill bit down to about 8 o-15o, as shown in fig. 6.
After the steps are adjusted, the standard twist drill can be sharpened, one side can be sharpened before the other side is sharpened, if the grinding amount is large, the two sides can be subjected to intersection sharpening, two main cutting edges of the drill sharpened by the drill sharpening mechanism are symmetrical, and the geometric angle meets the requirements of the standard twist drill.
Claims (1)
1. A drill sharpening mechanism, characterized in that:
The novel rotary table comprises a support (7), wherein the support is connected with a guide rail (5), a sliding seat (4) is arranged on the guide rail, a matched central hole is formed in the sliding seat (4), a rotary table (1) is arranged on the sliding seat, a V-shaped groove (2) is formed in the upper surface of the rotary table (1) along the diameter direction, a drill bit to be sharpened is placed on the V-shaped groove (2), a cylindrical central boss is arranged below the rotary table (1), the rotary table (1) can rotate along the axis of the matched central hole, a boss is arranged at the right end of the sliding seat (4), and a rotary table locking screw (3) is arranged on the boss;
The bracket (7) is provided with a transverse adjusting groove (17), a vertical adjusting groove (18) and an angle adjusting groove (19), the transverse adjusting groove (17) is provided with a fixing screw (13), the fixing screw (13) is used for connecting the fixing seat (14) with the bracket (7), and the bracket (7) can move along the transverse adjusting groove (17) in the horizontal direction;
the vertical adjusting groove (18) is internally provided with rolling bearings (8, 9), a connecting screw rod (11) is arranged in the rolling bearings (8, 9), a spring (10) is arranged between the connecting screw rod (11) and the rolling bearings (8, 9), the connecting screw rod (11) passes through the spring (10) and the rolling bearings (8, 9) and is connected with the left end of the guide rail (5), the connecting screw rod (11), the rolling bearings (8, 9), the guide rail (5), the sliding seat (4) and the turntable (1) can move along the vertical adjusting groove (18) in the vertical direction or rotate along the axis of the rolling bearings (8, 9), and the angle adjusting groove (19) is internally provided with an angle limiting pin rod (12), and the limiting pin rod (12) can move in the vertical direction;
The rotary table (1) is provided with arrow lines along the diameter direction, angle scales (20) are correspondingly arranged on the sliding seat (4) near the circumference of the rotary table (1), the rolling bearings (8, 9) are plane needle bearings, the sliding seat (4) and the rotary table (1) can slide along the guide rail (5), and the drill sharpening mechanism fixes the fixed seat (14) on the table grinder by using screws (15, 16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110273692.7A CN112935944B (en) | 2021-03-15 | 2021-03-15 | Drill bit sharpening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110273692.7A CN112935944B (en) | 2021-03-15 | 2021-03-15 | Drill bit sharpening mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112935944A CN112935944A (en) | 2021-06-11 |
| CN112935944B true CN112935944B (en) | 2025-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110273692.7A Active CN112935944B (en) | 2021-03-15 | 2021-03-15 | Drill bit sharpening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112935944B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592479B (en) * | 2022-12-14 | 2023-03-10 | 江苏万金精密刀具有限公司 | Grinding device of cutter drill bit for automobile part machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014193168A1 (en) * | 2013-05-31 | 2014-12-04 | Jung Hee Kyung | Screw tap grinding apparatus |
| CN214418336U (en) * | 2021-03-15 | 2021-10-19 | 吴锡球 | Drill sharpening mechanism |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062269U (en) * | 1990-01-19 | 1990-09-19 | 肖大益 | Universal tool mill with group drill edge milling function |
| JP2607415B2 (en) * | 1992-09-22 | 1997-05-07 | 株式会社辻技研 | Drill edge grinding machine |
| CN2480102Y (en) * | 2001-05-31 | 2002-03-06 | 重庆工学院 | Machine for sharpening twist drill |
| KR101148227B1 (en) * | 2009-08-19 | 2012-05-21 | 정석환 | Cutting device of a drill blade |
| CN103331656B (en) * | 2012-10-21 | 2016-01-13 | 泰州市利优精密机械有限公司 | A kind of drill grinder |
| CN202964303U (en) * | 2012-12-24 | 2013-06-05 | 镇江大有硬质材料有限公司 | Diamond drilling tool grinding clamp |
| CN105773323B (en) * | 2016-05-11 | 2018-06-05 | 杭州汉派模具有限公司 | A kind of milling drum |
| CN206123338U (en) * | 2016-08-30 | 2017-04-26 | 李剑波 | Drill bit passivation machine |
| CN107756149A (en) * | 2017-10-30 | 2018-03-06 | 赵建秋 | A kind of drill bit arrangement for grinding |
| CN207888332U (en) * | 2018-02-27 | 2018-09-21 | 邯钢集团衡水薄板有限责任公司 | A kind of small diameter drill bit sharpening equipment |
| CN111618670A (en) * | 2020-06-15 | 2020-09-04 | 陕西理工大学 | Adjustable twist drill grinding device |
-
2021
- 2021-03-15 CN CN202110273692.7A patent/CN112935944B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014193168A1 (en) * | 2013-05-31 | 2014-12-04 | Jung Hee Kyung | Screw tap grinding apparatus |
| CN214418336U (en) * | 2021-03-15 | 2021-10-19 | 吴锡球 | Drill sharpening mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112935944A (en) | 2021-06-11 |
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