CN108942427B - Composite screw tap drill chamfer grinding device and grinding process thereof - Google Patents
Composite screw tap drill chamfer grinding device and grinding process thereof Download PDFInfo
- Publication number
- CN108942427B CN108942427B CN201810895397.3A CN201810895397A CN108942427B CN 108942427 B CN108942427 B CN 108942427B CN 201810895397 A CN201810895397 A CN 201810895397A CN 108942427 B CN108942427 B CN 108942427B
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- Prior art keywords
- tap drill
- drill bit
- grinding
- rod
- tap
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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
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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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
- B24B3/18—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of taps or reamers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a composite screw tap drill chamfer grinding device and a grinding process thereof. The device comprises a clamp (2) for clamping the tap drill (1) and a grinding wheel (3) for grinding the tap drill (1); the support device (4) for supporting the drill (1) is arranged on the lower portion of the tap drill (1), and the support device (4) has the following functions: and longitudinal displacement fluctuation of the tap rotary head (1) in the grinding process is detected, and a resetting device is arranged to enable the tap drill bit (1) to return so as to keep the stability of the tap drill bit (1) in the grinding process. The invention provides a composite screw tap drill chamfer grinding device which is reasonable in structure and can well process a composite screw tap drill and a grinding process thereof.
Description
Background
The invention relates to a composite screw tap drill chamfer grinding device and a grinding process thereof, belonging to the technical field of cutter processing.
Disclosure of Invention
In order to improve the use performance of the composite tap drill, the composite tap drill is chamfered during the machining process, and the position of the composite tap drill is inevitably fluctuated during the chamfering treatment process of the existing composite tap, so that the machining quality of the composite tap drill is influenced, and further improvement is needed.
Disclosure of Invention
Aiming at the defects, the invention aims to provide the composite screw tap drill chamfer grinding device which is reasonable in structure and can well process the composite screw tap drill and the grinding process thereof.
The technical scheme adopted by the invention is as follows: the composite tap drill chamfer grinding device comprises a clamp (2) for clamping a tap drill (1) and a grinding wheel (3) for grinding the tap drill (1);
the support device (4) for supporting the drill (1) is arranged on the lower portion of the tap drill (1), and the support device (4) has the following functions: and longitudinal displacement fluctuation of the tap rotary head (1) in the grinding process is detected, and a resetting device is arranged to enable the tap drill bit (1) to return so as to keep the stability of the tap drill bit (1) in the grinding process.
The supporting device (4) comprises a supporting rod (41) for supporting the tap drill (1), the supporting rod (41) comprises a fixed rod (411) which is fixedly arranged and a movable rod (412) which is connected to the fixed rod (411) and can move up and down relative to the fixed rod (411), and the movable rod (412) is in contact with the tap drill (1) and supports the tap drill (1);
the fixing rod (411) and the moving rod (412) are arranged in a hollow mode, a cavity communicated with high-pressure gas is formed inside the fixing rod, an air hole (42) is formed in the side wall of the supporting rod (41), a displacement sensor (43) is arranged on the moving rod (412), the displacement sensor (43) is used for detecting the fluctuation amount of the longitudinal position of the moving rod (412), a control device is arranged for controlling the gas pressure in the cavity, and the tap drill bit (1) is reset by changing the gas pressure.
A high-pressure gas storage container (5) is communicated with the cavity through the air hole (42), and the communication or the cut-off between the high-pressure gas storage container (5) and the cavity is controlled through a control device.
The air hole (42) is arranged on the lower side of the support rod (41), a sleeve ring (44) which moves up and down relative to the moving rod (412) is arranged in the moving rod (412), and a spring (6) is arranged between the inner wall of the top of the moving rod (412) and the upper surface of the sleeve ring (44).
The composite screw tap drill chamfering and grinding process comprises the following steps:
1) clamping the tap drill (1) on the clamp (2), and then installing a grinding wheel (3) at a corresponding position for standby;
2) grinding the screw tap drill bit (1), wherein in the grinding process, when the screw tap drill bit (1) is detected to fluctuate up and down, a displacement sensor (43) detects the position fluctuation amount of the screw tap drill bit (1), and then high-pressure gas is input or output into the cavity to change the pressure in the cavity, so that the movable rod (412) is driven to move up and down, and then the screw tap drill bit (1) is driven to move up and down, and the screw tap drill bit (1) is stably and orderly machined within a certain fluctuation range;
3) in the process of 2), the structural form of the lantern ring (44) can be adopted, the moving rod (412) is driven to move up and down through the lantern ring (44), so that the screw tap drill bit (1) is driven to move up and down, and the smooth and orderly machining of the screw tap drill bit (1) is realized.
The invention has the advantages that: according to the invention, through reasonable arrangement of the structure of the chamfer grinding device, the composite screw conical drill bit can be driven to return through the change of the pressure of the high-pressure gas in the cavity if the composite screw conical drill bit fluctuates in the longitudinal direction in the grinding process, so that the composite screw conical drill bit can be kept stable in the grinding process, and a good technical effect is obtained through practical application.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a screw tap drill, 2 is a clamp, 3 is a grinding wheel, 4 is a supporting device, 5 is a high-pressure gas storage container, and 6 is a spring;
41 is a support rod, 42 is an air hole, 43 is a displacement sensor, and 44 is a lantern ring;
the fixed bar 411 and the movable bar 412 are provided.
Detailed Description
The chamfer grinding device for the composite tap drill comprises a clamp 2 for clamping a tap drill 1 and a grinding wheel 3 for grinding the tap drill 1;
the support device 4 for supporting the drill bit 1 is arranged at the lower part of the tap drill bit 1, and the support device 4 has the following functions: and detecting the longitudinal displacement fluctuation of the tap rotary head 1 in the grinding process, and arranging a resetting device to enable the tap drill bit 1 to return so as to keep the stability of the tap drill bit 1 in the grinding process.
The supporting device 4 comprises a supporting rod 41 for supporting the tap drill 1, the supporting rod 41 comprises a fixed rod 411 and a movable rod 412 which is connected to the fixed rod 411 and can move up and down relative to the fixed rod 411, and the movable rod 412 is in contact with the tap drill 1 and supports the tap drill 1;
the fixing rod 411 and the moving rod 412 are arranged in a hollow mode, a cavity communicated with high-pressure gas is formed inside the fixing rod 411 and the moving rod 412, an air hole 42 is formed in the side wall of the supporting rod 41, a displacement sensor 43 is arranged on the moving rod 412, the displacement sensor 43 is used for detecting the fluctuation amount of the longitudinal position of the moving rod 412, a control device is arranged for controlling the gas pressure in the cavity, and the tap drill 1 is reset by changing the gas pressure.
The high-pressure gas storage container 5 is communicated with the cavity through the air hole 42, and the communication or the cut-off between the high-pressure gas storage container 5 and the cavity is controlled by a control device.
The air hole 42 is arranged at the lower side of the support rod 41, a collar 44 which moves up and down relative to the moving rod 412 is arranged inside the moving rod 412, and a spring 6 is arranged between the inner wall of the top of the moving rod 412 and the upper surface of the collar 44.
The composite screw tap drill chamfering and grinding process comprises the following steps:
1) clamping the tap drill 1 on the clamp 2, and then installing a grinding wheel 3 at a corresponding position for standby;
2) grinding the tap drill bit 1, wherein in the grinding process, when the tap drill bit 1 is detected to fluctuate up and down, the displacement sensor 43 detects the position fluctuation amount of the tap drill bit 1, and then high-pressure gas is input or output into or out of the cavity to change the pressure in the cavity, so that the movable rod 412 is driven to move up and down, and then the tap drill bit 1 is driven to move up and down, so that the tap drill bit 1 is stably and orderly machined within a certain fluctuation range;
3) in the process of 2), the structural form of the lantern ring 44 can be adopted, and the moving rod 412 is driven to move up and down through the lantern ring 44, so that the tap drill bit 1 is driven to move up and down, and the tap drill bit 1 can be machined stably and orderly.
The working process of the invention is as follows: when the displacement sensor 43 detects that the fluctuation amount of the tap drill 1 exceeds a certain value, the certain value is determined according to the machining precision of the tap drill 1 and other requirements, at the moment, the displacement sensor 43 sends a detected signal to the control device, the control device sends a signal to change the magnitude of the gas pressure in the cavity by inputting or discharging high-pressure gas into or from the cavity, so that the moving rod 412 is driven to move up and down, when the displacement sensor 43 detects that the tap drill 1 returns, the pressure of the gas in the cavity is stabilized at the moment, the up-and-down stress balance of the composite tap drill 1 is kept, the stability of the position of the tap drill 1 in the longitudinal direction is realized in a reciprocating mode, the machining performance of the tap drill 1 is guaranteed, and the machining precision of the tap drill 1 is improved.
The invention further adopts a structural form of the lantern ring 44 and the spring 6 in the moving rod 412, and the design purpose is to enable the moving rod 412 to move up and down more stably, so that the up and down movement of the tap drill 1 is ensured to be more stable, the relative defects caused by overlarge moving amplitude of the moving rod 412 and the tap drill 1 due to sudden change of gas pressure in a cavity caused by certain factors are prevented, and the processing accuracy of the tap drill 1 is further ensured.
In order to maintain the processing stability, the invention processes the tap drill 1 in a manner that the grinding wheel 3 rotates around the tap drill.
Claims (5)
1. The chamfer grinding device for the composite tap drill bit is characterized by comprising a clamp (2) for clamping the tap drill bit (1) and a grinding wheel (3) for grinding the tap drill bit (1);
the support device (4) is arranged on the lower portion of the tap drill (1) and used for supporting the tap drill (1), and the support device (4) has the following functions: detecting longitudinal displacement fluctuation of the tap drill bit (1) in the grinding process, and arranging a resetting device to enable the tap drill bit (1) to return so as to keep the stability of the tap drill bit (1) in the grinding process;
the supporting device (4) comprises a supporting rod (41) for supporting the tap drill (1), the supporting rod (41) comprises a fixed rod (411) which is fixedly arranged and a movable rod (412) which is connected to the fixed rod (411) and can move up and down relative to the fixed rod (411), and the movable rod (412) is in contact with the tap drill (1) and supports the tap drill (1);
the screw tap drill bit is characterized in that the fixing rod (411) and the moving rod (412) are arranged in a hollow mode, a cavity communicated with high-pressure gas is formed in the fixing rod (411), air holes (42) are formed in the side wall of the supporting rod (41), a displacement sensor (43) is arranged on the moving rod (412), the displacement sensor (43) is used for detecting the fluctuation amount of the longitudinal position of the moving rod (412), a control device is arranged for controlling the gas pressure in the cavity, and the screw tap drill bit (1) is reset by changing the gas pressure.
2. The apparatus for grinding and chamfering a composite tap drill according to claim 1, wherein a high pressure gas storage container (5) is provided to communicate with the cavity through the gas hole (42), and the communication or cut-off between the high pressure gas storage container (5) and the cavity is controlled by a control means.
3. The apparatus for grinding and chamfering a composite tap drill according to claim 1, wherein the air hole (42) is provided at a lower side of the support rod (41), a collar (44) moving up and down with respect to the movable rod (412) is provided inside the movable rod (412), and a spring (6) is provided between an inner wall of a top portion of the movable rod (412) and an upper surface of the collar (44).
4. The composite tap drill chamfer grinding device of claim 3, wherein the composite tap drill chamfer grinding device is used for conducting chamfer grinding on the composite tap drill by adopting the following steps:
1) clamping a tap drill (1) on a clamp (2), and then installing a grinding wheel (3) at a corresponding position for standby;
2) the screw tap drill bit (1) is ground, and in the grinding process, when the screw tap drill bit (1) is detected to fluctuate up and down, the displacement sensor (43) detects the position fluctuation amount of the screw tap drill bit (1), and then the pressure in the cavity is changed by inputting or outputting high-pressure gas into the cavity, so that the movable rod (412) is driven to move up and down, and then the screw tap drill bit (1) is driven to move up and down, and the screw tap drill bit (1) is stably and orderly processed within a certain fluctuation range.
5. The composite tap drill bit chamfer grinding device according to claim 4, wherein in the step 2), the structural form of the sleeve ring (44) is adopted, and the movable rod (412) is driven to move up and down through the sleeve ring (44), so that the tap drill bit (1) is driven to move up and down, and the smooth and orderly processing of the tap drill bit (1) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895397.3A CN108942427B (en) | 2018-08-08 | 2018-08-08 | Composite screw tap drill chamfer grinding device and grinding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895397.3A CN108942427B (en) | 2018-08-08 | 2018-08-08 | Composite screw tap drill chamfer grinding device and grinding process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108942427A CN108942427A (en) | 2018-12-07 |
| CN108942427B true CN108942427B (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810895397.3A Active CN108942427B (en) | 2018-08-08 | 2018-08-08 | Composite screw tap drill chamfer grinding device and grinding process thereof |
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| CN (1) | CN108942427B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328565A (en) * | 2019-08-19 | 2019-10-15 | 丹阳河工工具有限公司 | A kind of clamping device for screw tap grinding |
| CN111531416A (en) * | 2020-05-12 | 2020-08-14 | 成都新成量工具有限公司 | Machining method of taper pipe tap |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914451A (en) * | 1982-07-12 | 1984-01-25 | Daihatsu Motor Co Ltd | Method of polishing tap and device therefor |
| CN85202477U (en) * | 1985-05-17 | 1986-08-20 | 上海自行车三厂 | Screw tap-machining device |
| DE3236440C2 (en) * | 1982-10-01 | 1989-05-24 | Reishauer Ag, Wallisellen, Ch | |
| CN1954965A (en) * | 2005-10-27 | 2007-05-02 | 浙江吉利汽车研究院有限公司 | Multi-type tap grinding machine |
| CN101486155A (en) * | 2009-02-20 | 2009-07-22 | 济南轨道交通装备有限责任公司 | Spiral tap sharpening device |
| CN102294625A (en) * | 2011-09-02 | 2011-12-28 | 马鞍山方圆回转支承股份有限公司 | Screw tap grinding device |
| CN202174451U (en) * | 2011-07-29 | 2012-03-28 | 台州瓦尔特工具制造有限公司 | Screw tap multi-line grinding machine |
| CN107214543A (en) * | 2017-06-30 | 2017-09-29 | 台山市仁丰五金电器有限公司 | A kind of cylindrical work clamping device for Digit Control Machine Tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205703740U (en) * | 2016-04-28 | 2016-11-23 | 浙江工业大学 | A kind of polishing workpiece vacuum fixture self-checking device |
-
2018
- 2018-08-08 CN CN201810895397.3A patent/CN108942427B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914451A (en) * | 1982-07-12 | 1984-01-25 | Daihatsu Motor Co Ltd | Method of polishing tap and device therefor |
| DE3236440C2 (en) * | 1982-10-01 | 1989-05-24 | Reishauer Ag, Wallisellen, Ch | |
| CN85202477U (en) * | 1985-05-17 | 1986-08-20 | 上海自行车三厂 | Screw tap-machining device |
| CN1954965A (en) * | 2005-10-27 | 2007-05-02 | 浙江吉利汽车研究院有限公司 | Multi-type tap grinding machine |
| CN101486155A (en) * | 2009-02-20 | 2009-07-22 | 济南轨道交通装备有限责任公司 | Spiral tap sharpening device |
| CN202174451U (en) * | 2011-07-29 | 2012-03-28 | 台州瓦尔特工具制造有限公司 | Screw tap multi-line grinding machine |
| CN102294625A (en) * | 2011-09-02 | 2011-12-28 | 马鞍山方圆回转支承股份有限公司 | Screw tap grinding device |
| CN107214543A (en) * | 2017-06-30 | 2017-09-29 | 台山市仁丰五金电器有限公司 | A kind of cylindrical work clamping device for Digit Control Machine Tool |
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| Publication number | Publication date |
|---|---|
| CN108942427A (en) | 2018-12-07 |
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Effective date of registration: 20230703 Address after: No. 9, Guangsheng Road, Guangling District, Yangzhou City, Jiangsu Province 225000 Patentee after: Jiangsu siruite Tool Co.,Ltd. Address before: 225200 No.1, zhoujialou industrial concentration area, Guocun Town, Jiangdu District, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU JIANGYU TOOLS Co.,Ltd. |