CN107971851B - Centre bore grinding device - Google Patents
Centre bore grinding device Download PDFInfo
- Publication number
- CN107971851B CN107971851B CN201711432096.9A CN201711432096A CN107971851B CN 107971851 B CN107971851 B CN 107971851B CN 201711432096 A CN201711432096 A CN 201711432096A CN 107971851 B CN107971851 B CN 107971851B
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- CN
- China
- Prior art keywords
- arc
- shaped elastic
- polishing head
- polishing
- sand paper
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
-
- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a center hole polishing device, and relates to the technical field of polishing devices. The polishing machine comprises a polishing machine main body and a polishing head connected with the polishing machine main body, wherein a pair of sand paper clamping holes are formed in the polishing head; the polishing head is provided with arc-shaped elastic pieces at the hole walls of the sand paper clamping holes along the length direction, the bending direction of the arc-shaped elastic pieces is opposite to the rotating direction of the polishing head, a bearing surface is formed at the outer sides of the arc-shaped elastic pieces, and one side, far away from the bearing surface, of the arc-shaped elastic pieces is connected with the hole walls of the sand paper clamping holes; the arc shell fragment is equipped with the holder that is used for centre gripping abrasive paper in the one end that keeps away from the grinding head.
Description
Technical Field
The invention relates to the technical field of polishing devices, in particular to a center hole polishing device.
Background
When the central hole of the hollow shaft of the motor train unit is machined, the center Kong Chaocha and the surface are provided with burrs or iron filings to generate jumping, so that the machining precision is reduced and waste products are easily generated. Therefore, before machining, the center hole needs to be polished and repaired so as to meet the requirements of the machining process. Currently, the polishing and repairing method for the center hole is generally completed by manually polishing with sand paper. This polishing method is difficult to ensure polishing repair accuracy and causes new out-of-tolerance. In addition, manual polishing has the defects of low working efficiency, high labor intensity and easy injury of operators.
Disclosure of Invention
The invention aims to solve the technical problems that the existing polishing work efficiency of a center hole is low, the labor intensity is high, and operators are easy to be injured.
In order to solve the technical problems, the invention provides a center hole polishing device, which comprises a polishing machine main body and a polishing head connected with the polishing machine main body, wherein a pair of sand paper clamping holes are formed in the polishing head;
The polishing head is provided with arc-shaped elastic pieces at the hole walls of the sand paper clamping holes along the length direction, the bending direction of the arc-shaped elastic pieces is opposite to the rotating direction of the polishing head, a bearing surface is formed at the outer sides of the arc-shaped elastic pieces, and one side, far away from the bearing surface, of the arc-shaped elastic pieces is connected with the hole walls of the sand paper clamping holes;
the arc shell fragment is equipped with the holder that is used for centre gripping abrasive paper in the one end that keeps away from the grinding head.
The technical effects are as follows: the grinding head is driven by the grinding machine main body to work, the sand paper clamping hole is used for placing sand paper, the two arc-shaped elastic sheets are connected with the hole wall of the corresponding sand paper clamping hole, one side of each arc-shaped elastic sheet, which is far away from the bearing surface, is connected with the hole wall of the sand paper clamping hole, the sand paper is inserted into the sand paper clamping hole, the part, which extends out of the sand paper clamping hole, can be contacted with the bearing surface of the arc-shaped elastic sheet, when the grinding machine main body works, the grinding head starts to rotate so as to drive the sand paper and the arc-shaped elastic sheets to rotate, the sand paper can be contacted with the hole wall of the center hole to grind the hole wall of the center hole, in addition, the sand paper can be abutted against the bearing surface of the arc-shaped elastic sheets, so that the sand paper can be tightly abutted against the hole wall of the center hole, the grinding effect of the sand paper can be improved, and the grinding efficiency can be improved, and the arc-shaped elastic sheets can deform to form a certain operation force space for operators, when the force of the operators is large, the sand paper is prevented from being damaged by the arc-shaped elastic sheets, the grinding head is not to be easily attached to the center hole, and the grinding efficiency is high, and the grinding efficiency is convenient to be kept in a stable, and the grinding condition, and the grinding efficiency is easy to be clamped by the grinding the sand paper on the center hole on the side.
The technical scheme of the invention is as follows:
Further, the clamping piece is including setting up the clamp plate that keeps away from bearing face one side at the arc shell fragment, clamp plate one end and arc elastic piece fixed connection, the other end with form the abrasive cloth entry between the one end that the grinding head was kept away from to the arc shell fragment, be equipped with compression screw on the clamp plate, compression screw's direction of motion is perpendicular with the arc shell fragment.
In the foregoing central hole polishing device, a fixing needle is disposed between the arc-shaped elastic sheet and the pressing plate, and the fixing needle is fixedly connected with the arc-shaped elastic sheet.
In the foregoing central hole polishing device, the polishing head is a conical polishing head, and the taper of the conical polishing head is 60 °.
In the foregoing central hole polishing device, the side edge of the arc-shaped elastic sheet away from the conical polishing head is parallel to the outer side wall of the conical polishing head.
The beneficial effects of the invention are as follows:
(1) The clamping piece comprises a pressing plate and a compression screw, after the abrasive paper is attached to the arc-shaped elastic sheet, one end, away from each other, of the abrasive paper is embedded between the pressing plate and the arc-shaped elastic sheet through the abrasive cloth inlet, then the compression screw is screwed, and the abrasive cloth is tightly mortised on the arc-shaped elastic sheet through the compression screw, so that the abrasive cloth is stably limited; in addition, the fixed needle can penetrate through the abrasive cloth to further limit the abrasive cloth stably;
(2) The polishing head is a conical polishing head, can be suitable for polishing the shape of the central hole of the hollow shaft of the motor train unit, and the side edge of the arc-shaped elastic sheet, which is far away from the conical polishing head, is parallel to the outer side wall of the conical polishing head, so that the arc-shaped elastic sheet can be suitable for polishing the central hole of the hollow shaft of the motor train unit.
Drawings
FIG. 1 is a schematic view of an arc spring plate according to the present invention;
FIG. 2 is a schematic diagram of a structure for embodying sandpaper clamping holes of the present invention;
Fig. 3 is an enlarged view of a in fig. 2.
Wherein: 1. a sander body; 2. polishing head; 21. sand paper clamping holes; 3. an arc-shaped elastic sheet; 31. a bearing surface; 4. a pressing plate; 41. a abrasive cloth inlet; 42. a compression screw; 43. the needle is fixed.
Detailed Description
The structure of the center hole polishing device provided by the embodiment is shown in figures 1-3.
The center hole polishing device comprises a polishing machine main body 1 and a polishing head 2 connected with the polishing machine main body 1, wherein a pair of sand paper clamping holes 21 are formed in the polishing head 2, the polishing head 2 is driven to work by the polishing machine main body 1, and the sand paper clamping holes 21 are used for placing sand paper.
The polishing head 2 is provided with arc shrapnel 3 at the hole wall of the sand paper clamping hole 21 along the length direction, the bending direction of the arc shrapnel 3 is opposite to the rotation direction of the polishing head 2, the outer side of the arc shrapnel 3 forms a bearing surface 31, one side of the arc shrapnel 3 away from the bearing surface 31 is connected with the hole wall of the sand paper clamping hole 21, then sand paper is inserted into the sand paper clamping hole 21, and the part extending out of the sand paper clamping hole 21 is contacted with the bearing surface 31 of the arc shrapnel 3.
The clamping piece for clamping the sand paper is arranged at one end, far away from the polishing head 2, of the arc-shaped elastic sheet 3, the clamping piece comprises a pressing plate 4 arranged at one side, far away from the bearing surface 31, of the arc-shaped elastic sheet 3, one end of the pressing plate 4 is fixedly connected with the arc-shaped elastic sheet, a sand cloth inlet 41 is formed between the other end of the pressing plate 4 and one end, far away from the polishing head 2, of the arc-shaped elastic sheet 3, a pressing screw 42 is arranged on the pressing plate 4, the moving direction of the pressing screw 42 is perpendicular to the arc-shaped elastic sheet 3, after the sand paper is attached to the arc-shaped elastic sheet 3, the sand paper is embedded between the pressing plate 4 and the arc-shaped elastic sheet 3 at one end, far away from each other, of the sand paper is tightly pressed on the arc-shaped elastic sheet 3 by the pressing screw 42, and therefore the sand cloth is stably limited; in addition, the fixing needle 43 can penetrate through the abrasive cloth to further limit the abrasive cloth stably.
A fixing needle 43 is arranged between the arc-shaped elastic sheet 3 and the pressing plate 4, the fixing needle 43 is fixedly connected with the arc-shaped elastic sheet 3, the fixing needle 43 can penetrate through the abrasive cloth, and further the abrasive cloth is stably limited.
The polishing head 2 is a conical polishing head, the taper of the conical polishing head is 60 degrees, and the side edge of the arc-shaped elastic sheet 3, which is far away from the conical polishing head, is parallel to the outer side wall of the conical polishing head.
The specific implementation is as follows:
The abrasive paper penetrates into the abrasive paper clamping hole 21, the abrasive paper is tightly attached to the bearing surface 31 of the arc-shaped elastic sheet 3, two ends of the abrasive paper are limited by the compression screw 42 and the fixing needle 43, the grinding machine body 1 is started, the grinding head 2 starts to rotate, so that the abrasive paper and the arc-shaped elastic sheet 3 are driven to rotate, the abrasive paper can contact the hole wall of the center hole to be ground, the hole wall of the center hole is ground, the abrasive paper can be abutted by the bearing surface 31 of the arc-shaped elastic sheet 3, the abrasive paper can be tightly abutted to the hole wall of the center hole to be ground, the grinding effect of the abrasive paper on the hole wall of the center hole can be improved, the grinding efficiency is improved, and the arc-shaped elastic sheet 3 can provide a certain operation force space for operators.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (3)
1. A centre bore grinding device, its characterized in that: the polishing machine comprises a polishing machine main body (1) and a polishing head (2) connected with the polishing machine main body (1), wherein a pair of sand paper clamping holes (21) are formed in the polishing head (2);
the polishing head (2) is provided with arc-shaped elastic pieces (3) at the hole walls of the sand paper clamping holes (21) along the length direction, the bending direction of the arc-shaped elastic pieces (3) is opposite to the rotating direction of the polishing head (2), the outer sides of the arc-shaped elastic pieces (3) form bearing surfaces (31), and one sides of the arc-shaped elastic pieces (3) far away from the bearing surfaces (31) are connected with the hole walls of the sand paper clamping holes (21);
the arc-shaped elastic sheet (3) is provided with a clamping piece for clamping sand paper at one end far away from the polishing head (2);
The clamping piece comprises a pressing plate (4) arranged on one side, far away from the bearing surface (31), of the arc-shaped elastic piece (3), one end of the pressing plate (4) is fixedly connected with the arc-shaped elastic piece, a sand cloth inlet (41) is formed between the other end of the pressing plate and one end, far away from the polishing head (2), of the arc-shaped elastic piece (3), a pressing screw (42) is arranged on the pressing plate (4), and the movement direction of the pressing screw (42) is perpendicular to the arc-shaped elastic piece (3);
the polishing head (2) is a conical polishing head, and the taper of the head of the conical polishing head is 60 degrees.
2. A centre hole grinding apparatus as defined in claim 1, wherein: a fixing needle (43) is arranged between the arc-shaped elastic sheet (3) and the pressing plate (4), and the fixing needle (43) is fixedly connected with the arc-shaped elastic sheet (3).
3. A centre hole grinding apparatus as defined in claim 1, wherein: the side edge of the arc-shaped elastic sheet (3) far away from the conical polishing head is parallel to the outer side wall of the conical polishing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432096.9A CN107971851B (en) | 2017-12-26 | 2017-12-26 | Centre bore grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432096.9A CN107971851B (en) | 2017-12-26 | 2017-12-26 | Centre bore grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107971851A CN107971851A (en) | 2018-05-01 |
| CN107971851B true CN107971851B (en) | 2024-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711432096.9A Active CN107971851B (en) | 2017-12-26 | 2017-12-26 | Centre bore grinding device |
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| Country | Link |
|---|---|
| CN (1) | CN107971851B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838762A (en) * | 2018-05-19 | 2018-11-20 | 芜湖新利德玻璃制品有限公司 | A kind of glass orifice automatic sander |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201632899U (en) * | 2009-11-27 | 2010-11-17 | 臧珂 | Sand paper grinder |
| CN102179763A (en) * | 2011-02-22 | 2011-09-14 | 智奇铁路设备有限公司 | Central hole polishing device for hollow shaft of motor train unit |
| CN203156488U (en) * | 2013-02-24 | 2013-08-28 | 张文豹 | Split type ergonomic rubber polishing block |
| CN203245745U (en) * | 2013-04-02 | 2013-10-23 | 雷博尔自动化系统（惠州）有限公司 | Polishing head of automatic polisher for precision plastic parts |
| CN104044048A (en) * | 2014-06-20 | 2014-09-17 | 山东电力建设第一工程公司 | Polishing and cleaning tool for inner holes of tube plates of condensers |
| CN204397564U (en) * | 2014-11-30 | 2015-06-17 | 刘畅 | A kind of easy sander |
| CN204504989U (en) * | 2015-01-13 | 2015-07-29 | 山东朗法博粉末涂装科技有限公司 | Simple removable sand paper formula grinding head |
| CN205201263U (en) * | 2015-11-12 | 2016-05-04 | 中船动力有限公司 | Diesel engine deep hole milling tools |
| CN205835061U (en) * | 2016-06-28 | 2016-12-28 | 东莞捷荣技术股份有限公司 | A kind of arc grinding head and polisher thereof |
| CN207900822U (en) * | 2017-12-26 | 2018-09-25 | 苏州贝尔纳德铁路设备有限公司 | A kind of central hole polishing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10046065A1 (en) * | 2000-09-18 | 2002-03-28 | Hilti Ag | Hand-guided electric sanding tool has clamp device with clamp surface and cooperating pivoted clamp frame for securing sanding paper |
-
2017
- 2017-12-26 CN CN201711432096.9A patent/CN107971851B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201632899U (en) * | 2009-11-27 | 2010-11-17 | 臧珂 | Sand paper grinder |
| CN102179763A (en) * | 2011-02-22 | 2011-09-14 | 智奇铁路设备有限公司 | Central hole polishing device for hollow shaft of motor train unit |
| CN203156488U (en) * | 2013-02-24 | 2013-08-28 | 张文豹 | Split type ergonomic rubber polishing block |
| CN203245745U (en) * | 2013-04-02 | 2013-10-23 | 雷博尔自动化系统（惠州）有限公司 | Polishing head of automatic polisher for precision plastic parts |
| CN104044048A (en) * | 2014-06-20 | 2014-09-17 | 山东电力建设第一工程公司 | Polishing and cleaning tool for inner holes of tube plates of condensers |
| CN204397564U (en) * | 2014-11-30 | 2015-06-17 | 刘畅 | A kind of easy sander |
| CN204504989U (en) * | 2015-01-13 | 2015-07-29 | 山东朗法博粉末涂装科技有限公司 | Simple removable sand paper formula grinding head |
| CN205201263U (en) * | 2015-11-12 | 2016-05-04 | 中船动力有限公司 | Diesel engine deep hole milling tools |
| CN205835061U (en) * | 2016-06-28 | 2016-12-28 | 东莞捷荣技术股份有限公司 | A kind of arc grinding head and polisher thereof |
| CN207900822U (en) * | 2017-12-26 | 2018-09-25 | 苏州贝尔纳德铁路设备有限公司 | A kind of central hole polishing device |
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| Publication number | Publication date |
|---|---|
| CN107971851A (en) | 2018-05-01 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240429 Address after: Room 5001, Building C, No. 288, Qinhuai Avenue, Yongyang Street, Lishui District, Nanjing, Jiangsu 211200 Applicant after: Nanjing Yuetong Toy Trading Co.,Ltd. Country or region after: China Address before: 215104 Nanguandu 6 Yuexi Street, Wuzhong District, Suzhou City, Jiangsu Province Applicant before: SUZHOU BEIER NADE RAILWAY EQUIPMENT CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |
Address after: Room 5001, Building C, No. 288, Qinhuai Avenue, Yongyang Street, Lishui District, Nanjing, Jiangsu 211200 Patentee after: Nanjing Yuetong Intelligent Technology Co.,Ltd. Country or region after: China Address before: Room 5001, Building C, No. 288, Qinhuai Avenue, Yongyang Street, Lishui District, Nanjing, Jiangsu 211200 Patentee before: Nanjing Yuetong Toy Trading Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |