CN110977638B - A inner wall grinding device for hardware fitting - Google Patents
A inner wall grinding device for hardware fitting Download PDFInfo
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- CN110977638B CN110977638B CN201911160296.2A CN201911160296A CN110977638B CN 110977638 B CN110977638 B CN 110977638B CN 201911160296 A CN201911160296 A CN 201911160296A CN 110977638 B CN110977638 B CN 110977638B
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- roller
- grinding
- polishing
- spring
- installation
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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
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
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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 belongs to the technical field of machining, and particularly relates to an inner wall polishing device for a hardware fitting, which comprises a spring shaft, a polishing roller and a plug connector, wherein the polishing roller and the plug connector are respectively arranged at the head part and the tail part of the spring shaft; through setting up a plurality of installation rollers that are driven by the spring axle, the outside detachable installation of installation roller is polished roller, the spring axle has good bending capacity, and be straight line shape at the unstressed state, the installation roller modularization installation that will have the polishing roller, make the increase of installation roller all fairly simpler with the dismantlement, can be according to the difference of actual work piece, select the quantity and the shape of polishing roller, make whole grinding tool be fit for polishing to this work piece more, it is bigger to compare in current device flexibility, can improve the efficiency of polishing to the work piece inner wall.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to an inner wall polishing device for a hardware fitting.
Background
Hardware is a tool obtained by processing and casting metals such as gold, silver, copper, iron, tin and the like and used for fixing things, processing things, decoration and the like, and is an auxiliary and accessory finished product used in daily life and industrial production.
The bending angle and the thickness of the inner wall of the five pipe fittings are not consistent, for example, the inner diameter of the water inlet of the water faucet is larger than that of the valve, and the diameter of the inner wall of the water inlet of the water faucet is irregular.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an inner wall polishing device for hardware fittings, which has the characteristics of strong adaptability to the inner wall of a hardware pipe fitting and high polishing efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: an inner wall polishing device for hardware fittings comprises a spring shaft, and a polishing roller and a plug connector which are respectively arranged at the head part and the tail part of the spring shaft, wherein the spring shaft comprises a connecting shaft and an extending shaft which are mutually connected;
the installation roller includes first calorie of roller and the second card roller of mutual block, the block groove has all been seted up to the one end of the mutual block of first calorie of roller and second card roller, just the mounting groove has all been seted up to the other end of first calorie of roller and second card roller, the connecting axle with the link of installation roller is equipped with the spring fixed block, the connecting axle winding is fixed on the spring fixed block, the spring fixed block install extremely in the mounting groove, the internally mounted in block groove has locking bolt, locking bolt runs through first calorie of roller and/or second card roller with the spring fixed block spiro union is fixed, first calorie of roller is kept away from the one end of connecting axle be equipped with the interior camber board of second card roller block, first calorie of roller with the second card roller passes through positioning bolt axle spiro union fixed.
Preferably, the outer wall of the second clamping roller and the clamping grooves form an outer arc plate, the outer arc plate is sleeved outside the inner arc plate, the outer arc plate and the outer wall of the inner arc plate are provided with through positioning screw holes, and the positioning bolts are installed in the positioning screw holes in a threaded mode.
Preferably, the outer wall of the spring fixing block is provided with a spiral groove, and the connecting shaft is sleeved in the spiral groove so as to be wound and fixed with the spring fixing block.
Preferably, the spring fixing block is made of plastic, rubber or wood materials.
Preferably, screw holes are formed in the outer side walls of the first clamping roller and the second clamping roller, and screws used for mounting the grinding roller are screwed in the screw holes.
Preferably, the polishing roller comprises a conical polishing roller, an arc-shaped polishing roller and a cylindrical polishing roller, and the conical polishing roller, the arc-shaped polishing roller and the cylindrical polishing roller are fixedly connected with the mounting roller in a threaded manner.
Preferably, the number of the grinding rollers is three, the grinding rollers comprise one conical grinding roller and two cylindrical grinding rollers, and the conical grinding roller and the cylindrical grinding rollers are sequentially arranged along the direction from the end of the spring shaft to the plug.
Preferably, the number of the grinding rollers is three, the grinding rollers comprise one arc-shaped grinding roller and two cylindrical grinding rollers, and the arc-shaped grinding rollers and the cylindrical grinding rollers are sequentially arranged along the direction from the end of the spring shaft to the plug.
Preferably, the grinding roller consists of a brush hair sleeve and brush hair, the brush hair sleeve is sleeved on the outer wall of the mounting roller, countersunk holes for mounting screws are formed in the brush hair sleeve, the brush hair is spirally, crosswise or parallelly fixed on the outer side wall of the brush hair sleeve, and the brush hair is steel hair.
Preferably, the spiral direction of the spring shaft is the same as the rotation direction of the grinding roller.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the mounting rollers driven by the spring shafts are arranged, the polishing rollers are detachably mounted outside the mounting rollers, the spring shafts have good bending capacity and are linear in an unstressed state, the mounting rollers with the polishing rollers are mounted in a modular manner, so that the mounting rollers are simple to increase and dismount, the number and the shape of the polishing rollers can be selected according to different actual workpieces, the whole polishing tool is more suitable for polishing the workpieces, and compared with the existing device, the device has higher flexibility, the efficiency of polishing the inner walls of the workpieces can be improved, and the polishing speed is increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the mounting roll of the present invention;
FIG. 3 is a schematic view of a disassembled structure of the installation roller of the present invention;
FIG. 4 is a schematic view of the construction of the mounting roller and spring shaft of the present invention;
FIG. 5 is a schematic view of a tapered grinding roller according to the present invention;
FIG. 6 is a schematic view of the structure of the arcuate grinding roller of the present invention.
In the figure: 1. grinding a roller; 1a, a conical grinding roller; 1b, arc-shaped grinding rollers; 1c, a cylindrical grinding roller; 11. a bristle sleeve; 12. brushing; 2. mounting a roller; 201. mounting grooves; 202. a clamping groove; 203. a screw hole; 21. a first chuck roller; 211. an inner arc plate; 22. a second chuck roller; 23. positioning the bolt; 24. a spring fixing block; 25. locking the bolt; 3. a spring shaft; 31. a connecting shaft; 32. an extension shaft; 4. a plug-in connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: an inner wall polishing device for hardware accessories comprises a spring shaft 3, and a polishing roller 1 and a plug 4 which are respectively arranged at the head and the tail of the spring shaft 3, wherein the spring shaft 3 comprises a connecting shaft 31 and an extension shaft 32 which are mutually connected, one end of the extension shaft 32 is fixedly connected with the plug 4, the plug 4 is fixedly connected with the output end of an external power device, the other end of the extension shaft 32 is fixedly connected with more than one connecting shaft 31, the end part of the connecting shaft 31 is fixedly connected with an installation roller 2, and the polishing roller 1 is sleeved outside the installation roller 2 and is fixedly connected with the installation roller 2;
the installation roller 2 includes first calorie of roller 21 and the second calorie of roller 22 of mutual block, the one end of the mutual block of first calorie of roller 21 and second calorie of roller 22 has all been seted up and has been blocked groove 202, and the mounting groove 201 has all been seted up to the other end of first calorie of roller 21 and second calorie of roller 22, connecting axle 31 is equipped with spring fixed block 24 with the link of installation roller 2, connecting axle 31 winding is fixed on spring fixed block 24, spring fixed block 24 is installed to the mounting groove 201 in, the internally mounted of block groove 202 has locking bolt 25, locking bolt 25 runs through first calorie of roller 21 and/or second calorie of roller 22 and is fixed with the 24 spiro union of spring fixed block, the one end that connecting axle 31 was kept away from to first calorie of roller 21 is equipped with the interior arc board 211 with second calorie of roller 22 block, first calorie of roller 21 passes through positioning bolt spring shaft 3 spiro union with second calorie of roller 22 to.
In the embodiment, the spring grinding tool comprises a spring shaft 3, a grinding roller 1 and a plug-in connector 4 which are respectively arranged at the head part and the tail part of the spring shaft 3, wherein the plug-in connector 4 is connected with a hand drill, a motor or a rotary driving device, the spiral direction of the spring shaft 3 is required to be the same as the rotating direction of the grinding roller 1, the spring shaft 3 is prevented from being deformed under the condition of reverse rotation and blocking, different grinding heads can be selectively arranged by arranging a plurality of mounting rollers 2 driven by the spring shaft 3, the grinding roller 1 is detachably arranged outside the mounting rollers 2, the spring shaft 3 has good bending capability and is linear in an unstressed state, the grinding roller 1 can be used for selecting and arranging different grinding heads according to the diameter and the bending degree of the inner wall of a workpiece to be ground, the whole grinding tool is more suitable for grinding the workpiece, the connection part of the spring shaft 3 and the mounting rollers 2 is fixed through bolts, the connection stability, the condition that can not take place to skid guarantees the effect of polishing, will have the installation roller 2 modularization installation of polishing roller 1, makes the increase of installation roller 2 and dismantles all fairly simplely, in the use, can be according to the difference of actual work piece, selects the quantity and the shape of polishing roller 1, and it is bigger to compare in current device flexibility, can improve the efficiency of polishing to the work piece inner wall for the speed of polishing.
Specifically, form outer arc board between the outer wall of second calorie of roller 22 and the block groove 202, outer arc board cover is established in the outside of inner arc board 211, the location screw that link up has all been seted up on outer arc board and the outer wall of inner arc board 211, positioning bolt 23 spiro union is installed in the location screw, through outer arc board and the inner arc board 211 that sets up mutual block between second calorie of roller 22 and block groove 202, when the installation, with second calorie of roller 22 and the mutual block of block groove 202, then install positioning bolt 23, fix first calorie of roller 21 and second card roller 22, accomplish the modularization installation (like figure 2 and figure 3), make the increase and the dismantlement of installation roller 2 all fairly simpler.
Specifically, the outer wall of the spring fixing block 24 is provided with a spiral groove, the connecting shaft 31 is sleeved in the spiral groove so that the connecting shaft 31 is wound and fixed with the spring fixing block 24, the spring fixing block 24 is made of plastic, rubber or wood, one end of the connecting shaft 31 is wound and fixed on the spiral groove of the spring fixing block 24, and the connecting shaft 31 is tightly connected with the spring fixing block 24 by utilizing the self-tightening performance of the spring.
Specifically, screw 203 has all been seted up on the lateral wall of first calorie of roller 21, second calorie of roller 22, the spiro union has the screw that is used for installing grinding roller 1 in the screw 203, grinding roller 1 includes toper grinding roller 1a, arc grinding roller 1b and cylindric grinding roller 1c, toper grinding roller 1a, arc grinding roller 1b and cylindric grinding roller 1c all are fixed with installation roller 2 spiro union, will adopt the mode of fix with screw to be connected between grinding roller 1 and the installation roller 2, the dismouting to grinding roller 1 is convenient, can be according to the difference of actual work piece, select the quantity and the shape of grinding roller 1, it is bigger to compare in current device flexibility.
Specifically, the grinding roller 1 comprises brush hair sleeve 11 and brush hair 12, the outer wall at installation roller 2 is established to brush hair sleeve 11 cover, and set up the counter sink that is used for the mounting screw on the brush hair sleeve 11, brush hair 12 is the heliciform, cross form or parallel fixation are on brush hair sleeve 11's lateral wall, brush hair 12 is the steel wool, the brush hair 12 of steel material has stronger rigidity and toughness, increase the dynamics of polishing to the work piece inner wall, and the brush hair 12 of heliciform or alternately form rotates behind the work piece inner wall, it is effectual to polish, it is few to leave the scum volume.
Example 2
The difference with embodiment 1 is that, the number of the grinding roller 1 is three, and includes a toper grinding roller 1a and two cylindric grinding rollers 1c, and toper grinding roller 1a and cylindric grinding roller 1c are arranged along the end of spring shaft 3 to the direction of bayonet joint 4 in proper order, install toper grinding roller 1a at the tip, and in the in-process of polishing the work piece inner wall, contact the inner wall at first by the less tip of toper grinding roller 1a, then inwards extend gradually, are suitable for polishing conical aperture.
Example 3
The difference with embodiment 1 is that, it is three to polish grinding roller 1 quantity, and including an arc and polish grinding roller 1b and two cylindric grinding rollers 1c, arc and polish grinding roller 1b and cylindric grinding roller 1c and arrange in proper order along the end of spring shaft 3 to the direction of bayonet joint 4, install arc and polish grinding roller 1b at the tip, in-process polishing the work piece inner wall, by arc polish the less tip of grinding roller 1b at first contact inner wall, curved outer fringe department polishes with the inner wall contact, the contact surface is big, the inner wall is polished more smoothly.
The working principle and the using process of the invention are as follows: the plug 4 is fixedly connected with the output end of a hand drill, the spiral direction of the spring shaft 3 is required to be the same as the rotating direction of the polishing roller 1, the polishing roller 1 extends into the pipe diameter of a workpiece, the spring shaft 3 has good bending capacity and is linear in an unstressed state, different polishing heads can be selectively installed on the polishing roller 1 according to the diameter and the bending degree of the inner wall of the workpiece to be polished, the whole polishing tool is more suitable for polishing the workpiece, the connection part of the spring shaft 3 and the installation roller 2 is fixed through a bolt, the connection stability is ensured, the condition of slipping is avoided in the rotating polishing process, the polishing effect is ensured, the installation roller 2 with the polishing roller 1 is installed in a modularized mode, the installation roller 2 is simple to increase and detach, in the using process, the quantity and the shape of the polishing roller 1 can be selected according to different actual workpieces, compare in current device flexibility bigger, can improve the efficiency of polishing the work piece inner wall for the speed of polishing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides an inner wall grinding device for hardware fitting which characterized in that: the spring grinding device comprises a spring shaft (3), and a grinding roller (1) and a plug-in connector (4) which are respectively installed at the head and the tail of the spring shaft (3), wherein the spring shaft (3) comprises a connecting shaft (31) and an extending shaft (32) which are mutually connected, one end of the extending shaft (32) is fixedly connected with the plug-in connector (4), the plug-in connector (4) is fixedly connected with the output end of an external power device, the other end of the extending shaft (32) is fixedly connected with more than one connecting shaft (31), the end part of the connecting shaft (31) is fixedly connected with an installation roller (2), and the grinding roller (1) is sleeved outside the installation roller (2) and is fixedly connected with the installation roller (2);
installation roller (2) are including first calorie of roller (21) and second card roller (22) of mutual block, card groove (202) have all been seted up to the one end of first calorie of roller (21) and second card roller (22) mutual block, just mounting groove (201) have all been seted up to the other end of first calorie of roller (21) and second card roller (22), connecting axle (31) with the link of installation roller (2) is equipped with spring fixed block (24), connecting axle (31) winding is fixed on spring fixed block (24), spring fixed block (24) install extremely in mounting groove (201), the internally mounted of card groove (202) has locking bolt (25), locking bolt (25) run through first calorie of roller (21) and/or second card roller (22) with spring fixed block (24) spiro union is fixed, first calorie of roller (21) is kept away from the one end of first calorie of roller (31) be equipped with the inner arc board connecting axle of second card roller (22) block (211) The first clamping roller (21) and the second clamping roller (22) are fixed in a threaded mode through a positioning bolt (23);
an outer arc plate is formed between the outer wall of the second clamping roller (22) and the clamping groove (202), the outer arc plate is sleeved outside the inner arc plate (211), through positioning screw holes are formed in the outer wall of the outer arc plate and the outer wall of the inner arc plate (211), and the positioning bolts (23) are installed in the positioning screw holes in a threaded mode;
a spiral groove is formed in the outer wall of the spring fixing block (24), and the connecting shaft (31) is sleeved in the spiral groove so that the connecting shaft (31) and the spring fixing block (24) are wound and fixed;
the spring fixing block (24) is made of plastic, rubber or wood;
screw holes (203) are formed in the outer side walls of the first clamping roller (21) and the second clamping roller (22), and screws for mounting the grinding roller (1) are screwed in the screw holes (203);
the polishing roller (1) comprises a conical polishing roller (1 a), an arc-shaped polishing roller (1 b) and a cylindrical polishing roller (1 c), and the conical polishing roller (1 a), the arc-shaped polishing roller (1 b) and the cylindrical polishing roller (1 c) are fixedly connected with the mounting roller (2) in a threaded manner;
the number of the grinding rollers (1) is three, the grinding rollers comprise one conical grinding roller (1 a) and two cylindrical grinding rollers (1 c), and the conical grinding roller (1 a) and the cylindrical grinding rollers (1 c) are sequentially arranged along the direction from the end of the spring shaft (3) to the plug connector (4);
the number of the grinding rollers (1) is three, the grinding rollers comprise one arc-shaped grinding roller (1 b) and two cylindrical grinding rollers (1 c), and the arc-shaped grinding roller (1 b) and the cylindrical grinding rollers (1 c) are sequentially arranged along the direction from the end of the spring shaft (3) to the plug connector (4);
the grinding roller (1) consists of a brush hair sleeve (11) and brush hair (12), the brush hair sleeve (11) is sleeved on the outer wall of the installation roller (2), a countersunk hole for installing a screw is formed in the brush hair sleeve (11), the brush hair (12) is fixed on the outer side wall of the brush hair sleeve (11) in a spiral shape, a crossed shape or a parallel shape, and the brush hair (12) is steel hair;
the spiral direction of the spring shaft (3) is the same as the rotation direction of the grinding roller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160296.2A CN110977638B (en) | 2019-11-23 | 2019-11-23 | A inner wall grinding device for hardware fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160296.2A CN110977638B (en) | 2019-11-23 | 2019-11-23 | A inner wall grinding device for hardware fitting |
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| Publication Number | Publication Date |
|---|---|
| CN110977638A CN110977638A (en) | 2020-04-10 |
| CN110977638B true CN110977638B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911160296.2A Active CN110977638B (en) | 2019-11-23 | 2019-11-23 | A inner wall grinding device for hardware fitting |
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| Country | Link |
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| CN (1) | CN110977638B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546203B (en) * | 2020-06-07 | 2021-10-22 | 嘉兴市玖玛兰科技有限公司 | High-adaptability sander |
| CN114714098A (en) * | 2022-04-11 | 2022-07-08 | 沧州科威电子有限责任公司 | Machining device and processing method for inner cavity of bent pipe |
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| CN101648358A (en) * | 2009-09-01 | 2010-02-17 | 吉林大学 | Curved surface finishing processing device |
| CN202846279U (en) * | 2012-09-03 | 2013-04-03 | 舒能（苏州）工业技术有限公司 | Elbow pipe grinding tool |
| CN103659497A (en) * | 2012-09-03 | 2014-03-26 | 舒能（苏州）工业技术有限公司 | Tool for grinding S-shaped bent pipe |
| CN104325382A (en) * | 2014-10-30 | 2015-02-04 | 浙江久德不锈钢型材有限公司 | Pipe internal surface finishing device |
| WO2015077975A1 (en) * | 2013-11-29 | 2015-06-04 | 铁鎯电动工具有限公司 | Inner circle double-wheel polishing machine |
| CN106737076A (en) * | 2016-12-28 | 2017-05-31 | 渤海造船厂集团有限公司 | A kind of small-bore stainless steel elbow endoporus polishing process |
| CN208601287U (en) * | 2018-07-20 | 2019-03-15 | 佛山市和阳精密金属制品有限公司 | A kind of bend pipe inner cavity grinding apparatus |
| CN209223717U (en) * | 2018-12-19 | 2019-08-09 | 临沂三威精密铸造有限公司 | Grinding device is used in a kind of processing of stainless steel pipe elbow |
-
2019
- 2019-11-23 CN CN201911160296.2A patent/CN110977638B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648358A (en) * | 2009-09-01 | 2010-02-17 | 吉林大学 | Curved surface finishing processing device |
| CN202846279U (en) * | 2012-09-03 | 2013-04-03 | 舒能（苏州）工业技术有限公司 | Elbow pipe grinding tool |
| CN103659497A (en) * | 2012-09-03 | 2014-03-26 | 舒能（苏州）工业技术有限公司 | Tool for grinding S-shaped bent pipe |
| WO2015077975A1 (en) * | 2013-11-29 | 2015-06-04 | 铁鎯电动工具有限公司 | Inner circle double-wheel polishing machine |
| CN104325382A (en) * | 2014-10-30 | 2015-02-04 | 浙江久德不锈钢型材有限公司 | Pipe internal surface finishing device |
| CN106737076A (en) * | 2016-12-28 | 2017-05-31 | 渤海造船厂集团有限公司 | A kind of small-bore stainless steel elbow endoporus polishing process |
| CN208601287U (en) * | 2018-07-20 | 2019-03-15 | 佛山市和阳精密金属制品有限公司 | A kind of bend pipe inner cavity grinding apparatus |
| CN209223717U (en) * | 2018-12-19 | 2019-08-09 | 临沂三威精密铸造有限公司 | Grinding device is used in a kind of processing of stainless steel pipe elbow |
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| CN110977638A (en) | 2020-04-10 |
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Address after: 2-3 / F, building 3, 18 liangchuang Road, ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province, 314100 Patentee after: Jiaxing Zhixin Precision Parts Co.,Ltd. Address before: 2-3 / F, building 3, 18 liangchuang Road, ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province, 314100 Patentee before: Jiaxing Zhixin precision parts manufacturing Co.,Ltd. |