CN107855295B - Machining integral key shaft surface cleaning device - Google Patents
Machining integral key shaft surface cleaning device Download PDFInfo
- Publication number
- CN107855295B CN107855295B CN201711088098.0A CN201711088098A CN107855295B CN 107855295 B CN107855295 B CN 107855295B CN 201711088098 A CN201711088098 A CN 201711088098A CN 107855295 B CN107855295 B CN 107855295B
- Authority
- CN
- China
- Prior art keywords
- cleaning
- spline shaft
- support ring
- connecting ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004140 cleaning Methods 0.000 title claims abstract description 123
- 238000003754 machining Methods 0.000 title claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 238000005498 polishing Methods 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 description 10
- 231100000719 pollutant Toxicity 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- 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
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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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 discloses a device for cleaning the surface of a spline shaft in machining, and discloses a device for cleaning the surface of the spline shaft and the inside of a spline shaft key groove through opening and closing of a cleaning block. The fixed cover of its characterized in that is arranged in at the bottom of clearance sleeve barrel, open on the fixed cover surface has a plurality of recesses, and intercrossing forms network structure, round magnet has been put to fixed cover inboard, the diameter of fixed cover is greater than the telescopic diameter of clearance, clearance pad has been put to clearance sleeve inboard, the clearance pad is rubber layer, sponge layer and dull polish cloth layer from inside to outside in proper order, and clearance sleeve barrel mouth is arranged in to the support ring, the support ring is plum blossom column structure, and the support ring is arranged in directly over the support ring, the go-between is plum blossom column structure, and equals with the support ring size, equidistant opening has a plurality of through-holes on the go-between, and is located respectively on the go-between two adjacent plum blossom petals, and guide bar one end and stopper are connected, and the other end passes through-hole and support ring on the.
Description
Technical Field
The invention discloses a surface cleaning device for a machined spline shaft, relates to a device used for machining and used for cleaning the surface of the spline shaft on mechanical equipment, and belongs to the field of machining. In particular to a device for cleaning the surface of a spline shaft and the inside of a spline shaft key groove through the opening and closing of cleaning blocks.
Background
At present, a spline shaft is commonly used as a transmission part on mechanical equipment, a key groove on the spline shaft is matched with a rotating part sleeved on the shaft, the rotating part can longitudinally slide on the spline shaft while coaxial rotation is realized, when the rotating part on the spline shaft is maintained and replaced or the spline shaft is used for a long time, the spline shaft is often required to be cleaned and maintained so as to ensure the matching precision of the spline shaft and the rotating part, the traditional spline shaft cleaning mode is that the surface of the shaft is firstly polished and cleaned by sand paper and gauze and the like, partial pollutants fall into the key groove in the cleaning process, a cleaning tool is required to be manually cleaned and discharged, a plurality of key grooves are usually arranged on the outer layer of the spline shaft, the efficiency is low through a manual cleaning mode, a great deal of energy of cleaning personnel is wasted, the prior cleaning device is disclosed in the publication No. CN205762746U, drive the clearance brush that regular triangle arranged through the motor and rotate, carry out the outer lane cleaning work of axle, when adopting the device to clear up the spline axle, the rotatory outer lane that only can clear up the spline axle of clearance brush, rotate the in-process, brush hair on the brush is difficult to contact the keyway of integral key shaft or contact inadequately, be difficult to realize the clearance of the interior pollutant of keyway, when clearing up the outer lane, partial pollutant can fall into the keyway, increase the clearance degree of difficulty, the incessant undulant friction of brush hair between keyway and surface, damage to the brush hair is great, and can lead to the fact destruction to the precision of spline axle keyway position, cause the influence to rotating member installation location, it is not good to carry out integral key shaft clearance result of use.
Disclosure of Invention
In order to improve the condition, the invention provides a device for cleaning the surface of a spline shaft and the inside of a spline shaft key groove by opening and closing cleaning blocks.
The invention discloses a device for cleaning the surface of a spline shaft in machining, which is realized by the following steps: the invention relates to a cleaning device for the surface of a machined spline shaft, which consists of a main body device and a cleaning device, wherein the main body device consists of a connecting ring, a spring, a guide rod, a support ring, a cleaning sleeve, a fixing cover and a limiting block, the fixing cover is arranged at the bottom of the cleaning sleeve, the surface of the fixing cover is provided with a plurality of grooves which are mutually crossed to form a net-shaped structure, the diameter of the fixing cover is larger than that of the cleaning sleeve, the inner side of the fixing cover is provided with a circle of magnet, the inner side of the cleaning sleeve is provided with a cleaning pad, the cleaning pad is sequentially provided with a rubber layer, a sponge layer and a frosted cloth layer from inside to outside, the support ring is arranged at the opening of the cleaning sleeve, the support ring is in a plum blossom shape structure, the connecting ring is arranged right above the support ring, the connecting ring is in the plum blossom shape structure and has the same size with the support ring, one end of a guide rod is connected with a limiting block, the other end of the guide rod penetrates through a through hole in a connecting ring to be connected with the supporting ring, a spring sleeve is arranged on the guide rod and is positioned between the supporting ring and the connecting ring, a cleaning device is composed of a polishing ring, a fixing column, a cleaning block, a guide plate, movable plates, fixing lugs, fixing rods, fixing pins, a sliding groove and a supporting block, the polishing ring is arranged on the inner side of the connecting ring, one end of each fixing rod is arranged on the supporting ring at equal intervals, the fixing rods are positioned on the position of the plum blossom petals on the supporting ring and are arranged on the connecting ring at equal intervals and are in one-to-one correspondence with the fixing rods, the fixing columns are positioned on the position of the plum blossom petals on the connecting ring, one end of each fixing column and one end of each fixing rod are respectively provided, the movable plate is provided with a sliding groove, the fixing pin sequentially penetrates through the two mounting holes and the sliding groove, the guide plate is arranged on the movable plate, the guide plate is of an arc-shaped plate-shaped structure and is gradually increased from one end to the other end, the cleaning block is of a diamond plate shape and is divided into two parts from the middle part, the thicknesses of the two parts are different, one part of the cleaning block with large thickness is vertically arranged in the middle part of the lower end of the guide plate, one part of the cleaning block with small thickness extends out from the lower end of the guide plate, the supporting block is arranged on the movable plate, and the supporting block is hinged to the fixing lug on the corresponding fixing column through the fixing pin.
When the spline shaft cleaning device is used, when the surface of a spline shaft is cleaned, the spline shaft is firstly placed into the cleaning sleeve through the fixing cover, the spline shaft is pushed towards the direction of the connecting ring until one end of the spline shaft enters the connecting ring, then the cleaning sleeve is held by a hand, the hand is limited and prevented from slipping by the fixing cover, then the cleaning sleeve is pulled down, the cleaning sleeve drives the support ring to move downwards along the spline shaft, the support ring drives the connecting ring to move downwards along the spline shaft through the guide rods, the cleaning pad on the inner side of the cleaning sleeve cleans the outer side of the spline shaft, the frosted cloth layer on the outermost side of the cleaning pad pre-polishes the oxide layer on the outer side of the spline shaft, the sponge layer in the middle layer of the cleaning pad absorbs oil stains on the surface of the spline shaft, the polishing ring on the inner side of the connecting ring performs secondary polishing on the oxide layer on the surface of the spline shaft, the oxide layer on the, at the moment, the distance between the support ring and the connecting ring is the largest, the cleaning blocks are in an open state, then the cleaning sleeve is pushed reversely, the cleaning sleeve moves upwards along the spline shaft and drives the guide rods to slide along the corresponding through holes in the connecting ring respectively, springs on the guide rods are compressed, at the moment, the distance between the support ring and the connecting ring is gradually reduced, one end of the movable plate deflects downwards, the cleaning blocks are driven to move downwards through the guide plates and are contracted and closed to be clamped into the key grooves on the outer side of the spline shaft gradually, the cleaning blocks move along the key grooves along with the movement of the cleaning sleeve, pollutants in the key grooves are scraped out, and the pollutants are discharged along the corresponding guide plates along with the continuous increase of the scraped pollutants;
the design that a circle of magnet is arranged on the inner side of the fixed cover can adsorb the residual rust slag on the surface of the spline shaft when moving along the spline shaft, so that the spline shaft cleaning effect is improved;
the surface of the fixing cover is provided with a plurality of grooves which are intersected with each other to form a mesh structure, so that the friction force between the fixing cover and the hand can be increased, and the slipping is prevented;
the diameter of the fixed cover is larger than that of the cleaning sleeve, so that the hand can be limited, and the hand is prevented from slipping and falling off the cleaning sleeve when the cleaning sleeve is pulled down;
the cleaning sleeve is characterized in that a cleaning pad is arranged on the inner side of the cleaning sleeve, the cleaning pad is sequentially provided with a rubber layer, a sponge layer and a frosted cloth layer from inside to outside, the frosted cloth layer on the outermost side can polish rust on the outer side of the spline shaft, the sponge layer on the middle layer can suck oil stains and the like on the surface of the spline shaft, and the rubber layer on the innermost layer can enable the cleaning pad to have certain elasticity, so that the cleaning pad is tightly attached to the surface of the spline shaft, and the cleaning effect is improved;
the cleaning block is matched with the cleaning sleeve, the outer surface of the spline shaft and the inner part of the spline groove are cleaned through the structural design, the surface of the spline shaft can be cleaned in one step, the inner part of the spline groove is not required to be cleaned in a specific manner in two steps, and the cleaning efficiency of the spline shaft is greatly improved; the part of the cleaning block with the larger thickness can improve the firm effect of the cleaning block fixed on the guide plate and reduce the probability of the breakage of the cleaning block in the cleaning process, and the part of the cleaning block with the smaller thickness extends out from the end with the lower height of the guide plate, so that the key groove on the outer side of the spline shaft can be cleaned more conveniently;
the purpose of cleaning the surface of the spline shaft on mechanical equipment used in machining is achieved.
Has the beneficial effects.
Firstly, can clear up the pollutant in the keyway.
And secondly, the cleaning efficiency of the spline shaft can be greatly improved.
Thirdly, the cleaning effect of the spline shaft can be effectively improved.
Drawings
FIG. 1 is a perspective view of a surface cleaning device for a machined spline shaft according to the present invention.
Fig. 2 is a perspective view of a guide plate of the spline shaft surface machining device according to the present invention, which shows only the connection relationship between the guide plate and the cleaning block.
In the attached drawings
Wherein the parts are: the grinding device comprises a grinding ring (1), a connecting ring (2), a fixing column (3), a cleaning block (4), a guide plate (5), a movable plate (6), a fixing lug (7), a fixing rod (8), a spring (9), a guide rod (10), a support ring (11), a cleaning sleeve (12), a fixing cover (13), a limiting block (14), a fixing pin (15), a sliding groove (16) and a supporting block (17).
The specific implementation mode is as follows:
the invention relates to a surface cleaning device for a spline shaft machined by a machine, which is realized by putting the spline shaft into a cleaning sleeve (12) through a fixed cover (13) when cleaning the surface of the spline shaft when in use, pushing the spline shaft towards the direction of the connecting ring (2) until one end of the spline shaft enters the connecting ring (2), holding the cleaning sleeve (12) by hand, limiting and anti-skidding the hand by the fixed cover (13), pulling down the cleaning sleeve (12), driving a support ring (11) to move downwards along the spline shaft by the cleaning sleeve (12), driving the connecting ring (2) by the support ring (11) through a plurality of guide rods (10) to move downwards along the spline shaft, cleaning the cleaning pad on the inner side of the cleaning sleeve (12) to clean the outer side of the spline shaft, pre-polishing a frosted cloth layer on the outermost side of the cleaning pad to pre-polish an oxide layer on the outer side of the spline shaft, absorbing oil stains on the surface of the spline shaft by the sponge layer in the middle layer of the cleaning pad, the polishing ring (1) on the inner side of the connecting ring (2) polishes the oxide layer on the surface of the spline shaft for the second time, the oxide layer on the surface of the spline shaft is thoroughly polished off, the surface of the spline shaft is further cleaned, at the moment, the distance between the supporting ring (11) and the connecting ring (2) is the largest, the cleaning blocks (4) are in an open state, then the cleaning sleeve (12) is reversely pushed, the cleaning sleeve (12) moves upwards along the spline shaft and drives the guide rods (10) to slide along the corresponding through holes in the connecting ring (2) respectively, the springs (9) on the guide rods (10) are compressed, at the moment, the distance between the supporting ring (11) and the connecting ring (2) is gradually reduced, one end of the movable plate (6) deflects downwards, the guide plate (5) drives the cleaning blocks (4) to move downwards, the cleaning blocks (4) are contracted and closed and are gradually clamped into the key grooves on the outer side of the spline shaft respectively, along with the movement of the cleaning sleeve (12), the cleaning block (4) moves along the key groove, so that pollutants in the key groove are scraped out, and along with the continuous increase of the scraped pollutants, the pollutants are discharged along the corresponding guide plate (5);
the inner side of the fixed cover (13) is provided with a circle of magnets, so that residual rust slag on the surface of the spline shaft can be adsorbed when the fixed cover moves along the spline shaft, and the spline shaft cleaning effect is improved;
the surface of the fixing cover (13) is provided with a plurality of grooves which are intersected with each other to form a mesh structure, so that the friction force between the fixing cover (13) and the hand can be increased, and the slipping is prevented;
the diameter of the fixed cover (13) is larger than that of the cleaning sleeve (12), so that the hand can be limited, and the hand is prevented from slipping and falling off from the cleaning sleeve (12) when the cleaning sleeve (12) is pulled down;
the cleaning sleeve (12) is internally provided with a cleaning pad, the cleaning pad is sequentially provided with a rubber layer, a sponge layer and a frosted cloth layer from inside to outside, the frosted cloth layer at the outermost side can polish rust at the outer side of the spline shaft, the sponge layer at the middle layer can suck oil stains and the like on the surface of the spline shaft, and the rubber layer at the innermost layer can enable the cleaning pad to have certain elasticity, so that the cleaning pad is tightly attached to the surface of the spline shaft, and the cleaning effect is improved;
the cleaning block (4) is matched with the cleaning sleeve (12), the structural design for cleaning the outer surface of the spline shaft and the inner part of the spline groove can clean the surface of the spline shaft for one time, the special cleaning for the inner part of the spline groove is not needed for two times, and the cleaning efficiency of the spline shaft is greatly improved;
the part of the cleaning block (4) with the larger thickness can improve the firm effect of the cleaning block (4) fixed on the guide plate (5), and reduce the probability of breaking the cleaning block (4) in the cleaning process, and the part of the cleaning block (4) with the smaller thickness extends out from one end of the guide plate (5) with the lower height, so that the key groove on the outer side of the spline shaft can be cleaned more conveniently; the purpose of cleaning the surface of the spline shaft on mechanical equipment used in machining is achieved.
Claims (5)
1. The utility model provides a machining integral key shaft surface cleaning device which characterized by: the diameter of the fixed cover is larger than that of the cleaning sleeve, a cleaning pad is arranged on the inner side of the cleaning sleeve, the support ring is arranged at the opening of the cleaning sleeve and is of a plum-blossom-shaped structure, the connecting ring is arranged right above the support ring, the connecting ring is of a plum-blossom-shaped structure, the inner diameter of the connecting ring is equal to that of the support ring, a plurality of through holes are formed in the connecting ring at equal intervals and are respectively positioned between two adjacent plum petals on the connecting ring, one end of each guide rod is connected with the limiting block, the other end of each guide rod penetrates through the through hole in the connecting ring to be connected with the support ring, the spring is sleeved on the guide rods and positioned between the support ring and the connecting ring, the polishing ring is arranged on the inner side of the connecting ring, one end of each fixing rod is arranged on the support ring at equal intervals, fixed lug has been put respectively to fixed column one end and dead lever one end, fixed lug is U type plate structure, it has two mounting holes to open symmetrically on the fixed lug, the U type inslot on the fixed lug on the dead lever is arranged in to the fly leaf, it has the sliding tray to open on the fly leaf, the dowel runs through two mounting holes and sliding tray in proper order, the guide board is arranged in on the fly leaf, the clearance piece is arranged in on the guide board one end, the one end of clearance piece is the platykurtic, the supporting shoe is arranged in on the fly leaf, and it is articulated mutually with the fixed lug on the corresponding fixed column through.
2. The device for cleaning the surface of a machined spline shaft according to claim 1, wherein the surface of the fixing cover is provided with a plurality of grooves which are intersected with each other to form a net structure.
3. The machined spline shaft surface cleaning device according to claim 1 or 2, wherein a ring of magnets is arranged inside the fixed cover.
4. The device for cleaning the surface of the spline shaft machined according to claim 1, wherein the cleaning pad comprises a rubber layer, a sponge layer and a frosted cloth layer from inside to outside.
5. The spline shaft surface cleaning device for machining according to claim 1, wherein the guide plate has an arc-shaped plate-like structure and gradually increases in height from one end to the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088098.0A CN107855295B (en) | 2017-11-08 | 2017-11-08 | Machining integral key shaft surface cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088098.0A CN107855295B (en) | 2017-11-08 | 2017-11-08 | Machining integral key shaft surface cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107855295A CN107855295A (en) | 2018-03-30 |
| CN107855295B true CN107855295B (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711088098.0A Active CN107855295B (en) | 2017-11-08 | 2017-11-08 | Machining integral key shaft surface cleaning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107855295B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744381A (en) * | 2019-10-30 | 2020-02-04 | 湖州奇奇机电科技有限公司 | Screw connection column polishing mechanism with end cover provided with screw connection column at top |
| CN115502873A (en) * | 2022-11-15 | 2022-12-23 | 晋江熠昕科技有限公司 | Burnishing device of rotatory target drone spline shaft lever processing usefulness |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195575A (en) * | 2002-12-17 | 2004-07-15 | Aisin Aw Co Ltd | Grinding device and grinding method |
| JP2005211884A (en) * | 2004-02-02 | 2005-08-11 | Sumitomo Densetsu Corp | Cleaning machine for steel tower |
| TWI371341B (en) * | 2009-01-23 | 2012-09-01 | ||
| CN203679957U (en) * | 2013-12-30 | 2014-07-02 | 浙江中柴机器有限公司 | Gear deburring device |
| CN105750659A (en) * | 2016-04-22 | 2016-07-13 | 浙江德福精密驱动制造有限公司 | Deburring device for external spline |
| CN106553112A (en) * | 2014-07-27 | 2017-04-05 | 胡妍 | Oil drill rocker surface derusting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1499477E (en) * | 2002-04-13 | 2007-01-31 | Poul Erik Jespersen | Cylindric drum with replaceable grinding elements |
| DE10324317A1 (en) * | 2003-05-27 | 2004-12-16 | Alstom Technology Ltd | Device and method for mechanical utility cleaning |
| CN204769609U (en) * | 2015-06-01 | 2015-11-18 | 内蒙古自治区特种设备检验院 | Safety hook gear degreaser with supplementary regulatory function |
| CN205888894U (en) * | 2016-08-16 | 2017-01-18 | 广东俊泰液压科技有限公司 | Rotor groove burring tool |
-
2017
- 2017-11-08 CN CN201711088098.0A patent/CN107855295B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195575A (en) * | 2002-12-17 | 2004-07-15 | Aisin Aw Co Ltd | Grinding device and grinding method |
| JP2005211884A (en) * | 2004-02-02 | 2005-08-11 | Sumitomo Densetsu Corp | Cleaning machine for steel tower |
| TWI371341B (en) * | 2009-01-23 | 2012-09-01 | ||
| CN203679957U (en) * | 2013-12-30 | 2014-07-02 | 浙江中柴机器有限公司 | Gear deburring device |
| CN106553112A (en) * | 2014-07-27 | 2017-04-05 | 胡妍 | Oil drill rocker surface derusting device |
| CN105750659A (en) * | 2016-04-22 | 2016-07-13 | 浙江德福精密驱动制造有限公司 | Deburring device for external spline |
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| Publication number | Publication date |
|---|---|
| CN107855295A (en) | 2018-03-30 |
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