阅读说明：本技术 一种差速器壳体双面抛光装置 (Double-sided polishing device for differential shell ) 是由 王亚飞 于 2021-09-26 设计创作，主要内容包括：本发明涉及差速器壳体加工技术领域,公开了一种差速器壳体双面抛光装置,包括底座,底座的中心布置有能够在底座上自由旋转的圆锥状抛光仓,底座的上端布置有驱动箱,驱动箱内布置有能够驱动抛光仓旋转的第一驱动机构；抛光仓的正上方布置有抛光盖板,驱动箱内还布置有第二驱动机构,抛光盖板的下端布置有能够对差速器的内壁进行固定的夹具一和能够对差速器外壁进行固定的夹具二,夹具一与夹具二之间还布置有能够辅助抛光的搅拌机构,封闭板的底部还布置有雾化喷头,抛光仓的正下方布置有接料仓。本发明能够对差速器壳体的内外表面进行抛光,抛光效率高、效果好,且极大的减少对车间环境的污染,以及对人体健康的危害。(The invention relates to the technical field of differential shell machining, and discloses a double-sided polishing device for a differential shell, which comprises a base, wherein a conical polishing bin capable of freely rotating on the base is arranged at the center of the base, a driving box is arranged at the upper end of the base, and a first driving mechanism capable of driving the polishing bin to rotate is arranged in the driving box; polishing apron has been arranged directly over the polishing storehouse, the second actuating mechanism has still been arranged in the drive case, the lower extreme of polishing apron is arranged and is carried out anchor clamps one that fixes and can carry out anchor clamps two that fix to the differential mechanism outer wall to the inner wall of differential mechanism, has still arranged the rabbling mechanism that can assist the polishing between anchor clamps one and the anchor clamps two, and the atomizer has still been arranged to the bottom of closing plate, has arranged under the polishing storehouse and has connect the feed bin. The polishing device can polish the inner surface and the outer surface of the differential shell, has high polishing efficiency and good effect, and greatly reduces the pollution to workshop environment and the harm to human health.)

1. A double-sided polishing device for a differential shell comprises a base and supporting legs capable of supporting the base, and is characterized in that a conical polishing bin capable of freely rotating on the base is arranged in the center of the base, an opening is formed in the top of the polishing bin, a driving box is arranged at the upper end of the base, and a first driving mechanism capable of driving the polishing bin to rotate is arranged in the driving box;

a polishing cover plate capable of sealing the opening is arranged right above the polishing bin, two telescopic columns for guiding the polishing cover plate to longitudinally move are symmetrically arranged above the driving box, and a second driving mechanism capable of controlling the polishing cover plate to longitudinally reciprocate is further arranged in the driving box;

the lower end of the polishing cover plate is provided with a closing plate matched with the inner diameter of the opening, and the bottom of the closing plate is respectively provided with a first clamp capable of fixing the inner wall of the differential and a second clamp capable of fixing the outer wall of the differential;

a stirring mechanism capable of assisting polishing is arranged between the first clamp and the second clamp, an atomizing spray head is arranged at the bottom of the sealing plate, and the atomizing spray heads are communicated with a tap water pipe through water pipes;

and a material receiving bin for collecting waste liquid is arranged under the polishing bin.

2. The double-sided polishing device for a differential case according to claim 1, wherein: the inner wall in polishing storehouse has arranged the spiral chamber that can guide polishing sand rebound, the bottom of the storehouse in polishing storehouse has arranged the sieve mesh that can screen out waste water and grinding waste residue.

3. The double-sided polishing device for a differential case according to claim 1, wherein: the first driving mechanism comprises a first motor arranged in a driving box, a gear ring arranged on the outer wall of the polishing bin and a gear meshed with the gear ring, the gear is coaxially and fixedly connected with an output shaft of the first motor, and the gear ring is fixedly connected with the polishing bin.

4. The double-sided polishing device for a differential case according to claim 1, wherein: the second driving mechanism comprises a second motor arranged in the driving box, a threaded rod coaxially and fixedly connected with the output end of the second motor, and a threaded hole arranged on the polishing cover plate and coaxially arranged with the threaded rod, and the threaded hole is in threaded connection with the threaded rod.

5. The double-sided polishing device for a differential case according to claim 1, wherein: the first fixture comprises a first fixing block capable of wrapping a differential shell, the shape of an inner cavity of the first fixing block is matched with that of the differential shell, and an electromagnet is further arranged on the inner wall of the first fixing block.

6. The double-sided polishing device for a differential case according to claim 5, wherein: the second fixture comprises a second fixing block which can be inserted into an inner cavity of the differential, the shape of the second fixing block is matched with that of the inner cavity of the differential, and a second electromagnet which is consistent with the first electromagnet in structure is further arranged on the inner wall of the second fixing block.

7. The double-sided polishing device for a differential case according to claim 6, wherein: the stirring mechanism comprises a third motor arranged on the polishing cover plate and a stirring paddle arranged between the first clamp and the second clamp, and the output end of the third motor is fixedly connected with the stirring paddle in a coaxial mode through a rotating shaft.

Technical Field

The invention relates to the technical field of differential shell machining, in particular to a double-side polishing device for a differential shell.

Background

The differential is a very important component of an electric automobile, can enable left and right or front and rear driving wheels to rotate at different rotating speeds, mainly comprises a left half axle gear, a right half axle gear, two planetary gears and a gear carrier, and has the function of enabling left and right wheels to roll at different rotating speeds when the automobile turns or runs on an uneven road surface, namely ensuring that the left and right wheels are driven to perform pure rolling motion at two sides, and the differential is arranged for adjusting the rotating speed difference of the left and right wheels, so the differential is a part with higher precision requirement.

The polishing device is required to polish the differential shell, and at present, some polishing devices for polishing the differential shell are also available in the market, such as a differential shell inner and outer polishing device with Chinese patent publication No. CN109531396A, which is used for polishing the differential shell and comprises a box body filled with polishing sand, a driving mechanism and a clamping mechanism, wherein the driving mechanism comprises a driving shaft transversely pivoted on the box body and a motor I connected with the driving shaft, the differential shell can be sleeved on the driving shaft, the clamping mechanism can clamp one end of the differential shell far away from the driving shaft, and a plurality of stirring mechanisms capable of stirring the polishing sand upwards are arranged at the bottom of an inner cavity of the box body. The main principle is that the stirring mechanism is arranged at the bottom of the box body, polishing sand accumulated at the bottom can be upwards stirred in the polishing process, and the stirred polishing sand overflows the differential case and enters the differential case, so that the inside and the outside of the differential case can be polished.

However, the polishing efficiency and quality of the polishing device are not high, firstly, the polishing device mainly drives the differential mechanism to rotate by the driving mechanism and then enables polishing sand to flow by the stirring mechanism, so that the housing of the differential mechanism is polished, but due to the gravity, the polishing sand always moves downwards, always deposits downwards and has poor fluidity, and therefore, the bottom of the polishing device is provided with the air blowing mechanism, although the problem that the polishing sand has poor fluidity is solved, the polishing device continuously blows air into the polishing chamber, the polishing chamber cannot be sealed necessarily, an exhaust end is needed for air circulation, the polishing device can grind the surface of the housing off a large amount of dust, the dust is discharged along with the air circulation, the workshop environment is polluted, and the harm is easily caused to the respiratory system of a human body;

secondly, because the differential case is transversely arranged, the contact frequency of the outer surface of the differential case and the polishing sand is far greater than the contact frequency of the inner surface of the differential case and the polishing sand, so that the polishing time needs to be prolonged and the polishing efficiency needs to be reduced when the polishing of the outer surface of the differential case is finished and the polishing of the inner surface of the differential case is not finished; the differential is directly sleeved on the driving shaft, the clamping mechanism is arranged at the large opening end of the differential, the differential is placed in a space between the clamping mechanism and the driving shaft, the differential shell is fixed by the clamping mechanism and can be certainly contacted with the differential shell, the contact surface is shielded by the clamping mechanism, and polishing sand cannot polish the differential shell, so that the polishing quality is not good.

Disclosure of Invention

The invention provides a double-side polishing device for a differential shell, which can polish the inner surface and the outer surface of the differential shell, has high polishing efficiency and good polishing effect, greatly reduces the influence on the workshop environment, and simultaneously reduces the harm to the human health.

A double-side polishing device for a differential shell comprises a base and supporting legs capable of supporting the base, wherein a conical polishing bin capable of freely rotating on the base is arranged in the center of the base, an opening is formed in the top of the polishing bin, a driving box is arranged at the upper end of the base, and a first driving mechanism capable of driving the polishing bin to rotate is arranged in the driving box;

a polishing cover plate capable of sealing the opening is arranged right above the polishing bin, two telescopic columns for guiding the polishing cover plate to longitudinally move are symmetrically arranged above the driving box, and a second driving mechanism capable of controlling the polishing cover plate to longitudinally reciprocate is further arranged in the driving box;

the lower end of the polishing cover plate is provided with a closing plate matched with the inner diameter of the opening, and the bottom of the closing plate is respectively provided with a first clamp capable of fixing the inner wall of the differential and a second clamp capable of fixing the outer wall of the differential;

a stirring mechanism capable of assisting polishing is arranged between the first clamp and the second clamp, an atomizing spray head is arranged at the bottom of the sealing plate, and the atomizing spray heads are communicated with a tap water pipe through water pipes;

and a material receiving bin for collecting waste liquid is arranged under the polishing bin.

Preferably, the inner wall of the polishing bin is provided with a spiral cavity capable of guiding polishing sand to move upwards, and the bin bottom of the polishing bin is provided with a sieve mesh capable of screening waste water and grinding waste residues.

Preferably, the first driving mechanism comprises a first motor arranged in the driving box, a gear ring arranged on the outer wall of the polishing bin and a gear meshed with the gear ring, the gear is coaxially and fixedly connected with an output shaft of the first motor, and the gear ring is fixedly connected with the polishing bin.

Preferably, the second driving mechanism comprises a second motor arranged in the driving box, a threaded rod coaxially and fixedly connected with the output end of the second motor, and a threaded hole arranged on the polishing cover plate and coaxially arranged with the threaded rod, wherein the threaded hole is in threaded connection with the threaded rod.

Preferably, the first clamp comprises a first fixing block capable of wrapping the differential shell, the shape of an inner cavity of the first fixing block is matched with that of the differential shell, and an electromagnet I is further arranged on the inner wall of the first fixing block.

Preferably, the second fixture comprises a second fixing block capable of being inserted into the inner cavity of the differential, the shape of the second fixing block is matched with that of the inner cavity of the differential, and a second electromagnet consistent with the first electromagnet in structure is further arranged on the inner wall of the second fixing block.

Preferably, the stirring mechanism comprises a third motor arranged on the polishing cover plate and a stirring paddle arranged between the first clamp and the second clamp, and the output end of the third motor is coaxially and fixedly connected with the stirring paddle through a rotating shaft.

Compared with the prior art, the invention has the beneficial effects that:

(1) through designing into the polishing storehouse coniform structure, make it can gush to the bulkhead because centrifugal reason polishing sand when rotatory, along bulkhead rebound to assemble the upper end in polishing storehouse, thereby make polishing sand can polish differential mechanism casing better.

(2) Through arranging the polishing storehouse into revolution mechanic and rotatory through a actuating mechanism drive, cooperate inside rabbling mechanism, it is more active to make polishing sand flow each other, improve the frequency with differential mechanism casing contact, also replace traditional pneumatics to drive polishing sand flow when better faster carrying out the polishing to the casing surface, through arranging the shower nozzle, also restrain the dust raise dust when cooling down polishing sand, reduce the damage of dust to workshop environment and to the harm of human body.

(3) The inner cavity surface and the outer surface of the differential shell are clamped by arranging the first clamp and the second clamp respectively, so that the outer surface of one differential and the inner cavity surface of the other differential are polished synchronously in one-step processing, the polishing efficiency is improved, and when polishing is carried out, the polishing surface is not blocked by the clamps, and the polishing quality is improved.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the drive housing of FIG. 2 with the upper housing removed;

FIG. 4 is a third schematic structural view of the present invention;

FIG. 5 is a schematic view of the polishing cover plate according to the present invention.

Description of reference numerals:

1-base, 2-supporting legs, 3-polishing bin, 4-opening, 5-driving box, 6-polishing cover plate, 7-telescopic column, 8-sealing plate, 9-atomizing nozzle, 10-material receiving bin, 11-spiral cavity, 12-sieve pore, 13-first motor, 14-gear ring, 15-gear, 16-second motor, 17-threaded rod, 1701-limiting plate, 18-threaded hole, 19-first fixed block, 20-first electromagnet, 21-second fixed block, 22-second electromagnet, 23-third motor, 24-stirring paddle and 25-foot control switch.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

As shown in fig. 1-5, a double-sided polishing device for a differential case, which comprises a base 1 and supporting legs 2 capable of supporting the base, wherein a conical polishing bin 3 capable of freely rotating on the base 1 is arranged at the center of the base 1, a bearing is arranged between the polishing bin 3 and the base 1, the conical structure enables polishing sand to flow towards the bin wall due to centrifugal reasons when rotating, the polishing sand moves upwards along the bin wall and converges at the upper end of the polishing bin 3, so that the polishing sand can polish the differential case better, particularly, a spiral cavity 11 capable of guiding the polishing sand to move upwards is arranged on the inner wall of the polishing bin 3, the polishing sand moves upwards when the polishing bin 3 rotates, and the polishing efficiency of the differential case is further improved.

An opening 4 is arranged at the top of the polishing bin 3, a driving box 5 is arranged at the upper end of the base 1, a first driving mechanism capable of driving the polishing bin 3 to rotate is arranged in the driving box 5, specifically, the first driving mechanism comprises a first motor 13 arranged in the driving box 5, a gear ring 14 arranged on the outer wall of the polishing bin 3 and a gear 15 meshed with the gear ring 14, the gear 15 is coaxially and fixedly connected with an output shaft of the first motor 13, and the gear ring 14 is fixedly connected with the polishing bin 3; thereby first motor 13 drives the rotatory drive ring gear 14 of gear 15 and rotates, polishes storehouse 3 rotatory on base 1 under the drive of ring gear 14, and the rotatory inside polishing sand that makes of polishing storehouse 3 flows, replaces traditional simple dependence inside stirring drive polishing sand and flows, can further improve polishing efficiency.

A polishing cover plate 6 capable of sealing the opening 4 is arranged right above the polishing bin 3, two telescopic columns 7 for guiding the polishing cover plate 6 to longitudinally move are symmetrically arranged above the driving box 5, and a second driving mechanism capable of controlling the polishing cover plate 6 to longitudinally reciprocate is further arranged in the driving box 5; specifically, the second driving mechanism includes a second motor 16 disposed in the driving box 5, a threaded rod 17 coaxially and fixedly connected to an output end of the second motor 16, and a threaded hole 18 disposed on the polishing cover plate 6 coaxially with the threaded rod 17, the threaded hole 18 being in threaded connection with the threaded rod 17, a limit plate 1701 for preventing the threaded hole 18 from being disengaged from the threaded rod 17 by being excessively raised is further disposed at an end of the threaded rod 17 remote from the second motor 16, the second motor 16 can rotate the threaded rod 17, the threaded rod 17 is fitted into the threaded hole 18, and when the threaded rod 17 is rotated, because the polishing cover plate 6 can only move longitudinally and can not move transversely under the guidance of the two telescopic columns 7, therefore, when the threaded rod 17 rotates forwards and backwards, the polishing cover plate 6 can only move vertically up and down, the upward movement is used for feeding or discharging, the downward movement is used for plugging the opening 4, and the polishing bin 3 is sealed for polishing operation.

A sealing plate 8 matched with the inner diameter of the opening 4 is arranged at the lower end of the polishing cover plate 6, and a first clamp capable of fixing the inner wall of the differential and a second clamp capable of fixing the outer wall of the differential are respectively arranged at the bottom of the sealing plate 8; specifically, the first clamp comprises a first fixing block 19 capable of wrapping the differential shell, the shape of the inner cavity of the first fixing block 19 is matched with that of the differential shell, and an electromagnet 20 is further arranged on the inner wall of the first fixing block 19. Specifically, the second fixture comprises a second fixing block 21 capable of being inserted into the inner cavity of the differential, the shape of the second fixing block 21 is matched with that of the inner cavity of the differential, a second electromagnet 22 with the same structure as the first electromagnet 20 is further arranged on the inner wall of the second fixing block 21, and the structure of the electromagnet is a public technology and is not described in detail herein. The first fixing block 19 is arranged to be used for installing the differential case into the first fixing block, and the differential case is fixed on the first fixing block 19 through the first electromagnet 20, at the moment, the outer surface of the differential case is clamped, the surface of an inner cavity is not shielded by the clamp, and the surface of the inner cavity is polished more thoroughly and uniformly; the second fixing block 21 is arranged to sleeve the differential case on the second fixing block 21, the second electromagnet 22 is used to fix the differential case on the second fixing block 21, at the moment, the inner cavity of the differential case is clamped, the surface of the outer shell is not shielded by the clamp, and the surface of the outer shell is polished more thoroughly;

in order to facilitate clamping of the differential, the control ends of the first electromagnet 20 and the second electromagnet 22 can be arranged into a foot control switch 25, the foot control switch 25 controls the first electromagnet 20 and the second electromagnet 22 to be powered on and powered off, and a control circuit is arranged in the telescopic column 7.

Still arranged the rabbling mechanism that can assist the polishing between anchor clamps one and the anchor clamps two, particularly, the rabbling mechanism is including arranging third motor 23 on polishing apron 6 and arranging the stirring rake 24 between anchor clamps one and anchor clamps two, the output of third motor 23 is through pivot and the coaxial fixed connection of stirring rake 24, third motor 23 drives the stirring rake 24 rotatory, the rotation of polishing storehouse 3 is with polishing sand by the storehouse end along the central point that the bulkhead spiral upwards flows and gush to opening 4 and put, polishing sand is disturbed in stirring of rethread stirring rake 24, further strengthen the flow of polishing sand, improve polishing quality and machining efficiency.

The bottom of the sealing plate 8 is also provided with an atomizing nozzle 9 for wetting polishing sand to achieve the purpose of cooling, the atomizing nozzle 9 is connected to a tap water pipe network through a water pipe for supplying water, a material receiving bin 10 for collecting waste liquid is arranged right below the polishing bin 3, the bin bottom of the polishing bin 3 is provided with a sieve pore 12 capable of screening waste water and grinding waste residues, the waste residues and the nozzle which are ground in the polishing bin 3 are discharged through the sieve pore 12 to enter the material receiving bin 10 for collection, and the polishing sand is blocked in the polishing bin 3 to polish the differential shell;

when the polishing sand box is used, the polishing cover plate 6 is controlled to close or open the opening 4 by controlling the second driving mechanism, polishing sand is put into the polishing cover plate 6 from the opening 4, the polishing cover plate 6 is lifted, the two differentials are respectively put into the first clamp and the second clamp to respectively polish the cavities and the shell of the first clamp, the polishing cover plate 6 is lowered to close the opening 4, the first motor 13 is started to drive the gear 15 to rotate so as to drive the gear ring 14 to rotate, the polishing bin 3 is driven by the gear ring 14 to rotate on the base 1, the polishing sand can upwards and spirally move along the bin wall due to centrifugal reasons during rotation and is converged to the central position of the opening 4, the third motor 23 drives the stirring paddle 24 to scatter the polishing sand, the activity of the polishing sand is increased, so that the differential shell is polished better and faster, the polishing cover plate 6 is lifted after the processing is finished, two differential mechanism shells are taken down and the reverse sides of the two differential mechanism shells are polished again, the differential mechanism shell taken down from the first clamp is loaded into the second clamp, the differential mechanism taken down from the second clamp is loaded into the first clamp, in the polishing process, the atomizing spray head 9 sprays water in the polishing bin 3, the polishing sand is cooled and has a dust suppression effect, and waste residues and cooling wastewater which are ground in the polishing bin 3 flow out from the sieve holes 12 to enter the receiving bin 10 to be collected.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In conclusion, the double-sided polishing device for the differential shell provided by the invention can polish the inner surface and the outer surface of the differential shell, has high polishing efficiency and good polishing effect, greatly reduces the influence on the workshop environment, reduces the harm to the human health, and is very suitable for being popularized and used in factory equipment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.