CN108296913A - A kind of auto parts machinery sander - Google Patents
A kind of auto parts machinery sander Download PDFInfo
- Publication number
- CN108296913A CN108296913A CN201810098559.0A CN201810098559A CN108296913A CN 108296913 A CN108296913 A CN 108296913A CN 201810098559 A CN201810098559 A CN 201810098559A CN 108296913 A CN108296913 A CN 108296913A
- Authority
- CN
- China
- Prior art keywords
- auto parts
- water pipe
- workpiece
- chamber
- pipe
- 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.)
- Pending
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Classifications
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
-
- 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
-
- 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
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to the technical fields of auto parts machinery processing, specifically disclose a kind of auto parts machinery sander, including rack and the conveyer belt for conveying work pieces, and the rack is fixedly connected with the U-shaped water pipe of both ends sealing, and U-shaped water pipe is communicated with water delivery mechanism；U-shaped its symmetrical center line of water pipe upper edge is arranged with workpiece polishing mechanism, each workpiece polishing mechanism includes cylinder body and stepper motor, piston is slidably connected in cylinder body, cylinder body separation is independent first chamber and second chamber by piston, water inlet pipe is communicated between first chamber and U-shaped water pipe, first chamber is communicated with outlet pipe；Piston is connected with piston rod, and piston rod is fixedly connected with push plate, and push plate is connected with stepper motor, and the output end of stepper motor is connected with grinding head；Conveyer belt is located at the underface of U-shaped water pipe.The present invention can ensure it is consistent to the polishing degree of I-shaped auto parts machinery both sides processing groove, improve polishing after product qualification rate, extend the service life of product.
Description
Technical field
The present invention relates to the technical fields of auto parts machinery processing, specifically disclose a kind of auto parts machinery sander.
Background technology
The type of auto parts machinery is various, including engine fittings, braking system accessory and electrical instrumentation class accessory etc..Wherein,
It is to be slidably connected, such as the toggle presence in engine fittings is slidably connected to have the connection type of many auto parts machineries
Relationship.To ensure the stability being slidably connected between auto parts machinery, the friction between auto parts machinery is reduced, it will usually match in automobile
I-shaped slot or ridge are processed on part, are reached between mobile guiding, reduction sliding-frictional resistance and realization auto parts machinery with this
The purpose being stably connected with.In the process of I-shaped auto parts machinery, since accessory surface is there are more burr, need pair
Accessory is polished so that accessory reaches requirement.In bruting process, need precisely to beat I-shaped auto parts machinery
Mill, polishing degree of two side i.e. two processing groove that it is recessed in particular for guarantee in process of polishing keep one
It causes, avoids causing the relationship that is slidably connected of I-shaped auto parts machinery unstable because two processing groove polishing degree are inconsistent,
Cause the security risk during use.I-shaped auto parts machinery cannot be made to reach requirement using manual grinding at present,
And rarely have in the prior art dedicated for the grinding device for I-shaped auto parts machinery of polishing, it is a kind of special therefore, it is necessary to design
In the grinding device of polishing I-shaped auto parts machinery.
Invention content
The invention is intended to provide a kind of auto parts machinery sander, to exist to it when solving polishing I-shaped auto parts machinery
The inconsistent problem of both sides processing groove polishing degree.
In order to achieve the above object, base case of the invention is：A kind of auto parts machinery sander, including rack and be used for
The conveyer belt of conveying work pieces, the rack are fixedly connected with the U-shaped water pipe of both ends sealing, and U-shaped water pipe is communicated with water delivery mechanism, institute
Water delivery mechanism is stated to be located in the symmetrical center line of U-shaped water pipe；Described U-shaped its symmetrical center line of water pipe upper edge is arranged with sander
Structure, the workpiece polishing mechanism include cylinder body and stepper motor, and piston is slidably connected in the cylinder body, and cylinder body is divided into solely by piston
Vertical first chamber and second chamber, is communicated with water inlet pipe between first chamber and U-shaped water pipe, water inlet pipe is equipped with for controlling the
First valve of one chamber inflow, first chamber are communicated with outlet pipe, and outlet pipe is equipped with the second valve, second chamber side wall
It is fixedly connected with spring with piston space；The piston is fixedly connected with piston rod, and piston rod is fixedly connected with push plate, and push plate is separate
The side of piston is fixedly linked with stepper motor, and the output end of the stepper motor is removably connected with grinding head；The transmission
Band is located at the underface of U-shaped water pipe, and the clamping piece for being useful for clamping workpiece is fixedly mounted on conveyer belt.
The operation principle of this base case is：Since the workpiece polishing mechanism on U-shaped water pipe is the symmetrical centre along U-shaped water pipe
Line is symmetrically arranged, and therefore, in same level, each water inlet pipe and the hydraulic pressure of U-shaped water pipe junction are identical.In phase
With hydraulic pressure under, the first valve controlled in each workpiece polishing mechanism is opened simultaneously, is simultaneously closed off, then each cylinder body first chamber
Inflow is consistent, at this time since water delivery mechanism constantly conveys water body into U-shaped water pipe, the hydraulic pressure foot in U-shaped water pipe
It is enough to be pressed into water body in first chamber from into U-shaped water pipe.After water body enters first chamber, pressure is applied to piston so that piston
It is slided to the direction of second chamber, spring, which is squeezed, at this time deforms upon and have elastic-restoring force, is fixedly connected on simultaneously
Piston rod on piston pushes push plate to be moved to workpiece direction, and the stepper motor being fixedly connected in push plate moves therewith, most
Eventually so that the grinding head in each workpiece polishing mechanism while contact workpiece.After the clamping piece stable holding workpiece on transmission belt,
Start stepper motor, drives grinding head rotation to polish workpiece, each grinding head is one to the polishing degree of workpiece at this time
It causes.
The advantageous effect of this base case is：Workpiece polishing mechanism in this base case is with the symmetrical center line of U-shaped water pipe
Centered on axial symmetry be arranged on U-shaped water pipe so that the hydraulic pressure phase of symmetrically arranged each water inlet pipe and U-shaped water pipe junction
Together, the inflow of cylinder body first chamber is controlled by controlling the opening time of the first valve so that each first chamber
Inflow is identical, so that the pressure that each grinding head applies workpiece is identical, ensures each grinding head to " work " word with this
The polishing degree of shape auto parts machinery is identical, and I-shaped auto parts machinery is avoided to make because the polishing degree of two processing groove is different
It is unstable with the connection relation of other auto parts machineries to obtain it, I-shaped auto parts machinery guiding movement can not be played, reduce sliding
The effect of frictional resistance reduces the disqualification rate of product, improves product polishing quality.In addition, due to grinding head and stepper motor
Output end be to be detachably connected, therefore different grinding heads can be replaced according to the size of workpiece polish, realization is to difference
The workpiece of size is polished.
Further, several branch pipes are communicated on the U-shaped water pipe, each branch pipe is equipped with for controlling branch pipe water flowing
Or the third valve cut off the water supply, branch pipe are threaded with nozzle.Third valve is opened, branch pipe water flowing is controlled, water body is sprayed onto from nozzle
Workpiece surface cools down to workpiece, and the heat generated when polishing is avoided to make workpiece that local deformation occur.In addition, can also be clear
The clast of clean adherency on the surface of the workpiece, completes the cleaning to workpiece.Meanwhile from nozzle spray water body can effectively from
The dust generated when reason polishing workpiece avoids dust from diffusing in air, to avoid staff from sucking dust nuisance body
Health.
Further, the piston rod is equipped with graduation mark.Can clearly learn in this way in each workpiece polishing mechanism grinding head to
The distance of workpiece direction movement, be conducive to staff grasp the movement of each grinding head distance it is whether identical, so as to right in time
Workpiece polishing mechanism in this programme is adjusted or repairs.
Further, the grinding head is cylindrical.Compared to the grinding head of other shapes, cylindrical grinding head can be same
When polish I-shaped auto parts machinery processing groove each side wall, improve grinding efficiency.
Further, the middle part of the U-shaped water pipe is equipped with the workpiece polishing mechanism for workpiece surface of polishing, in this way, can not only
Enough end faces of polishing I-shaped auto parts machinery, additionally it is possible to be clamped so that workpiece polishing mechanism cooperates with the clamping piece on conveyer belt
I-shaped auto parts machinery reinforces the stability that I-shaped auto parts machinery is clamped.
Further, the clamping piece is fixedly connected with rubber layer close to the side of workpiece, and clamping piece is avoided to scratch workpiece table
Face.
Further, the outlet pipe is communicated with aqua storage tank, recycles the water body being discharged from cylinder body first chamber, saves water
Resource.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the enlarged drawing of A in Fig. 1.
Specific implementation mode
Below by the further details of explanation of specific implementation mode：
Reference numeral in Figure of description includes：Conveyer belt 1, U-shaped water pipe 2, water delivery mechanism 3, branch pipe 4, third valve
5, nozzle 6, workpiece polishing mechanism 7, cylinder body 8, piston 9, first chamber 10, second chamber 11, water inlet pipe 12, the first valve 13, water outlet
Pipe 14, the second valve 15, spring 16, piston rod 17, push plate 18, stepper motor 19, grinding head 20, clamping piece 21, workpiece 22.
Embodiment 1
The present embodiment is basic as shown in Figure 1, a kind of auto parts machinery sander, including rack and the biography for conveying work pieces 22
Band 1, rack is sent to be fixedly connected with the U-shaped water pipe 2 of both ends sealing, U-shaped water pipe 2 is communicated with water delivery mechanism 3, and water delivery mechanism 3 is located at U
In the symmetrical center line of type water pipe 2, water delivery mechanism 3 includes sink and water pump.There are two branch pipes 4 for connection on U-shaped water pipe 2, each
Branch pipe 4 is equipped with the third valve 5 for controlling 4 water flowing of branch pipe or cutting off the water supply, and branch pipe 4 is threaded with nozzle 6.2 edge of U-shaped water pipe
Its symmetrical center line is symmetrical to be equipped with workpiece polishing mechanism 7, and the middle part of U-shaped water pipe 2 is equipped with beating for 22 upper surface of workpiece of polishing
Grinding machine structure 7, in conjunction with shown in Fig. 2, each workpiece polishing mechanism 7 includes cylinder body 8 and stepper motor 19, and piston is slidably connected in cylinder body 8
9, the separation of cylinder body 8 is independent first chamber 10 and second chamber 11 by piston 9, is communicated between first chamber 10 and U-shaped water pipe 2
Water inlet pipe 12, water inlet pipe 12 are equipped with the first valve 13 for controlling 10 inflow of first chamber, and first chamber 10 is communicated with
Outlet pipe 14, outlet pipe 14 are equipped with the second valve 15, and outlet pipe 14 is communicated with aqua storage tank, 11 right side wall of second chamber and piston
Spring 16 is fixedly connected between 9.Piston 9 is fixedly connected with piston rod 17, and the right end of piston rod 17 is fixedly connected with push plate 18, pushes away
It is fixedly linked with stepper motor 19 on the right side wall of plate 18, the output end of stepper motor 19 is removably connected with grinding head 20, beats
Bistrique 20 is cylindrical.Conveyer belt 1 is located at the underface of U-shaped water pipe 2, is fixedly mounted on conveyer belt 1 and is useful for clamping workpiece 22
Clamping piece 21, clamping piece 21 be fixedly connected on the one side of workpiece 22 be useful for protection workpiece 22 rubber layer.
When specific works, workpiece 22 is simultaneously sent to designated position by 21 clamping workpiece 22 of clamping piece on transmission belt, at this time
The central axes of workpiece 22 and the symmetrical center line of U-shaped water pipe 2 coincide.The constantly moisturizing into U-shaped water pipe 2 of water delivery mechanism 3, moment
The hydraulic pressure in U-shaped water pipe 2 is kept to be pressed into water body in the first chamber 10 of cylinder body 8 enough.Due to left and right two on U-shaped water pipe 2
Workpiece polishing mechanism 7 be along U-shaped water pipe 2 symmetrical center line it is symmetrically arranged, therefore, each connect into U-shaped water pipe 12 and U-shaped water pipe 2
The hydraulic pressure at the place of connecing is identical.In conjunction with shown in Fig. 2, the first valve 13 of the workpiece polishing mechanism 7 on the left side and the right is opened simultaneously, it is U-shaped
Water body in water pipe 2 is entered by water inlet pipe 12 in the first chamber 10 of cylinder body 8, and beating for the left side and the right is simultaneously closed off after ten seconds
First valve 13 of grinding machine structure 7 prevents water body from going successively in first chamber 10.In the above process, the water in first chamber 10
Body applies piston 9 pressure to the right, pushes piston 9 to slide to the right, so that piston rod 17, push plate 18, stepper motor 19
And grinding head 20 moves right, the inner wall of 20 contact workpiece of final grinding head, 22 left side processing groove simultaneously applies to the right inner wall
Pressure.Similarly, the grinding head 20 in Fig. 1 in the workpiece polishing mechanism 7 of the right will be moved to the left, the 22 right side processing of final contact workpiece
The inner wall of slot simultaneously applies pressure to the left to inner wall.Polishing of two grinding heads 20 in left and right to the processing groove inner wall of workpiece 22 at this time
Degree is consistent, and the workpiece 22 after polishing can coordinate other auto parts machineries to work normally, and avoids the workpiece 22 after polishing that from can not sending out
Wave the situation generation that guiding is mobile, reduces sliding-frictional resistance effect.Similarly, 2 middle part of U-shaped water pipe is fixedly connected in Fig. 1
Grinding head 20 in workpiece polishing mechanism 7 will move down, and apply downward pressure to the upper surface of workpiece 22, start stepper motor
After 19, grinding head 20 polishes to the upper surface of workpiece 22.Also, in Fig. 1 top workpiece polishing mechanism 7 in grinding head 20 with
21 mutual cooperation clamping workpiece 22 of clamping piece on conveyer belt 1 enhances the stability of clamping workpiece 22.
After closing the first valve 13, start after stepper motor 19 carries out a period of time polishing to workpiece 22, when friction produces
Raw heat makes the temperature of workpiece 22 be gradually increasing, and opens third valve 5 at this time, and the water body in U-shaped water pipe 2 passes through branch pipe 4
Workpiece 22 is sprayed to from nozzle 6, water body volatilizees after absorbing the heat on workpiece 22, takes away heat, cool down to workpiece 22.And
And water body can clean the polishing clast of the adherency on 22 surface of workpiece, while the dust generated when polishing can be avoided to diffuse
The health of staff is endangered in air.
It polishes after the completion of workpiece 22, closes third valve 5 and stepper motor 19, in conjunction with shown in Fig. 2, open on outlet pipe 14
The second valve 15, piston 9 slides under the elastic recovery force effect of spring 16, the water body in first chamber 10 passed through to the left
Go out U-shaped water pipe 14 to squeeze into aqua storage tank, recycles the part water body convenient for staff, avoid the waste of water resource.Together
When, piston rod 17, push plate 18, stepper motor 19 and grinding head 20 are moved to the left, the no longer contact workpiece 22 of grinding head 20.Together
It manages, the grinding head 20 in Fig. 1 in the workpiece polishing mechanism 7 on the right moves right, and no longer contact workpiece 22, conveyer belt 1 pass workpiece 22
It send to next processing stand.
Embodiment 2
The present embodiment difference from example 1 is that：Piston rod 17 is equipped with graduation mark, in this way, entering in water body
After first chamber 10 pushes piston movement, staff can observe the graduation mark on left and right two piston rods 17, and read
The displacement distance of the displacement distance of two piston rods 17 i.e. two grinding head 20, compares the two displacement distances, when the two shiftings
It is dynamic apart from it is consistent when, start stepper motor 19, stepper motor 19 drives grinding head 20 to rotate, to the processing groove inner wall of workpiece 22 into
Row polishing further ensures that the present apparatus is consistent to the processing groove inner wall polishing degree of workpiece 22, improves polishing quality.As work people
When member has found that the graduation mark reading on left and right two piston rods 17 is inconsistent, the water in first chamber 10 can be adjusted in time,
So that readings are consistent for the graduation mark of two piston rods 17, grinding head 20 is avoided to differ the processing groove sidewall polishing degree of workpiece 22
It causes.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.
Claims (7)
1. a kind of auto parts machinery sander, including rack and the conveyer belt for conveying work pieces, it is characterised in that：The rack is solid
Surely it is connected with the U-shaped water pipe of both ends sealing, U-shaped water pipe is communicated with water delivery mechanism, and the water delivery mechanism is located at the symmetrical of U-shaped water pipe
On center line；Described U-shaped its symmetrical center line of water pipe upper edge is arranged with workpiece polishing mechanism, and the workpiece polishing mechanism includes cylinder body and step
Stepper motor, slidably connects piston in the cylinder body, and cylinder body separation is independent first chamber and second chamber by piston, and first
It is communicated with water inlet pipe between chamber and U-shaped water pipe, water inlet pipe is equipped with the first valve for controlling first chamber inflow, and first
Chamber has outlet pipe, outlet pipe to be equipped with the second valve, and second chamber side wall is fixedly connected with spring with piston space；It is described
Piston is fixedly connected with piston rod, and piston rod is fixedly connected with push plate, side of the push plate far from piston and stepper motor stationary phase
Even, the output end of the stepper motor is removably connected with grinding head；The conveyer belt is located at the underface of U-shaped water pipe, transmission
Take the clamping piece for being fixedly mounted and being useful for clamping workpiece.
2. auto parts machinery sander according to claim 1, it is characterised in that：It is communicated on the U-shaped water pipe several
Pipe, the branch pipe are equipped with the third valve for controlling branch pipe water flowing or cutting off the water supply, and branch pipe line is connected with nozzle.
3. auto parts machinery sander according to claim 2, it is characterised in that：The piston rod is equipped with graduation mark.
4. auto parts machinery sander according to claim 3, it is characterised in that：The grinding head is cylindrical.
5. auto parts machinery sander according to claim 3, it is characterised in that：The middle part of the U-shaped water pipe is equipped with and is used for
The workpiece polishing mechanism of polishing workpiece surface.
6. auto parts machinery sander according to claim 5, it is characterised in that：The clamping piece is solid close to the side of workpiece
Surely it is connected with rubber layer.
7. auto parts machinery sander according to claim 6, it is characterised in that：The outlet pipe is communicated with aqua storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098559.0A CN108296913A (en) | 2018-01-31 | 2018-01-31 | A kind of auto parts machinery sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098559.0A CN108296913A (en) | 2018-01-31 | 2018-01-31 | A kind of auto parts machinery sander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108296913A true CN108296913A (en) | 2018-07-20 |
Family
ID=62850573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810098559.0A Pending CN108296913A (en) | 2018-01-31 | 2018-01-31 | A kind of auto parts machinery sander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108296913A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396999A (en) * | 2018-12-08 | 2019-03-01 | 山东莱德机械有限公司 | Remove the emery wheel of groove pipe fitting flash |
| CN109397000A (en) * | 2018-12-08 | 2019-03-01 | 山东莱德机械有限公司 | Groove pipe fitting flash removal device |
| CN110328600A (en) * | 2019-08-06 | 2019-10-15 | 江门市亚泰智能抛磨科技有限公司 | A kind of robot polishing grinding device of auto parts and components |
| CN113059465A (en) * | 2021-03-11 | 2021-07-02 | 吾尚良品环境服务(上海)有限公司 | A resorption type ring moisture protection mill for stone material maintenance |
| CN113319678A (en) * | 2021-05-25 | 2021-08-31 | 江西华冠钢结构有限公司 | Sheet metal cutting and polishing device based on double-side synchronous polishing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396999A (en) * | 2018-12-08 | 2019-03-01 | 山东莱德机械有限公司 | Remove the emery wheel of groove pipe fitting flash |
| CN109397000A (en) * | 2018-12-08 | 2019-03-01 | 山东莱德机械有限公司 | Groove pipe fitting flash removal device |
| CN109396999B (en) * | 2018-12-08 | 2024-02-23 | 山东莱德机械有限公司 | Grinding wheel for removing burrs of grooved pipe fitting |
| CN109397000B (en) * | 2018-12-08 | 2024-02-23 | 山东莱德机械有限公司 | Device for removing burrs of grooved pipe fitting |
| CN110328600A (en) * | 2019-08-06 | 2019-10-15 | 江门市亚泰智能抛磨科技有限公司 | A kind of robot polishing grinding device of auto parts and components |
| CN113059465A (en) * | 2021-03-11 | 2021-07-02 | 吾尚良品环境服务(上海)有限公司 | A resorption type ring moisture protection mill for stone material maintenance |
| CN113059465B (en) * | 2021-03-11 | 2024-03-15 | 吾尚良品环境服务(上海)有限公司 | Back suction type environment-friendly wet grinding machine for stone maintenance |
| CN113319678A (en) * | 2021-05-25 | 2021-08-31 | 江西华冠钢结构有限公司 | Sheet metal cutting and polishing device based on double-side synchronous polishing |
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Application publication date: 20180720 |
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| RJ01 | Rejection of invention patent application after publication |