CN112496958A - Automatic sand paper replacing device and technological process method thereof - Google Patents
Automatic sand paper replacing device and technological process method thereof Download PDFInfo
- Publication number
- CN112496958A CN112496958A CN202011350244.4A CN202011350244A CN112496958A CN 112496958 A CN112496958 A CN 112496958A CN 202011350244 A CN202011350244 A CN 202011350244A CN 112496958 A CN112496958 A CN 112496958A
- Authority
- CN
- China
- Prior art keywords
- sand
- paper
- robot
- sticking
- head
- 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
Links
Images
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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/005—Manipulators for mechanical processing tasks
- B25J11/0065—Polishing or grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model provides an automatic trade abrasive paper device and process flow method thereof, automatic trade abrasive paper device mainly used for polishing machine head magic subsides automatic change of abrasive paper in the robot, automatic trade abrasive paper device mainly includes: support frame, desanding mechanism, centering mechanism, sand sticking mechanism and receiver etc.. The support frame is used for providing support for the whole mechanism; the sand removing mechanism is mainly used for removing invalid sand paper on the sand disc; the centering mechanism is used for repositioning the position of the sanding head after the sand paper is removed; the sand sticking mechanism is mainly used for sticking new sand paper to the disc surface of the polishing head again; receiver mainly used places the abrasive paper that became invalid. The method mainly comprises the following process flows: s1, the polishing robot clings to the upper surface of the sand removing mechanism to move along the length direction of the device, and invalid sand paper on the sand disc is removed; s2, moving the grinding head carried by the robot to the centering mechanism, and repositioning the sand disc; s3, moving the polishing head to the sand sticking mechanism, and feeding the sand sticking paper along the axial direction of the mechanism; and S4, finishing sand paper replacement.
Description
Technical Field
The invention relates to the field of robot polishing, in particular to an automatic sand paper replacing device and a process flow method thereof.
Background
Polishing is an important process in modern part processing, and can ensure that the surface of a part meets the preset requirement. At present, manual polishing operation is generally adopted in the market. The production efficiency of polishing is lower for the manual work, and the stability of quality is not high, and operational environment is poor and then leads to the cost of labor to increase gradually. Therefore, automatic grinding equipment of robot is in process of transporting. For some large-size parts, a spindle is usually adopted to rotate, and the grinding operation is completed through a grinding tool for sticking magic tape sand paper on a circular sand disc. The process involves the replacement of sandpaper, primarily by field workers. The manual sand paper replacement needs frequent starting and stopping of equipment, and the production beat is slowed down.
Some industrial robots replace the abrasive belt, so that the direct operation of workers is avoided, the automation of the startup and shutdown is realized, and the efficiency cannot keep up with the current production efficiency. Therefore, an automatic sand paper replacing device comes to work, but the problems of large volume, complex structure and high price generally exist in the prior sand paper replacing device.
Publication CN201710612712.2 discloses an automatic sand paper replacing device and a method thereof, which finally uses an XYZ three-degree-of-freedom mechanism to pick and stick sand paper, and shovels away old sand paper by a grinding blade; publication CN201810118417.6 discloses a device for automatically replacing flocked abrasive paper, which can identify the orientation of the abrasive paper surface, stably sort out flocked disc abrasive paper and replace more accurately; the patent publication CN201810180834.3 discloses an intelligent sand paper replacing device for grinding and polishing of a robot, which realizes automatic sand paper dropping through the matching of a hydraulic cylinder and a clamping block and realizes automatic sand paper sticking through the matching of a screw, a sticking disc and a sand paper placing barrel; publication 201910241126.0 discloses an automatic sand-changing table, which includes detecting, tearing sand paper and adhering sand paper, and can synchronously perform automatic detection, automatic sand tearing and automatic adhering sand for four grinding heads.
The published literature reports mention some automatic sand paper replacing devices and processes, which realize the automatic replacement of sand paper by using the motion of a control unit control mechanism, and also have processes of synchronously carrying out automatic detection, automatic sand tearing and automatic sand sticking on four polishing heads. However, the automatic sandpaper changing device in the market for the existing robot sanding system using abrasive discs and abrasive paper is rarely used, but the field requirement does exist. Aiming at the problem, the automatic sand paper replacing device and the process flow method are simple and reasonable in structure and method, automation of sand paper replacing of the robot polishing system can be effectively achieved, and production efficiency is improved.
Disclosure of Invention
The invention aims to provide an automatic sand paper replacing device and a process flow method thereof, which aim to solve the problem that the sand paper replacing efficiency of a sand disc of a polishing head of a polishing robot is low at present.
In order to solve the problems, the technical scheme of the invention is as follows: provided is an automatic sandpaper changing device, comprising: the sand removing device comprises a support frame, a sand removing mechanism, a centering mechanism, a sand sticking mechanism and a storage box; the sanding mechanism is connected with the support frame through a bolt, the storage box is placed right below the sanding mechanism, and when the invalid abrasive paper on the sanding head penetrates through a gap in the middle of the sanding mechanism, the invalid abrasive paper can be just recycled into the storage box; the centering mechanism is positioned on one side of the desanding mechanism and connected to the supporting frame. The sand sticking mechanism is connected to the bottom plate of the support frame.
Furthermore, the support frame is a box structure, is the base of all mechanisms, fixes other mechanisms, and keeps stable, and both sides have respectively a handle, make things convenient for artifical transport.
Furthermore, the centering mechanism adopts two circular stand columns which are connected on the supporting frame through threads.
Furthermore, the sand sticking mechanism is connected to the bottom plate of the support frame through bolts.
Further, the mechanism that desands adopts the crossing inclined plane of low-angle to constitute, and the sand pan falls on the mechanism that desands and moves, and abrasive paper is scraped off by the steel sheet and drops into in the receiver of below.
Further, the centering mechanism is used for repositioning the axis positions of the abrasive disc and the grinding head after the grinding robot discharges the ineffective abrasive paper.
Furthermore, the sand-sticking mechanism carries the sanding head to move along the axis of the sand-sticking machine through the robot, and new sand paper is stuck.
The invention also provides a process flow method based on the automatic sand paper replacing device, which comprises the following steps of:
s1, the polishing robot clings to the upper surface of the sand removing mechanism to move along the length direction of the device, and invalid sand paper on the sand disc is removed;
s2, moving the grinding head carried by the robot to the centering mechanism, and repositioning the sand disc;
s3, moving the polishing head to the sand sticking mechanism, and feeding the sand sticking paper along the axial direction of the mechanism;
and S4, finishing sand paper replacement.
The invention has the advantages that: the automatic sand paper replacing device is provided with an accurate centering mechanism, so that the axis position of the sand plate is accurately positioned again, the accuracy of sand paper pasting is ensured, and the teaching of a robot is facilitated; on the other hand, the device has a simple structure, is low in cost, is reasonable in method, can effectively realize automation of polishing and sand paper changing of the robot, and solves practical problems.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an automatic sandpaper changing device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a sand sticking mechanism for automatic sand change paper assembly according to an embodiment of the present invention.
Fig. 3 is a process flow chart of the automatic sandpaper replacing and sand replacing process provided by the embodiment of the invention.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings and specific embodiments of an automatic sandpaper changing apparatus and a process flow method thereof, but the scope of the present invention is not limited to the following embodiments. In the figure, 1-a support frame, 2-a sand removing mechanism, 3-a storage box, 4-a centering mechanism, 5-a sand sticking mechanism, 51-an adjustable baffle, 52-a guide column, 53-a support plate and 54-a support cylinder.
As shown in fig. 1, the automatic sandpaper changing device mainly includes the following parts: support frame 1, desanding mechanism 2, receiver 3, centering mechanism 4, sand sticking mechanism 5 etc.. Wherein, support frame 1 is a box structure, for the base of all mechanisms, fixes other mechanisms to remain stable, both sides have respectively a handle, make things convenient for artifical transport. Desanding mechanism 2 passes through bolted connection with support frame 1, and receiver 3 is placed under desanding mechanism 2 position, and the inefficacy abrasive paper that works as on the head of polishing sees through the middle gap of desanding mechanism 2, just in time can retrieve in receiving box 3. The centering mechanism 4 is positioned on one side of the desanding mechanism 2, adopts two circular upright posts and is connected on the support frame 1 through threads. The sand sticking mechanism 5 is connected on the bottom plate of the support frame 1 by bolts.
The detailed internal structure of the sand-binding mechanism 5 is shown in fig. 2, and comprises an adjustable baffle 51, a guide column 52, a support plate 53 and a support cylinder 54. The adjustable baffle 51 is positioned above the sand sticking mechanism 5, is composed of four blocks, is uniformly distributed at four equal intervals along the circumference, has the direction facing to the axial lead of the mechanism, and is adjusted by the U-shaped groove to extend out of the edge of the mechanism, so as to prevent the overflow of new sand paper at the inner side of the mechanism. The guide column 52 is used for positioning the abrasive paper, and the mechanism is suitable for the abrasive paper with 6 uniformly distributed follow-up dust removing openings at the bottom, and if the abrasive paper does not have the dust removing openings, the part of the structure can be disassembled. The supporting plate 53 is used for providing support for the sandpaper inside the sand-binding mechanism. The supporting cylinder 54 provides certain supporting force and flexibility for the supporting plate 53 when the sanding head is sanded, and ensures that the supporting plate 53 can always provide support for the sandpaper by the variable few in-process.
As shown in fig. 3, the automatic sandpaper changing device mainly comprises the following process flows:
s1, the polishing robot clings to the upper surface of the sand removing mechanism to move along the length direction of the equipment, and invalid sand paper on the sand disc is removed;
s2, moving the grinding head carried by the robot to the centering mechanism, and repositioning the sand disc;
s3, moving the polishing head to the sand sticking mechanism, and feeding the sand sticking paper along the axial direction of the mechanism;
and S4, finishing sand paper replacement.
As shown in the process S1, the detailed procedure of sanding and degritting of the sanding head is as follows: the robot carries the polishing head to move above the desanding mechanism, and the surface of the grinding disc of the polishing head is tightly attached to the upper surface of the desanding mechanism. The robot is along trading sand machine length direction straight line and feeding, pastes the effect of the crossing angle board of sand removal mechanism through the abrasive paper that became invalid on the sand table, and the abrasive paper front end is advanced to go into sand removal mechanism gap, and along with the robot operation, the whole abrasive paper that breaks away from of sand table drops in the receiver of below to accomplish the process of removing sand.
As shown in the process S2, the detailed process of the sanding head centering is as follows: the sanding head with the sand paper removed is lifted along the height direction and moves to the position of the in-team mechanism, and the robot moves to enable the sanding head sand tray to lean against the in-team mechanism at a repeated fixed position, so that the sand tray is positioned in a posture fixed relative to the axis of the sanding head, centering is achieved, and preparation is made for sand sticking.
As shown in the process S3, the detailed procedure of sanding is as follows: the robot carries the grinding head to move to a fixed position above the sand bonding mechanism, vertically feeds along the axial direction of the sand bonding mechanism, and slows down the feeding speed of the robot after entering the inside of the sand bonding mechanism. At the moment, the new sand paper in the sand sticking mechanism is stuck to the lower surface of the sand plate under the interaction of the supporting cylinder and the robot. And then, lifting the robot in the original path to finish the sand adhering process, and further finishing the whole sand paper replacing process.
The automatic sand paper replacing device and the process flow method thereof provided by the invention are proved to be effective and reliable according to multiple sand replacing tests on the actual site.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (11)
1. An automatic sand paper replacing device is characterized by comprising the following parts: the sand removing device comprises a support frame, a sand removing mechanism, a centering mechanism, a sand sticking mechanism and a storage box;
the desanding mechanism is connected with the support frame through a bolt;
the storage box is arranged at the position right below the sand removing mechanism, and when the invalid abrasive paper on the polishing head penetrates through a middle gap of the sand removing mechanism, the invalid abrasive paper can be just recycled into the storage box;
the centering mechanism is positioned on one side of the desanding mechanism and connected to the supporting frame;
the sand sticking mechanism is connected to the bottom plate of the support frame.
2. An automatic sandpaper changing device as defined in claim 1, wherein said supporting frame is a box structure, which is a base for all the mechanisms, holds the other mechanisms, and is stable, and has a handle on each side for easy manual handling.
3. An automatic sandpaper changing device as defined in claim 1, wherein said centering means comprises two circular posts screwed to said supporting frame.
4. An automatic sandpaper changing apparatus as defined in claim 1, wherein said sand adhering means is bolted to the bottom plate of the supporting frame.
5. An automatic sandpaper changing device as defined in claim 1, wherein said sand removing means is formed by inclined surfaces intersecting at a small angle, the sand plate is moved on the sand removing means, and the sandpaper is scraped off by the steel sheet and falls into the receiving box below.
6. An automated sandpaper changing apparatus according to claim 1, wherein the centering mechanism is adapted to reposition the sanding disc and the axis of the sanding head after the abrasive paper has been ejected from the sanding robot.
7. An automatic sandpaper changing apparatus as defined in claim 1, wherein said sanding mechanism is configured to apply a new sandpaper by moving said sanding head along a sanding axis with said robot.
8. The process flow method of an automatic sandpaper changing device according to any one of claims 1 to 7, characterized by comprising the steps of:
s1, the polishing robot clings to the upper surface of the sand removing mechanism to move along the length direction of the device, and invalid sand paper on the sand disc is removed;
s2, moving the grinding head carried by the robot to the centering mechanism, and repositioning the sand disc;
s3, moving the sanding head to the sand sticking mechanism, feeding the sand sticking paper along the axial direction of the mechanism,
and S4, finishing sand paper replacement.
9. The process flow method for automatically changing sand paper as claimed in claim 8, wherein the S1 robot carries the grinding head to move above the sand removing mechanism, so that the grinding head grinding disc surface is tightly attached to the upper surface of the sand removing mechanism; the robot is along trading sand machine length direction straight line and feeding, pastes the effect of the crossing angle board of sand removal mechanism through the abrasive paper that became invalid on the sand table, and the abrasive paper front end is advanced to go into sand removal mechanism gap, and along with the robot operation, the whole abrasive paper that breaks away from of sand table drops in the receiver of below to accomplish the process of removing sand.
10. The process flow method for automatically changing an abrasive paper device as claimed in claim 8, wherein said step S2 comprises removing the sanding head of the abrasive paper, lifting the sanding head in the height direction, moving the sanding head to the center-of-line mechanism position, and moving the robot to make the sanding head abrasive disc lean against the center-of-line mechanism in a repeated fixed position, thereby achieving the attitude of the abrasive disc in a fixed position relative to the axis of the sanding head, achieving centering, and preparing for sand sticking.
11. The process flow method for automatically changing sandpaper device according to claim 8, wherein the S3 robot carries the sanding head to move to a fixed position above the sand-binding mechanism, and feeds vertically along the axis of the sand-binding mechanism, and slows down the feeding speed of the robot after entering the inside of the sand-binding mechanism; at the moment, the new sand paper in the sand sticking mechanism is stuck to the lower surface of the sand plate under the interaction of the supporting cylinder and the robot. And then, lifting the robot in the original path to finish the sand adhering process, and further finishing the whole sand paper replacing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350244.4A CN112496958A (en) | 2020-11-26 | 2020-11-26 | Automatic sand paper replacing device and technological process method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350244.4A CN112496958A (en) | 2020-11-26 | 2020-11-26 | Automatic sand paper replacing device and technological process method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112496958A true CN112496958A (en) | 2021-03-16 |
Family
ID=74966397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011350244.4A Pending CN112496958A (en) | 2020-11-26 | 2020-11-26 | Automatic sand paper replacing device and technological process method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112496958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109579A1 (en) * | 2021-12-16 | 2023-06-22 | 昂华（上海）自动化工程股份有限公司 | Paint surface reciprocating grinding and polishing abrasive paper system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584660A (en) * | 1991-06-28 | 1993-04-06 | Yamaha Corp | Automatic changer for sand paper |
| CN103111943A (en) * | 2013-03-11 | 2013-05-22 | 宁波普利达智能科技应用有限公司 | Automatic sand paper replacement mechanism |
| CN107199508A (en) * | 2017-06-07 | 2017-09-26 | 禹奕智能科技（上海）有限公司 | A kind of intelligent sand paper more changing device for robot sanding and polishing |
| CN107214620A (en) * | 2017-06-07 | 2017-09-29 | 禹奕智能科技（上海）有限公司 | A kind of intelligent sand fallout paper device for robot sanding and polishing |
| CN107283288A (en) * | 2017-07-03 | 2017-10-24 | 广州蓝圣智能科技有限公司 | Pneumatic sanding and polishing machine sand paper mechanism for automatically switching |
| CN206869677U (en) * | 2017-06-01 | 2018-01-12 | 浙江安浦科技有限公司 | A kind of sand paper automatic-exchanging system |
| CN209304323U (en) * | 2019-07-23 | 2019-08-27 | 佛山市老安自动化科技有限公司 | Sander consumptive material replaces mechanism automatically |
| CN211805528U (en) * | 2020-03-16 | 2020-10-30 | 大儒科技(苏州)有限公司 | Sand paper replacing mechanism |
-
2020
- 2020-11-26 CN CN202011350244.4A patent/CN112496958A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584660A (en) * | 1991-06-28 | 1993-04-06 | Yamaha Corp | Automatic changer for sand paper |
| CN103111943A (en) * | 2013-03-11 | 2013-05-22 | 宁波普利达智能科技应用有限公司 | Automatic sand paper replacement mechanism |
| CN206869677U (en) * | 2017-06-01 | 2018-01-12 | 浙江安浦科技有限公司 | A kind of sand paper automatic-exchanging system |
| CN107199508A (en) * | 2017-06-07 | 2017-09-26 | 禹奕智能科技（上海）有限公司 | A kind of intelligent sand paper more changing device for robot sanding and polishing |
| CN107214620A (en) * | 2017-06-07 | 2017-09-29 | 禹奕智能科技（上海）有限公司 | A kind of intelligent sand fallout paper device for robot sanding and polishing |
| CN107283288A (en) * | 2017-07-03 | 2017-10-24 | 广州蓝圣智能科技有限公司 | Pneumatic sanding and polishing machine sand paper mechanism for automatically switching |
| CN209304323U (en) * | 2019-07-23 | 2019-08-27 | 佛山市老安自动化科技有限公司 | Sander consumptive material replaces mechanism automatically |
| CN211805528U (en) * | 2020-03-16 | 2020-10-30 | 大儒科技(苏州)有限公司 | Sand paper replacing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109579A1 (en) * | 2021-12-16 | 2023-06-22 | 昂华（上海）自动化工程股份有限公司 | Paint surface reciprocating grinding and polishing abrasive paper system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105382650B (en) | Full-automatic double-end face is ground production line | |
| US8382081B2 (en) | Method for machining a workpiece as well as such machining device | |
| CN112318222A (en) | Multi-station machining system and method for four-edge end mill | |
| EP0484674B1 (en) | Process for the automatic machining of edges of glass plates and apparatus for carrying out said process | |
| CN215035972U (en) | Forming centerless cylindrical grinding machine | |
| CN205271668U (en) | Automatic burnishing and polishing device | |
| CN114193289A (en) | Equipment and method for continuously feeding and discharging and continuously polishing arc plate for ship | |
| CN112496958A (en) | Automatic sand paper replacing device and technological process method thereof | |
| CN205325371U (en) | Lens edging machine | |
| CN112757066A (en) | Forming centerless cylindrical grinding machine | |
| CN210231186U (en) | Automatic feeding and discharging system of numerical control punch for production of car ceiling ornaments | |
| CN115106825A (en) | Automatic production line for machining of numerical control machine tool and machining method of automatic production line | |
| CN205414713U (en) | A location and support clamping mechanism for laser cutting | |
| CN210147653U (en) | Tool grinding machine | |
| WO2023137928A1 (en) | Intelligent plane polishing | |
| CN203343855U (en) | Automatic grinder | |
| CN113968463A (en) | Automatic feeding and discharging magnetizing equipment for ring-shaped device | |
| CN208391730U (en) | Cell-phone shell grinding device | |
| CN107243785B (en) | Auxiliary material distribution device for blade grinding and use method thereof | |
| CN208091383U (en) | A kind of workpiece segment difference detection machine | |
| CN114894240B (en) | Production line for machining mechanical parts and machining method of production line | |
| CN220007062U (en) | Automatic production line for sharpening blade robot | |
| CN216566428U (en) | High efficiency thin wall class foundry goods grinding device | |
| CN211332612U (en) | Multifunctional automatic grinding device for practical training | |
| CN215148007U (en) | Quick workpiece changing structure of high-precision polishing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210316 |
|
| RJ01 | Rejection of invention patent application after publication |