CN214212555U - Welding gun cleaning device - Google Patents
Welding gun cleaning device Download PDFInfo
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- CN214212555U CN214212555U CN202022402810.3U CN202022402810U CN214212555U CN 214212555 U CN214212555 U CN 214212555U CN 202022402810 U CN202022402810 U CN 202022402810U CN 214212555 U CN214212555 U CN 214212555U
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Abstract
The application relates to a welder cleaning device includes: the cleaning device comprises a shell, a cleaning device and a cleaning device, wherein an accommodating cavity for accommodating cleaning pills is formed in the shell, and a jet orifice communicated with the accommodating cavity is formed in the shell; and the pill driving mechanism is connected with the shell and used for driving the cleaning pills in the accommodating cavity to be sprayed out of the jet orifice so as to enable the cleaning pills to impact and clean welding slag adhered to the surface of the welding nozzle. The application sprays the cleaning pellets into the gas protective sleeve at the front end of the welding gun through the pellet driving mechanism, the cleaning pellets collide with the surface of the inner part and the outer part of the protective sleeve, and the welding slag attached to the surface of the part is knocked down to achieve the purpose of cleaning the welding slag of the welding gun.
Description
Technical Field
The application relates to the technical field of welding, in particular to a welding gun cleaning device.
Background
Because of the existence of welding spatter in the gas shielded welding process, the welding spatter can be adhered to the inner surface and the outer surface of the gas protective sleeve and the conductive nozzle at the front end of the welding gun very quickly, and the gas flow channel of the gas protective sleeve can be blocked after a period of time of accumulation, so that the welding quality is influenced.
In order to solve the influence of welding spatter, a reamer type cleaning method is mostly adopted at present, a reamer is inserted into a gap between a welding gun gas protective sleeve and a conductive nozzle to rotate, and adhered welding slag is strongly scraped by using a blade surface of the reamer.
The reamer type gun cleaning method requires devices such as a driving motor for driving a reamer to rotate, a starting device, a control system, a fixed support, a welding slag collector and the like, and is complex in structure, high in cost and inconvenient to maintain.
Especially, the reamer cleaning device needs a welding gun to accurately align the position of the reamer, needs careful programming alignment in a robot welding system, and has various uncertainties in the production process, the deviation of a welding gun assembly, the change of the position of the reamer cleaning device and the abrasion deformation of the reamer, which all affect the gun cleaning effect and even cause the damage of parts in the powerful gun cleaning process.
The reamer type gun cleaner can only design the cutter diameter according to the minimum gap of the nozzle port due to the size of a reamer, and cannot achieve a good cleaning effect on a conical nozzle and a variable-section nozzle.
Because the welding spatter has high energy and is sometimes firmly adhered to the surface of the nozzle, the reamer is difficult to peel even if the reamer is strongly cleaned, and the reamer is even worn and the welding gun is damaged.
The reamer type gun cleaner has a complex structure, mostly needs a circuit and a gas circuit control system, and has higher manufacturing cost and maintenance cost.
Disclosure of Invention
The embodiment of the application provides a welding gun cleaning device to solve the problem that attachments on the inner and outer surfaces of a gas protective sleeve at the front end of a welding gun and a conductive nozzle in the related art are not easy to clean.
In a first aspect, a welding gun cleaning device is provided, comprising:
the cleaning device comprises a shell, a cleaning device and a cleaning device, wherein an accommodating cavity for accommodating cleaning pills is formed in the shell, and a jet orifice communicated with the accommodating cavity is formed in the shell; and the number of the first and second groups,
and the pill driving mechanism is connected with the shell and is used for driving the cleaning pills in the accommodating cavity to be sprayed out of the jet orifice so as to enable the cleaning pills to impact and clean welding slag adhered to the surface of the welding nozzle.
In some embodiments, the pellet drive mechanism is provided as a high pressure gas injection mechanism;
the high-pressure gas injection mechanism comprises a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source;
the shell is provided with an air inlet communicated with the accommodating cavity, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet.
In some embodiments, the air inlet and the injection port are respectively disposed at two opposite ends of the housing.
In some embodiments, the receiving cavity of the housing is directly used for containing cleaning pellets, and the air inlet and the injection port are respectively located at two sides of the cleaning pellets during the operation of the welding gun cleaning device.
In some embodiments, the injection port is for direct interfacing with an end of a welding nozzle; alternatively, the first and second electrodes may be,
the injection port is used for accommodating the end part of the welding nozzle.
In some embodiments, the housing further defines a feeding channel communicating with the accommodating cavity, and the feeding channel is used for conveying the cleaning pellets into the accommodating cavity.
In some embodiments, the feed passage is disposed in a sidewall of the housing between the inlet port and the injection port; alternatively, the first and second electrodes may be,
the feeding channel and the air inlet are arranged at the same end of the shell; alternatively, the first and second electrodes may be,
the feed passage and the injection port are disposed at the same end of the housing.
In some embodiments, the air inlet and the injection port are arranged at the same end of the shell, and the accommodating cavity of the shell is directly used for accommodating cleaning pellets; alternatively, the first and second electrodes may be,
the air inlet and the jet orifice are arranged at the same end of the shell, the shell is further provided with a feeding channel communicated with the accommodating cavity, and the feeding channel is used for conveying and cleaning the pellets to the accommodating cavity.
In some embodiments, the injection port is disposed at an end of the housing, and the air inlet is disposed at a side of the housing.
In some embodiments, the receiving cavity of the housing is used directly to hold cleaning pellets; alternatively, the first and second electrodes may be,
the shell is further provided with a feeding channel communicated with the containing cavity, and the feeding channel is used for conveying cleaning pellets to the containing cavity.
The beneficial effect that technical scheme that this application provided brought includes: the cleaning pellets are sprayed into the gas protective sleeve at the front end of the welding gun through the pellet driving mechanism, the cleaning pellets collide with the surfaces of the inner part and the outer part of the protective sleeve, and welding slag attached to the surfaces of the parts is knocked down, so that the aim of cleaning the welding slag of the welding gun is fulfilled.
The embodiment of the application provides a welding gun cleaning device, because inside the pill actuating mechanism will clear up the gaseous protective sheath that the pill sprays into the welder front end, the striking takes place for the surface of interior part in clearance pill and the protective sheath, consequently, knocks down the welding slag that adheres to on part surface, reaches the purpose of clearance welder welding slag to be applicable to the all kinds of welder gaseous protective sheaths of different shapes. The device is simple in structure and low in manufacturing cost, avoids a large amount of maintenance work, and ensures long-time stable and reliable operation of equipment. The gun cleaning time is short, the effect is good, the gun cleaning interval period is long, the service life of the nozzle component is prolonged, and the production efficiency can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a torch cleaning apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a second embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional view of a welding gun cleaning device according to a third embodiment of the present application;
fig. 4 is a schematic cross-sectional view of a welding gun cleaning device according to a fourth embodiment of the present application:
fig. 5 is a schematic cross-sectional view of a welding gun cleaning device according to a fifth embodiment of the present disclosure.
In the figure: 1. a housing; 11. an accommodating chamber; 12. a feed channel; 13. an ejection port; 14. an air inlet; 15. an annular chamber; 16. an air intake passage; 2. and (4) welding the nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a welding gun cleaning device, which can solve the problem that attachments on the inner surface and the outer surface of a gas protective sleeve at the front end of a welding gun and a conductive nozzle are not easy to clean.
Example one
As shown in fig. 1, the present embodiment provides a welding gun cleaning device, which includes a housing 1 and a pellet driving device, wherein a containing cavity 11 for containing cleaning pellets is formed in the housing 1, a feeding channel 12 communicated with the containing cavity 11 is formed on the housing 1, the feeding channel 12 is used for conveying the cleaning pellets into the containing cavity 11, and a jet port 13 communicated with the containing cavity 11 is formed on the housing 1. The pellet driving mechanism is connected with the shell 1 and is used for driving the cleaning pellets in the accommodating cavity 11 to be sprayed out of the spraying opening 13 so that the cleaning pellets can impact and clean welding slag adhered on the surface of the welding nozzle 2.
Optionally, the pellet driving mechanism is provided as a high-pressure gas injection mechanism, and the high-pressure gas injection mechanism includes a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source. The shell 1 is provided with an air inlet 14 communicated with the accommodating cavity 11, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet 14.
Alternatively, the air inlet 14 and the injection port 13 are respectively disposed at opposite ends of the housing 1, and the feed passage 12 is disposed on a side wall of the housing 1 between the air inlet 14 and the injection port 13.
Alternatively, the injection port 13 is adapted to directly interface with the end of the welding nozzle 2 and the cleaning pellet is injected out of the torch cleaning device into between the welding nozzle 2 and the protective sheath. Alternatively, the injection port 13 is used to receive the end of the welding nozzle 2, i.e. the end of the welding nozzle 2 extends into the injection port 13, and the cleaning pellets do not need to be injected out of the welding gun cleaning device.
This application drives clearance pill from jet 13 blowout through high-pressure gas, makes and strikes with the internal surface of welding nozzle 2 surface and protective sheath, reaches the purpose of cleaing away the welding slag of 2 surface adhesion of welding nozzle. A feed channel 12 is additionally provided for feeding cleaning pellets into the receiving chamber 11, ensuring that there are sufficient cleaning pellets to complete the cleaning process.
In addition, since the injection port 13 is directly abutted against the end of the welding nozzle 2, the end surface structure of the injection port 13 is simple. In addition, the end part of the welding nozzle 2 can also extend into the jet opening 13, so that cleaning pellets can enter the welding nozzle 2 and the protective sleeve to clean welding slag.
Example two
As shown in fig. 2, the present embodiment also provides a welding gun cleaning device, which includes a housing 1 and a pellet driving device, wherein a housing cavity 11 for housing cleaning pellets is formed in the housing 1, and a jet port 13 communicating with the housing cavity 11 is provided on the housing 1. The shell 1 is further provided with a feeding channel 12 communicated with the accommodating cavity 11, and the feeding channel 12 is used for conveying cleaning pellets to the accommodating cavity 11. The feed passage 12 and the injection port 13 are provided at opposite ends of the housing 1, respectively. The pellet driving mechanism is connected with the shell 1 and is used for driving the cleaning pellets in the accommodating cavity 11 to be sprayed out of the spraying opening 13 so that the cleaning pellets can impact and clean welding slag adhered on the surface of the welding nozzle 2.
Optionally, the pill driving mechanism is a high-pressure gas injection mechanism, the high-pressure gas injection mechanism includes a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source, the housing 1 is provided with a gas inlet 14 communicated with the accommodating cavity 11, and a gas outlet of the high-pressure gas pipe is correspondingly communicated with the gas inlet 14.
Alternatively, the injection port 13 is provided at an end portion of the housing 1, and the intake port 14 is provided at a side surface of the housing 1. In addition, an annular chamber 15 and an air inlet channel 16 are arranged between the air inlet 14 and the accommodating cavity 11, wherein the annular chamber 15 is connected with the air inlet 14, one end of the air inlet channel 16 is connected with the annular chamber 15, the other end of the air inlet channel 16 is connected with the accommodating cavity 11, and the direction of the air inlet channel 16 is the direction from the feeding channel 12 to the jet orifice 13, so that the flowing direction of high-pressure gas entering the accommodating cavity 11 from the air inlet 14 in the accommodating cavity 11 is the direction from the feeding channel 12 to the jet orifice 13, and cleaning pellets are driven to be sprayed out from the jet orifice 13. In addition, the annular chamber 15 makes it possible to make the high-pressure gas entering the housing chamber 11 more uniform.
Alternatively, the injection port 13 is adapted to directly interface with the end of the welding nozzle 2 and the cleaning pellet is injected out of the torch cleaning device into between the welding nozzle 2 and the protective sheath. Alternatively, the injection port 13 is used to receive the end of the welding nozzle 2, i.e. the end of the welding nozzle 2 extends into the injection port 13, and the cleaning pellets do not need to be injected out of the welding gun cleaning device.
In the application, the annular chamber 15 and the air inlet channel 16 are arranged between the air inlet 14 and the accommodating cavity 11, so that high-pressure air input through a certain air inlet 14 can form high-pressure air flow in the jet opening 13 in an all-around manner, and the direction of the high-pressure air flow is ensured to be the direction from the feeding channel 12 to the jet opening 13, and the movement direction of the pills is clearly cleaned.
EXAMPLE III
As shown in fig. 3, the present embodiment also provides a torch cleaning apparatus including a housing 1 and a pellet driving apparatus. An accommodating cavity 11 for accommodating cleaning pellets is formed in the housing 1, and a jet port 13 communicating with the accommodating cavity 11 is provided on the housing 1. The containing cavity 11 of the shell 1 is directly used for containing cleaning pills, and the jet port 13 is provided with a pipeline extending into the cleaning pills in the containing cavity 11. The pellet driving mechanism is connected with the shell 1 and is used for driving the cleaning pellets in the accommodating cavity 11 to be sprayed out of the spraying opening 13 so that the cleaning pellets can impact and clean welding slag adhered on the surface of the welding nozzle 2.
Optionally, the pellet driving mechanism is provided as a high-pressure gas injection mechanism, and the high-pressure gas injection mechanism includes a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source. The shell 1 is provided with an air inlet 14 communicated with the accommodating cavity 11, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet 14.
Alternatively, the intake port 14 and the injection port 13 are provided at the same end of the housing 1.
Alternatively, the injection port 13 is adapted to directly interface with the end of the welding nozzle 2 and the cleaning pellet is injected out of the torch cleaning device into between the welding nozzle 2 and the protective sheath. Alternatively, the injection port 13 is used to receive the end of the welding nozzle 2, i.e. the end of the welding nozzle 2 extends into the injection port 13, and the cleaning pellets do not need to be injected out of the welding gun cleaning device.
In the application, the air inlet 14 and the jet orifice 13 are arranged at the same end of the shell 1, so that the volume of the welding gun cleaning device is smaller. And meanwhile, the accommodating cavity 11 is directly used for accommodating cleaning pills, and each cleaning pill can be fully utilized.
Example four
As shown in fig. 4, the present embodiment also provides a torch cleaning apparatus including a housing 1 and a pellet driving apparatus. An accommodating cavity 11 for accommodating cleaning pellets is formed in the housing 1, and a jet port 13 communicating with the accommodating cavity 11 is provided on the housing 1. The pellet driving mechanism is connected with the shell 1 and is used for driving the cleaning pellets in the accommodating cavity 11 to be sprayed out of the spraying opening 13 so that the cleaning pellets can impact and clean welding slag adhered on the surface of the welding nozzle 2.
Optionally, the pellet driving mechanism is provided as a high-pressure gas injection mechanism, and the high-pressure gas injection mechanism includes a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source. The shell 1 is provided with an air inlet 14 communicated with the accommodating cavity 11, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet 14.
Alternatively, the intake port 14 and the injection port 13 are provided at opposite ends of the housing 1, respectively. The accommodating cavity 11 of the shell 1 is directly used for accommodating cleaning pellets, and the air inlet 14 and the jet port 13 are respectively positioned at two sides of the cleaning pellets in the working process of the welding gun cleaning device. The cleaning pellets can be directly ejected through the ejection port 13 but cannot enter the air inlet 14, and therefore a pellet intercepting means is provided at the junction of the air inlet 14 and the accommodating chamber 11, but does not obstruct the passage of the high-pressure gas.
Alternatively, the injection port 13 is adapted to directly interface with the end of the welding nozzle 2 and the cleaning pellet is injected out of the torch cleaning device into between the welding nozzle 2 and the protective sheath. Alternatively, the injection port 13 is used to receive the end of the welding nozzle 2, i.e. the end of the welding nozzle 2 extends into the injection port 13, and the cleaning pellets do not need to be injected out of the welding gun cleaning device.
In this application, hold chamber 11 and directly be used for splendid attire clearance pellet, and air inlet 14 and jet 13 locate the both ends that casing 1 is relative respectively, and air inlet 14 and jet 13 are located the both sides of clearance pellet respectively, and the structure is simpler.
EXAMPLE five
As shown in fig. 5, the present embodiment also provides a torch cleaning apparatus including a housing 1 and a pellet driving apparatus. An accommodating cavity 11 for accommodating cleaning pellets is formed in the housing 1, and a jet port 13 communicating with the accommodating cavity 11 is provided on the housing 1. The pellet driving mechanism is connected with the shell 1 and is used for driving the cleaning pellets in the accommodating cavity 11 to be sprayed out of the spraying opening 13 so that the cleaning pellets can impact and clean welding slag adhered on the surface of the welding nozzle 2.
Optionally, the pellet driving mechanism is provided as a high-pressure gas injection mechanism, and the high-pressure gas injection mechanism includes a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source. The shell 1 is provided with an air inlet 14 communicated with the accommodating cavity 11, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet 14.
Alternatively, the intake port 14 and the injection port 13 are provided at opposite ends of the housing 1, respectively. The accommodating cavity 11 of the shell 1 is directly used for accommodating cleaning pellets, and the air inlet 14 and the jet port 13 are respectively positioned at two sides of the cleaning pellets in the working process of the welding gun cleaning device. The cleaning pellets can be directly ejected through the ejection port 13 but cannot enter the air inlet 14, and therefore a pellet intercepting means is provided at the junction of the air inlet 14 and the accommodating chamber 11, but does not obstruct the passage of the high-pressure gas.
Alternatively, the injection port 13 is adapted to directly interface with the end of the welding nozzle 2 and the cleaning pellet is injected out of the torch cleaning device into between the welding nozzle 2 and the protective sheath. Cleaning the pellets does not require ejection from the torch cleaning device.
In this application, hold chamber 11 and directly be used for splendid attire clearance pellet, and air inlet 14 and jet 13 locate the both ends that casing 1 is relative respectively, and air inlet 14 and jet 13 are located the both sides of clearance pellet respectively, and the structure is simpler.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A welding gun cleaning device, comprising:
the cleaning device comprises a shell, a cleaning device and a cleaning device, wherein an accommodating cavity for accommodating cleaning pills is formed in the shell, and a jet orifice communicated with the accommodating cavity is formed in the shell; and the number of the first and second groups,
and the pill driving mechanism is connected with the shell and is used for driving the cleaning pills in the accommodating cavity to be sprayed out of the jet orifice so as to enable the cleaning pills to impact and clean welding slag adhered to the surface of the welding nozzle.
2. The torch cleaning apparatus of claim 1, wherein the pellet drive mechanism is provided as a high pressure gas injection mechanism;
the high-pressure gas injection mechanism comprises a high-pressure gas source and a high-pressure gas pipe communicated with the high-pressure gas source;
the shell is provided with an air inlet communicated with the accommodating cavity, and an air outlet of the high-pressure air pipe is correspondingly communicated with the air inlet.
3. The torch cleaning apparatus of claim 2, wherein the gas inlet and the ejection port are respectively provided at opposite ends of the housing.
4. The torch cleaning device of claim 3, wherein the receiving cavity of the housing is directly configured to receive the cleaning pellets, and the gas inlet and the ejection port are located on opposite sides of the cleaning pellets during operation of the torch cleaning device.
5. The torch cleaning apparatus of claim 4, wherein the ejection port is adapted to directly interface with an end of a welding nozzle; alternatively, the first and second electrodes may be,
the injection port is used for accommodating the end part of the welding nozzle.
6. The torch cleaning device according to claim 3, wherein the housing further defines a feed passage communicating with the receiving chamber, the feed passage being configured to convey the cleaning pellets into the receiving chamber.
7. The torch cleaning apparatus of claim 6, wherein the feed passage is provided on a side wall of the housing between the inlet port and the ejection port; alternatively, the first and second electrodes may be,
the feeding channel and the air inlet are arranged at the same end of the shell; alternatively, the first and second electrodes may be,
the feed passage and the injection port are disposed at the same end of the housing.
8. The torch cleaning device of claim 2, wherein the gas inlet and the ejection port are located at the same end of the housing, and the receiving cavity of the housing is directly used for containing cleaning pellets; alternatively, the first and second electrodes may be,
the air inlet and the jet orifice are arranged at the same end of the shell, the shell is further provided with a feeding channel communicated with the accommodating cavity, and the feeding channel is used for conveying and cleaning the pellets to the accommodating cavity.
9. The torch cleaning apparatus of claim 2, wherein the injection port is provided at an end of the housing, and the gas inlet is provided at a side of the housing.
10. The torch cleaning apparatus of claim 9, wherein the receiving chamber of the housing is adapted to directly hold cleaning pellets; alternatively, the first and second electrodes may be,
the shell is further provided with a feeding channel communicated with the containing cavity, and the feeding channel is used for conveying cleaning pellets to the containing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022402810.3U CN214212555U (en) | 2020-10-26 | 2020-10-26 | Welding gun cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022402810.3U CN214212555U (en) | 2020-10-26 | 2020-10-26 | Welding gun cleaning device |
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| CN214212555U true CN214212555U (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211198A (en) * | 2021-12-21 | 2022-03-22 | 山东瑞佰拓自动化设备有限公司 | Cyclone sand blasting type welding slag cleaning equipment |
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2020
- 2020-10-26 CN CN202022402810.3U patent/CN214212555U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211198A (en) * | 2021-12-21 | 2022-03-22 | 山东瑞佰拓自动化设备有限公司 | Cyclone sand blasting type welding slag cleaning equipment |
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