CN117921271B - Welding equipment for processing control cabinet - Google Patents
Welding equipment for processing control cabinet Download PDFInfo
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- CN117921271B CN117921271B CN202410317139.2A CN202410317139A CN117921271B CN 117921271 B CN117921271 B CN 117921271B CN 202410317139 A CN202410317139 A CN 202410317139A CN 117921271 B CN117921271 B CN 117921271B
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- 238000003466 welding Methods 0.000 title claims abstract description 61
- 238000001179 sorption measurement Methods 0.000 claims description 41
- 238000003825 pressing Methods 0.000 claims description 14
- 230000007306 turnover Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Butt Welding And Welding Of Specific Article (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to welding equipment for processing a control cabinet, which is applied to the technical field of welding tools.
Description
Technical Field
The invention relates to welding equipment, in particular to welding equipment for processing a control cabinet, which is applied to the technical field of welding tools.
Background
Most of the shells of the existing electric control cabinets are formed by splicing a plurality of metal panels into square frames in an electric welding mode, before welding processing is carried out on edges of the square frames, welding personnel need to fix the metal panels forming the cabinet body on a welding platform, the spliced cabinet body needs to be kept in a stable state when welding is guaranteed, therefore the welding personnel need to clamp the metal panels through a tool, and the edge portions of two adjacent metal panels are tightly attached to each other, so that the electric control cabinet is convenient to weld.
The invention discloses a welding device for a power distribution cabinet body, which can realize sequential switching of edges to be processed of a frame by controlling horizontal movement of a lifting frame, can achieve the aim of improving the welding efficiency of the power distribution cabinet body while simplifying the running procedure of equipment, and can maintain a stable state by controlling vertical movement of a rotary sleeve when two resisting frames are abutted against the end face of the frame, thereby being beneficial to accurate processing of the edges of the frame by an electric welding machine.
The cabinet plates are required to be assembled in advance before welding, the splicing operation amount of the cabinet plates is large, the welding efficiency is affected, meanwhile, in the welding process, the cabinet plates which are originally clamped and fixed are required to be sequentially switched and adjusted according to the positions of welding guns, and the plate frames which are originally fixed are easy to loosen in the rotating and adjusting process, so that the welding effect of the cabinet body is affected.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problems that cabinet plates are required to be assembled in advance before welding, the splicing operation amount of the cabinet plates is large, the welding efficiency is influenced, the spliced cabinet plates are easy to loosen when the welding position is adjusted, and the welding effect of a control cabinet is influenced.
In order to solve the problems, the invention provides welding equipment for processing a control cabinet, which comprises a base, wherein two ends of the base are fixedly connected with longitudinal sliding rails, two ends of the two groups of longitudinal sliding rails are movably connected with transverse sliding rails, the tops of the transverse sliding rails are slidably connected with a tooling frame which is arranged in an L shape, the two groups of tooling frames are arranged in a central symmetry manner, the tops of the long ends of the tooling frames are slidably connected with long frame plates, the tops of the short ends of the tooling frames are slidably connected with short frame plates, the long frame plates and the short frame plates of the cabinet are respectively placed at two ends of the inner side of the tooling frame, the long frame plates correspond to the long frame plates of the cabinet, the short frame plates correspond to the short frame plates of the cabinet, and a welding gun manipulator is movably connected to the outer part of the short end of the tooling frame; the middle part of long frame board articulates there is a plurality of equidistance movable adsorption block of arranging, and the inside fixedly connected with of short frame board is fixed to adsorb the piece, and movable adsorption block and fixed adsorption block adsorb with cabinet long board and cabinet short board respectively and be connected, and frock frame's bending part fixedly connected with stud, stud middle part fixedly connected with cabinet board cylinder, cabinet board cylinder's output respectively with long frame board and short frame board fixed connection.
In the welding equipment for processing the control cabinet, the long frame plate and the short frame plate are used for driving the automatic splicing of the long cabinet plate and the short cabinet plate, so that the splicing efficiency of the cabinet body is effectively improved, the first step of welding combination is carried out, the butt joint adjustment of the longitudinal sliding rail and the transverse sliding rail to the tool frame is subsequently reused, the secondary splicing welding between the cabinet plate combinations is carried out, the procedure of splicing and welding at the same time is realized, the loosening caused by splicing of the cabinet plates in advance is effectively avoided, and the welding efficiency and quality are effectively improved.
As a further improvement of the application, the middle part of the long frame plate is hinged with five movable adsorption blocks which are equidistantly arranged, the middle parts of the movable adsorption blocks and the fixed adsorption blocks are embedded with magnet blocks, and the movable adsorption blocks and the fixed adsorption blocks are utilized to adsorb the long cabinet plate and the short cabinet plate.
As a further improvement of the application, the hinged ends of the five movable adsorption blocks are connected in series with a rotating shaft, the middle part of the rotating shaft is fixedly connected with a swing arm, the swing arm corresponds to the rotating shaft vertically, the rotating shaft is utilized to realize synchronous rotation of the five movable adsorption blocks, and the swing arm is convenient for the rotating operation of the rotating shaft.
As a further improvement of the application, the top of the long frame plate is hinged with a turnover cylinder, the output end of the turnover cylinder is rotationally connected with the swing arm, and the swing arm is pushed by the turnover cylinder, so that the electric control operation of the rotation shaft is facilitated.
As a further improvement of the application, the extension plate is connected to the outer part of the long end of the tool frame in a sliding manner, the end of the extension plate, which is far away from the tool frame, is fixedly connected with the end block, the end block is in adsorption contact with the long cabinet plate, and the fixing effect of the cabinet plate is improved by utilizing the end block on the extension plate.
In addition to the improvement of the application, the bottom of the end block is fixedly connected with a sliding cushion block which is in sliding connection with the transverse sliding rail so as to facilitate the end block to slide on the transverse sliding rail.
In addition to the improvement of the application, the bottom of the short end of the tooling frame is provided with a frame groove which is in sliding connection with the slide block, so that movable splicing between the end block and the tooling frame is realized, and the tooling frame is convenient to drive the re-splicing combination between the welding combinations.
As a further improvement of the application, the outer part of the end block is sleeved with a jacking column, the front end of the jacking column is in contact correspondence with the short end of the tool frame, and the jacking column is abutted against the tool frame to realize buffering before the end block is in contact with the tool frame.
In addition to the improvement of the application, the top of the end block is hinged with a clamping bracket, the bottom end of the clamping bracket is hinged with the rear end of the jacking column, and when the jacking column is collided to move backwards, the clamping bracket is driven to automatically turn over.
In addition to the improvement of the application, the top end of the clamping support is rotatably connected with the clamping pressing shaft, the clamping pressing shaft is in pressing contact with the top of the long cabinet plate, and when the clamping support is in overturning motion, the clamping pressing shaft is used for pressing and fastening the top of the long cabinet plate, so that the welding combination after splicing is fixed, and the welding quality is further effectively improved.
In summary, the long cabinet plate and the short cabinet plate are respectively placed at two ends of the tool frame, the long cabinet plate and the short cabinet plate are adsorbed and fixed by the long cabinet plate and the short cabinet plate, the long cabinet plate and the short cabinet plate are pulled by the cabinet plate cylinder to be close to each other, automatic splicing of the long cabinet plate and the short cabinet plate is achieved, the splicing efficiency of the cabinet body is effectively improved, further, the adjacent long cabinet plate and the adjacent short cabinet plate are welded and combined in one step, the butt joint adjustment of the longitudinal sliding rail and the transverse sliding rail on the tool frame is subsequently utilized, re-splicing welding between the cabinet plate combinations is carried out, the procedure of splicing and welding at the same time is achieved, looseness caused by early splicing of the cabinet plates is effectively avoided, and the welding efficiency and quality are effectively improved.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present application;
Fig. 2 is a perspective view showing a base according to a first embodiment of the present application;
FIG. 3 is a perspective view of a tooling frame according to a first embodiment of the present application;
FIG. 4 is a front perspective view of the long and short frame plates according to the first embodiment of the present application;
FIG. 5 is a rear perspective view of the long and short frame plates according to the first embodiment of the present application;
FIG. 6 is a side cross-sectional view of a movable adsorption block according to a first embodiment of the present application;
FIG. 7 is a diagram showing the overturning motion of the movable adsorption block according to the first embodiment of the present application;
FIG. 8 is a bottom enlarged view of a second embodiment of an end block of the present application;
fig. 9 is a perspective view showing a structure of an extension board according to a second embodiment of the present application;
Fig. 10 is an illustration of a long plate of a clamping press shaft clamping cabinet according to a second embodiment of the present application.
The reference numerals in the figures illustrate:
1. A base; 101. a longitudinal slide rail; 102. a transverse slide rail; 2. a tool frame; 201. a long frame plate; 202. a short frame plate; 203. a movable adsorption block; 204. fixing the adsorption block; 205. a peg; 206. a cabinet plate cylinder; 3. a cabinet long plate; 4. a cabinet short plate; 5. a welding gun manipulator; 6. a rotation shaft; 601. swing arms; 602. a turnover cylinder; 7. an extension plate; 701. an end block; 702. a slide pad; 703. a frame groove; 704. a top column; 705. a clamping bracket; 706. clamping the pressing shaft.
Detailed Description
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
1-2 show, a welding device for processing a control cabinet, which comprises a base 1, wherein two ends of the base 1 are fixedly connected with longitudinal sliding rails 101, two ends of each longitudinal sliding rail 101 are movably connected with transverse sliding rails 102, the tops of the transverse sliding rails 102 are slidably connected with a tool frame 2, the tool frame 2 is in an L-shaped arrangement, the two sets of tool frames 2 are arranged in a central symmetry manner, the tops of the long ends of the tool frames 2 are slidably connected with long frame plates 201, the tops of the short ends of the tool frames 2 are slidably connected with short frame plates 202, the two ends of the inner side of the tool frames 2 are respectively provided with a cabinet long plate 3 and a cabinet short plate 4, the long frame plates 201 correspond to the cabinet long plate 3, the short frame plates 202 correspond to the cabinet short plate 4, and the short ends of the tool frames 2 are externally movably connected with welding gun manipulators 5;
When the welding of the control cabinet is carried out, the cabinet long plate 3 and the cabinet short plate 4 which form the cabinet body are respectively placed on the inner sides of the long frame plate 201 and the short frame plate 202, the long frame plate 201 and the short frame plate 202 drive the cabinet long plate 3 to be spliced with the cabinet short plate 4, the welding gun manipulator 5 welds edges, so that the welding combination of the cabinet long plate 3 and the cabinet short plate 4 is carried out, the butt joint adjustment of the longitudinal sliding rail 101 and the transverse sliding rail 102 to the tool frame 2 is subsequently recycled, the secondary splice welding between the cabinet plate combinations is carried out, the procedure of splicing while welding is realized, looseness brought by splicing of the cabinet plates in advance is effectively avoided, and the welding efficiency and quality are effectively improved.
Fig. 3-5 show that five movable adsorption blocks 203 which are equidistantly arranged are hinged in the middle of a long frame plate 201, a fixed adsorption block 204 is fixedly connected in the short frame plate 202, the movable adsorption blocks 203 and the fixed adsorption blocks 204 are respectively in adsorption connection with a long cabinet plate 3 and a short cabinet plate 4, magnet blocks are inlaid in the middle of the movable adsorption blocks 203 and the fixed adsorption blocks 204, the long cabinet plate 3 and the short cabinet plate 4 are fixed by utilizing the magnets through the movable adsorption blocks 203 and the fixed adsorption blocks 204, a bolt 205 is fixedly connected to the bending part of a tool frame 2, a cabinet plate cylinder 206 is fixedly connected in the middle of the bolt 205, and the output end of the cabinet plate cylinder 206 is respectively fixedly connected with the long frame plate 201 and the short frame plate 202;
When the long cabinet plate 3 and the short cabinet plate 4 are respectively placed on the inner sides of the long frame plate 201 and the short cabinet plate 202, the movable adsorption block 203 adsorbs and fixes the long cabinet plate 3, the fixed adsorption block 204 adsorbs and fixes the short cabinet plate 4, and then the long cabinet plate 201 and the short cabinet plate 202 are pulled to be close to each other by the cabinet plate cylinder 206 on the stud 205, so that automatic splicing of the long cabinet plate 3 and the short cabinet plate 4 is realized, the splicing workload of welding personnel to the cabinet plate is effectively reduced, and the welding efficiency of the control cabinet is effectively improved.
Fig. 5-7 show that the hinged ends of the five movable adsorption blocks 203 are connected in series with a rotating shaft 6, the middle part of the rotating shaft 6 is fixedly connected with a swing arm 601, the swing arm 601 vertically corresponds to the rotating shaft 6, the rotating shaft 6 is utilized to realize synchronous rotation of the five movable adsorption blocks 203, the swing arm 601 is convenient for the rotating operation of the rotating shaft 6, the top of the long frame plate 201 is hinged with a turnover cylinder 602, the output end of the turnover cylinder 602 is rotationally connected with the swing arm 601, and the swing arm 601 is pushed by the turnover cylinder 602, so that the electric control operation of the rotating shaft 6 is facilitated;
After the welding of the control cabinet is finished, as shown in fig. 7, a worker operates the overturning cylinder 602 to push the swing arm 601, thereby driving the rotating shaft 6 to rotate, driving the movable adsorption block 203 to rotate and separate the long plate 3 of the control cabinet, thereby reducing the adsorption fixation of the control cabinet and further facilitating the taking out of the control cabinet.
Second embodiment:
In the present embodiment, the extension plate 7 is mainly added as compared with the first embodiment, and the specific structure is as follows, and the other structures are the same as those in the first embodiment.
Fig. 8-10 show that the long end of the tool frame 2 is externally and slidably connected with an extension plate 7, one end of the extension plate 7, far away from the tool frame 2, is fixedly connected with an end block 701, the end block 701 is in adsorption contact with the cabinet long plate 3, the fixing effect of the cabinet plate is improved by utilizing the end block 701 on the extension plate 7, the bottom of the end block 701 is fixedly connected with a slide block 702, the slide block 702 is slidably connected with a transverse slide rail 102, the end block 701 is conveniently slid on the transverse slide rail 102, a frame groove 703 is formed in the bottom of the short end of the tool frame 2, the frame groove 703 is slidably connected with the slide block 702, movable splicing between the end block 701 and the tool frame 2 is realized, and the tool frame 2 is conveniently driven to carry out splicing combination again between welding combinations;
Compared with the first embodiment, the long end of the tooling frame 2 is prolonged by using the extension plate 7 to fix the cabinet long plate 3, the magnet is also arranged in the end block 701, the unwelded end of the cabinet long plate 3 is fixed, the end block 701 slides on the transverse sliding rail 102 by using the sliding cushion block 702, and meanwhile, the sliding cushion block 702 slides on the frame groove 703 at the bottom of the short end of the tooling frame 2, so that two groups of tooling frames 2 are connected by the sliding cushion block 702, and the tooling frame 2 is convenient to drive the welded combination to splice again.
Fig. 9-10 show that a jack post 704 is sleeved outside the end block 701, the front end of the jack post 704 corresponds to the short end contact of the tool frame 2, the jack post 704 is utilized to abut against the tool frame 2, buffering before the end block 701 contacts with the tool frame 2 is achieved, the top of the end block 701 is hinged with a clamping bracket 705, the bottom end of the clamping bracket 705 is hinged with the rear end of the jack post 704, when the jack post 704 is abutted to move backwards, the clamping bracket 705 is driven to automatically overturn, the top end of the clamping bracket 705 is rotationally connected with a clamping pressing shaft 706, the clamping pressing shaft 706 is in pressing contact with the top of the long cabinet plate 3, and as shown in fig. 10, the clamping bracket 705 is in overturning movement, the top of the long cabinet plate 3 is pressed and fixed by the clamping pressing shaft 706, so that welding combination after splicing is fixed, and welding quality is further effectively improved;
Compared with the first embodiment, after the cabinet long plate 3 and the cabinet short plate 4 are primarily welded, the tool frame 2 drives the welded combination, and when the combination is spliced again, the jacking columns 704 on the end blocks 701 are in first-step contact with the short ends of the tool frame 2, the jacking columns 704 are compressed and contracted, so that the clamping support 705 is pushed to perform overturning movement, the clamping pressing shaft 706 at the top of the clamping support 705 clamps and fixes the cabinet long plate 3, and therefore the spliced welded combination is fixed, and further the welding quality is effectively improved.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (4)
1. Welding equipment for processing of control cabinet, its characterized in that: the welding tool comprises a base (1), wherein two ends of the base (1) are fixedly connected with longitudinal sliding rails (101), two groups of longitudinal sliding rails (101) are respectively and movably connected with transverse sliding rails (102), the tops of the transverse sliding rails (102) are slidably connected with a tool frame (2), the tool frame (2) is in an L-shaped arrangement, the two groups of tool frames (2) are arranged in a central symmetry mode, the tops of the long ends of the tool frames (2) are slidably connected with long frame plates (201), the tops of the short ends of the tool frames (2) are slidably connected with short frame plates (202), the long frame plates (3) and the short frame plates (4) of a cabinet are respectively arranged at the two ends of the inner side of the tool frames (2), the long frame plates (201) correspond to the long frame plates (3) of the cabinet, the short frame plates (202) correspond to the short frame plates (4), and the short ends of the tool frames (2) are externally and movably connected with welding guns (5) of the welding guns.
The middle part of the long frame plate (201) is hinged with a plurality of movable adsorption blocks (203) which are distributed at equal intervals, the inside of the short frame plate (202) is fixedly connected with a fixed adsorption block (204), the movable adsorption block (203) and the fixed adsorption block (204) are respectively in adsorption connection with the long cabinet plate (3) and the short cabinet plate (4), the bending part of the tool frame (2) is fixedly connected with a bolt (205), the middle part of the bolt (205) is fixedly connected with a cabinet plate cylinder (206), and the output end of the cabinet plate cylinder (206) is respectively fixedly connected with the long frame plate (201) and the short frame plate (202);
The long end of the tool frame (2) is externally connected with an extension plate (7) in a sliding manner, one end, far away from the tool frame (2), of the extension plate (7) is fixedly connected with an end block (701), and the end block (701) is in adsorption contact with the cabinet long plate (3); the bottom of the end block (701) is fixedly connected with a slide block (702), and the slide block (702) is in sliding connection with the transverse sliding rail (102); a frame groove (703) is formed in the bottom of the short end of the tool frame (2), and the frame groove (703) is in sliding connection with the slide pad (702); a jacking column (704) is sleeved outside the end block (701), and the front end of the jacking column (704) corresponds to the short-end contact of the tool frame (2); the top of the end block (701) is hinged with a clamping bracket (705), and the bottom end of the clamping bracket (705) is hinged with the rear end of the jacking column (704); the top end of the clamping support (705) is rotatably connected with a clamping pressing shaft (706), and the clamping pressing shaft (706) is in pressing contact with the top of the cabinet long plate (3).
2. The welding equipment for machining a control cabinet according to claim 1, wherein: the middle part of long framed board (201) articulates has five movable adsorption blocks (203) that the equidistance was arranged, the middle part of movable adsorption block (203) and fixed adsorption block (204) is inlayed and is had the magnet piece.
3. The welding equipment for processing a control cabinet according to claim 2, wherein: the hinge ends of the five movable adsorption blocks (203) are connected in series with a rotating shaft (6), the middle part of the rotating shaft (6) is fixedly connected with a swing arm (601), and the swing arm (601) corresponds to the rotating shaft (6) vertically.
4. A welding apparatus for control cabinet processing according to claim 3, wherein: the top of the long frame plate (201) is hinged with a turnover cylinder (602), and the output end of the turnover cylinder (602) is rotationally connected with a swing arm (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410317139.2A CN117921271B (en) | 2024-03-20 | 2024-03-20 | Welding equipment for processing control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410317139.2A CN117921271B (en) | 2024-03-20 | 2024-03-20 | Welding equipment for processing control cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117921271A CN117921271A (en) | 2024-04-26 |
| CN117921271B true CN117921271B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410317139.2A Active CN117921271B (en) | 2024-03-20 | 2024-03-20 | Welding equipment for processing control cabinet |
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| Country | Link |
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| CN (1) | CN117921271B (en) |
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| CN108311846A (en) * | 2018-03-31 | 2018-07-24 | 武邑县多吉柜业有限公司 | A kind of welding procedure for the positioning tool and cabinet welding cabinet |
| CN110434535A (en) * | 2019-08-23 | 2019-11-12 | 北京戴纳实验科技有限公司 | A kind of locating rack for Welding experiment room cabinet body |
| CN216990514U (en) * | 2022-05-16 | 2022-07-19 | 广东金铭利电气有限公司 | Machining mechanism for sheet metal shell of power distribution cabinet |
| CN217832434U (en) * | 2022-08-10 | 2022-11-18 | 昆山炫鹏机械设备制造有限公司 | Welding device for electronic control cabinet |
| CN116140875A (en) * | 2023-01-30 | 2023-05-23 | 谢凌凌 | Welding device and welding process for high-low temperature box |
| CN219293140U (en) * | 2022-12-20 | 2023-07-04 | 安徽中兴聚力精密机电技术有限公司 | Auxiliary device for welding of adjusting type sheet metal cabinet body |
| CN117245317A (en) * | 2023-11-08 | 2023-12-19 | 安徽德晟金属制品有限公司 | Side welding jig for cabinet production |
| CN220217353U (en) * | 2023-06-14 | 2023-12-22 | 河南速郎电力设备有限公司 | Clamp for assembling bottom frame of power distribution cabinet |
| CN117532191A (en) * | 2024-01-10 | 2024-02-09 | 中苏智慧电力有限公司 | Switch cabinet manufacturing and welding equipment |
-
2024
- 2024-03-20 CN CN202410317139.2A patent/CN117921271B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311846A (en) * | 2018-03-31 | 2018-07-24 | 武邑县多吉柜业有限公司 | A kind of welding procedure for the positioning tool and cabinet welding cabinet |
| CN110434535A (en) * | 2019-08-23 | 2019-11-12 | 北京戴纳实验科技有限公司 | A kind of locating rack for Welding experiment room cabinet body |
| CN216990514U (en) * | 2022-05-16 | 2022-07-19 | 广东金铭利电气有限公司 | Machining mechanism for sheet metal shell of power distribution cabinet |
| CN217832434U (en) * | 2022-08-10 | 2022-11-18 | 昆山炫鹏机械设备制造有限公司 | Welding device for electronic control cabinet |
| CN219293140U (en) * | 2022-12-20 | 2023-07-04 | 安徽中兴聚力精密机电技术有限公司 | Auxiliary device for welding of adjusting type sheet metal cabinet body |
| CN116140875A (en) * | 2023-01-30 | 2023-05-23 | 谢凌凌 | Welding device and welding process for high-low temperature box |
| CN220217353U (en) * | 2023-06-14 | 2023-12-22 | 河南速郎电力设备有限公司 | Clamp for assembling bottom frame of power distribution cabinet |
| CN117245317A (en) * | 2023-11-08 | 2023-12-19 | 安徽德晟金属制品有限公司 | Side welding jig for cabinet production |
| CN117532191A (en) * | 2024-01-10 | 2024-02-09 | 中苏智慧电力有限公司 | Switch cabinet manufacturing and welding equipment |
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| Publication number | Publication date |
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| CN117921271A (en) | 2024-04-26 |
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