CN214721328U - Automatic annular welding device for automobile sleeve parts - Google Patents

Automatic annular welding device for automobile sleeve parts Download PDF

Info

Publication number
CN214721328U
CN214721328U CN202023136827.5U CN202023136827U CN214721328U CN 214721328 U CN214721328 U CN 214721328U CN 202023136827 U CN202023136827 U CN 202023136827U CN 214721328 U CN214721328 U CN 214721328U
Authority
CN
China
Prior art keywords
welding
base
welding gun
pressing
motor
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.)
Active
Application number
CN202023136827.5U
Other languages
Chinese (zh)
Inventor
曾东贤
邹士亮
韦筠寰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIUZHOU YUHUA TECHNOLOGY Co.,Ltd.
Original Assignee
Liuzhou Huaxia Standard Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liuzhou Huaxia Standard Parts Co Ltd filed Critical Liuzhou Huaxia Standard Parts Co Ltd
Priority to CN202023136827.5U priority Critical patent/CN214721328U/en
Application granted granted Critical
Publication of CN214721328U publication Critical patent/CN214721328U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses an automatic annular welding device for automobile sleeve parts, and particularly relates to the field of automatic welding equipment. The welding machine has the advantages that the shaft tube and the flanges at the two ends are arranged and welded in the previous process, the welding machine can be directly positioned and compressed, the workpiece rotates 360 degrees axially during welding to complete circumferential welding by one welding gun, double-station operation can complete circumferential welding of two welding lines simultaneously, turning is not needed, the production beat is fast, the flexibility is strong, the production requirement of more than one thousand pieces per shift in the steam distribution industry can be met, the process is simplified, the clamping is convenient, and the production efficiency is improved.

Description

Automatic annular welding device for automobile sleeve parts
Technical Field
The invention relates to the technical field of automatic welding equipment, in particular to an automatic annular welding device for an automobile sleeve part.
Background
In automobile parts, after sleeve parts such as an axle tube and a thin-wall flange are connected in a matching mode, welding application is wide, and seam welding operation needs to be carried out along circular welding seams at two ends. The traditional manual welding has low efficiency and high labor intensity, and the welding quality and the attractiveness can not be ensured; in addition, the sleeve parts have a plurality of specifications and different sizes in diameter and height, and requirements are also provided for the adaptability and adjustability of the welding device.
Chinese patent application No.: CN 202010487912.1; the flange rotating mechanism drives the supporting mechanism to clamp and rotate the flange, then the flange drives the steel pipe to rotate, and then circumferential welding between the steel pipe and the flange is completed, so that welding between a small pipeline and the flange is facilitated, and a large amount of working time of workers is saved.
This solution has the following drawbacks:
1. the steel pipe and the flange are respectively clamped, the steel pipe and the flange are matched together through axial movement to complete positioning and clamping, the ring welding is completed by two welding guns together through axial rotation of 180 degrees of a workpiece 7 during welding, and then the ring welding of the steel pipe and the flange at the other end is completed through transverse 180-degree rotation and turning and repeated previous step of work;
2. the workpiece 7 is horizontally placed, the positioning is realized by the outer cylindrical surface support of the steel pipe and the inner hole tensioning of the flange in an inner diameter and outer diameter automatic centering mode, the operation and the maintenance are complex, and the manufacturing cost of the tool is high; in addition, the inner hole of the flange is too small or the tensioning mechanism of the thin-wall flange piece cannot be arranged, so that the adaptability is limited.
Disclosure of Invention
In order to overcome the above defects in the prior art, an embodiment of the present invention provides an automatic annular welding device for automobile sleeve members, and the technical problems to be solved by the present invention are: when the existing automobile sleeve part is produced in a large scale, the shaft tube and the flange are usually welded in a spot welding mode and then welded in a ring welding mode, and production efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic annular welding device for automobile sleeve parts comprises a base and a workpiece, wherein rotary workbenches are fixedly arranged on two sides of the center of the top end of the base, a pressing mechanism is arranged at the top of each rotary workbench, the bottom ends of the pressing mechanisms are fixedly connected with the base, a welding gun moving mechanism is arranged on one side of each rotary workbench, the bottom ends of the welding gun moving mechanisms are fixedly connected with the top surface of the base, a control box is fixedly arranged on the side wall of the base, and a protective cover is fixedly arranged on the top of the base;
the rotary worktable comprises a pillow block, a mandrel, a synchronous belt, a large synchronous wheel, a small synchronous wheel, a motor and a motor support, wherein the pillow block longitudinally penetrates through the base and is rotatably connected with the base;
the pressing mechanism comprises a vertical seat, a guide rail, a fixed support, a pressing air cylinder, a movable support and a pressing assembly, the vertical seat is fixedly arranged in a region corresponding to the shaft platform at the rear part of the top of the base, the guide rail is fixedly arranged at the middle part of one side of the vertical seat, the fixed support is further arranged at the top of the vertical seat, the air cylinder is connected onto the outer side wall of the fixed support, the telescopic end of the air cylinder penetrates through the fixed support and is fixedly connected with the movable support, a sliding groove is arranged at the joint of the movable support and the guide rail, the movable support is movably connected with the guide rail through the sliding groove, and the pressing assembly is fixedly connected to the bottom of the movable support;
welder moving mechanism includes stand, sliding seat, welder moving cylinder, fastening bolt, movable support, conducting bar and steel pipe welder, the stand set up in pillow block one side and with base fixed connection, stand swing joint has the sliding seat, demountable installation has fastening bolt between sliding seat and the stand, the fixed welder moving cylinder that is equipped with of sliding seat lateral wall, welder moving cylinder runs through the sliding seat and fixes and be equipped with the movable support, the last fixed standing groove that is equipped with of movable support, install the conducting bar in the standing groove, still install steel pipe welder on the movable support.
In a preferred embodiment, the welding device adopts a double-station arrangement of a base, two groups of rotary working tables, two groups of pressing mechanisms and two groups of welding gun moving mechanisms, and can respectively complete the welding of annular welding seams at two ends of a workpiece at the same time.
In a preferred embodiment, the top end of the rotary workbench is detachably connected with a mandrel, the mandrel is arranged in a hollow mode, the mandrel is arranged in sizes of various different inner diameters, and the mandrel can be replaced according to positioning requirements of different bore sizes.
In a preferred embodiment, the pressing component is arranged as a multi-cylinder assembly, the lower end of the pressing component is in an apex structure and can adapt to the positioning of inner angles in a wider aperture size range; the mandrel and the top of the pressing assembly are coaxially arranged, so that rapid positioning and clamping can be realized.
In a preferred embodiment, the rotary table and the pressing assembly are respectively provided with rolling bearings which are supported in the base and the movable support respectively, can freely rotate and can bear certain axial load.
In a preferred embodiment, the motor is a small dc motor with a gear box, and the accurate transmission ratio and rotation speed can be ensured by connecting a synchronous wheel and a synchronous belt with the rotary table to realize speed reduction transmission.
In a preferred embodiment, a PLC controller is arranged in the control box, and the PLC controller is in signal connection with the motor, the pressing cylinder, the welding gun moving cylinder and the steel pipe welding gun through a PLC program to realize automatic welding.
In a preferred embodiment, the protective cover comprises a cover plate and a door plate, the cross section of the cover plate is arranged in an L shape, an adjusting groove is arranged at the joint of the cover plate and the door plate, the door plate is connected with the door plate in a sliding mode through the adjusting groove, and safe operation is achieved through the split sliding door.
The invention has the technical effects and advantages that:
1. the welding machine has the advantages that the shaft tube and the flanges at two ends are arranged and welded in the previous process, the welding machine can be directly positioned and compressed, the workpiece is axially rotated by 360 degrees during welding, the girth welding of two welding lines can be simultaneously completed through double-station operation, the head turning is not needed, the production beat is fast, the flexibility is strong, the production requirement of more than one thousand pieces per shift in the steam distribution industry can be met, the process is simplified, the clamping is convenient and fast, and the production efficiency is improved;
2. the workpiece is placed vertically, a mandrel and a live center combination mode which is commonly used in machining is adopted, positioning is realized through clearance fit of an inner hole of the workpiece and the mandrel and fit of an inner hole chamfer and a conical surface of a tip end part, operation and maintenance are simple, the manufacturing cost of the tool is low, and the tool is wide in adaptability;
3. the invention can realize the welding of a set of annular welding device corresponding to a plurality of sleeve pieces with different specifications, and achieves the effect of multiple purposes only by replacing the mandrel, thereby reducing the production cost;
4. the rotating table of the invention has stable rotating speed, can be finely adjusted at low speed, and is beneficial to process optimization of feeding parameters, thereby ensuring excellent welding quality requirements.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the main structure of the present invention.
Fig. 3 is a schematic structural diagram of the pressing mechanism of the present invention.
Fig. 4 is a schematic structural view of a welding gun moving mechanism of the invention.
Fig. 5 is a schematic front view of the workpiece positioning and clamping of the present invention.
The reference signs are: the welding machine comprises a base 1, a rotary worktable 2, a shaft table 21, a mandrel 22, a synchronous belt 23, a large synchronous wheel 24, a small synchronous wheel 25, a motor 26, a motor bracket 27, a pressing mechanism 3, a vertical seat 31, a guide rail 32, a fixed support 33, a pressing cylinder 34, a movable support 35, a pressing assembly 36, a welding gun moving mechanism 4, an upright column 41, a sliding seat 42, a welding gun moving cylinder 43, a fastening bolt 44, a movable support 45, a guide bar 46, a steel pipe welding gun 47, a control box 5, a protective cover 6 and a workpiece 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
The invention provides an automatic annular welding device for automobile sleeve parts, which comprises a base 1 and a workpiece 7, wherein rotary working tables 2 are fixedly arranged on two sides of the center of the top end of the base 1, a pressing mechanism 3 is arranged on the top of each rotary working table 2, the bottom ends of the pressing mechanisms 3 are fixedly connected with the base 1, a welding gun moving mechanism 4 is arranged on one side of each rotary working table 2, the bottom end of each welding gun moving mechanism 4 is fixedly connected with the top surface of the base 1, a control box 5 is fixedly arranged on the side wall of the base 1, and a protective cover 6 is fixedly arranged on the top of the base 1;
the rotary workbench 2 comprises a pillow block 21, a mandrel 22, a synchronous belt 23, a large synchronous wheel 24, a small synchronous wheel 25, a motor 26 and a motor support 27, wherein the pillow block 21 longitudinally penetrates through the base 1 and is rotationally connected with the base 1, the bottom end of the pillow block 21 is fixedly connected with the large synchronous wheel 24, the large synchronous wheel 24 is in transmission connection with the small synchronous wheel 25 through the synchronous belt 23, the motor support 27 is fixedly connected with the bottom wall of the base 1, the motor 26 is fixedly arranged on one side of the motor support 27, and the output shaft of the motor 26 is fixedly connected with the small synchronous wheel 25;
the pressing mechanism 3 comprises a vertical seat 31, a guide rail 32, a fixed support 33, a pressing cylinder 34, a movable support 35 and a pressing assembly 36, the vertical seat 31 is fixedly arranged at the rear part of the top of the base 1 and corresponds to the area of the pillow block 21, the guide rail 32 is fixedly arranged in the middle of one side of the vertical seat 31, the fixed support 33 is further installed at the top of the vertical seat 31, the outer side wall of the fixed support 33 is connected with the cylinder, the telescopic end of the cylinder penetrates through the fixed support 33 and is fixedly connected with the movable support 35, a sliding groove is arranged at the connection part of the movable support 35 and the guide rail 32, the movable support 35 is movably connected with the guide rail 32 through the sliding groove, and the pressing assembly 36 is fixedly connected to the bottom of the movable support 35;
welder moving mechanism 4 includes stand 41, sliding seat 42, welder moving cylinder 43, fastening bolt 44, movable support 45, conducting bar 46 and steel pipe welder 47, stand 41 set up in pillow block 21 one side and with base 1 fixed connection, stand 41 swing joint has sliding seat 42, demountable installation has fastening bolt 44 between sliding seat 42 and the stand 41, the fixed welder moving cylinder 43 that is equipped with of sliding seat 42 lateral wall, welder moving cylinder 43 runs through sliding seat 42 and fixes being equipped with movable support 45, the fixed standing groove that is equipped with on the movable support 45, install conducting bar 46 in the standing groove, still install steel pipe welder 47 on the movable support 45.
The welding device adopts double-station arrangement of a base 1, two groups of rotary workbenches 2, two groups of pressing mechanisms 3 and two groups of welding gun moving mechanisms 4, can respectively complete welding of annular welding seams at two ends of a workpiece 7 at the same time, the top end of each rotary workbench 2 is detachably connected with a mandrel 22, the mandrels 22 are arranged in a hollow mode, the mandrels 22 are set to be in sizes with different inner diameters and can be replaced according to positioning requirements of different aperture sizes, the pressing assemblies 36 are arranged to be multi-cylinder assemblies, and the lower ends of the pressing assemblies 36 are in tip structures and can adapt to inner angle positioning within a wide aperture size range; the mandrel 22 and the pressing component 36 are coaxially arranged, so that rapid positioning and clamping can be realized, the rotary worktable 2 and the pressing component 36 are respectively provided with a rolling bearing which is supported in the base 1 and the movable support 35 and can freely rotate and bear a certain axial load, the motor 26 is a small direct current motor with a gear box, is connected with the rotary worktable 2 through a synchronizing wheel and a synchronous belt 23 to realize speed reduction transmission, so that accurate transmission ratio and rotation speed can be ensured, the control box 5 is internally provided with a PLC (programmable logic controller), the PLC is in signal connection with the motor 26, the pressing cylinder 34, the welding gun moving cylinder 43 and the steel pipe welding gun 47 through a PLC program to realize automatic welding, the protective cover 6 comprises a door plate and a cover plate, the cross section of the cover plate is in an L shape, and the joint of the cover plate and the door plate is provided with an adjusting groove, the door plate is connected with the door plate in a sliding mode through the adjusting groove, and safe operation is achieved through the split sliding door.
As shown in fig. 1 to 5, the embodiment specifically is as follows: firstly, adjusting the proper height of the sliding seat 42 according to the specification and the size of the workpiece 7, locking, setting the transverse working stroke of the welding gun, and setting the upper and lower working strokes of the pressing component 36; during operation, as shown in the figure, a workpiece 7 is respectively placed into the mandrels 22 on the two pillow blocks 21 for prepositioning, a working button is started, the workpiece 7 is pressed by a tip pressure head of the pressing assembly 36 under the pushing of the pressing cylinder 34 according to a preset program, the welding gun moving cylinder 43 pushes the movable support 45 to a steel pipe welding gun 47 on the movable support to reach a welding position, the welding machine starts arc welding, the motor 26 drives the pillow blocks 21 to rotate to start seam welding, at the moment, the protective cover 6 can be closed, the rotary workbench 2 stops rotating after welding is completed, and the welding gun and the pressing assembly 36 return to initial positions.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
21. secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
22. and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. The utility model provides an automatic annular welding set of car cover barrel spare, includes base (1) and work piece (7), its characterized in that: the welding gun welding device is characterized in that rotary working tables (2) are fixedly arranged on two sides of the center of the top end of the base (1), a pressing mechanism (3) is arranged at the top of each rotary working table (2), the bottom end of each pressing mechanism (3) is fixedly connected with the base (1), a welding gun moving mechanism (4) is arranged on one side of each rotary working table (2), the bottom end of each welding gun moving mechanism (4) is fixedly connected with the top surface of the base (1), a control box (5) is fixedly arranged on the side wall of the base (1), and a protective cover (6) is fixedly arranged on the top of the base (1);
the rotary workbench (2) comprises a pillow block (21), a mandrel (22), a synchronous belt (23), a large synchronous wheel (24), a small synchronous wheel (25), a motor (26) and a motor support (27), wherein the pillow block (21) longitudinally penetrates through the base (1) and is rotatably connected with the base, the bottom end of the pillow block (21) is fixedly connected with the large synchronous wheel (24), the large synchronous wheel (24) is in transmission connection with the small synchronous wheel (25) through the synchronous belt (23), the motor support (27) is fixedly connected with the bottom wall of the base (1), the motor (26) is fixedly arranged on one side of the motor support (27), and an output shaft of the motor (26) is fixedly connected with the small synchronous wheel (25);
the pressing mechanism (3) comprises a vertical seat (31), a guide rail (32), a fixed support (33), a pressing cylinder (34), a movable support (35) and a pressing assembly (36), the vertical seat (31) is fixedly arranged in a region corresponding to the shaft platform (21) at the top rear part of the base (1), the guide rail (32) is fixedly arranged in the middle of one side of the vertical seat (31), the fixed support (33) is further installed at the top of the vertical seat (31), the outer side wall of the fixed support (33) is connected with the cylinder, the telescopic end of the cylinder penetrates through the fixed support (33) and is fixedly connected with the movable support (35), a sliding groove is formed in the connection part of the movable support (35) and the guide rail (32), the movable support (35) is movably connected with the guide rail (32) through the sliding groove, and the pressing assembly (36) is fixedly connected to the bottom of the movable support (35);
the welding gun moving mechanism (4) comprises an upright post (41), a sliding seat (42), a welding gun moving cylinder (43), a fastening bolt (44), a movable bracket (45), a guide bar (46) and a steel pipe welding gun (47), the upright post (41) is arranged on one side of the pillow block (21) and is fixedly connected with the base (1), the upright post (41) is movably connected with a sliding seat (42), a fastening bolt (44) is detachably arranged between the sliding seat (42) and the upright post (41), a welding gun moving cylinder (43) is fixedly arranged on the outer side wall of the sliding seat (42), the welding gun moving cylinder (43) penetrates through the sliding seat (42) and is fixedly provided with a movable bracket (45), a placing groove is fixedly arranged on the movable support (45), a guide strip (46) is arranged in the placing groove, and a steel pipe welding gun (47) is further arranged on the movable support (45).
2. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the welding device adopts double-station arrangement of a base (1), two groups of rotary working tables (2), two groups of pressing mechanisms (3) and two groups of welding gun moving mechanisms (4).
3. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the rotary worktable (2) is detachably connected with the mandrel (22), the mandrel (22) is arranged in a hollow mode, and the mandrel (22) is arranged to be of various different inner diameters.
4. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the pressing assembly (36) is arranged into a multi-cylinder assembly, the lower end of the pressing assembly (36) is of an apex structure, and the core shaft (22) and the apex of the pressing assembly (36) are coaxially arranged.
5. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the rotary workbench (2) and the pressing assembly (36) are respectively provided with rolling bearings which are supported in the base (1) and the movable support (35).
6. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the motor (26) is a small direct current motor with a gear box.
7. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the PLC is arranged in the control box (5) and is in signal connection with the motor (26), the pressing cylinder (34), the welding gun moving cylinder (43) and the steel pipe welding gun (47) through a PLC program.
8. The automatic ring welding apparatus for automobile sleeves according to claim 1, wherein: the protective cover (6) comprises a cover plate and a door plate, the cross section of the cover plate is L-shaped, an adjusting groove is formed in the joint of the cover plate and the door plate, and the door plate is connected with the door plate in a sliding mode through the adjusting groove.
CN202023136827.5U 2020-12-23 2020-12-23 Automatic annular welding device for automobile sleeve parts Active CN214721328U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023136827.5U CN214721328U (en) 2020-12-23 2020-12-23 Automatic annular welding device for automobile sleeve parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023136827.5U CN214721328U (en) 2020-12-23 2020-12-23 Automatic annular welding device for automobile sleeve parts

Publications (1)

Publication Number Publication Date
CN214721328U true CN214721328U (en) 2021-11-16

Family

ID=78633667

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023136827.5U Active CN214721328U (en) 2020-12-23 2020-12-23 Automatic annular welding device for automobile sleeve parts

Country Status (1)

Country Link
CN (1) CN214721328U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112427775A (en) * 2020-12-23 2021-03-02 柳州煜华科技有限公司 Automatic annular welding device for automobile sleeve parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112427775A (en) * 2020-12-23 2021-03-02 柳州煜华科技有限公司 Automatic annular welding device for automobile sleeve parts

Similar Documents

Publication Publication Date Title
CN112427775A (en) Automatic annular welding device for automobile sleeve parts
CN112264737A (en) Automatic welding device for end flange of pipe fitting
CN110579164B (en) Synchronous clamping eccentric detection device for round workpiece
CN215145543U (en) Automatic welding equipment for workpiece circular seam
CN107775222A (en) A kind of auto spiral bonding machine and its welding method
CN115229421B (en) Positioning welding tool for framework of large-compartment chassis of crane
CN214721328U (en) Automatic annular welding device for automobile sleeve parts
CN110681976A (en) Aluminum alloy wheel friction stir welding duplex position automatic clamping system
CN113199133A (en) Angle-adjustable conical cylinder annular seam friction stir welding device and welding method
CN115255768A (en) Steel construction preparation welds dress butt joint frock clamp
CN214236957U (en) Automatic welding device for branch pipe of stainless steel water separator
CN111745408B (en) Welding robot for vertically arranging steel pipes and guardrails
CN115026387B (en) Semiautomatic welding equipment for gravure plate roller with shaft and clamping welding method thereof
CN211539878U (en) Automatic welding device for straight welding seams on two sides of automobile rear axle housing
CN216912759U (en) Welding device for special steel cylinder base
CN110961814A (en) Flexible welding workstation for scissor arm
CN207615934U (en) A kind of auto spiral bonding machine
CN214921355U (en) Circular seam friction stir welding device
CN201596873U (en) Welding roller bracket
CN115740890A (en) Welding device and welding process for stainless steel sheet metal parts
CN110977118B (en) Special-shaped section wheel circle welding limiting device
CN212705254U (en) Welding tool for pipe flange
CN114833422A (en) Flame cutting device for pipe fitting
CN212526556U (en) Pipe welding equipment
CN209919204U (en) Variable-angle flange plate welding tool

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220114

Address after: No. 11, qianggong Road, Luorong Town, Liuzhou City, Guangxi Zhuang Autonomous Region

Patentee after: LIUZHOU YUHUA TECHNOLOGY Co.,Ltd.

Address before: 545616 Luorong Industrial Park, Yanghe industrial new area, Liuzhou City, Guangxi Zhuang Autonomous Region

Patentee before: Liuzhou Huaxia Standard Parts Co.,Ltd.

TR01 Transfer of patent right