CN218082432U - Pneumatic positioning mechanism for micro motor shell - Google Patents
Pneumatic positioning mechanism for micro motor shell Download PDFInfo
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- CN218082432U CN218082432U CN202222296053.5U CN202222296053U CN218082432U CN 218082432 U CN218082432 U CN 218082432U CN 202222296053 U CN202222296053 U CN 202222296053U CN 218082432 U CN218082432 U CN 218082432U
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Abstract
The utility model relates to a pneumatic positioning mechanism for a micro motor shell, which comprises a guide seat, a positioning device and a power device, wherein a transmission gear is rotationally arranged on the guide seat; the positioning device comprises a driving positioning assembly and a driven positioning assembly, wherein a driving rack is arranged on the driving positioning assembly, a driven rack is arranged on the driven positioning assembly, and the driving rack and the driven rack are respectively meshed with the transmission gear for transmission; the power device is a driving cylinder, the telescopic end of the power device is in driving connection with the driving positioning assembly, and the driving positioning assembly and the driven positioning assembly are driven to move on the guide seat in an opening and closing mode simultaneously. The pneumatic positioning mechanism is simple in structure, low in production cost, simple in assembly process, high in transmission matching precision, good in transmission efficiency and low in energy consumption, can realize high-precision control of opening and closing clamping strokes, can better fix the motor shell, can avoid the problem of damage to the motor shell due to overlarge clamping force, and can meet the positioning requirements of different motor shell model sizes.
Description
Technical Field
The utility model relates to a motor production facility technical field specifically is a pneumatic positioning mechanism for micromotor casing.
Background
With the development of national intelligent manufacturing, the production efficiency is continuously improved, and the production and manufacturing automation is continuously promoted to play an important role for companies in the manufacturing industry. The micro synchronous motor is used as a key power component in a plurality of household electrical appliances, and is widely applied to ovens, microwave ovens, air fryer, automatic door lock mechanisms, fans and the like. The traditional production and manufacturing mode of the micro synchronous motor usually adopts manual work to position and process production materials, and the mode is contrary to the mode of promoting production and manufacturing automation, is greatly influenced by human factors, and cannot ensure the precision requirement.
Therefore, in order to realize production automation, related technical personnel research and develop, for example, chinese patent document No. CN217159516U discloses a fixing device for motor housing production and processing at 8.9.2022, which comprises a supporting platform, a rotating ring is movably connected to the middle of the supporting platform, a abdicating groove is formed on the surface of the rotating ring, a moving block is movably connected to the inner cavity of the abdicating groove, a supporting block is fixedly mounted on the top surface of the moving block, and a ball screw is arranged on the bottom surface of the rotating ring. The structure can realize that the bottom plate drives the ball screw to rotate through the first gear by meshing the first gear with the first gear, and the three ball screw is respectively meshed with the three moving blocks, so that the three moving blocks can respectively drive the three supporting blocks to move towards the end far away from the center of the supporting platform, and the three supporting blocks are attached to the inner wall of the motor shell, thereby fixing the motor shell, moving different distances through the three supporting blocks, and fixing different motor shells.
However, the following disadvantages exist: 1. the torque output by the brake motor is uncontrollable, the motor shell is easily damaged when the torque is large, and the motor shell cannot be fixed when the torque is small; 2. the ball screw not only increases manufacturing cost and the assembly degree of difficulty, can increase whole fixing device's volume simultaneously, leads to fixing device can't use in the production facility of small volume, and ball screw still can the loss problem appear as the transmission of kinetic energy simultaneously, can't transmit brake motor's kinetic energy well.
Therefore, further improvements are necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pneumatic positioning mechanism for micromotor casing to overcome the weak point among the prior art.
The pneumatic positioning mechanism for the micro motor shell comprises a guide seat, a positioning device and a power device, wherein a transmission gear is rotatably arranged on the guide seat; the positioning device comprises a driving positioning assembly and a driven positioning assembly, a driving rack is arranged on the driving positioning assembly, a driven rack is arranged on the driven positioning assembly, and the driving rack and the driven rack are respectively meshed with the transmission gear for transmission; the power device is a driving cylinder, the telescopic end of the power device is in driving connection with the driving positioning assembly, and the power device simultaneously drives the driving positioning assembly and the driven positioning assembly to simultaneously open and close on the guide seat.
The purpose of the utility model can also adopt the following technical measures to solve:
the active positioning assembly is arranged at the rear side of the guide seat; the driven positioning assemblies are at least two and are respectively a left driven positioning assembly and a right driven positioning assembly, and the left driven positioning assembly and the right driven positioning assembly are respectively arranged at the left position and the right position of the guide seat.
The active positioning assembly comprises an active positioning piece and an active sliding piece fixedly arranged on the active positioning piece; the driving rack is arranged on the driving sliding piece.
The left driven positioning assembly and the right driven positioning assembly respectively comprise a left driven positioning piece, a right driven positioning piece and a left driven sliding piece which is fixedly arranged on the left driven positioning piece and the right driven positioning piece; the driven rack is arranged on the left and right driven sliding pieces.
A connecting piece is fixedly arranged on the outer side surface of the active positioning piece or the active sliding piece; the driving cylinder is fixedly arranged at the bottom of the guide seat, the telescopic end of the driving cylinder extends towards the rear side of the guide seat, and the driving cylinder is in driving connection with the connecting piece.
A front and a rear thread adjusting piece are arranged on the telescopic end of the driving cylinder; the bottom of the connecting piece is provided with a U-shaped notch and is connected to the telescopic end of the driving cylinder through the U-shaped notch; the front and rear thread adjusting pieces are adjustably movable on the telescopic end of the driving cylinder and are fastened on the front and rear side faces of the connecting piece during adjustment.
A plane positioning part is arranged on the inner side of the active positioning part, and a pressing limiting part is further arranged on the active positioning part; the inner sides of the left and right driven positioning pieces are provided with arc-shaped positioning parts.
The guide seat is provided with guide grooves corresponding to the driving sliding piece and the left and right driven sliding pieces, the guide grooves are in a cross shape or a T shape, and the middle parts of the crossed positions of the guide grooves are provided with connecting holes; the transmission gear is rotatably arranged on the connecting hole through a connecting shaft.
The guide seat is also provided with a positioning cover plate for positioning and placing the motor shell, and the positioning cover plate is fixedly arranged at the top of the guide seat and covers the transmission gear, the driving sliding part and the left and right driven sliding parts; the driving positioning piece, the left and right driven positioning pieces and the pressure setting limiting piece are respectively positioned above the positioning cover plate.
The positioning cover plate is also provided with avoidance notches corresponding to the driving positioning piece and the left and right driven positioning pieces respectively; the driving positioning piece, the left driven positioning piece and the right driven positioning piece are fixedly connected with the driving sliding piece and the left driven sliding piece and the right driven sliding piece respectively through the avoidance notches.
Still be provided with the base on the guide holder, be provided with a plurality of support piece on the base, and through a plurality of support piece is fixed to be set up the guide holder bottom.
The utility model discloses utilize the activity of drive actuating cylinder drive initiative locating component, initiative locating component drives the drive gear through the initiative rack when the activity and rotates, drive gear then utilizes driven rack drive driven locating component to follow the activity when rotating, in order to realize initiative locating component, driven locating component open and shut the activity simultaneously on the guide holder, and fix a position motor casing, not only simplify motor casing's location transmission structure effectively, reduction in production cost and assembly process, and the transmission cooperation precision of rack and gear is high, transmission efficiency is good, the use of cooperation drive actuating cylinder can reduce the energy consumption; because the stroke controllable precision of the telescopic end of the driving cylinder is high, the rotation angle of the transmission gear can be controlled according to the stroke of the driving rack, the opening and closing clamping strokes of the driving positioning assembly and the driven positioning assembly are the same and can be controlled, the motor shell can be better fixed, the problem that the motor shell is damaged due to the fact that the clamping force is too large can be solved, meanwhile, the positioning of different motor shell models and sizes can be met, the application range is wide, and the practicability is strong.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 and fig. 2 are schematic views of an assembly structure according to an embodiment of the present invention.
Fig. 3 and 4 are schematic exploded structural diagrams according to an embodiment of the present invention.
FIG. 5 is a schematic view of the open state of the driving positioning assembly and the left and right driven positioning assemblies.
Fig. 6 is a partially enlarged view of fig. 5 without positioning the cover plate.
FIG. 7 is a schematic diagram of the closed state of the driving positioning assembly and the left and right driven positioning assemblies.
Fig. 8 is a partially enlarged view of fig. 7 without positioning the cover plate.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-8, the pneumatic positioning mechanism for the micro-motor shell comprises a guide seat 1, a positioning device and a power device, wherein a transmission gear 2 is rotatably arranged on the guide seat 1; the positioning device comprises a driving positioning assembly and a driven positioning assembly, a driving rack 3 is arranged on the driving positioning assembly, a driven rack 4 is arranged on the driven positioning assembly, and the driving rack 3 and the driven rack 4 are respectively in meshed transmission with the transmission gear 2; the power device is a driving cylinder 5, the telescopic end of the power device is in driving connection with the driving positioning component, and the driving positioning component and the driven positioning component are driven to move on the guide seat 1 in an opening and closing mode simultaneously.
In the embodiment, the driving cylinder 5 is used for driving the driving positioning assembly to move, the driving positioning assembly drives the transmission gear 2 to rotate through the driving rack 3 during movement, and the transmission gear 2 drives the driven positioning assembly to move along with the driving rack 4 during rotation, so that the driving positioning assembly and the driven positioning assembly can be opened and closed on the guide seat 1 at the same time, and the motor shell is positioned, therefore, the positioning transmission structure of the motor shell is effectively simplified, the production cost and the assembly process are reduced, the transmission matching precision of the rack and the gear is high, the transmission efficiency is good, and the energy consumption can be reduced by matching with the driving cylinder 5; because the controllable precision of the flexible end stroke that drives actuating cylinder 5 is high, the rotation angle of drive gear 2 also can be controlled according to the stroke of initiative rack 3, consequently can make the tight stroke of the switching clamp of initiative locating component, driven locating component the same and can realize controlling, the fixed motor casing not only better, but also can avoid because the too big problem that causes the damage of motor casing of clamp force, can also satisfy the location of different motor casing model sizes simultaneously, and application range is wide, and the practicality is strong.
Specifically, the active positioning component is arranged at the rear position of the guide seat 1; the driven positioning assemblies are at least two and are respectively a left driven positioning assembly and a right driven positioning assembly which are respectively arranged at the left position and the right position of the guide seat 1.
The active positioning component comprises an active positioning part 6 and an active sliding part 7 fixedly arranged on the active positioning part 6; the driving rack 3 is arranged on the driving slide 7.
The left and right driven positioning components respectively comprise left and right driven positioning parts 8 and left and right driven sliding parts 9 fixedly arranged on the left and right driven positioning parts 8; the driven rack 4 is provided on the left and right driven sliders 9.
A connecting piece 10 is fixedly arranged on the outer side surface of the active positioning piece 6 or the active sliding piece 7; the driving cylinder 5 is fixedly arranged at the bottom of the guide seat 1, and the telescopic end of the driving cylinder extends towards the rear side of the guide seat 1 and is in driving connection with the connecting piece 10.
The telescopic end of the driving cylinder 5 of the embodiment is provided with a front and rear thread adjusting piece 11; the inner side surface of the upper part of the connecting piece 10 is fixedly arranged on the outer side surface of the driving sliding piece 7, and the bottom of the connecting piece 10 is provided with a U-shaped notch and is connected to the telescopic end of the driving cylinder 5 through the U-shaped notch; the front and rear screw thread adjusting pieces 11 are adjustably movable on the telescopic ends of the driving cylinders 5 and tightly act on the front and rear side faces of the connecting piece 10 during adjustment, the assembly is simple and convenient, and meanwhile, the front and rear positions of the connecting piece 10 can be adjusted, so that the opening and closing positions of the driving positioning piece 6 and the left and right driven positioning pieces 8 are adjusted.
In order to better position the motor shell by the driving positioning piece 6 and the left and right driven positioning pieces 8, a plane positioning part is arranged on the inner side of the driving positioning piece 6 and can position the rear side of the motor shell, meanwhile, a pressure limiting piece 12 is also arranged on the driving positioning piece 6, a long hole extending forwards and backwards is arranged between the pressure limiting piece 12 and the driving positioning piece 6, a fastening piece can be arranged on the long hole, the pressure limiting piece 12 can be fastened on the driving positioning piece 6 in a front-back adjusting mode by utilizing the tightness of the fastening piece on the long hole, the pressure limiting piece 12 is arranged on the left and right sides, and the top of a terminal framework on the rear side of the motor shell can be pressed during working, so that the positioning effect of the motor shell is improved, and the universality is improved; control 8 inboards of driven setting element and be provided with arc location portion, this arc location portion can fix a position motor housing's peripheral circular arc position, further improves motor housing's location effect.
In this embodiment, between the driving positioning element 6 and the driving sliding element 7, between the pressure limiting element 12 and the driving positioning element 6, between the left and right driven positioning elements 8 and the left and right driven sliding elements 9, concave-convex predetermined matching portions are respectively provided, between the driving positioning element 6 and the driving sliding element 7, between the pressure limiting element 12 and the driving positioning element 6, between the left and right driven positioning elements 8 and the left and right driven sliding elements 9, pre-positioning is performed through the concave-convex predetermined matching portions, and then, mutual fixation is performed by using fasteners, so that the driving positioning element 6 and the driving sliding element 7, between the pressure limiting element 12 and the driving positioning element 6, and assembly between the left and right driven positioning elements 8 and the left and right driven sliding elements 9 is performed.
The driving positioning assembly and the left and right driven positioning assemblies can position the left and right peripheries, the rear side periphery and the rear side top of the motor shell during closing operation, so that the motor shell can be accurately and stably positioned. And, when initiative locating component and left and right sides driven locating component opened, its front side position left the space, can be convenient for the motor casing and place.
Furthermore, the guide seat 1 is provided with guide grooves 13 corresponding to the driving sliding piece 7 and the left and right driven sliding pieces 9, the guide grooves 13 are in a cross shape or a T shape, and the middle parts of the crossing positions of the guide grooves 13 are provided with connecting holes 14; the transmission gear 2 is rotatably arranged on the connecting hole 14 through a connecting shaft.
The guide groove 13 can limit the sliding positions of the driving sliding part 7 and the left and right driven sliding parts 9, so that the driving sliding part 7 and the left and right driven sliding parts 9 can only slide linearly and reciprocally, the problems of shaking, swinging and the like of the driving positioning part 6 and the left and right driven positioning parts 8 during working are avoided, and the positioning stability of the motor shell is improved.
The guide groove 13 of the embodiment is cross-shaped, the transmission gear 2 is rotatably arranged in the middle of the crossing position of the guide groove 13, and the driving sliding piece 7 and the left and right driven sliding pieces 9 are positioned outside the transmission gear 2, so that the connection compactness among all components can be improved.
The guide seat 1 is also provided with a positioning cover plate 15 for positioning and placing the motor shell, and the positioning cover plate 15 is fixedly arranged at the top of the guide seat 1 and covers the transmission gear 2, the driving sliding part 7 and the left and right driven sliding parts 9; the driving positioning piece 6, the left and right driven positioning pieces 8 and the pressure limiting piece 12 are respectively positioned above the positioning cover plate 15.
When the driving positioning piece 6, the left and right driven positioning pieces 8 and the pressure setting limiting piece 12 are opened, a positioning area is formed on the positioning cover plate 15 immediately, and the motor shell can be placed on the positioning area; when the driving positioning piece 6, the left and right driven positioning pieces 8 and the pressure setting limiting piece 12 are closed, the motor shell on the positioning area can be clamped and positioned.
The positioning cover plate 15 is also provided with avoidance notches 16 corresponding to the driving positioning piece 6 and the left and right driven positioning pieces 8 respectively; the driving positioning piece 6 and the left and right driven positioning pieces 8 are respectively fixedly connected with the driving sliding piece 7 and the left and right driven sliding pieces 9 through avoidance notches 16.
Still be provided with base 17 on the guide holder 1, be provided with a plurality of support piece 18 on the base 17, and through the fixed setting in guide holder 1 bottom of a plurality of support piece 18.
As shown in fig. 5 and 6, the telescopic end of the driving cylinder 5 extends out of the guide seat 1, and the driving slider 7 is driven by the connecting piece 10 to slide on the guide groove 13 in a guide manner towards the outside of the guide seat 1, the driving slider 7 is meshed with the transmission gear 2 through the driving rack 3 when sliding towards the outside of the guide seat 1, and simultaneously the transmission gear 2 is driven to rotate towards one direction, the transmission gear 2 is meshed with the driven rack 4 when rotating, and drives the left and right driven sliders 9 to slide on the guide groove 13 in a guide manner towards the outside of the guide seat 1, so that the driving positioning piece 6, the left and right driven positioning pieces 8 and the pressure setting limiting piece 12 are mutually opened, a positioning area is formed on the positioning cover plate 15, and the motor shell is placed on the positioning area of the positioning cover plate 15.
As shown in fig. 7 and 8, the telescopic end of the driving cylinder 5 contracts towards the inner side of the guide holder 1, and simultaneously drives the driving slider 7 to slide on the guide slot 13 towards the inner side of the guide holder 1 through the connecting piece 10, the driving slider 7 is meshed with the transmission gear 2 through the driving rack 3 when sliding towards the same side of the guide holder 1, and simultaneously drives the transmission gear 2 to rotate towards the other direction, the transmission gear 2 is meshed with the driven rack 4 when rotating, and drives the left and right driven sliders 9 to slide on the guide slot 13 towards the inner side of the guide holder 1, so that the driving positioning piece 6, the left and right driven positioning pieces 8, and the pressure setting limiting piece 12 are mutually closed, and the motor housing on the positioning cover plate 15 is clamped and positioned.
The foregoing is the preferred embodiment of the present invention, showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a pneumatic positioning mechanism for micromotor casing, includes guide holder (1), positioner, power device, its characterized in that: the guide seat (1) is rotatably provided with a transmission gear (2); the positioning device comprises a driving positioning assembly and a driven positioning assembly, a driving rack (3) is arranged on the driving positioning assembly, a driven rack (4) is arranged on the driven positioning assembly, and the driving rack (3) and the driven rack (4) are respectively meshed with the transmission gear (2) for transmission; the power device is a driving cylinder (5), the telescopic end of the power device is in driving connection with the driving positioning assembly, and the power device simultaneously drives the driving positioning assembly and the driven positioning assembly to simultaneously open and close on the guide seat (1).
2. The pneumatic positioning mechanism for micromotor housings of claim 1, wherein: the active positioning assembly is arranged at the rear side position of the guide seat (1); the driven positioning assemblies are at least two and are respectively a left driven positioning assembly and a right driven positioning assembly, and the left driven positioning assembly and the right driven positioning assembly are respectively arranged at the left position and the right position of the guide seat (1).
3. The pneumatic positioning mechanism for micromotor housings of claim 2, wherein: the active positioning assembly comprises an active positioning piece (6) and an active sliding piece (7) fixedly arranged on the active positioning piece (6); the driving rack (3) is arranged on the driving sliding piece (7);
the left and right driven positioning components respectively comprise left and right driven positioning parts (8) and left and right driven sliding parts (9) fixedly arranged on the left and right driven positioning parts (8); the driven rack (4) is arranged on the left driven sliding piece and the right driven sliding piece (9).
4. The pneumatic positioning mechanism for micromotor housings of claim 3, wherein: a connecting piece (10) is fixedly arranged on the outer side surface of the active positioning piece (6) or the active sliding piece (7); the driving cylinder (5) is fixedly arranged at the bottom of the guide seat (1), and the telescopic end of the driving cylinder extends towards the rear side of the guide seat (1) and is in driving connection with the connecting piece (10).
5. The pneumatic positioning mechanism for micromotor housings of claim 4, wherein: a front and a rear thread adjusting piece (11) are arranged on the telescopic end of the driving cylinder (5); the bottom of the connecting piece (10) is provided with a U-shaped notch and is connected to the telescopic end of the driving cylinder (5) through the U-shaped notch; the front and rear thread adjusting pieces (11) are adjustably movable on the telescopic end of the driving cylinder (5) and tightly act on the front and rear side surfaces of the connecting piece (10) during adjustment.
6. The pneumatic positioning mechanism for micromotor housings of claim 4, wherein: a plane positioning part is arranged on the inner side of the active positioning part (6), and a pressing limiting part (12) is further arranged on the active positioning part (6); the inner sides of the left and right driven positioning pieces (8) are provided with arc-shaped positioning parts.
7. The pneumatic positioning mechanism for micromotor housings of claim 6, wherein: the guide seat (1) is provided with guide grooves (13) corresponding to the driving sliding piece (7) and the left and right driven sliding pieces (9), the guide grooves (13) are in a cross shape or a T shape, and the middle parts of the cross positions of the guide grooves are provided with connecting holes (14); the transmission gear (2) is rotatably arranged on the connecting hole (14) through a connecting shaft.
8. The pneumatic positioning mechanism for micromotor housings of claim 7, wherein: the guide seat (1) is also provided with a positioning cover plate (15) for positioning and placing a motor shell, and the positioning cover plate (15) is fixedly arranged at the top of the guide seat (1) and covers the transmission gear (2), the driving sliding part (7) and the left and right driven sliding parts (9); the driving positioning piece (6), the left and right driven positioning pieces (8) and the pressure setting limiting piece (12) are respectively positioned above the positioning cover plate (15).
9. The pneumatic positioning mechanism for a micromotor housing of claim 8, wherein: the positioning cover plate (15) is also provided with avoidance notches (16) corresponding to the driving positioning piece (6) and the left and right driven positioning pieces (8) respectively; the driving positioning piece (6) and the left and right driven positioning pieces (8) are respectively fixedly connected with the driving sliding piece (7) and the left and right driven sliding pieces (9) through the avoidance notch (16).
10. The pneumatic positioning mechanism for micromotor housings of claim 1, wherein: the guide seat (1) is further provided with a base (17), the base (17) is provided with a plurality of supporting pieces (18), and the supporting pieces (18) are fixedly arranged at the bottom of the guide seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296053.5U CN218082432U (en) | 2022-08-30 | 2022-08-30 | Pneumatic positioning mechanism for micro motor shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296053.5U CN218082432U (en) | 2022-08-30 | 2022-08-30 | Pneumatic positioning mechanism for micro motor shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218082432U true CN218082432U (en) | 2022-12-20 |
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ID=84449442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222296053.5U Active CN218082432U (en) | 2022-08-30 | 2022-08-30 | Pneumatic positioning mechanism for micro motor shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218082432U (en) |
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2022
- 2022-08-30 CN CN202222296053.5U patent/CN218082432U/en active Active
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Address after: No. 33 Guangjiao Industrial Avenue, Guangjiao Community, Beijiao Town, Shunde District, Foshan City, Guangdong Province, 528311 Patentee after: Guangdong Minzhuo Mechanical and Electrical Co.,Ltd. Address before: 528311 No.1, south 2nd Road, Guangjiao Industrial Zone, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: Guangdong Minzhuo Mechanical and Electrical Co.,Ltd. |