CN210586533U - 90-degree angle bending forming mechanism with automatic adjustment function - Google Patents

90-degree angle bending forming mechanism with automatic adjustment function Download PDF

Info

Publication number
CN210586533U
CN210586533U CN201921406328.8U CN201921406328U CN210586533U CN 210586533 U CN210586533 U CN 210586533U CN 201921406328 U CN201921406328 U CN 201921406328U CN 210586533 U CN210586533 U CN 210586533U
Authority
CN
China
Prior art keywords
fixed
block
side wall
lower die
plate
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
CN201921406328.8U
Other languages
Chinese (zh)
Inventor
郑佳佳
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.)
Dongguan Dingtong precision Polytron Technologies Inc.
Original Assignee
Dongguan Dingtong Precision Hardware 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 Dongguan Dingtong Precision Hardware Co ltd filed Critical Dongguan Dingtong Precision Hardware Co ltd
Priority to CN201921406328.8U priority Critical patent/CN210586533U/en
Application granted granted Critical
Publication of CN210586533U publication Critical patent/CN210586533U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The utility model discloses a 90-degree bending forming mechanism with automatic adjustment, which comprises a fixed bottom plate, wherein a right lower die fixed block is fixed on the right top surface of the fixed bottom plate, an oblique wall surface is formed on the left top surface of the right lower die fixed block, a lower die adjusting block is positioned above the left end of the right lower die fixed block, the bottom surface of the lower die adjusting block is an inclined surface, and the inclined surface is pressed on the oblique wall surface; the top surface of the lower die adjusting block is an upper inclined wall surface; a left vertical plate is fixed on the top surface of the left part of the fixed bottom plate, an upper supporting plate is fixed on the top surface of the left vertical plate, and a lower pressing oil cylinder is fixed on the top surface of the upper supporting plate; the right side of the bottom end of the punch is provided with an arc-shaped chamfering part, and the arc-shaped chamfering part is pressed against the upper inclined wall surface. The punch is movably connected, so that the bending plate to be processed with different thicknesses and similar thicknesses can be processed, and the bending effect is ensured.

Description

90-degree angle bending forming mechanism with automatic adjustment function
The technical field is as follows:
the utility model relates to an electron hardware manufacturing technical field, more specifically say and relate to a take automatically regulated's 90 jiaos of bending forming mechanism.
Background art:
present five metals plate punching press is bent when being 90 degrees, it needs to equal with the thickness of bending the plate to have the interval between its drift and the lower mould fixed block, thereby guarantee to bend, the surface can not produce wearing and tearing or warp etc, however, it can only adapt to this type of punching press board, when some punching press boards thickness are greater than the punching press board 0.1mm of regulation even 0.2mm, will make punching press board surface impaired and warp, influence the finished product, can only change drift isotructure this moment, and adopt the punching press board of different thickness just need change the drift at every turn, its installation is dismantled inconveniently, greatly reduced production efficiency.
The utility model has the following contents:
the utility model aims at overcoming prior art not enough, providing a take automatically regulated's 90 jiaos of forming mechanism that bends, it adopts swing joint with the drift for it can process the board of bending of treating of the different thickness that thickness is close, guarantees the effect of bending.
The utility model provides a technical problem's scheme is:
a90-degree angle bending forming mechanism with automatic adjustment comprises a fixed base plate, wherein a right lower die fixing block is fixed on the right top surface of the fixed base plate, an oblique wall surface is formed on the top surface of the left end of the right lower die fixing block, a lower die adjusting block is positioned above the left end of the right lower die fixing block, the bottom surface of the lower die adjusting block is an oblique surface, and the oblique surface is pressed on the oblique wall surface;
the top surface of the lower die adjusting block is an upper inclined wall surface;
a left vertical plate is fixed on the top surface of the left part of the fixed bottom plate, an upper supporting plate is fixed on the top surface of the left vertical plate, a lower pressing oil cylinder is fixed on the top surface of the upper supporting plate, a push rod of the lower pressing oil cylinder penetrates through the bottom surface of the upper supporting plate and is fixed with a connecting block, a through groove is formed in the middle of the bottom surface of the connecting block, the upper part of the punch is inserted and sleeved in the through groove, and the upper part of the punch is hinged to the connecting;
the right side of the bottom end of the punch is provided with an arc-shaped chamfering part, and the arc-shaped chamfering part is pressed against the upper inclined wall surface.
The top surface of the fixed bottom plate on the left side of the lower die adjusting block is provided with a lower die fixing block, and the lower die fixing block corresponds to the lower die adjusting block left and right.
A middle connecting plate is fixed on the right side wall of the middle of the left vertical plate, a middle pressing oil cylinder is fixed on the top surface of the middle connecting plate, a push rod of the middle pressing oil cylinder penetrates through the bottom surface of the middle connecting plate and is fixed with a pressing connecting block, and the left portion of the plate to be bent is clamped between the bottom surface of the pressing connecting block and the top surface of the lower die fixing block.
The left side wall of the punch is close to the right side wall of the compression connecting block.
The right side top surface of the through groove in the bottom surface of the connecting block is fixed with a limiting guide part, and the right side wall of the punch is close to the left side wall of the limiting guide part.
The left part and the right part of the bottom surface of the upper supporting plate are both fixed with lower guide blocks, the connecting block is positioned between the two lower guide blocks, and the side wall of the connecting block is tightly attached to the inner side wall of the corresponding lower guide block.
The bottom surface middle part of middle part connecting plate is fixed with vertical guide block, and the tip of the push rod of middle part pressure cylinder is fixed with the connecting block of bending, and the upper portion that compresses tightly the connecting block is fixed on the connecting block of bending, and the right side wall of vertical guide block is hugged closely to the left side wall of the connecting block of bending.
The left part of PMKD's top surface is fixed with main connecting block, and the lower mould fixed block is fixed on the left side wall of main connecting block, and the spiro union has two at least adjusting bolt on the upper portion right side board of main connecting block, and main connecting block right side wall is stretched out and articulates on same limiting plate to two adjusting bolt's tip, and the top surface of lower mould fixed block is hugged closely to the bottom surface of limiting plate, and the left side wall of waiting to process the board of bending is hugged closely to the right side wall of limiting plate.
An adjusting connecting block is fixed on the top surface of the right lower die fixing block, a transverse stepped through hole with a large left end diameter and a small right end diameter is formed in the upper portion and the lower portion of the adjusting connecting block, a buffer spring and a pressing plate are sleeved in the left end of the transverse stepped through hole in an inserting mode, a transverse adjusting bolt is fixed on the right side wall of the pressing plate, a screw portion of the transverse adjusting bolt is in threaded connection with an internal thread formed on the inner side wall of the right end portion of the transverse stepped through hole, the head portion of the right end of the adjusting bolt extends out of the right end of the transverse stepped through hole, an upper positioning block and a lower positioning block are formed on the right, the left end of the buffer spring is fixed on the right side wall of the lower die adjusting block, the left side wall of the pressing plate presses against the right end face of the buffer spring, the transverse adjusting bolt is screwed with a locking nut, and the locking nut presses against the right side wall of the adjusting connecting block.
And a processing groove is formed in the middle of the right side wall of the lower die fixing block.
The utility model discloses an outstanding effect is:
the punch is movably connected, so that the bending plate to be processed with different thicknesses and similar thicknesses can be processed, and the bending effect is ensured.
Description of the drawings:
fig. 1 is a partial structural schematic diagram of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
fig. 3 is a partial structural view of the punch.
The specific implementation mode is as follows:
in an embodiment, as shown in fig. 1 to 3, a 90 ° angle bending forming mechanism with automatic adjustment includes a fixed base plate 10, a right lower die fixing block 11 is fixed on a right top surface of a top surface of the fixed base plate 10, an oblique wall surface 12 is formed on a left top surface of the right lower die fixing block 11, a lower die adjusting block 13 is located above a left end of the right lower die fixing block 11, a bottom surface of the lower die adjusting block 13 is an oblique surface, and the oblique surface is pressed against the oblique wall surface 12;
the top surface of the lower die adjusting block 13 is an upper inclined wall surface 131;
a left vertical plate 20 is fixed on the top surface of the left part of the fixed bottom plate 10, an upper support plate 21 is fixed on the top surface of the left vertical plate 20, a lower pressure oil cylinder 22 is fixed on the top surface of the upper support plate 21, a push rod of the lower pressure oil cylinder 22 penetrates through the bottom surface of the upper support plate 21 and is fixed with a connecting block 23, a through groove 231 is formed in the middle of the bottom surface of the connecting block 23, the upper part of the punch 24 is inserted into the through groove 231, and the upper part of the punch 24 is hinged on the connecting block 23 through;
the right side of the bottom end of the punch 24 is an arc-shaped chamfered portion, and the arc-shaped chamfered portion is pressed against the upper inclined wall surface 131.
Further, a lower die fixing block 14 is mounted on the top surface of the fixed bottom plate 10 on the left side of the lower die adjusting block 13, and the lower die fixing block 14 corresponds to the lower die adjusting block 13 left and right.
Further, a middle connecting plate 25 is fixed on the right side wall of the middle of the left vertical plate 20, a middle pressing oil cylinder 26 is fixed on the top surface of the middle connecting plate 25, a push rod of the middle pressing oil cylinder 26 penetrates through the bottom surface of the middle connecting plate 25 and is fixed with a pressing connecting block 27, and the left portion of the bending plate 100 to be processed is clamped between the bottom surface of the pressing connecting block 27 and the top surface of the lower die fixing block 14.
Further, the left side wall of the punch 24 is close to the right side wall of the pressing connection block 27.
Further, a limiting guide part 232 is fixed to the top surface of the right side of the through groove 231 on the bottom surface of the connecting block 23, and the right side wall of the punch 24 is close to the left side wall of the limiting guide part 232.
Further, the lower guide blocks 212 are fixed on the left part and the right part of the bottom surface of the upper support plate 21, the connecting block 23 is located between the two lower guide blocks 212, and the side wall of the connecting block 23 is tightly attached to the inner side wall of the corresponding lower guide block 212.
Further, a vertical guide block 251 is fixed in the middle of the bottom surface of the middle connecting plate 25, a bent connecting block 261 is fixed at the end of a push rod of the middle pressing oil cylinder 26, the upper part of the pressing connecting block 27 is fixed on the bent connecting block 261, and the left side wall of the bent connecting block 261 is tightly attached to the right side wall of the vertical guide block 251.
Further, the left part of PMKD 10's top surface is fixed with main connecting block 15, and lower mould fixed block 14 is fixed on main connecting block 15's left side wall, and the spiro union has two at least adjusting bolt 16 on main connecting block 15's the upper portion right side board, and two adjusting bolt 16's tip stretches out main connecting block 15 right side wall and articulates on same limiting plate 17, and lower mould fixed block 14's top surface is hugged closely to limiting plate 17's bottom surface, and the left side wall of waiting to process the board of bending 100 is hugged closely to limiting plate 17's right side wall.
Further, an adjusting connecting block 30 is fixed on the top surface of the right lower die fixing block 11, a transverse stepped through hole 31 with a large left end diameter and a small right end diameter is formed at the upper part and the lower part of the adjusting connecting block 30, a buffer spring 32 and a pressing plate 33 are inserted and sleeved in the left end of the transverse stepped through hole 31, a transverse adjusting bolt 34 is fixed on the right side wall of the pressing plate 33, a screw portion of the transverse adjusting bolt 34 is screwed on an internal thread formed on the inner side wall of the right end portion of the transverse stepped through hole 31, the right end head of the adjusting bolt 34 extends out of the right end of the transverse stepped through hole 31, an upper positioning block 139 and a lower positioning block 139 are formed on the right side wall of the lower die adjusting block 13, the positioning block 139 is inserted and sleeved in the buffer spring 32, the left end of the buffer spring 32 is fixed on the right side wall of the lower die adjusting block 13, the left side wall of the pressing plate 33, the lock nut 35 is pressed against the right side wall of the adjusting attachment block 30.
Further, a processing groove 1 is formed in the middle of the right side wall of the lower die fixing block 14.
A left side wall of the lower part of the punch 24 is formed with a convex arc part 249 extending leftwards, and the left end of the convex arc part 249 and the right side wall of the compression connecting block 27 are on the same vertical plane.
When the bending plate is used, the thickness of the bending plate 100 to be processed, which can be generally punched, is 0.5mm +/-0.2 mm.
In this embodiment, the pressing cylinder 22 and the middle pressing cylinder 26 are both communicated with a control valve through oil pipes, the control valve is communicated with an oil pump through oil pipes, the oil pump is communicated with a hydraulic oil tank, the control valve and the oil pump are both electrically connected with a control host through electric connection lines, and the control host, the oil pump, the control valve and the like are all common components under the control of the control host, and are not described in detail.
This embodiment is when using, place the left part of the board 100 of bending of waiting to process on the top surface of lower mould fixed block 14, and make the right side wall of limiting plate 17 hug closely the left side wall of the board 100 of bending of waiting to process, realize the location, then, the push rod of middle part pressure cylinder 26 promotes, make the bottom surface of compressing tightly connecting block 27 press on the left part top surface of the board 100 of bending of waiting to process, realize fixedly, then, push rod through pushing down cylinder 22 promotes, make drift 24 descend, thereby will wait to process the right part of the board 100 of bending and bend downwards, the punching press targets in place when the arc chamfer portion of drift 24 presses at last inclined wall 111, the board 100 of bending of waiting to process accomplishes bending, the portion of bending of the right part at this moment is in processing recess 1.
The thickness of the bending plate 100 to be processed is equal to the distance between the left end of the convex arc part 249 and the right side wall of the lower die fixing block 14;
when the thickness of the bending plate 100 to be processed is greater than the distance between the left end of the convex arc-shaped portion 249 and the right side wall of the lower die fixing block 14, when the punch 24 descends, slight rightward deviation can be generated, when the lower end of the punch descends and contacts with the upper inclined wall surface 111, the punching position of the punch is not in place, at the moment, the buffer spring 32 retracts, the lower die adjusting block 13 can be slightly moved rightward, and the bending effect is ensured.
Meanwhile, the moving position of the limiting plate 17 can be adjusted through the two adjusting bolts 16, so that the length of the left part of the bending plate 100 to be processed, which is pressed against the top surface of the lower die fixing block 14, is adjusted, and different punching effects are met.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims (10)

1. The utility model provides a take automatically regulated's 90 jiaos of bending forming mechanism, includes PMKD (10), its characterized in that: a right lower die fixing block (11) is fixed to the top surface of the right portion of the top surface of the fixing bottom plate (10), an oblique wall surface (12) is formed on the top surface of the left end of the right lower die fixing block (11), a lower die adjusting block (13) is located above the left end of the right lower die fixing block (11), the bottom surface of the lower die adjusting block (13) is an inclined surface, and the inclined surface is pressed against the oblique wall surface (12);
the top surface of the lower die adjusting block (13) is an upper inclined wall surface (131);
a left vertical plate (20) is fixed on the top surface of the left part of the fixed bottom plate (10), an upper supporting plate (21) is fixed on the top surface of the left vertical plate (20), a lower oil cylinder (22) is fixed on the top surface of the upper supporting plate (21), a push rod of the lower oil cylinder (22) penetrates through the bottom surface of the upper supporting plate (21) and is fixed with a connecting block (23), a through groove (231) is formed in the middle of the bottom surface of the connecting block (23), the upper part of the punch (24) is inserted and sleeved in the through groove (231), and the upper part of the punch (24) is hinged to the connecting block (23) through a;
the right side of the bottom end of the punch (24) is provided with an arc-shaped chamfer part, and the arc-shaped chamfer part is pressed against the upper inclined wall surface (131).
2. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 1, characterized in that: the top surface of a fixed bottom plate (10) on the left side of the lower die adjusting block (13) is provided with a lower die fixing block (14), and the lower die fixing block (14) corresponds to the lower die adjusting block (13) in the left-right direction.
3. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 2, characterized in that: a middle connecting plate (25) is fixed on the right side wall of the middle of the left vertical plate (20), a middle pressing oil cylinder (26) is fixed on the top surface of the middle connecting plate (25), a push rod of the middle pressing oil cylinder (26) penetrates through the bottom surface of the middle connecting plate (25) and is fixed with a pressing connecting block (27), and the left portion of the bending plate (100) to be processed is clamped between the bottom surface of the pressing connecting block (27) and the top surface of the lower die fixing block (14).
4. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 3, characterized in that: the left side wall of the punch (24) is close to the right side wall of the compression connecting block (27).
5. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 1, characterized in that: the right side top surface of the through groove (231) in the bottom surface of the connecting block (23) is fixed with a limiting guide part (232), and the right side wall of the punch (24) is close to the left side wall of the limiting guide part (232).
6. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 1, characterized in that: the left part and the right part of the bottom surface of the upper supporting plate (21) are both fixed with lower guide blocks (212), the connecting block (23) is positioned between the two lower guide blocks (212), and the side wall of the connecting block (23) is tightly attached to the inner side wall of the corresponding lower guide block (212).
7. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 3, characterized in that: a vertical guide block (251) is fixed in the middle of the bottom surface of the middle connecting plate (25), a bending connecting block (261) is fixed at the end of a push rod of the middle pressing oil cylinder (26), the upper portion of the pressing connecting block (27) is fixed on the bending connecting block (261), and the left side wall of the bending connecting block (261) is tightly attached to the right side wall of the vertical guide block (251).
8. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 7, characterized in that: the left part of the top surface of PMKD (10) is fixed with main connecting block (15), lower mould fixed block (14) are fixed on the left side wall of main connecting block (15), the spiro union has two at least adjusting bolt (16) on the upper portion right side board of main connecting block (15), the tip of two adjusting bolt (16) stretches out main connecting block (15) right side wall and articulates on same limiting plate (17), the top surface of lower mould fixed block (14) is hugged closely to the bottom surface of limiting plate (17), the left side wall of waiting to process board (100) of bending is hugged closely to the right side wall of limiting plate (17).
9. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 1, characterized in that: an adjusting connecting block (30) is fixed on the top surface of the right lower die fixing block (11), a transverse stepped through hole (31) with a large left end diameter and a small right end diameter is formed in the upper portion and the lower portion of the adjusting connecting block (30), a buffer spring (32) and a pressing plate (33) are sleeved in the left end of the transverse stepped through hole (31), a transverse adjusting bolt (34) is fixed on the right side wall of the pressing plate (33), the screw portion of the transverse adjusting bolt (34) is screwed on an internal thread formed on the inner side wall of the right end portion of the transverse stepped through hole (31), the right end portion of the transverse adjusting bolt (34) extends out of the right end of the transverse stepped through hole (31), an upper positioning block (139) and a lower positioning block (139) are formed on the right side wall of the lower die adjusting block (13), the positioning blocks (139) are sleeved in the buffer spring (32), and the left end of the buffer spring (32) is, the left side wall of the pressure plate (33) is pressed against the right end face of the buffer spring (32), the transverse adjusting bolt (34) is screwed with a locking nut (35), and the locking nut (35) is pressed against the right side wall of the adjusting connecting block (30).
10. The automatic 90-degree angle bending forming mechanism with the automatic adjustment function according to claim 2, characterized in that: and a processing groove (1) is formed in the middle of the right side wall of the lower die fixing block (14).
CN201921406328.8U 2019-08-28 2019-08-28 90-degree angle bending forming mechanism with automatic adjustment function Active CN210586533U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921406328.8U CN210586533U (en) 2019-08-28 2019-08-28 90-degree angle bending forming mechanism with automatic adjustment function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921406328.8U CN210586533U (en) 2019-08-28 2019-08-28 90-degree angle bending forming mechanism with automatic adjustment function

Publications (1)

Publication Number Publication Date
CN210586533U true CN210586533U (en) 2020-05-22

Family

ID=70702243

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921406328.8U Active CN210586533U (en) 2019-08-28 2019-08-28 90-degree angle bending forming mechanism with automatic adjustment function

Country Status (1)

Country Link
CN (1) CN210586533U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110405012A (en) * 2019-08-28 2019-11-05 东莞市鼎通精密五金股份有限公司 A kind of 90 ° of angle bending forming mechanisms of band automatic adjustment
CN113441627A (en) * 2021-06-28 2021-09-28 青岛华翔汽车金属部件有限公司 Car seat is with fixed seat support mould of bending

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110405012A (en) * 2019-08-28 2019-11-05 东莞市鼎通精密五金股份有限公司 A kind of 90 ° of angle bending forming mechanisms of band automatic adjustment
CN110405012B (en) * 2019-08-28 2024-06-18 东莞市鼎通精密五金股份有限公司 90-Degree angle bending forming mechanism with automatic adjustment function
CN113441627A (en) * 2021-06-28 2021-09-28 青岛华翔汽车金属部件有限公司 Car seat is with fixed seat support mould of bending

Similar Documents

Publication Publication Date Title
CN210586533U (en) 90-degree angle bending forming mechanism with automatic adjustment function
CN201124201Y (en) Non-female die piercing die for pipe with helical type male die end
CN204320948U (en) A kind of angle diel
CN201669341U (en) Z-shaped bending mold
CN110405012B (en) 90-Degree angle bending forming mechanism with automatic adjustment function
CN218744320U (en) Sheet metal part normal direction cut-out press
CN109420707A (en) A kind of drawing die and its punch-pin
CN205096352U (en) Inclined plane cut -out press
CN215879627U (en) Antenna is bent and is used frock
CN214391852U (en) Swing bending mechanism, stamping die and stamping equipment
CN110560537B (en) Hole flanging mechanism and hole flanging process of automobile panel stamping die
CN109702096B (en) Bending pressure device with replaceable pressure head
CN212021646U (en) Stamping die of ABS draw-bar box
CN205816552U (en) Adjustable bending structure
CN208866221U (en) Expansible stamping die
CN217964392U (en) Special stamping die for pipe fitting forming
CN204584003U (en) Cylindrical member side opening punch die
CN211490491U (en) Tool structure suitable for machining cylinder surface of compressor cylinder
CN215315088U (en) Seamless bending and groove forming device for sheet metal parts
CN211888552U (en) Bending clamp for metal material
CN219401957U (en) Bending and punching integrated forming die
CN204396643U (en) Bending mold and fixing structure for bearing plate
CN205798127U (en) A kind of bending plate punching mechanism
CN216705753U (en) Universal fixture for right-angle bending forming of cylindrical lead
CN212190703U (en) Plate body bending die forming mechanism with lower die provided with buffer mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 523000 No. 7 Yinzhu Road, Zhouwu Community, Dongcheng Street, Dongguan City, Guangdong Province

Patentee after: Dongguan Dingtong precision Polytron Technologies Inc.

Address before: 523000 No. 7 Yinzhu Road, Zhouwu Community, Dongcheng Street, Dongguan City, Guangdong Province

Patentee before: DONGGUAN DINGTONG PRECISION HARDWARE Co.,Ltd.