CN214471451U - Pull-plug force testing machine - Google Patents
Pull-plug force testing machine Download PDFInfo
- Publication number
- CN214471451U CN214471451U CN202120292492.1U CN202120292492U CN214471451U CN 214471451 U CN214471451 U CN 214471451U CN 202120292492 U CN202120292492 U CN 202120292492U CN 214471451 U CN214471451 U CN 214471451U
- Authority
- CN
- China
- Prior art keywords
- seat
- mounting seat
- adjusting
- clamping
- clamping block
- 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
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 230000002146 bilateral effect Effects 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009661 fatigue test Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a plugging force testing machine, which comprises a case, a touch screen, a guide post, an upper clamping component, a lower clamping component, a driving device and a limiting component; the touch screen is arranged on one side of the case; two guide posts are arranged and are fixed above the case in a bilateral symmetry manner; the upper clamping assembly comprises an upper mounting seat, a pressure sensor and an upper clamp; the upper mounting seat is arranged on the upper part of the guide pillar; the pressure sensor is arranged below the upper mounting seat; the upper clamp is fixed below the pressure sensor; the lower clamping assembly comprises a lower mounting seat, an XY adjusting platform and a lower clamp; two ends of the lower mounting seat are connected to the lower part of the guide pillar in a sliding manner; the XY adjusting platform is fixed above the lower mounting seat; the lower clamp is fixed above the XY adjusting platform; the power output end of the driving device is connected with the lower mounting seat; the limiting component is arranged between the lower mounting seat and the case and limits the up-and-down movement of the lower mounting seat; embodies the utility model discloses strong adaptability can be steadily pull out to the product of different specifications and insert test and fatigue test.
Description
Technical Field
The utility model relates to a test equipment technical field, in particular to pull out and insert power testing machine.
Background
The force testing device is used for testing the force required by pulling out and the force required by inserting between two objects during the insertion and extraction force testing, and for the insertion and extraction force testing device, the following defects exist in the past: 1. the test is single, the object needs to be subjected to a fatigue resistance test besides a plug-pull force test, and the test efficiency can be reduced by separately carrying out the test; 2. the test is not suitable for the tests of various product specifications; 3. the clamping is unstable. Improvements are therefore needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pull out and insert power testing machine in order to solve the background art and mention the problem.
In order to achieve the above object, the present invention provides the following technical solutions:
a plugging force testing machine comprises a case, a touch screen, a guide pillar, an upper clamping assembly, a lower clamping assembly, a driving device and a limiting assembly; the touch screen is arranged on one side of the case; the two guide posts are arranged and are fixed above the case in a bilateral symmetry manner; the upper clamping assembly is arranged at the upper part of the guide pillar; the upper clamping assembly comprises an upper mounting seat, a pressure sensor and an upper clamp; the left end and the right end of the upper mounting seat are provided with elastic clamp holes matched with the guide columns; the upper mounting seat is mounted on the guide post through an elastic clamp hole and is locked and fixed through a screw; the pressure sensor is arranged below the upper mounting seat; the upper clamp is fixed below the pressure sensor; the lower clamping assembly is arranged at the lower part of the guide pillar; the lower clamping assembly comprises a lower mounting seat, an XY adjusting platform and a lower clamp; two ends of the lower mounting seat are respectively connected with the guide pillars in a sliding manner; the XY adjusting platform is fixed above the lower mounting seat; the lower clamp is fixed above the XY adjusting platform; the power output end of the driving device is connected with the lower mounting seat; the limiting component is arranged between the lower mounting seat and the case and limits the vertical movement of the lower mounting seat.
For further description of the present invention, the upper clamp includes a first clamping seat, a first left clamping block, a first right clamping block, a first left adjusting rod and a first right adjusting rod; the first clamping seat is fixed below the pressure sensor; the first left clamping block and the first right clamping block are distributed in bilateral symmetry and are respectively connected to the bottom of the first clamping seat in a sliding manner; the first left adjusting rod is in threaded connection with the first clamping seat, and one end of the first left adjusting rod is rotatably arranged on the first left clamping block; the first right adjusting rod is in threaded connection with the first clamping seat, and one end of the first right adjusting rod is rotatably arranged on the first right clamping block; the lower clamp comprises a second clamp seat, a second left clamping block, a second right clamping block, a second left adjusting rod and a second right adjusting rod; the second clamping seat is fixed above the XY adjusting platform; the first left clamping block and the first right clamping block are distributed in bilateral symmetry and are respectively connected above the second clamping seat in a sliding manner; the second left adjusting rod is in threaded connection with the second clamping seat, and one end of the second left adjusting rod is rotatably arranged on the second left clamping block; the second right adjusting rod is in threaded connection with the second clamping seat, and one end of the second right adjusting rod is rotatably arranged on the second right clamping block.
For further description of the present invention, the opposite sides of the first left clamping block and the first right clamping block are respectively provided with a first clamping groove which runs through from front to back; and one side of the second left clamping block, which is opposite to the second right clamping block, is respectively provided with a second clamping groove which penetrates through the front and the back.
For further description of the present invention, the XY adjustment platform includes a tray body, an X-axis adjustment assembly and a Y-axis adjustment assembly; the tray body is fixed above the lower mounting seat; the X-axis adjusting assembly comprises a first adjusting seat, an X-axis adjusting rod and a first sliding block; the first adjusting seat is fixed above the tray body; the first sliding block is connected with the first adjusting seat in a sliding manner; the X-axis adjusting rod is rotatably connected to the first adjusting seat and is in threaded connection with the first sliding block; the Y-axis adjusting assembly comprises a second adjusting seat, a Y-axis adjusting rod and a second sliding block; the second adjusting seat is fixed above the first sliding block; the second sliding block is connected with the second adjusting seat in a sliding manner; the Y-axis adjusting rod is rotatably connected to the second adjusting seat and is in threaded connection with the second sliding block.
For further description of the present invention, the driving device includes a motor, a synchronous wheel, a synchronous belt and a lead screw; the motor is fixed in the case and is connected with the screw rod through a synchronous wheel and a synchronous belt; the bottom of the lower mounting seat is provided with a sleeve; the sleeve is sleeved on the screw rod and is in threaded connection with the screw rod.
For further description of the present invention, the limiting component comprises a rod body and a plurality of limiting rings; the rod body is positioned on one side of the lower mounting seat and penetrates into the case; the limiting ring is sleeved and fixed on the rod body; one side of the lower mounting seat is provided with a connecting part; the connecting part is sleeved on the rod body and clamped and fixed by the two limiting rings; the rod body is provided with limiting rings corresponding to the inner side and the outer side of the case.
The utility model has the advantages that:
the utility model discloses a drive arrangement's work number of times can be adjusted to the touch-sensitive screen to pull out repeatedly to insert the test to the work piece, pressure sensor will pull out the numerical value that detects in the insertion process and send the touch-sensitive screen to make statistics of in the testing process, so this design both can detect and pull out the power of inserting, also can carry out fatigue detection, and to the product of different specifications, then through adjusting the upper and lower height of mount pad and adjust down the front and back direction of controlling of anchor clamps through XY adjustment platform and adapt to, it is convenient to adjust.
Drawings
FIG. 1 is an overall structure of the present invention;
FIG. 2 is a front view of the partial structure of the present invention;
FIG. 3 is a right side view of the partial structure of the present invention;
FIG. 4 is a structural diagram of the upper clamping assembly of the present invention;
fig. 5 is a structural diagram of the lower clamping assembly of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings:
as shown in fig. 1-5, a plugging force tester comprises a chassis 1, a touch screen 2, a guide post 3, an upper clamping assembly 4, a lower clamping assembly 5, a driving device 6 and a limiting assembly 7; the touch screen 2 is arranged on one side of the case 1; the two guide posts 3 are arranged and are fixed above the case 1 in a bilateral symmetry manner; the upper clamping component 4 is arranged at the upper part of the guide pillar 3; the upper clamping assembly 4 comprises an upper mounting seat 41, a pressure sensor 42 and an upper clamp 43; the left end and the right end of the upper mounting seat 41 are provided with elastic clamp holes 411 matched with the guide post 3; the upper mounting seat 41 is mounted on the guide post 3 through an elastic clamp hole 411 and is locked and fixed through a screw; the pressure sensor 42 is arranged below the upper mounting seat 41; the upper clamp 43 is fixed below the pressure sensor 42; the lower clamping assembly 5 is arranged at the lower part of the guide pillar 3; the lower clamping assembly 5 comprises a lower mounting seat 51, an XY adjusting platform 52 and a lower clamp 53; two ends of the lower mounting seat 51 are respectively connected with the guide posts 3 in a sliding manner; the XY-adjusting platform 52 is fixed above the lower mounting seat 51; the lower jig 53 is fixed above the XY adjustment table 52; the power output end of the driving device 6 is connected with the lower mounting seat 51; the limiting component 7 is arranged between the lower mounting seat 51 and the case 1 to limit the up-and-down movement of the lower mounting seat 51; the product that needs to carry out the plug-in test is fixed with lower anchor clamps 53 centre gripping through last anchor clamps 43, can adjust drive arrangement 6's number of times through touch-sensitive screen 2, thereby pull out the plug-in test repeatedly to the work piece, pressure sensor 42 will pull out the numerical value that detects in the process of inserting and count touch-sensitive screen 2, therefore this design both can detect the plug-in force, also can carry out fatigue detection, and to the product of different specifications, then through adjusting the upper and lower height of mount pad 41 and adjust the left and right sides fore-and-aft direction of lower anchor clamps 53 through XY adjustment platform 52 and adapt, it is convenient to adjust.
The upper clamp 43 comprises a first clamp seat 431, a first left clamping block 432, a first right clamping block 433, a first left adjusting rod 434 and a first right adjusting rod 435; the first holder 431 is fixed below the pressure sensor 42; the first left clamping block 432 and the first right clamping block 433 are distributed in bilateral symmetry and are respectively connected to the bottom of the first clamping seat 431 in a sliding manner; the first left adjusting rod 434 is in threaded connection with the first clamping base 431, and one end of the first left adjusting rod is rotatably arranged on the first left clamping block 432; the first right adjusting rod 435 is in threaded connection with the first clamping base 431, and one end of the first right adjusting rod is rotatably arranged on the first right clamping block 433; the lower clamp 53 comprises a second clamp holder 531, a second left clamping block 532, a second right clamping block 533, a second left adjusting rod 534 and a second right adjusting rod 535; the second holder 531 is fixed above the XY adjustment stage 52; the first left clamping block 432 and the first right clamping block 433 are distributed in bilateral symmetry and are respectively connected above the second clamping seat 531 in a sliding manner; the second left adjusting rod 534 is in threaded connection with the second clamping base 531, and one end of the second left adjusting rod 534 is rotatably installed on the second left clamping block 532; the second right adjusting rod 535 is in threaded connection with the second clamping base 531, one end of the second right adjusting rod is rotatably installed on the second right clamping block 533, the first left adjusting rod 434 is used for adjusting the left and right positions of the first left clamping block 432, the first right adjusting rod 435 is used for adjusting the left and right positions of the first right clamping block 433, the second left adjusting rod 534 is used for adjusting the left and right positions of the second left clamping block 532, the second right adjusting rod 535 is used for adjusting the left and right positions of the second right clamping block 533, one end of a product is clamped by the first left clamping block 432 and the first right clamping block, and the other end of the product is clamped by the second left clamping block 532 and the second right clamping block 533.
A first clamping groove 4321 and a first clamping groove 4331 which penetrate through the front and the back are respectively arranged on one side of the first left clamping block 432 opposite to the first right clamping block 433; second clamping grooves 5321 and 5331 which penetrate through the front and the back are respectively arranged on the opposite sides of the second left clamping block 532 and the second right clamping block 533; the end of the product is provided with a flange, and the flange position of the product is clamped by the first clamping grooves 4321 and 4331 and the second clamping grooves 5321 and 5331 which penetrate through the end of the product, so that the clamping is stable.
The XY adjustment platform 52 comprises a disc 521, an X-axis adjustment assembly 522 and a Y-axis adjustment assembly 523; the tray body 521 is fixed above the lower mounting seat 51; the X-axis adjusting assembly 522 includes a first adjusting seat 5221, an X-axis adjusting rod 5222 and a first sliding block 5223; the first adjusting seat 5221 is fixed above the tray body 521; the first sliding block 5223 is slidably connected to the first adjusting seat 5221; the X-axis adjusting rod 5222 is rotatably connected to the first adjusting seat 5221 and is in threaded connection with the first sliding block 5223; the Y-axis adjusting assembly 523 comprises a second adjusting seat 5231, a Y-axis adjusting rod 5232 and a second sliding block 5233; the second adjusting seat 5231 is fixed above the first sliding block 5223; the second sliding block 5233 is slidably connected to the second adjusting seat 5231; the Y-axis adjusting lever 5232 is rotatably coupled to the second adjusting seat 5231 and is threadedly coupled to the second slide block 5233, such that the left and right positions of the lower clamp 53 are adjusted by rotating the X-axis adjusting lever 5222, and the front and rear positions of the lower clamp 53 are adjusted by rotating the Y-axis adjusting lever 5232.
The driving device 6 comprises a motor, a synchronous wheel, a synchronous belt and a screw rod; the motor is fixed in the case 1 and is connected with the screw rod through a synchronous wheel and a synchronous belt; the bottom of the lower mounting seat 51 is provided with a sleeve 511; the sleeve 511 is sleeved on the screw rod and is in threaded connection with the screw rod; the motor drives the screw rod to rotate through the transmission of the synchronous wheel and the synchronous belt, the screw rod is in threaded connection with the sleeve 511, the sleeve 511 is driven to move up and down, and therefore the lower mounting seat 51 is controlled to move up and down.
The limiting assembly 7 comprises a rod body 71 and a plurality of limiting rings 72; the rod body 71 is positioned at one side of the lower mounting seat 51 and penetrates into the case 1; the limiting ring 72 is sleeved and fixed on the rod body 71; a connecting part 512 is arranged on one side of the lower mounting seat 51; the connecting part 512 is sleeved on the rod body 71 and is clamped and fixed by two limiting rings 72; the rod body 71 is provided with limiting rings 72 corresponding to the inner side and the outer side of the case 1, the rod body 71 moves synchronously in the up-and-down movement process of the lower mounting seat 51, and the moving distance is limited by the limiting rings 72 on the rod body 71 and positioned on the inner side and the outer side of the case 1.
The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a pull out and insert force testing machine which characterized in that: the device comprises a case, a touch screen, a guide post, an upper clamping assembly, a lower clamping assembly, a driving device and a limiting assembly; the touch screen is arranged on one side of the case; the two guide posts are arranged and are fixed above the case in a bilateral symmetry manner; the upper clamping assembly is arranged at the upper part of the guide pillar; the upper clamping assembly comprises an upper mounting seat, a pressure sensor and an upper clamp; the left end and the right end of the upper mounting seat are provided with elastic clamp holes matched with the guide columns; the upper mounting seat is mounted on the guide post through an elastic clamp hole and is locked and fixed through a screw; the pressure sensor is arranged below the upper mounting seat; the upper clamp is fixed below the pressure sensor; the lower clamping assembly is arranged at the lower part of the guide pillar; the lower clamping assembly comprises a lower mounting seat, an XY adjusting platform and a lower clamp; two ends of the lower mounting seat are respectively connected with the guide pillars in a sliding manner; the XY adjusting platform is fixed above the lower mounting seat; the lower clamp is fixed above the XY adjusting platform; the power output end of the driving device is connected with the lower mounting seat; the limiting component is arranged between the lower mounting seat and the case and limits the vertical movement of the lower mounting seat.
2. The machine according to claim 1, wherein: the upper clamp comprises a first clamping seat, a first left clamping block, a first right clamping block, a first left adjusting rod and a first right adjusting rod; the first clamping seat is fixed below the pressure sensor; the first left clamping block and the first right clamping block are distributed in bilateral symmetry and are respectively connected to the bottom of the first clamping seat in a sliding manner; the first left adjusting rod is in threaded connection with the first clamping seat, and one end of the first left adjusting rod is rotatably arranged on the first left clamping block; the first right adjusting rod is in threaded connection with the first clamping seat, and one end of the first right adjusting rod is rotatably arranged on the first right clamping block; the lower clamp comprises a second clamp seat, a second left clamping block, a second right clamping block, a second left adjusting rod and a second right adjusting rod; the second clamping seat is fixed above the XY adjusting platform; the first left clamping block and the first right clamping block are distributed in bilateral symmetry and are respectively connected above the second clamping seat in a sliding manner; the second left adjusting rod is in threaded connection with the second clamping seat, and one end of the second left adjusting rod is rotatably arranged on the second left clamping block; the second right adjusting rod is in threaded connection with the second clamping seat, and one end of the second right adjusting rod is rotatably arranged on the second right clamping block.
3. The insertion and extraction force tester according to claim 2, wherein: one side of the first left clamping block, which is opposite to the first right clamping block, is provided with a first clamping groove which penetrates through the first left clamping block and the first right clamping block from front to back; and one side of the second left clamping block, which is opposite to the second right clamping block, is respectively provided with a second clamping groove which penetrates through the front and the back.
4. The machine according to claim 1, wherein: the XY adjusting platform comprises a disc body, an X-axis adjusting assembly and a Y-axis adjusting assembly; the tray body is fixed above the lower mounting seat; the X-axis adjusting assembly comprises a first adjusting seat, an X-axis adjusting rod and a first sliding block; the first adjusting seat is fixed above the tray body; the first sliding block is connected with the first adjusting seat in a sliding manner; the X-axis adjusting rod is rotatably connected to the first adjusting seat and is in threaded connection with the first sliding block; the Y-axis adjusting assembly comprises a second adjusting seat, a Y-axis adjusting rod and a second sliding block; the second adjusting seat is fixed above the first sliding block; the second sliding block is connected with the second adjusting seat in a sliding manner; the Y-axis adjusting rod is rotatably connected to the second adjusting seat and is in threaded connection with the second sliding block.
5. The machine according to claim 1, wherein: the driving device comprises a motor, a synchronous wheel, a synchronous belt and a screw rod; the motor is fixed in the case and is connected with the screw rod through a synchronous wheel and a synchronous belt; the bottom of the lower mounting seat is provided with a sleeve; the sleeve is sleeved on the screw rod and is in threaded connection with the screw rod.
6. The machine according to claim 1, wherein: the limiting assembly comprises a rod body and a plurality of limiting rings; the rod body is positioned on one side of the lower mounting seat and penetrates into the case; the limiting ring is sleeved and fixed on the rod body; one side of the lower mounting seat is provided with a connecting part; the connecting part is sleeved on the rod body and clamped and fixed by the two limiting rings; the rod body is provided with limiting rings corresponding to the inner side and the outer side of the case.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120292492.1U CN214471451U (en) | 2021-02-02 | 2021-02-02 | Pull-plug force testing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120292492.1U CN214471451U (en) | 2021-02-02 | 2021-02-02 | Pull-plug force testing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN214471451U true CN214471451U (en) | 2021-10-22 |
Family
ID=78142410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120292492.1U Active CN214471451U (en) | 2021-02-02 | 2021-02-02 | Pull-plug force testing machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN214471451U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4235129A1 (en) * | 2022-02-28 | 2023-08-30 | Aptiv Technologies Limited | Plugging force test apparatus |
CN116879045A (en) * | 2023-09-07 | 2023-10-13 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
-
2021
- 2021-02-02 CN CN202120292492.1U patent/CN214471451U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4235129A1 (en) * | 2022-02-28 | 2023-08-30 | Aptiv Technologies Limited | Plugging force test apparatus |
GB2616076A (en) * | 2022-02-28 | 2023-08-30 | Aptiv Tech Ltd | Plugging force test apparatus |
GB2616076B (en) * | 2022-02-28 | 2024-04-10 | Aptiv Tech Ltd | Plugging force test apparatus |
CN116879045A (en) * | 2023-09-07 | 2023-10-13 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
CN116879045B (en) * | 2023-09-07 | 2023-12-08 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN214471451U (en) | Pull-plug force testing machine | |
CN108673092A (en) | Press-loading device on the line of differential gear and bearing | |
CN108994344B (en) | A kind of automobile brake disc drilling device | |
CN104656007A (en) | Automation probe testing equipment capable of accurately positioning by CCD | |
CN210789917U (en) | Shaft sleeve pressing equipment | |
CN204495964U (en) | A kind of CCD pinpoint robotization pin measurement equipment | |
CN214669507U (en) | Automatic wire pulling device for piece to be tested and power supply testing equipment | |
CN110940919A (en) | Automatic test equipment for plastic package motor | |
CN110666491A (en) | Torsional spring locating pin assembly devices | |
CN115056004A (en) | Automatic fixed CNC frock tool | |
CN215931499U (en) | Textile testing fracture strength testing and sampling tool | |
CN115582664A (en) | Battery frame multistation welding tool set | |
CN213917960U (en) | A fixed tool for work piece equipment | |
CN213658786U (en) | High-precision circuit board test fixture | |
WO2019037372A1 (en) | Testing apparatus for reliability performance screening of large-batch hard disks | |
CN209829603U (en) | Double-station square boss detection machine | |
CN112254993A (en) | Automatic test bed for hydraulic clamp brake adjuster | |
CN218766556U (en) | Heat-sealing peeling tester | |
CN219104598U (en) | Chip crack resistance stamping test fixture | |
CN111537354A (en) | Low-cost bolt tension detection device for power transmission | |
CN221173843U (en) | Notebook computer interface test fixture and test device | |
CN220933052U (en) | Thimble testing device for electric vehicle controller | |
CN219131386U (en) | Support ball head mixing-preventing spin riveting equipment | |
CN219119589U (en) | Positioning and locking device for upright post | |
CN217211844U (en) | Fatigue life testing device for reaction rod support |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: Room 101, Building 1, No. 8 Xingui Road, Lin Village, Tangxia Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Gaoxiang Mechanical Equipment Co.,Ltd. Address before: 523000 workshop A2, No.77, Tangxia Avenue South, Tangxia Town, Dongguan City, Guangdong Province Patentee before: Dongguan Gaoxiang Mechanical Equipment Co.,Ltd. |