CN205310292U - Mechanical arm - Google Patents
Mechanical arm Download PDFInfo
- Publication number
- CN205310292U CN205310292U CN201620071621.3U CN201620071621U CN205310292U CN 205310292 U CN205310292 U CN 205310292U CN 201620071621 U CN201620071621 U CN 201620071621U CN 205310292 U CN205310292 U CN 205310292U
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- China
- Prior art keywords
- horizontal
- arm
- support plate
- mount pad
- pair
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- Expired - Fee Related
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- Jigs For Machine Tools (AREA)
Abstract
The utility model provides a mechanical arm, a serial communication port, including the mount pad, be equipped with horizontal guide rail on this mount pad, but slidable mounting there is the slider on this horizontal guide rail, is equipped with horizontal cylinder on the slider, wear to be equipped with horizontal screw on this slider, this horizontal screw is connected with the motor, is equipped with left support plate on the left of this mount pad, and this horizontal screw left end passes through that the bearing is rotatable to be installed left support plate is last, the mount pad right side be equipped with the right branch fagging, articulatedly on this right branch fagging install a pair of arm, be equipped with splint on this a pair of arm, a pair of arm longitudinal symmetry that leads out distributes, install horizontal push rod on the horizontal cylinder output shaft, this horizontal push rod right -hand member is worn out right two hinge joint linkage of rethread are respectively with a pair of behind the right branch fagging the arm is articulated, a pair of leading out is equipped with reset spring between the arm. The utility model discloses it can soon can be slow to press from both sides tight speed when using, and adaptability is better, uses more extensively.
Description
Technical field
The utility model belongs to a kind of machinery arm.
Background technology
Existing machinery arm has a variety of; but great majority are all adopt pneumatic actuation; clamp speeds is quickly; surging force is big; easily cause wounding to product, but in actual application, in order to protect product to be crushed; need conservative control clamping speed, and existing machinery arm still can not realize.
Practical novel content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide a kind of machinery arm, and its clamp speeds can be fast or slow, better adaptability, applies more extensive.
For achieving the above object, the utility model provides a kind of machinery arm, it is characterized in that, comprise mount pad (1), this mount pad (1) is provided with horizontal guide rail (2), this horizontal guide rail (2) is slidably provided with slide block (3), slide block (3) is provided with horizontal air cylinder (31), this slide block (3) is equipped with horizontal screw bolt (4), this horizontal screw bolt (4) is connected with motor (41), this mount pad (1) left side is provided with left support plate (11), this horizontal screw bolt (4) left end is rotatably arranged on described left support plate (11) by bearing (21), described mount pad (1) right side is provided with right support plate (12), this right support plate (12) is above hinged is provided with one pair of arm (5), arm (5) one is provided with clamping plate (6) by this, described one is symmetrical up and down to drawing arm (5), described horizontal air cylinder (31) output shaft is provided with horizontal push (7), this horizontal push (7) right-hand member is hinged to described arm (5) with one respectively by two articulated linkage (8) again after passing described right support plate (12) to the right, described one to being provided with return spring (10) between drawing arm (5). adopt such scheme, horizontal screw bolt (4) is driven to coordinate bearing (21) to rotate on described left support plate (11) by motor (41), and threaded engagement band movable slider (3) is along horizontal guide rail (2) left and right horizontal to-and-fro movement, and promote horizontal air cylinder (31) and horizontal push (7) to be synchronized with the movement together simultaneously, in addition, this horizontal air cylinder (31) itself is also by the flexible motion in horizontal push (7) left and right. and during horizontal push (7) motion, make one described arm (5) is relatively clamped or unclamped by two articulated linkage (8), the automatic clamping to product can be realized or unclamp.In above-mentioned moving process, there is multi-motion state, the first, this motor (41) works independently, and horizontal push (7) left and right can be driven to move continuously; 2nd kind, this horizontal air cylinder (31) works independently, and can drive the flexible motion in horizontal push (7) left and right; The third, this horizontal air cylinder (31) and motor (41) cooperating, this motor (41) can forward or reverse, and this horizontal air cylinder (31) can be overhanging or inside contract, therefore this third there are different four kinds of kinestates. Therefore this machinery arm, can according to the individual character of product and feature, can at a slow speed, can be quick, large piece article can be clamped, also can clamp small article, better adaptability, apply more extensive.
Further, described left support plate (11) being provided with displacement sensor (9), this displacement sensor (9) measuring junction is connected with described slide block (3). Can detect and control this in real time one to the clamp position of arm (5) and the size of clamping distance.
Further, described motor (41) is connected with described horizontal screw bolt (4) by a variator (42). Change horizontal screw bolt (4) rotating speed by variator (42), and then change response and Feed servo system speed.
Further, described clamping plate (6) inward facing surface is provided with arc-shaped concave (61), and this arc-shaped concave (61) is distributed with anti-skidding projection (62). Can increasing circumference clamping scope by arc-shaped concave (61), this anti-skidding projection (62) can prevent product from dripping.
Further, described horizontal air cylinder (31) output shaft is connected with horizontal push (7) by telescopic adjustment bar (32). According to the size of clamping product, adapt can be made by telescopic adjustment bar (32), meets the clamping demand of variant production size.
Further, described left support plate (11) is provided with the Connection Block (111) extended to the left. Can be easy to install and replace.
Further, described Connection Block (111) is offered the connection through hole (112) of Polygons. Connect by Polygons pin, anti-rotation effect can be played.
The beneficial effects of the utility model are: the utility model have structure simple, easy to use, conceive the features such as ingenious; There is multi-motion state in this machinery arm, can according to the individual character of product and feature, can at a slow speed, can be quick, large piece article can be clamped, also can clamp small article, better adaptability, apply more extensive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1: a kind of machinery arm, it is characterized in that, comprise mount pad 1, this mount pad 1 is provided with horizontal guide rail 2, this horizontal guide rail 2 is slidably provided with slide block 3, slide block 3 is provided with horizontal air cylinder 31, this slide block 3 is equipped with horizontal screw bolt 4, this horizontal screw bolt 4 is connected with motor 41, it is provided with left support plate 11 on the left of this mount pad 1, this horizontal screw bolt 4 left end is rotatably arranged on described left support plate 11 by bearing 21, it is provided with right support plate 12 on the right side of described mount pad 1, hinged on this right support plate 12 one pair of arm 5 is installed, arm 5 one is provided with clamping plate 6 by this, described one is symmetrical to drawing arm about 5, described horizontal air cylinder 31 output shaft is provided with horizontal push 7, this horizontal push 7 right-hand member is hinged to described arm 5 with one respectively by two articulated linkage 8 again after passing described right support plate 12 to the right, described one to being provided with return spring 10 between drawing arm 5. adopt such scheme, horizontal screw bolt 4 is driven to coordinate bearing 21 to rotate on described left support plate 11 by motor 41, and threaded engagement band movable slider 3 is along horizontal guide rail 2 left and right horizontal to-and-fro movement, and promote horizontal air cylinder 31 to be synchronized with the movement together with horizontal push 7 simultaneously, in addition, this horizontal air cylinder 31 itself is also by the flexible motion of horizontal push about 7.And horizontal push 7 is when moving, makes one described arm 5 is relatively clamped or unclamped by two articulated linkage 8, the automatic clamping to product can be realized or unclamp. In above-mentioned moving process, there is multi-motion state, the first, this motor 41 works independently, and horizontal push about 7 can be driven to move continuously; 2nd kind, this horizontal air cylinder 31 works independently, and can drive the flexible motion of horizontal push about 7; The third, this horizontal air cylinder 31 and motor 41 cooperating, this motor 41 can forward or reverse, and this horizontal air cylinder 31 can be overhanging or inside contract, therefore this third there are different four kinds of kinestates. Therefore this machinery arm, can according to the individual character of product and feature, can at a slow speed, can be quick, large piece article can be clamped, also can clamp small article, better adaptability, apply more extensive.
Further, described left support plate 11 being provided with displacement sensor 9, this displacement sensor 9 measuring junction is connected with described slide block 3. Can detect and control this in real time one to the clamp position of arm 5 and the size of clamping distance.
Further, described motor 41 is connected with described horizontal screw bolt 4 by a variator 42. Change horizontal screw bolt 4 rotating speed by variator 42, and then change response and Feed servo system speed.
Further, described clamping plate 6 inward facing surface is provided with arc-shaped concave 61, and this arc-shaped concave 61 is distributed with anti-skidding protruding 62. Can increasing circumference clamping scope by arc-shaped concave 61, this anti-skidding protruding 62 can prevent product from dripping.
Further, described horizontal air cylinder 31 output shaft is connected with horizontal push 7 by telescopic adjustment bar 32. According to the size of clamping product, adapt can be made by telescopic adjustment bar 32, meets the clamping demand of variant production size.
Further, described left support plate 11 is provided with the Connection Block 111 extended to the left. Can be easy to install and replace.
Further, described Connection Block 111 is offered the connection through hole 112 of Polygons. Connect by Polygons pin, anti-rotation effect can be played.
Utilize technical scheme described in the utility model, or the technician of this area is under the inspiration of technical solutions of the utility model, design similar technical scheme, and reach above-mentioned technique effect, be all fall into protection domain of the present utility model.
Claims (7)
1. a mechanical arm, it is characterized in that, comprise mount pad (1), this mount pad (1) is provided with horizontal guide rail (2), this horizontal guide rail (2) is slidably provided with slide block (3), slide block (3) is provided with horizontal air cylinder (31), this slide block (3) is equipped with horizontal screw bolt (4), this horizontal screw bolt (4) is connected with motor (41), this mount pad (1) left side is provided with left support plate (11), this horizontal screw bolt (4) left end is rotatably arranged on described left support plate (11) by bearing (21), described mount pad (1) right side is provided with right support plate (12), this right support plate (12) is above hinged is provided with one pair of arm (5), arm (5) one is provided with clamping plate (6) by this, described one is symmetrical up and down to drawing arm (5), described horizontal air cylinder (31) output shaft is provided with horizontal push (7), this horizontal push (7) right-hand member is hinged to described arm (5) with one respectively by two articulated linkage (8) again after passing described right support plate (12) to the right, described one to being provided with return spring (10) between drawing arm (5).
2. a kind of machinery arm as claimed in claim 1, it is characterised in that, described left support plate (11) is provided with displacement sensor (9), this displacement sensor (9) measuring junction is connected with described slide block (3).
3. a kind of machinery arm as claimed in claim 1, it is characterised in that, described motor (41) is connected with described horizontal screw bolt (4) by a variator (42).
4. a kind of machinery arm as claimed in claim 1, it is characterised in that, described clamping plate (6) inward facing surface is provided with arc-shaped concave (61), and this arc-shaped concave (61) is distributed with anti-skidding projection (62).
5. a kind of machinery arm as according to any one of claim 1-4, it is characterised in that, described horizontal air cylinder (31) output shaft is connected with horizontal push (7) by telescopic adjustment bar (32).
6. a kind of machinery arm as claimed in claim 1, it is characterised in that, described left support plate (11) is provided with the Connection Block (111) extended to the left.
7. a kind of machinery arm as claimed in claim 6, it is characterised in that, described Connection Block (111) is offered the connection through hole (112) of Polygons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620071621.3U CN205310292U (en) | 2016-01-26 | 2016-01-26 | Mechanical arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620071621.3U CN205310292U (en) | 2016-01-26 | 2016-01-26 | Mechanical arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205310292U true CN205310292U (en) | 2016-06-15 |
Family
ID=56205863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620071621.3U Expired - Fee Related CN205310292U (en) | 2016-01-26 | 2016-01-26 | Mechanical arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205310292U (en) |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710892A (en) * | 2016-03-24 | 2016-06-29 | 青岛黄海学院 | Mechanical arm device of automatic device |
| CN106043861A (en) * | 2016-07-28 | 2016-10-26 | 湖南文理学院 | Automatic express package packaging machine and packaging method thereof |
| CN106112844A (en) * | 2016-08-23 | 2016-11-16 | 无锡市东赫金属制品有限公司 | A kind of pliers being easy to safe handling |
| CN106523493A (en) * | 2016-11-15 | 2017-03-22 | 大同新成新材料股份有限公司 | Covering machine of pantograph slide plates |
| CN106629179A (en) * | 2017-01-12 | 2017-05-10 | 佛山达健实验设备有限公司 | Prehensile tail sealing mechanism suitable for plurality of rolling diameter specifications |
| CN106695769A (en) * | 2016-12-29 | 2017-05-24 | 上海理工大学 | Snakelike rescue robot |
| CN107140396A (en) * | 2017-06-06 | 2017-09-08 | 桂林电子科技大学 | A kind of multifunctional intellectual carrying platform |
| CN107363826A (en) * | 2017-06-16 | 2017-11-21 | 安徽机电职业技术学院 | A kind of mechanical grabbing device |
| CN107456252A (en) * | 2017-09-21 | 2017-12-12 | 孙艳平 | A kind of operating robot retractor |
| CN107521783A (en) * | 2017-09-05 | 2017-12-29 | 武汉华星光电技术有限公司 | Holding mechanism and glass bale breaker |
| CN107555155A (en) * | 2017-07-27 | 2018-01-09 | 福安市中虹机电技术开发有限公司 | A kind of stator core in motor transfer device |
| CN107718029A (en) * | 2016-08-22 | 2018-02-23 | 徐勤凤 | A kind of adjustable clamper |
| CN107758495A (en) * | 2017-11-01 | 2018-03-06 | 芜湖市长江起重设备制造有限公司 | A kind of Steel bar hanger for crane |
| CN107843820A (en) * | 2017-12-12 | 2018-03-27 | 国网山东省电力公司龙口市供电公司 | A kind of insulator arc-over warning device |
| CN107838604A (en) * | 2017-10-25 | 2018-03-27 | 梧州恒声电子科技有限公司 | A kind of loudspeaker produce fixture |
| CN108177122A (en) * | 2018-02-01 | 2018-06-19 | 天津城建大学 | Based on flexible clamping multi-angle hydraulic pin remover and method of pulling pin |
| CN108277966A (en) * | 2018-02-05 | 2018-07-13 | 徐亦心 | A kind of tile laying multi-panel synchronization bonder |
| CN108326776A (en) * | 2018-02-06 | 2018-07-27 | 苏州功业肆点零智能科技有限公司 | A kind of firm clamp assemblies of robot repair avoiding the occurrence of accidental injury |
| CN108633465A (en) * | 2018-04-10 | 2018-10-12 | 常熟理工学院 | Indirect labor's fruit rapid picking device |
| CN108637637A (en) * | 2018-05-15 | 2018-10-12 | 盛梁科 | A kind of progressive knocking device of elastic conjunction |
| CN108655614A (en) * | 2018-05-16 | 2018-10-16 | 王欧然 | A kind of assembly line automatic spot-welding device |
| CN108792043A (en) * | 2018-05-02 | 2018-11-13 | 阜阳盛东智能制造技术研发有限公司 | A kind of manipulator for upper strap automatically |
| CN108942875A (en) * | 2017-05-19 | 2018-12-07 | 南京理工大学 | A kind of mechanical arm |
| CN109048732A (en) * | 2018-08-30 | 2018-12-21 | 合肥亿翔智能制造有限公司 | A kind of detachable type automobile support nip side encloses frame assembly |
| CN109171084A (en) * | 2018-09-27 | 2019-01-11 | 童小鸾 | A kind of clothes peg device for clothing product line |
| CN109848316A (en) * | 2018-11-29 | 2019-06-07 | 安徽康乐机械科技有限公司 | A kind of manipulator of punching press loading and unloading |
| CN110802631A (en) * | 2019-11-27 | 2020-02-18 | 江苏德普尔门控科技有限公司 | Material grabbing manipulator for detecting door control electronic accessories |
| CN111573256A (en) * | 2020-05-13 | 2020-08-25 | 安徽泰田智能科技有限公司 | Heavy load moves and carries robot |
| CN112092000A (en) * | 2020-10-21 | 2020-12-18 | 王燊 | Manipulator jaw adjusting rod for loading and unloading |
| CN112440230A (en) * | 2020-11-18 | 2021-03-05 | 岳厚铁 | Adjustable bearing production clamping device |
| CN112479087A (en) * | 2021-01-07 | 2021-03-12 | 北京云中未来科技有限公司 | Hoisting and loading equipment for steel coil plant |
| CN112705984A (en) * | 2020-12-28 | 2021-04-27 | 东风汽车有限公司 | Automatic tool changing and oil injecting system and method |
-
2016
- 2016-01-26 CN CN201620071621.3U patent/CN205310292U/en not_active Expired - Fee Related
Cited By (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710892A (en) * | 2016-03-24 | 2016-06-29 | 青岛黄海学院 | Mechanical arm device of automatic device |
| CN106043861A (en) * | 2016-07-28 | 2016-10-26 | 湖南文理学院 | Automatic express package packaging machine and packaging method thereof |
| CN107718029A (en) * | 2016-08-22 | 2018-02-23 | 徐勤凤 | A kind of adjustable clamper |
| CN106112844A (en) * | 2016-08-23 | 2016-11-16 | 无锡市东赫金属制品有限公司 | A kind of pliers being easy to safe handling |
| CN106523493A (en) * | 2016-11-15 | 2017-03-22 | 大同新成新材料股份有限公司 | Covering machine of pantograph slide plates |
| CN106695769B (en) * | 2016-12-29 | 2019-06-04 | 上海理工大学 | A kind of snakelike rescue robot |
| CN106695769A (en) * | 2016-12-29 | 2017-05-24 | 上海理工大学 | Snakelike rescue robot |
| WO2018129952A1 (en) * | 2017-01-12 | 2018-07-19 | 陆德昌 | Tail sealing and rolling mechanism adaptable to a plurality of rolling diameter specifications |
| CN106629179B (en) * | 2017-01-12 | 2019-04-30 | 佛山市南海区德昌誉机械制造有限公司 | A kind of envelope end of reel mechanism being suitable for multireel diameter specification |
| CN106629179A (en) * | 2017-01-12 | 2017-05-10 | 佛山达健实验设备有限公司 | Prehensile tail sealing mechanism suitable for plurality of rolling diameter specifications |
| CN108942875A (en) * | 2017-05-19 | 2018-12-07 | 南京理工大学 | A kind of mechanical arm |
| CN107140396A (en) * | 2017-06-06 | 2017-09-08 | 桂林电子科技大学 | A kind of multifunctional intellectual carrying platform |
| CN107363826A (en) * | 2017-06-16 | 2017-11-21 | 安徽机电职业技术学院 | A kind of mechanical grabbing device |
| CN107555155A (en) * | 2017-07-27 | 2018-01-09 | 福安市中虹机电技术开发有限公司 | A kind of stator core in motor transfer device |
| CN107555155B (en) * | 2017-07-27 | 2019-04-23 | 福安市中虹机电技术开发有限公司 | A kind of stator core in motor transfer device |
| CN107521783A (en) * | 2017-09-05 | 2017-12-29 | 武汉华星光电技术有限公司 | Holding mechanism and glass bale breaker |
| CN107456252A (en) * | 2017-09-21 | 2017-12-12 | 孙艳平 | A kind of operating robot retractor |
| CN107456252B (en) * | 2017-09-21 | 2018-08-14 | 德州雷奥巴赫医疗器械有限公司 | A kind of operating robot retractor |
| CN107838604B (en) * | 2017-10-25 | 2019-09-06 | 梧州恒声电子科技有限公司 | A kind of loudspeaker production fixture |
| CN107838604A (en) * | 2017-10-25 | 2018-03-27 | 梧州恒声电子科技有限公司 | A kind of loudspeaker produce fixture |
| CN107758495A (en) * | 2017-11-01 | 2018-03-06 | 芜湖市长江起重设备制造有限公司 | A kind of Steel bar hanger for crane |
| CN107758495B (en) * | 2017-11-01 | 2019-08-16 | 芜湖市长江起重设备制造有限公司 | A kind of Steel bar hanger for crane |
| CN107843820A (en) * | 2017-12-12 | 2018-03-27 | 国网山东省电力公司龙口市供电公司 | A kind of insulator arc-over warning device |
| CN107843820B (en) * | 2017-12-12 | 2023-12-05 | 国网山东省电力公司龙口市供电公司 | Insulator discharge alarm device |
| CN108177122A (en) * | 2018-02-01 | 2018-06-19 | 天津城建大学 | Based on flexible clamping multi-angle hydraulic pin remover and method of pulling pin |
| CN108177122B (en) * | 2018-02-01 | 2023-11-24 | 天津城建大学 | Multi-angle hydraulic pin puller based on flexible clamping and pin pulling method |
| CN108277966A (en) * | 2018-02-05 | 2018-07-13 | 徐亦心 | A kind of tile laying multi-panel synchronization bonder |
| CN108277966B (en) * | 2018-02-05 | 2020-03-17 | 徐亦心 | Multi-surface synchronous bonding device for paving and pasting ceramic tiles |
| CN108326776A (en) * | 2018-02-06 | 2018-07-27 | 苏州功业肆点零智能科技有限公司 | A kind of firm clamp assemblies of robot repair avoiding the occurrence of accidental injury |
| CN108326776B (en) * | 2018-02-06 | 2020-08-21 | 苏州功业肆点零智能科技有限公司 | Stable clamping assembly for robot maintenance capable of avoiding accidental injury |
| CN108633465A (en) * | 2018-04-10 | 2018-10-12 | 常熟理工学院 | Indirect labor's fruit rapid picking device |
| CN111470124A (en) * | 2018-05-02 | 2020-07-31 | 阜阳盛东智能制造技术研发有限公司 | Control method for manipulator for automatically feeding packaging tape |
| CN108792043A (en) * | 2018-05-02 | 2018-11-13 | 阜阳盛东智能制造技术研发有限公司 | A kind of manipulator for upper strap automatically |
| CN111470124B (en) * | 2018-05-02 | 2021-11-23 | 新沂市中振电器科技有限公司 | Control method for manipulator for automatically feeding packaging tape |
| CN108637637A (en) * | 2018-05-15 | 2018-10-12 | 盛梁科 | A kind of progressive knocking device of elastic conjunction |
| CN108655614A (en) * | 2018-05-16 | 2018-10-16 | 王欧然 | A kind of assembly line automatic spot-welding device |
| CN109048732B (en) * | 2018-08-30 | 2024-04-12 | 合肥亿恒智能科技有限公司 | Detachable automobile support clamping side wall frame assembly |
| CN109048732A (en) * | 2018-08-30 | 2018-12-21 | 合肥亿翔智能制造有限公司 | A kind of detachable type automobile support nip side encloses frame assembly |
| CN109171084B (en) * | 2018-09-27 | 2020-01-24 | 童小鸾 | Clothes peg device for clothes production line |
| CN109171084A (en) * | 2018-09-27 | 2019-01-11 | 童小鸾 | A kind of clothes peg device for clothing product line |
| CN109848316A (en) * | 2018-11-29 | 2019-06-07 | 安徽康乐机械科技有限公司 | A kind of manipulator of punching press loading and unloading |
| CN110802631A (en) * | 2019-11-27 | 2020-02-18 | 江苏德普尔门控科技有限公司 | Material grabbing manipulator for detecting door control electronic accessories |
| CN111573256A (en) * | 2020-05-13 | 2020-08-25 | 安徽泰田智能科技有限公司 | Heavy load moves and carries robot |
| CN112092000A (en) * | 2020-10-21 | 2020-12-18 | 王燊 | Manipulator jaw adjusting rod for loading and unloading |
| CN112092000B (en) * | 2020-10-21 | 2021-04-23 | 新昌县善力机械科技有限公司 | Manipulator jaw adjusting rod for loading and unloading |
| CN112440230A (en) * | 2020-11-18 | 2021-03-05 | 岳厚铁 | Adjustable bearing production clamping device |
| CN112705984A (en) * | 2020-12-28 | 2021-04-27 | 东风汽车有限公司 | Automatic tool changing and oil injecting system and method |
| CN112479087A (en) * | 2021-01-07 | 2021-03-12 | 北京云中未来科技有限公司 | Hoisting and loading equipment for steel coil plant |
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