CN217045394U - Main channel steel processing equipment of construction elevator cage - Google Patents
Main channel steel processing equipment of construction elevator cage Download PDFInfo
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- CN217045394U CN217045394U CN202122702107.9U CN202122702107U CN217045394U CN 217045394 U CN217045394 U CN 217045394U CN 202122702107 U CN202122702107 U CN 202122702107U CN 217045394 U CN217045394 U CN 217045394U
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Abstract
The utility model discloses a main channel steel processing equipment of construction elevator cage, include the lathe bed subassembly and install front processing part, back processing subassembly, anchor clamps subassembly, the control system on the lathe bed subassembly, anchor clamps unit mount is at the lathe bed middle part, and front processing part installs in the front of lathe bed subassembly, and back processing unit mount is in the back of lathe bed subassembly, front processing part includes side leading wheel installation face processing subassembly, side leading wheel hole processing subassembly, front leading wheel hole processing subassembly on stand drive arrangement, front stand and the front stand. The position accuracy and the mounting hole basic size of guide wheel mounting holes, mounting surfaces and safety device mounting surfaces on the main channel steel are ensured, and then the fit clearance between each guide wheel and each safety device after being mounted and the guide rail frame is ensured to meet the design requirements.
Description
Technical Field
The utility model belongs to construction elevator processing field especially relates to a main channel steel processing equipment of construction elevator cage.
Background
The construction elevator is a man-carrying and cargo-carrying construction machine frequently used in building construction, mainly plays a role in conveying building workers and building materials to high altitude, and mainly comprises a guide rail frame, a suspension cage and a driving device, wherein the suspension cage is used as a main carrier of personnel and materials, and moves up and down on the guide rail frame under the driving of the driving frame by means of guide wheels arranged on main channel steel of the suspension cage and connecting lug plates, so that the vertical conveying of the personnel and the materials is realized. The cage main channel steel is not only a main bearing component of the cage, but also a guide component for up-and-down conveying of the cage, the guide is realized by a guide wheel arranged on the main channel steel, and the guide wheel is positioned and arranged through each mounting hole on the main channel steel. The position precision of the guide wheel mounting hole is related to the space size of the guide wheel after the guide wheel is mounted, and further is related to the fit clearance between the guide wheel and the guide rail frame, so that the stability and the reliability of the suspension cage in the transportation process are influenced. The main channel steel is formed by welding a left main beam and a right main beam together through a connecting plate, positioning and mounting holes of the guide wheel are respectively positioned on the main beams on the two sides and lug plates welded on the main beams, and the mounting holes on the main beams on the two sides are symmetrical. Meanwhile, the other side surface of the main channel steel is welded with a positioning block for installing a safety device, and the matching precision of the safety device and the guide rail frame is influenced by the position degree of the installation surface of the positioning block and the guide wheel hole, so that the reliability and the running stability of the safety device are influenced.
At present, the main channel steel is generally manufactured by respectively machining mounting holes in main beams and lug plates on two sides and a safety device connecting plate plane in a single piece, and then forming the main channel steel by assembling and welding by using a tool clamp. But because the machining precision of single main channel steel, positioning accuracy and welding deformation's when group right influence, it is unsatisfactory to lead to welding each locating hole of back main channel steel position accuracy, need use adjustable guide pulley and debug the fit clearance that could guarantee guide pulley and guide rail frame repeatedly, if debug untimely in the use, debug inaccurate or guide pulley wearing and tearing change the guide pulley time in time debug, all can lead to the cage to shake during operation, rock, influence safe in utilization and take the travelling comfort. The debugging of the equipment in the assembling stage and the maintenance in the using process cause great troubles.
Disclosure of Invention
In order to overcome above-mentioned prior art's weak point, the utility model provides a main channel steel processing equipment of construction elevator cage, ensure guide pulley mounting hole and installation face on the main channel steel, the position accuracy and the mounting hole basic dimension of safety device installation face, and then guarantee that each guide pulley and safety device installation back satisfy the designing requirement with the fit clearance of guide rail frame, and is further, because the precision of mounting hole improves, the guide pulley part need not to adopt adjustable structure, the direct assembly of guide pulley can, greatly reduced debugging work load and improve equipment operation stationarity, the security.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the main channel steel processing equipment comprises a lathe bed assembly, a front processing component, a back processing component, a clamp component and a control system, wherein the front processing component, the back processing component, the clamp component and the control system are installed on the lathe bed assembly, the clamp component is installed in the middle of the lathe bed, the front processing component is installed on the front side of the lathe bed assembly, the back processing component is installed on the back side of the lathe bed assembly, and the front processing component comprises a stand column driving device, a front stand column, a side guide wheel mounting surface processing component, a side guide wheel hole processing component and a front guide wheel hole processing component which are arranged on the front stand column.
In the technical scheme, the side guide wheel mounting surface machining assembly comprises a side mounting surface machining assembly moving device, a side mounting surface machining main shaft and a side mounting surface machining cutter, wherein the side mounting surface machining assembly moving device is arranged on the front upright post and connected with the side mounting surface machining main shaft, the side mounting surface machining main shaft is provided with the side mounting surface machining cutters which are arranged in an up-and-down symmetrical mode, and the side mounting surface machining assembly moving device can move up and down and back and forth along the upright post.
In the technical scheme, the side guide wheel mounting surface machining assembly comprises an upper and lower driving device, an upper and lower traveling guide rail, a front and rear driving device and a front and rear traveling guide rail, and axial movement of the Y axis and the X axis is performed.
In the technical scheme, the side guide wheel hole machining assembly comprises a side guide wheel hole machining assembly moving device, a side guide wheel hole machining main shaft and a side guide wheel hole machining cutter, wherein the side guide wheel hole machining assembly moving device, the side guide wheel hole machining main shaft and the side guide wheel hole machining cutter are arranged on the front upright post, the side guide wheel hole machining assembly moving device is connected with the side guide wheel hole machining main shaft, and symmetrical side guide wheel hole machining cutters are arranged on two sides of the side guide wheel hole machining main shaft.
In the technical scheme, the side guide wheel mounting surface machining assembly comprises an upper and lower driving device, an upper and lower traveling guide rail, a front and rear driving device and a front and rear traveling guide rail, and axial movement of the Y axis and the X axis is performed.
In the technical scheme, the front guide wheel hole machining assembly comprises a front guide wheel hole machining assembly front-back movement device, an upper main shaft, a lower main shaft, an upper cutter and a lower cutter, wherein the front guide wheel hole machining assembly front-back movement device is arranged on a front upright post, the front guide wheel hole machining assembly front-back movement device is connected with the upper main shaft and the lower main shaft which are arranged from top to bottom, the upper main shaft is provided with the upper cutter, and the lower main shaft is provided with the lower cutter from top to bottom.
In the technical scheme, the back processing assembly comprises a back upright post, a left driving device, a right driving device, a back movement device, a back main shaft and a back cutter, the back upright post, the left driving device, the right driving device, the back movement device, the back main shaft and the back cutter are arranged on the bed assembly, the left driving device and the right driving device are fixed on the bed assembly, the driving ends of the left driving device and the right driving device are connected with the back upright post, the back main shaft is arranged on the back upright post, and the back cutter is arranged on the back main shaft.
In the above technical solution, the back movement device includes an up-down driving device, an up-down traveling guide rail, a front-back driving device, and a front-back traveling guide rail, and performs axial movement of the Y axis and the X axis.
The utility model has the advantages that: adopt main channel steel welding back whole processing again, ensure the position precision and the mounting hole basic dimension of guide pulley mounting hole and installation face, safety device installation face on the main channel steel, and then guarantee that the fit clearance with the guide rail frame after each guide pulley and the safety device installation satisfies the design requirement, and is further because the precision of mounting hole improves, and the guide pulley part need not to adopt adjustable structure, and the guide pulley direct assembly can, greatly reduced debugging work load and improve equipment operation stationarity, security. The special processing equipment adopts a specific structural design, can meet the requirement of completing the processing of all holes and mounting surfaces by one-time clamping, and has higher processing precision and processing efficiency compared with other processing modes.
Drawings
Fig. 1 is the utility model discloses a construction elevator cage owner channel steel structure chart.
Fig. 2 is a top view of the processing apparatus of the present invention.
Fig. 3 is a left side view of the processing equipment of the present invention.
Fig. 4 is a front view of the processing apparatus of the present invention.
Fig. 5 is a front view of the front processing part of the processing apparatus of the present invention.
Fig. 6 is a top view of the front processing part of the processing apparatus of the present invention.
Fig. 7 is a left side view of the front processing part of the processing apparatus of the present invention.
Fig. 8 is a front view of the back processing assembly of the processing apparatus of the present invention.
Fig. 9 is a left side view of the back processing assembly of the processing apparatus of the present invention.
Fig. 10 is a top view of the back processing assembly of the processing apparatus of the present invention.
The safety device comprises a main channel steel 1, a main channel steel 11, a positioning lug plate, D1, a front guide wheel mounting hole I, D2, a side guide wheel mounting hole I, D3, a side guide wheel mounting hole II, D4, a front guide wheel mounting hole II, P1, a side guide wheel mounting surface I, P2, a side guide wheel mounting hole II, P3, a safety device mounting surface, P1 ', a side guide wheel mounting surface III, P2 ', a side guide wheel mounting hole IV, D1 ', a front guide wheel mounting hole III, D2 ', a side guide wheel mounting hole III ', D3 ', a side guide wheel mounting hole IV, D4 ', a front guide wheel mounting hole IV, D5 and a positioning hole.
2. A front processing component, 3, a back processing component, 4, a lathe bed component, 5, a clamp component, 6, a control system, 21, a front upright post driving device, 22, a side guide wheel installation surface processing component, 23, a side guide wheel installation hole processing component I, 24, a front guide wheel installation hole processing component, 26, a front upright post, 31, a back left and right driving device, 32, a back component left and right guide rail, 33, a back upright post, 34, an up and down traveling guide rail, 35, a back main shaft, 36, a back up and down driving device, 37, a back cutter, 38, a back processing component front and back traveling guide rail, 39, a back processing component front and back driving device, 221, a side processing component up and down driving device, 222, a first cutter, 222', a second cutter, 223, a side installation surface processing main shaft, 224 and a side installation surface processing component up and down moving guide rail, 225. a front-rear driving device for the side surface mounting surface machining component, 226, a front-rear movement guide rail for the side surface mounting surface machining component, 231, a vertical driving device for the side surface guide wheel hole machining component, 232, a third tool, 232 ', a fourth tool, 233, a side surface guide wheel hole machining main shaft, 234, a vertical movement guide rail for the side surface guide wheel hole machining component, 235, a front-rear movement guide rail for the side surface guide wheel hole machining component, 236, a front-rear driving device for the side surface guide wheel hole machining component, 241, an upper tool, 241 ', a lower tool, 242, an upper main shaft, 242 ', a lower main shaft, 243, a front surface guide wheel hole machining component front-rear movement guide rail, 244, and a front surface guide wheel hole machining component front-rear driving device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The steel structure of the cage main groove shown in fig. 1 and the steel processing equipment of the main groove of the cage of the construction elevator shown in fig. 2 to 10 comprise a bed body assembly 4, a front face processing component 2, a back face processing component 3, a clamp component 5 and a control system 6, wherein the front face processing component 2, the back face processing component 3, the clamp component 5 and the control system are installed on the bed body assembly 4, the front face processing component 2 is installed on the front face of the bed body assembly 4, the back face processing component 3 is installed on the back face of the bed body assembly 4, and the front face processing component comprises a front face upright post driving device 21, a front face upright post 26, and a side face guide wheel installation face processing component 22, a side face guide wheel hole processing component 23 and a front face guide wheel hole processing component 24 on the front face upright post. The lathe bed assembly 4 is used for installing the processing components and the clamp assembly. The control system 6 can control the processing action and the processing flow of each processing component and each clamp through programming. The front upright post 26 assembly is used for supporting and mounting the front hole machining assembly 24, the side guide wheel hole machining assembly 23 and the side guide wheel mounting surface machining assembly 22, and moves left and right along the guide rail under the driving of the front upright post driving device 21, so that the machining of holes or surfaces at different positions is realized.
The front guide wheel hole machining assembly 24 is mainly used for machining front guide wheel mounting holes D1, D1 ', D4 and D4'. The side guide wheel mounting hole machining assembly 23 is mainly used for machining side guide wheel mounting holes D2, D2 ', D3 and D3'. The side guide wheel mounting surface machining is mainly used for machining the inner side mounting surface of the side guide wheel.
In the above technical solution, the side guide wheel installation surface machining assembly 22 includes a side installation surface machining assembly moving device, a side installation surface machining spindle 223, a first tool 222, and a second tool 222 ', which are arranged on the front column 26, the side installation surface machining assembly moving device is connected to the side installation surface machining spindle 223, the side installation surface machining spindle 23 is provided with the first tool 222 and the second tool 222', which are symmetrically arranged up and down, and the side installation surface machining assembly moving device can move up and down and back and forth along the front column. The side mount surface machining block moving device includes a side mount surface up-down driving device 221, a side mount surface machining block up-down moving guide rail 224, a side mount surface machining block forward-backward driving device 225, and a side mount surface machining block forward-backward moving guide rail 226.
In the above technical solution, the side guide wheel hole machining assembly includes a side guide wheel hole machining assembly moving device, a side guide wheel hole machining spindle 233, a third tool 232, and a fourth tool 232 'that are disposed on the front column, the side guide wheel hole machining assembly moving device is connected to the side guide wheel hole machining spindle 233, and the third tool 232 and the fourth tool 232' are symmetrically disposed on two sides of the side guide wheel hole machining spindle 233. The side guide wheel hole machining assembly moving device comprises a side guide wheel hole machining assembly up-and-down driving device 231, a side guide wheel hole machining assembly up-and-down moving guide rail 234, a side guide wheel hole machining assembly front-and-back moving guide rail 235 and a side guide wheel hole machining assembly front-and-back driving device 236.
The side mount surface machining spindle 223 is movable up and down along the side mount surface machining block up-and-down movement guide rail 224 by the side mount surface machining block up-and-down driving device 221, and is also movable back and forth along the side mount surface machining block front-and-back movement guide rail 226 by the side mount surface machining block front-and-back driving device 225. And simultaneously moves left and right along the guide rail along with the front upright 26 driven by the front upright driving device 21. Through the programming control of the control system 6, the side guide wheel mounting surfaces can be accurately positioned in the three directions, and meanwhile, the side mounting surface machining main shaft 223 rotates to drive the second cutter 222 ' and the first cutter 222 to rotate to machine the side guide wheel mounting surfaces P1 and P1 ' and P2 and P2 '.
Furthermore, the main shaft 223 can be provided with cutters in the upper direction and the lower direction, so that the installation surfaces on the two sides can be respectively machined, the time for frequently reversing the cutters in the machining process is reduced, the machining efficiency is greatly improved, the occupied space is reduced by using the same main shaft for driving, and the structure of machining equipment is further optimized.
In the above technical solution, the front guide wheel hole machining assembly includes a front guide wheel hole machining assembly front and rear driving device 244, a front guide wheel hole machining assembly front and rear movement guide rail 243, an upper main shaft 242, a lower main shaft 242 ', an upper tool 241 and a lower tool 241 ' which are arranged on the front upright post 26, the guide wheel hole machining assembly front and rear movement device is connected with the upper main shaft 242 and the lower main shaft 242 which are arranged up and down, the upper main shaft is provided with the upper tool 241, and the lower main shaft is provided with the lower tool 241 ' up and down.
The distance between the upper and lower directions of the rotation centers of the upper main shaft 242 and the lower main shaft 242 'is the same as the distance between the upper and lower centers of the main channel steel front guide wheel mounting holes D1, D1', D4 and D4 ', the main channel steel 1 is mounted on the clamp assembly 5, and the upper and lower height positions of the main channel steel 1' and the positioning front guide wheel mounting holes D1, D4, D1 'and D4' are consistent with the height positions of the upper cutter 241 and the lower cutter 241 'of the machining assembly, so that the front guide wheel mounting hole machining assembly does not need to move up and down, and the upper main shaft 242 and the lower main shaft 242' can work simultaneously in the machining process, so that the two groups of front guide wheel mounting holes D1, D1 ', D4 and D4' can be respectively and simultaneously machined, and the machining efficiency is greatly improved. Further, the up-down main shafts 242', 242 can move back and forth along the front guide wheel hole machining assembly back and forth movement guide rail 243 by the front guide wheel hole machining assembly back and forth driving device 244, and also move left and right along the guide rail with the driving of the vertical column 26 by the left and right travel driving mechanism 21.
Through the programming control of the control system 6, the positions of the front guide wheel mounting holes are accurately positioned in the two directions, and meanwhile, the main shaft rotates to drive the second cutter 222 ' and the first cutter 222 to rotate to machine the front guide wheel mounting holes D1 and D1 ' and the front guide wheel mounting holes D4 and D4 '.
In the above technical solution, the back processing assembly 3 includes a back column 33, a back left-right driving device 31, a back moving device, a back spindle 35 and a back tool 37, which are arranged on the bed assembly 4, the back left-right driving device 31 is fixed on the bed assembly 4, a driving end of the back left-right driving device is connected with the back column 33, the back spindle 35 is arranged on the back column 33, and the back tool is arranged on the back spindle 35. The back upright 33 is connected to a back left-right driving device 31 via a back assembly rail 32, and the back movement device includes a back up-down travel rail 34, a back up-down driving device 36, a back machining assembly front-back travel rail 38, and a back machining assembly front-back driving device 39.
Through the programming control of the control system 6, the position of the safety device mounting surface P3 can be accurately positioned in the above three directions, and meanwhile, the back spindle 35 rotates to drive the back cutter 37 to machine the safety device mounting surface P3.
Use the utility model discloses a during the processing equipment, after welding back owner channel steel cooling is accomplished, place it on this processing equipment, carry out a clamping to each guide pulley mounting hole and installation face, safety device installation face, accomplish whole processing to ensure the position precision of each guide pulley mounting hole and installation face, installation device installation face, and then guarantee the assembly precision.
Placing the welded main channel steel on a processing device, aligning a mounting hole on a positioning lug plate 11 with a positioning hole on a clamp assembly 5, positioning the main channel steel by using a mounting positioning pin, then clamping the main channel steel by using an automatic clamping device on the clamp assembly 5, after clamping a workpiece, controlling by a control system 6, enabling a side guide wheel mounting surface processing assembly 22 to move left and right along with a front upright post 26, performing up-and-down and left-and-right movement by using a side mounting surface processing assembly moving device, moving to a position of a mounting surface P2 on one side of the inner side of the main channel steel, after processing of a mounting surface P2 by using a first cutter 222, enabling a side mounting surface processing main shaft 223 to move downwards under the driving of the side mounting surface processing assembly moving device, and processing a guide wheel mounting surface P2 'which is symmetrical on the other side by using a second cutter 222'; then the front upright post 26 moves leftwards to the positions of front mounting holes D4 and D4 'under the driving of the front left-right driving device 21, front guide wheel mounting holes D4 and D4' are machined by using an upper cutter 241 and a lower cutter 241 ', and two side roller mounting holes D4 and D4' can be machined simultaneously; after the machining is completed, the front upright post 26 continues to move leftwards under the driving of the left and right driving device 21, meanwhile, the main shaft 233 of the side guide wheel machining assembly 23 is driven by the side guide wheel hole machining assembly up-and-down driving device 231 and the side guide wheel hole machining assembly front-and-back driving device 236 to move upwards and downwards to the position of a side guide wheel mounting hole D3, a lower side guide wheel mounting hole D3 is completed by using a third cutter 232, and after the machining is completed, the side guide wheel hole machining main shaft 233 moves upwards and processes symmetrical side mounting holes D3 'by using a fourth cutter 232'; after completion, the upright post 26 continues to move to the left to the other end under the driving of the left and right driving mechanisms 21, and the same processing procedures are utilized to complete the processing of the side guide wheel mounting surfaces P1 and P1 ', the front guide wheel mounting holes D1 and D1 ', and the side guide wheel mounting holes D2 and D2 ';
while the front processing part 2 is operating, the back upright column 33 of the back processing assembly 3 is driven by the back left-right driving device 31 to move left and right, the back spindle 35 is driven by the back up-down driving device 36 to move up and down, and driven by the back front-back driving mechanism 39 to move back and forth to the processing position of the safety device mounting surface P3, so as to process the mounting surface of the mounting device; after all parts are machined, the clamp assembly 5 automatically loosens the main channel steel, and the main channel steel is taken down to complete machining.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (8)
1. The utility model provides a main channel steel processing equipment of construction elevator cage which characterized by: the fixture assembly is arranged in the middle of the lathe bed, the front processing assembly is arranged on the front side of the lathe bed assembly, the back processing assembly is arranged on the back side of the lathe bed assembly, and the front processing assembly comprises a stand column driving device, a front stand column, a side guide wheel mounting surface processing assembly, a side guide wheel hole processing assembly and a front guide wheel hole processing assembly.
2. The main channel steel processing equipment of the construction elevator cage according to claim 1, wherein: the side guide wheel mounting surface machining assembly comprises a side mounting surface machining assembly moving device, a side mounting surface machining main shaft and a side mounting surface machining cutter, wherein the side mounting surface machining assembly moving device, the side mounting surface machining main shaft and the side mounting surface machining cutter are arranged on the front upright post, the side mounting surface machining main shaft is provided with the side mounting surface machining cutters which are vertically and symmetrically arranged, and the side mounting surface machining assembly moving device can move up and down and back and forth along the upright post.
3. The main channel steel processing equipment of the construction elevator cage according to claim 2, wherein: the side guide wheel mounting surface processing assembly comprises an upper driving device, a lower driving device, an upper traveling guide rail, a lower traveling guide rail, a front driving device, a rear driving device and a front traveling guide rail, and axial movement of the Y axis and the X axis is carried out.
4. The main channel steel processing equipment of the construction elevator cage according to claim 1, wherein: the side guide wheel hole machining assembly comprises a side guide wheel hole machining assembly moving device, a side guide wheel hole machining main shaft and a side guide wheel hole machining cutter, wherein the side guide wheel hole machining assembly moving device, the side guide wheel hole machining main shaft and the side guide wheel hole machining cutter are arranged on the front upright post, the side guide wheel hole machining assembly moving device is connected with the side guide wheel hole machining main shaft, and symmetrical side guide wheel hole machining cutters are arranged on two sides of the side guide wheel hole machining main shaft.
5. The main channel steel processing equipment of the construction elevator cage according to claim 4, wherein: the side guide wheel mounting surface processing assembly comprises an upper driving device, a lower driving device, an upper traveling guide rail, a lower traveling guide rail, a front driving device, a rear driving device and a front traveling guide rail, and axial movement of the Y axis and the X axis is carried out.
6. The main channel steel processing equipment of the construction elevator cage according to claim 1, wherein: the front guide wheel hole machining assembly comprises a front guide wheel hole machining assembly front-back movement device, an upper main shaft, a lower main shaft, an upper cutter and a lower cutter, wherein the front guide wheel hole machining assembly front-back movement device is arranged on a front upright post, the front guide wheel hole machining assembly front-back movement device is connected with the upper main shaft and the lower main shaft which are arranged from top to bottom, the upper main shaft is provided with the upper cutter, and the lower main shaft is provided with the lower cutter from top to bottom.
7. The main channel steel processing equipment of the construction elevator cage according to claim 1, wherein: the back processing assembly comprises a back upright post, a left-right driving device, a back moving device, a back main shaft and a back tool, the back upright post, the left-right driving device, the back moving device, the back main shaft and the back tool are arranged on the bed assembly, the driving end of the left-right driving device is connected with the back upright post, the back upright post is provided with the back main shaft, and the back main shaft is provided with the back tool.
8. The main channel steel processing equipment of the construction elevator cage according to claim 1, wherein: the back processing assembly comprises an upper driving device, a lower driving device, an upper traveling guide rail, a lower traveling guide rail, a front driving device, a rear driving device and a front traveling guide rail, and axial movement of the Y axis and the X axis is carried out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122702107.9U CN217045394U (en) | 2021-11-06 | 2021-11-06 | Main channel steel processing equipment of construction elevator cage |
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| CN202122702107.9U CN217045394U (en) | 2021-11-06 | 2021-11-06 | Main channel steel processing equipment of construction elevator cage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909911A (en) * | 2021-11-06 | 2022-01-11 | 湖北江汉建筑工程机械有限公司 | Construction elevator cage main channel steel machining equipment and machining process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909911A (en) * | 2021-11-06 | 2022-01-11 | 湖北江汉建筑工程机械有限公司 | Construction elevator cage main channel steel machining equipment and machining process |
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