CN110369919A - Positioning holding device in the truss manufacture system of escalator or moving sidewalk - Google Patents
Positioning holding device in the truss manufacture system of escalator or moving sidewalk Download PDFInfo
- Publication number
- CN110369919A CN110369919A CN201910742882.1A CN201910742882A CN110369919A CN 110369919 A CN110369919 A CN 110369919A CN 201910742882 A CN201910742882 A CN 201910742882A CN 110369919 A CN110369919 A CN 110369919A
- Authority
- CN
- China
- Prior art keywords
- positioning
- frame
- holding device
- moving sidewalk
- truss
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses the positioning holding devices in the truss manufacture system of a kind of escalator or moving sidewalk, described device includes frame, guide rail and at least one slidably locator, the slidably locator is slidably mounted on the guide rail, the guide rail is mounted in the frame, and the frame has engraved structure；Described device further includes rotating mechanism, and the rotating mechanism is connected with the both ends of the positioning holding device, and the rotating mechanism drives that the positioning holding device is rotated around a rotation axis and any position in rotary course stops.The present invention can extend according to the dimensional directions of customization, and the frame of engraved structure can avoid the back side welding position of component, in conjunction with rotating mechanism, can obtain preferable welding posture and position, it is more suitable the production requirement of truss customization, and reverse side is made to be welded into possibility.
Description
Technical field
The present invention is related with lift facility manufacturing technology, particularly belongs to the truss system of a kind of escalator or moving sidewalk
The positioning holding device in system is made, especially suitable for what is welded in truss manufacturing process to the component as minimum unit
Stage.
Background technique
Transport equipment for persons is seen everywhere in present daily life, is used between different height level or same
Passenger is transported in height level.Wherein, escalator is used to passenger being transported to another layer from one layer, and moving sidewalk is then one
Passenger is transported in a floor, in horizontal plane or in only slightly inclined plane.
Transport equipment for persons (including escalator, moving sidewalk) usually has bearing structure, is used to bear load,
As being transported the gravity of passenger, power as caused by the driving of transport equipment for persons etc., and these power are continued to be transmitted to installation
In the load-carrying members of the building of transport equipment for persons.Therefore, bearing structure can generally cross over two or more of building
Extended in plane or floor and/or same floor in building across shorter or longer distance.
The bearing structure of transport equipment for persons is typically designed to truss structure, generally by lower component, middle component and upper-part
Three parts or section composition.When aforementioned truss is used to support escalator, it is lower that lower component can be arranged in building
In region, upper-part can be arranged in the higher region of building, middle component connection lower component and upper-part and usually with
Extend to the inclined angle of the horizontal direction of building.Under normal circumstances, the outer dimension of truss needs the reality according to building
Situation carries out customization.
In order to guarantee that truss has enough stability and bearing capacity, all components for constituting truss must be sufficiently stable
Ground interconnection.For this purpose, in most cases, all components of frame weld together, and each individually frame parts must be with
Other frame parts of frame structure are welded together in a manner of stable and bearing load.
The welding process of truss has middle needs to the component as truss minimum unit or the frame section being made of component
Part is positioned to complete subsequent corresponding welding operation, meanwhile, the characteristics of needing to consider truss outer dimension customization and subtract
The demand of few welding deformation, therefore how reliable design and flexible positioning device become the important ring in truss manufacturing process
Section.
Summary of the invention
The technical problem to be solved in the present invention is to provide in the truss manufacture system of a kind of escalator or moving sidewalk
Positioning holding device, in solving the problems, such as truss manufacturing process to constitute truss each component carry out positioning keep it is same
When, how to realize that positioning holding device is applicable in different size truss.
To solve the above-mentioned problems, determine in the truss manufacture system of escalator or moving sidewalk provided by the invention
Position holding meanss include frame, guide rail and at least one slidably locator, the slidably locator are slidably mounted on institute
It states on guide rail, the guide rail is mounted in the frame.
Further, described device further includes at least one rotatable locator, and the rotatable locator is mounted on institute
It states in frame and can be rotated in the horizontal plane relative to the frame and be formed with angle between the guide rail.
Preferably, the frame has engraved structure.
Wherein, the slidably locator includes that substrate, substrate positioning mechanism and the component on the substrate are determined
Position mechanism and component clamp system, the substrate are mounted on the guide rail and can move along the guide rail, and pass through the base
Board positioning mechanism is positioned on said frame.
Wherein, the rotatable locator includes that bottom plate, bottom plate positioning mechanism and the component on the bottom plate are determined
Position mechanism and component clamp system, the bottom plate is connect by pin shaft with the frame member, and passes through the bottom plate localization machine
Structure is positioned on said frame.
Further, the component positioning mechanism uses combination or the locating piece of positioning pin and location hole, the component
Clamp system is clamp or clamping jaw.
Preferably, the component clamp system is electrodynamic type or pneumatic type or hand.
Preferably, described device further includes rotating mechanism, the both ends phase of the rotating mechanism and the positioning holding device
Even, the rotating mechanism drives that the positioning holding device is rotated around a rotation axis and any position in rotary course is stopped
Only.
Further, the rotating mechanism includes the axis of rigid mounting and the connection rigid mounting and the frame
System.
Further, the rotating mechanism includes rigid mounting, at least one servo motor and the connection servo electricity
The shafting of machine and the frame.
Wherein, the shafting is the combination of output shaft or output shaft and servo axis.
Preferably, the rotating mechanism drives shafting using unilateral servo motor, and one end of the frame is in the servo
It is rotated under the drive of motor and output shaft, the other end is mounted on servo axis.
Preferably, the rotating mechanism takes bilateral servo motor to drive shafting, and every one end of the frame is respectively one
It is rotated under the drive of a servo motor and output shaft.
Positioning holding device of the invention is mainly used for carrying out welding to the component as minimum unit forming each portion of truss
The lateral plate divided, the technical effect that may be implemented are as follows:
1) present invention carries out positioning holding to each component by guide rail and the slidably locator being arranged on guide rail, and
The relative position of each component can also be adjusted according to the specific size of truss, to guarantee to carry out between component reliably and accurately to determine
Position, and product of the positioning holding device suitable for different size can just be made by simple and quick adjustment；
2) positioning holding device of the invention can also add rotatable locator, thus can direct shape by subsequent welding
At the lateral plate with angle, i.e., upper part and the upper part of middle part, the end portion of lower part and middle part, such corner
Weld seam is welded comprehensively in the state that positioning holding device clamps, and welding deformation is more easier to control, and does not need to carry out
The angular adjustment of large-scale retainer, operation more safe ready；Meanwhile rotatable retainer can surround the company of itself and frame
Outbound axis is rotated relative to frame, and realization simply adjusts the fixture of different angle truss；
3) positioning holding device of the invention also has rotating mechanism, can control positioning by the rotating mechanism and keeps dress
The spatial position set, so as to adjust the spatial position of truss weld seam, can obtain in the welding process better welding posture and
Position reduces welding skill requirement, to obtain more stability of the welding quality；
4) frame is engraved structure in positioning holding device of the invention, can preferably avoid reverse side welding position, and
And in conjunction with rotating mechanism further it is that reverse side welding and the realization of Automation of Welding provide the foundation, meanwhile, clamped one time can be with
The welding on two sides is completed, to offset part welding stress, reduces welding deformation.
Detailed description of the invention
Fig. 1 is the top view of the first embodiment of positioning holding device in truss manufacture system of the invention；
Fig. 2 is the top view of the second embodiment of positioning holding device in truss manufacture system of the invention；
Fig. 3 is the stereoscopic schematic diagram of the second embodiment of positioning holding device in truss manufacture system of the invention；
Fig. 4 is the enlarged diagram in Fig. 3 at A.
Wherein the reference numerals are as follows:
2 component, 21 work station
31 rotating mechanism, 32 rotation axis
101 lateral plate, 201 frame
202 rotatable locators 203 slidably locator
204 guide rails
Specific embodiment
Positioning holding device of the invention is particularly suitable in the truss manufacture system of escalator or moving sidewalk
Positioning holding is carried out to the component of minimum unit, that is to say, that mainly use in the first stage of truss manufacturing process.
Embodiments of the present invention are illustrated by particular specific embodiment with reference to the accompanying drawing, those skilled in the art can
To understand further advantage and effect of the invention easily by content disclosed in the present specification.
First embodiment
Positioning holding device in the escalator of the present embodiment or the truss manufacture system of moving sidewalk includes frame
201, guide rail 204 and at least one slidably locator 203, the slidably locator 203 are slidably mounted on the guide rail
On 204, the guide rail 204 is mounted in the frame 201, as shown in Figure 1.
The truss of escalator or moving sidewalk includes upper-part, middle component and lower component, the upper-part, middle component
It is interconnected to constitute respectively by the component 2 with bearing capacity with lower component, as shown in Figure 1.The manufacturing process packet of usual truss
Include lateral plate assembling stage, component assembling stage, integrated connection stage three phases, the corresponding work station of each stage.Wherein,
The lateral plate assembling stage is the left side for carrying out positioning holding to component 2 and welding the left and right lateral plate, middle component that form the upper-part of truss
The left and right lateral plate of right side piece and lower component, component assembling stage are the components of the left and right lateral plate and connection left and right lateral plate to each component
It carries out positioning holding and welds the upper-part, middle component and lower component for forming truss, the integrated connection stage is the top to truss
Part, middle component and lower component carry out positioning holding and connect to form truss.The positioning holding device of the present embodiment is primarily adapted for use in
Lateral plate assembles in the first work station in stage.
In order to improve the production efficiency of truss, multiple work stations, such as top are usually arranged in each stage of truss manufacture
Part lateral plate work station, middle component lateral plate work station, lower component lateral plate work station etc..It generally also can be according to truss in work station 21
Specification configures multiple positioning holding devices, as shown in Figure 1, two sets of positioning holding devices are arranged, respectively in a work station 21
For keeping constituting the component 2 of the component 2 of the left side piece of each component, the right side piece for constituting each component.
Each positioning holding device includes frame 201 with certain rigidity, guide rail 204 and at least one is slidably fixed
Position device 203, wherein the slidably locator 203 includes substrate, substrate positioning mechanism and the component on the substrate
Positioning mechanism and component clamp system.The substrate is mounted on the guide rail 204 and can move along the guide rail 204, and leads to
It crosses the substrate positioning mechanism to be positioned on said frame, wherein substrate positioning mechanism can use common positioning pin and determine
The composite structure of position block, i.e., be respectively formed with location hole on substrate and frame, be moved to substrate along guide rail 204 and need position simultaneously
Guarantee that certain location hole of substrate is aligned with certain location hole of frame, is positioned being realized in the location hole of positioning pin insertion alignment.
The component positioning mechanism uses combination or the locating piece of positioning pin and location hole.The component clamp system is clamp or folder
Pawl, as shown in figure 4, automatic, semi-automatic or purely manual control can be realized using electrodynamic type or pneumatic type or hand, thus will
Each component 2 of composition lateral plate 101 is positioned and (is fixed to relative position).
In the present embodiment, slidably locator 203 is slidably mounted on the guide rail 204, and the guide rail 204 is installed
In the frame 201, slidably locator 203 passes through the knot that guide rail 204 is mounted on the frame 201 of positioning holding device in this way
On structure, it can be extended according to the dimensional directions of customization, and the relative position of each component is adjusted according to the specific structure of truss,
To guarantee reliably and accurately to be welded between component.
As shown in Figure 1, described device further includes rotating mechanism 31, the rotating mechanism 31 and the positioning holding device
Both ends are connected, and the rotating mechanism 31 drives the positioning holding device to rotate around a rotation axis 32 and in rotary course
Any position stops.
Wherein, rotating mechanism 31 can use MANUAL CONTROL mode comprising the rigid mounting of sufficient intensity and connection
The shafting of the rigid mounting and the frame.It is of course also possible to use automatic control mode, rack including sufficient intensity,
At least one servo motor, the shafting for connecting servo motor and frame 201, servo motor are rotated by shafting driver framework.This
Outside, rotating mechanism can be unilateral driving shafting, be also possible to dual-sided drive shafts system.
Preferably, dual-sided drive shafts system is used in an embodiment of the present invention, i.e. a servo is respectively arranged in the both ends of frame
Motor, two servo motors drive positioning holding device rotation by output shaft simultaneously, can guarantee that large-scale retainer exists in this way
Stability and precision in rotary course.
It is of course also possible to take the mode of unilateral driving shafting, i.e. one end of frame is arranged a servo motor and at this
It is rotated under the driving of servo motor and output shaft, the other end of the frame is mounted on servo axis, passes through positioning holding device
The rigidity of frame body drives rotation.
The frame has engraved structure, can effectively avoid the back side welding position of component, in conjunction with rotating mechanism,
The assembly welding of left and right sides piece can be made to obtain preferable welding posture and position, and reverse side is made to be welded into possibility.
Second embodiment
It is similar to first embodiment, the difference is that rotatable locator 202 is increased, so as to directly set up band
There is the lateral plate of certain angle, solves the process difficulties that the biggish component of subsequent volume is attached.
Specifically, as shown in Figure 2 and Figure 3, in the truss manufacture system of the escalator of the present embodiment or moving sidewalk
Positioning holding device includes frame 201, guide rail 204, at least one slidably locator 203, at least one rotatable locator
202, the slidably locator 203 is slidably mounted on the guide rail 204, and the guide rail 204 is mounted on the frame 201
It is interior, the rotatable locator 202 be mounted in the frame 201 and can be rotated in the horizontal plane relative to the frame and with
Angle is formed between the guide rail 204.
Wherein, the rotatable locator 202 includes bottom plate, bottom plate positioning mechanism and the component on the bottom plate
Positioning mechanism and component clamp system, the bottom plate are rotatablely connected by pin shaft and the frame 201, and fixed by the bottom plate
Position mechanism is positioned on the frame 201, to form required angle with guide rail 204.Wherein, bottom plate positioning mechanism
Can use common positioning pin and locating piece composite structure, i.e., be respectively formed with location hole on bottom plate and frame, make bottom plate around
Pin shaft, which turns to, to be needed position and guarantees that certain location hole of bottom plate is aligned with certain location hole of frame, and a positioning pin is inserted into and is aligned
Location hole in realize positioning.The component positioning mechanism uses combination or the locating piece of positioning pin and location hole.Described group
Part clamp system is clamp or clamping jaw, as shown in figure 4, can be electrodynamic type or pneumatic type or hand.
Specifically, in a work station 21, two sets of positioning holding devices are set, are respectively used to keep constituting each component
The component 2 of left side piece, constitute each component right side piece component 2.In the present embodiment, slidably locator 203 passes through guide rail
204 are mounted in the structure of frame 201 of positioning holding device, can be extended according to the dimensional directions of customization, and according to
The specific structure of truss adjusts the relative position of each component, to guarantee reliably and accurately to be welded between component, and can revolve
Turn locator 202 to be located in frame 201 and can rotate around some datum mark (pin shaft for connecting rotatable locator and frame), and
It can be accurately positioned at least one special angle, to realize the angle between upper-part, lower component and middle component.
As shown in Fig. 2, described device further includes rotating mechanism 31, the rotating mechanism 31 and the positioning holding device
Both ends are connected, and the rotating mechanism 31 drives the positioning holding device to rotate around a rotation axis 32 and in rotary course
Any position stops.
Wherein, rotating mechanism 31 can use MANUAL CONTROL mode comprising the rigid mounting of sufficient intensity and connection
The shafting of the rigid mounting and the frame.It is of course also possible to use automatic control mode, rack including sufficient intensity,
At least one servo motor, the shafting for connecting servo motor and frame 201, servo motor are rotated by shafting driver framework.This
Outside, rotating mechanism can be unilateral driving shafting, be also possible to dual-sided drive shafts system.
Preferably, dual-sided drive shafts system is used in an embodiment of the present invention, i.e. a servo is respectively arranged in the both ends of frame
Motor, two servo motors drive positioning holding device rotation by output shaft simultaneously, can guarantee that large-scale retainer exists in this way
Stability and precision in rotary course.
It is of course also possible to take the mode of unilateral driving shafting, i.e. one end of frame is arranged a servo motor and at this
It is rotated under the driving of servo motor and output shaft, the other end of the frame is mounted on servo axis, passes through positioning holding device
The rigidity of frame body drives rotation.
The frame has engraved structure, can effectively avoid the back side welding position of component, in conjunction with rotating mechanism,
The assembly welding of left and right sides piece can be made to obtain preferable welding posture and position, and reverse side is made to be welded into possibility.
Using the positioning holding device of the present embodiment, can truss manufacture the incipient stage determine that in component and upper-part
Angle between lower component makes the docking mode in subsequent truss integrated connection stage become parallel docking, large-scale without carrying out
The angular adjustment of retainer operates simpler safety, and corner weld seam is welded comprehensively in the state that retainer clamps,
Welding deformation is more easier to control.
The present invention has been described in detail through specific embodiments, above-described embodiment be only it is of the invention compared with
Good embodiment, the invention is not limited to above embodiment.Without departing from the principles of the present invention, the technology of this field
Personnel to each positioning keep in slidably locator and rotatable locator and the structure type of rotating mechanism etc. make it is equivalent
Displacement and improvement, are regarded as in the technology scope that the present invention is protected.
Claims (13)
1. the positioning holding device in the truss manufacture system of a kind of escalator or moving sidewalk, which is characterized in that described
Device include frame, guide rail and at least one slidably locator, the slidably locator are slidably mounted on the guide rail
On, the guide rail is mounted in the frame.
2. the positioning holding device in the truss manufacture system of escalator according to claim 1 or moving sidewalk,
It is characterized in that, described device further includes at least one rotatable locator, the rotatable locator is mounted on the frame
It is interior and can be rotated in the horizontal plane relative to the frame and be formed with angle between the guide rail.
3. the positioning in the truss manufacture system of escalator according to claim 1 or 2 or moving sidewalk keeps dress
It sets, which is characterized in that the frame has engraved structure.
4. the positioning holding device in the truss manufacture system of escalator according to claim 1 or moving sidewalk,
It is characterized in that, the slidably locator includes substrate, substrate positioning mechanism and the component positioning on the substrate
Mechanism and component clamp system, the substrate are mounted on the guide rail and can move along the guide rail, and pass through the substrate
Positioning mechanism is positioned on said frame.
5. the positioning holding device in the truss manufacture system of escalator according to claim 2 or moving sidewalk,
It is characterized in that, the rotatable locator includes bottom plate, bottom plate positioning mechanism and the component positioning on the bottom plate
Mechanism and component clamp system, the bottom plate are connect by pin shaft with the frame member, and pass through the bottom plate positioning mechanism
It is positioned on said frame.
6. the positioning in the truss manufacture system of escalator according to claim 4 or 5 or moving sidewalk keeps dress
It sets, which is characterized in that the component positioning mechanism uses combination or the locating piece of positioning pin and location hole, and the component clamps
Mechanism is clamp or clamping jaw.
7. the positioning holding device in the truss manufacture system of escalator according to claim 6 or moving sidewalk,
It is characterized in that, the component clamp system is electrodynamic type or pneumatic type or hand.
8. the positioning in the truss manufacture system of escalator according to claim 1 or 2 or moving sidewalk keeps dress
It sets, which is characterized in that described device further includes rotating mechanism, the both ends phase of the rotating mechanism and the positioning holding device
Even, the rotating mechanism drives that the positioning holding device is rotated around a rotation axis and any position in rotary course is stopped
Only.
9. the positioning holding device in the truss manufacture system of escalator according to claim 8 or moving sidewalk,
It is characterized in that, the rotating mechanism includes the shafting of rigid mounting and the connection rigid mounting and the frame.
10. the positioning holding device in the truss manufacture system of escalator according to claim 8 or moving sidewalk,
It is characterized in that, the rotating mechanism includes rigid mounting, at least one servo motor and the connection servo motor and institute
State the shafting of frame.
11. the positioning in the truss manufacture system of escalator according to claim 10 or moving sidewalk keeps dress
It sets, which is characterized in that the shafting is the combination of output shaft or output shaft and servo axis.
12. the positioning in the truss manufacture system of escalator according to claim 11 or moving sidewalk keeps dress
It sets, which is characterized in that the rotating mechanism drives shafting using unilateral servo motor, and one end of the frame is in the servo electricity
It is rotated under the drive of machine and output shaft, the other end is mounted on servo axis.
13. the positioning in the truss manufacture system of escalator according to claim 11 or moving sidewalk keeps dress
It sets, which is characterized in that the rotating mechanism takes bilateral servo motor to drive shafting, and every one end of the frame is respectively at one
It is rotated under the drive of servo motor and output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742882.1A CN110369919A (en) | 2019-08-13 | 2019-08-13 | Positioning holding device in the truss manufacture system of escalator or moving sidewalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742882.1A CN110369919A (en) | 2019-08-13 | 2019-08-13 | Positioning holding device in the truss manufacture system of escalator or moving sidewalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110369919A true CN110369919A (en) | 2019-10-25 |
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ID=68259044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910742882.1A Pending CN110369919A (en) | 2019-08-13 | 2019-08-13 | Positioning holding device in the truss manufacture system of escalator or moving sidewalk |
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| CN (1) | CN110369919A (en) |
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| CN200991815Y (en) * | 2006-12-29 | 2007-12-19 | 大连金港金属制品有限公司 | Staircase truss 3-D single-sheet formation device |
| CN203031207U (en) * | 2013-01-28 | 2013-07-03 | 昆山华德宝通力扶梯设备有限公司 | Overturning welding platform of rectangular tube escalator monolithic |
| CN203448924U (en) * | 2013-08-30 | 2014-02-26 | 天津鑫宝龙电梯集团有限公司 | Escalator truss single-piece tool |
| CN106078024A (en) * | 2016-08-24 | 2016-11-09 | 苏州新达电扶梯部件有限公司 | A kind of truss monolithic welding tooling |
| EP3348345A1 (en) * | 2017-01-13 | 2018-07-18 | SYNEY Electric (Hangzhou) Co., Ltd. | Process for truss welding tooling |
| CN209157471U (en) * | 2018-09-27 | 2019-07-26 | 浙江润阳电梯部件有限公司 | A kind of staircase and girder list spells tooling and its lower weld module |
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2019
- 2019-08-13 CN CN201910742882.1A patent/CN110369919A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200991815Y (en) * | 2006-12-29 | 2007-12-19 | 大连金港金属制品有限公司 | Staircase truss 3-D single-sheet formation device |
| CN203031207U (en) * | 2013-01-28 | 2013-07-03 | 昆山华德宝通力扶梯设备有限公司 | Overturning welding platform of rectangular tube escalator monolithic |
| CN203448924U (en) * | 2013-08-30 | 2014-02-26 | 天津鑫宝龙电梯集团有限公司 | Escalator truss single-piece tool |
| CN106078024A (en) * | 2016-08-24 | 2016-11-09 | 苏州新达电扶梯部件有限公司 | A kind of truss monolithic welding tooling |
| EP3348345A1 (en) * | 2017-01-13 | 2018-07-18 | SYNEY Electric (Hangzhou) Co., Ltd. | Process for truss welding tooling |
| CN209157471U (en) * | 2018-09-27 | 2019-07-26 | 浙江润阳电梯部件有限公司 | A kind of staircase and girder list spells tooling and its lower weld module |
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Application publication date: 20191025 |