CN218461304U - Welding production line for standard knot - Google Patents

Abstract

The utility model provides a welding production line for standard festival relates to welding production technical field, and this welding production line includes: the device comprises a cache device, a first carrying device, an assembling assembly device, a second carrying device, a transferring device and a welding assembly device; the first carrying device comprises a transmission rail extending along a first direction and a mechanical arm arranged on the transmission rail in a sliding contact manner, and the mechanical arm grabs or places the main chord member in an electromagnet suction manner; the assembling assembly device is provided with a workbench which is provided with a plurality of hole site reference parts; the second carrying device is provided with a portal crane and a frame beam for supporting the portal crane to freely walk, and the top of the frame beam is provided with a top sliding rail extending along the first direction; the feeding transfer trolley of the transfer device is used for carrying out reciprocating transfer between the workbench and the portal crane; the welding assembly device comprises a plurality of welding mechanisms, and each welding mechanism is regularly arranged in a working area defined by the frame beam.

Description

Welding production line for standard knot

Technical Field

The utility model relates to a welding production technical field particularly, relates to a welding production line for standard festival.

Background

The standard section is a main component part of the tower crane and is used for changing the height of a tower body and is provided with a standard-size tower section. The tower crane standard knot is generally divided into an integral standard knot and a sheet standard knot according to whether the tower crane standard knot can be split or not, and plays an important role in the composition of the tower crane.

At present, the intelligent production of the tower crane is a major trend of automatic production, and the quality of the whole tower crane is restricted by the processing quality of a standard knot of the tower crane. However, there are many disadvantages in the production process of the tower crane standard knot at present: 1. the structures among all parts are complex, and the automation degree is low due to multiple machining procedures; 2. the related parts have multiple types and specifications, large size and weight and more hidden dangers; 3. the tower crane has the highest proportion in the welding and other processing operations of the standard knot, but the matching of all the devices matched with the tower crane cannot be well connected and matched.

Therefore, the problems in the prior art cause production assembly workshops of most enterprises to be basically in manual/semi-automatic production, the whole machining process needs to depend on manual adjustment of workpiece positions and manual welding operation for many times, and the production efficiency is low. Meanwhile, the temperature of the welded tower crane sections is high, potential labor safety hazards and the like are hidden during transportation, and welding production and manufacturing are not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a welding production line for standard knots to solve the above problems. A welding production line for tower machine standard festival in this application, its degree of automation is high, possess advantages such as positioning accuracy is good, has reduced workman's the amount of labour and intensity of labour, improves conveying efficiency, turnover convenience, and the management of being convenient for.

The utility model adopts the following scheme:

the application provides a welding production line for standard festival, includes: the device comprises a cache device, a first carrying device, an assembling assembly device, a second carrying device, a transferring device and a welding assembly device; the buffer device is used for temporarily storing the main chord; the first carrying device comprises a transmission rail which extends and is configured along a first direction and a mechanical arm which is arranged on the transmission rail in a sliding contact manner, and the mechanical arm grabs or places the main chord in an attraction manner of an electromagnet; the assembling assembly device is provided with a workbench, the workbench is provided with a plurality of hole site reference parts, and the hole site reference parts are used for accurately limiting the main chord member at a station to be assembled and assembled after the workbench receives the main chord member grabbed and transferred by the mechanical arm, so that the assembling assembly device is suitable for assembling a plurality of sheet sections to be locked and attached on the main chord member to be assembled and fixedly connected to form a standard section to be welded; the second carrying device is provided with a portal crane and a frame beam for supporting the portal crane to freely walk, and the top of the frame beam is provided with a top sliding rail extending along a first direction; the transfer device comprises a loading transfer trolley and a discharging transfer trolley, and the loading transfer trolley is used for performing reciprocating transfer between the workbench and the portal crane; the welding assembly device comprises a plurality of welding mechanisms, and the welding mechanisms are regularly distributed in a working area defined by the frame beam; the buffer device, the first carrying device, the assembling assembly device and the second carrying device are sequentially arranged along a first direction, and a repair welding and polishing mechanism is arranged at the tail end of the production line; the blanking transfer trolley is used for carrying out reciprocating transfer between the repair welding and polishing mechanism and the portal crane.

As a further improvement, the cache device comprises: the lifting mechanism is arranged on the rack; the jacking mechanism is used for pushing the main chord upwards and lifting the main chord to be separated from the lifting piece, and the main chord can be automatically turned over and switched to move to a working state beneficial to quick grabbing by a mechanical arm in the lifting process; wherein, regularly arrange a plurality of lifting member and attached climbing mechanism.

As a further refinement, the first direction is defined as a transport direction in a cross-line direction; the transmission rail is provided with a sliding support and a driving motor for driving the sliding support to move along the transmission rail, the top of the sliding support is fixedly connected with a transverse support extending outwards, and the mechanical arm can be movably arranged at the outer end side of the transverse support up and down relatively to form a 2127474-shaped frame suitable for grabbing the main chord in a transverse state correspondingly.

As a further improvement, at least one hole position reference part is configured to be a limiting bracket which is formed on the table top of the workbench and is adapted to the leaning of the main chord, and a plurality of locking accessories are arranged on the limiting bracket; and at least one other hole site reference part is configured to be a support supporting plate arranged opposite to the limiting bracket, and the support supporting plate is convexly configured on the table top, so that a plurality of sheet sections which are respectively spliced and assembled on the main chord member are in centralized lap joint and limited on the support supporting plate and correspondingly assembled to form a triangular standard section.

As a further improvement, the loading transfer trolley freely runs between the workbench and the portal crane along the track; the feeding transfer trolley comprises a trolley body provided with a top rotary table and a guide wheel which is in sliding contact with the track and is matched with the bottom of the trolley body; the rotary table is provided with a support frame which extends outwards and is arranged, the support frame horizontally extends to the outer side along the rotary table, and two fork-shaped supports with positioning fixtures are formed.

As a further improvement, the blanking transfer trolley freely runs between the repair welding and polishing mechanism and the portal crane along the track of the blanking transfer trolley; the unloading is carried the top of dolly and is formed a rectangle and place the platform, it is equipped with a plurality of locating parts that are used for standard festival to place the joint to place the bench to place.

As a further improvement, the frame beam comprises two cross beam bodies extending along a first direction and provided with top sliding rails and a plurality of upright columns arranged at intervals and used for supporting the cross beam bodies, and the working area is formed on one side close to one of the cross beam bodies and is arranged below the two cross beam bodies in the middle.

As a further improvement, the gantry crane is configured into a double-beam structure, the gantry crane is provided with hoisting fixtures for standard sections, and the hoisting fixtures are correspondingly input to the hoisting fixtures for up-and-down hoisting and opening and closing operations after the gantry crane performs sliding contact electricity taking along a top sliding rail; and, at least two gantry cranes are equipped to be used separately for feeding and discharging.

As a further improvement, the welding mechanism comprises a welding robot and a displacement machine table for limiting the welding position of the standard knot; and two machine platforms that shift are through the mutual opposition setting of a rack, the rack is configured to can implement spacingly along X axle direction and Y axle direction with the standard festival that hoist and mount come.

As a further improvement, the repair welding and polishing mechanism comprises a positioner with a clamping station, and a temporary storage frame and a limiting frame for polishing which are arranged on two sides of the front end of the positioner, wherein the clamping station is controlled and the positioner is used for driving the standard section to overturn and switch positions between a welding station on the temporary storage frame and a polishing station on the limiting frame.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

1. the utility model provides a welding production line keeps in main chord member in buffer memory device, shifts by robotic arm of first handling device on its transmission rail, and then will follow main chord member after the magnetism is inhaled and is snatched in the buffer memory device and remove to assembling assembly device's workstation on. And the workbench is used for accurately limiting the main chord at a station to be spliced and assembled through hole position reference parts of the workbench, so that a plurality of sheet sections are locked on the main chord to form the standard sections. The material loading moves and carries the dolly and shifts between workstation and second handling device, move the standard festival hoist that the dolly transmitted and come with the material loading via gantry crane and hoist to the welding assembly device, and then realize the welding operation to the standard festival, it has promoted welding line's degree of automation greatly, improve the operational environment, and can be adapted to the transfer between each part of its standard festival of complicated tower crane, concatenation and go up the unloading operation, can show security and the operability that promotes among the standard festival welding production process.

2. Especially, arrange in proper order along the first direction of production line and set up buffer memory device, first handling device, assemble assembly device and second handling device for the overall arrangement of whole production line is more reasonable, the transmission shifts efficiency better, and does benefit to the last unloading of each part material and shifts. And, still be equipped with repair welding and grinding machanism at the end of production line, the unloading moves and carries the dolly and shift between gantry crane and repair welding and grinding machanism, corresponds the standard festival input to repair welding or the station department of polishing that welds the completion after the unloading to realize further maintenance and polish processing operation, promote the functional diversity of production line.

Drawings

FIG. 1 is a schematic structural diagram of a welding production line for standard knots according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cache device for a welding production line of a standard knot according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first handling device of a welding production line for standard knots according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a splicing assembly device of a welding production line for standard knots according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a loading transfer trolley of a transfer device for a welding production line of a standard knot according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of the transmission assembly of FIG. 5;

fig. 7 is a schematic structural view of a blanking transfer trolley of a transfer device for a welding production line of a standard knot according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second handling device for a welding production line of standard knots according to an embodiment of the present invention;

FIG. 9 is an enlarged partial schematic view of FIG. 8;

FIG. 10 is a schematic structural diagram of a welding assembly apparatus for a standard knot welding line according to an embodiment of the present invention;

FIG. 11 is a schematic view of the indexing table of FIG. 10;

fig. 12 is a schematic structural diagram of a repair welding and grinding mechanism of a welding production line for standard knots according to an embodiment of the present invention.

An icon:

1-a cache device; 11-a frame; 12-a jacking mechanism;

2-a first handling device; 21-a transmission track; 22-a mechanical arm; 23-a sliding support; 24-a drive motor; 25-a transverse bracket;

3-assembling the assembly device; 31-a workbench; 32-hole site reference features; 33-a lock attachment;

4-a second handling device; 41-gantry crane; 411-hoisting clamp; 42-frame beam; 421-a beam body; 422-upright column body;

5-a transfer device; 51-a loading transfer trolley; 511-vehicle body; 512-a guide wheel; 513-a turntable; 514-a support frame; 515-a driving wheel; 516-a driven wheel; 517-a transmission member; 518-a tensioning member; 52-blanking transfer trolley; 521-a rectangular placing table; 522-a stop;

6-welding the assembly device; 61-a welding robot; 62-a position changing machine; 63-placing the rack;

7-repair welding and polishing mechanism; 71-a position changing machine; 72-temporary storage rack; 73-a limiting frame;

a-standard section; a1-a main chord; a2-segment.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

With reference to fig. 1 to 12, the present embodiment provides a welding line for standard knots, comprising: the device comprises a cache device 1, a first conveying device 2, an assembling assembly device 3, a second conveying device 4, a transferring device 5 and a welding assembly device 6.

The buffer device 1 is used for temporarily storing the main chord A1. The first carrying device 2 includes a conveying rail 21 extending in the first direction, and a robot arm 22 slidably disposed on the conveying rail 21, and the robot arm 22 picks up or places the main chord A1 in an electromagnetic attraction manner. The assembling device 3 has a workbench 31, the workbench 31 is provided with a plurality of hole site reference parts 32, and the hole site reference parts 32 are used for accurately defining the main chord A1 at the station to be assembled and assembled after the workbench 31 receives the main chord A1 grabbed and transferred by the mechanical arm 22, and further suitable for assembling a plurality of sheet sections A2 to be locked and attached on the main chord A1 to be assembled and fixedly connected into the standard section a to be welded. The second carrying device 4 is provided with a gantry crane 41 and a frame beam 42 for supporting the gantry crane 41 to freely travel, and the top of the frame beam 42 is provided with a top slide rail extending in the first direction. The transfer device 5 includes a loading transfer cart 51 and a unloading transfer cart 52, and the loading transfer cart 51 is used for reciprocating transfer between the working table 31 and the gantry crane 41. The welding assembly device 6 includes a plurality of welding mechanisms, and each welding mechanism is regularly arranged in a working area defined by the frame beam 42.

The buffer device 1, the first carrying device 2, the assembling assembly device 3 and the second carrying device 4 are sequentially arranged along a first direction, and a repair welding and polishing mechanism 7 is arranged at the tail end of the production line. The blanking transfer trolley 52 is used for carrying out reciprocating transfer between the repair welding and polishing mechanism 7 and the portal crane 41.

Above-mentioned a welding production line for tower machine standard festival A, its degree of automation is high, possess advantages such as have that positioning accuracy is good, reduced workman's the amount of labour and intensity of labour, improve conveying efficiency, the turnover is convenient, and the management of being convenient for. Specifically, the main chord A1 is temporarily stored in the temporary storage device 1, and the robot arm 22 of the first carrying device 2 transfers the main chord A1 on the conveying rail 21, so as to move the main chord A1 magnetically attracted and captured from the temporary storage device onto the workbench 31 of the assembling device 3. And the worktable 31 is used for accurately defining the main chord A1 at a work station to be spliced and assembled through the hole site reference piece 32 thereof, so that a plurality of segments A2 are locked on the main chord A1 to form the standard segment a. The loading moves and carries dolly 51 and shifts between workstation 31 and second handling device 4, move the standard festival A hoist that dolly 51 was transmitted and come with the loading via gantry crane 41 and hoist to welding assembly device 6 in, and then realize the welding operation to standard festival A, it has promoted welding production line's degree of automation greatly, improve the operational environment, and can be adapted to the transfer between its standard festival A's of complicated tower crane each part, splice and go up the unloading operation, can show security and the operability that promotes in the standard festival A welding production process.

Especially, arrange in proper order along the first direction of production line and set up buffer memory device 1, first handling device 2, assemble assembly device and second handling device 4 for the overall arrangement of whole production line is more reasonable, the transmission shifts efficiency better, and does benefit to the last unloading of each part material and shifts. And, still be equipped with repair welding and grinding machanism 7 at the end of production line, unloading move and carry dolly 52 and shift between gantry crane 41 and repair welding and grinding machanism 7, correspond standard festival A that welding after the unloading was accomplished and input to repair welding or the station department of polishing to realize further maintenance and polish processing operation, promote the functional diversity of production line.

As shown in fig. 2, in the present embodiment, the buffer apparatus 1 includes: a frame 11 provided with a lifting member, and a lifting mechanism 12 provided on the frame 11. The jacking mechanism 12 is configured to push the main chord A1 upward and lift the main chord A1 to be separated from the lifting member, and enable the main chord A1 to automatically turn over and switch to a working state that is favorable for the mechanical arm 22 to quickly grab the main chord A1 during the lifting process. Specifically, the lifting piece is in a V shape, the main chord A1 is lifted on the rack 11, and then the lifting mechanism 12 is used for lifting and moving to drive the main chord A1 to be far away from the lifting piece, and the main chord A1 is turned to 45 degrees in the lifting process to be adaptive to the magnetic attraction of the mechanical arm 22 for grabbing. It should be mentioned that, for the specific configuration of the lifting member and the jacking mechanism 12 thereof in the cache device 1, please refer to the patent content of the application No. 202122337772.2 previously applied by the present applicant, which is named as a clamping device for workpiece adjustment, and further description is omitted here.

Furthermore, in the above, a plurality of lifting members and their associated jacking mechanisms 12 are regularly arranged. Therefore, the rack 11 is simultaneously provided with a plurality of main chords A1, preferably at least eight main chords A1 which are arranged in respective lifting pieces at intervals, so that the transfer efficiency of the production line is remarkably improved, and the standby energy consumption is reduced as much as possible.

As shown in fig. 3, in the present embodiment, the first direction is defined as a conveying direction in the cross-line direction (as shown in the horizontal cross-line direction in fig. 1). The transmission rail 21 is provided with a sliding bracket 23 and a driving motor 24 for driving the sliding bracket 23 to move along the transmission rail 21. A transverse bracket 25 extending outwards is fixedly connected to the top of the sliding bracket 23, and the mechanical arm 22 is relatively movably arranged at the outer end side of the transverse bracket 25 up and down to correspondingly form a rectangular frame suitable for grabbing the main chord A1 in a transverse state. Therefore, the frame in the shape of a letter 21274enables the mechanical arm 22 to stably ascend, descend and slide on one side of the support, and is greatly suitable for quickly grabbing and smoothly transferring the main chord A1. Obviously, the driving motor 24 drives the sliding support 23 to linearly move relative to the transmission rail 21, which belongs to the existing rail transfer transmission technology, and the electromagnet is arranged on the grabbing part of the mechanical arm 22 to further realize the attraction grabbing of the main chord A1, which is an existing electromagnet structure and is not limited too much here.

As shown in fig. 4, in the present embodiment, at least one of the hole site reference members 32 is configured as a position limiting bracket formed on the top surface of the working table 31 and adapted to the main chord A1 to lean against, and a plurality of locking accessories 33 are provided on the position limiting bracket. And at least one other hole site reference member 32 is configured as a support supporting plate arranged opposite to the limit bracket, and the support supporting plate is convexly configured on the table top, so that the plurality of segments A2 which are respectively spliced and assembled on the main chord A1 are in centralized lap joint and limited on the support supporting plate and correspondingly assembled to form a triangular standard segment A. Preferably, the locking attachments 33 on both sides of the position limiting bracket are respectively used for limiting the main chord A1 on the workbench 31 in an operable manner through a three-point supporting manner, and then the V-shaped segment A2 and the I-shaped segment of the supporting plate pair are respectively spliced at both ends and the middle part of the main chord A1 to form the standard segment A of the triangular support in an assembling manner, and the two segments A2 are mutually connected at the ends and supported and limited on the supporting plate, so as to improve the splicing stability and operability.

It should be noted that, in this embodiment, the main chord A1 and the segment A2 spliced and locked on the surface of the workbench 31 can be realized manually, and the assembled standard segment a is further transferred to the loading transfer trolley 51 in the next process manually, which is a difficult manual operation, and obviously does not affect the automation work of the whole production line.

As shown in fig. 5 to 6, in the present embodiment, the loading transfer cart 51 freely travels between the table 31 and the gantry crane 41 along the rail. The loading transfer trolley 51 comprises a trolley body 511 provided with a top rotary table 513 and a guide wheel 512 which is matched with the rail in a sliding way at the bottom of the trolley body 511. The rotary table 513 is provided with a support bracket 514 extending outwards, and the support bracket 514 extends horizontally to the outside along the rotary table 513 and forms two fork-shaped brackets with positioning fixtures.

The device further comprises a first driving member for the guide wheel 512 and a second driving member (not shown) for the rotary table 513, and a transmission assembly is connected between the first driving member and the guide wheel 512. The transmission component comprises a driving wheel 515 butted with the first driving member, two driven wheels 516 butted with the two guide wheels 512 on the same side respectively, and a transmission member 517 connected between the driving wheel 515 and the driven wheels 516, and the transmission member 517 is provided with a tension member 518. The second driving member is in bearing connection with the rotary table 513 and is used for controlling the rotary table 513 to rotate along the axial direction thereof to drive the supporting frame 514 thereof to rotate and limit the rotation at the belonging position.

Thereby, be equipped with guide pulley 512 in the bottom of automobile body 511 and be used for with the rail looks sliding fit, be equipped with revolving platform 513 and support frame 514 at the top of automobile body 511 to walk behind the rail at guide pulley 512 fast, steadily remove to required station department, and through the mode of gyration support, the work piece that corresponds its transportation turns to the transposition, can carry out 360 comprehensive rotations, in order to promote the flexibility of automobile body 511, and need not to do functional design again to down the station, very big satisfied the demand of transfer transmission. And, the driving mechanism is provided with a second driving member for rotating and interlocking with the rotating table 513 to a position where steering is required. And a transmission component is arranged between the first driving part and the guide wheel 512, and the transmission component correspondingly transmits the power of the first driving part to the guide wheel 512 in a high-efficiency manner through the connection and matching of the driving wheel 515 and the driven wheel 516 of the transmission component under the connection and matching of the transmission part 517, so that the walking stability and synchronism of the trolley are ensured. In particular, a tension member 518 is provided on the driving member 517 to promote a compact arrangement between the structural members during driving to improve the power transmission environment.

The two driven wheels 516 are oppositely arranged at the left side and the right side below the driving wheel 515, the wheel structures of the three wheels are cooperatively matched on the same transmission plane, and the transmission part 517 is configured to surround and sleeve the elastic belt between the driving wheel 515 and the two driven wheels 516. Therefore, the driving wheel 515 and the driven wheel 516 are in belt transmission connection through a belt on the same transmission plane, so as to achieve the purpose of smooth transmission. It is obvious that the wheel structure in the above is taken as a general term comprising a driving wheel 515 and two driven wheels 516.

Wherein a tensioning member 518 is provided between any two wheel structures, and the tensioning member 518 is configured as a tensioning wheel. Wherein, the tensioning wheel presses and tightens the belt of the path section from outside to inside between the two wheel structures. Specifically, the tension pulley is configured as a follower pulley that presses on the belt to change the wrap angle of the drive pulley 515 and the driven pulley 516 or to control the tension of the belt. When the center distance of the belt cannot be adjusted, the belt can be tensioned by the tensioning wheel.

Wherein each tensioner pulley is constantly positioned on the drive plane and three tensioner pulleys are opposed to each other to form a tensioner area having an inverted triangle shape (as shown in fig. 6). The tension pulley located between the two driven pulleys 516 is disposed centrally between the two driven pulleys, and the belt is wound around the outer peripheral side of any one of the driven pulleys 516 to the upper end side of the tension pulley. Correspondingly, the tension pulley between the driving pulley 515 and the driven pulley 516 is configured such that a belt wound around the outer peripheral side of the driving pulley 515 is vertically attached to the outer peripheral side of the associated tension pulley until it is engaged with the outer end side of the driven pulley 516. In the aforesaid, through direction, the tensioning effect of each take-up pulley between the wheel structure, rationally distributed and design benefit are applicable to the high-efficient transmission of area conveying.

The first driving member is a servo motor, the driving wheel 515 is sleeved and externally disposed on an output shaft of the first driving member, and the driven wheel 516 is axially connected with the guide wheel 512 thereof so as to be coaxially disposed on the outer side of the vehicle body 5111. The driving wheel 515 and the output shaft are sleeved in a direct connection transmission mode, so that unnecessary transmission energy consumption can be reduced.

The second driving member is a servo motor, and an output shaft of the second driving member is longitudinally butted with the rotary table 513. The support bracket 514 extends horizontally to the outside along the turntable 513 and forms two fork-shaped brackets with positioning fixtures. The servo motor is used for providing 360-degree rotation for the rotary table 513 along the axial direction of the rotary table, the workpiece is clamped on the positioning clamp and limited behind the fork-shaped support, the servo motor is controlled to rotate by 90 degrees, 180 degrees, 270 degrees or 360 degrees, so that the flexibility of the trolley body 511 is higher, and the trolley is adaptive to different downlink stations to be flexibly and quickly connected into the workpiece.

The transfer trolley is suitable for the carrying environment of various types of rail trolleys, and the trolley body 511 is supported on the rail in a matching way through the guide wheel 512 arranged at the bottom of the trolley body, so that the guide wheel 512 is in sliding contact fit with the guide rail on the rail, the power transmission process for driving the trolley to run is more efficient and stable, and the defects of short plates of the rail trolleys can be effectively solved.

As shown in fig. 7, in the present embodiment, the blanking transfer carriage 52 freely travels along the rail between the repair welding and grinding mechanism 7 and the gantry crane 41. The blanking transfer trolley 52 has a rectangular placing table 521 formed on the top thereof, and the placing table is provided with a plurality of stoppers 522 for placing and clamping the standard knot a. Specifically, the stoppers 522 are configured to allow the standard knot a to be lifted from top to bottom to be placed on the placing table as follows, and are engaged with the respective stoppers 522 to restrict the standard knot a from being shifted in the horizontal direction with respect to the placing table. Obviously, the blanking transfer trolley 52 can also be equipped with the transmission component as mentioned above, so as to improve the transmission efficiency and smooth transfer of the transfer trolley.

As shown in fig. 8 and 9, in the present embodiment, the frame beam 42 includes two cross beam bodies 421 extending along the first direction to form a top sliding rail, and a plurality of upright columns 422 arranged at intervals for supporting the cross beam bodies 421, and the working area is formed at a side close to one of the cross beam bodies 421 and is centrally disposed below the two cross beam bodies 421. Wherein, a working area for the welding mechanism is defined between the two cross beam bodies 421, so that the standard knot a lifted by the gantry crane 41 can be quickly transferred to the welding mechanism in the working area.

Further, the gantry crane 41 is configured as a double-beam structure, and is provided with a lifting clamp 411 for the standard knot a, and the lifting clamp 411 is correspondingly input to the lifting clamp 411 for up-and-down lifting and opening and closing operations after the gantry crane 41 performs sliding contact electricity along the top slide rail. And, at least two gantry cranes 41 are equipped to be used separately for feeding and discharging. Wherein, the gantry crane 41 of two girder construction can promote the security of hoist and mount process greatly, ensures to snatch and places sufficient intensity occasionally of work piece. And the hoisting clamp 411 can adopt the existing form of opening and closing clamps, and can hoist the workpiece to the welding mechanism. In this embodiment, the opposition is equipped with two independent sliding contact gantry crane 41 at the top slide rail, is used for carrying out the material loading hoist and mount of work piece alone near gantry crane 41 of workstation 31 one side, and is used for carrying out the unloading hoist and mount of work piece alone keeping away from gantry crane 41 of workstation 31 one side, and it divides the work load more clear and definite, and reasonable in design and efficiency are better.

As shown in fig. 10 and 11, in the present embodiment, the welding mechanism includes a welding robot 61 and a positioner table 62 for defining the welding position of the standard knot a. And the two displacement machines 62 are arranged oppositely through a placing frame 63, and the placing frame 63 is configured to limit the lifted standard knot A along the X-axis direction and the Y-axis direction (horizontal direction). Wherein, welding robot 61 is intelligent multiaxis welding machines hand to welding operation is implemented to standard festival A on the rack 63 more accurately. Space for overturning the placing frame 63 and the standard knot A thereof is formed between the two displacement machines 62, so that the multi-directional position adjustment is facilitated to adapt to the welding operation.

As shown in fig. 12, in the present embodiment, the repair welding and polishing mechanism 7 includes a positioner 71 having a clamping station, and a temporary welding station 72 and a limiting frame 73 disposed at both sides of the front end of the positioner 71, and the clamping station is controlled by the positioner 71 to drive the standard knot a to turn over and switch positions between the welding station on the temporary welding station 72 and the polishing station on the limiting frame 73. The limiting frame 73 and the temporary storage frame 72 are arranged on two sides of the front end of the positioner 71 in an opposite mode respectively, so that selective repair welding operation and polishing operation are conducted on the turned standard knot A, reasonable layout among all stations in the device is greatly improved, and welding production and manufacturing of the tower crane standard knot A are remarkably improved.

It should be mentioned that, a visiting channel and a logistics channel are respectively arranged along the two sides of the production line, so that the use flexibility of the welding production line is improved, and the production environment is better.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims (8)

1. A welding line for standard knots, characterized in that it comprises:

the buffer device is used for temporarily storing the main chord member;

the first carrying device comprises a transmission rail which extends and is configured along a first direction and a mechanical arm which is arranged on the transmission rail in a sliding contact manner, and the mechanical arm grabs or places the main chord in an electromagnet suction manner;

the assembling assembly device is provided with a workbench, the workbench is provided with a plurality of hole site reference parts, and the hole site reference parts are used for accurately limiting the main chord member at a station to be assembled and assembled after the workbench receives the main chord member grabbed and transferred by the mechanical arm, so that the assembling assembly device is suitable for assembling a plurality of sheet sections to be locked and attached on the main chord member to be assembled and fixedly connected into a standard section to be welded;

the second carrying device is provided with a portal crane and a frame beam for supporting the portal crane to freely walk, and the top of the frame beam is provided with a top sliding rail extending along the first direction;

the transfer device comprises a loading transfer trolley, and the loading transfer trolley is used for performing reciprocating transfer between the workbench and the portal crane;

the welding assembly device comprises a plurality of welding mechanisms, and the welding mechanisms are regularly distributed in a working area defined by the frame beam;

the buffer device, the first carrying device, the assembling device and the second carrying device are sequentially arranged along a first direction.

2. Welding line for standard knots according to claim 1, characterised in that said buffer means comprise: the lifting mechanism is arranged on the rack; the jacking mechanism is used for pushing the main chord upwards and lifting the main chord to be separated from the lifting piece, and the main chord can be automatically turned over and switched to move to a working state beneficial to quick grabbing by a mechanical arm in the lifting process; wherein, regularly arrange a plurality of lifting member and attached climbing mechanism.

3. Welding line for standard knots according to claim 1, characterised in that said first direction is defined as the transport direction in the transverse direction of the line; the transmission rail is provided with a sliding support and a driving motor for driving the sliding support to move along the transmission rail, the top of the sliding support is fixedly connected with a transverse support extending outwards, and the mechanical arm can be movably arranged at the outer end side of the transverse support up and down relatively to form a 2127474-shaped frame suitable for grabbing the main chord in a transverse state correspondingly.

4. The welding production line for standard knots of claim 1, wherein at least one of said hole site reference members is configured as a position-limiting bracket formed on the table top of the worktable and adapted to the main chord member to lean against, and a plurality of locking accessories are provided on the position-limiting bracket;

and at least one other hole site reference part is configured to be a support supporting plate arranged opposite to the limiting bracket, and the support supporting plate is convexly configured on the table top, so that a plurality of sheet sections which are respectively spliced and assembled on the main chord member are in centralized lap joint and limited on the support supporting plate and correspondingly assembled to form a triangular standard section.

5. The welding production line for the standard knot as claimed in claim 1, wherein the loading transfer trolley freely travels between the workbench and the gantry crane along the track thereof; the feeding transfer trolley comprises a trolley body provided with a top rotary table and a guide wheel which is in sliding contact with the track and is matched with the bottom of the trolley body; the rotary table is provided with a support frame which extends outwards and is arranged, the support frame horizontally extends to the outer side along the rotary table, and two fork-shaped supports with positioning fixtures are formed.

6. The welding line for standard knots according to claim 1, characterised in that said frame beam comprises two cross-beam bodies extending in a first direction provided with means forming top runners, and a plurality of spaced-apart uprights for supporting the cross-beam bodies, said work area being formed close to one side of one of the cross-beam bodies and centrally arranged below the two cross-beam bodies.

7. The welding production line for the standard knot according to claim 1, wherein the portal crane is configured into a double-beam structure and is provided with a hoisting clamp for the standard knot, and the hoisting clamp is correspondingly input to the hoisting clamp for up-and-down hoisting and opening and closing operations after the portal crane performs sliding contact electricity taking along a top sliding rail; and, at least two gantry cranes are equipped to be used separately for feeding and discharging.

8. The welding production line for standard knots according to claim 1, characterized in that said welding mechanism comprises a welding robot, and a displacement table for defining the welding position of the standard knots; and two machine platforms that shift are opposite to each other through a rack and are set up, the rack is configured to can implement spacingly along X axle direction and Y axle direction with the standard festival that the hoist and mount come.

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