CN217253826U - Automatic production equipment for large-tonnage welded frame - Google Patents

Abstract

The utility model discloses an automated production of large-tonnage welding frame equips, including the production station to and automatic whole assembly platform, longmen over-and-under type machine of shifting, set up anti-deformation overhead system, welding robot, RGV lift dolly transmission system on automatic whole assembly platform, can realize the location assembly welding shaping of large-tonnage frame, station circulation transport, frame upset that shifts, frame anti-deformation, robot welding automation function. The frame is loaded on the automatic integral assembly platform, and the automatic integral assembly platform is loaded on each production station by the RGV lifting trolley and flows in sequence. The utility model provides a welding automation is competent, and welding efficiency is high, transmission efficiency is high and the security is high automated production equipment of a large-tonnage welding frame. The frame welding assembly line mode is adopted, the production organization mode is fine in labor division and high in production efficiency, the production efficiency of products can be improved, and the production quality can be guaranteed.

Description

Automatic production equipment for large-tonnage welded frame

Technical Field

The utility model relates to an automobile manufacturing equipment technical field especially relates to an automated production of large-tonnage welding frame is equipped.

Background

The frame is the framework of the whole automobile, is the installation foundation of all parts on the automobile, bears various impact loads and torsional forces from the inside and the outside of the automobile, and is an important component part of a special automobile.

For a large-tonnage frame, because the complexity of the individual structure of the large-tonnage frame is different from that of a common frame and the difficulty of the process technology, the existing frame production equipment has the disadvantages of backward mode, low production efficiency, poor product consistency and low product quality stability, and the development and the promotion of the manufacturing capacity of the large-tonnage frame are restricted.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the utility model provides an automatic production device of a large-tonnage welding frame with high welding automation degree, high welding efficiency, high transmission efficiency and reliable safety,

the automatic production equipment for the large-tonnage welding frame comprises a production station, an automatic integral assembling platform, a gantry lifting type position changing machine, a reverse deformation jacking system arranged on the automatic integral assembling platform, a welding robot and an RGV lifting trolley transmission system, and can realize the automatic functions of positioning, assembly welding and forming, station flow-transfer conveying, frame displacement and overturning, frame reverse deformation and robot welding of the large-tonnage frame.

The frame is loaded on the automatic integral assembly platform, and the automatic integral assembly platform is loaded on each production station by the RGV lifting trolley and flows in sequence.

Preferably, the production stations include five production stations including a first station as a frame body assembling station, a second station as a frame body welding station, a third station as a front/rear leg front beam assembling station, a fourth station as a front/rear leg front beam welding station, and a fifth station as a repair welding station.

In addition, a reserved station I is arranged between the first station and the second station, and a reserved station II is arranged between the second station and the third station and is used for subsequent capacity expansion. The device also comprises a first detection platform and a second detection platform which are arranged opposite to the fifth station after the fifth station processes the flow, and the first detection platform and the second detection platform are used for detecting the frame after welding.

Preferably, the gantry elevation type positioner comprises two second station gantry elevation type positioners arranged on a second station and a fourth station and a fifth station gantry elevation type positioner arranged on a fifth station.

Preferably, the reverse deformation roof pressing system comprises a set of reverse deformation roof pressing system pressing devices located in the middle of the automatic integral assembling platform and two sets of reverse deformation roof pressing system hydraulic jacking mechanisms located at two ends of the automatic integral assembling platform.

Preferably, the RGV lifting trolley conveying system comprises an RGV lifting trolley and an RGV trolley guide rail penetrating through the whole production station.

Preferably, the five production stations, the reserved station I, the reserved station II, the first detection platform and the second detection platform are arranged on a foundation ground plane, circulation grooves are formed in the middle positions of the five production stations and the reserved station on the foundation ground plane, and RGV trolley guide rails penetrating through the whole production stations are arranged in the circulation grooves.

Preferably, each station is provided with a positioning device, and the positioning device is provided with a conical pin shaft which is used for being matched with a station positioning interface of the integral assembling platform so as to fix the integral assembling platform.

Furthermore, a sensor is arranged on each station to prompt the whole assembly platform to be in place, and a control system receives in-place signals sent by the sensors and controls the positioning device, the clamping device and the welding robot to act.

Furthermore, each station is also provided with a hydraulic quick-inserting connector and a pressure maintaining device, so that the power source can be quickly connected after the integral assembling platform is in place.

Preferably, the front end guide mechanism is arranged at the front end of the circulation groove of the first station, the side guide mechanisms are symmetrically arranged at the front end and the rear end of the circulation groove, the first station half gantry crane is arranged behind the side guide mechanism at the front end, the first station positioning devices are symmetrically arranged at the front end and the rear end inside the circulation groove, and the plurality of first station L-shaped positioning devices are arranged in the middle of the circulation groove.

Preferably, the second station comprises a second station gantry lifting type positioner and a welding robot, wherein the second station gantry lifting type positioner is positioned at the front end and the rear end of the second station and is arranged on the circulation groove, and the welding robot is arranged along the second station.

Preferably, the second station gantry elevation type positioner comprises a positioner portal frame, and a positioner clamping mechanism, a positioner elevating mechanism and a positioner slewing mechanism which are arranged on the positioner portal frame, wherein the positioner clamping mechanism comprises two parts of a positioner clamping hydraulic guide column support and two parts of a positioner clamping hydraulic guide column which are arranged on the positioner clamping hydraulic guide column support; the positioner lifting mechanism comprises a positioner lifting mechanism spiral lifting rod vertically arranged on a positioner portal frame, a positioner lifting mechanism linear guide rail and a positioner lifting mechanism power mechanism, and an output shaft of the positioner lifting mechanism power mechanism is connected to the positioner lifting mechanism spiral lifting rod; the positioner slewing mechanism comprises a positioner slewing mechanism slewing disc connected to a positioner lifting mechanism slewing system power box connected to the bottom end of a spiral lifting rod of the positioner lifting mechanism and an output shaft of the positioner lifting mechanism slewing system power box, and the positioner lifting mechanism drives the positioner slewing mechanism to vertically lift so as to provide a circulation space for the RGV lifting trolley. The hydraulic guide post support is fixedly arranged on a slewing disc of the slewing mechanism of the positioner, and the hydraulic guide post support is driven by the slewing disc of the slewing mechanism of the positioner to rotate.

Preferably, the third station comprises a third station half gantry crane crossing the third station, two third positioning devices symmetrically arranged in a circulation groove of the third station, first supporting leg positioning devices symmetrically arranged at the edge of the circulation groove, a hydraulic station and a second supporting leg positioning device.

Preferably, the fifth station comprises a fifth station gantry lifting type positioner and a fifth station positioning device, the fifth station gantry lifting type positioner and the fifth station positioning device are arranged on the circulation groove and are positioned at the front end and the rear end of the fifth station, and the positioning device is provided with a conical head pin shaft and is used for fixing the integral assembly platform.

Preferably, the integral assembly platform comprises an integral assembly platform main body frame, and a front beam positioning assembly sliding mechanism, a clamping mechanism and a positioning device which are arranged on the integral assembly platform main body frame and used for placing and clamping a front beam, a longitudinal beam, a cross beam and supporting legs; the device also comprises an integral assembly platform rolling wheel at the bottom, an integral assembly platform, an RGV lifting trolley positioning interface and an integral assembly platform station positioning interface.

The whole assembly platform of automation equipment transport to each station after by RGV lift dolly, the conical head round pin axle hole of whole assembly platform station location interface is adjusted well with each station platform positioner's conical head round pin axle, inserts conical head round pin axle under whole assembly platform self weight effect, realizes the location.

Preferably, the integral assembling platform comprises a reverse deformation coping system which is divided into a reverse deformation pressing device and a hydraulic jacking mechanism of the reverse deformation coping system;

the anti-deformation coping system pressing device comprises an anti-deformation coping system pressing beam, an anti-deformation coping system pressing movable joint bolt adjusting and connecting device and an anti-deformation coping system supporting column;

the hydraulic jacking mechanism of the anti-deformation jacking system comprises an anti-deformation jacking system hydraulic jacking cross beam, an anti-deformation jacking system hydraulic jacking oil cylinder and an anti-deformation jacking system hydraulic jacking guide post;

the integral assembling platform is further provided with a positioner clamping shaft sleeve which is matched with the positioner clamping hydraulic guide column and used for fixing the integral assembling platform on the second station gantry lifting type positioner.

Preferably, the RGV lifting trolley comprises an RGV lifting trolley supporting platform, an RGV lifting trolley travelling mechanism arranged on the RGV lifting trolley supporting platform, an RGV lifting trolley conical guide positioning device matched with the integral assembly platform and the RGV lifting trolley positioning interface, and an RGV lifting trolley hydraulic jacking device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a welding automation is competent, and welding efficiency is high, transmission efficiency is high and the security is high automated production equipment of a large-tonnage welding frame. The utility model provides a frame welding assembly line mode is the production organization form that work divides the worker thin, production efficiency is higher, can improve product production efficiency, guarantee production quality and improve the production management level. Automatic welding is adopted in the frame welding production line, so that the welding quality and the stability of the frame are ensured, and the welding efficiency is improved. After the automatic integral assembling and positioning platform is put into use, technological equipment of each station of the frame welding production line is uniformly fixed, material allocation is uniformly fixed, personnel allocation is uniformly fixed, and the management capability of management personnel is high in efficiency and convenient and fast to greatly improve.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to constitute a limitation on the invention.

FIG. 1 is a layout diagram of the stations of the automatic equipment for producing large-tonnage frames according to the present invention;

FIG. 2 is a flow chart of the automatic assembly process for manufacturing a large-tonnage frame according to the present invention;

FIG. 3 is a first station and tooling structure diagram of the automated equipment for producing large-tonnage frames of the present invention;

FIG. 4 is a second (fourth) station and tooling structure diagram of the automatic equipment for producing large-tonnage vehicle frames of the present invention;

FIG. 5 is a structural diagram of a third station and a tooling of the automatic equipment for producing a large-tonnage frame of the utility model;

FIG. 6 is a diagram of a fifth station and a tooling structure of the automatic equipment for producing large-tonnage frames of the present invention;

fig. 7 is a structural diagram of the overall assembly platform according to the present invention;

fig. 8 is a bottom view of the integral assembly platform of the present invention;

fig. 9 is a structural diagram of a beam positioning device of the L-shaped positioning structure of the present invention;

fig. 10 is a structural diagram of the reversible deformation roof-pressing system of the present invention;

fig. 11 is a structure diagram of the jacking system of the RGV lifting trolley of the present invention;

FIG. 12 is a structural diagram of the gantry lifting type positioner of the present invention;

fig. 13 is a schematic view of the positioning frame of the first station L-shaped positioning device of the present invention.

Wherein, 01-a first station; 02-reserving a first station; 03-a second station; 04-reserving a second station; 05-a third station; 06-a fourth station; 07-a fifth station; 08-integral assembly platform; 09-detection platform I; 10-detection platform II; 11-return rail;

a first station: 0101-a basic ground plane, 0102-a front end guide mechanism, 0103-a side guide mechanism, 0104-a first station half gantry crane, 0105-a first station positioning device, 0106-an RGV lifting trolley, 0107-a first station L-shaped positioning device, 0108-a first station beam positioning pin shaft, and 0109-an RGV trolley guide rail;

010601-RGV lifting trolley walking mechanism; 010602-RGV lift car taper guiding and positioning device; 010603-hydraulic lifting device of RGV lifting trolley; 010604-RGV lift car support platform;

010701-L type locating support; 010702-L type locating support slide rail positioner;

second/quadruplex position: 0201-a second station gantry lifting type positioner, 020101-the positioner clamps a hydraulic guide column, 020102-the positioner clamps a hydraulic guide column support, 020103-the positioner lifting mechanism spiral lifting rod, 020104-the positioner lifting mechanism linear guide rail, 020105-the positioner lifting mechanism power system, 020106-the positioner slewing mechanism rotary disc, 020107-the positioner lifting mechanism rotary system power box and 020108-the positioner gantry; 0202-welding robot, 0203-second station locating device;

a third station: 0301-third station semi-gantry crane, 0302-third station positioning device, 0303-first leg positioning device, 0304-hydraulic station, 0305-second leg positioning device;

a fifth station: 0501-a fifth station gantry elevation type positioner, 0502-a fifth station positioning device;

0801-integrally assembling a platform main body frame, 0802-a front beam positioning assembly sliding mechanism and 0803-a front beam front end clamping mechanism; 0804-positioning device for front end of longitudinal beam; 0805-fixing and positioning the device on the cross beam; 080501-fixing an L-shaped positioning bracket by a cross beam; 0806-longitudinal beam hydraulic positioning and clamping mechanism; 0807-reversible deformation coping system pressing device; 080701-pressing the beam by a reversible deformation roof pressing system; 080702-an anti-deformation coping system compresses a movable joint bolt adjusting and connecting device; 080703-supporting columns of a reversible deformation roof pressing system; 0808-a cross beam positioning device pin shaft; 0809-rear leg positioning device; 0810-a longitudinal beam rear end jacking mechanism; 0811-hydraulic jacking mechanism of a reverse deformation coping system; 081101-hydraulic jacking beam of the reversible deformation coping system; 081102-hydraulic jacking oil cylinder of reverse deformation coping system; 081103-hydraulic jacking guide post of reverse deformation coping system; 0812-a shifting machine clamps a shaft sleeve, 0813-a front beam rear end centering positioning mechanism; 0814-a front end centering positioning mechanism of the front beam; 0815-a front end positioning and clamping mechanism of a front beam, 0816-a rolling wheel of an integral assembly platform; 0817-integral assembly platform and RGV lifting trolley positioning interface; 0818-integral assembly platform station positioning interface.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

An automatic production device of a large-tonnage welding frame is shown in figure 1 and comprises five production stations, an automatic integral assembly platform 08, a gantry elevation type position changer (comprising a second and a fourth station gantry elevation type position changer 0201 and a fifth station gantry elevation type position changer 0501), a reverse deformation pressing system (comprising two sets of reverse deformation pressing system pressing devices 0807 positioned at the middle position of the automatic integral assembly platform 08 and hydraulic lifting mechanisms 0811 positioned at two ends of the automatic integral assembly platform 08) arranged on the automatic integral assembly platform 08, two automatic welding robots 0202 positioned on the second station and the fourth station, an RGV lifting trolley transmission system (comprising an RGV lifting trolley 0106 and an RGV trolley guide rail 0109 penetrating through the whole production station), and can realize the positioning assembly welding forming, the station flow transfer conveying and the positioning of the large-tonnage frame, The automatic welding robot has the functions of frame displacement overturning, frame reversible deformation and robot welding automation.

The frame is loaded on the automatic integral assembly platform 08, and the automatic integral assembly platform 08 is loaded on five production stations by an RGV lifting trolley 0106 to flow in sequence.

The five production stations comprise a first station 01 serving as a frame main body assembling station, a second station 03 serving as a frame main body welding station, a third station 05 serving as a front/rear support leg front beam assembling station, a fourth station 06 serving as a front/rear support leg front beam welding station and a fifth station 07 serving as a repair welding station.

And a reserved station I02 is arranged between the first station and the second station, and a reserved station II 04 is arranged between the second station and the third station and is used for subsequent capacity expansion.

The device also comprises a first detection platform 09 and a second detection platform 10 which are arranged opposite to the fifth station after the fifth station 07 is processed, and are used for detecting the frame after welding.

Five production stations, reserve station one 02 and reserve station two 04 and first testing platform 09 and second testing platform set up on basic horizon 0101, set up the circulation recess in five production stations and reserve station intermediate position on the basic horizon 01, set up in the circulation recess RGV dolly guide rail 0109 that runs through whole production station.

On the first station 01, as shown in fig. 1 and 3, a front end guide mechanism 0102 is arranged at the front end of the circulation groove, four side guide mechanisms 0103 are symmetrically arranged at the front end and the rear end of the circulation groove, a half gantry crane 0104 at the rear of the side guide mechanism 0103 at the front end is arranged, four first station positioning devices 0105 are symmetrically arranged at the front end and the rear end inside the circulation groove, a plurality of first station L-shaped positioning devices 0107 (six symmetrically arranged in the figure) are arranged at the middle of the circulation groove, and a first station beam positioning pin shaft 0108 is arranged on the first station L-shaped positioning devices 0107.

As shown in fig. 9, the first station L-shaped positioning device 0107 includes an L-shaped positioning bracket slide rail positioning device 010702 fixed on the ground level, a positioning seat 010703 disposed on the L-shaped positioning bracket slide rail positioning device 010702, an L-shaped positioning bracket 010701 disposed on the positioning seat 010703, and a first station beam positioning pin 0108.

As shown in fig. 13, the distance between two L-shaped positioning devices is adjusted by the L-shaped positioning bracket slide rail positioning devices 010702, the first station beam positioning pin 0108 passes through the frame beam hole, and then the frame and the pin are dropped on the L-shaped positioning bracket 010701 by using the half gantry crane.

On the second station 02, as shown in fig. 1, 4 and 12, a second station gantry elevation type positioner 0201 which is located at the front end and the rear end of the second station and is arranged on the circulation groove and a welding robot 0202 which is arranged along the second station are included. As shown in fig. 12, the second station gantry elevation type positioner 0201 comprises a positioner gantry 020108, and a positioner clamping mechanism, a positioner elevating mechanism and a positioner slewing mechanism which are arranged on the positioner gantry 020108, wherein the positioner clamping mechanism comprises two positioner clamping hydraulic guide column supports 020102 and two positioner clamping hydraulic guide columns 020101 which are arranged on the positioner clamping hydraulic guide column supports 020102; the positioner lifting mechanism comprises a positioner lifting mechanism spiral lifting rod 020103, a positioner lifting mechanism linear guide rail 020104 and a positioner lifting mechanism power mechanism 020105 which are vertically arranged on a positioner portal frame 020108, the positioner lifting mechanism power mechanism 020105 can be a motor, and an output shaft of the positioner lifting mechanism power mechanism 020105 is connected to the positioner lifting mechanism spiral lifting rod 020103; the positioner slewing mechanism comprises a positioner lifting mechanism slewing system power box 020107 connected to the bottom end of the positioner lifting mechanism spiral lifting rod 020103 and a positioner slewing mechanism slewing disc 020106 connected with an output shaft of the positioner lifting mechanism slewing system power box, and the positioner lifting mechanism drives the positioner slewing mechanism to vertically lift so as to provide a circulation space for the RGV lifting trolley. The hydraulic guide column support 020102 clamped by the positioner clamping mechanism is fixedly arranged on a positioner rotary mechanism 020106 and is driven to rotate by the positioner rotary mechanism 020106.

And a second station positioning device 0203 is further arranged on the second station 02 and in the circulation groove, and the positioning device is provided with a conical head pin shaft and is used for fixing the integral assembling platform 08.

The fourth station and the second station are arranged in the same structure.

On the third station 03, as shown in fig. 1 and 5, the third station comprises a third station semi-gantry crane 0301 crossing the third station, two third positioning devices 0302 symmetrically arranged in the circulation groove of the third station, first leg positioning devices 0303 symmetrically arranged at the edge of the circulation groove, a hydraulic station 0304 and a second leg positioning device 0305.

On the fifth station 05, as shown in fig. 1 and 6, the fifth station gantry elevation type positioner 0501 and a fifth station positioning device 0502 are included, which are located at the front end and the rear end of the fifth station and are disposed on the circulation groove, and the positioning device is provided with a conical head pin shaft for fixing the integral assembly platform 08.

As shown in fig. 7 and 8, the integral assembly platform 08 includes an integral assembly platform main body frame 0801, a front beam positioning assembly sliding mechanism 0802 arranged on the integral assembly platform main body frame 0801, a front beam front end clamping mechanism 0803, a longitudinal beam front end positioning device 0804, a cross beam fixing and positioning device 0805, a longitudinal beam hydraulic positioning and clamping mechanism 0806, a rear leg positioning device 0809, and a longitudinal beam rear end jacking mechanism 0810, which are symmetrically arranged relative to a circulation groove; a front beam rear end centering positioning mechanism 0813, a front beam front end centering positioning mechanism 0814 and a front beam front end positioning clamping mechanism 0815, which are used for placing and clamping a front beam, a longitudinal beam, a cross beam and a support leg;

the front beam front end clamping mechanism 0803, the longitudinal beam front end positioning device 0804, the front beam rear end centering positioning mechanism 0813, the front beam front end centering positioning mechanism 0814 and the front beam front end positioning clamping mechanism 0815 are arranged on the front beam positioning assembly sliding mechanism 0802, an axial moving device is arranged at the bottom of the front beam positioning assembly sliding mechanism 0802 and slides forwards and backwards along the integral assembly platform main body frame 0801 to drive the front beam front end clamping mechanism 0803, the longitudinal beam front end positioning device 0804, the front beam rear end centering positioning mechanism 0813, the front beam front end centering positioning mechanism 0814 and the front beam front end positioning clamping mechanism 0815 on the front beam positioning assembly sliding mechanism 0802 to cooperate with the longitudinal beam rear end jacking mechanism 0810 to clamp the front beam of the frame.

As shown in fig. 8, the integrated assembly platform 08 further includes bottom integrated assembly platform roller 0816, integrated assembly platform and RGV lift car positioning interface 0817, and integrated assembly platform station positioning interface 0818. The whole assembly platform 08 of automation equipment after being transported to each station by RGV lift dolly 0106, the cone head round pin axle hole of whole assembly platform station location interface 0818 is adjusted well with each station platform positioner's cone head round pin axle, inserts the cone head round pin axle under whole assembly platform 08 self weight effect, realizes the location.

For example, at the fourth station, after the integral assembly platform 08 is in place, the gantry lifting type positioner descends, the clamping device clamps the integral assembly platform 08, and the clamping device is indicated by the sensor to clamp the integral assembly platform 08 in place and stand by; an operator is connected with a hydraulic pipeline and a cable pipe/line connector/plug, predeformation quantity parameters are set, and a hydraulic jacking mechanism of the predeformation coping system is started to predeform the frame; after the pre-deformation of the frame is finished, the welding robot and the positioner perform automatic displacement welding; after welding, the positioner descends again, and the integral assembly platform 08 is placed on a fourth station platform positioning device; and after the RGV lifting trolley is in place, the integral assembling platform 08 is lifted, so that the integral assembling platform is separated from the fourth station platform positioning device and moves backwards to enter the next station.

As shown in fig. 9, the cross beam fixing and positioning device 0805 comprises a cross beam fixing L-shaped positioning bracket 080501 and a cross beam positioning device pin shaft 0808;

the integral assembling platform 08 comprises a reverse deformation coping system which is divided into a reverse deformation pressing device 0807 and a hydraulic jacking mechanism 0811 of the reverse deformation coping system and is used for pre-deforming frames of a second station and a fourth station before welding.

As shown in fig. 10, the integral assembly platform 08 further includes a set of counter-deformation capping system pressing device 0807, and the counter-deformation capping system pressing device 0807 includes a counter-deformation capping system pressing cross beam 080701, a counter-deformation capping system pressing swing bolt adjusting and connecting device 080702, and a counter-deformation capping system supporting column 080703.

The integral assembly platform 08 further comprises two sets of anti-deformation jacking system hydraulic jacking mechanisms 0811 which are arranged at two ends of the anti-deformation jacking system pressing device 0807, and each anti-deformation jacking system hydraulic jacking mechanism 0811 comprises an anti-deformation jacking system hydraulic jacking cross beam 081101, an anti-deformation jacking system hydraulic jacking oil cylinder 081102 and an anti-deformation jacking system hydraulic jacking guide column 081103.

When the device is used, a frame is placed on the cross beam fixing L-shaped positioning support 080501, and the middle part of the frame is pre-compressed through a nut 080702 of an anti-deformation jacking system compression swing bolt adjusting and connecting device. During reverse deformation, the reverse deformation roof pressing system pressing beam 080701 and the reverse deformation roof pressing system pressing beam 081101 move upwards along the hydraulic jacking guide post 081103 at the rear end of the reverse deformation roof pressing system under the jacking action of the reverse deformation roof pressing system hydraulic jacking oil cylinder 081102 to implement reverse deformation on the frame.

The integral assembly platform 08 is further provided with a positioner clamping shaft sleeve 0812 which is matched with a positioner clamping hydraulic guide column 020101 and used for fixing the integral assembly platform 08 on a second station gantry lifting type positioner 0201.

As shown in fig. 11, the RGV lift car 0106 comprises an RGV lift car support platform 010604, an RGV lift car travel mechanism 010601 disposed on the RGV lift car support platform 010604, an RGV lift car tapered guide positioning device 010602 and an RGV lift car hydraulic jacking device 010603 which are matched with the integral assembly platform and the RGV lift car positioning interface 0817.

Adopt the utility model provides an when the automated production equipment carries out large-tonnage frame production, as shown in fig. 2, can adopt following step to go on:

s1: positioning a longitudinal beam, a cross beam, a swing arm cross brace and a reinforcing cross brace in a welding tire, and reinforcing a welding part lining plate;

the bolt is connected with the cross beam and the swing arm bracket.

S2: and welding a swing arm support, a lining plate and a reinforcing plate, and welding a vertical lower fulcrum connecting plate and a supporting cross beam.

And the frame is reversely deformed twice.

And S3, positioning the front beam and the front/rear legs.

S4: and pre-deforming and reinforcing and welding the front beam and the front/rear support legs before welding.

S5: and (5) manual repair welding.

S6: and (6) cleaning and checking.

Specifically, the assembly of the frame main body (a first station) realizes the bolt connection/spot welding positioning and partial repair welding of the longitudinal beam and each cross beam; the frame main body is welded (at a second station) to realize frame overturning/reversible deformation and automatic welding of the swing arm bracket and the inner lining plate of the frame; front/rear leg front beam assembly (third station) to realize front/rear leg front beam spot welding positioning and partial repair welding; the front beam welding (fourth station) of the front/rear support legs realizes the automatic welding of the front beam/support legs of the frame; and repair welding (a fifth station) is used for positions where the manual welding robot cannot weld.

And assembling the frame main body (a first station) for realizing the bolt connection/spot welding positioning and partial repair welding of the longitudinal beam and each cross beam. The frame main body is assembled and positioned through the longitudinal beam clamping fixture and the main cross beam positioning device. The longitudinal beam is respectively positioned and clamped on the longitudinal beam mould by taking the upper plane, the ventral surface and the front end surface as references, and the cross beam is positioned and clamped on the main cross beam L-shaped positioning device by taking the gas spring lug hole and the hole end surface as references.

And the frame main body is welded (at a second station) and used for realizing frame overturning/reversible deformation and automatic welding of the swing arm bracket and the inner lining plate of the frame. The frame integral tool (integral assembly platform) is used as a frame carrier, and after pre-deformation before welding is carried out through a reverse deformation jacking system, automatic welding of a frame main body is realized through a gantry lifting type frame positioner and a welding robot system. The frame positioner adopts a gantry lifting structure, so that the frame and the whole frame tool can be conveniently circulated and pass through, and the frame positioner and a suspension type structure welding robot system form an automatic welding workstation to realize automatic welding. And the frame positioner and the frame integral tool are clamped, overturned and lifted by adopting a locking mechanism. The anti-deformation coping system is arranged on the whole frame tooling and consists of a pressing device, a hydraulic jacking mechanism and a corresponding hydraulic/electric control system. Two sides of a pressing beam of the pressing device are in the form of swing bolts; the hydraulic jacking mechanism is driven by hydraulic pressure, a laser ranging system is arranged in the system to quantize the jacking stroke, and the functions of setting the anti-deformation amount and automatically adjusting are realized.

And (3) assembling the front beam of the front/rear support legs (a third station) for realizing positioning assembly and partial repair welding of the front beam of the front/rear support legs. According to the station, by using the principle of two points and one line, three points as plane reference and one point auxiliary support, the frame main body is placed on a positioning device through a pin shaft by taking a cross beam hydro-pneumatic spring lug hole as reference, and is automatically leveled and centered and tightly propped, so that the influence of frame position change caused by frame deformation, overturning and creeping and welding deformation on subsequent assembly precision of the second station is eliminated. The front beam, the front leg and the rear leg are positioned by using the front beam, the front leg and the rear leg as references through positioning surfaces and clamping devices of respective tool clamping tools (comprising 0802-front beam positioning assembly sliding mechanism, 0803-front beam front end clamping mechanism, 0804-longitudinal beam front end positioning device and 0813-front beam rear end centering positioning mechanism, 0814-front beam front end centering positioning mechanism, 0815-front beam front end positioning clamping mechanism, 0303-first leg positioning device, 0305-second leg positioning device, 0810-longitudinal beam rear end abutting mechanism and 0809-rear leg positioning device), wherein the positioning tools are all arranged on the whole tool bearing device main body frame, and the relative positions are determined by using the positioning devices as references; the front beam positioning tool takes the front end and the upper plane of the front beam and the outer end faces of the left/right upper wing plates as references, positions and clamps the front beam through a hydraulic/screw mechanism, and is matched with manual adjustment of a butt joint gap between the front beam and the frame main body; the front supporting leg positioning tool positions the front supporting leg through hydraulic/manual matching by taking the lower end face of the front supporting leg, the water falling hole and the front and rear side cushion blocks as references; the rear supporting leg positioning tool positions the rear supporting leg through hydraulic/manual matching by taking a rear supporting leg rotary supporting leg hole, a supporting leg end face and a lower end face as references.

And welding the front beam of the front/rear support legs (fourth station) for realizing frame overturning/reversible deformation and automatic welding of the front beam/support legs of the frame. The frame integral tool (integral assembly platform) is used as a frame carrier, and the gantry lifting type frame positioner and the welding robot system are used for realizing the automatic welding of the front beam and the front/rear supporting legs of the frame. The frame positioner adopts a gantry lifting structure, so that the frame and the whole frame tool can be conveniently circulated and pass through, and the frame positioner and a welding robot system with a suspension type structure form an automatic welding workstation to realize automatic welding. And the frame positioner and the frame integral tool are clamped, overturned and lifted by adopting a locking mechanism.

Repair welding (fifth station) for when realizing the unable welded position of manual welding robot, welding personnel can carry out all-round welding with the frame upset to needs position according to actual demand. The frame is turned over by the gantry lifting type frame positioner by taking a frame integral tool (an integral assembling platform) as a frame carrier. The frame positioner adopts a gantry lifting structure, so that the frame and the whole frame tool can be conveniently circulated and passed through. And the frame positioner and the frame integral tool are clamped, overturned and lifted by adopting a locking mechanism.

The whole frock of frame (be whole equipment platform promptly, contain anti-deformation coping system). The whole frame tooling is placed at each operation station and used as a frame operation platform to carry out cyclic transmission among the stations. The ground positioning and clamping mechanism is arranged on the first station and the third station in two parts and is not transmitted along with the whole tool of the frame, the weight of the whole tool of the frame is reduced by the arrangement mode, and the complex redundant structure of the tool is avoided. The anti-deformation coping system is arranged on the whole frame tooling, is transmitted along with the whole frame tooling and is used for pre-deformation of the frame at the second station before welding, the control system can set the anti-deformation amount, and the anti-deformation amount is controlled through the sensor to realize automatic anti-deformation.

The 2 sets of semi-portal cranes are respectively arranged at the first station and the third station and used for loading the assembly stations, and the guide rails of the semi-portal cranes are respectively communicated with the two adjacent reserved stations of the first station and the third station.

The gantry type lifting positioner 1 and the welding robot system 2 are placed on a second station and used for automatic turning and deflection welding of the frame main body; and the 1 set of gantry type lifting positioner and the 1 set of welding robot system are placed at a fourth station and used for automatic welding of front/rear supporting leg front beams in a turning and displacement mode.

And 1 set of detection platform is placed behind the fifth station, and the other 1 set of detection platform is placed opposite to the fifth station and used for detecting the frame.

And a conical pin shaft is arranged on the positioning device of each station and is used for being matched with the station positioning interface of the integral assembling platform 08 of the integral assembling platform so as to fix the integral assembling platform 08.

And a sensor is also arranged on each station to prompt the whole assembly platform 08 to be in place, and a control system receives in-place signals sent by the sensors and controls the positioning device, the clamping device and the welding robot to act.

Each station is also provided with a hydraulic quick-plug connector and a pressure maintaining device, so that the power source can be quickly connected after the integral assembling platform 08 is in place.

The logistics system comprises 1 set of RGV lifting trolley transmission system (comprising a track), 1 set of return guide rail and safety protection facilities, wherein the 1 set of RGV lifting trolley transmission system (comprising the track) penetrates through each station and is used for bearing the whole frame tool and transmitting the frame among the stations; and 1 set of return guide rails are arranged on a channel beside the stations and communicated with the first station to the fifth station, and the integral frame tooling is used for returning to the first station from the fifth station under the traction of a tractor. The 1 set of master control system is used for realizing production management and control communication among stations of the line body.

Compared with the prior art, the utility model provides a following neotype structure:

(1) the production equipment comprises an integral assembling platform for bearing a frame to be processed, a gantry lifting type position changing machine, a reverse deformation coping system, a welding robot and an RGV lifting trolley transmission system, and can realize the positioning assembly welding forming, station flow transfer conveying, frame displacement overturning, frame reverse deformation and robot welding automation functions of a large-tonnage frame;

(2) the gantry lifting type positioner, the anti-deformation coping system and the L-shaped positioning device are provided with new structures.

Other related guiding devices (such as a front end guiding mechanism 0102 and a side guiding mechanism 0103), positioning devices (such as a first station positioning device 0105, a second station positioning device 0203, a third station positioning device 0302, a third station positioning device 0303, a fifth station positioning device 0502, a longitudinal beam front end positioning device 0804, a cross beam fixing and positioning device 0805, a front beam rear end centering positioning mechanism 0813 and a front beam front end centering positioning mechanism 0814), clamping mechanisms (such as a front beam front end clamping mechanism 0803 and a front beam front end positioning and clamping mechanism 0815 on an integral assembly platform) and the like all adopt existing mature frame processing devices or equipment, and are not adjusted in structure.

The utility model provides an automatic equipment innovation point lies in having adopted an integral frock that has L type location structure, anti-deformation capping system, through using hydraulic pressure quick connector and pressurizer, when making integral frock transmit between each assembly station, automatic welding station far away apart from each, can put through the power supply fast, realize the quick automatic positioning clamp of large-tonnage frame main part in proper order, the automatic anti-deformation of adjustable value before the welding, frame anti-deformation shifts automatic welding, eliminate after the frame automatic welding and warp the function that influences automatic positioning once more and reassemble; and the positioner adopts a gantry lifting structure, so that the integral tool can reach any station through a gantry frame of the positioner under the action of an RGV lifting trolley transmission system, and the integral automatic circulation function between stations of a large-size large-tonnage frame is realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The automatic production equipment for the large-tonnage welding frame is characterized by comprising five production stations, wherein the five production stations comprise a first station serving as a frame main body assembling station, a second station serving as a frame main body welding station, a third station serving as a front/rear support leg front beam assembling station, a fourth station serving as a front/rear support leg front beam welding station and a fifth station serving as a repair welding station;

the automatic welding robot comprises an automatic integral assembling platform, a gantry lifting positioner, a reversible deformation jacking system arranged on the automatic integral assembling platform, two automatic welding robots and an RGV lifting trolley transmission system, wherein the two automatic welding robots and the RGV lifting trolley transmission system are positioned on a second station and a fourth station; the RGV lifting trolley transmission system comprises an RGV lifting trolley and an RGV trolley guide rail penetrating through the whole production station;

the gantry lifting type position changing machine is arranged on the second station, the fourth station and the fifth station.

2. The automatic production equipment for the large-tonnage welding frame as claimed in claim 1, wherein a reserved station I is arranged between the first station and the second station, and a reserved station II is arranged between the second station and the third station;

the device also comprises a first detection platform and a second detection platform which are arranged behind the fifth station and opposite to the fifth station.

3. The automatic production equipment for the large-tonnage welded frame as recited in claim 1, wherein the counter-deformation coping system comprises one set of counter-deformation coping system pressing device located at the middle position of the automatic integral assembly platform and two sets of counter-deformation coping system hydraulic jacking mechanisms located at two ends of the automatic integral assembly platform;

the anti-deformation coping system pressing device comprises an anti-deformation coping system pressing beam, an anti-deformation coping system pressing movable joint bolt adjusting and connecting device and an anti-deformation coping system supporting column;

the hydraulic jacking mechanism of the anti-deformation coping system comprises an anti-deformation coping system hydraulic jacking cross beam, an anti-deformation coping system hydraulic jacking oil cylinder and an anti-deformation coping system hydraulic jacking guide column.

4. The automatic production equipment of a large-tonnage welding carriage as recited in claim 3, wherein five production stations, a reserved station I and a reserved station II, and a first detection platform and a second detection platform are arranged on a foundation ground plane, a circulation groove is arranged on the foundation ground plane at the middle positions of the five production stations and the reserved station, and an RGV trolley guide rail penetrating through the whole production station is arranged in the circulation groove.

5. The automated production equipment for large-tonnage welding carriages as claimed in claim 4, wherein the gantry elevation type positioner comprises a positioner gantry frame and a positioner clamping mechanism, a positioner elevating mechanism and a positioner slewing mechanism which are arranged on the positioner gantry frame, the positioner clamping mechanism comprises two parts of a positioner clamping hydraulic guide column support and two parts of a positioner clamping hydraulic guide column which are arranged on the positioner clamping hydraulic guide column support; the positioner lifting mechanism comprises a positioner lifting mechanism spiral lifting rod vertically arranged on a positioner portal frame, a positioner lifting mechanism linear guide rail and a positioner lifting mechanism power mechanism, and an output shaft of the positioner lifting mechanism power mechanism is connected to the positioner lifting mechanism spiral lifting rod; the positioner slewing mechanism comprises a positioner slewing mechanism slewing disc connected to a positioner lifting mechanism slewing system power box connected to the bottom end of a spiral lifting rod of the positioner lifting mechanism and an output shaft of the positioner lifting mechanism slewing system power box, and the positioner lifting mechanism drives the positioner slewing mechanism to vertically lift.

6. The automated production equipment for large-tonnage welded carriages as claimed in claim 5, wherein the integral assembly platform comprises an integral assembly platform main body frame, and a front beam positioning assembly sliding mechanism, a clamping mechanism and a positioning device which are arranged on the integral assembly platform main body frame and used for placing and clamping a front beam, a longitudinal beam, a cross beam and a supporting leg; the device also comprises an integral assembly platform rolling wheel at the bottom, an integral assembly platform, an RGV lifting trolley positioning interface and an integral assembly platform station positioning interface;

the integral assembling platform is further provided with a positioner clamping shaft sleeve which is matched with the positioner clamping hydraulic guide column and used for fixing the integral assembling platform on the gantry lifting type positioner.

7. The automatic production equipment for the large-tonnage welding frame as recited in claim 6, wherein each station is provided with a positioning device, and the positioning device is provided with a conical pin shaft which is matched with a station positioning interface of an integral assembly platform of the integral assembly platform;

each station is also provided with a sensor;

each station is also provided with a hydraulic quick-change connector and a pressure maintaining device.

8. The automated production equipment for large-tonnage welding carriages of claim 7, wherein the RGV lifting carriage comprises an RGV lifting carriage support platform, an RGV lifting carriage walking mechanism arranged on the RGV lifting carriage support platform, an RGV lifting carriage conical guide positioning device and an RGV lifting carriage hydraulic jacking device which are matched with the integral assembly platform and the RGV lifting carriage positioning interface.

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