CN108788592B - Headstock assembly line welding operation device - Google Patents
Headstock assembly line welding operation device Download PDFInfo
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- CN108788592B CN108788592B CN201810540783.0A CN201810540783A CN108788592B CN 108788592 B CN108788592 B CN 108788592B CN 201810540783 A CN201810540783 A CN 201810540783A CN 108788592 B CN108788592 B CN 108788592B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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Abstract
The invention discloses a welding operation device for a general assembly line of a vehicle head frame, and aims to provide a welding operation device for a general assembly line of a vehicle head frame, which can position and fix a rear rest rail, a pedal upright post and an A-post bracket, ensure that the welding of a vehicle door frame is smoothly carried out, and can position a vehicle door frame, a front rail upper cross beam and a front rail lower cross beam, and ensure that the welding of the vehicle head frame is smoothly carried out. The device comprises a door frame welding station and a headstock frame assembly station. The door frame welding station comprises two door frame welding devices. Door frame welds dress device includes: welding a frame on a car door frame; a first pedal upright positioning tool; a first rear backrest positioning tool; the A column support positioning tool is arranged on the support; locomotive frame final assembly station includes: assembling a rack; the left door frame positioning tool and the right door frame positioning tool are arranged on the general assembly rack and are used for positioning a door frame; a front-rail upper beam limiting tool; and a front gear lower beam limiting tool.
Description
Technical Field
The invention relates to a welding tool for a headstock, in particular to a welding operation device for a headstock general assembly line.
Background
The headstock frame of the current transport vehicle is generally formed by welding and assembling a plurality of large parts. As shown in fig. 1, the head frame of one type of small transport vehicle is assembled by welding a left door frame 1a, a right door frame, a front rail upper cross beam 1b and a front rail lower cross beam 1c, which connect the left door frame and the right door frame.
As shown in fig. 2, the door frame is assembled by welding three parts of a back rest rail 1a.1, a pedal pillar 1a.3 and an a-pillar bracket 1a.2 (the back rest rail is in an inverted L shape).
The actual welding assembly process of the headstock of the small transport vehicle generally comprises the following two welding assembly stations, wherein the former welding assembly station comprises: a door frame welding station, namely welding and assembling three parts of a rear stop, a pedal upright post and an A-pillar bracket into a door frame;
the subsequent welding assembly station comprises: the headstock frame assembly station is a headstock frame formed by welding a left and a right doorframe, a front rail upper cross beam and a front rail lower cross beam which are connected with the left and the right doorframes.
In the door frame welds dress station, lean on shelves, footboard stand and A post support before the welding, need fix a position, fix leaning on shelves, footboard stand and A post support after, therefore need design one kind and can fix a position, fixed device to leaning on shelves and footboard stand after, guarantee the welding quality of door frame.
In the headstock assembly station, the left and right door frames, and the front rail upper cross beam and the front rail lower cross beam which are connected with the left and right door frames need to be positioned and fixed before welding, so that a device capable of positioning and fixing the door frames, the front rail upper cross beam and the front rail lower cross beam needs to be designed, and the welding quality of the headstock is ensured.
On the other hand, as shown in fig. 2, a part of the door frame is formed by welding a back stop and a pedal pillar, wherein the back stop is provided with a door lock mounting plate 1a.1.1 for mounting a door lock, and the front pillar 1a.3.1 of the pedal pillar is provided with a door hinge mounting plate 1a.3.2 for mounting a door hinge, and the accuracy of the relative position between the door hinge mounting plate and the door lock mounting plate is high, otherwise, after the door is mounted on the door hinge mounting plate through the door hinge, the problem that the door lock portion on the door cannot be smoothly matched with the door lock portion mounted on the door lock mounting plate occurs.
In the actual welding and assembling process of the vehicle head frame, after the backrest rail and the pedal upright post are welded into a whole, due to welding deformation or other reasons, the relative position of the vehicle door hinge mounting plate and the vehicle door lock mounting plate is not in accordance with the design requirement (the distance between the vehicle door hinge mounting plate and the vehicle door lock mounting plate is smaller usually), and the problem that after the vehicle door is mounted on the vehicle door hinge mounting plate through the vehicle door hinge, the door lock part on the vehicle door cannot be smoothly matched with the vehicle door lock part mounted on the vehicle door lock mounting plate is caused.
Disclosure of Invention
The invention aims to provide a welding operation device for a locomotive frame assembly line, which can position and fix a rear rest rail, a pedal upright post and an A-pillar bracket, ensure that a door frame is welded smoothly, and can position a door frame, a front rail upper cross beam and a front rail lower cross beam, and ensure that a locomotive frame is welded smoothly.
The second purpose of the invention is to provide the welding operation device of the locomotive frame assembly line, which can limit the relative position of the door hinge mounting plate and the door lock mounting plate, effectively improve the relative position precision of the door hinge mounting plate and the door lock mounting plate after the rear rest rail and the pedal upright post are welded into a whole.
The technical scheme of the invention is as follows:
the utility model provides a locomotive frame assembly line welding operation device, includes: a door frame welding station and a head frame assembly station, wherein the door frame welding station comprises two door frame welding devices,
door frame welds dress device includes: the door frame welding rack comprises a first base, a rear leaning stop positioning frame arranged on the first base and an A column support mounting frame arranged on the upper part of the rear leaning stop positioning frame; the first pedal upright positioning tool is arranged on the first base and used for positioning the pedal upright; the first rear backrest positioning tool is arranged on the rear backrest positioning frame and used for positioning the rear backrest; the A column support positioning tool is arranged on the A column support mounting frame and used for fixing the A column support;
locomotive frame final assembly station includes: the assembly rack comprises a second base, a rear leaning stop mounting rack arranged on the second base and a left and a right upper supporting longitudinal beams which are arranged on the upper part of the rear leaning stop mounting rack and are parallel to each other; the left door frame positioning tool and the right door frame positioning tool are arranged on the general assembly rack and are used for positioning a door frame; the front-gear upper beam limiting tool is used for limiting the front-gear upper beam; and the front gear lower beam limiting tool is used for limiting the front gear lower beam.
Preferably, the first pedal upright positioning tool comprises a first supporting column and a second supporting column which are arranged on the first base and used for supporting the pedal upright, two vertical pedal positioning pins which are arranged on the first base and used for positioning the pedal upright, and a first pedal upright quick clamp which is arranged on the first base and used for pressing the pedal upright on the second supporting column; the first rear backrest positioning tool comprises a plurality of first rear backrest positioning blocks, first rear backrest positioning grooves and first pressing plates, wherein the first rear backrest positioning blocks are sequentially arranged on a rear backrest positioning frame from top to bottom; a post support location frock is used for a post support limiting plate and a plurality of setting of spacing A post support on A post support mounting bracket including setting up and is used for compressing tightly the first A post support rapid clamp on A post support limiting plate with A post support on A post support mounting bracket.
Preferably, the A-column support positioning tool further comprises an A-column support lower limiting block arranged on the A-column support mounting frame and used for limiting the A-column support.
Preferably, the first reclining stop positioning tool further comprises a lower reclining stop limiting block arranged on the upper surface of the first base.
Preferably, first support column upper end is equipped with the side spacing piece that is used for spacing footboard stand, and first support column upper end is equipped with the vertical support that is used for supporting the footboard stand.
Preferably, the door frame positioning tool comprises a second rear stop positioning tool, a second pedal stand column positioning tool and an A-column support crimping tool, the second rear stop positioning tool comprises a plurality of second rear stop positioning blocks sequentially arranged on the rear stop mounting frame from top to bottom, second rear stop positioning grooves arranged on the second rear stop positioning blocks and second pressing plates which correspond to the second rear stop positioning blocks one by one and are used for sealing and covering notches of the second rear stop positioning grooves, and the second pressing plates are connected with the corresponding second rear stop positioning blocks through bolts; the second pedal upright positioning tool comprises a supporting block arranged on the second base and used for supporting the pedal upright, two pedal positioning upright rods arranged on the second base and used for positioning the pedal upright, and a second pedal upright quick clamp arranged on the second base and used for pressing the pedal upright onto the supporting block; a post support crimping frock and last support longeron one-to-one, A post support crimping frock include that a plurality of sets up the second A post support rapid clamp who is used for compressing tightly A post support on last support longeron.
Preferably, the front-rail upper beam limiting tool comprises a front-rail upper beam support arranged on the second base, two front-rail upper beam positioning blocks arranged on the upper portion of the front-rail upper beam support and used for limiting the front-rail upper beam, and front-rail upper beam positioning grooves arranged on the front-rail upper beam positioning blocks; the front lower beam limiting tool comprises a front lower beam support arranged on the second base, two front lower beam positioning blocks arranged on the upper portion of the front lower beam support and used for limiting the front lower beam, and a front lower beam positioning groove arranged on the front lower beam positioning block.
Preferably, the door frame welding device further comprises a rotary door frame limiting device, the rotary door frame limiting device is used for limiting a door lock mounting plate used for mounting a door lock on a rear stop and a door hinge mounting plate used for mounting a door hinge on a pedal upright post, the rotary door frame limiting device comprises a vertical rotating shaft arranged on a first base, a door frame rotating limiting frame rotatably arranged on the vertical rotating shaft, a door lock limiting plate arranged on the door frame rotating limiting frame and used for limiting the door lock mounting plate, and a hinge limiting plate arranged on the door frame rotating limiting frame and used for limiting the door hinge mounting plate.
The rotary type door frame limiting device with the structure can limit the relative position of the door hinge mounting plate and the door lock mounting plate, and effectively improves the relative position precision of the door hinge mounting plate and the door lock mounting plate after the rear leaning block and the pedal upright post are welded into a whole.
Preferably, the rotary type door frame limiting device also comprises a walking device, a triggering device and clearance eliminating and jacking devices which are in one-to-one correspondence with the hinge limiting plates, the walking device comprises a vertical cylinder body arranged on a vehicle door frame rotation limiting frame, a ventilation through hole arranged at the upper end of the vertical cylinder body, a lower through hole arranged at the lower end of the vertical cylinder body, an upper piston and a lower piston arranged in the vertical cylinder body, a pre-tightening compression spring arranged in the vertical cylinder body and positioned above the upper piston, a vertical supporting rod connected with the lower end of the lower piston, a roller arranged at the lower end of the vertical supporting rod, a first interface and a second interface arranged on the outer side surface of the vertical cylinder body, an air-supplementing one-way valve arranged on the second interface and a roller boss arranged on the upper surface of the first base and matched with the roller, wherein the roller boss comprises a roller supporting surface parallel to the upper surface of the first base and a roller guide inclined surface connecting the roller supporting surface with the upper surface of the first base; the trigger device comprises a trigger cylinder body arranged on a door lock limiting plate, two trigger pistons arranged in the trigger cylinder body, a piston connecting rod for connecting the two trigger pistons, a trigger rod connected with the trigger piston, a trigger rod through hole arranged at the first end of the trigger cylinder body, a trigger piston reset spring arranged in the trigger cylinder body and positioned between the second end of the trigger cylinder body and the trigger piston, and a third interface and a fourth interface arranged on the outer side surface of the trigger cylinder body, wherein a trigger rod through hole opposite to the trigger rod through hole is formed in the door lock limiting plate, the trigger rod sequentially penetrates through the trigger rod through hole and the trigger rod through hole, and the first interface and the third interface are connected through a first connecting pipe; the anti-backlash jacking device comprises a jacking cylinder body arranged on a hinge limiting plate, a jacking piston arranged in the jacking cylinder body, a jacking rod via hole arranged at the first end of the jacking cylinder body, a jacking rod connected with the jacking piston, a jacking plate arranged at the end part of the jacking rod, and a fifth interface and a sixth interface arranged on the jacking cylinder body, wherein the jacking rod via hole is formed in the hinge limiting plate, the jacking rod sequentially penetrates through the jacking rod via hole and the jacking rod via hole, the jacking plate and the jacking cylinder body are positioned on two opposite sides of the hinge limiting plate, the fifth interface and the sixth interface are positioned on the same side of the jacking piston, the fourth interface and the fifth interface are connected through a second connecting pipe, an air inlet one-way valve is further arranged between the fifth interface and the second connecting pipe, and a switch valve is arranged on the sixth interface.
The scheme can further improve the precision of limiting the relative position of the door hinge mounting plate and the door lock mounting plate, and further improve the precision of the relative position of the door hinge mounting plate and the door lock mounting plate after the rear leaning block and the pedal upright post are welded into a whole.
The invention has the beneficial effects that:
the first of all, can fix a position and fix backing shelves, footboard stand and A post support, guarantee that the door frame welding goes on smoothly, can also fix a position door frame, preceding shelves entablature and preceding shelves bottom end rail, guarantee that the welding of locomotive frame goes on smoothly.
And secondly, the relative position of the door hinge mounting plate and the door lock mounting plate can be limited, and the relative position precision of the door hinge mounting plate and the door lock mounting plate is effectively improved after the rear backrest and the pedal upright post are welded into a whole.
Drawings
Fig. 1 is a schematic structural diagram of a headstock before welding in the prior art.
Fig. 2 is a schematic view of a prior art door frame before welding.
Fig. 3 is a schematic structural view of a headstock assembly line welding operation device according to embodiment 1 of the present invention.
Fig. 4 is a plan view of a door frame welding apparatus according to embodiment 1 of the present invention.
Fig. 5 is a side view of a door frame welding apparatus according to embodiment 1 of the present invention.
Fig. 6 is a partial structural view of a rotary door frame check device according to embodiment 1 of the present invention.
Fig. 7 is a partial structural schematic view of a first pedal pillar positioning tool according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of a headstock assembly station in embodiment 1 of the present invention.
Fig. 9 is a schematic structural view of a headstock assembly line welding operation device according to embodiment 2 of the present invention.
Fig. 10 is a partial enlarged view at a in fig. 9.
Fig. 11 is a top view of fig. 9.
Fig. 12 is a partially enlarged view of B in fig. 11.
Fig. 13 is a partial enlarged view of C in fig. 11.
In the figure:
a front-rail upper beam 1 b;
a front lower beam 1 c;
door frame welds dress station 2a, door frame welds dress device 2 a.1:
the frame welding machine comprises a frame 1, a first base 1.1, a rear leaning stop positioning frame 1.2 and an A-column support mounting frame 1.3;
the first rear backrest gear positioning tool 2, the first rear backrest gear positioning block 2.01, the pressing plate 2.02, the first rear backrest gear positioning groove 2.03 and the rear backrest gear lower limiting block 2.1;
the device comprises a first pedal upright positioning tool 3, a first support column 3.1, a second support column 3.2, a vertical pedal positioning pin 3.3, a first pedal upright rapid clamp 3.4, a side limiting block 3.5 and a vertical strut 3.6;
rotation type car door frame stop device 4: the vertical rotating shaft 4.1, the door frame rotation limiting frame 4.2, the door lock limiting plate 4.3 and the hinge limiting plate 4.4;
the device comprises a walking device 5, a roller boss 5.0, a roller guide inclined plane 5.01, a roller supporting surface 5.02, a vertical cylinder 5.1, an upper piston 5.2, a lower piston 5.3, a pre-tightening compression spring 5.4, an upper limit stop 5.5, a lower limit stop 5.6, a second interface 5.7, an air supplementing one-way valve 5.8, a first interface 5.9, a vertical supporting rod 5.10 and a roller 5.11;
the device comprises an A-column support positioning tool 6, an A-column support limiting plate 6.0, a first A-column support quick clamp 6.1 and an A-column support lower limiting block 6.2;
the trigger device 7, the trigger cylinder 7.1, the trigger piston 7.2, the trigger rod 7.3, the trigger piston return spring 7.4, the third interface 7.5 and the fourth interface 7.6;
a clearance-eliminating jacking device 8, a jacking cylinder body 8.1, a jacking piston 8.2, a jacking piston limit block 8.3,
the device comprises a mandril 8.4, a jacking piston return spring 8.5, a jacking plate 8.6, a fifth connector 8.7, a sixth connector 8.8, a switch valve 8.9 and an air inlet one-way valve 8.10;
headstock final assembly station 2 b:
the assembly machine frame 9, the second base 9.1, the rear leaning block mounting frame 9.2 and the upper supporting longitudinal beam 9.3;
the door frame positioning tool 2b1, the second rear stop positioning tool 10, the second rear stop positioning block 10.1, the second pressure plate 10.2 and the rear stop lower positioning block 10.3;
a second pedal upright post positioning tool 11, a supporting block 11.1, a pedal positioning upright rod 11.2 and a second pedal upright post rapid clamp 11.3;
the A column support crimping tool 12 and the second A column support rapid clamp 12.1 are arranged in parallel;
a front-gear upper beam limiting tool 13, a front-gear upper beam bracket 13.1, a front-gear upper beam positioning block 13.2 and a front-gear upper beam positioning groove 13.3;
the front lower beam limiting tool comprises a front lower beam limiting tool 14, a front lower beam support 14.1, a front lower beam positioning block 14.2 and a front lower beam positioning groove 14.3.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
example 1: as shown in fig. 3, a welding operation device for assembly line of headstock includes: a door frame welding station 2a and a head frame assembly station 2 b. The door frame welding station comprises two door frame welding devices 2 a.1.
As shown in fig. 3, 4 and 5, the door frame welding device comprises a door frame welding rack 1, a first rear stop positioning tool 2, a first pedal upright positioning tool 3, an a-pillar support positioning tool 6 and a rotary door frame limiting device 4.
The welding frame of the car door frame comprises a first base 1.1, a rear leaning position locating frame 1.2 arranged on the first base and an A column support mounting frame 1.3 arranged on the upper portion of the rear leaning position locating frame. The back rest positioning frame is a vertical support. The A-column support mounting frame comprises two parallel horizontal support rods.
As shown in fig. 5 and 6, the first reclining positioning tool is arranged on the reclining positioning frame for positioning the reclining. The first rear backrest positioning tool comprises a rear backrest lower limiting block 2.1 arranged on the upper surface of the first base, a plurality of first rear backrest positioning blocks 2.01 sequentially arranged on the rear backrest positioning frame from top to bottom, a first rear backrest positioning groove 2.03 arranged on the first rear backrest positioning block, and pressing plates 2.02 which correspond to the first rear backrest positioning blocks one by one and are used for sealing and shielding notches of the first rear backrest positioning grooves. The first rear leaning stop positioning block is connected to the rear leaning stop positioning frame through a bolt. The pressing plate is connected with the corresponding first rear stop positioning block through a bolt.
As shown in fig. 5, 6 and 7, the first pedal pillar positioning tool is arranged on the first base and used for positioning the pedal pillar. First footboard stand location frock is used for two vertical footboard locating pins 3.3 of location footboard stand and sets up and be used for compressing tightly the first footboard stand rapid fixturing 3.4 on the second support column with the footboard stand including setting up first support column 3.1 and the second support column 3.2 that are used for supporting the footboard stand on first base, setting on first base. The first pedal upright post quick clamp is the prior art.
The first supporting column is positioned between the second supporting column and the rear leaning stop positioning frame. The first support column is vertically arranged. The second support column is located between the two vertical pedal positioning pins. The second support column is arranged vertically. The upper end of the first supporting column is provided with a side limiting block 3.5 used for limiting the pedal upright column. The upper end of the first supporting column is provided with a vertical pillar 3.6 for supporting the pedal upright.
As shown in fig. 4 and 5, the a-pillar support positioning tool is arranged on the a-pillar support mounting frame and used for fixing the a-pillar support. A post support location frock is used for a first A post support rapid-curing cuter 6.1 on A post support limiting plate and setting up spacing piece 6.2 under A post support that is used for spacing A post support on A post support mounting bracket including setting up A post support limiting plate 6.0, a plurality of setting that is used for A post support to compress tightly A post support on A post support limiting plate on A post support mounting bracket.
As shown in fig. 5 and 6, the rotary door frame limiting device is used for limiting a door lock mounting plate on the rear bumper for mounting a door lock and a door hinge mounting plate on the pedal pillar for mounting a door hinge.
The rotary type car door frame limiting device comprises a vertical rotating shaft 4.1 arranged on the first base, a car door frame rotating limiting frame 4.2 rotatably arranged on the vertical rotating shaft, a door lock limiting plate 4.3 arranged on the car door frame rotating limiting frame and used for limiting a car door lock mounting plate, and a hinge limiting plate 4.4 arranged on the car door frame rotating limiting frame and used for limiting a car door hinge mounting plate. The hinge limiting plates are two in number and are distributed up and down. The door lock limiting plate is close to the vertical rotating shaft, and the hinge limiting plate is far away from the vertical rotating shaft.
As shown in fig. 3 and 8, the headstock final assembly station includes a final assembly frame 9, two left and right doorframe positioning tools 2b1, a front rail upper beam limiting tool 13, and a front rail lower beam limiting tool 14.
The assembly rack comprises a second base 9.1, a rear leaning stop mounting rack 9.2 arranged on the second base and a left and a right upper supporting longitudinal beams 9.3 which are arranged on the upper part of the rear leaning stop mounting rack and are parallel to each other. The upper support longitudinal beam is horizontally arranged. The rear backrest stop mounting rack is a vertical support.
The left and right door frame positioning tools are distributed on the left and right sides of the final assembly rack. The car door frame positioning tool is arranged on the assembly rack and used for positioning a car door frame. The door frame positioning tool comprises a second rear bumper positioning tool 10, a second pedal upright positioning tool 11 and an A-pillar support crimping tool 12.
The second rear backrest positioning tool comprises a rear backrest lower positioning block 10.3 arranged on the upper surface of the second base, a plurality of second rear backrest positioning blocks 10.1 sequentially arranged on the rear backrest mounting frame from top to bottom, a second rear backrest positioning groove arranged on the second rear backrest positioning block and a second pressing plate 10.2 which is in one-to-one correspondence with the second rear backrest positioning blocks and is used for sealing and shielding notches of the second rear backrest positioning groove, and the second pressing plate is connected with the corresponding second rear backrest positioning block through bolts.
The second pedal stand column positioning tool comprises a supporting block 11.1 arranged on the second base and used for supporting the pedal stand column, two pedal positioning vertical rods 11.2 arranged on the second base and used for positioning the pedal stand column, and a second pedal stand column rapid clamp 11.3 arranged on the second base and used for pressing the pedal stand column on the supporting block.
The A-column support crimping tool corresponds to the upper support longitudinal beam one by one. A post support crimping frock includes that three setting is used for compressing tightly second A post support active grab 12.1 of A post support on last support longeron.
The front-gear upper beam limiting tool is used for limiting the front-gear upper beam. The front-gear upper beam limiting tool comprises a front-gear upper beam support 13.1 arranged on the second base, two front-gear upper beam positioning blocks 13.2 arranged on the upper portion of the front-gear upper beam support and used for limiting the front-gear upper beam, and front-gear upper beam positioning grooves 13.3 arranged on the front-gear upper beam positioning blocks.
The front lower beam limiting tool is used for limiting the front lower beam. The front lower beam limiting tool comprises a front lower beam support 14.1 arranged on the second base, two front lower beam positioning blocks 14.2 arranged on the upper portion of the front lower beam support and used for limiting the front lower beam, and a front lower beam positioning groove 14.3 arranged on the front lower beam positioning block.
The quick clamp herein is prior art.
The welding operation device for the head frame assembly line of the embodiment is specifically used as follows:
the utility model provides a weld the welding operation of shelves, footboard stand and A post support after accomplishing through door frame welding station, will lean on shelves, footboard stand and A post support's welding as an organic whole after, the welding makes the door frame, and concrete process is as follows:
(1) as shown in fig. 1, 2, 3 and 5, the back rest 1a.1 is mounted on a back rest positioning tool on a back rest positioning frame (the back rest is in an inverted L shape and comprises a back rest upright post 1a.11 and an upper cross beam 1a.12 connected with the upper end of the back rest upright post into a whole, the upper cross beam and the back rest upright post are integrally bent and formed), the back rest upright post of the back rest is positioned in a back rest positioning groove on the back rest positioning block, and the lower end of the back rest upright post of the back rest is abutted against a back rest lower limiting block; and then the rear gear upright post of the rear gear is pressed on the rear gear positioning block through the pressing plate, so that the rear gear is positioned and installed on the rear gear positioning tool.
Installing a pedal upright post 1a.3 on a pedal upright post positioning tool (the pedal upright post comprises a front upright post 1a.3.1 and a vehicle door hinge mounting plate 1a.3.2 which is arranged on the front upright post and used for mounting a vehicle door hinge), wherein the pedal upright post is supported at the upper end of a vertical support post of a first support post and the upper end of a second support post; the side limiting block is used for carrying out side positioning on the pedal upright post; the two vertical pedal positioning pins are matched with the fabrication holes on the pedal upright column to position the pedal upright column; then, the pedal upright post is pressed on the second support column through the pedal upright post quick clamp; thereby positioning and installing the pedal upright post on the pedal upright post positioning tool.
As shown in fig. 2, 4 and 5, the a-pillar bracket 1a.2 is mounted on the a-pillar bracket positioning tool, the a-pillar bracket is located above a lower limiting block of the a-pillar bracket, the lower edge of the a-pillar bracket is limited by the lower limiting block, one side of the a-pillar bracket is limited by a limiting plate of the a-pillar bracket, the lower end of the a-pillar bracket abuts against the upper end of a front upright post of a pedal upright post, and the upper end of the a-pillar bracket abuts against a rear abutment;
then, compress tightly the A post support on A post support limiting plate through first A post support active grab to on installing A post support location frock.
(2) The door frame rotation limiting frame rotates around the vertical rotating shaft, so that the door lock limiting plate is abutted against the door lock mounting plate on the rear leaning stop, the hinge limiting plate is abutted against the door hinge mounting plate on the pedal upright post or is close to the door hinge mounting plate on the pedal upright post, thereby limiting the relative position of the vehicle door hinge mounting plate and the vehicle door lock mounting plate, effectively improving the relative position precision of the vehicle door hinge mounting plate and the vehicle door lock mounting plate after the rear back stop and the pedal upright post are welded into a whole, thereby effectively avoiding the situation that the rear back stop and the pedal upright post are welded into a whole due to welding deformation or other reasons, the relative position of the door hinge mounting plate and the door lock mounting plate does not meet the design requirement, after the door is mounted on the door hinge mounting plate through the door hinge, the door lock portion on the door will not be able to smoothly engage with the door lock portion mounted on the door lock mounting plate.
(3) The pedal upright post and the rear leaning block are connected into a whole by welding, the lower end of the A-post bracket and the upper end of the front upright post of the pedal upright post are connected into a whole by welding, and the upper end of the A-post bracket and the rear leaning block are connected into a whole by welding, so that the door frame is manufactured by welding.
Two, assemble into the headstock through locomotive frame assembly station with two left and right door frames and the preceding shelves entablature and the preceding shelves bottom end rail welding of connecting two left and right door frames (two the same door frames about same locomotive frame has), specific process as follows:
(1) fixing the two door frames on corresponding door frame positioning tools in a one-to-one correspondence manner, wherein a rear gear upright post of a rear gear of the door frame is positioned in a second rear gear positioning groove, and the lower end of the rear gear upright post of the rear gear is abutted against a rear gear lower positioning block; then, a rear gear upright post of a rear back gear is tightly pressed on a second rear back gear positioning block through a second pressing plate;
the pedal upright post of the car door frame is supported at the upper end of the supporting block, and the two pedal positioning upright posts are matched with the fabrication holes on the pedal upright post to position the pedal upright post; then, pressing the pedal upright column on a second support column through a second pedal upright column quick clamp;
(2) the front-rail upper beam is limited on a front-rail upper beam limiting tool, the front-rail upper beam is positioned in front-rail upper beam positioning grooves for positioning two front-rail upper beams, the front-rail upper beam is positioned between two door frames, one end of the front-rail upper beam is close to or propped against an A-column support of one door frame, and the other end of the front-rail upper beam is close to or propped against an A-column support of the other door frame;
limiting a front lower cross beam on a front lower cross beam limiting tool, wherein the front lower cross beam is positioned in a front lower cross beam positioning groove positioned by two front lower cross beams, the front lower cross beam is positioned between two door frames, one end of the front lower cross beam is close to or propped against the lower end of an A-pillar support of one door frame, and the other end of the front lower cross beam is close to or propped against the lower end of an A-pillar support of the other door frame;
secondly, pressing the A-column supports of the two door frames through a second A-column support quick clamp, so that one end of the front-stop upper beam is abutted against the A-column support of one door frame, and the other end of the front-stop upper beam is abutted against the A-column support of the other door frame; one end of the front bumper lower beam is abutted against the lower end of an A-pillar support of one door frame, and the other end of the front bumper lower beam is abutted against the lower end of an A-pillar support of the other door frame.
(3) Welding the back rest rails of the two door frames into a whole (as shown in fig. 1 and 2, the back rest rails are in an inverted L shape and comprise back rest stand columns and upper cross beams connected with the upper ends of the back rest stand columns into a whole, and the upper cross beams and the back rest stand columns are integrally bent and formed), in particular, welding the upper cross beams of the back rest rails of the two door frames into a whole; welding the front upper beam and the A-pillar supports of the two door frames into a whole; welding a front bumper lower beam and A-pillar supports of two door frames into a whole; thereby welding and manufacturing the headstock.
Example 2: the specific structure of this embodiment is as described in embodiment 1, except that:
as shown in fig. 9 and 10, the rotary door frame limiting device further includes a traveling device 5, a triggering device 7, and gap eliminating and tightening devices 8 corresponding to the hinge limiting plates one by one.
The walking device comprises a vertical cylinder body 5.1 arranged on a rotary limiting frame of the car door frame, a ventilation through hole arranged at the upper end of the vertical cylinder body, a lower through hole arranged at the lower end of the vertical cylinder body, an upper piston 5.2 and a lower piston 5.3 arranged in the vertical cylinder body, a pre-tightening compression spring 5.4 arranged in the vertical cylinder body and positioned above the upper piston, a vertical supporting rod 5.10 connected with the lower end of the lower piston, a roller 5.11 arranged at the lower end of the vertical supporting rod, a first interface 5.9 and a second interface 5.7 arranged on the outer side surface of the vertical cylinder body, a gas supplementing one-way valve 5.8 arranged on the second interface, and a roller boss 5.0 arranged on the upper surface of the first base and matched with the roller.
An upper limit stop 5.5 and a lower limit stop 5.6 are also arranged on the inner side surface of the vertical cylinder body, and the upper limit stop and the lower limit stop are positioned between the upper piston and the lower piston. The first interface and the second interface are positioned between the upper limit stop block and the lower limit stop block.
The roller boss comprises a roller supporting surface 5.02 parallel to the upper surface of the first base and a roller guide inclined surface 5.01 connecting the roller supporting surface and the upper surface of the first base.
The lower end of the vertical support rod is positioned below the vertical cylinder body, and a balancing weight is also arranged on the vertical support rod and below the vertical cylinder body. When the vehicle door frame rotation limiting frame rotates around the vertical rotating shaft, the roller rolls to the roller supporting surface along the roller guiding inclined surface or rolls to the roller guiding inclined surface from the roller supporting surface.
As shown in fig. 9, 11, and 12, the triggering device includes a triggering cylinder 7.1 disposed on the door lock limiting plate, two triggering pistons 7.2 disposed in the triggering cylinder, a piston rod connecting the two triggering pistons, a triggering rod 7.3 connected to the triggering piston, a triggering rod through hole disposed at a first end of the triggering cylinder, a triggering piston return spring 7.4 disposed in the triggering cylinder and located between a second end of the triggering cylinder and the triggering piston, and a third interface 7.5 and a fourth interface 7.6 disposed on an outer side surface of the triggering cylinder.
The trigger cylinder body is fixed on the door lock limiting plate through the first end. The axis of the trigger cylinder body is vertical to the door lock limiting plate. The door lock limiting plate is provided with a trigger rod through hole opposite to the trigger rod through hole, and the trigger rod sequentially penetrates through the trigger rod through hole and the trigger rod through hole. The end face of the trigger rod is provided with a ball. The first interface is connected with the third interface through a first connecting pipe.
When the trigger piston close to the first end of the trigger cylinder body abuts against the inner end face of the first end of the trigger cylinder body, the third interface is located between the two trigger pistons, and the fourth interface is located between the second end of the trigger cylinder body and the trigger piston close to the second end of the trigger cylinder body.
As shown in fig. 9, 11, and 13, the anti-backlash jacking device includes a jacking cylinder 8.1 disposed on the hinge limiting plate, a jacking piston 8.2 disposed in the jacking cylinder, a jacking rod via hole disposed at the first end of the jacking cylinder, a jacking rod 8.4 connected to the jacking piston, a jacking plate 8.6 disposed at the end of the jacking rod, and a fifth interface 8.7 and a sixth interface 8.8 disposed on the jacking cylinder. And a jacking piston return spring 8.5 is arranged in the jacking cylinder body and between the jacking piston and the first end of the jacking cylinder body.
The jacking cylinder body is fixed on the hinge limiting plate through the first end of the jacking cylinder body. The axis of the jacking cylinder body is vertical to the hinge limiting plate. The hinge limiting plate is provided with an ejector rod through hole, the ejector rod sequentially penetrates through the ejector rod through hole and the ejector rod through hole, and the jacking plate and the jacking cylinder body are located on two opposite sides of the hinge limiting plate.
The inner side surface of the jacking cylinder body is also provided with a jacking piston limiting block 8.3, and the fifth interface is arranged on the end surface of the second end of the jacking cylinder body. The fifth interface and the sixth interface are positioned on the same side of the jacking piston, and the sixth interface and the jacking piston are positioned on two opposite sides of the jacking piston limiting block. The fourth interface is connected with the fifth interface through a second connecting pipe. And an air inlet one-way valve 8.10 is also arranged between the fifth interface and the second connecting pipe. And a switch valve 8.9 is arranged on the sixth interface.
The specific use of the welding operation device of the head frame assembly line of the embodiment refers to embodiment 1, and the differences are as follows:
rotate around vertical pivot at the rotatory spacing of door frame, make the lock limiting plate support the in-process on the door lock mounting panel on the back shelves stand:
the roller rolls to the roller supporting surface along the roller guide inclined surface, so that the upper piston and the lower piston move upwards to further compress and pre-tighten the compression spring;
when the door lock limiting plate abuts against the door lock mounting plate on the back-stop upright post, the end part of the trigger rod abuts against the door lock mounting plate, so that the two trigger pistons move towards the second part of the trigger cylinder body, and the third interface and the fourth interface are positioned between the two trigger pistons;
when the third interface and the fourth interface are positioned between the two triggering pistons, the inner cavity of the jacking cylinder body is communicated with the inner cavity of the vertical cylinder body through the fifth interface, the second connecting pipe, the fourth interface, the third interface, the first interface and the first connecting pipe, at the moment, the upper piston moves downwards under the action of the pre-tightening compression spring, air between the upper piston and the lower piston is pressed into the jacking cylinder body, the jacking piston drives the ejector rod to extend out, so that the jacking plate is abutted against the door hinge mounting plate, and the gap between the jacking plate and the door hinge mounting plate is thoroughly eliminated (as the door frame rotation limiting frame rotates around the vertical rotating shaft, the door lock limiting plate is abutted against the door lock mounting plate on the rear-gear upright post, therefore, a gap needs to be reserved between the hinge limiting plate and the door hinge mounting plate, otherwise, the hinge limiting plate interferes with the door hinge mounting plate), and thus, the relative position of the vehicle door hinge mounting plate and the vehicle door lock mounting plate can be accurately limited, the relative position precision of the vehicle door hinge mounting plate and the vehicle door lock mounting plate after the backrest rail and the pedal upright post are welded into a whole is further effectively improved, and the problem that the relative position of the vehicle door hinge mounting plate and the vehicle door lock mounting plate does not accord with design requirements after the backrest rail and the pedal upright post are welded into a whole due to welding deformation or other reasons is effectively avoided.
After the pedal upright post and the rear backrest are connected into a whole by welding:
opening a switch valve;
then, the door frame rotation limiting frame rotates around the vertical rotating shaft, the door frame rotation limiting frame is rotated out, and in the process:
the puller piston is reset under the action of a puller piston return spring, as shown in fig. 10;
the trigger piston is reset under the action of the trigger piston return spring, as shown in fig. 9;
the upper piston is reset under the action of a pre-tightening compression spring;
the lower piston moves downwards to reset under the action of the gravity of the lower piston, the vertical supporting rod, the roller and the counterweight block; and in the process that the lower piston moves downwards to reset, outside air enters the vertical cylinder body through the air supplementing one-way valve.
Claims (7)
1. The utility model provides a locomotive frame assembly line welding operation device, characterized by includes: a door frame welding station and a head frame assembly station, wherein the door frame welding station comprises two door frame welding devices,
door frame welds dress device includes:
the door frame welding rack comprises a first base, a rear leaning stop positioning frame arranged on the first base and an A column support mounting frame arranged on the upper part of the rear leaning stop positioning frame;
the first pedal upright positioning tool is arranged on the first base and used for positioning the pedal upright;
the first rear backrest positioning tool is arranged on the rear backrest positioning frame and used for positioning the rear backrest; and
the A column support positioning tool is arranged on the A column support mounting frame and used for fixing the A column support;
locomotive frame final assembly station includes:
the assembly rack comprises a second base, a rear leaning stop mounting rack arranged on the second base and a left and a right upper supporting longitudinal beams which are arranged on the upper part of the rear leaning stop mounting rack and are parallel to each other;
the left door frame positioning tool and the right door frame positioning tool are arranged on the general assembly rack and are used for positioning a door frame;
the front-gear upper beam limiting tool is used for limiting the front-gear upper beam; and
the front-gear lower beam limiting tool is used for limiting the front-gear lower beam;
the front-gear upper beam limiting tool comprises a front-gear upper beam support arranged on the second base, two front-gear upper beam positioning blocks arranged on the upper part of the front-gear upper beam support and used for limiting a front-gear upper beam, and front-gear upper beam positioning grooves arranged on the front-gear upper beam positioning blocks;
the front lower cross beam limiting tool comprises a front lower cross beam support arranged on the second base, two front lower cross beam positioning blocks arranged on the upper part of the front lower cross beam support and used for limiting the front lower cross beam, and a front lower cross beam positioning groove arranged on the front lower cross beam positioning blocks;
the door frame welding device also comprises a rotary door frame limiting device which is used for limiting a door lock mounting plate on the rear stop for mounting a door lock and a door hinge mounting plate on the pedal upright post for mounting a door hinge,
the rotary type car door frame limiting device comprises a vertical rotating shaft arranged on the first base, a car door frame rotating limiting frame rotatably arranged on the vertical rotating shaft, a door lock limiting plate arranged on the car door frame rotating limiting frame and used for limiting a car door lock mounting plate, and a hinge limiting plate arranged on the car door frame rotating limiting frame and used for limiting a car door hinge mounting plate.
2. The vehicle head frame assembly line welding operation device according to claim 1, wherein the first pedal upright positioning tool comprises a first support column and a second support column which are arranged on a first base and used for supporting the pedal upright, two vertical pedal positioning pins which are arranged on the first base and used for positioning the pedal upright, and a first pedal upright quick clamp which is arranged on the first base and used for pressing the pedal upright on the second support column;
the first rear backrest positioning tool comprises a plurality of first rear backrest positioning blocks, first rear backrest positioning grooves and first pressing plates, wherein the first rear backrest positioning blocks are sequentially arranged on a rear backrest positioning frame from top to bottom;
a post support location frock is used for a post support limiting plate and a plurality of setting of spacing A post support on A post support mounting bracket including setting up and is used for compressing tightly the first A post support rapid clamp on A post support limiting plate with A post support on A post support mounting bracket.
3. The vehicle head frame assembly line welding operation device as claimed in claim 2, wherein the a-pillar support positioning tool further comprises an a-pillar support lower limiting block arranged on the a-pillar support mounting frame and used for limiting the a-pillar support.
4. The vehicle head frame assembly line welding operation device as claimed in claim 2, wherein the first back rest positioning tool further comprises a back rest lower limiting block arranged on the upper surface of the first base.
5. The vehicle head frame assembly line welding operation device as claimed in claim 2, wherein a side limiting block for limiting the pedal stand column is arranged at the upper end of the first support column, and a vertical support column for supporting the pedal stand column is arranged at the upper end of the first support column.
6. The vehicle head frame assembly line welding operation device as claimed in claim 1, wherein the vehicle door frame positioning tool comprises a second rear stop positioning tool, a second pedal upright positioning tool and an A-pillar bracket crimping tool,
the second rear backrest positioning tool comprises a plurality of second rear backrest positioning blocks, second rear backrest positioning grooves and second pressing plates, wherein the second rear backrest positioning blocks are sequentially arranged on the rear backrest mounting frame from top to bottom;
the second pedal upright positioning tool comprises a supporting block arranged on the second base and used for supporting the pedal upright, two pedal positioning upright rods arranged on the second base and used for positioning the pedal upright, and a second pedal upright quick clamp arranged on the second base and used for pressing the pedal upright onto the supporting block;
a post support crimping frock and last support longeron one-to-one, A post support crimping frock include that a plurality of sets up the second A post support rapid clamp who is used for compressing tightly A post support on last support longeron.
7. The welding operation device of the locomotive frame assembly line of claim 1, wherein the rotary type doorframe limiting device further comprises a walking device, a triggering device and clearance eliminating jacking devices which are in one-to-one correspondence with the hinge limiting plates,
the walking device comprises a vertical cylinder body arranged on a vehicle door frame rotation limiting frame, a ventilation through hole arranged at the upper end of the vertical cylinder body, a lower through hole arranged at the lower end of the vertical cylinder body, an upper piston and a lower piston arranged in the vertical cylinder body, a pre-tightening compression spring arranged in the vertical cylinder body and positioned above the upper piston, a vertical supporting rod connected with the lower end of the lower piston, a roller arranged at the lower end of the vertical supporting rod, a first interface and a second interface arranged on the outer side surface of the vertical cylinder body, an air-supplementing one-way valve arranged on the second interface and a roller boss arranged on the upper surface of the first base and matched with the roller, wherein the roller boss comprises a roller supporting surface parallel to the upper surface of the first base and a roller guide inclined surface connecting the roller supporting surface with the upper surface of the first base;
the trigger device comprises a trigger cylinder body arranged on a door lock limiting plate, two trigger pistons arranged in the trigger cylinder body, a piston connecting rod for connecting the two trigger pistons, a trigger rod connected with the trigger piston, a trigger rod through hole arranged at the first end of the trigger cylinder body, a trigger piston reset spring arranged in the trigger cylinder body and positioned between the second end of the trigger cylinder body and the trigger piston, and a third interface and a fourth interface arranged on the outer side surface of the trigger cylinder body, wherein a trigger rod through hole opposite to the trigger rod through hole is formed in the door lock limiting plate, the trigger rod sequentially penetrates through the trigger rod through hole and the trigger rod through hole, and the first interface and the third interface are connected through a first connecting pipe;
the anti-backlash jacking device comprises a jacking cylinder body arranged on the hinge limiting plate, a jacking piston arranged in the jacking cylinder body, a jacking rod through hole arranged at the first end of the jacking cylinder body, a jacking rod connected with the jacking piston, a jacking plate arranged at the end part of the jacking rod, and a fifth interface and a sixth interface which are arranged on the jacking cylinder body,
the hinge limiting plate is provided with an ejector rod through hole, the ejector rod sequentially penetrates through an ejector rod through hole and the ejector rod through hole, the jacking plate and the jacking cylinder body are located on two opposite sides of the hinge limiting plate, the fifth interface and the sixth interface are located on the same side of the jacking piston, the fourth interface and the fifth interface are connected through a second connecting pipe, an air inlet one-way valve is further arranged between the fifth interface and the second connecting pipe, and a switch valve is arranged on the sixth interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540783.0A CN108788592B (en) | 2018-05-30 | 2018-05-30 | Headstock assembly line welding operation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540783.0A CN108788592B (en) | 2018-05-30 | 2018-05-30 | Headstock assembly line welding operation device |
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| CN108788592A CN108788592A (en) | 2018-11-13 |
| CN108788592B true CN108788592B (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810540783.0A Active CN108788592B (en) | 2018-05-30 | 2018-05-30 | Headstock assembly line welding operation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110064884B (en) * | 2019-06-06 | 2024-04-30 | 安徽安凯汽车股份有限公司 | Welding positioning tool for lower cross beam of passenger door of passenger car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009952A1 (en) * | 2006-03-03 | 2007-09-06 | Edag Engineering + Design Ag | Clamping device for use in e.g. truck, has extensions supported by base and comprising clamping unit for accommodating clamping point of framework, where drive device retracts and extends extensions |
| CN201214177Y (en) * | 2008-07-08 | 2009-04-01 | 中国北车集团大同电力机车有限责任公司 | Control cab assembly welding jigs |
| CN102485575A (en) * | 2010-12-31 | 2012-06-06 | 上汽通用五菱汽车股份有限公司 | Automobile tail gate mounting tool |
| CN203209901U (en) * | 2013-04-24 | 2013-09-25 | 湖北运银实业有限公司 | Universal welding fixture for driving cabs of various models |
| CN103240556B (en) * | 2013-05-10 | 2015-04-01 | 上汽通用五菱汽车股份有限公司 | Welding fixture for formula racing |
| CN205097078U (en) * | 2015-10-20 | 2016-03-23 | 上海安莱德汽车零部件有限公司 | Be used for car door plant elongated clamping device |
| CN105414837B (en) * | 2015-11-13 | 2018-05-11 | 奇瑞汽车股份有限公司 | A kind of integrated harness of the split type hinge of automobile front/rear door |
| CN205587875U (en) * | 2016-03-11 | 2016-09-21 | 朗美(厦门)健身器材有限公司 | Dynamic positioning device is floated in combination of laser cutting equipment |
| CN208513931U (en) * | 2018-05-30 | 2019-02-19 | 嵊州市恒中机器有限公司 | A kind of headstock frame general assembly production line welding equipment |
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Effective date of registration: 20220309 Address after: 313102 No. 168, LAOHUDONG village, Lijiaxiang Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Hengyuan Machinery Co.,Ltd. Address before: No. 368, Punan Avenue, Shengzhou Economic Development Zone, Shaoxing City, Zhejiang Province Patentee before: SHENGZHOU HENGZHONG MACHINERY Co.,Ltd. |