CN112536341A - Repair welding and deformation correction device and method for military vehicle longitudinal beam - Google Patents
Repair welding and deformation correction device and method for military vehicle longitudinal beam Download PDFInfo
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- CN112536341A CN112536341A CN202011362065.2A CN202011362065A CN112536341A CN 112536341 A CN112536341 A CN 112536341A CN 202011362065 A CN202011362065 A CN 202011362065A CN 112536341 A CN112536341 A CN 112536341A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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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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- Butt Welding And Welding Of Specific Article (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a repair welding and deformation correcting device and a repair welding and deformation correcting method for a longitudinal beam of an military vehicle, wherein the repair welding and deformation correcting device comprises a bottom plate, a supporting base assembly arranged on the bottom plate, and a positioning mechanism, a supporting mechanism, a side clamping mechanism and a spiral clamping mechanism which are arranged on the supporting base assembly; the side clamping mechanism comprises a horizontal supporting platform arranged on the corresponding supporting base and side clamping blocks arranged at two ends of the horizontal supporting platform; the spiral clamping mechanism comprises a fixed block arranged on the corresponding supporting base, a fixed clamping plate arranged on the fixed block, a pressing arm arranged in the middle of the fixed clamping plate and a spiral pressing rod arranged on the pressing arm; the left and right longitudinal beam assemblies of the same vehicle are arranged on a set of repair welding fixture; the longitudinal beam is fixed through the combined action of the clamping mechanism and the supporting mechanism; the welding deformation amount required to be corrected of the longitudinal beam is controlled by increasing or decreasing the number of the adjusting gaskets, and the post-welding precision is high; meanwhile, the function requirement that one set of welding fixture is suitable for various vehicle types can be met, and the welding fixture is extremely creative.
Description
Technical Field
The invention belongs to the technical field of military vehicle manufacturing, and particularly relates to a repair welding and deformation correcting device and method for a longitudinal beam of an military vehicle.
Background
The longitudinal beam comprises a straight beam section and a curved beam section, the straight beam section is usually welded by a robot during welding, and certain deformation usually occurs after the welding is finished; the robot mainly welds a straight beam section of a longitudinal beam, and a curved beam section needs to be repaired and welded manually. At present, the manufacturing field of military vehicles mainly adopts a small-batch and multi-variety production mode, the types of vehicles are various, the length of a longitudinal beam of the military vehicle is large (about 4-6.5 m long), welding seams are distributed on two sides of the longitudinal beam (the total length of the welding seams is 8-13 m), MAG welding is adopted at present, and a heat affected zone can reach 15-20 mm.
According to the characteristics, a long straight welding line on the longitudinal beam is welded by a robot on site, and then the welding of a place which is not easy to weld by the robot is repaired manually. The repair welding is directly carried out on the platform under the condition of no fixture fixation, and as the heat input generated by MAG welding is large and the temperature field distribution is uneven, the longitudinal beam is easy to generate larger deflection deformation, the precision of the longitudinal beam is influenced, and the subsequent assembly work is not facilitated.
Generally, welding deformation is corrected by hammering a welding deformation part after repair welding is finished, the process greatly increases the workload and labor intensity of workers, the correction process is long in time consumption and high in difficulty, local deformation can occur due to the generation of residual stress, the production mode cannot produce a longitudinal beam with high precision, the production efficiency is low, and the qualified rate is low; in addition, the existing repair welding device can only repair weld the longitudinal beam of one vehicle type, and multiple vehicle types need multiple repair welding devices, so that the number of tools is increased, the cost is increased, and the occupied space is occupied; therefore, a jig for repairing welding and correcting welding deformation of the longitudinal beam of the military vehicle, which has high space utilization rate and high post-welding precision and can be suitable for various vehicle types, is urgently needed.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a repair welding and deformation correcting device and a method for the longitudinal beam of the military vehicle, wherein a left longitudinal beam assembly and a right longitudinal beam assembly of the same vehicle are arranged on a set of repair welding clamp, so that the occupied area of the set of clamp is greatly reduced, and the space utilization rate of a field is improved; welding deformation of the left and right longitudinal beam assemblies can be corrected simultaneously, and the matching degree of the left and right longitudinal beams on the same vehicle is improved, so that the assembly precision of the whole vehicle is improved; the longitudinal beam is fixed through the combined action of the clamping mechanism and the supporting mechanism, meanwhile, the pressure required by correcting the welding deformation is provided, and the height of the supporting mechanism is adjusted by increasing or decreasing the number of adjusting gaskets, so that the welding deformation required to be corrected by the longitudinal beam is controlled, and the accuracy of the longitudinal beam after welding is improved; the labels are marked at the mounting holes of the bottom plate and the corresponding support bases, and after the vehicle types are switched, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, so that the function requirement that one set of welding clamp is suitable for various vehicle types is met; the problem of traditional longeron repair welding correction anchor clamps assembly occupation space big, production efficiency is low, the qualification rate is low and be suitable for the motorcycle type singleness is solved, the utmost point is creative.
In order to achieve the aim, the invention provides a repair welding and deformation correcting device and a repair welding and deformation correcting method for a longitudinal beam of an military vehicle, which comprises a bottom plate, a supporting base assembly arranged on the bottom plate, and a positioning mechanism, a supporting mechanism, a side clamping mechanism and a spiral clamping mechanism which are arranged on the supporting base assembly; wherein the content of the first and second substances,
the supporting base assembly comprises a first supporting base arranged below the positioning mechanism, a second supporting base arranged below the supporting mechanism, a third supporting base arranged below the side clamping mechanism and a fourth supporting base arranged below the spiral clamping mechanism;
the side clamping mechanism comprises a horizontal supporting platform arranged on the third supporting base and side clamping blocks arranged at two ends of the horizontal supporting platform;
the screw clamping mechanism comprises a fixing block arranged on the fourth supporting base, a fixing clamping plate arranged on the fixing block, a pressing arm arranged in the middle of the fixing clamping plate and a screw pressing rod arranged on the pressing arm.
Further, a spiral push rod is mounted on the side surface clamping block, and a first handle is mounted on the spiral push rod;
and a certain number of adjusting gaskets can be arranged on the side clamping blocks according to actual requirements.
Furthermore, a second handle is installed at one end of the spiral pressure rod, and a pressure head is installed at the other end of the spiral pressure rod.
Further, the first support base comprises a support bottom plate installed on the bottom plate, a support pillar installed on the support bottom plate, a support top plate installed on the support pillar, and a wing plate arranged on the support pillar;
the second support base and the fourth support base are the same in structure as the first support base;
and a toggle plate is further arranged at the joint of the support column of the third support base and the support top plate.
Furthermore, the positioning mechanism, the supporting mechanism, the side clamping mechanism and the screw clamping mechanism are respectively mounted on the supporting top plates of the corresponding supporting bases.
Further, the positioning mechanism comprises a vertical positioning pin arranged on the first support base, a positioning block sleeved on the vertical positioning pin, and a first adjusting gasket arranged between the first support base and the positioning block; the number of the first adjusting gaskets can be increased or decreased according to actual needs.
Furthermore, a stop block is arranged on the side surfaces of the first adjusting gasket and the positioning block.
Further, the supporting mechanism comprises a supporting block arranged on the second supporting base and a second adjusting gasket arranged between the second supporting base and the supporting block;
a position fixing hole is formed in the supporting block;
the number of the second adjusting gaskets can be increased or decreased according to actual needs.
Furthermore, a mounting hole is formed in the bottom plate;
a support bottom plate of the support base component is provided with a position-fixing hole;
the position-retaining hole is matched with the mounting hole.
According to another aspect of the invention, a repair welding and deformation correcting device and a correcting method of the repair welding and deformation correcting device for the military vehicle longitudinal beam are provided, and the correcting method comprises the following steps:
s100: selecting the position of each support base along the trend of the left longitudinal beam and the right longitudinal beam on the bottom plate according to the models of the left longitudinal beam and the right longitudinal beam, and symmetrically arranging a sufficient number of support bases;
s200: determining the number of required adjusting shims by observing the deformation of the longitudinal beam of the vehicle and according to certain theoretical calculation and experience, and then installing the adjusting shims on the corresponding supporting base;
s300: after the adjusting shim is installed, the left longitudinal beam and the right longitudinal beam are placed on the whole clamp and are positioned by the positioning mechanism, the longitudinal beams are firstly supported by the supporting mechanism, and then are adjusted and clamped by the side clamping mechanism and the spiral clamping mechanism;
s400: therefore, the left and right longitudinal beam assemblies are arranged on a set of repair welding fixture, and then repair welding work is carried out;
s500: when the welding clamping device is applied to other vehicle types, the mounting holes of the bottom plate and the corresponding support bases are marked by the labels, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, and the functional requirement that one set of welding clamping device is suitable for various vehicle types is met.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) according to the repair welding and deformation correcting device for the longitudinal beam of the military vehicle, the left longitudinal beam assembly and the right longitudinal beam assembly of the same vehicle are symmetrically arranged on a set of repair welding fixture in the left-right direction, so that the left longitudinal beam assembly and the right longitudinal beam assembly can be welded and adjusted on the same set of fixture, the space utilization rate of a site is improved, the welding deformation of the left longitudinal beam assembly and the right longitudinal beam assembly can be corrected simultaneously, the matching degree of the left longitudinal beam assembly and the right longitudinal beam assembly on the same vehicle is improved, and the assembling precision of the whole vehicle is improved; therefore, on one hand, the occupied area of the clamp is greatly reduced, and the space utilization rate of the site is improved; on the other hand, the welding deformation of the left and right longitudinal beam assemblies can be simultaneously corrected, and the matching degree of the left and right longitudinal beams on the same vehicle is improved, so that the assembly precision of the whole vehicle is improved, and the method is extremely creative.
(2) According to the repair welding and deformation correction device for the longitudinal beam of the military vehicle, the longitudinal beam is fixed through the common action of the clamping mechanism and the supporting mechanism, meanwhile, the pressure required by correction of welding deformation is provided, the height of the supporting mechanism is adjusted by increasing or decreasing the number of the adjusting gaskets, so that the welding deformation amount required by correction of the longitudinal beam is controlled, the accuracy of the longitudinal beam after welding is improved, and the yield of longitudinal beam production is further improved.
(3) According to the repair welding and deformation correction device for the longitudinal beam of the military vehicle, the mounting holes of the bottom plate and the corresponding support bases are marked by the labels, after the vehicle types are switched, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, and the support bases of the set of clamps are adjusted according to different vehicle types, so that the set of clamps are matched with the longitudinal beam; the functional requirements that one set of welding fixture is suitable for various vehicle types are met;
(4) when the device and the method for repair welding and deformation correction of the longitudinal beams of the military vehicle are used, the position of each support base is selected on the bottom plate along the trend of the left longitudinal beam and the right longitudinal beam according to the types of the left longitudinal beam and the right longitudinal beam, and enough support bases are symmetrically arranged; determining the number of the required adjusting gaskets by observing the deformation of the longitudinal beam of the vehicle; after the adjusting shim is installed, the adjusting shim is positioned by the positioning mechanism, the supporting mechanism supports the left longitudinal beam and the right longitudinal beam, and the adjusting shim is adjusted and clamped by the side clamping mechanism and the spiral clamping mechanism; in the actual production process, after the set of correction device is used, the qualification rate of the longitudinal beam is greatly improved.
Drawings
FIG. 1 is a schematic diagram of an overall layout of a repair welding and deformation correcting device and method for a longitudinal beam of an military vehicle according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a positioning mechanism of the military vehicle longitudinal beam repair welding and deformation correction device and method according to the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a support mechanism of an apparatus and method for repair welding and deformation correction of a military vehicle stringer in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a side clamping mechanism of an apparatus and method for repair welding and distortion correction of a military vehicle stringer in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a screw clamping mechanism of an apparatus and method for repair welding and distortion correction of a military vehicle stringer in accordance with an embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular:
a bottom plate, a 2-supporting base component, a 21-first supporting base, a 22-second supporting base, a 23-third supporting base, a 24-fourth supporting base, a 25-toggle plate, a 3-positioning mechanism, a 31-vertical positioning pin, a 32-positioning block, a 33-first adjusting gasket, a 34-stop block, a 4-supporting mechanism, a 41-supporting block and a 42-second adjusting gasket, 5-side clamping mechanism, 51-horizontal supporting platform, 52-side clamping block, 53-spiral push rod, 54-first handle, 6-spiral clamping mechanism, 61-fixed block, 62-fixed clamping plate, 63-pressing arm, 64-spiral pressing rod, 65-second handle, 66-pressing head, 7-left longitudinal beam and 8-right longitudinal beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The term "left longitudinal beam" refers to a longitudinal beam standing in the head position facing the vehicle, which is located in the left-hand direction on the vehicle; the right longitudinal beam is a longitudinal beam which faces the vehicle and stands at the head of the vehicle and is positioned on the vehicle in the right-hand direction; in fig. 1, the left end is the direction of the vehicle head, and the right end is the direction of the vehicle tail.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-5, the invention provides a repair welding and deformation correcting device and method for a longitudinal beam of an military vehicle, comprising a base plate 1, a supporting base assembly 2 arranged on the base plate 1, and a positioning mechanism 3, a supporting mechanism 4, a side clamping mechanism 5 and a spiral clamping mechanism 6 arranged on the supporting base assembly 2; the upper surface of the bottom plate 1 is provided with a mounting hole corresponding to the support base component 2, and the support base component 2 is fixed on the bottom plate 1 through the mounting hole; according to the repair welding and deformation correction device and method for the longitudinal beam of the military vehicle, the left longitudinal beam 7 and the right longitudinal beam 8 of the same vehicle are arranged on a set of repair welding fixture, so that the occupied area of the set of fixture is greatly reduced, and the space utilization rate is improved; the longitudinal beam is fixed through the combined action of the clamping mechanism and the supporting mechanism, meanwhile, the pressure required by correcting the welding deformation is provided, and the height of the supporting mechanism is adjusted by increasing or decreasing the number of adjusting gaskets, so that the welding deformation required to be corrected by the longitudinal beam is controlled, and the accuracy of the longitudinal beam after welding is improved; the labels are marked at the mounting holes of the bottom plate and the corresponding support bases, and after the vehicle types are switched, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, so that the function requirement that one set of welding clamp is suitable for various vehicle types is met; the problem of traditional longeron repair welding correction anchor clamps assembly occupation space big, production efficiency is low, the qualification rate is low and be suitable for the motorcycle type singleness is solved, the utmost point is creative.
Further, as shown in fig. 1 to 5, the support base assembly 2 includes a first support base 21 installed below the positioning mechanism 3, a second support base 22 installed below the support mechanism 4, a third support base 23 installed below the side clamping mechanism 5, and a fourth support base 24 installed below the screw clamping mechanism 6. The first support base 21 comprises a support bottom plate, a support column installed on the support bottom plate, a support top plate installed on the support column and a wing plate arranged on the support column; the second support base 22 and the fourth support base 24 are identical in structure to the first support base 21; the third support base 23 is different from the first support base 21, the second support base 22 and the fourth support base 24 in that a toggle plate 25 is further provided between a support column of the third support base 23 and a support top plate; the wing plates and the toggle plates are used for strengthening the supporting function of the supporting columns and increasing the overall stability of the correcting clamp; a position-fixing hole is formed in the supporting bottom plate and matched with the mounting hole in the bottom plate 1; the positioning mechanism 3, the supporting mechanism 4, the side clamping mechanism 5 and the screw clamping mechanism 6 are respectively mounted on the supporting top plates of the corresponding supporting bases.
Further, as shown in fig. 1 and fig. 2, the positioning mechanism 3 includes a vertical positioning pin 31 disposed on the first support base 21, a positioning block 32 sleeved on the vertical positioning pin 31, and a first adjusting shim 33 installed between the first support base 21 and the positioning block 32; the positioning block 32 can slide along the vertical positioning pin 31; an L-shaped stopper 34 is installed on the side surfaces of the first adjusting shim 33 and the positioning block 32, and the L-shaped stopper 34 can fix the transverse positions of the first adjusting shim 33 and the positioning block 32 to ensure that the vertical positioning pin 31 is not damaged by transverse stress impact force; the connecting bolt sequentially penetrates through the positioning block 32 and the first adjusting gasket 33 to be fixed with the supporting top plate of the first supporting base 21; the L-shaped stop block 34 and the positioning block 32 are fixed through bolts; the vertical positioning pin 31 is matched with the positioning hole of the longitudinal beam and can penetrate through the longitudinal beam to extend to the upper surface of the longitudinal beam; the number of the first adjusting gaskets 33 can adjust the height of the positioning mechanism according to actual needs, so that the welding deformation of the longitudinal beam required to be corrected is controlled, and the post-welding precision of the longitudinal beam is improved; the positioning mechanism 3 mainly plays a positioning role in clamping the longitudinal beam, so that the welding precision is improved; the number of the positioning mechanisms 3 is determined according to actual needs.
Further, as shown in fig. 1 and 3, the supporting mechanism 4 includes a supporting block 41 disposed on the second supporting base 22 and a second adjusting shim 42 disposed between the second supporting base 22 and the supporting block 41; a position fixing hole is formed in the supporting block 41 and used for being fixed with a supporting top plate of the second supporting base 22; the number of the second adjusting shims 42 can be increased or decreased according to actual needs; usually, the longitudinal beam is long and is easy to generate Y-direction deflection deformation, and in order to ensure the subsequent assembly precision, the residual deformation after welding needs to be reduced; the supporting mechanism 4 mainly plays a supporting role when a longitudinal beam is clamped, and provides Y-direction supporting force for the longitudinal beam so as to fix the longitudinal beam; a plurality of supporting mechanisms 4 are arranged on the longitudinal beam according to actual needs so as to ensure the overall stability of the longitudinal beam during repair welding; when the device is used, the deformation generated by robot welding is measured according to actual conditions, the welding deformation in the Y direction during manual repair welding is calculated according to a corresponding welding theory and is used as a basis for correcting the welding deformation, meanwhile, proper adjustment is carried out by combining with an actual production experience value on site, the height of the supporting block 41 is changed by adjusting the number of the gaskets before repair welding, and the deformation needing to be corrected is reserved.
Further, as shown in fig. 1 and 4, the side clamping mechanism 5 includes a horizontal support table 51 provided on the support top plate of the third support base 23, and side clamping blocks 52 mounted at both ends of the horizontal support table 51; the horizontal support platform 51 is used for bearing and placing longitudinal beams; the side surface clamping block 52 is provided with a spiral push rod 53, and the spiral push rod 53 is provided with a first handle 54; the first handle 54 can control the movement of the spiral push rod 53, so as to control the clamping degree of the side clamping block 52; a toggle plate is arranged at the joint of the supporting top plate of the third supporting base 23 and the supporting column, and is used for enhancing the integral stability of the side clamping mechanism; because the curvature of the bent part of the longitudinal beam can be changed due to the welding deformation in the Z direction in the welding process, the side clamping mechanism 5 is used for fixing the longitudinal beam at the connecting part of the bent section and the long straight section of the longitudinal beam, and the welding deformation of the longitudinal beam in the Z direction is controlled; in actual use, the military vehicle longitudinal beam repair welding and welding deformation correcting clamp is suitable for the repair welding of various longitudinal beams, and the required correcting amount is different according to different lengths of the longitudinal beams, so that the required height is adjusted by arranging adjusting gaskets on the horizontal support platform of the side clamping mechanism 5, and the quantity of the adjusting gaskets can be increased or decreased according to actual requirements.
Further, as shown in fig. 1 and 5, the screw clamping mechanism 6 includes a fixed block 61 provided on the support top plate of the fourth support base 24, a fixed clamp plate 62 mounted on the fixed block 61, a pressing arm 63 mounted in the middle of the fixed clamp plate 62, and a screw pressing rod 64 mounted on the pressing arm 63; a second handle 65 is installed at one end of the spiral compression rod 64, a pressure head 66 is installed at the other end of the spiral compression rod 64, the pressure head 66 is of a disc structure with the diameter equal to the width of the longitudinal beam, and the longitudinal beam can be effectively prevented from being twisted and deformed by being pressed from the Y direction; the vertical movement of the spiral pressure rod 64 can be controlled through the second handle 65, so that the vertical position of the pressure head 66 is controlled; the fixed clamping plate 62 and the pressing arm 63 are fixed through a horizontal fixing pin 67; when the longitudinal beam is clamped, the spiral clamping mechanism 6 is mainly matched with the supporting mechanism 4 to fix the longitudinal beam along the Y direction, and after the longitudinal beam is positioned on the clamp, the position of the longitudinal beam is fixed by applying pressure in the Y direction.
The working principle of the repair welding and deformation correcting device and method for the longitudinal beam of the military vehicle provided by the invention comprises the following steps:
(1) selecting the position of each support base along the trend of the left longitudinal beam and the right longitudinal beam on the bottom plate according to the models of the left longitudinal beam and the right longitudinal beam, and symmetrically arranging a sufficient number of support bases;
(2) determining the number of required adjusting shims by observing the deformation of the longitudinal beam of the vehicle and according to certain theoretical calculation and experience, and then installing the adjusting shims on the corresponding supporting base;
(3) after the adjusting shim is installed, the left longitudinal beam and the right longitudinal beam are placed on the whole clamp and are positioned by the positioning mechanism, the longitudinal beams are firstly supported by the supporting mechanism, and then are adjusted and clamped by the side clamping mechanism and the spiral clamping mechanism;
(4) thus, the left and right longitudinal beam assemblies are arranged on a set of repair welding fixture;
(5) when the welding fixture is required to be applied to other vehicle types, the mounting holes of the bottom plate and the corresponding support bases are marked by the labels, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, and the functional requirement that one set of welding fixture is suitable for various vehicle types is met.
According to the invention, the left longitudinal beam assembly and the right longitudinal beam assembly are arranged on a set of repair welding fixture and are arranged in a bilateral symmetry manner, so that the left longitudinal beam assembly and the right longitudinal beam assembly can be welded and adjusted on the same set of fixture, thus the floor area of the set of fixture is greatly reduced, and the space utilization rate of a site is improved; the welding deformation of the left and right longitudinal beam assemblies can be corrected simultaneously, and the matching degree of the left and right longitudinal beams on the same vehicle is improved, so that the assembly precision of the whole vehicle is improved; the longitudinal beam is fixed through the combined action of the clamping mechanism and the supporting mechanism, meanwhile, the pressure required by correcting the welding deformation is provided, and the height of the supporting mechanism is adjusted by increasing or decreasing the number of adjusting gaskets, so that the welding deformation required to be corrected by the longitudinal beam is controlled, and the accuracy of the longitudinal beam after welding is improved; in the actual production process, the total deflection deformation of the longitudinal beam in the Y direction is controlled within 5mm when the repair welding is finally completed, and the design requirement of a product can be met; after the set of clamps is adopted, the qualification rate of the longitudinal beam is increased from 70% to 90%; when the welding fixture is required to be applied to other vehicle types, the mounting holes of the bottom plate and the corresponding support bases are marked by using the labels, and the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, so that the functional requirement that one set of welding fixture is suitable for various vehicle types is met; the problem of traditional longeron repair welding correction anchor clamps assembly occupation space big, production efficiency is low, the qualification rate is low and be suitable for the motorcycle type singleness is solved, the utmost point is creative.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an military vehicle longeron repair welding and deformation orthotic devices which characterized in that: the clamping device comprises a bottom plate (1), a supporting base assembly (2) arranged on the bottom plate (1), and a positioning mechanism (3), a supporting mechanism (4), a side clamping mechanism (5) and a spiral clamping mechanism (6) which are arranged on the supporting base assembly (2); wherein the content of the first and second substances,
the supporting base assembly (2) comprises a first supporting base (21) arranged below the positioning mechanism (3), a second supporting base (22) arranged below the supporting mechanism (4), a third supporting base (23) arranged below the side clamping mechanism (5) and a fourth supporting base (24) arranged below the spiral clamping mechanism (6);
the side clamping mechanism (5) comprises a horizontal supporting platform (51) arranged on the third supporting base (23) and side clamping blocks (52) arranged at two ends of the horizontal supporting platform (51);
the spiral clamping mechanism (6) comprises a fixing block (61) arranged on the fourth supporting base (24), a fixing clamping plate (62) arranged on the fixing block (61), a pressing arm (63) arranged in the middle of the fixing clamping plate (62) and a spiral pressing rod (64) arranged on the pressing arm (63), so that welding deformation correction of the vehicle straightening longitudinal beam assembly is realized.
2. The repair welding and deformation correcting device for the military vehicle longitudinal beam of claim 1, wherein: a spiral push rod (53) is mounted on the side surface clamping block (52), and a first handle (54) is mounted on the spiral push rod (53);
the side clamping blocks (52) can be provided with a certain number of adjusting shims according to actual needs.
3. The repair welding and deformation correcting device for the military vehicle longitudinal beam of claim 1, wherein: and a second handle (65) is installed at one end of the spiral pressure lever (64), and a pressure head (66) is installed at the other end of the spiral pressure lever.
4. The repair welding and deformation correction device for military vehicle longitudinal beams of any one of claims 1 to 3, wherein the repair welding and deformation correction device comprises: the first support base (21) comprises a support bottom plate arranged on the bottom plate (1), a support column arranged on the support bottom plate, a support top plate arranged on the support column and a wing plate arranged on the support column;
the second support base (22) and the fourth support base (24) are structurally identical to the first support base (21);
and a toggle plate (25) is arranged at the joint of the support column of the third support base (23) and the support top plate.
5. The repair welding and deformation correcting device for the military vehicle longitudinal beam of claim 4, wherein: the positioning mechanism (3), the supporting mechanism (4), the side clamping mechanism (5) and the spiral clamping mechanism (6) are respectively arranged on the supporting top plates of the corresponding supporting bases.
6. The repair welding and deformation correction device for military vehicle longitudinal beams of any one of claims 1 to 3, wherein the repair welding and deformation correction device comprises: the positioning mechanism (3) comprises a vertical positioning pin (31) arranged on the first support base (21), a positioning block (32) sleeved on the vertical positioning pin (31), and a first adjusting gasket (33) arranged between the first support base (21) and the positioning block (32); the number of the first adjusting gaskets (33) can be increased or decreased according to actual needs.
7. The repair welding and deformation correcting device for the military vehicle longitudinal beam of claim 6, wherein: and a stop block (34) is arranged on the side surfaces of the first adjusting gasket (33) and the positioning block (32).
8. The repair welding and deformation correction device for military vehicle longitudinal beams of any one of claims 1 to 3, wherein the repair welding and deformation correction device comprises: the supporting mechanism (4) comprises a supporting block (41) arranged on the second supporting base (22) and a second adjusting gasket (42) arranged between the second supporting base (22) and the supporting block (41);
a position fixing hole is formed in the supporting block (41);
the number of the second adjusting gaskets (42) can be increased or decreased according to actual needs.
9. The repair welding and deformation correction device for military vehicle longitudinal beams of any one of claims 1 to 3, wherein the repair welding and deformation correction device comprises: the upper surface of the bottom plate (1) is provided with a mounting hole;
a support bottom plate of the support base component (2) is provided with a position-fixing hole;
the position-retaining hole is matched with the mounting hole.
10. A method for repair welding and deformation correction of a longitudinal beam of an military vehicle, which is realized by applying the device and the method for repair welding and deformation correction of the longitudinal beam of the military vehicle as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:
s100: selecting the position of each support base along the trend of the left longitudinal beam and the right longitudinal beam on the bottom plate according to the models of the left longitudinal beam and the right longitudinal beam, and symmetrically arranging a sufficient number of support bases;
s200: determining the number of required adjusting shims by observing the deformation of the longitudinal beam of the vehicle and according to certain theoretical calculation and experience, and then installing the adjusting shims on the corresponding supporting base;
s300: after the adjusting shim is installed, the left longitudinal beam and the right longitudinal beam are placed on the whole clamp and are positioned by the positioning mechanism, the longitudinal beams are firstly supported by the supporting mechanism, and then are adjusted and clamped by the side clamping mechanism and the spiral clamping mechanism;
s400: therefore, the left and right longitudinal beam assemblies are arranged on a set of repair welding fixture, and then repair welding work is carried out;
s500: when the welding clamping device is applied to other vehicle types, the mounting holes of the bottom plate and the corresponding support bases are marked by the labels, the support bases corresponding to the vehicle types are mounted on the mounting holes corresponding to the vehicle types, and the functional requirement that one set of welding clamping device is suitable for various vehicle types is met.
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| CN202011362065.2A CN112536341A (en) | 2020-11-27 | 2020-11-27 | Repair welding and deformation correction device and method for military vehicle longitudinal beam |
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| CN202011362065.2A CN112536341A (en) | 2020-11-27 | 2020-11-27 | Repair welding and deformation correction device and method for military vehicle longitudinal beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494897A (en) * | 2021-06-25 | 2021-10-12 | 郑州日产汽车有限公司 | Detection device for automatically adjusting frame precision and frame detection reference determination method |
| CN114054548A (en) * | 2021-11-11 | 2022-02-18 | 中车长春轨道客车股份有限公司 | Integrated tool for size detection and adjustment and repair of side beam cap barrel and rotating arm mounting seat |
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2020
- 2020-11-27 CN CN202011362065.2A patent/CN112536341A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494897A (en) * | 2021-06-25 | 2021-10-12 | 郑州日产汽车有限公司 | Detection device for automatically adjusting frame precision and frame detection reference determination method |
| CN113494897B (en) * | 2021-06-25 | 2023-07-18 | 郑州日产汽车有限公司 | Automatic adjusting frame precision detection device and frame detection reference determination method |
| CN114054548A (en) * | 2021-11-11 | 2022-02-18 | 中车长春轨道客车股份有限公司 | Integrated tool for size detection and adjustment and repair of side beam cap barrel and rotating arm mounting seat |
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