CN118123363A - Positioning device for side wall outer plate assembly with multiple functions - Google Patents

Abstract

The invention belongs to the technical field of positioning and assembling of side wall outer plate assemblies, and particularly relates to a positioning device and a positioning method for a side wall outer plate assembly with multiple functions; the substrate frame comprises a BASE frame, a lower part fine positioning material opening positioning part, an AGV transferring positioning part and a water-air unit butt joint floating mechanism; the first positioning and clamping mechanism comprises a support, a proximity switch, a positioning block, a guide plate, a clamping cylinder and a rocker arm clamping cylinder; the second positioning and clamping mechanism comprises a support, a positioning pin, a rocker arm and a turnover cylinder; the third positioning and clamping mechanism comprises a support, a connecting plate, a clamping block, a positioning block, a guide plate and a turnover cylinder; the fourth positioning and clamping mechanism comprises a support, a positioning pin, a proximity switch, a clamping block, a positioning block and a clamping cylinder; the positioning mechanism comprises a welding support, a positioning block and a connecting plate; the side wall outer plate assembly accurate positioning lower piece can be realized, and the side wall outer plate assembly accurate positioning upper piece mouth is transported to the main welding main assembly side wall outer plate assembly after manual inspection, gluing and polishing.

Description

Positioning device for side wall outer plate assembly with multiple functions

Technical Field

The invention belongs to the technical field of positioning and assembling of side wall outer plate assemblies, and particularly relates to a positioning device of a side wall outer plate assembly with multiple functions.

Background

The production line of the white car body of the welding workshop adopts an automatic workstation mode to produce, the side wall outer plate assembly needs to be subjected to manual inspection, gluing and polishing after the welding work is completed, the side wall outer plate assembly is transported to a main welding main assembly side wall assembly upper part opening by an AGV after the manual operation is completed, and a robot to be grabbed carries a side wall outer plate frame grabber to grab a part, so that the main welding main assembly work is completed.

After the welding work is completed, the side wall outer plate assembly needs to be manually checked for quality confirmation. Before transferring to the main welding and main assembling station, the side wall outer plate assembly is required to be conveyed to a manual checking, gluing and polishing operation workbench for manual checking, gluing operation and welding spot burr polishing operation. If the part is taken down from the lower part fine positioning device of the side wall outer plate assembly, the manual inspection is placed on the side wall outer plate assembly, the side wall outer plate assembly is transported to the gluing table for gluing after the manual inspection is completed, the side wall outer plate assembly is transported to the polishing table for polishing welding spot burrs after the gluing operation is completed, the part is taken out, the part is placed on the conveying device, the AGV is transported to the part loading table on the main welding and assembling station, the carrying operation of the side wall outer plate assembly is increased for at least five times according to the process, the collision damage probability in the process is increased, additional manual carrying operation is needed, and the efficiency is low.

There is a side wall transfer device among the prior art, including transferring the automobile body and locating the truckle of transferring the automobile body bottom, it has the cavity that holds the side wall to transfer the automobile body, the top surface of cavity is equipped with the suspension mechanism that is used for hanging the side wall, it is equipped with the manipulator of being convenient for along one side of Y axle direction to transfer the automobile body and hangs the side wall into first opening in the cavity, it is equipped with the manipulator of being convenient for along the another side of Y axle direction to transfer the automobile body follow take out the second opening of side wall in the cavity. By means of the structure, the automatic side wall assembly grabbing and transferring device can not only meet the requirement that the side wall assembly part is directly grabbed by the side wall automatic station offline robot and placed on the transferring vehicle body, but also meet the requirement that the main line assembling and transferring robot directly grabs and transfers the upper part from the transferring vehicle body. The upper and lower parts do not need to be manually participated, and an upper (lower) part table does not need to be additionally arranged, so that flexible production is met. However, the prior art scheme cannot firmly fix the side wall assembly, and has no functions of manual inspection, gluing and polishing; the system has no information interaction function with the line body such as vehicle type, process content, sub-assembly category and the like.

The automobile side wall transferring lifting tool comprises a linear bearing, a sliding frame, a guide rod, a clamp guide rail, a lifting tool, a clamp support, clamps and guide rails, wherein the guide rails are arranged on the ground, grooves embedded with the guide rails are formed in the lower ends of supporting legs of the sliding frame, the sliding frame is arranged on the guide rails to do reciprocating motion, the linear bearing is arranged on the top end of a cross beam of the sliding frame, the guide rod is arranged in the linear bearing, the lifting tool is arranged at the lower end of the guide rod, the clamp guide rails are arranged at the two ends of the lifting tool, the clamp supports are respectively arranged on the clamp guide rails, the clamps are arranged at the two ends of the clamp support, the sliding frame adopts embedded grooves, and is stable, quiet and free from shaking in the sliding process, and has the functions of automatic lifting and in-place self-locking. However, the prior art scheme has no manual inspection, gluing and polishing workbench functions; the system has no information interaction function with the line body such as vehicle type, process content, sub-assembly category and the like.

Disclosure of Invention

In order to overcome the problems, the invention provides a positioning device of a side wall outer plate assembly with multiple functions, which can realize the accurate positioning of a lower piece of the side wall outer plate assembly, and is transported to an accurate positioning upper piece opening of a main welding main assembly side wall outer plate assembly after manual inspection, gluing and polishing; the side wall outer plate assembly is prevented from being switched between different working procedures, and the transmission efficiency of the sub-assembly is improved; the probability of surface product damage and surface deformation of the side wall outer plate assembly in the multiple switching process is reduced, and the consistency and qualification rate of the side wall outer plate assembly are ensured.

A positioning device of a side wall outer plate assembly with multiple functions comprises a substrate frame 1, a first positioning and clamping mechanism 2, a second positioning and clamping mechanism 3, a third positioning and clamping mechanism 4, a fourth positioning and clamping mechanism 5 and a positioning mechanism 6;

The BASE plate frame 1 comprises a BASE frame 11, a lower part fine positioning material mouth positioning part 12, an AGV transferring positioning part 13, a water-air unit docking and floating mechanism 14, a balancing weight 16 and a code carrier bracket 17; the lower part fine positioning material hole positioning component 12 and the water-air unit docking and floating mechanism 14 are sequentially fixed on the outer side of the rear end frame of the BASE frame 11 from left to right, the inner side of the rear end frame of the BASE frame 11 is sequentially fixed with a first positioning and clamping mechanism 2, a second positioning and clamping mechanism 3 and a third positioning and clamping mechanism 4 from left to right, the front end frame of the BASE frame 11 is fixed with a balancing weight 16, the frames on the left side and the right side of the BASE frame 11 are respectively fixed with a positioning mechanism 6 and a fourth positioning and clamping mechanism 5, and the BASE frame 11 is also fixed with a code-carrying body bracket 17;

The first positioning and clamping mechanism 2 comprises a first triangular support 21, a first connecting plate 22, a first proximity switch 23, a first positioning block 24, a first guide plate 25, a cylinder support 26, a second positioning block 27, a first clamping cylinder 28 and a rocker arm clamping cylinder 29; the bottom of the first triangle support 21 is fixed between the middle frame and the rear frame of the BASE frame 11 through a fixing plate, a first connecting plate 22 is fixed above the left side of the first triangle support 21, a first proximity switch 23 is fixed at the top of the first connecting plate 22, a rocker clamping cylinder 29 is fixed above the right side, a first positioning block 24 is connected to the clamping end of the rocker clamping cylinder 29, and a first guide plate 25 is fixed above the front end of the first connecting plate 22; the middle part of the front end of the first triangular support 21 is fixed with a cylinder support 26, a first clamping cylinder 28 is fixed at the bottom of the cylinder support 26, and the clamping end of the first clamping cylinder is fixed with a second positioning block 27;

The second positioning and clamping mechanism 3 comprises a second triangular support 31, a first positioning pin 32, a positioning pin seat 33, a second connecting plate 34, a second rocker arm 35, a first overturning cylinder 36, a third connecting plate 37 and a second positioning pin 38; the second triangular support 31 is installed between the middle frame and the rear frame of the BASE frame 11 on the right side of the first triangular support 21, the third connecting plate 37 is fixed on the right side surface of the second triangular support 31, the front end of the third connecting plate is fixed with a second positioning pin 38, the first overturning cylinder 36 is fixed on the top of the second triangular support 31, the clamping end of the first overturning cylinder is fixed with a second rocker 35, the left side of the second rocker 35 is fixed with a second connecting plate 34, and the first positioning pin 32 is connected below the second connecting plate 34 through a positioning pin seat 33;

The third positioning and clamping mechanism 4 comprises a third triangular support 41, a fourth connecting plate 42, a first clamping block 43, a third positioning block 44, a fifth connecting plate 45, a second guide plate 46, a fourth positioning block 47, a fifth positioning block 48 and a second overturning cylinder 49; the third triangular support 41 is arranged in the middle between the middle frame and the rear frame of the BASE frame 11, the fifth connecting plate 45 is fixed on the left side of the top of the third triangular support 41, the fifth positioning block 48 is fixed on the right side of the top of the fifth connecting plate 45, the fourth positioning block 47 is fixed at the front end of the fifth positioning block 48, and the second guide plate 46 is fixed on the top of the front end of the fifth connecting plate 45; the second overturning cylinder 49 is fixed at the lower part of the front end of the third triangular support 41 through a fourth connecting plate 42, a third positioning block 44 is fixed at the front end of the fourth connecting plate 42, and a first clamping block 43 is fixed at the clamping end of the second overturning cylinder 49 and is arranged corresponding to the third positioning block 44;

The fourth positioning and clamping mechanism 5 comprises a fourth triangular support 51, a sixth connecting plate 52, a third positioning pin 53, a pin seat 54, a second proximity switch 55, a second clamping block 56, a sixth positioning block 57, a second clamping cylinder 58 and a connecting support 59; the fourth triangle support 51 is installed at the rear end of the right side frame of the BASE frame 11, the sixth connecting plate 52 is fixed at the front end above the fourth triangle support 51, the third positioning pin 53 is fixed above the front end of the sixth connecting plate 52 through the pin seat 54, the connecting support 59 is fixed at the top of the fourth triangle support 51 above the sixth connecting plate 52, the second clamping cylinder 58 is fixed at the left side of the connecting support 59, the second clamping block 56 is fixed at the clamping end of the second clamping cylinder, and the sixth positioning block 57 is fixed at the right side surface of the connecting support 59 and is arranged corresponding to the second clamping block 56;

The positioning mechanism 6 comprises a welding support 61, a seventh positioning block 62 and a seventh connecting plate 63, wherein the welding support 61 is arranged in the middle of the left side frame of the BASE frame 11, the seventh connecting plate 63 is fixed at the front end above the welding support 61, and the seventh positioning block 62 is fixed at the top of the seventh connecting plate 63.

The first positioning block 24 comprises a first rocker 241, a gasket 242, a clamping block 243, a fixed end positioning block 244, a third connecting plate 245, a proximity switch bracket 246 and a Z-direction positioning block 247; wherein the first rocker arm 241 is fixed at the clamping end of the rocker arm clamping cylinder 29, the clamping block 243 is connected to the first rocker arm 241 through a gasket 242, one end of the fixed end positioning block 244 is fixed on the clamping block 243, and the other end is fixed with a third connecting plate 245; the proximity switch bracket 246 is fixed on the third connecting plate 245, and the first proximity switch 23 is fixed on the third connecting plate 245; the Z-direction positioning block 247 is fixed above the third connecting plate 245.

The positioning mechanism 6 is fixed in the middle of the left side frame of the BASE frame 11, and the fourth positioning and clamping mechanism 5 is fixed at the rear end of the right side frame of the BASE frame 11.

The fourth locating piece 47 is an L-shaped piece, a vertical long piece of the fourth locating piece is fixed at the front end of the fifth locating piece 48, a horizontal short piece is positioned at the front end of the top of the vertical long piece, and a locating surface is arranged on the right side of the horizontal short piece and used for being in flanging contact with the upper edge of the rear door opening of the side wall outer plate assembly part, so that a locating effect is achieved.

The fifth positioning block 48 includes a bottom connecting block 481, an L-shaped positioning block 482 and a second spacer 483, wherein the bottom connecting block 481 is fixed on the right top of the fifth connecting plate 45, a long transverse block of the L-shaped positioning block 482 is fixed on the bottom connecting block 481, and a second spacer 483 is disposed between the long transverse block and the bottom connecting block 481, and a short vertical block is located on the top of the front end of the long transverse block.

The seventh positioning block 62 includes a square block, wherein the front end of the square block is provided with an inclined surface.

The invention has the beneficial effects that:

In the actual production process of a welding workshop, the device for carrying out the work of lower part, upper part, gluing, polishing and transferring of the side wall outer plate assembly is concentrated on one fine positioning device, so that the transfer of the side wall outer plate assembly among different working procedures is reduced, and the transmission efficiency of the sub-assembly is improved; the probability of surface product damage and surface deformation of the side wall outer plate assembly in the multiple switching process is reduced, and the consistency and qualification rate of the side wall outer plate assembly are ensured; the device and the positioning method can accurately position the side wall outer plate after the side wall outer plate is subjected to piece unloading and firmly fix the side wall outer plate on the device, and manually checking, gluing and polishing are concentrated to one device to finish the operation, so that a checking workbench, a gluing workbench and a polishing workbench are replaced, a series of non-value-added actions for switching between different workbenches are reduced, and the working efficiency is improved.

The positioning method is simple and reliable, has strong operability, can effectively improve the working efficiency, reduces the workload of repairing the quality defects of the parts caused by multiple times of switching in the process, and reduces the design and manufacturing cost of various devices for manual inspection, gluing, polishing and transferring.

According to the device, the code carrier bracket is arranged on the substrate frame, through installing the code carrier, the information interaction with the vehicle type information, the process information, the sub-assembly types and the like in the automatic island is completed, and the traceability of the sub-assembly production process is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings to be used in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a substrate frame structure according to the present invention;

FIG. 3 is a schematic view of a first positioning and clamping member mechanism of the present invention;

FIG. 4 is a schematic view of a second positioning and clamping member mechanism of the present invention;

FIG. 5 is a schematic view of a third positioning and clamping member mechanism of the present invention;

FIG. 6 is a schematic view of a fourth positioning and clamping member mechanism of the present invention;

FIG. 7 is a schematic view of a positioning mechanism according to the present invention;

FIG. 8 is a schematic view of a first positioning block structure according to the present invention;

FIG. 9 is a schematic view of a fifth positioning block according to the present invention;

In the figure: 1-a substrate frame; 2-a first positioning clamping component mechanism; 3-a second positioning and clamping component mechanism; 4-a third positioning clamping component mechanism; 5-fourth positioning and clamping part mechanism; 6-a positioning mechanism; an 11-BASE framework; 12-a lower part fine positioning material port positioning part; 13-AGV transport positioning component; 14-the water-air unit is in butt joint with the floating mechanism; 15-valve islands; 16-balancing weight; 17-a code carrier support; 21-a first triangular support; 22-a first connection plate; 23-a first proximity switch; 24-a first positioning block; 25-a first guide plate; 26-cylinder support; 27-a second positioning block; 28-a first clamping cylinder; 29-a rocker arm clamping cylinder; 31-a second triangular support; 32-a first positioning pin; 33-locating pin holders; 34-a second connection plate; 35-a second rocker arm; 36-a first overturning cylinder; 37-a third connection plate; 38-a second locating pin; 41-a third triangular support; 42-a second connection plate; 43-a first clamping block; 44-a third positioning block; 45-a fifth connecting plate; 46-a second guide plate; 47-fourth positioning block; 48-a fifth positioning block; 49-a second overturning cylinder; 51-fourth triangular support; 52-a sixth connecting plate; 53-a third locating pin; 54-pin bosses; 55-a second proximity switch; 56-a second clamping block; 57-sixth locating block; 58-a second clamping cylinder; 59-connecting the support; 61-welding a support; 62-seventh locating block; 63-a seventh connection plate; 241-first rocker arm; 242-a first gasket; 243-clamping blocks; 244-a fixed end positioning block; 245-a third connection plate; 246-proximity switch bracket; 247-Z direction positioning block; 481-bottom connection block; 482-L-shaped positioning blocks; 483-second gasket.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1, a positioning device of a side wall outer plate assembly with multiple functions comprises a substrate frame 1, a first positioning and clamping mechanism 2, a second positioning and clamping mechanism 3, a third positioning and clamping mechanism 4, a fourth positioning and clamping mechanism 5 and a positioning mechanism 6;

As shown in fig. 2, the substrate frame 1 includes a BASE frame 11, a lower part fine positioning material mouth positioning component 12, an AGV transferring positioning component 13, a water-air unit docking and floating mechanism 14, a valve island 15, a counterweight 16 and a code carrier bracket 17; the lower part fine positioning material hole positioning component 12, the water-air unit butting floating mechanism 14 (which is a conventional application component for realizing electric control of a tool), one end of the lower part fine positioning material hole positioning component is connected with the substrate frame 1, one end of the lower part fine positioning material hole positioning component is connected with a gas-electric quick-plug female head of a station fixed end of the lower part fine positioning material hole positioning component, the valve island 15 is sequentially fixed on the outer side of a rear end frame of the BASE frame 11 from left to right, a first positioning clamping mechanism 2, a second positioning clamping mechanism 3 and a third positioning clamping mechanism 4 are sequentially fixed on the inner side of the rear end frame of the BASE frame 11 from left to right, a balancing weight 16 is fixed on the front end frame of the BASE frame 11, a positioning mechanism 6 and a fourth positioning clamping mechanism 5 are respectively fixed on the frames on the left side and the right side of the BASE frame 11, and a carrier bracket 17 is also fixed on the BASE frame 11; the position of the code carrier support 17 is not limited, and the code carrier support is not interfered with other parts;

As shown in fig. 3, the first positioning and clamping mechanism 2 includes a first triangle support 21, a first connecting plate 22, a first proximity switch 23, a first positioning block 24, a first guide plate 25, a cylinder support 26, a second positioning block 27, a first clamping cylinder 28, and a rocker arm clamping cylinder 29; the bottom of the first triangle support 21 is fixed between the middle frame and the rear frame of the BASE frame 11 through a fixing plate, a first connecting plate 22 is fixed above the left side of a connecting rod of the first triangle support 21, a first proximity switch 23 is fixed at the top of the first connecting plate 22, a rocker clamping cylinder 29 is fixed above the right side, a first positioning block 24 is connected to the clamping end of the rocker clamping cylinder 29, and a first guide plate 25 is fixed above the front end of the first connecting plate 22; the middle part of the front end of the connecting rod of the first triangular support 21 is fixed with a cylinder support 26, a first clamping cylinder 28 is fixed at the bottom of the cylinder support 26, and the clamping end of the first clamping cylinder is fixed with a second positioning block 27; the rocker arm clamping cylinder 29 is fixedly connected to the first connecting plate 22 through bolts;

the guide plate 25 is an L-shaped plate and is fixedly connected to the third connecting plate 2 through a bolt, and plays a role in guiding in the Z direction of the triangular window position of the side wall outer plate assembly part in use, so that the side wall outer plate assembly is conveniently and smoothly placed on the device of the invention when being pushed in the Y direction, or the side wall outer plate assembly part is smoothly taken out from the device of the invention and does not interfere with the first positioning and clamping mechanism 2.

When the clamping cylinder 28 works, the clamping end of the clamping cylinder is linked with the second positioning block 27 and the positioning surface of the cylinder support 26 to jointly clamp the position of the lower skirt edge at the rear part of the side wall outer plate assembly part, so that the positioning and clamping effects are achieved; the rocker arm clamping cylinder 29 acts, the clamping block 243 and the fixed end positioning block 244 clamp the upper edge of the middle part of the rear triangular window of the side wall outer plate assembly, the Y direction of the side wall outer plate assembly part on the device is limited, and the stability of the lower end of the rear part is ensured when the part is transported, manually glued and polished.

As shown in fig. 4, the second positioning and clamping mechanism 3 includes a second triangular support 31, a first positioning pin 32, a positioning pin seat 33, a second connecting plate 34, a second rocker arm 35, a first overturning cylinder 36, a third connecting plate 37, and a second positioning pin 38; the second triangular support 31 is mounted between the middle frame and the rear frame of the BASE frame 11 on the right side of the first triangular support 21 through bolts, a third connecting plate 37 is fixed on the right side surface of the second triangular support 31, a second positioning pin 38 is fixed at the front end of the third connecting plate, the first overturning cylinder 36 is fixed on the top of the second triangular support 31, a second rocker arm 35 is fixed at the clamping end of the first overturning cylinder 36, a second connecting plate 34 is fixed on the left side of the second rocker arm 35, and the first positioning pin 32 is connected below the second connecting plate 34 through a positioning pin seat 33;

when the turnover mechanism works, the first turnover cylinder 36 turns over, and the clamping end drives the second rocker arm 35 to act, so that the second connecting plate 34, the positioning pin seat 33 and the first positioning pin 32 are driven to be linked, and the turnover action of the first positioning pin 32 is realized; the second locating pin 38 is a fixed end and is matched with the first locating pin 32, and is respectively matched with two locating holes on the upper side of the rear end in the side wall outer plate assembly part, so that the side wall outer plate assembly is located in the X direction and the Z direction and the limiting effect in the Y direction is realized.

As shown in fig. 5, the third positioning and clamping mechanism 4 includes a third triangular support 41, a fourth connecting plate 42, a first clamping block 43, a third positioning block 44, a fifth connecting plate 45, a second guide plate 46, a fourth positioning block 47, a fifth positioning block 48, and a second turning cylinder 49; the third triangular support 41 is mounted in the middle between the middle frame and the rear frame of the BASE frame 11 through bolts, the fifth connecting plate 45 is fixed on the left side of the top of the connecting rod of the third triangular support 41, the fifth positioning block 48 is fixed on the right side of the top of the fifth connecting plate 45, the fourth positioning block 47 is fixed at the front end of the fifth positioning block 48, and the second guide plate 46 is fixed on the top of the front end of the fifth connecting plate 45 and is used for guiding the side wall outer plate assembly on the rear door opening along the Y direction; the second overturning cylinder 49 is fixed on the lower part of the front end of the connecting rod of the third triangular support 41 through a fourth connecting plate 42 (the fourth connecting plate 42 is fixed on the lower part of the front end of the third triangular support 41 through bolts), the second overturning cylinder 49 is fixed on the lower part of the front end of the connecting rod of the third triangular support 41 through bolts, a third positioning block 44 is fixed on the front end of the fourth connecting plate 42 through bolts, and a first clamping block 43 is fixed on the clamping end of the second overturning cylinder 49 through bolts and is arranged corresponding to the third positioning block 44;

The third positioning block 44 is a fixed side in operation, the first clamping block 43 is a movable clamping side, and the second overturning cylinder 49 overturns to drive the clamping end of the first clamping block 43 to overturn, so that the first clamping block 43 and the third positioning block 44 are driven to clamp, and the positioning and clamping of the tooth edge below the rear door opening of the side wall outer plate assembly part in the Y direction are realized.

As shown in fig. 6, the fourth positioning and clamping mechanism 5 includes a fourth triangular support 51, a sixth connecting plate 52, a third positioning pin 53, a pin seat 54, a second proximity switch 55, a second clamping block 56, a sixth positioning block 57, a second clamping cylinder 58, and a connecting support 59; the fourth triangle support 51 is mounted at the rear end of the right side frame of the BASE frame 11 through bolts, the sixth connecting plate 52 is fixed at the front end above the fourth triangle support 51, the third positioning pin 53 is fixed above the front end of the sixth connecting plate 52 through a pin seat 54, a connecting support 59 is fixed at the top of the fourth triangle support 51 above the sixth connecting plate 52, the second clamping cylinder 58 is fixed at the left side of the connecting support 59, the clamping end of the second clamping cylinder is fixed with a second clamping block 56, and the sixth positioning block 57 is fixed at the right side surface of the connecting support 59 through bolts and is arranged corresponding to the second clamping block 56;

When the clamping device is used, the third locating pin 53 is connected with a locating hole at the middle lower part of the column A of the side wall outer plate assembly part, the X-direction and Z-direction locating and Y-direction limiting of the side wall outer plate assembly part are realized, and the second clamping cylinder 58 drives the clamping end to clamp, so that the second clamping block 56 aligns with the sixth locating block 57 to clamp the flange of the front door opening at the middle part of the column A of the side wall outer plate assembly.

As shown in fig. 7, the positioning mechanism 6 includes a welding support 61, a seventh positioning block 62, and a seventh connecting plate 63, wherein the welding support 61 is mounted in the middle of the left side frame of the BASE frame 11 by bolts, the seventh connecting plate 63 is fixed at the front end above the welding support 61, and the seventh positioning block 62 is fixed at the top of the seventh connecting plate 63.

When the connecting plate is used, the seventh connecting plate 63 is used for fixing the seventh positioning block 62 by bolts, and the seventh positioning block is not contacted with the side wall outer plate assembly part; the upper surface and the inclined side surface of the seventh positioning block 62 are respectively contacted with the side surface and the upper surface of the skirt edge at the lower part of the rear part of the side wall outer plate assembly in the working process, so that the supporting and positioning effects are realized.

As shown in fig. 8, the first positioning block 24 includes a first rocker 241, a gasket 242, a clamping block 243, a fixed end positioning block 244, a third connecting plate 245, a proximity switch bracket 246, and a Z-direction positioning block 247; wherein the first rocker arm 241 is fixed at the clamping end of the rocker arm clamping cylinder 29, the clamping block 243 is connected to the first rocker arm 241 through a gasket 242, and the position accuracy of the clamping block 243 can be adjusted by adjusting the thickness of the gasket 242; the clamping block 243 and the fixed end positioning block 244 are used for clamping and positioning the middle upper edge of the triangular window between the C column and the D column of the side wall outer plate assembly, and ensuring the positioning and stability of the middle rear part of the side wall outer plate assembly in the Y direction in the processes of transferring, gluing and polishing; one end of the fixed end positioning block 244 is fixed on the clamping block 243, and the other end is fixed with a third connecting plate 245; the proximity switch bracket 246 is fixed on the third connecting plate 245 by bolts, and the first proximity switch 23 is fixed on the third connecting plate 245; the Z-direction positioning block 247 is fixed above the third connecting plate 245 by bolts, and plays a role in Z-direction supporting of the flanging at the upper part of the side wall outer plate assembly part in use.

The positioning mechanism 6 is fixed in the middle of the left side frame of the BASE frame 11, and the fourth positioning and clamping mechanism 5 is fixed at the rear end of the right side frame of the BASE frame 11.

The fourth locating piece 47 is an L-shaped piece, a vertical long piece of the fourth locating piece is fixed at the front end of the fifth locating piece 48, a horizontal short piece is positioned at the front end of the top of the vertical long piece, and a locating surface is arranged on the right side of the horizontal short piece and used for being in flanging contact with the upper edge of the rear door opening of the side wall outer plate assembly part, so that a locating effect is achieved.

As shown in fig. 9, the fifth positioning block 48 includes a bottom connecting block 481, an L-shaped positioning block 482 and a second spacer 483, wherein the bottom connecting block 481 is fixed on the top of the right side of the fifth connecting plate 45, the long transverse block of the L-shaped positioning block 482 is fixed on the bottom connecting block 481, and the second spacer 483 is disposed between the long transverse block and the bottom connecting block 481, and the short vertical block is located on the top of the front end of the long transverse block. The height of the top locating surface of the L-shaped locating block 482 is adjusted by adjusting the number and thickness of the second gaskets 483.

The seventh positioning block 62 includes a square block, wherein a stepped inclined surface is provided at a front end of the square block. The inclination angle and the direction of the inclined plane are consistent with the lower edge molded surface of the side wall outer plate assembly product, and the inclined plane is used for positioning the lower edge molded surface of the rear part of the side wall outer plate assembly, mainly in the Y direction and in the X direction, so that the rear part of the side wall outer plate assembly is prevented from tilting to the side of the device along the skirt edge.

The working flow of the device in the production process is as follows:

The method comprises the steps of completing production of a welding island, grabbing the side wall outer plate assembly from a welding clamp by a robot holding gripping device, placing the side wall outer plate assembly in the device by the robot, positioning and clamping the device, manually checking the side wall outer plate assembly on the device, manually gluing the side wall outer plate assembly on the device, manually polishing burrs on the side wall outer plate assembly on the device, conveying the side wall outer plate assembly to a main welding main assembly feeding hole station by an AGV carrying the device, positioning the device at the feeding hole, opening a cylinder of the device, and grabbing the side wall outer plate assembly by the main welding main assembly station robot carrying the gripping device. The specific contents are as follows:

before use, after the welding of the side wall outer plate assembly is completed in the actual production process of the welding workshop, the side wall outer plate assembly needs to be taken down from the corresponding welding tool by a robot holding gripping device and is gripped and placed on the device of the invention waiting for receiving the workpiece in the fine positioning material port of the workpiece discharging platform.

The device of the invention precisely positions the material opening through the material opening positioning part 12 of the lower part on the substrate frame 1 and the material opening of the lower part table, and can be connected with electric signals and gas path control information through the water-gas unit butt joint floating mechanism 14 on the substrate frame 1, and after the parts are detected to be in place through the first proximity switch 23 on the first positioning and clamping mechanism 2 and the second proximity switch 55 on the fourth positioning and clamping mechanism 5, the first clamping cylinder 28, the rocker arm clamping cylinder 29 on the first positioning and clamping mechanism 2, the first overturning cylinder 36 on the second positioning and clamping mechanism 3, the second overturning cylinder 49 on the third positioning and clamping mechanism 4 and the second clamping cylinder 58 on the fourth positioning and clamping mechanism 5 are closed, so that the side wall outer plate assembly is precisely and firmly positioned on the device of the invention; the method comprises the following steps:

The first positioning pin 32 on the second positioning and clamping mechanism 3 and the third positioning pin 53 on the fourth positioning and clamping mechanism 5 are respectively matched with the positioning hole at the middle lower part of the column A and the positioning hole at the middle upper part of the column C of the side wall outer plate assembly part.

The guide plate 25 plays a guiding role in the Z direction of the triangular window position of the side wall outer plate assembly part, so that the side wall outer plate assembly is conveniently and smoothly placed on the device of the invention when being pushed in the Y direction, or the side wall outer plate assembly part is smoothly taken out from the device of the invention and does not interfere with the first positioning and clamping mechanism 2.

The second locating pin 38 is a fixed end and is matched with the first locating pin 32, and is respectively matched with two locating holes on the upper side of the rear end in the side wall outer plate assembly part, so that the side wall outer plate assembly is located in the X direction and the Z direction and the limiting effect in the Y direction is realized.

The second guide plate 46 is fixed on the top of the front end of the fifth connecting plate 45 and is used for guiding the rear door opening of the side wall outer plate assembly along the Y direction.

The third locating pin 53 is connected with a locating hole at the middle upper part of the C column of the side wall outer plate assembly part, so that the X-direction and Z-direction locating and Y-direction limiting of the side wall outer plate assembly part are realized, and the seventh connecting plate 63 is not contacted with the side wall outer plate assembly part; the upper surface and the inclined side surface of the seventh positioning block 62 are respectively contacted with the side surface and the upper surface of the skirt edge at the lower side of the rear part of the side wall outer plate assembly, so as to play a role in supporting and positioning.

The position accuracy of the clamping block 243 can be adjusted by adjusting the thickness of the spacer 242; the clamping block 243 and the fixed end positioning block 244 are used for clamping and positioning the middle upper edge of the triangular window between the C column and the D column of the side wall outer plate assembly, and ensuring the positioning and stability of the middle rear part of the side wall outer plate assembly in the Y direction in the processes of transferring, gluing and polishing; the Z-direction positioning block 247 is fixed above the third connecting plate 245 by bolts, and plays a role in Z-direction supporting of the flanging at the upper part of the side wall outer plate assembly part in use. The first clamping cylinder 28 acts, and the clamping end of the first clamping cylinder is linked with the positioning clamping surfaces of the second positioning block 27 and the first clamping cylinder 28 to close so as to clamp the upper middle edge of the triangular window between the C column and the D column of the side wall outer plate assembly.

The second overturning cylinder 49 overturns to drive the clamping end of the side wall outer plate assembly part to overturn, the second overturning cylinder 49 acts to drive the first clamping block 43 and the third positioning block 44 to be closed, so that the first clamping block 43 and the third positioning block 44 are driven to clamp, and the positioning and clamping of the tooth edge below the rear door opening of the side wall outer plate assembly part in the Y direction are realized.

The second clamping cylinder 58 drives the clamping end to clamp, so that the second clamping block 56 is aligned with the sixth positioning block 57 to clamp the flanging of the front door opening in the middle of the pillar A of the side wall outer plate assembly.

The positioning surface on the right side of the transverse short block of the fourth positioning block 47 is used for being in contact with the upper edge flanging of the rear door opening of the side wall outer plate assembly part, so that the positioning function is achieved.

And meanwhile, the code carrier bracket 17 fixed on the base plate frame 1 carries the code carrier, and carries out information transmission with a main welding station through information reading and writing of a material port of a precision positioning of a lower part table, and after the welding work of the side wall outer plate assembly of the corresponding vehicle type in the process is identified, the next process content is executed.

The AGV carries the device to leave the blanking opening, stays at a manual station, and an operator can finish manual inspection, gluing and welding spot burr polishing work on the substrate frame 1 of the device; after a series of manual operations are completed, the work completion information is transmitted to the AGV through a button, and the AGV transfers the device belt to a workpiece feeding table fine positioning material port of a main welding station side wall outer plate assembly; after the positioning of the device is finished through the blanking piece fine positioning material inlet positioning component 12 and the material inlet positioning tool, the main welding station robot holds a gripping device to take out the side wall outer plate assembly. After the gripping apparatus is in place, a first clamping cylinder 28, a rocker arm clamping cylinder 29, a first overturning cylinder 36, a second overturning cylinder 49 and a second clamping cylinder 58 on a first positioning and clamping mechanism 2, a second positioning and clamping mechanism 3, a third positioning and clamping mechanism 4 and a fourth positioning and clamping mechanism 5 of the device are opened, and a robot grips the side wall outer plate assembly; the method comprises the following steps:

the first clamping cylinder 28 acts, the clamping end of the first clamping cylinder is linked with the second positioning block 27 to be opened with the positioning clamping surface of the first clamping cylinder 28, the rocker arm clamping cylinder 29 acts, and the clamping block 243 is opened with the fixed end positioning block 244;

The first overturning cylinder 36 overturns, and drives the second rocker arm 35 to act through the clamping end, so that the second connecting plate 34, the locating pin seat 33 and the first locating pin 32 are driven to be linked, the overturning action of the first locating pin 32 is realized, the first locating pin 32 is withdrawn from the matching position of the locating hole at the middle lower part of the A column of the side wall outer plate assembly part, and the robot of the main welding main assembling station is convenient to carry the side wall outer plate assembly frame grabber to take away the part.

When the main welding main assembly station robot carries the grabbing piece of the side wall outer plate assembly frame grabber, the third locating pin 53 on the fourth locating and clamping mechanism 5 withdraws from the matching position of the locating hole at the upper middle part of the C column of the side wall outer plate assembly part.

The second overturning cylinder 49 overturns to drive the clamping ends of the first overturning cylinder to overturn, so that the first clamping block 43 and the third positioning block 44 are driven to be opened, and the main welding and main assembling station robot is convenient to carry the side wall outer plate assembly frame gripper to take away the parts.

The second clamping cylinder 58 drives the clamping end to open, so that the second clamping block 56 and the sixth positioning block 57 are clamped and positioned to open at the flanging of the front door opening in the middle of the column A of the side wall outer plate assembly, and the main welding and main assembling station robot is convenient to carry the side wall outer plate assembly frame gripper to take away the parts.

The frame gripping apparatus of the main welding and assembling station robot carries the side wall outer plate assembly to take away the side wall outer plate assembly, and the side wall outer plate assembly and the car body are assembled and assembled.

Example 2

As shown in fig. 1, a positioning device for a side wall outer panel assembly with multiple functions includes: a substrate frame 1, a first positioning and clamping mechanism 2, a second positioning and clamping mechanism 3, a third positioning and clamping mechanism 4, a fourth positioning and clamping mechanism 5 and a positioning mechanism 6.

The BASE plate frame 1 comprises a BASE frame 11, a lower part fine positioning material mouth positioning part 12, an AGV transferring positioning part 13, a water-air unit butt joint floating mechanism 14, a valve island 15, a balancing weight 16 and a code carrier bracket 17.

The first positioning and clamping mechanism 2 is mounted on the upper surface of the BASE frame 11 of the substrate frame 1 through bolts, and the first positioning and clamping mechanism 2 comprises a first triangular support 21, a first connecting plate 22, a first proximity switch 23, a first positioning block 24, a first guide plate 25, a cylinder support 26, a second positioning block 27, a first clamping cylinder 28 and a rocker arm clamping cylinder 29.

The first positioning block 24 and the second positioning block 27 are made of nylon materials, so that the side wall outer plates are prevented from being knocked during positioning and cylinder clamping. The first guide plate 25 plays a guiding role in the process of grabbing and placing the side wall outer plate assembly by the upper part robot and the lower part robot.

The second positioning and clamping mechanism 3 is mounted on the upper surface of the BASE frame 11 of the substrate frame 1 through bolts, and the second positioning and clamping mechanism 3 comprises a second triangular support 31, a first positioning pin 32, a positioning pin seat 33, a second connecting plate 34, a second rocker arm 35, a first overturning cylinder 36, a third connecting plate 37 and a second positioning pin 38.

The third positioning and clamping mechanism 4 is mounted on the upper surface of the BASE frame 11 of the substrate frame 1 through bolts, and the third positioning and clamping mechanism 4 comprises a third triangular support 41, a fourth connecting plate 42, a first clamping block 43, a third positioning block 44, a fifth connecting plate 45, a second guide plate 46, a fourth positioning block 47, a fifth positioning block 48 and a second overturning cylinder 49. The third positioning block 44 and the first clamping block 43 are matched for use after being clamped by the second overturning cylinder 49, the fourth positioning block 47 and the fifth positioning block 48 respectively position the Z direction and the Y direction, and the second guide plate 46 plays a guiding role in the process of unloading and loading the side wall outer plate assembly. The fourth positioning block 47 and the fifth positioning block 48 are made of nylon materials, so that the side wall outer plates are prevented from being knocked during positioning and cylinder clamping.

The fourth positioning and clamping mechanism 5 is mounted on the upper surface of the BASE frame 11 of the substrate frame 1 through bolts, and the fourth positioning and clamping mechanism 5 comprises a fourth triangular support 51, a sixth connecting plate 52, a third positioning pin 53, a pin seat 54, a second proximity switch 55, a second clamping block 56, a sixth positioning block 57, a second clamping cylinder 58 and a connecting support 59.

The positioning mechanism 6 is mounted on the upper surface of the BASE frame 11 of the BASE frame 1 through bolts, and the positioning mechanism 6 comprises a welding support 61, a seventh positioning block 62 and a seventh connecting plate 63, wherein the seventh positioning block 62 is made of nylon material and is used for preventing the side wall outer plate from being knocked in the positioning process.

The substrate frame 1 in the device integrates three positioning functions, an information interaction realization electric control function and a manual operation platform function;

the three positioning functions comprise: positioning with a lower part fine positioning material port of the side wall outer plate assembly is realized by a lower part fine positioning material port positioning component 12; the AGV transferring and positioning part 13 is used for realizing the AGV transferring and positioning; the positioning of the upper part fine positioning material opening of the side wall outer plate assembly is realized by a positioning part 12 of the lower part fine positioning material opening.

The electronic control function is realized by reading and writing information of a carrier and a line RFID read-write set-change carried by an information exchange overload code body bracket 17, a carrier water-gas unit docking and floating mechanism 14 is connected with a gas circuit and an electronic control signal, whether parts are in place or leave is detected by a first proximity switch 23 and a second proximity switch 55, and the clamping and positioning actions of the device are completed by five cylinders; the substrate frame 1 itself provides manual operation platform, and balancing weight 16 wherein can carry out reasonable design according to size, weight, focus position of product part, guarantees substrate frame 1's stability.

The positioning and clamping component structure 12, the second positioning and clamping mechanism 3, the third positioning and clamping mechanism 4, the fourth positioning and clamping mechanism 5 and the positioning mechanism 6 are combined for use in the device, so that the side wall outer plate assembly is firmly positioned in the transferring process, the damage to the surface product caused by collision in the transferring process is avoided, the stability and the non-shaking of the side wall outer plate assembly are ensured during manual operation detection, gluing and polishing, and the high-quality completion of manual operation is ensured. Meanwhile, the first positioning pin 32, the second positioning pin 38 and the third positioning pin 53 on the fourth positioning and clamping mechanism 5 on the second positioning and clamping mechanism 3 realize the accurate positioning of the side wall outer plate assembly on the device, ensure the position precision of the device when the device and the side wall outer plate assembly accurately position the material opening lower part and the upper part, and provide repeated position precision guarantee for the robot holding gripping device to grip and release the parts.

The first guide plate 25 on the positioning and clamping component structure 12 and the second guide plate 46 on the third positioning and clamping mechanism 4 in the device play a guiding role in the process of assembling and disassembling the side wall outer plate assembly.

In the device, the first positioning block 24, the second positioning block 27 on the positioning and clamping part structure 12, the third positioning block 44, the fourth positioning block 47 and the fifth positioning block 48 on the third positioning and clamping mechanism 4, and the seventh positioning block 62 on the positioning mechanism 6 are all made of nylon materials, so that the side wall outer plates are prevented from being knocked in the positioning process, and meanwhile, the profile positioning function is realized.

In the actual production process of a welding workshop, the device for carrying out the work of lower part, upper part, gluing, polishing and transferring of the side wall outer plate assembly is concentrated on one fine positioning device, so that the transfer of the side wall outer plate assembly among different working procedures is reduced, and the transmission efficiency of the sub-assembly is improved; the probability of surface product damage and surface deformation of the side wall outer plate assembly in the multiple switching process is reduced, and the consistency and qualification rate of the side wall outer plate assembly are ensured; the device and the positioning method can accurately position the side wall outer plate after the side wall outer plate is subjected to piece unloading and firmly fix the side wall outer plate on the device, and manually checking, gluing and polishing are concentrated to one device to finish the operation, so that a checking workbench, a gluing workbench and a polishing workbench are replaced, a series of non-value-added actions for switching between different workbenches are reduced, and the working efficiency is improved. The positioning method is simple and reliable, has strong operability, can effectively improve the working efficiency, reduces the workload of repairing the quality defect of the part caused by multiple times of transfer in the process, and reduces the design and manufacturing cost of a plurality of devices of manual inspection, gluing, polishing and transferring; according to the device, the code carrier bracket is arranged on the substrate frame, through installing the code carrier, the information interaction with the vehicle type information, the process information, the sub-assembly types and the like in the automatic island is completed, and the traceability of the sub-assembly production process is realized.

The scheme and thought provided by the device and the method can be expanded to other assemblies with similar requirements for application, such as a side wall inner plate assembly, a top cover beam assembly, a top cover assembly and the like. Through integrating multiple functions to a device, reduce the quality damage that the process was transported and bring, ensure part quality, improve work efficiency. The positioning size of the substrate frame, the positioning blocks of the positioning and clamping parts and the structure of the connecting plate are adjusted, so that the flexible production can be adapted to various assembly applications and realized. Through the design of the support of the carrier, the interaction with information such as the wire body and the AGV aiming at the vehicle type, the process content, the sub-assembly type and the like is realized.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the scope of the present invention is not limited to the specific details of the above embodiments, and within the scope of the technical spirit of the present invention, any person skilled in the art may apply equivalent substitutions or alterations to the technical solution of the present invention and the inventive concept thereof within the scope of the technical spirit of the present invention, and these simple modifications are all within the scope of the present invention.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.

Claims (6)

1. The positioning device of the side wall outer plate assembly with multiple functions is characterized by comprising a substrate frame (1), a first positioning and clamping mechanism (2), a second positioning and clamping mechanism (3), a third positioning and clamping mechanism (4), a fourth positioning and clamping mechanism (5) and a positioning mechanism (6);

The BASE plate frame (1) comprises a BASE frame (11), a lower part fine positioning material opening positioning component (12), an AGV transferring positioning component (13), a water-air unit butt joint floating mechanism (14), a balancing weight (16) and a code carrier bracket (17); the lower part fine positioning material hole positioning component (12) and the water-air unit butt joint floating mechanism (14) are sequentially fixed on the outer side of the frame at the rear end of the BASE frame (11) from left to right, the inner side of the frame at the rear end of the BASE frame (11) is sequentially fixed with a first positioning and clamping mechanism (2), a second positioning and clamping mechanism (3) and a third positioning and clamping mechanism (4) from left to right, the frame at the front end of the BASE frame (11) is fixed with a balancing weight (16), the frames at the left side and the right side of the BASE frame (11) are respectively fixed with a positioning mechanism (6) and a fourth positioning and clamping mechanism (5), and the BASE frame (11) is also fixed with a code carrier bracket (17);

The first positioning and clamping mechanism (2) comprises a first triangular support (21), a first connecting plate (22), a first proximity switch (23), a first positioning block (24), a first guide plate (25), a cylinder support (26), a second positioning block (27), a first clamping cylinder (28) and a rocker arm clamping cylinder (29); the bottom of the first triangle support (21) is fixed between the middle frame and the rear frame of the BASE frame (11) through a fixing plate, a first connecting plate (22) is fixed above the left side of the first triangle support (21), a first proximity switch (23) is fixed at the top of the first connecting plate (22), a rocker arm clamping cylinder (29) is fixed above the right side, a first positioning block (24) is connected to the clamping end of the rocker arm clamping cylinder (29), and a first guide plate (25) is fixed above the front end of the first connecting plate (22); the middle part of the front end of the first triangular support (21) is fixed with a cylinder support (26), a first clamping cylinder (28) is fixed at the bottom of the cylinder support (26), and the clamping end of the first clamping cylinder is fixed with a second positioning block (27);

The second positioning and clamping mechanism (3) comprises a second triangular support (31), a first positioning pin (32), a positioning pin seat (33), a second connecting plate (34), a second rocker arm (35), a first overturning cylinder (36), a third connecting plate (37) and a second positioning pin (38); the second triangular support (31) is arranged between the middle frame and the rear frame of the BASE frame (11) on the right side of the first triangular support (21), a third connecting plate (37) is fixed on the right side face of the second triangular support (31), a second locating pin (38) is fixed at the front end of the third connecting plate, a first overturning cylinder (36) is fixed at the top of the second triangular support (31), a second rocker arm (35) is fixed at the clamping end of the first overturning cylinder, a second connecting plate (34) is fixed on the left side of the second rocker arm (35), and the first locating pin (32) is connected below the second connecting plate (34) through a locating pin seat (33);

The third positioning and clamping mechanism (4) comprises a third triangular support (41), a fourth connecting plate (42), a first clamping block (43), a third positioning block (44), a fifth connecting plate (45), a second guide plate (46), a fourth positioning block (47), a fifth positioning block (48) and a second overturning cylinder (49); the third triangular support (41) is arranged in the middle between the middle frame and the rear frame of the BASE frame (11), a fifth connecting plate (45) is fixed on the left side of the top of the third triangular support (41), a fifth positioning block (48) is fixed on the right side of the top of the fifth connecting plate (45), a fourth positioning block (47) is fixed at the front end of the fifth positioning block (48), and a second guide plate (46) is fixed at the top of the front end of the fifth connecting plate (45); the second overturning cylinder (49) is fixed at the lower part of the front end of the third triangular support (41) through a fourth connecting plate (42), a third positioning block (44) is fixed at the front end of the fourth connecting plate (42), and a first clamping block (43) is fixed at the clamping end of the second overturning cylinder (49) and is arranged corresponding to the third positioning block (44);

The fourth positioning and clamping mechanism (5) comprises a fourth triangular support (51), a sixth connecting plate (52), a third positioning pin (53), a pin seat (54), a second proximity switch (55), a second clamping block (56), a sixth positioning block (57), a second clamping cylinder (58) and a connecting support (59); the fourth triangular support (51) is arranged at the rear end of the right side frame of the BASE framework (11), the sixth connecting plate (52) is fixed at the front end above the fourth triangular support (51), the third positioning pin (53) is fixed above the front end of the sixth connecting plate (52) through the pin seat (54), the connecting support (59) is fixed at the top of the fourth triangular support (51) above the sixth connecting plate (52), the second clamping cylinder (58) is fixed at the left side of the connecting support (59), the second clamping block (56) is fixed at the clamping end of the second clamping cylinder, and the sixth positioning block (57) is fixed at the right side surface of the connecting support (59) and is correspondingly arranged with the second clamping block (56);

The positioning mechanism (6) comprises a welding support (61), a seventh positioning block (62) and a seventh connecting plate (63), wherein the welding support (61) is arranged in the middle of the left side frame of the BASE frame (11), the seventh connecting plate (63) is fixed at the front end above the welding support (61), and the seventh positioning block (62) is fixed at the top of the seventh connecting plate (63).

2. The positioning device for the side wall outer plate assembly with multiple functions according to claim 1, wherein the first positioning block (24) comprises a first rocker arm (241), a gasket (242), a clamping block (243), a fixed end positioning block (244), a third connecting plate (245), a proximity switch bracket (246) and a Z-direction positioning block (247); the first rocker arm (241) is fixed at the clamping end of the rocker arm clamping cylinder (29), the clamping block (243) is connected to the first rocker arm (241) through a gasket (242), one end of the fixed end positioning block (244) is fixed on the clamping block (243), and the other end is fixed with a third connecting plate (245); the proximity switch bracket (246) is fixed on the third connecting plate (245), and the first proximity switch (23) is fixed on the third connecting plate (245); the Z-direction positioning block (247) is fixed above the third connecting plate (245).

3. The positioning device for the multifunctional side wall outer plate assembly according to claim 1, wherein the positioning mechanism (6) is fixed at the middle part of a left side frame of the BASE frame (11), and the fourth positioning and clamping mechanism (5) is fixed at the rear end of a right side frame of the BASE frame (11).

4. The positioning device for the side wall outer plate assembly with multiple functions according to claim 1, wherein the fourth positioning block (47) is an L-shaped block, a vertical long block of the fourth positioning block is fixed at the front end of the fifth positioning block (48), a horizontal short block is positioned at the front end of the top of the vertical long block, and a positioning surface is arranged on the right side of the horizontal short block and is used for being in contact with the upper edge flanging of the rear door opening of the side wall outer plate assembly part to play a positioning role.

5. The positioning device for the side wall outer plate assembly with multiple functions according to claim 1, wherein the fifth positioning block (48) comprises a bottom connecting block (481), an L-shaped positioning block (482) and a second gasket (483), wherein the bottom connecting block (481) is fixed at the top of the right side of the fifth connecting plate (45), a transverse long block of the L-shaped positioning block (482) is fixed on the bottom connecting block (481), and a second gasket (483) is arranged between the transverse long block and the bottom connecting block (481), and the vertical short block is positioned at the top of the front end of the transverse long block.

6. The multifunctional side wall outer panel assembly positioning device according to claim 1, wherein the seventh positioning block (62) comprises a square block, and an inclined surface is arranged at the front end of the square block.