A garbage truck loader assembly welding device and welding method thereof

Abstract

The present invention proposes a garbage truck loader assembly welding device and a welding method thereof, comprising: a rear sealing cover plate welding fixture, comprising a fixture plate, the top of which is respectively provided with a lifting arm positioning device, a reinforcing plate positioning device, an upper crossbeam positioning device, a lower crossbeam positioning device, a middle longitudinal beam positioning device and a side longitudinal beam positioning device; a side wall seat shaft welding fixture, comprising a hanger plate, both sides of which are provided with triangular positioning frames, and the bottom of the triangular positioning frame is provided with an adjustment positioning rod; a side cover welding fixture, comprising a side cover mounting assembly, a hinge mounting frame and a positioning plate, the hinge mounting frame is used to position the hinge, and the positioning plate is used to position the upper cover assembly, the middle cover assembly and the lower cover assembly, thereby, the present invention has the advantage of improved welding accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of garbage truck fillers, and in particular relates to a garbage truck filler assembly welding device and a welding method thereof. Background Art

[0002] The garbage rear sealing cover plate assembly is a product appearance performance component. The main function of this component is to block the leakage of garbage before and after the operation. It includes the lifting arm body, the reinforcement plate body, the upper beam body, the lower beam body, the middle longitudinal beam body and the side longitudinal beam body. The lifting arm body is provided with a slewing hole. Before the operation, the cylinder drives the cover plate to lift the arm body, and the lifting arm body drives the rear sealing cover plate to lift to the loading state. After the garbage loading operation is completed, the operating switch is lowered and closed. The lifting arm body's rotation center and the cylinder mounting hole center position dimensions are particularly important. They belong to the key parts assembly and key welding process of this assembly welding process. The deviation of the dimensions during the welding process will directly lead to a decrease in the assembly type, interchangeability and operation efficiency of the assembly.

[0003] The existing welding process of the rear sealing cover plate assembly of garbage trucks has two main shortcomings: 1. There is no effective coaxiality detection and guarantee process equipment on both sides of the lifting arm rotation hole and the cylinder mounting hole during the welding process; 2. The coaxiality of the cylinder mounting seats on the left and right sides of the loader is poor, affecting the operating efficiency.

[0004] The manipulator assembly of the garbage truck is a key performance component of the product. The main function of this component is to drive the side wall assembly through the hydraulic cylinder, and the side wall assembly lifts the bucket hanging device, which drives the garbage can (large and small garbage can) to flip to achieve the purpose of loading garbage. The installation of the side wall seat shaft assembly is particularly important. It belongs to the key component assembly and key welding process. The deviation of the size during the welding process will directly lead to a decrease in product performance experience.

[0005] The existing garbage truck manipulator side wall seat shaft assembly welding process has two main shortcomings: 1. There is no effective coaxiality detection and guaranteed process equipment on both sides of the welding process; 2. Due to the height error of the chassis, the height of the bucket rack hook has an error from the horizontal ground.

[0006] The main function of the garbage truck side cover assembly is to shield the inner parts such as the action cylinder, hydraulic pipeline, electrical wiring harness and bracket. It protects the inner parts and key performance parts while improving the appearance quality of the whole vehicle. Therefore, the installation of the side cover assembly is particularly important, which belongs to the key appearance parts assembly, key welding and assembly process.

[0007] There are two main problems in the existing welding and installation process of the side cover assembly of garbage trucks. 1. There is no effective process equipment to guarantee the welding process, which requires manual one-to-one matching and welding to the upper assembly; 2. Due to the welding error, the component assembly cannot be mass-produced and cached, and the matching and welding process takes up time in the subsequent process, reducing work efficiency. Summary of the invention

[0008] The present invention provides a garbage truck filler assembly welding device and a welding method thereof, which solve the above problems.

[0009] The technical solution of the present invention is implemented as follows: a garbage truck loader assembly welding device, comprising:

[0010] The rear sealing cover plate assembly welding tool comprises a tool plate, the top of which is respectively provided with a lifting arm positioning device, a reinforcement plate positioning device, an upper crossbeam positioning device, a lower crossbeam positioning device, a middle longitudinal beam positioning device and a side longitudinal beam positioning device;

[0011] The side wall seat shaft assembly welding tool comprises a hanger plate, two sides of which are provided with triangular positioning frames, and the bottom of which is provided with an adjusting positioning rod;

[0012] The side cover welding tooling comprises a side cover mounting assembly, a hinge mounting frame and a positioning plate assembly, wherein the hinge mounting frame is used for positioning the hinge, and the positioning plate assembly is used for positioning the upper cover assembly, the middle cover assembly and the lower cover assembly.

[0013] As a preferred embodiment, the lifting arm positioning device is arranged on the front side of the tooling plate, the lifting arm positioning device includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate, the lifting arm positioning device includes a first lifting arm positioning plate and a second lifting arm positioning plate, the second lifting arm positioning plate is arranged on the inner side of the first lifting arm positioning plate, and the first lifting arm positioning plate and the second lifting arm positioning plate are connected by a positioning pin shaft;

[0014] The length of the first lifting arm positioning plate is greater than that of the second lifting arm positioning plate, the lifting arm body and the inner side wall of the first lifting arm positioning plate are in contact with each other, and the upper cross beam body and the rear side wall of the second lifting arm positioning plate are in contact with each other;

[0015] The reinforcing plate positioning device is arranged at the rear side of the lifting arm positioning device, and the reinforcing plate positioning device includes a reinforcing plate positioning block. The reinforcing plate positioning block includes two identical ones, which are respectively arranged at the left and right ends of the tooling plate, and the outer side surface of the reinforcing plate body and the inner side surface of the reinforcing plate positioning block are abutted against each other.

[0016] As a preferred embodiment, the upper beam positioning device is arranged on the inner side of the lifting arm positioning device, and the upper beam positioning device includes an upper beam positioning block, and the upper beam positioning block includes two identical blocks, and the top surface of the upper beam body and the bottom surface of the upper beam positioning block are in contact with each other;

[0017] The side longitudinal beam positioning device is arranged at the rear side of the reinforcing plate positioning device, and the side longitudinal beam positioning device includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate, and the side longitudinal beam positioning device includes a first side longitudinal beam positioning plate and a second side longitudinal beam positioning plate, and the second side longitudinal beam positioning plate is arranged on the inner side of the first side longitudinal beam positioning plate, and the side longitudinal beam body and the inner side surface of the first side longitudinal beam positioning plate are abutted, and the lower cross beam body and the rear side surface of the second side longitudinal beam positioning plate are abutted;

[0018] The lower cross beam positioning device is arranged on the inner side of the side longitudinal beam positioning device, and the lower cross beam positioning device comprises a plurality of lower cross beam positioning plates, and the top surfaces of the lower cross beam positioning plates are provided with positioning grooves, and the lower cross beam body and the positioning grooves are adapted to each other;

[0019] The middle longitudinal beam positioning device comprises a middle longitudinal beam positioning block, which is arranged in the middle of the tooling plate, and the middle longitudinal beam positioning block is abutted against the left side surface of the middle longitudinal beam body.

[0020] As a preferred embodiment, the rear sealing cover plate assembly welding tool also includes a cylinder mounting seat positioning tool, the cylinder mounting seat positioning tool includes a cylinder positioning plate, a first pin hole is provided at the top end of the cylinder positioning plate, a first positioning pin is penetrated through the first pin hole, the first positioning pin and the oblique beam of the filler are abutted against each other, a second pin hole is provided at the bottom end of the cylinder positioning plate, a second positioning pin is penetrated through the second pin hole, and the second positioning pin is inserted into the swivel hole of the lifting arm.

[0021] As a preferred embodiment, a telescopic guide rod is movably provided on the inner side of the spreader plate, a spreader hole is provided on the top of the spreader plate, a fixing plate is fixedly provided on the inner side of the spreader plate, and the fixing plates include two identical groups, which are respectively provided on the left and right ends of the spreader plate, and each group of fixing plates includes three identical ones;

[0022] The fixing plate is provided with fixing holes, which include two identical groups, which are respectively arranged at the upper and lower ends of the fixing plate. A guide sleeve is arranged in the fixing hole, and a telescopic guide rod penetrates the guide sleeve. The two groups of telescopic guide rods are coaxially arranged.

[0023] As a preferred embodiment, a first positioning hole, a second positioning hole and a third positioning hole are respectively provided at the top corners of the triangular positioning frame, wherein the telescopic guide rod located at the top passes through the first positioning hole, and the telescopic guide rod located at the bottom passes through the second positioning hole;

[0024] A positioning sleeve is provided through the third positioning hole, and the inner end of the positioning sleeve is matched with the side wall seat shaft.

[0025] As a preferred embodiment, the adjusting positioning rod is arranged at one end of the telescopic guide rod passing through the second positioning hole, and the bottom end of the adjusting positioning rod is arranged at an adjusting screw seat;

[0026] The adjusting screw seat comprises an adjusting rod and an adjusting seat. The outer side wall of the adjusting rod is provided with threads. The top end of the adjusting rod is inserted into the adjusting positioning rod and is threadedly connected to the adjusting positioning rod. The bottom end of the adjusting rod is fixedly connected to the adjusting seat.

[0027] As a preferred embodiment, the side cover mounting assembly includes a first positioning column, a second positioning column, a first positioning block, a second positioning block, a first support block, a second support block, a third support block, a fourth support block, a fifth support block and a sixth support block, wherein the first positioning block and the second positioning block are arranged in a square shape, and the first support block, the second support block, the third support block, the fourth support block, the fifth support block and the sixth support block are arranged in a rectangular shape.

[0028] As a preferred embodiment, the positioning plate assembly includes a first positioning plate, the right top end and the right bottom end of the first positioning plate are both provided with first positioning grooves, the first positioning grooves are arranged in a stepped shape, the first positioning groove at the right top end is engaged with the first positioning column, the first positioning groove at the right bottom end is engaged with the first positioning block, and the first positioning plate;

[0029] A second positioning plate, wherein the top end of the second positioning plate is engaged with the second positioning block, and the bottom end of the second positioning plate is engaged with the second positioning column;

[0030] A third positioning plate, wherein the bottom ends of the left and right sides of the third positioning plate are both provided with third positioning grooves, the third positioning groove at the left bottom end is engaged with the first support block, and the third positioning groove at the right bottom end is engaged with the second support block;

[0031] The fourth positioning plate, a first card slot is provided at the top of the fourth positioning plate, the first card slot and the third support block are engaged with each other, a second card slot is provided at the bottom of the fourth positioning plate, the second card slot and the fourth support block are engaged with each other, a third card slot and a fourth card slot are provided at the middle of the fourth positioning plate, the third card slot and the fifth support block are engaged with each other, the fourth card slot and the sixth support block are engaged with each other, and protrusions are provided on both sides of the fourth positioning plate, and the protrusions are provided between the third card slot and the fourth card slot.

[0032] A method for welding a garbage truck loader assembly welding device, comprising the following steps:

[0033] Step 1: At the welding station of the rear sealing cover plate to the tooling plate, first place the upper crossbeam body and the lower crossbeam body close to the corresponding positioning devices, and then place the lifting arm body, the reinforcement plate body, the left longitudinal beam body, the middle longitudinal beam body, and the right longitudinal beam body close to the corresponding positioning devices;

[0034] Step 2: Locate the lifting arm mounting hole and ensure that all parts are close to the base of the positioning device and spot weld the joints of all parts;

[0035] Step 3: After the rear sealing cover frame is spot-welded and fixed, the rear sealing cover frame is disassembled, turned over, and placed on a tooling plate for assembly welding of the rear cover assembly panel;

[0036] Step 4: Use a crane for hoisting, insert the left and right wall seat shafts of the manipulator into the triangular positioning frame respectively, adjust the height of the positioning rod according to the model of the garbage truck, and fix it by spot welding;

[0037] Step 5: After spot welding the hinge mounting bracket, position the upper cover assembly, middle cover assembly and lower cover assembly respectively through the positioning plate assembly to complete the spot welding.

[0038] After adopting the above technical solution, the beneficial effects of the present invention are:

[0039] 1. The parts used in the rear sealing cover plate assembly and welding fixture are all assembled in a plug-in manner, which reduces the possibility of large positioning errors of the positioning device caused by manual marking, thereby affecting the precision of the workpiece assembly and welding dimensions. At the same time, the lifting arm positioning device uses a two-way positioning pin to locate the installation hole position accuracy, and can also control the accuracy of the lifting arm center span size, effectively ensuring the accuracy of key dimensions.

[0040] 2. The present invention ensures the relative precision size of the positioning device by the coaxial arrangement of the telescopic guide rod; the present invention can replace different triangular positioning frames according to the model of the garbage truck manipulator, which is used to match different garbage truck manipulators, thereby improving the practicality of the tooling; the present invention adjusts the distance between the positioning rod and the adjustment seat by rotating the adjustment rod, thereby adjusting the distance of the bucket rack relative to the ground according to different needs. Therefore, the present invention not only has the function of improving the coaxiality between the seat axes of the side walls on both sides, but also can ensure the accuracy of the height of the bucket rack hook relative to the ground.

[0041] 3. The present invention also realizes the fixation of the upper cover assembly, the middle cover assembly and the lower cover assembly through the positioning plate assembly, and the implementation method is that the left end top surface of the lower cover assembly and the top surface of the first positioning plate are abutted, the right end bottom surface of the lower cover and the bottom surface of the third positioning plate are abutted, the right side surface of the middle cover assembly and the fourth positioning plate are abutted, and the right end bottom surface of the upper cover assembly and the top surface of the fourth positioning plate are abutted, thereby realizing the positioning of the upper cover assembly, the middle cover assembly and the lower cover assembly, and improving the welding accuracy of the side cover assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 is a schematic diagram of the structure of the filler;

[0044] Figure 2 It is a structural schematic diagram of the rear sealing cover plate;

[0045] Figure 3 It is a structural schematic diagram of the tooling board;

[0046] Figure 4 A schematic diagram of the structure when the workpiece is in use;

[0047] Figure 5 It is a structural schematic diagram of the cylinder positioning plate;

[0048] Figure 6 It is the structural diagram of the robot;

[0049] Figure 7 It is a structural schematic diagram of the telescopic guide rod;

[0050] Figure 8 It is a structural schematic diagram of the spreader plate;

[0051] Fig. 9 It is a schematic diagram of the structure of adjusting the positioning rod;

[0052] Fig.10 This is a schematic diagram of the use of the spreader plate;

[0053] Fig.11 It is a structural schematic diagram of the side cover welding tooling;

[0054] Fig.12 is a structural schematic diagram of a side cover assembly;

[0055] Fig.13 It is a structural schematic diagram of the hinge;

[0056] Fig.14 This is a diagram of the hinge in use;

[0057] Fig.15 is a structural schematic diagram of a first positioning column;

[0058] Fig.16 It is a structural schematic diagram of the hinge mounting bracket;

[0059] Fig.17 It is a structural schematic diagram of the positioning plate assembly;

[0060] Fig.18 It is a structural schematic diagram of the fourth positioning plate.

[0061] In the figure, 1-tooling plate; 2-lifting arm positioning device; 3-reinforcement plate positioning device; 4-upper beam positioning device; 5-lower beam positioning device; 6-middle longitudinal beam positioning device; 7-side longitudinal beam positioning device; 8-cylinder positioning plate; 9-workpiece; 10-first lifting arm positioning plate; 11-second lifting arm positioning plate; 12-positioning pin shaft; 13-reinforcement plate positioning block; 14-upper beam positioning block; 15-lower beam positioning plate; 16-positioning groove; 17-middle longitudinal beam positioning block; 18-first side longitudinal beam positioning plate; 19-second side longitudinal beam positioning plate; 20-first positioning pin; 21-second positioning pin; 22-lifting arm body; 23-reinforcement plate body; 24-upper beam body; 25-lower beam body; 26-middle longitudinal beam body; 27-side longitudinal beam body; 28-hanger plate; 29-telescopic guide rod; 30-positioning frame; 31-adjustment Section positioning rod; 32-adjusting screw seat; 33-fixing plate; 34-guide sleeve; 35-side wall seat shaft; 36-hanger hole; 37-first positioning hole; 38-second positioning hole; 39-third positioning hole; 40-positioning sleeve; 41-adjusting rod; 42-adjusting seat; 43-filler assembly; 44-side cover assembly; 45-hinge mounting bracket; 46-positioning plate assembly; 47-hinge; 48-first positioning column; 49-second positioning column; 50-first positioning block; 51-second positioning block; 52-first support block; 53-second support block; 54-third support block; 55-fourth support block; 56-fifth support block; 57-sixth support block; 58-upper cover assembly; 59-middle cover assembly; 60-lower cover assembly; 61-first positioning plate; 62-second positioning plate; 63-third positioning plate; 64-fourth positioning plate. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] according to Figures 1 to 18 As shown, a garbage truck filler assembly welding device comprises:

[0064] The rear sealing cover plate assembly welding tool comprises a tool plate 1, and the top of the tool plate 1 is respectively provided with a lifting arm positioning device 2, a reinforcement plate positioning device 3, an upper cross beam positioning device 4, a lower cross beam positioning device 5, a middle longitudinal beam positioning device 6 and a side longitudinal beam positioning device 7;

[0065] The side wall seat shaft 35 assembly welding tooling includes a hanger plate 28, and a triangular positioning frame is arranged on both sides of the hanger plate 28, and an adjustment positioning rod 31 is arranged at the bottom of the triangular positioning frame;

[0066] The side cover welding tooling includes a side cover mounting assembly, a hinge mounting frame and a positioning plate assembly. The hinge mounting frame is used to position the hinge, and the positioning plate assembly is used to position the upper cover assembly 58, the middle cover assembly 59 and the lower cover assembly 60.

[0067] The lifting arm positioning device 2 is arranged at the front side of the tooling plate 1, and the lifting arm positioning device 2 includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate 1, and the lifting arm positioning device 2 includes a first lifting arm positioning plate 10 and a second lifting arm positioning plate 11, and the second lifting arm positioning plate 11 is arranged on the inner side of the first lifting arm positioning plate 10, and the first lifting arm positioning plate 10 and the second lifting arm positioning plate 11 are connected by a positioning pin shaft 12;

[0068] The length of the first lifting arm positioning plate 10 is greater than the length of the second lifting arm positioning plate 11, the lifting arm body 22 and the inner side wall of the first lifting arm positioning plate 10 are in contact with each other, and the upper cross beam body 24 and the rear side wall of the second lifting arm positioning plate 11 are in contact with each other;

[0069] The reinforcing plate positioning device 3 is arranged at the rear side of the lifting arm positioning device 2, and the reinforcing plate positioning device 3 includes a reinforcing plate positioning block 13. The reinforcing plate positioning block 13 includes two identical ones, which are respectively arranged at the left and right ends of the tooling plate 1, and the outer side surface of the reinforcing plate body 23 and the inner side surface of the reinforcing plate positioning block 13 are abutted against each other.

[0070] The upper beam positioning device 4 is arranged on the inner side of the lifting arm positioning device 2, and the upper beam positioning device 4 includes an upper beam positioning block 14, and the upper beam positioning block 14 includes two identical blocks, and the top surface of the upper beam body 24 and the bottom surface of the upper beam positioning block 14 are in contact with each other;

[0071] The side longitudinal beam positioning device 7 is arranged at the rear side of the reinforcing plate positioning device 3, and the side longitudinal beam positioning device 7 includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate 1, and the side longitudinal beam positioning device 7 includes a first side longitudinal beam positioning plate 18 and a second side longitudinal beam positioning plate 19, and the second side longitudinal beam positioning plate 19 is arranged on the inner side of the first side longitudinal beam positioning plate 18, and the side longitudinal beam body 27 and the inner side surface of the first side longitudinal beam positioning plate 18 are abutted, and the lower cross beam body 25 and the rear side surface of the second side longitudinal beam positioning plate 19 are abutted;

[0072] The lower cross beam positioning device 5 is arranged on the inner side of the side longitudinal beam positioning device 7, and the lower cross beam positioning device 5 includes a plurality of lower cross beam positioning plates 15, and the top surface of the lower cross beam positioning plates 15 is provided with positioning grooves 16, and the lower cross beam body 25 and the positioning grooves 16 are adapted to each other;

[0073] The middle longitudinal beam positioning device 6 comprises a middle longitudinal beam positioning block 17 . The middle longitudinal beam positioning block 17 is disposed in the middle of the tooling plate 1 . The middle longitudinal beam positioning block 17 is in contact with the left side surface of the middle longitudinal beam body 26 .

[0074] The rear sealing cover plate assembly welding tooling also includes a cylinder mounting seat positioning tooling, the cylinder mounting seat positioning tooling includes a cylinder positioning plate, a first pin hole is provided at the top of the cylinder positioning plate, a first positioning pin 20 is penetrated through the first pin hole, the first positioning pin 20 and the oblique beam of the filler are abutted against each other, a second pin hole is provided at the bottom end of the cylinder positioning plate, a second positioning pin 21 is penetrated through the second pin hole, and the second positioning pin 21 is inserted into the swivel hole of the lifting arm.

[0075] A telescopic guide rod 29 is movably provided inside the spreader plate 28, a spreader hole 36 is provided at the top of the spreader plate 28, and a fixing plate is fixedly provided inside the spreader plate 28. The fixing plates include two identical groups, which are respectively provided at the left and right ends of the spreader plate 28, and each group of fixing plates includes three identical ones;

[0076] The fixing plate is provided with fixing holes, which include two identical groups, which are respectively provided at the upper and lower ends of the fixing plate. A guide sleeve 34 is provided in the fixing hole, and the telescopic guide rod 29 passes through the guide sleeve 34. The two groups of telescopic guide rods 29 are coaxially provided.

[0077] The top corners of the triangular positioning frame 30 are respectively provided with a first positioning hole 37, a second positioning hole 38 and a third positioning hole 39, wherein the telescopic guide rod 29 located at the top is arranged through the first positioning hole 37, and the telescopic guide rod 29 located at the bottom is arranged through the second positioning hole 38;

[0078] A positioning sleeve 40 is provided through the third positioning hole 39 , and the inner end of the positioning sleeve 40 is matched with the side wall seat shaft 35 .

[0079] The adjusting positioning rod 31 is disposed at one end of the telescopic guide rod 29 passing through the second positioning hole 38, and the bottom end of the adjusting positioning rod 31 is disposed with an adjusting screw seat 32;

[0080] The adjusting screw seat 32 includes an adjusting rod 41 and an adjusting seat 42. The outer wall of the adjusting rod 41 is provided with threads. The top end of the adjusting rod 41 is inserted into the adjusting positioning rod 31 and is threadedly connected to the adjusting positioning rod 31. The bottom end of the adjusting rod 41 is fixedly connected to the adjusting seat 42.

[0081] The side cover mounting assembly includes a first positioning column 48, a second positioning column 49, a first positioning block 50, a second positioning block 51, a first support block 52, a second support block 53, a third support block 54, a fourth support block 55, a fifth support block 56 and a sixth support block 57, wherein the first positioning block 50 and the second positioning block 51 are arranged in a square shape, and the first support block 52, the second support block 53, the third support block 54, the fourth support block 55, the fifth support block 56 and the sixth support block 57 are arranged in a rectangular shape.

[0082] The positioning plate assembly includes a first positioning plate 61. The first positioning groove 16 is provided at the right top end and the right bottom end of the first positioning plate 61. The first positioning groove 16 is arranged in a stepped shape. The first positioning groove 16 at the right top end is engaged with the first positioning column 48. The first positioning groove 16 at the right bottom end is engaged with the first positioning block 50. The first positioning plate 61;

[0083] A second positioning plate 62, wherein the top end of the second positioning plate 62 is engaged with the second positioning block 51, and the bottom end of the second positioning plate 62 is engaged with the second positioning column 49;

[0084] A third positioning plate 63, wherein the bottom ends of the left and right sides of the third positioning plate 63 are both provided with third positioning grooves 16, the third positioning groove 16 at the left bottom end is engaged with the first support block 52, and the third positioning groove 16 at the right bottom end is engaged with the second support block 53;

[0085] The fourth positioning plate 64, the top of the fourth positioning plate 64 is provided with a first card slot, the first card slot and the third support block 54 are engaged with each other, the bottom of the fourth positioning plate 64 is provided with a second card slot, the second card slot and the fourth support block 55 are engaged with each other, the middle of the fourth positioning plate 64 is provided with a third card slot and a fourth card slot, the third card slot and the fifth support block 56 are engaged with each other, the fourth card slot and the sixth support block 57 are engaged with each other, and protrusions are also provided on both sides of the fourth positioning plate 64, and the protrusions are provided between the third card slot and the fourth card slot.

[0086] A method for welding a garbage truck loader assembly welding device, comprising the following steps:

[0087] Step 1: hoist the rear sealing cover plate to the welding position of the tooling plate 1, first place the upper crossbeam body 24 and the lower crossbeam body 25 close to the corresponding positioning devices, and then place the lifting arm body 22, the reinforcement plate body 23, the left longitudinal beam body, the middle longitudinal beam body 26, and the right longitudinal beam body close to the corresponding positioning devices;

[0088] Step 2: Locate the mounting hole of the lifting arm, and ensure that all parts are close to the base of the positioning device and spot weld the joints of all parts;

[0089] Step 3: After the rear sealing cover frame is spot-welded and fixed, the rear sealing cover frame is disassembled, turned over, and placed on the tooling plate 1 for assembly welding of the rear cover assembly panel;

[0090] Step 4: Use a crane for hoisting, insert the left and right side wall seat shafts 35 of the manipulator into the triangular positioning frame 30 respectively, adjust the height of the positioning rod 31 according to the model of the garbage truck, and fix it by spot welding;

[0091] Step 5: After the hinge mounting bracket 45 is fixed by spot welding, the upper cover assembly 58, the middle cover assembly 59 and the lower cover assembly 60 are positioned respectively by the positioning plate assembly to complete the spot welding.

[0092] The parts used in the rear sealing cover plate assembly and welding fixture are all assembled in a plug-in manner, which reduces the possibility of large positioning errors of the positioning device caused by manual marking, thereby affecting the welding precision size of the workpiece 9. At the same time, the lifting arm positioning device 2 locates the installation hole position accuracy through the bidirectional positioning pin shaft 12, and can also control the accuracy of the lifting arm center span size, effectively ensuring the accuracy of key dimensions.

[0093] The present invention ensures the relative precision size of the positioning device by coaxially setting the telescopic guide rod 29; the present invention can replace different triangular positioning frames 30 according to the model of the garbage truck manipulator, which is used to match different garbage truck manipulators, thereby improving the practicality of the tooling; the present invention adjusts the distance between the positioning rod 31 and the adjustment seat 42 by rotating the adjustment rod 41, thereby adjusting the distance of the bucket rack relative to the ground according to different needs. Therefore, the present invention not only has the function of improving the coaxiality between the side wall seat shafts 35 on both sides, but also can ensure the accuracy of the bucket rack hook height relative to the ground.

[0094] The present invention also realizes the fixation between the upper cover assembly 58, the middle cover assembly 59 and the lower cover assembly 60 through the positioning plate assembly, and the implementation method is that the left end top surface of the lower cover assembly 60 and the top surface of the first positioning plate 61 are abutted, the right end bottom surface of the lower cover and the bottom surface of the third positioning plate 63 are abutted, the right side surface of the middle cover assembly 59 and the fourth positioning plate 64 are abutted, and the right end bottom surface of the upper cover assembly 58 and the top surface of the fourth positioning plate 64 are abutted, thereby realizing the positioning of the upper cover assembly 58, the middle cover assembly 59 and the lower cover assembly 60, and improving the welding accuracy of the side cover assembly 44.

[0095] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0096] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A garbage truck loader assembly welding device, characterized in that: include: The rear sealing cover plate assembly welding tool comprises a tool plate, the top of which is respectively provided with a lifting arm positioning device, a reinforcement plate positioning device, an upper crossbeam positioning device, a lower crossbeam positioning device, a middle longitudinal beam positioning device and a side longitudinal beam positioning device; The side wall seat shaft assembly welding tool comprises a hanger plate, two sides of which are provided with triangular positioning frames, and the bottom of which is provided with an adjusting positioning rod; The side cover welding tooling includes a side cover mounting assembly, a hinge mounting frame and a positioning plate assembly, wherein the hinge mounting frame is used to position the hinge, and the positioning plate assembly is used to position the upper cover assembly, the middle cover assembly and the lower cover assembly; The lifting arm positioning device is arranged at the front side of the tooling plate, and the lifting arm positioning device includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate, and the lifting arm positioning device includes a first lifting arm positioning plate and a second lifting arm positioning plate, and the second lifting arm positioning plate is arranged on the inner side of the first lifting arm positioning plate, and the first lifting arm positioning plate and the second lifting arm positioning plate are connected by a positioning pin shaft; The length of the first lifting arm positioning plate is greater than that of the second lifting arm positioning plate, the lifting arm body and the inner side wall of the first lifting arm positioning plate are in contact with each other, and the upper cross beam body and the rear side wall of the second lifting arm positioning plate are in contact with each other; The reinforcing plate positioning device is arranged at the rear side of the lifting arm positioning device, and the reinforcing plate positioning device includes a reinforcing plate positioning block, and the reinforcing plate positioning block includes two identical ones, which are respectively arranged at the left and right ends of the tooling plate, and the outer side surface of the reinforcing plate body and the inner side surface of the reinforcing plate positioning block are abutted; The upper beam positioning device is arranged on the inner side of the lifting arm positioning device, and the upper beam positioning device comprises an upper beam positioning block, and the upper beam positioning block comprises two identical blocks, and the top surface of the upper beam body and the bottom surface of the upper beam positioning block are in contact with each other; The side longitudinal beam positioning device is arranged at the rear side of the reinforcing plate positioning device, and the side longitudinal beam positioning device includes two identical groups, which are respectively arranged at the left and right ends of the tooling plate, and the side longitudinal beam positioning device includes a first side longitudinal beam positioning plate and a second side longitudinal beam positioning plate, and the second side longitudinal beam positioning plate is arranged on the inner side of the first side longitudinal beam positioning plate, and the side longitudinal beam body and the inner side surface of the first side longitudinal beam positioning plate are abutted, and the lower cross beam body and the rear side surface of the second side longitudinal beam positioning plate are abutted; The lower cross beam positioning device is arranged on the inner side of the side longitudinal beam positioning device, and the lower cross beam positioning device comprises a plurality of lower cross beam positioning plates, and the top surfaces of the lower cross beam positioning plates are provided with positioning grooves, and the lower cross beam body and the positioning grooves are adapted to each other; The middle longitudinal beam positioning device comprises a middle longitudinal beam positioning block, which is arranged in the middle of the tooling plate, and the middle longitudinal beam positioning block is abutted against the left side surface of the middle longitudinal beam body.

2. A garbage truck loader assembly welding device according to claim 1, characterized in that: The rear sealing cover plate assembly welding tooling also includes a cylinder mounting seat positioning tooling, the cylinder mounting seat positioning tooling includes a cylinder positioning plate, a first pin hole is provided at the top end of the cylinder positioning plate, a first positioning pin is penetrated through the first pin hole, the first positioning pin and the oblique beam of the filler are abutted against each other, a second pin hole is provided at the bottom end of the cylinder positioning plate, a second positioning pin is penetrated through the second pin hole, and the second positioning pin is inserted into the swivel hole of the lifting arm.

3. A garbage truck loader assembly welding device according to claim 1, characterized in that: A telescopic guide rod is movably arranged on the inner side of the spreader plate, a spreader hole is arranged on the top of the spreader plate, a fixing plate is fixedly arranged on the inner side of the spreader plate, and the fixing plates include two identical groups, which are respectively arranged at the left and right ends of the spreader plate, and each group of fixing plates includes three identical ones; The fixing plate is provided with fixing holes, which include two identical groups, which are respectively arranged at the upper and lower ends of the fixing plate. A guide sleeve is arranged in the fixing hole, and a telescopic guide rod penetrates the guide sleeve. The two groups of telescopic guide rods are coaxially arranged.

4. A garbage truck loader assembly welding device according to claim 3, characterized in that: The top corners of the triangular positioning frame are respectively provided with a first positioning hole, a second positioning hole and a third positioning hole, wherein the telescopic guide rod located at the top passes through the first positioning hole, and the telescopic guide rod located at the bottom passes through the second positioning hole; A positioning sleeve is provided through the third positioning hole, and the inner end of the positioning sleeve is matched with the side wall seat shaft.

5. A garbage truck loader assembly welding device according to claim 4, characterized in that: The adjusting positioning rod is arranged at one end of the telescopic guide rod passing through the second positioning hole, and the adjusting screw seat is arranged at the bottom end of the adjusting positioning rod; The adjusting screw seat comprises an adjusting rod and an adjusting seat. The outer side wall of the adjusting rod is provided with threads. The top end of the adjusting rod is inserted into the adjusting positioning rod and is threadedly connected to the adjusting positioning rod. The bottom end of the adjusting rod is fixedly connected to the adjusting seat.

6. A garbage truck loader assembly welding device according to claim 1, characterized in that: The side cover mounting assembly includes a first positioning column, a second positioning column, a first positioning block, a second positioning block, a first support block, a second support block, a third support block, a fourth support block, a fifth support block and a sixth support block, wherein the first positioning block and the second positioning block are arranged in a square shape, and the first support block, the second support block, the third support block, the fourth support block, the fifth support block and the sixth support block are arranged in a rectangular shape.

7. A garbage truck loader assembly welding device according to claim 6, characterized in that: The positioning plate assembly includes a first positioning plate, and the first positioning grooves are arranged at the right top end and the right bottom end of the first positioning plate, and the first positioning grooves are arranged in a stepped shape, and the first positioning grooves at the right top end and the first positioning columns are engaged with each other, and the first positioning grooves at the right bottom end and the first positioning blocks are engaged with each other, and the first positioning plate; A second positioning plate, wherein the top end of the second positioning plate is engaged with the second positioning block, and the bottom end of the second positioning plate is engaged with the second positioning column; A third positioning plate, wherein the bottom ends of the left and right sides of the third positioning plate are both provided with third positioning grooves, the third positioning groove at the left bottom end is engaged with the first support block, and the third positioning groove at the right bottom end is engaged with the second support block; The fourth positioning plate, a first card slot is provided at the top of the fourth positioning plate, the first card slot and the third support block are engaged with each other, a second card slot is provided at the bottom of the fourth positioning plate, the second card slot and the fourth support block are engaged with each other, a third card slot and a fourth card slot are provided at the middle of the fourth positioning plate, the third card slot and the fifth support block are engaged with each other, the fourth card slot and the sixth support block are engaged with each other, and protrusions are provided on both sides of the fourth positioning plate, and the protrusions are provided between the third card slot and the fourth card slot.

8. A welding method using the garbage truck loader assembly welding device as claimed in claim 1, characterized in that: The steps include: Step 1: At the welding station of the rear sealing cover plate to the tooling plate, first place the upper crossbeam body and the lower crossbeam body close to the corresponding positioning devices, and then place the lifting arm body, the reinforcement plate body, the left longitudinal beam body, the middle longitudinal beam body, and the right longitudinal beam body close to the corresponding positioning devices; Step 2: Locate the mounting hole of the lifting arm, and ensure that all parts are close to the base of the positioning device and spot weld the joints of all parts; Step 3: After the rear sealing cover frame is spot-welded and fixed, the rear sealing cover frame is disassembled, turned over, and placed on a tooling plate for assembly welding of the rear cover assembly panel; Step 4: Use a crane for hoisting, insert the left and right wall seat shafts of the manipulator into the triangular positioning frame respectively, adjust the height of the positioning rod according to the model of the garbage truck, and fix it by spot welding; Step 5: After spot welding the hinge mounting bracket, position the upper cover assembly, middle cover assembly and lower cover assembly respectively through the positioning plate assembly to complete the spot welding.

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