Excavator idler seat stitching and welding equipment

Abstract

The invention discloses a dot welding equipment for an excavator idler wheel seat, which includes a sample feeding component, a secondary positioning component, a support component, an idler wheel seat dot welding component, an idler wheel seat welding component, a handling robot component, a blanking conveying plate chain, an electrical control assembly and a display touch screen. The secondary positioning component is arranged on one side close to the sample feeding component. There are two groups of support components, and one group of support components is arranged on one side close to the secondary positioning component. The idler wheel seat dot welding component is arranged on one side close to the two groups of support components. The idler wheel seat welding component is arranged on one side close to the other group of support components. The handling robot component is located in the middle position. The blanking conveying plate chain is arranged on one side of the handling robot component. Thus, the idler wheel seats to be welded and processed are grouped, handled, welded and blanked. The secondary positioning of the idler wheel seats improves the positioning accuracy, and at the same time facilitates feeding and prevents the idler wheel seats to be processed from falling.

Description

Technical Field

[0001] The present invention relates to the technical field of idler seat welding processing, and particularly to a spot welding device for assembling and welding an excavator idler seat. Background Art

[0002] As a versatile machine in the construction machinery field, the excavator has a very wide range of applications. The idler seat, also known as the guide seat, is an indispensable component on the crawler beam of the excavator chassis. The crawler carried by the idler on this component not only supports the overall weight of the excavator but also undertakes the important task of walking, which is of crucial significance for the performance, quality stability, and service life of the excavator.

[0003] However, the process of assembling and welding the idler seat is extremely complex and requires a very high intensity of manual operation, which directly leads to low production efficiency. In the past manual assembly and welding operations, due to relying on a rough positioning tooling for the preliminary assembly of single-piece workpieces, and after welding, the left and right single-pieces still need to be further assembled with the bottom plate and rib plates into a complete idler seat. This process is not only cumbersome, but also the size and quality of the product are difficult to be effectively controlled, and the welding quality often fluctuates. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related technologies to some extent.

[0005] For this purpose, the object of the present invention is to provide a spot welding device for assembling and welding an excavator idler seat, which can group, transport, weld, and unload the idler seat to be welded and processed, improve the positioning accuracy by performing secondary positioning on the idler seat, and at the same time facilitate loading and prevent the idler seat to be processed from falling.

[0006] To achieve the above object, the present invention provides a spot welding and welding equipment for the idler wheel seat of an excavator, including a feeding component, a secondary positioning component, a supporting component, an idler wheel seat spot welding component, an idler wheel seat welding component, a handling robot component, a blanking conveying plate chain, an electrical control assembly, and a display touch screen. Among them, the feeding component includes a rack base, a tray, a material stop, a material supporting pin, a guiding positioning pin, and a positioning sleeve. The rack base and the tray are respectively in multiple groups, and each group of trays is arranged on the corresponding rack base; the material stop is arranged on the corresponding tray; the material supporting pin is arranged on the corresponding tray; the guiding positioning pin is arranged on the rack base; the positioning sleeve is arranged on the tray, and the positioning sleeve is connected to the guiding positioning pin; the secondary positioning component is arranged on one side close to the rack base, and the secondary positioning component is used for accurately positioning the idler wheel seat to be processed; the supporting component is in two groups, and one group of the supporting components is arranged on one side close to the secondary positioning component, and the supporting component is used for supporting the idler wheel seat to be turned over for processing; the idler wheel seat spot welding component is arranged on one side close to the two groups of supporting components, and the idler wheel seat spot welding component is used for spot welding and anchoring the idler wheel seat; the idler wheel seat welding component is arranged on one side close to the other group of supporting components, and the idler wheel seat welding component is used for welding the weld on the idler wheel seat; the handling robot component is arranged at the middle position among the feeding component, the secondary positioning component, the supporting component, the idler wheel seat spot welding component, and the idler wheel seat welding component, and the handling robot component is used for handling the idler wheel seat to be processed; the blanking conveying plate chain is arranged on one side of the handling robot component; the electrical control assembly is in multiple groups, and the multiple groups of electrical control assemblies are respectively connected to the idler wheel seat spot welding component, the idler wheel seat welding component, and the handling robot component; the display touch screen is arranged on the electrical control assembly.

[0007] In addition, the spot welding and welding equipment for the idler wheel seat of an excavator proposed according to the above application may also have the following additional technical features:

[0008] Specifically, the secondary positioning component includes an inclined base, a low positioning block, a side propulsion component, a roller, a high positioning block, and a universal ball. The inclined base is arranged on one side of the rack base; the low positioning blocks are in multiple groups, and the multiple groups of low positioning blocks are respectively arranged on the top wall of the inclined base; the side propulsion components are in two groups, and the two groups of side propulsion components are respectively arranged on the inclined base; the rollers are in multiple groups, and the multiple groups of rollers are respectively rotatably arranged on the inclined base; the high positioning blocks are in multiple groups, and the multiple groups of high positioning blocks are respectively arranged on the inclined base; the universal balls are in multiple groups, and the multiple groups of universal balls are rotatably arranged on the inclined base.

[0009] Specifically, the support assembly includes a support frame, a wear-resistant plate, and L-shaped abutting blocks. Among them, the wear-resistant plate is arranged on the support frame; there are multiple groups of L-shaped abutting blocks, and the multiple groups of L-shaped abutting blocks are respectively arranged on the support frame.

[0010] Specifically, the idler wheel seat alignment component includes a left single-piece alignment tooling, an idler wheel seat alignment tooling, a right single-piece alignment tooling, and a spot welding robot. Among them, the left single-piece alignment tooling is arranged on one side close to the support frame; the idler wheel seat alignment tooling is arranged on one side of the left single-piece alignment tooling; the right single-piece alignment tooling is arranged on one side of the idler wheel seat alignment tooling; the spot welding robot is arranged on the idler wheel seat alignment tooling.

[0011] Specifically, the idler wheel seat alignment tooling includes a reducer, a servo motor, a two-axis tilting and turning positioner, a tooling base, a bottom plate positioning block, a positioning bracket, a notch positioning block, a vertical plate positioning block, a V-shaped press head, and a cylinder. Among them, the servo motor is arranged on the two-axis tilting and turning positioner; the reducer is arranged at the output end of the servo motor; the tooling base is arranged on the two-axis tilting and turning positioner; there are two groups of positioning brackets, and the two groups of positioning brackets are respectively movably arranged in the tooling base; the bottom plate positioning block, the notch positioning block, and the vertical plate positioning block are respectively arranged on the positioning brackets; the cylinder is arranged on the tooling base; the V-shaped press head is arranged at the output end of the cylinder.

[0012] Specifically, the idler wheel seat welding component includes a robot base, a gun cleaning and wire cutting station, a six-axis welding robot, a robot extended welding torch, a two-axis L-shaped positioner, and a total assembly welding tooling. Among them, the gun cleaning and wire cutting station is arranged on the robot base; the six-axis welding robot is arranged on the robot base; the robot extended welding torch is arranged at the output end of the six-axis welding robot; the two-axis L-shaped positioner is arranged on one side close to the robot base; the total assembly welding tooling is arranged on the two-axis L-shaped positioner.

[0013] Specifically, the handling robot component includes a ground rail frame, a guide rail slider mechanism, a rack, a sliding plate, a driving component, a six-axis handling robot II, a main magnet, a fork foot, a gripper frame, and a secondary magnet. Among them, the guide rail slider mechanism is arranged on the ground rail frame; the rack is arranged on the guide rail slider mechanism; the sliding plate is movably arranged on the ground rail frame; the driving component is arranged on the sliding plate; the six-axis handling robot II is arranged at the output end of the driving component; the gripper frame is arranged on the six-axis handling robot II; the main magnet and the secondary magnet are respectively arranged on the gripper frame; there are two groups of fork feet, and the two groups are respectively arranged on the gripper frame.

[0014] Specifically, the blanking conveying plate chain includes a fixed bottom plate, a conveying chain, and a conveying support plate. Among them, the conveying chain is arranged on the fixed bottom plate; the conveying support plate is movably arranged on the conveying chain.

[0015] Compared with the prior art, the idler wheel seat stitching and welding equipment of the present invention has the following advantages:

[0016] An electrical control assembly compatible with programs of multiple models of idler wheel seats to be processed is adopted to group, transport, weld, and blank the idler wheel seats;

[0017] A design with separation of the material tray and the material rack is adopted. The material tray is provided with lifting lugs and forklift holes below, facilitating feeding through AGV, forklift, or manual lifting;

[0018] During the grouping and installation, the positioning seat is controlled by a servo motor to adjust different spacing dimensions to suit different models, and the idler wheel seats are grouped;

[0019] The idler wheel seats to be welded and processed are installed on the turntable of the two-axis tilting and positioning machine. The turntable on the two-axis tilting and positioning machine makes rotational movements around two perpendicular intersecting axes in space, and the tooling can be transformed into different postures to facilitate the feeding of the handling robot;

[0020] The welding torch of the idler wheel seat welding robot adopts an extended welding torch to improve the welding accessibility. The gripper frame of the handling robot is provided with a fork-shaped structure for the handling function after the idler wheel seat is welded, avoiding the problem of the workpiece falling due to the failure of the electromagnet gripper when the temperature of the workpiece is high after welding.

[0021] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above-mentioned and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic structural diagram of the idler wheel seat workpiece of the present invention;

[0025] Figure 3 is a schematic structural diagram of the sample feeding assembly of the present invention;

[0026] Figure 4 is Figure 3 a partial enlarged view;

[0027] Figure 5 is a schematic structural diagram of the secondary positioning assembly of the present invention;

[0028] Figure 6 Structural schematic diagram of the support component of the present invention;

[0029] Figure 7 Structural schematic diagram of the indexing component of the idler wheel seat of the present invention;

[0030] Figure 8 Structural schematic diagram of the indexing tooling of the idler wheel seat of the present invention;

[0031] Figure 9 Structural schematic diagram of the welding component of the idler wheel seat of the present invention;

[0032] Figure 10 Structural schematic diagram of the handling robot component of the present invention;

[0033] Figure 11 Structural schematic diagram of the blanking conveying plate chain of the present invention.

[0034] As shown in the figure: 1. Sampling component; 11. Rack base; 12. Tray; 13. Material stop; 14. Material support pin; 15. Guide positioning pin; 16. Positioning sleeve; 2. Secondary positioning component; 21. Inclined base; 22. Low positioning block; 23. Side propulsion component; 24. Roller; 25. High positioning block; 26. Universal ball; 3. Support component; 31. Support frame; 32. Wear-resistant plate; 33. L-shaped support block; 4. Indexing component of idler wheel seat; 41. Left single-piece indexing tooling; 42. Indexing tooling of idler wheel seat; 421. Reducer; 422. Servo motor; 423. Two-axis tilting and tipping positioner; 424. Tooling base; 425. Bottom plate positioning block; 426. Positioning bracket; 427. Notch positioning block; 428. Vertical plate positioning block; 429. V-shaped pressure head; 4210. Cylinder; 43. Right single-piece indexing tooling; 44. Spot welding robot; 5. Welding component of idler wheel seat; 51. Robot base; 52. Gun cleaning and wire cutting station; 53. Six-axis welding robot; 54. Robot extended welding torch; 55. Two-axis L-shaped positioner; 56. Assembly welding tooling; 6. Handling robot component; 61. Floor rail frame; 62. Guide rail slider mechanism; 63. Rack; 64. Sled; 65. Driving component; 66. Six-axis handling robot II; 67. Main magnet; 68. Fork feet; 69. Gripper frame; 610. Auxiliary magnet; 7. Blanking conveying plate chain; 71. Fixed bottom plate; 72. Conveyor chain; 73. Conveyor support plate; 8. Electrical control assembly; 9. Display touch screen. Detailed implementation manners

[0035] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications and equivalents that fall within the spirit and scope of the appended claims.

[0036] The present invention will be described below with reference to the accompanying drawings in connection with a spot welding device for the idler wheel seat of an excavator according to an embodiment of the present invention.

[0037] As Figures 1-11 shown, the spot welding device for the idler wheel seat of an excavator according to an embodiment of the present invention includes a sample feeding assembly 1, a secondary positioning assembly 2, a support assembly 3, an idler wheel seat spot welding assembly 4, an idler wheel seat welding assembly 5, a handling robot assembly 6, a blanking conveyor chain 7, an electrical control assembly 8, and a display touch screen 9.

[0038] It should be noted that the idler wheel seat workpiece 10 to be welded and processed includes a left single-piece 101, an outer rib plate 102, a right single-piece 103, a bottom plate 104, and an inner rib plate 105.

[0039] Among them, the left single-piece 101 is composed of an upper left horizontal plate 1011, a left vertical plate 1012, a left bending plate 1013, and a lower left horizontal plate 1014; the right single-piece 103 is composed of an upper right horizontal plate 1031, a right vertical plate 1032, a right bending plate 1033, and a lower right horizontal plate 1034.

[0040] Among them, the sample feeding assembly 1 includes a rack base 11, a tray 12, a material stop 13, a material abutting pin 14, a guiding positioning pin 15, and a positioning sleeve 16.

[0041] Among them, the rack base 11 and the tray 12 are respectively provided in multiple groups. Each group of trays 12 is arranged on the corresponding rack base 11. The material stop 13 is arranged on the corresponding tray 12, and the material abutting pin 14 is arranged on the corresponding tray 12. The guiding positioning pin 15 is arranged on the rack base 11, and the positioning sleeve 16 is arranged on the tray 12, and the positioning sleeve 16 is connected to the guiding positioning pin 15.

[0042] It should be noted that the material stopper 13 is only provided on one set of the material trays 12. The left bending plate 1013 and the right bending plate 1033 are intercepted by the material stopper 13, so that the left bending plate 1013 and the right bending plate 1033 are stably placed on the material trays 12. There are multiple sets of material support pins 14, and multiple sets of material support pins 14 are respectively installed on the remaining multiple sets of material trays 12. Moreover, the material support pins 14 on each set of material trays 12 are respectively installed at different positions on the material trays 12, and the number of the material support pins 14 is set according to the positions where the outer rib plates 102, the bottom plates 104, the inner rib plates 105, the upper left horizontal plates 1011, the left vertical plates 1012, the lower left horizontal plates 1014, the upper right horizontal plates 1031, the right vertical plates 1032, and the lower right horizontal plates 1034 are placed. The positioning sleeve 16 and the guiding positioning pin 15 cooperate with each other, and the material tray 12 is limited and installed on the material rack base 11, thus facilitating disassembly and assembly.

[0043] The secondary positioning assembly 2 is arranged on one side close to the material rack base 11. The secondary positioning assembly 2 is used for precisely positioning the idler wheel seat sub-component at the splicing point. There are two sets of support assemblies 3. One set of support assemblies 3 is arranged on one side close to the secondary positioning assembly 2. The support assemblies 3 are used for supporting the left single-piece 101 and the right single-piece 103 to be turned over for processing.

[0044] It should be noted that the secondary positioning assembly 2 is used for limiting the placement of the outer rib plates 102, the inner rib plates 105, the lower left horizontal plates 1014, and the lower right horizontal plates 1034 to be welded. After the first-time limiting placement and in accordance with the outer rib plates 102, the inner rib plates 105, the lower left horizontal plates 1014, and the lower right horizontal plates 1034 to be welded for limiting, they will be moved to the left single-piece splicing tooling 41 and the right single-piece splicing tooling 43 during subsequent conveying.

[0045] The idler wheel seat splicing assembly 4 is arranged on one side close to the two sets of support assemblies 3. The idler wheel seat splicing assembly 4 is used for spot welding and anchoring the idler wheel seat. The idler wheel seat welding assembly 5 is arranged on one side close to the other set of support assemblies 3. The idler wheel seat welding assembly 5 is used for welding the welds on the idler wheel seat.

[0046] It should be noted that in this embodiment, the idler wheel seat splicing assembly 4 transports the left single-piece 101 and the right single-piece 103 that are lined up and completed on the support assembly 3, completes the splicing and performs spot welding, while the idler wheel seat welding assembly 5 welds the idler wheel seat workpiece 10.

[0047] The handling robot assembly 6 is arranged at the middle position among the feeding assembly 1, the secondary positioning assembly 2, the support assembly 3, the idler wheel seat splicing assembly 4, and the idler wheel seat welding assembly 5. The handling robot assembly 6 is used for handling the idler wheel seat to be processed.

[0048] It should be noted that the handling robot component 6 is arranged at the middle position among the sample feeding component 1, the secondary positioning component 2, the support component 3, the idler wheel seat dotting component 4 and the idler wheel seat welding component 5. The handling robot component 6 is used to sequentially transport the idler wheel seat workpieces 10 to be welded and processed to the positions of each processing tooling.

[0049] The blanking conveying plate chain 7 is arranged on one side of the handling robot component 6. There are multiple groups of electrical control assemblies 8, and the multiple groups of electrical control assemblies 8 are respectively connected to the idler wheel seat dotting component 4, the idler wheel seat welding component 5 and the handling robot component 6. The display touch screen 9 is arranged on the electrical control assembly 8.

[0050] It should be noted that after the welding and processing of the idler wheel seat workpiece 10 is completed, the handling robot component 6 transports the welded idler wheel seat workpiece 10 to the blanking conveying plate chain 7, and then it is conveyed to the picking position through the blanking conveying plate chain 7. The electrical control assembly 8 and the display touch screen 9 are used to control the operation of each component.

[0051] Furthermore, the electrical control assembly 8 and the display touch screen 9 are prior arts. The model corresponding to the idler wheel seat workpiece 10 to be welded and processed is input into the electrical control assembly 8 through the display touch screen 9, and the electrical control assembly 8 then calls the program of the corresponding workpiece to perform the welding and processing on the idler wheel seat workpiece 10.

[0052] In an embodiment of the present invention, as Figure 5 shown, the secondary positioning component 2 includes an inclined base 21, a low positioning block 22, a side propulsion component 23, a roller 24, a high positioning block 25 and a universal ball 26.

[0053] Among them, the inclined base 21 is arranged on one side of the rack base 11. There are multiple groups of low positioning blocks 22, and the multiple groups of low positioning blocks 22 are respectively arranged on the top wall of the inclined base 21. There are two groups of side propulsion components 23, and the two groups of side propulsion components 23 are respectively arranged on the inclined base 21. There are multiple groups of rollers 24, and the multiple groups of rollers 24 are respectively rotatably arranged on the inclined base 21. There are multiple groups of high positioning blocks 25, and the multiple groups of high positioning blocks 25 are respectively arranged on the inclined base 21. There are multiple groups of universal balls 26, and the multiple groups of universal balls 26 are rotatably arranged on the inclined base 21.

[0054] It should be noted that the two groups of side propulsion components 23 on the inclined base 21 are respectively cylinders. By controlling the switch and connecting the power supply to operate the side propulsion components 23, when the side propulsion components 23 operate, they push the idler wheel seat workpiece 10 placed on them to move. When moving, they are respectively installed on the low positioning block 22 and the high positioning block 25 according to the model of the idler wheel seat workpiece 10 to be processed, and move through the universal balls 26 and the rollers 24.

[0055] In an embodiment of the present invention, as Figure 6As shown, the support assembly 3 includes a support frame 31, a wear-resistant plate 32, and an L-shaped stop block 33.

[0056] Among them, the wear-resistant plate 32 is arranged on the support frame 31, and there are multiple groups of L-shaped stop blocks 33, and multiple groups of L-shaped stop blocks 33 are respectively arranged on the support frame 31.

[0057] It should be noted that the wear-resistant plate 32 is used to support the left single-piece 101 and the right single-piece 103 to be welded and processed, and the left single-piece 101 and the right single-piece 103 are limited by the L-shaped stop blocks 33 to ensure good stability of the positioning of the left single-piece 101 and the right single-piece 103.

[0058] In an embodiment of the present invention, as Figure 7 shown, the idler wheel seat stitching component 4 includes a left single-piece stitching tooling 41, an idler wheel seat stitching tooling 42, a right single-piece stitching tooling 43, and a spot welding robot 44.

[0059] Among them, the left single-piece stitching tooling 41 is arranged on one side close to the support frame 31, and the idler wheel seat stitching tooling 42 is arranged on one side of the left single-piece stitching tooling 41. The right single-piece stitching tooling 43 is arranged on one side of the idler wheel seat stitching tooling 42, and the spot welding robot 44 is arranged on the idler wheel seat stitching tooling 42.

[0060] It should be noted that the left single-piece stitching tooling 41, the idler wheel seat stitching tooling 42, and the right single-piece stitching tooling 43 are arranged in a linear array in sequence, and the spot welding robot 44 is arranged behind the idler wheel seat stitching tooling 42 to perform spot welding on different positions of the workpiece 10 of the idler wheel seat to be processed.

[0061] In an embodiment of the present invention, as Figure 8 shown, the idler wheel seat stitching tooling 42 includes a speed reducer 421, a servo motor 422, a two-axis tilting and turning positioner 423, a tooling base 424, a bottom plate positioning block 425, a positioning bracket 426, a notch positioning block 427, a vertical plate positioning block 428, a V-shaped pressing head 429, and a cylinder 4210.

[0062] Among them, the servo motor 422 is arranged on the two-axis tilting and turning positioner 423, and the speed reducer 421 is arranged at the output end of the servo motor 422. The tooling base 424 is arranged on the two-axis tilting and turning positioner 423, and there are two groups of positioning brackets 426, and the two groups of positioning brackets 426 are respectively movably arranged in the tooling base 424. The bottom plate positioning block 425, the notch positioning block 427, and the vertical plate positioning block 428 are respectively arranged on the positioning brackets 426, the cylinder 4210 is arranged on the tooling base 424, and the V-shaped pressing head 429 is arranged at the output end of the cylinder 4210.

[0063] It should be noted that by controlling the switch and connecting the power supply to operate the servo motor 422, when the servo motor 422 operates, it drives two groups of positioning brackets 426 to move relative to each other through the speed reducer 421. A transmission screw rod is provided at the output end of the servo motor 422, and the two groups of positioning brackets 426 are threadedly connected to the transmission screw rod through internal thread sleeve rings.

[0064] In an embodiment of the present invention, as Figure 9 shown, the idler wheel seat welding assembly 5 includes a robot base 51, a gun cleaning and wire cutting station 52, a six-axis welding robot 53, a robot extended welding torch 54, a two-axis L-shaped positioner 55, and an assembly welding tooling 56.

[0065] Among them, the gun cleaning and wire cutting station 52 is arranged on the robot base 51, the six-axis welding robot 53 is arranged on the robot base 51, and the robot extended welding torch 54 is arranged at the output end of the six-axis welding robot 53. The two-axis L-shaped positioner 55 is arranged on one side close to the robot base 51, and the assembly welding tooling 56 is arranged on the two-axis L-shaped positioner 55.

[0066] It should be noted that the use of the robot extended welding torch 54 can increase the welding range that can be achieved by welding, thereby increasing the welding rate, and the six-axis welding robot 53 is used to control the robot extended welding torch 54 to perform welding processing on the idler wheel seat workpiece 10 to be processed.

[0067] In an embodiment of the present invention, as Figure 10 shown, the handling robot assembly 6 includes a ground rail frame 61, a guide rail slider mechanism 62, a rack 63, a sliding plate 64, a driving component 65, a six-axis handling robot two 66, a main magnet 67, a fork foot 68, a gripper frame 69, and a secondary magnet 610.

[0068] Among them, the guide rail slider mechanism 62 is arranged on the ground rail frame 61, the rack 63 is arranged on the guide rail slider mechanism 62, and the sliding plate 64 is movably arranged on the ground rail frame 61. The driving component 65 is arranged on the sliding plate 64, the six-axis handling robot two 66 is arranged at the output end of the driving component 65, and the gripper frame 69 is arranged on the six-axis handling robot two 66. The main magnet 67 and the secondary magnet 610 are respectively arranged on the gripper frame 69, and there are two groups of fork feet 68, and the two groups of fork feet 68 are respectively arranged on the gripper frame 69.

[0069] It should be noted that a chute matching the guide rail slider mechanism 62 and a meshing gear matching the rack 63 are provided on the bottom wall of the sliding plate 64, so that the sliding plate 64 moves and adjusts on the ground rail frame 61. The six-axis handling robot two 66 drives the main magnet 67, the secondary magnet 610, and the fork feet 68 to handle the idler wheel seat workpiece 10 to be processed.

[0070] In an embodiment of the present invention, as Figure XAs shown, the blanking conveying plate chain 7 includes a fixed bottom plate 71, a conveying chain 72, and a conveying support plate 73.

[0071] Among them, the conveying chain 72 is arranged on the fixed bottom plate 71, and the conveying support plate 73 is movably arranged on the conveying chain 72.

[0072] It should be noted that after the processing is completed, the idler wheel seat workpiece 10 is transported to the conveying support plate 73 by the six-axis handling robot II 66, and then moved and conveyed by the conveying chain 72.

[0073] Specifically, the steps for welding the excavator idler wheel seat are as follows: confirm the model of the idler wheel seat workpiece 10 to be produced, place the incoming materials of the corresponding idler wheel seat workpiece 10 on the tray 12 according to the model and required requirements, and then place the idler wheel seat workpiece 10 in the tray 12 on the rack base 11 by manual hoisting or AGV. Subsequently, enter and confirm the model of the idler wheel seat workpiece 10 on the display touch screen 9. At this time, the electrical control assembly 8 calls the program used for the corresponding idler wheel seat workpiece 10 model.

[0074] The handling robot assembly 6 sequentially places the left bending plate 1013 and the right bending plate 1033 into the left single-piece fitting and positioning tooling 41 and the right single-piece fitting and positioning tooling 43 through the main magnet 67 thereon, and the clamping and positioning blocks of the tooling clamp and position the incoming materials. The handling robot assembly 6 sequentially places the upper left horizontal plate 1011, the left vertical plate 1012, and the lower left horizontal plate 1014 on the secondary positioning assembly 2 through the secondary magnet 610 thereon. The incoming sub-components complete secondary precise positioning under the action of gravity and the side propulsion component 23. The handling robot assembly 6 sequentially grabs and places these sub-components from the secondary positioning assembly 2 into the left single-piece fitting and positioning tooling 41 through the secondary magnet 610 thereon. At the same time, the spot welding robot 44 spot-welds and anchors the assembled sub-components.

[0075] The handling robot assembly 6 sequentially places the upper right horizontal plate 1031, the right vertical plate 1032, and the lower right horizontal plate 1034 on the secondary positioning assembly 2 through the secondary magnet 610 thereon. The incoming sub-components complete secondary precise positioning under the action of gravity and the side propulsion component 23. The handling robot assembly 6 sequentially grabs and places these sub-components from the secondary positioning assembly 2 into the right single-piece fitting and positioning tooling 43 through the secondary magnet 610 thereon. At the same time, the spot welding robot 44 spot-welds and anchors the assembled sub-components through the robot welding torch. The handling robot assembly 6 grabs the bottom plate 104 to the tooling base 424 of the idler wheel seat fitting and positioning tooling 42 through the secondary magnet 610 thereon. The two groups of positioning brackets 426 move synchronously and in opposite directions under the action of the reducer 421, the servo motor 422, the coupling, and the positive and negative lead screws. The four bottom plate positioning blocks 425 installed on the two groups of positioning brackets 426 position and clamp the bottom plate 104.

[0076] The handling robot assembly 6 transports the left single-piece 101 assembled in the left single-piece assembly fixture 41 to the support assembly 3 adjacent to the left single-piece 101 through the main magnet 67 thereon. The gripper frame 69 of the handling robot assembly 6 grabs the workpiece from below the left bending plate 1013 of the left single-piece 101 through the main magnet 67 and places it on the idler wheel seat assembly fixture 42. The notch positioning block 427 and the vertical plate positioning block 428 on the left positioning bracket 426 position the left single-piece 101, and the spot welding robot 44 anchors the assembled left single-piece 101 by spot welding through the robot welding torch. The handling robot assembly 6 places the inner rib plate 105 on the secondary positioning assembly 2 through the auxiliary magnet 610 thereon. The inner rib plate 105 completes secondary precise positioning under the action of gravity and the side propulsion component 23. The handling robot assembly 6 grabs the inner rib plate 105 from the secondary positioning assembly 2 and places it into the idler wheel seat assembly fixture 42 through the auxiliary magnet 610 thereon. The handling robot assembly 6 transports the right single-piece 103 assembled in the right single-piece assembly fixture 43 to the support assembly 3 adjacent to the left single-piece 101 through the main magnet 67 thereon. The gripper frame 69 of the handling robot assembly 6 grabs the workpiece from below the right bending plate 1033 of the right single-piece 103 through the main magnet 67 and places it on the idler wheel seat assembly fixture 42. The notch positioning block 427 and the vertical plate positioning block 428 on the right positioning bracket 426 position the right single-piece 103, and the spot welding robot 44 anchors the assembled right single-piece 103 by spot welding through the robot welding torch.

[0077] The two-axis tilting positioner 423 rotates the workpiece and the fixture 180° counterclockwise along the vertical axis, and then tilts 90° in the horizontal axis towards the handling robot. The handling robot assembly 6 places the outer rib plate 102 on the secondary positioning assembly 2 through the auxiliary magnet 610 thereon. The outer rib plate 102 completes secondary precise positioning under the action of gravity and the side propulsion component 23. The handling robot assembly 6 grabs the outer rib plate 102 from the secondary positioning assembly 2 and places it into the idler wheel seat assembly fixture 42 through the auxiliary magnet 610 thereon. The V-shaped press head 429 presses the outer rib plate 102 against the left single-piece 101 and the right single-piece 103 under the action of the cylinder 4210, and the spot welding robot 44 anchors the assembled outer rib plate 102 by spot welding through the robot welding torch. The two-axis tilting positioner 423 tilts 90° in the horizontal axis towards the original position direction, and then rotates 180° clockwise along the vertical axis. The two groups of positioning brackets 426 move synchronously towards each other under the action of the reducer 421, the servo motor 422, the coupling, and the positive and negative lead screws. The V-shaped press head 429 retracts under the action of the cylinder 4210, and at this time, the clamping and positioning of the idler wheel seat workpiece 10 are completely opened.

[0078] The handling robot component 6 transports the idler wheel seat workpiece 10 to the assembly welding tooling 56 through the main magnet 67 thereon. After the tooling clamps and positions it, the idler wheel seat workpiece 10 is welded at the weld seam under the coordinated action of the welding robot and the two-axis L-shaped turntable 55. After welding is completed, the six-axis handling robot two 66 moves to the front of the idler wheel seat welding component 5, inserts the fork feet 68 into the two cavities of the right single-piece 103 composed of the upper right horizontal plate 1031, the right vertical plate 1032, the right bending plate 1033, and the lower right horizontal plate 1034, and then forks the idler wheel seat workpiece 10 onto the blanking conveyor plate chain 7 to complete the blanking of the workpiece.

[0079] In summary, the excavator idler wheel seat dot welding equipment according to the embodiment of the present invention groups, transports, welds, and blanks the idler wheel seat to be welded and processed, improves the positioning accuracy by repositioning the idler wheel seat, facilitates feeding, and prevents the idler wheel seat to be processed from falling.

[0080] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present invention.

Claims

1. An idler wheel seat spot welding equipment for an excavator, characterized in that, It includes a sample injection component, a secondary positioning component, a support component, an idler wheel seat dotting component, an idler wheel seat welding component, a handling robot component, a blanking conveying plate chain, an electrical control assembly, and a display touch screen. Among them, the secondary positioning component is arranged on one side close to the sample injection component; there are two groups of support components, and one group of the support components is arranged on one side close to the secondary positioning component; the idler wheel seat dotting component is arranged on one side close to the two groups of support components. The idler wheel seat dotting component includes a left single-piece dotting tooling, an idler wheel seat dotting tooling, a right single-piece dotting tooling, and a spot welding robot; the idler wheel seat dotting tooling includes a reducer, a servo motor, a two-axis tilting positioner, a tooling base, a bottom plate positioning block, a positioning bracket, a notch positioning block, a vertical plate positioning block, a V-shaped press head, and a cylinder. Among them, the servo motor is arranged on the two-axis tilting positioner; the reducer is arranged at the output end of the servo motor; the tooling base is arranged on the two-axis tilting positioner; there are two groups of positioning brackets, and the two groups of positioning brackets are respectively movably arranged in the tooling base; the bottom plate positioning block, the notch positioning block, and the vertical plate positioning block are respectively arranged on the positioning bracket; the cylinder is arranged on the tooling base; the V-shaped press head is arranged at the output end of the cylinder; the idler wheel seat welding component is arranged on one side close to the other group of support components; the handling robot component is arranged at the middle position among the sample injection component, the secondary positioning component, the support component, the idler wheel seat dotting component, and the idler wheel seat welding component; the blanking conveying plate chain is arranged on one side of the handling robot component; the electrical control assembly is respectively connected to the idler wheel seat dotting component, the idler wheel seat welding component, and the handling robot component; the display touch screen is arranged on the electrical control assembly.

2. The idler wheel seat dot welding equipment for excavators according to claim 1, characterized in that, The sample injection component includes a rack base, a tray, a material stop, a material stop pin, a guiding positioning pin, and a positioning sleeve. Among them, the rack base and the tray are respectively in multiple groups, and each group of the tray is arranged on the corresponding rack base; the material stop is arranged on the corresponding tray; the material stop pin is arranged on the corresponding tray; the guiding positioning pin is arranged on the rack base; the positioning sleeve is arranged on the tray, and the positioning sleeve is connected to the guiding positioning pin.

3. The idler wheel seat dot welding equipment for excavators according to claim 2, characterized in that The secondary positioning component includes an inclined base, a low positioning block, a side propulsion component, a roller, a high positioning block, and a universal ball. Among them, the inclined base is arranged on one side of the rack base; there are multiple groups of low positioning blocks, and the multiple groups of low positioning blocks are respectively arranged on the top wall of the inclined base; there are two groups of side propulsion components, and the two groups of side propulsion components are respectively arranged on the inclined base; there are multiple groups of rollers, and the multiple groups of rollers are respectively rotatably arranged on the inclined base; there are multiple groups of high positioning blocks, and the multiple groups of high positioning blocks are respectively arranged on the inclined base; there are multiple groups of universal balls, and the multiple groups of universal balls are rotatably arranged on the inclined base.

4. The idler wheel seat stitching and welding equipment for an excavator according to claim 1, wherein, The support component includes a support frame, a wear-resistant plate, and an L-shaped abutting block. Among them, the wear-resistant plate is arranged on the support frame; The L-shaped supporting blocks are multiple groups, and the multiple groups of L-shaped supporting blocks are respectively arranged on the supporting frame.

5. The idler wheel seat spot welding equipment for excavators according to claim 4, characterized in that, The idler wheel seat stitching component includes a left single-piece stitching tooling, an idler wheel seat stitching tooling, a right single-piece stitching tooling, and a spot welding robot. Among them, The left single-piece stitching tooling is arranged on one side close to the supporting frame; The idler wheel seat stitching tooling is arranged on one side of the left single-piece stitching tooling; The right single-piece stitching tooling is arranged on one side of the idler wheel seat stitching tooling; The spot welding robot is arranged on the idler wheel seat stitching tooling.

6. The idler wheel seat dot welding equipment for excavators according to claim 1, characterized in that, The idler wheel seat welding component includes a robot base, a gun cleaning and wire cutting station, a six-axis welding robot, a robot extended welding torch, a two-axis L-shaped turntable, and an assembly welding tooling. Among them, The gun cleaning and wire cutting station is arranged on the robot base; The six-axis welding robot is arranged on the robot base; The robot extended welding torch is arranged at the output end of the six-axis welding robot; The two-axis L-shaped turntable is arranged on one side close to the robot base; The assembly welding tooling is arranged on the two-axis L-shaped turntable.

7. The idler wheel seat dot welding equipment for excavators according to claim 1, characterized in that The handling robot component includes a ground rail frame, a guide rail slider mechanism, a rack, a sliding plate, a driving component, a six-axis handling robot II, a main magnet, fork feet, a gripper frame, and a secondary magnet. Among them, The guide rail slider mechanism is arranged on the ground rail frame; The rack is arranged on the guide rail slider mechanism; The sliding plate is movably arranged on the ground rail frame; The driving component is arranged on the sliding plate; The six-axis handling robot II is arranged at the output end of the driving component; The gripper frame is arranged on the six-axis handling robot II; The main magnet and the secondary magnet are respectively arranged on the gripper frame; The fork feet are two groups, and the two groups of fork feet are respectively arranged on the gripper frame.

8. The idler wheel seat spot welding equipment for excavators according to claim 1, characterized in that, The blanking conveyor chain includes a fixed bottom plate, a conveyor chain, and a conveyor support plate. Among them, The conveyor chain is arranged on the fixed bottom plate; The conveyor support plate is movably arranged on the conveyor chain.

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