Automatic point assembly device for closing a tank

Abstract

The application discloses a kind of automatic point splicing devices of closing box, belong to the technical field of car body manufacturing, including bottom plate positioning mechanism, side plate positioning mechanism, front plate positioning mechanism and welding mechanism, the bottom plate positioning mechanism is used to transport and position box bottom plate, the side plate positioning mechanism is used to transport and position box side plate, the front plate positioning mechanism is used to transport and position box front plate, the box side plate and the box front plate are located at the two sides and front side of the box bottom plate respectively, the box bottom plate, the box side plate and the box front plate are enclosed to present the box of inverted buckle, the welding mechanism is used to weld to splicing point.The application utilizes bottom plate positioning mechanism, side plate positioning mechanism and front plate positioning mechanism to realize the positioning of box bottom plate, box side plate and box front plate respectively, then utilizes welding mechanism to weld to splicing point, can realize the automatic connection and point splicing of box, improve the manufacturing level of box, reduce production cost.

Description

Technical Field

[0001] This invention relates to the field of carriage manufacturing technology, and in particular to an automatic assembly device for carriages, or a carriage splicing and welding device. Background Technology

[0002] With the rapid advancement of global technology, artificial intelligence has become a key force driving the transformation and upgrading of various industries. Particularly in the manufacturing sector, the trends of automation and intelligentization are becoming increasingly significant, greatly improving production efficiency and product quality while effectively reducing labor costs and uncertainties in the production process. Against this backdrop, many aspects of traditional production processes are undergoing profound changes. As a crucial component of the heavy equipment manufacturing industry, the production and assembly of dump truck bodies is no exception, facing an urgent need for transformation and upgrading.

[0003] For a long time, the assembly process of dump truck bodies has faced numerous challenges: First, dimensional control is difficult. Due to the limitations of manual operation or traditional mechanical equipment, significant dimensional deviations often occur during assembly, seriously affecting the overall sealing and structural strength of the truck body. Second, the level of operational standardization is low, with a lack of unified operating standards and procedures, making it difficult to guarantee production efficiency and product quality. Third, process control is complex. Truck body assembly involves the precise docking of multiple components, requiring extremely high levels of process control that traditional methods cannot effectively meet. Fourth, logistics efficiency is low. Under traditional production models, material flow and inventory management are not intelligent enough, increasing production costs and time.

[0004] To address these issues, the industry has been exploring more efficient and precise automation solutions. However, the application of most automated equipment in the dump truck box-closing field remains limited, failing to fully meet the production demands for high precision, high efficiency, and low cost.

[0005] Therefore, developing a workstation capable of achieving precise, rigid, automated connection and assembly of dump truck bodies has become key to improving dump truck manufacturing standards, reducing production costs, and enhancing market competitiveness. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic box assembly device to solve the problems existing in the prior art. It uses a bottom plate positioning mechanism, a side plate positioning mechanism, and a front plate positioning mechanism to position the bottom plate, side plate, and front plate of the box, respectively. Then, a welding mechanism is used to weld the splicing points, which can realize the automatic connection and assembly of the box, improve the manufacturing level of the box, and reduce the production cost.

[0007] To achieve the above objectives, the present invention provides the following solution:

[0008] This invention provides an automatic box assembly device, comprising a bottom plate positioning mechanism, a side plate positioning mechanism, a front plate positioning mechanism, and a welding mechanism. The bottom plate positioning mechanism is used to transport and position the bottom plate of the box, the side plate positioning mechanism is used to transport and position the side plates of the box, and the front plate positioning mechanism is used to transport and position the front plate of the box. The side plates and the front plate are located on the sides and front of the bottom plate of the box, respectively. The bottom plate, the side plates, and the front plate of the box are assembled to form an inverted box body. The welding mechanism is used to weld the splicing points.

[0009] Preferably, the base plate positioning mechanism includes a base plate conveying structure and a gantry beam that is laterally arranged across the base plate conveying structure. The base plate conveying structure includes a conveying roller, a pressing structure arranged along the conveying direction of the conveying roller, and a lifting stop located at the conveying end of the conveying roller. The gantry beam is equipped with a lifting base plate pressing structure and a lateral positioning structure.

[0010] Preferably, the side plate positioning mechanism includes a side plate conveying structure and a side plate clamping and positioning structure. The side plate conveying structure is located on both sides of the bottom plate conveying structure. The conveying direction of the side plate conveying structure is parallel to the conveying direction of the bottom plate conveying structure. The clamping and positioning structure is close to the lifting stop and can be vertically lifted and horizontally moved.

[0011] Preferably, it also includes a side plate adsorption auxiliary positioning structure, which is installed at the end of the gantry beam.

[0012] Preferably, the front plate positioning mechanism includes a front plate conveying structure and a front plate pressing gantry, the front plate conveying structure is provided with a front plate receiving and positioning fixture, and the front plate pressing gantry is provided with a front plate pressing structure.

[0013] Preferably, it also includes a tilting plate, which is installed on the front plate conveying structure, and the front plate receiving and positioning fixture is provided on the closing side of the tilting plate.

[0014] Preferably, the flip plate has a zero-point pin on its opening side, and the front plate positioning mechanism has a zero-point pin seat, wherein the zero-point pin can be rigidly connected to the zero-point pin seat.

[0015] Preferably, the front panel conveying structure is connected to a lifting device, which is used to convey the packaged products.

[0016] Preferably, it further includes a pressing edge positioning structure, which includes a vertical pressing edge structure, a horizontal pressing edge structure and an oblique pressing edge structure. The vertical pressing edge structure faces the bottom plate of the box, the horizontal pressing edge structure faces the side plate of the box, and the oblique pressing edge structure faces the joint between the bottom plate of the box and the side plate of the box.

[0017] Preferably, the welding mechanism includes a welding gantry and a welding robot mounted on the welding gantry.

[0018] The present invention achieves the following technical effects compared to the prior art:

[0019] This invention utilizes a bottom plate positioning mechanism, a side plate positioning mechanism, and a front plate positioning mechanism to position the bottom plate, side plate, and front plate of the container, respectively. Then, a welding mechanism is used to weld the splicing points, which enables automated connection and splicing of the container, improves the manufacturing level of the container, and reduces production costs.

[0020] Other technical solutions included in this invention can also achieve the following technical effects:

[0021] This invention utilizes a bottom plate conveying structure to convey the bottom plate of the box, a side plate conveying structure to convey the side plates of the box, and a front plate conveying structure to convey the front plate of the box, and then positions them separately. It is compatible with the production of boxes of various specifications, and can achieve precise point assembly at the same workstation regardless of the length or width of the box.

[0022] This invention relies on the high-accuracy positioning capability of the servo system to greatly reduce assembly errors, unify production standards, and make process control clearer, thereby achieving a dual improvement in production efficiency and product quality, and providing strong support for the intelligent and automated transformation of dump truck body production. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Here is a structural diagram of the base plate positioning mechanism;

[0025] Figure 2 This is a structural diagram of the gantry beam;

[0026] Figure 3 Here is a structural diagram of the side plate positioning mechanism;

[0027] Figure 4 Here is a structural diagram of the front panel positioning mechanism;

[0028] Figure 5 Diagram showing the zero-point pin setting;

[0029] Figure 6 Diagram for setting up the zero-point pin;

[0030] Figure 7 Diagram of the front panel clamping gantry structure;

[0031] Figure 8 Here is a structural diagram of the edge-pressing positioning mechanism;

[0032] Figure 9 This is a side view of the present invention;

[0033] Figure 10 This is the front view of the present invention;

[0034] Figure 11 Here is a structural diagram of the welding mechanism;

[0035] Figure 12 Here is a structural diagram of the welding robot;

[0036] Among them, 11. Bottom plate conveying structure; 111. Pushing and tightening structure; 112. Lifting stop; 12. Gantry beam; 121. Lateral positioning structure; 122. Bottom plate pressing structure; 21. Side plate conveying structure; 22. Side plate clamping and positioning structure; 23. Side plate adsorption auxiliary positioning structure; 31. Front plate conveying structure; 32. Front plate pressing gantry; 321. Front plate pressing structure; 33. Tilting plate; 331. Front plate receiving and positioning fixture; 332. Zero point pin; 333. Zero point pin seat; 34. Lifting device; 41. Welding gantry; 42. Welding robot; 51. Vertical pressing edge structure; 52. Lateral pressing edge structure; 53. Diagonal pressing edge structure; 61. Box bottom plate; 62. Box side plate; 63. Box front plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The purpose of this invention is to provide an automatic box assembly device to solve the problems existing in the prior art. It uses a bottom plate positioning mechanism, a side plate positioning mechanism, and a front plate positioning mechanism to position the bottom plate, side plate, and front plate respectively, and then uses a welding mechanism to weld the splicing points. This enables automated connection and assembly of the box, improves the manufacturing level of the box, and reduces production costs.

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1-12As shown, this invention provides an automatic box assembly device, or a box splicing and welding device, including a bottom plate positioning mechanism, a side plate positioning mechanism, a front plate positioning mechanism, and a welding mechanism. The bottom plate positioning mechanism is used to transport and position the box bottom plate 61, the side plate positioning mechanism is used to transport and position the box side plates 62, and the front plate positioning mechanism is used to transport and position the box front plate 63. The bottom plate positioning mechanism is located in the middle, the side plate positioning mechanisms are located on both sides of the bottom plate positioning mechanism, and the front plate positioning mechanism is located in front of the bottom plate positioning mechanism. The three positioning mechanisms work together to surround and position the box bottom plate 61, box side plates 62, and box front plate 63, so that the box side plates 62 and box front plate 63 are located on the sides and front of the box bottom plate 61, respectively. Finally, the box bottom plate 61, box side plates 62, and box front plate 63 are assembled into an inverted box. The inverted shape of the box facilitates the movement and positioning of each positioning mechanism, prevents interference, and enables automated operation. After the enclosure is assembled, a welding mechanism is used to weld the joints. This welding mechanism can employ a welding robot 42 for automated welding, improving welding accuracy and reducing manual labor intensity. In summary, this invention utilizes a bottom plate positioning mechanism, a side plate positioning mechanism, and a front plate positioning mechanism to position the bottom plate 61, side plates 62, and front plate 63 of the enclosure, respectively. Then, the welding mechanism is used to weld the joints, enabling automated connection and assembly of the enclosure, improving manufacturing quality, and reducing production costs.

[0041] Combination Figure 1 and Figure 2 As shown, the bottom plate positioning mechanism includes a bottom plate conveying structure 11 and a gantry beam 12 that spans the bottom plate conveying structure 11 laterally. The bottom plate conveying structure 11 may include conveying rollers, a pressing structure 111 arranged along the conveying direction of the conveying rollers, and a lifting stop 112 located at the conveying end of the conveying rollers. The conveying rollers can be arranged in double rows, with a space reserved in the middle for the moving of the pressing structure 111. After the bottom plate 61 is placed on the conveying rollers, the pressing structure 111 can be used to move longitudinally (in the conveying direction) to push the bottom plate 61 to move until it contacts the lifting stop 112. Thus, the lifting stop 112 can be used to achieve longitudinal pressing and positioning. It should be noted that the lifting stop 112 can be lowered after welding to allow the welded boxed product to be moved longitudinally to the next process. The gantry beam 12 is equipped with a lifting and lowering bottom plate clamping structure 122 and a transverse clamping and positioning structure 121. The bottom plate clamping structure 122 vertically clamps and positions the box bottom plate 61, while the transverse positioning structure 121 horizontally clamps and positions the box bottom plate 61 (perpendicular to the conveying direction). In summary, the box bottom plate 61 is clamped and positioned longitudinally, laterally, and vertically, effectively determining its position and preventing displacement during subsequent splicing and welding, thus improving product accuracy.

[0042] Combination Figure 1 and Figure 3 As shown, the side panel positioning mechanism includes a side panel conveying structure 21 and a side panel clamping and positioning structure 22. The side panel conveying structure 21 is located on both sides of the bottom plate conveying structure 11, and its conveying direction is parallel to that of the bottom plate conveying structure 11. The side panel conveying structure 21 conveys the side panels 62 of the box on both sides, thus maintaining the parallelism between the side panels 62 and the bottom plate 61 during the conveying stage, which helps with subsequent assembly. The side panel clamping and positioning structure 22 is located near the lifting stop 112. Through the vertical lifting and lateral movement of the side panel clamping and positioning structure 22, accurate positioning of the side panels 62 is achieved. It should be noted that the side panel conveying structure 21 can use a combination of two cantilever manipulators to convey the side panels 62. The cantilever manipulators can achieve precise positioning of the side panels 62 through a servo mechanism.

[0043] Combination Figure 2 As shown, it may also include a side plate adsorption auxiliary positioning structure 23, which is installed at the end of the gantry beam 12 and is used to assist in positioning the side plate 62 of the box. In other words, in addition to using the side plate clamping positioning structure 22, the side plate adsorption auxiliary positioning structure 23 can also be used at the same time to further improve the positioning accuracy of the side plate 62 of the box.

[0044] Combination Figures 4-7 As shown, the front panel positioning mechanism includes a front panel conveying structure 31 and a front panel clamping gantry 32. The front panel conveying structure 31 can be a rail-mounted conveyor. A front panel receiving and positioning clamp 331 is provided on the front panel conveying structure 31 to receive and fix the front panel 63 of the box for easy transportation. The front panel clamping gantry 32 is located on the outside of the front panel 63 of the box. The front panel clamping gantry 32 is provided with a front panel clamping structure 321. The front panel clamping structure 321 can be a telescopic structure, such as an electric cylinder / hydraulic cylinder clamping device.

[0045] It may also include a tilting plate 33, which is installed on the front plate conveying structure 31 and can be tilted within a 90° range to change the state of the front plate 63 of the box, so that it can be smoothly moved to the box closing position. After reaching the box closing position, it maintains a vertical state and is spliced ​​and connected with the bottom plate 61 and the side plate 62 of the box. The closing side of the tilting plate 33 (the side facing the front plate conveying structure 31) is provided with a front plate receiving and positioning clamp 331. After the tilting plate 33 reaches the box closing position, it is located inside the box body.

[0046] A zero-point pin 332 is provided on the opening side of the flip plate 33 (the side away from the front plate conveying structure 31), and a zero-point pin seat 333 is provided on the front plate positioning mechanism. The zero-point pin 332 can be rigidly connected with the zero-point pin seat 333 to fix the flip plate 33 to the front plate positioning mechanism, so as to ensure that the position of the front plate 63 of the box is fixed.

[0047] This invention utilizes the bottom plate conveying structure 11 to convey the bottom plate 61 of the box, the side plate conveying structure 21 to convey the side plate 62 of the box, and the front plate conveying structure 31 to convey the front plate 63 of the box, and then positions them separately. Thus, the conveying distance of different specifications of boxes can be adjusted through the conveying distance of each conveying structure, thereby enabling the production of boxes of various specifications. Regardless of the length or width of the carriage, precise point assembly can be achieved at the same workstation.

[0048] In this invention, each action mechanism or structure can adopt a high-precision servo system. By relying on the high accuracy positioning capability of the servo system, assembly errors are greatly reduced, production benchmarks are unified, and process control is more clearly defined. This achieves a dual improvement in production efficiency and product quality, providing strong support for the intelligent and automated transformation of dump truck body production.

[0049] Combination Figure 10 As shown, the front panel conveying structure 31 is connected to a lifting device 34. After the box is closed, the lifting device 34 rises, thereby lifting the box. Then, the front panel conveying structure 31 drives the lifting device 34 to move, which can realize the conveying of the closed products and smoothly move the closed products out of the automatic box assembly device.

[0050] Combination Figure 8 and Figure 9 As shown, it also includes edge-pressing and positioning structures, which include a vertical edge-pressing structure 51, a horizontal edge-pressing structure 52, and an oblique edge-pressing structure 53. The vertical edge-pressing structure 51 faces the bottom plate 61, the horizontal edge-pressing structure 52 faces the side plate 62, and the oblique edge-pressing structure 53 faces the joint between the bottom plate 61 and the side plate 62. The edge-pressing structures can be moved by using an electric cylinder or an electro-permanent magnet for pushing and pulling. Through these edge-pressing and positioning structures, the positions of the bottom plate 61, the side plate 62, and the front plate 63, as well as the stability of their joints, are further ensured, thereby improving product quality.

[0051] Combination Figure 11 and Figure 12 As shown, the welding mechanism includes a welding gantry 41 and a welding robot 42 installed on the welding gantry 41. The welding gantry 41 spans the front plate positioning mechanism, the side plate positioning mechanism and the bottom plate positioning mechanism. The welding robot 42 is driven to weld at each splice position by the movement of the welding gantry 41. This can achieve automatic control, ensure welding quality and reduce labor intensity.

[0052] Refer again Figures 1-12 As shown, the present invention provides an embodiment of the automatic box assembly process as follows:

[0053] In the reference diagram, the X, Y, and Z directions correspond to the longitudinal direction (conveying direction), the Y direction to the transverse direction, and the Z direction to the vertical direction.

[0054] Box bottom plate 61 positioning: Box bottom plate 61 is conveyed along the X direction and delivered to the position by conveying rollers (bottom plate conveying structure 11). The X direction of box bottom plate 61 is positioned by lifting stop 112. The box bottom plate 61 is pushed and tightened by the pressing structure 111 to complete the X-direction positioning. The upper side-mounted gantry beam 12 is raised and lowered by servo-driven screw. After it is lowered to the position of box bottom plate 61, the box bottom plate 61 is pressed by the bottom plate pressing structure 122. The box bottom plate 61 is clamped by the transverse positioning structure 121 (clamping), thereby realizing the Y-direction positioning and Z-direction pressing, and completing the positioning of box bottom plate 61.

[0055] Box side panel 62 positioning: The box side panel 62 is conveyed along the X direction and transported to the side panel clamping and positioning structure 22 above it by the cantilever robot (side panel conveying structure 21). It is accurately positioned and stopped in the X direction. The side panel clamping and positioning structure 22 receives the box side panel 62 and clamps and retracts it to the width position required for closing the box, thus achieving Y-direction positioning. The side panel clamping and positioning structure 22 moves up and down to the required position, thus achieving Z-direction positioning.

[0056] Front panel 63 positioning: After the front panel 63 is received and fixed by the front panel receiving and positioning fixture 331, it is rotated 90° by the flipping plate 33 on the front panel conveying structure 31. The zero point pin 332 on the back is locked with the zero point pin seat 333 on the bottom plate positioning mechanism to form a rigid connection. The front panel pressing gantry 32 uses the electric cylinder pushing device (front panel pressing structure 321) to press the edge of the front panel 63. The servo drive gear rack lift is used to complete the pressing and gap elimination of all positions, thereby completing the point splicing of the front panel 63.

[0057] After the above steps, the bottom plate 61, the two side plates 62, and the front plate 63 of the container have all been positioned accordingly. There are also multi-directional pressing and positioning structures (vertical pressing structure 51, horizontal pressing structure 52, and oblique pressing structure 53) to achieve seamless splicing.

[0058] Robotic gantry welding: The welding gantry 41 is guided by a light rail and can move in the X direction by a servo-driven rack and pinion. At the same time, the welding robot 42 can move up and down in the Z direction and laterally in the Y direction by a servo-driven rack and pinion, so as to achieve omnidirectional welding.

[0059] After the box assembly is completed, the zero pin 332 on the front panel conveyor structure 31 is released, and the lifting device 34 below uses a servo-driven screw and chain to achieve three-stage lifting, lifting the assembled product, and the front panel conveyor structure 31 conveys it forward (X direction).

[0060] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An automatic box assembly device, characterized in that: The device includes a bottom plate positioning mechanism, a side plate positioning mechanism, a front plate positioning mechanism, and a welding mechanism. The bottom plate positioning mechanism is used to transport and position the bottom plate of the box. The side plate positioning mechanism is used to transport and position the side plates of the box. The front plate positioning mechanism is used to transport and position the front plate of the box. The front plate positioning mechanism includes a front plate conveying structure, which is equipped with a front plate receiving and positioning fixture. The side plates and the front plate are located on the sides and front of the bottom plate of the box, respectively. The bottom plate, the side plates, and the front plate form an inverted box. The welding mechanism is used to weld the joints. The base plate positioning mechanism includes a base plate conveying structure and a gantry beam that is laterally arranged across the base plate conveying structure. The base plate conveying structure includes a conveying roller, a pushing structure arranged along the conveying direction of the conveying roller, and a lifting stop located at the conveying end of the conveying roller. The gantry beam is equipped with a base plate pressing structure and a lateral positioning structure that can be lifted and lowered. It also includes a pressing edge positioning structure, which includes a vertical pressing edge structure, a horizontal pressing edge structure and an oblique pressing edge structure. The vertical pressing edge structure faces the bottom plate of the box, the horizontal pressing edge structure faces the side plate of the box, and the oblique pressing edge structure faces the joint between the bottom plate of the box and the side plate of the box. It also includes a tilting plate, which is installed on the front plate conveying structure, and the front plate receiving and positioning fixture is provided on the closing side of the tilting plate; The flip plate is provided with a zero-point pin on the opening side, and the front plate positioning mechanism is provided with a zero-point pin seat. The zero-point pin can be rigidly connected to the zero-point pin seat.

2. The automatic box assembly device according to claim 1, characterized in that: The side plate positioning mechanism includes a side plate conveying structure and a side plate clamping and positioning structure. The side plate conveying structure is located on both sides of the bottom plate conveying structure. The conveying direction of the side plate conveying structure is parallel to the conveying direction of the bottom plate conveying structure. The side plate clamping and positioning structure is close to the lifting stop. The side plate clamping and positioning structure can be vertically lifted and horizontally moved.

3. The automatic box assembly device according to claim 1, characterized in that: It also includes a side plate adsorption auxiliary positioning structure, which is installed at the end of the gantry beam.

4. The automatic box assembly device according to claim 1, characterized in that: The front plate positioning mechanism also includes a front plate pressing gantry, which is provided with a front plate pressing structure.

5. The automatic box assembly device according to claim 4, characterized in that: The front panel conveying structure is connected to a lifting device, which is used to convey the packaged products.

6. The automatic box assembly device according to claim 1, characterized in that: The welding mechanism includes a welding gantry and a welding robot installed on the welding gantry.

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