Group head lifting wheel type power rotation seam finding mechanism

Abstract

The utility model discloses a kind of group pair head lifting wheel type power rotary seam-finding mechanism, including the tooling plate for placing the group pair head to be used, for horizontal conveying the conveying assembly of the tooling plate, respectively in the entrance end and the exit end of the conveying assembly The connection component, lifting rotary assembly;Conveying assembly includes hollow frame, conveying chain, conveying drive motor;Connection component is the roller conveyor of liftable, housed in the frame of conveying assembly, and conveying direction is perpendicular with the conveying direction of conveying assembly;The lifting rotary assembly includes chassis, lifting drive part, lifting frame, synchronization mechanism, power roller group;When lifting frame rises, power roller group and the circumferential side surface of head rolling contact, drive its rotary seam-finding.This structure is high in degree of automation, seam-finding precision is good, and it is stable and safe in operation.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology for large container assembly, and in particular to a lifting wheel-type power rotation seam-finding mechanism for assembly heads. Background Technology

[0002] In the manufacturing process of large equipment such as pressure vessels and storage tanks, the assembly and welding of the end caps to the shell is a critical step. Before this step, the end caps need to be transported to the assembly station and their circumferential position precisely adjusted so that the weld joint on the end cap aligns with the weld joint on the shell; this process is called "joint finding." Currently, common joint finding methods rely on overhead cranes for hoisting combined with manual pushing, or simple roller conveyors for manual rotation. These methods suffer from low automation, high labor intensity for workers, poor positioning accuracy, low efficiency, and safety hazards. Especially for large end caps, their weight makes manual adjustment extremely difficult and they are prone to damage from impacts. Therefore, there is an urgent need for a specialized device that can automatically transport, precisely position, and drive the end caps to rotate automatically for joint finding. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a pairing end cap lifting wheel type power rotation joint finding mechanism with high automation, good joint finding accuracy, stable operation and safety.

[0004] The technical solution of this utility model is: The assembly end cap lifting wheel type power rotary seam finding mechanism of this utility model is characterized by: It includes a tooling plate for placing the end caps to be assembled, a conveying assembly for horizontally conveying the tooling plate, connecting assemblies respectively located at the inlet and outlet ends of the conveying assembly, and a lifting and rotating assembly; The conveying assembly includes a hollow frame, conveying chains disposed on both sides of the frame in the conveying direction, and a conveying drive motor for driving the conveying chains to move. The connecting component is a liftable roller conveyor, housed inside the frame of the conveying component, and its conveying direction is perpendicular to the conveying direction of the conveying component. The lifting and rotating assembly includes: Base frame; The lifting drive component has its cylinder fixed on the base frame; The lifting frame is connected to the output end of the lifting drive component and is driven to lift. A synchronization mechanism is connected between the base frame and the lifting frame; At least one set of powered rollers is installed on the lifting frame; when the lifting frame is raised, the powered rollers make rolling contact with the circumferential side of the end cap to be assembled, so as to drive it to rotate for seam finding.

[0005] This structure achieves full automation of the end cap process from loading, conveying, positioning, and rotational seam finding through the coordinated work of the connecting components, conveying components, stop cylinders, and lifting and rotating components, significantly reducing manual labor intensity and operational risks.

[0006] Furthermore, the assembly head lifting wheel type power rotation seam-finding mechanism of this utility model also includes a set of unpowered rollers; the lifting frame includes a horizontally arranged base plate and two lateral support parts fixed thereon, the powered roller set and the unpowered roller set are respectively installed on the two lateral support parts, and together they roll in contact with the circumferential side of the end cap to be assembled. This structure forms a double-sided clamping and support for the end cap, with one side providing power drive and the other side providing follow-up support, together forming a stable rotation system, effectively preventing the end cap from swaying or shaking during rotation, ensuring the stability and safety of rotation.

[0007] Furthermore, in the assembled end cap lifting wheel type power rotary joint-finding mechanism described in this utility model, the rollers of the powered roller group and the unpowered roller group are symmetrically arranged about the center line of the conveying assembly along the conveying direction. This symmetrical layout ensures that the driving force and supporting force are evenly applied to the end cap, allowing the end cap to rotate stably around its center, avoiding jamming or deviation caused by uneven force, and further improving the joint-finding accuracy.

[0008] Furthermore, in the assembled end cap lifting wheel type power rotary joint-finding mechanism described in this utility model, the power roller group includes multiple rollers and a roller drive motor; a driving sprocket is sleeved on the output shaft of the roller drive motor, and a driven sprocket is sleeved on each roller; a transmission chain is sleeved between the driving sprocket and all the driven sprockets. This transmission scheme can synchronously drive multiple rollers with a single motor and a single chain, has a compact structure, high transmission efficiency, and ensures that the linear speed of all driving rollers is consistent, thereby providing a smooth and uniform driving force for the end cap.

[0009] Furthermore, in the assembly head lifting wheel type power rotation seam-finding mechanism described in this utility model, the synchronization mechanism includes four transmission boxes fixed to the base frame, each containing a vertical rack fixedly connected to the lifting frame; a transmission shaft connects two adjacent transmission boxes, and gears meshing with the racks are provided at both ends of the transmission shaft. This mechanism forces the gears at the four corners to be mechanically synchronized through a network of transmission shafts, ensuring that the lifting frame remains horizontal during lifting and lowering, preventing the lifting frame from tilting and jamming, ensuring that the end cap is smoothly lifted and lowered, and ensuring reliable operation.

[0010] Furthermore, in the assembly head lifting wheel type power rotation seam finding mechanism described in this utility model, the lifting drive component is a lifting cylinder.

[0011] Furthermore, in the assembly head lifting wheel type power rotation seam finding mechanism described in this utility model, two clamping cylinders for clamping the tooling plate are respectively placed on both sides of the frame of the conveying component along its conveying direction. This can firmly clamp the tooling plate on the conveyor frame before rotation seam finding, effectively preventing the tooling plate from moving when the head rotates.

[0012] Furthermore, in the assembly head lifting wheel type power rotation seam finding mechanism described in this utility model, the conveying assembly is equipped with a first stop cylinder and a second stop cylinder; along the conveying direction of the conveying assembly, the first stop cylinder is located upstream of the connecting assembly, and the second stop cylinder is located downstream of the lifting and rotating assembly. The first stop cylinder plays a one-way anti-reverse function, preventing the tooling plate from retreating and ensuring the smooth one-way progress of the process; the second stop cylinder is used for precise positioning, ensuring that the tooling plate and the end cap can stop at the precise working position of the lifting and rotating assembly each time, ensuring the consistency of the operation.

[0013] The beneficial effects of this utility model are: 1. This utility model achieves full automation of the end cap manufacturing process from placement and positioning to seam finding through the coordinated action of various components including connection, conveying, stopping, pressing, lifting, and rotation, replacing the traditional inefficient manual hoisting and adjustment mode. A stable rotation mechanism driven by a powered roller group and supported by a non-powered roller group, combined with precise positioning and stopping, enables rapid and accurate adjustment of the end cap's circumferential position, greatly improving the accuracy and efficiency of seam finding.

[0014] 2. This utility model adopts a layout in which the connecting components and lifting and rotating components are embedded in the conveyor frame, which makes full use of space and highly integrates the various functional modules in space, forming a compact integrated structure and significantly reducing the overall footprint of the equipment.

[0015] 3. This utility model operates smoothly and reliably with good safety. The lifting and rotating assembly adopts a rigid gear and rack synchronous lifting mechanism and a stable base frame, combined with the clamping function of the conveying assembly, to form a high-rigidity worktable, ensuring extremely stable operation of the end cap during lifting and rotation. Simultaneously, the various functional components are interconnected through a linkage control logic, effectively eliminating the risk of accidental movement of the workpiece during conveying and processing, thus improving the safety level of the equipment. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the present utility model.

[0017] Figure 2 This is a right-side view of the present invention.

[0018] Figure 3This is a top view of the present invention when the tooling plate is not being conveyed. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings: Reference Figures 1-3 As shown, the assembly head lifting wheel type power rotation seam finding mechanism described in this embodiment includes a tooling plate 2 for placing the end caps 1 to be assembled, a conveying assembly 3 for horizontally conveying the tooling plate 1, a connecting assembly 4 respectively located at the inlet end and the outlet end of the conveying assembly 3, and a lifting and rotating assembly 5.

[0020] The conveying assembly 3 includes a hollow frame 31, conveying chains 32 disposed on both sides of the frame 31 in the conveying direction, and a conveying drive motor 33 for driving the conveying chains 32.

[0021] The connecting component 4 is a liftable roller conveyor, housed inside the frame 31 of the conveying component 3, and its conveying direction is perpendicular to the conveying direction of the conveying component 3.

[0022] The lifting and rotating assembly 5 includes a base frame 51, lifting cylinders 52, a lifting frame 53, a synchronization mechanism 54, a set of powered rollers 55, and a set of unpowered rollers 56. The lifting cylinders 52 are two symmetrically distributed cylinders, their cylinder bodies fixed to the base frame 51, and their output ends connected to the lifting frame 53, driving the lifting frame 53 to rise and fall. The lifting frame 53 includes a horizontally arranged base plate and two lateral support parts 531 vertically fixed thereon. The powered rollers 55 and the unpowered rollers 56 are respectively mounted on the two lateral support parts 531. When the lifting frame 53 rises, they collectively roll in contact with the circumferential side of the end cap 1 to be assembled, driving its rotation for seam-finding operations.

[0023] The powered roller assembly 55 includes two rollers and a roller drive motor 551. A drive sprocket is mounted on the output shaft of the roller drive motor 551, and a driven sprocket is mounted on each roller. A transmission chain 552 is connected between the drive sprocket and all the driven sprockets. The rollers of the powered roller assembly 55 and the unpowered roller assembly 56 are arranged symmetrically about the centerline of the conveying assembly 3 along the conveying direction.

[0024] The synchronization mechanism 54 is connected between the base frame 51 and the lifting frame 53, and includes four transmission boxes 541 fixed on the four corners of the base frame 51. Each transmission box 541 has a vertical rack 542 fixedly connected to the bottom plate of the lifting frame 53. A transmission shaft 543 is connected between two adjacent transmission boxes 541. The two ends of the transmission shaft 543 are provided with gears. The gears extend into the transmission box 541 and mesh with the racks 542 to form a four-corner synchronous lifting structure.

[0025] On the frame 31 of the conveying assembly 3, two clamping cylinders 6 are respectively arranged on both sides along its conveying direction for clamping the tooling plate 2. In addition, the conveying assembly 3 is also provided with a first stop cylinder 7 and a second stop cylinder 8; along the conveying direction of the conveying assembly 3, the first stop cylinder 7 is located upstream of the connecting assembly 4, and the second stop cylinder 8 is located downstream of the lifting and rotating assembly 5.

[0026] Its workflow is as follows: 1. Loading and Connecting: The connecting assembly 4 (i.e., the lifting roller conveyor) is raised so that its roller surface is slightly higher than the conveyor chain 32, receiving the tooling plate 2 carrying the end cap 1 fed in by the external conveyor line. At this time, the first stop cylinder 7 located upstream of the connecting assembly 4 rises, acting as a check barrier to prevent the tooling plate 2 from moving backward along the conveying direction of the conveyor assembly 3 during the docking process or under unexpected external force. The connecting assembly 4 starts, rotating its roller conveyor perpendicular to the conveyor assembly 3, and laterally conveying the tooling plate 2 above the conveyor chain 32 of the conveyor assembly 3.

[0027] 2. Conveying and Positioning: The connecting component 4 descends, and the tooling plate 2 falls completely onto the conveyor chain 32. The conveyor drive motor 33 starts, carrying and driving the tooling plate 2 towards the lifting and rotating component 5 via the conveyor chain 32. After the tooling plate 2 has completely passed the lifting and rotating component 5, it is stopped by the second stop cylinder 8 and stops at the precise rotating seam-finding working position.

[0028] 3. Pressing and preparing for rotation: After the tooling plate 2 is in place, the pressing cylinders 6 on both sides of the conveying assembly 3 are activated to press down the edge of the tooling plate 2 and fix it firmly on the frame 31 to prevent it from shifting.

[0029] 4. Lifting and Rotation for Weld Seam Finding: The lifting and rotating assembly 5 begins operation: the lifting cylinder 52 actuates, driving the lifting frame 53 to move smoothly and horizontally upwards via a synchronization mechanism 54 consisting of a transmission box 541, rack 542, transmission shaft 543, and gears. The powered roller assembly 55 and the unpowered roller assembly 56, fixed to it, rise accordingly, clamping and pressing the circumferential sides of the end cap 1 from both sides. When the lifting frame 53 continues to rise to the working height, the end cap 1 is completely lifted by the roller assembly, causing its bottom to disengage from the tooling plate 2 below, thus separating the end cap 1 from the tooling plate 2. Subsequently, the roller drive motor 551 of the powered roller assembly 55 starts, driving multiple rollers to rotate synchronously via the driving sprocket, transmission chain 552, and all driven sprockets, using friction to drive the end cap to rotate. Operators or a vision system can then locate and connect the weld seam during the rotation process.

[0030] 5. Reset and Unloading: After the seam is found, the power roller assembly 55 stops rotating, the lifting cylinder 52 retracts, driving the lifting frame 53 and roller assembly to descend, allowing the end cap 1 to smoothly fall back onto the tooling plate 2. The clamping cylinder 6 retracts to release the clamping, and the second-position stop cylinder 8 descends to release. The conveyor drive motor 33 restarts, conveying the tooling plate 2 with the seam found to the next process. All components are reset, awaiting the next work cycle.

[0031] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed herein are still covered by the claims of this utility model.

Claims

1. A wheel-type power rotary joint-finding mechanism for assembling end caps, characterized in that: It includes a tooling plate for placing the end caps to be assembled, a conveying assembly for horizontally conveying the tooling plate, connecting assemblies respectively located at the inlet and outlet ends of the conveying assembly, and a lifting and rotating assembly; The conveying assembly includes a hollow frame, conveying chains disposed on both sides of the frame in the conveying direction, and a conveying drive motor for driving the conveying chains to move. The connecting component is a liftable roller conveyor, housed inside the frame of the conveying component, and its conveying direction is perpendicular to the conveying direction of the conveying component. The lifting and rotating assembly includes: Base frame; The lifting drive component has its cylinder fixed on the base frame; The lifting frame is connected to the output end of the lifting drive component and is driven to lift. A synchronization mechanism is connected between the base frame and the lifting frame; At least one set of powered rollers is installed on the lifting frame; when the lifting frame is raised, the powered rollers roll into contact with the circumferential side of the end cap to be assembled, so as to drive it to rotate for seam finding.

2. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 1, characterized in that: It also includes a set of non-powered rollers; the lifting frame includes a horizontally arranged base plate and two lateral support parts fixed thereon, the powered rollers and the non-powered rollers are respectively installed on the two lateral support parts, and together they roll in contact with the circumferential side of the end cap to be assembled.

3. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 2, characterized in that: The rollers of the powered roller group and the unpowered roller group are arranged symmetrically about the center line of the conveying assembly along the conveying direction.

4. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 2 or 3, characterized in that: The power roller assembly includes multiple rollers and a roller drive motor; a drive sprocket is mounted on the output shaft of the roller drive motor, and a driven sprocket is mounted on each roller; a transmission chain is mounted between the drive sprocket and all the driven sprockets.

5. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 1, characterized in that: The synchronization mechanism includes four transmission boxes fixed to the base frame, each containing a vertical rack that is fixedly connected to the lifting frame; a transmission shaft is connected between two adjacent transmission boxes, and gears that mesh with the racks are provided at both ends of the transmission shaft.

6. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 1, characterized in that: The lifting drive component is a lifting cylinder.

7. The assembly head lifting wheel type power rotary joint-finding mechanism according to claim 1, characterized in that: On the frame of the conveying assembly, two clamping cylinders for clamping the tooling plate are respectively placed on both sides along its conveying direction.

8. The assembly head lifting wheel type power rotary joint finding mechanism according to claim 1, characterized in that: The conveying assembly is equipped with a first stop cylinder and a second stop cylinder; along the conveying direction of the conveying assembly, the first stop cylinder is located upstream of the connecting assembly, and the second stop cylinder is located downstream of the lifting and rotating assembly.

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