Vertical machining equipment for bending limiter

Abstract

The utility model discloses bending limiter vertical machining equipment which comprises a rack, a sliding platform is arranged on the rack, a Y-axis driving assembly is arranged between the sliding platform and the rack, a rotating platform is arranged on the sliding platform, and an R-axis rotating assembly is arranged between the rotating platform and the sliding platform. A rotating platform is arranged on the rack, a center positioning cylinder is arranged in the middle of the rotating platform, two V-shaped clamping blocks are symmetrically arranged on the rotating platform on the periphery of the center positioning cylinder, a rotating turning device is arranged above the rotating platform, and a Z-axis driving assembly is arranged between the rotating turning device and the rack. According to the utility model, the production efficiency and the manufacturing quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of marine engineering, in particular to vertical processing equipment for a bending limiter. Background Art

[0002] The bend limiter assembly consists of several interconnected and interlocking bend limiter halves. The convex flange at the top of each bend limiter half mates with the concave flange at the rear of the previous bend limiter half. When subjected to external loads, the components self-lock to form a "locked" smooth curve. The bend limiter half is made of a high-strength, high-rigidity cast polyurethane elastomer. During the production process, a casting boss is left at the pouring gate due to the characteristics of the material and process. The pouring gate is usually located at the top of the bend limiter half or at the joint surface between the two bend limiter halves. This casting boss can affect the assembly of the bend limiter assembly. Therefore, the pouring gate boss needs to be turned or milled to achieve installation conditions.

[0003] If the pouring gate boss is set at the mutual fitting surface of the two bending limiter half-tiles, the pouring gate area is large, which will cause a large waste of materials and the milling process of the pouring gate boss is long, which makes it difficult to control costs in the mass production process; if the pouring gate boss is set on the top of the bending limiter half-tile, then during processing, the two bending limiter half-tiles are usually interlocked with bolts and nuts to form a perfect circular structure, which is then turned on a lathe. Since the perfect circular structure needs to be placed horizontally during the processing, this process requires manual handling and has high labor intensity. In addition, the bolts and nuts need to be assembled and disassembled during each turning process. During this process, the bolts and nuts may cause damage to the bending limiter half-tile, and this step is relatively cumbersome, affecting processing efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a vertical processing equipment for a bending limiter, which can effectively improve the production efficiency and enhance the manufacturing quality.

[0005] In order to solve the above technical problems, the utility model provides a vertical processing equipment for a bending limiter, including a frame, a sliding platform is provided on the frame, a Y-axis drive assembly is provided between the sliding platform and the frame, a rotating platform is provided on the sliding platform, an R-axis rotation assembly is provided between the rotating platform and the sliding platform, a center positioning cylinder is provided in the middle of the rotating platform, two V-shaped clamps are symmetrically provided on the rotating platform around the center positioning cylinder, a rotary turning device is provided above the rotating platform, and a Z-axis drive assembly is provided between the rotary turning device and the frame.

[0006] Furthermore, the Y-axis drive assembly includes a Y-axis servo electric cylinder, a Y-axis grating scale and a Y-axis guide rail. One end of the Y-axis servo electric cylinder is connected to the frame shaft, and the other end is connected to the sliding platform shaft. The Y-axis grating scale and Y-axis guide rail are arranged between the frame and the sliding platform.

[0007] Furthermore, the R-axis rotating assembly includes a rotating spindle and a driving motor, the rotating spindle and the driving motor are connected by a pulley mechanism, the rotating spindle and the sliding platform are connected by a bearing, and the rotating spindle and the rotating platform are fixedly connected.

[0008] Furthermore, a mounting bracket is provided at the bottom of the sliding platform, an air slip ring and a sensor are provided on the mounting bracket, an air path joint and a detection trigger are provided at the bottom of the rotating spindle, the detection trigger cooperates with the sensor for detection, and the air path joint is connected to the air slip ring.

[0009] Furthermore, an X-axis drive assembly is arranged between the V-shaped clamp and the rotating platform, and the X-axis drive assembly includes an X-axis slide rail and an X-axis rodless cylinder. The X-axis slide rail is arranged between the V-shaped clamp and the rotating platform, and the X-axis rodless cylinder is arranged on the bottom surface of the rotating platform.

[0010] Furthermore, the surface of the rotating platform is provided with a raised placement block.

[0011] Furthermore, the Z-axis drive assembly includes a Z-axis servo electric cylinder, a Z-axis guide rail and a Z-axis cantilever platform. The Z-axis servo electric cylinder is fixed on the frame, and the Z-axis cantilever platform is connected through the Z-axis guide rail. The Z-axis servo electric cylinder is used to drive the Z-axis cantilever platform to move. The rotary turning device is installed on the Z-axis cantilever platform, and a ranging sensor is also provided at the bottom of the Z-axis cantilever platform.

[0012] Furthermore, a stepped hole is provided at the bottom of the center positioning cylinder, and a locking screw is provided in the center positioning cylinder.

[0013] Furthermore, the frame includes a U-shaped bed and a U-shaped bracket, the Y-axis drive assembly is arranged on the U-shaped bed, the U-shaped bracket is fixed on one side of the top of the U-shaped bed, and the Z-axis drive assembly is arranged on the U-shaped bracket.

[0014] Furthermore, a hanging ring is provided on the top of the U-shaped bed, and a supporting foot is provided on the bottom of the U-shaped bed.

[0015] Beneficial effects of the utility model:

[0016] The V-shaped clamp is combined with the center positioning cylinder, and the placement of the bending limiter does not need to be precise. It can be automatically centered during the clamping process with high centering accuracy, improving the processing quality and having a simple structure. The two bending limiter half-wafer bolts and nuts do not need to be assembled or disassembled, and are fixed by clamping, which is easy to operate and does not have problems such as slipping and damage.

[0017] The bending limiter is placed vertically for processing and can be equipped with corresponding lifting equipment. It does not require manual handling and clamping, reducing the intensity of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the lower structure of the sliding platform of the utility model;

[0020] Figure 3 This is a schematic diagram of the surface structure of the rotating platform of the utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the rotating platform of the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the clamping mechanism of the present utility model;

[0023] Figure 6 It is a structural diagram of the Z-axis drive component part of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1 to 6 As shown, an embodiment of the vertical processing equipment of the bending limiter of the utility model includes a frame 1, a sliding platform 2 is provided on the frame, a Y-axis driving assembly is provided between the sliding platform and the frame, a rotating platform 4 is provided on the sliding platform, an R-axis rotating assembly is provided between the rotating platform and the sliding platform, a center positioning cylinder 6 is provided in the middle of the rotating platform, two V-shaped clamps 7 are symmetrically provided on the rotating platform around the center positioning cylinder, a rotary turning device 8 is provided above the rotating platform, and a Z-axis driving assembly 9 is provided between the rotary turning device and the frame.

[0026] The Y-axis drive assembly is used to drive the sliding platform to move along the Y-axis direction, so that the rotating platform can be moved into the processing area and into the hoisting area. In the hoisting area, the two bend limiter half tiles can be hoisted to the rotating platform between the center positioning cylinder and the two V-shaped clamps with the assistance of hoisting equipment. The bend limiter half tiles can be clamped by the two V-shaped clamps to press the bend limiter half tiles against the outer surface of the center positioning cylinder. There is line contact between the V-shaped clamps and the bend limiter half tiles. During the pushing process, the two bend limiter half tiles can adaptively move toward the center positioning cylinder. Finally, the inner wall of the bend limiter half tile fits with the surface of the center positioning cylinder. The two bend limiter half tiles form a complete bend limiter. Due to the clamping of the V-shaped clamps, the two bend limiter half tiles do not need to be locked. During the placement process, the placement position of the bend limiter half tiles does not need to be precise. The V-shaped clamps cooperate with the center positioning cylinder to achieve centered fixation.

[0027] Among them, the Y-axis drive assembly includes a Y-axis servo electric cylinder 10, a Y-axis grating ruler 11 and a Y-axis guide rail 12. One end of the Y-axis servo electric cylinder is connected to the frame shaft, and the other end is connected to the sliding platform shaft. The Y-axis grating ruler and the Y-axis guide rail are arranged between the frame and the sliding platform. The use of the Y-axis servo electric cylinder and the Y-axis grating ruler can improve the displacement accuracy. The Y-axis servo electric cylinder is fixed by shaft connection to reduce sticking.

[0028] The R-axis rotating assembly can drive the rotating platform to rotate, and the rotating platform drives the bending limiter clamped in the V-shaped clamping block and the center positioning cylinder to rotate.

[0029] Specifically, the R-axis rotation assembly includes a rotating spindle 13 and a driving motor 14. The rotating spindle and the driving motor are connected by a pulley mechanism 15, and the rotating spindle and the sliding platform are connected by bearings. The rotating spindle and the rotating platform are fixedly connected. The driving motor rotates, and the rotating spindle is driven to rotate by the pulley mechanism, thereby realizing the rotation of the rotating platform. The structure is simple and the operation is stable.

[0030] An X-axis drive assembly is provided between the V-shaped clamp and the rotating platform. The X-axis drive assembly includes an X-axis slide 21 and an X-axis rodless cylinder 22. The X-axis slide is provided between the V-shaped clamp and the rotating platform, and the X-axis rodless cylinder is provided on the bottom surface of the rotating platform. The X-axis rodless cylinder is provided at a position that can effectively avoid the complicated surface structure of the rotating platform. Driven by the X-axis rodless cylinder, the V-shaped clamp can move toward or away from the center positioning cylinder, and the control is simple. Since the bending limiter half-tile is pushed and moved during the fixing process, a raised placement block 23 is provided on the surface of the rotating platform so that the bending limiter half-tile contacts the raised placement block, has a smaller contact area, and moves smoothly.

[0031] A mounting bracket 16 is provided at the bottom of the sliding platform, on which an air slip ring 17 and a sensor 18 are provided. An air circuit connector 19 and a detection trigger 20 are provided at the bottom of the rotating spindle. The detection trigger cooperates with the sensor for detection, and the air circuit connector is connected to the air slip ring to rotate the spindle.

[0032] Furthermore, the Z-axis drive assembly includes a Z-axis servo electric cylinder 24, a Z-axis guide rail 25, and a Z-axis cantilever platform 26. The Z-axis servo electric cylinder is fixed to the frame, and the Z-axis cantilever platform is connected via the Z-axis guide rail. The Z-axis servo electric cylinder is used to drive the Z-axis cantilever platform to move, and the rotary turning device is installed on the Z-axis cantilever platform. The Z-axis servo electric cylinder drives the Z-axis cantilever platform to move up and down, and a Z-axis grating ruler can also be installed here to improve the movement accuracy. A distance sensor 261 is also provided at the bottom of the Z-axis cantilever platform. Before processing, it can detect the height of the half-tile pouring gate of the bending limiter to avoid tool collision caused by inconsistent pouring gate height, and accurately measure the height before processing. This can avoid the existence of empty tools during turning and improve processing efficiency. The distance sensor can also adopt a telescopic structure. It can be extended and retracted to measure the height before processing and retracted during processing to avoid waste chips from interfering with or damaging the laser distance sensor during the turning process. The extension and retraction can save the moving length in the Y-axis direction, and the structure is compact, and the equipment can be miniaturized.

[0033] Since different bending limiters have different inner diameters, the center positioning cylinder is designed as a replaceable structure. A step hole 27 is provided at the bottom of the center positioning cylinder. The step hole can be directly mounted on the convex part of the corresponding installation position, which can be the convex part of the rotating platform or the convex part of the rotating main shaft, so as to perform center positioning, and then use the locking screw 28 provided in the center positioning cylinder for locking, which is convenient and reliable to operate.

[0034] Because the bottom of the sliding platform has many mechanisms, the frame is designed to include a U-shaped bed 29 and a U-shaped bracket 30. The U-shaped bed provides a larger installation space. The Y-axis drive assembly is installed on the U-shaped bed, the U-shaped bracket is fixed to one side of the top of the U-shaped bed, and the Z-axis drive assembly is installed on the U-shaped bracket. A lifting ring 31 is provided on the top of the U-shaped bed, and a support leg 32 is provided at the bottom of the U-shaped bed.

[0035] In the above structure, the vertical design allows the bend limiter to be turned into the top pouring port, minimizing machining allowances, improving machining efficiency, and saving materials. Because the bend limiter's machining accuracy is measured in millimeters, the Z- and Y-axis motion drives utilize servo electric cylinders, making installation and commissioning simpler than traditional ball screws, and making subsequent maintenance or replacement easier. Both the Z and Y axes can be equipped with linear scales, and the drive motor operates in closed-loop control, adjusting according to the system's actual output state to achieve precise control of the system. Overall operation utilizes electrified and automated control, requiring minimal operator skill. The high degree of automation allows for one-person operation, significantly simplifying personnel requirements compared to the previous single-step bolt installation and removal and clamping and turning operations.

[0036] When the above device is in use, first place the two bend limiter half-tiles to be processed on the rotating platform of the R-axis through the lifting equipment, enter the model of the bend limiter to be processed on the electrical control system, and click to confirm to start processing; the V-shaped sliders on both sides clamp the bend limiter half-tiles toward the middle, and after clamping, the two bend limiter half-tiles cooperate to form a bend limiter, and the Y-axis starts to move forward to the specified position, and the Z-axis is driven to descend to a predetermined safe height, then the distance sensor extends and measures the height of the bend limiter before processing. After the measurement is completed, the distance sensor retracts and the rotary turning device starts to rotate, driving the milling cutter to rotate and turn;

[0037] Specifically, the Y-axis drives back a certain distance to the installation distance, the Z-axis drives down to the first turning height, and the Y-axis drives forward again. After the milling cutter touches the bend limiter gate, the R-axis rotation assembly drives the rotation, and one circle of the gate is processed. If the height does not reach the specified height after processing, the Z-axis drives to continue to descend a certain height, and the operation is repeated until the processing is completed.

[0038] Finally, the Z-axis is driven to rise to a safe height, the Y-axis is driven to retract and the V-shaped slider is opened outward. The completed bending limiter is lifted off by the lifting equipment and the two bending limiters to be processed are re-lifted.

[0039] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A vertical processing equipment for bending limiters, characterized in that: It includes a frame, a sliding platform is provided on the frame, a Y-axis driving assembly is provided between the sliding platform and the frame, a rotating platform is provided on the sliding platform, an R-axis rotating assembly is provided between the rotating platform and the sliding platform, a center positioning cylinder is provided in the middle of the rotating platform, two V-shaped clamps are symmetrically provided on the rotating platform around the center positioning cylinder, a rotary turning device is provided above the rotating platform, and a Z-axis driving assembly is provided between the rotary turning device and the frame.

2. The vertical processing equipment for bending limiters according to claim 1, characterized in that: The Y-axis drive assembly includes a Y-axis servo electric cylinder, a Y-axis grating ruler and a Y-axis guide rail. One end of the Y-axis servo electric cylinder is connected to the frame shaft, and the other end is connected to the sliding platform shaft. The Y-axis grating ruler and Y-axis guide rail are arranged between the frame and the sliding platform.

3. The vertical processing equipment for bending limiters according to claim 1, characterized in that: The R-axis rotating assembly includes a rotating spindle and a driving motor. The rotating spindle and the driving motor are connected via a pulley mechanism. The rotating spindle and the sliding platform are connected via a bearing. The rotating spindle and the rotating platform are fixedly connected.

4. The vertical processing equipment for bending limiters according to claim 3, characterized in that: A mounting bracket is provided at the bottom of the sliding platform, an air slip ring and a sensor are provided on the mounting bracket, an air path joint and a detection trigger are provided at the bottom of the rotating spindle, the detection trigger cooperates with the sensor for detection, and the air path joint is connected to the air slip ring.

5. The vertical processing equipment for bending limiters according to claim 1, characterized in that: An X-axis drive assembly is arranged between the V-shaped clamp and the rotating platform. The X-axis drive assembly includes an X-axis slide rail and an X-axis rodless cylinder. The X-axis slide rail is arranged between the V-shaped clamp and the rotating platform, and the X-axis rodless cylinder is arranged on the bottom surface of the rotating platform.

6. The vertical processing equipment for bending limiters according to claim 1, characterized in that: The surface of the rotating platform is provided with a heightening placement block.

7. The vertical processing equipment for bending limiters according to claim 1, characterized in that: The Z-axis drive assembly includes a Z-axis servo electric cylinder, a Z-axis guide rail and a Z-axis cantilever platform. The Z-axis servo electric cylinder is fixed on the frame, and the Z-axis cantilever platform is connected through the Z-axis guide rail. The Z-axis servo electric cylinder is used to drive the Z-axis cantilever platform to move. The rotary turning device is installed on the Z-axis cantilever platform, and a ranging sensor is also provided at the bottom of the Z-axis cantilever platform.

8. The vertical processing equipment for bending limiters according to claim 1, characterized in that: A stepped hole is provided at the bottom of the center positioning cylinder, and a locking screw is provided in the center positioning cylinder.

9. The vertical processing equipment for bending limiters according to claim 1, characterized in that: The frame includes a U-shaped bed and a U-shaped bracket, the Y-axis drive assembly is arranged on the U-shaped bed, the U-shaped bracket is fixed on one side of the top of the U-shaped bed, and the Z-axis drive assembly is arranged on the U-shaped bracket.

10. The vertical processing equipment for bending limiters according to claim 9, characterized in that: A hanging ring is provided on the top of the U-shaped bed, and a supporting foot is provided on the bottom of the U-shaped bed.

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