A heavy workpiece flipping and positioning device

Abstract

This utility model discloses a heavy workpiece flipping and positioning device, which includes a flipping mechanism and a fixing mechanism. The flipping mechanism includes a flipping table base fixed to the ground, a translation base, and a flipping table for carrying the workpiece. The translation base is slidably connected to the flipping table base via a slider, a linear guide rail, and a moving component. One end of the flipping table is rotatably connected to one end of the translation base. Two relatively parallel multi-stage pushing components are arranged between the flipping table and the translation base. The output end of the multi-stage pushing component is hinged to the bottom end face of the flipping table, and the fixed end of the multi-stage pushing component is hinged to the top end face of the translation base. Multiple limiting blocks are respectively arranged at the flipping table positions on the adjacent two sides of the workpiece. Multiple support blocks for supporting the workpiece are provided on the top surface of the flipping table. This utility model solves the technical problems of high labor intensity and safety hazards for operators, poor positioning accuracy, and poor clamping stability in the field of heavy workpiece flipping technology.

Description

Technical Field

[0001] This utility model relates to the technical field of heavy workpiece flipping, and specifically to a heavy workpiece flipping and positioning device. Background Technology

[0002] In the process of my country's industrial manufacturing transformation towards high-end and intelligent manufacturing, the market demand for large industrial equipment such as excavators and cranes continues to grow. The machining accuracy of core components, such as the excavator frame and the crane slewing bearing, directly determines the overall performance of the equipment. Taking the excavator frame as an example, as the core of the machine's load-bearing structure, after welding, it requires precision machining such as milling and boring of key positions like bearing mounting surfaces and pin mating holes. These machining surfaces are distributed on different sides and end faces of the component, requiring multiple rotations to adjust the workpiece's posture to complete all-round machining. Currently, the industry relies heavily on traditional cranes with lifting devices or simple tooling for rotating such heavy-duty components. This not only causes the workpiece to wobble and shift during rotation, leading to deviations in subsequent machining references and affecting assembly accuracy, but also results in a high proportion of auxiliary time, making it difficult to adapt to the high-efficiency production requirements of automated production lines.

[0003] Traditional flipping methods lack precise positioning benchmarks and stable clamping mechanisms, failing to meet the positioning error requirements of machining benchmarks. This frequently results in workpieces needing to be readjusted, increasing the workload of operators and easily causing scratches on the workpiece surface due to repeated adjustments. Furthermore, some simple flipping devices have limited load-bearing capacity, making them unsuitable for the increasingly larger and heavier parts, and the flipping process requires multiple operators, posing significant safety hazards. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a heavy workpiece flipping and positioning device to solve the technical problems of high labor intensity and safety hazards for operators, poor positioning accuracy and poor clamping stability in the field of heavy workpiece flipping technology.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a heavy workpiece flipping and positioning device, comprising:

[0006] A flipping mechanism and a fixing mechanism are provided; the flipping mechanism includes a flipping table base fixed to the ground, a translation base, and a flipping table for carrying the workpiece; the translation base is slidably connected to the flipping table base via a slider, a linear guide rail, and a moving component; one end of the flipping table is rotatably connected to one end of the translation base, wherein two relatively parallel multi-stage pushing components are provided between the flipping table and the translation base; the output end of the multi-stage pushing component is hinged to the bottom end face of the flipping table; the fixed end of the multi-stage pushing component is hinged to the top end face of the translation base; multiple limiting blocks are respectively provided at the flipping table positions corresponding to the two adjacent sides of the workpiece; multiple support blocks for supporting the workpiece are provided on the top end face of the flipping table.

[0007] Compared with the prior art, the beneficial effects of this utility model include:

[0008] 1. Significantly improves positioning accuracy and ensures processing quality: This device uses a hydraulic cylinder as the driving source for tilting. With the smooth and controllable nature of hydraulic transmission and the zero-drift locking function of hydraulic lock, it effectively avoids the problems of workpiece shaking and reference offset caused by traditional crane tilting or simple tooling.

[0009] 2. Enhance safety protection capabilities and reduce operational risks: The device does not require multiple people to operate together, reducing the frequency of manual contact with heavy-duty workpieces and significantly reducing safety hazards at industrial processing sites. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the heavy workpiece flipping and positioning device provided by this utility model;

[0011] Figure 2 This is a three-dimensional structural diagram of the flipping mechanism provided by this utility model;

[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of the flipping table provided by this utility model. Figure 1 ;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of the flipping table provided by this utility model. Figure 2 ;

[0014] Figure 5 This is a three-dimensional structural diagram of the fixing mechanism provided by this utility model;

[0015] Figure 6 This is a schematic diagram of the working mechanism of the fixing mechanism provided by this utility model;

[0016] Figure 7 This is a schematic diagram of the tilting table provided by this utility model in a horizontal state. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 This embodiment provides a heavy workpiece flipping and positioning device, including a flipping mechanism 1, a fixing mechanism 2, an exchange table 4, and a conveying logistics vehicle 5.

[0021] Furthermore, the flipping mechanism 1 includes a flipping table base 11 fixed to the ground D, a translation base 12, and a flipping table 13 for carrying the workpiece.

[0022] Furthermore, the translation base 12 is slidably connected to the tilting platform base 11 via a slider 121, a linear guide rail 122, and a moving assembly 123. The linear guide rail 122 is fixed to the upper end face of the tilting platform base 11, the slider 121 is slidably connected to the linear guide rail 122, and the upper end face of the slider 121 is fixedly connected to the lower end face of the translation base 12. When an external force pushes the translation base 12, the translation base 12 moves relative to the tilting platform base 11 along its length direction.

[0023] In this embodiment, the translation base 12 is welded from steel pipes and steel plates.

[0024] Furthermore, one end of the flipping platform 13 is rotatably connected to one end of the translation base 12, wherein two relatively parallel multi-stage pushing components 14 are provided between the flipping platform 13 and the translation base 12, the output end of the multi-stage pushing component 14 is hinged to the bottom end face of the flipping platform 13, and the fixed end of the multi-stage pushing component 14 is hinged to the top end face of the translation base 12.

[0025] In this embodiment, the flipping table 13 is rotatably connected to the translation base 12 by setting bearing seats. A rotating rod is fixedly connected to the back of the flipping table 13. Two bearing seats are arranged opposite to each other and fixed to the upper end of the translation base 12. The two ends of the rotating rod are placed in the bearing seats to realize the relative rotation between the flipping table 13 and the translation base 12.

[0026] Furthermore, when the multi-stage pushing component 14 is in a retracted state, the flipping table 13 is in a horizontal state, and when the multi-stage pushing component 14 is in an extended state, the flipping table 13 is in a vertical state relative to the translation base 12.

[0027] Furthermore, in this embodiment, the multi-stage push assembly 14 is a multi-stage hydraulic cylinder. The core advantage of the multi-stage hydraulic cylinder in this embodiment is its high thrust output capability under heavy load conditions and high stability during operation, which can accurately match the turning requirements of large components (such as the frame in an excavator).

[0028] Furthermore, multiple limiting blocks 131 are respectively provided at the positions of the flipping table 13 on the two adjacent sides of the workpiece 3, and multiple support blocks 132 for supporting the workpiece are provided on the top surface of the flipping table 13.

[0029] Furthermore, the cross-section of the limiting block 131 is inverted L-shaped, which is used to limit the workpiece 3.

[0030] Furthermore, the moving component 123 includes a drive gear plate 1231 and a moving drive source 1232. The fixed end of the moving drive source 1232 is fixedly connected to the translation base 12, and the output end of the moving drive source 1232 is driven and connected to a drive gear 1233. The drive gear plate 1231 is fixedly connected to the upper end face of the tilting table base 11, and the drive gear 1233 is driven and connected to the drive gear plate 1231 by tooth meshing.

[0031] In this embodiment, the mobile drive source 1232 is a motor.

[0032] Furthermore, when the mobile drive source 1232 is working, it drives the drive gear 1233 to rotate. Since the drive gear 1233 meshes with the drive gear plate 1231, the mobile drive source 1232 moves relative to the drive gear plate 1231, thereby driving the translation base 12 to move along its length direction.

[0033] Furthermore, multiple workpiece pushing sources 124 are provided at the positions of the flipping table 13 corresponding to the two sides adjacent to the workpiece 3. The fixed end of the workpiece pushing source 124 is fixedly connected to the table surface of the flipping table 13, the output end of the workpiece pushing source 124 faces the workpiece 3, and the workpiece pushing source 124 is arranged opposite to the limiting block 131.

[0034] Furthermore, when the workpiece 3 is horizontally suspended on the tilting table 13 by the lifting device, multiple workpiece pushing sources 124 work simultaneously to push the workpiece 3 toward the direction of the limiting block 131 until the side of the workpiece 3 abuts against one side of the limiting block 131, at which point the workpiece 3 is limited.

[0035] Furthermore, a plurality of flipping table fixtures 125 are arranged around the workpiece 3, and the fixed end of the flipping table fixture 125 is fixedly connected to the table surface of the flipping table 13.

[0036] Specifically, after the workpiece 3 is limited, in order to prevent the workpiece 3 from tipping over during the flipping process, the workpiece 3 needs to be clamped. The output end of the flipping table clamp 125 rotates until the output end of the flipping table clamp 125 is located on one side of the workpiece 3, so that the workpiece 3 is located between the output end of the flipping table clamp 125 and the upper surface of the flipping table 13. At this time, the clamping action of the workpiece 3 is completed.

[0037] Furthermore, the fixing mechanism 2 includes a fixing bracket 21, a fixing worktable 22, a first limiting component 23 fixed to one side of the fixing bracket 21, a fixing clamp 24, and a second limiting component 25.

[0038] Furthermore, the fixed bracket 21 is fixed on the fixed worktable 22. Two second limiting components 25 are provided at the position of the fixed worktable 22 corresponding to the bottom edge of the workpiece 3. Multiple first limiting components 23 and fixed clamps 24 are provided at the positions of the fixed worktable 22 corresponding to the two sides of the workpiece 3.

[0039] Furthermore, the first limiting component 23 and the second limiting component 25 limit the workpiece 3, and the fixing clamp 24 clamps the workpiece 3 to prevent it from tipping over during the movement and transportation process.

[0040] Furthermore, the first limiting component 23 includes a first limiting body 231, a first limiting slider 232, and a first limiting guide rod 233. The first limiting slider 232 is slidably connected to a groove within the first limiting body 231. The first limiting slider 232 is slidably connected to the first limiting guide rod 233 via a thread. When the first limiting guide rod 233 is rotated, the first limiting slider 232 moves relative to the first limiting body 231.

[0041] Specifically, when the first limiting guide rod 233 is rotated, the first limiting slider 232 moves relative to the first limiting body 231 under the action of the thread until the first limiting slider 232 abuts against the side of the workpiece 3, thus completing the limiting work of the workpiece 3.

[0042] Furthermore, the first limiting component 23 and the second limiting component 25 have similar structures, both of which limit the horizontal movement of the workpiece 3 through threaded connection.

[0043] Furthermore, the structure of the fixed clamp 25 is similar to that of the first limiting component 23. The difference is that the upper end of the slider is fixed with a clamp. When the slider on the fixed clamp 25 moves toward the workpiece 3, the workpiece 3 is inserted into the fixed clamp 25, thereby clamping the workpiece 3 and preventing the workpiece 3 from tipping over during transportation.

[0044] In this embodiment, an exchange platform 4 and a transport vehicle 5 are also included. The exchange platform 4 transports the fixed workbench 22 and the workpiece 3 to the transport vehicle 5, and the transport vehicle 5 transports the workpiece 3 to a designated processing position. The transport vehicle 5 then transports the empty fixed workbench 22 and fixed support 21 to the exchange platform 4.

[0045] Working Principle: The heavy-duty workpiece flipping and positioning device provided by this utility model includes a flipping mechanism 1 and a fixing mechanism 2. The flipping mechanism 1 includes a flipping table base 11 fixed to the ground, a translation base 12, and a flipping table 13 for carrying the workpiece. The translation base 12 is slidably connected to the flipping table base 11 through a slider 121, a linear guide rail 122, and a moving component 123. One end of the flipping table 13 is rotatably connected to one end of the translation base 12. Two relatively parallel multi-stage pushing components 14 are arranged between the flipping table 13 and the translation base 12. The output end of the multi-stage pushing component 14 is hinged to the bottom end face of the flipping table 13, and the fixed end of the multi-stage pushing component 14 is hinged to the top end face of the translation base 12. Multiple limiting blocks 131 are respectively arranged at the positions of the flipping table 13 on the two adjacent sides of the workpiece 3. Multiple support blocks 132 for supporting the workpiece are arranged on the top end face of the flipping table 13.

[0046] Specifically, the work steps are as follows:

[0047] S1. In the initial state, the tilting platform 13 is in a horizontal state and far away from the fixing mechanism 2, such as... Figure 6 The state shown;

[0048] S2. The operator uses a hoist or overhead crane to lift the workpiece 3 to the horizontal tilting table 13 and places the workpiece 3 on the tilting table 13.

[0049] S3. After the workpiece 3 is lowered into place, the operator presses the start button, and multiple sets of workpiece push sources 124 work. The output shaft of the workpiece push source 124 extends and pushes the workpiece 3 toward the direction of the limiting block 131 until the limiting block 131 abuts against the side of the workpiece 3, and the workpiece 3 is limited.

[0050] S4. The operator starts the tilting table clamp 125, the output end of the tilting table clamp 125 rotates, clamping the workpiece 3, and the clamping of the workpiece 3 is completed.

[0051] S5. The operator activates the multi-stage pushing component 14, which flips the workpiece 3 from a horizontal state to a 90° vertical state.

[0052] S6. After the workpiece 3 is flipped into place, the moving drive source 1232 is driven. Under the drive of the moving drive source 1232, the workpiece 3 moves towards the fixing mechanism 2 and moves the workpiece 3 to the position of the fixing mechanism 2.

[0053] S7. After the workpiece 3 is moved to the position of the fixing mechanism 2, the operator enters the lifting platforms 6 on both sides and controls the lifting platforms 6 to raise and lower at different heights. First, the operator adjusts the second limiting component 24 to tighten and fix the workpiece 3 from the bottom, then adjusts the first limiting component 23 to fix and limit the workpiece 3 from the side, and finally adjusts the fixing clamp 25 to clamp and fix the workpiece 3. After the workpiece 3 is tightened, the operator descends and leaves the lifting platform 6.

[0054] S8. After the operator controls the tilting table clamp 125 on the tilting table 13 to release the clamp on the workpiece 3, the workpiece push source 124 moves to release the lateral clamping on the workpiece 3.

[0055] S9. The operator controls the mobile drive source 1232 to move the tilting table 13 horizontally to its original working position. After the tilting table 13 is in place, the operator controls the multi-stage push assembly 14 to rotate the tilting table 13 to a horizontal position.

[0056] S10. Simultaneously, the fixed workbench 22 and the workpiece 3 are transported to the transport vehicle 5 using the exchange platform 4. The transport vehicle 5 then transports the workpiece 3 to the designated processing position. The transport vehicle 5 then transports the empty fixed workbench 22 and fixed support 21 to the exchange platform 4.

[0057] Repeat the above actions to complete the flipping and positioning of heavy-duty workpieces, thereby improving work efficiency, reducing the frequency of manual contact with heavy-duty workpieces, and significantly reducing safety hazards in industrial processing sites.

[0058] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A heavy workpiece flipping and positioning device, characterized in that, include: A flipping mechanism and a fixing mechanism; the flipping mechanism includes a flipping table base fixed to the ground, a translation base, and a flipping table for carrying the workpiece; The translation base is slidably connected to the flipping table base via a slider, a linear guide rail, and a moving component; one end of the flipping table is rotatably connected to one end of the translation base, wherein two relatively parallel multi-stage pushing components are arranged between the flipping table and the translation base; the output end of the multi-stage pushing component is hinged to the bottom end face of the flipping table; the fixed end of the multi-stage pushing component is hinged to the top end face of the translation base; multiple limiting blocks are respectively arranged at the flipping table positions corresponding to the two adjacent sides of the workpiece; multiple support blocks for supporting the workpiece are arranged on the top end face of the flipping table.

2. The heavy workpiece flipping and positioning device according to claim 1, characterized in that, The moving component includes a drive gear plate and a moving drive source; the fixed end of the moving drive source is fixedly connected to the translation base; the output end of the moving drive source is driven by a drive gear; the drive gear plate is fixedly connected to the upper end face of the tilting table base; the drive gear is driven by meshing teeth of the drive gear plate.

3. The heavy workpiece flipping and positioning device according to claim 2, characterized in that, Multiple workpiece pushing sources are provided at the positions of the flipping table corresponding to the two adjacent sides of the workpiece; the fixed end of the workpiece pushing source is fixedly connected to the table surface of the flipping table; the output end of the workpiece pushing source faces the workpiece; the workpiece pushing source is arranged opposite to the limiting block.

4. The heavy workpiece flipping and positioning device according to claim 3, characterized in that, Multiple flipping table fixtures are arranged around the periphery of the workpiece; the fixed end of the flipping table fixture is fixedly connected to the table surface of the flipping table.

5. The heavy workpiece flipping and positioning device according to claim 4, characterized in that, The fixing mechanism includes a fixing bracket, a fixing worktable, a first limiting component fixed to one side of the fixing bracket, and a fixing clamp and a second limiting component; the fixing bracket is fixed to the fixing worktable; two second limiting components are provided at the position of the fixing worktable corresponding to the bottom edge of the workpiece; multiple first limiting components and fixing clamps are provided at the positions of the fixing worktable corresponding to the two sides of the workpiece.

6. The heavy workpiece flipping and positioning device according to claim 5, characterized in that, The first limiting component includes a first limiting body, a first limiting slider, and a first limiting guide rod; the first limiting slider is slidably connected to a groove inside the first limiting body; the first limiting slider is slidably connected to the first limiting guide rod via a thread; when the first limiting guide rod is rotated, the first limiting slider moves relative to the first limiting body.

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