A multi-specification ring-shaped workpiece lifting device

Abstract

The utility model discloses a kind of multi-specification annular workpiece lifting devices, it includes: workbench, the upper end surface of workbench is provided with the load-bearing plate for placing workpiece, the upper end surface of load-bearing plate is circumferentially provided with several horizontal poles, the lower end surface of several horizontal poles is all provided with top rod, top rod is passed through load-bearing plate, workbench and extends to the inner cavity of workbench, and the inner cavity of workbench is slidably provided with lifting plate, the upper end surface of lifting plate and the position of top rod corresponding position are all provided with convex shaft, convex shaft can be moved by the sliding of lifting plate top rod lifting horizontal pole and moved to the above of load-bearing plate. The multi-specification annular workpiece lifting device disclosed in the application adopts horizontal pole to lift workpiece to the above of load-bearing plate, so that mechanical hand is clamped and carries workpiece from the gap between horizontal pole, prevent from the increase of workpiece around plane on load-bearing plate due to workpiece specification change causes mechanical hand collision, satisfy the carrying of different specification workpiece.

Description

Technical Field

[0001] This utility model relates to the technical field of workpiece loading auxiliary equipment, specifically to a multi-specification annular workpiece lifting device. Background Technology

[0002] Ring-shaped workpieces are industrial components with a circular shape, commonly found in machinery, automotive, aerospace, and other fields. Examples include bearing rings, gear rings, or sealing rings. They are typically used for support, transmission, or sealing functions. Due to their ring structure, they are susceptible to stress, temperature, and other factors during processing, heat treatment, or use, which may lead to flatness deviations, warping, or deformation. Leveling processes are required to correct these issues, eliminate residual stress, restore geometric accuracy, ensure stable contact during assembly and use, reduce wear, and meet the performance requirements of high-precision equipment, thereby extending service life and improving system reliability.

[0003] However, in order to prevent the robot arm from colliding with the worktable, after leveling the ring-shaped workpiece, a lifting mechanism is usually used to lift the workpiece, and then the robot arm is used to clamp the workpiece and move it to the next process for processing. However, most of the existing lifting mechanisms use pallets to lift the workpiece, and the pallet model is fixed and cannot be adapted to the workpiece specifications, so the problem of collision between the robot arm and the pallet still exists.

[0004] Therefore, there is an urgent need for a multi-specification ring workpiece lifting device that can meet the lifting needs of workpieces of different specifications and prevent collisions with the robot arm, so as to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a multi-specification annular workpiece lifting device. It uses hydraulically driven crossbars to lift and displace the workpiece, raising it above the support plate. The robot arm then clamps the workpiece through the gaps between the crossbars, preventing collisions caused by the increased surface area around the workpiece on the support plate due to changes in workpiece specifications. This device can handle workpieces of different specifications and solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-specification annular workpiece lifting device includes: a worktable, a support plate for placing workpieces is provided on the upper end surface of the worktable, a plurality of crossbars are arranged circumferentially on the upper end surface of the support plate, and a top rod is provided on the lower end surface of each of the crossbars. The top rods pass through the support plate and the worktable and extend into the inner cavity of the worktable. A lifting plate is slidably arranged in the inner cavity of the worktable. A convex shaft is provided at the position corresponding to the top rod on the upper end surface of the lifting plate. The convex shaft can push the top rod to lift the crossbars and move them above the support plate by sliding the lifting plate.

[0008] Preferably, the upper end face of the support plate is provided with a number of square grooves in a circular shape, and the crossbar is engaged and installed inside the square grooves, with the upper end face of the crossbar being flush with the upper end face of the support plate.

[0009] Preferably, a first through hole and a second through hole are respectively provided at the top of the workbench and the bearing plate and at the position corresponding to the push rod. The push rod passes through the first through hole and the second through hole, is inserted into the inner cavity of the workbench, and slides in the inner cavity.

[0010] Preferably, the inner cavity of the workbench is provided with a hydraulic cylinder for driving the displacement of the lifting plate. The hydraulic cylinder drives the lifting plate to move and pushes the top rod to move the support crossbar above the bearing plate.

[0011] Preferably, a second fixing bolt is embedded at the position corresponding to the top rod on the upper end face of the crossbar, and the second fixing bolt passes through the crossbar and is threaded into the inside of the top rod.

[0012] Preferably, the inner cavity of the workbench is provided with a guide rod, and a sliding hole is provided at the middle position of the lifting plate. The lifting plate is fitted onto the outer wall of the guide rod through the sliding hole and slides on its outer wall.

[0013] Preferably, a plurality of first fixing bolts are evenly embedded on the upper end surface of the support plate, and the first fixing bolts pass through the support plate and are threaded into the inside of the worktable.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] By setting up crossbars and lifting plates, hydraulic cylinders drive the lifting plates to move upwards, allowing the lifting plates to push the push rods upwards via the cam shafts. The moving push rods then push the crossbars to lift the workpieces on the support plate, raising them above the support plate. The robot then clamps the workpieces through the gaps between the crossbars, preventing collisions caused by the increased surface area around the workpieces on the support plate due to changes in workpiece specifications. This satisfies the need for handling workpieces of different specifications. Attached Figure Description

[0016] Figure 1 This is a perspective view of a lifting device according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of a lifting device according to an embodiment of the present invention;

[0018] Figure 3 This is a perspective view of a support plate according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection between the crossbar and the top bar according to an embodiment of the present invention.

[0020] In the figure: 1. Workbench; 101. First through hole; 11. Lifting plate; 111. Sliding hole; 12. Hydraulic cylinder; 13. Convex shaft; 14. Guide rod; 2. Bearing plate; 201. Square groove; 202. Second through hole; 21. First fixing bolt; 3. Crossbar; 31. Top rod; 32. Second fixing bolt. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0022] Combination Figures 1-4 As shown in this embodiment, the upper end face of the workbench 1 is provided with a support plate 2 for placing workpieces. The upper end face of the support plate 2 is provided with a number of crossbars 3 in a circular shape. There is a gap between two adjacent crossbars 3. The robot arm clamps the workpiece from the gap, which can prevent the robot arm from colliding due to the increase of the plane around the workpiece on the support plate 2 caused by the change of workpiece specifications, and meet the needs of handling workpieces of different specifications.

[0023] In this embodiment, a top rod 31 is provided on the lower end face of several crossbars 3. A first through hole 101 and a second through hole 202 are respectively opened at the top of the worktable 1 and the bearing plate 2 at the position corresponding to the top rod 31. The top rod 31 passes through the first through hole 101 and the second through hole 202 and is inserted into the inner cavity of the worktable 1 and slides in the inner cavity. The top rod 31 is lifted and displaced upward in the first through hole 101 and the second through hole 202 by the lifting plate 11, so that the crossbar 3 lifts the workpiece placed on the bearing plate 2 above it, so that the bearing plate 2 does not contact the workpiece, and prevents the bearing plate 2 from interfering with the robot, thus ensuring the workpiece handling work. Moreover, after the robot clamps the workpiece on the crossbar 3, the crossbar 3 presses the top rod 31 under its own weight, so that the top rod 31 moves downward in the first through hole 101 and the second through hole 202, thereby realizing the reset of the crossbar 3 and the top rod 31.

[0024] In this embodiment, a lifting plate 11 is slidably arranged in the inner cavity of the worktable 1. A convex shaft 13 is provided at the position corresponding to the top rod 31 on the upper end surface of the lifting plate 11. The convex shaft 13 can push the top rod 31 to lift the crossbar 3 above the bearing plate 2 through the sliding of the lifting plate 11. The lifting plate 11 pushes the top rod 31 to move upward through the convex shaft 13 to lift the workpiece, which can prevent the lifting plate 11 from being damaged by collision with the top rod 31 for a long time and extend the service life of the lifting plate 11.

[0025] In this embodiment, the upper end face of the support plate 2 is provided with a number of square grooves 201 in a circular shape. The crossbar 3 is engaged and installed inside the square grooves 201, and the upper end face of the crossbar 3 is flush with the upper end face of the support plate 2. The crossbar 3 is stored in the square grooves 201, so that the crossbar 3 and the support plate 2 are on the same plane, preventing the workpiece on the support plate 2 from tilting due to the crossbar 3 protruding.

[0026] In this embodiment, the inner cavity of the workbench 1 is provided with a hydraulic cylinder 12 for driving the displacement of the lifting plate 11. The hydraulic cylinder 12 drives the lifting plate 11 to move and pushes the push rod 31 to lift the crossbar 3 to move above the bearing plate 2. The hydraulic cylinder 12 drives the piston rod at its output end to retract, so that the piston rod pulls the lifting plate 11 to move upward and pushes the push rod 31 to lift the crossbar 3 to rise, providing power for the rise of the crossbar 3.

[0027] In this embodiment, a second fixing bolt 32 is embedded at the position corresponding to the top rod 31 on the upper end face of the crossbar 3. The second fixing bolt 32 passes through the crossbar 3 and is threaded inside the top rod 31. The top rod 31 is fixed to the bottom of the crossbar 3 by the second fixing bolt 32, and the crossbar 3 and the top rod 31 are assembled into a whole. This can prevent the crossbar 3 from falling off the top rod 31, ensuring the use of the crossbar 3. Moreover, by removing the second fixing bolt 32 and replacing the crossbar 3 with one of different lengths, it can also be used to support workpieces of larger specifications.

[0028] In this embodiment, the inner cavity of the workbench 1 is provided with a guide rod 14, and a sliding hole 111 is provided at the middle position of the lifting plate 11. The lifting plate 11 is fitted onto the outer wall of the guide rod 14 through the sliding hole 111 and slides on its outer wall. The lifting plate 11 slides on the outer wall of the guide rod 14 through the sliding hole 111. The sliding direction of the lifting plate 11 is limited by the guide rod 14, which can prevent the lifting plate 11 from deviating during the movement.

[0029] In this embodiment, a plurality of first fixing bolts 21 are evenly embedded on the upper end surface of the support plate 2. The first fixing bolts 21 pass through the support plate 2 and are threadedly installed inside the workbench 1. The support plate 2 is installed on the top of the workbench 1 by the first fixing bolts 21. The workpiece is placed on the support plate 2, which makes it convenient for the crossbar 3 to lift the workpiece.

[0030] The multi-specification annular workpiece lifting device proposed in this application can place the workpiece on the support plate 2. The hydraulic cylinder 12 drives the piston rod at its output end to retract, causing the piston rod to pull the lifting plate 11 upward. The lifting plate 11, in its displacement, pushes the top rod 31 upward through the cam shaft 13, pushing the crossbar 3 to lift the workpiece, raising it above the support plate 2 without allowing the support plate 2 to contact the workpiece. The robot arm clamps the workpiece from the gap between the crossbars 3, preventing collisions caused by the increased surface area around the workpiece on the support plate 2 due to changes in workpiece specifications. This satisfies the handling of workpieces of different specifications. Moreover, after the workpiece handling is completed, the hydraulic cylinder 12 drives the piston rod at its output end to extend, causing the piston rod to push the lifting plate 11 downward to disengage from the top rod 31. The crossbar 3, under its own weight, presses the top rod 31 back to its original position, achieving automatic reset of the crossbar 3.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-specification annular workpiece lifting device, comprising: A workbench (1) is characterized in that a support plate (2) for placing workpieces is provided on the upper end surface of the workbench (1), and a plurality of crossbars (3) are arranged in a circular pattern on the upper end surface of the support plate (2). A top rod (31) is provided on the lower end surface of each of the crossbars (3). The top rod (31) passes through the support plate (2) and the workbench (1) and extends into the inner cavity of the workbench (1). A lifting plate (11) is slidably provided in the inner cavity of the workbench (1). A convex shaft (13) is provided at the position corresponding to the top rod (31) on the upper end surface of the lifting plate (11). The convex shaft (13) can push the top rod (31) to lift the crossbar (3) and move it above the support plate (2) by sliding the lifting plate (11).

2. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The upper surface of the support plate (2) is provided with a number of square grooves (201) in a circular shape. The crossbar (3) is engaged and installed inside the square grooves (201), and the upper surface of the crossbar (3) is flush with the upper surface of the support plate (2).

3. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The top of the workbench (1) and the support plate (2) are respectively provided with a first through hole (101) and a second through hole (202) at the position corresponding to the top rod (31). The top rod (31) passes through the first through hole (101) and the second through hole (202) and is inserted into the inner cavity of the workbench (1) and slides in the inner cavity.

4. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The inner cavity of the workbench (1) is provided with a hydraulic cylinder (12) for driving the displacement of the lifting plate (11). The hydraulic cylinder (12) drives the lifting plate (11) to move and pushes the top rod (31) to lift the crossbar (3) and move it above the bearing plate (2).

5. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The upper end face of the crossbar (3) is provided with a second fixing bolt (32) at the position corresponding to the top rod (31). The second fixing bolt (32) passes through the crossbar (3) and is threaded inside the top rod (31).

6. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The inner cavity of the workbench (1) is provided with a guide rod (14), and a sliding hole (111) is provided at the middle position of the lifting plate (11). The lifting plate (11) is fitted onto the outer wall of the guide rod (14) through the sliding hole (111) and slides on its outer wall.

7. The multi-specification annular workpiece lifting device according to claim 1, characterized in that, The upper end face of the bearing plate (2) is uniformly embedded with a number of first fixing bolts (21), which pass through the bearing plate (2) and are threaded into the inside of the workbench (1).

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