Turnover hoisting tool

Abstract

The utility model discloses a turnover lifting tool. The turnover lifting tool comprises a rotary connecting rod, a pin shaft structure and an occlusion structure, the rotating connecting rods are arranged in pairs, and the first rotating connecting rod and the second rotating connecting rod are crossed in the middle and are fixedly connected through a pin shaft structure to enable the two rotating connecting rods to be rotationally connected; the two sets of meshing structures are symmetrically arranged at the bottoms of the two rotating connecting rods and can rotate with the bottoms of the rotating connecting rods as the axis. The hoisting tool disclosed by the utility model can be used for hoisting, transferring, turning over and the like of flange parts, is simple and practical to manufacture, and improves the field working efficiency of workers.

Description

Technical Field

[0001] The utility model relates to a turnover lifting tooling, belonging to the technical field of manufacturing auxiliary tooling. Background Art

[0002] In the process of machining parts, flange parts are very common. For those with lighter weight, they can be carried manually, but for those with heavier weight, auxiliary lifting tools are needed. Generally speaking, flange parts are mainly used as connecting components, and there are rarely positions for lifting on them, such as no lifting lugs, no lifting holes, etc. Therefore, after such parts are processed, they need to be transferred with special lifting tooling. In addition, we often need to turn over the workpiece. Therefore, the lifting tooling is preferably able to realize the turnover operation of the parts. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a turnover lifting tooling with reasonable structure and convenient use.

[0004] The utility model adopts the following technical solutions to solve the above technical problems: a turnover lifting tooling, including a rotating connecting rod, a pin shaft structure and a biting structure; the rotating connecting rods are arranged in pairs, the first rotating connecting rod and the second rotating rod cross in the middle and are fixedly connected through the pin shaft structure to make the two rotating connecting rods rotatably connected; the biting structure is in two groups, symmetrically arranged at the bottom of the two rotating connecting rods, and can rotate around the bottom of the rotating connecting rod as the axis.

[0005] Further, the first rotating connecting rod and the second rotating connecting rod have the same structure, including a connecting rod body and a biting structure connecting part fixed at the bottom thereof. At least one pin hole is provided on the connecting rod body, and the two are cross-rotatably connected through the pin shaft structure passing through the pin holes on the two rotating connecting rods in sequence;

[0006] Further, the connecting rod body is composed of a long straight rod part and a bending part. The top end of the rod part has a circular chamfer and is provided with a lifting hole, and a lifting ring connected to the lifting tooling is installed in the lifting hole; a plurality of pin holes are equidistantly distributed along the middle position of the rod part. The end of the rod part is fixedly connected to the top end of the bending part as a whole, and the two form an included angle; the end of the bending part is fixedly connected to the biting structure through a connecting part.

[0007] Further, the included angle is 120°.

[0008] Further, the connecting part is a rectangular block with a through hole in the center. The top end of the rectangular block is welded and fixed to the bottom of the bending part. An arc-shaped gasket is arranged on the surface connected to the biting structure. The through hole is opened along the installation direction of the biting structure, and a hole with the same diameter is also opened on the arc-shaped gasket.

[0009] Further, the occluding structure includes a connecting column for connection and fixation and an opening block for clamping parts, and the two are welded and fixed as a whole; the connecting column is composed of a column body and a stepped surface. After the column body passes through the opening holes on the connecting part in sequence, it is fixed by the stepped surface at its end, and the other end of the column body is welded and fixed in the middle of the opening block, so that the opening block can rotate freely around the column body.

[0010] Further, the cross-section of the opening block is trapezoidal, and its opening is larger than the clamping part of the part, ensuring that the part can be put in but not too loose. Generally, the opening size is 5 mm larger than the thickness of the clamping part of the part.

[0011] Compared with the prior art, the utility model adopts the above technical solutions and has the following advantages:

[0012] The lifting tooling of the utility model can perform operations such as lifting, transferring, and turning over flange-like parts. The tooling is simple and practical to manufacture, improving the on-site work efficiency of workers. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the utility model.

[0014] Figure 2 It is a schematic structural diagram of the rotating connecting rod in the utility model.

[0015] Figure 3 It is a schematic structural diagram of the occluding block in the utility model.

[0016] Figure 4 It is a schematic diagram of the use state of the utility model.

[0017] Description of the Drawings: 1 - Rotating connecting rod; 2 - Connecting pin; 3 - Occluding block. Detailed Description of the Embodiment

[0018] The technical solutions of the utility model will be further described in detail below with reference to the drawings:

[0019] This embodiment provides a flip-up lifting tooling, and its structure includes parts such as a rotating connecting rod, a connecting pin, and an occluding block.

[0020] The rotating connecting rod is provided with a lifting hole, three pin holes, and an occluding block connection hole. Two rotating connecting rods are required to be used in cooperation. After the two connecting rods are connected by pins, they can rotate freely; the occluding block is made by welding and machining, mainly including a stepped column body and an opening block. The column body part cooperates with the hole at the bottom of the rotating connecting rod, so that the whole occluding block can rotate freely, and the opening part is used to clamp the surface of the part.

[0021] During use, after the part is placed into the opening of the clamping block, when the lifting tooling is lifted under tension, the clamping block will clamp the part, and then the lifting operation can be carried out. After the workpiece is transferred to the target position, it can be placed or turned over. In addition, the pin connection positions of the two rotating connecting rods can be adjusted according to the size of the lifted part to achieve the lifting of parts of different sizes.

[0022] First, connect the flipping and lifting tooling with the sling of the lifting equipment (usually a crane), move the lifting tooling to the workpiece, manually open and adjust the opening of the clamping block 3 (the two connecting rods 1 can rotate around the pin 2. When the crane lifts this tooling, due to the gravity of the tooling itself, the connecting rod 1 will surely rotate freely, causing the two clamping blocks 3 to move closer together. Therefore, it is necessary to manually rotate the connecting rod 1 to adjust the opening and then clamp the workpiece), and place the workpiece into the clamping block 3.

[0023] Lift the crane. The sling drives the rotating connecting rod 1. As the connecting rod 1 contracts, the opening size of the clamping block 3 becomes smaller until the workpiece is completely lifted. The heavier the workpiece, the tighter it is clamped. At this time, the workpiece can be transferred.

[0024] When it is necessary to turn over the workpiece, just manually move the part or rotate the clamping block 3 in the state where the workpiece is lifted, and the workpiece can be turned over.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above specific embodiments. The above specific embodiments and the descriptions in the specification are only for further explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the claims and their equivalents.

Claims

1. A reversible lifting tooling, characterized in that: It includes rotating connecting rods, pin shaft structures and engaging structures; the rotating connecting rods are arranged in pairs, the first rotating connecting rod and the second rotating rod cross in the middle and are fixedly connected through the pin shaft structure to enable the two rotating connecting rods to be rotationally connected; the engaging structures are two groups, symmetrically arranged at the bottoms of the two rotating connecting rods, and can rotate with the bottoms of the rotating connecting rods as the axes; the first rotating connecting rod and the second rotating connecting rod have the same structure, including a connecting rod body and an engaging structure connecting part fixed to the bottom thereof, and at least one pin hole is provided on the connecting rod body, and the two are cross-rotationally connected through the pin shaft structure sequentially passing through the pin holes on the two rotating connecting rods; the connecting rod body is composed of a long straight rod part and a bending part, the top end of the rod part has a circular chamfer, and a lifting hole is provided, and a lifting ring connected to a lifting tooling is installed in the lifting hole; a plurality of pin holes are equally spaced along the middle position of the rod part, the end of the rod part is fixedly connected to the top end of the bending part integrally, and the two form an included angle; the end of the bending part is fixedly connected to the engaging structure through a connecting part; The connecting part is a rectangular block with a through hole in the center, the top end of the rectangular block is welded and fixed to the bottom of the bending part, and an arc-shaped gasket is arranged on the surface connected to the engaging structure, the through hole is opened along the installation direction of the engaging structure, and a hole with the same diameter is also opened on the arc-shaped gasket; The engaging structure includes a connecting column body for connecting and fixing and an opening block for clamping parts, and the two are welded and fixed as a whole; The connecting column body is composed of a column body and a stepped surface, after the column body sequentially passes through the opening on the connecting part, it is fixed through the stepped surface at its end, and the other end of the column body is welded and fixed to the middle of the opening block, so that the opening block can freely rotate with the column body as the axis.

2. The reversible lifting tooling according to claim 1, characterized in that: The angle of the included angle is 120°.

3. The reversible lifting tooling according to claim 1, characterized in that: The cross section of the opening block is trapezoidal, and its opening is larger than the clamping part of the part, ensuring that the part can be put in but not too loose, and the opening size is 5 mm larger than the thickness of the clamping part of the part.

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