A lifting and turning device and a lifting and turning method

Abstract

The present invention provides a lifting and flipping device and a lifting and flipping method, the device comprising: a frame, a flipping mechanism and a lifting mechanism, the frame is provided with a accommodating space for placing a workpiece, the frame is provided with a first fulcrum and a second fulcrum; the flipping mechanism comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the first fulcrum of the frame, the second end of the first connecting rod is provided with a first driving wheel, the first end of the second connecting rod is rotatably connected to the second fulcrum, the second end of the second connecting rod is provided with a first driven wheel, the first driving wheel and the first driven wheel are connected by a first traction rope; the lifting mechanism, the lifting mechanism is connected to the second end of the first connecting rod. According to the lifting and flipping device of the embodiment of the present invention, there is no need for direct participation of personnel in the process of flipping the workpiece, which reduces the risk of damage to personnel and equipment and effectively saves working time.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, and in particular to a hoisting and turning device and a hoisting and turning method. Background Art

[0002] At present, automobile parts often need to go through multiple processes before they can be manufactured during the production process. When the workpiece is transferred between processes, it needs to be lifted and transported by lifting equipment. At present, lifting equipment only has vertical lifting and horizontal transportation functions. For the situation where the parts need to be flipped from horizontal to vertical in the upper and lower processes, the parts are often lifted first, then manually flipped after being suspended in the air, and the rope hanging state is changed, and then the parts are flipped from horizontal to vertical. However, when the parts are flipped in the air, the workers manually change the rope hanging state, which poses the risk of parts falling off and injuring workers and tooling; in addition, the conversion of the rope hanging state in the air needs to be done manually, which takes a long time and has low work efficiency. Summary of the invention

[0003] In view of this, the present invention provides a lifting and flipping device and a lifting and flipping method, which can solve the problems in the prior art of high risk of damage to personnel and equipment and long flipping time caused by flipping a workpiece.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An embodiment of the present invention provides a lifting and turning device, comprising a frame, a turning mechanism and a lifting mechanism, wherein:

[0006] An accommodating space for placing a workpiece is formed inside the frame, and a first fulcrum and a second fulcrum are provided on the frame;

[0007] The flip mechanism comprises a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod is rotatably connected to the first fulcrum of the frame, the second end of the first connecting rod is provided with a first driving wheel, the first end of the second connecting rod is rotatably connected to the second fulcrum, the second end of the second connecting rod is provided with a first driven wheel, the first driving wheel and the first driven wheel are connected by a first traction rope, and the contraction of the first traction rope causes the frame to rotate from a horizontal state to a vertical state;

[0008] A lifting mechanism is connected to the second end of the first connecting rod, and the lifting mechanism drives the frame to rise or fall through the flipping mechanism.

[0009] Optionally, the lifting mechanism includes a third connecting rod and a fourth connecting rod, the first end of the third connecting rod is connected to the second end of the first connecting rod, the second end of the third connecting rod is provided with a second driven wheel, the first end of the fourth connecting rod is connected to the lifting point, the second end of the fourth connecting rod is provided with a second driving wheel, the second driving wheel and the second driven wheel are connected by a second traction rope, and the extension / contraction of the second traction rope drives the frame to rise / fall.

[0010] Optionally, the frame is a U-shaped frame, and in the horizontal state, the frame is in a sideways U-shape.

[0011] Optionally, the first connecting rod and the third connecting rod are in an integral structure.

[0012] Optionally, also include:

[0013] The blocking plate is openably and closably arranged at the opening of the frame.

[0014] Another aspect of the present invention is to provide a lifting and flipping method, which is applied to the lifting and flipping device as described above, and the method comprises:

[0015] The frame loaded with the workpiece is lifted to a preset height using a lifting mechanism;

[0016] The first traction rope is controlled to contract so that the frame rotates from a horizontal state to a vertical state.

[0017] The beneficial effects of the above technical solution of the present invention are as follows:

[0018] According to the lifting and flipping device of the embodiment of the present invention, no direct human involvement is required during the flipping of the workpiece, which reduces the risk of injury to personnel and equipment, effectively saves operation time, and can be applied to the lifting of different parts, thus having universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a lifting and flipping device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0021] Please refer to Figure 1, is a schematic diagram of the structure of a lifting and flipping device provided by an embodiment of the present invention. Figure 1 As shown, the lifting and flipping device in the embodiment of the present invention may include a frame 1, a flipping mechanism and a lifting mechanism, wherein a accommodating space for placing a workpiece 2 is formed inside the frame 1, and a first fulcrum 101 and a second fulcrum 102 are arranged on the frame 1; and the flipping mechanism may include a first connecting rod 3 and a second connecting rod 4, wherein the first end of the first connecting rod 3 is rotatably connected to the first fulcrum 101 on the frame 1, and the second end of the first connecting rod 3 is provided with a first driving wheel 5, and the rotating axis of the first driving wheel 5 is vertically arranged with the first connecting rod 3, and the first end of the second connecting rod 4 is rotatably connected to the second fulcrum 102 on the frame 1, and the second end of the second connecting rod 4 is provided with a first driven wheel 6, and the rotating axis of the first driven wheel 6 is vertically arranged with the second connecting rod 4, and the first The driving wheel 5 and the first driven wheel 6 are connected by the first traction rope 7 to form a pulley group, whereby when the first traction rope 7 contracts, the distance between the first driving wheel 5 and the first driven wheel 6 is reduced, and under the traction of the first driving wheel 5, the second fulcrum 102 of the frame 1 is lifted by the first driven wheel 6, thereby realizing the rotation of the frame 1 from a horizontal state to a vertical state, that is, completing the process of flipping the workpiece 2 loaded in the frame 1 from a horizontal state to a vertical state; the lifting mechanism is connected to the second end of the first connecting rod 3, and the lifting mechanism is used to provide power for the frame 1 to rise or fall, that is, the lifting mechanism is connected to the frame 1 through the first connecting rod 3 in the flipping mechanism, so that when the lifting mechanism rises or falls, the frame 1 and the workpiece 2 loaded therein will also rise or fall accordingly, thereby completing the lifting of the workpiece 2.

[0022] In the embodiment of the present invention, optionally, the lifting mechanism includes a third connecting rod 8 and a fourth connecting rod 10, wherein the first end of the third connecting rod 8 is connected to the second end of the first connecting rod 3, and the second end of the third connecting rod 8 is provided with a second driven wheel 9, the first end of the fourth connecting rod 10 is connected to the lifting point, and the second end of the fourth connecting rod 10 is provided with a second driving wheel 11, and the second driving wheel 11 and the second driven wheel 9 are connected by a second traction rope 12 to form a pulley block, whereby when the second traction rope 12 is extended, the distance between the second driving wheel 11 and the second driven wheel 9 increases, and the height of the frame 1 decreases, and when the second traction rope 12 is contracted, the distance between the second driving wheel 11 and the second driven wheel 9 decreases, and the height of the frame 1 increases, thereby realizing the adjustment of the vertical height of the frame 1. The above-mentioned lifting point can be a point in a factory or workshop for providing a suspension position.

[0023] In an embodiment of the present invention, the frame 1 may be a U-shaped frame, that is, it may be a hollow cuboid with an opening. In a horizontal state, the frame 1 is in an inverted U-shape, that is, the opening of the U-shape faces the horizontal direction, so that it is convenient to place the workpiece 2 into the frame 1 through the opening.

[0024] In the embodiment of the present invention, in order to prevent the workpiece 2 from falling during the lifting or turning process and causing casualties or property losses, the lifting and turning device may further include a blocking plate (not shown in the figure), which is arranged at the opening of the frame 1 and is openable and closable. When the blocking plate is opened, the workpiece 2 is placed into the interior of the frame 1 through the opening of the frame 1. After the workpiece 2 is placed in the frame 1, the blocking plate is closed to block the opening of the frame 1, thereby preventing the workpiece 2 from slipping out of the opening.

[0025] In the embodiment of the present invention, the first connecting rod 3 and the third connecting rod 8 can be an integral structure, that is, the two can be designed as a rod body, one end of the rod body is rotatably connected to the first fulcrum 101 on the frame 1, and the other end of the rod body is provided with a second driven wheel 9, and the first driving wheel 5 is fixed in the middle part of the rod body.

[0026] It should be noted that, in the embodiment of the present invention, in order to balance the lifting process, when the frame 1 is in a horizontal state, the first fulcrum 101, the second fulcrum 102 and the center of the first driving wheel 5 form a triangle. More specifically, the three form a right triangle. Moreover, the second fulcrum 102 should be set on the side of the frame 1 that needs to be turned over and raised, while the first fulcrum 101 can be set as follows: Figure 1 The center position of the upper plate of the frame 1 shown can be appropriately offset to the left by a small distance, so that the frame 1 will be slightly tilted to the right, but because the first driven wheel 6 is pulled at the second fulcrum 102, the balance of the frame 1 can be ensured; of course, in the embodiment of the present invention, it is only necessary to ensure that when lifting through the first fulcrum 101 and the second fulcrum 102, the frame 1 can be kept horizontal during the rising process, and the frame 1 can be turned over by pulling the second fulcrum 102 during the turning process. In addition, it can be known that the number of the above-mentioned first fulcrum 101 and the second fulcrum 102 can be two or more, that is, there are at least two first fulcrums 101 in the direction of the rotation axis of the first driving wheel 5 (that is, in the direction perpendicular to the paper surface), and correspondingly, the first connecting rod 3, the third connecting rod 8, etc. also have a corresponding number and are connected in the same way.

[0027] According to the lifting and flipping device of the embodiment of the present invention, no direct human involvement is required during the flipping of the workpiece, which reduces the risk of injury to personnel and equipment, effectively saves operation time, and can be applied to the lifting of different parts, thus having universality.

[0028] Another aspect of the present invention is to provide a lifting and flipping method, which is applied to the lifting and flipping device described in the above embodiment, and the method comprises:

[0029] The frame loaded with the workpiece is lifted to a preset height using a lifting mechanism;

[0030] The first traction rope is controlled to contract so that the frame rotates from a horizontal state to a vertical state.

[0031] That is to say, first, the workpiece 2 is loaded into the frame 1, the blocking plate is closed, and then the second traction rope 12 is contracted to reduce the distance between the second driving wheel 11 and the second driven wheel 9, and the second driven wheel 9 is pulled up, thereby driving the frame 1 and the workpiece 2 therein to rise; after rising to a preset height, the first traction rope is contracted to reduce the distance between the first driving wheel 5 and the first driven wheel 6, and the first driven wheel 6 is pulled up, thereby driving the side where the second fulcrum 102 of the frame 1 is located to flip in the vertical direction, thereby realizing the flipping of the workpiece 2 from a horizontal state to a vertical state.

[0032] According to the lifting and flipping method of the embodiment of the present invention, no direct human involvement is required during the flipping process of the workpiece, which reduces the risk of injury to personnel and equipment, effectively saves operation time, and can be applied to the lifting of different parts, thus having universality.

[0033] The above are some embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lifting and turning device, characterized in that: It includes a frame, a turning mechanism and a lifting mechanism, wherein: An accommodating space for placing a workpiece is formed inside the frame, and a first fulcrum and a second fulcrum are provided on the frame; The flip mechanism comprises a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod is rotatably connected to the first fulcrum of the frame, the second end of the first connecting rod is provided with a first driving wheel, the first end of the second connecting rod is rotatably connected to the second fulcrum, the second end of the second connecting rod is provided with a first driven wheel, the first driving wheel and the first driven wheel are connected by a first traction rope, and the contraction of the first traction rope causes the frame to rotate from a horizontal state to a vertical state; A lifting mechanism is connected to the second end of the first connecting rod, and the lifting mechanism drives the frame to rise or fall through the flipping mechanism.

2. The lifting and turning device according to claim 1, characterized in that: The lifting mechanism includes a third connecting rod and a fourth connecting rod, the first end of the third connecting rod is connected to the second end of the first connecting rod, the second end of the third connecting rod is provided with a second driven wheel, the first end of the fourth connecting rod is connected to the lifting point, the second end of the fourth connecting rod is provided with a second driving wheel, the second driving wheel and the second driven wheel are connected by a second traction rope, and the extension / contraction of the second traction rope drives the frame to rise / fall.

3. The lifting and turning device according to claim 1, characterized in that: The frame is a U-shaped frame, and in the horizontal state, the frame is in a sideways U-shape.

4. The lifting and turning device according to claim 2, characterized in that: The first connecting rod and the third connecting rod are in an integrated structure.

5. The lifting and turning device according to claim 3, characterized in that: Also includes: The blocking plate is openably disposed at the opening of the frame.

6. A lifting and flipping method, characterized in that: Applied to the lifting and flipping device according to any one of claims 1 to 5, the method comprises: The frame loaded with the workpiece is lifted to a preset height using a lifting mechanism; The first traction rope is controlled to contract so that the frame rotates from a horizontal state to a vertical state.

Images