CN214444713U

CN214444713U - Floating type heavy lifting mechanism

Info

Publication number: CN214444713U
Application number: CN202023335074.0U
Authority: CN
Inventors: 高家铭; 余协; 陈雄辉; 林杰城; 袁燕清; 许见忠; 杨海艺
Original assignee: Xiamen Aerospace Siert Robot System Co Ltd
Current assignee: Xiamen Aerospace Siert Robot System Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a floating heavy lifting mechanism, include: a base; the lifting mechanism is fixedly connected with the rack so as to drive the rack to ascend or descend; the clamping mechanism comprises a first clamping head and a second clamping head, and the first clamping head and the second clamping head reciprocate under the driving of the driving device to clamp or release the workpiece; the floating assembly comprises a floating plate for placing a workpiece, a floating device arranged on the frame and used for supporting the floating plate, and a floating piece which is respectively hinged with the frame and the floating plate and can enable the floating plate to move relatively under the action of external force. The utility model discloses a place the work piece on the subassembly that floats, when clamping mechanism drive centering was pressed from both sides tightly, the work piece can move with the floating plate together and can not produce relative slip, has so not only fixed the work piece, makes the work piece be in relative horizontal position moreover, has still avoided because the wearing and tearing that relative slip produced, freely adjusts the height through elevating system with the height that needs the work piece lift to different during operations conveniently.

Description

Floating type heavy lifting mechanism

Technical Field

The utility model relates to a to the lifting technical field of heavy work piece, particularly, relate to a floating heavy lifting mechanism.

Background

With the high-speed development of the industry in China, the demand for large machines is continuously increased, so that heavy workpieces need to be welded or machined, and the workpieces need to be welded or machined at different heights and relatively horizontally centered. The traditional method is that a supporting structure with fixed height is matched with a travelling crane, and the position of the supporting structure relative to the travelling crane is manually adjusted, so that the efficiency is low, potential safety hazards exist, the workpiece and the supporting structure are greatly abraded, and the shape of the workpiece is changed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a floating heavy lifting mechanism, the problem of sliding and producing wearing and tearing when solving heavy work piece and pressing from both sides tightly.

The utility model adopts the following scheme:

a floating heavy lift mechanism comprising:

the base comprises a guide post and a rack, and the rack is connected with the guide post in a sliding manner through a guide rod;

the lifting mechanism is fixedly connected with the rack so as to drive the rack to ascend or descend;

the clamping mechanism is arranged on the rack and comprises a first chuck and a second chuck, and the first chuck and the second chuck reciprocate along the direction of the guide rail under the driving of the driving device so as to clamp or release the workpiece;

the floating assembly is arranged on the rack and comprises a floating plate for placing a workpiece, a floating device arranged on the rack and used for supporting the floating plate, and a floating part which is hinged with the rack and the floating plate respectively and can enable the floating plate to move relatively under the action of external force.

As a further improvement, a containing cavity is arranged in the rack, the driving device is arranged in the containing cavity, two sliding ports are symmetrically arranged above the containing cavity along the center, and the first chuck and the second chuck are respectively connected with the driving device through connecting devices and move back and forth along the sliding ports.

As a further improvement, the connecting device comprises a screw and a nut matched with the screw, the driving device is connected with the screw, the nut is connected with the first chuck and the second chuck, and the driving device drives the screw to rotate so as to drive the first chuck and the second chuck to reciprocate.

As a further improvement, the floating device comprises a mounting seat fixed on the rack and a universal ball which is arranged on the mounting seat and can freely rotate, and at least two groups of the floating devices are arranged and symmetrically arranged at intervals along the moving direction of the first chuck or the second chuck.

As a further improvement, the floating piece comprises a first hinged block, a second hinged block, a guide rod and a spring, the first hinged block is hinged to the floating plate, the second hinged block is hinged to the rack, one end of the guide rod is fixedly connected with the first hinged block, one end of the guide rod is movably connected with the second hinged block, and the spring is sleeved on the guide rod and is arranged between the first hinged block and the second hinged block.

As a further improvement, an elastic plunger is arranged on the frame and elastically abuts against the floating plate.

As a further improvement, the lower side of the floating plate is provided with a concave point matched with the elastic plunger piston, and the elastic plunger piston is correspondingly matched with the concave point when the floating plate is static.

As a further improvement, an adjusting device is arranged at the joint of the guide rod and the rack and used for adjusting the height between the guide rod and the rack.

As a further improvement, the lifting mechanism is connected to the central position of the frame.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model discloses a place the work piece on the subassembly that floats, when clamping mechanism drive centering was pressed from both sides tightly, the work piece can move with the floating plate together and can not produce relative slip, has so not only fixed the work piece, makes the work piece be in relative horizontal position moreover, has still avoided because the wearing and tearing that relative slip produced, freely adjusts the height through elevating system with the height that needs the work piece lift to different during operations conveniently. The utility model discloses reduce the wearing and tearing of work piece, reduce the potential safety hazard, improve work efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the lifting mechanism of the present invention after it is lifted;

fig. 3 is a schematic exploded view of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 in a symmetrical cross-section;

icon: 1-a base; 2-a lifting mechanism; 3-a clamping mechanism; 4-a floating assembly; 5-an elastic plunger; 11-a frame; 12-a guide post; 13-a guide bar; 31-a first collet; 32-a second collet; 33-a drive device; 34-a connecting means; 41-a floating plate; 42-a floating device; 43-a float; 111-a containment chamber; 112-a sliding port; 131-an adjusting device; 341-screw; 342-a nut; 421-a mounting seat; 422-universal ball; 431-a first articulated block; 432-a second hinged block; 433-a guide bar; 434-spring.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

With reference to fig. 1 to 4, the present embodiment provides a floating heavy type lifting mechanism, which includes a base 1, a lifting mechanism 2, a clamping mechanism 3 and a floating assembly 4, wherein the clamping mechanism 3 and the floating assembly 4 are disposed on the base 1, the floating assembly 4 is used for placing a workpiece, the clamping mechanism 3 is used for clamping or loosening the workpiece, and the lifting mechanism 2 is used for lifting the base 1 to conveniently lift the workpiece to a height required by different operations.

Referring to fig. 1 and 2, the base 1 includes a guide post 12 and a frame 11, and the frame 11 is slidably coupled to the guide post 12 by a guide rod 13. Guide rod 13 cup joints in guide post 12, and guide post 12 is fixed on the platform, and the platform below has the space that holds guide rod 13 downwardly extending, and elevating system 2 and frame 11 fixed connection, when elevating system 2 drive frame 11 rose, guide rod 13 rose along guide post 12 slip, and when elevating system 2 drive frame 11 descended, guide rod 13 descended along guide post 12 slip. In the present embodiment, the lifting mechanism 2 can function as a support for the frame 11, and the guide rod 13 cooperates with the guide post 12 to fix the position of the frame 11. Preferably, the lifting mechanism 2 is connected to the center of the frame 11, and the guide rods 13 are four and divided into two groups, and the periphery of the frame 11 is divided, so that the lifting mechanism 2 can be lifted and lowered with good stability.

Further, an adjusting device 131 may be further disposed at a connection portion of the guide rod 13 and the frame 11, the adjusting device 131 is used for adjusting a height between the guide rod 13 and the frame 11, and fine adjustment may be performed on the frame 11 to maintain balance of the frame 11. Preferably, the adjusting device 131 can be set to two fixed sets of two sets of adjustments, and the two sets of adjustments can be used for adjusting the balance of the rack 11 and reducing the setting of the adjusting device 131.

Referring to fig. 1 and 4, the clamping mechanism 3 includes a driving device 33, a first chuck 31 and a second chuck 32, and the driving device 33 drives the first chuck 31 and the second chuck 32 to reciprocate along the guide rail direction, so as to clamp or unclamp the workpiece. Specifically, an accommodating cavity 111 is provided in the frame 11, the driving device 33 is provided in the accommodating cavity 111, a sliding port 112 is provided in the accommodating cavity 111, and the first chuck 31 and the second chuck 32 are connected to the driving device 33 through the sliding port 112. Preferably, two sliding ports 112 are provided, the two sliding ports 112 are arranged along the center, and the driving device 33 is driven by a servo motor to clamp the first chuck 31 and the second chuck 32 in a centering manner. In this embodiment, the driving device 33 is installed in the frame 11 and located at the middle position of the whole mechanism, so that the utilization rate of the space can be improved well, the whole structure is more attractive, and the driving device is located at the middle position, so that the clamp can be centered and clamped better and conveniently.

Further, the driving device 33 is connected to the first chuck 31 and the second chuck 32 through the connecting device 34 and reciprocates along the sliding port 112. In this embodiment, the connecting device 34 includes a screw 341 and a nut 342 matching with the screw 341, the driving device 33 is connected to the screw 341, the nut 342 is connected to the first chuck 31 and the second chuck 32, and the driving device 33 drives the screw 341 to rotate to drive the first chuck 31 and the second chuck 32 to reciprocate. Specifically, the screw 341 is driven to rotate by the forward rotation or the reverse rotation of the driving device 33 through the sprocket transmission, and the nut 342 is matched with the screw 341 to drive the first chuck 31 and the second chuck 32 to slide in a centering manner, so that the first chuck 31 and the second chuck 32 can move back and forth, and a workpiece can be clamped or loosened.

Referring to fig. 1 and 3, the floating assembly 4 includes a floating plate 41 for placing a workpiece, a floating unit 42 disposed on the frame 11 for supporting the floating plate 41, and a floating member 43 hinged to the frame 11 and the floating plate 41, respectively, and enabling the floating plate 41 to move relatively under an external force.

The floating device 42 includes a mounting seat 421 fixed to the frame 11 and a universal ball 422 rotatably disposed on the mounting seat 421, and the floating plate 41 is supported by the universal ball 422. The floating piece 43 comprises a first hinge block 431, a second hinge block 432, a guide rod 433 and a spring 434, wherein the first hinge block 431 is hinged to the floating plate 41, the second hinge block 432 is hinged to the frame 11, one end of the guide rod 433 is fixedly connected with the first hinge block 431, one end of the guide rod 432 is movably connected with the second hinge block 432, and the spring 434 is sleeved on the guide rod 433 and is arranged between the first hinge block 431 and the second hinge block 432. When the floating plate 41 is subjected to an external force, the floating plate 41 moves along the side with the larger force, and the floating member 43 moves to press the spring 434 to make the floating member 43 start to generate a certain deflection, so that the floating plate 41 moves.

In the present embodiment, five sets of floating devices 42 are provided and symmetrically spaced in the moving direction of the first chuck 31 or the second chuck 32, and preferably, the floating devices 42 are uniformly spaced. It should be noted that, when the workpiece is placed on the floating plate 41, the workpiece may be inclined to one side or inclined, when the clamping mechanism 3 drives the workpiece to be clamped in the centering manner, a certain external force is applied to the workpiece to move to the middle position for clamping, the workpiece and the floating plate 41 may slide relatively, which may cause abrasion of the workpiece, and at this time, the floating plate 41 may drive the spring 434 on the guide rod 433 to extrude the second hinge block 432 to move along with the workpiece, and the universal ball 422 may also rotate together, thereby reducing the friction force generated by the movement of the floating plate 41, so as to fix the workpiece, and make the workpiece in a relatively horizontal position, and also avoid abrasion caused by relative sliding. After the work is completed, the spring 434 is automatically restored under the elastic force, so that the floating plate 41 is automatically restored to the central position, and then waits for the next set of workpieces.

Further, the frame 11 is provided with an elastic plunger 5, and the elastic plunger 5 elastically abuts against the floating plate 41. The lower side of the floating plate 41 is provided with a concave point matched with the elastic plunger 5, and the elastic plunger 5 is correspondingly matched with the concave point when the floating plate 41 is static. A certain friction exists between the elastic plunger 5 and the lower part of the floating plate 41, which can prevent the work piece and the floating plate 41 from moving too far, resulting in irreversible damage to the spring 434 during the compression process, and thus causing damage to the equipment.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims

1. A floating heavy lifting mechanism, comprising:

2. The floating heavy lifting mechanism according to claim 1, wherein a receiving cavity is formed in the frame, the driving device is disposed in the receiving cavity, two sliding ports are formed above the receiving cavity along the central symmetry, and the first chuck and the second chuck are respectively connected to the driving device through a connecting device and reciprocate along the sliding ports.

3. The floating heavy duty lifting mechanism of claim 2 wherein said coupling means comprises a threaded rod and a nut mating with said threaded rod, said drive means being coupled to said threaded rod, said nut being coupled to said first and second jaws, said drive means driving said threaded rod to rotate to reciprocate said first and second jaws.

4. The floating heavy duty lifting mechanism as recited in claim 1, wherein said floating means comprises a mounting base fixed to said frame and free rotating universal balls mounted on said mounting base, said floating means being provided in at least two sets and symmetrically spaced along the direction of movement of said first or second clamping head.

5. The floating heavy lifting mechanism according to claim 1, wherein the floating member comprises a first hinge block, a second hinge block, a guide rod and a spring, the first hinge block is hinged to the floating plate, the second hinge block is hinged to the frame, one end of the guide rod is fixedly connected to the first hinge block, the other end of the guide rod is movably connected to the second hinge block, and the spring is sleeved on the guide rod and is arranged between the first hinge block and the second hinge block.

6. The floating heavy duty lifting mechanism of claim 1 wherein said frame has a resilient plunger, said resilient plunger resiliently abutting said floating plate.

7. A floating heavy duty lifting mechanism as claimed in claim 6, wherein said floating plate is provided on its underside with a dimple which mates with said resilient plunger, said resilient plunger correspondingly mating with said dimple when said floating plate is at rest.

8. The floating heavy duty lifting mechanism of claim 1 wherein said guide bar is connected to said frame by an adjustment means for adjusting the height between said guide bar and said frame.

9. A floating heavy lift mechanism as claimed in claim 1, wherein said lift mechanism is attached to a central location of said frame.