Mechanical clamping jaw for grabbing special-shaped pipe fitting

Abstract

The utility model relates to the technical field of manipulators, in particular to a mechanical clamping jaw for grabbing special-shaped pipe fittings. Comprising a lifting arm and a bearing body, first arms are rotationally installed on the two sides of the bottom of the lifting arm respectively, second arms are slidably installed at the ends of the first arms, the bearing body is connected to the second arms, a movable clamping jaw is slidably installed on the bearing body, and a fixed clamping jaw is fixedly installed on the bearing body; the supporting body extends in the horizontal direction away from the lifting arm, so that the supporting body can extend into the lower side of the special-shaped pipe fitting to support the special-shaped pipe fitting with a curved surface structure, and the special-shaped pipe is limited through the movable clamping jaw and the fixed clamping jaw to be prevented from slipping off and falling off from the supporting body. The rotating angles of the two first arms on the lifting arm and the positions of the two second arms in the corresponding first arms are manually adjusted, so that the horizontal distance and the vertical distance of the two bearing bodies are changed, the supporting position of the special-shaped pipe fitting is adjusted, and the special-shaped pipe fitting supporting device is suitable for special-shaped pipe fittings of various lengths and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a mechanical clamp for grabbing special-shaped pipe fittings. Background Art

[0002] Due to their special shapes, special-shaped pipe fittings often have complex curved surfaces and internal structures. When handling special-shaped pipe fittings, custom clamps or flexible clamps are usually used to reduce mechanical damage to the pipe fittings. Customized clamps can accurately match the shape of special-shaped pipe fittings and provide stable clamping, but their disadvantages are high cost and the clamps cannot be used once the shape of the pipe fittings changes. Flexible clamps are widely used because of their strong adaptability and ability to fit the contours of special-shaped pipe fittings, but their disadvantage is that the clamping force is relatively weak and is not suitable for handling large pipe fittings.

[0003] Based on the above situation, the customized clamps in the prior art have precise matching and stable clamping, but are costly and cannot be used universally; the flexible clamps have strong adaptability and fit the contour of the pipe fittings, but the clamping force is weak and is not suitable for the transportation of large special-shaped pipe fittings. Therefore, the present application provides a mechanical clamp for grasping special-shaped pipe fittings. Utility Model Content

[0004] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a mechanical clamp for grasping special-shaped pipe fittings, which can penetrate into the lower side of the special-shaped pipe fittings, lift the special-shaped pipe fittings with curved surface structures, and adjust the lifting position of the special-shaped pipe fittings to adapt to special-shaped pipe fittings of various lengths and sizes.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a mechanical clamp for grabbing special-shaped pipe fittings, the mechanical clamp comprises a lifting arm, a first arm, a second arm and a supporting body, the first arm is rotatably mounted on both sides of the bottom of the lifting arm, the second arm is slidably mounted on the end of the first arm, the first arm and the second arm are positionally locked by a fastener, the second arm is connected to the supporting body, the supporting body acts on the bottom of the grabbed special-shaped pipe to take the special-shaped pipe away from the containing area, a movable clamp is slidably mounted on the supporting body, a fixed clamp is fixedly mounted on the supporting body, and the movable clamp and the fixed clamp can respectively abut against the front and rear sides of the grabbed special-shaped pipe.

[0007] Furthermore, a rotating sleeve is fixedly mounted on the supporting body, and the rotating sleeve is rotatably connected to the second arm.

[0008] Furthermore, elastic pads are attached to the outer sides of the movable clamping jaw and the fixed clamping jaw.

[0009] Furthermore, the outer side surface of the supporting body is a cylindrical surface.

[0010] Furthermore, a first hydraulic rod is installed on the second arm, a cross column is fixedly installed on the movable end of the first hydraulic rod, and the cross column is slidably installed in the groove arm at the end of the supporting body.

[0011] In order to adjust the position of the movable clamping jaw in the supporting body, an optional technical solution is that the movable clamping jaw is slidably installed in the supporting body, and the two are locked in position by a fastener.

[0012] In order to adjust the position of the movable clamp in the supporting body, another optional technical solution is that the movable clamp is slidably installed in the supporting body, a second hydraulic rod is installed in the supporting body, and the movable end of the second hydraulic rod is fixedly connected to the movable clamp.

[0013] Furthermore, a disc-shaped positioning end is provided at one end of the first arm close to the lifting arm, and a plurality of threaded holes are provided on the disc-shaped positioning end. After the screw passes through the lifting arm, the thread is screwed into one of the plurality of threaded holes to lock the position of the lifting arm and the disc-shaped positioning end.

[0014] Furthermore, an observation port is provided on the lifting arm.

[0015] Furthermore, the containing area is a wooden pallet or a foam board.

[0016] Furthermore, the lifting arm is detachably fixedly connected to the fork of a forklift or the hook of a crane, and the crane can be a bridge crane or a gantry crane.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The mechanical clamp for grabbing special-shaped pipe fittings in the example of the utility model, the supporting body extends in the horizontal direction away from the lifting arm, so that it can reach the lower side of the special-shaped pipe fitting, lift the special-shaped pipe fitting with a curved surface structure, and then use the movable clamp and the fixed clamp to limit the special-shaped pipe to prevent the special-shaped pipe from slipping off and falling on the supporting body.

[0019] 2. The mechanical clamp for grabbing special-shaped pipe fittings in the example of the utility model, the rotating sleeve can rotate relative to the second arm, so that the movable clamp and the fixed clamp are in a flat state or an upright state, so that the supporting body can more smoothly penetrate into the lower side of the special-shaped pipe fitting, reducing the size requirement for the insertion space on the lower side of the special-shaped pipe fitting.

[0020] 3. The mechanical clamp for grabbing special-shaped pipes in the example of the utility model has elastic pads made of rubber or silicone attached to the outer sides of the movable clamp and the fixed clamp to reduce mechanical damage to the special-shaped pipes.

[0021] 4. In the mechanical gripper for grabbing special-shaped pipes of the utility model, the outer side surface of the supporting body is a cylindrical surface, which can avoid scratching the outer side surface of the special-shaped pipe when the special-shaped pipe is lifted and the supporting body is rotated.

[0022] 5. The mechanical gripper for grabbing special-shaped pipe fittings in the example of the utility model manually adjusts the rotation angles of the two first arms on the lifting arms and the positions of the two second arms in their respective corresponding first arms, so that the horizontal and vertical spacings of the two supporting bodies are changed, and the lifting position of the special-shaped pipe fittings is adjusted to adapt to special-shaped pipe fittings of various lengths and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 The overall structure of the mechanical gripper for grabbing special-shaped pipes provided in the embodiment of the utility model is schematically shown. Figure 1 ;

[0025] Figure 2 The overall structure of the mechanical gripper for grabbing special-shaped pipes provided in the embodiment of the utility model is schematically shown. Figure 2 ;

[0026] Figure 3 A partial enlarged view of the lifting arm provided in the embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of the first arm and the second arm provided in an embodiment of the utility model;

[0028] Figure 5 A schematic diagram of the structure of the supporting body and the movable clamping claw provided in an embodiment of the utility model;

[0029] Figure 6 This is a cross-sectional view of the supporting body and the movable clamping jaw provided in the embodiment of the utility model.

[0030] In the figure: 1 special-shaped tube, 2 containing area, 11 lifting arm, 12 first arm, 13 second arm, 14 disc-shaped positioning end, 15 observation port, 21 supporting body, 22 movable clamping jaw, 23 fixed clamping jaw, 24 rotating sleeve, 25 slot arm, 26 first hydraulic rod, 27 second hydraulic rod. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0037] Embodiment 1:

[0038] like Figure 1As shown, the present embodiment provides a mechanical gripper for grasping special-shaped pipe fittings, comprising a lifting arm 11, a first arm 12, a second arm 13 and a supporting body 21. The first arms 12 are rotatably mounted on both sides of the bottom of the lifting arm 11, and the second arm 13 is slidably mounted on the end of the first arm 12. The first arm 12 and the second arm 13 are locked in position by fasteners. The second arm 13 is connected to the supporting body 21, and the supporting body 21 extends in a horizontal direction away from the lifting arm 11. The supporting body 21 acts on the bottom of the grasped special-shaped pipe 1 to take the special-shaped pipe 1 away from the containing area 2. The containing area 2 can adopt a wooden pallet or a foam board. A movable jaw 22 is slidably mounted on the supporting body 21, and a fixed jaw 23 is fixedly mounted on the supporting body 21. The movable jaw 22 and the fixed jaw 23 can respectively abut against the front and rear sides of the grasped special-shaped pipe 1.

[0039] When using the supporting body 21 to grab the special-shaped pipe 1, the lifting arm 11 is connected to the fork of the forklift or the hook of the crane, and the lifting arm 11 is moved to drive the two supporting bodies 21 to penetrate into the lower side of the special-shaped pipe fitting, and then the lifting arm 11 is moved vertically to lift the special-shaped pipe fitting with a curved surface structure, and then the movable clamp 22 and the fixed clamp 23 are used to limit the special-shaped pipe 1 to prevent the special-shaped pipe 1 from slipping and falling on the supporting body 21.

[0040] like Figure 2-4 As shown, a disc-shaped positioning end 14 is provided at one end of the first arm 12 close to the lifting arm 11, and a plurality of threaded holes are provided on the disc-shaped positioning end 14. After the screw passes through the lifting arm 11, the screw is screwed into one of the plurality of threaded holes to lock the position of the lifting arm 11 and the disc-shaped positioning end 14. An observation port 15 is provided on the lifting arm 11 for observing the relative position of the screw and the threaded hole.

[0041] When faced with special-shaped pipe fittings of different lengths and sizes, manually adjust the rotation angles of the two first arms 12 on the lifting arm 11 and the positions of the two second arms 13 in their respective corresponding first arms 12, so that the horizontal and vertical spacings of the two supporting bodies 21 are changed, and the lifting position of the special-shaped pipe fittings is adjusted to adapt to special-shaped pipe fittings of various lengths and sizes.

[0042] In order to reduce the size requirement for the insertion space on the lower side of the special-shaped pipe fitting, a rotating sleeve 24 is fixedly installed on the supporting body 21, so that the rotating sleeve 24 is rotatably connected to the second arm 13, and a first hydraulic rod 26 is installed on the second arm 13, and a cross column is fixedly installed on the movable end of the first hydraulic rod 26, so that the cross column is slidably installed in the groove arm 25 at the end of the supporting body 21;

[0043] By starting the first hydraulic rod 26, the cross column slides in the slot arm 25, driving the slot arm 25 and the supporting body 21 to rotate together, so that the movable jaw 22 and the fixed jaw 23 are in a flat state or an upright state, so that the supporting body 21 can more smoothly penetrate into the lower side of the special-shaped pipe fitting; in this process, since the outer side surface of the supporting body 21 is a cylindrical surface, scratches on the outer side surface of the special-shaped pipe 1 can be avoided.

[0044] In this embodiment, the movable clamping jaw 22 is slidably installed in the supporting body 21, and the two are locked in position by a fastener.

[0045] In order to reduce the mechanical damage to the special-shaped tube 1, elastic pads made of rubber or silicone are attached to the outer sides of the movable jaws 22 and the fixed jaws 23. The elastic deformation ability of the elastic pads is utilized to prevent the movable jaws 22 and the fixed jaws 23 from squeezing and deforming the special-shaped tube 1.

[0046] Embodiment 2:

[0047] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 6 As shown, in this embodiment, the movable clamp 22 is slidably installed in the supporting body 21, and a second hydraulic rod 27 is installed in the supporting body 21. The movable end of the second hydraulic rod 27 is fixedly connected to the movable clamp 22. The second hydraulic rod 27 is started to adjust the position of the movable clamp 22 in the supporting body 21, thereby increasing the clamping force of the special-shaped pipe 1 and reducing the amount of manual labor.

[0048] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0049] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the remaining technical features will not be described here in detail.

Claims

1. A mechanical gripper for grabbing special-shaped pipe fittings, characterized in that: The invention comprises a lifting arm (11), wherein first arms (12) are rotatably mounted on both sides of the bottom of the lifting arm (11), a second arm (13) is slidably mounted on the end of the first arm (12), a supporting body (21) is connected to the second arm (13), the supporting body (21) acts on the bottom of the grasped special-shaped tube (1) to take the special-shaped tube (1) away from the containing area (2), and a movable clamping jaw (22) and a fixed clamping jaw (23) are arranged on the supporting body (21), and the movable clamping jaw (22) and the fixed clamping jaw (23) can respectively abut against the front and rear sides of the grasped special-shaped tube (1).

2. The mechanical gripper for grabbing special-shaped pipe fittings according to claim 1, characterized in that: A rotating sleeve (24) is fixedly mounted on the supporting body (21), and the rotating sleeve (24) is rotatably connected to the second arm (13).

3. The mechanical gripper for grabbing special-shaped pipe fittings according to claim 1, characterized in that: The outer side surface of the supporting body (21) is a cylindrical surface.

4. The mechanical gripper for grabbing special-shaped pipes according to claim 2, characterized in that: The second arm (13) is mounted with a first hydraulic rod (26), the movable end of the first hydraulic rod (26) is fixedly mounted with a cross column, and the cross column is slidably mounted in a slot arm (25) at the end of the supporting body (21).

5. The mechanical gripper for grabbing special-shaped pipe fittings according to claim 1, characterized in that: The movable clamping claw (22) is slidably mounted in the supporting body (21), and the two are locked in position by a fastener.

6. The mechanical gripper for grabbing special-shaped pipes according to claim 1, characterized in that: The movable clamping claw (22) is slidably mounted in the supporting body (21), a second hydraulic rod (27) is mounted in the supporting body (21), and a movable end of the second hydraulic rod (27) is fixedly connected to the movable clamping claw (22).

7. The mechanical gripper for grabbing special-shaped pipes according to claim 1, characterized in that: A disc-shaped positioning end (14) is provided at one end of the first arm (12) close to the lifting arm (11), and a plurality of threaded holes are provided on the disc-shaped positioning end (14).

8. The mechanical gripper for grabbing special-shaped pipes according to claim 6, characterized in that: The lifting arm (11) is provided with an observation port (15).

9. The mechanical gripper for grabbing special-shaped pipes according to claim 1, characterized in that: The containing area (2) is a wooden pallet or a foam board.

10. The mechanical gripper for grabbing special-shaped pipes according to claim 1, characterized in that: The lifting arm (11) is detachably fixedly connected to the fork of a forklift or the hook of a crane.

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