Directional lifting ring device with steering pair

Abstract

A directional lifting ring device with a steering pair comprises a lifting ring screw for being grabbed by a mechanical arm, a base used for being in rigid butt joint with a material container and a connecting block used for connecting the base and the lifting ring screw, a groove is formed in the middle of the upper surface of the base in a downward concave mode, and symmetrical pin shaft holes are formed in the two side walls of the base. A threaded hole for mounting a lifting bolt is concavely formed in the middle of the upper surface of the connecting block, and the lower end of the connecting block is in clearance fit with the groove; and the lower end of the connecting block is inserted into the groove on the base and then is connected through a pin shaft penetrating through the pin shaft hole and the passing groove. In a working state, a hoisted container can rotate around a revolute pair formed by a connecting block and a pin shaft of the container under the action of external force, so that the risk that the container falls off along with the hoisting ring due to the fact that the hoisting ring and the hook are easy to slip off due to rotation between the hook and the hoisting ring hole is avoided; after lifting is finished, the lifting ring can only fall down along the manger along with the connecting block according to the fixed direction, and therefore it is guaranteed that the lifting ring screw hole is located at the same determined position all the time.

Description

Technical Field

[0001] The utility model belongs to a process device for hoisting, in particular to a directional hoisting ring device with a steering pair. Background Art

[0002] In actual production, some liquids (such as boiling water, metal solutions, corrosive solutions, etc.) need to be lifted and transported, and poured from one container into another. Since the liquids being transported are some special liquids, robots are often used to assist in lifting and pouring them in production. When robots lift these special liquids, they mostly need to use a lifting ring device. When the robot grabs the lifting ring device, its lifting ring hole must be kept in a certain position, so that the robot can always grab the lifting ring hole in the same position. When the robot lifts the solution to other locations and pours it, the lifting ring device itself needs to have a steering pair. The container filled with liquid rotates along the steering pair of the lifting ring device under the action of external force, so that the liquid can be poured from one container into another. However, there are only two commonly used types of traditional standard lifting rings: one is a lifting ring with an external threaded rod, which is rigidly connected to the container. After the container is placed in a certain position, the lifting ring hole can be guaranteed to be in a certain position, which is convenient for the robot to repeatedly grasp; the other is a D-type lifting ring, which has a steering pair. After the container is lifted, it can be rotated along the steering pair of the D-type lifting ring under the action of external force, so as to pour out the liquid in the container. Although the lifting hole of the former lifting ring can ensure a certain position to facilitate the robot to repeatedly grasp, the container cannot be rotated and dumped after being lifted; the latter D-type lifting ring can be rotated and dumped after the container is lifted, but because the lifting ring of the D-type lifting ring can rotate along the steering pair of its own device, the position of the lifting hole is in an uncertain position under the action of gravity, which cannot meet the robot's repeated grasping. Summary of the invention

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies in the prior art, thereby providing a directional lifting ring device with a steering pair.

[0004] A directional lifting ring device with a steering pair, comprising:

[0005] Eye screws for the robot to grasp;

[0006] A base for rigidly docking with a material container, wherein the middle of the upper surface of the base is concave downwardly with a groove, and symmetrical pin holes are opened on both side walls;

[0007] A connecting block for connecting the base and the eye screw, wherein a threaded hole for installing the eye screw is concave in the middle of the upper surface of the connecting block, the lower end of the connecting block is in clearance with the groove, and a running groove is processed at the lower end of the connecting block;

[0008] After the lower end of the connecting block is inserted into the groove on the base, it is connected via a pin shaft penetrating through the pin shaft hole and the running groove.

[0009] The groove is in a step shape consisting of a large step groove and a small step groove connected to the lower end of the large step groove.

[0010] The large step groove is a square groove, and the bottom surface of the small step groove is a semicircular groove.

[0011] When the connecting block is lifted up with the lifting eye screw, the bottom of the running groove contacts the semi-cylindrical surface of the lower end of the pin shaft, and the bottom of the connecting block is lower than the bottom surface of the large step groove of the groove. When the connecting block is lowered with the lifting eye screw, the upper end surface of the running groove contacts the semi-cylindrical surface of the upper end of the pin shaft, and the lower surface of the cylinder is flush with the upper surface of the base.

[0012] The pin shaft is a stepped cylinder, the small step portion is clearance-matched with the pin shaft hole, one end of the small step portion is connected to the large step portion, and the other end is provided with a radial through hole, in which a cotter pin is installed.

[0013] The center line of the pin shaft hole is perpendicular to and intersects with the center line of the groove.

[0014] The lower end of the base is provided with plate ears extending to both ends, and the plate ears are provided with through holes.

[0015] The connecting block is composed of a cylinder and a cuboid connected to the lower end of the cylinder, and the lower end of the cuboid is processed into an arc shape that matches the bottom surface of the small step groove.

[0016] The utility model is simple to manufacture, low in cost and extremely easy to promote.

[0017] When the device is in working state, the hoisted container can rotate around the revolving pair formed by its own connecting block and the pin shaft under the action of external force, avoiding the risk of the lifting ring and the hook slipping due to the rotation between the hook and the lifting eye hole, thereby causing the container to fall with the lifting ring; after the lifting of the device is completed, the lifting eye screw will fall with the connecting block under the action of gravity, because the rectangular block under the connecting block is not completely pulled out of the groove of the base, under the two-way limit of the groove and the pin shaft, the lifting eye can only fall to a fixed position along the running groove in a fixed direction with the connecting block, thereby ensuring that the lifting eye screw hole is always in the same determined position, and the manipulator can repeatedly and correctly grasp the lifting eye hole without the help of other actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 AA section view;

[0020] Figure 3 for Figure 1 BB cross-sectional view;

[0021] Figure 4This is a structural schematic diagram of the connection block of the utility model;

[0022] Figure 5 for Figure 4 CC section view;

[0023] Figure 6 It is a structural schematic diagram of the base of the utility model;

[0024] Figure 7 for Figure 6 DD cross-sectional view;

[0025] Figure 8 for Figure 6 EE cross-sectional view;

[0026] In the figure: 1. eye screw, 2. nut, 3. connecting block, 4. pin, 5. base, 6. cotter pin, 7. upper surface of connecting block, 8. threaded hole, 9. cylinder, 10. lower surface of cylinder, 11. cuboid, 12. running groove, 13. upper surface of base, 14. pin hole, 15. groove, 16. through hole. DETAILED DESCRIPTION

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the base 5 can be rigidly docked with the material container, the middle of the upper surface 13 of the base is concave with a groove 15, and the two side walls are provided with symmetrical pin holes 14; the middle of the upper surface 7 of the connecting block is concave with a threaded hole 8 for mounting the eyebolt 1, and the eyebolt 1 is inserted into the threaded hole 8 after being installed with a nut 2, the lower end of the connecting block 3 is clearance-matched with the groove 15, and the lower end of the connecting block 3 is processed with a running groove 12. After the lower end of the connecting block 3 is inserted into the groove 15 on the base 5, it is connected through the pin 4 penetrating the pin hole 14 and the running groove 12. When the connecting block 3 is lifted up with the eyebolt 1, the bottom of the running groove 12 contacts the lower semi-cylindrical surface of the pin 4, and the bottom of the connecting block 3 is lower than the bottom surface of the large step groove of the groove 15. When the connecting block 3 is lowered with the eyebolt 1, the upper end surface of the running groove 12 contacts the upper semi-cylindrical surface of the pin 4, and the lower surface 10 of the cylinder is flush with the upper surface 13 of the base.

[0028] like Figure 2 As shown, the center line of the pin hole 14 is perpendicular to and intersects with the center line of the groove 15. The pin 4 is a stepped cylinder consisting of a small step portion and a large step portion connected to one end of the small step portion. The small step portion is clearance-matched with the pin hole 14. One end of the small step portion is connected to the large step portion, and the other end has a radial through hole, in which a split pin 6 is installed.

[0029] like Figure 4 , Figure 5As shown, the connecting block 3 is composed of a cylinder 9 and a cuboid 11 connected to the lower end of the cylinder 9, and the lower end of the cuboid 11 is processed into an arc shape that matches the bottom surface of the small step groove.

[0030] like Figure 6 , Figure 7 , Figure 8 As shown, the groove 15 is a step-shaped groove consisting of a large step groove and a small step groove connected to the lower end of the large step groove, and the large step groove is a square groove, and the bottom surface of the small step groove is a semicircular groove. The lower end of the base 5 extends to both ends with plate ears, and the plate ears have through holes 16, and the material container has a threaded countersunk hole that matches the through hole 16.

[0031] When in use, the base 5 is rigidly connected to the material container through the bolts installed in the corresponding through holes 16 and the countersunk holes, and then the eye screw 1 is lifted by the manipulator. The connecting block 3 is lifted along with the eye screw 1, so that the bottom cylindrical surface of the running groove 12 contacts the outer cylindrical surface of the pin shaft 4, and the rectangular parallelepiped 11 at the lower part of the connecting block 3 is pulled out from the groove 15 of the base 5. When the manipulator runs to the lifting position, another manipulator extracts the side wall of the material container to rotate the lifting material container and the base 5 around the pin shaft 4, so that the liquid in the material container can be dumped and discharged. After the discharge is completed, the material is removed. The manipulator on the side wall of the container, the base 5 and the material container rotate in the opposite direction around the pin shaft 4 under the action of gravity until the base 5 is located directly below the connecting block 3. After the lower material container reaches the specified position, the manipulator on the upper end lifting eye screw 1 is removed. Under the limitation of the groove 15 and the action of gravity, the rectangular parallelepiped 11 at the lower end of the connecting block 3 falls vertically into the groove 15. After it is in place, the lower surface 10 of the cylinder abuts against the upper surface 13 of the base, ensuring that the uppermost lifting eye screw hole of the device is vertically upward and is still in the initial fixed position before lifting, so that the manipulator can repeat the correct grasping next time, and the cycle repeats.

Claims

1. A directional lifting ring device with a steering pair, characterized in that: include: A lifting eye screw (1) for the robot to grasp; A base (5) for rigidly docking with a material container, wherein a groove (15) is formed in the middle of an upper surface (13) of the base, and symmetrical pin holes (14) are formed on both side walls; A connecting block (3) for connecting the base (5) and the eye screw (1), wherein a threaded hole (8) for mounting the eye screw (1) is concavely formed in the middle of the upper surface (7) of the connecting block, the lower end of the connecting block (3) is clearance-matched with the groove (15), and a running groove (12) is processed on the lower end of the connecting block (3); After the lower end of the connecting block (3) is inserted into the groove (15) on the base (5), it is connected via the pin shaft (4) penetrating through the pin shaft hole (14) and the running groove (12).

2. A directional lifting ring device with a steering pair according to claim 1, characterized in that: The groove (15) is in a step shape consisting of a large step groove and a small step groove connected to the lower end of the large step groove.

3. A directional lifting ring device with a steering pair according to claim 2, characterized in that: The large step groove is a square groove, and the bottom surface of the small step groove is a semicircular groove.

4. A directional lifting ring device with a steering pair according to any one of claims 1 to 3, characterized in that: When the connection block (3) is lifted up along with the eyebolt (1), the bottom of the running groove (12) contacts the lower semi-cylindrical surface of the pin shaft (4), and the bottom of the connection block (3) is lower than the bottom surface of the large step groove of the groove (15). When the connection block (3) is lowered along with the eyebolt (1), the upper end surface of the running groove (12) contacts the upper semi-cylindrical surface of the pin shaft (4), and the lower surface (10) of the cylinder is flush with the upper surface (13) of the base.

5. A directional lifting ring device with a steering pair according to claim 1, characterized in that: The pin shaft (4) is a stepped cylinder, the small step portion is clearance-matched with the pin shaft hole (14), one end of the small step portion is connected to the large step portion, and the other end has a radial through hole, in which a split pin (6) is installed.

6. A directional lifting ring device with a steering pair according to claim 1 or 5, characterized in that: The center line of the pin hole (14) is perpendicular to and intersects with the center line of the groove (15).

7. A directional lifting ring device with a steering pair according to claim 1, characterized in that: The lower end of the base (5) is provided with plate ears extending toward both ends, and the plate ears are provided with through holes (16).

8. A directional lifting ring device with a steering pair according to claim 1, characterized in that: The connecting block (3) is composed of a cylinder (9) and a cuboid (11) connected to the lower end of the cylinder (9), and the lower end of the cuboid (11) is processed into an arc shape that matches the bottom surface of the small step groove.

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