Grabbing and fixing device for connecting battery liquid injection hole with liquid injection rubber plug

Abstract

The utility model discloses a grabbing and fixing device for a battery liquid injection hole connection liquid injection rubber plug, and belongs to the technical field of liquid injection hole connection liquid injection rubber plugs, the grabbing and fixing device comprises a first insertion rod and a second insertion rod, the upper end diameter of the first insertion rod and the lower end diameter of the second insertion rod are larger than those of the first insertion rod and the second insertion rod, and the first insertion rod and the second insertion rod are correspondingly arranged; the lower ends of the first inserting rod and the second inserting rod are used for being inserted into an inner hole of a rubber plug; a first butt joint part is fixedly arranged at the upper end of the first inserting rod, a second butt joint part is fixedly arranged at the upper end of the second inserting rod, and the first butt joint part and the second butt joint part are used for being connected with a driving element for driving the first inserting rod and the second inserting rod to move up and down and left and right. Controllable force tensioning and adjustable limitation in the up-down freedom degree direction are achieved through opening and closing of the left and right transverse finger clamps, deformation and damage in the hole diameter of the rubber plug are greatly reduced, the rubber plug can be rapidly and accurately inserted into a liquid injection hole, the butt joint sealing performance of the rubber plug and an upper continuous liquid injection nozzle is greatly improved, and the defects of leakage detection NG, liquid overflowing and the like are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of connecting a liquid injection hole with a liquid injection plug, and in particular relates to a grabbing and fixing device for connecting a liquid injection hole with a liquid injection plug of a battery. Background Art

[0002] When the injection hole is connected to the injection plug, the industry currently uses a tapered needle method, which directly inserts the injection needle into the plug, hard contacts the injection plug, and uses the principle of deformation and expansion of the pore size of the injection plug to achieve the gripping and positioning of the plug. The problems with this method are: it greatly reduces the service life of the injection plug, frequent deformation leads to reduced positioning accuracy, it cannot be better adapted to the injection hole, and the sealing of the connection with the upper injection nozzle (EPDM material) is reduced, which directly leads to an increase in the defective rate of leakage detection and injection in the subsequent process. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a grabbing and fixing device for connecting a battery liquid injection hole to a liquid injection plug, thereby solving the problems in the above-mentioned background technology.

[0004] The purpose of the utility model is achieved as follows: a grabbing and fixing device for connecting a battery filling hole to a filling plug, comprising a first plug rod and a second plug rod, wherein the diameter of the upper end of the first plug rod and the second plug rod is larger than the diameter of the lower end, and the first plug rod and the second plug rod are arranged correspondingly; a first docking portion is fixedly provided at the upper end of the first plug rod, a second docking portion is fixedly provided at the upper end of the second plug rod, and driving elements are provided at the upper ends of the first docking portion and the second docking portion.

[0005] Preferably, the first plug rod and the second plug rod are both in the shape of an inverted semi-cone, and the planes of the first plug rod and the second plug rod are arranged correspondingly.

[0006] Preferably, the first docking portion and the first insertion rod are integrally formed, and the first docking portion is formed by cutting a curved surface into a flat groove at the upper end of the first insertion rod, and a first upper through hole and a first lower through hole are arranged inside the flat groove, and the first upper through hole and the first lower through hole are used to connect the driving element.

[0007] Preferably, the second docking portion and the second insertion rod are integrally formed, and the second docking portion is formed by cutting the curved surface into a flat groove at the upper end of the second insertion rod, and a second upper through hole and a second lower through hole are arranged inside the flat groove, and the second upper through hole and the second lower through hole are used to connect the driving element.

[0008] Preferably, the driving element is a motor.

[0009] Preferably, the driving element is a cylinder.

[0010] The beneficial effects of the utility model are as follows: the original method of directly inserting the injection needle into the rubber plug is changed to inserting the needle into the rubber plug first, then separating the rubber plug hole, and then injecting the liquid. The invention is compatible with injection plugs of different apertures and can be inserted into the rubber plug hole. The controllable force tension is achieved by opening and closing the left and right lateral finger clamps, and the upper and lower degrees of freedom can be adjusted and limited, which greatly reduces the deformation and damage of the rubber plug aperture, and realizes fast and accurate insertion into the injection hole. The sealing performance of the docking with the upper injection nozzle is greatly improved, and the defects such as leakage detection NG and overflow are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a main structural schematic diagram of the utility model;

[0012] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0014] In the figure: 1, first plug rod 2, second plug rod 3, first docking portion 4, second docking portion 5, first upper through hole 6, first lower through hole 7, rubber plug 8, second upper through hole 9, second lower through hole. DETAILED DESCRIPTION

[0015] The following is a further detailed description of the present invention in conjunction with the accompanying drawings. It should be noted that all directional words such as up, down, front, back, left, and right that appear in the present invention are based on Figure 1 The directional words are made for reference figures, and all directional words do not limit the utility model, but are only for more clear description and explanation of the utility model. Example

[0016] like Figure 1-3 As shown, the present embodiment discloses a grabbing and fixing device for connecting a battery filling hole to a filling plug, which comprises a first plug rod 1 and a second plug rod 2, wherein the diameter of the upper end of the first plug rod 1 and the second plug rod 2 are larger than the diameter of the lower end, and the first plug rod 1 and the second plug rod 2 are arranged correspondingly, and the lower ends of the first plug rod 1 and the second plug rod 2 are used to be inserted into the inner hole of the plug 7; a first docking portion 3 is fixedly provided at the upper end of the first plug rod 1, and a second docking portion 4 is fixedly provided at the upper end of the second plug rod 2, and the first docking portion 3 and the second docking portion 4 are used to connect a driving element that drives the first plug rod 1 and the second plug rod 2 to move up, down, left and right.

[0017] The driving element adopts a motor or a cylinder (or a similar type of executive driving element) to connect the finger clamp to fix the contoured spline, which can realize the up and down and left and right displacement of the spline, and is used to tighten the inner hole of the liquid injection plug 7 to achieve precise positioning with the battery liquid injection hole and the sleeve cup liquid injection nozzle. The plug 7 is not easy to be damaged or worn, and the service cycle life is extended. The structural design is simple, the cost is low, and it is easy to promote and apply.

[0018] This embodiment changes the original method of directly inserting the injection needle into the rubber plug 7 to inserting the needle into the rubber plug 7 first, then separating the holes of the rubber plug 7, and then injecting the liquid. The invention is compatible with injection plugs 7 with different apertures and can be inserted into the holes of the rubber plug 7. The controllable force tension is achieved by opening and closing the left and right lateral finger clamps, and the upper and lower degrees of freedom can be adjusted and limited, which greatly reduces the deformation and damage of the inner aperture of the rubber plug 7, and realizes fast and accurate insertion into the injection hole. The sealing performance of the docking with the upper connected injection nozzle is greatly improved, and the defects such as leakage detection NG and overflow are reduced. Example

[0019] like Figure 1-3 As shown, the present embodiment discloses a grabbing and fixing device for connecting a battery filling hole to a filling plug, which comprises a first plug rod 1 and a second plug rod 2, wherein the diameter of the upper end of the first plug rod 1 and the second plug rod 2 are larger than the diameter of the lower end, and the first plug rod 1 and the second plug rod 2 are arranged correspondingly, and the lower ends of the first plug rod 1 and the second plug rod 2 are used to be inserted into the inner hole of the plug 7; a first docking portion 3 is fixedly provided at the upper end of the first plug rod 1, and a second docking portion 4 is fixedly provided at the upper end of the second plug rod 2, and the first docking portion 3 and the second docking portion 4 are used to connect a driving element that drives the first plug rod 1 and the second plug rod 2 to move up, down, left and right.

[0020] For better effect, the first plug rod 1 and the second plug rod 2 are both in the shape of an inverted semi-cone, and the planes of the first plug rod 1 and the second plug rod 2 are arranged correspondingly.

[0021] For better effect, the first docking portion 3 and the first insertion rod 1 are integrally formed, and the first docking portion 3 is formed by cutting the curved surface into a flat groove at the upper end of the first insertion rod 1, and a first upper through hole 5 and a first lower through hole 6 are arranged inside the flat groove, and the first upper through hole 5 and the first lower through hole 6 are used to connect the driving element.

[0022] For better effect, the second docking part 4 and the second plug rod 2 are integrally formed, and the second docking part 4 is formed by cutting the curved surface into a flat groove at the upper end of the second plug rod 2, and the interior of the flat groove is provided with a second upper through hole 8 and a second lower through hole 9, and the second upper through hole 8 and the second lower through hole 9 are used to connect the driving element. The driving element uses a motor or a cylinder (or a similar type of execution driving element) to connect the finger clamp to fix the contoured insert, which can realize the up and down and left and right displacement of the insert, and is used to tighten the inner hole of the injection plug 7 to achieve precise positioning with the battery injection hole and the sleeve cup injection nozzle. The plug 7 is not easy to be damaged or worn, and the service life is extended.

[0023] This embodiment avoids the original gear-inserting machine from hard contact with the inner hole of the rubber plug 7, and relies on extrusion deformation to grasp and position. The invention is simple in design, and the rubber plug 7 does not deform during the up and down grasping and positioning movement. Pressing down into the hole can achieve synchronous actions such as rotation + gear-inserting merging, which greatly saves the use cost and improves the efficiency of positioning movement.

[0024] This embodiment changes the original method of directly inserting the injection needle into the rubber plug 7 to inserting the needle into the rubber plug 7 first, then separating the holes of the rubber plug 7, and then injecting the liquid. The invention is compatible with injection plugs 7 with different apertures and can be inserted into the holes of the rubber plug 7. The controllable force tension is achieved by opening and closing the left and right lateral finger clamps, and the upper and lower degrees of freedom can be adjusted and limited, which greatly reduces the deformation and damage of the inner aperture of the rubber plug 7, and realizes fast and accurate insertion into the injection hole. The sealing performance of the docking with the upper connected injection nozzle is greatly improved, and the defects such as leakage detection NG and overflow are reduced.

[0025] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gripping and fixing device for connecting a battery liquid injection hole to a liquid injection plug, comprising a first insertion rod (1) and a second insertion rod (2), characterized in that: The diameter of the upper end of the first plug rod (1) and the diameter of the lower end of the second plug rod (2) are both larger than that of the lower end, and the first plug rod (1) and the second plug rod (2) are arranged correspondingly; a first docking portion (3) is fixedly provided at the upper end of the first plug rod (1), and a second docking portion (4) is fixedly provided at the upper end of the second plug rod (2); and driving elements are provided at the upper ends of the first docking portion (3) and the second docking portion (4).

2. The grabbing and fixing device for connecting the battery liquid injection hole to the liquid injection plug according to claim 1, characterized in that: The first insertion rod (1) and the second insertion rod (2) are both in the shape of an inverted semi-cone, and the planes of the first insertion rod (1) and the second insertion rod (2) are arranged correspondingly.

3. The grabbing and fixing device for connecting the battery liquid injection hole to the liquid injection plug according to claim 1, characterized in that: The first docking portion (3) and the first insertion rod (1) are integrally formed, and the first docking portion (3) is formed by cutting a curved surface at the upper end of the first insertion rod (1) into a flat groove, and a first upper through hole (5) and a first lower through hole (6) are arranged inside the flat groove, and the first upper through hole (5) and the first lower through hole (6) are used to connect the driving element.

4. The grabbing and fixing device for connecting the battery liquid injection hole to the liquid injection plug according to claim 1, characterized in that: The second docking portion (4) and the second insertion rod (2) are integrally formed, and the second docking portion (4) is formed by cutting a curved surface at the upper end of the second insertion rod (2) into a flat groove, and a second upper through hole (8) and a second lower through hole (9) are provided inside the flat groove, and the second upper through hole (8) and the second lower through hole (9) are used to connect the driving element.

5. The grabbing and fixing device for connecting the battery liquid injection hole to the liquid injection plug according to claim 1, characterized in that: The driving element is a motor.

6. The grabbing and fixing device for connecting the battery liquid injection hole to the liquid injection plug according to claim 1, characterized in that: The driving element is a cylinder.

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