CN-121983801-A - Plug-in terminal between battery and motor and processing method thereof

CN121983801ACN 121983801 ACN121983801 ACN 121983801ACN-121983801-A

Abstract

The invention belongs to the technical field of battery plug terminals, and particularly relates to a plug terminal between a battery and a motor, which comprises a square block and a round bar, wherein one side surface of the square block and one end of the round bar are fixed through friction welding, the round bar is positioned on the upper side of the square block, a ball head, a first cylinder, a second cylinder and a third cylinder are sequentially arranged at the joint of the round bar from an end head to the square block, the ball head, the first cylinder, the second cylinder and the third cylinder are plug parts, the diameters of the ball head, the first cylinder, the second cylinder and the third cylinder are gradually increased, a round hole is formed in the middle of the rear part of the square block, the square block and the round bar are fixed through friction welding, and a finished product is obtained through machining. The invention has high processing precision, high material utilization rate and low cost.

Inventors

YUAN CHENG
YUAN GUOPING

Assignees

江苏恒立弹簧有限公司

Dates

Publication Date: 20260505
Application Date: 20260204

Claims (4)

1. The utility model provides a grafting terminal between battery and the motor, includes square (1) and round bar (2), its characterized in that, the one end of square (1) side and round bar (2) is passed through friction welding and is fixed and round bar (2) are located the upside of square (1), round bar (2) set gradually bulb (21), cylinder one (22), cylinder two (23) and cylinder three (24) from the end toward the junction with square (1), bulb (21), cylinder one (22), cylinder two (23) and cylinder three (24) are grafting portion and diameter increase gradually, round hole (11) are offered in the middle of the rear portion of square (1).
2. The plug terminal between a battery and a motor according to claim 1, wherein a plane (25) is formed downwards on one side, close to the second cylinder (23), of the third cylinder (24), a connecting rod (26) is formed between the ball head (21) and the first cylinder (22), the diameter of the connecting rod (26) is smaller than that of the ball head (21), and the first cylinder (22), the second cylinder (23) and the third cylinder (24) are connected obliquely and smoothly.
3. A method of processing a plug terminal between a battery and a motor, the method comprising the steps of: Step one, fixing by friction welding Applying certain axial pressure to the square block (1) and the round bar (2) at a place needing to be fixed, enabling the contact surface to do friction movement, heating the contact surface to a welding temperature, stopping movement, respectively applying upsetting pressure to the square block (1) and the round bar (2), enabling the square block (1) and the round bar (2) to generate plastic deformation, and then welding after cooling; Step two, machining Firstly, a first cylinder (22), a second cylinder (23) and a third cylinder (24) are machined on the round bar (2), then a ball head (21) and a connecting rod (26) are machined at the front end of the first cylinder (22), finally a plane (25) is machined at the front side of the third cylinder (24), and finally, after the square block (1) is machined to be of a required size, a round hole (11) is formed in the middle of the rear part.
4. A method of manufacturing a plug terminal between a battery and a motor according to claim 3, wherein in the first step, the process parameters of the welding apparatus including the axial pressure and the welding temperature are monitored by an industrial personal computer.

Description

Plug-in terminal between battery and motor and processing method thereof Technical Field The invention belongs to the technical field of battery plug terminals, and particularly relates to a plug terminal between a battery and a motor and a processing method thereof. Background The existing plug-in terminal is generally integrated and is processed into a finished product by forging and machining, but the plug-in connector in the mode generally cannot meet the eccentric requirement of part of the plug-in terminal on the central line of the whole plug-in terminal, has low material utilization rate and high cost, and if the eccentric plug-in terminal is produced by adopting a general processing mode, a great deal of time and effort are required, and the processing precision is not high enough. Disclosure of Invention In order to solve the problems in the prior art, the invention provides the plug-in terminal between the battery and the motor and the processing method thereof, which have high processing precision, high material utilization rate and low cost. In order to achieve the aim, the technical scheme is that the plug-in terminal between the battery and the motor comprises a square block and a round bar, one side surface of the square block and one end of the round bar are fixed through friction welding, the round bar is located on the upper side of the square block, the round bar is sequentially provided with a ball head, a first cylinder, a second cylinder and a third cylinder from the end head to the joint of the square block, the ball head, the first cylinder, the second cylinder and the third cylinder are plug-in parts, the diameters of the ball head, the first cylinder, the second cylinder and the third cylinder are gradually increased, and a round hole is formed in the middle of the rear part of the square block. Further, a plane is downwards arranged on one side, close to the second cylinder, of the third cylinder, a connecting rod is arranged between the ball head and the first cylinder, the diameter of the connecting rod is smaller than that of the ball head, and the first cylinder, the second cylinder and the third cylinder are connected obliquely and smoothly. The other technical scheme is that the processing method of the plug-in terminal between the battery and the motor comprises the following steps: Step one, fixing by friction welding Applying certain axial pressure to the square and round bars at the place needing to be fixed, enabling the contact surface to do friction movement, heating the contact surface to the welding temperature, stopping movement, respectively applying upsetting pressure to the square and round bars to enable the square and round bars to generate plastic deformation, and welding after cooling; Step two, machining Firstly, a first cylinder, a second cylinder and a third cylinder are machined on a round bar, then a ball head and a connecting rod are machined at the front end of the first cylinder, finally a plane is machined at the front side of the third cylinder, and finally a round hole is formed in the middle of the rear part after a square block is machined to a required size. Further, in the first step, the industrial personal computer monitors the technological parameters of the welding equipment, including the axial pressure and the welding temperature. Compared with the prior art, the welding device has the beneficial effects that the two small iron blocks are fixedly connected through friction welding, the material utilization rate is greatly improved, the cost is greatly reduced after machining, the connecting surface of the two small iron blocks is better and the conductivity is better after friction welding, the round bar is fixed on the upper side of the side surface of the square block, the machining precision is high, and the industrial personal computer is used for monitoring the friction welding equipment, so that the process stability of the welding equipment is ensured. Drawings FIG. 1 is a schematic diagram of a first embodiment of the present invention; FIG. 2 is a second schematic diagram of the structure of the present invention; Fig. 3 is a schematic diagram of a third embodiment of the present invention. Detailed Description The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Referring to fig. 1to 3, the present invention provides a technical solution as follows: the utility model provides a grafting terminal between battery and the motor, including square 1 and round bar 2, square 1 and round bar 2 are the iron plat