CN118720390A - An automated welding robot - Google Patents

Abstract

The invention relates to the technical field of welding processing of lithium batteries, in particular to an automatic welding robot; comprises an equipment rack; the device comprises a device frame, a battery pack, a cover plate, a welding mechanism, a shaping mechanism, a fixing mechanism, a shaping mechanism and a fixing mechanism, wherein the device frame is provided with the bottom plate; according to the shaping mechanism provided by the invention, the lug is limited and aligned through the limiting part to avoid the lug from shifting, then the welding mechanism moves downwards, the pushing part drives the pressing part to move downwards to extrude the lug, so that the lug is attached to the pole piece, and then the pushing part pushes the lower pressing plate to keep extruding the lug and horizontally move at the same time so as to tension and flatten the lug, so that the attaching degree between the lug and the pole piece is improved, and the welding quality of the lug and the pole piece is improved.

Description

An automated welding robot

Technical Field

The present invention relates to the technical field of lithium battery welding processing, and in particular to an automatic welding robot.

Background Art

Lithium battery is a rechargeable secondary battery. Due to its advantages such as high energy density, long cycle life and low self-discharge rate, it is widely used in portable electronic devices, electric vehicles, energy storage systems and other fields. Lithium battery is mainly composed of battery pack, casing, cover plate, pole ear, etc. The battery pack is provided with positive and negative pole sheets. The pole ear and the cover plate as well as the pole ear and the pole sheet of the battery pack are connected by ultrasonic welding. The specific welding method is to first weld a pair of pole ears to the terminal of the cover plate, and then connect the pole ear with the cover plate to the pole sheet on the battery pack and perform welding processing in sequence through an ultrasonic welding machine.

However, in the current process of welding the pole ear with the cover plate to the pole piece on the battery pack, the following problems exist: since the pole ear is thin and soft, the pole ear and the pole piece on the battery pack are connected manually or by simple mechanical devices. During welding, the pole ear is easy to move, resulting in deviation in the welding position, and the contact surface between the pole ear and the pole piece is easy to be uneven, and bubbles are easily generated during welding, thereby affecting the quality of lithium battery welding.

Summary of the invention

In view of the above problems, an embodiment of the present application provides an automated welding robot to solve the above-mentioned technical problems.

In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: the embodiment of the present application provides an automated welding robot, an automated welding robot, comprising an equipment frame; a base plate is installed on the equipment frame, and a fixing mechanism for fixing the battery pack and the cover plate is symmetrically arranged on the upper end of the base plate, a welding mechanism and a shaping mechanism are arranged between the symmetrical fixing mechanisms, and the welding mechanism is located above the shaping mechanism.

The shaping mechanism includes a support plate, a support plate is installed at the lower end of the base plate, two groups of push-pull components are arranged on the support plate symmetrically, each group of push-pull components is composed of two push-pull rods symmetrically front and back, the upper ends of the two push-pull rods in the same group slide through the rectangular holes and are jointly installed with a supporting plate, the lower ends of the four push-pull rods slide through the support plate and are jointly installed with a No. 1 connecting plate, a No. 1 cylinder is fixedly installed at the lower end of the base plate, and the telescopic end of the No. 1 cylinder is fixedly connected to the No. 1 connecting plate.

The upper end of the supporting plate is provided with a limiting portion for limiting the deviation of the pole ear, and the limiting portion is provided with a pressing portion for pressing the pole ear downward to fit with the pole piece on the battery pack.

The welding mechanism includes a No. 2 cylinder, which is installed on the upper end of the base plate, and a connecting plate is installed on the telescopic end of the No. 2 cylinder. Two fixed plates are symmetrically installed on the lower end of the connecting plate. Welding components corresponding to the limiting parts are arranged on the fixed plates. A pushing part for pushing the pressing part to vertically press the pole ear is arranged on the fixed plate. A pushing part for pushing the pressing part to move horizontally to tension the pole ear is also arranged on the fixed plate.

As a preferred embodiment, the limiting part includes a limiting component, and two groups of limiting components are symmetrically arranged on the supporting plate. Each group of limiting components is composed of two limiting plates symmetrically arranged in the front and back. The limiting plates are concave structures, and rectangular grooves corresponding to the limiting plates are opened on the supporting plate. A slide plate that slides through the corresponding rectangular groove is fixedly installed at the lower end of the limiting plate, and a driving member for driving the limiting plate to move is arranged on the supporting plate.

As a preferred embodiment, the pushing part includes a support assembly, and two groups of support assemblies are symmetrically arranged on the fixed plate front and back, and each group of support assemblies is composed of two limit rods symmetrically arranged front and back about the corresponding welding assembly. The limit rods of the same group slide through the fixed plate and are jointly installed with a No. 1 support plate. The welding assembly movably penetrates the corresponding No. 1 support plate, and a No. 1 compression spring is installed between the No. 1 support plate and the fixed plate. Two connecting rods diagonally distributed are rotatably installed on the left and right ends of the No. 1 support plate through a torsion spring rod. The two connecting rods are combined into an X-shaped structure, and rollers are installed on the opposite surfaces of the lower parts of the two connecting rods.

As a preferred embodiment, the pressing part includes a top plate, and the upper ends of the two vertical sections of the limiting plate are commonly installed with the top plate, and guide rods are symmetrically and slidably installed on the top plate. The lower ends of the symmetrical guide rods pass through the corresponding top plates and are commonly installed with sliders. A lower pressing plate is arranged under the top plate, and a T-shaped groove is opened at the upper end of the lower pressing plate. The slider is slidably installed in the corresponding T-shaped groove. A reset spring is installed between the upper end of the slider and the top plate, and a reset member is arranged on the lower pressing plate.

As a preferred embodiment, the reset member includes a stop block, and the upper end of the lower pressure plate is symmetrically equipped with a stop block, the stop block is in a right-angled trapezoidal structure, a baffle is fixedly installed between the stop blocks, an axle rod is fixedly installed on the baffle, the axle rod slides through the corresponding slider, and a No. 2 compression spring is installed between the slider and the corresponding baffle.

As a preferred embodiment, the driving member includes a No. 1 rack, and a side of the slide corresponding to the limit plate located on the rear side of the two sets of limit assemblies located on the same support plate is jointly installed with a No. 1 rack, and a side of the slide corresponding to the limit plate located on the front side of the two sets of limit assemblies located on the same support plate is jointly installed with a No. 2 rack, and the No. 1 rack and the No. 2 rack are both slidably installed at the lower end of the corresponding support plate, and a spur gear is meshed between the No. 1 rack and the No. 2 rack on the same support plate, and the spur gear is rotatably installed on the corresponding support plate through a shaft column, and an actuator component for pushing the No. 1 rack to slide is arranged on the bottom plate.

As a preferred solution, the fixing mechanism includes a No. 1 positioning plate, two No. 1 positioning plates are symmetrically installed on the base plate, and rectangular holes penetrating the base plate are symmetrically opened between the two No. 1 positioning plates. The No. 1 positioning plate is an inverted L-shaped structure, and a rotary cylinder corresponding to the No. 1 positioning plate is fixedly installed at the lower end of the base plate. The telescopic section of the rotary cylinder movably penetrates the base plate and is fixedly installed with an extrusion plate, and a positioning portion for positioning the cover plate is provided between the two No. 1 positioning plates.

As a preferred embodiment, the positioning portion includes a No. 2 support plate, and a No. 2 support plate is arranged above the base plate, which is symmetrical about the No. 2 cylinder. Two left-right symmetrical receiving plates are installed on the upper end of the No. 2 support plate, and a suction plate is fixedly installed on the upper end of the receiving plate. A No. 2 positioning plate is fixedly installed on the upper rear of the opposite ends of the two suction plates, and the No. 2 positioning plate is in an inverted L-shaped structure. Support rods are installed at the lower ends of the front-to-back symmetrical No. 2 support plates, and a No. 2 connecting plate is installed after the lower ends of the support rods slide through the base plate, and a No. 3 cylinder is installed at the lower end of the support plate, and the telescopic end of the No. 3 cylinder slides through the support plate and is fixedly connected to the No. 2 connecting plate.

As a preferred embodiment, the pushing part includes a T-shaped rod, and the fixed plate is equipped with a T-shaped rod that is symmetrical about the front and rear of the welding assembly. The vertical section of the T-shaped rod slides through the corresponding fixed plate and a pushing plate is installed thereafter. The pushing plate abuts against the corresponding two guide rods, and a tension spring is installed between the lower end of the horizontal section of the T-shaped rod and the corresponding fixed plate.

As a preferred solution, the actuator assembly includes a No. 4 cylinder, which is installed on the base plate, and a push plate is installed at the telescopic end of the No. 4 cylinder, which abuts against the rear end of the No. 1 rack. A support is installed at the lower end of the support plate and in front of the No. 1 rack, and a No. 3 compression spring is installed between the support and the No. 1 rack.

The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The shaping mechanism provided in the present invention limits and aligns the pole ear through the limiting part to avoid the displacement of the pole ear, and then squeezes and tensions the pole ear through the pressing part to improve the fit between the pole ear and the pole piece, thereby improving the quality of welding between the pole ear and the pole piece.

2. The limiting part provided in the present invention pushes the No. 1 rack to move through the No. 4 cylinder via the push plate, and the No. 1 rack drives the corresponding No. 2 rack to move in the opposite direction through the corresponding spur gear, so that the two limiting plates in the same group are close to the corresponding pole ears to push, align and limit the pole ears.

3. When the welding mechanism provided in the present invention moves downward, the pushing part first drives the lower pressing part to move downward to squeeze the pole ear, so that the pole ear and the pole piece are fitted. Then, the pushing part pushes the lower pressing plate to keep squeezing the pole ear while moving horizontally to tighten and flatten the pole ear, thereby improving the fit between the pole ear and the pole piece, thereby improving the quality of welding between the pole ear and the pole piece.

Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a lithium battery during welding processing in the present application.

FIG. 2 is a schematic structural diagram of the shaping mechanism of the present application.

FIG. 3 is a schematic structural diagram of the positioning portion of the present application.

FIG. 4 is a schematic structural diagram of the welding mechanism of the present application.

FIG. 5 is an enlarged view of the structure at point A in FIG. 4 .

FIG. 6 is an enlarged view of the structure at point B in FIG. 5 .

FIG. 7 is a schematic diagram of the structure of the driving member of the present application.

Figure numerals: 10, equipment frame; 11, bottom plate; 2, shaping mechanism; 21, support plate; 22, push-pull rod; 23, support plate; 24, No. 1 connecting plate; 25, No. 1 cylinder; 26, limit part; 260, limit plate; 261, rectangular groove; 262, slide plate; 5, driving member; 50, No. 1 rack; 51, No. 2 rack; 52, spur gear; 53, No. 4 cylinder; 54, push plate; 55, No. 3 compression spring; 27, lower pressure part; 270, top plate; 271, guide rod; 272, slider; 273, lower pressure plate; 274, reset spring; 6, reset member; 60, stop block; 61, baffle; 62, No. 2 compression spring; 3 , welding mechanism; 30, No. 2 cylinder; 31, connecting plate; 32, fixing plate; 33, welding assembly; 34, pushing part; 340, T-bar; 341, pushing plate; 342, tension spring; 35, pushing part; 350, limiting rod; 351, No. 1 support plate; 352, No. 1 compression spring; 353, connecting rod; 354, roller; 4, fixing mechanism; 40, No. 1 positioning plate; 41, rotary cylinder; 42, extrusion plate; 44, rectangular hole; 43, positioning part; 430, No. 2 support plate; 431, receiving plate; 432, suction plate; 433, No. 2 positioning plate; 434, support rod; 435, No. 2 connecting plate; 436, No. 3 cylinder.

DETAILED DESCRIPTION

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

As shown in Figure 1, an automated welding robot includes an equipment frame 10; a base plate 11 is installed on the equipment frame 10, and a fixing mechanism 4 for fixing a battery pack and a cover plate is symmetrically arranged at the upper end of the base plate 11, and a welding mechanism 3 and a shaping mechanism 2 are arranged between the symmetrical fixing mechanisms 4, and the welding mechanism 3 is located above the shaping mechanism 2.

As shown in Figures 1, 2 and 4, the shaping mechanism 2 includes a support plate 21, the lower end of the base plate 11 is installed with the support plate 21, and two groups of push-pull components are arranged on the support plate 21, each group of push-pull components is composed of two push-pull rods 22 that are symmetrical front and back, and the upper ends of the two push-pull rods 22 in the same group slide through the rectangular holes 44 and are jointly installed with a supporting plate 23, and the lower ends of the four push-pull rods 22 slide through the support plate 21 and are jointly installed with a No. 1 connecting plate 24, and a No. 1 cylinder 25 is fixedly installed at the lower end of the base plate 11, and the telescopic end of the No. 1 cylinder 25 is fixedly connected to the No. 1 connecting plate 24.

As shown in FIG. 4 and FIG. 5 , a limiting portion 26 for limiting the displacement of the tab is disposed at the upper end of the supporting plate 23 , and a pressing portion 27 for pressing the tab downward to fit the tab with the pole piece on the battery pack is disposed on the limiting portion 26 .

As shown in Figures 1, 4, 5 and 7, the welding mechanism 3 includes a No. 2 cylinder 30, and the No. 2 cylinder 30 is installed on the upper end of the base plate 11. The telescopic end of the No. 2 cylinder 30 is installed with a connecting plate 31, and the lower end of the connecting plate 31 is symmetrically installed with two fixed plates 32. The fixed plate 32 is provided with a welding assembly 33 corresponding to the limiting portion 26 one by one. The welding assembly 33 is an existing ultrasonic welding assembly. The fixed plate 32 is provided with a pushing portion 34 for pushing the pressing portion 27 to vertically press the pole ear downward, and the fixed plate 32 is also provided with a pushing portion 35 for pushing the pressing portion 27 to move horizontally to tension the pole ear.

As shown in Figures 1 and 2, the fixing mechanism 4 includes a No. 1 positioning plate 40, and two No. 1 positioning plates 40 are symmetrically installed on the bottom plate 11. A rectangular hole 44 that penetrates the bottom plate 11 is symmetrically opened between the two No. 1 positioning plates 40. The No. 1 positioning plate 40 is an inverted L-shaped structure. A rotary cylinder 41 corresponding to the No. 1 positioning plate 40 is fixedly installed at the lower end of the bottom plate 11. The telescopic section of the rotary cylinder 41 movably penetrates the bottom plate 11 and is fixedly installed with an extrusion plate 42. A positioning portion 43 for positioning the cover plate is provided between the two No. 1 positioning plates 40.

As shown in Figures 1, 2, 3 and 7, the positioning portion 43 includes a No. 2 support plate 430, and a No. 2 support plate 430 is arranged above the bottom plate 11, which is symmetrical about the No. 2 cylinder 30. Two left-right symmetrical receiving plates 431 are commonly installed on the upper end of the No. 2 support plate 430, and a suction plate 432 is fixedly installed on the upper end of the receiving plate 431. A No. 2 positioning plate 433 is fixedly installed on the upper rear of the opposite ends of the two suction plates 432, and the No. 2 positioning plate 433 is an inverted L-shaped structure. A support rod 434 is installed at the lower end of the front-to-back symmetrical No. 2 support plate 430, and a No. 2 connecting plate 435 is installed after the lower end of the support rod 434 slides through the bottom plate 11, and a No. 3 cylinder 436 is installed at the lower end of the support plate 21, and the telescopic end of the No. 3 cylinder 436 slides through the support plate 21 and is fixedly connected to the No. 2 connecting plate 435.

During the specific operation, the battery pack is manually placed on the bottom plate 11, and the battery pack is made to contact with the No. 1 positioning plate 40 to position the battery pack. Then, the rotary cylinder 41 first rotates the corresponding extrusion plate 42 ninety degrees to move it to the top of the corresponding battery pack. Then, the rotary cylinder 41 pulls the extrusion plate 42 downward to extrude and fix the corresponding battery pack. Then, the cover plate welded with the pole ear is placed on the receiving plate 431 which is higher than the pole piece on the battery pack in the initial state, and the cover plate is pushed to contact and fit with the corresponding No. 2 positioning plate 433 to position the cover plate. Then, the external air pump is connected to the suction plate 432 through the external pipeline, and the external pipeline is provided with a solenoid valve, which controls the suction plate 432 to adsorb and fix the cover plate. Afterwards, the external air pump is connected to the No. 3 cylinder 436 through the external No. 3 air pipe, and the external No. 3 air pipe is also provided with a solenoid valve, which controls the No. 3 cylinder 436 to pull the No. 2 connecting plate 435 and the fixed cover plate to move downward, so that the pole ear on the cover plate contacts the upper end surface of the pole piece on the battery pack to achieve pre-docking of the pole ear with the pole piece on the battery pack, and then the limiting part 26 and the pressing part 27 limit and align the pole ear, and the pressing part 27 presses down on the aligned pole ear to make the pole ear fit with the pole piece on the battery pack, and then the welding mechanism 3 moves downward, and pushes the pressing part 27 to maintain the pressing state and translate at the same time to tension and flatten the pole ear, and then the welding mechanism 3 welds the pole ear and the pole piece together by ultrasonic welding.

As shown in Figures 4, 5, 6 and 7, the limiting portion 26 includes a limiting component, and two groups of limiting components are symmetrically arranged on the supporting plate 23, each group of limiting components is composed of two limiting plates 260 symmetrically arranged in the front and back, and the limiting plates 260 are concave structures. Rectangular grooves 261 corresponding to the limiting plates 260 are opened on the supporting plate 23, and a slide plate 262 that slides through the corresponding rectangular groove 261 is fixedly installed at the lower end of the limiting plate 260, and a driving member 5 for driving the limiting plate 260 to move is provided on the supporting plate 23.

As shown in Figures 4, 6 and 7, the driving member 5 includes a No. 1 rack 50, and a slide plate 262 corresponding to the limit plate 260 located on the rear side of the two sets of limit assemblies located on the same support plate 23 is jointly installed with the No. 1 rack 50 on the side close to the No. 1 cylinder 25, and a slide plate 262 corresponding to the limit plate 260 located on the front side of the two sets of limit assemblies located on the same support plate 23 is jointly installed with a No. 2 rack 51 on the side away from the No. 1 cylinder 25. The No. 1 rack 50 and the No. 2 rack 51 are both slidably installed at the lower end of the corresponding support plate 23, and a spur gear 52 is meshed between the No. 1 rack 50 and the No. 2 rack 51 on the same support plate 23, and the spur gear 52 is rotatably installed on the corresponding support plate 23 through a shaft column, and an actuator component for pushing the No. 1 rack 50 to slide is provided on the bottom plate 11.

As shown in Figure 7, the actuator assembly includes a No. 4 cylinder 53, and the No. 4 cylinder 53 is installed on the base plate 11. A push plate 54 is installed at the telescopic end of the No. 4 cylinder 53, and the push plate 54 is in contact with the rear end of the No. 1 rack 50. A support is installed at the lower end of the support plate 23 and located on the front side of the No. 1 rack 50, and a No. 3 compression spring 55 is installed between the support and the No. 1 rack 50.

During specific operation, the external air pump is connected to the No. 1 cylinder 25 through the external No. 1 air pipe. An electromagnetic valve is installed on the external No. 1 air pipe. The No. 1 cylinder 25 is controlled by the electromagnetic valve to push the support plate 23 upward until the support plate 23 contacts the lower end of the battery pack's pole ear to support and align the battery pack's pole ear.

After the supporting plate 23 is moved into place, the external air pump is connected to the No. 4 cylinder 53 through the external No. 4 air pipe, and an electromagnetic valve is installed on the external No. 4 air pipe. The No. 4 cylinder 53 is controlled by the electromagnetic valve to pull the push plate 54 forward, and the push plate 54 pushes the No. 1 rack 50 to move forward and compresses the No. 3 compression spring 55. The No. 1 rack 50 drives the corresponding limit plate 260 to move toward the pole ear through the corresponding slide plate 262. At the same time, the No. 1 rack 50 drives the No. 2 rack 51 to move backward through the spur gear 52, and the No. 2 rack 51 drives the corresponding limit plate 260 to move toward the pole ear through the corresponding slide plate 262, so that the two limit plates 260 in the same group can move toward the pole ear at the same time to push, align and limit the pole ear.

The welding mechanism 3 moves downward, first squeezing the pole ear to fit with the pole piece on the battery pack through the lower pressing part 27, and tightening and flattening the pole ear, and then the welding mechanism 3 continues to move downward to weld the pole ear to the pole piece on the battery pack. After welding is completed, the welding mechanism 3 moves up and away from the pole ear, and the lower pressing part 27 releases the squeezing of the pole ear and resets it. The corresponding solenoid valve controls the No. 4 cylinder 53 to push the push plate 54 to move backward, and the push plate 54 is away from the No. 1 rack 50. The No. 1 rack 50 moves backward under the action of the No. 3 compression spring 55, and the No. 1 rack 50 drives the corresponding No. 2 rack 51 to move forward through the spur gear 52, thereby driving the corresponding limit plate 260 away from the pole ear. After that, the corresponding solenoid valve controls the No. 1 cylinder 25 to pull the supporting plate 23 downward away from the pole ear, and the fixing mechanism 4 releases the fixation of the battery pack and the cover plate so that the welded battery can be removed.

As shown in Figures 4, 5 and 6, the pressing portion 27 includes a top plate 270, and the upper ends of the two vertical sections of the limiting plate 260 are jointly installed with the top plate 270, and guide rods 271 are symmetrically and slidably installed on the top plate 270. The lower ends of the symmetrical guide rods 271 pass through the corresponding top plates 270 and are jointly installed with sliders 272. A lower pressing plate 273 is arranged below the top plate 270, and a T-shaped groove is opened at the upper end of the lower pressing plate 273. The slider 272 is slidably installed in the corresponding T-shaped groove. A return spring 274 is installed between the upper end of the slider 272 and the top plate 270, and a return member 6 is arranged on the lower pressing plate 273.

During specific operation, the external air pump is connected to the No. 2 cylinder 30 through the external No. 2 air pipe, and an electromagnetic valve is installed on the external No. 2 air pipe. The electromagnetic valve controls the No. 2 cylinder 30 to pull the connecting plate 31 downward, and the connecting plate 31 drives the two fixed plates 32 to move downward at the same time. The fixed plate 32 first squeezes the guide rod 271 downward through the pushing portion 34 and stretches the reset spring 274. The guide rod 271 pushes the lower pressure plate 273 through the slider 272 to press the pole ear downward so that the pole ear and the pole piece fit together. Then, as the fixed plate 32 moves downward, the pushing portion 35 and the reset member 6 will cooperate to push the two lower pressure plates 273 of the same group away from each other while maintaining the downward pressure on the pole ear to tighten the pole ear, until the lower pressure plate 273 moves to the edge position of the pole ear to vacate the welding position, and then as the fixed plate 32 moves downward, the welding assembly 33 will press against the pole ear to perform welding processing on the pole ear.

After welding is completed, the welding mechanism 3 is away from the pole lug, and at this time, the slider 272 drives the lower pressing plate 273 to move upward and away from the pole lug and reset under the action of the reset spring 274.

As shown in Figures 4, 5 and 6, the reset member 6 includes a stop block 60, and the stop blocks 60 are symmetrically installed on the upper end of the lower pressure plate 273. The stop blocks 60 are in a right-angled trapezoidal structure. Baffles 61 are fixedly installed between the stop blocks 60, and an axle rod is fixedly installed on the baffle plate 61. The axle rod slides through the corresponding slider 272, and a No. 2 compression spring 62 is installed between the slider 272 and the corresponding baffle plate 61.

As shown in Figures 4, 5 and 6, the pushing portion 35 includes a support assembly, and two groups of support assemblies are symmetrically arranged on the fixed plate 32. Each group of support assemblies is composed of two limit rods 350 that are symmetrical about the corresponding welding assembly 33. The limit rods 350 of the same group slide through the fixed plate 32 and are jointly installed with a No. 1 support plate 351. The welding assembly 33 movably penetrates the corresponding No. 1 support plate 351. A No. 1 compression spring 352 is installed between the No. 1 support plate 351 and the fixed plate 32. Two connecting rods 353 distributed diagonally are installed at the left and right ends of the No. 1 support plate 351 through a torsion spring rod. The two connecting rods 353 are combined into an X-shaped structure, and roller shafts 354 are installed on the opposite surfaces of the lower parts of the two connecting rods 353.

As shown in Figures 4, 5 and 6, the pushing portion 34 includes a T-shaped rod 340, and the fixed plate 32 is equipped with a T-shaped rod 340 that is symmetrical front and back about the welding assembly 33. The vertical section of the T-shaped rod 340 slides through the corresponding fixed plate 32 and is then equipped with a pushing plate 341. The pushing plate 341 abuts against the corresponding two guide rods 271, and a tension spring 342 is installed between the lower end of the horizontal section of the T-shaped rod 340 and the corresponding fixed plate 32.

When the fixed plate 32 moves downward, the push plate 341 is first driven to contact the guide rod 271, and the guide rod 271 is pushed downward, so that the lower pressure plate 273 squeezes the pole ear. While the lower pressure plate 273 squeezes the pole ear, the push plate 341 contacts the corresponding top plate 270 and cannot move further downward. At this time, the fixed plate 32 continues to move downward, the push plate 341 remains stationary, and the tension spring 342 is stretched. Then the roller shaft 354 contacts the stop block 60. As the fixed plate 32 moves downward, the roller shaft 354 will push the stop block 60 to move to the side away from the middle of the pole ear and twist the torsion spring rod, and the stop block 60 pushes the corresponding lower pressure plate 27 3 keeps pressing down on the pole ear while moving horizontally. When the lower pressing plate 273 moves to the edge of the pole ear, the baffle 61 contacts the corresponding slider 272 to prevent the lower pressing plate 273 from moving further. Then the fixing plate 32 continues to move downward to compress the No. 1 compression spring 352, while the lower pressing plate 273 remains stationary. Then the welding assembly 33 fits with the pole ear and presses the pole ear downward to weld the pole ear to the pole piece by ultrasonic welding. After the welding is completed, the welding mechanism 3, the pressing portion 27, and the limiting portion 26 are all away from the pole ear for reset, and the fixing mechanism 4 releases the fixation of the battery pack and the cover plate. Then the above operation is repeated to continue the welding process.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An automated welding robot comprising an equipment rack (10); the method is characterized in that: the device frame (10) is provided with a bottom plate (11), the upper end of the bottom plate (11) is symmetrically provided with fixing mechanisms (4) for fixing the battery pack and the cover plate, a welding mechanism (3) and a shaping mechanism (2) are arranged between the fixing mechanisms (4) which are symmetrically arranged, and the welding mechanism (3) is positioned above the shaping mechanism (2); wherein:

The shaping mechanism (2) comprises a supporting plate (21), the lower end of the bottom plate (11) is provided with the supporting plate (21), two groups of push-pull assemblies which are bilaterally symmetrical are arranged on the supporting plate (21), each group of push-pull assemblies consists of two push-pull rods (22) which are bilaterally symmetrical, the upper ends of the two push-pull rods (22) in the same group are jointly provided with a supporting plate (23) after penetrating through rectangular holes (44) in a sliding manner, the lower ends of the four push-pull rods (22) are jointly provided with a first connecting plate (24) after penetrating through the supporting plate (21) in a sliding manner, the lower end of the bottom plate (11) is fixedly provided with a first air cylinder (25), and the telescopic end of the first air cylinder (25) is fixedly connected with the first connecting plate (24);

The upper end of the supporting plate (23) is provided with a limiting part (26) for limiting the deflection of the lug, and the limiting part (26) is provided with a pressing part (27) for pressing the lug to be attached to a pole piece on the battery pack;

The welding mechanism (3) comprises a second air cylinder (30), the second air cylinder (30) is arranged at the upper end of the bottom plate (11), the connecting plate (31) is arranged at the telescopic end of the second air cylinder (30), two fixing plates (32) are symmetrically arranged at the lower end of the connecting plate (31), welding assemblies (33) corresponding to the limiting parts (26) one by one are arranged on the fixing plates (32), pushing parts (34) for pushing the pressing parts (27) to vertically press the lugs are arranged on the fixing plates (32), and pushing parts (35) for pushing the pressing parts (27) to horizontally move to tension the lugs are further arranged on the fixing plates (32).

2. An automated welding robot as recited in claim 1, wherein: limiting part (26) include spacing subassembly, carrier plate (23) on the fore-and-aft symmetry be provided with two sets of spacing subassemblies, every spacing subassembly of group comprises two limiting plates (260) of fore-and-aft symmetry, limiting plate (260) are concave structure, offer rectangular channel (261) with limiting plate (260) one-to-one on carrier plate (23), limiting plate (260) lower extreme fixed has slide board (262) that run through corresponding rectangular channel (261), be provided with on carrier plate (23) and be used for driving piece (5) that limiting plate (260) removed.

3. An automated welding robot as recited in claim 1, wherein: the pushing part (35) comprises supporting components, two groups of supporting components are symmetrically arranged on the fixed plate (32) front and back, each group of supporting components consists of two limiting rods (350) which are symmetrical front and back relative to the corresponding welding component (33), a first support plate (351) is jointly installed behind the fixed plate (32) in a sliding mode through the same group of limiting rods (350), a first pressure spring (352) is installed between the first support plate (351) and the fixed plate (32) in a movable mode through the corresponding first support plate (33), two connecting rods (353) which are diagonally distributed are installed at the left end and the right end of the first support plate (351) in a rotating mode through torsion spring rods, the two connecting rods (353) are combined to form an X-shaped structure, and roller shafts (354) are installed on opposite faces of the lower portions of the two connecting rods (353).

4. An automated welding robot as recited in claim 2, wherein: the pushing part (27) comprises a top plate (270), the top plates (270) are jointly installed at the upper ends of two vertical sections of the limiting plate (260), guide rods (271) are installed on the top plates (270) in a bilateral symmetry sliding mode, sliding blocks (272) are jointly installed behind the corresponding top plates (270) in a penetrating mode at the lower ends of the bilateral symmetry guide rods (271), a lower pressing plate (273) is arranged below the top plates (270), T-shaped sliding grooves are formed in the upper ends of the lower pressing plates (273), the sliding blocks (272) are slidably installed in the corresponding T-shaped sliding grooves, return springs (274) are installed between the upper ends of the sliding blocks (272) and the top plates (270), and reset pieces (6) are arranged on the lower pressing plates (273).

5. An automated welding robot as recited in claim 4, wherein: the reset piece (6) comprises a blocking block (60), the blocking block (60) is symmetrically installed at the left and right of the upper end of the lower pressing plate (273), the blocking block (60) is of a right trapezoid structure, a baffle (61) is fixedly installed between the blocking blocks (60), a shaft rod is fixedly installed on the baffle (61), the shaft rod slides to penetrate through a corresponding sliding block (272), and a second pressure spring (62) is installed between the sliding block (272) and the corresponding baffle (61).

6. An automated welding robot as recited in claim 2, wherein: the driving piece (5) comprises a first rack (50), wherein a first rack (50) is jointly installed on one side, close to a first cylinder (25), of two groups of limiting components on the same supporting plate (23) corresponding to a limiting plate (260), a second rack (51) is jointly installed on one side, far away from the first cylinder (25), of the corresponding sliding plate (262) of the limiting plate (260) on the front side of the two groups of limiting components on the same supporting plate (23), the first rack (50) and the second rack (51) are both slidably installed at the lower end of the corresponding supporting plate (23), a spur gear (52) is meshed between the first rack (50) and the second rack (51) on the same supporting plate (23), the spur gear (52) is rotatably installed on the corresponding supporting plate (23) through a shaft column, and an execution component for pushing the first rack (50) to slide is arranged on the bottom plate (11).

7. An automated welding robot as recited in claim 1, wherein: the fixing mechanism (4) comprises a first positioning plate (40), two first positioning plates (40) are symmetrically arranged on the bottom plate (11) in a left-right mode, rectangular holes (44) penetrating through the bottom plate (11) are formed between the two first positioning plates (40) in a left-right mode, the first positioning plates (40) are of inverted-L-shaped structures, rotary air cylinders (41) corresponding to the first positioning plates (40) one by one are fixedly arranged at the lower ends of the bottom plate (11), extrusion plates (42) are fixedly arranged after telescopic sections of the rotary air cylinders (41) movably penetrate through the bottom plate (11), and positioning portions (43) for positioning the cover plate are arranged between the two first positioning plates (40).

8. An automated welding robot as recited in claim 7, wherein: the utility model provides a locating part (43) include No. two extension boards (430), the top of bottom plate (11) is provided with about No. two extension boards (430) of No. two cylinder (30) fore-and-aft symmetry, two bilateral symmetry's accepted board (431) are installed jointly to the upper end of No. two extension boards (430), the upper end fixed mounting who accepts board (431) has suction plate (432), the rear upper side fixed mounting of the opposite ends of two suction plates (432) has No. two locating plate (433), and No. two locating plate (433) are the type structure of falling L, branch (434) are all installed to No. two extension boards (430) lower extreme of fore-and-aft symmetry, install No. two and link board (435) behind branch (434) lower extreme slip run through bottom plate (11), no. three cylinder (436) are installed to the lower extreme of backup pad (21), the flexible end slip of No. three cylinder (436) runs through backup pad (21) back with No. two and link board (435) fixed connection.

9. An automated welding robot as recited in claim 4, wherein: the pushing part (34) comprises a T-shaped rod (340), the T-shaped rod (340) which is symmetrical around the welding assembly (33) is arranged on the fixed plate (32), the pushing plate (341) is arranged behind the corresponding fixed plate (32) in a sliding way, the pushing plate (341) is in contact with the corresponding two guide rods (271), and a tension spring (342) is arranged between the lower end of the horizontal section of the T-shaped rod (340) and the corresponding fixed plate (32).

10. An automated welding robot as recited in claim 6, wherein: the execution assembly comprises a fourth air cylinder (53), the fourth air cylinder (53) is arranged on the bottom plate (11), a push plate (54) is arranged at the telescopic end of the fourth air cylinder (53), the push plate (54) is in conflict with the rear end of a first rack (50), a support is arranged at the lower end of the support plate (23) and positioned at the front side of the first rack (50), and a third pressure spring (55) is arranged between the support and the first rack (50).