Welding device

Abstract

The utility model relates to the field of cathode current collector welding, in particular to a turret type cathode current collector welding device, which is characterized in that a transmission mechanism has a rotation action of autorotation, and a steel shell attached to the circumferential surface of the transmission mechanism has a circular movement track under the rotation action of the transmission mechanism; the path switching mechanism is used for connecting the steel shell into the transmission mechanism from the supply mechanism, a jacking assembly and a cam are further arranged in the path switching mechanism, a rod part, doing lifting motion, in the jacking assembly is provided with a top face for supporting the steel shell to move, the bottom of the rod part is located on a concave-convex structure of the cam, and when the cam rotates, the steel shell is driven to move. Through alternate execution of the concave-convex structures, the rod part does lifting motion, and the steel shell is ejected into a working area of the welding mechanism; according to the utility model, the transmission mechanism for guiding the steel shell to do annular motion is adopted, and the circular motion path replaces the traditional use of a material pushing cylinder, so that the space redundancy required by the use environment is saved, and the space around the welding mechanism can be fully utilized.

Description

Technical Field

[0001] The utility model relates to the field of negative electrode current collector welding, in particular to a welding device. Background Art

[0002] The production process of power batteries includes the process of welding the negative electrode collector to the steel shell.

[0003] The equipment for implementing the above process consists of two parts: a transport steel shell and a welding steel shell. The conventional transport part provides a linear motion path for the steel shell, introducing the steel shell into the welding equipment or leading the steel shell out from the welding equipment.

[0004] However, in the guidance method of the linear motion path, the push cylinder is responsible for the steering of the steel shell. Therefore, the use environment also requires spatial redundancy to ensure that the stroke of the push cylinder will not be interfered with by the environment. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a welding device that does not require space redundancy and is not affected by the use environment.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a welding device, comprising a welding part and a transport part, characterized in that the transport part comprises a transmission mechanism and a path switching mechanism, the transmission mechanism has a self-rotating rotation action, under the rotational motion of the transmission mechanism, the steel shell attached to the peripheral surface of the transmission mechanism has a circular motion trajectory, the path switching mechanism connects the steel shell from the supply mechanism to the transmission mechanism, and the supply mechanism provides a linear motion path for the steel shell, wherein a lifting assembly and a cam are also provided in the path switching mechanism, the rod part of the lifting assembly that performs a lifting motion has a top surface that supports the movement of the steel shell, and the bottom of the rod part is located on the concave and convex structure of the cam, and when the cam rotates, the concave and convex structures are alternately executed to make the rod part perform a lifting motion, thereby ejecting the steel shell into the working area of the welding mechanism.

[0007] Furthermore, the transmission mechanism includes a supporting structure and a first rotating disk. The supporting structure is located within the inner annular surface of the first rotating disk. The welding mechanism is installed on a supporting platform extending from the top of the supporting structure. The steel shell constrained on the first rotating disk follows the first rotating disk in a circular motion trajectory.

[0008] Furthermore, the restraint is that a plurality of positioning mechanisms are provided on the first rotating disk, and the steel shell is positioned in a plurality of positioning grooves at the periphery of the first rotating disk through the positioning mechanisms.

[0009] Furthermore, the positioning mechanism includes a base body, a second magnet is provided on the side of the base body, and the steel shell is adsorbed by the second magnet and fixed in the positioning groove of the first rotating disk.

[0010] Furthermore, a plurality of rubber-coated bearings are provided on the seat body, which are arranged laterally on the upper and lower end faces of the seat body, and their guide surfaces are located outside the seat body. Through the adsorption force of the second magnet, the steel shell finally rests on the rubber-coated bearings.

[0011] Furthermore, the bottom of the rod part is a hemispherical structure, and the concave-convex structure is formed by multiple recesses and protrusions on the cam surface arranged in a circular array, and the connection between the recesses and the protrusions is a slope, and the bottom of the rod part moves back and forth between the recesses and the protrusions through the slope.

[0012] Furthermore, the path switching mechanism also includes a supporting base plate, a feed turntable, a transmission shaft, a shell entry guide plate and a shell exit guide plate. The feed turntable is arranged horizontally on the surface of the supporting base plate and is driven to rotate by the transmission shaft. The circumferential surface of the feed turntable has a first magnet, which absorbs the steel shell so that the steel shell can move with the rotation of the feed turntable. The side surface of the supporting base plate is adapted to the shape of the first rotating disk, and the shell entry guide plate and the shell exit guide plate cooperate with each other on the top surface of the supporting base plate in a relationship of leaning against each other to form a connection for the transportation of the steel shell, by releasing the attraction of the feed turntable to the steel shell and guiding the steel shell into the positioning groove.

[0013] Furthermore, the lifting assembly also includes a linear bearing and a fixed plate. The fixed plate is arranged on the bottom surface of the supporting base plate and extends to the bottom of the positioning groove. The linear bearing is fixed on the fixed plate, and the rod part socketed by the linear bearing corresponds to the above-mentioned positioning groove. At the same time, the cam is socketed on the transmission shaft, and the rod part is constrained by the linear bearing. Combined with the concave and convex structure of the cam surface, the rotation of the cam will cause the rod part to rise and fall in an orderly manner.

[0014] Furthermore, the welding mechanism includes a welding head installed on a linear moving mechanism, and the linear moving mechanism is provided with a constraint structure for positioning the top of the steel shell. The constraint structure includes a pushing cylinder, a positioning sleeve, and a mounting plate. The mounting plate is connected to the piston rod of the pushing cylinder. The positioning sleeve is fixed to the mounting plate with its bottom facing the steel shell. The bottom surface of the positioning sleeve is a cavity that fits the outer periphery of the steel shell, and a through hole for welding is reserved on the positioning sleeve.

[0015] Beneficial effects of the utility model:

[0016] The utility model adopts a transmission mechanism for guiding the steel shell to make circular motion. The circular motion path replaces the traditional use of a push cylinder, thereby eliminating the space redundancy required for the use environment and making full use of the space around the welding mechanism. The part of ejecting the steel shell to realize welding is executed by the rod part in the path switching mechanism, and combined with the rotational movement of the cam, the steel shell is ejected into the working range of the welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the present utility model.

[0018] Figure 2 yes Figure 1 A magnified schematic diagram of .

[0019] Figure 3 It is a three-dimensional diagram of the path switching mechanism.

[0020] Figure 4 yes Figure 3 A three-dimensional image from a top-down perspective.

[0021] Figure 5 It is a three-dimensional diagram of the jacking assembly.

[0022] Figure 6 It is a three-dimensional diagram of the positioning mechanism.

[0023] Figure 7 It is a three-dimensional diagram of the feed turntable.

[0024] Figure 8 It is a three-dimensional diagram of the cam.

[0025] Figure 9 It is a schematic diagram of the assembled welding mechanism and the transmission mechanism.

[0026] Figure 10 It is a three-dimensional diagram of the welding mechanism.

[0027] Figure 11 yes Figure 10 Enlarged schematic diagram of point B.

[0028] Figure 12 It is a three-dimensional view of the positioning sleeve. DETAILED DESCRIPTION

[0029] like Figure 1-12 As shown, a welding device for welding anode current collector includes two parts, a welding part and a transport part. The transport part includes a transmission mechanism 1 and a path switching mechanism 2. The transmission mechanism 1 has a self-rotating rotation action. Under the rotational motion of the transmission mechanism 1, the steel shell 3 attached to the peripheral surface of the transmission mechanism 1 has a circular motion trajectory. The path switching mechanism 2 connects the steel shell 3 from the supply mechanism (not shown in the figure) to the transmission mechanism 1. The supply mechanism provides a linear motion path for the steel shell 3.

[0030] The welding part is a welding mechanism 4 arranged on the transmission mechanism 1. The transmission mechanism 1 includes a support structure 100 and a first rotating disk 10. The support structure 100 is located in the inner annular surface of the first rotating disk 10. The welding mechanism 4 is installed on the support platform 11 extending from the top of the support structure 100. The steel shell 3 constrained on the first rotating disk 10 follows the first rotating disk 10 in a circular motion trajectory.

[0031] The restraint is that a plurality of positioning mechanisms 5 are provided on the first rotating disk 10 , and the steel shell 3 is positioned in a plurality of positioning grooves 10 a on the periphery of the first rotating disk 10 through the positioning mechanisms 5 .

[0032] In the path switching mechanism 2, there are also provided a supporting base plate 20, a feed turntable 22, a transmission shaft 23, and a lifting assembly D. The feed turntable 22 is arranged horizontally on the surface of the supporting base plate 20 and is driven to rotate by the transmission shaft 23. The circumferential surface of the feed turntable 22 has a first magnet 24, which absorbs the steel shell 3 so that the steel shell 3 can move with the rotation of the feed turntable 22. The side surface of the supporting base plate 20 is adapted to the shape of the first rotating disk 10, and the shell entry guide plate 25 and the shell exit guide plate 26 are mutually matched on the top surface of the supporting base plate 20 in a relationship of leaning against each other to form a connection for the transportation of the steel shell 3, and the attraction of the feed turntable 22 to the steel shell 3 is released, and the steel shell 3 is guided into the positioning groove 10a.

[0033] The lifting assembly D includes a cam 21, a linear bearing 27, a push rod 28, and a fixed plate 29. The fixed plate 29 is arranged on the bottom surface of the support base plate 20 and extends to the bottom of the positioning groove 10a. The linear bearing 27 is fixed on the fixed plate 29. The push rod 28 sleeved by the linear bearing 27 corresponds to the above-mentioned positioning groove 10a. At the same time, the cam 21 is sleeved on the transmission shaft 23, and the concave and convex structure on its surface supports the push rod 28 for lifting and lowering activities. The push rod 28 is constrained by the linear bearing 27 and can only perform lifting and lowering movements. Combined with the concave and convex structure on the surface of the cam 21, the rotation of the cam 21 will cause the push rod 28 to lift and lower in an orderly manner, and by lifting the steel shell 3, the steel shell 3 can reach the preset position and be welded by the welding mechanism 4.

[0034] It can be seen from this that the first rotating disk 10 and the positioning mechanism 5 in the present invention realize the circular motion trajectory of the steel shell 3, bringing about the effect of reducing the volume. At the same time, it does not require redundancy in space for use, so the space utilization rate is greater.

[0035] In this embodiment, there are multiple positioning mechanisms 5, which include a base 51 and a second magnet 52. The second magnet 52 is provided on the side of the base 51, and the steel shell 3 is adsorbed by the second magnet 52 and fixed in the positioning groove 10a of the first rotating disk 10.

[0036] Furthermore, a plurality of rubber-coated bearings 53 are provided on the base body 51. The rubber-coated bearings 53 are arranged horizontally on the upper and lower end surfaces of the base body 51, and their guide surfaces 53a are located outside the base body 51. Through the adsorption force of the second magnet 52, the steel shell 3 is finally against the rubber-coated bearings 53. The attraction provided by the second magnet 52 will enable the steel shell 3 to adjust its position by moving. The rubber-coated bearings 53 have a buffering effect. The base body 51 is made of rigid material, which avoids the situation of adjusting its own position on the base body 51, and the steel shell 3 is also free from friction with the base body 51 and causing problems such as scratches.

[0037] The bottom of the push rod 28 is a hemispherical structure 28a, and the concave-convex structure is formed by multiple recesses 21a and protrusions 21b on the surface of the cam 21 arranged in a circular array, and the connection between the recess 21a and the protrusion 21b is a slope 21c. The bottom 2 of the push rod 28 moves back and forth between the recess 21a and the protrusion 21b through the slope 21c.

[0038] In this embodiment, the utility model has a double-station structure, and the path switching mechanism 2 is provided with a group, which is used to guide the steel shell 3 into the first rotating disk 10 and guide the steel shell 3 out of the first rotating disk 10. Similarly, the welding mechanism 4 is also provided with a group.

[0039] The operating principle of this utility model is as follows:

[0040] S1, the steel shell 3 in the supply mechanism is transferred to the positioning groove 10a of the first rotating disk 10 through the first path switching mechanism 2a;

[0041] S2, the first rotating disk 10 rotates to ensure that all the positioning grooves 10a have steel shells 3;

[0042] S3, the welding process is started, the first welding mechanism 4a welds the steel shell 3 newly introduced by the first path switching mechanism 2a, and at the same time, the second welding mechanism 4b welds the steel shell 3 pre-fixed in the positioning groove 10a.

[0043] For example, there are 10 positioning grooves 10a, and the steel shells 3 in these 10 positioning grooves 10a are all welded by the second welding mechanism 4b. After the second welding mechanism 4b welds each steel shell 3, the steel shell 3 will be sent out by the second path switching mechanism 2b. At this time, the vacant positioning grooves 10a will be introduced by the first path switching mechanism 2a to introduce the steel shell 3 to be welded, and the newly introduced steel shell 3 will be welded by the first welding mechanism 4a.

[0044] In the embodiment, a support frame 8 is provided on the support platform, and the welding mechanism is suspended on the transport portion through the support frame 8 .

[0045] The welding mechanism 4 is a welding head 40 mounted on a linear motion mechanism 41 . The welding head 40 and the linear motion mechanism 41 are prior arts, and therefore, they will not be described in detail.

[0046] It should be noted that the welding mechanism 4 also includes a constraint structure for positioning the top of the steel shell 3, which is to prevent the steel shell 3 from shaking during welding.

[0047] The linear motion mechanism 41 has two movable sliders for output, one of which is used to assist the longitudinal movement of the welding head, and the other is used to assist the longitudinal movement of the restraining mechanism;

[0048] The constraint mechanism includes a pushing cylinder 7, a positioning sleeve 42, and a mounting plate 43. The pushing cylinder 7 is fixed on the support frame 8, and the mounting plate 43 is installed on the movable slider 6. The mounting plate 43 is pushed by the pushing cylinder 7 to perform lifting and lowering movements. The bottom surface of the positioning sleeve 42 is a cavity 42a that adapts to the outer periphery of the steel shell 3 and is connected to the mounting plate. During welding, the positioning sleeve 42 is first sleeved on the top of the steel shell 3, and the welding head 40 passes through the through hole 44 reserved on the cavity 42a to weld the negative electrode current collector on the steel shell 3.

[0049] It should also be noted that the first rotating disk 10, the feed turntable 22, and the discharge turntable (the definition of the feed turntable 22 and the discharge turntable is determined based on the use of the path switching mechanism 2) are all driven by the same driving mechanism, and through various distributions of the gear sets, they are able to rotate with each other.

[0050] The above embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A welding device comprising a welding part and a transport part, characterized in that: The transport part includes a transmission mechanism and a path switching mechanism. The transmission mechanism has a self-rotating rotational motion. Under the rotational motion of the transmission mechanism, the steel shell attached to the peripheral surface of the transmission mechanism has a circular motion trajectory. The path switching mechanism connects the steel shell from the supply mechanism to the transmission mechanism. The supply mechanism provides a linear motion path for the steel shell. A lifting assembly and a cam are also provided in the path switching mechanism. The rod part of the lifting assembly that performs a lifting motion has a top surface that supports the movement of the steel shell. The bottom of the rod part is located on the concave and convex structure of the cam. When the cam rotates, the concave and convex structures are alternately executed to make the rod part perform a lifting motion, thereby ejecting the steel shell into the working area of the welding mechanism.

2. A welding device according to claim 1, characterized in that: The transmission mechanism includes a supporting structure and a first rotating disk. The supporting structure is located within the inner ring surface of the first rotating disk. The welding mechanism is installed on a supporting platform extending from the top of the supporting structure. The steel shell bound to the first rotating disk follows the first rotating disk in a circular motion trajectory.

3. A welding device according to claim 2, characterized in that: The restraint is that a plurality of positioning mechanisms are provided on the first rotating disk, and the steel shell is positioned in a plurality of positioning grooves on the circumference of the first rotating disk through the positioning mechanisms.

4. A welding device according to claim 3, characterized in that: The positioning mechanism includes a base body. A second magnet is arranged on the side of the base body. The steel shell is adsorbed by the second magnet and fixed in the positioning groove of the first rotating disk.

5. A welding device according to claim 4, characterized in that: The seat body is also provided with multiple rubber-coated bearings, which are arranged horizontally on the upper and lower end faces of the seat body, and their guide surfaces are located outside the seat body. Through the adsorption force of the second magnet, the steel shell finally rests on the rubber-coated bearings.

6. A welding device according to claim 1, characterized in that: The bottom of the rod part is a hemispherical structure, and the concave-convex structure is formed by multiple recesses and protrusions on the cam surface arranged in a circular array. The connection between the recesses and the protrusions is an inclined surface, and the bottom of the rod part moves back and forth between the recesses and the protrusions through the inclined surface.

7. A welding device according to claim 2, characterized in that: The path switching mechanism also includes a supporting base plate, a feed turntable, a transmission shaft, a shell entry guide plate and a shell exit guide plate. The feed turntable is arranged horizontally on the surface of the supporting base plate and is driven to rotate by the transmission shaft through it. The circumference of the feed turntable has a first magnet, which absorbs the steel shell so that the steel shell can move with the rotation of the feed turntable. The side surface of the supporting base plate is adapted to the shape of the first rotating disk, and the two are in a relationship of leaning against each other so that the shell entry guide plate and the shell exit guide plate cooperate with each other on the top surface of the supporting base plate to form a connection for the transportation of the steel shell, by releasing the attraction of the feed turntable to the steel shell and guiding the steel shell into the positioning groove.

8. A welding device according to claim 7, characterized in that: The lifting assembly also includes a linear bearing and a fixed plate. The fixed plate is arranged on the bottom surface of the supporting base plate and extends to the bottom of the positioning groove. The linear bearing is fixed on the fixed plate, and the rod part sleeved by the linear bearing corresponds to the above-mentioned positioning groove. At the same time, the cam is sleeved on the transmission shaft, and the rod part is constrained by the linear bearing. Combined with the concave and convex structure of the cam surface, the rotation of the cam will cause the rod part to rise and fall in an orderly manner.

9. A welding device according to claim 1, characterized in that: The welding mechanism includes a welding head installed on a linear moving mechanism, and the linear moving mechanism is provided with a constraint structure for positioning the top of the steel shell. The constraint structure includes a pushing cylinder, a positioning sleeve, and a mounting plate. The mounting plate is connected to the piston rod of the pushing cylinder. The positioning sleeve is fixed to the mounting plate with its bottom facing the steel shell. The bottom surface of the positioning sleeve is a cavity that adapts to the outer periphery of the steel shell, and a through hole for welding is reserved on the positioning sleeve.

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