阅读说明：本技术 一种电池端面极耳压合机 (Battery terminal surface utmost point ear pressfitting machine ) 是由 许炎 童焰 陈志勇 于 2020-06-29 设计创作，主要内容包括：本发明涉及一种电池端面极耳压合机,用于将钢片与电池外壳热压固定,包括机台、承托钢片与电池外壳的平移工作台、以及对料品进行压合的等高限距热合机构,所述等高限距热合机构包括与机台固定连接的下加热管、滑轨组件、以及通过滑轨组件与机台活动连接的上加热管,所述上加热管的移动方向垂直于所述平移工作台所在平面。本发明提供一种电池端面极耳压合机,利用端面为环状的加热管对钢片与电池外壳进行热压固定,并通过隔热柱来隔绝高温的加热管,避免加热管损坏其周围部件,保证压合机设备的稳定性。(The invention relates to a battery end face tab pressing machine which is used for fixing a steel sheet and a battery shell in a hot pressing mode and comprises a machine table, a translation workbench for supporting the steel sheet and the battery shell and an equal-height distance heat sealing mechanism for pressing materials, wherein the equal-height distance heat sealing mechanism comprises a lower heating pipe, a sliding rail assembly and an upper heating pipe, the lower heating pipe is fixedly connected with the machine table, the upper heating pipe is movably connected with the machine table through the sliding rail assembly, and the moving direction of the upper heating pipe is perpendicular to the plane of the translation workbench. The invention provides a battery end surface tab pressing machine, which utilizes a heating pipe with an annular end surface to carry out hot pressing fixation on a steel sheet and a battery shell, and isolates the high-temperature heating pipe through a heat insulation column, thereby avoiding the heating pipe from damaging surrounding parts and ensuring the stability of pressing machine equipment.)

1. The utility model provides a battery terminal surface utmost point ear pressfitting machine which characterized in that for being fixed with steel sheet and battery case hot pressing, including board (1), the translation workstation of bearing steel sheet and battery case and carry out the high limit distance heat seal mechanism of pressfitting to the material article, high limit distance heat seal mechanism includes lower heating pipe (2) with board (1) fixed connection, slide rail set spare and through slide rail set spare and board (1) swing joint's last heating pipe (3), the moving direction of going up heating pipe (3) is perpendicular to translation workstation place plane.

2. The battery end tab laminating machine according to claim 1, wherein the lower end surface of the upper heating pipe (3) is in contact with the battery shell for heating and downward force application and extrusion, the upper end surface of the lower heating pipe (2) is in contact with the steel sheet for heating and upward force application and extrusion so as to fix the battery shell and the steel sheet by hot pressing, the lower end surface of the upper heating pipe (3) is a circular ring, and the upper end surface of the lower heating pipe (2) is circular.

3. The battery end face tab laminating machine according to claim 1, wherein the translation workbench comprises a horizontal sliding rail (4), a horizontal sliding block (5) sliding on the horizontal sliding rail (4), a sliding rod (6) fixed on the horizontal sliding block (5), a spring (7) sleeved on the sliding rod (6) and a horizontal workbench (8), the horizontal workbench (8) can move up and down along the sliding rod (6), and a limiting fixing part (9) for preventing the horizontal workbench (8) from sliding out of the sliding rod (6) is arranged at the upper end part of the sliding rod (6).

4. The battery end face tab laminating machine according to claim 1, wherein the slide rail assembly comprises a vertical slide rail (10), a vertical slide block (11) sliding on the vertical slide rail (10), a horizontal plate (12) fixed on the vertical slide block (11), and a cylinder (13) pushing the horizontal plate (12) to move up and down, and the cylinder (13) is fixed on the fixing plate (14).

5. The battery end face tab laminating machine according to claim 4, wherein the transverse plate (12) is further connected with a stopper, the stopper comprises a limiting slide rod (15) connected with the transverse plate (12) and a micrometer (16) fixed at the tail end of the limiting slide rod (15), the limiting slide rod (15) penetrates through the fixing plate (14) and can slide relative to the fixing plate (14), and one end of the micrometer (16) abuts against the fixing plate (14) to limit the transverse plate (12).

6. The battery end face tab laminating machine according to claim 3, wherein a material supporting ring (17) for supporting the steel sheet and the battery case is arranged on the horizontal workbench, the material supporting ring (17) has a cylindrical hollow inner channel (18), a circular groove (19) for supporting the steel sheet is dug on the upper end face of the material supporting ring (17), and the center of the circular groove (19) is located on the axis of the hollow inner channel (18).

7. The battery end tab laminating machine according to claim 6, wherein a battery case covers the upper surface of the steel sheet in the circular groove (19), the outer diameter of the lower heating tube (2) is smaller than the diameter of the hollow inner channel (18), and the outer diameter of the upper heating tube (3) is larger than the diameter of the hollow inner channel (18).

8. The battery end tab laminating machine according to claim 1, wherein the upper heating tube (3) is connected with the sliding rail assembly through one or more heat insulation columns (20), the lower heating tube (2) is also connected with the machine table (1) through one or more heat insulation columns (20), the heat insulation columns (20) are made of stainless steel, and one or more heat dissipation grooves are formed in the heat insulation columns (20).

9. The battery end face tab laminating machine according to claim 8, wherein the heat insulation column (20) comprises a first connecting part (21), a heat dissipation part (22) and a second connecting part (23), wherein the first connecting part (21) is provided with threads, the second connecting part (23) is also provided with threads, and the threads on the first connecting part (21) are opposite to the threads on the second connecting part (23); the heat dissipation groove is provided in the heat dissipation portion (22).

10. The battery end face tab laminating machine according to claim 9, wherein the heat dissipation groove is of an axisymmetric structure and comprises a first half-moon groove (24), a circular hole (25) and a second half-moon groove (26), and the first half-moon groove (24) and the second half-moon groove (26) are symmetrically distributed on two sides of the circular hole (25); the radiating part (22) is provided with a plurality of groups of radiating grooves which are arranged on the radiating part (22) at equal intervals, the symmetrical axes of the two adjacent groups of radiating grooves are mutually vertical, and the radiating part (22) is cylindrical.

Technical Field

The invention relates to the field of battery production, in particular to a battery end face tab pressing machine.

Background

With the increasing popularity of electronic products, people have more and more demand for batteries. With the development of battery technology, batteries different from the conventional structure have been developed. For example, patent publication No. CN111029487A discloses a high energy density battery, which replaces the conventional tab connection exposed outside the battery with steel sheets on both end faces. Specifically, the upper end face and the lower end face of the battery are provided with circular hollow areas, and the steel sheet is partially exposed in the hollow areas. As a newly developed novel structure battery, there is no production equipment for the battery structure in the market at present, and particularly, there is no corresponding efficient and stable production equipment in the pressing operation of the battery shell and the steel sheet, so that improvement is urgently needed.

Disclosure of Invention

In view of the above, the invention provides a battery end tab pressing machine, which utilizes a heating pipe with an annular end surface to perform hot pressing fixation on a steel sheet and a battery shell, wherein the hot pressing operation is stable and efficient, and the high-temperature heating pipe is isolated by a heat insulation column, so that the heating pipe is prevented from damaging surrounding parts, and the stability of the pressing machine equipment is effectively ensured.

The purpose of the invention is realized by the following technical scheme:

a battery end face tab pressing machine is used for fixing a steel sheet and a battery shell in a hot pressing mode and comprises a machine table, a translation workbench for supporting the steel sheet and the battery shell, and an equal-height distance heat sealing mechanism for pressing materials, wherein the equal-height distance heat sealing mechanism comprises a lower heating pipe fixedly connected with the machine table, a sliding rail assembly and an upper heating pipe movably connected with the machine table through the sliding rail assembly, and the moving direction of the upper heating pipe is perpendicular to the plane of the translation workbench.

Preferably, the lower end surface of the upper heating pipe is in contact with the battery shell for heating and applies downward force for extrusion, and the upper end surface of the lower heating pipe is in contact with the steel sheet for heating and applies upward force for extrusion, so that the battery shell and the steel sheet are fixed in a hot-pressing mode.

Preferably, the lower end surface of the upper heating pipe is a circular ring, and the upper end surface of the lower heating pipe is circular.

Preferably, the translation workstation includes horizontal slide rail, the horizontal slide block of sliding sleeve on horizontal slide rail, fixes slide bar, the spring of suit on the slide bar and the horizontal workbench on horizontal slide block, the horizontal workbench can be followed the slide bar reciprocates, the slide bar upper end is provided with prevents the outer spacing fixed part of horizontal workbench roll-off slide bar.

Preferably, the slide rail assembly comprises a vertical slide rail, a vertical slide block, a transverse plate and a cylinder, wherein the slide block is sleeved on the vertical slide rail in a sliding mode, the transverse plate is fixed on the vertical slide block, the cylinder pushes the transverse plate to move up and down, and the cylinder is fixed on the fixing plate.

Preferably, the transverse plate is further connected with a limiter, the limiter comprises a limiting slide rod connected with the transverse plate and a micrometer fixed at the tail end of the limiting slide rod, the limiting slide rod penetrates through the fixed plate and can slide relative to the fixed plate, and one end of the micrometer abuts against the fixed plate to limit the transverse plate.

Preferably, a material supporting ring for supporting the steel sheet and the battery shell is arranged on the horizontal workbench, the material supporting ring is provided with a cylindrical hollow inner channel, a circular groove for supporting the steel sheet is dug in the upper end face of the material supporting ring, and the circle center of the circular groove is located on the axis of the hollow inner channel.

Preferably, the battery case covers the upper surface of the steel sheet in the circular groove.

Preferably, the outer diameter of the lower heating pipe is smaller than the diameter of the hollow inner channel, and the outer diameter of the upper heating pipe is larger than the diameter of the hollow inner channel.

Preferably, the upper heating pipe is connected with the sliding rail assembly through one or more heat insulation columns, the lower heating pipe is also connected with the machine table through one or more heat insulation columns, the heat insulation columns are made of stainless steel, and one or more heat dissipation grooves are formed in the heat insulation columns.

Preferably, the heat insulation column comprises a first connecting part, a heat dissipation part and a second connecting part, wherein the first connecting part is provided with threads, the second connecting part is also provided with threads, and the threads on the first connecting part and the threads on the second connecting part are opposite in direction; the heat dissipation groove is arranged at the heat dissipation part.

Preferably, the heat dissipation groove is of an axisymmetrical structure and comprises a first half-moon groove, a round hole and a second half-moon groove, and the first half-moon groove and the second half-moon groove are symmetrically distributed on two sides of the round hole; the radiating part is provided with a plurality of groups of radiating grooves which are arranged on the radiating part at equal intervals, the symmetrical shafts of the two adjacent groups of radiating grooves are mutually vertical, and the radiating part is cylindrical.

Compared with the prior art, the invention has the beneficial effects that:

the invention relates to a battery end surface lug pressing machine which is used for fixing a steel sheet and a battery shell in a hot pressing mode and fixing the steel sheet and the battery shell in the hot pressing mode by utilizing a heating pipe with an annular end surface. Meanwhile, the thickness of the steel sheet and the battery shell combination body formed by hot pressing is controlled within the design precision through the limiting action of the micrometer, and the quality of a battery product is guaranteed. In addition, the heat insulation column is used for isolating the high-temperature heating pipe, so that the heating pipe is prevented from damaging surrounding parts. The heat insulation column is made of stainless steel, and the firmness of connection between the heating pipe and surrounding parts is effectively guaranteed by the aid of excellent deformation resistance of the stainless steel. In order to further reduce the heat transfer of the heating pipe to the surrounding parts, the surface of the heat insulation column is hollowed, a plurality of groups of radiating grooves are dug, and the actual radiating area of the surface of the heat insulation column is increased by utilizing the additionally arranged radiating grooves, so that the heat transferred to the surrounding parts of the heating pipe is reduced, and the surrounding parts of the heating pipe are prevented from being affected by the high-temperature heating pipe.

Drawings

Fig. 1 is a structural view of a battery end-face tab laminating machine in an embodiment of the present invention.

FIG. 2 is a structural diagram of a high-pitch heat sealing mechanism according to an embodiment of the present invention.

FIG. 3 is a block diagram of a translation stage according to an embodiment of the present invention.

FIG. 4 is a schematic view of a material support ring according to an embodiment of the present invention.

FIG. 5 is a block diagram of an embodiment of the present invention.

FIG. 6 is a block diagram of an embodiment of the present invention.

FIG. 7 is a diagram illustrating the connection between the insulating column and the surrounding components according to an embodiment of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail below with reference to specific embodiments and the accompanying drawings.

Referring to fig. 1-7, an embodiment of the invention includes:

a battery end face tab pressing machine is used for fixing a steel sheet and a battery shell in a hot pressing mode and comprises a machine table 1, a translation workbench for supporting the steel sheet and the battery shell, and an equal-height distance heat sealing mechanism for pressing materials, wherein the equal-height distance heat sealing mechanism comprises a lower heating pipe 2 fixedly connected with the machine table 1, a sliding rail assembly and an upper heating pipe 3 movably connected with the machine table 1 through the sliding rail assembly, and the moving direction of the upper heating pipe 3 is perpendicular to the plane of the translation workbench.

The lower end surface of the upper heating pipe 3 is in contact with the battery shell for heating and applies downward force for extrusion, and the upper end surface of the lower heating pipe 2 is in contact with the steel sheet for heating and applies upward force for extrusion, so that the battery shell and the steel sheet are fixed in a hot-pressing mode. The lower end surface of the upper heating pipe 3 is a circular ring, and the upper end surface of the lower heating pipe 2 is circular.

The translation workstation includes horizontal slide rail 4, the horizontal sliding block 5 of sliding sleeve on horizontal slide rail 4, fixes slide bar 6 on horizontal sliding block 5, suit spring 7 and horizontal table 8 on slide bar 6, and horizontal table 8 can reciprocate along slide bar 6, and slide bar 6 upper end is provided with prevents horizontal table 8 roll-off slide bar 6 outer spacing fixed part 9. The slide rail assembly comprises a vertical slide rail 10, a vertical slide block 11 sliding on the vertical slide rail 10 in a sliding manner, a transverse plate 12 fixed on the vertical slide block 11, and a cylinder 13 pushing the transverse plate 12 to move up and down, wherein the cylinder 13 is fixed on a fixing plate 14.

The transverse plate 12 is further connected with a limiting device, the limiting device comprises a limiting slide rod 15 connected with the transverse plate 12 and a micrometer 16 fixed at the tail end of the limiting slide rod 15, the limiting slide rod 15 penetrates through the fixing plate 14 and can slide relative to the fixing plate 14, and one end of the micrometer 16 abuts against the fixing plate 14 to limit the transverse plate 12.

A material supporting ring 17 for supporting the steel sheet and the battery shell is arranged on the horizontal workbench, the material supporting ring 17 is provided with a cylindrical hollow inner channel 18, a circular groove 19 for supporting the steel sheet is dug in the upper end face of the material supporting ring 17, and the circle center of the circular groove 19 is located on the axis of the hollow inner channel 18. The material-holding ring 17 is made of peek. The battery housing covers the upper surface of the steel sheet in the circular recess 19.

The outer diameter of the lower heating tube 2 is smaller than the diameter of the hollow inner passage 18, and the outer diameter of the upper heating tube 3 is larger than the diameter of the hollow inner passage 18. Go up heating pipe 3 and be connected with sliding rail set spare through 4 thermal-insulated posts 20, lower heating pipe 2 also is connected with board 1 through 4 thermal-insulated posts 20, and thermal-insulated post 20 is used for isolated heating pipe from top to bottom to avoid the high temperature of heating pipe from top to bottom to damage its parts on every side, including being used for 4 thermal-insulated posts 20 of being connected heating pipe 3 with parts on every side, thermal-insulated post 20 is made by the stainless steel, is provided with 5 radiating grooves on the thermal-insulated post 20. The 4 heat-insulating columns are distributed in a rectangular array, one end of each heat-insulating column is connected with the transverse plate 12, and the other end of each heat-insulating column is connected with the heating pipe.

The heat insulating column 20 includes a first connecting portion 21, a heat dissipating portion 22, and a second connecting portion 23, wherein the first connecting portion 21 is provided with a screw thread, and the second connecting portion 23 is also provided with a screw thread. The heat dissipation grooves are arranged on the heat dissipation portion 22, are of an axisymmetric structure and comprise first half-moon grooves 24, round holes 25 and second half-moon grooves 26, and the first half-moon grooves 24 and the second half-moon grooves 26 are symmetrically distributed on two sides of the round holes 25. The last distribution of radiating part 22 has 5 groups of radiating grooves, and 5 groups of radiating grooves equidistance are arranged on radiating part 22, and the symmetry axis mutually perpendicular of adjacent two sets of radiating grooves. The heat dissipation portion 22 has a cylindrical shape, and the screw thread of the first connection portion 21 is opposite to the screw thread of the second connection portion 23.

The working principle is as follows, the upper heating pipe and the lower heating pipe are electrified to be heated, the steel sheet is placed in a circular groove in the material product bearing ring, then a battery shell is placed on the surface of the steel sheet, a hollowed circular open window is dug in the central area of the battery shell, the structure of the hollow circular open window is the structure recorded in the patent document with the publication number of CN111029487A, then a horizontal workbench is pushed, the axes of the bearing ring, the upper heating pipe and the lower heating pipe are on the same straight line, the cylinder pushes the upper heating pipe to move downwards, the circular ring on the end face of the upper heating pipe is contacted with the battery shell, the inner diameter of the circular ring on the end face of the upper heating pipe is larger than the diameter of the circular open window of the battery shell, the outer diameter of the circular ring on the end face of the upper heating pipe is smaller than the; when the micrometer is inconsistent with the fixed plate, the upper heating pipe stops pressing down, and the distance between the upper heating pipe and the lower heating pipe can be accurately controlled by the micrometer. After the hot pressing is finished, the cylinder returns, the upper heating pipe moves upwards, the horizontal workbench moves upwards under the action of the spring, then the horizontal workbench returns along the horizontal sliding rail, the combination of the steel sheet and the battery shell which are subjected to the hot pressing is taken down, and the next set of steel sheet and the battery shell are produced in a circulating reciprocating mode in the same steps as the mode.

When the heating pipe works, the temperature of the heating pipe reaches 170-180 ℃, external strong heat transfer is generated at high temperature, and surrounding parts are easily damaged by high heat. In order to avoid the heating pipe from damaging surrounding parts, the invention adds the heat insulation column between the heating pipe and the surrounding parts, the heating pipe and the surrounding parts are connected through the heat insulation column, the heat insulation column is made of stainless steel, and the heat insulation effect of the heating pipe is realized by utilizing the characteristic of poor heat conduction capability of the stainless steel, so that the high heat of the heating pipe is prevented from being transferred to the surrounding parts. Because the stainless steel still has outstanding resistance to deformation, can effectively guarantee the fastness of heating pipe and its surrounding parts connection. In order to further reduce the heat transfer of the heating pipe to the surrounding parts, the surface of the heat insulation column is hollowed, a plurality of groups of radiating grooves are dug, and the actual radiating area of the surface of the heat insulation column is increased by utilizing the additionally arranged radiating grooves, so that the heat transferred to the surrounding parts of the heating pipe is reduced, and the surrounding parts of the heating pipe are prevented from being affected by the high-temperature heating pipe. Tests show that the temperature of the heating pipe with the temperature as high as 170-180 ℃ is greatly reduced after being isolated by the heat-insulating column, the temperature of the surrounding parts is only 60 ℃ through actual measurement, and the heat-insulating pipe has very excellent heat-insulating capability.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.