A rolling and pressing device

Abstract

The present invention discloses a hemming pressing device, comprising a base plate, a positioning mechanism, a lifting mechanism, a rotary drive mechanism, axially inclined inward-folding rollers, and an axially horizontal downward-pressing roller. Two sets of positioning mechanisms are provided on the base plate; two sets of lifting mechanisms are provided; two sets of rotary drive mechanisms are provided at the lifting ends of the lifting mechanisms; the axially inclined inward-folding rollers and the axially horizontal downward-pressing rollers are eccentrically positioned at the rotating ends of the two sets of rotary drive mechanisms. The present invention utilizes automated pressing, replacing manual labor, thereby improving work efficiency, meeting production requirements, and correspondingly reducing manual labor intensity.

Description

Technical Field

[0001] The invention relates to a device for assisting a lithium battery cover plate in connecting with a circular pole, in particular to a rolling and pressing device. Background Art

[0002] The circular poles on the lithium battery cover are usually welded together, and the heat generated during the welding process will affect the product itself. In response to this, a new fixing method was adopted to replace the welding method between the lithium battery cover and the circular poles. The structure of the slots around the poles on the original lithium battery cover was improved, and a new method was developed. Figure 4 The lithium battery cover shown in the figure has a circle of edges integrated around the slot where the circular pole is located on the lithium battery cover body. The edges are folded inward toward the center of the slot and then pressed horizontally downward to press the edges onto the outer periphery of the circular pole in the slot, thereby fixing the circular pole on the lithium battery cover. Figure 5 The lithium battery cover shown replaces the original welding method between the lithium battery cover plate and the circular terminal.

[0003] However, in the face of the above-mentioned new fixing method, there is currently a lack of special equipment to force the edge to be folded inward toward the center of the slot and then pressed horizontally downward so that it is pressed onto the outer edge of the circular pole in the slot. As a result, these tasks have to be completed manually, and the manual efficiency is relatively low, which makes it difficult to meet production needs.

[0004] Therefore, to address this problem, it is necessary to develop a special device that folds the surrounding edge inward and then presses it horizontally, so that the surrounding edge is pressed onto the outer edge of the circular pole in the slot to replace manual work. Summary of the Invention

[0005] The present invention provides a rolling and pressing device to solve the technical problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A rolling and pressing device comprises a bottom plate, a positioning mechanism, a lifting mechanism, a rotary drive mechanism, an axially inclined inward folding roller and an axially horizontal downward pressing roller.

[0008] There are two groups of positioning mechanisms, both of which are arranged on the bottom plate and used to position the lithium battery cover;

[0009] There are two groups of lifting mechanisms, both of which are arranged on the bottom plate and are adjacent to the two groups of positioning mechanisms respectively;

[0010] There are two groups of rotary drive mechanisms, each of which is arranged at the lifting end of the lifting mechanism. Driven by the lifting end of the lifting mechanism, the rotary drive mechanism moves downward toward or upward away from the edge of the lithium battery cover at the positioning mechanism.

[0011] The axially inclined inward folding roller and the axially horizontal downward pressing roller are eccentrically arranged at the rotating ends of the two sets of rotary drive mechanisms. The rotating ends of the two sets of rotary drive mechanisms respectively drive the inward folding roller and the downward pressing roller to rotate around the axis of the edge on the lithium battery cover plate at the adjacent positioning mechanism, and move downward under the drive of the lifting end of the lifting mechanism to perform rolling inward folding and rolling downward pressing on the edge.

[0012] Furthermore, the positioning mechanism includes a first base and an end positioning assembly.

[0013] There are two groups of end positioning components, which are symmetrically arranged on the first base. The two groups of end positioning components respectively position the two ends of the lithium battery cover.

[0014] Furthermore, the end positioning assembly includes three groups of positioning bars distributed in a V shape, and the three groups of positioning bars respectively abut the end side and front and rear sides of the end of the lithium battery cover.

[0015] Furthermore, a flange bearing is provided on the upper side of the positioning bar.

[0016] Furthermore, the lifting mechanism includes a second base, a support, a slide rail, a skateboard, and a linear transmission assembly. The support is arranged on the second base, the slide rail is vertically arranged on one side of the support, the skateboard is slidably connected to the slide rail via a slider, and the linear transmission assembly is arranged on the support and drives the skateboard.

[0017] Furthermore, the linear transmission assembly includes a first motor, a lead screw, a nut, and a drive block. The first motor is arranged at the top of the support. The lead screw is axially and vertically mounted on the other side of the support, and the upper end is connected to the drive end of the first motor. The nut is connected to the lead screw, and the drive block is connected to the nut, and it passes through the support and is connected to the slide.

[0018] Furthermore, the rotary drive mechanism includes a second motor, a driving pulley, a driven pulley, a synchronous belt, and a flange. The second motor is mounted on the slide via a first L-shaped seat, the driving pulley is axially and vertically mounted on the driving end of the second motor, the driven pulley is axially and vertically mounted on the slide via a bearing seat, the synchronous belt is sleeved between the driving pulley and the driven pulley, and the flange is mounted on the lower end surface of the driven pulley and constitutes the rotating end of the rotary drive mechanism.

[0019] Furthermore, the rotary drive mechanism further comprises an idler wheel axially and vertically rotatably arranged on the first L-shaped seat, wherein the idler wheel rolls in contact with the synchronous belt.

[0020] Furthermore, the hemming and pressing device further includes a material ejection mechanism, comprising a second L-shaped seat, a cylinder, and a ejector rod. The second L-shaped seat is disposed on the support on the same side as the slide rail, the cylinder is vertically mounted on the second L-shaped seat via a bracket, and the ejector rod body vertically passes through the bearing seat, the driven pulley, and the center hole of the flange, with its lower end protruding from the lower end surface of the flange, and its upper end connected to the piston end of the cylinder.

[0021] Furthermore, the horizontal angle between the axis of the inward folding roller and the horizontal straight line is 45°.

[0022] The beneficial effects of the present invention are:

[0023] By driving two sets of lifting mechanisms and rotary drive mechanisms separately, the inward folding roller and the downward pressing roller respectively roll inward and horizontally press down the edges on the lithium battery cover at the adjacent positioning mechanism, ultimately fixing the circular pole on the lithium battery cover. This pressing method uses automated pressing to replace manual work, thereby improving work efficiency, meeting production needs, and correspondingly reducing manual labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 It is a perspective view of the present invention.

[0026] Figure 2 It is a side view of the first workstation of the present invention.

[0027] Figure 3 It is a side view of the second workstation of the present invention.

[0028] Figure 4 This is a schematic diagram of the state of an unprocessed lithium battery cover located at the positioning mechanism.

[0029] Figure 5 It is a schematic diagram of the state of the lithium battery cover after processing and forming located at the positioning mechanism.

[0030] Figure 6 It is a structural schematic diagram of the linear transmission component in the lifting mechanism of the present invention.

[0031] Figure 7 It is a three-dimensional structural diagram of the rotary drive mechanism in the first station of the present invention.

[0032] 1. Bottom plate;

[0033] 20. First base, 21. Positioning bar, 22. Flange bearing;

[0034] 30. Second base, 31. Support, 32. Slide rail, 33. Slide plate, 34. Slider, 35. First motor, 36. Lead screw, 37. Nut, 38. Drive block;

[0035] 40. Second motor, 41. Driving pulley, 42. Driven pulley, 43. Synchronous belt, 44. Flange, 45. First L-shaped seat, 46. Bearing seat, 47. Tensioner;

[0036] 5. Lithium battery cover; 6. Edge; 7. Inward folding roller; 8. Downward pressure roller

[0037] 90. Second L-shaped seat, 91. Cylinder, 92. Push rod, 93. Bracket;

[0038] 10. Circular pole. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] like Figure 1-7 As shown, the present invention provides a roll edge pressing device, comprising a base plate 1, a positioning mechanism, a lifting mechanism, a rotary drive mechanism, an axially inclined inward folding roller 7, and an axially horizontal downward pressing roller 8. There are two sets of positioning mechanisms, both arranged on the base plate 1, for positioning the lithium battery cover plate 5; there are two sets of lifting mechanisms, both arranged on the base plate 1 and adjacent to the two sets of positioning mechanisms; there are two sets of rotary drive mechanisms, each arranged at the lifting end of the lifting mechanism, and the rotary drive mechanism is driven by the lifting end of the lifting mechanism to move downward toward or upward away from the edge 6 on the lithium battery cover plate 5 at the positioning mechanism; the axially inclined inward folding roller 7 and the axially horizontal downward pressing roller 8 are eccentrically arranged at the rotating ends of the two sets of rotary drive mechanisms, and the rotating ends of the two sets of rotary drive mechanisms respectively drive the inward folding roller 7 and the downward pressing roller 8 to rotate around the axis of the edge 6 on the lithium battery cover plate 5 at the adjacent positioning mechanism, and move downward under the drive of the lifting end of the lifting mechanism to roll the edge 6 inward and roll downward. Two groups of positioning mechanisms, two groups of lifting mechanisms, and two groups of rotary drive mechanisms correspond to each other one by one, forming two groups of processing stations with the same structure and working process on the base plate 1. The inward folding roller 7 and the downward pressure roller 8 are respectively arranged at the rotating ends of the rotary drive mechanisms in the two groups of processing stations. According to the processing procedure, the station corresponding to the inward folding roller 7 is set as the first station, and the station corresponding to the downward pressure roller 8 is set as the second station.

[0041] In the present invention, there are two slots on the lithium battery cover 5 body corresponding to the circular poles 10, and the outer peripheries of the two slots are provided with a surrounding edge 6, so there are two surrounding edges 6, and the circular poles 10 placed corresponding to the two slots are respectively positive and negative poles. Therefore, after the lithium battery cover 5 is placed on the positioning mechanism in the first workstation for positioning, the positive and negative circular poles 10 are respectively placed in the two slots on the lithium battery cover 5, and then the lifting mechanism is driven by the lifting end to drive the rotary drive mechanism to move downward so that it approaches one of the surrounding edges 6 on the lithium battery cover 5. During the descending process, the rotating end of the rotary drive mechanism drives the inner folding roller 7 to rotate around the axis of the surrounding edge 6 on the lithium battery cover 5, and then the inner folding roller 7 rolls in contact with the surrounding edge 6 due to the downward movement, and the inner folding roller 7 rolls around the surrounding edge 6. The horizontal angle between the axis of the inner folding roller 7 and the horizontal straight line is 45°. , so the surrounding edge 6 can generate a horizontal component of force toward the center of the slot, and as it moves downward, the surrounding edge 6 is folded inward, so that its inner wall contacts the outer edge of the corresponding circular pole 10, and an oblique downward pressure is generated on the outer edge of the circular pole 10. Then, the inward folding roller 7 is driven by the lifting mechanism to move up and away from the surrounding edge 6, and then the lithium battery cover 5 placed at the positioning mechanism in the first station is rotated 180°, so that the other surrounding edge 6 on the lithium battery cover 5 corresponds to the inward folding roller 7, and according to the same working method as above, the inward folding roller 7 causes the other surrounding edge 6 to fold inward, so that its inner wall also contacts the outer edge of the corresponding circular pole 10, and an oblique downward pressure is generated on the outer edge of the circular pole 10. After the two surrounding edges 6 on the lithium battery cover 5 have completed the inward folding work, they are transferred to the positioning mechanism in the second station for positioning;

[0042] The second station has the same structure and working process as the first station. According to the same working method as mentioned above, as the pressing roller 8 moves downward, the bent parts formed by the inward folding of the two surrounding edges 6 on the lithium battery cover 5 are pressed downward in turn by the pressing roller 8 rotating and rolling around the surrounding edges 6, so that the two surrounding edges 6 are respectively pressed flat on the upper side surfaces of the outer peripheral edges of the two circular poles 10, so that the two surrounding edges 6 are pressed on the outer peripheral edges of the two circular poles 10, and finally the circular poles 10 are fixed on the lithium battery cover 5. This pressing method adopts automated pressing to replace manual work, thereby improving work efficiency, meeting production needs, and correspondingly reducing manual labor intensity.

[0043] In this embodiment, the positioning mechanism includes a first base 20 and an end positioning component. There are two groups of end positioning components, which are symmetrically arranged on the first base 20. The two groups of end positioning components respectively position the two ends of the lithium battery cover plate 5. The end positioning component specifically includes three positioning bars 21 distributed in a U-shape. The three positioning bars 21 respectively abut against the end side and the front and rear sides of the end of the lithium battery cover plate 5, so as to realize the positioning of the end of the lithium battery cover plate 5. The two groups of end positioning components realize the common positioning of the two ends of the lithium battery cover plate 5, and finally position the lithium battery cover plate 5 body. A flange bearing 22 is installed on the upper side of the positioning bar 21. The flange bearing 22 plays a role of rolling guidance for the side of the lithium battery cover plate 5, and can accurately place the lithium battery cover plate 5 into the range defined by the two groups of end positioning components without obstacles and resistance.

[0044] In this embodiment, the lifting mechanism includes a second base 30, a support 31, a slide rail 32, a slide plate 33, and a linear drive component. The support 31 is arranged on the second base 30. The slide rail 32 is vertically arranged on one side of the support 31. The slide plate 33 is slidably connected to the slide rail 32 through a slider 34. The linear drive component is arranged on the support 31 and is drivingly connected to the slide plate 33, so that the slide plate 33 constitutes the lifting end of the lifting mechanism. Specifically, the linear drive component includes a first motor 35, a lead screw 36, a lead nut 37, and a drive block 38. The first motor 35 is arranged at the top of the support 31. The lead screw 36 is axially vertically installed on the other side of the support 31, and the upper end is connected to the drive end of the first motor 35. The lead nut 37 is connected to the lead screw 36. The drive block 38 is connected to the lead nut 37 and passes through the support 31 and is connected to the slide plate 33. The specific lifting drive principle: The first motor 35 drives the lead screw 36 to rotate, so that the lead nut 37 drives the drive block 38, and the drive block 38 drives the slide plate 33 to move up or down along the guide of the slide rail 32. Therefore, the lifting mechanism moves up and down through the slide plate 33 that constitutes its lifting end, and drives the rotation drive mechanism to lift.

[0045] In this embodiment, the rotary drive mechanism includes a second motor 40, a driving pulley 41, a driven pulley 42, a synchronous belt 43, and a flange 44. The second motor 40 is mounted on the slide 33 via a first L-shaped seat 45. The driving pulley 41 is axially and vertically mounted at the driving end of the second motor 40. The driven pulley 42 is axially and vertically mounted on the slide 33 via a bearing seat 46. The synchronous belt 43 is sleeved between the driving pulley 41 and the driven pulley 42. The flange 44 is mounted on the lower end surface of the driven pulley 42 and constitutes the rotating end of the rotary drive mechanism. The aforementioned inward-folding roller 7 and downward-pressing roller 8 are eccentrically mounted on the flange 44. The rotary drive mechanism also includes a tensioning pulley 47 axially and vertically mounted on the first L-shaped seat 45. The tensioning pulley 47 rolls in contact with the synchronous belt 43 to keep the synchronous belt 43 in a tensioned state. The rotation drive function of the rotation drive mechanism: the second motor 40 is used to drive the driving pulley 41 to rotate, and the driving pulley 41 drives the driven pulley 42 to rotate through the synchronous belt 43, and the flange 44 rotates along with the driven pulley 42. Therefore, the flanges 44 in the two sets of rotation drive mechanisms can respectively drive the inward folding roller 7 and the downward pressure roller 8 to rotate around the axis of the edge 6 on the lithium battery cover 5 at the adjacent positioning mechanism.

[0046] In order to further improve the quality of the edge pressing of the present invention, before the inner folding roller 7 and the downward pressing roller 8 fold the edge 6 inward and press it horizontally, the circular pole 10 placed in the slot on the lithium battery cover 5 is pressed by the ejection mechanism to prevent the circular pole 10 from being displaced when the inner folding roller 7 and the downward pressing roller 8 respectively contact the edge 6 and roll the edge 6, thereby affecting the final molding quality. The ejection mechanism includes a second L-shaped seat 90, a cylinder 91, and a ejector rod 92. The second L-shaped seat 90 is set on the support 31 on the same side as the slide rail 32. The cylinder 91 is axially and vertically set on the second L-shaped seat 90 through the bracket 93. The ejector rod 92 body vertically passes through the bearing seat 46, the driven pulley 42, and the center hole of the flange 44, and the lower end protrudes from the lower end surface of the flange 44. Its upper end is connected to the piston end of the cylinder 91. The specific pushing principle of the pushing mechanism: when there is a circular pole 10 in the slot on the lithium battery cover 5, and before the inward folding roller 7 and the downward pressure roller 8 fold the surrounding edge 6 inward and press it horizontally, the piston end of the cylinder 91 moves downward and extends, thereby driving the push rod 92 to move downward, so that the lower end of the push rod 92 is pressed on the top surface of the circular pole 10 within the surrounding edge 6 corresponding to the inward folding roller 7 and the downward pressure roller 8 at this time, and then the inward folding roller 7 and the downward pressure roller 8 fold the surrounding edge 6 inward and press it horizontally. By pressing the circular pole 10 in advance, it can be prevented that the circular pole 10 is displaced when the inward folding roller 7 and the downward pressure roller 8 respectively contact the surrounding edge 6 and roll the surrounding edge 6, thereby affecting the final molding quality.

[0047] The above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A hemming and pressing device, characterized by comprising: A bottom plate (1); Two positioning mechanisms, both arranged on the bottom plate (1) and used for positioning the lithium battery cover plate (5); Two lifting mechanisms, both arranged on the bottom plate (1) and adjacent to the two positioning mechanisms respectively. The lifting mechanism includes: A second base (30); A support (31), arranged on the second base (30); A slide rail (32), vertically arranged on one side of the support (31); A slide plate (33), which is slidably connected to the slide rail (32) through a slider (34); A linear drive assembly, arranged on the support (31) and drivingly connected to the slide plate (33); Two rotary drive mechanisms, respectively arranged at the lifting ends of the lifting mechanisms. The rotary drive mechanisms move downwards close to or upwards away from the hemming edge (6) on the lithium battery cover plate (5) at the positioning mechanism under the drive of the lifting ends of the lifting mechanisms. The rotary drive mechanism includes: A second motor (40), arranged on the slide plate (33) through a first L-shaped seat (45); A driving pulley (41), axially vertically arranged at the driving end of the second motor (40); A driven pulley (42), axially vertically arranged on the slide plate (33) through a bearing seat (46); A synchronous belt (43), sleeved between the driving pulley (41) and the driven pulley (42); A flange plate (44), arranged on the lower end face of the driven pulley (42) and constituting the rotary end of the rotary drive mechanism; Axially inclined inner folding rollers (7) and axially horizontal pressing rollers (8), respectively eccentrically arranged at the rotary ends of the two rotary drive mechanisms. The rotary ends of the two rotary drive mechanisms respectively drive the inner folding rollers (7) and the pressing rollers (8) to rotate around the axis of the hemming edge (6) on the lithium battery cover plate (5) at the adjacent positioning mechanism, and move downwards under the drive of the lifting ends of the lifting mechanisms to respectively perform rolling inner folding and rolling pressing on the hemming edge (6); A material ejecting mechanism, which includes: A second L-shaped seat (90), arranged on the support (31) on the same side as the slide rail (32); A cylinder (91), axially vertically arranged on the second L-shaped seat (90) through a bracket (93); A ejector rod (92), whose body vertically passes through the center holes of the bearing seat (46), the driven pulley (42), and the flange plate (44) and the lower end protrudes from the lower end face of the flange plate (44), and the upper end is connected to the piston end of the cylinder (91).

2. The roll edge pressing device according to claim 1, characterized in that The positioning mechanism includes: A first base (20); Two end positioning components, symmetrically arranged on the first base (20), and the two end positioning components respectively position the two ends of the lithium battery cover plate (5).

3. The roll edge pressing device according to claim 2, characterized in that The end positioning component includes three positioning bars (2l) distributed in a U-shape, and the three positioning bars (2l) respectively abut against the end sides and the front and rear sides of the end of the lithium battery cover plate (5).

4. The roll edge pressing device according to claim 3, characterized in that A flange bearing (22) is mounted on the upper side of the positioning bar (21).

5. The roll edge pressing device according to claim 1, characterized in that The linear transmission assembly includes a first motor (35), a lead screw (36), a nut (37), and a drive block (38). The first motor (35) is arranged at the top of the support (31). The lead screw (36) is axially and vertically mounted on the other side of the support (31), and the upper end is connected to the drive end of the first motor (35). The nut (37) is connected to the lead screw (36). The drive block (38) is connected to the nut (37), and passes through the support (31) and is connected to the slide (33).

6. The roll edge pressing device according to claim 1, characterized in that The rotary drive mechanism further comprises a tensioning wheel (47) axially and vertically rotatably arranged on the first L-shaped seat (45), wherein the tensioning wheel (47) rolls in contact with the synchronous belt (43).

7. The roll edge pressing device according to claim 1, characterized in that The horizontal angle between the axis of the inward folding roller (7) and the horizontal straight line is 45°.

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