Cylindrical power battery steel shell groove rolling machine

Abstract

The present invention discloses a cylindrical power battery steel shell groove rolling machine, comprising a frame, a pressing mechanism, a rotating mechanism, a groove rolling mechanism, an upper push mechanism and a dust suction nozzle assembled on the groove rolling mechanism. The pressing mechanism presses down the steel shell at the upper push mechanism from above and clamps the steel shell together with the upper push mechanism. The groove rolling wheel in the groove rolling mechanism is located at the side of the upper push mechanism. The dust suction nozzle is located at the side of the groove rolling wheel and slides horizontally following the groove rolling wheel. The dust suction nozzle is also arranged around the periphery of the groove rolling wheel. In the process of the groove rolling wheel rolling an annular groove on the outer wall of the port of the steel shell, the pressing mechanism presses down the outer wall of the port of the steel shell from above and bends and deforms the rolling section of the outer wall of the port. At the same time, the upper push mechanism presses up the outer wall of the port of the steel shell from below and bends and deforms the rolling section of the outer wall of the port. The dust suction nozzle sucks away the dust generated by the groove rolling wheel in the groove rolling process. This ensures that the force is evenly applied during the groove rolling process of the steel shell and that the steel shell is clean.

Description

Technical Field

[0001] The invention relates to a groove rolling machine, in particular to a groove rolling machine for a cylindrical power battery steel shell. Background Art

[0002] Cylindrical batteries are batteries with high capacity, long cycle life and a wide range of ambient temperature. They are widely used in various occasions. For example, they can be used as power batteries for new energy vehicles, electric bicycles and electric motorcycles.

[0003] Among them, in the production and processing of cylindrical batteries, it is necessary to roll grooves on the outer side wall of the port of the battery steel shell to facilitate the subsequent steel shell sealing operation.

[0004] In the process of rolling grooves on the outer side wall of the battery steel shell, the battery steel shell needs to be clamped first, and then the rolling groove mechanism rolls the clamped battery steel shell, and the battery steel shell needs to be rotated during the rolling process. However, the existing rolling groove equipment clamps the battery steel shell by the downward sliding pressure of the upper pressure structure and the fixed support of the battery steel shell by the lower support structure; therefore, in the process of rolling grooves, the deformation of the battery steel shell rolling groove is compensated by the upper part, which causes the battery steel shell to be unevenly stressed due to the unilateral top pressure, thereby affecting the rolling groove quality of the battery steel shell; at the same time, the battery steel shell generates dust during the rolling groove process, resulting in a large amount of dust remaining in the battery steel shell after the rolling groove, so the cleanliness is poor.

[0005] Therefore, there is an urgent need for a cylindrical power battery steel shell grooving machine that can ensure uniform force on the steel shell during the grooving process to ensure the quality and cleanliness of the steel shell grooving to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a cylindrical power battery steel shell groove rolling machine in which the steel shell is subjected to uniform force during the groove rolling process to ensure the groove rolling quality and cleanliness of the steel shell.

[0007] In order to achieve the above-mentioned purpose, the cylindrical power battery steel shell grooving machine of the present invention is suitable for rolling a circular groove on the outer side wall of the port of the steel shell of the cylindrical power battery, and comprises a frame, a pressing mechanism, a rotating mechanism, a grooving mechanism, an upper push mechanism located directly below the pressing mechanism and used to support the steel shell from below, and a dust suction nozzle assembled on the grooving mechanism, the upper push mechanism is assembled on the frame, the pressing mechanism, the rotating mechanism and the grooving mechanism are each assembled on the frame, the pressing mechanism presses down the steel shell at the upper push mechanism from above and clamps the steel shell together with the upper push mechanism, the grooving wheel in the grooving mechanism is located on the side of the upper push mechanism; the dust suction nozzle is located on the The side of the groove rolling wheel and following the groove rolling wheel horizontally slide to or away from the position in contact with the steel shell clamped by the upper push mechanism and the lower pressure mechanism, and the dust suction nozzle is also arranged around the circumference of the groove rolling wheel; wherein, in the process of the groove rolling wheel rolling out the annular groove on the outer side wall of the port of the steel shell clamped by the upper push mechanism and the lower pressure mechanism, the lower pressure mechanism presses the outer side wall of the port of the steel shell downward from the top and bends and deforms the rolled section of the outer side wall of the port, while the upper push mechanism presses the outer side wall of the port of the steel shell upward from the bottom and bends and deforms the rolled section of the outer side wall of the port, and the dust suction nozzle sucks away the dust generated by the groove rolling wheel in the rolling groove.

[0008] Preferably, the cylindrical power battery steel shell grooving machine of the present invention also includes a loading conveyor line, a pushing mechanism, a pulling mechanism, a lifting mechanism, a unloading conveyor line and a suction mechanism assembled on the frame, the loading conveyor line and the unloading conveyor line are both located on one side of the lifting mechanism, the grooving mechanism is located on the other side opposite to the lifting mechanism, the loading conveyor line and the unloading conveyor line are arranged side by side and separated along the X-axis direction, the loading conveyor line and the unloading conveyor line also extend horizontally along the Y-axis direction, the grooving mechanism is staggered with the loading conveyor line and the unloading conveyor line respectively along the X-axis direction, the pushing mechanism is located between the loading conveyor line and the grooving mechanism along the Y-axis direction, and the pushing mechanism is used to transfer the material conveyed by the loading conveyor line The jig sleeve and the steel shell on the jig sleeve are sent to the upper pushing mechanism together along the X-axis direction. The pulling mechanism is located between the unloading conveyor line and the grooving mechanism along the Y-axis direction and faces the pushing mechanism. The pulling mechanism is used to pull the jig sleeve at the upper pushing mechanism together with the steel shell along the X-axis direction to a unloading position. The suction mechanism is located directly above the steel shell at the unloading position. The pulling mechanism is also used to suck away impurities in the steel shell at the unloading position. The pushing mechanism is located at the corner sandwiched by the grooving mechanism and the pulling mechanism. The pushing mechanism is used to push the jig sleeve and the steel shell at the unloading position into the unloading conveyor line along the Y-axis direction. The grooving wheel of the grooving mechanism slides along the Y-axis direction.

[0009] Preferably, the pushing mechanism, pulling mechanism and ejecting mechanism each include a cylinder and a ejecting block assembled and connected to the output end of the cylinder, the ejecting block has an arc structure matching the steel shell, and the ejecting block is also embedded with a magnet for making the steel shell abut against the arc structure; the suction mechanism includes upper and lower cylinders, a vacuum pipe, and a vacuum sleeve connected to the vacuum pipe, the output ends of the upper and lower cylinders are arranged downward, the vacuum pipe extends along the up and down directions of the frame, the upper end of the vacuum pipe is also assembled and connected to the output ends of the upper and lower cylinders, the vacuum sleeve is installed at the lower end of the vacuum pipe, and the vacuum sleeve is cooperatively mounted on the outside of the steel shell in the unloading position during the process of the upper and lower cylinders driving the vacuum pipe to slide downward.

[0010] Preferably, the frame includes a horizontal base plate, a gantry bracket assembled on the horizontal base plate from above the horizontal base plate, an outer frame supporting the horizontal base plate from below the horizontal base plate, and an inner bracket located in the outer frame and assembled to the horizontal base plate from below the horizontal base plate, the outer frame is also assembled and connected to the horizontal base plate, the pressing mechanism and the suction mechanism are assembled on the gantry bracket, the loading conveyor line, the pushing mechanism, the pulling mechanism, the lifting mechanism, the unloading conveyor line and the rolling groove mechanism are each assembled on the horizontal base plate, and the lifting mechanism is assembled on the horizontal base plate and the inner bracket at the same time.

[0011] Preferably, the lifting mechanism comprises a first push rod, a second push rod, an anti-rotation guide sleeve, a lifting cam, a rotary driver, a supporting mold base for supporting the steel shell and a hollow shaft, the hollow shaft is axially fixedly installed on the frame and can rotate relative to the frame, the anti-rotation guide sleeve is located directly below the hollow shaft and fixed to the frame, the first push rod slides through the anti-rotation guide sleeve along the up-down direction of the frame, the anti-rotation guide sleeve also blocks the first push rod from rotating relative to the anti-rotation guide sleeve, the second push rod can slide through the hollow shaft along the up-down direction of the frame and can Following the hollow shaft, the second push rod rotates relative to the frame, the lower end of the second push rod rotates with the upper end of the first push rod, the upper end of the second push rod is assembled and connected with the supporting mold base, the lifting cam is located directly below the first push rod and pushes with the lower end of the first push rod, the rotary driver is installed on the frame and drives the lifting cam to rotate, and the lifting cam pushes the first push rod, the second push rod, the supporting mold base and the steel shell to slide upward during the rotation process, and the rotating mechanism drives the hollow shaft to drive the second push rod, the supporting mold base and the steel shell to rotate together.

[0012] Preferably, the lifting mechanism also includes a bearing seat, a circular ring and a roller located directly above the anti-rotation guide sleeve, the bearing seat is fixed to the frame, a bearing is mounted between the bearing seat and the hollow shaft, the lower end of the hollow shaft passes downward through the bearing seat, the circular ring is fitted on the upper end of the first push rod and the lower end of the second push rod, the roller is assembled on the lower end of the first push rod and protrudes downward from the first push rod, and the roller is rollingly matched with the lifting cam.

[0013] Preferably, the lifting mechanism further includes a movable ram and a spring, the supporting mold seat is provided with a movable cavity with the cavity opening facing upward, the movable ram can be slidably arranged in the movable cavity along the up and down directions of the frame, the spring is located in the movable cavity and is arranged between the movable ram and the supporting mold seat, and the spring always has a tendency to make the movable ram slide upward to resist the supporting mold seat.

[0014] Preferably, the movable ejector head and the supporting die seat are each provided with a matching structure, and the spring causes the matching structures of the movable ejector head and the supporting die seat to abut against each other.

[0015] Preferably, the rotating mechanism includes a rotating motor, a driving wheel, a driven wheel and a winding transmission member, the output shaft of the rotating motor is arranged upward or downward, the driving wheel is mounted on the output shaft of the rotating motor, the driven wheel is mounted on the position where the hollow shaft passes through the bearing seat, and the winding transmission member is tautly mounted on the driving wheel and the driven wheel.

[0016] Preferably, the pressing mechanism includes an electric push rod, a pressing head and a buffer spring, the output end of the electric push rod is arranged downward, the pressing head can be slidably assembled on the output end of the electric push rod along the up and down directions of the frame, a first blocking structure is provided on the output end of the electric push rod, the buffer spring is provided between the output end of the electric push rod and the pressing head, and the buffer spring always has a tendency to drive the pressing head to slide downward until it is blocked by the first blocking structure.

[0017] Compared with the prior art, with the aid of an upper push mechanism and a dust suction nozzle which is assembled on the grooving mechanism and slides along with the grooving wheel in the grooving mechanism, in the process of the grooving wheel rolling out the annular groove on the outer side wall of the port of the steel shell clamped by the upper push mechanism and the lower pressure mechanism, the lower pressure mechanism presses the outer side wall of the port of the steel shell downward from the top and bends and deforms the rolled section of the outer side wall of the port, while the upper push mechanism presses the outer side wall of the port of the steel shell upward from the bottom and bends and deforms the rolled section of the outer side wall of the port, so as to compensate for the deformation of the steel shell from below and above, thereby making the force on the steel shell uniform and ensuring the quality of the grooving of the steel shell; at the same time, the dust suction nozzle is arranged around the periphery of the grooving wheel, and the dust suction nozzle sucks away the dust generated by the grooving wheel in the rolling groove, so as to prevent the dust from polluting the working environment and the steel shell, thereby ensuring the cleanliness of the steel shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the cylindrical power battery steel shell groove rolling machine of the present invention.

[0019] Figure 2 yes Figure 1 The three-dimensional image of the cylindrical power battery steel shell grooving machine shown at another angle.

[0020] Figure 3 It is a three-dimensional diagram of the pressing mechanism, the pushing mechanism and the rotating mechanism in the cylindrical power battery steel shell groove rolling machine of the present invention when they are installed on the frame and the steel shell is not clamped.

[0021] Figure 4 yes Figure 3 The illustrated plan view of the assembled pressing mechanism, lifting mechanism, rotating mechanism and frame viewed from the front to the back.

[0022] Figure 5 yes Figure 4 The plan view of the assembled pressing mechanism, lifting mechanism, rotating mechanism and frame after being clamped by the steel shell is shown.

[0023] Figure 6 yes Figure 4 The internal view of the assembled pressing mechanism, lifting mechanism, rotating mechanism and frame after being cut by a plane passing through the center line and parallel to the reading surface.

[0024] Figure 7 yes Figure 6 Internal view of the hold-down mechanism shown mounted at the gantry bracket.

[0025] Figure 8 yes Figure 6 Interior view after the hold-down mechanism and gantry bracket are hidden.

[0026] Fig. 9It is a plan view of the groove rolling mechanism and the dust suction nozzle in the cylindrical power battery steel shell groove rolling machine of the present invention when they are assembled together.

[0027] Fig.10 It is a stereoscopic diagram of the pushing mechanism in the cylindrical power battery steel shell groove rolling machine of the present invention.

[0028] Fig.11 It is a three-dimensional diagram of the suction mechanism in the invented cylindrical power battery steel shell groove rolling machine.

[0029] Fig.12 It is a plan view of a steel shell without a circular groove rolled out by the cylindrical power battery steel shell grooving machine of the present invention.

[0030] Fig.13 It is a plan view of a steel shell on which a circular groove has been rolled out by the cylindrical power battery steel shell groove rolling machine of the present invention. DETAILED DESCRIPTION

[0031] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0032] See also Figure 1 , Fig.12 and Fig.13 The cylindrical power battery steel shell groove rolling machine 100 of the present invention is suitable for rolling a circular groove 220 on the outer side wall 210 of the port of the cylindrical power battery steel shell 200. Fig.13 As shown, the steel shell 200 is sealed in the following manner. Fig.12 shown in Fig.12 In the figure, reference numeral 211 indicates the length of the rolled section of the steel shell 200 , that is, the rolled section 211 is bent and deformed so that the bent rolled section 211 surrounds the annular groove 220 .

[0033] And combined Figure 2 The cylindrical power battery steel shell groove rolling machine 100 of the present invention includes a frame 10, a pressing mechanism 20, a lifting mechanism 30, a rotating mechanism 40, a groove rolling mechanism 50 and a dust suction nozzle 60. The lifting mechanism 30 is assembled on the frame 10, and the frame 10 provides a support function and a place for assembly for the lifting mechanism 30. The lifting mechanism 30 is also located directly below the pressing mechanism 20 and is used to support the steel shell 200 from below; the pressing mechanism 20, the rotating mechanism 40 and the groove rolling mechanism 50 are each assembled on the frame 10, and the frame 10 provides them with a support function and a place for assembly. The pressing mechanism 20 presses down the steel shell 200 at the lifting mechanism 30 from above and clamps the steel shell 200 together with the lifting mechanism 30. The state is shown in FIG. Figure 5As shown; the groove rolling wheel 51 in the groove rolling mechanism 50 is located beside the upper mechanism 30; the dust suction nozzle 60 is mounted on the groove rolling mechanism 50, and the dust suction nozzle 60 is located beside the groove rolling wheel 51 in the groove rolling mechanism 50, and the dust suction nozzle 60 is also arranged around the periphery 511 of the groove rolling wheel 51, and the state is shown Fig. 9 As shown, the dust nozzle 60 also follows the groove rolling wheel 51 to slide horizontally to the position in contact with the steel shell 200 clamped by the upper push mechanism 30 and the lower pressure mechanism 20 to meet the needs of groove rolling; or, slides away from the position in contact with the steel shell 200 clamped by the upper push mechanism 30 and the lower pressure mechanism 20 to facilitate the loading or unloading operation of the steel shell 200. Preferably, the groove rolling wheel 51 of the groove rolling mechanism 50 slides along the Y-axis direction, so that the dust nozzle 60 follows the groove rolling wheel 51 to slide along the Y-axis direction, but it is not limited to this. In the process of the groove rolling wheel 51 rolling the annular groove 220 on the port outer wall 210 of the steel shell 200 clamped by the upper push mechanism 30 and the lower pressure mechanism 20, the lower pressure mechanism 20 presses the port outer wall 210 of the steel shell 200 downward from the top and bends and deforms the rolling section 211 of the port outer wall 210, while the upper push mechanism 30 presses the port outer wall 210 of the steel shell 200 upward from the bottom and bends and deforms the rolling section 211 of the port outer wall 210, so that the groove rolling wheel 51 is surrounded by the bent and deformed rolling section 211, thereby forming the annular groove 220; and the dust suction nozzle 60 sucks away the dust generated in the rolling groove by the groove rolling wheel 51, that is, the dust generated in the process of the groove rolling wheel 51 rolling the rolling section 211. More specifically, as follows:

[0034] like Figure 1 and Figure 2 As shown, the frame 10 includes a horizontal base plate 11, a gantry bracket 12 mounted on the horizontal base plate 11 from above the horizontal base plate 11, an outer frame 13 supporting the horizontal base plate 11 from below the horizontal base plate 11, and an inner bracket 14 located inside the outer frame 13 and mounted on the horizontal base plate 11 from below the horizontal base plate 11. The outer frame 13 is also assembled and connected with the horizontal base plate 11, and the horizontal base plate 11 is carried by the outer frame 13. Such a design makes the structure of the frame 10 reasonable and facilitates the arrangement and assembly of external mechanisms; of course, according to actual needs, the frame 10 can also be other structures, so it is not limited to this.

[0035] like Figure 1 and Figure 2 As shown, in order to realize automatic loading, unloading and internal impurity removal, the cylindrical power battery steel shell groove rolling machine 100 of the present invention also includes a loading conveyor line 71, a pushing mechanism 72, a pulling mechanism 73, a lifting mechanism 74, a unloading conveyor line 75 and a suction mechanism 76 assembled on the frame 10. The loading conveyor line 71 and the unloading conveyor line 75 are both located on one side of the lifting mechanism 30, for example but not limited to Figure 1The groove mechanism 50 is located on the other side of the top mechanism 30, for example but not limited to Figure 1 The feeding conveyor line 71 and the unloading conveyor line 75 are arranged side by side in a spaced manner along the X-axis direction, and the feeding conveyor line 71 and the unloading conveyor line 75 are also extended horizontally along the Y-axis direction, so that the feeding conveyor line 71 can feed the steel shell 200 along the Y-axis direction, and the unloading conveyor line 75 can unload the steel shell 200 along the Y-axis direction; the groove rolling mechanism 50 is staggered with the feeding conveyor line 71 and the unloading conveyor line 75 along the X-axis direction; the pushing mechanism 72 is located at the feeding conveyor line 71 and the unloading conveyor line 75 along the Y-axis direction. Between the conveyor line 71 and the groove rolling mechanism 50, the pushing mechanism 72 is used to send the jig sleeve 300 and the steel shell 200 on the jig sleeve 300 delivered by the feeding conveyor line 71 to the upper push mechanism 30 along the X-axis direction; the pulling mechanism 73 is located between the unloading conveyor line 75 and the groove rolling mechanism 50 along the Y-axis direction and faces the pushing mechanism 72. The pulling mechanism 73 is used to pull the jig sleeve 300 at the upper push mechanism 30 together with the steel shell 200 along the X-axis direction to the unloading position, that is, Figure 2 The steel shell 200 is aligned with the suction mechanism 76, and the suction mechanism 76 is located directly above the steel shell 200 at the unloading position; the pulling mechanism 73 is also used to suck away impurities in the steel shell 200 at the unloading position; the pushing mechanism 74 is located at the corner sandwiched by the groove rolling mechanism 50 and the pulling mechanism 73, and the pushing mechanism 74 is used to push the jig sleeve 300 and the steel shell 200 at the unloading position into the unloading conveyor line 75 along the Y-axis direction, and the steel shell 200 that has been rolled out with the annular groove 220 is unloaded together with the jig sleeve 300 used to carry the steel shell 200. Specifically, in Figure 1 and Figure 2 In the embodiment, the pressing mechanism 20 and the suction mechanism 76 are mounted on the gantry support 12, the feeding conveyor line 71, the pushing mechanism 72, the pulling mechanism 73, the lifting mechanism 74, the unloading conveyor line 75 and the groove rolling mechanism 50 are each mounted on the horizontal base plate 11, and the lifting mechanism 30 is simultaneously mounted on the horizontal base plate 11 and the inner support 14. This design makes the cylindrical power battery steel shell groove rolling machine 100 of the present invention more compact and more reasonable. More specifically, in Fig.10 In the figure, the pushing mechanism 72 includes a cylinder 721 and a top block 722 assembled and connected to the output end 7211 of the cylinder 721, the top block 722 has an arc structure 7221 matching the steel shell 200, and a magnet 723 for making the steel shell 200 abut against the arc structure 7221 is also embedded in the top block 722. This design can more reliably transfer the jig sleeve 300 and the steel shell 200 transported by the upper feeding conveyor line 71 to the upper ejection mechanism 30 together, and simplify the structure of the pushing mechanism 72; since the structures of the pulling mechanism 73 and the ejection mechanism 74 are the same as those of the pushing mechanism 72, the structures of the pulling mechanism 73 and the ejection mechanism 74 are no longer described in detail; in addition, Fig.11 In the figure, the suction mechanism 76 includes an upper and lower cylinder 761, a vacuum suction pipe 762, and a vacuum sleeve 763 connected to the vacuum suction pipe 762. The output end 7611 of the upper and lower cylinders 761 is arranged downward, and the vacuum suction pipe 762 extends along the up and down directions of the frame 10. The upper end of the vacuum suction pipe 762 is also assembled and connected with the output end 7611 of the upper and lower cylinders 761. The vacuum sleeve 763 is installed at the lower end of the vacuum suction pipe 762. In the process of the upper and lower cylinders 761 driving the vacuum suction pipe 762 to slide downward, the vacuum sleeve 763 is cooperatively sleeved on the outside of the steel shell 200 in the unloading position to improve the reliability of the suction mechanism 76 in sucking away impurities in the steel shell 200. Preferably, a sleeve cavity 7631 is formed inside the vacuum sleeve 763, and the contour of the sleeve cavity 7631 matches the contour of the steel shell 200, so that the steel shell 200 is tightly sleeved in the sleeve cavity 7631, but it is not limited to this.

[0036] like Figures 3 to 6As shown, the lifting mechanism 30 includes a first lifting rod 31a, a second lifting rod 31b, an anti-rotation guide sleeve 31c, a lifting cam 31d, a rotation driver 31e, a supporting mold base 31f for supporting the steel shell 200, and a hollow shaft 31g. The hollow shaft 31g is axially fixedly installed on the frame 10, that is, the hollow shaft 31g installed on the frame 10 cannot slide axially relative to the frame 10, and can only rotate relative to the frame 10. When the frame 10 includes a horizontal base plate 11, a gantry bracket 12, an outer frame 13 and an inner bracket 14, the hollow shaft 31g is installed at the horizontal base plate 11; the anti-rotation guide sleeve 31c is located directly below the hollow shaft 31g and is fixed to the frame 10, and the frame 10 provides a support function and an assembly place for the anti-rotation guide sleeve 31c. When the frame 10 includes a horizontal base plate 11, a gantry bracket 12, an outer frame 13 and an inner bracket 14, the anti-rotation guide sleeve 31c c is installed at the inner bracket 14; the first push rod 31a slides through the anti-rotation guide sleeve 31c along the up-down direction of the frame 10 (see the direction indicated by arrow A and the opposite direction), and the anti-rotation guide sleeve 31c also blocks the first push rod 31a from rotating relative to the anti-rotation guide sleeve 31c, so that the first push rod 31a can only slide up and down under the guidance of the anti-rotation guide sleeve 31c, and cannot rotate; the second push rod 31b can slide through the hollow shaft 31g along the up-down direction of the frame 10 and can rotate relative to the frame 10 with the hollow shaft 31g, that is, the second push rod 31b can not only slide up and down relative to the hollow shaft 31g, but also rotate with the hollow shaft 31g, and the second push rod The lower end of 31b is rotatably matched with the upper end of the first push rod 31a to meet the need of the second push rod 31b to rotate with the hollow shaft 31g. The upper end of the second push rod 31b is assembled and connected with the supporting mold base 31f, so that the supporting mold base 31f and the second push rod 31b are fixed together; the lifting cam 31d is located directly below the first push rod 31a and is pushed and matched with the lower end of the first push rod 31a. The rotation driver 31e is installed on the frame 10, and the frame 10 provides a support function and an assembly place for the rotation driver 31e. When the frame 10 includes a horizontal base plate 11, a gantry bracket 12, an outer frame 13 and an inner bracket 14, the rotation at this time The driver 31e is installed at the inner bracket 14, and the rotating driver 31e also drives the lifting cam 31d to rotate; during the rotation process, the lifting cam 31d pushes the first push rod 31a, the second push rod 31b, the supporting mold seat 31f and the steel shell 200 to slide upward together, so that during the groove rolling process of the steel shell 200, the upper push mechanism 30 presses the steel shell 200 upward and allows the pressed steel shell 200 to slide upward, so as to compensate for the deformation of the steel shell 200 from below; the rotating mechanism 40 drives the hollow shaft 31g to drive the second push rod 31b, the supporting mold seat 31f and the steel shell 200 to rotate together, so as to meet the rotation requirement of the steel shell 200 during the groove rolling process. Specifically, in Figures 3 to 6 ,as well as Figure 8In the embodiment, the rotary driver 31e is a stepping motor to better and accurately control the lifting height of the lifting cam 31d.

[0037] Among them, by means of the cooperation of the first push rod 31a, the second push rod 31b, the anti-rotation guide sleeve 31c, the lifting cam 31d, the rotary driver 31e, the supporting mold seat 31f and the hollow shaft 31g, when the steel shell 200 placed at the supporting mold seat 31f is clamped by the supporting mold seat 31f and the pressing mechanism 20, the hollow shaft 31g is driven by the rotating mechanism 40 to drive the second push rod 31b, the supporting mold seat 31f and the steel shell 200 to rotate together to meet the rotation requirement of the steel shell 200 during the groove rolling process; therefore, during the groove rolling process, the lifting cam 31d is driven by the rotary driver 31e to rotate, and the lifting cam During the rotation, the first push rod 31a, the second push rod 31b, the supporting mold seat 31f and the steel shell 200 are pushed upward to compensate for the deformation of the steel shell 200 from below during the groove rolling process, and the downward pressing mechanism 20 compensates for the deformation of the steel shell 200 from above during the groove rolling process, so that the force on the steel shell 200 is uniform, thereby ensuring the quality of the groove rolling of the steel shell 200; through the lifting cam 31d, the first push rod 31a, the second push rod 31b, the anti-rotation guide sleeve 31c and the supporting mold seat 31f, the structure of the upper push mechanism 30 can be simplified and the reliability of the upper push mechanism 30 can be ensured. In addition, the more detailed structure of the upper push mechanism 30 is described below.

[0038] like Figures 3 to 6 ,as well as Figure 8As shown, the upper lifting mechanism 30 also includes a bearing seat 31h, a circular collar 31m and a roller 31n located directly above the anti-rotation guide sleeve 31c. The bearing seat 31h is fixed to the frame 10, and the frame 10 provides support and assembly space for the bearing seat 31h. When the frame 10 includes a gantry support 12, a horizontal base plate 12, an outer frame 13 and an inner support 14, the bearing seat 31h is fixed to the horizontal base plate 11; a bearing 31i is mounted between the bearing seat 31h and the hollow shaft 31g, and the lower end of the hollow shaft 31g passes through the bearing seat 31h downward, so as to improve the flexibility and smoothness of the rotation of the hollow shaft 31g with the help of the bearing seat 31h and the bearing 31i, on the one hand, to improve the flexibility and smoothness of the rotation of the hollow shaft 31g, and on the other hand, to improve the axial load-bearing capacity of the hollow shaft 31g; the circular collar 31m is in a mating manner. The roller 31n is mounted on the lower end of the first push rod 31a and the lower end of the second push rod 31b, thereby improving the reliability of the rotational cooperation between the first push rod 31a and the second push rod 31b. Of course, the rotational cooperation between the first push rod 31a and the second push rod 31b may also have other structures, so it is not limited to this; the roller 31n is assembled on the lower end of the first push rod 31a and protrudes downward from the first push rod 31a. The roller 31n and the lifting cam 31d are rollingly cooperated. This design enables the lifting cam 31d to lift the first push rod 31a more reliably to slide up and down with the help of the roller 31n, thereby reducing the friction resistance of the lifting cam 31d to the first push rod 31a.

[0039] In addition, Figure 8 As shown, the upper push mechanism 30 also includes a movable head 31j and a spring 31k. The supporting die seat 31f is provided with an movable cavity 311 with the cavity opening facing upward. The movable head 31j can be slidably arranged in the movable cavity 311 along the up-down direction of the frame 10; the spring 31k is located in the movable cavity 311 and is arranged between the movable head 31j and the supporting die seat 31f. The spring 31k always has the tendency to make the movable head 31j slide upward to resist the supporting die seat 31f. This design enables the upper push mechanism 30 to have a buffering function for the upper push of the steel shell 200, thereby avoiding the upper push mechanism 30 from hard pressing on the steel shell 200 and effectively protecting the steel shell 200. Specifically, in Figure 8 In the figure, the movable pin 31j and the supporting die seat 31f are each provided with a matching structure 312 (313), and the spring 30k makes the matching structures 312 (313) of the movable pin 31j and the supporting die seat 31f abut against each other to prevent the movable pin 31j from accidentally falling off from the supporting die seat 31f under the action of the spring 30k.

[0040] like Figure 3As shown, the rotating mechanism 40 includes a rotating motor 41, a driving wheel 42, a driven wheel 43 and a winding transmission member 44. The output shaft 411 of the rotating motor 41 is arranged upward, and of course, it can also be arranged downward according to actual needs; the driving wheel 42 is sleeved on the output shaft 411 of the rotating motor 41, and the output shaft 411 drives the driving wheel 42 to rotate; the driven wheel 43 is sleeved on the position 314 where the hollow shaft 31g passes through the bearing seat 31h, so that the driven wheel 43 and the hollow shaft 31g are fixed together, so that the hollow shaft 31g and the driven wheel 43 rotate together; the winding transmission member 44 is tautly sleeved on the driving wheel 42 and the driven wheel 4 3; Therefore, when the rotating motor 41 drives the driving wheel 42 to rotate through the output shaft 411, the driven wheel 43 and the hollow shaft 31g are driven to rotate together by the transmission member 44, so that the rotating motor 41 drives the hollow shaft 31g to rotate at a distance; because the second push rod 31b rotates with the hollow shaft 31g, the second push rod 31b, the supporting mold seat 31f, the steel shell 200 on the supporting mold seat 31f, the movable push head 31j and the spring 31k rotate together with the hollow shaft 31g. For example, in Figure 1 In the figure, the driving wheel 42 and the driven wheel 43 are each a pulley, and correspondingly, the transmission member 44 is wound around a belt to ensure that the rotating motor 41 can smoothly drive the hollow shaft 31g to rotate. Of course, according to actual needs, the driving wheel 42 and the driven wheel 43 are each a sprocket, and correspondingly, the transmission member 44 is wound around a chain, but it is not limited to this.

[0041] like Figures 3 to 7 As shown, the pressing mechanism 20 includes an electric push rod 21, a pressing head 22 and a buffer spring 23. The output end 211 of the electric push rod 21 is arranged downward; the pressing head 22 can be slidably assembled on the output end 211 of the electric push rod 21 along the up and down direction of the frame 10, and a first blocking structure 2111 is provided on the output end 211 of the electric push rod 21; the buffer spring 23 is arranged between the output end 211 of the electric push rod 21 and the pressing head 22, and the buffer spring 23 always has the tendency to drive the pressing head 21 to slide downward to block the first blocking structure 2111, and the state is shown in FIG. Figure 7 As shown, such a design enables the pressing head 22 to first slide upward for a certain distance and then press against the steel shell 200 when it slides downward to contact the steel shell 200, so that the pressing head 22 has a buffering performance when pressing down on the steel shell 200, thereby improving the reliability of the pressing head 22 pressing down on the steel shell 200.

[0042] In conjunction with the accompanying drawings, the working principle of the cylindrical power battery steel shell groove rolling machine of the present invention is explained: the feeding conveyor line 71 conveys the jig sleeve 300 together with the steel shell 200 to the pushing mechanism 72, and the pushing mechanism 72 sends the jig sleeve 300 together with the steel shell 200 to the upper push mechanism 30, and the upper push mechanism 30 and the lower pressure mechanism 20 jointly clamp the jig sleeve 300 together with the steel shell 200; then, the rotating mechanism 40 drives the steel shell 200 to rotate, and at the same time, the groove rolling wheel 51 of the groove rolling mechanism 50 rolls the groove on the clamped steel shell 200, and the dust suction nozzle 60 sucks away the dust generated in the groove rolling process, so as to achieve the purpose of rolling and sucking; when the steel shell 200 has completed the groove rolling, the lower pressure mechanism 20 is pressed. The structure 20 and the upper push mechanism 30 release the clamping of the jig sleeve 300 together with the steel shell 200, and the pulling mechanism 73 sends the jig sleeve 300 together with the steel shell 200 to the unloading position. At the same time, the pushing mechanism 72 sends the new jig sleeve 300 together with the steel shell 200 delivered by the loading conveyor line 71 to the upper push mechanism 30; and the internal impurities of the steel shell 200 at the unloading position are sucked away by the suction mechanism 76; when the internal impurities are sucked away, the pushing mechanism 74 pushes the steel shell 200 at the unloading position into the unloading conveyor line 75, and is transported outward by the unloading conveyor line 75, thereby realizing the operation process of loading, rolling grooves, removing internal impurities and unloading the same jig sleeve 300 together with the steel shell 200.

[0043] Compared with the prior art, with the help of the upper push mechanism 30 and the dust suction nozzle 60 which is assembled on the groove rolling mechanism 50 and slides with the groove rolling wheel 51 in the groove rolling mechanism 50, when the groove rolling wheel 51 rolls the annular groove 220 on the outer side wall 210 of the port of the steel shell 200 clamped by the upper push mechanism 30 and the lower pressure mechanism 20, the lower pressure mechanism 20 presses the outer side wall 210 of the port of the steel shell 200 downward from the top and bends and deforms the rolled section 211 of the outer side wall 210 of the port, while the upper push mechanism 30 rolls the outer side wall 210 of the port downward from the top and deforms the rolled section 211 of the outer side wall 210 of the port. The outer side wall 210 of the port of the steel shell 200 is pressed upward from below and the rolled section 211 of the outer side wall 210 of the port is bent and deformed, so as to compensate for the deformation of the steel shell 200 from below and above, thereby making the force on the steel shell 200 uniform and ensuring the quality of the rolling grooves of the steel shell 200; at the same time, the dust suction nozzle 60 is arranged around the periphery 511 of the rolling groove wheel 51, and the dust suction nozzle 60 sucks away the dust generated by the rolling groove wheel 51 in the rolling groove, preventing the dust from polluting the working environment and the steel shell 200, thereby ensuring the cleanliness of the steel shell 200.

[0044] It is worth noting that, since the attached figure shows that the steel shell 200 is mounted on the jig sleeve 300 and is transported together with the jig sleeve 300, correspondingly, the upper push mechanism 30 is used to support the jig sleeve 300 and the steel shell 200, that is, the upper push mechanism 30 indirectly supports the steel shell 200, and clamps the jig sleeve 300 and the steel shell 200 together with the downward pressure mechanism 20; when the steel shell 200 is not used in conjunction with the jig sleeve 300, the upper push mechanism 30 at this time directly supports the steel shell 200. In addition, in order to make the grooved wheel 51 work more reliably, a peristaltic pump 80 is installed on the horizontal substrate 11, and the oil drip nozzle 81 of the peristaltic pump 80 corresponds to the rolling center of the grooved wheel 51, as shown in the state. Fig. 9 In addition, the dust nozzle 60 needs to be connected to the external negative pressure pump when working; similarly, the suction mechanism 76 also needs to make the vacuum pipe 762 connected to the external negative pressure pump when working; furthermore, the loading conveyor line 71 and the unloading conveyor line 75 are belt conveyor lines; then, since the structure of the groove rolling mechanism 50 is a well-known structure in the art, it will not be described here; finally, the positions of the X-axis and the Y-axis in the drawings can be interchanged, so it is not limited to the drawings.

[0045] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A cylindrical power battery steel shell groove rolling machine, suitable for rolling a circular groove on the outer side wall of the port of the cylindrical power battery steel shell, comprising a frame and a pressing mechanism, a rotating mechanism and a groove rolling mechanism assembled on the frame, characterized in that: The cylindrical power battery steel shell groove rolling machine also includes an upper push mechanism located directly below the lower pressure mechanism and used to carry the steel shell from below, and a dust suction nozzle installed on the groove rolling mechanism, the upper push mechanism is installed on the frame, the lower pressure mechanism presses down the steel shell at the upper push mechanism from above and clamps the steel shell together with the upper push mechanism, the groove rolling wheel in the groove rolling mechanism is located on the side of the upper push mechanism, the dust suction nozzle is located on the side of the groove rolling wheel and follows the groove rolling wheel to slide horizontally to or away from the steel shell clamped by the upper push mechanism and the lower pressure mechanism. At the position where the steel shell contacts, the dust suction nozzle is also arranged around the periphery of the groove rolling wheel; wherein, in the process of the groove rolling wheel rolling out the annular groove on the outer side wall of the port of the steel shell clamped by the upper push mechanism and the lower pressure mechanism, the lower pressure mechanism presses the outer side wall of the port of the steel shell downward from the top and bends and deforms the rolled section of the outer side wall of the port, while the upper push mechanism presses the outer side wall of the port of the steel shell upward from the bottom and bends and deforms the rolled section of the outer side wall of the port, and the dust suction nozzle sucks away the dust generated by the groove rolling wheel in the rolling groove; Wherein, the lifting mechanism comprises a first push rod, a second push rod, an anti-rotation guide sleeve, a lifting cam, a rotating driver, a supporting mold base for supporting the steel shell and a hollow shaft, the hollow shaft is axially fixedly installed on the frame and can rotate relative to the frame, the anti-rotation guide sleeve is located directly below the hollow shaft and fixed to the frame, the first push rod slides through the anti-rotation guide sleeve along the up and down direction of the frame, the anti-rotation guide sleeve also blocks the first push rod from rotating relative to the anti-rotation guide sleeve, the second push rod can slide through the hollow shaft along the up and down direction of the frame and can rotate with the The lower end of the second push rod rotates relative to the frame together with the hollow shaft, and the upper end of the first push rod is rotationally matched. The upper end of the second push rod is assembled and connected with the supporting mold seat. The lifting cam is located directly below the first push rod and pushes with the lower end of the first push rod. The rotary driver is installed on the frame and drives the lifting cam to rotate. During the rotation process, the lifting cam pushes the first push rod, the second push rod, the supporting mold seat and the steel shell to slide upward together. The rotating mechanism drives the hollow shaft to drive the second push rod, the supporting mold seat and the steel shell to rotate together. The lifting mechanism also includes a movable ram and a spring. The supporting mold seat is provided with a movable cavity with the cavity opening facing upward. The movable ram can be slidably arranged in the movable cavity along the up and down directions of the frame. The spring is located in the movable cavity and is arranged between the movable ram and the supporting mold seat. The spring always has a tendency to make the movable ram slide upward to resist the supporting mold seat.

2. The cylindrical power battery steel shell groove rolling machine according to claim 1, characterized in that: The machine also includes a loading conveyor line, a pushing mechanism, a pulling mechanism, a lifting mechanism, a unloading conveyor line and a suction mechanism assembled on the frame, wherein the loading conveyor line and the unloading conveyor line are both located on one side of the lifting mechanism, and the grooving mechanism is located on the other side opposite to the lifting mechanism. The loading conveyor line and the unloading conveyor line are arranged side by side and separated along the X-axis direction. The loading conveyor line and the unloading conveyor line also extend horizontally along the Y-axis direction. The grooving mechanism is staggered with the loading conveyor line and the unloading conveyor line respectively along the X-axis direction. The pushing mechanism is located between the loading conveyor line and the grooving mechanism along the Y-axis direction. The pushing mechanism is used to push the jig sleeve and the steel on the jig sleeve conveyed by the loading conveyor line The steel shell is sent to the upper pushing mechanism along the X-axis direction, the pulling mechanism is located between the unloading conveyor line and the grooving mechanism along the Y-axis direction and faces the pushing mechanism, the pulling mechanism is used to pull the fixture sleeve at the upper pushing mechanism together with the steel shell to a unloading position along the X-axis direction, the suction mechanism is located directly above the steel shell at the unloading position, the pulling mechanism is also used to suck away impurities in the steel shell at the unloading position, the pushing mechanism is located at the corner sandwiched by the grooving mechanism and the pulling mechanism, the pushing mechanism is used to push the fixture sleeve and the steel shell at the unloading position into the unloading conveyor line along the Y-axis direction, and the grooving wheel of the grooving mechanism slides along the Y-axis direction.

3. The cylindrical power battery steel shell groove rolling machine according to claim 2, characterized in that: The pushing mechanism, pulling mechanism and ejecting mechanism each include a cylinder and a ejecting block assembled and connected to the output end of the cylinder, the ejecting block has an arc structure matching the steel shell, and a magnet is also embedded on the ejecting block for making the steel shell abut against the arc structure; the suction mechanism includes upper and lower cylinders, a vacuum pipe and a vacuum sleeve connected to the vacuum pipe, the output ends of the upper and lower cylinders are arranged downward, the vacuum pipe extends along the up and down directions of the frame, the upper end of the vacuum pipe is also assembled and connected to the output ends of the upper and lower cylinders, the vacuum sleeve is installed on the lower end of the vacuum pipe, and the vacuum sleeve is cooperatively mounted on the outside of the steel shell in the unloading position during the process of the upper and lower cylinders driving the vacuum pipe to slide downward.

4. The cylindrical power battery steel shell groove rolling machine according to claim 2, characterized in that: The frame includes a horizontal base plate, a gantry bracket assembled on the horizontal base plate from above the horizontal base plate, an outer frame supporting the horizontal base plate from below the horizontal base plate, and an inner bracket located in the outer frame and assembled on the horizontal base plate from below the horizontal base plate, the outer frame is also assembled and connected to the horizontal base plate, the pressing mechanism and the suction mechanism are assembled on the gantry bracket, the loading conveyor line, the pushing mechanism, the pulling mechanism, the lifting mechanism, the unloading conveyor line and the rolling groove mechanism are each assembled on the horizontal base plate, and the lifting mechanism is assembled on the horizontal base plate and the inner bracket at the same time.

5. The cylindrical power battery steel shell groove rolling machine according to claim 1, characterized in that: The lifting mechanism also includes a bearing seat, a circular ring and a roller located directly above the anti-rotation guide sleeve. The bearing seat is fixed to the frame. A bearing is mounted between the bearing seat and the hollow shaft. The lower end of the hollow shaft passes downward through the bearing seat. The circular ring is fitted on the upper end of the first push rod and the lower end of the second push rod in a matching manner. The roller is assembled on the lower end of the first push rod and protrudes downward from the first push rod. The roller is rollingly matched with the lifting cam.

6. The cylindrical power battery steel shell groove rolling machine according to claim 1, characterized in that: The movable ejector head and the supporting die seat are each provided with a matching structure, and the spring causes the matching structures of the movable ejector head and the supporting die seat to abut against each other.

7. The cylindrical power battery steel shell groove rolling machine according to claim 5, characterized in that: The rotating mechanism includes a rotating motor, a driving wheel, a driven wheel and a winding transmission member. The output shaft of the rotating motor is arranged upward or downward, the driving wheel is mounted on the output shaft of the rotating motor, the driven wheel is mounted on the position where the hollow shaft passes through the bearing seat, and the winding transmission member is tightly mounted on the driving wheel and the driven wheel.

8. The cylindrical power battery steel shell groove rolling machine according to claim 1, characterized in that: The pressing mechanism includes an electric push rod, a pressing head and a buffer spring. The output end of the electric push rod is arranged downward, and the pressing head can be slidably assembled on the output end of the electric push rod along the up and down directions of the frame. A first blocking structure is provided on the output end of the electric push rod. The buffer spring is provided between the output end of the electric push rod and the pressing head. The buffer spring always has a tendency to drive the pressing head to slide downward until it is blocked by the first blocking structure.

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