Cap welding and embossing all-in-one machine for assembling large cylindrical battery

Abstract

The invention relates to the related technical field of combined processing machine tools, in particular to a cap welding and embossing all-in-one machine for assembling a large cylindrical battery, which comprises a base, a cap blank feeding conveyor, a cap forming mechanism, a welding mechanism, a cylindrical battery main body feeding conveyor and a cylindrical battery discharging conveyor, a walking track is fixedly installed on the base through a track support. A lower forming die is composed of a lower die body, a movable lower die body and a first-stage reset spring in a combined mode, an upper forming die is composed of an upper die body, a movable upper die body and a second-stage reset spring in a combined mode, and a corrugated pipe mounting groove, a main air cavity, a connecting air channel, an annular air cavity, an air hole and an adsorption groove are formed in the movable upper die body. The nut cap forming mechanism can take out the nut cap while rolling and forming the nut cap, so that the two steps are completed synchronously, the working efficiency is effectively improved, a driving structure of the device can be reduced, and a worker can conveniently carry out circuit maintenance on equipment.

Description

Technical Field

[0001] The invention relates to the technical field related to combined processing machine tools, and in particular to a cap welding and embossing integrated machine for assembling large cylindrical batteries. Background Art

[0002] The existing Chinese patent document with announcement number CN206936819U discloses a lithium battery cap welding and embossing integrated machine, which includes a feed vibration plate, a feed track, a rotary worktable, a feed station, a compaction station, a welding station, an embossing station, an alcohol tank, a discharge station and a discharge track. The feed vibration plate is connected to one end of the feed track. The outer periphery of the rotary worktable is provided with a feed station, a compaction station, a welding station, an embossing station and a discharge station in sequence. A plurality of work seats are evenly distributed on the circumference of the rotary worktable. The feed station is arranged at the other end of the feed track. The feed station is a feed suction cup cylinder corresponding to the other end of the feed track and the work seat for feeding, lifting and placing the feed. There is a through hole in the middle of the work seat. A support rod is arranged in the through hole, the upper end of the support rod is arranged in the through hole, the lower end of the support rod is arranged under the rotary worktable and is elastically connected to the bottom of the rotary worktable via a spring, the compaction station is a lifting compaction cylinder with a pressure head, the welding station is an ultrasonic welding device or a laser welding device, the embossing station is a lifting embossing cylinder with an embossing die head, the alcohol tank rack is connected to the embossing die head through an infusion pipe with a flow rate regulator, and the infusion is cut off when the embossing die head retracts, and the alcohol is connected to the side wall or the upper end face of the embossing die head when the embossing die head is pressed down, and the unloading station includes a discharge suction cup cylinder for feeding, lifting and placing the discharge between the corresponding working seat and the discharge track, and a discharge cylinder placed under the working seat corresponding to the lifting and pushing support rod; However, the welding and embossing steps in the above scheme are performed independently, so the equipment requires two relatively opposing systems, which leads to more power structure requirements for the equipment and is inconvenient for staff to perform daily inspection and maintenance. For this reason, the present invention proposes a cap welding and embossing integrated machine for large cylindrical battery assembly to solve the above problem. Summary of the invention

[0003] The object of the present invention is to provide a cap welding and embossing integrated machine for assembling large cylindrical batteries to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a cap welding and embossing integrated machine for large cylindrical battery assembly, comprising: A base, on which a running track is fixedly installed through a track bracket, and a first-level track trolley is installed for running on the running track; A cap blank feeding conveyor, wherein the cap plate feeding conveyor is used to feed the cap blank; A cap forming mechanism, which is arranged on the right side of the cap blank feeding conveyor and is used to process the cap blank into a cap, and comprises a lower forming die, a forming hydraulic mechanism and an upper forming die; A welding mechanism, which is arranged on the right side of the cap forming mechanism, and includes a disc track, a bearing seat, a triangular chuck, a second track trolley and a welding robot; A cylindrical battery body feeding conveyor, wherein the cylindrical battery body feeding conveyor is used to feed the cylindrical battery body; A cylindrical battery unloading conveyor, wherein the cylindrical battery unloading conveyor is used to unload the cylindrical battery unloading conveyor; A loading and unloading robot is installed at the edge of the disc track, and the loading and unloading robot is used to clamp the cylindrical battery body on the cylindrical battery body loading conveyor to the triangular chuck, and clamp the welded cylindrical battery to the cylindrical battery unloading conveyor.

[0005] Preferably, the disc track is fixedly mounted on the base, the bearing seat is fixedly mounted at the center position of the disc track, the triangular chuck is fixedly mounted on the upper side end of the bearing seat, the second track trolley is mounted on the disc track, the welding robot is mounted on the second track trolley, and the welding robot is used to weld the cap to the cylindrical battery body.

[0006] Preferably, the molding lower mold includes a lower mold body, a movable lower mold body and a primary return spring. The lower mold body is fixedly mounted on the base, and the upper end surface of the lower mold body is provided with a primary movable cavity. The movable lower mold body is movably arranged in the primary movable cavity, and the lower end surface of the movable lower mold body is provided with a primary spring groove. The two ends of the primary return spring are respectively connected to the bottom of the primary spring groove and the bottom of the primary movable cavity, the molding hydraulic mechanism and the molding upper mold.

[0007] Preferably, the left end of the lower mold body is flush with the right end of the conveying belt on the cap blank feeding conveyor, and when the first-level reset spring is in the reset state, the upper end surface of the movable lower mold body is flush with the upper end surface of the lower mold body, and a first-level guide strip is provided at the tail of the bracket of the cap blank feeding conveyor, the end size of the first-level guide strip matches the size of the cap blank, and the lower end surface of the first-level guide strip is arranged in contact with the lower mold body.

[0008] Preferably, the rear part of the bracket of the cylindrical battery body feeding conveyor is fixedly connected to a loading plate, and a secondary guide bar is fixedly connected to the loading plate, and the end size of the secondary guide bar matches the size of the cylindrical battery body. Infrared sensors are provided at the position of the primary guide bar on the cap blank feeding conveyor and at the position of the secondary guide bar on the cylindrical battery body feeding conveyor, and the infrared sensors are electrically connected to the control module of the device.

[0009] Preferably, the cylinder body of the molding hydraulic mechanism is fixedly connected to the primary rail trolley, the molding upper mold includes an upper mold body, a movable upper mold body and a secondary return spring, the upper mold body is connected to the telescopic part of the molding hydraulic mechanism, and the lower end surface of the upper mold body is provided with a secondary active cavity, the movable upper mold body is movably arranged in the secondary active cavity, and the upper end surface of the movable upper mold body is provided with a secondary spring groove, and the two ends of the secondary return spring are respectively fixedly connected to the bottom of the secondary spring groove and the bottom of the secondary active cavity.

[0010] Preferably, a bellows mounting groove is provided on the upper end surface of the movable upper mold body, a main air cavity is provided at the bottom of the bellows mounting groove, a connecting air channel is provided on the side of the main air cavity, an annular air cavity is formed in the middle part of the movable upper mold body, and the connecting air channel is connected to the annular air cavity.

[0011] Preferably, an adsorption groove is provided on the lower end surface of the movable upper mold body, and the adsorption groove is arranged in a circle, and the adsorption grooves are connected to the annular air cavity through air holes, and a gas flow channel is provided on the upper mold body, and the gas flow channel is integrally formed with a pipe connecting port at the port on the side wall of the upper mold body, and the pipe connecting port is connected to the exhaust equipment on the first-level rail trolley through an exhaust pipe, and the port of the gas flow channel located on the bottom surface of the secondary active cavity is connected to the upper port of the main air cavity through a bellows.

[0012] Preferably, when the primary track trolley moves along the travel track, the upper forming mold passes directly above the lower forming mold and the triangular chuck.

[0013] Preferably, when the secondary reset spring is in a reset state, the lower end surface of the movable upper mold body is lower than the lower end surface of the upper mold body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. A cap welding and embossing integrated machine for assembling large cylindrical batteries is provided, which is composed of a base, a cap blank feeding conveyor, a cap forming mechanism, a welding mechanism, a cylindrical battery body feeding conveyor and a cylindrical battery unloading conveyor. The cap forming mechanism is provided to be composed of a forming lower die, a forming hydraulic mechanism and a forming upper die, and the forming lower die is provided to be composed of a lower die body, a movable lower die body and a primary return spring, and the forming upper die is provided to be composed of an upper die body, a movable upper die body and a secondary return spring, and a bellows installation groove, a main air cavity, a connecting air channel, an annular air cavity, an air hole and an adsorption groove are provided on the movable upper die body, so that the cap forming mechanism can roll and form the cap while taking the cap, so that the two steps are completed simultaneously, thereby effectively improving the work efficiency, and reducing the driving structure of the device, which is convenient for the staff to perform circuit maintenance on the equipment; 2. And ensure that when the secondary reset spring is in the reset state, the lower end surface of the movable upper mold body is lower than the lower end surface of the upper mold body, so that the forming hydraulic mechanism allows the movable upper mold body to contact the cap blank first during the downward pressing process, so that the cap blank can be adsorbed and positioned by the adsorption groove before the forming upper mold realizes rolling forming of the cap blank, so as to avoid position deviation of the cap blank during the rolling process, thereby ensuring the forming accuracy of the cap and effectively improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle; Figure 4 A half-section view of the lower molding die of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the structure at C in the middle; Figure 6 for Figure 5 A magnified schematic diagram of the structure at D in the middle; Figure 7 for Figure 6 The enlarged schematic diagram of the structure at E in the middle; Figure 8 It is a schematic diagram of the connection between the upper mold body and the movable upper mold body of the present invention; Fig. 9 for Figure 8 Enlarged schematic diagram of the structure at F in the middle.

[0016] In the figure: base 1, cap blank feeding conveyor 2, cap forming mechanism 3, welding mechanism 4, cylindrical battery body feeding conveyor 5, cylindrical battery unloading conveyor 6, cap 7, cylindrical battery body 8, track bracket 9, walking track 10, primary track trolley 11, forming lower mold 12, forming hydraulic mechanism 13, forming upper mold 14, disc track 15, bearing seat 16, triangular chuck 17, second track trolley 18, welding robot 19, loading and unloading manipulator 20, lower mold body 21, movable lower mold body 22, primary return spring 23, upper mold body 24, movable upper mold body 25, secondary return spring 26, secondary spring groove 27, bellows mounting groove 28, main air cavity 29, connecting air channel 30, annular air cavity 31, air hole 32, adsorption groove 33, bellows 34, pipeline connection port 35, primary guide strip 36, carrier plate 37, secondary guide strip 38, gas flow channel 39. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-9 The present invention provides the following two preferred embodiments: Embodiment 1: A cap welding and embossing integrated machine for assembling large cylindrical batteries, comprising a base 1, a cap blank feeding conveyor 2, a cap forming mechanism 3, a welding mechanism 4, a cylindrical battery body feeding conveyor 5 and a cylindrical battery unloading conveyor 6, a travel track 10 is fixedly installed on the base 1 through a track bracket 9, a first-level track trolley 11 is installed on the travel track 10, the cap plate feeding conveyor 2 is used to feed the cap blank, the cap forming mechanism 3 is arranged on the right side of the cap blank feeding conveyor 2, and the cap forming mechanism 3 is used to process the cap blank into a cap 7, and the cap forming mechanism 3 includes a molding lower mold 12, a molding hydraulic mechanism 13 and The upper forming mold 14 and the welding mechanism 4 are arranged on the right side of the cap forming mechanism 3, and the welding mechanism 4 includes a disc track 15, a supporting seat 16, a triangular chuck 17, a second track trolley 18 and a welding robot 19, the cylindrical battery body loading conveyor 5 is used to load the cylindrical battery body 8, and the cylindrical battery unloading conveyor 6 is used to unload the cylindrical battery unloading conveyor 6. A loading and unloading manipulator 20 is installed at the edge of the disc track 15, and the loading and unloading manipulator 20 is used to clamp the cylindrical battery body 8 on the cylindrical battery body loading conveyor 5 to the triangular chuck 17, and clamp the welded cylindrical battery to the cylindrical battery unloading conveyor 6.

[0019] The disc track 15 is fixedly mounted on the base 1, the bearing seat 16 is fixedly mounted at the center position of the disc track 15, the triangular chuck 17 is fixedly mounted on the upper side end of the bearing seat 16, the second track trolley 18 is moved and mounted on the disc track 15, the welding robot 19 is mounted on the second track trolley 18, and the welding robot 19 is used to weld the cap 7 to the cylindrical battery body 8, the molding lower mold 12 includes a lower mold body 21, a movable lower mold body 22 and a primary return spring 23, the lower mold body 21 is fixedly mounted on the base 1, and the upper end surface of the lower mold body 21 is provided with a primary active cavity, the movable lower mold body 22 is movably arranged in the primary active cavity, and the lower end surface of the movable lower mold body 22 is provided with a primary spring groove, and the two ends of the primary return spring 23 are respectively connected to the bottom of the primary spring groove and the bottom of the primary active cavity, the molding hydraulic mechanism 13 and the molding upper mold 14.

[0020] The left end of the lower mold body 21 is flush with the right end of the conveying belt on the cap blank feeding conveyor 2. When the primary reset spring 23 is in the reset state, the upper end surface of the movable lower mold body 22 is flush with the upper end surface of the lower mold body 21. The tail of the bracket of the cap blank feeding conveyor 2 is provided with a primary guide bar 36. The end size of the primary guide bar 36 matches the size of the cap blank, and the lower end surface of the primary guide bar 36 is arranged in contact with the lower mold body 21. The tail of the bracket of the cylindrical battery body feeding conveyor 5 is fixedly connected with a loading plate 37, and the loading plate 37 is fixedly connected with a secondary guide bar 38. The end size of the secondary guide bar 38 is The size matches the size of the cylindrical battery body 8. Infrared sensors are provided at the position of the first-level guide bar 36 on the cap blank feeding conveyor 2 and at the position of the second-level guide bar 38 on the cylindrical battery body feeding conveyor 5, and the infrared sensors are connected with the electrical signals of the control module of the equipment. The first-level guide bar 36 and the second-level guide bar 38 are provided to facilitate the alignment of the cap blank and the cylindrical battery body 8. The infrared sensors are provided to control the start and stop of the cap blank feeding conveyor 2 and the cylindrical battery body feeding conveyor 5, so as to avoid the cap blanks and the cylindrical battery body 8 from piling up and affecting the material taking.

[0021] The cylinder body of the molding hydraulic mechanism 13 is fixedly connected to the primary rail trolley 11, and the molding upper mold 14 includes an upper mold body 24, a movable upper mold body 25 and a secondary return spring 26. The upper mold body 24 is connected to the telescopic part of the molding hydraulic mechanism 13, and the lower end surface of the upper mold body 24 is provided with a secondary active cavity, the movable upper mold body 25 is movably arranged in the secondary active cavity, and the upper end surface of the movable upper mold body 25 is provided with a secondary spring groove 27, and the two ends of the secondary return spring 26 are respectively fixedly connected to the bottom of the secondary spring groove 27 and the bottom of the secondary active cavity, a bellows mounting groove 28 is provided on the upper end surface of the movable upper mold body 25, and a main air cavity 29 is provided at the bottom of the bellows mounting groove 28, and a connecting air channel 30 is provided on the side of the main air cavity 29, and an annular air cavity 31 is formed in the middle of the movable upper mold body 25, and the connecting air channel 30 is connected to the annular air cavity 31.

[0022] The lower end surface of the movable upper mold body 25 is provided with an adsorption groove 33, and the adsorption groove 33 is arranged in a circle, and the adsorption grooves 33 are connected to the annular air cavity 31 through the air hole 32, and the upper mold body 24 is provided with a gas flow channel 39, and the gas flow channel 39 is located at the port on the side wall of the upper mold body 24, and a pipe connecting port 35 is integrally formed, and the pipe connecting port 35 is connected to the exhaust device on the primary rail trolley 11 through an exhaust pipe, and the port of the gas flow channel 39 located on the bottom surface of the secondary active cavity is connected to the upper side port of the main air cavity 29 through a bellows 34, and a large cylindrical battery assembly cap welding and embossing integrated machine composed of a base 1, a cap blank feeding conveyor 2, a cap forming mechanism 3, a welding mechanism 4, a cylindrical battery body feeding conveyor 5 and a cylindrical battery unloading conveyor 6 is provided, and By configuring the cap forming mechanism 3 to be composed of a forming lower mold 12, a forming hydraulic mechanism 13 and a forming upper mold 14, and configuring the forming lower mold 12 to be composed of a lower mold body 21, a movable lower mold body 22 and a primary return spring 23, and configuring the forming upper mold 14 to be composed of an upper mold body 24, a movable upper mold body 25 and a secondary return spring 26, and arranging a bellows mounting groove 28, a main air cavity 29, a connecting air channel 30, an annular air cavity 31, an air hole 32 and an adsorption groove 33 on the movable upper mold body 25, the cap forming mechanism 3 can roll the cap 7 while taking the material of the cap 7, so that the two steps can be completed simultaneously, thereby effectively improving the work efficiency, and reducing the driving structure of the device, which is convenient for the staff to perform circuit maintenance on the equipment.

[0023] Embodiment 2: When the primary rail trolley 11 moves along the travel rail 10 , the upper forming mold 14 passes right above the lower forming mold 12 and the triangular chuck 17 .

[0024] On the basis of the first embodiment, when the secondary reset spring 26 is in the reset state, the lower end surface of the movable upper mold body 25 is lower than the lower end surface of the upper mold body 24 .

[0025] Working principle: During actual processing, the cap blank is transported to the position of the lower molding die 12 through the cap blank loading conveyor 2, and when the first-level rail trolley 11 moves to the top of the lower molding die 12, the molding hydraulic mechanism 13 moves in the process, thereby driving the upper mold body 24 to press down, and the vacuum equipment is running at the same time, so as to position the cap blank. After the cap 7 is formed, the molding hydraulic mechanism 13 will lift the cap 7 during the return movement, and then move it to the position of the triangular chuck 17 through the first-level rail trolley 11 to wait for the welding of the previous cap 7 to be completed. After welding is completed, the loading and unloading manipulator 20 removes the welded workpiece from the triangular chuck 17, and places the next battery to be welded on the triangular chuck 17. At the same time, the molding hydraulic mechanism 13 moves in the process and presses down to place the cap 7 on the battery to be welded, and then the molding hydraulic mechanism 13 returns and forms the next cap blank. At the same time, the welding robot 19 performs the welding process on the cap 7.

[0026] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A cap welding and embossing integrated machine for large cylindrical battery assembly, characterized in that: include: A base (1), a running track (10) being fixedly mounted on the base (1) via a track bracket (9), and a first-level track trolley (11) being mounted on the running track (10); A cap blank feeding conveyor (2), wherein the cap plate feeding conveyor (2) is used to feed the cap blank; A cap forming mechanism (3), the cap forming mechanism (3) being arranged on the right side of the cap blank feeding conveyor (2), and the cap forming mechanism (3) being used to process the cap blank into a cap (7), the cap forming mechanism (3) comprising a forming lower die (12), a forming hydraulic mechanism (13) and a forming upper die (14); A welding mechanism (4), the welding mechanism (4) being arranged on the right side of the cap forming mechanism (3), and comprising a disc-shaped track (15), a bearing seat (16), a triangular chuck (17), a second track trolley (18) and a welding robot (19); A cylindrical battery body feeding conveyor (5), wherein the cylindrical battery body feeding conveyor (5) is used to feed the cylindrical battery body (8); A cylindrical battery unloading conveyor (6), wherein the cylindrical battery unloading conveyor (6) is used to unload the cylindrical battery unloading conveyor (6); A loading and unloading manipulator (20) is installed at the edge of the disc-shaped track (15), and the loading and unloading manipulator (20) is used to clamp the cylindrical battery body (8) on the cylindrical battery body loading conveyor (5) onto the triangular chuck (17), and to clamp the welded cylindrical battery onto the cylindrical battery unloading conveyor (6).

2. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 1, characterized in that: The disc-shaped track (15) is fixedly mounted on the base (1), the bearing seat (16) is fixedly mounted at the center of the disc-shaped track (15), the triangular chuck (17) is fixedly mounted on the upper side end of the bearing seat (16), the second track trolley (18) is mounted on the disc-shaped track (15), the welding robot (19) is mounted on the second track trolley (18), and the welding robot (19) is used to weld the cap (7) to the cylindrical battery body (8).

3. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 2, characterized in that: The molding lower mold (12) comprises a lower mold body (21), a movable lower mold body (22) and a primary return spring (23); the lower mold body (21) is fixedly mounted on the base (1); a primary movable cavity is provided on the upper end surface of the lower mold body (21); the movable lower mold body (22) is movably arranged in the primary movable cavity; a primary spring groove is provided on the lower end surface of the movable lower mold body (22); two ends of the primary return spring (23) are respectively connected to the bottom of the primary spring groove and the bottom of the primary movable cavity, the molding hydraulic mechanism (13) and the molding upper mold (14).

4. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 3, characterized in that: The left end of the lower die body (21) is flush with the right end of the conveying belt on the cap blank feeding conveyor (2); when the primary return spring (23) is in the return state, the upper end surface of the movable lower die body (22) is flush with the upper end surface of the lower die body (21); a primary guide bar (36) is provided at the tail of the bracket of the cap blank feeding conveyor (2); the end size of the primary guide bar (36) matches the size of the cap blank, and the lower end surface of the primary guide bar (36) is arranged to fit the lower die body (21).

5. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 4, characterized in that: A carrier plate (37) is fixedly connected to the rear of the bracket of the cylindrical battery body feeding conveyor (5), and a secondary guide bar (38) is fixedly connected to the carrier plate (37), and the end size of the secondary guide bar (38) matches the size of the cylindrical battery body (8). Infrared sensors are provided at the position of the primary guide bar (36) on the cap blank feeding conveyor (2) and at the position of the secondary guide bar (38) on the cylindrical battery body feeding conveyor (5), and the infrared sensors are connected to the control module of the device via electrical signals.

6. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 5, characterized in that: The cylinder of the molding hydraulic mechanism (13) is fixedly connected to the primary rail trolley (11); the molding upper mold (14) comprises an upper mold body (24), a movable upper mold body (25) and a secondary return spring (26); the upper mold body (24) is connected to the telescopic portion of the molding hydraulic mechanism (13); a secondary active cavity is provided on the lower end surface of the upper mold body (24); the movable upper mold body (25) is movably arranged in the secondary active cavity; a secondary spring groove (27) is provided on the upper end surface of the movable upper mold body (25); and two ends of the secondary return spring (26) are respectively fixedly connected to the bottom of the secondary spring groove (27) and the bottom of the secondary active cavity.

7. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 6, characterized in that: The upper end surface of the movable upper mold body (25) is provided with a bellows installation groove (28), the bottom of the bellows installation groove (28) is provided with a main air cavity (29), the side of the main air cavity (29) is provided with a connecting air channel (30), and the middle part of the movable upper mold body (25) is formed with an annular air cavity (31), and the connecting air channel (30) is connected to the annular air cavity (31).

8. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 7, characterized in that: The lower end surface of the movable upper mold body (25) is provided with an adsorption groove (33), the adsorption grooves (33) are arranged in a circle, and the adsorption grooves (33) are connected to the annular air cavity (31) through the air holes (32), and the upper mold body (24) is provided with a gas flow channel (39), and the gas flow channel (39) is integrally formed with a pipe connection port (35) at the port located on the side wall of the upper mold body (24), and the pipe connection port (35) is connected to the exhaust device on the primary rail trolley (11) through the exhaust pipe, and the port of the gas flow channel (39) located on the bottom surface of the secondary movable cavity is connected to the upper side port of the main air cavity (29) through the bellows (34).

9. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 8, characterized in that: When the primary track trolley (11) moves along the travel track (10), the upper forming mold (14) passes directly above the lower forming mold (12) and the triangular chuck (17).

10. The large cylindrical battery assembly cap welding and embossing integrated machine according to claim 9, characterized in that: When the secondary return spring (26) is in a return state, the lower end surface of the movable upper mold body (25) is lower than the lower end surface of the upper mold body (24).

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