CN116061048A

CN116061048A - Storage battery shell fixing device

Info

Publication number: CN116061048A
Application number: CN202211599504.0A
Authority: CN
Inventors: 王忠奎; 周平
Original assignee: Qidong Hengrui Power Supply Technology Co ltd
Current assignee: Qidong Hengrui Power Supply Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-05-05
Also published as: CN114770294A; CN114770294B

Abstract

The invention relates to a storage battery shell fixing device which comprises a workbench, wherein a mounting frame is fixedly connected to the workbench, a telescopic mechanism is mounted on the mounting frame, the output end of the telescopic mechanism is fixedly connected with a fixing frame, a supporting cylinder for supporting a shell workpiece is arranged on the workbench, an inner cavity is formed in the supporting cylinder, the workbench is connected with a fixing mechanism, the fixing mechanism comprises a driving assembly, a first communication pipe and a fixing assembly, the input end of the driving assembly is connected to the outer side of the fixing frame, the output end of the driving assembly is connected with the first communication pipe, the output end of the first communication pipe is connected with the fixing assembly, the fixing assembly is connected to the supporting cylinder, a side bracket drives a sealing piston to compress air at the bottom of the first cylinder through a pressure rod, and a plurality of piston rods outwards move under the action of air pressure to form a comprehensive and uniform supporting and fixing effect on the inner circumference side of the shell.

Description

Storage battery shell fixing device

The application is a divisional application of the application number 2022104623491 and the application date 2022, 04 and 28, and the invention name is a pneumatic fixed type storage battery shell polishing device.

Technical Field

The invention relates to the technical field of storage battery production devices, in particular to a storage battery shell fixing device.

Background

The storage battery shell is one of the component parts of the storage battery and is used for containing the electrolyte and the polar plate group, and the existing storage battery shell generally adopts an acid-resistant and heat-resistant plastic shell. In the process of processing the plastic shell, polishing is needed, but in the process of polishing the storage battery shell, the two sides of the shell are generally clamped and fixed in a squeezing mode through the clamping mechanism, when the shell is fixed in the mode, the acting force on the shell is uneven, and the shell is easy to deform; and the fixing mode of the shell is single, and a comprehensive and effective fixing effect cannot be formed on the shell. In addition, in the polishing process of the shell, the scraps generated by polishing cannot be cleaned in time, and the polishing effect of the polishing block on the shell is easily affected.

Disclosure of Invention

The invention provides a storage battery shell fixing device which is used for solving the problem that the shell is easy to deform due to uneven acting force on the shell in the mode of clamping and fixing two sides of the shell in an extrusion mode through a clamping mechanism in the prior art.

The invention relates to a storage battery shell fixing device which adopts the following technical scheme:

the utility model provides a battery case fixing device, includes the workstation, fixedly connected with mounting bracket on the workstation, install telescopic machanism on the mounting bracket, telescopic machanism output fixedly connected with mount, be equipped with the support section of thick bamboo that is used for supporting the shell work piece on the workstation, the inner chamber has been seted up in the support section of thick bamboo, be connected with fixed establishment on the workstation, fixed establishment includes actuating assembly, first communicating pipe and fixed subassembly, the actuating assembly input is connected in the mount outside, and the output is connected with first communicating pipe, first communicating pipe output is connected with fixed subassembly, fixed subassembly is connected on the support section of thick bamboo; the driving assembly comprises a side bracket, a compression bar, a first air cylinder, a second air cylinder, a sealing piston and a reset spring, wherein the two side brackets are fixedly connected to two sides of a fixing frame, the compression bar is fixedly connected to one end far away from the fixing frame, the first air cylinder and the second air cylinder are fixedly connected to a workbench, the first air cylinder and the second air cylinder are positioned outside two sides of a supporting disc, the sealing piston is hermetically and slidingly connected to the inside of the first air cylinder and the second air cylinder, the bottom ends of the two compression bars respectively penetrate through the first air cylinder and the second air cylinder in a sealing manner and are abutted against the upper surface of the sealing piston, the lower surface of the sealing piston is fixedly connected with the reset spring, one end far away from the sealing piston is fixedly connected to the inner bottoms of the first air cylinder and the second air cylinder respectively, the input end of the first communication pipe is communicated to the bottom of the first air cylinder, and the fixing frame moves through the side brackets and the piston rod to drive the two sealing pistons to downwards slide in the first air cylinder and the second air cylinder in a sealing manner, so that a negative pressure space is formed at the top of the first air cylinder and the second air cylinder, and a high pressure space is formed at the bottom of the first air cylinder, and power is provided for the action of subsequent parts; the fixed subassembly is including sealed ring canal, fixed pipe, piston rod and fixed spring, sealed ring canal coaxial seal rotates to be connected at the outer periphery side of spliced pole bottom, and communicates with the inner chamber, first communication pipe output and sealed ring canal intercommunication, it has a plurality of fixed pipes to rotate pole top periphery side intercommunication, a plurality of equal sealing sliding connection has the piston rod in the fixed pipe, equal fixedly connected with fixed spring between piston rod and the fixed pipe, a plurality of the piston rod is kept away from and is rotated pole one end and all supports and lean on and wait to polish the shell inboard, forms even support fixed effect to the shell inner periphery side, improves the stability when the shell is polished.

Preferably, a plurality of communication holes are formed in the outer side of the bottom end of the rotating column, an annular opening is coaxially formed in the middle of the inner peripheral side of the sealing ring pipe, one end of each communication hole is communicated with the inner cavity, and the other end of each communication hole is communicated with the annular opening.

Preferably, the fixing mechanism further comprises an adsorption assembly, the adsorption assembly comprises a second communicating pipe and a rubber layer, the input end of the second communicating pipe is communicated with the top of the second air cylinder, the output end of the second communicating pipe penetrates through the workbench and the rotating column in a sealing mode and extends out of the top of the rotating column, the rubber layer is coated on the upper surface of the supporting disc, a negative pressure adsorption fixing effect is formed in the shell, and stability of the shell when polished is improved.

Preferably, the balance pipes are communicated with the first communication pipe and the second communication pipe, the two balance pipes are far away from one ends of the first communication pipe and the second communication pipe and are communicated with the outside, and the pressure limiting valve is arranged in the balance pipe, so that the excessive pressure difference between the inside and the outside of the balance pipe is avoided, and the fixing effect on the shell is influenced.

Preferably, all be connected with the chip removal subassembly on first inflator and the second inflator, the chip removal subassembly includes surge bin, buffering piston, buffer spring, removes bits pipe and solenoid valve, two the surge bin is to deviating from the one end and all being linked together there is the pipe, two the pipe communicates respectively at first inflator top and second inflator bottom, sealed sliding connection has the buffering piston in the surge bin, fixedly connected with buffer spring between buffering piston and the surge bin, two the surge bin is all linked together in opposite one end has the chip removal pipe, two the solenoid valve is all installed to the chip removal intraductal, two the chip removal pipe output is directional respectively to wait to polish shell top both sides, and two solenoid valve synchronous gap switches on, makes the elastic potential energy that the buffer spring release was accumulated before, finally forms the air current flow path between two chip removal pipes, forms the treatment effect to the sweeps on the shell, improves the effect of polishing piece to the shell.

Preferably, the rotary mechanism is connected with the workbench, the rotary mechanism comprises a rotary motor, a driving gear and an outer gear ring, the rotary motor is installed in the workbench, the output end of the rotary motor is coaxially and fixedly connected with the driving gear, the outer gear ring is coaxially and fixedly connected with the outer periphery side of the bottom end of the rotary column, the driving gear is meshed with the outer gear ring, the output end of the rotary motor rotates, the rotary column is driven to rotate through the driving gear and the outer gear ring, and the polished range of the shell is improved.

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

according to the storage battery shell fixing device, when the output end of the telescopic mechanism stretches during use, the fixing frame drives the two side brackets to move downwards, one side bracket drives the sealing piston to compress air at the bottom of the first air cylinder through the pressure rod, the inner cavity air pressure of the supporting cylinder is increased through the first communication pipe and the sealing ring pipe, the elastic force of the fixing spring is overcome, the plurality of piston rods are pushed to move outwards, and under the action of the air pressure, the plurality of piston rods form a comprehensive and uniform supporting and fixing effect on the inner periphery side of the shell.

Further, another side stand drives sealed piston through the depression bar and stretches second inflator headspace, exports the negative pressure through the space between second communicating pipe shell and the supporting disk, fixes the shell on the supporting disk through the negative pressure effect, further improves the fixed effect to the shell, can improve the stability when the shell is polished.

Further, in the process of polishing the shell, the electromagnetic valves in the two chip removing pipes are synchronously started in a clearance mode, the elastic potential energy is partially released by the buffer springs in the two buffer bins, one chip removing pipe is used for jetting air outwards, the other chip removing pipe is used for sucking negative pressure outwards, then airflow circulation is formed on the upper surface of the shell, a cleaning effect is formed on scraps on the shell, and the effect of the scraps on polishing operation of the shell is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of a driving assembly according to the present invention;

FIG. 3 is a schematic view of a fixing assembly according to the present invention;

FIG. 4 is a schematic view of an adsorption module according to the present invention;

fig. 5 is a schematic structural view of a rotating mechanism according to the present invention.

In the figure: 1 workbench, 2 mounting frame, 3 telescopic machanism, 4 mount, 5 motor of polishing, 51 polishing block, 6 supporting disk, 7 supporting cylinder, 71 inner chamber, 8 fixed establishment, 811 side support, 812 depression bar, 813 first inflator, 814 second inflator, 815 sealing piston, 816 reset spring, 82 first communicating pipe, 83 fixed subassembly, 831 sealing ring pipe, 832 fixed pipe, 833 piston rod, 834 fixed spring, 84 adsorption subassembly, 841 second communicating pipe, 842 rubber layer, 9 chip removing subassembly, 91 buffer bin, 92 buffer piston, 93 buffer spring, 94 chip removing pipe, 95 solenoid valve, 10 rotary mechanism, 101 rotary motor, 102 driving gear, 103 outer gear ring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1, a battery case fixing device, including workstation 1, fixedly connected with mounting bracket 2 on the workstation 1, install telescopic machanism 3 on the mounting bracket 2, telescopic machanism 3 output fixedly connected with mount 4, telescopic machanism 3 work its output drives mount 4 and removes, improves power for follow-up part work, drives the part of polishing simultaneously and is close to waiting to polish the shell, makes things convenient for it to polish the shell.

Install moving mechanism in the mount 4, the moving mechanism output is connected with motor 5 of polishing, and wherein moving mechanism work drive motor 5 linear motion of polishing, motor 5 output fixedly connected with polishing piece 51 of polishing, moving mechanism adopt current electric telescopic handle, drive motor 5 rectilinear movement of polishing conveniently improves motor 5's scope of polishing, conveniently polishes not unidimensional shell.

Referring to fig. 1, 2 and 4, a supporting disk 6 is rotatably connected to a workbench 1, a supporting cylinder 7 is coaxially and fixedly connected to the supporting disk 6, an inner cavity 71 is formed in the supporting cylinder 7, a fixing mechanism 8 is connected to the workbench 1, the fixing mechanism 8 comprises a driving component, a first communication pipe 82 and a fixing component 83, the input end of the driving component is connected to the outer side of a fixing frame 4, the output end of the driving component is connected with the first communication pipe 82, the driving component comprises side brackets 811, a pressure lever 812, a first air cylinder 813, a second air cylinder 814, a sealing piston 815 and a return spring 816, the two side brackets 811 are fixedly connected to two sides of the fixing frame 4, the pressure lever 812 is fixedly connected to one end far from the fixing frame 4, the first air cylinder 813 and the second air cylinder 814 are fixedly connected to the workbench 1, the first air cylinder 813 and the second air cylinder 814 are positioned outside the two sides of the supporting disk 6, and the sealing piston 815 is hermetically and slidingly connected to the inner part, the bottom ends of the two compression rods 812 respectively penetrate through the first air cylinder 813 and the second air cylinder 814 in a sealing mode and are abutted against the upper surface of the sealing piston 815, the lower surface of the sealing piston 815 is fixedly connected with a reset spring 816, one ends of the two reset springs 816, far away from the sealing piston 815, are respectively fixedly connected to the bottoms in the first air cylinder 813 and the second air cylinder 814, the input ends of the first communication pipes 82 are communicated to the bottoms of the first air cylinder 813, when the fixing frame 4 moves downwards, the two side brackets 811 and the compression rods 812 overcome the elasticity of the reset spring 816 to form a pushing effect on the two sealing pistons 815, the two sealing pistons 815 slide downwards in the first air cylinder 813 and the second air cylinder 814 in a sealing mode, and accordingly a negative pressure space is formed at the tops of the first air cylinder 813 and the second air cylinder 814, and a high pressure space is formed at the bottoms of the two sealing pistons to provide power for the action of subsequent parts.

Referring to fig. 3, the output end of the first communication pipe 82 is connected with the fixing component 83, the fixing component 83 is connected to the supporting cylinder 7, and the output end is abutted against the inner side of the shell to be polished, the fixing component 83 comprises a sealing ring pipe 831, a fixing pipe 832, a piston rod 833 and a fixing spring 834, the sealing ring pipe 831 is coaxially and hermetically connected to the outer peripheral side of the bottom end of the supporting cylinder 7 and is communicated with the inner cavity 71, a plurality of communication holes are formed in the outer side of the bottom end of the supporting cylinder 7, an annular opening is coaxially formed in the middle of the inner peripheral side of the sealing ring pipe 831, one end of each communication hole is communicated with the inner cavity 71, and the other end of each communication hole is communicated with the annular opening, so that the sealing ring pipe 831 does not prevent the supporting cylinder 7 from rotating when being communicated with the inner cavity 71, and the supporting cylinder 7 is conveniently driven to rotate by subsequent components.

The output end of the first communication pipe 82 is communicated with the sealing ring pipe 831, a plurality of fixed pipes 832 are communicated with the outer peripheral side of the top end of the supporting cylinder 7, piston rods 833 are connected in a sealing sliding mode in the plurality of fixed pipes 832, fixed springs 834 are fixedly connected between the piston rods 833 and the fixed pipes 832, one ends of the plurality of piston rods 833, far away from the supporting cylinder 7, all lean against the inner side of a shell to be polished, when air at the bottom of the first air cylinder 813 is compressed, the sealing ring pipe 831 is inflated through the first communication pipe 82, the air pressure in the inner cavity 71 is increased, under the action of the air pressure, the plurality of piston rods 833 overcome the elastic force of the fixed springs 834 to move outwards, a comprehensive and uniform supporting and fixing effect is formed on the inner peripheral side of the shell, stability of the shell when the shell is polished is improved, and meanwhile, uniform supporting and fixing effects can be formed when the shells with different sizes are clamped.

Referring to fig. 3 and 4, the fixing mechanism 8 further includes an adsorption assembly 84, the adsorption assembly 84 includes a second communicating pipe 841 and a rubber layer 842, an input end of the second communicating pipe 841 penetrates through a bottom of the second air cylinder 814 and the sealing piston 815 to communicate with a top of the second air cylinder 814, an output end of the second communicating pipe penetrates through the workbench 1 and the supporting cylinder 7 in a sealing manner and stretches out of the top of the supporting cylinder 7, the rubber layer 842 is coated on an upper surface of the supporting disk 6, the rubber layer 842 improves a contact effect with a bottom end of the shell, the sealing performance of a space enclosed between the shell and the upper surface of the rubber layer 842 is improved, the top of the second air cylinder 814 forms a suction effect on the space through the second communicating pipe 841, the shell is fixed on the supporting disk 6 through a negative pressure effect, the fixing effect on the shell is further improved, and stability of the shell when the shell is polished is improved.

The balance pipes are respectively communicated with the first communication pipe 82 and the second communication pipe 841, one ends of the two balance pipes, which are far away from the first communication pipe 82 and the second communication pipe 841, are respectively communicated with the outside, and the pressure limiting valve is arranged in the balance pipes, so that the influence on the fixing effect of the shell due to overlarge pressure difference between the inside and the outside of the balance pipes is avoided, and the balance pipes and the pressure limiting valve are all existing components and are not illustrated in the figure.

Referring to fig. 2, the first air cylinder 813 and the second air cylinder 814 are connected with a chip removing component 9, the chip removing component 9 comprises a buffer bin 91, a buffer piston 92, a buffer spring 93, chip removing pipes 94 and an electromagnetic valve 95, one end of each buffer bin 91 facing away from the air is communicated with a conduit, the other conduit is communicated with the top of the first air cylinder 813, the other conduit penetrates through the top of the second air cylinder 814 and the sealing piston 815 to be communicated with the bottom of the second air cylinder 814, the buffer bin 91 is internally and slidably connected with the buffer piston 92 in a sealing manner, the buffer spring 93 is fixedly connected between the buffer piston 92 and the buffer bin 91, the chip removing pipes 94 are respectively communicated with the opposite ends of the two buffer bins 91, the electromagnetic valve 95 is respectively arranged in the two chip removing pipes 94, the output ends of the two chip removing pipes 94 are respectively pointed at two sides of the top of the shell to be polished, negative pressure is output to the inside of one buffer bin 91 through a guide pipe at the top of the first air cylinder 813, so that the buffer spring 93 is compressed to store elastic potential energy, the bottom of the second air cylinder 814 is inflated to the inside of the other buffer bin 91 through the guide pipe, the buffer spring 93 is extruded to store the elastic potential energy, when the gap between the two electromagnetic valves 95 is controlled to be conducted, the elastic potential energy of the buffer spring 93 is partially released, so that one chip removing pipe 94 is used for jetting air outwards, the other chip removing pipe is used for sucking negative pressure outwards, flowing air flow is formed at the top of the shell, a cleaning effect is formed on scraps on the shell, and the influence of the scraps on polishing operation of the polishing block 51 on the shell is avoided.

Referring to fig. 5, a rotating mechanism 10 is connected in the workbench 1, the rotating mechanism 10 comprises a rotating motor 101, a driving gear 102 and an outer gear ring 103, the rotating motor 101 is installed in the workbench 1, the output end of the rotating motor 101 is coaxially and fixedly connected with the driving gear 102, the outer gear ring 103 is coaxially and fixedly connected to the outer peripheral side of the bottom end of the supporting cylinder 7, the driving gear 102 is meshed with the outer gear ring 103, the output end of the rotating motor 101 rotates, the supporting cylinder 7 is driven to rotate through the driving gear 102 and the outer gear ring 103, so that the supporting disc 6 drives a fixed shell to rotate, and a comprehensive polishing effect is formed on the top of the shell by matching with a polishing block 51 at the output end of the polishing motor 5.

When the storage battery shell is polished, the shell is placed on a supporting disc 6 on a workbench 1, a telescopic mechanism 3 is started, the output end of the telescopic mechanism 3 stretches to drive a fixing frame 4 to move downwards, a polishing motor 5 and two side brackets 811 are driven by the fixing frame 4 to move downwards, a compression rod 812 is driven by the two side brackets 811 to move sealing pistons 815 in a first air cylinder 813 and a second air cylinder 814 downwards, one sealing piston 815 compresses air at the bottom of the first air cylinder 813, a sealing ring pipe 831 in a fixing assembly 83 is inflated through a first communicating pipe 82, the air pressure of an inner cavity 71 of a supporting cylinder 7 communicated with the sealing ring pipe 831 is increased, a piston rod 833 is pushed to move outwards by overcoming the elasticity of a fixing spring 834, a comprehensive and uniform supporting and fixing effect is formed on the inner side of the shell by the plurality of piston rods 833, and the stability of the shell during polishing is improved;

meanwhile, the other sealing piston 815 stretches the top space of the second air cylinder 814, negative pressure is output to the space between the shell and the supporting disc 6 through the second communicating pipe 841, the shell is fixed on the supporting disc 6 through the negative pressure effect, the fixing effect on the shell is further improved, and the stability of the shell when the shell is polished is improved;

starting a polishing motor 5 and a rotating motor 101, wherein the output end of the polishing motor 5 drives a polishing block 51 to rotate at a high speed, the output end of the rotating motor 101 drives a driving gear 102 to rotate, and the driving gear 102 drives a supporting cylinder 7 to rotate through an outer gear ring 103, so that a supporting disc 6 drives a fixed shell to rotate, and a comprehensive polishing effect is formed on the top of the shell;

in the polishing process of the shell, the electromagnetic valves 95 in the two chip removing pipes 94 are synchronously started in a clearance mode, after the two sealing pistons 815 are moved, the top space of the first air cylinder 813 is stretched, negative pressure is output into the buffer bin 91 through a conduit connected with the first air cylinder 813, the buffer spring 93 is compressed to store elastic potential energy, and when the electromagnetic valves 95 are in clearance conduction, the elastic potential energy of the buffer spring 93 is partially released, so that an air injection effect is formed outwards through the chip removing pipes 94; and air at the bottom of the second air cylinder 814 is compressed, the buffer bin 91 is inflated through a conduit connected with the second air cylinder, the buffer spring 93 is extruded to store elastic potential energy, and when the electromagnetic valve 95 is in clearance conduction, the elastic potential energy of the buffer spring 93 is partially released, so that a negative pressure suction effect is formed outwards through the chip removing pipe 94, and further air flow from the first air cylinder 813 to the second air cylinder 814 is formed on the upper surface of the housing being polished, a cleaning effect is formed on scraps on the housing, and the influence of the scraps on the polishing operation of the polishing block 51 on the housing is avoided.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a battery case fixing device, includes workstation (1), fixedly connected with mounting bracket (2) on workstation (1), install telescopic machanism (3) on mounting bracket (2), telescopic machanism (3) output fixedly connected with mount (4), a serial communication port, be equipped with on workstation (1) and be used for supporting support section of thick bamboo (7) of shell work piece, inner chamber (71) have been seted up in support section of thick bamboo (7), be connected with fixed establishment (8) on workstation (1), fixed establishment (8) include drive assembly, first connecting pipe (82) and fixed subassembly (83), drive assembly input is connected in the mount (4) outside, and the output is connected with first connecting pipe (82), first connecting pipe (82) output is connected with fixed subassembly (83), fixed subassembly (83) are connected on support section of thick bamboo (7). The driving assembly comprises side brackets (811), pressure rods (812), a first air cylinder (813), a second air cylinder (814), sealing pistons (815) and reset springs (816), wherein the two side brackets (811) are fixedly connected to two sides of a fixed frame (4), the pressure rods (812) are fixedly connected to one end far away from the fixed frame (4), the first air cylinder (813) and the second air cylinder (814) are fixedly connected to the workbench (1), the first air cylinder (813) and the second air cylinder (814) are positioned on two sides of the supporting cylinder (7), the sealing pistons (815) are respectively connected to the inner parts in a sealing sliding mode, the bottom ends of the two pressure rods (812) respectively penetrate through the first air cylinder (813) and the second air cylinder (814) in a sealing mode and are abutted against the upper surface of the sealing pistons (815), the reset springs (816) are fixedly connected to the lower surface of the sealing pistons (815), one ends of the two reset springs (816) are respectively fixedly connected to the inner bottoms of the first air cylinder (813) and the second air cylinder (814), and the first connecting pipe (82) are communicated with the bottom part (813); the fixing assembly (83) comprises a sealing ring pipe (831), a fixing pipe (832), a piston rod (833) and a fixing spring (834), the sealing ring pipe (831) is coaxially and hermetically connected to the outer peripheral side of the bottom end of the supporting cylinder (7) and is communicated with the inner cavity (71), the output end of the first connecting pipe (82) is communicated with the sealing ring pipe (831), a plurality of fixing pipes (832) are communicated to the outer peripheral side of the top end of the supporting cylinder (7), the fixing pipes (832) are internally and slidably connected with the piston rod (833) in a sealing manner, the fixing spring (834) is fixedly connected between the piston rod (833) and the fixing pipe (832), and the piston rod (833) is far away from the inner side of the supporting cylinder (7) and is used for leaning against a shell workpiece.

2. The storage battery case fixing device according to claim 1, wherein a plurality of communication holes are formed in the outer side of the bottom end of the supporting cylinder (7), an annular opening is formed in the middle of the inner peripheral side of the sealing ring pipe (831) coaxially, one end of each communication hole is communicated with the inner cavity (71), and the other end of each communication hole is communicated with the annular opening.

3. A battery case fixing device according to claim 1, wherein the fixing mechanism (8) further comprises an adsorption assembly (84), the adsorption assembly (84) comprises a second communicating pipe (841), an input end of the second communicating pipe (841) is communicated with the top of the second air cylinder (814), and an output end of the second communicating pipe is sealed to penetrate the workbench (1) and the supporting cylinder (7) and extend out of the top of the supporting cylinder (7).

4. A battery case fixing device according to claim 3, wherein the first communicating pipe (82) and the second communicating pipe (841) are respectively connected with a balance pipe, one end of each balance pipe, which is far away from the first communicating pipe (82) and the second communicating pipe (841), is respectively connected with the outside, and a pressure limiting valve is arranged in each balance pipe.

5. The storage battery shell fixing device according to claim 1, wherein the first air cylinder (813) and the second air cylinder (814) are both connected with a chip removing component (9), the chip removing component (9) comprises a buffer bin (91), a buffer piston (92), a buffer spring (93), a chip removing pipe (94) and an electromagnetic valve (95), two buffer bins (91) are both communicated with a guide pipe towards one deviating end, two guide pipes are respectively communicated with the top of the first air cylinder (813) and the bottom of the second air cylinder (814), the buffer piston (92) is connected in a sealing sliding manner in the buffer bin (91), a buffer spring (93) is fixedly connected between the buffer piston (92) and the buffer bin (91), two chip removing pipes (94) are respectively communicated with one opposite ends of the buffer bin (91), the electromagnetic valve (95) are respectively installed in the chip removing pipes (94), and the output ends of the two chip removing pipes (94) are respectively pointed to two sides of the top of the shell.

6. The storage battery shell fixing device according to claim 1, wherein a rotating mechanism (10) is connected to the workbench (1), the rotating mechanism (10) comprises a rotating motor (101), a driving gear (102) and an outer gear ring (103), the rotating motor (101) is installed in the workbench (1), the driving gear (102) is coaxially and fixedly connected to the output end of the rotating motor (101), the outer gear ring (103) is coaxially and fixedly connected to the outer peripheral side of the bottom end of the supporting cylinder (7), and the driving gear (102) is meshed with the outer gear ring (103).