CN107790804B

CN107790804B - Lithium battery electrode slice slitting device and assembly process thereof

Info

Publication number: CN107790804B
Application number: CN201711194565.8A
Authority: CN
Inventors: 柳开平
Original assignee: Nanjing Baize Machinery Co ltd
Current assignee: Nanjing Baize Machinery Co ltd
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2023-05-19
Anticipated expiration: 2037-11-24
Also published as: CN107790804A

Abstract

The invention discloses a lithium battery electrode slice slitting device and an assembly process thereof, and belongs to the technical field of slitting machine devices. The invention comprises a tool rest, wherein a transmission shaft is arranged on the tool rest and is divided into an upper main shaft and a lower main shaft, the upper main shaft and the lower main shaft are respectively connected with a plurality of hydraulic locking tool holders, the hydraulic locking tool holders on the upper main shaft are distributed in one-to-one correspondence with the hydraulic locking tool holders of the lower main shaft, and annular blades are fixed on the hydraulic locking tool holders. According to the invention, the hydraulic locking tool apron is moved and fixed at any position on the transmission shaft by utilizing a hydraulic principle, compared with the traditional mode of positioning the annular blades by using the spacer, the purpose of randomly adjusting the axial distance between the annular blades is realized, no accumulated error exists, the processing precision is obviously improved, and when the product specification is switched, only the axial distance of the hydraulic locking tool apron is required to be adjusted, the hydraulic locking tool apron is not required to be disassembled, so that the labor and time are saved, and the yield is greatly improved.

Description

Lithium battery electrode slice slitting device and assembly process thereof

Technical Field

The invention relates to the technical field of splitting machine devices, in particular to a lithium battery electrode slice splitting device and an assembly process thereof.

Background

At present, the production of the lithium battery electrode slice in the market is mainly realized by cutting through a splitting machine, and when an annular blade for producing the lithium battery electrode slice is arranged on a transmission shaft of a cutter frame of the splitting machine, a spacer bush is generally used for positioning, as shown in fig. 8, because the width of the transmission shaft on the cutter frame is fixed, and a plurality of spacer bushes are used for positioning, accumulated errors exist, so that the production precision of the lithium battery electrode slice is greatly reduced, and the quality of a finished product of the lithium battery electrode slice is seriously influenced; in addition, when producing the electrode slice of different specifications, need use the spacer of different specifications to fix a position to guarantee that annular blade distribution interval on the transmission shaft satisfies electrode slice size requirement, when switching the electrode slice of different specifications of production, just need dismantle original spacer on the transmission shaft, install the spacer that satisfies specification requirement again, in this way, not only increased staff's work load, seriously influence the production efficiency of enterprise moreover.

Through searching, chinese patent application, application number: 201020538264.X, publication day: 2011.04.27A hydraulic circular knife fixing seat is composed of an expansion sleeve, a pressurizing plunger and pressurizing screws, and is used for a longitudinal precise cutting and slitting machine for metal coil plates, wherein an inner oil cavity is formed in the expansion sleeve, two oil holes are uniformly distributed in the circumferential direction, and the two oil holes are communicated with the inner oil cavity to form an oil duct; the pressurizing plungers are paired plungers; the pressurizing plunger presses pressure oil into the inner oil cavity through the oil duct; the pressurizing screws are paired M20 screws and are axially connected with the pressurizing plunger. The hydraulic circular knife fixing seat provided by the utility model utilizes a hydraulic amplification principle, a pair of pressurizing bolts are locked to push a pair of pressurizing plungers, and the pressurizing plungers press pressure oil into an inner oil cavity through an oil duct, so that the inner wall and the outer wall of the inner oil cavity are deformed, an inner hole of an expansion sleeve is held by a knife shaft, and the purposes of positioning the expansion sleeve on the knife shaft and transmitting torque are achieved. When the oil filling and exhausting device is used for filling oil, the pressurizing screw and the steel ball are required to be taken out, and the oil leakage quantity at the exhaust side is not controlled when the oil filling is carried out; in order to empty the air as much as possible, the oil filling speed needs to be as slow as possible, so that the production efficiency is seriously affected, meanwhile, more air is brought in the process of filling steel balls and pressurizing bolts after the oil filling is finished, and the situation that only air is compressed when the air is pressurized, so that the expansion sleeve cannot hold the cutter shaft tightly exists.

Chinese patent application, number: CN201320064611.3, publication date: 2013.08.21 it discloses an adjustable subassembly and quick adjustment frock cut, and it includes two subassemblies and axle bed, and two subassemblies set up in the axle bed to two subassemblies are placing from top to bottom, and the subassembly includes main shaft, cutter and adjustable spacer, and cutter and adjustable spacer set up in the main shaft, and adjustable spacer sets up in the both sides of cutter, and the main shaft transmission of two subassemblies is connected. The adjustable spacer comprises a width-adjustable spacer and a position-adjustable spacer, and the width-adjustable spacer can adapt to the cutting of batteries with small specification differences; the adjustable spacer bush with adjustable position can adapt to the battery cutting with larger specification difference. However, when the adjustable spacer bush with adjustable width is arranged on the assembly, the adjustable spacer bush with adjustable position is required to be replaced for positioning, and the battery with larger lattice phase difference can not be cut; when the adjustable spacer with adjustable position is arranged on the assembly, the assembly is limited by the size of the adjustable spacer, accumulated errors exist when the cutter is positioned, and the adjustable spacer with adjustable width is required to be replaced for positioning. Meanwhile, as the cutter is arranged on the main shaft and fixed by the spacer bushes at the two sides, the disassembly and assembly are complicated.

Disclosure of Invention

1. Technical problem to be solved by the utility model

Aiming at the problems that accumulated errors exist when an annular blade for producing the lithium battery electrode plate is arranged on a transmission shaft and spacer positioning is used, and the workload of spacer switching is large when electrode plates with different specifications are produced, and the production efficiency is influenced, the invention provides a lithium battery electrode plate slitting device and an assembly process thereof, which utilize a hydraulic principle to establish oil pressure in a closed cavity by adjusting a pressure adjusting bolt on a hydraulic locking tool apron, so that the thin wall of an inner sleeve is deformed, and the inner sleeve is tightly held on the transmission shaft on a cutter frame of a slitting machine, and can be locked at any position on the transmission shaft without accumulated errors; meanwhile, as the locking position of the hydraulic locking tool apron is adjustable, when electrode plates with different specifications are produced in a switching way, the hydraulic locking tool apron is not required to be disassembled, and only the locking position is required to be adjusted.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

the lithium battery electrode slice cutting device comprises a knife rest, wherein a transmission shaft is arranged on the knife rest, the transmission shaft comprises an upper main shaft and a lower main shaft, one ends of the upper main shaft and the lower main shaft are connected with a reference seat, the other ends of the upper main shaft and the lower main shaft are connected with a supporting seat, rolling bearings are arranged on the reference seat and the supporting seat, and the upper main shaft and the lower main shaft are connected with the rolling bearings on the reference seat and the supporting seat in a matched manner; the base seat with the supporting seat lower extreme is connected with mounting plate, and base seat and supporting seat pass through bolt and mounting plate fixed connection, perhaps pass through welded mode fixed connection, all cup joint hydraulic locking blade holder on going up main shaft and the lower main shaft, thereby hydraulic locking blade holder makes its inner wall warp and embraces tightly or loosen the transmission shaft with hydraulic pressure, and then reaches fixed or unblock effect, go up the main shaft with all still be equipped with annular blade on the main shaft down, go up the last annular blade of main shaft with the last annular blade one-to-one cooperation arrangement of main shaft down, form the cooperation clearance between the annular blade of radial distribution.

According to the scheme, the upper main shaft and the lower main shaft are arranged in parallel along the axis direction, the upper main shaft is positioned right above the lower main shaft, the hydraulic locking tool apron on the upper main shaft and the hydraulic locking tool apron on the lower main shaft are arranged in a one-to-one correspondence manner, and the annular blade is fixed on the hydraulic locking tool apron.

The hydraulic locking tool apron comprises an inner sleeve and an outer sleeve, wherein the inner sleeve and the outer sleeve are cylindrical, and the inner sleeve is inserted into the outer sleeve and is detachably connected with the outer sleeve, preferably by using bolts; the outer wall of the inner sleeve and the two ends of the outer sleeve along the central axis direction are in interference fit, the middle part is in clearance fit, a closed cavity is formed at the fit clearance, the closed cavity is used for filling liquid with good fluidity, hydraulic oil is preferably used, the wall thickness of the inner sleeve corresponding to the position of the closed cavity is generally 2.5-3.5 mm, the inner wall of the inner sleeve is easy to deform and difficult to break when being pressed, the inner sleeve is made of spring steel materials with good fatigue strength, such as 65Mn steel, and the wall thickness of the outer sleeve corresponding to the position of the closed cavity is larger than the wall thickness of the inner sleeve. The pressure regulating device and the exhaust device are both communicated with the closed cavity through the oil guide hole, hydraulic oil in the closed cavity is pressurized by the pressure regulating device to press the inner wall of the inner sleeve to deform, so that the purpose of holding the transmission shaft is achieved, the axial width of the closed cavity is more than 1/3 of the axial width of the hydraulic locking tool apron, the area of the hydraulic locking tool apron holding the transmission shaft is large enough, the locking force is strong enough, and the exhaust device is used for exhausting air in the closed cavity, so that hydraulic failure is avoided when the air exists.

The scheme is further improved, an inner sleeve annular square groove is formed in the outer wall of the inner sleeve, and after the inner sleeve is connected with the outer sleeve, the inner sleeve annular square groove on the outer wall of the inner sleeve is matched with the inner wall of the outer sleeve at the position of the annular square groove to form an annular closed cavity; the annular square groove can also be arranged on the inner wall of the outer sleeve, and an annular closed cavity is formed by matching the annular square groove of the outer sleeve on the inner wall of the outer sleeve with the outer wall of the inner sleeve; the annular square grooves can be simultaneously arranged on the outer wall of the inner sleeve and the inner wall of the outer sleeve, the annular square grooves of the inner sleeve on the outer wall of the inner sleeve and the annular square grooves of the outer sleeve on the inner wall of the outer sleeve are matched to form a closed cavity, and the axial width of the annular square grooves is more than 1/3 of the axial width of the hydraulic locking tool apron.

According to the scheme, O-shaped rings are arranged on two sides of the closed cavity, preferably, the O-shaped rings are made of elastic materials with good sealing performance, such as butyl cyanide rubber and the like, the O-shaped rings are clamped in grooves between the outer wall of the inner sleeve and the inner wall of the outer sleeve and used for containing the O-shaped rings, the grooves can be O-shaped ring grooves formed in the outer wall of the inner sleeve or O-shaped ring grooves formed in the inner wall of the outer sleeve in a matched mode, the O-shaped rings are used for sealing liquid in the closed cavity, the liquid cannot seep out through the matched parts between the inner sleeve and the outer sleeve, and meanwhile, the depth or the diameter of the section of each groove is smaller than that of the cross section of each O-shaped ring, so that the O-shaped rings can be tightly pressed on the groove walls of the O-shaped rings after being installed, and good sealing effect is achieved.

The technical scheme is further improved, the outer sleeve is provided with the oil filling channel and the exhaust channel, the oil filling channel and the exhaust channel are communicated with the closed cavity, the oil filling channel is used for filling hydraulic oil into the closed cavity, the exhaust channel is used for exhausting air in the closed cavity, and the air residue is prevented from affecting the locking effect of the hydraulic locking tool apron. The port that the exhaust passage linked to the airtight die cavity is set up on airtight die cavity wall along one side in the axial direction of endotheca, the port that the oil charge passageway linked to airtight die cavity is set up at airtight die cavity along the opposite side in the axial direction of endotheca, during the liquid filling pressure oil, the hydraulic locking blade holder is vertical to be placed along the central axis, and the exhaust passage is located the top of oil charge passageway, because liquid heavy gas is light, hydraulic oil can slowly arrive exhaust passage mouth department and discharge gradually with the air.

According to the scheme, the exhaust passage opening is formed in the outer circular surface of the annular closed cavity, the axis of the exhaust passage is tangential to the outer circular surface of the annular closed cavity, the oil filling passage is located on the other side of the closed cavity along the normal direction of the axis of the inner sleeve, when the hydraulic locking tool apron arranged on the transmission shaft needs to exhaust air, only the port, which is used for enabling the exhaust passage to be communicated into the closed cavity, is located right above the closed cavity, and because of light liquid and heavy gas, air can be slowly gathered at the exhaust passage opening, and at the moment, the air can be discharged from the exhaust passage only by pressurizing the closed cavity through the pressure adjusting device.

The technical scheme is further improved, the oil charging channel comprises a right oil guide hole, a sealing piston hole and a pressure adjusting bolt hole, wherein the right oil guide hole, the sealing piston hole and the pressure adjusting bolt hole are sequentially communicated, the pore diameter is sequentially increased to be in a step shape, a taper section is arranged at the joint of the sealing piston hole and the right oil guide hole, and the right oil guide hole is communicated with the closed cavity; the exhaust passage comprises a left oil guide hole and a compression bolt hole, the left oil guide hole and the closed cavity are communicated in sequence, the aperture of the compression bolt hole is larger than that of the left oil guide hole, the joint of the compression bolt hole and the left oil guide hole is provided with a tapered section in an excessive mode, an exhaust hole is formed beside the compression bolt hole, the exhaust hole is communicated with the bottom of the compression bolt hole, and the aperture of the exhaust hole is 2mm.

The pressure regulating device comprises a sealing pushing plug, a sealing movable core and a pressure regulating bolt, wherein the pressure regulating bolt is an M8 bolt, the sealing pushing plug and the sealing movable core are sequentially inserted into the sealing piston hole, the diameter of the sealing pushing plug is larger than the diameter of the right oil guide hole, and the sealing pushing plug is prevented from entering a closed cavity through the right oil guide hole; the head part of the sealing propulsion plug is conical, the conical surface of the head part of the sealing propulsion plug is matched with the conical surface of the tapered section at the joint of the sealing piston hole and the right oil guide hole, and the sealing effect is better; the pressure adjusting bolt is positioned in the pressure adjusting bolt hole, the pressure adjusting bolt is in threaded connection with the outer sleeve, and the pressure in the closed cavity can be increased or reduced by screwing in and screwing out the pressure adjusting bolt. The exhaust device comprises a sealing ball and a compression bolt, wherein the compression bolt is an M6 bolt, the sealing ball and the compression bolt are sequentially inserted into the compression bolt hole, the diameter of the sealing ball is larger than the diameter of the left oil guide hole and the aperture of the exhaust hole, the sealing ball is prevented from entering a closed cavity through the left oil guide hole, the compression bolt is in threaded connection with the outer sleeve connection mode, the left oil guide hole and the exhaust hole are communicated through the screwing-out of the compression bolt, an exhaust channel is formed, and after the compression bolt is screwed-in, the spherical surface of the sealing ball props against the conical surface of the tapered section at the joint of the compression bolt hole and the left oil guide hole to play a sealing role.

The technical scheme is further improved, the pressure adjusting bolt and the compression bolt are provided with limiting bolts along the axial screwing-out direction, the axial lines of the limiting bolts are respectively perpendicularly intersected with the axial lines of the pressure adjusting bolt and the compression bolt, the limiting bolts are M3 bolts, the limiting bolts are assembled on the outer sleeves, the limiting bolts are in threaded connection with the outer sleeves, and the limiting bolts are used for limiting screwing-out strokes of the pressure adjusting bolts and the compression bolts.

The technical scheme is further improved, the hydraulic locking knife holder comprises a locking sleeve, the locking sleeve is an annular plate, an inner thread is arranged on an inner annular surface, the locking sleeve and an outer sleeve are connected with an outer thread on the outer sleeve in a matched manner through the inner thread on the locking sleeve, the locking sleeve is used for fixing an annular knife blade on the hydraulic locking knife holder, a knife loading step is arranged on the outer sleeve, the radius of the annular side surface of the knife loading step is equal to the radius of the inner circular surface of the annular knife blade, so that the annular knife blade can be clamped on the knife loading step and radial displacement does not occur, a knife clamping groove is formed in the knife loading step after the locking sleeve is connected with the outer sleeve, the knife clamping groove is used for fixing the annular knife blade, and the width of the knife clamping groove is consistent with the thickness of the annular knife blade, so that axial movement cannot occur after the annular knife blade is assembled.

The technical scheme is further improved, a grating is arranged beside the tool rest, the grating is one of grating scales and is used for measuring the axial distance of the annular blade, so that the annular blade is accurately positioned, when the blocking finger of the grating is at a certain position, the reading on the grating display is cleared, and when the blocking finger moves a certain distance along a certain direction, the distance can be directly displayed on the grating display.

An assembly process of a lithium battery electrode slice slitting device comprises the following specific steps:

step one, assembling a hydraulic locking tool apron:

A. assembling an O-shaped ring: the O-shaped ring is clamped into a groove on the inner wall of the outer sleeve or the outer wall of the inner sleeve, the groove is an annular groove with a semicircular section, and the depth of the groove is smaller than the diameter of the section of the O-shaped ring;

B. assembling an inner sleeve: the inner sleeve is inserted into the outer sleeve and is fixed through a fastening bolt;

C. assembling an exhaust device: the sealing ball is arranged in an exhaust channel on the outer sleeve, the sealing ball is positioned at the bottom of the compression bolt hole, the compression bolt is arranged in the compression bolt hole at the opening of the exhaust channel, and the compression bolt is ensured to be in a half-screwing state, so that the sealing ball can roll back and forth at the bottom of the compression bolt hole;

D. Hydraulic oil filling and exhaust processes: the hydraulic locking tool apron is vertically arranged along the central axis, the exhaust channel is located above the oil filling channel, hydraulic oil is slowly injected into the closed cavity from the oil filling channel, the hydraulic oil sequentially passes through the pressure adjusting bolt hole, the sealing piston hole and the right oil guide hole and then enters the closed cavity, air in the closed cavity is gradually driven to one side of an inlet of the exhaust channel, the air pressure in the closed cavity is relatively increased, the steel ball is pressed to roll towards one side of the compression bolt due to the action of air pressure, at the moment, an orifice of an exhaust hole at the bottom of the compression bolt hole is communicated with the left oil guide hole, the air in the closed cavity enters the exhaust hole through the left oil guide hole and then is discharged, and meanwhile, a part of the air is oozed out through a fit gap between the compression bolt hole and the compression bolt hole, and when the outer holes of the exhaust hole and the compression bolt hole slowly emit hydraulic oil and no longer intermittently emit air bubbles, the hydraulic oil in the closed cavity can be regarded as full, and then the filling of the hydraulic oil is stopped;

E. assembling a pressure regulating device: the sealing propelling plug and the sealing movable core are sequentially inserted into the oil filling channel, then the pressure adjusting bolt is arranged on the pressure adjusting bolt hole of the exhaust channel opening, so that the pressure adjusting bolt is in a partial screwing state, the pressure adjusting bolt can be further screwed in when the pressure in the sealed cavity needs to be increased, meanwhile, the compression bolt of the exhaust channel opening is screwed, the compression bolt compresses the sealing ball, the spherical surface of the sealing ball is compressed on the tapered surface between the compression bolt hole and the left oil guide hole, the communication between the exhaust hole and the compression bolt hole is blocked, and a sealing effect is formed;

F. The assembly of the limit bolts is that the limit bolts are assembled on the limit bolt holes at the oil filling channel and the exhaust channel openings of the outer sleeve and used for limiting the screwing-out of the pressure adjusting bolts and the compression bolts, so that the situation that the whole hydraulic locking tool apron is invalid in the fixing of the transmission shaft due to the fact that the pressure adjusting bolts and the compression bolts are screwed out and fall off due to vibration when the hydraulic locking tool apron is in a high-speed rotating state is avoided;

G. fixing the annular blade: the annular blade is clamped on a blade mounting step on the outer sleeve, the radius of the annular side surface of the blade mounting step is equal to the radius of the inner circular surface of the annular blade, and the radial movement of the annular blade is prevented;

H. assembling a locking sleeve: the locking sleeve is sleeved on the outer sleeve and screwed, the tightening sleeve is connected with the outer sleeve through threads, and the locking sleeve is used for preventing the annular blade from moving axially;

step two, the hydraulic locking tool holders are respectively arranged on an upper main shaft and a lower main shaft;

step three, positioning and fixing the hydraulic locking tool apron:

A. moving a blocking finger on the grating to the position of an annular blade on a hydraulic locking blade holder at one end of a lower spindle, resetting the reading on the grating display, and simultaneously adjusting and locking the hydraulic locking blade holder at the position;

B. Moving the blocking finger along the axis direction of the lower spindle until the grating reading change difference value is the specified size of the electrode plate, and locking the position of the blocking finger;

C. moving a hydraulic locking tool apron at the other end of the lower spindle to enable an annular blade on the hydraulic locking tool apron to be aligned with a finger blocking position, and then locking the hydraulic locking tool apron (2);

D. repeating the step A, B, C to sequentially position and lock the rest hydraulic locking tool holders on the lower spindle;

E. and moving the hydraulic locking tool apron on the upper main shaft to enable the annular blades on the upper main shaft to vertically correspond to the annular blades on the lower main shaft one by one, and locking the hydraulic locking tool apron.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) According to the lithium battery electrode slice slitting device, the pressure adjusting device on the hydraulic locking tool apron is used for pressurizing hydraulic oil in the closed cavity to enable the inner sleeve to tightly hold the transmission shaft on the tool rest, so that the purpose that the hydraulic locking tool apron is locked at any position on the transmission shaft is achieved.

(2) According to the lithium battery electrode slice slitting device, the pressure adjusting device on the hydraulic locking knife holder is used for decompressing hydraulic oil in the closed cavity, so that the hydraulic locking knife holder loosens the transmission shaft and can move at any position of the transmission shaft, the distance between the two hydraulic locking knife holders can be adjusted at will, the distance positioning is accurate, no accumulated error exists, the dimension fluctuation of a slitting product is small, and the slitting precision and quality are improved remarkably.

(3) According to the lithium battery electrode slice cutting device, multiple groups of annular blades can be arranged in the axial direction of the transmission shaft, and when the axial intervals of the groups of annular blades are the same, multiple products can be generated by single cutting, so that the production efficiency is greatly improved.

(4) According to the lithium battery electrode slice cutting device, multiple groups of annular blades can be arranged in the axial direction of the transmission shaft, and when the axial intervals of the groups of annular blades are different, single cutting can be realized to form products with different specifications, so that the purpose of producing products with different specifications simultaneously by a single machine can be realized.

(5) The lithium battery electrode slice slitting device can realize the application of annular blades with different specifications on the same tool rest, so that the application range of the slitting device is wider.

(6) According to the lithium battery electrode slice cutting device, the hydraulic locking tool apron and the transmission shaft are in clearance fit, so that the hydraulic locking tool apron can be suitable for transmission shafts with different shaft diameters, and the application range is wider.

(7) When the lithium battery electrode slice slitting device is used for cutting products with different specifications, the pressure on the hydraulic locking cutter holder is reduced by the pressure adjusting device, so that the hydraulic locking cutter holder releases the transmission shaft, then the hydraulic locking cutter holder slides on the transmission shaft, the distance between the two hydraulic locking cutter holders is adjusted, the lithium battery electrode slice slitting device meets the specifications of the products to be produced, and compared with the traditional spacer sleeve replacement, the lithium battery electrode slice slitting device saves more manpower and time, and greatly improves the yield.

(8) According to the lithium battery electrode slice slitting device, the exhaust holes are formed in the hydraulic locking tool apron beside the compression bolt holes, and the exhaust holes are communicated with the left oil guide holes through adjusting the compression bolts, so that air in the sealed cavity is exhausted from the exhaust holes and the compression bolt holes, oil filling and exhausting speeds are relatively high, the discharge amount of hydraulic oil in the oil filling process is effectively reduced, and the oil use cost is saved.

(9) In the long-term use process, a small amount of air can be separated out from the hydraulic oil to influence the hydraulic enclasping effect of the hydraulic locking tool apron, the hydraulic locking tool apron is provided with the exhaust hole beside the compression bolt hole, the exhaust hole can be communicated with the left oil guide hole through adjusting the compression bolt, the hydraulic oil is pressurized through the pressure adjusting bolt, a small amount of air can be separated out from the hydraulic oil through the exhaust hole and the compression bolt hole to be discharged, the oil output can be effectively controlled, the hydraulic oil is not required to be added, meanwhile, the hydraulic locking tool apron is not required to be taken off from the transmission shaft during the exhaust, the labor and time are saved, and the yield is relatively improved.

(10) The hydraulic locking tool apron is provided with the limit bolt, the limit bolt is used for limiting the screwing-out travel of the pressure adjusting bolt and the compression bolt, so that the pressure adjusting bolt and the compression bolt cannot be completely screwed out in the pressure adjusting process and the exhaust process, the phenomenon that hydraulic oil in the closed cavity flows out and simultaneously enters air due to excessive screwing-out and falling-off during the pressure adjusting bolt and the compression bolt adjusting process is avoided, the oil cost is saved, the time for supplementing the hydraulic oil is shortened, and the yield is relatively improved.

(11) The hydraulic locking tool apron is provided with the tool loading step and the locking sleeve, so that the annular blade can be directly fixed on the hydraulic locking tool apron, and when the annular blade is replaced, the annular blade is only required to be taken down, the hydraulic locking tool apron is not required to be taken down, and compared with the traditional replacement mode, the hydraulic locking tool apron has the advantages that the labor and time are saved, and the yield is relatively improved.

Drawings

FIG. 1 is a first expression of a schematic structural diagram of the invention;

FIG. 2 is a second expression of the structural schematic of the invention;

FIG. 3 is a third expression of the structural schematic of the invention;

FIG. 4 is a fourth expression of the structural schematic of the invention;

FIG. 5 is a fifth expression of the structural schematic of the invention;

FIG. 6 is a schematic diagram of a grating structure according to the present invention;

FIG. 7 is a schematic view of the structure of the tool holder;

FIG. 8 is a schematic view of a slitting device employing spacers to position the annular blades;

FIG. 9 is a half cross-sectional view of the hydraulic lock knife holder;

FIG. 10 is a partial cross-sectional view of the positions of the oil charge and exhaust of the hydraulic lock tool holder;

FIG. 11 is a partial cross-sectional view of the locations of the oil charge passage and the exhaust passage on the jacket;

FIG. 12 is a full cross-sectional view of the inner sleeve;

FIG. 13 is a full cross-sectional view of the outer sleeve;

FIG. 14 is a partial cross-sectional view of the oil charge and exhaust passages of the hydraulic lock tool holder in communication with the closed cavity;

FIG. 15 is a cross-sectional half view of the vent passage of the hydraulic lock knife holder in communication with the closed cavity;

in the figure: 1. a tool holder; 2. a tool apron is locked hydraulically; 3. an annular blade; 4. a grating; 5. a spacer bush; 11. an upper main shaft; 12. a support base; 13. a lower spindle; 14. a mounting base plate; 15. a reference base; 21. an inner sleeve; 22. a connecting bolt; 23 coats; 24. an O-ring; 25. a locking sleeve; 26. sealing the push plug; 27. sealing the movable core; 28. a pressure adjusting bolt; 29. sealing the ball; 41. a blocking finger; 210. a compression bolt; 211. a limit bolt; 212. sealing the cavity; 231. an exhaust hole; 232. a right oil guide hole; 233. sealing the piston hole; 234. a pressure adjusting bolt hole; 235. a left oil guide hole; 236. compressing the bolt hole; 237. a limit bolt hole; 2102. an inner sleeve annular square groove; 2302. a knife loading step; 2303. mounting a locking sleeve step; 2304. an O-ring groove; 2305. and an annular square groove is sleeved outside the sleeve.

Detailed Description

For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.

Example 1

The lithium battery electrode slice slitting device comprises a knife rest 1, wherein a transmission shaft is arranged on the knife rest 1 and driven by a motor, the transmission shaft comprises an upper main shaft 11 and a lower main shaft 13, one ends of the upper main shaft 11 and the lower main shaft 13 are connected with a reference seat 15, the other ends of the upper main shaft 11 and the lower main shaft 13 are connected with a supporting seat 12, rolling bearings are arranged on the reference seat 15 and the supporting seat 12, the upper main shaft 11 and the lower main shaft 12 are respectively connected with the rolling bearings on the reference seat 15 and the supporting seat 12 in a matched manner, a mounting bottom plate 14 is arranged at the lower ends of the reference seat 15 and the supporting seat 12, and the reference seat 15 and the supporting seat 12 are fixedly connected with the mounting bottom plate 14 through bolts or are fixedly connected in a welding manner; the upper spindle 11 and the lower spindle 13 are both sleeved with the hydraulic locking tool apron 2, the radius of the inner wall of the hydraulic locking tool apron 2 is larger than the radius of the transmission shaft, and the difference value between the radius of the inner wall of the hydraulic locking tool apron 2 and the radius of the transmission shaft is within 3mm in the embodiment so as to avoid damage caused by overlarge deformation of the hydraulic locking tool apron and influence on the service life; the inner wall of the hydraulic locking tool apron 2 is deformed by utilizing hydraulic pressure to reduce the inner diameter or restore the original state, so that the purpose of holding or loosening the transmission shaft and further achieving the purpose of locking or unlocking is achieved, and when the hydraulic locking tool apron 2 is in the loosening state, the hydraulic locking tool apron 2 is in clearance fit with the transmission shaft, so that the hydraulic locking tool apron can move on the transmission shaft along the axial direction at will, and further the purpose of fixing the hydraulic locking tool apron at any position on the transmission shaft can be achieved; the upper main shaft 11 and the lower main shaft 13 are respectively provided with an annular blade 3, the annular blades 3 can be fixed on the hydraulic locking tool apron 2 and then fixed on a transmission shaft through the hydraulic locking tool apron 2, and at the moment, the radius of the inner annular surface of the annular blades 3 is the same as the radius of the outer ring of the position of the annular blades 3 arranged on the hydraulic locking tool apron 2 so as to ensure that the axes of the annular blades 3 and the transmission shaft are collinear and prevent the annular blades 3 from eccentric rotation; or the annular blade 3 is directly arranged on a transmission shaft, and then is propped against and fixed by the hydraulic locking tool apron 2 at two sides (the mode of fixing the annular blade by the spacer bush is the same as that of the annular blade), at the moment, the radius of the inner annular surface of the annular blade 3 is the same as that of the transmission shaft, so that the annular blade 3 is prevented from eccentric rotation to influence the product quality and damage the annular blade 3; the annular blades 3 on the upper main shaft 11 and the annular blades 3 on the lower main shaft 13 are in one-to-one correspondence and are arranged, the annular blades 3 on the lower main shaft 13 are positioned right below the annular blades 3 on the upper main shaft 11, a gap is formed between the upper annular blades 3 and the lower annular blades 3 for cutting electrode plates, the gap is generally smaller than 1/3 of the thickness of a material plate, and the material plate with larger or smaller thickness is set according to actual conditions so as to effectively cut the material plate; the rotation directions of the upper main shaft 11 and the lower main shaft 13 are opposite to ensure that the running direction of the upper annular blade 3 and the lower annular blade 3 at the joint of the upper annular blade and the lower annular blade are consistent with the feeding direction of the material plate in the feeding process of the material plate, so that the reverse cutting is avoided.

Example 2

The device for slitting electrode slices of a lithium battery in this embodiment has the same basic structure as that in embodiment 1, and is different and improved in that: as shown in any one of fig. 1, 4 or 5, the upper spindle 11 and the lower spindle 13 are arranged in parallel along the axial direction, the upper spindle 11 is located right above the lower spindle 13, the hydraulic locking tool holders 2 on the upper spindle 11 and the hydraulic locking tool holders 2 on the lower spindle 13 are arranged in a one-to-one correspondence, which can be understood as that the hydraulic locking tool holders 2 on the upper spindle 11 and the hydraulic locking tool holders 2 on the lower spindle 13 are arranged in groups, the annular blade 3 is fixed on the hydraulic locking tool holders 2, the annular blade 3 on the upper spindle 11 is guaranteed to be in one-to-one correspondence with the annular blade 3 on the lower spindle 13, and the hydraulic locking tool holders 2 and the annular blade 3 are simultaneously moved and positioned.

Example 3

The device for slitting electrode slices of lithium battery in this embodiment has the same basic structure as that in embodiment 2, and is different and improved in that: as shown in fig. 2, the upper spindle 11 and the lower spindle 13 are respectively provided with a plurality of pairs of hydraulic locking tool holders 2, the two hydraulic locking tool holders 2 of each pair are close to each other, the axial distance between the two hydraulic locking tool holders is the thickness of the annular blade 3, the annular blade 3 is arranged between the two hydraulic locking tool holders 2, the two hydraulic locking tool holders 2 are mutually abutted and fastened, the radius of the inner ring surface of the annular blade 3 is the same as the radius of the transmission shaft, so that the axis of the annular blade 3 is collinear with the axis of the transmission shaft, and the phenomenon that the product quality is influenced and the annular blade 3 is damaged due to eccentric rotation of the annular blade 3 is avoided; as shown in fig. 3, the annular blade 3 on the upper spindle 11 or the lower spindle 13 may be fixed on the hydraulic locking tool apron 2, at this time, the radius of the inner annular surface of the annular blade 3 should be the same as the radius of the position of the fixed annular blade 3 on the hydraulic locking tool apron 2, so as to ensure that the annular blade 3 does not undergo radial displacement, avoid eccentric rotation, and the radius of the inner annular surface of the annular blade 3 on the other transmission shaft is the same as the radius of the transmission shaft, and the two hydraulic locking tool apron 2 are fixed in a mutually abutting manner. Therefore, the lithium battery electrode slice cutting device can be suitable for the annular blades 3 with various specifications, and has wider application range.

Example 4

The basic structure of the lithium battery electrode sheet slitting device of the embodiment is the same as that of embodiment 3, and the difference and improvement are that: as shown in fig. 4, the upper spindle 11 and the lower spindle 13 are respectively provided with a plurality of hydraulic locking tool holders 2, the annular blades 3 are fixed on the hydraulic locking tool holders 2, the axial distance between the annular blades 3 is the same and the width of the cut product is the same, under the condition that the length of the transmission shaft is fixed, as the hydraulic locking tool holders 2 are positioned to save the axial space of the transmission shaft compared with the positioning of the traditional spacer bush 5, the purpose of installing a plurality of groups of annular blades 3 for matching use can be realized, thereby realizing the purpose of cutting more products at a time, in the embodiment, the axial width of the hydraulic locking tool holders is 4.5cm, when the hydraulic locking tool holders are applied to the transmission shaft of 1.1m for cutting products with the width of 20cm, 11 groups of annular blades 3 can be simultaneously arranged, 10 products can be produced by single cutting, and the production efficiency is greatly improved; in addition, as shown in fig. 5, the axial spacing between the annular blades 3 can be respectively set to be the widths of different product specifications from left to right, so that the purpose of single-cut products with various specifications is realized, the single machine production with multiple orders at the same time can be met, and meanwhile, the production efficiency is greatly improved.

Example 5

The basic structure of the lithium battery electrode sheet slitting device of this embodiment is the same as that of

embodiment

3 or 4, and the difference and improvement are that: as shown in fig. 9, the hydraulic locking tool apron 2 comprises an inner sleeve 21 and an outer sleeve 23, wherein the inner sleeve 21 and the outer sleeve 23 are cylindrical, the inner sleeve 21 is inserted into the outer sleeve 23, central axes of the inner sleeve 21 and the outer sleeve 23 are overlapped, the inner sleeve 21 and the outer sleeve 23 are connected in a bolt mode, two ends of the inner sleeve 21 and the outer sleeve 23 in the central axis direction are in interference fit, the middle part is in clearance fit, after the inner sleeve 21 is assembled and connected with the outer sleeve 23, a sealed cavity 212 is formed by a fit clearance between the outer wall of the inner sleeve 21 and the inner wall of the outer sleeve 23, and the sealed cavity 212 is used for filling liquid with good fluidity, such as hydraulic oil and the like. In order to ensure that the hydraulic locking tool apron can effectively hug the transmission shaft on the tool rest 1 and avoid relative sliding between the hydraulic locking tool apron and the transmission shaft during high-speed rotation, the axial width of the closed cavity 212 is more than 1/3 of the axial width of the hydraulic locking tool apron, and in the embodiment, the axial width of the hydraulic locking tool apron is 45mm and the axial width of the closed cavity 212 is 18mm; the wall thickness of the inner sleeve 21 corresponding to the position of the closed cavity 212 is easy to deform and not easy to damage due to being pressed, and the inner wall of the inner sleeve 21 cannot be damaged due to large deformation because the reverse acting force is generated on the inner wall of the inner sleeve 21 by the transmission shaft when the hydraulic locking tool apron is arranged on the transmission shaft, so that the wall thickness of the inner sleeve 21 corresponding to the position of the closed cavity 212 is generally 2.5-3.5 mm, and the wall thickness of the inner sleeve 21 corresponding to the position of the closed cavity 212 in the embodiment is 3mm; the wall thickness of the outer sleeve 23 corresponding to the position of the closed cavity 212 is 12mm; the inner sleeve 21 is made of spring steel materials with good fatigue strength, such as 65Mn steel and the like, so that the inner sleeve 21 is not easy to damage after the pressure is repeatedly increased and decreased. Fatigue tests prove that the failure cut-off times of the hydraulic locking tool apron during repeated pressurization and depressurization are more than 20000 times. Because of the property of being difficult to compress, when the liquid in the airtight cavity 212 is pressurized, the liquid can press the inner wall around the airtight cavity 212 to deform, because the wall thickness of the outer sleeve 23 at the corresponding position of the airtight cavity 212 is much larger than that of the inner sleeve 21 and is 4 times larger than that of the inner sleeve 21, the rigidity is relatively much larger, the deformation is mainly concentrated on the inner wall of the inner sleeve 21, the cylinder diameter on the inner sleeve 21 is reduced and clasped to the transmission shaft, the axial width of the transmission shaft clasped by the inner sleeve 21 is about 2/5 of the axial width of the hydraulic locking tool apron, and as can be understood, the larger the contact area of two objects is under the same pressure, the larger the friction force is between the two is, the locking effect is better, so that the hydraulic locking tool apron can still be effectively locked in a high-speed rotation state, the dimension fluctuation of a cut product caused by the deviation of the hydraulic locking tool apron in the production process is avoided, and the consistency of the cut product is ensured.

As shown in fig. 10, a plurality of holes are formed in the outer wall of the outer sleeve 23, and a pressure adjusting device and an exhaust device are respectively arranged in the holes and are communicated with the closed cavity 212 through oil guide holes. The pressure adjusting device is used for adjusting the pressure in the closed cavity 212, when the pressure in the closed cavity 212 is increased by the pressure adjusting device, the hydraulic locking tool apron is tightly held on the transmission shaft, when the pressure in the closed cavity 212 is reduced by the pressure adjusting device, the inner wall of the inner sleeve 21, which deforms, rebounds to restore to the original state, the holding state is relieved, and the hydraulic locking tool apron can move at any position on the transmission shaft, so that the purpose of moving and locking the hydraulic locking tool apron at any position on the transmission shaft can be achieved by the pressure increasing and the pressure reducing of the pressure adjusting device. The exhaust device is used for exhausting air in the closed cavity 212, wherein the air comprises air in the closed cavity 212 before filling hydraulic oil and other liquid and air precipitated after the filled hydraulic oil and other liquid stands for a long time. It can be understood that air is an easily compressible fluid, when air exists in the closed cavity 212, the air in the closed cavity 212 is compressed first when the air is pressurized in the closed cavity 212, and the pressurized stress cannot be directly transferred to the inner wall of the inner sleeve 21, so that the deformation amount of the inner wall of the inner sleeve 21 is greatly reduced, and the hydraulic locking tool apron cannot be locked. After the exhaust device is additionally arranged, air impurities can be timely removed in the processing and using processes of the hydraulic locking tool apron, and the air residual quantity of the closed cavity 212 is almost zero, so that the phenomenon that the hydraulic locking tool apron cannot be locked due to gas compression is avoided, and the locking and fixing effects are better.

Example 6

The basic structure of the lithium battery electrode sheet slitting device of the embodiment is the same as that of embodiment 5, and the difference and improvement are that: as shown in fig. 13, only the inner wall of the outer sleeve 23 is provided with an outer sleeve annular square groove 2305, the axial width of the outer sleeve 23 annular square groove 2305 is 16-20 mm, the depth is 5mm, after the inner sleeve 21 is connected with the outer sleeve 23, the outer wall of the inner sleeve 21 is matched with the outer sleeve annular square groove 2305 on the outer sleeve 23 to form an annular closed cavity 212 with the same space as the outer sleeve annular square groove 2305, the closed cavity 212 is used for filling liquid with better flowability, such as hydraulic oil, and the cross section size of the closed cavity 212 is 18×5mm in the embodiment; the inner wall of the inner sleeve 21 is easy to deform and not easy to break under pressure, the wall thickness is generally 2.5-3.5 mm, and the wall thickness of the inner sleeve 21 in the embodiment is 3mm; the wall thickness of the outer sleeve 23 corresponding to the bottom surface of the outer sleeve annular square groove 2305 on the outer sleeve 23 is 12mm, which is 4 times that of the inner sleeve 21, the rigidity is relatively much larger, and the deformation is mainly concentrated on the inner wall of the inner sleeve 21 during pressurization. Because the wall thickness of the inner sleeves 21 at the two sides of the closed cavity 212 is the same as the wall thickness of the inner sleeves 21 corresponding to the cavity wall of the closed cavity 212, when the inner sleeves 21 corresponding to the cavity wall of the closed cavity 212 are pressed, the inner walls of the inner sleeves 21 at the two sides of the closed cavity 212 are deformed by stress diffusion, the axial width of the inner sleeves 21 holding the transmission shaft can reach 2/3 of the axial width of the hydraulic locking tool apron, it can be understood that the larger the contact area of two objects is under the same pressure, the larger the friction force between the two objects is, the better the locking effect is, so that the hydraulic locking tool apron can be still effectively locked in a high-speed rotation state, and the dimension fluctuation of a cut product caused by the deflection of the hydraulic locking tool apron in the production process is avoided, thereby ensuring the consistency of the cut product.

Example 7

The basic structure of the lithium battery electrode sheet slitting device of the embodiment is the same as that of embodiment 6, and the difference and improvement are that: as shown in fig. 12, only the outer wall of the inner sleeve 21 is provided with an inner sleeve annular square groove 2102, the axial width of the inner sleeve annular square groove 2102 is 16-20 mm, and the depth is 5mm; the inner wall of the inner sleeve 21 corresponding to the bottom surface of the inner sleeve annular square groove 2102 is easy to deform and not easy to break when pressed, the wall thickness of the inner sleeve 21 is generally 2.5-3.5 mm, the wall thickness of the inner sleeve 21 is 3mm in the embodiment, after the inner sleeve 21 is connected with the outer sleeve 23, the inner sleeve annular square groove 2102 on the outer wall of the inner sleeve 21 is matched with the inner wall of the outer sleeve 23 to form an annular closed cavity 212, the closed cavity 212 is used for filling liquid with good fluidity, such as hydraulic oil, and the cross section size of the closed cavity 212 is 18×5mm in the embodiment. When the inner wall of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212 deforms when being pressed, the inner walls of the inner sleeves 21 on two sides of the closed cavity 212 are driven to deform, the wall thickness of the inner sleeves 21 on two sides of the closed cavity 212 is 8mm and is far larger than the wall thickness of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212, the rigidity is relatively larger, the stress at the inner wall of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212 is relatively concentrated, and the deformation part of the inner wall of the inner sleeve 21 is mainly concentrated at the position corresponding to the cavity wall of the closed cavity 212 and cannot be outwards diffused, so that a gap at the matching part between the inner sleeve 21 and the outer sleeve 23 cannot be expanded greatly, and the possibility of oil leakage and air leakage at the matching part between the inner sleeve 21 and the outer sleeve 23 is avoided.

Example 8

The basic structure of the lithium battery electrode sheet slitting device of the embodiment is the same as that of embodiment 7, and the difference and improvement are that: as shown in fig. 12 and 13, an inner sleeve annular square groove 2102 is formed on the outer wall of the inner sleeve 21, the depth is 3mm, an outer sleeve annular square groove 2305 is formed on the inner wall of the outer sleeve 23, the depth is 2mm, and the axial widths of the inner sleeve annular square groove 2102 and the outer sleeve annular square groove 2305 are the same and are 16-20 mm; the inner wall of the inner sleeve 21 corresponding to the bottom surface of the inner sleeve annular square groove 2102 is easy to deform and not easy to break when pressed, the wall thickness is generally 2.5-3.5 mm, and the wall thickness of the inner sleeve 21 is 3mm in the embodiment; as shown in fig. 9, after the inner sleeve 21 is connected with the outer sleeve 23, an inner sleeve annular square groove 2102 on the outer wall of the inner sleeve 21 is matched with an outer sleeve annular square groove 2305 on the outer sleeve 23 to form an annular closed cavity 212, and the closed cavity 212 is used for filling liquid with good fluidity, such as hydraulic oil, and in this embodiment, the cross section size of the closed cavity 212 is 18×5mm. Because the wall thickness of the inner sleeve 21 at two sides of the closed cavity 212 is larger than the wall thickness of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212, the difference between the wall thickness of the inner sleeve 21 at two sides of the closed cavity 212 and the wall thickness of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212 is smaller than that in the embodiment 6, so that the gap at the matching position between the inner sleeve 21 and the outer sleeve 23 can not be expanded as much as that in the embodiment 5 when being pressed, the possibility of oil leakage and air leakage at the matching position between the inner sleeve 21 and the outer sleeve 23 is avoided, the stress concentration at the inner wall of the inner sleeve 21 corresponding to the cavity wall of the closed cavity 212 is relatively reduced compared with that in the embodiment 6 when being pressed, the axial deformation width of the inner wall of the inner sleeve 21 at two sides of the closed cavity 212 is relatively increased, the area of the inner sleeve 21 is relatively larger, the axial holding width is about 1/2 of the axial width of the hydraulic locking tool apron, and the holding effect is better.

Example 9

The lithium battery electrode sheet slitting device of the embodiment is different from and improved on the basis of any one of embodiments 6, 7 or 8 in that: as shown in fig. 9, the two sides of the closed cavity 212 along the axial direction of the inner sleeve 21 are respectively provided with an O-ring 24, the O-rings 24 are used for sealing the liquid in the closed cavity 212, so that the liquid cannot seep out through the matching position between the inner sleeve 21 and the outer sleeve 23, and meanwhile, the outside air cannot infiltrate into the closed cavity 212 through the matching position between the inner sleeve 21 and the outer sleeve 23, the O-rings 24 are made of elastic materials with good sealing performance, such as butyl cyanide rubber, the O-rings 24 are clamped in grooves between the outer wall of the inner sleeve 21 and the inner wall of the outer sleeve 23, the grooves can be annular grooves with semicircular cross sections, which are arranged on the inner wall of the outer sleeve 21 or on the outer wall of the inner sleeve 21, or the annular grooves with semicircular cross sections on the inner wall of the inner sleeve 21 jointly form annular grooves with circular cross sections, when the grooves are annular grooves with semicircular cross sections on the inner wall of the inner sleeve 21 or the outer wall of the inner sleeve 21, the depth of the annular grooves are smaller than the diameter of the cross sections of the O-rings 24, and when the grooves are the grooves with semicircular cross sections on the outer wall of the inner sleeve 21 and the inner wall of the inner sleeve 23 are formed into the annular grooves with the semicircular cross sections, and the O-ring grooves with the sealing effect is kept in a good compression state when the diameter is kept between the annular grooves and the inner wall of the annular grooves and the inner sleeve and the annular grooves with the annular cross section is pressed.

Example 10

The lithium battery electrode sheet slitting device of the embodiment is different from and improved in that on the basis of embodiment 9: the jacket 23 is provided with an oil filling channel and an exhaust channel, the oil filling channel and the exhaust channel are both communicated with the closed cavity 212, the oil filling channel and the exhaust channel are round holes formed in the jacket 23, one end of each round hole is led into the closed cavity 212, the other end of each round hole is communicated with the outside, the oil filling channel is used for filling hydraulic oil into the closed cavity 212, and the exhaust channel is used for exhausting air in the closed cavity 212.

As shown in fig. 11 and 14, the port of the exhaust channel connected to the inside of the closed cavity 212 is arranged on one side of the cavity wall of the closed cavity 212 along the axial direction of the inner sleeve 21, the port of the oil filling channel connected to the inside of the closed cavity 212 is arranged on the other side of the inside of the closed cavity 212 along the axial direction of the inner sleeve 21, when the hydraulic locking tool apron is vertically arranged along the central axis, and the exhaust channel is positioned above the oil filling channel, hydraulic oil is slowly filled into the inside of the closed cavity 212, and due to the action of gravity, air is always positioned above the hydraulic oil in the closed cavity 212, and the air in the closed cavity 212 can be gradually discharged from the exhaust channel in the process of filling the hydraulic oil, and the air has no residue. It can be understood that air is an easily compressible fluid, when air exists in the closed cavity 212, the air in the closed cavity 212 is pressurized, and the air in the closed cavity 212 is compressed first, so that the pressurized stress cannot be directly transferred to the inner wall of the inner sleeve 21, and the deformation amount of the inner wall of the inner sleeve 21 is greatly reduced, so that the hydraulic locking tool apron cannot be locked. After the exhaust channel is additionally arranged, air impurities can be timely removed in the processing and using processes of the hydraulic locking tool apron, and the air residual quantity of the closed cavity 212 is almost zero, so that the phenomenon that the hydraulic locking tool apron cannot be locked due to gas compression is avoided, and the locking and fixing effects are better.

Example 11

The lithium battery electrode sheet slitting device of the embodiment is different from and improved in that on the basis of embodiment 10: as shown in fig. 11 and 15, the vent passage opening is arranged on the outer circular surface of the annular closed cavity 212, the axis of the vent passage is tangential to the outer circular surface of the annular closed cavity 212, the oil filling passage is positioned on the other side of the closed cavity 212 along the normal direction of the axis of the inner sleeve 21, when the hydraulic locking tool apron is horizontally arranged along the central axis and the port of the vent passage communicated to the closed cavity 212 is ensured to be positioned right above the closed cavity 212, the port of the oil filling passage communicated to the closed cavity 212 is positioned right below the closed cavity 212, hydraulic oil is slowly filled into the closed cavity 212, and due to the action of gravity, air is always positioned above the hydraulic oil in the closed cavity 212, and the air in the closed cavity 212 can be gradually discharged from the vent passage in the process of filling the hydraulic oil. When the hydraulic locking tool apron arranged on the transmission shaft is required to exhaust, the transmission shaft is only required to be adjusted to enable the exhaust passage of the hydraulic locking tool apron to be communicated with the port in the closed cavity 212 to be positioned right above the closed cavity 212, and air can be slowly gathered to the exhaust passage port because of light liquid and heavy air, and at the moment, the air can be exhausted from the exhaust passage only by pressurizing the inside of the closed cavity 212 through the pressure adjusting device, so that the air separated out of hydraulic oil in the closed cavity 212 can be effectively exhausted under the condition that the hydraulic locking tool apron is not taken down from the transmission shaft, and the aim of avoiding gas compression in the closed cavity 212 is fulfilled.

Example 12

The lithium battery electrode sheet slitting device of the embodiment is different from and improved on the basis of

embodiments

10 and 11 in that: as shown in fig. 11, the oil charging channel includes a right oil guiding hole 232, a sealing piston hole 233 and a pressure adjusting bolt hole 234, the right oil guiding hole 232, the sealing piston hole 233 and the pressure adjusting bolt hole 234 are sequentially communicated, the hole diameters of the sealing piston hole 233 and the pressure adjusting bolt hole 234 are sequentially increased to be in a step shape, a taper section is arranged at the joint of the sealing piston hole 233 and the right oil guiding hole 232, and the right oil guiding hole 232 is communicated with the closed cavity 212.

As shown in fig. 11, the exhaust passage includes a left oil guiding hole 235 and a compression bolt hole 236, the left oil guiding hole 235 and the closed cavity 212 are sequentially communicated, the aperture of the compression bolt hole 236 is larger than that of the left oil guiding hole 235, a tapered section is arranged at the joint of the compression bolt hole 236 and the left oil guiding hole 235, an exhaust hole 231 is arranged beside the compression bolt hole 236, the exhaust hole 231 is communicated with the bottom of the compression bolt hole 236, and the aperture of the exhaust hole 231 is 2mm.

When hydraulic oil is filled into the closed cavity 212, the hydraulic oil sequentially passes through the pressure adjusting bolt hole 234, the sealing piston hole 233 and the right oil guide hole 232 and then enters the closed cavity 212, air in the closed cavity 212 is gradually driven to one side of an inlet of an exhaust channel, air in the closed cavity 212 enters the compression bolt hole 236 through the left oil guide hole 235, then part of the air enters an exhaust hole 231 at the bottom of the compression bolt hole 236 and is exhausted from the exhaust hole 231, and the other part of the air is exhausted from a matching gap between the compression bolt hole 236 and the compression bolt 210. The vent 231 is arranged to avoid the situation that air in the closed cavity 212 cannot be discharged out due to the fact that the compression bolt holes 236 are too tightly matched with the compression bolts 210, and meanwhile oil filling and exhausting efficiency is improved.

Example 13

The lithium battery electrode sheet slitting device of the embodiment is different from and improved on the basis of embodiment 12 in that: as shown in fig. 10, the pressure adjusting device includes a seal pushing plug 26, a seal movable core 27 and a pressure adjusting bolt 28, where the seal pushing plug 26 and the seal movable core 27 are sequentially inserted into the seal piston hole 233, the seal pushing plug 26 is made of an elastic material with good sealing performance, such as butyl cyanide rubber, the seal pushing plug 26 is in interference fit with the seal piston hole 233 so as to ensure a good sealing effect, the diameter of the seal pushing plug 26 is greater than the aperture of the right oil guide hole 232, the seal pushing plug 26 is prevented from entering the sealed cavity 212 through the right oil guide hole 232, the head of the seal pushing plug 26 is tapered, the tapered surface of the head of the seal pushing plug 26 is matched with the tapered surface of the tapered section where the seal piston hole 233 and the right oil guide hole 232 are connected, the seal movable core 27 is made of a steel material, the pressure adjusting bolt 28 is an M8 bolt, the pressure adjusting bolt 28 is screwed into the pressure adjusting bolt hole 234 on the outer sleeve 23, and the pressure adjusting bolt 28 is connected with the outer sleeve 23 in a threaded manner.

As shown in fig. 10, the exhaust device includes a sealing ball 29 and a compression bolt 210, where the sealing ball 29 and the compression bolt 210 are sequentially inserted into the compression bolt hole 236, the sealing ball 29 is a spherical steel ball or a rubber ball, the sealing ball 29 is located at the bottom of the compression bolt hole 236, the diameter of the sealing ball 29 is greater than the diameter of the left oil guiding hole 235 and the hole diameter of the exhaust hole 231, so that the sealing ball 29 is prevented from entering the closed cavity 212 through the left oil guiding hole 235, the compression bolt 210 is an M6 bolt, the compression bolt 210 is screwed into the compression bolt hole 236 on the outer sleeve 23, and the compression bolt 210 is connected with the outer sleeve 23 in a threaded manner.

Before hydraulic oil is filled into the closed cavity 212, the compression bolt 210 is kept in a half-screwing state, the sealing ball 29 can roll back and forth at the bottom of the compression bolt hole 236, and the sealing pushing plug 26, the sealing movable core 27 and the pressure adjusting bolt 28 are all arranged in the oil filling channel. When the hydraulic oil is filled, the hydraulic oil sequentially passes through the pressure adjusting bolt hole 234, the sealing piston hole 233 and the right oil guide hole 232 and then enters the closed cavity 212, air in the closed cavity 212 is gradually driven to one side of an inlet of the exhaust channel, the air pressure in the closed cavity 212 is relatively increased, the steel ball is pressed to roll towards one side of the compression bolt 210 under the action of air pressure, at the moment, the orifice of the exhaust hole 231 at the bottom of the compression bolt hole 236 is communicated with the left oil guide hole 235, air in the closed cavity 212 enters the exhaust hole 231 through the left oil guide hole 235 and is discharged, and meanwhile, a part of air is oozed out through a matching gap between the compression bolt 210 and the compression bolt hole 236, and when the outer orifices of the exhaust hole 231 and the compression bolt hole 236 slowly ooze out of the hydraulic oil and no longer intermittently ooze out of air bubbles, the hydraulic oil in the closed cavity 212 can be regarded as full. Because the fit clearance between the M6 bolt and the bolt hole is generally within 0.5mm, the exhaust speed is low by simply relying on the fit clearance between the bolt and the bolt hole, and the exhaust speed is easy to block, and after the exhaust hole 231 with the aperture of 2mm is increased, the exhaust speed is increased by more than 2 times, so that the oil filling process time is greatly shortened, and meanwhile, the occurrence of the blocking condition of the exhaust hole is reduced. After hydraulic oil is filled, the sealing pushing plug 26 and the sealing movable core 27 are sequentially inserted into the oil filling channel, the pressure adjusting bolt 28 is screwed into the pressure adjusting bolt hole 234, and the pressure adjusting bolt 28 is guaranteed to be in a partially screwed state, so that the pressure adjusting bolt 28 can be further screwed in when the pressure in the sealed cavity 212 needs to be increased, meanwhile, the compression bolt 210 is screwed, the compression bolt 210 compresses the sealing ball 29, the spherical surface of the sealing ball 29 is compressed on the tapered surface between the compression bolt hole 236 and the left oil guide hole 235, and the communication between the exhaust hole 231 and the compression bolt hole 236 is blocked, so that a good sealing effect is achieved.

In the long-term use process, a small amount of air is separated out from hydraulic oil, the air is easy to compress, when the air exists in the closed cavity 212, the air in the closed cavity 212 is compressed firstly, the compression stress cannot be directly transferred to the inner wall of the inner sleeve 21, the deformation amount of the inner wall of the inner sleeve 21 is greatly reduced, the hydraulic locking tool apron cannot be locked, the use of the hydraulic locking tool apron is affected, at the moment, only the exhaust port of the hydraulic locking tool apron is regulated to be right above the hydraulic locking tool apron, then the hydraulic locking tool apron is kept stand for a while, the air in the closed cavity 212 is gathered to the exhaust port, then a part of the compression bolt 210 is screwed out, the sealing ball 29 can roll back and forth at the bottom of the compression bolt hole 236, so that the exhaust hole 231 is communicated with the left oil guide hole 235, then the pressure regulating bolt 28 is screwed into a part, the air in the closed cavity 212 is pressed, the exhaust hole 231 is discharged, and when the exhaust hole 231 is not in the form of bubbles, the compression bolt 210 is screwed. Therefore, the hydraulic locking tool apron locking force can be prevented from being reduced after long-time use, meanwhile, the loss of hydraulic oil is small, and the hydraulic oil does not need to be replenished.

Example 14

The lithium battery electrode sheet slitting device of the embodiment is different from and improved in that on the basis of embodiment 13: as shown in fig. 10, the pressure adjusting bolt 28 and the compression bolt 210 are provided with a limit bolt 211 along the unscrewing direction of the central axes thereof, the axes of the limit bolt 211 are respectively perpendicular to the axes of the pressure adjusting bolt 28 and the compression bolt 210, the limit bolt 211 is an M3 bolt, the limit bolt 211 is assembled on the outer sleeve 23, the limit bolt 211 is connected with the outer sleeve 23 in a threaded manner, the limit bolt 211 is used for limiting the unscrewing stroke of the pressure adjusting bolt 28 and the compression bolt 210, so that the pressure adjusting bolt 28 and the compression bolt 210 cannot be completely unscrewed in the pressure adjusting process and the exhausting process, and the phenomenon that excessive unscrewing occurs when the pressure adjusting bolt 28 and the compression bolt 210 are adjusted, so that hydraulic oil in the closed cavity 212 flows out and air enters is avoided.

Example 15

The lithium battery electrode sheet slitting device of the embodiment is different from and improved on the basis of embodiment 14 in that: the novel lock further comprises a lock sleeve 25, wherein the lock sleeve 25 is an annular plate, an inner ring surface is provided with an inner thread, as shown in fig. 13, one end of the outer sleeve 23 is provided with a lock sleeve mounting step 2303, the annular side surface of the lock sleeve mounting step 2303 is provided with an outer thread matched with the inner thread on the inner ring surface of the lock sleeve 25, and the lock sleeve 25 is connected with the outer sleeve 23 through the inner thread and the outer thread in a matched manner. The outer sleeve 23 is provided with a cutter loading step 2302, the cutter loading step 2302 is used for clamping the annular blade, the radius of the annular side face of the cutter loading step 2302 is equal to the radius of the inner circular face of the annular blade, so that the annular blade can be clamped on the cutter loading step 2302 and cannot radially displace, the locking sleeve 25 is connected with the outer sleeve 23, a cutter clamping groove is formed in the position of the cutter loading step 2302, the cutter clamping groove is used for fixing the annular blade, and the width of the cutter clamping groove is consistent with the thickness of the annular blade, so that the annular blade cannot axially move after being assembled.

Example 16

The lithium battery electrode sheet slitting device of the embodiment is different from and improved in that on the basis of embodiment 15: as shown in fig. 6, a grating 4 is arranged beside the tool rest 1, the grating 4 is used for measuring the axial distance between annular blades, the grating 4 comprises a display for a data display part and a blocking finger 41 for a data acquisition part, the blocking finger 41 and the display are connected together through a wire, the blocking finger 41 is fixed on a frame which can only move horizontally, and the end part of the blocking finger 41 extends between the upper main shaft 11 and the lower main shaft 13. During positioning, the hydraulic locking tool apron 2 at one side is locked, meanwhile, the numerical value on the display is cleared, then the stop finger 41 is moved until the numerical value on the display is changed to be the specification width of the slitting product, the next hydraulic locking tool apron 2 is moved to the position, the annular blade 3 on the next hydraulic locking tool apron is aligned with the stop finger 41, and then the hydraulic locking tool apron 2 is fixed. As the highest grating precision can reach 0.1 mu m, the use of the grating positioning annular blade 3 can greatly improve the production precision, thereby meeting the requirements of high-precision and high-quality product production.

The assembly process of the lithium battery electrode slice slitting device comprises the following specific steps:

Step one, assembling a hydraulic locking tool apron:

A. assembling an O-shaped ring: the O-shaped ring 24 is clamped into a groove on the inner wall of the outer sleeve 23 or the outer wall of the inner sleeve 21, the groove is an annular groove with a semicircular section, and the depth of the groove is smaller than the diameter of the section of the O-shaped ring 24;

B. assembling an inner sleeve: the inner sleeve 21 is inserted into the outer sleeve 23 and fixed by fastening bolts;

C. assembling an exhaust device: the sealing ball 29 is arranged in an exhaust passage on the outer sleeve 23, the sealing ball 29 is positioned at the bottom of the compression bolt hole 236, the compression bolt 210 is arranged in the compression bolt hole 236 at the opening of the exhaust passage, and the compression bolt 210 is ensured to be in a half-screwing state, so that the sealing ball 29 can roll back and forth at the bottom of the compression bolt hole 236;

D. hydraulic oil filling and exhaust processes: the hydraulic locking tool apron is vertically arranged along the central axis, the exhaust channel is positioned above the oil filling channel, hydraulic oil is slowly injected into the closed cavity 212 from the oil filling channel, the hydraulic oil sequentially passes through the pressure adjusting bolt hole 234, the sealing piston hole 233 and the right oil guide hole 232 and then enters the closed cavity 212, air in the closed cavity 212 is gradually driven to one side of an inlet of the exhaust channel, the air pressure in the closed cavity 212 is relatively increased, the steel ball is forced to roll towards one side of the compression bolt 210 under the action of air pressure, at the moment, the orifice of the exhaust hole 231 at the bottom of the compression bolt hole 236 is communicated with the left oil guide hole 235, air in the closed cavity 212 enters the exhaust hole 231 through the left oil guide hole 235 and is discharged, and meanwhile, a part of air is oozed out through a fit gap between the compression bolt 210 and the compression bolt hole 236, and when the exhaust hole 231 and the outer hole of the compression bolt hole 236 slowly oozes out hydraulic oil and no longer intermittently oozes out air bubbles, the hydraulic oil in the closed cavity 212 can be regarded as full, and then the filling of the hydraulic oil is stopped;

E. Assembling a pressure regulating device: the sealing pushing plug 26 and the sealing movable core 27 are sequentially inserted into the oil filling channel, then the pressure adjusting bolt 28 is arranged on the pressure adjusting bolt hole 234 of the vent channel opening, so that the pressure adjusting bolt 28 is in a partial screwing state, the pressure adjusting bolt 28 can be further screwed in when the pressure in the sealed cavity needs to be increased, meanwhile, the compression bolt 210 of the vent channel opening is screwed in, the compression bolt 210 compresses the sealing ball 29, the spherical surface of the sealing ball 29 is compressed on the tapered surface between the compression bolt hole 236 and the left oil guide hole 235, the communication between the vent hole 231 and the compression bolt hole 236 is blocked, and a sealing effect is formed;

F. the assembly of the limit bolts, namely, the limit bolts 211 are assembled on limit bolt holes 237 at the oil filling channel and the exhaust channel openings on the outer sleeve 23 and used for limiting the screwing-out of the pressure adjusting bolts 28 and the compression bolts 210, so that the situation that the pressure adjusting bolts 28 and the compression bolts 210 are screwed out and fall off due to vibration when the hydraulic locking tool apron is in a high-speed rotation state, and the whole hydraulic locking tool apron is invalid in the fixing of the transmission shaft is avoided;

G. fixing the annular blade: the annular blade is clamped on a cutter loading step 2302 on the outer sleeve 23, the radius of the annular side surface of the cutter loading step 2302 is equal to the radius of the inner circular surface of the annular blade, and the radial movement of the annular blade is prevented;

H. Assembling a locking sleeve: a locking sleeve 25 is arranged on the outer sleeve 23 and screwed, the locking sleeve 25 is connected with the outer sleeve 23 through threads, and the locking sleeve 25 is used for preventing the axial movement of the annular blade;

step two, the hydraulic locking tool apron 2 is respectively arranged on an upper main shaft 11 and a lower main shaft 13, and the hydraulic locking tool apron 2 is kept in a movable state on a transmission shaft;

step three, positioning and fixing the hydraulic locking tool apron 2:

A. the blocking finger 41 on the grating 4 is moved to the position of the annular blade 3 on the hydraulic locking blade holder 2 at one end of the lower spindle 13, the hydraulic locking blade holder 2 at the position is adjusted and locked, and meanwhile, the numerical value on the display of the grating 4 is cleared;

it can be understood that the annular blade 3 on the upper main shaft 11 can be positioned preferentially, the hydraulic locking blade holders 2 on the same transmission shaft can be positioned from the middle to two sides, the positioning is not sequential, and the positioning effect is not influenced;

B. the blocking finger 41 is moved along the axis direction of the lower spindle 13 until the grating reading change difference value is the specified size of the electrode plate, and then the position of the blocking finger 41 is locked;

C. the hydraulic locking tool apron 2 at the other end of the lower spindle 13 is moved, so that the annular blade 3 on the hydraulic locking tool apron 2 is aligned with the position of the blocking finger 41, and then the hydraulic locking tool apron 2 is locked; when the lower main shaft 13 is provided with a plurality of hydraulic locking tool holders 2, the hydraulic locking tool holders 2 on the lower main shaft 13, which are close to the position of the blocking finger 41, should be moved to enable the annular blade 3 on the lower main shaft to be locked to the position of the blocking finger 41;

D. Repeating the step A, B, C to sequentially position and lock the rest hydraulic locking tool apron 2 on the lower spindle 13, and paying attention to non-jumping positioning, so that waste materials are avoided during production;

E. the hydraulic locking tool apron 2 on the upper main shaft 11 is moved, so that the annular blades 3 on the upper main shaft 11 vertically correspond to the annular blades 3 on the lower main shaft 13 one by one, and the hydraulic locking tool apron 2 is locked; the annular blade 3 of the upper spindle 11 can also be positioned here in the manner described in A, B, C, D.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims

1. The lithium battery electrode slice cutting device comprises a tool rest (1), wherein a transmission shaft is arranged on the tool rest (1), the transmission shaft comprises an upper main shaft (11) and a lower main shaft (13), one ends of the upper main shaft (11) and the lower main shaft (13) are connected with a reference seat (15), and the other ends of the upper main shaft and the lower main shaft are connected with a supporting seat (12); the base seat (15) and the lower end of the supporting seat (12) are connected with a mounting bottom plate (14), and the device is characterized in that: the upper main shaft (11) and the lower main shaft (13) are respectively sleeved with a hydraulic locking tool apron (2), the upper main shaft (11) and the lower main shaft (13) are respectively provided with an annular blade (3), and the annular blades (3) on the upper main shaft (11) and the annular blades (3) on the lower main shaft (13) are in one-to-one corresponding matching arrangement;

The upper main shaft (11) and the lower main shaft (13) are arranged in parallel along the axial direction, the upper main shaft (11) is positioned right above the lower main shaft (13), the hydraulic locking tool apron (2) on the upper main shaft (11) and the hydraulic locking tool apron (2) on the lower main shaft (13) are arranged in a one-to-one correspondence, and the annular blade (3) is fixed on the hydraulic locking tool apron (2);

the hydraulic locking tool apron (2) comprises an inner sleeve (21) and an outer sleeve (23), wherein the inner sleeve (21) is inserted into the outer sleeve (23) and is detachably connected with the outer sleeve (23), a closed cavity (212) is formed between the outer wall of the inner sleeve (21) and the inner wall of the outer sleeve (23), a pressure regulating device and an exhaust device are arranged on the outer sleeve (23), and the pressure regulating device and the exhaust device are both communicated with the closed cavity (212) through oil guide holes;

an annular square groove is formed in the outer wall of the inner sleeve (21) and/or the inner wall of the outer sleeve (23), an annular closed cavity (212) is formed in the position of the annular square groove after the inner sleeve (21) is connected with the outer sleeve (23), O-shaped rings (24) are arranged on two sides of the closed cavity (212), the O-shaped rings (24) are clamped in grooves between the outer wall of the inner sleeve (21) and the inner wall of the outer sleeve (23), and the depth of the grooves is smaller than the diameter of the section of the O-shaped rings (24);

The jacket (23) is provided with an oil filling channel and an exhaust channel, wherein:

the oil charging channel comprises a right oil guide hole (232), a sealing piston hole (233) and a pressure adjusting bolt hole (234), wherein the right oil guide hole (232), the sealing piston hole (233) and the pressure adjusting bolt hole (234) are sequentially communicated, the aperture is sequentially increased, and the right oil guide hole (232) is communicated with the closed cavity (212);

the exhaust passage comprises a left oil guide hole (235) and a compression bolt hole (236), the left oil guide hole (235) and the closed cavity (212) are sequentially communicated, the aperture of the compression bolt hole (236) is larger than that of the left oil guide hole (235), an exhaust hole (231) is formed beside the compression bolt hole (236), and the exhaust hole (231) is communicated with the bottom of the compression bolt hole (236);

the pressure regulating device comprises a sealing pushing plug (26), a sealing movable core (27) and a pressure regulating bolt (28), wherein the sealing pushing plug (26) and the sealing movable core (27) are sequentially inserted into the sealing piston hole (233), the diameter of the sealing pushing plug (26) is larger than the aperture of the right oil guide hole (232), the pressure regulating bolt (28) is positioned in the pressure regulating bolt hole (234), and the pressure regulating bolt (28) is connected with the outer sleeve (23) in a threaded manner; the head of the sealing pushing plug (26) is conical;

The exhaust device comprises a sealing ball (29) and a compression bolt (210), the sealing ball (29) and the compression bolt (210) are sequentially inserted into the compression bolt hole (236), the diameter of the sealing ball (29) is larger than the hole diameter of the left oil guide hole (235) and the hole diameter of the exhaust hole (231), and the compression bolt (210) is in threaded connection with the outer sleeve (23).

2. The lithium battery electrode sheet slitting device as defined in claim 1, wherein: the pressure adjusting bolt (28) and the compression bolt (210) are provided with a limit bolt (211) along the axial line screwing-out direction, the axial line of the limit bolt (211) is respectively and vertically intersected with the axial lines of the pressure adjusting bolt (28) and the compression bolt (210), the limit bolt (211) is assembled on the outer sleeve (23), and the limit bolt (211) is in threaded connection with the outer sleeve (23).

3. The lithium battery electrode sheet slitting device according to claim 1 or 2, wherein: the hydraulic locking tool apron (2) further comprises a locking sleeve (25), the locking sleeve (25) is detachably connected with the outer sleeve (23), a tool holding step (2302) is arranged on the outer sleeve (23), a tool clamping groove is formed in the position of the tool holding step (2302) after the locking sleeve (25) is connected with the outer sleeve (23), and the annular blade (3) is located at the tool clamping groove.

4. A lithium battery electrode sheet slitting device as defined in claim 3, wherein: a grating (4) for measuring the axial distance of the annular blade is arranged beside the tool rest (1).

5. An assembly process of the lithium battery electrode sheet slitting device according to claim 4, wherein the steps are as follows:

step one, assembling a hydraulic locking tool apron (2):

A. assembling an O-shaped ring: the O-shaped ring (24) is clamped into a groove on the inner wall of the outer sleeve (23) or the outer wall of the inner sleeve (21);

B. assembling an inner sleeve: the inner sleeve (21) is inserted into the outer sleeve (23) and fixed;

C. assembling an exhaust device: the sealing ball (29) is arranged in an exhaust passage on the outer sleeve (23), the compression bolt (210) is arranged on the exhaust passage opening, and the compression bolt (210) is ensured to be in a half-screwing state;

D. hydraulic oil filling and exhaust processes: the hydraulic locking tool apron is vertically arranged along the central axis, the exhaust channel is located above the oil filling channel, hydraulic oil is slowly injected into the closed cavity (212) from the oil filling channel, when the oil is discharged from the opening of the exhaust channel and no bubbles emerge, the closed cavity (212) is considered to be full, and then oil injection is stopped;

E. Assembling a pressure regulating device: the sealing pushing plug (26) and the sealing movable core (27) are sequentially inserted into the oil filling channel, then the pressure adjusting bolt (28) is arranged on the exhaust channel port, the pressure adjusting bolt (28) is ensured to be in a partial screwing state, and meanwhile the compression bolt (210) of the exhaust channel port is screwed;

F. the assembly of the limit bolts, namely, the limit bolts (211) are assembled on limit bolt holes (237) at the openings of the oil filling channel and the exhaust channel on the outer sleeve (23) and are used for limiting the screwing-out lengths of the pressure adjusting bolts (28) and the compression bolts (210);

G. fixing the annular blade: clamping the annular blade (3) on a knife loading step (2302) on the outer sleeve (23);

H. assembling a locking sleeve: the locking sleeve (25) is arranged on the outer sleeve (23) and screwed;

step two, the hydraulic locking tool apron (2) is respectively arranged on an upper main shaft (11) and a lower main shaft (13);

step three, positioning and fixing the hydraulic locking tool apron (2):

A. the blocking finger (41) on the grating (4) is moved to the position of the annular blade (3) on the hydraulic locking blade holder (2) at one end of the lower spindle (13), and the hydraulic locking blade holder (2) at the position is adjusted and locked;

B. The blocking finger (41) is moved along the axis direction of the lower spindle (13) until the grating reading variation difference value is the specified size of the electrode plate, and the position of the blocking finger (41) is locked;

C. moving a hydraulic locking tool apron (2) at the other end of the lower spindle (13), enabling an annular blade (3) on the hydraulic locking tool apron (2) to be aligned with the position of the blocking finger (41), and then locking the hydraulic locking tool apron (2);

D. repeating the step A, B, C to sequentially position and lock the rest hydraulic locking tool holders (2) on the lower spindle (13);

E. the hydraulic locking tool apron (2) on the upper main shaft (11) is moved, so that the annular blades (3) on the upper main shaft (11) are vertically corresponding to the annular blades (3) on the lower main shaft (13) one by one, and the hydraulic locking tool apron (2) is locked.