CN217032444U

CN217032444U - Lithium battery pole piece arc height detection device

Info

Publication number: CN217032444U
Application number: CN202220756731.9U
Authority: CN
Inventors: 伊颖
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-22
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a lithium battery pole piece arc height detection device which comprises a detection rack, a detection platform, a plane detection mechanism and a tensioning mechanism, wherein the plane detection mechanism comprises a mounting frame, a detection plate, a sliding rod and a first detection instrument, the mounting frame is arranged on the detection platform in a sliding mode, the detection plate is horizontally arranged on the detection platform, the sliding rod is vertically arranged on the mounting frame in a sliding mode, the lower end of the sliding rod is fixedly connected with the detection plate, and the upper end of the sliding rod is over against the detection end of the first detection instrument; the tensioning mechanisms are symmetrically provided with two groups and are respectively located at two ends of the length direction of the detection platform, the tensioning device comprises a roller and a tensioning assembly, the roller is rotatably arranged at the end of the length direction of the detection platform, the tensioning assembly comprises a clamping piece and a counterweight piece, and the clamping piece is used for clamping a pole piece bypassing the roller. The utility model can accurately judge whether the upper surface of the pole piece is out of tolerance in the process of protruding, can visually display protruding data and is visual and reliable.

Description

Lithium battery pole piece arc height detection device

Technical Field

The utility model relates to the technical field of lithium battery production equipment, in particular to a device for detecting the arc height of a lithium battery pole piece.

Background

The whole deformation of the pole piece is required to be controlled when the pole piece is rolled and cut so as to ensure the normal production of the subsequent process, and the existing measurement means is not visual enough and cannot accurately reflect the arc quantity of the pole piece.

The arc height of the pole piece is detected as required in the process of pole piece production by coating the pole piece, the pole piece with a certain length is cut by an operator, the length of the pole piece is measured under the condition of no stress, the length of the pole piece after stress is measured by manually applying tension to the pole piece, and the length difference obtained by comparing the two lengths is the arc height. Whole process is the manual operation, and is higher to staff's technical skill requirement, has great measuring error moreover from person to person, because of operating personnel cuts out the pole piece that length differs, when detection device measures, the arc height of unable accurate measurement pole piece to cause measuring error, measuring result is also not directly perceived.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a device for detecting the arc height of a lithium battery pole piece, which reduces the measurement errors which are different from person to person and enables the measurement result to be more visualized and quantized.

In order to solve the technical problem, the utility model provides a lithium battery pole piece arc height detection device, which comprises a detection rack, a detection platform, a plane detection mechanism and a tensioning mechanism, wherein the detection platform is horizontally arranged on the detection rack,

the plane detection mechanism comprises a mounting frame, a detection plate, a sliding rod and a first detection instrument, wherein the mounting frame is vertically arranged on the detection platform and can slide along the length direction of the detection platform;

tensioning mechanism, the symmetry is provided with two sets ofly, is located testing platform length direction both ends respectively, tensioning device includes roller and tensioning assembly, the roller rotates and sets up at testing platform length direction tip, and the roller rotates the direction unanimous with testing platform direction of delivery, tensioning assembly include the clamping piece and with clamping piece fixed connection's counterweight, the clamping piece is used for carrying out the centre gripping with the pole piece of walking around the roller.

On the basis of the technical scheme, preferably, the top surfaces of two sides in the width direction of the detection platform are respectively provided with a first sliding part, and the bottom of the mounting frame is provided with a first sliding chute connected with the first sliding part along the length direction of the detection platform.

Further, preferably, two ends of the first sliding part are respectively provided with a limiting part.

Further, preferably, at least two sliding rods are arranged, second sliding portions in sliding connection with the sliding rods are horizontally arranged at intervals on the top of the mounting frame, one end, far away from the detection plate, of each sliding rod penetrates through each second sliding portion and is connected with a horizontal connecting plate, the first detection instrument is vertically fixed on the top of the mounting frame, and the detection end of the first detection instrument vertically faces the surface of the horizontal connecting plate downwards.

On the basis of the technical scheme, preferably, a mounting groove is formed in the bottom of the mounting frame and close to the first sliding groove, the extending direction of the mounting groove is opposite to the detection plate, a second detection instrument is installed in the mounting groove, and the detection end of the second detection instrument horizontally extends into the detection platform and is flush with the bottom surface of the detection plate.

On above-mentioned technical scheme's basis, it is preferred, the detection frame includes four stands, and two liang of detection platform length direction both ends that are located, the stretch-draw subassembly still includes sliding frame, connecting rod and support piece, sliding frame slides and sets up on the stand, the one end and the sliding frame fixed connection of connecting rod, other end level extend to the detection frame is outer, support piece's both ends respectively with the tip fixed connection of two connecting rods, clamping piece fixed mounting is on support piece's top, and weight fixed mounting is in support piece's bottom.

Further, preferably, the clamping member includes a first clamping piece and a second clamping piece, the first clamping piece is vertically and fixedly mounted on the side wall of the supporting member, and the second clamping piece is parallel to the first clamping piece and is movably connected with the first clamping piece through a first adjusting nut.

Further, preferably, a second adjusting nut is further disposed between the sliding frame and the upright column on one group of tensioning assemblies.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model discloses a lithium battery pole piece arc height detection device, wherein two ends of a detection platform in the length direction are respectively provided with a tensioning mechanism, a pole piece with a certain length is selected, the pole piece is laid on the detection platform, two ends of the pole piece respectively bypass a roller and are connected with a clamping piece, the pole piece is in a natural tightening state through weight pieces at the two ends, the lower surface of a detection plate is attached to the surface of the pole piece, the whole plane detection mechanism is slid along the length direction of the detection platform, in the sliding process, the detection plate is contacted with the pole piece, if the surface of the pole piece is convex, the detection plate drives a sliding rod to vertically move upwards relative to an installation frame, and the convex size of the sliding rod is obtained by a first detection instrument, so that whether the upper surface of the pole piece is convex and out of tolerance can be judged, errors caused by artificial detection factors are reduced, meanwhile, convex data can be visually shown, and the detection device is visual and reliable;

(2) the installation groove is formed in the bottom of the installation frame and close to the first sliding groove, the second detection instrument is installed in the installation groove, and in the sliding process of the plane detection mechanism, if the side edge of the pole piece is provided with the bulge, the detection end of the second detection instrument can be touched, so that whether the bulge of the side edge of the pole piece is out of tolerance or not can be judged, and the bulge data can be visually displayed;

(3) through set up second adjusting nut between sliding frame and the stand on one of them group stretch-draw subassembly, can be with pole piece one end through this group stretch-draw subassembly fixed back to utilize second adjusting nut to fix the sliding frame on the stand, let the stretch-draw subassembly of the pole piece other end carry out gravity load to the pole piece, can avoid the unbalanced slide on testing platform in pole piece both ends, thereby cause detection error.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a lithium battery pole piece arc height detection device disclosed by the present invention;

FIG. 2 is a schematic structural view of a plane detection mechanism and a tensioning mechanism according to the present disclosure;

the attached drawings are as follows:

p, pole piece; 1. detecting the rack; 11. detecting a platform; 2. a plane detection mechanism; 3. a tensioning mechanism; 21. a mounting frame; 22. detecting a plate; 23. a slide bar; 24. a first detection meter; 31. a roller; 32. tensioning the assembly; 321. a clamping member; 322. a counterweight; 111. a first sliding section; 211. a first chute; 112. a limiting part; 212. a second sliding part; 25. a horizontal connecting plate; 213. mounting grooves; 26. a second instrumentation; 100. a column; 323. a sliding frame; 324. a connecting rod; 325. a support member; 3211. a first clip piece; 3212. a second clip; 3213. a first adjusting nut; 326. a second adjusting nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, with reference to fig. 2, an embodiment of the present invention discloses a lithium battery pole piece arc height detection apparatus, which includes a detection frame 1, wherein a detection platform 11 is horizontally disposed on the detection frame 1, so as to ensure the flatness of the detection platform 11, and facilitate a higher flatness of a pole piece on the detection platform 11, thereby avoiding a pole piece arc height detection error, the detection platform 11 in this embodiment is preferably a marble platform, and the flatness is less than or equal to 0.005 mm.

Pole piece P is cutting all need control the whole deflection of pole piece through the roll-in to be used for guaranteeing the normal production of follow-up procedure, and under the normal condition, there is certain deflection on the pole piece surface after the roll-in is cut, and these deflections mainly appear as pole piece surface arch, and surface arch also is called the arc height, need detect the arc height to guarantee that the product can normally produce.

For this reason, in the present embodiment, in order to detect the arc height of the pole piece, the plane detection mechanism 2 is disposed on the detection platform 11.

Specifically, plane detection mechanism 2 includes mounting bracket 21, pick-up plate 22, slide bar 23 and first detecting instrument 24, the vertical setting of mounting bracket 21 is on detecting platform 11, and can follow detecting platform 11 length direction and slide, the pick-up plate 22 level is placed on detecting platform 11, the vertical slip of slide bar 23 sets up on mounting bracket 21, the lower extreme and the pick-up plate 22 fixed connection of slide bar 23, the upper end of slide bar 23 is just to first detecting instrument 24's sense terminal, in this embodiment, first detecting instrument 24 is amesdial or other electronic instrument. When carrying out pole piece arc height detection, place testing platform 11 with the pole piece of certain length on, the pole piece is under being in natural state, with the lower surface laminating pole piece surface of pick-up plate 22, through sliding whole plane detection mechanism 2 along 11 length direction of testing platform, at the in-process that slides, pick-up plate 22 contacts the pole piece, if the pole piece surface is protruding, pick-up plate 22 drives slide bar 23 for the vertical rebound of mounting bracket 21, and obtain its protruding size by first instrumentation 24, can judge whether protruding discrepancy of pole piece upper surface, simultaneously can audio-visually show protruding data, it is directly perceived reliable.

However, because the pole piece has a certain elastic deformation in a natural state, the surface of the pole piece naturally forms a curve or a bulge, and therefore, the arc height of the pole piece cannot be really detected through the plane detection mechanism 2.

Therefore, this embodiment still discloses straining device 3 on above-mentioned technical scheme's basis, it is specific, straining device 3, the symmetry is provided with two sets ofly, be located 11 length direction both ends of testing platform respectively, tensioning equipment includes roller 31 and tensioning assembly 32, roller 31 rotates and sets up at 11 length direction tip of testing platform, and roller 31 rotation direction is unanimous with 11 direction of delivery of testing platform, tensioning assembly 32 includes clamping piece 321 and with clamping piece 321 fixed connection's counterweight 322, clamping piece 321 is used for carrying out the centre gripping with the pole piece that bypasses roller 31. From this setting, select the pole piece of certain length, lay the pole piece on testing platform 11, roller 31 is walked around respectively at the both ends of pole piece, and be connected with clamping piece 321, make the pole piece be in the state of tightening naturally through both ends counterweight 322, can reduce the pole piece from this and appear crooked or protruding because of self elastic deformation under natural state, and then can improve the detection that plane detection mechanism 2 is high to the pole piece arc, and acquire its protruding size through first instrumentation 24, can judge whether protruding overproof of pole piece upper surface, reduce the error that artificial detection factor caused, simultaneously can audio-visually show protruding data, it is directly perceived reliable.

In order to make the plane detection mechanism 2 slide stably on the detection platform 11, the scheme adopted by the embodiment is as follows: first sliding portions 111 are respectively disposed on top surfaces of two sides of the detection platform 11 in the width direction, and a first sliding groove 211 connected to the first sliding portions 111 is disposed at the bottom of the mounting frame 21 along the length direction of the detection platform 11. Specific first sliding part 111 is along 11 length direction side steps of testing platform, and the straightness accuracy of this step ≦ 0.1mm, and first spout 211 mutually supports with first sliding part 111, guarantees that mounting bracket 21 slides steadily on testing platform 11, and then guarantees pole piece arc height and detects the precision, and the reduction error exists.

In order to avoid the overload caused by the sliding of the mounting frame 21 on the detecting platform 11, the two ends of the first sliding portion 111 are respectively provided with a limiting portion 112 in the present embodiment. Specifically, the limiting portion 112 is higher than the first sliding portion 111, so that the mounting frame 21 can be blocked.

In order to ensure that the detection plate 22 can sensitively acquire data by the first detecting meter 24 when detecting the protrusion of the pole piece, the present embodiment adopts the following scheme: set up two at least with slide bar 23, the horizontal interval in mounting bracket 21 top is provided with the second sliding part 212 with slide bar 23 sliding connection, and is specific, be provided with in the second sliding part 212 with slide bar 23 sliding fit's slip hole, slide bar 23 one end of keeping away from detection board 22 passes second sliding part 212 and is connected with horizontal even board 25, and first detecting instrument 24 is vertical to be fixed at mounting bracket 21 top, and its sense terminal is vertical downwards just to horizontal even board 25 surface. From this setting, through two at least slide bar 23 upper and lower slips on mounting bracket 21, can guarantee that detection plate 22 is when the protruding detection of antipodal piece, on transmitting the displacement volume to horizontal connecting rod to carry out data by first instrumentation 24 and know.

As some preferred embodiments, the bottom of the mounting frame 21 is provided with a mounting groove 213 near the first sliding groove 211, the mounting groove 213 extends in a direction opposite to the detection board 22, the mounting groove 213 is provided with the second detecting instrument 26 therein, and the detecting end of the second detecting instrument 26 extends horizontally into the detecting platform 11 and is flush with the bottom surface of the detection board 22. From this setting, at the plane detection mechanism 2 slip in-process, if the pole piece side appears protrudingly, can touch the sense terminal of second instrumentation 26 to can judge whether the protruding out-of-tolerance of pole piece side, and can show protruding data directly perceived.

In order to make tensioning mechanism 3 can exert gravity load to the pole piece tip, guarantee simultaneously that the pole piece both ends do not swing, the scheme that this embodiment adopted is: the detection rack 1 comprises four upright posts 100, two by two positions are arranged at two ends of the detection platform 11 in the length direction, the tension assembly 32 further comprises a sliding frame 323, connecting rods 324 and a supporting piece 325, the sliding frame 323 is arranged on the upright posts 100 in a sliding mode, one end of each connecting rod 324 is fixedly connected with the corresponding sliding frame 323, the other end of each connecting rod 324 extends out of the detection rack 1 in the horizontal direction, two ends of the supporting piece 325 are fixedly connected with the end portions of the two connecting rods 324 respectively, a clamping piece 321 is fixedly arranged at the top end of the supporting piece 325, and a counterweight piece 322 is fixedly arranged at the bottom end of the supporting piece 325. From this setting, when carrying out pole piece arc height detection, place the pole piece on testing platform 11, roller 31 is walked around at its both ends to press from both sides tightly by clamping piece 321, because the effect of counterweight 322, the pole piece both ends tenesmus, sliding frame 323 slides and sets up on stand 100 simultaneously, can retrain tensioning subassembly 32, only allow tensioning subassembly 32 to reciprocate along stand 100, avoid tensioning subassembly 32 horizontal hunting, thereby guarantee that the pole piece is in on testing platform 11 and tighten and the state of stewing.

As some preferred embodiments, the clamping member 321 includes a first clamping piece 3211 and a second clamping piece 3212, the first clamping piece 3211 is vertically and fixedly installed on the side wall of the supporting member 325, and the second clamping piece 3212 and the first clamping piece 3211 are parallel to each other and movably connected through a first adjusting nut 3213. Therefore, when the end of the pole piece is clamped, the pole piece is inserted between the first clamping piece 3211 and the second clamping piece 3212, the first clamping piece 3211 and the second clamping piece 3212 can be clamped by the first adjusting nut 3213, and the end of the pole piece is clamped by the clamping piece 321.

As some preferred embodiments, a second adjusting nut 326 is further disposed between the sliding frame 323 of one group of tensioning assemblies 32 and the upright 100. From this setting, can be fixed the back with pole piece one end through this group tension assembly 32 to utilize second adjusting nut 326 to fix smooth frame 323 on stand 100, let the tension assembly 32 of the pole piece other end carry out the gravity load to the pole piece, can avoid the unbalanced slide on testing platform 11 in pole piece both ends, thereby cause detection error.

The working principle of the utility model is as follows:

selecting a pole piece with a certain length, laying the pole piece on the detection platform 11, enabling two ends of the pole piece to respectively bypass the roller 31 and be connected with the clamping piece 321, enabling the pole piece to be in a natural tightening state through the weight parts 322 at the two ends, attaching the lower surface of the detection plate 22 to the surface of the pole piece, sliding the whole plane detection mechanism 2 along the length direction of the detection platform 11, wherein the detection plate 22 is in contact with the pole piece in the sliding process, if the surface of the pole piece is convex, the detection plate 22 drives the sliding rod 23 to vertically move upwards relative to the mounting frame 21, and the convex size of the sliding rod is obtained by the first detection instrument 24, so that whether the convex on the upper surface of the pole piece is over-differential or not can be judged, if the side edge of the pole piece is convex in the sliding process of the plane detection mechanism 2, the detection end of the second detection instrument 26 can be touched, so that whether the convex on the side edge of the pole piece is over-differential or not can be judged, and convex data can be visually shown at the same time, the method is visual and reliable.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a lithium battery pole piece arc height detection device, is including detecting frame (1), it is provided with detection platform (11) to detect frame (1) upper level, its characterized in that: also comprises a plane detection mechanism (2) and a tension mechanism (3), wherein,

the plane detection mechanism (2) comprises a mounting frame (21), a detection plate (22), a sliding rod (23) and a first detection instrument (24), the mounting frame (21) is vertically arranged on the detection platform (11) and can slide along the length direction of the detection platform (11), the detection plate (22) is horizontally placed on the detection platform (11), the sliding rod (23) is vertically arranged on the mounting frame (21) in a sliding manner, the lower end of the sliding rod (23) is fixedly connected with the detection plate (22), and the upper end of the sliding rod (23) is opposite to the detection end of the first detection instrument (24);

tensioning mechanism (3), the symmetry is provided with two sets ofly, is located testing platform (11) length direction both ends respectively, tensioning device includes roller (31) and tensioning assembly (32), roller (31) rotate to set up at testing platform (11) length direction tip, and roller (31) rotation direction is unanimous with testing platform (11) direction of delivery, tensioning assembly (32) including clamping piece (321) and with clamping piece (321) fixed connection's counterweight (322), clamping piece (321) are used for and carry out the centre gripping with the pole piece of walking around roller (31).

2. The lithium battery pole piece arc height detection device of claim 1, characterized in that: the detection platform (11) width direction both sides top surface is provided with first sliding part (111) respectively, mounting bracket (21) bottom is provided with first spout (211) that are connected with first sliding part (111) along detection platform (11) length direction.

3. The lithium battery pole piece arc height detection device of claim 2, wherein: two ends of the first sliding part (111) are respectively provided with a limiting part (112).

4. The lithium battery pole piece arc height detection device of claim 1, characterized in that: the detection device is characterized in that at least two sliding rods (23) are arranged, second sliding portions (212) which are connected with the sliding rods (23) in a sliding mode are horizontally arranged at the top of the mounting frame (21) at intervals, one end, far away from the detection plate (22), of each sliding rod (23) penetrates through the second sliding portion (212) and is connected with the horizontal connecting plate (25), the first detection instrument (24) is vertically fixed to the top of the mounting frame (21), and the detection end of the first detection instrument is vertically downward opposite to the surface of the horizontal connecting plate (25).

5. The lithium battery pole piece arc height detection device of claim 2, wherein: the bottom of the mounting rack (21) is provided with a mounting groove (213) close to the first sliding groove (211), the extending direction of the mounting groove (213) is opposite to the detection plate (22), a second detection instrument (26) is mounted in the mounting groove (213), and the detection end of the second detection instrument (26) horizontally extends into the detection platform (11) and is flush with the bottom surface of the detection plate (22).

6. The lithium battery pole piece arc height detection device of claim 1, characterized in that: detect frame (1) including four stand (100), two liang of detection platform (11) length direction both ends that are located, stretch-draw subassembly (32) still include sliding frame (323), connecting rod (324) and support piece (325), sliding frame (323) slides and sets up on stand (100), the one end and the sliding frame (323) fixed connection of connecting rod (324), and the other end level extends outward to detecting frame (1), the both ends of support piece (325) respectively with the tip fixed connection of two connecting rods (324), clamping piece (321) fixed mounting is on the top of support piece (325), counterweight (322) fixed mounting is in the bottom of support piece (325).

7. The device for detecting the arc height of the lithium battery pole piece of claim 6, wherein: the clamping piece (321) comprises a first clamping piece (3211) and a second clamping piece (3212), the first clamping piece (3211) is vertically and fixedly installed on the side wall of the supporting piece (325), and the second clamping piece (3212) is parallel to the first clamping piece (3211) and movably connected through a first adjusting nut (3213).

8. The device for detecting the arc height of the lithium battery pole piece of claim 6, wherein: and a second adjusting nut (326) is also arranged between the sliding frame (323) on one group of the tensioning assemblies (32) and the upright post (100).