CN216850051U - Roll up core utmost point ear and bend and thickness measuring equipment - Google Patents

Abstract

The utility model discloses a bending and thickness measuring device for a coil core lug. The bending assembly comprises a positioning jig used for positioning the winding core and a bending mechanism arranged above the positioning jig. The thickness measuring assembly comprises a placing table for placing a roll core, a thickness measuring sensor and a pressing mechanism for pressing the roll core on the placing table. Roll up core utmost point ear through bending the mechanism and bend, can guarantee to roll up the precision that core utmost point ear was bent, improve the uniformity and the quality of rolling up the core encapsulation, after rolling up core utmost point ear bending, utilize the mechanism of bending to shift to the platform of placing of thickness measurement subassembly with the core that rolls after utmost point ear is bent, measure the thickness of rolling up the core through the thickness measurement sensor, thereby confirm whether the thickness of rolling up the core accords with the thickness standard, with the core that will not accord with the thickness standard and the core that rolls that accords with the thickness standard are unloading respectively, can realize just selecting the core that does not accord with the thickness standard at the core preparation stage of rolling up, can save follow-up material cost.

Description

Roll up core utmost point ear and bend and thickness measuring equipment

Technical Field

The utility model relates to the technical field of battery cell manufacturing, in particular to a core electrode lug bending and thickness measuring device.

Background

Currently, lithium ion batteries have occupied a large portion of the market for mobile electronic products due to their low self-discharge and negligible memory effect.

There are two winding modes of soft package lithium ion battery, which are positive winding and negative winding. The positive book core of rolling up is fit for being the laminate polymer battery of two pits, and the space that the back of the body hole can be reserved to the battery places the circuit board for wearing equipment reserves more spaces, and the book core of rolling up is fit for being the laminate polymer battery of single pit, can not place the circuit board for wearing equipment reserved space. But the reverse winding core can achieve higher capacity and thinner cell thickness than the forward winding core under the same size.

In the production process of the lithium ion battery core, the winding core tab is usually required to be bent. Meanwhile, because there is relevance between the thickness of the winding core and the thickness of the finished product battery core, the thickness of the winding core needs to be strictly controlled in order to prevent the finished product battery core from exceeding the standard thickness of the thickness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bending and thickness measuring device for a winding core lug so as to ensure the quality of a winding core.

In order to achieve the purpose, the utility model discloses a bending and thickness measuring device for a coil core lug. The bending assembly comprises a positioning jig used for positioning a winding core and a bending mechanism arranged above the positioning jig, the bending mechanism is used for pressing a tab of the winding core to bend the tab, and the winding core after the tab is bent is transferred to the thickness measuring assembly. The thickness measuring assembly comprises a placing table, a thickness measuring sensor and a pressing mechanism, the placing table is used for placing a roll core, the thickness measuring sensor is used for measuring the thickness of the roll core, the positioning jig is used for placing the roll core, the pressing mechanism is used for pressing the roll core on the placing table, and the pressing mechanism is arranged above the placing table in a liftable mode. The blanking assembly comprises a blanking mechanism and a first horizontal moving mechanism, wherein the blanking mechanism is used for taking the placed roll cores on the platform and placing the roll cores on the platform to the material box, the first horizontal moving mechanism is used for driving the blanking mechanism to move transversely between the platform and the material box, and the blanking mechanism is arranged on the first horizontal moving mechanism.

Compared with the prior art, the utility model can ensure the bending precision of the core electrode lug and improve the consistency and quality of core packaging by bending the core electrode lug through the bending mechanism, transfers the core after the electrode lug is bent to the placing platform of the thickness measuring assembly by utilizing the bending mechanism, and measures the thickness of the core through the thickness measuring sensor, thereby determining whether the thickness of the core meets the thickness standard, respectively blanking the core which does not meet the thickness standard and the core which meets the thickness standard, selecting the core which does not meet the thickness standard in the core manufacturing stage, saving the subsequent material cost and greatly improving the production efficiency.

Preferably, the bending mechanism includes a pressure head for pressing on a tab of the winding core to bend the tab, a suction nozzle for sucking the winding core, a first lifting mechanism for driving the pressure head and the suction nozzle to lift, and a second horizontal moving mechanism for driving the first lifting mechanism to move horizontally between the positioning jig and the placing table, the first lifting mechanism is arranged on the second horizontal moving mechanism, and the pressure head and the suction nozzle are arranged at an output end of the first lifting mechanism.

Preferably, the pressure head comprises a connecting part connected with the output end of the first lifting mechanism and a pressure head part used for pressing the pole lug of the winding core, the pressure head part is in an inverted triangle shape, and one side of the pressure head part close to the winding core is provided with a fillet.

Preferably, the pressing mechanism comprises a pressing plate used for pressing on the winding core and a second lifting mechanism used for driving the pressing plate to lift, and the pressing plate is arranged at the output end of the second lifting mechanism.

Preferably, the pressure plate is cross-shaped.

Preferably, the thickness measuring assembly further comprises a third horizontal moving mechanism for driving the second lifting mechanism to move transversely along the horizontal direction, and the second lifting mechanism is arranged on the third horizontal moving mechanism.

Preferably, the thickness measuring assembly further comprises a bracket for mounting the thickness measuring sensor and a fourth horizontal moving mechanism for driving the bracket to move longitudinally along the horizontal direction, and the bracket is arranged on the fourth horizontal moving mechanism.

Preferably, the apparatus further comprises a fifth horizontal moving mechanism for driving the placing table to move longitudinally along the horizontal direction, the placing table is arranged on the fifth horizontal moving mechanism, and the fourth horizontal moving mechanism is connected with the placing table.

Preferably, the material boxes comprise a good product material box and a defective product material box, the good product material box and the defective product material box are transversely arranged along the horizontal direction, and the blanking assembly takes the winding core according to the thickness measuring result of the thickness measuring assembly and puts the winding core to the good product material box or the defective product material box.

Preferably, the good product material box comprises a plurality of placing positions which are arranged along the transverse direction and the longitudinal direction, and a sixth horizontal moving mechanism which is used for driving the good product material box to move longitudinally along the horizontal direction is arranged below the good product material box.

Drawings

Fig. 1 is a three-dimensional structure diagram of a core tab bending and thickness measuring device according to an embodiment of the present invention.

Fig. 2 is a side view of the roll core tab bending and thickness measuring apparatus shown in fig. 1.

Fig. 3 is a top view of the roll core tab bending and thickness measuring apparatus shown in fig. 1.

FIG. 4 is a partial block diagram of a bending assembly in accordance with one embodiment of the present invention.

Fig. 5 is a perspective view of a thickness measuring unit and a fifth horizontal movement mechanism according to an embodiment of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the utility model and not all embodiments of the utility model, with the understanding that the utility model is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the described embodiments without inventive effort, shall fall within the scope of protection of the utility model.

In the description of the present invention, it should be understood that the terms "upper", "lower", "horizontal", "transverse", "longitudinal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and thus should not be construed as limiting the scope of the present invention. Wherein, the transverse direction and the longitudinal direction are two mutually vertical directions on a horizontal plane.

The utility model discloses a device 100 for bending and thickness measuring of a rolled core lug, which is used for bending the lug of a rolled core, measuring the thickness of the rolled core after the lug is bent, and respectively placing the rolled core (good product) with the thickness meeting the thickness standard and the rolled core (defective product) with the thickness not meeting the thickness standard to a good product material box 6 and a defective product material box 7, so that the rolled core not meeting the thickness standard can be selected in the rolled core manufacturing stage, the subsequent material cost can be saved, and the production efficiency can be greatly improved.

Referring to fig. 1 to 5, the apparatus 100 for bending and measuring thickness of a tab of a winding core includes a machine table 1, a bending component 2, a thickness measuring component 3 and a blanking component 4 disposed on the machine table 1. The bending assembly 2 comprises a positioning jig 21 for positioning a winding core and a bending mechanism arranged above the positioning jig 21, and the bending mechanism is used for pressing a lug of the winding core to bend the lug and transferring the winding core after the lug is bent to the thickness measuring assembly 3. The thickness measuring component 3 comprises a placing table 31 which is arranged right opposite to the positioning jig 21 and used for placing a winding core, a thickness measuring sensor 32 used for measuring the thickness of the winding core and a pressing mechanism used for pressing the winding core of the placing table 31, and the pressing mechanism is arranged above the placing table 31 in a liftable mode. The blanking assembly 4 comprises a blanking mechanism for taking the winding cores on the placing table 31 and placing the winding cores on the material box and a first horizontal moving mechanism 41 for driving the blanking mechanism to transversely move between the placing table 31 and the material box, and the blanking mechanism is arranged on the first horizontal moving mechanism 41.

Hereinafter, a core tab bending and thickness measuring apparatus 100 according to the present invention will be described in detail with reference to fig. 1 to 5.

Referring to fig. 1 and 4, as shown in fig. 1 and 4, the bending mechanism includes a pressing head 22 for pressing on the tab of the winding core to bend the tab, a suction nozzle 23 for sucking the winding core, a first lifting mechanism 24 for driving the pressing head 22 and the suction nozzle 23 to lift, and a second horizontal moving mechanism 25 for driving the first lifting mechanism 24 to move horizontally between the positioning fixture 21 and the placing table 31, the first lifting mechanism 24 is disposed on the second horizontal moving mechanism 25, and the pressing head 22 and the suction nozzle 23 are disposed at the output end of the first lifting mechanism 24.

The first lifting mechanism 24 drives the ram 22 to descend and press on the pole lug of the winding core, so that the pole lug is bent; then, the pressure head 22 is driven by the first lifting mechanism 24 to lift away from the pole lugs; then, the suction nozzle 23 is driven to descend to adsorb the winding core through the first lifting mechanism 24 again; then, the second horizontal moving mechanism 25 moves the first elevating mechanism 24 horizontally to above the placing table 31, and the suction nozzle 23 places the core on the placing table 31.

Because the suction nozzle 23 and the pressure head 22 are also arranged at the output end of the first lifting mechanism 24, mutual influence between the suction nozzle 23 and the pressure head 22 needs to be avoided, in this embodiment, when the pressure head 22 bends the tab, the height of the lower surface of the pressure head 22 is higher than the height of the suction nozzle 23 when the suction nozzle 23 adsorbs the winding core, meanwhile, before the first lifting mechanism 24 drives the suction nozzle 23 to descend, the second horizontal moving mechanism 25 can also drive the first lifting mechanism 24 to transversely move along the horizontal direction, so that the pressure head 22 moves to the outer side of the positioning jig 21, and the pressure head 22 is prevented from abutting against the positioning jig 21 to hinder the descending of the suction nozzle 23. Of course, the skilled person can flexibly adjust the arrangement of the pressure head 22 and the suction nozzle 23 according to the actual situation.

As shown in fig. 4, in particular, the press head 22 includes a connecting portion 221 connected to the output end of the first lifting mechanism 24 and a pressing head portion 222 for pressing on the tab of the winding core. In a preferred embodiment, the pressing head 222 has an inverted triangle shape, and the side of the pressing head 222 close to the winding core is rounded. The pressing head part 222 is designed to be an inverted triangle, so that the tab can be conveniently bent; meanwhile, the head pressing part 222 is subjected to rounding treatment, so that the head pressing part 222 can be prevented from damaging the winding core main body while the tabs are effectively bent.

Referring to fig. 5, as shown in fig. 5, the pressing mechanism includes a pressing plate 33 for pressing on the winding core and a second lifting mechanism 34 for driving the pressing plate 33 to lift, and the pressing plate 33 is disposed at an output end of the second lifting mechanism 34. After the bending mechanism transfers the winding core after the tab is bent to the placing table 31, the second lifting mechanism 34 can drive the pressing plate 33 to descend to press the winding core tightly, and then the thickness of the winding core is measured through the thickness measuring sensor 32, so that the accurate measurement of the thickness can be realized.

Because roll up the core area great, through installing clamp plate 33 at the output of second elevating system 34, increase the area of contact of pushing down the mechanism and rolling up the core, avoid pressing to roll up the core center because of the output of second elevating system 34 only, and roll up and do not press around the core and lead to the thickness measurement inaccurate. In a preferred embodiment, the platen 33 is cross-shaped to press the core in multiple orientations and to avoid the platen 33 interfering with the thickness measurement sensor 32. Specifically, the pressing plate 33 is a metal thin plate.

Wherein, thickness measurement sensor 32 is the laser thickness measurement sensor, places the top and the below of platform 31 and all is equipped with the laser thickness measurement sensor 32, realizes the thickness measurement of roll core through being located the laser thickness measurement sensor 32 cooperation of placing platform 31 top and below. As to how the laser thickness measuring sensor 32 specifically realizes thickness measurement is the prior art, it is not described herein again. In this embodiment, the placing table 31 is provided with a plurality of laser thickness measuring sensors 32 above and below, and the thickness of different parts of the winding core is measured by the plurality of laser thickness measuring sensors 32, so that more accurate thickness data can be obtained.

In order to avoid influencing thickness measuring sensor 32 and measuring the thickness of rolling up the core, in this embodiment, place platform 31 and do not set up other location structure and fix rolling up the core, but through positioning jig 21 accurate positioning roll core after, utilize the position relation of placing between platform 31 and the positioning jig 21, when rolling up the core and shifting to by positioning jig 21 and placing platform 31 on, roll up the core and can accurately place the relevant position of placing platform 31.

With reference to fig. 5, as shown in fig. 5, the thickness measuring assembly 3 further includes a third horizontal moving mechanism 35 for driving the second lifting mechanism 34 to move transversely along the horizontal direction, and the second lifting mechanism 34 is disposed on the third horizontal moving mechanism 35. By providing the third horizontal movement mechanism 35, the position of the second lifting mechanism 34 can be adjusted, so that the position of the pressing plate 33 in the transverse direction can be adjusted, and the pressing plate 33 can be pressed on the winding core more accurately.

Further, the thickness measuring assembly 3 further comprises a bracket 36 for mounting the thickness measuring sensor 32 and a fourth horizontal moving mechanism 37 for driving the bracket 36 to move longitudinally in the horizontal direction, and the bracket 36 is arranged on the fourth horizontal moving mechanism 37. Can place platform 31 and push down the mechanism at fore-and-aft relative position through the adjustment of fourth horizontal migration mechanism 37 to the clamp plate 33 can more accurately press on rolling up the core, simultaneously, also can avoid clamp plate 33 or thickness measurement sensor 32 to obstruct getting of rolling up the core and put through the position of placing platform 31 of adjustment, conveniently bend the mechanism and place the core after the utmost point ear is bent and place platform 31, perhaps unloading subassembly 4 is taken away the core of accomplishing thickness measurement from placing platform 31 and is taken away.

Further, the core tab bending and thickness measuring apparatus 100 further includes a fifth horizontal moving mechanism 5 for driving the placing table 31 to move longitudinally in the horizontal direction, the placing table 31 is disposed on the fifth horizontal moving mechanism 5, and the fourth horizontal moving mechanism 37 is connected to the placing table 31. The position of the thickness measuring component 3 on the machine table 1 can be adjusted through the fifth horizontal moving mechanism 5, so that the relative positions of the thickness measuring component 3 and the bending component 2 can be adjusted, and a winding core can be accurately placed at the corresponding position of the placing table 31.

The blanking mechanism comprises a blanking suction nozzle (not shown) for adsorbing the winding core and a third lifting mechanism 42 for driving the blanking suction nozzle to lift, the third lifting mechanism 42 is arranged on the first horizontal moving mechanism 41, and the blanking suction nozzle is arranged at the output end of the third lifting mechanism 42. The third lifting mechanism 42 drives the discharging suction nozzle to descend to adsorb the winding core, and then the first horizontal moving mechanism 41 drives the third lifting mechanism 42 to move to the position of the material box for discharging.

Referring to fig. 1 and 3, the material box includes a good product material box 6 and a bad product material box 7, the good product material box 6 and the bad product material box 7 are transversely arranged along a horizontal direction, if the thickness of the winding core measured by the thickness measuring component 3 meets the thickness standard, the winding core taken by the blanking component 4 is placed on the good product material box 6, and if the thickness of the winding core measured by the thickness measuring component 3 does not meet the thickness standard, the winding core taken by the blanking component 4 is placed on the bad product material box 7.

As shown in fig. 4, the good product magazine 6 includes a plurality of placement stations 61 arranged in the transverse direction and the longitudinal direction, that is, the plurality of placement stations 61 are arranged in rows and columns. A sixth horizontal moving mechanism 8 (shown in fig. 1) for driving the good product cassette 6 to move longitudinally in the horizontal direction is provided below the good product cassette 6. The good product material box 6 is driven to longitudinally move along the horizontal direction through the sixth horizontal moving mechanism 8, the blanking mechanism is driven to transversely move through the first horizontal moving mechanism 41, and therefore the winding cores with the thickness meeting the thickness standard are placed at the placing positions 61 of the good product material box 6.

In this embodiment, the first horizontal movement mechanism 41, the second horizontal movement mechanism 25, the third horizontal movement mechanism 35, the fourth horizontal movement mechanism 37, the fifth horizontal movement mechanism 5, and the sixth horizontal movement mechanism 8 are all linear driving mechanisms, and the first lifting mechanism 24, the second lifting mechanism 34, and the third lifting mechanism 42 each include an air cylinder, and are driven to lift by the air cylinder.

The operation of the core tab bending and thickness measuring apparatus 100 according to the present invention will be described with reference to the accompanying drawings.

Firstly, the position of the thickness measuring component 3 is adjusted through the fifth horizontal moving mechanism 5, so that the placing table 31 and the positioning jig 21 are arranged oppositely in the transverse direction; then, the winding core is placed in the positioning jig 21; then, the first lifting mechanism 24 drives the pressure head 22 to descend to press on the pole lug of the winding core to realize pole lug bending, then the first lifting mechanism 24 drives the pressure head 22 to ascend away from the winding core, then the second horizontal moving mechanism 25 drives the first lifting mechanism 24 to transversely move in the horizontal direction to enable the pressure head 22 to move to the outer side of the positioning jig 21, then the first lifting mechanism 24 drives the suction nozzle 23 to descend to adsorb the winding core, and then the suction nozzle 23 is driven to ascend; then, the second horizontal moving mechanism 25 drives the first lifting mechanism 24 to transversely move in the horizontal direction to the position above the placing table 31, then the first lifting mechanism 24 drives the suction nozzle 23 to descend again to enable the winding core to be placed on the placing table 31, then the suction nozzle 23 releases the winding core, then the first lifting mechanism 24 drives the suction nozzle 23 to ascend again, and the second horizontal moving mechanism 25 drives the first lifting mechanism 24 to transversely move in the horizontal direction to return to the position above the positioning jig 21; then, driving a pressing plate 33 to descend through a second lifting mechanism 34 to press the winding core tightly, measuring the thickness of the winding core through a thickness measuring sensor 32, and feeding back thickness data to a background processor; then, the third lifting mechanism 42 drives the discharging suction nozzle to descend to adsorb the winding core, then the discharging suction nozzle is driven to ascend, if the thickness of the winding core does not meet the thickness standard, the first horizontal moving mechanism 41 drives the third lifting mechanism 42 to move to the position above the defective material box 7, then the third lifting mechanism 42 drives the discharging suction nozzle to descend to release the winding core to the defective material box 7, if the thickness of the winding core meets the thickness standard, the first horizontal moving mechanism 41 drives the third lifting mechanism 42 to move to the position above the defective material box 6, then the third lifting mechanism 42 drives the discharging suction nozzle to descend to release the winding core to the placement position 61 of the defective material box 6, and before the first horizontal moving mechanism 8 drives the defective material box 6 to longitudinally move along the horizontal direction, so that the placement position 61 for placing the current winding core on the defective material box 6 is vertically aligned with the winding core.

Compared with the prior art, the bending mechanism is used for bending the core winding lug, so that the bending precision of the core winding lug can be ensured, the consistency and the quality of core winding packaging are improved, after the core winding lug is bent, the core winding after the lug is bent is transferred to the placing table 31 of the thickness measuring assembly 3 by the bending mechanism, the thickness of the core winding is measured by the thickness measuring sensor 32, whether the thickness of the core winding meets the thickness standard or not is determined, then the core winding which does not meet the thickness standard is fed to the defective product material box 7, the core winding which meets the thickness standard is placed to the non-product material box 6, the core winding which does not meet the thickness standard is selected in the core winding manufacturing stage, the subsequent material cost can be saved, and the production efficiency is greatly improved.

The above disclosure is only for the preferred embodiment of the present invention, and it should be understood that the present invention is not limited thereto, and the utility model is not limited to the above disclosure.

Claims (10)

1. The utility model provides a roll up core utmost point ear and bend and thickness measuring equipment which characterized in that includes:

a machine platform;

the bending assembly is arranged on the machine table and comprises a positioning jig for positioning a winding core and a bending mechanism arranged above the positioning jig, the bending mechanism is used for pressing the lug of the winding core to bend the lug and transferring the winding core with the bent lug to the thickness measuring assembly;

The thickness measuring assembly is arranged on the machine table and comprises a placing table, a thickness measuring sensor and a pressing mechanism, wherein the placing table is opposite to the positioning jig and used for placing a winding core, the thickness measuring sensor is used for measuring the thickness of the winding core, the pressing mechanism is used for pressing the winding core of the placing table, and the pressing mechanism is arranged above the placing table in a liftable manner; and

the blanking assembly is arranged on the machine table and comprises a blanking mechanism and a first horizontal moving mechanism, wherein the blanking mechanism is used for taking the placed roll cores on the machine table, placing the roll cores to the material boxes and driving the blanking mechanism to move transversely between the material boxes, and the blanking mechanism is arranged on the first horizontal moving mechanism.

2. The apparatus according to claim 1, wherein the bending mechanism comprises a pressing head for pressing on the tab of the winding core to bend the tab, a suction nozzle for sucking the winding core, a first lifting mechanism for driving the pressing head and the suction nozzle to lift, and a second horizontal moving mechanism for driving the first lifting mechanism to move horizontally between the positioning jig and the placing table, the first lifting mechanism is arranged on the second horizontal moving mechanism, and the pressing head and the suction nozzle are arranged at the output end of the first lifting mechanism.

3. The apparatus of claim 2, wherein the pressing head comprises a connecting part connected with the output end of the first lifting mechanism and a pressing head part used for pressing the pole lug of the winding core, the pressing head part is in an inverted triangle shape, and one side of the pressing head part close to the winding core is in an inverted round angle arrangement.

4. The apparatus of any one of claims 1 to 3, wherein the pressing mechanism comprises a pressing plate for pressing on the winding core and a second lifting mechanism for driving the pressing plate to lift, the pressing plate being provided at an output end of the second lifting mechanism.

5. The apparatus of claim 4, wherein the platen is cross-shaped.

6. The apparatus of claim 4, wherein the thickness measuring assembly further comprises a third horizontal moving mechanism for driving the second elevating mechanism to move laterally in a horizontal direction, the second elevating mechanism being provided on the third horizontal moving mechanism.

7. The apparatus of claim 6, wherein the thickness measuring assembly further comprises a bracket for mounting the thickness measuring sensor and a fourth horizontal moving mechanism for driving the bracket to move longitudinally in a horizontal direction, the bracket being disposed on the fourth horizontal moving mechanism.

8. The apparatus of claim 7, further comprising a fifth horizontal moving mechanism for driving the placing table to move longitudinally in a horizontal direction, the placing table being provided on the fifth horizontal moving mechanism, the fourth horizontal moving mechanism being connected to the placing table.

9. The device according to claim 1, wherein the material boxes comprise a good material box and a defective material box, the good material box and the defective material box are transversely arranged along a horizontal direction, and the blanking assembly takes the winding cores to place in the good material box or the defective material box according to a thickness measuring result of the thickness measuring assembly.

10. The apparatus according to claim 9, wherein the good material box comprises a plurality of placement positions arranged in the transverse direction and the longitudinal direction, and a sixth horizontal moving mechanism for driving the good material box to move longitudinally in the horizontal direction is arranged below the good material box.

Images