CN112599838B - Winding needle shaft two-end supporting and fixing structure of square lithium battery sheet-making winding machine - Google Patents

Abstract

The invention relates to a supporting and fixing structure at both ends of a needle shaft of a square lithium battery tablet winding machine, comprising a needle shaft, a needle handle and a connecting sleeve for withdrawing and withdrawing needles. Rolling needle, a needle-retracting connecting sleeve is installed in the middle of the rolling needle shaft, the rolling needle shaft is a spline shaft, the outer peripheral side of the rolling needle shaft is provided with a plurality of spline grooves arranged around the circumference of the central axis of the rolling needle shaft, and the front end of the rolling needle shaft It is supported and installed on the front turntable through the front support spline sleeve assembly, and the rear end of the reel shaft is supported and installed on the rear turntable through the rear support spline sleeve assembly. The spline shaft itself can be rotated and slidable. There is no need for adapter sleeves, and the front and rear ends of the spline shaft are supported by a front support spline sleeve assembly and a rear support spline sleeve assembly to prevent the cantilever from being too long, the rigidity of the spline shaft is greatly improved, and the runout is very small , so that the rigidity and runout transmitted to the rolling needle are greatly improved to ensure normal production.

Description

A structure for supporting and fixing both ends of a needle shaft of a square lithium battery production and winding machine

technical field

The invention relates to the field of lithium ion battery manufacturing equipment, in particular to a supporting and fixing structure at both ends of a winding needle shaft of a square lithium battery tablet winding machine.

Background technique

The production winding machine, the full name of the lithium ion battery production winding machine, is a mechanical device used to manufacture lithium ion batteries. Lithium ion batteries are composed of positive and negative plates, separators, tabs, etc. There are square and cylindrical, so the production winding machine can also be classified into a square production winding machine and a cylindrical production winding machine. The installation structure of the needle shaft of the existing production winding machine is shown in Figure 1. As shown in the figure, the rolling needle is installed in front of the rolling needle shaft 01 and the back is connected with the withdrawal needle adapter sleeve 02, the rear of the withdrawal needle adapter casing 02 is connected with the spline shaft 03, and the withdrawal needle adapter casing 02 not only drives the rolling needle to move back and forth The needle withdrawal and needle withdrawal also play the role of transferring the needle winding shaft 01 and the spline shaft 03. The rear end of the spline shaft 03 is installed to the rear turntable through the rear support spline sleeve assembly 04. This traditional needle winding shaft installation structure The defect is that because the needle retraction sleeve 02 has a transfer function, the needle reel shaft 01 has to rotate and retract the needle to pull out the needle, so the front end of the needle reel shaft 01 can no longer be fixed by the mechanism, and it directly extends out of the front turntable. , so that the cantilever is too long, resulting in poor runout accuracy at the needle end and insufficient rigidity of the needle shaft, which affects normal production.

SUMMARY OF THE INVENTION

In view of the above-mentioned defects in the prior art, the present invention provides a support and fixing structure at both ends of the winding needle shaft of a square lithium battery tablet winding machine, and the specific technical scheme is as follows:

The utility model relates to a supporting and fixing structure at both ends of a winding needle shaft of a square lithium battery production and winding machine, comprising a needle winding shaft, a needle handle and a connecting sleeve for withdrawing and withdrawing needles. A needle-retracting connection sleeve is installed in the middle of the reeling shaft, the reeling shaft is a spline shaft, the outer periphery of the reeling shaft is provided with a plurality of spline grooves arranged around the central axis of the reeling shaft, and the front end of the reeling shaft is supported by the front The spline sleeve assembly is supported and installed on the front turntable, and the rear end of the needle shaft is supported and installed on the rear turntable through the rear support spline sleeve assembly.

As a preferred solution of the present invention, the front support spline sleeve assembly includes a front support sleeve, a front spline shaft sleeve, a front bearing, a front spline shaft nut, and a front support sleeve is fitted on the outer peripheral side of the front spline shaft sleeve, The front bearing is installed between the front support sleeve and the front spline shaft sleeve. The front spline shaft nut is installed inside the rear of the front spline shaft sleeve. The front spline shaft nut is provided with a spline protrusion matched with the spline groove. The key shaft nut engages the reel shaft.

As a preferred solution of the present invention, the front end of the front support sleeve is provided with a front installation step, the front installation step is provided with a front installation hole, and the front support sleeve is installed on the front turntable through the screw through the front installation hole.

As a preferred solution of the present invention, a front gear is installed in front of the front spline bushing.

As a preferred solution of the present invention, the rear support spline sleeve assembly includes a rear support sleeve, a rear spline shaft sleeve, a rear bearing, a rear spline shaft nut, and a rear support sleeve is sleeved on the outer peripheral side of the rear spline shaft sleeve, The rear bearing is installed between the rear support sleeve and the rear spline shaft sleeve. The rear spline shaft nut is installed inside the front of the rear spline shaft sleeve. The rear spline shaft nut is provided with a spline protrusion matched with the spline groove. The key shaft nut engages the reel shaft.

As a preferred solution of the present invention, the front end of the rear support sleeve is provided with a rear installation step, the rear installation step is provided with a rear installation hole, and the rear support sleeve is installed on the rear turntable through the screw through the rear installation hole.

As a preferred solution of the present invention, a rear gear is installed behind the rear spline bushing.

As a preferred solution of the present invention, an installation post is arranged behind the needle handle, and the installation post is inserted into the inside of the needle winding shaft.

The beneficial effects of the present invention are as follows: the spline shaft itself is rotatable and slidable to act as a needle reel shaft, without the need for an adapter sleeve, and the front and rear ends of the spline shaft are respectively provided with a front support spline sleeve assembly and a rear support spline. A set of components is used to support and fix the cantilever to prevent the cantilever from being too long. The rigidity of the spline shaft is greatly improved and the runout is very small, which greatly improves the rigidity and runout transmitted to the winding needle and ensures the normal production.

Description of drawings

1 is a perspective view of the prior art;

Fig. 2 is the perspective view of the present invention;

Figure 3 is an exploded view of the present invention;

Figure 4 is an exploded view of the front support spline sleeve assembly of the present invention;

Figure 5 is an exploded view of the rear support spline sleeve assembly of the present invention;

FIG. 6 is a schematic structural diagram of the present invention when it is installed on the front turntable and the rear turntable.

Detailed ways

Below in conjunction with the accompanying drawings, the specific embodiments of the present invention will be further described:

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

As shown in Figures 2 to 6, a square lithium battery production and winding machine has a supporting and fixing structure at both ends of the needle shaft, including a needle shaft 1, a needle handle 2 and an exit and withdrawal needle connecting sleeve 3. The front end of the needle shaft 1 Install the needle handle 2. The needle handle 2 is used to install the rolling needle. There is a mounting post behind the needle handle 2. The mounting post is inserted into the needle rolling shaft and fixed with screws. The needle connecting sleeve 3 only has the function of driving the needle winding shaft 1 to move so as to drive the winding needle to move back and forth to complete the needle withdrawal and withdrawal. The specific structure of the prior art will not be described again. The needle winding shaft 1 is a spline shaft, and the winding needle The outer peripheral side of the shaft 1 is provided with a plurality of spline grooves arranged around the central axis of the winding shaft. The spline sleeve assembly 6 is supported and mounted on the rear turntable 7 .

As shown in FIGS. 4 and 6 , the front support spline sleeve assembly 4 includes a front support sleeve 41 , a front spline sleeve 42 , a front bearing 43 , a front spline shaft nut 44 , and a front outer peripheral side of the front spline sleeve 42 . The front support sleeve 41 is assembled, the front bearing 43 is installed between the front support sleeve 41 and the front spline shaft sleeve 42, the front spline shaft nut 44 is installed inside the rear of the front spline shaft sleeve 42, and the front spline shaft nut 44 is provided with The spline protrusions matched with the spline grooves, the nut of the front spline shaft 44 is engaged with the needle shaft 1, and the front gear 45 is installed in front of the front spline shaft sleeve 42. A flat key is installed between the spline shaft sleeve 42 and the front spline shaft nut 44, so when the front gear 45 rotates, the front gear 45 drives the front spline shaft sleeve 42 to rotate, and the front spline shaft sleeve 42 drives the front spline shaft nut 44 rotates, the front spline shaft nut 44 drives the spline shaft, that is, the reel shaft 1 to rotate. In addition, the front end of the front support sleeve 41 is provided with a front installation step 46, and the front installation step 46 is provided with a front installation hole 47, and the front support sleeve 41 passes through. The screws are inserted into the front mounting holes 47 to be installed on the front turntable 5 , so that the front support spline sleeve assembly 4 is fixedly installed on the front turntable 5 .

As shown in FIGS. 5 and 6 , the rear support spline sleeve assembly 6 includes a rear support sleeve 61 , a rear spline sleeve 62 , a rear bearing 63 , and a rear spline shaft nut 64 . The support sleeve 61, the rear bearing 63 are installed between the rear support sleeve 61 and the rear spline shaft sleeve 62, the rear spline shaft nut 64 is installed inside the front of the rear spline shaft sleeve 62, and the rear spline shaft nut 64 is provided with a spline groove. The cooperating splines protrude, the rear spline shaft nut 64 meshes with the reel shaft 1, and the rear gear 65 is installed behind the rear spline shaft sleeve 62. A flat key is installed between the shaft sleeve 62 and the rear spline shaft nut 64, so when the rear gear 65 rotates, the rear gear 65 drives the rear spline shaft sleeve 62 to rotate, and the rear spline shaft sleeve 62 drives the rear spline shaft nut 64 Rotation, the rear spline shaft nut 64 drives the spline shaft, that is, the reel shaft 1 to rotate, in addition, the front end of the rear support sleeve 61 is provided with a rear installation step 66, the rear installation step 66 is provided with a rear installation hole 67, and the rear support sleeve 61 is provided with a screw The rear mounting hole 67 is inserted into the rear turntable 7 to be installed on the rear turntable 7 , so that the rear support spline sleeve assembly 6 is fixedly installed on the rear turntable 7 .

To sum up, the advantages of the present invention are that the entire needle shaft is a spline shaft without the need for an adapter sleeve, making full use of the rotatable and slidable characteristics of the spline shaft itself, and the front and rear ends of the spline shaft are respectively provided with front supports. The spline sleeve assembly and the rear support spline sleeve assembly are used to support and fix the cantilever to prevent the cantilever from being too long. The rigidity of the spline shaft is greatly improved and the runout is very small, which greatly improves the rigidity and runout transmitted to the winding needle. , to ensure normal production.

The above content is a further detailed description of the present invention in conjunction with the specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. Under the premise, some simple deductions or substitutions can also be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (7)

1. A support and fixing structure at both ends of a needle shaft of a square lithium battery production and winding machine, including a needle shaft, a needle handle and a connecting sleeve for withdrawing and withdrawing needles, the needle handle is installed at the front end of the needle shaft, and the needle handle is used to install The needle, the needle-retracting connection sleeve is installed in the middle of the needle-reeling shaft, and it is characterized in that: the needle-reeling shaft is a spline shaft, and the outer peripheral side of the needle-reeling shaft is provided with a plurality of spline grooves arranged around the circumference of the central axis of the needle-reeling shaft. The front end of the needle shaft is supported and installed on the front turntable through the front support spline sleeve assembly, and the rear end of the needle shaft is supported and installed on the rear turntable through the rear support spline sleeve assembly. The front support spline sleeve assembly includes a front support sleeve, a front spline sleeve Shaft sleeve, front bearing, front spline shaft nut, front support sleeve is fitted on the outer peripheral side of the front spline shaft sleeve, the front bearing is installed between the front support sleeve and the front spline shaft sleeve, and the front spline shaft sleeve is installed inside the rear The spline shaft nut, the front spline shaft nut is provided with a spline protrusion matched with the spline groove, and the front spline shaft nut engages the needle winding shaft. 2. The support and fixing structure at both ends of the reel shaft of a square lithium battery making and winding machine according to claim 1 is characterized in that: the front end of the front support sleeve is provided with a front mounting step, and the front mounting step is provided with a front mounting step. The front mounting hole, the front support sleeve is installed on the front turntable through the screw through the front mounting hole. 3 . The support and fixing structure at both ends of the reel shaft of a square lithium battery making and winding machine according to claim 1 , wherein a front gear is installed in front of the front spline sleeve. 4 . 4. The support and fixation structure at both ends of the reel shaft of a square lithium battery production and winding machine according to claim 1, characterized in that: the rear support spline sleeve assembly comprises a rear support sleeve, a rear spline shaft Sleeve, rear bearing, rear spline shaft nut, the rear support sleeve is fitted on the outer peripheral side of the rear spline shaft sleeve, the rear bearing is installed between the rear support sleeve and the rear spline shaft sleeve, and the rear spline shaft is installed inside the front of the rear spline shaft sleeve The key shaft nut, the rear spline shaft nut is provided with a spline protrusion matched with the spline groove, and the rear spline shaft nut is engaged with the needle winding shaft. 5. The support and fixing structure at both ends of the reel shaft of a square lithium battery making and winding machine according to claim 4 is characterized in that: the front end of the rear support sleeve is provided with a rear mounting step, and the rear mounting step is provided with a rear mounting step. The rear mounting hole, the rear support sleeve is installed on the rear turntable through the screw through the rear mounting hole. 6 . The structure for supporting and fixing both ends of the reel shaft of a square lithium battery making and winding machine according to claim 4 , wherein a rear gear is installed behind the rear spline bushing. 7 . 7. The support and fixing structure at both ends of the needle shaft of a square lithium battery production and winding machine according to claim 1, characterized in that: the rear of the needle handle is provided with a mounting post, and the mounting post is inserted into the needle shaft internal.

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