Cylindrical lithium battery winding and clamping assembly
By designing a cylindrical lithium battery winding clamping assembly, using a double-head telescopic cylinder and a drive part to clamp the battery cell, and combining a pressure roller to compact the tape, the displacement and bubble problems of the battery cell during the winding process are solved, and the stability and uniformity of the winding are improved.
Patent Information
- Application Number
- CN202422970283.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-03
AI Technical Summary
During the cell winding process of cylindrical lithium batteries, the uneven weight distribution of the cells leads to differences in centrifugal force, causing the tape to vibrate and shift during winding, affecting the stability of the winding operation.
A cylindrical lithium battery winding clamping assembly was designed, which included a base, a support seat, a vertical slide, a lifting part, a positioning clamping part and a compacting part. The double-headed telescopic cylinder and the driving part drove the horizontal support arm and the arc-shaped clamping arm to clamp the battery cell, and the pressure roller was used to compact the tape to prevent the displacement of the battery cell and the formation of bubbles during the winding process.
It achieves stable clamping of the battery cell and tight fitting of the tape, avoids jitter and bubbles of the tape during the winding process, and improves the stability and uniformity of the winding process.
Smart Images
Figure CN223432958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cylindrical lithium battery equipment, in particular to a cylindrical lithium battery winding and clamping assembly. Background Art
[0002] During the production of cylindrical lithium batteries, a specially designed tape is used to secure the insulation between the tabs and the winding area, as well as to prevent puncture. This improves the safety of production and subsequent use of cylindrical lithium batteries. The tape wrapping operation is performed after the battery cell is wound.
[0003] Since the weight of the battery cell is distributed differently in the circumferential direction, when winding the cylindrical lithium battery cell, radial displacement occurs due to the difference in centrifugal force, causing the tape to vibrate during winding and easily wrinkle, which has a great impact on the stability of the winding operation. Utility Model Content
[0004] In view of this, the purpose of the present invention is to provide a cylindrical lithium battery winding clamping assembly to solve the problem of displacement of the battery cell during rotation, which causes the wound tape to vibrate and affects the stability of the winding operation.
[0005] Based on the above objectives, the present invention provides a cylindrical lithium battery winding and clamping assembly, comprising a base and a support base fixed on the base, the cylindrical lithium battery winding and clamping assembly further comprising:
[0006] A vertical sliding seat is arranged on the supporting seat.
[0007] A lifting part is used to drive the vertical slide to move vertically up and down.
[0008] The positioning clamping part is arranged on the vertical sliding seat, and the positioning clamping part is used to limit and clamp the cylindrical lithium battery and drive the cylindrical lithium battery to rotate and wrap around the glue.
[0009] A compacting piece is provided on the support seat, and is used to compact the rubber strip when the cylindrical lithium battery is wound with rubber.
[0010] The positioning clamping portion includes two vertical sliding grooves vertically oppositely arranged on one vertical surface of the vertical sliding seat.
[0011] One end of the horizontal support arm is slidably arranged in the vertical sliding groove.
[0012] A double-headed telescopic cylinder is vertically fixed on the vertical slide, and the double-headed telescopic cylinder is used to drive the two horizontal arms to move closer to or away from each other in the vertical direction.
[0013] Two arc-shaped clamping arms are laterally arranged on the transverse support arm opposite to each other.
[0014] A driving member for driving the two arc-shaped clamping arms to move towards or away from each other in the transverse direction.
[0015] Preferably, the positioning and clamping part further comprises:
[0016] A dome-shaped piece arranged on the opposite side of each of the two transverse support arms.
[0017] A driving motor for driving the rotation of one of the dome-shaped pieces.
[0018] Preferably, the dome-shaped piece is arranged at the end of the transverse support arm away from the support base, and the dome-shaped piece is arranged between the two arc-shaped clamping arms.
[0019] Preferably, the double-acting telescopic cylinder is arranged between the two transverse support arms, and the two output ends of the double-acting telescopic cylinder are fixedly arranged on the two transverse support arms, respectively.
[0020] Preferably, the driving member comprises a transverse sliding groove arranged at the end of the transverse support arm away from the vertical sliding base, a transverse lead screw is rotatably arranged in the transverse sliding groove, one end of the transverse lead screw extends to the outside of the transverse support arm through one end of the transverse sliding groove, and a torsion block is fixedly arranged at one end of the transverse lead screw, and one end of the two arc-shaped clamping arms is arranged in a threaded sleeve on the outside of the transverse lead screw.
[0021] Preferably, the compaction member comprises:
[0022] A transverse telescopic cylinder fixedly arranged on the support base.
[0023] An extension arm fixed to the output end of the transverse telescopic cylinder.
[0024] A compression roller vertically rotatably arranged at one end of the extension arm.
[0025] Preferably, the compression roller is arranged between the two dome-shaped pieces in the vertical direction, and the compression roller is arranged outside the transverse support arm in the transverse direction.
[0026] Preferably, the lifting part comprises a vertical through screw hole arranged on the vertical sliding base, the vertical sliding base is slidably connected with a guide groove vertically arranged on the support base, a vertical lead screw is rotatably arranged in the guide groove, one end of the vertical lead screw is threadedly sleeved in the vertical through screw hole, and a servo motor for driving the rotation of the vertical lead screw.
[0027] The utility model discloses the beneficial effects of:
[0028] The utility model drives the vertically relatively distributed horizontal arms to approach each other through a double-head telescopic cylinder, so as to clamp and fix the cylindrical lithium battery, and cooperates with the two arc-shaped clamping arms that are laterally relatively distributed on the horizontal arms to limit the end of the cylindrical lithium battery, so as to avoid radial and axial displacement of the cylindrical lithium battery during winding, improve the flatness of the end face of the battery cell after winding, and improve the stability of the winding process. It can also be used in conjunction with a compacting piece, so that the cylindrical lithium battery can be constrained in the horizontal direction when rotating, so that the pressure roller fits tightly to the outside of the cylindrical lithium battery, and radially compacts the rubber strip during the winding process, so as to avoid wrinkles in the rubber strip during the winding process, and can remove bubbles in the adhesive surface by rolling to avoid bubbles affecting the adhesive effect of the adhesive surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0030] Figure 1 A three-dimensional diagram of the present invention Figure 1 ;
[0031] Figure 2 A three-dimensional diagram of the present invention Figure 2 ;
[0032] Figure 3 A three-dimensional diagram of the present invention Figure 3 ;
[0033] Figure 4 A three-dimensional diagram of the present invention Figure 4 .
[0034] The following are marked in the figure:
[0035] 1. Base; 2. Support seat; 3. Vertical slide seat; 4. Lifting part; 5. Positioning and clamping part; 51. Vertical slide groove; 52. Horizontal support arm; 53. Double-head telescopic cylinder; 54. Arc-shaped clamping arm; 55. Driving part; 551. Horizontal slide groove; 552. Horizontal screw rod; 553. Torsion block; 56. Dome piece; 57. Driving motor; 6. Compacting part; 61. Horizontal telescopic cylinder; 62. Extension arm; 63. Pressing roller. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0037] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0038] like Figures 1 to 4 As shown, a cylindrical lithium battery winding and clamping assembly includes a base 1 and a support base 2 fixed on the base 1. The cylindrical lithium battery winding and clamping assembly also includes:
[0039] A vertical sliding seat 3 is provided on the supporting seat 2 .
[0040] The lifting part 4 is used to drive the vertical slide 3 to move vertically up and down.
[0041] The positioning clamping part 5 is provided on the vertical slide 3, and is used for limiting and clamping the cylindrical lithium battery and driving the cylindrical lithium battery to rotate and wrap around the glue.
[0042] The compacting member 6 is provided on the support base 2 and is used to compact the rubber strip when the cylindrical lithium battery is wound with rubber.
[0043] The positioning clamping portion 5 includes two vertical sliding grooves 51 vertically oppositely provided on one vertical surface of the vertical sliding seat 3 .
[0044] One end of the horizontal support arm 52 is slidably disposed in the vertical sliding groove 51 .
[0045] A double-headed telescopic cylinder 53 is vertically fixed on the vertical slide 3, and the double-headed telescopic cylinder 53 is used to drive the two horizontal arms 52 to move toward or away from each other in the vertical direction.
[0046] Two arc-shaped clamping arms 54 are laterally arranged on the horizontal support arm 52. The arc-shaped clamping arms 54 on the two horizontal support arms 52 are respectively located on the opposite surfaces of the two horizontal support arms 52. In this way, when the battery cell is fixed, the top and bottom ends of the battery cell can be clamped and fixed respectively, thereby improving the fixing effect of the battery cell and improving the stability of the battery cell during the winding process.
[0047] A driving member 55 is used to drive the two arc-shaped clamping arms 54 to move toward or away from each other in the lateral direction.
[0048] like Figure 2 As shown, the positioning clamping portion 5 also includes:
[0049] Dome sheets 56 are respectively provided on opposite surfaces of the two transverse arms 52 .
[0050] A driving motor 57 is provided for driving one of the dome sheets 56 to rotate.
[0051] The dome piece 56 is located on an end of the transverse arm 52 away from the support base 2 , and the dome piece 56 is located between the two arc-shaped clamping arms 54 .
[0052] Since the two horizontal arms 52 are symmetrically distributed on the vertical slide 3 in the upper and lower directions, before the battery cell is fixed, the bottom of the battery cell can be placed on the top of the dome piece 56 on one end of the horizontal arm 52 close to the base 1, and then the driving member 55 on the same horizontal arm 52 is operated to make the two arc-shaped clamping arms 54 approach each other and clamped at the bottom end of the outside of the battery cell, and then the double-headed telescopic cylinder 53 is operated to contract to make the two dome pieces 56 approach each other until the battery cell is vertically clamped and fixed between the two dome pieces 56, and then the remaining driving member 55 is operated to make the remaining two arc-shaped clamping arms 54 clamped at the top end of the outside of the battery cell, so that the freedom of the battery cell in the horizontal direction can be constrained, and the freedom of the battery cell in the vertical direction can also be constrained, so that when the driving motor 57 drives one of the dome pieces 56 to rotate, it can synchronously drive the battery cell and the remaining dome piece 56 to rotate, so as to avoid displacement of the battery cell during winding, which affects the winding effect.
[0053] like Figure 1 and Figure 2 As shown, the double-headed telescopic cylinder 53 is located between the two transverse arms 52, and the two output ends of the double-headed telescopic cylinder 53 are respectively fixed on the two transverse arms 52. With this design, the two transverse arms 52 can be synchronously driven to move away from or closer to each other by controlling the extension and contraction of the double-headed telescopic cylinder 53.
[0054] like Figure 2 and Figure 3 As shown, the driving member 55 includes a horizontal sliding groove 551 provided on the horizontal support arm 52 away from one end of the vertical sliding seat 3, and a horizontal screw rod 552 is rotatably provided in the horizontal sliding groove 551, one end of the horizontal screw rod 552 passes through one end in the horizontal sliding groove 551 and extends to the outside of the horizontal support arm 52, and a torsion block 553 is fixedly provided at one end of the horizontal screw rod 552, and one end of the two arc-shaped clamping arms 54 is relatively threadedly sleeved on the outside of the horizontal screw rod 552. By twisting the torsion block 553 clockwise or counterclockwise, the torsion block drives the horizontal screw rod 552 to rotate synchronously, thereby driving the two arc-shaped clamping arms 54 closer to or away from each other. When the two arc-shaped clamping arms 54 approach each other, the horizontal freedom of the bottom and top ends of the battery cell can be constrained, thereby avoiding displacement of the battery cell due to the difference in circumferential gravity distribution when winding the glue, causing the tape to shake during winding, affecting the uniformity and stability of winding.
[0055] like Figure 1 and Figure 4 As shown, the compacting member 6 comprises:
[0056] A horizontal telescopic cylinder 61 is fixedly mounted on the support base 2 .
[0057] The extension arm 62 is fixed on the output end of the horizontal telescopic cylinder 61 , and the extension arm 62 is located outside the support base 2 .
[0058] The pressure roller 63 provided at one end of the extension arm 62 rotates vertically.
[0059] The pressure roller 63 is located between the two dome sheets 56 in the vertical direction, and is located outside the transverse arm 52 in the transverse direction.
[0060] Since the extension arm 62 is located outside the support seat 2, after the battery cell is fixed, when the horizontal telescopic cylinder 61 is controlled to extend, the extension arm 62 and the pressure roller 63 can be driven laterally away from the horizontal support arm 52. When the horizontal telescopic cylinder 61 is controlled to contract, the extension arm 62 and the pressure roller 63 can be driven laterally close to the horizontal support arm 52, so that the pressure roller 63 can contact the outside of the battery cell, and when the battery cell is wound with glue, the tape will pass between the pressure roller 63 and the battery cell after being pasted, so that the pressure roller 63 can compact the tape and discharge the bubbles between the tape and the battery cell, greatly reducing the bubbles between the two and reducing the influence of bubbles on the winding effect.
[0061] like Figure 1 As shown, the lifting part 4 includes a vertical through-screw hole provided on the vertical slide seat 3, the vertical slide seat 3 is slidably sleeved with a guide groove vertically provided on the support seat 2, a vertical screw rod is rotatably provided in the guide groove, one end of the vertical screw rod is threadedly sleeved in the vertical through-screw hole, and a servo motor for driving the vertical screw rod to rotate can adjust the height of the vertical slide seat 3 in the vertical direction through the lifting part 4, so as to adapt to the winding operation of battery cells of different specifications and expand the scope of application.
[0062] Working principle: After the battery cell is placed on the top of one of the dome pieces 56 close to the base 1, the horizontal screw rod 552 is turned to drive the two arc-shaped clamping arms 54 closer to each other until the inner wall of the arc-shaped clamping arms 54 touches the bottom end of the outside of the battery cell. Then the two conveying ends of the double-headed telescopic cylinder 53 are operated to retract, so that the two horizontal arms 52 are closer to each other until the remaining dome piece 56 is in contact with the top of the battery cell. Then the horizontal screw rod 552 close to the top of the battery cell is turned again until the two arc-shaped clamping arms 54 close to the top of the battery cell touch the top end of the outside of the battery cell. The battery cell is fixed, and then the horizontal telescopic cylinder 61 is operated to retract and drive The movable extension arm 62 and the pressure roller 63 are moved close to the arc surface outside the battery cell until the pressure roller 63 contacts the arc surface outside the battery cell, and then one end of the tape is neatly pasted on the arc surface outside the battery cell, and then the drive motor 57 is started to drive one of the dome pieces 56 to rotate. Through the extrusion force and friction between the top surface and bottom section of the battery cell and the two dome pieces 56, the dome piece 56 drives the battery cell to rotate synchronously, so that the tape can be wrapped around the outside of the battery cell. When the tape passes between the pressure roller 63 and the battery cell, the pressure roller 63 will compact the tape tightly against the outside of the battery cell to avoid more bubbles or wrinkles between the tape and the battery cell, which affects the winding effect.
[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0064] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A cylindrical lithium battery winding and clamping assembly, comprising a base (1) and a support base (2) fixedly arranged on the base (1), characterized in that: The cylindrical lithium battery adhesive clamping assembly further includes: A vertical sliding seat (3) provided on the supporting seat (2); A lifting portion (4) for driving the vertical slide seat (3) to vertically lift; A positioning clamping portion (5) is provided on the vertical sliding seat (3), and the positioning clamping portion (5) is used to limit and clamp the cylindrical lithium battery and drive the cylindrical lithium battery to rotate and wrap around the rubber; A compacting member (6) provided on the support seat (2), the compacting member (6) being used to compact the rubber strip when the cylindrical lithium battery is wound with rubber; The positioning clamping portion (5) comprises two vertical sliding grooves (51) arranged vertically opposite to each other on one vertical surface of the vertical sliding seat (3); A horizontal support arm (52) with one end slidingly arranged in the vertical sliding groove (51); A double-headed telescopic cylinder (53) is vertically fixed on the vertical slide seat (3), and the double-headed telescopic cylinder (53) is used to drive the two horizontal arms (52) to move toward or away from each other in the vertical direction; Two arc-shaped clamping arms (54) are laterally arranged on the transverse support arm (52); A driving member (55) is used for driving the two arc-shaped clamping arms (54) to move toward or away from each other in the transverse direction.
2. The cylindrical lithium battery winding and clamping assembly according to claim 1, characterized in that: The positioning clamping portion (5) further comprises: Dome sheets (56) are respectively arranged on opposite surfaces of the two transverse arms (52); A driving motor (57) is used to drive one of the dome sheets (56) to rotate.
3. The cylindrical lithium battery winding and clamping assembly according to claim 2, characterized in that: The dome sheet (56) is located on one end of the transverse arm (52) away from the support seat (2), and the dome sheet (56) is located between the two arc-shaped clamping arms (54).
4. The cylindrical lithium battery winding and clamping assembly according to claim 3, characterized in that: The double-headed telescopic cylinder (53) is located between the two transverse arms (52), and the two output ends of the double-headed telescopic cylinder (53) are respectively fixed on the two transverse arms (52).
5. The cylindrical lithium battery winding and clamping assembly according to claim 4, characterized in that: The driving member (55) includes a horizontal sliding groove (551) provided on one end of the horizontal support arm (52) away from the vertical sliding seat (3), a horizontal screw rod (552) is rotatably provided in the horizontal sliding groove (551), one end of the horizontal screw rod (552) passes through one end in the horizontal sliding groove (551) and extends to the outside of the horizontal support arm (52), and a torsion block (553) is fixedly provided at one end of the horizontal screw rod (552), and one end of the two arc-shaped clamping arms (54) is relatively threadedly sleeved on the outside of the horizontal screw rod (552).
6. The cylindrical lithium battery winding and clamping assembly according to claim 5, characterized in that: The compacting member (6) comprises: a horizontally arranged telescopic cylinder (61) fixedly arranged on the support seat (2); An extension arm (62) fixed to the output end of the horizontal telescopic cylinder (61); A pressure roller (63) is arranged at one end of the extension arm (62) and is vertically rotated.
7. The cylindrical lithium battery winding and clamping assembly according to claim 6, characterized in that: The pressing roller (63) is located between the two dome sheets (56) in the vertical direction, and the pressing roller (63) is located outside the transverse arm (52) in the transverse direction.
8. The cylindrical lithium battery winding and clamping assembly according to claim 1, characterized in that: The lifting part (4) includes a vertical through-screw hole provided on the vertical slide seat (3), the vertical slide seat (3) is slidably sleeved with a guide groove vertically provided on the support seat (2), a vertical screw rod is rotatably provided in the guide groove, one end of the vertical screw rod is threadedly sleeved in the vertical through-screw hole, and is used to drive a servo motor to rotate the vertical screw rod.