Lithium battery upper cover production pressure welding device

Abstract

The utility model belongs to the technical field of lithium battery upper cover production and pressure welding devices, and particularly relates to a lithium battery upper cover production and pressure welding device which comprises a main board. A feeding device is mounted on the main plate; stamping cavities are formed in the top end face of the rotating bottom plate at equal intervals. A conveying belt is mounted outside the section of the roller in a sleeving manner; a sliding cavity is formed in the top of the positioning frame; a connecting hole is formed in the bottom end face of the end, away from the fixing frame, of the sliding cavity. A convenient demolding device is mounted on the connecting rod; a gear is mounted at the end part of an output shaft of the second small motor; gear teeth are installed on the end face of the inner wall of the acting groove at equal intervals. Push rods are fixedly connected to the bottom of the lifting plate at equal intervals. Through holes are formed in the top end face of the pressing plate at equal intervals. Through the combined action of the feeding device and the convenient demolding device, the upper cover plate to be subjected to pressure welding is subjected to pressure welding, the effect of automatic feeding is achieved, the precision of pressure welding operation is improved, and the effect of rapid demolding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure welding devices for producing upper covers of lithium batteries, in particular to a pressure welding device for producing upper covers of lithium batteries. Background Art

[0002] In the process of lithium battery production, in addition to the production of the battery body, it is also necessary to use a pressure welding device to perform pressure welding on the upper cover of the lithium battery;

[0003] The existing pressure welding device is composed of a pressure welding head, a pressure welding base, a power device, a telescopic rod and other structures. By placing the cover plate to be pressure welded on the pressure welding base, turning on the power device, and under the action of the telescopic rod, the pressure welding head moves to realize the production of the lithium battery cover;

[0004] However, the existing pressure welding device cannot automatically feed materials when it is in use. It takes a lot of time to place the cover plate to be pressure welded on the pressure welding base, and the position of the cover plate needs to be adjusted, which not only leads to low pressure welding accuracy, but also makes the feeding efficiency of the pressure welding operation low. In addition, after the pressure welding device is operated, the pressure welding head rises, and the formed upper cover will be stuck inside the pressure welding head, so it is necessary to add a demolding process, which makes the pressure welding operation complicated and the demolding speed slow. Therefore, in view of the above problems, a lithium battery upper cover production pressure welding device is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve some existing problems of pressure welding devices for producing lithium battery upper covers, the utility model provides a pressure welding device for producing lithium battery upper covers.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: the utility model is a pressure welding device for producing upper covers of lithium batteries, comprising a main board; support rods are fixedly connected to the four corners of the bottom of the main board; a fixing plate is fixedly connected to the bottom of the support rod; a feeding device is installed on the main board; the feeding device comprises an installation cavity; an installation cavity is opened at the top center of the main board; a motor is installed inside the installation cavity; a rotating bottom plate is installed at the top of the output shaft of the motor; stamping cavities are opened at equal distances on the top end surface of the rotating bottom plate; a pressure welding base is fixedly connected to the center of the bottom surface of the inner wall of the stamping cavity;

[0007] A fixing frame is fixedly connected to one side of the outer curved surface of the main board; rollers are rotatably installed at both ends of the fixing frame body; a conveyor belt is sleeved and installed on the outer side of the cross section of the roller; a small motor No. 1 is installed at one end of the outer side surface of the fixing frame; the output shaft end of the small motor No. 1 passes through the body of the fixing frame and is connected to the roller; a positioning frame is fixedly connected to the end of the fixing frame away from the small motor No. 1; a sliding cavity is provided on the top of the positioning frame; a connecting hole is provided on the bottom end surface of the end of the sliding cavity away from the fixing frame; the movement frequency of the small motor No. 1 and the motor can be kept consistent; the feeding effect of the pressure welding device is realized.

[0008] Preferably, the top end face of the sliding cavity is inclined, and the inclination of its bottom end face decreases toward the rotating bottom plate; the opening diameter of the connecting hole is equal to the opening diameter of the stamping cavity; the vertical center straight line of the connecting hole can coincide with the vertical center straight line of the stamping cavity; thereby ensuring that the feeding device can function smoothly.

[0009] Preferably, an action frame is fixedly connected to the top end surface of one end of the main board away from the fixed frame; a hydraulic cylinder is installed at the bottom of the cross bar of the action frame; a telescopic rod is installed at the bottom of the hydraulic cylinder; a connecting rod is fixedly connected to the bottom of the telescopic rod; a pressure welding head is fixedly connected to the bottom of the connecting rod; a pressure plate is fixedly connected to the bottom of the pressure welding head; pressure grooves are provided inside the pressure welding head and the pressure plate; the pressure welding effect on the upper cover plate is achieved.

[0010] Preferably, a demoulding device is installed on the connecting rod; the demoulding device includes a lifting plate; a through cavity is opened inside the lifting plate; the lifting plate is sleeved on the outside of the cross section of the connecting rod through the through cavity; a rotating groove is opened on one side of the inner wall of the through cavity; a No. 2 small motor is installed at one end of the inner wall of the rotating groove; a gear is installed at the end of the output shaft of the No. 2 small motor; the effect of providing power for the demoulding device is achieved.

[0011] Preferably, an action groove is opened on one side surface of the connecting rod; gear teeth are equidistantly installed on the inner wall end surface of the action groove; the action range of the gear exceeds the action range of the rotating groove; the gear is meshed with the gear teeth; and the effect of the lifting plate being able to move up and down is ensured.

[0012] Preferably, push rods are fixedly connected at equal distances to the bottom of the lifting plate; through holes are opened at equal distances on the top end surface of the pressure plate; the opening diameter of the through holes is larger than the cross-sectional diameter of the push rods; the push rods can move and extend along the through holes, thereby achieving the effect of rapid demoulding.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model uses the structural design of the feeding device to turn on the motor inside the installation cavity, and the output shaft drives the rotating base plate to rotate periodically. When the rotating base plate stops, the opening at the top of the stamping cavity coincides with the opening at the bottom of the connecting hole. Then, the upper cover plate to be press-welded is placed on the top of the conveyor belt, and the No. 1 small motor is turned on. The roller drives the conveyor belt to rotate, so that the upper cover plate to be press-welded moves periodically toward the fixed frame. After the upper cover plate to be press-welded falls into the sliding cavity of the positioning frame, it enters the stamping cavity through the connecting hole. After the stamping cavity drives the upper cover plate to be press-welded to move to the action range of the action frame, the rotating base plate stops rotating intermittently, the hydraulic cylinder acts, the telescopic rod drives the connecting rod to move downward, and the pressing head and the pressing plate move toward the stamping cavity accordingly. Under the action of the pressing welding base, the pressing welding effect on the upper cover plate to be press-welded is realized, the effect of automatic feeding is achieved, and the accuracy of the pressing welding operation is improved.

[0015] 2. The utility model adopts the structural design of the demoulding device. After the pressure welding head and the pressure plate are operated, they move upward. At this time, the No. 2 small motor inside the rotating groove works, and the output shaft drives the gear to rotate. With the cooperation of the gear teeth inside the action groove, the lifting plate drives the push rod to move toward the through hole. The push rod passes through the through hole, so that the forming upper cover stuck on the pressure plate is detached, which achieves the effect of rapid demoulding and improves the efficiency of the pressure welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is an isometric structural diagram;

[0018] Figure 2 is a schematic diagram of the structure of the rotating base plate;

[0019] Figure 3 It is a schematic diagram of the structure of some parts and components of the feeding device;

[0020] Figure 4 It is a structural schematic diagram of a pressure welding head;

[0021] Figure 5 It is a structural schematic diagram of the lifting plate;

[0022] Figure 6 This is an isometric structural diagram.

[0023] In the figure: 1. main board; 2. support rod; 3. fixed plate; 401. installation cavity; 402. motor; 403. rotating bottom plate; 404. stamping cavity; 405. pressure welding base; 406. fixed frame; 407. small motor No. 1; 408. roller; 409. conveyor belt; 410. positioning frame; 411. sliding cavity; 412. connecting hole; 413. action frame; 414. hydraulic cylinder; 415. telescopic rod; 416. connecting rod; 417. pressure welding head; 418. pressing plate; 501. lifting plate; 502. through cavity; 503. rotating groove; 504. small motor No. 2; 505. gear; 506. action groove; 507. gear tooth; 508. push rod; 509. through hole; 6. fixed block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 As shown, a pressure welding device for producing a lithium battery upper cover comprises a mainboard 1; support rods 2 are fixedly connected to the four corners of the bottom of the mainboard 1; a fixing plate 3 is fixedly connected to the bottom of the support rod 2; a feeding device is installed on the mainboard 1; the feeding device comprises a mounting cavity 401; a mounting cavity 401 is opened at the top center of the mainboard 1; a motor 402 is installed inside the mounting cavity 401; a rotating bottom plate 403 is installed at the top of the output shaft of the motor 402; stamping cavities 404 are equidistantly opened on the top end surface of the rotating bottom plate 403; a pressure welding base 405 is fixedly connected to the center of the bottom surface of the inner wall of the stamping cavity 404;

[0026] A fixing frame 406 is fixedly connected to one side of the outer curved surface of the main board 1; rollers 408 are rotatably installed at both ends of the fixing frame 406; a conveyor belt 409 is sleeved and installed on the outside of the cross section of the roller 408; a small motor No. 1 407 is installed at one end of the outer side surface of the fixing frame 406; the output shaft end of the small motor No. 1 407 passes through the body of the fixing frame 406 and is connected to the roller 408; a positioning frame 410 is fixedly connected to the end of the fixing frame 406 away from the small motor No. 1 407; a sliding cavity 411 is provided at the top of the positioning frame 410; a connecting hole 412 is provided on the bottom end surface of the end of the sliding cavity 411 away from the fixing frame 406; the movement frequency of the small motor No. 1 407 and the motor 402 can be kept consistent; the top end surface of the sliding cavity 411 is inclined The main board 1 is inclined, and the inclination of its bottom end face decreases toward the rotating bottom plate 403; the opening diameter of the connecting hole 412 is equal to the opening diameter of the stamping cavity 404; the vertical center line of the connecting hole 412 can coincide with the vertical center line of the stamping cavity 404; an action frame 413 is fixedly connected to the top end face of one end of the main board 1 away from the fixing frame 406; a hydraulic cylinder 414 is installed at the bottom of the cross bar of the action frame 413; a telescopic rod 415 is installed at the bottom of the hydraulic cylinder 414; a connecting rod 416 is fixedly connected to the bottom of the telescopic rod 415; a pressure welding head 417 is fixedly connected to the bottom of the connecting rod 416; a pressure plate 418 is fixedly connected to the bottom of the pressure welding head 417; a pressure groove is opened inside the pressure welding head 417 and the pressure plate 418; when working, in the process of lithium battery production, In addition to the production of the battery body, it is also necessary to use a pressure welding device to perform pressure welding operations on the upper cover of the lithium battery. However, the existing pressure welding device cannot achieve automatic feeding when it is in effect, and it takes a lot of time to place the cover plate to be pressure welded on the pressure welding base, and the position of the cover plate needs to be adjusted, which not only leads to low pressure welding accuracy, but also makes the feeding efficiency of the pressure welding operation low. The present application is implemented through the feeding device, the motor 402 inside the installation cavity 401 is opened, and the output shaft drives the rotating base plate 403 to rotate periodically, and when the rotating base plate 403 stops, the opening at the top of the stamping cavity 404 coincides with the opening at the bottom of the connecting hole 412, and then, the upper cover plate to be pressure welded is placed on the top of the conveyor belt 409, and a small The motor 407 and the roller 408 drive the conveyor belt 409 to rotate, so that the upper cover plate to be press-welded moves periodically toward the fixed frame 406. After the upper cover plate to be press-welded falls into the sliding cavity 411 of the positioning frame 410, it enters the stamping cavity 404 through the connecting hole 412. After the stamping cavity 404 drives the upper cover plate to be press-welded to move to the action range of the action frame 413, the rotating bottom plate 403 stops rotating intermittently, the hydraulic cylinder 414 acts, the telescopic rod 415 drives the connecting rod 416 to move downward, and the press welding head 417 and the pressing plate 418 move toward the stamping cavity 404 accordingly. Under the action of the press welding base 405, the press welding effect on the upper cover plate to be press-welded is realized, the effect of automatic feeding is achieved, and the accuracy of the press welding operation is improved.

[0027] See also Figure 4-5 As shown, a demoulding device is installed on the connecting rod 416; the demoulding device includes a lifting plate 501; a through cavity 502 is opened inside the lifting plate 501; the lifting plate 501 is sleeved on the outside of the cross section of the connecting rod 416 through the through cavity 502; a rotating groove 503 is opened on one side of the inner wall of the through cavity 502; a small motor No. 2 504 is installed at one end of the inner wall of the rotating groove 503; a gear 505 is installed on the output shaft end of the small motor No. 2 504; an action groove 506 is opened on one side of the connecting rod 416; gear teeth 507 are equidistantly installed on the inner wall end face of the action groove 506; the action range of the gear 505 exceeds the action range of the rotating groove 503; the gear 505 is meshed with the gear teeth 507; a push rod 508 is equidistantly fixed to the bottom of the lifting plate 501; through holes 509 are equidistantly opened on the top end face of the pressing plate 418; The opening diameter of the through hole 509 is larger than the cross-sectional diameter of the push rod 508; the push rod 508 can move and extend along the through hole 509; during operation, after the pressure welding device is operated, the pressure welding head rises, and the formed upper cover will be stuck inside the pressure welding head, and it is necessary to increase the demoulding process, which makes the pressure welding operation complicated and the demoulding speed is slow. The present application is carried out through a demoulding device, which moves upward after the pressure welding head 417 and the pressure plate 418 are operated. At this time, the No. 2 small motor 504 inside the rotating groove 503 is activated, and the output shaft drives the gear 505 to rotate. With the cooperation of the gear 507 inside the action groove 506, the lifting plate 501 drives the push rod 508 to move toward the through hole 509. The push rod 508 passes through the through hole 509, so that the formed upper cover stuck on the pressure plate 418 is detached, achieving the effect of rapid demoulding and improving the efficiency of the pressure welding operation.

[0028] See also Figure 6 As shown, as another embodiment of the utility model, a fixing block 6 is installed on the cross bar of the action frame 413 and the hydraulic cylinder 414; when working, it can ensure that the hydraulic cylinder 414 can have a more stable action state when it is in action.

[0029] Working principle: In the process of lithium battery production, in addition to the production of the battery body, it is also necessary to use a pressure welding device to perform pressure welding on the upper cover of the lithium battery. However, the existing pressure welding device cannot automatically feed when it is in effect. It takes a lot of time to place the cover plate to be pressure welded on the pressure welding base, and the position of the cover plate needs to be adjusted, which not only leads to low pressure welding accuracy, but also makes the feeding efficiency of the pressure welding operation low. The present application uses the feeding device to open the motor 402 inside the installation cavity 401, and the output shaft drives the rotating bottom plate 403 The upper cover plate to be welded is periodically rotated, and when the rotating bottom plate 403 stops, the opening at the top of the punching cavity 404 coincides with the opening at the bottom of the connecting hole 412, and then, the upper cover plate to be welded is placed on the top of the conveyor belt 409, and the No. 1 small motor 407 is turned on, and the roller 408 drives the conveyor belt 409 to rotate, so that the upper cover plate to be welded periodically moves toward the fixed frame 406, and after the upper cover plate to be welded falls into the sliding cavity 411 of the positioning frame 410, it enters the punching cavity 404 through the connecting hole 412, and the punching cavity 404 drives the upper cover plate to be welded to move to After the action frame 413 reaches the action range, the rotating bottom plate 403 stops rotating intermittently, the hydraulic cylinder 414 acts, the telescopic rod 415 drives the connecting rod 416 to move downward, and the pressure welding head 417 and the pressure plate 418 move toward the stamping cavity 404. Under the action of the pressure welding base 405, the pressure welding effect on the upper cover to be pressure welded is achieved, the effect of automatic feeding is achieved, and the accuracy of the pressure welding operation is improved; in addition, after the pressure welding device is operated, the pressure welding head rises, and the formed upper cover will be stuck inside the pressure welding head, so it is necessary to increase the demoulding process, which makes the pressure welding operation The operation is complicated and the demoulding speed is slow. The present application uses a demoulding device to work. After the pressure welding head 417 and the pressure plate 418 work, they move upward. At this time, the second small motor 504 inside the rotating groove 503 works, and the output shaft drives the gear 505 to rotate. With the cooperation of the gear 507 inside the action groove 506, the lifting plate 501 drives the push rod 508 to move toward the through hole 509. The push rod 508 passes through the through hole 509, so that the molded upper cover stuck on the pressure plate 418 is detached, achieving the effect of rapid demoulding and improving the efficiency of the pressure welding operation.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A pressure welding device for producing a lithium battery upper cover, comprising a main board (1); support rods (2) are fixedly connected to the four corners of the bottom of the main board (1); a fixing plate (3) is fixedly connected to the bottom of the support rod (2); a feeding device is installed on the main board (1); the characteristics are: The feeding device comprises an installation cavity (401); the installation cavity (401) is provided at the top center of the main board (1); a motor (402) is installed inside the installation cavity (401); a rotating base plate (403) is installed at the top of the output shaft of the motor (402); stamping cavities (404) are provided at equal intervals on the top end surface of the rotating base plate (403); a pressure welding base (405) is fixedly connected to the center of the bottom surface of the inner wall of the stamping cavity (404); A fixing frame (406) is fixedly connected to one side of the outer curved surface of the main board (1); rollers (408) are rotatably mounted on both ends of the fixing frame (406); a conveyor belt (409) is sleeved and mounted on the outside of the cross section of the roller (408); a small motor No. 1 (407) is mounted on one end of the outer side surface of the fixing frame (406); the output shaft end of the small motor No. 1 (407) passes through the body of the fixing frame (406) and is connected to the roller (408); a positioning frame (410) is fixedly connected to one end of the fixing frame (406) away from the small motor No. 1 (407); a sliding cavity (411) is provided on the top of the positioning frame (410); a connecting hole (412) is provided on the bottom end surface of the end of the sliding cavity (411) away from the fixing frame (406); the movement frequency of the small motor No. 1 (407) and the motor (402) can be kept consistent.

2. A pressure welding device for producing a lithium battery upper cover according to claim 1, characterized in that: The top end face of the sliding cavity (411) is inclined, and the inclination of the bottom end face decreases toward the rotating bottom plate (403); the opening diameter of the connecting hole (412) is equal to the opening diameter of the stamping cavity (404); the vertical center straight line of the connecting hole (412) can coincide with the vertical center straight line of the stamping cavity (404).

3. A pressure welding device for producing a lithium battery upper cover according to claim 2, characterized in that: An action frame (413) is fixedly connected to the top end surface of one end of the main board (1) away from the fixed frame (406); a hydraulic cylinder (414) is installed at the bottom of the cross bar of the action frame (413); a telescopic rod (415) is installed at the bottom of the hydraulic cylinder (414); a connecting rod (416) is fixedly connected to the bottom of the telescopic rod (415); a pressure welding head (417) is fixedly connected to the bottom of the connecting rod (416); a pressure plate (418) is fixedly connected to the bottom of the pressure welding head (417); and pressure grooves are provided inside the pressure welding head (417) and the pressure plate (418).

4. A pressure welding device for producing a lithium battery upper cover according to claim 3, characterized in that: A demoulding device is installed on the connecting rod (416); the demoulding device includes a lifting plate (501); a through cavity (502) is provided inside the lifting plate (501); the lifting plate (501) is sleeved on the outside of the cross section of the connecting rod (416) through the through cavity (502); a rotating groove (503) is provided on one side of the inner wall of the through cavity (502); a second small motor (504) is installed at one end of the inner wall of the rotating groove (503); a gear (505) is installed at the end of the output shaft of the second small motor (504).

5. A pressure welding device for producing a lithium battery upper cover according to claim 4, characterized in that: An action groove (506) is provided on one side surface of the connecting rod (416); gear teeth (507) are equidistantly installed on the inner wall end surface of the action groove (506); the action range of the gear (505) exceeds the action range of the rotation groove (503); and the gear (505) meshes with the gear teeth (507).

6. A pressure welding device for producing a lithium battery upper cover according to claim 5, characterized in that: The bottom of the lifting plate (501) is fixedly connected with push rods (508) at equal intervals; the top end surface of the pressing plate (418) is provided with through holes (509) at equal intervals; the opening diameter of the through holes (509) is larger than the cross-sectional diameter of the push rods (508); the push rods (508) can move along the through holes (509) and extend out.

Images