CN214392975U

CN214392975U - Seal welding tool and seal welding equipment

Info

Publication number: CN214392975U
Application number: CN202022789053.XU
Authority: CN
Inventors: 冉昌林; 王高鹏; 成瑞珍
Original assignee: Jiangsu Yifei Laser Equipment Co ltd
Current assignee: Jiangsu Yifei Laser Equipment Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-10-15
Anticipated expiration: 2030-11-26

Abstract

The utility model provides a seal welding tool and seal welding equipment, which comprises a base, a driving guide sleeve, a driven guide sleeve, a riding wheel, a pressing wheel, a driven pressing head and a driving pressing head, wherein the riding wheel and the driving pressing head are both arranged on the base, the pressing wheel can be rotatably arranged on the base and is positioned above the riding wheel, the riding wheel and the pressing wheel are mutually matched to radially limit the position of an electric core to be welded, the driving guide sleeve is slidably arranged on the base and is movably sleeved on the driving pressing head, the driven pressing head is arranged on the driven pressing plate, the driven pressing plate is slidably arranged on the base through a linear driving unit, the driven guide sleeve is slidably arranged on the driven pressing plate and is movably sleeved on the driven pressing head, the driven guide sleeve and the driving guide sleeve are coaxially arranged, the driven pressing head and the driving pressing head are mutually matched to axially limit the position of the electric core to be welded, the driving pressing head is connected with a rotary driving mechanism, the linear driving unit adopts a driving structure capable of controlling the driven pressing head to act on the magnitude of acting force of the end face of the electric core to be welded, to improve centering accuracy.

Description

Seal welding tool and seal welding equipment

Technical Field

The utility model relates to an electricity core production manufacture equipment technical field especially relates to a seal welding frock and seal welding equipment.

Background

The cylindrical cell involves multiple operations in the manufacturing process, such as tab welding, seal welding, etc. With the rapid development of the power battery industry, higher requirements are put forward on the production and manufacturing efficiency of the cylindrical battery core. In traditional seal welding operation, install cylinder electricity core and operate it with the help of welding equipment after welding the frock and go up, treat after the welding is accomplished and take off the back with the electric core after the welding and change another again and treat the welding electricity core, whole welding operation need wait for the welding to accomplish just can the material loading, and welding efficiency is low. In addition, in the welding process, the secondary cover closing of the cylindrical battery core is involved, and the quality of the secondary cover closing is difficult to guarantee by the existing seal welding tool, so that the final welding quality is poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a seal welding frock and seal welding equipment for seal welding frock secondary closes the defect that the lid quality is poor among the solution prior art, improves the centering effect that the secondary closed the lid in order to ensure welding quality.

The embodiment of the utility model provides a seal welding frock, including the base, still include initiative uide bushing, driven uide bushing, riding wheel, pinch roller, driven pressure head and initiative pressure head, the riding wheel with the initiative pressure head is all installed in the base, the pinch roller rotatable mounting in the base is located the top of riding wheel, the riding wheel with the pinch roller mutually supports in order to radially to prescribe a limit to wait to weld the position of dress electricity core, initiative uide bushing slidable mounting in the base and movable sleeve locate the initiative pressure head, driven pressure head is installed in driven pressure plate, driven pressure plate through sharp drive unit slidable mounting in the base, driven uide bushing slidable mounting in driven pressure plate and movable sleeve locate the driven pressure head, driven uide bushing with the coaxial setting of initiative uide bushing, driven pressure head with the initiative pressure head mutually supports in order to prescribe a limit to weld the position of dress electricity core axially, the driving pressure head is connected with the rotary driving mechanism, and the linear driving unit adopts a driving structure capable of controlling the driven pressure head to act on the acting force of the end face of the battery core to be welded.

According to the utility model discloses a seal welding frock, the slide has been constructed on the base, driven pressure head is rotatable to be installed in the pressure head seat, pressure head seat fixed mounting in driven clamp plate, driven clamp plate installation slide rail, driven uide bushing through first uide bushing drive unit slidable mounting in the slide rail, sharp drive unit's drive end with driven clamp plate fixed connection.

According to the utility model discloses a seal welding frock of an embodiment, linear drive unit is the linear motion cylinder.

According to the utility model discloses a seal welding frock, the pinch roller is rotatable to be installed in the swinging boom, the swinging boom links to each other with the drive end of rotary driving unit, rotary driving unit fixed mounting in the base.

According to the utility model discloses a seal welding frock still includes the riding wheel seat, the riding wheel seat install in the base, the both ends of riding wheel rotate with the supporting seat respectively and are connected, the supporting seat with connect or can dismantle the connection with the riding wheel seat is adjustable.

According to the utility model discloses a seal welding frock, the initiative uide bushing pass through second uide bushing drive unit slidable mounting in the slide.

According to the utility model discloses a seal welding frock, the initiative pressure head is rotatable to be installed in the pressure head mount pad, the pressure head mount pad with base fixed connection, seal welding frock still includes the clutch, rotary drive mechanism passes through the clutch with initiative pressure head selectivity joint.

According to the utility model discloses a seal welding frock, the initiative uide bushing with base fixed connection.

According to the utility model discloses a seal welding frock, the setting element of initiative uide bushing for being equipped with the bell mouth, the initiative uide bushing with initiative pressure head integrated into one piece.

The embodiment of the utility model provides a still provide a seal welding equipment, include as above seal welding frock.

The embodiment of the utility model provides a seal welding frock and seal welding equipment, treat through driven uide bushing and initiative uide bushing and weld the dress electricity core and tentatively lead and spacing, avoid current collecting disc and casing to take place the dislocation, improve the centering degree of accuracy that the secondary closed the lid, with the help of sharp drive unit control pretightning force size, ensure that the difference treats that the welding quality of dress electricity core is unanimous, the axial of treating the dress electricity core of welding is injectd with the initiative pressure head with the help of driven pressure head, riding wheel and pinch roller are mutually supported the restriction and are treated the radial of dress electricity core of welding, rotary drive mechanism drives the initiative pressure head, and then the drive treats that the dress electricity core of welding rotates under the injectment of riding wheel and pinch roller, be convenient for treat that the dress electricity core of welding carries out the circumference welding.

Drawings

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

Fig. 1 is a perspective view of a seal welding tool provided in an embodiment of the present invention;

FIG. 2 is a partial block diagram of the seal welding tool shown in FIG. 1;

fig. 3 is another partial structural view of the seal welding tool shown in fig. 1.

Reference numerals:

10. a base; 11. a chute; 12. a slideway; 20. a riding wheel; 21. a riding wheel seat; 22. a supporting seat; 23. accommodating grooves; 24. a proximity switch; 30. a pinch roller; 31. a rotating arm; 32. a rotation driving unit; 40. a driven pressure head; 41. a driven pressure plate; 42. a press head seat; 43. a slide rail; 50. an active pressure head; 51. a pressure head mounting base; 60. an active guide sleeve; 61. a second guide sleeve driving unit; 70. a driven guide sleeve; 71. a first guide bush drive unit; 72. a guide through hole; 80. a linear drive unit; 90. a rotation driving mechanism; 91. a clutch; 92. a servo motor; 93. a speed reducer; 100. a buffer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a perspective view of a seal welding tool provided by an embodiment of the present invention. As shown in fig. 1, the seal welding tool includes a base 10, a riding wheel 20, a pressing wheel 30, a driven pressing head 40, a driving pressing head 50, a driving guide sleeve 60 and a driven guide sleeve 70. The riding wheel 20 and the active pressing head 50 are both mounted on the base 10, the pressing wheel 30 is rotatably mounted on the base 10 and located above the riding wheel 20, and the riding wheel 20 and the pressing wheel 30 cooperate with each other to radially limit the position of a cell to be welded. The driving guide sleeve 60 is slidably mounted on the base 10 and movably sleeved on the driving pressure head 50, the driven pressure head 40 is mounted on the driven pressure plate 41, and the driven pressure plate 41 is slidably mounted on the base 10 through the linear driving unit 80. The driven guide sleeve 70 is slidably mounted on the driven pressure plate 41 and movably sleeved on the driven pressure head 40. The driven guide sleeve 70 and the driving guide sleeve 60 are coaxially arranged, the driven pressure head 40 and the driving pressure head 50 are mutually matched to axially limit the position of a battery core to be welded, and the driving pressure head 50 is connected with the rotary driving mechanism 90. The linear driving unit 80 adopts a driving structure, such as a linear motion cylinder or an electric push rod, which can control the driven pressure head 40 to act on the acting force of the end face of the electrical core to be welded.

When the welding device is used, a cell to be welded is placed on the riding wheel 20 and abutted against the driving pressure head 50, the pressing wheel 30 rotates relative to the base 10 and is pressed on the cell to be welded, and the axial degree of freedom and the radial degree of freedom of the cell to be welded are limited by the mutual matching of the pressing wheel 30 and the riding wheel 20. The coaxially arranged driven guide sleeve 70 and the driving guide sleeve 60 move relatively to a preset position to preliminarily define the axial position of the cell to be welded, so that the relative positions of the current collecting disc and the aluminum shell are defined before the driven pressure head 40 and the driving pressure head 50 clamp the cell to be welded. Then, under the action of the linear driving unit 80, the driven pressure head 40 slides relative to the base 10 and drives the driven guide sleeve 70 to move together until the driven guide sleeve abuts against the battery cell to be welded, and the pressing force of the driven pressure head 40 is controlled by the linear driving unit 80, so that when different battery cells of the same type are placed in the sealing welding tool, a gap between the current collecting disc and the aluminum shell cannot exist or deformation cannot occur due to different acting forces. Finally, under the action of the rotation driving mechanism 90, the driving pressure head 50 rotates to drive the to-be-welded battery cell to rotate around the battery cell axis under the action of the riding wheels 20 and the pressing wheel 30, so that the welding operation of the welding head on the circumferential direction of the to-be-welded battery cell is facilitated. It will be appreciated that the idler 20, the pressure wheel 30, the driven ram 40 and the driving ram 50 are all rotatable relative to the base 10.

The embodiment of the utility model provides a seal welding frock, treat through driven uide bushing 70 and initiative uide bushing 60 and weld the dress electricity core and tentatively lead and spacing, avoid current collecting tray and casing to take place the dislocation, with the help of sharp drive unit 80 control pretightning force size, ensure that the difference treats that the welding quality of dress electricity core is unanimous, the axial of waiting to weld the dress electricity core is injectd with the initiative pressure head 50 with the help of driven pressure head 40, riding wheel 20 and pinch roller 30 mutually support the restriction and treat the footpath of welding dress electricity core, rotary drive mechanism 90 drives initiative pressure head 50, and then it is rotatory under riding wheel 20 and pinch roller 30's restriction to drive to treat to weld the dress electricity core, be convenient for treat to weld the dress electricity core and carry out the circumference welding. This seal welding frock and welding equipment cooperate, can assemble another welding of waiting to adorn electric core with another seal welding frock in the welded, improve welding efficiency.

Wherein, the bottom of the base 10 is provided with a chute 11 for slidably mounting on the welding equipment. Be equipped with sharp slide on the welding equipment, 11 slidable mounting of spout are on sharp slide, and two seal weld welding frock are mutually supported, and one slides and carries out welding operation to the welding area, and another carries out the material loading by the manual work down on line to realize seamless linking after welding is accomplished to the dress electricity core of treating, improve welding efficiency. Of course, the base 10 may be directly mounted on the linear guide without providing the slide groove 11.

As shown in fig. 1, the base 10 is provided with a slide way 12, the driven ram 40 is rotatably mounted on a ram seat 42, and the ram seat 42 is fixedly mounted on a driven platen 41. The slide rail 43 is installed on the driven pressure plate 41, the driven guide sleeve 70 is slidably installed on the slide rail 43 through the first guide sleeve driving unit 71, and the driving end of the linear driving unit 80 is fixedly connected with the driven pressure plate 41. Driven by the linear driving unit 80, the driven pressure plate 41 slides along the slideway 12, and the sliding direction of the driven pressure plate is along the axial direction of the battery core to be welded. When the linear driving unit 80 drives the driven pressure head 40 to move for a preset distance and then abut against the end of the to-be-welded battery cell, the driven guide sleeve 70 moves together with the driven pressure head. Wherein, the first guide sleeve driving unit 71 can be fixedly installed with the driven pressing plate 41 or the base 10. For example, the first guide bush drive unit 71 is fixedly mounted on the base 10, and the driven pressing plate 41 is configured with an outer edge for cooperating with the first guide bush drive unit 71. Slide rails 43 are respectively installed on two sides of the driven pressing plate 41 parallel to the axial direction of the cell to be welded, and the driven guide sleeve 70 is slidably installed on the two slide rails 43. The driven guide bush 70 is movable relative to the driven ram 40 by the first guide bush driving unit 71. Specifically, the driven guide sleeve 70 includes a vertical plate and a base body, the base body is fixedly mounted on the driven pressing plate 41, the vertical plate is fixedly connected with the base body, and the vertical plate is provided with a guide through hole 72. The shape and size of the guide through hole 72 are consistent with the size and shape of the cell to be welded.

In order to facilitate uniform arrangement of the air passages, the linear driving unit 80 employs a linear motion cylinder. When the welding device is used, the acting force of the linear driving unit 80 acting on the end face of the battery core to be welded can be controlled by controlling the air pressure of the linear motion air cylinder. In addition, when the size of the to-be-welded battery cell changes, the whole sealing and welding tool can adapt to the length change of the to-be-welded battery cell through the linear driving unit 80.

On the basis of any of the above embodiments, as shown in fig. 1 and 2, the pressing wheel 30 is rotatably mounted on the rotating arm 31, the rotating arm 31 is connected to the driving end of the rotation driving unit 32, and the rotation driving unit 32 is fixedly mounted on the base 10. The rotary driving unit 32 adopts a rotary cylinder or a rotary motor, and under the action of the rotary driving unit 32, the rotary arm 31 drives the press wheel 30 rotatably mounted thereon to be pressed on the cell to be welded, so that the cell to be welded is prevented from moving in the welding process.

As shown in fig. 3, the embodiment of the utility model provides a seal welding frock still includes riding wheel seat 21, and install in base 10 with adjustable riding wheel seat 21, the both ends of riding wheel 20 rotate with supporting seat 22 respectively and are connected, and supporting seat 22 is connected with adjustable riding wheel seat 21. The riding wheel seat 21 is used for mounting the riding wheel 20, the bottom of the riding wheel seat extends to two sides to form a support lug, a mounting hole for being connected with the base 10 through a bolt is formed in the support lug, and the mounting hole can be a strip-shaped hole so as to be matched with one of a plurality of screw holes formed in the base 10 to realize adjustable connection. The supporting seat 22 is a U-shaped supporting frame with a bottom plate, and of course, the supporting seat 22 may also adopt other supporting structures, and the embodiment of the present invention is not limited in detail.

On the basis of the above embodiment, the top of the idler seat 21 is provided with the accommodating groove 23, and the two supporting seats 22 can be adjustably mounted in the accommodating groove 23 through an adjusting bolt or detachably mounted in the accommodating groove 23 through a bolt. For better supporting, the embodiment of the present invention provides two riding wheel seats 21, wherein four riding wheels 20 installed on two riding wheel seats 21 are arranged in a square array, and a proximity switch 24 is arranged between the two riding wheel seats 21. Of course, the two riding wheels 20 and other groove structures can also effectively support the battery cell to be welded and can drive the battery cell to be welded to rotate.

In one embodiment, as shown in fig. 1, the active guide housing 60 is slidably mounted to the runway 12 by a second guide housing drive unit 61. After the cell to be welded is placed on the riding wheel 20, the driving guide sleeve 60 is moved by the second guide sleeve driving unit 61, and the driven guide sleeve 70 is moved by the first guide sleeve driving unit 71 toward the end of the cell to be welded. It is understood that, in the embodiment of the present invention, the active guiding sleeve 60 can move axially relative to the active ram 50, and can also realize the rotation of the active ram 50 in the active guiding sleeve 60. Similarly, the relative movement of the driven guide sleeve 70 and the driven ram 40 is the same as the relative movement of the driving guide sleeve 60 and the driving ram 50. The first guide sleeve driving unit 71 and the second guide sleeve driving unit 61 may be any one of an air cylinder and an electric push rod.

Wherein, the buffer 100 is installed on the driven pressure plate 41, and the buffer 100 is installed on the outer end of the slide rail 43. Damping is performed at the moving outer end of the driven guide sleeve 70 by means of a damper 100. It should be noted that the outer end refers to an end of the slide rail 43 away from the electric core to be welded. Similarly, dampers 100 are also mounted on the base 10, and the dampers 100 are mounted on both ends of the slide 12 for damping the movement of the second guide housing driving unit 61 and the linear driving unit 80, respectively.

In addition to any of the above embodiments, as shown in fig. 1, the active ram 50 is rotatably mounted to the ram mount 51. Specifically, the ram mount 51 is fixedly mounted on the base 10, and the active ram 50 is rotatably mounted on the ram mount 51.

The seal welding tooling further includes a clutch 91, and the rotary drive mechanism 90 is selectively engageable with the active ram 50 through the clutch 91. After the driving ram 50 and the driven ram 40 clamp the cells to be welded, the rotary driving mechanism 90 is connected to the driving ram 50 through the clutch 91. Under the action of the rotary driving mechanism 90, the driving pressure head 50 rotates, so as to drive the driven pressure head 40 and the battery core to be welded to rotate. In order to treat the position of dress electricity core better axial restriction, initiative pressure head 50 is the same with driven pressure head 40 structure, all set up with treat the cell body of dress electricity core tip adaptation, treat for convenience that it is internal that to weld electric core entering groove, be equipped with guide portion in driven pressure head 40 and the cell body notch department of initiative pressure head 50, can effectively correct the skew of electric core. The driving ram 50 and the driven ram 40 are both copper rams which are provided with annular grooves to reduce the weight of the copper rams.

Specifically, as shown in fig. 1 and 2, the rotary drive mechanism 90 includes a servo motor 92 and a speed reducer 93, and the servo motor 92 is connected to the clutch 91 through the speed reducer 93. A motor shaft of the servo motor 92 is connected with the clutch 91 through a speed reducer 93, and the clutch 91 is installed on the clutch installation seat. When the electric core to be welded is installed in place, the clutch 91 is engaged with the driving ram 50, and the driving ram 50 rotates under the driving of the servo motor 92.

In another embodiment, the driving guide sleeve 60 is fixedly connected to the base 10, and the driving guide sleeve 60 has the same structure as the driven guide sleeve 70 and includes a guide through hole. The end of the active press head 50 is received in the guiding through hole, and the guiding through hole has a space for inserting the electric core to be welded. From this, only can fix a position the welding and wait to adorn electric core with the help of the removal of driven uide bushing 70 and driven pressure head 40 equally, to this, the embodiment of the utility model provides a do not specifically limit.

In yet another embodiment, the active guiding sleeve 60 is a positioning member provided with a tapered hole, and the positioning member is in the shape of a truncated cone or a block, and is fixedly connected with the end of the active ram 50. After the to-be-welded battery core abuts against the end of the driving pressure head 50 along the tapered hole, the linear driving unit 80 is pushed to align the current collecting disc and the aluminum shell to avoid the dislocation of the current collecting disc and the aluminum shell.

In addition, the embodiment of the utility model provides a still provide a seal welding equipment, include as above seal welding frock. One set of seal welding equipment can dispose a plurality of above-mentioned seal welding frock, and when one of them seal welding frock was welding, other seal welding frock was in artifical material loading state to realize seamless joint, improve material loading efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A seal welding tool comprises a base and is characterized by further comprising a driving guide sleeve, a driven guide sleeve, a supporting wheel, a pressing wheel, a driven pressing head and a driving pressing head, wherein the supporting wheel and the driving pressing head are mounted on the base, the pressing wheel is rotatably mounted on the base and is positioned above the supporting wheel, the supporting wheel and the pressing wheel are matched with each other to radially limit the position of an electric core to be welded, the driving guide sleeve is slidably mounted on the base and movably sleeved on the driving pressing head, the driven pressing head is mounted on the driven pressing plate, the driven pressing plate is slidably mounted on the base through a linear driving unit, the driven guide sleeve is slidably mounted on the driven pressing plate and movably sleeved on the driven pressing head, the driven guide sleeve and the driving guide sleeve are coaxially arranged, the driven pressing head and the driving pressing head are matched with each other to axially limit the position of the electric core to be welded, the driving pressure head is connected with the rotary driving mechanism, and the linear driving unit adopts a driving structure capable of controlling the driven pressure head to act on the acting force of the end face of the battery core to be welded.

2. The seal welding tool according to claim 1, wherein a slideway is formed on the base, the driven pressing head is rotatably mounted on a pressing head seat, the pressing head seat is fixedly mounted on the driven pressing plate, the driven pressing plate is provided with a sliding rail, the driven guide sleeve is slidably mounted on the sliding rail through a first guide sleeve driving unit, and a driving end of the linear driving unit is fixedly connected with the driven pressing plate.

3. The seal welding tool according to claim 1 or 2, wherein the linear driving unit is a linear motion cylinder.

4. The seal welding tool according to claim 1 or 2, wherein the pressing wheel is rotatably mounted on a rotating arm, the rotating arm is connected with a driving end of a rotation driving unit, and the rotation driving unit is fixedly mounted on the base.

5. The seal welding tool according to claim 1 or 2, further comprising a supporting roller seat, wherein the supporting roller seat is mounted on the base, two ends of the supporting roller are respectively connected with the supporting seat in a rotating mode, and the supporting seat is connected with the supporting roller seat in an adjustable mode or in a detachable mode.

6. The seal welding tooling of claim 2, wherein the active guide sleeve is slidably mounted to the slide via a second guide sleeve drive unit.

7. The seal welding tooling of claim 1 or 2, wherein the active ram is rotatably mounted to a ram mounting block, the ram mounting block being fixedly connected to the base, the seal welding tooling further comprising a clutch through which the rotary drive mechanism is selectively engageable with the active ram.

8. The seal welding tool according to claim 1 or 2, wherein the active guide sleeve is fixedly connected with the base.

9. The seal welding tool according to claim 1, wherein the active guide sleeve is a positioning piece provided with a tapered hole, and the active guide sleeve and the active pressure head are integrally formed.

10. A seal welding apparatus comprising the seal welding tool according to any one of claims 1 to 9.