A cylindrical battery sealing aluminum sheet welding fixture

Abstract

The present invention relates to the field of battery technology and discloses a cylindrical battery sealed aluminum sheet welding fixture, comprising a box body and a positioning mechanism; a box body positioning hole, wherein the opening of the positioning hole is located on the top surface of the box body and extends along a first direction, and the first direction is perpendicular to the top surface of the box body; the inner diameter of the positioning hole matches the outer diameter of the cylindrical battery, and when the cylindrical battery is placed in the positioning hole, the pole at one end of the cylindrical battery can protrude from the top surface; the positioning mechanism is installed in the box body, and the positioning mechanism can clamp the pole of the cylindrical battery protruding from the top surface to prevent the cylindrical battery from rotating around its own axis; through the arrangement of the positioning hole and the positioning mechanism, the cylindrical battery can be accurately positioned, thereby improving welding accuracy and improving product yield.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a welding fixture for sealing aluminum sheets of cylindrical batteries. Background Art

[0002] In today's society, batteries are widely used in various fields. There are many types of batteries, and cylindrical batteries are one of them.

[0003] In the prior art, when welding cylindrical battery seals to aluminum sheets, manual visual inspection is typically used to determine the orientation, placing the battery in the positioning slot, and then welding. However, this manual visual inspection method can lead to variations in placement orientation, which can easily cause deviations between the planned welding trajectory and the actual welding position, resulting in poor welding.

[0004] Therefore, how to accurately position cylindrical batteries to improve welding accuracy and thus increase product yield has become a technical problem that needs to be urgently solved in this field. Summary of the Invention

[0005] The purpose of the present invention is to provide a cylindrical battery sealed aluminum sheet welding fixture that can accurately position the cylindrical battery, thereby improving welding accuracy and improving product yield.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A cylindrical battery sealed aluminum sheet welding fixture comprises: a box body and a positioning mechanism; wherein the box body has a positioning hole for accommodating the cylindrical battery, the opening of the positioning hole is located on the top surface of the box body and extends along a first direction, the first direction being perpendicular to the top surface of the box body; the inner diameter of the positioning hole matches the outer diameter of the cylindrical battery, and when the cylindrical battery is placed in the positioning hole, the pole of the cylindrical battery at one end away from the bottom of the positioning hole can protrude from the top surface; the positioning mechanism is mounted on the box body, and when the positioning mechanism is in the locking position, it can clamp the pole of the cylindrical battery protruding from the top surface to prevent the cylindrical battery from rotating about its own axis.

[0008] Before welding the sealed aluminum sheet of the cylindrical battery, the cylindrical battery is first placed in the positioning hole to position the cylindrical battery in the first direction; since the pole at one end of the cylindrical battery away from the bottom of the positioning hole can protrude from the top surface, the positioning mechanism is then adjusted to the locking position to cooperate with the pole protruding from the top surface of the cylindrical battery, thereby preventing the cylindrical battery from rotating around its own axis; at this time, the cylindrical battery is fixed relative to the box in all directions; finally, the box together with the cylindrical battery is placed inside the laser welding machine equipment for fixation, and then the sealed aluminum sheet welding can be performed.

[0009] This cylindrical battery sealed aluminum sheet welding fixture can accurately position the cylindrical battery through the setting of positioning holes and positioning mechanisms, thereby improving welding accuracy and increasing product yield.

[0010] Optionally, the positioning mechanism includes a clamping member; the clamping member has a clamping groove. When the clamping member is in the locking position, the clamping member is fixedly connected to the box body, and the clamping groove can clamp the pole protruding from the top surface of the cylindrical battery to prevent the cylindrical battery from rotating around its own axis.

[0011] Optionally, the positioning mechanism also includes a positioning plate; the positioning plate is fixedly connected to the top surface of the box body, the positioning plate is located between the top surface of the box body and the clamping member, and the positioning plate has a positioning groove; the lower surface of the clamping member has a positioning block that cooperates with the positioning groove; when the clamping member is in the locking position, the positioning block is inserted into the positioning groove, and at this time the clamping member can clamp the pole protruding from the top surface of the cylindrical battery.

[0012] Optionally, the positioning mechanism also includes a guide rod; the box body also has a guide hole, the opening of the guide hole is located on the top surface of the box body and extends along the first direction, the guide rod is passed through the guide hole, and can rotate along its own axis; the positioning plate has a through hole for passing the guide rod; the top end of the guide rod is fixedly connected to the lower surface of the clamping member, and the bottom end of the guide rod has a stop block, which is fixedly connected to the bottom end of the guide rod, and the stop block is used to prevent the guide rod from moving out of the guide hole as a whole.

[0013] Optionally, the guide rod includes an upper rod and a lower rod; the interior of the box body also has a limit cylinder with a limit hole on the limit cylinder; the limit cylinder extends along the first direction, and the limit hole is used to pass the lower rod; a spring is provided around the circumference of the lower rod, the upper end of the spring contacts the inner wall of the top of the limit cylinder, and the lower end of the spring contacts the upper surface of the block, and the spring can produce elastic deformation along the first direction; the outer edge of the spring is projected on the top of the limit cylinder to cover the limit hole, and the block is projected on the spring to cover the outer edge of the spring.

[0014] Optionally, the clamping member includes a clamping plate; a clamping groove is provided at an edge of the clamping plate.

[0015] Optionally, the positioning mechanism further includes a boss; the boss is fixedly connected to the upper surface of the clamping plate.

[0016] Optionally, an observation hole is provided on the outer shell of the box body; the observation hole is connected to the positioning hole, and the operator can adjust the position of the cylindrical battery placed in the positioning hole through the observation hole.

[0017] Optionally, a pad is provided in the positioning hole; the top of the pad is used to support the cylindrical battery, and an avoidance hole is provided on the top of the pad, which is used to avoid the pole of the cylindrical battery at one end of the positioning hole.

[0018] Optionally, the bottom surface of the box is fixedly connected to a base plate; the base plate is used to be threadedly connected to the internal base of the laser welding machine; a plurality of first threaded holes are provided on the base plate, and the plurality of first threaded holes are arranged in one-to-one correspondence with the plurality of second threaded holes of the internal base of the welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings and the accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. Among them:

[0020] Figure 1 A schematic diagram of the overall structure of a cylindrical battery sealing aluminum sheet welding fixture provided by an embodiment of the present invention;

[0021] Figure 2 A side view of a cylindrical battery sealing aluminum sheet welding fixture provided by an embodiment of the present invention;

[0022] Figure 3 A top view of the clamping member of the cylindrical battery sealing aluminum sheet welding fixture provided by an embodiment of the present invention when it is in the locking position;

[0023] Figure 4 A top view of the cylindrical battery sealing aluminum sheet welding fixture provided by an embodiment of the present invention when the clamping parts avoid the positioning holes.

[0024] Icons: 1- housing; 2- positioning mechanism; 3- cylindrical battery; 4- positioning hole; 5- top surface; 6- pole; 7- clamping piece; 8- positioning plate; 9- positioning groove; 10- guide rod; 11- stop block; 12- upper rod; 13- limiting cylinder; 14- spring; 15- clamping plate; 16- clamping groove; 17- bolt; 18- boss; 19- observation hole; 20- pad; 21- avoidance hole; 22- pole; 23- bottom plate; 24- first threaded hole. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present invention and is not intended to limit the present invention. Indeed, it will be apparent to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompasses such modifications and variations as come within the scope of the appended claims and their equivalents.

[0026] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] An embodiment of the present invention provides a cylindrical battery sealed aluminum sheet welding fixture, comprising: a box body 1 and a positioning mechanism 2; wherein the box body 1 has a positioning hole 4 for accommodating a cylindrical battery 3, the opening of the positioning hole 4 is located on the top surface 5 of the box body 1 and extends along a first direction, and the first direction is perpendicular to the top surface 5 of the box body 1; the inner diameter of the positioning hole 4 matches the outer diameter of the cylindrical battery 3. When the cylindrical battery 3 is placed in the positioning hole 4, the pole 6 of the cylindrical battery 3 at one end away from the bottom of the positioning hole 4 can protrude from the top surface 5; the positioning mechanism 2 is installed on the box body 1, and when the positioning mechanism 2 is in the locking position, it can clamp the pole 6 of the cylindrical battery 3 protruding from the top surface 5 to prevent the cylindrical battery 3 from rotating around its own axis.

[0028] In this embodiment, before the cylindrical battery 3 is welded with the sealed aluminum sheet, the cylindrical battery 3 is first placed in the positioning hole 4 to position the cylindrical battery 3 in the first direction; since the pole 6 at one end of the cylindrical battery 3 away from the bottom of the positioning hole 4 can protrude from the top surface 5, the positioning mechanism 2 is adjusted to the locking position to cooperate with the pole 6 of the cylindrical battery 3 protruding from the top surface 5, thereby preventing the cylindrical battery 3 from rotating around its own axis; at this time, the cylindrical battery 3 is fixed relative to the box 1 in all directions; finally, the box 1 together with the cylindrical battery 3 is placed in the laser welding machine equipment for fixation, and then the sealed aluminum sheet welding is performed.

[0029] This cylindrical battery sealed aluminum sheet welding fixture can accurately position the cylindrical battery 3 through the setting of the positioning hole 4 and the positioning mechanism 2, thereby improving the welding accuracy and improving the product yield.

[0030] As an optional embodiment, the positioning mechanism 2 includes a clamping member 7; the clamping member 7 has a clamping groove 16. When the clamping member 7 is in the locking position, the clamping member 7 is fixedly connected to the box body 1, and the clamping groove 16 can clamp the pole 6 of the cylindrical battery 3 protruding from the top surface 5 to prevent the cylindrical battery 3 from rotating around its own axis.

[0031] It should be noted that, in addition to the clamping member 7 having the clamping groove 16 mentioned in this embodiment, the clamping member 7 can also be a clamping claw, which can achieve the clamping and loosening of the pole 6 of the cylindrical battery 3 protruding from the top surface 5 by closing and opening the clamping claw. When the clamping claw clamps the pole 6 of the cylindrical battery 3 protruding from the top surface 5, it can prevent the cylindrical battery 3 from rotating around its own axis.

[0032] As an optional embodiment, the positioning mechanism 2 further includes a positioning plate 8; the positioning plate 8 is fixedly connected to the top surface 5 of the box body 1, and the positioning plate 8 is located between the top surface 5 of the box body 1 and the clamping member 7. The positioning plate 8 has a positioning groove 9; the lower surface of the clamping member 7 has a positioning block that cooperates with the positioning groove 9; when the clamping member 7 is in the locking position, the positioning block is engaged with the positioning groove 9, and the clamping member 7 can now clamp the pole protruding from the top surface of the cylindrical battery. The positioning mechanism 2 also includes a guide rod 10; the box body 1 also has a guide hole, the opening of the guide hole is located on the top surface 5 of the box body 1 and extends along the first direction, the guide rod 10 is inserted into the guide hole and can rotate along its own axis; the positioning plate 8 has a through hole for inserting the guide rod 10; the top end of the guide rod 10 is fixedly connected to the lower surface of the clamping member 7, and the bottom end of the guide rod 10 has a stopper 11, which is fixedly connected to the bottom end of the guide rod 10 and is used to prevent the guide rod 10 from moving out of the guide hole as a whole. The guide rod 10 includes an upper rod 12 and a lower rod. The housing 1 further includes a limiting cylinder 13 with a limiting hole. The limiting cylinder 13 extends in a first direction, and the limiting hole is used to pass through the lower rod. A spring 14 is provided around the circumference of the lower rod. The upper end of the spring 14 contacts the inner wall of the top of the limiting cylinder 13, and the lower end of the spring 14 contacts the upper surface of the stopper 11. The spring 14 is capable of elastic deformation in the first direction. The orthographic projection of the outer edge of the spring 14 on the top of the limiting cylinder 13 overlaps the limiting hole, and the orthographic projection of the stopper 11 on the spring 14 overlaps the outer edge of the spring 14. The clamping member 7 includes a clamping plate 15, and a clamping groove 16 is provided at the edge of the clamping plate 15.

[0033] Among them, the positioning plate 8 can be fixedly connected to the top plate of the box body 1 by bolts 17; in addition, the positioning groove 9 can be a trapezoidal groove, and the positioning block can be a trapezoidal block. The cooperation between the trapezoidal block and the trapezoidal groove can make the clamping plate 15 and the positioning plate 8 more firmly connected, thereby further improving the accuracy and stability of positioning.

[0034] In this embodiment, since the outer edge of the spring 14 is projected onto the top of the limiting cylinder 13 and covers the limiting hole, the block 11 is projected onto the spring 14 and covers the outer edge of the spring 14. That is to say, under the action of the limiting hole and the block 11, the spring 14 cannot move out of the limiting cylinder 13 along the first direction, thereby achieving the limiting effect on the spring 14 and further preventing the guide rod 10 from moving out of the guide hole as a whole.

[0035] Specifically, during operation, the operator moves the clamping plate 15 together with the guide rod 10 upward in the first direction, then rotates the clamping plate 15 to avoid the position of the positioning hole 4, and then places the cylindrical battery 3 into the positioning hole 4; then moves the clamping member 7 together with the guide rod 10 downward in the first direction, and at the same time rotates the clamping plate 15 so that the positioning block on the lower surface of the clamping plate 15 is stuck in the positioning groove 9, and the clamping groove 16 at the edge of the clamping plate 15 clamps the pole 6 of the cylindrical battery 3. At this time, the clamping plate 15 is in the locking position, and the cylindrical battery 3 is fixed relative to the box body 1 in all directions; finally, the box body 1 together with the cylindrical battery 3 is placed inside the laser welding machine equipment for fixation, and then the sealed aluminum sheet is welded.

[0036] This setting method has a simple structure, is easy to operate, and can ensure the accuracy of positioning.

[0037] As an optional embodiment, the positioning mechanism 2 further includes a boss 18 ; the boss 18 is fixedly connected to the upper surface of the clamping plate 15 .

[0038] In this embodiment, when the clamping plate 15 needs to be moved together with the guide rod 10 in the first direction, the operator only needs to hold the boss 18 to perform the operation, so that the operator can pick up the clamping plate 15 more conveniently, thereby improving the operating efficiency.

[0039] As an optional embodiment, an observation hole 19 is provided on the outer shell of the box body 1; the observation hole 19 is connected to the positioning hole 4, and the operator can adjust the position of the cylindrical battery 3 placed in the positioning hole 4 through the observation hole 19.

[0040] In this embodiment, when the clamping groove 16 needs to clamp the pole 6 of the cylindrical battery 3, the operator can insert his hand into the observation hole 19 and rotate the cylindrical battery 3 located in the positioning hole 4, thereby achieving more accurate positioning of the cylindrical battery 3.

[0041] As an optional embodiment, a pad 20 is provided in the positioning hole 4; the top of the pad 20 is used to support the cylindrical battery 3, and the top of the pad 20 is provided with an avoidance hole 21, which is used to avoid the pole 22 of the cylindrical battery 3 located at one end in the positioning hole 4.

[0042] In this embodiment, the setting of the avoidance hole 21 can avoid the pole 22 of the cylindrical battery 3 at one end in the positioning hole 4, so that the cylindrical battery 3 is more stable in the positioning hole 4; in addition, the height of the pad 20 can be determined according to the cylindrical batteries 3 of different heights to ensure that the pole 6 at one end of the cylindrical battery 3 away from the bottom of the positioning hole 4 can protrude from the top surface 5, thereby being suitable for cylindrical batteries 3 of different heights.

[0043] As an optional embodiment, the bottom surface of the box body 1 is fixedly connected to a base plate 23; the base plate 23 is used to be threadedly connected to the internal base of the laser welding machine; a plurality of first threaded holes 24 are provided on the base plate 23, and the plurality of first threaded holes 24 are arranged in a one-to-one correspondence with the plurality of second threaded holes of the internal base of the welding machine.

[0044] In this embodiment, after the cylindrical battery 3 is fixed relative to the box body 1 in all directions, the box body 1 together with the cylindrical battery 3 is placed inside the laser welding machine equipment, and each two mutually matching first threaded holes 24 and second threaded holes are threadedly connected by screws to fix the box body 1 to the internal base of the laser welding machine equipment, and finally the sealing aluminum sheet is welded.

[0045] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cylindrical battery sealing aluminum sheet welding fixture, characterized in that: include: Box and positioning mechanism; wherein, The box body has a positioning hole for accommodating cylindrical batteries, the opening of the positioning hole is located on the top surface of the box body and extends along a first direction, and the first direction is perpendicular to the top surface of the box body; The inner diameter of the positioning hole matches the outer diameter of the cylindrical battery. When the cylindrical battery is placed in the positioning hole, the pole of the cylindrical battery away from the bottom of the positioning hole can protrude from the top surface. The positioning mechanism is installed on the box body, and when the positioning mechanism is in the locking position, it can clamp the pole of the cylindrical battery protruding from the top surface to prevent the cylindrical battery from rotating around its own axis; The positioning mechanism includes a clamping member; The clamping member has a clamping groove. When the clamping member is in the locking position, the clamping member is fixedly connected to the box body. The clamping groove can clamp the pole of the cylindrical battery protruding from the top surface to prevent the cylindrical battery from rotating around its own axis. The positioning mechanism also includes a positioning plate; The positioning plate is fixedly connected to the top surface of the box body, and is located between the top surface of the box body and the clamping member. The positioning plate has a positioning groove; the lower surface of the clamping member has a positioning block that cooperates with the positioning groove; When the clamping member is in the locking position, the positioning block is locked in the positioning groove, and the clamping member can clamp the pole of the cylindrical battery protruding from the top surface; The positioning mechanism further includes a guide rod; The box body further has a guide hole, the opening of which is located on the top surface of the box body and extends along the first direction, and the guide rod is inserted into the guide hole and can rotate along its own axis; The positioning plate has a through hole for passing the guide rod; The top end of the guide rod is fixedly connected to the lower surface of the clamping member, and the bottom end of the guide rod has a stopper, which is fixedly connected to the bottom end of the guide rod and is used to prevent the guide rod from moving out of the guide hole as a whole; The guide rod includes an upper rod and a lower rod; The box body further comprises a limiting cylinder inside, and the limiting cylinder comprises a limiting hole; the limiting cylinder extends along the first direction, and the limiting hole is used for passing the lower rod; A spring is provided around the circumference of the lower rod, the upper end of the spring contacts the inner wall of the top of the limiting cylinder, the lower end of the spring contacts the upper surface of the stopper, and the spring is capable of generating elastic deformation along the first direction; The orthographic projection of the outer edge of the spring on the top of the limiting cylinder covers the limiting hole, and the orthographic projection of the stopper on the spring covers the outer edge of the spring.

2. The cylindrical battery sealing aluminum sheet welding fixture according to claim 1, characterized in that: The clamping member includes a clamping plate; The clamping groove is provided at the edge of the clamping plate.

3. The cylindrical battery sealing aluminum sheet welding fixture according to claim 2, characterized in that: The positioning mechanism further includes a boss; The boss is fixedly connected to the upper surface of the clamping plate.

4. The cylindrical battery sealing aluminum sheet welding fixture according to claim 1, characterized in that: An observation hole is provided on the outer shell of the box; The observation hole is communicated with the positioning hole, and an operator can adjust the position of the cylindrical battery placed in the positioning hole through the observation hole.

5. The cylindrical battery sealing aluminum sheet welding fixture according to claim 1, characterized in that: A pad is provided in the positioning hole; The top of the pad is used to support the cylindrical battery. The top of the pad is provided with an avoidance hole, and the avoidance hole is used to avoid the pole of the cylindrical battery located at one end of the positioning hole.

6. The cylindrical battery sealing aluminum sheet welding fixture according to any one of claims 1 to 5, characterized in that: The bottom surface of the box body is fixedly connected with a bottom plate; The bottom plate is used for threaded connection with the inner base of the laser welding machine; The bottom plate is provided with a plurality of first threaded holes, and the plurality of first threaded holes are arranged in a one-to-one correspondence with the plurality of second threaded holes of the inner base of the welding machine.

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