CN211708478U - A special jig for welding battery tabs - Google Patents

Abstract

The utility model relates to the technical field of laser welding, and relates to a special fixture for welding of battery tabs, comprising a fixture base plate and a translation component. Two sliding rails are symmetrically arranged on both sides of the fixture base plate, and the sliding rail is provided with two side sliding components, a translation component. The two ends of the two guide rods are respectively fixed on the upper ends of the two side slide assemblies. The two guide rods are provided with bearing connecting plates. The bearing connecting plates are connected with the two guide rods with two cylinders. The cylinders pass through the pistons. The rod is fixedly connected with a pressure head assembly, a manual valve communicated with the cylinder is arranged on the side wall of the side sliding assembly, and the cylinder is controlled by the manual valve to push the pressure head assembly to move up and down. The technical solution provided by this application is improved by the welding jig for the pole lug. After the improvement, the welding structure of the pole lug is simple and easy to operate, and the indenter assembly is provided with a bearing to prevent the hinge pin from moving up and down, so as to ensure that the indenter clamps the pole lug. Keeping it flat can solve the problem of false welding in the welding tabs and improve the welding quality of the tabs.

Description

A special jig for welding battery tabs

technical field

The utility model belongs to the technical field of laser welding, in particular to a special clamp for welding battery tabs.

Background technique

With the continuous improvement of the laser welding process of the soft package module, the use of the battery tab welding fixture to assist the tab welding has gradually become the main welding method of major manufacturers, but the existing welding process is far from meeting the changing needs of our products. In order to continuously improve the existing laser welding process of soft package modules in mass production, in the process of improvement, since the process always needs to repeat the sample verification, it is more difficult to verify the sample preparation according to the existing equipment, and it is necessary to modify the existing The laser welding machine leads to a long increase in the cost of equipment modification. The existing solution is to prepare samples through welding fixtures and implement small batch sample production. However, the stability of the current welding fixtures is poor, and the problem of jamming often occurs, resulting in tabs. After welding, it is uneven and there is a virtual welding situation.

Utility model content

The utility model mainly solves the problems of high modification cost and long modification time due to the need to repair the laser welding machine equipment for sample preparation and verification of the tab welding process, and at the same time can solve the problem of poor stability of the laser tab welding fixture, resulting in the occurrence of jamming Due to the plug situation, the defect rate of the tabs increases during welding.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a special clamp for welding battery tabs, including a clamp bottom plate, a first side slide assembly and a second side slide assembly, a translation assembly, an indenter assembly, and a clamp. A first sliding rail and a second sliding rail are arranged symmetrically on both sides of the bottom plate, the second sliding rail is provided with a first side sliding component, a second side sliding component is slidably arranged on the first sliding rail, and the first guide rod in the translation component The two ends of the first guide rod and the second guide rod are respectively fixed on the upper ends of the first side slide assembly and the second side slide assembly, and the first guide rail and the second guide rod are parallel in the horizontal direction.

Wherein, the first guide rod and the second guide rod are provided with a bearing connecting plate, the bearing connecting plate is provided with a first air cylinder at the connection with the first guide rod, and a second air cylinder is provided at the connection with the second guide rod, and the third The second cylinder and the first cylinder are respectively connected with a pressure head assembly through the piston rod, and the plane of the pressure head assembly is vertical to the cylinder piston rod; the side wall of the first side slide assembly is provided with a manual valve that communicates with the second cylinder and the first cylinder , through the manual valve to control the second cylinder to push the pressure head assembly to move up and down.

Further, the first guide rod is provided with a first linear bearing, and the second guide rod is provided with a second linear bearing; the second linear bearing and the first linear bearing are provided with a bearing connecting plate, and the bearing connecting plate is connected with the bearing connecting plate. The second cylinder mounting plate is provided with the second cylinder, and the bearing connecting plate is provided with the first cylinder through the first cylinder mounting plate.

Further, the first side sliding assembly includes a sliding connection block, a side plate, and a sliding side plate;

The sliding connecting block is arranged on the first sliding rail, the sliding connecting block is provided with a side plate perpendicular to the sliding connecting block, the waist circle holes are respectively provided on both sides of the upper end of the side plate, and the side plate passes through the waist circle at the upper end of the side plate through bolts. The hole is fixedly connected with the sliding side plate. Adjust the height of the sliding side plate through the waist round hole according to the height change of the pole lug module.

Further, a first reinforcing rib and a second reinforcing rib are arranged at the connection between the side plate and the sliding connection block.

Further, the upper end of the sliding side plate is provided with a first guide rod fixing block and a second guide rod fixing block.

Further, a first sliding fixing block and a second sliding fixing block are respectively provided at both ends of the first guide rod, and a fourth sliding fixing block and a third sliding fixing block are respectively provided at both ends of the second guide rod; The fixed block, the second sliding fixed block, the third sliding fixed block, and the fourth sliding fixed block can make the translation assembly play a reference positioning role when the translation assembly moves left and right on the first guide rod and the second guide rod.

Further, the pressure head assembly includes a pressure head plate, a hinge pin, a bearing, a spring, and a pressure head; the hinge pin is arranged on the pressure head plate through the bearing, and one end of the hinge pin sleeve is provided with a spring to be engaged with the pressure head, and the bearing can be fixed. To prevent the hinge pin from being stuck when moving up and down the indenter plate, to ensure that the indenter remains flat during the process of clamping the tabs, and to prevent the phenomenon of virtual welding during welding of the tabs.

Further, a first reference block and a second reference block are arranged on the bottom plate of the fixture, a second toggle clamp assembly is provided on the opposite side of the first reference block, and a first toggle clamp is provided on the opposite side of the second reference block. components.

Further, the first toggle clamp assembly is fixed on the bottom plate of the clamp through bolts passing through the waist circle holes provided at both ends of the connecting plate, the first bearing seat and the second bearing seat are respectively arranged on the connecting plate, and the first guide rod is inserted through the connecting plate. The third linear bearing is axially fixed on the first bearing seat, and the second guide rod is axially fixed on the second bearing seat through the fourth linear bearing. The other ends of the first guide rod and the second guide rod are provided with a fixing plate, and the toggle clamp is arranged between the first bearing seat and the second bearing seat through the installation block;

Wherein, with the first reference block and the second reference block as the reference positioning, the first toggle clamp assembly and the second toggle clamp assembly can quickly fix the tab module product on the fixture bottom plate, which is convenient for installation and maintenance.

Further, a stop block is provided on the sliding connection block. When the first side slide assembly is translated to the corresponding position of the pole lug module through the sliding connection block, the stop block locks the sliding connection block and the second slide rail through a bolt. tight.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The indenter assembly adopts the hinge pin to be set on the indenter plate through the bearing. One end of the hinge pin is sleeved with a spring to connect with the indenter. The bearing in the indenter assembly structure can prevent the hinge pin from moving up and down on the indenter plate. If there is a stuck situation, ensure that the indenter is kept flat during the process of clamping the tabs, and prevent the phenomenon of virtual welding during welding of the tabs.

2. The utility model realizes the verification effect of the current anti-replicating sample for the new tab welding process by improving the tab welding fixture, and the improved tab welding structure is simple and easy to operate.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of special-purpose jig for welding of tabs of the present utility model;

Fig. 2 is a schematic diagram of the structure of the indenter assembly of a special fixture for tab welding of the present invention;

FIG. 3 is a schematic structural diagram of a special fixture for tab welding of the present invention;

FIG. 4 is a schematic structural diagram of an elbow clamp assembly of a special fixture for pole ear welding of the present invention.

Description of reference numerals: fixture bottom plate 101 , first slide rail 102 , second slide rail 103 , first reference stop 111 , second reference stop 121 , first side slide assembly 13 , sliding connection block 131 , side plate 134 , the first reinforcement rib 132, the second reinforcement rib 133, the stop block 135, the sliding side plate 136, the manual valve 137, the waist hole 138, the first guide rod fixing block 1391, the second guide rod fixing block 1392, the second Side slide assembly 14, translation assembly 15, first guide rod 151, second guide rod 152, first linear bearing 154, second linear bearing 153, bearing connecting plate 155, first cylinder mounting plate 156, second cylinder mounting Plate 157, second cylinder 158, first cylinder 159, first sliding fixing block 1511, second sliding fixing block 1512, third sliding fixing block 1521, fourth sliding fixing block 1522, indenter assembly 16, indenter plate 161 , hinge pin 162, bearing 163, spring 164, pressure head 165, first toggle clamp assembly 17, second toggle clamp assembly 18, connecting plate 171, fixing plate 172, first bearing seat 1731, second bearing seat 1741, first A guide rod 1733 , a second guide rod 1743 , a third linear bearing 1732 , a fourth linear bearing 1742 , a fixed block 175 , a mounting block 176 , and a toggle clamp 177 .

Detailed ways

In order to facilitate the understanding of the present utility model, the present utility model will be more fully described below with reference to the related drawings. The preferred embodiments of the present utility model are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure will be provided.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The terms "first", "second" and the like in the claims, description and drawings of the present invention are used to distinguish different objects, rather than to describe a specific order.

As shown in FIG. 1 , the present utility model provides a technical solution: including a clamp bottom plate 101 , a first side slide assembly 13 , a second side slide assembly 14 , and a translation assembly 15 ;

A first slide rail 102 and a second slide rail 103 are symmetrically arranged on both sides of the fixture bottom plate 101 , the second slide rail 103 is provided with a first side slide assembly 13 , the first slide rail 102 is provided with a second side slide assembly 14 , and the translation assembly The two ends of the first guide rod 151 and the second guide rod 152 in 15 are respectively fixed on the upper ends of the first side slide assembly 13 and the second side slide assembly 14, and the first guide rod 151 and the second guide rod 152 are in the horizontal direction. Parallel; the first guide rod 151 and the second guide rod 152 are respectively movably connected with the bearing connecting plate 155 , the bearing connecting plate 155 is connected with the first guide rod 151 and is provided with a first cylinder 159 , which is connected with the second guide rod 152 . A second air cylinder 158 is provided; the second air cylinder 158 and the first air cylinder 159 are respectively fixedly connected to both ends of the pressure head assembly 16 through the piston rod; Manual valve 137 connected to cylinder 159;

The second air cylinder 158 and the first air cylinder 159 are controlled by the manual valve 137 to push the ram assembly 16 to move up and down.

Further, the first guide rod 151 is provided with a first linear bearing 154, and the second guide rod 152 is provided with a second linear bearing 153; the second linear bearing 153 and the first linear bearing 154 are provided with a bearing connecting plate 155, The bearing connecting plate 155 is provided with the second cylinder 158 through the second cylinder mounting plate 157, and the bearing connecting plate 155 is provided with the first cylinder 159 through the first cylinder mounting plate 156, and pushes the bearing connecting plate 155 to make the translation assembly 15 pass through the second cylinder 159. The linear bearing 153 and the first linear bearing 154 move horizontally on the first guide rod 151 and the second guide rod 152 , and the stroke of the second cylinder 158 and the first cylinder 159 is 125 mm.

Further, the first side sliding assembly 13 includes a sliding connecting block 131, a side plate 134, and a sliding side plate 136;

The sliding connecting block 131 is arranged on the first sliding rail 102, the sliding connecting block 131 is provided with a side plate 134 perpendicular to the sliding connecting block 131, the upper end of the side plate 134 is respectively provided with a waist circle hole 138 on both sides, and the side plate 134 is screwed. The bolt passes through the waist hole 138 at the upper end of the side plate 134 and is fixedly connected to the sliding side plate 136, and the height of the sliding side plate 136 is adjusted through the waist hole 138 according to the height change of the pole lug module. The sliding assembly 13 has the same structure and function, and will not be described in detail here.

Further, a first reinforcing rib 132 and a second reinforcing rib 133 are provided at the connection between the side plate 134 and the sliding connection block 131 .

Further, the upper end of the sliding side plate 136 is provided with a first guide rod fixing block 1391 and a second guide rod fixing block 1392 .

Further, one end of the first guide rod 151 is provided with a first sliding fixing block 1511, the other end of the first guide rod 151 is provided with a second sliding fixing block 1512, and one end of the second guide rod 152 is provided with a fourth sliding fixing block 1522, The other end of the second guide rod 152 is provided with a third sliding fixing block 1521; The first guide rod 151 and the second guide rod 152 play the role of reference positioning when they move up and down horizontally.

Further, a stopper block 135 is provided on the sliding connection block 131. When the first side slide assembly 13 is translated to the corresponding position of the pole lug module through the sliding connection block 131, the stopper block 135 connects the sliding connection block 131 with the bolt through a bolt. The second slide rail 103 is fixed and locked.

As shown in FIG. 2 and FIG. 3 , the pressure head assembly 16 includes a pressure head plate 161, a hinge pin 162, a bearing 163, a spring 164, and a pressure head 165;

The hinge pin 162 is set on the indenter plate 161 through the bearing 163 , and one end of the hinge pin 162 is sleeved with a spring 164 to be fixedly engaged with the indenter 165 . The bearing 163 can prevent the hinge pin 162 from moving up and down on the indenter plate 161 from jamming. In the dead condition, ensure that the indenter 165 is kept flat during the process of clamping the tabs, so as to prevent the phenomenon of virtual welding during welding of the tabs.

As shown in FIG. 4 , a first reference block 111 and a second reference block 121 are provided on the fixture bottom plate 101 , and a first toggle clamp assembly 17 is provided on the opposite side of the second reference block 121 , and the first reference block is connected to the first reference block 121 . 111 is provided with a second toggle clamp assembly 18 on the opposite side; the first reference block 111 and the second reference block 121 serve as the reference limit for the adjacent sides of the pole lug module product. The two toggle clamp assemblies 18 can be adjusted and fixed according to different specifications of the tab modules.

Further, the first toggle clamp assembly 17 is fixed on the clamp bottom plate 101 by bolts passing through the waist holes provided at both ends of the connecting plate 171 , and the first bearing seat 1731 and the second bearing seat 1741 are respectively arranged on the connecting plate 171 , the first guide rod 1733 is axially fixed on the first bearing seat 1731 through the third linear bearing 1732, and the second guide rod 1743 is axially fixed on the second bearing seat 1741 through the fourth linear bearing 1742; the first guide rod 1733 One end of the first guide rod 1733 and the second guide rod 1743 is provided with a fixed stopper 175, the other end of the first guide rod 1733 and the second guide rod 1743 is provided with a fixed plate 172, and the toggle clamp 177 is set on the first bearing seat 1731, the first bearing seat 1731, the first bearing block 176 through the mounting block 176. Between the two bearing seats 1741; with the first reference block 111 and the second reference block 121 as reference positioning, the first toggle clamp assembly 17 and the second toggle clamp assembly 18 can quickly fix the tab module product on the fixture bottom plate Above 101 , installation and maintenance are convenient, and the second toggle clamp assembly 18 and the first toggle clamp assembly 17 have the same structure and function, and will not be described in detail here.

Working process: When preparing the tab welding of the soft pack battery module, manually put the product into the fixture bottom plate 101, using the first reference block 111 and the second reference block 121 as the positioning reference, the second reference block 121 A first toggle clamp assembly 17 is provided on the opposite side, and a second toggle clamp assembly 18 is provided on the opposite side of the first reference block 111. Push the toggle clamp 177 to position and fix the module pole ear, and push the sliding side plate 131. , and then move the translation assembly 15 horizontally through the second linear bearing 153, through the first linear bearing 154, on the first guide rod 151 and the second guide rod 152 to the corresponding position of the pole lug welding of the module, and the indenter assembly 16 There is an indenter 165 on the top that is aligned with the corresponding position of the product pole ear, and the manual valve 137 is moved downward. At this time, the piston rods of the second air cylinder 158 and the first air cylinder 159 are respectively stretched downward, so that the indenter assembly 16 is provided with the corresponding position. The indenter 165 is lowered to compress the tabs, and laser welding of the tabs is started. After the welding is completed, the manual valve 137 is moved upward, and the piston rods of the second air cylinder 158 and the first air cylinder 159 are respectively retracted upward to drive the indenter assembly 16 to move upwards. At this time, the indenter 165 releases the tabs, pulls the elbow clamp 177, and releases the soft-pack battery module from its position, and the module is taken out.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features thereof can be equivalently replaced. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A special clamp for welding battery tabs, characterized in that it comprises a clamp bottom plate (101), a first side slide assembly (13), a second side slide assembly (14), a translation assembly (15), an indenter assembly ( 16); A first slide rail (102) and a second slide rail (103) are symmetrically arranged on both sides of the fixture bottom plate (101), and a first side slide assembly (13) is slidably arranged on the second slide rail (103). A second side slide assembly (14) is slidably arranged on the (102), and both ends of the first guide rod (151) and the second guide rod (152) in the translation assembly (15) are respectively fixed on the first side slide assembly ( 13) and the upper end of the second side slide assembly (14), the first guide rod (151) and the second guide rod (152) are parallel in the horizontal direction; the first guide rod (151) and the second guide rod (152) are respectively Actively connected with the bearing connecting plate (155), a first cylinder (159) is arranged on the bearing connecting plate (155) at the connection with the first guide rod (151), and a second air cylinder (159) is arranged at the connection with the second guide rod (152). Air cylinder (158); the second air cylinder (158) and the first air cylinder (159) are respectively fixedly connected to both ends of the pressure head assembly (16) through the piston rod; A manual valve (137) communicating with the second cylinder (158) and the first cylinder (159); Wherein, the second air cylinder (158) and the first air cylinder (159) are controlled by the manual valve (137) to push the ram assembly (16) to move up and down. 2. The special jig for welding battery tabs according to claim 1, wherein the indenter assembly (16) comprises an indenter plate (161), a hinge pin (162), a bearing (163), and a spring (164) , indenter (165); Wherein, the hinge pin (162) is arranged on the pressure head plate (161) through the bearing (163), the hinge pin (162) is sleeved with a spring (164) and one end is fixedly engaged with the pressure head (165), and the bearing (163) It can prevent the hinge pin (162) from being stuck when the indenter plate (161) moves up and down, ensure that the indenter (165) is kept flat during the process of clamping the pole lug, and prevent the phenomenon of virtual welding during welding of the pole lug. 3. The special jig for welding battery tabs according to claim 1, wherein a first linear bearing (154) is provided on the first guide rod (151), and a first linear bearing (154) is provided on the second guide rod (152) Two linear bearings (153); a bearing connecting plate (155) is provided on the second linear bearing (153) and the first linear bearing (154), and the bearing connecting plate (155) is arranged with the second cylinder mounting plate (157) There is a second cylinder (158), and the bearing connecting plate (155) is provided with a first cylinder (159) through the first cylinder mounting plate (156). 4. The special jig for welding battery tabs according to claim 1, wherein the first side sliding assembly (13) comprises a sliding connection block (131), a side plate (134), and a sliding side plate (136); The sliding connecting block (131) is arranged on the first sliding rail (102), the sliding connecting block (131) is provided with a side plate (134) perpendicular to the sliding connecting block (131), and the upper end of the side plate (134) is provided with two side plates (134). The sides are respectively provided with waist round holes (138), and the side plate (134) is fixedly connected with the sliding side plate (136) through the upper waist round hole (138) of the side plate (134) through bolts, according to the height of the pole lug module The height of the sliding side plate (136) is adjusted through the waist hole (138). 5. The special jig for welding battery tabs according to claim 4, wherein a first reinforcing rib (132) and a second reinforcing rib (132) and a second reinforcing rib ( 133). 6 . The special fixture for welding battery tabs according to claim 4 , wherein the upper end of the sliding side plate ( 136 ) is provided with a first guide rod fixing block ( 1391 ) and a second guide rod fixing block ( 1392 ). 7 . 7. The special jig for welding battery tabs according to claim 2, wherein a first sliding fixing block (1511) is provided at one end of the first guide rod (151), and the other end of the first guide rod (151) is provided with a first sliding fixing block (1511). There is a second sliding fixing block (1512), one end of the second guide rod (152) is provided with a fourth sliding fixing block (1522), and the other end of the second guide rod (152) is provided with a third sliding fixing block (1521); Wherein, the first sliding fixing block (1511), the second sliding fixing block (1512), the third sliding fixing block (1521), and the fourth sliding fixing block (1522) can make the translation assembly (15) move on the first guide rod ( 151), the second guide rod (152) plays a reference positioning role when it translates up and down. 8 . The special clamp for welding battery tabs according to claim 1 , wherein a first reference block ( 111 ) and a second reference block ( 121 ) are arranged on the bottom plate ( 101 ) of the clamp, and the second reference block ( 121 ). A first toggle clamp assembly (17) is provided on the opposite side of the block (121), and a second toggle clamp assembly (18) is provided on the opposite side of the first reference block (111); Wherein, the first reference stopper (111) and the second reference stopper (121) serve as reference limits on the adjacent two sides of the pole lug module product, and the first toggle clamp assembly (17) and the second toggle clamp assembly (18) It can be adjusted and fixed according to different specifications of the tab modules. 9. The special clamp for welding battery tabs according to claim 8, wherein the first toggle clamp assembly (17) is fixed on the clamp bottom plate ( 101), the first bearing seat (1731) and the second bearing seat (1741) are respectively arranged on the connecting plate (171), and the first guide rod (1733) is axially fixed on the third linear bearing (1732) through the third linear bearing (1732). The first bearing seat (1731), the second guide rod (1743) are axially fixed on the second bearing seat (1741) through the fourth linear bearing (1742); the first guide rod (1733) and the second guide rod (1743) ) is provided with a fixed stopper (175) at one end, a fixing plate (172) is provided at the other end of the first guide rod (1733) and the second guide rod (1743), and the toggle clamp (177) is provided with the first guide rod (176) through the mounting block (176). between a bearing seat (1731) and a second bearing seat (1741); Wherein, with the first reference block (111) and the second reference block (121) as reference positioning, the first toggle clamp assembly (17) and the second toggle clamp assembly (18) can quickly fix the tab module product On the fixture bottom plate (101), installation and maintenance are convenient. 10. The special jig for welding battery tabs according to claim 2, wherein a stopper block (135) is provided on the sliding connection block (131); Wherein, when the first side sliding assembly (13) is translated to the corresponding position of the tab module through the sliding connection block (131), the stopper block (135) connects the sliding connection block (131) with the second sliding rail (103) through a bolt ) is securely locked.

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