Collector plate welding pressure head

Abstract

The utility model discloses a collector plate welding pressure head which comprises a pressure head body used for pressing a collector plate on a battery cell; the adsorption mechanism is arranged in the middle of the pressure head body and is used for adsorbing a flow collecting disc; the calibration mechanisms are arranged on the two sides of the pressing head body and used for adjusting the position of the flow collecting disc. When the pressure head is used, the pressure head body is used for bearing a current collecting disc on a current collecting disc conveying mechanism and picking up the current collecting disc through the adsorption mechanism arranged on the pressure head body, then the calibration mechanism arranged on the pressure head body relatively operates to adjust the position of the current collecting disc, and finally the pressure head body drives the current collecting disc to be in contact with the end part of a battery cell for subsequent welding. And the requirements of accurate pressing and concentricity keeping when the collector plate is clamped are met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core welding pressure heads, in particular to a collecting plate welding pressure head. Background Art

[0002] The battery manufacturing process involves multiple complex and delicate steps. With the rapid development of the power battery industry, the market has placed higher demands on battery production efficiency and quality standards, especially in the critical step of pressing and welding the collector plate to the top of the battery cell.

[0003] The existing welding pressure head design can only achieve simple compression between the collector plate and the battery cell. However, when the outer diameter of the collector plate is smaller than the diameter of the battery cell, this design cannot meet the requirements of clamping the collector plate for precise compression and maintaining concentricity. This not only affects the quality and consistency of the product, but also increases production costs and the difficulty of quality control. Therefore, a collector plate welding pressure head is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a current collecting plate welding pressure head to address the current difficulty in ensuring that the battery cell and the current collecting plate always maintain an accurate concentric state due to the lack of an effective positioning and adjustment mechanism during the pressing process of the battery cell and the current collecting plate.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a collecting plate welding pressure head, comprising:

[0006] The pressing head body is used to press the collector plate onto the battery cell;

[0007] An adsorption mechanism is provided on the pressure head body and is used to adsorb the collecting plate;

[0008] The calibration mechanism is arranged on both sides of the pressure head body and is used to adjust the position of the collecting plate.

[0009] Furthermore, the calibration mechanism includes a pair of calibration jaws and a drive unit;

[0010] The correction jaws are arranged relative to each other;

[0011] The correction clamp is arranged at the output end of the driving unit, and the driving unit is used to drive the correction clamp to move relatively so as to contact the collecting plate and adjust the position of the collecting plate.

[0012] Furthermore, a contact member is provided on the opposite side of the correction clamping jaw;

[0013] The side of the contact piece close to the current collecting plate is provided with an arc-shaped edge adapted to the current collecting plate.

[0014] Furthermore, the contact members are two sets of interference teeth arranged in parallel on the correction jaws;

[0015] The arcuate edge is provided at the end of the abutting tooth;

[0016] A flexible layer is provided on the arc-shaped edge of the contact piece.

[0017] Furthermore, the adsorption mechanism includes a suction cup and a negative pressure airway;

[0018] The suction cup is arranged at the center of the pressure head body to contact the collecting plate;

[0019] The negative pressure air channel is communicated with the suction cup and is used for generating negative pressure to adsorb the collecting plate.

[0020] Furthermore, the adsorption mechanism includes a suction cup and a negative pressure airway;

[0021] The number of the suction cups is two or more, and the negative pressure airway is connected to the suction cups;

[0022] The suction cups are distributed around the circumference of the pressure head body;

[0023] A positioning pin is provided at the center of the pressure head body.

[0024] Furthermore, the adsorption mechanism and the calibration mechanism operate alternately;

[0025] The correction clamp blocks the negative pressure airway when the correction clamp is in relative motion, so as to reduce the suction force of the suction cup.

[0026] Furthermore, it also includes a gas supply mechanism, which is provided on the pressure head body and is used to provide shielding gas during the welding process;

[0027] The air supply mechanism includes an air outlet groove, a clearance hole is provided in the pressure head body, and the air outlet groove is arranged on the inner wall of the clearance hole;

[0028] An air supply pipe is provided on the pressure head body and is communicated with the air outlet groove.

[0029] Furthermore, the air supply mechanism further includes a reflux portion, which is provided on the pressure head body;

[0030] The reflux portion is communicated with the air outlet groove and is used for sucking smoke and dust generated during the welding process.

[0031] Furthermore, the pressure head body is provided with a placement portion for placing the collecting plate;

[0032] The placement portion includes a plurality of guide plates arranged on the pressure head body;

[0033] The opposite sides of the plurality of guide plates form a bearing space for placing the collecting plate:

[0034] Connecting portions for inserting contacts are provided on both sides of the bearing space.

[0035] The beneficial effects of the present invention are as follows:

[0036] The utility model, when in use, the pressure head body is used to receive the current collecting disc on the current collecting disc conveying mechanism, and pick up the current collecting disc through the adsorption mechanism arranged thereon, and then the calibration mechanism arranged on the pressure head body is relatively operated to adjust the position of the current collecting disc, and finally the pressure head body drives the current collecting disc to contact with the end of the battery cell for subsequent welding, thereby meeting the requirements of precise pressing and maintaining concentricity when clamping the current collecting disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the structure of the utility model;

[0038] Figure 2 It is a three-dimensional schematic diagram of the utility model;

[0039] Figure 3 This is a back view of the structure of the utility model;

[0040] Figure 4 This is a side structural sectional view of the utility model;

[0041] Figure 5 This is a structural diagram of another embodiment of the present invention.

[0042] In the picture:

[0043] 1. Press head body; 11. Clearance hole; 12. Placement part; 121. Guide plate;

[0044] 2. Adsorption mechanism; 21. Suction cup; 22. Negative pressure airway;

[0045] 3. Calibration mechanism; 31. Calibration jaw; 311. Contact member; 32. Drive unit;

[0046] 4. Air supply mechanism; 41. Air outlet slot; 42. Air supply pipe. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] See also Figure 1-5The utility model discloses a current collecting plate welding pressure head, comprising:

[0049] The pressing head body 1 is used to press the collecting plate onto the battery cell;

[0050] The adsorption mechanism 2 is provided on the pressure head body 1 and is used to adsorb the collecting plate;

[0051] The calibration mechanism 3 is provided on both sides of the pressure head body 1 and is used to adjust the position of the collecting plate.

[0052] When the present application is in use, the pressure head body 1 is used to receive the current collecting plate on the current collecting plate conveying mechanism, and pick up the current collecting plate through the adsorption mechanism 2 arranged thereon, and then the calibration mechanism 3 arranged on the pressure head body 1 adjusts the position of the current collecting plate, and the pressure head body 1 drives the current collecting plate to contact the end of the battery cell for subsequent welding.

[0053] Specifically, in this embodiment, the calibration mechanism 3 includes a pair of calibration jaws 31 and a driving unit 32;

[0054] The correction jaws 31 are arranged opposite to each other;

[0055] The correction jaw 31 is disposed at an output end of the driving unit 32 . The driving unit 32 is used to drive the correction jaw 31 to move relatively to contact the collecting plate and adjust its position.

[0056] Through the above-mentioned structural setting, the driving unit 32 drives the two correction jaws 31 to run at a fixed stroke. During the relative movement of the correction jaws 31, they can squeeze the adsorbed collecting plate until it is in a predetermined position. It should be noted that when the collecting plate is in the predetermined position, the collecting plate, the adsorption mechanism 2 and the axis of the battery cell are in the same straight line.

[0057] like Figure 1 and 2 As shown, a contact member 311 is provided on the opposite side of the correction clamping jaw 31;

[0058] The contact member 311 is provided with an arc-shaped edge on the side close to the collecting plate, which is adapted to the collecting plate;

[0059] A flexible layer is provided on the arc-shaped edge of the contact member 311 .

[0060] Through the above-mentioned mechanism setting, the arc edge on the contact piece 311 is adapted to the outer diameter of the collecting plate, which can play a calibration effect when clamping the collecting plate. At the same time, the setting of the flexible layer can improve the protection effect of the collecting plate, avoiding damage to the collecting plate during the clamping and calibration process.

[0061] Specifically, such as Figure 5 As shown, in another embodiment, the number of the pressing head bodies 1 is multiple groups, and the multiple groups of pressing head bodies 1 are arranged in parallel to synchronously pick up multiple collecting plates and press them onto corresponding battery cells;

[0062] In the present application, the contact members 311 are two sets of interfering teeth arranged in parallel on the correction clamping jaws 31;

[0063] The arc edge is arranged at the end of the interference tooth.

[0064] In another embodiment, the contact member 311 is a contact piece disposed on the correction clamping jaw 31 , and the arc-shaped edges are disposed on two opposite contact sides to correspond to the current collecting plate.

[0065] It should be noted that the adsorption mechanism 2 includes a suction cup 21 and a negative pressure airway 22;

[0066] The suction cup 21 is arranged at the center of the pressure head body 1 to contact the collecting plate;

[0067] The negative pressure air channel 22 is communicated with the suction cup 21 and is used to generate negative pressure to adsorb the collecting plate.

[0068] In another preferred embodiment, Figure 5 As shown, the adsorption mechanism 2 includes a suction cup 21 and a negative pressure airway 22;

[0069] The number of the suction cups 21 is two or more, and the negative pressure airway 22 is connected to the suction cups 21;

[0070] The suction cups 21 are distributed around the circumference of the pressure head body 1;

[0071] A positioning pin 5 is provided at the center of the press head body 1 .

[0072] The above embodiment is for a current collecting plate with a through hole in the center. The positioning pin 5 provided at the center of the pressure head body 1 can be used to perform preliminary positioning of the current collecting plate, thereby preventing mistakes, and the suction cup 21 is relatively provided on the circumference of the pressure head body 1 for adsorbing the current collecting plate. After the current collecting plate is initially positioned, the correction jaws 31 move relatively to contact the current collecting plate and adjust its position.

[0073] In one embodiment, the adsorption mechanism 2 and the calibration mechanism 3 operate alternately;

[0074] When the correction clamping jaws 31 move relative to each other, the negative pressure air passage 22 is blocked to reduce the suction force of the suction cup 21 .

[0075] In the above embodiment, after the adsorption mechanism 2 adsorbs the collecting plate, the correction jaw 31 can close the negative pressure airway 22 when it moves relative to the suction cup 21, so that the suction force is lost, thereby facilitating the correction jaw 31 to adjust the position of the collecting plate;

[0076] In another preferred embodiment, after the adsorption mechanism 2 adsorbs the collecting plate, the correction clamp 31 can block part of the negative pressure airway 22 during relative operation, reduce the suction force of the suction cup 21, and adjust the position of the collecting plate through the correction clamp 31 while maintaining partial suction to prevent the collecting plate from falling.

[0077] After the correction jaws 31 are relatively moved into position, the negative pressure air channel 22 is activated or the negative pressure is increased, so that the adsorption mechanism 2 adsorbs the collecting plate. Finally, the correction jaws 31 are opened to alternately fix the collecting plate.

[0078] It should be noted that a gas supply mechanism 4 is further included, which is arranged on the pressure head body 1 to provide protective gas during the welding process.

[0079] Specifically, the air supply mechanism 4 includes an air outlet groove 41, a clearance hole 11 is provided in the pressure head body 1, and the air outlet groove 41 is provided on the inner wall of the clearance hole 11;

[0080] The air supply pipe 42 is provided on the pressure head body 1 and is communicated with the air outlet groove 41 .

[0081] Furthermore, the air supply mechanism 4 further includes a reflux portion, which is provided on the pressure head body 1;

[0082] The reflux portion is communicated with the gas outlet slot 41 for sucking smoke generated during the welding process.

[0083] Finally, it should be noted that the pressure head body 1 is provided with a placement portion 12 for placing the collecting plate;

[0084] The placement portion 12 includes a plurality of guide plates 121 provided on the press head body 1;

[0085] The opposite sides of the multiple guide plates 121 form a bearing space for placing the collecting disc:

[0086] Connecting portions for inserting the contact members 311 are provided on both sides of the bearing space.

[0087] The above-mentioned bearing space can be used to place the collecting plate and roughly fix the position of the collecting plate to facilitate subsequent correction of the position of the collecting plate.

[0088] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0089] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0090] In addition, "plurality" means two or more.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A current collecting plate welding head, characterized in that: include: The pressing head body (1) is used for pressing the collecting plate onto the battery cell; An adsorption mechanism (2) is provided on the pressure head body (1) and is used for adsorbing the collecting plate; The calibration mechanism (3) is arranged on both sides of the pressure head body (1) and is used to adjust the position of the collecting plate.

2. The current collecting plate welding head according to claim 1, characterized in that: The calibration mechanism (3) comprises a pair of calibration clamps (31) and a drive unit (32); The correction clamping jaws (31) are arranged relative to each other; The correction clamp (31) is arranged at the output end of the drive unit (32), and the drive unit (32) is used to drive the correction clamp (31) to move relatively so as to contact the collecting plate and adjust its position.

3. The current collecting plate welding head according to claim 2, characterized in that: A contact piece (311) is provided on the opposite side of the correction clamping jaw (31); The contact piece (311) is provided with an arc-shaped edge on a side close to the current collecting disk, which is adapted to the current collecting disk.

4. The current collecting plate welding head according to claim 3, characterized in that: The contact members (311) are two sets of contact teeth arranged in parallel on the correction clamping jaws (31); The arcuate edge is provided at the end of the abutting tooth; A flexible layer is provided on the arc-shaped edge of the contact member (311).

5. The current collecting plate welding head according to claim 3, characterized in that: The adsorption mechanism (2) comprises a suction cup (21) and a negative pressure airway (22); The suction cup (21) is arranged at the center of the pressure head body (1) and is used for contacting the current collecting plate; The negative pressure air channel (22) is in communication with the suction cup (21) and is used to generate negative pressure to adsorb the collecting cup.

6. The current collecting plate welding head according to claim 3, characterized in that: The adsorption mechanism (2) comprises a suction cup (21) and a negative pressure airway (22); The number of the suction cups (21) is at least two groups, and the negative pressure airway (22) is in communication with the suction cups (21); The suction cups (21) are distributed in the circumferential direction of the pressure head body (1); A positioning pin (5) is provided at the center of the pressure head body (1).

7. A current collecting plate welding head according to claim 5 or 6, characterized in that: The adsorption mechanism (2) and the calibration mechanism (3) operate alternately; The correction clamping claw (31) blocks the negative pressure airway (22) during relative operation to reduce the suction force of the suction cup (21).

8. The current collecting plate welding head according to claim 1, characterized in that: It also includes a gas supply mechanism (4), which is arranged on the pressure head body (1) and is used to provide protective gas during the welding process; The air supply mechanism (4) includes an air outlet groove (41), a clearance hole (11) is provided in the pressure head body (1), and the air outlet groove (41) is arranged on the inner wall of the clearance hole (11); An air supply pipe (42), the air supply pipe (42) is arranged on the pressure head body (1), and the air supply pipe (42) is communicated with the air outlet groove (41).

9. The current collecting plate welding head according to claim 8, characterized in that: The air supply mechanism (4) further includes a reflux portion, which is arranged on the pressure head body (1); The reflux portion is in communication with the gas outlet groove (41) and is used for sucking smoke generated during the welding process.

10. The current collecting plate welding head according to claim 2, characterized in that: The pressure head body (1) is provided with a placement portion (12) for placing a current collecting plate; The placement portion (12) includes a plurality of guide plates (121) arranged on the pressure head body (1); The opposite sides of the plurality of guide plates (121) form a bearing space for arranging the collecting plate. Connecting portions for inserting the contact piece (311) are provided on both sides of the bearing space.

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