Stirring welding guide device capable of adjusting guide direction based on welding path

Abstract

The utility model discloses a stirring welding guide device capable of adjusting a guide direction based on a welding path. The stirring welding guide device comprises a stirring welding head, a shaft shoulder and a jacket which are coaxially arranged from inside to outside, the clamping sleeve is provided with a welding guide part adjacent to the shaft shoulder, the welding guide part can rotate around the shaft shoulder through the clamping sleeve, and on the welding advancing path, the welding guide part rotates to the position in front of the shaft shoulder. The positioning driving unit is in driving fit with the clamping sleeve, the positioning component is in positioning fit with the clamping sleeve, the positioning driving unit drives the clamping sleeve to rotate, and the positioning component positions the clamping sleeve to be fixed relative to the shaft shoulder. The position of the welding guide part can be automatically adjusted around the shaft shoulder through the clamping sleeve, so that the flexibility and the convenience of welding guide steering adjustment are improved, and the phenomena of bulge and tension crack in the welding process of a workpiece are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of stirring welding, and in particular relates to a stirring welding guide device for adjusting a guide orientation based on a welding path. Background Art

[0002] The liquid cooling plate of the battery pack of new energy vehicles has a high cost and is connected to the frame by a stirring welding process. The following risks exist in the process, which may cause the liquid cooling plate to crack and be difficult to repair, resulting in product scrapping: 1. Risk of uneven grinding of the side beam: The grinding of the four corners of the side beam cannot ensure consistency, and the contact surface between the liquid cooling plate and the side beam is uneven. During the welding process, the welding needle will drag the liquid cooling plate, causing the liquid cooling plate to crack; 2. Risk of deformation of the liquid cooling plate itself: The incoming materials of the liquid cooling plate are different, the weld position is bent and deformed, and the weld position is raised, causing cracking; 3. Risk of assembly offset between the liquid cooling plate and the frame: When employees assemble the liquid cooling plate and the frame, if the single-side gap is too small and there is insufficient space margin during welding, the liquid cooling plate will be squeezed, bulged, and cracked; 4. Risk of occasional failure of equipment and processes: The spindle angle is offset, and the welding needle and bushing are worn, resulting in cracking of the liquid cooling plate. In the prior art, a guide pressing structure is also added to the shoulder, but it needs to be manually adjusted when encountering the corner of the workpiece, and the operation convenience and flexibility are poor, which also reduces the welding efficiency to a certain extent. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a stirring welding guide device for adjusting the guide orientation based on the welding path. The welding guide portion can be automatically adjusted around the shaft shoulder through a sleeve, thereby improving the flexibility and convenience of the welding guide steering adjustment and eliminating the bulge and cracking of the workpiece during welding.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a stirring welding guide device for adjusting the guide orientation based on the welding path, comprising a stirring welding head, a shaft shoulder and a sleeve coaxially arranged from the inside to the outside; the sleeve is provided with a welding guide portion adjacent to the shaft shoulder, and the welding guide portion can rotate around the shaft shoulder through the sleeve, and on the welding forward path, the welding guide portion rotates to a position in front of the shaft shoulder.

[0005] Furthermore, it comprises a positioning drive unit matched with the driving of the jacket and a positioning component matched with the positioning, the positioning drive unit drives the jacket to rotate, and the positioning component positions the jacket to be fixed relative to the shaft shoulder.

[0006] Furthermore, the positioning drive unit is a servo gear transmission mechanism driven by the sleeve gear transmission, and the positioning component is a micro-brake that cooperates with the gear shaft of the servo gear transmission mechanism for braking.

[0007] Furthermore, it comprises an elastic guide connecting piece corresponding to the welding guide part, and the welding guide part is elastically and vertically movably connected relative to the jacket through the elastic guide connecting piece.

[0008] Furthermore, the welding guide portion is a guide crank, the abutting bottom surface of the guide crank is a slope surface, and the front and rear ends of the slope surface are respectively a front high end chamfer structure and a rear low end chamfer structure.

[0009] Furthermore, a chip removal opening is provided on the shaft shoulder extending from the inner cavity to the outer side.

[0010] Beneficial effects: The welding guide part of the utility model can be automatically adjusted around the shaft shoulder through the clamping sleeve, which improves the flexibility and convenience of the welding guide steering adjustment, eliminates the bulge and cracking of the workpiece during welding, prevents the workpiece from being scrapped, and greatly improves the qualified rate of liquid cooling plate stirring welding, saves manufacturing costs, and can be horizontally expanded to other similar production operations to achieve cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Attached Figure 2 It is a schematic diagram of the half-section structure of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] The liquid cooling plate of the battery pack of new energy vehicles has a high cost and is connected to the frame by a stirring welding process. The following risks exist in the process, which may cause the liquid cooling plate to crack and be difficult to repair, resulting in product scrapping: 1. Risk of uneven grinding of the side beam: The grinding of the four corners of the side beam cannot ensure consistency, and the contact surface between the liquid cooling plate and the side beam is uneven. During the welding process, the welding needle will drag the liquid cooling plate, causing the liquid cooling plate to crack; 2. Risk of deformation of the liquid cooling plate itself: The incoming materials of the liquid cooling plate are different, the weld position is bent and deformed, and the weld position is raised, causing cracking; 3. Risk of assembly offset between the liquid cooling plate and the frame: When employees assemble the liquid cooling plate and the frame, if the single-side gap is too small and there is insufficient space margin during welding, the liquid cooling plate will be squeezed, bulged, and cracked; 4. Risk of occasional failure of equipment and processes: The spindle angle is offset, and the welding needle and bushing are worn, resulting in cracking of the liquid cooling plate.

[0015] The workpiece of the utility model is described by taking the liquid cooling plate of the battery pack as an example, as follows:

[0016] As attached Figure 1 and attached Figure 2As shown, a stirring welding guide device for adjusting the guide orientation based on the welding path includes a stirring welding head 2, a shoulder 3 and a jacket 4 coaxially arranged from the inside to the outside; the jacket 4 is provided with a welding guide 5 adjacent to the shoulder 1, and the welding guide 5 can rotate around the shoulder 3 through the jacket 4, and on the welding forward path, the welding guide 5 rotates to a position in front of the shoulder 3. It includes a positioning drive unit 6 driven by the jacket 4 and a positioning component 7 for positioning, the positioning drive unit 6 drives the jacket 4 to rotate, and the positioning component 7 positions the jacket 4 to be fixed relative to the shoulder 3. The welding guide 5 of the utility model can be automatically adjusted around the shoulder 3 through the jacket 4, improves the flexibility and convenience of the welding guide steering adjustment, eliminates the phenomenon of bulges and cracks in the welding process of the workpiece, prevents the workpiece from being scrapped, and greatly improves the qualified rate of the liquid cooling plate stirring welding, saves manufacturing costs, and can be horizontally expanded to other similar production operations to achieve cost reduction and efficiency improvement.

[0017] When the position of the welding guide 5 needs to be adjusted, the adjustment driving unit 6 provides the adjustment driving force, and after adjusting to the accurate position, the positioning component 7 performs positioning and locking.

[0018] More specifically, as Figure 2 As shown, the positioning drive unit 6 is a servo gear transmission mechanism driven by the gear transmission of the jacket 4. The positioning drive unit 6 includes a bracket 61, a driving gear 62, a driven partial gear 63 and a servo motor 64. The bracket 61 is connected to the housing 1 of the stirring welding head 2. The bottom of the housing 1 is connected to the top of the shoulder 3 through the cover plate 10. The driving gear 62 is installed on the bracket 61 through the gear shaft 60. The servo motor 64 drives the connected gear shaft 60. The driven partial gear 63 is located on the jacket 4, and the driving gear 62 is meshed with the driven partial gear 63. The positioning component 7 is a micro brake that cooperates with the gear shaft 60 of the servo gear transmission mechanism. When the welding guide 5 is adjusted to a predetermined accurate position, the micro brake brake brakes the gear shaft 60 and brakes the jacket 4 to position and lock the current position of the welding guide 5 relative to the shoulder 3.

[0019] The jacket 4 is composed of an upper ring sleeve 41 and a lower ring sleeve 42 connected by bolts and nuts, wherein: the driven local teeth 63 are installed on the upper ring sleeve 41, and the upper ring sleeve 41 is sleeved on the shaft shoulder 3 from top to bottom, and the two form axial limit by relying on the radial structural size difference; the lower ring sleeve 42 is sleeved on the shaft shoulder 3 from bottom to top, and the two form axial blocking limit by relying on radial protrusions; finally, the upper ring sleeve 41 and the lower ring sleeve 42 are connected by bolts and nuts, and the installation is completed.

[0020] The utility model includes an elastic guide connecting member 8 corresponding to the welding guide portion 5. The welding guide portion 5 is elastically and vertically movably connected relative to the jacket 4 through the elastic guide connecting member 8, which ensures the connection strength while having a certain buffering capacity. The elastic guide connecting member 8 is composed of a guide bolt 81 and a spring 82. The welding guide portion 5 is connected to the upper ring sleeve 41 through the guide bolt 81, and the spring 82 is elastically sleeved on the guide bolt 81.

[0021] It is worth noting that the welding guide part 5 is a guide crank, the bottom surface of the guide crank is a slope surface 50, and the front and rear ends of the slope surface 50 are respectively a front high end chamfer structure 50a and a rear low end chamfer structure 50b, which plays a role of smooth transition before the product is torn.

[0022] The shoulder 3 is provided with a chip removal opening 30 extending from the inner cavity to the outer side. When the stirring welding head 2 is welding, it rotates at a high speed, which will generate a lot of heat. In addition, during welding, aluminum chips will be discharged from the chip removal opening 30. Therefore, the guide crank should be made of a material with high hardness and good wear resistance to increase the service life and avoid the risk of product scrapping due to damage to the guide structure.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A stirring welding guide device for adjusting the guide orientation based on the welding path, characterized in that: The invention comprises a stirring welding head (2), a shaft shoulder (3) and a jacket (4) which are coaxially arranged from the inside to the outside; the jacket (4) is provided with a welding guide portion (5) adjacent to the shaft shoulder (3); the welding guide portion (5) can rotate around the shaft shoulder (3) through the jacket (4); and on the welding forward path, the welding guide portion (5) rotates to a position in front of the shaft shoulder (3).

2. The stirring welding guide device for adjusting the guide orientation based on the welding path according to claim 1 is characterized in that: It comprises a positioning drive unit (6) drivingly matched with the jacket (4) and a positioning component (7) positioningly matched with the jacket (4); the positioning drive unit (6) drives the jacket (4) to rotate, and the positioning component (7) positions the jacket (4) to be fixed relative to the shaft shoulder (3).

3. The stirring welding guide device for adjusting the guide orientation based on the welding path according to claim 2 is characterized in that: The positioning drive unit (6) is a servo gear transmission mechanism driven by the gear transmission of the jacket (4), and the positioning component (7) is a micro brake that cooperates with the gear shaft (60) of the servo gear transmission mechanism for braking.

4. The stirring welding guide device for adjusting the guide orientation based on the welding path according to claim 1 is characterized in that: It comprises an elastic guide connecting piece (8) corresponding to the welding guide part (5), and the welding guide part (5) is elastically and vertically movably connected relative to the jacket (4) via the elastic guide connecting piece (8).

5. The stirring welding guide device for adjusting the guide orientation based on the welding path according to claim 1, characterized in that: The welding guide part (5) is a guide crank, the abutting bottom surface of the guide crank is a slope surface (50), and the front and rear ends of the slope surface (50) respectively have a front high end chamfer structure (50a) and a rear low end chamfer structure (50b).

6. The stirring welding guide device for adjusting the guide orientation based on the welding path according to claim 1, characterized in that: The shaft shoulder (3) is provided with a chip removal opening (30) extending from the inner cavity to the outside.

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