Stud welding auxiliary tool for OBC shell machining and charger shell

Abstract

The invention discloses a stud welding auxiliary tool for OBC shell machining and a charger shell, and belongs to the field of stud welding. The device comprises a positioning plate capable of being placed on the surface of the water channel of the OBC shell, the positioning plate and the water channel are fixed through a fixing assembly, the positions of the positioning plate and the OBC shell can be fixed, a round hole groove corresponding to the round stud and a special-shaped groove corresponding to the special-shaped stud are formed in the surface of the positioning plate, and after the positioning plate is fixed to the surface of the OBC shell, the positioning plate can be fixed to the surface of the OBC shell through the fixing assembly. A round stud and a special-shaped stud can be placed in the OBC shell corresponding to the positions of the round hole groove and the special-shaped groove, meanwhile, a limiting ring and a wall attaching ring are fixed to the surfaces of the round hole groove and the special-shaped groove, the limited area of the studs can be further prolonged through the limiting ring, it is guaranteed that the positions of the studs are limited after the studs are placed in the OBC shell, and displacement is avoided; meanwhile, one side of the wall attaching ring is attached to the OBC shell or the inner wall of the water channel, and the stability of the positioning plate during stud welding is guaranteed; and meanwhile, the stud can be quickly placed at a corresponding position.

Description

Technical Field

[0001] The present invention relates to the field of stud welding, and in particular to a stud welding auxiliary tooling for processing an OBC shell and a charger shell. Background Art

[0002] The OBC shell is the on-board charger shell and is the core protective carrier of the new energy vehicle charging system. Studs are generally welded inside the OBC shell to separate the internal space of the OBC shell and reinforce the OBC shell.

[0003] Currently, manual positioning is a common method for stud welding inside OBC shells. Based on process requirements, relying on experience and visual judgment, operators manually place the studs at the predetermined welding position on the workpiece, using simple tools (such as tweezers and clamps) for initial fixation before starting the laser welding equipment to weld. However, this manual positioning method has many limitations; the stud welding position is affected by factors such as the operator's skill level, fatigue level, and vision, making it difficult to ensure its positioning accuracy. Repeated adjustments are required to confirm the stud position, which is time-consuming and cannot guarantee that the stud position will not change during the welding process.

[0004] In summary, the manual positioning method used in the existing technology for stud welding inside the OBC shell is affected by factors such as the operator's skills, fatigue, and vision, making it difficult to ensure positioning accuracy, time-consuming, and unable to ensure that the stud position remains unchanged during welding. Summary of the Invention

[0005] The present invention provides a stud welding auxiliary tooling and charger housing for OBC shell processing, which can solve the problems in the prior art that the manual positioning method used for stud welding inside the OBC shell is affected by factors such as the operator's skills, fatigue, and eyesight, making it difficult to ensure positioning accuracy, time-consuming, and unable to ensure that the stud position remains unchanged during welding.

[0006] A stud welding auxiliary tool for OBC shell processing, comprising:

[0007] A positioning plate is placed on the surface of the water channel of the OBC housing, and a fixing component is provided between the positioning plate and the water channel to define the position of the positioning plate;

[0008] A plurality of observation slots are provided on the surface of the positioning plate, the plurality of observation slots are arranged at intervals, the surface of the positioning plate is provided with a plurality of round hole slots and a plurality of special-shaped slots, the round hole slots are adapted to the round studs, and the special-shaped slots are adapted to the special-shaped studs;

[0009] Several limiting rings and several wall-adhering rings, several limiting rings are fixedly connected to the edges of the circular hole groove or the special-shaped groove, several wall-adhering rings are fixedly connected to the edges of the circular hole groove or the special-shaped groove, and the edges of the wall-adhering rings are in contact with the inner wall edge of the OBC shell or the edge of the waterway.

[0010] Optionally, the fixing assembly includes a plurality of positioning holes opened on the surface of the positioning plate, and a plurality of fixing holes are opened on the surface of the OBC shell, and the positioning holes and fixing holes are used to fix the positioning pins.

[0011] Optionally, the edge of the positioning plate fits into the edge of the inner wall of the OBC shell.

[0012] Optionally, a plurality of gap grooves are provided on the surface of the positioning plate, and the gap grooves are all semi-open grooves.

[0013] Optionally, the lengths of two adjacent adherent rings are different, and the length of the adherent ring close to the corner of the OBC shell is greater than the length of the adjacent adherent ring.

[0014] Optionally, a connecting block is fixedly connected between adjacent wall-adhering rings, one side of the connecting block contacts the inner wall of the OBC shell or the edge of the water tank, and the length of the connecting block is smaller than the length of the wall-adhering ring.

[0015] Optionally, the positioning plate is made of any one of stainless steel, aluminum, iron, graphite and Teflon.

[0016] Optionally, the positioning plate includes two embedded plates, and the edges of the embedded plates are in contact with the inner wall edge of the OBC shell and the edge of the adjacent water channel.

[0017] Optionally, a plurality of limiting rings and wall-adhering rings are fixedly connected to the surface of the embedded plate, and the limiting rings and wall-adhering rings are in contact with the bottom of the OBC shell on a side away from the embedded plate.

[0018] A charger housing comprises a charger housing and two partition blocks, wherein the two partition blocks are fixedly arranged inside the charger housing, and a water channel is formed between the two partition blocks; a fixing hole for fixing a positioning pin is opened on the surface of the partition block.

[0019] The present invention provides a stud welding auxiliary tooling and charger housing for processing an OBC shell, comprising a positioning plate that can be placed on the surface of a water channel of the OBC shell, and the positioning plate and the water channel are fixed by a fixing assembly, so that the positions of the positioning plate and the OBC shell can be fixed, and a circular hole groove corresponding to the circular stud and a special-shaped groove corresponding to the special-shaped stud are provided on the surface of the positioning plate. After the positioning plate is fixed to the surface of the OBC shell, the circular studs and the special-shaped studs can be placed in the interior of the OBC shell at the positions corresponding to the circular hole groove and the special-shaped groove. At the same time, a limiting ring and a wall-attaching ring are fixed on the surface of the circular hole groove and the special-shaped groove. The limiting ring can further extend the area where the stud is restricted, so as to ensure that after the stud is placed in the interior of the OBC shell, a larger area is restricted. The system can avoid displacement during welding or placement; at the same time, one side of the wall-adhering ring fits with the inner wall of the OBC shell or the water channel to ensure the stability of the positioning plate during stud welding; thus ensuring the stability during stud welding, and after the positioning plate is fixed to the surface of the OBC shell, specific studs can be directly placed on the surface of the OBC shell according to the positions of the round hole grooves and special-shaped grooves. After all the studs are placed, before welding, it is only necessary to adjust and ensure that all the round studs and special-shaped studs are perpendicular to the inner wall of the OBC shell. During welding, the laser can be injected from the position of the observation slot to perform welding; during the welding process, the limiting ring and the wall-adhering ring will limit the positions of the round studs and special-shaped studs to ensure that they are in the same position when placed after welding, thus ensuring the quality of the OBC shell after welding;

[0020] The adjacent wall rings on the surface of the positioning plate are set to different lengths, and the wall rings near the corners of the positioning plate are relatively longer, which can ensure the stable state of the corners of the positioning plate after contact with the corners of the inner wall of the OBC shell. A connecting block is set between the two wall rings located at the corners of the positioning plate. The positions of the two wall rings are limited by the connecting block to avoid changes in the distance between the two after long-term use. At the same time, the thickness of the corners of the positioning plate is increased, the bearing capacity of the corners of the positioning plate is enhanced, and the corners of the positioning plate are avoided from being quickly worn during use, thereby ensuring the service life of the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a stud welding auxiliary tooling for OBC shell processing and a charger shell structure provided by the present invention;

[0022] Figure 2 A side view of the charger housing provided by the present invention;

[0023] Figure 3 A top view of the positioning plate provided by the present invention;

[0024] Figure 4 A top view of the separator block provided by the present invention;

[0025] Figure 5A structural stereogram of the positioning plate provided by the present invention;

[0026] Figure 6 This is a bottom view of the positioning plate provided by the present invention.

[0027] Description of reference numerals:

[0028] 11. Positioning plate; 12. Observation slot; 13. Circular hole slot; 14. Special-shaped slot; 15. Limiting ring; 16. Wall-attaching ring;

[0029] 21. Positioning hole; 22. Fixing hole; 23. Clearance slot; 24. Connecting block;

[0030] 3. Embedded board;

[0031] 41. Charger housing; 42. Separator block. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0033] like Figures 1 to 6 As shown, an embodiment of the present invention provides an auxiliary tool for stud welding for processing an OBC shell, comprising:

[0034] A positioning plate 11 is placed on the surface of the water channel of the OBC housing. A fixing component is provided between the positioning plate 11 and the water channel to define the position of the positioning plate 11;

[0035] A plurality of observation slots 12 are provided on the surface of the positioning plate 11, and the plurality of observation slots 12 are arranged at intervals. The surface of the positioning plate 11 is provided with a plurality of round hole slots 13 and a plurality of special-shaped slots 14, wherein the round hole slots 13 are adapted to the round studs, and the special-shaped slots 14 are adapted to the special-shaped studs;

[0036] It should be noted that the observation slot 12, the circular hole slot 13 and the special-shaped slot 14 are spaced apart on the surface of the positioning plate 11, and the edges of the observation slot 12, the circular hole slot 13 and the special-shaped slot 14 do not contact the edge of the OBC shell or the water channel inside the OBC shell;

[0037] Several limiting rings 15 and several wall-adhering rings 16, wherein the limiting rings 15 are fixedly connected to the edges of the circular hole groove 13 or the special-shaped groove 14, and the wall-adhering rings 16 are fixedly connected to the edges of the circular hole groove 13 or the special-shaped groove 14, and the edges of the wall-adhering rings 16 are in contact with the inner wall edge of the OBC shell or the edge of the waterway;

[0038] It should be noted that the side of the wall-adhering ring 16 in contact with the inner wall of the OBC housing or the waterway is not limited to a specific position;

[0039] In summary, an embodiment of the present invention provides a stud welding auxiliary tooling for OBC shell processing, including a positioning plate 11 that can be placed on the surface of the water channel of the OBC shell, and the positioning plate 11 and the water channel are fixed by a fixing component, so that the position of the positioning plate 11 and the OBC shell can be fixed, and a circular hole groove 13 corresponding to the circular stud and a special-shaped groove 14 corresponding to the special-shaped stud are opened on the surface of the positioning plate 11. After the positioning plate 11 is fixed to the surface of the OBC shell, the circular studs and special-shaped studs can be placed inside the OBC shell at the positions corresponding to the circular hole groove 13 and the special-shaped groove 14. At the same time, a limiting ring 15 and a wall-attached ring 16 are also fixed on the surface of the circular hole groove 13 and the special-shaped groove 14. The limiting ring 15 can further extend the area where the stud is restricted to ensure that the stud is placed inside the OBC shell. After the part is installed, the position of a larger area is restricted to avoid displacement during welding or placement; at the same time, one side of the wall ring 16 is in contact with the OBC shell or the inner wall of the waterway to ensure the stability of the positioning plate 11 during stud welding; thereby ensuring the stability during stud welding, and after the positioning plate 11 is fixed to the surface of the OBC shell, specific studs can be placed directly on the surface of the OBC shell according to the positions of the circular hole groove 13 and the special-shaped groove 14. After all the studs are placed, before welding, it is only necessary to adjust and ensure that all the circular studs and special-shaped studs are perpendicular to the inner wall of the OBC shell. During welding, the laser can be injected from the position of the observation groove 12 to perform welding; during the welding process, the limiting ring 15 and the wall ring 16 will limit the positions of the circular studs and special-shaped studs to ensure that they are in the same position when placed after welding, thereby ensuring welding quality;

[0040] In some specific embodiments, the fixing assembly includes a plurality of positioning holes 21 opened on the surface of the positioning plate 11, and a plurality of fixing holes 22 opened on the surface of the OBC shell. The positioning holes 21 and the fixing holes 22 are used to fix the positioning pins; the edge of the positioning plate 11 is in contact with the edge of the inner wall of the OBC shell;

[0041] Several of the positioning holes 21 are staggered. The staggered positioning holes 21 can disperse the load so that the force borne by the positioning pin is evenly distributed to multiple positions. The risk of deformation or loosening of the positioning plate due to excessive local force is reduced, especially in a vibration or impact environment. The stability of the overall structure can be significantly improved. The staggered positioning holes 21 provide more reference benchmarks for the assembly process. The operator can complete the positioning by quickly aligning the holes in different directions, ensuring that the positioning plate 11 is completely in contact with the inner wall of the OBC shell, and further ensuring the position accuracy of the circular studs and special-shaped studs defined by the positioning plate 11.

[0042] The surface of the positioning plate 11 is provided with a plurality of gap grooves 23, and the gap grooves 23 are all semi-open grooves; by fitting the fixing holes 22 and the positioning holes 21, the positioning plate 11 can be fitted with the inner wall of the OBC shell, and the gap grooves 23 are provided at the edge of the positioning plate 11, so that the positioning plate 11 can be easily separated from the OBC shell by the edge of the positioning plate 11; the gap grooves 23 are set as semi-open grooves, so that the overall edge of the positioning plate 11 is in an uneven state, which can reduce the overall weight of the positioning plate 11 and save materials; at the same time, the gap grooves 23 can also be used as guides or positioning points during assembly, helping the operator to place the positioning plate 11 to the specified position inside the OBC shell more quickly and accurately; after the studs inside the OBC shell are welded and fixed, the positioning plate 11 can be taken out at the gap groove 23 position or the observation groove 12 position to facilitate subsequent operations;

[0043] In some specific embodiments, the lengths of the two adjacent wall-attached rings 16 are different, and the length of the wall-attached ring 16 near the corner of the OBC shell is greater than the length of the adjacent wall-attached ring 16; since the length of the wall-attached ring 16 near the corner of the OBC shell is greater than the length of the adjacent wall-attached ring 16, there are contact points with different heights at the contact position between the positioning plate and the inner wall of the OBC shell. The different heights have relatively different fixing effects, and the length near the corner of the OBC shell is greater, which can effectively ensure that the position of the wall-attached ring 16 and the OBC shell is relatively fixed, and the wear state of the positioning plate 11 or the state of the formed inner wall of the OBC shell can be observed according to the contact state between the different positions of the wall-attached ring 16 and the inside of the OBC shell; the shorter wall-attached ring 16 is set farther away from the corner of the OBC shell, which does not affect the fixing effect; at the same time, after the internal stud welding of the OBC shell is completed, the operator can quickly release the fixed state of the positioning plate 11 and the OBC shell through tools or methods from the position of the shorter wall-attached ring 16, which is convenient for subsequent disassembly;

[0044] In a further embodiment, a connecting block 24 is fixedly connected between adjacent wall-adhering rings 16, one side of the connecting block 24 contacts the inner wall of the OBC shell or the edge of the water tank, and the length of the connecting block 24 is shorter than the length of the wall-adhering ring 16; wall-adhering rings 16 of different heights are provided to facilitate the positioning plate 11 to be pried out from the side of the shorter wall-adhering ring 16, and the shorter connecting block 24 is connected between the two. When the operator applies pressure to the wall-adhering ring 16, the connecting block 24 can disperse the force received, and at the same time, it can avoid the position of adjacent wall-adhering rings from changing, resulting in deformation of the positioning plate 11; at the same time, due to the presence of the connecting block 24 at the corner position, the positioning plate 11 at this position is relatively thicker, and the thickness of the corner of the positioning plate 11 is relatively increased, thereby ensuring the hardness of the corner and avoiding the corner position being worn during the use of the positioning plate 11, which affects the subsequent positioning and use of the positioning plate 11;

[0045] In some specific embodiments, the positioning plate 11 is made of any one of stainless steel, aluminum, iron, graphite, and Teflon. The above materials ensure that the overall positioning plate 11 is relatively strong and not easily deformed, thereby preventing the positioning plate 11 from deforming after long-term use. The service life of the positioning plate 11 is guaranteed, and at the same time, the positioning plate 11 is ensured not to change during the stud welding inside the OBC housing, thereby affecting the position and vertical state of the stud.

[0046] In some specific embodiments, the positioning plate 11 includes two embedded plates 3, the edges of the embedded plates 3 are in contact with the inner wall edge of the OBC shell and the edge of the adjacent water channel, and a plurality of limiting rings 15 and wall-adhering rings 16 are fixedly connected to the surface of the embedded plates 3, and the limiting rings 15 and wall-adhering rings 16 are in contact with the bottom of the OBC shell away from the side of the embedded plates 3; the limiting rings 15 and wall-adhering rings 16 touching the bottom can ensure that the two embedded plates 3 are perpendicular to the OBC shell, and the edges of the embedded plates 3 are in contact with the inner wall edge of the OBC shell and the edge of the adjacent water channel, which can further limit the position of the embedded plates 3, thereby ensuring that the position of the embedded plates 3 will not change after being placed inside the OBC shell and the limiting rings 15 and wall-adhering rings 16 are kept perpendicular to the bottom of the OBC shell, ensuring that the studs placed inside the OBC shell through the embedded plates will not change position during the welding process;

[0047] like Figures 1 to 4 As shown, an embodiment of the present invention further provides a charger housing, comprising a charger housing 41 and two partition blocks 42. The two partition blocks 42 are fixedly disposed inside the charger housing 41, and a water channel is formed between the two partition blocks 42. The surface of the partition block 42 is provided with a fixing hole 22 for fixing a positioning pin.

[0048] Working principle of the present invention:

[0049] Before placing the studs, first place the positioning plate 11 on the surface of the OBC shell corresponding to the fixing holes 22 and the positioning holes 21, and insert the positioning pins; then insert the corresponding studs from the circular holes and special-shaped holes, and finally move the studs, positioning plate 11 and OBC shell to the welding instrument position for welding.

[0050] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A stud welding auxiliary tool for OBC shell processing, characterized in that: include: A positioning plate (11) is placed on the surface of the water channel of the OBC housing, and a fixing component is provided between the positioning plate (11) and the water channel for defining the position of the positioning plate (11); A plurality of observation slots (12) are provided on the surface of the positioning plate (11), and the plurality of observation slots (12) are spaced apart. The surface of the positioning plate (11) is provided with a plurality of circular hole slots (13) and a plurality of special-shaped slots (14), wherein the circular hole slots (13) are adapted to the circular studs, and the special-shaped slots (14) are adapted to the special-shaped studs; A plurality of limiting rings (15) and a plurality of wall-adhering rings (16) are provided. The plurality of limiting rings (15) are fixedly connected to the edges of the circular hole groove (13) or the special-shaped groove (14), and the plurality of wall-adhering rings (16) are fixedly connected to the edges of the circular hole groove (13) or the special-shaped groove (14), and the edges of the wall-adhering rings (16) are in contact with the inner wall edge of the OBC shell or the edge of the waterway.

2. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: The fixing assembly comprises a plurality of positioning holes (21) opened on the surface of the positioning plate (11), and a plurality of fixing holes (22) opened on the surface of the OBC housing. The positioning holes (21) and the fixing holes (22) are used to fix positioning pins.

3. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: The edge of the positioning plate (11) is in contact with the edge of the inner wall of the OBC housing.

4. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: A plurality of gap grooves (23) are provided on the surface of the positioning plate (11), and the gap grooves (23) are all semi-open grooves.

5. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: The lengths of the two adjacent adherent rings (16) are different, and the length of the adherent ring (16) close to the corner of the OBC shell is greater than the length of the adjacent adherent ring (16).

6. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: A connecting block (24) is fixedly connected between adjacent wall-adhering rings (16), one side of the connecting block (24) contacts the inner wall of the OBC shell or the edge of the water tank, and the length of the connecting block (24) is smaller than the length of the wall-adhering ring (16).

7. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: The positioning plate (11) is made of any one of stainless steel, aluminum, iron, graphite and Teflon.

8. The stud welding auxiliary tool for OBC shell processing according to claim 1, characterized in that: The positioning plate (11) comprises two embedded plates (3), the edges of the embedded plates (3) being in contact with the inner wall edge of the OBC housing and the edge of the adjacent water channel.

9. The stud welding auxiliary tool for OBC shell processing according to claim 8, characterized in that: A plurality of limiting rings (15) and wall-adhering rings (16) are fixedly connected to the surface of the embedded plate (3), and the limiting rings (15) and wall-adhering rings (16) are in contact with the bottom of the OBC shell on a side away from the embedded plate (3).

10. A charger housing, characterized in that: The invention comprises a charger housing (41) and two partition blocks (42). The two partition blocks (42) are fixedly arranged inside the charger housing (41), and a water channel is formed between the two partition blocks (42). A fixing hole (22) for fixing a positioning pin is opened on the surface of the partition block (42).

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