A welding inspection system

Abstract

The utility model discloses a kind of welding detection systems, including tool base, workpiece support seat and first screw sleeve detection mechanism.Workpiece support seat is located in tool base, for supporting workpiece.In first screw sleeve detection mechanism, first cylinder is equipped in tool base, its piston rod is fixedly connected with first push plate, first connecting block is equipped in push plate, front end has columnar recess, lower end has the convex portion extending forward, guide block is equipped in convex portion, middle part is provided with the through-hole for telescopic rod, telescopic rod passes through through-hole, front end is equipped with telescopic rod joint, its rear side rod has annular convex portion, rear part is located in columnar recess, spring is sleeved on the rod, the front and rear ends of spring respectively with annular convex portion, recess bottom abut, first sensor is equipped on the convex portion of the rear side of guide block, for detecting annular convex portion.The utility model can realize the detection to workpiece after welding, avoid the technical problem of screw sleeve missed welding.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, specifically to a battery pack crossbeam welding testing system. Background Technology

[0002] In the automotive manufacturing industry, the welding of battery pack crossbeams is a crucial step in ensuring the assembly accuracy and structural strength of the entire vehicle. Among these steps, the welding of bolt sleeves is a vital connection process, requiring the welding of multiple bolt sleeves onto the surface of the battery pack crossbeam to achieve reliable connections with other components. Due to the large number of bolt sleeves to be welded onto the battery pack crossbeam surface, it is difficult to comprehensively and accurately monitor the welding condition of each bolt sleeve. This can easily lead to incomplete welding of some bolt sleeves, affecting the assembly efficiency of automotive components and potentially causing safety hazards due to connection failure during vehicle operation. Furthermore, the existence of incomplete welding issues necessitates additional manpower and testing equipment for troubleshooting and rework, increasing production costs and timelines. Utility Model Content

[0003] In view of this, the present invention discloses a welding inspection system, the specific solution of which is as follows:

[0004] A welding inspection system includes a tooling base, a workpiece support, and a first threaded sleeve inspection mechanism;

[0005] The workpiece support is mounted on the tooling base and is used to support the workpiece.

[0006] The first threaded sleeve detection mechanism includes a first cylinder, a first push plate, a first sensor, a first connecting block, a spring, a telescopic rod, a guide block, and a telescopic rod connector;

[0007] The first cylinder is mounted on a tooling base. The first push plate is fixedly connected to the piston rod of the first cylinder. The first connecting block is mounted on the first push plate, and the front end of the first connecting block is provided with a columnar groove. The lower end of the first connecting block is provided with a protrusion extending forward. The guide block is mounted on the protrusion of the first connecting block. The middle part of the guide block is provided with a through hole for the telescopic rod to pass through. The telescopic rod passes through the through hole on the guide block. The telescopic rod joint is located at the front end of the telescopic rod. The telescopic rod located behind the guide block is provided with an annular protrusion. The rear part of the telescopic rod is located in the columnar groove of the first connecting block. A spring is sleeved on the telescopic rod. The front end of the spring abuts against the annular protrusion on the telescopic rod. The rear end of the spring is located in the columnar groove of the first connecting block and abuts against the bottom of the columnar groove.

[0008] The first sensor is disposed on the protrusion of the first connecting block located behind the guide block.

[0009] As a supplement to the technical solution of this utility model, the first threaded sleeve detection mechanism further includes a first connecting plate, a first limiting rod, and a first protrusion; the first connecting plate is disposed on the first cylinder and fixedly connected to the cylinder sleeve side surface of the first cylinder, the rear end of the first limiting rod is fixedly connected to the first connecting plate, the front end of the first limiting rod is located in front of the first push plate and bends towards the first push plate, and the first protrusion is disposed on the first push plate. When the piston rod of the first cylinder extends and drives the first push plate to move forward, the first protrusion can contact the front end of the first limiting rod.

[0010] As a supplement to the technical solution of this utility model, it also includes a first screw sleeve limiting mechanism, which includes a second cylinder, a second connecting block, and a second limiting rod;

[0011] The second cylinder is mounted on the tooling base, and the second limiting rod is connected to the piston rod of the second cylinder through the second connecting block. The axis of the second limiting rod and the axis of the telescopic rod of the first threaded sleeve detection mechanism are on the same straight line.

[0012] As a supplement to the technical solution of this utility model, the first screw sleeve limiting mechanism also includes a cylinder stop block;

[0013] The cylinder stop is fixedly installed on one side of the second connecting block and is located on the path of the piston rod of the second cylinder extending out of the second connecting block and moving forward.

[0014] As a supplement to the technical solution of this utility model, it also includes a connecting protrusion detection mechanism, which is set on the first push plate of the first screw sleeve detection mechanism, including a first connecting block, a protrusion support block, a protrusion limiting block, a second sensor, and a second sensor support arm.

[0015] The front end of the first connecting block is provided with a protruding support block and a protruding limiting block. The protruding limiting block is located above the protruding support block. The protruding support block is provided with a vertical through hole. The second sensor is connected to the first push plate through the second sensor support arm, and the second sensor is located below the vertical through hole of the protruding support block.

[0016] As a supplement to the technical solution of this utility model, a second threaded sleeve detection mechanism is also included, which includes a detection support base, a first support block, a third sensor, and a third sensor support arm.

[0017] The detection support is mounted on the tooling base. The first support block and the third sensor support arm are both mounted on the detection support. The first support block has a vertical through hole. The third sensor is mounted on the third sensor support arm and is located below the vertical through hole of the first support block.

[0018] As a supplement to the technical solution of this utility model, the workpiece support includes a base column, a first side block, a second side block, a transverse support beam, and a bottom support block; the first side block and the transverse support beam are both disposed on the support column, and the first side block is located above the transverse support beam, and the first side block is vertically disposed.

[0019] The transverse support beam is set horizontally, with its first end connected to the base column. The bottom support block is set on the transverse support beam. The second end of the transverse support beam is provided with a second side block. The second side block is provided with a vertically upward extending stop. The second side block, the first side block, and the bottom support block together form a U-shaped groove structure with an opening at the top.

[0020] As a supplement to the technical solution of this utility model, adjusting shims are provided between the first side block and the base column, and between the bottom support block and the transverse support beam.

[0021] Beneficial Effects: In the battery pack beam welding inspection system disclosed in this utility model, the first threaded sleeve inspection mechanism uses a cylinder to drive a telescopic rod joint to contact the threaded sleeve. A spring compression triggers a sensor to detect the annular protrusion, achieving reliable inspection of the first threaded sleeve inside the through-hole of the vertical profile. This prevents missed welds and ensures the welding integrity of critical connecting components. The first threaded sleeve limiting mechanism, in conjunction with the first threaded sleeve inspection mechanism, prevents excessive thrust during inspection from damaging the threaded sleeve welding structure, protecting the strength and stability of the welded part of the workpiece. In another aspect of this utility model, the second threaded sleeve inspection mechanism prevents heat-induced bending deformation during welding. Simultaneously, a third sensor passes through the through-hole of the first support block to detect the second threaded sleeve, combining structural support and welding inspection functions to ensure the welding quality of the threaded sleeves on the connecting ribs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the first screw sleeve detection mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the first screw sleeve detection mechanism of this utility model.

[0027] Figure 6 This is a schematic diagram of the first screw sleeve limiting mechanism of this utility model.

[0028] Figure 7This is a schematic diagram of the connection protrusion detection mechanism of this utility model.

[0029] Figure 8 This is a schematic diagram of the second screw sleeve detection mechanism of this utility model.

[0030] Figure 9 This is a schematic diagram of the workpiece support structure of this utility model.

[0031] Figure 10 This is a schematic diagram of the crossbeam structure of the battery pack of this utility model.

[0032] Figure 11 This is a schematic diagram of the crossbeam structure of the battery pack of this utility model.

[0033] In the diagram: 1. Tooling base, 2. Workpiece support, 3. First threaded sleeve detection mechanism, 4. First cylinder, 5. First push plate, 6. First sensor, 7. First connecting block, 8. Spring, 9. Telescopic rod, 10. Guide block, 11. Telescopic rod joint, 12. Columnar groove, 13. First connecting plate, 14. First limiting rod, 15. First protrusion, 16. First threaded sleeve limiting mechanism, 17. Second cylinder, 18. Second connecting block, 19. Second limiting rod, 20. Cylinder stop, 21. Connecting protrusion detection mechanism, 22. Annular protrusion, 23. Protrusion support 24. Support block, 25. Protruding limiting block, 26. Second sensor, 27. Second sensor support arm, 28. Second threaded sleeve detection mechanism, 29. Detection support seat, 30. First support block, 31. Third sensor, 32. Third sensor support arm, 33. Base column, 34. First side stop block, 35. Second side stop block, 36. Horizontal support beam, 37. Bottom support block, 38. Battery pack crossbeam, 39. Horizontal profile, 40. Vertical profile, 41. First threaded sleeve, 42. Second threaded sleeve, 43. Connecting protrusion, 44. Connecting rib, 45. First support block. Detailed Implementation

[0034] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figures 1 to 11 As shown, a welding inspection system is used to weld a battery pack crossbeam 37. The battery pack crossbeam 37 includes a horizontal profile 38 and a vertical profile 39. The vertical profile 39 is disposed at the upper end of the horizontal profile 38. The horizontal profile 38 and the vertical profile 39 have an L-shaped structure. The vertical profile 39 has a horizontally arranged through hole that penetrates the vertical profile 39, into which a first threaded sleeve 40 needs to be welded. The back of the vertical profile 39 has a raised rib portion with a through hole, into which the first threaded sleeve 40 needs to be welded.

[0037] The welding fixture includes a fixture base 1, a workpiece support 2, and a first threaded sleeve detection mechanism 3.

[0038] The workpiece support 2 is disposed on the tooling base 1 and is used to support the workpiece.

[0039] The first threaded sleeve detection mechanism 3 includes a first cylinder 4, a first push plate 5, a first sensor 6, a first connecting block 7, a spring 8, a telescopic rod 9, a guide block 10, and a telescopic rod joint 11.

[0040] The first cylinder 4 is mounted on the tooling base 1. The first push plate 5 is fixedly connected to the cylinder piston rod. The first connecting block 7 is mounted on the first push plate 5, and the front end of the first connecting block 7 has a columnar groove 12. The rear part of the spring 8 is located in the columnar groove 12 on the first connecting block 7. The lower end of the first connecting block 7 has a forward-extending protrusion. The guide block 10 is mounted on the protrusion of the first connecting block 7, and the middle part of the guide block 10 has a through hole for the telescopic rod 9 to pass through. The telescopic rod 9 passes through the through hole on the guide block 10, and its front end is located on the front side of the guide block. The telescopic rod 9 located on the rear side of the guide block 10 has an annular protrusion 22. The rear part of the telescopic rod 9 is fitted with the spring 8, and the front end of the spring 8 abuts against the annular protrusion 22 of the telescopic rod 9. The protrusion of the first connecting block 7 located on the rear side of the guide block 10 has a first sensor 6. The telescopic rod joint 11 is located at the front end of the telescopic rod 9 and is used to directly contact the first threaded sleeve 40.

[0041] When it is necessary to inspect the threaded sleeve on the vertical profile 39, the piston rod of the first cylinder 4 extends, pushing the first connecting block 7 forward, which in turn drives the spring 8 and the telescopic rod 9 forward. When the telescopic rod joint 11 at the front end of the telescopic rod 9 abuts against the first threaded sleeve 40, the spring 8 is compressed, and the telescopic rod 9 can no longer move forward. In this state, the annular protrusion 22 on the telescopic rod 9 is located above the first sensor 6, enabling the first sensor 6 to detect the annular protrusion 22. When the first sensor 6 can detect the annular protrusion 22, it means that the first threaded sleeve 40 has been welded into the vertical profile 39 of the workpiece.

[0042] With the above settings, the first threaded sleeve 40 on the workpiece can be inspected to avoid the occurrence of incomplete welding of the first threaded sleeve 40.

[0043] As a preferred embodiment of this utility model, the first threaded sleeve detection mechanism 3 further includes a first connecting plate 13, a first limiting rod 14, and a first protrusion 15. The first connecting plate 13 is disposed on the first cylinder 4 and fixedly connected to the cylinder sleeve side surface of the first cylinder 4. The rear end of the first limiting rod 14 is fixedly connected to the first connecting plate 13, and the front end of the first limiting rod 14 is bent towards the first push plate 5. The first protrusion 15 is disposed on the first push plate 5. With the above arrangement, when the piston rod of the first cylinder 4 extends and drives the first push plate 5 to move forward, the first limiting rod 14 can limit the entire assembly. When the first protrusion 15 contacts the front end of the first limiting rod 14, the piston rod of the first cylinder 4 cannot extend further.

[0044] As a preferred embodiment of this utility model, it further includes a first threaded sleeve limiting mechanism 16, which includes a second cylinder 17, a second connecting block 18, and a second limiting rod 19. The second cylinder 17 is disposed on the tooling base 1, and the second limiting rod 19 is connected to the piston rod of the second cylinder 17 through the second connecting block 18. The second limiting rod 19 is driven by the second cylinder 17 to abut against the first threaded sleeve 40 on the vertical profile 39.

[0045] By setting the first threaded sleeve limiting mechanism 16, the first threaded sleeve 40 can be supported to prevent the first threaded sleeve 40 mechanism from applying a large thrust to the first threaded sleeve 40, which would cause damage to the welded structure at the position of the first threaded sleeve 40.

[0046] The first threaded sleeve limiting mechanism 16 and the first threaded sleeve detection mechanism 3 are respectively arranged on both sides of the workpiece.

[0047] As a supplement to the above technical solution, the first screw sleeve limiting mechanism 16 also includes a cylinder stop block 20.

[0048] The cylinder stop 20 is fixedly disposed on the side of the second connecting block 18 near the workpiece. When the end of the second limiting rod 19 abuts against the first threaded sleeve 40, the cylinder stop 20 contacts the second connecting block 18. By setting the cylinder stop 20, the piston rod of the second cylinder 17 can be restricted from continuing to extend, preventing the second limiting rod 19 from continuously moving forward and causing a large tightening force on the first threaded sleeve 40, which could damage the welded structure at the position of the first threaded sleeve 40.

[0049] The side surface of the vertical profile 39 is also welded with a connecting protrusion 42. The connecting protrusion 42 is a block structure and is connected to the side surface of the vertical profile 39 by welding. It needs to be positioned and supported during the welding process, and it needs to be checked for any missing welds after welding.

[0050] As a preferred technical solution of this utility model, it further includes a connecting protrusion detection mechanism 21, which is disposed on the first push plate 5 on the first threaded sleeve detection mechanism 3, and includes a protrusion support block 23, a protrusion limiting block 24, a second sensor 25, a second sensor support arm 26, and a first connecting block 44.

[0051] The rear end of the first connecting block 44 is connected to the first push plate 5. The front end of the first connecting block 44 is provided with a protruding support block 23 and a protruding limiting block 24. The protruding limiting block 24 is located above the protruding support block 23. The protruding support block 23 is used to support the protruding connecting block. There are two sets of protruding limiting blocks 24, which are located on both sides of the protruding connecting block and are used to position the protruding connecting block. The protruding support block 23 is provided with a vertical through hole. The second sensor 25 is located below the vertical through hole of the protruding support block 23 and is connected to the first push plate 5 through the second sensor support arm 26. The second sensor 25 can detect whether the connecting protrusion 42 is missing a weld.

[0052] The side surface of the vertical profile 39 is also provided with a connecting rib 43, and a vertical through hole needs to be opened on the connecting rib 43 for welding the second threaded sleeve 41. As a preferred technical solution of this utility model, it also includes a second threaded sleeve detection mechanism 27, which includes a detection support 28, a first support block 29, a third sensor 30, and a third sensor support arm 31.

[0053] The detection support 28 is disposed on the tooling base 1. The first support block 29 and the third sensor support arm 31 are both disposed on the detection support 28. The first support block 29 is provided with a vertical through hole. The third sensor 30 is disposed on the third sensor support arm 31 and located below the vertical through hole of the first support block 29. The first support block 29 is used to support the connecting rib 43 on the side surface of the profile to prevent the connecting rib 43 from bending downward due to heat during welding. At the same time, the third sensor 30 can pass through the through hole on the first support block 29 to detect the second threaded sleeve 41.

[0054] As a preferred technical solution of the utility model, the workpiece support 2 includes a base column 32, a first side block 33, a second side block 34, a transverse support beam 35, and a bottom support block 36. The first side block 33 and the transverse support beam 35 are both disposed on the support column, and the first side block 33 is located above the transverse support beam 35. The first side block 33 is vertically disposed and is used to limit the vertical profile 39 of the battery pack beam 37. A transverse support beam 35 is arranged transversely, with its first end connected to the base column 32. A bottom support block 36 is set on the transverse support beam 35. The bottom support beam is used to support the transverse profile 38 of the battery pack crossbeam 37. A second side stop 34 is provided at the second end of the transverse support beam 35. The second side stop 34 is provided with a vertically upward extending stop. The second side stop 34, the first side stop 33, and the bottom support block 36 together form a U-shaped groove structure with an opening at the top. This allows the battery pack crossbeam 37 to be placed in the U-shaped groove. It can support the battery pack crossbeam 37 in the vertical direction while limiting its position on both sides to ensure its positioning accuracy.

[0055] As a supplement to the above technical solution, adjusting shims are provided between the first side block 33 and the base column 32, and between the bottom support block 36 and the transverse support beam 35. By adjusting the shims, the positions of the first side block 33 and the bottom support block 36 can be adjusted so that they can meet the support of battery pack crossbeams 37 of different sizes and specifications.

[0056] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A welding inspection system, characterized in that, Includes tooling base (1), workpiece support base (2), and first screw sleeve detection mechanism (3); The workpiece support base (2) is disposed on the tooling base (1) and is used to support the workpiece; The first threaded sleeve detection mechanism (3) includes a first cylinder (4), a first push plate (5), a first sensor (6), a first connecting block (7), a spring (8), a telescopic rod (9), a guide block (10), and a telescopic rod connector (11). The first cylinder (4) is mounted on the tooling base (1). The first push plate (5) is fixedly connected to the piston rod of the first cylinder (4). The first connecting block (7) is mounted on the first push plate (5), and the front end of the first connecting block (7) is provided with a columnar groove (12). The lower end of the first connecting block (7) is provided with a protrusion extending forward. The guide block (10) is mounted on the protrusion of the first connecting block (7). The middle part of the guide block (10) is provided with a through hole for the telescopic rod (9) to pass through. The telescopic rod (9) passes through the guide block (12). The telescopic rod connector (11) is located at the front end of the telescopic rod (9). The telescopic rod (9) located behind the guide block (10) has an annular protrusion (22). The rear part of the telescopic rod (9) is located in the columnar groove (12) of the first connecting block (7). A spring (8) is sleeved on the telescopic rod (9). The front end of the spring (8) abuts against the annular protrusion (22) on the telescopic rod (9). The rear end of the spring (8) is located in the columnar groove (12) of the first connecting block (7) and abuts against the bottom of the columnar groove (12). The first sensor (6) is disposed on the protrusion of the first connecting block (7) located behind the guide block (10).

2. The welding inspection system according to claim 1, characterized in that, The first threaded sleeve detection mechanism (3) further includes a first connecting plate (13), a first limiting rod (14), and a first protrusion (15). The first connecting plate (13) is disposed on the first cylinder (4) and fixedly connected to the cylinder sleeve side surface of the first cylinder (4). The rear end of the first limiting rod (14) is fixedly connected to the first connecting plate (13). The front end of the first limiting rod (14) is located in front of the first push plate (5) and bends towards the first push plate (5). The first protrusion (15) is disposed on the first push plate (5). When the piston rod of the first cylinder (4) extends and drives the first push plate (5) to move forward, the first protrusion (15) can contact the front end of the first limiting rod (14).

3. The welding inspection system according to claim 1, characterized in that, It also includes a first screw sleeve limiting mechanism (16), which includes a second cylinder (17), a second connecting block (18), and a second limiting rod (19); The second cylinder (17) is mounted on the tooling base (1). The second limiting rod (19) is connected to the piston rod of the second cylinder (17) through the second connecting block (18). The axis of the second limiting rod (19) is on the same straight line as the axis of the telescopic rod (9) of the first threaded sleeve detection mechanism (3).

4. The welding inspection system according to claim 3, characterized in that, The first screw sleeve limiting mechanism (16) also includes a cylinder stop (20); The cylinder stop (20) is fixedly disposed on one side of the second connecting block (18) and is located on the path of the piston rod of the second cylinder (17) extending out of the second connecting block (18) and moving forward.

5. The welding inspection system according to claim 1, characterized in that, It also includes a connecting protrusion detection mechanism (21), which is set on the first push plate (5) on the first screw sleeve detection mechanism (3), including a first connecting block (44), a protrusion support block (23), a protrusion limiting block (24), a second sensor (25), and a second sensor support arm (26). The front end of the first connecting block (44) is provided with a protruding support block (23) and a protruding limiting block (24). The protruding limiting block (24) is located above the protruding support block (23). The protruding support block (23) is provided with a vertical through hole. The second sensor (25) is connected to the first push plate (5) through the second sensor support arm (26), and the second sensor (25) is located below the vertical through hole of the protruding support block (23).

6. The welding inspection system according to claim 1, characterized in that, It also includes a second threaded sleeve detection mechanism (27), which includes a detection support base (28), a first support block (29), a third sensor (30), and a third sensor support arm (31). The detection support base (28) is set on the tooling base (1). The first support block (29) and the third sensor support arm (31) are both set on the detection support base (28). The first support block (29) has a vertical through hole. The third sensor (30) is set on the third sensor support arm (31) and is located below the vertical through hole of the first support block (29).

7. The welding inspection system according to claim 1, characterized in that, The workpiece support base (2) includes a base column (32), a first side block (33), a second side block (34), a transverse support beam (35), and a bottom support block (36); the first side block (33) and the transverse support beam (35) are both set on the support column, and the first side block (33) is located above the transverse support beam (35), and the first side block (33) is set vertically; A transverse support beam (35) is arranged transversely, with its first end connected to the base column (32). A bottom support block (36) is set on the transverse support beam (35). A second side block (34) is set on the second end of the transverse support beam (35). A vertically upward-extending stop is provided on the second side block (34). The second side block (34), the first side block (33), and the bottom support block (36) together form a U-shaped groove structure with an opening at the top.

8. A welding inspection system according to claim 7, characterized in that, Adjustment shims are provided between the first side block (33) and the base column (32), and between the bottom support block (36) and the transverse support beam (35).

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