Friction stir welding equipment for new energy automobile part production and manufacturing

Abstract

The invention relates to the technical field of automobile part production and manufacturing, and discloses friction stir welding equipment for new energy automobile part production and manufacturing, which comprises a transmission shaft, a first stirring assembly is fixedly arranged on the transmission shaft, and a second stirring assembly is arranged at the bottom of the first stirring assembly. A locking assembly is arranged in the second stirring assembly; the transmission shaft is used for providing kinetic energy for the first stirring assembly; the first stirring assembly is used for friction welding of the upper surface of a workpiece; the second stirring assembly is used for friction welding of the lower surface of the workpiece; the locking assembly is used for adjusting the relative distance between the first stirring assembly and the second stirring assembly. The device has the beneficial effects that through the structural design of the locking assembly, the relative distance between the first stirring assembly and the second stirring assembly can be flexibly adjusted. By means of the design, the equipment can be rapidly matched according to automobile parts of different specifications, the universality of the equipment is greatly improved, and the application range of the equipment is greatly widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile part production and manufacturing, in particular to a new energy automobile part production and manufacturing friction stir welding equipment. BACKGROUND

[0002] In the production and manufacturing process of new energy automobile parts, welding process is one of the key links. With the rapid development of the new energy automobile industry, the types and specifications of automobile parts are increasingly diversified, and the requirements for welding process are also increasingly high.

[0003] The existing friction stir welding equipment can only weld the single surface of the automobile part, and cannot weld the upper and lower surfaces of the part at the same time. This single-sided welding method not only increases the complexity of the welding process, but also may cause unstable welding quality, affecting the overall performance of the automobile part. In addition, when facing different specifications of automobile parts, the existing equipment often needs to frequently replace the welding tools or make complex equipment adjustments, which not only wastes time, but also increases the production cost.

[0004] The applicant searched a large number of patent documents during the conception process, and therefore proposed a new energy automobile part production and manufacturing friction stir welding equipment to solve the above-mentioned problems. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides a new energy automobile part production and manufacturing friction stir welding equipment, which solves the problem that different specifications and sizes of automobile parts cannot be simultaneously friction stir welded on the upper and lower surfaces.

[0007] (II) Technical solutions

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a new energy automobile part production and manufacturing friction stir welding equipment, comprising a transmission shaft, a first stirring assembly fixedly arranged on the transmission shaft, a second stirring assembly arranged at the bottom of the first stirring assembly, and a locking assembly arranged inside the second stirring assembly; the transmission shaft is used for providing kinetic energy for the first stirring assembly; the first stirring assembly is used for friction stir welding the upper surface of a workpiece; the second stirring assembly is used for friction stir welding the lower surface of the workpiece; and the locking assembly is used for adjusting the relative distance between the first stirring assembly and the second stirring assembly.

[0009] Preferably, the first stirring assembly comprises a connecting shaft fixedly arranged at the bottom end of the transmission shaft, an internal thread opened on the connecting shaft, a limiting portion arranged on one side inside the connecting shaft, and a first stirrer arranged at the end of the connecting shaft away from the transmission shaft.

[0010] Preferably, the limiting part comprises two groups of limiting sheets fixedly connected with the side wall inside the connecting shaft, a moving hole opened on the two groups of limiting sheets, a limiting column inserted into the moving hole, and a first spring arranged on the limiting column; wherein the other end of the first spring is fixedly connected with the left limiting sheet.

[0011] Preferably, the second stirring assembly comprises a rotating shaft and a second stirrer fixedly arranged at the bottom end of the rotating shaft.

[0012] Preferably, the rotating shaft comprises an external thread matched with the internal thread, a threaded groove opened at the middle end of the rotating shaft, a plurality of groups of limiting holes distributed in equidistant array from top to bottom in the threaded groove, a first movable cavity opened inside the rotating shaft, a sliding cavity in communication with the first movable cavity, and a second movable cavity connected with the sliding cavity.

[0013] Preferably, the rotating shaft further comprises two groups of isolation blocks arranged on the inner walls on both sides of the first movable cavity, respectively.

[0014] Preferably, the locking assembly comprises two groups of closing blocks arranged in the first movable cavity, an elastic column arranged between the two groups of closing blocks, and a plurality of groups of top columns arranged on one group of closing blocks.

[0015] Preferably, the diameter of the top column is smaller than the diameter of the limiting hole, and the number of the top columns is equal to the number of the limiting holes; the isolation block is located between the two groups of closing blocks.

[0016] Preferably, the locking assembly further comprises a sliding nail, a plurality of groups of second springs arranged on the sliding nail, two groups of sliding blocks arranged on both sides of the sliding nail, and a separation block arranged at the end of the sliding nail away from the second springs; wherein the separation block is composed of a rectangle and a trapezoid.

[0017] Preferably, the plurality of groups of second springs are all located in the second movable cavity, and the other ends of the plurality of groups of second springs are all fixedly connected with the inner wall of the second movable cavity; the two groups of sliding blocks are slidingly connected with the sliding cavity; the width of the isolation block is equal to the width of the upper base of the trapezoid on the separation block.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the present application provides a new energy automobile part production and manufacturing stirring friction welding equipment, which has the following beneficial effects:

[0020] 1. The new energy automobile part production and manufacturing friction stir welding equipment, through the structure design of the locking assembly, the relative distance between the first stirring assembly and the second stirring assembly can be adjusted flexibly. This design enables the equipment to be quickly adapted to different specifications of automobile parts, whether small parts or large structural parts, the upper surface and the lower surface can be welded at the same time, greatly improving the versatility and application range of the equipment, reducing the need to frequently replace welding equipment due to the replacement of different specifications of parts, reducing production cost and improving production efficiency.

[0021] 2. The new energy automobile part production and manufacturing friction stir welding equipment, through the structure design of inserting the limiting column into the limiting hole under the action of the first spring, the rotating shaft and the connecting shaft can be limited and locked, ensuring that the relative position between the first stirring assembly and the second stirring assembly remains stable during welding; the cooperation design of the jacking post and the limiting hole can emit a sound to remind the staff that the limiting column has reached the specified position during adjustment, further ensuring the accuracy of adjustment.

[0022] 3. The new energy automobile part production and manufacturing friction stir welding equipment, the adjustment of the distance between the first stirring assembly and the second stirring assembly and the automatic reset function of the locking assembly can be completed by pushing the sliding nail and rotating the rotating shaft, greatly shortening the preparation time and adjustment time of the equipment, reducing the production downtime caused by equipment adjustment, thereby significantly improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure diagram of the new energy automobile part production and manufacturing friction stir welding equipment is provided.

[0024] Figure 2 The first stirring assembly structure cutting diagram of the new energy automobile part production and manufacturing friction stir welding equipment is provided.

[0025] Figure 3 The enlarged schematic diagram of the structure at A of the new energy automobile part production and manufacturing friction stir welding equipment is provided.

[0026] Figure 4 The second stirring assembly structure diagram of the new energy automobile part production and manufacturing friction stir welding equipment is provided.

[0027] Figure 5 The second stirring assembly structure cutting diagram of the new energy automobile part production and manufacturing friction stir welding equipment is provided.

[0028] Figure 6A second stirring assembly structure cutting schematic view of the stirring friction welding equipment for new energy automobile part production and manufacturing is provided in the present application.

[0029] Figure 7 A second stirring assembly local structure schematic view of the stirring friction welding equipment for new energy automobile part production and manufacturing is provided in the present application.

[0030] In the figure: 1, transmission shaft; 2, first stirring assembly; 3, second stirring assembly; 4, locking assembly; 21, connecting shaft; 22, internal thread; 23, limiting part; 24, first stirrer; 231, limiting sheet; 232, moving hole; 233, limiting column; 234, first spring; 31, rotating shaft; 32, second stirrer; 311, external thread; 312, threaded groove; 313, limiting hole; 314, first movable cavity; 315, sliding cavity; 316, second movable cavity; 317, isolation block; 41, closing block; 42, elastic column; 43, jacking column; 44, sliding nail; 45, second spring; 46, sliding block; 47, separation block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1

[0033] Please refer to Figure 1 For the first embodiment of the present application, the embodiment provides a stirring friction welding equipment for new energy automobile part production and manufacturing, which can simultaneously friction weld the upper surface and the lower surface of automobile parts of different specifications.

[0034] Specifically, the equipment comprises: a transmission shaft 1, a first stirring assembly 2 fixedly arranged on the transmission shaft 1, a second stirring assembly 3 arranged at the bottom of the first stirring assembly 2, and a locking assembly 4 arranged inside the second stirring assembly.

[0035] Preferably, the transmission shaft 1 is used to provide kinetic energy for the first stirring assembly 2; the first stirring assembly 2 is used to friction weld the upper surface of a workpiece; the second stirring assembly 3 is used to friction weld the lower surface of the workpiece; and the locking assembly 4 is used to adjust the relative distance between the first stirring assembly and the second stirring assembly.

[0036] It should be noted that one end of the transmission shaft 1 is connected with the external driving mechanism, and when the transmission shaft 1 is driven and rotated by the external driving mechanism, the transmission shaft 1 can drive the first stirring assembly 2 to rotate.

[0037] In use, first, the relative distance between the first stirring assembly 2 and the second stirring assembly 3 is adjusted according to the specifications of the automobile parts, the locking component is pushed in the direction of the first stirring assembly 2 inside the second stirring assembly 3, and when it is pushed to the maximum limit, the limiting between the first stirring assembly 2 and the second stirring assembly 3 is released. Then, the locking assembly 4 is rotated again, and the locking assembly 4 drives the second stirring assembly 3 to rotate inside the first stirring assembly 2. At the same time that the first stirring assembly 2 rotates, the relative distance between the first stirring assembly 2 and the second stirring assembly 3 can be adjusted, and when the relative distance between the two is adjusted, the locking assembly 4 is loosened to automatically reset, and the first stirring assembly 2 and the second stirring assembly 3 are repositioned and locked. Finally, the external driving mechanism is started to drive the first stirring assembly 2 to rotate, and the first stirring assembly 2 drives the second stirring assembly 3 to rotate. Therefore, the upper surface and the lower surface of the automobile parts can be friction welded at the same time.

[0038] In summary, the new energy automobile part production and manufacturing stirring friction welding equipment can flexibly adjust the relative distance between the first stirring assembly and the second stirring assembly through the structural design of the locking assembly. This design allows the equipment to quickly adapt to different specifications of automobile parts, whether it is a small part or a large structure, and can achieve simultaneous welding of the upper surface and the lower surface, greatly improving the versatility and application range of the equipment, reducing the need to frequently replace welding equipment due to the replacement of different specifications of parts, reducing production costs, and improving production efficiency.

[0039] Embodiment 2

[0040] Reference Figure 1 - Figure 7 For the second embodiment of the present application, unlike the first embodiment, it further includes: the first stirring assembly 2 includes a connecting shaft 21 fixedly arranged at the bottom end of the transmission shaft 1, an internal thread 22 opened on the connecting shaft 21, a limiting part 23 arranged on one side inside the connecting shaft 21, and a first stirrer 24 arranged at the end of the connecting shaft 21 away from the transmission shaft 1.

[0041] Further, the limiting part 23 includes two groups of limiting pieces 231 fixedly connected with the side wall inside the connecting shaft 21, a moving hole 232 opened on the two groups of limiting pieces 231, a limiting column 233 insertedly arranged in the moving hole 232, and a first spring 234 arranged on the limiting column 233; wherein the other end of the first spring 234 is fixedly connected with the left limiting piece 231.

[0042] Further, the second stirring assembly 3 comprises a rotating shaft 31 and a second stirrer 32 fixedly arranged at the bottom end of the rotating shaft 31.

[0043] Preferably, the first stirring assembly 2, the second stirring assembly 3 and the locking assembly 4 are made of high-strength and high-hardness metal material, which can prevent the three from being damaged due to high pressure and high temperature during the friction welding of the automobile parts. The first stirrer 24 and the second stirrer 32 are respectively used for friction welding the upper surface and the lower surface of the automobile parts.

[0044] During the friction welding, the lower surface of the first stirrer 24 is in contact with the upper surface of the automobile parts, and the upper surface of the second stirrer 32 is in contact with the lower surface of the automobile parts.

[0045] Further, the rotating shaft 31 comprises an external thread 311 matched with the internal thread 22, a threaded groove 312 arranged at the middle end of the rotating shaft 31, a plurality of sets of limiting holes 313 arranged in an equidistant array from top to bottom in the threaded groove 312, a first movable cavity 314 arranged in the interior of the rotating shaft 31, a sliding cavity 315 in communication with the first movable cavity 314, and a second movable cavity 316 connected with the sliding cavity 315.

[0046] Further, the rotating shaft 31 further comprises two sets of isolation blocks 317 arranged on the inner walls on both sides of the first movable cavity 314.

[0047] In use, by rotating the rotating shaft 31, the rotating shaft 31 can move upward or downward in the connecting shaft 21, and thus the relative distance between the first stirrer 24 and the second stirrer 32 can be adjusted. By the design that the external thread 311 is matched with the internal thread 22, when the rotating shaft 31 rotates in the connecting shaft 21, not only stable rotation can be maintained, but also the rotating shaft 31 and the connecting shaft 21 can be preliminarily limited.

[0048] It should be noted that the reason why the first stirrer 24 and the second stirrer 32 can be stably maintained without falling off during the operation of the equipment is that the limiting column 233 is inserted into the limiting hole 313 under the action of the first spring 234, thereby limiting the rotating shaft 31 and the connecting shaft 21.

[0049] Further, the locking assembly 4 comprises two sets of closing blocks 41 arranged in the first movable cavity 314, an elastic column 42 arranged between the two sets of closing blocks 41, and a plurality of sets of top columns 43 arranged on one set of closing blocks 41.

[0050] Preferably, the top column 43 emits a sound when the end of the top column 43 away from the closing block 41 is in contact with the limiting column 233, thereby reminding the staff that the limiting column 233 is at the limiting hole 313 at this time.

[0051] Further, the diameter of the top column 43 is smaller than the diameter of the limiting hole 313, and the number of the top column 43 is equal to the number of the limiting hole 313; the isolation block 317 is located between the two groups of closing blocks 41.

[0052] Further, the locking assembly 4 further comprises a sliding nail 44, a plurality of groups of second springs 45 arranged on the sliding nail 44, two groups of sliding blocks 46 arranged on both sides of the sliding nail 44, and a separation block 47 arranged on the end of the sliding nail 44 away from the second spring 45; wherein the separation block 47 is composed of a rectangle and a trapezoid.

[0053] Preferably, the end of the sliding nail 44 close to the second stirrer 32 is provided with a cross groove, so as to facilitate the staff to insert a tool into the cross groove to rotate the sliding nail 44.

[0054] Further, the plurality of groups of second springs 45 are located in the second movable cavity 316, and the other end of the plurality of groups of second springs 45 is fixedly connected with the inner wall of the second movable cavity 316; the two groups of sliding blocks 46 are slidingly connected with the sliding cavity 315; the width of the isolation block 317 is equal to the width of the upper base of the trapezoid on the separation block 47.

[0055] In use, the sliding nail 44 is pushed in the direction of the first stirrer 24 in the second movable cavity 316, the second spring 45 is compressed in the second movable cavity 316, the sliding nail 44 continues to move in the sliding cavity 315 through the sliding block 46, and the separation block 47 gradually approaches the middle of the two sets of closing blocks 41 and contacts under the driving of the sliding nail 44. At this time, the inclined surfaces on both sides of the separation block 47 contact the side surfaces of the two sets of closing blocks 41, and the two sets of closing blocks 41 gradually move away from each other. When the sliding block 46 moves to the top of the sliding cavity 315, the side surfaces of the two sets of closing blocks 41 contact the vertical surface of the separation block 47, and the limiting column 233 is pushed out into the limiting hole 313 by the limiting column 43 under the action of the closing block 41. At this time, the limiting between the connecting shaft 21 and the rotating shaft 31 is released, and the rotating shaft 31 can rotate in the connecting shaft 21. When the rotating shaft 31 rotates, the limiting column 233 is always in the threaded groove 312. Each set of limiting holes 313 on the threaded groove 312 corresponds to different relative distances between the first stirrer 24 and the second stirrer 32, and when the limiting column 233 contacts the limiting column 43, a sound is emitted to remind the staff that the limiting column 233 is located at the limiting hole 313 at this time. Finally, the sliding nail 44 is loosened, and the sliding nail 44 is automatically reset under the action of the second spring 45, the separation block 47 no longer contacts the two sets of closing blocks 41, the two sets of closing blocks 41 automatically approach the isolation block 317 and contact the isolation block 317 under the action of the elastic column 42, the limiting column 233 is inserted into the limiting hole 313 under the action of the first spring 234, and the limiting of the connecting shaft 21 to the rotating shaft 31 is completed.

[0056] It should also be noted that when the two sets of closing blocks 41 contact the side surfaces of the isolation block 317 respectively, the distance between the two sets of closing blocks 41 is equal to the width of the isolation block 317. The advantage of this design is that it facilitates the movement of the separation block 47 between the two sets of closing blocks 41, and prepares for the subsequent release of the limiting of the connecting shaft 21 and the rotating shaft 31.

[0057] Working principle: first, according to the size of the automobile parts adjust the relative distance between the first stirring assembly 2 and the second stirring assembly 3, the locking component in the second stirring assembly 3 to the first stirring assembly 2 direction, when the maximum limit is removed between the first stirring assembly 2 and the second stirring assembly 3 two groups of limit. Then, turn the locking assembly 4, the locking assembly 4 drive the second stirring assembly 3 in the first stirring assembly 2 inside rotation. While the first stirring assembly 2 rotates, the relative distance between the first stirring assembly 2 and the second stirring assembly 3 can be adjusted, when the relative distance between the two is adjusted, the locking assembly 4 is loosened to make it reset automatically, the first stirring assembly 2 and the second stirring assembly 3 between the repositioning locking. Finally, start the external drive mechanism to drive the first stirring assembly 2 to rotate, the first stirring assembly 2 drive the second stirring assembly 3 rotation. Therefore, the upper surface and the lower surface of the automobile parts can be friction welded at the same time.

[0058] In summary, the new energy automobile parts production and manufacturing of friction stir welding equipment, through the structure design of the limiting column inserted into the limiting hole under the action of the first spring, can limit the locking of the rotating shaft and the connecting shaft, ensure the relative position between the first stirring assembly and the second stirring assembly during welding process. The cooperation design of the jacking post and the limiting hole can remind the staff that the limiting column has reached the specified position during the adjustment process, further ensuring the accuracy of the adjustment. Through the pushing of the sliding nail and the rotation of the rotating shaft, the distance between the first stirring assembly and the second stirring assembly can be adjusted and the automatic reset function of the locking assembly can be completed, which greatly shortens the preparation time and adjustment time of the equipment, reduces the production stop caused by equipment adjustment, and significantly improves the production efficiency.

[0059] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the sentence "including a…" does not exclude the existence of other identical elements in the process, method, article or equipment including the element.

Claims

1. A new energy automobile component production and manufacturing friction stir welding equipment, comprising a transmission shaft (1), characterized in that: The transmission shaft (1) is provided with a first stirring assembly (2), and the bottom of the first stirring assembly (2) is provided with a second stirring assembly (3), and the inside of the second stirring assembly is provided with a locking assembly (4); The transmission shaft (1) is used for providing kinetic energy for the first stirring assembly (2); The first stirring assembly (2) is used for friction welding the upper surface of the workpiece; The second stirring assembly (3) is used for friction welding the lower surface of the workpiece; The locking assembly (4) is used for adjusting the relative distance between the first stirring assembly and the second stirring assembly.

2. The friction stir welding equipment for new energy vehicle component production and manufacturing according to claim 1, characterized in that: The first stirring assembly (2) comprises a connecting shaft (21) fixedly arranged at the bottom end of the transmission shaft (1), an internal thread (22) opened on the connecting shaft (21), a limiting portion (23) arranged on one side of the inside of the connecting shaft (21), and a first stirrer (24) arranged at the end of the connecting shaft (21) away from the transmission shaft (1).

3. The friction stir welding equipment for new energy vehicle component production and manufacturing according to claim 2, characterized in that: The limiting portion (23) comprises two groups of limiting sheets (231) fixedly connected with the side wall inside the connecting shaft (21), a moving hole (232) opened on the two groups of limiting sheets (231), a limiting column (233) insertedly arranged in the moving hole (232), and a first spring (234) arranged on the limiting column (233). Wherein, the other end of the first spring (234) is fixedly connected with the left limiting sheet (231).

4. The friction stir welding equipment for new energy vehicle component production and manufacturing according to claim 3, characterized in that: The second stirring assembly (3) comprises a rotating shaft (31) and a second stirrer (32) fixedly arranged at the bottom end of the rotating shaft (31).

5. The friction stir welding equipment for new energy vehicle component production and manufacturing according to claim 4, characterized in that: The rotating shaft (31) comprises an external thread (311) matched with the internal thread (22), a threaded groove (312) opened at the middle end of the rotating shaft (31), a plurality of groups of limiting holes (313) equidistantly arranged from top to bottom in the threaded groove (312), a first movable cavity (314) opened in the inside of the rotating shaft (31), a sliding cavity (315) communicated with the first movable cavity (314), and a second movable cavity (316) connected with the sliding cavity (315).

6. The friction stir welding apparatus for new energy vehicle component manufacturing according to claim 5, characterized in that: The rotating shaft (31) further comprises two groups of isolation blocks (317) respectively arranged on the inner walls on both sides of the first movable cavity (314).

7. The friction stir welding apparatus for new energy vehicle component manufacturing according to claim 6, characterized in that: The locking assembly (4) comprises two groups of closing blocks (41) arranged in the first movable cavity (314), an elastic column (42) arranged between the two groups of closing blocks (41), and a plurality of groups of jacks (43) arranged on one group of closing blocks (41). 8.The new energy automobile component manufacturing friction stir welding equipment according to claim 7, characterized in that: The diameter of the jack (43) is smaller than the diameter of the limiting hole (313), and the number of the jacks (43) is equal to the number of the limiting holes (313); the isolation blocks (317) are located between the two groups of closing blocks (41).

9. The friction stir welding apparatus for new energy vehicle component manufacturing according to claim 8, characterized in that: The locking assembly (4) further comprises a sliding pin (44), a plurality of second springs (45) arranged on the sliding pin (44), two groups of sliding blocks (46) arranged on both sides of the sliding pin (44) respectively, and a separation block (47) arranged at an end of the sliding pin (44) away from the second springs (45). The separation block (47) is composed of a rectangle and a trapezoid.

10. The friction stir welding apparatus for producing a new energy automobile component according to claim 9, characterized in that: The plurality of second springs (45) are located in the second movable cavity (316), and the other ends of the plurality of second springs (45) are fixedly connected with the inner wall of the second movable cavity (316); the two groups of sliding blocks (46) are slidingly connected with the sliding cavity (315); and the width of the separation block (317) is equal to the upper base width of the trapezoid on the separation block (47).

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