Annular elastic part assembling device and welding method

Abstract

The invention aims at disclosing an annular elastic part assembling device and a welding method, and relates to the technical field of 3C electronic product assembling, and the annular elastic part assembling device comprises a carrier assembly, an expansion assembly and a flaring assembly; the carrier assembly carries an annular shell and an annular elastic piece, and the annular elastic piece is provided with an opening part keeping a first length; the expansion assembly comprises a fixed disc and a rotating disc, the fixed disc is provided with an annular cavity, a plurality of sliding ways are arranged along the inner side of the annular cavity, the rotating disc is embedded into the annular cavity, a plurality of arc-shaped grooves are formed along the inner side of the rotating disc, each sliding way is provided with a sliding block matched with the sliding way, and the first end of each sliding block is provided with an arc-shaped protrusion. The flaring assembly comprises a first flaring rod and a second flaring rod, and the flaring assembly has the technical effects that the opening part with the first length is flaring to the second length, then all parts of the flaring annular elastic piece are synchronously pressed on the inner wall of the annular shell, and finally the annular elastic piece in the pressed state is welded to the inner wall of the annular shell; and the welding precision and uniformity are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3C electronic product assembly, and in particular to an assembly device and welding method for annular elastic parts. Background Art

[0002] With the development of society and the progress of science, automation equipment in industries such as new energy, 3C, and semiconductors has become increasingly common. When welding between two annular or quasi-annular parts, the synchronous fixation of the annular product in all directions is a technical problem that needs to be solved.

[0003] In view of this, it is necessary to develop an assembly device and welding method for annular elastic parts. Summary of the Invention

[0004] To solve the above technical problems, the object of the present invention is to disclose an assembly device and welding method for annular elastic parts.

[0005] To achieve the first object of the invention, the present invention provides an assembly device for annular elastic parts, including a carrier assembly, an expansion assembly, and a flaring assembly;

[0006] The carrier assembly carries an annular housing and an annular elastic part pre-installed on the inner wall of the annular housing, and the annular elastic part has an opening part that maintains a first length;

[0007] The expansion assembly includes a fixed disk and a rotating disk. The fixed disk is provided with an annular cavity, and a plurality of sliding channels are arranged along the inner side of the annular cavity. The rotating disk is embedded in the annular cavity, and a plurality of arc-shaped grooves are arranged along the inner side of the rotating disk. A slider matching with the sliding channel is arranged in each sliding channel. A first end of the slider is provided with an arc-shaped protrusion, and a first elastic element and a second elastic element symmetrically arranged on both sides of the arc-shaped protrusion. A second end of the slider is provided with a hook body, and the arc-shaped protrusion and the arc-shaped groove are arranged in a matching manner;

[0008] The flaring assembly includes a first flaring rod and a second flaring rod. The end of the first flaring rod and the end of the second flaring rod respectively abut against both ends of the opening part and move away from each other, and the opening part is expanded to a second length;

[0009] Rotate the rotating disk so that a plurality of the arc-shaped protrusions synchronously move to a plurality of arc-shaped grooves, and a plurality of the hook bodies press the flared annular elastic part against the inner wall of the annular housing.

[0010] Preferably, the flaring assembly further includes a horizontal bracket, a first cylinder, a T-shaped push block, a first moving block and a second moving block driven by the T-shaped push block, a third moving block and a fourth sliding block arranged on a first slide rail;

[0011] The first flaring rod is installed on the first moving block, and the second flaring rod is installed on the second moving block;

[0012] The first cylinder is installed on the first surface of the horizontal bracket. A first slide rail is installed on the second surface of the horizontal bracket, and the third moving block and the fourth moving block move along the first slide rail;

[0013] A second slide rail is installed above the third moving block, and the first moving block moves along the second slide rail. A third slide rail is installed above the fourth moving block, and the second moving block moves along the third slide rail.

[0014] Preferably, the first slide rail and the second slide rail are perpendicular, and the second slide rail and the third slide rail are parallel.

[0015] Preferably, a push rod is arranged in the middle of the T-shaped push block, and a circular protrusion is arranged at the end of the push rod;

[0016] A first guide rod and a second guide rod are respectively arranged on both sides of the push rod. The first guide rod is sleeved with a first spring, and the second guide rod is sleeved with a second spring.

[0017] Preferably, a first push block is arranged at the end of the first guide rod, and first balls are arranged on the surface of the first push block;

[0018] A second push block is arranged at the end of the second guide rod, and second balls are arranged on the surface of the second push block.

[0019] Preferably, a first fixing block is installed above the third moving block, and a third guide post and a third spring are arranged between the first moving block and the first fixing block;

[0020] A second fixing block is installed above the fourth moving block, and a fourth guide post and a fourth spring are arranged between the second moving block and the second fixing block;

[0021] A first arc surface is arranged at the corner of the first moving block, and a second arc surface is arranged at the corner of the second moving block;

[0022] The circular protrusion is aligned with the channel formed by the first arc surface and the second arc surface.

[0023] Preferably, a third fixing block is installed on the side of the third moving block, and a fifth guide post and a fifth spring are arranged between the third moving block and the third fixing block;

[0024] A fourth fixing block is installed on the side of the fourth moving block, and a sixth guide post and a sixth spring are arranged between the fourth moving block and the fourth fixing block.

[0025] Preferably, a plurality of the slideways are arranged in a ring shape or a quasi-ring shape, and a plurality of the hook bodies are arranged in a ring shape or a quasi-ring shape;

[0026] The slideway is provided with a first step, and the slider is provided with a second step;

[0027] Two ends of the first elastic element respectively abut against the second step and the inner side of the rotating disc, and two ends of the second elastic element respectively abut against the second step and the inner side of the rotating disc.

[0028] Preferably, two waist-shaped holes are symmetrically arranged on the outer side of the annular cavity;

[0029] A first lug and a second lug are symmetrically arranged on the outer side of the rotating disc. The first lug passes through the waist-shaped hole and is exposed on one side of the fixed disc, and the second lug passes through the waist-shaped hole and is exposed on the other side of the fixed disc;

[0030] When the rotating disc rotates to a first predetermined position, a plurality of the arc-shaped protrusions synchronously disengage from a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously contract inwardly close to the center of the rotating disc;

[0031] When the rotating disc rotates to a second predetermined position, a plurality of the arc-shaped protrusions synchronously enter a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously expand away from the center of the rotating disc;

[0032] A hollow portion is arranged between two hook bodies located on the same slider.

[0033] Based on the same inventive principle, to achieve the above first inventive purpose, the present invention provides a welding method for an annular elastic member, which adopts the annular elastic member assembling device described in the first invention, and includes the following steps:

[0034] The annular housing is fixed to the carrier assembly, and the annular elastic member is pre-placed in the annular housing;

[0035] The flaring assembly clamps the expanding assembly and combines it with the carrier assembly;

[0036] The first flaring rod and the second flaring rod approach and expand the opening;

[0037] The rotating disc rotates, a plurality of the arc-shaped protrusions synchronously enter a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously expand the annular elastic member away from the center of the rotating disc, and each direction of the annular elastic member is synchronously pressed against the inner wall of the annular housing;

[0038] The flaring assembly disengages from and moves away from the expanding assembly;

[0039] The carrier assembly carries the expanding assembly and walks to the welding station together for laser welding.

[0040] Compared with the prior art, the technical effects of the present invention are as follows:

[0041] The object of the present invention is to first flare the opening part of the first length to the second length, then synchronously press each part of the flared annular elastic member against the inner wall of the annular housing, and finally weld the annular elastic member in the pressed state to the inner wall of the annular housing, improving the welding accuracy and uniformity. Brief Description of the Drawings

[0042] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic diagram of the disengaged state of the annular elastic member assembly device of the present invention.

[0044] Figures 2(a) to 2(d) It is a schematic diagram of the process of assembling the annular elastic member.

[0045] Figure 3 It is a schematic diagram of the combined state of the annular elastic member assembly device of the present invention.

[0046] Figure 4 It is a three-dimensional structural schematic diagram of the flaring assembly of the present invention.

[0047] Figure 5 It is a three-dimensional structural schematic diagram of the flaring assembly of the present invention.

[0048] Figure 6 It is a three-dimensional structural schematic diagram of the flaring assembly of the present invention.

[0049] Figure 7 It is a three-dimensional structural schematic diagram of the carrier assembly of the present invention.

[0050] Figure 8 It is a three-dimensional structural schematic diagram of the expansion assembly of the present invention.

[0051] Figure 9 It is a three-dimensional structural schematic diagram of the expansion assembly of the present invention.

[0052] Figure 10 It is a three-dimensional structural schematic diagram of the rotating disk and the slider of the present invention.

[0053] Figure 11 It is a three-dimensional structural schematic diagram of the fixed disk of the present invention.

[0054] Figure 12 It is a three-dimensional structural schematic diagram of the expansion assembly of the present invention.

[0055] Figure 13 It is a schematic flowchart of the welding method of the annular elastic member of the present invention.

[0056] Among them, 1. Carrier assembly; 11. Annular housing; 12. Annular elastic member; 121. Opening; 13. Fourth slide rail; 14. Fifth slide rail; 15. First L-shaped lever; 16. Second L-shaped lever; 2. Expansion assembly; 21. Fixed disk; 211. First hanging ear; 212. Second hanging ear; 22. Rotating disk; 221. Arc groove; 222. First ear; 223. Second ear; 23. Annular cavity; 231. Arc waist hole; 232. Waist hole; 24. Slideway; 241. First step; 25. Slide block; 251. Arc protrusion; 252. First elastic element; 253. Second elastic element; 254. Hook body; 255. Second end; 256. Second step; 257. Hollow part; 258. Protruding part; 3. Flaring assembly; 31. First flaring rod; 311. Second flaring rod; 32. Horizontal bracket; 321. First surface; 322. Second surface; 323. First finger; 324. Second finger; 33. First cylinder; 34. T-shaped push block; 341. Push rod; 3411. Circular protrusion; 342. First guide rod; 343. Second guide rod; 344. First spring; 345. Second spring; 346. First push block; 347. First ball; 348. Second push block; 349. Second ball; 35. First moving block; 351. Third guide post; 352. Third spring; 353. First arc surface; 36. Second moving block; 361. Fourth guide post; 362. Fourth spring; 363. First arc surface; 37. First slide rail; 38. Third moving block; 381. Second slide rail; 382. First fixed block; 383. Third fixed block; 384. Fifth guide post; 385. Fifth spring; 39. Fourth sliding block; 391. Third slide rail; 392. Second fixed block; 393. Fourth fixed block; 394. Sixth guide post; 395. Sixth spring; 4. Channel. Specific embodiments

[0057] The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. It should be noted, however, that these embodiments are not limitations of the present invention, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art according to these embodiments shall fall within the protection scope of the present invention.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0059] Embodiment 1

[0060] Refer Figures 1 to 12 As shown, this embodiment discloses a specific implementation manner of an annular elastic member assembling device.

[0061] The annular elastic member assembling device, refer Figures 1 to 12 As shown, it includes a carrier assembly 1, an expansion assembly 2 and a flaring assembly 3; the carrier assembly 1 carries an annular housing 11 and an annular elastic member 12 pre-installed on the inner wall of the annular housing 11, and the annular elastic member 12 has an opening 121 that maintains a first length; the expansion assembly 2 includes a fixed disk 21 and a rotating disk 22, the fixed disk 21 is provided with an annular cavity 23, and a plurality of slideways 24 are arranged along the inner side of the annular cavity 23, the rotating disk 22 is embedded in the annular cavity 23, and a plurality of arc-shaped grooves 221 are arranged along the inner side of the rotating disk 22. A slider 25 is arranged in each slideway 24 and is matched with the slideway 24. The first end of the slider 25 is provided with an arc-shaped protrusion 251 and a first elastic element 252 and a second elastic element 253 symmetrically arranged on both sides of the arc-shaped protrusion 251. The second end of the slider 25 is provided with a hook body 254, and the arc-shaped protrusion 251 and the arc-shaped groove 221 are arranged in cooperation; the flaring assembly 3 includes a first flaring rod 31 and a second flaring rod 311. The ends of the first flaring rod 31 and the second flaring rod 311 respectively abut against both ends of the opening 121 and move away from each other, and the opening 121 is expanded to a second length; the rotating disk 22 is rotated to synchronously move a plurality of the arc-shaped protrusions 251 into a plurality of arc-shaped grooves 221, and a plurality of the hook bodies 254 press the flared annular elastic member 12 against the inner wall of the annular housing 11.

[0062] Specifically, referring to Figures 2(a) to 2(d) , the purpose of this embodiment is to first expand the opening 121 with the first length to the second length, then synchronously press each part of the flared annular elastic member 12 against the inner wall of the annular housing 11, and finally weld the annular elastic member 12 in the pressed state to the inner wall of the annular housing 11 to ensure welding accuracy and uniformity and prevent false welding.

[0063] See Figure 3 and Figure 7 As shown in Figure 3 and Figure 7 , fourth slide rails 13 and fifth slide rails 14 are respectively arranged on both sides of the vehicle component 1. The first L-shaped lever 15 moves along the fourth slide rail 13, and the second L-shaped lever 16 moves along the fifth slide rail 14. The first L-shaped lever 15 and the second L-shaped lever 16 are arranged oppositely. Wherein, the first L-shaped lever 15 toggles the first lug 222 during the movement, and the second L-shaped lever 16 toggles the second lug 223 during the movement.

[0064] See Figure 1 、 Figures 3 to 6, the flaring assembly 3 is composed of the following: The flaring assembly 3 further includes a horizontal bracket 32, a first cylinder 33, a T-shaped push block 34, a first moving block 35 and a second moving block 36 driven by the T-shaped push block 34, a third moving block 38 and a fourth sliding block 39 arranged on a first slide rail 37; the first flaring rod 31 is installed on the first moving block 35, the second flaring rod 311 is installed on the second moving block 36, both the first flaring rod 31 and the second flaring rod 311 are L-shaped and both have flat ends; the first cylinder 33 is installed on the first surface 321 of the horizontal bracket 32, a first slide rail 37 is installed on the second surface 322 of the horizontal bracket 32, and the third moving block 38 and the fourth moving block 39 move along the first slide rail 37; a second slide rail 381 is installed above the third moving block 38, and the first moving block 35 moves along the second slide rail 381, a third slide rail 391 is installed above the fourth moving block 39, and the second moving block 36 moves along the third slide rail 391; the first slide rail 37 and the second slide rail 381 are perpendicular, and the second slide rail 381 and the third slide rail 391 are parallel; a push rod 341 is arranged in the middle of the T-shaped push block 34, and a circular protrusion 3411 is arranged at the end of the push rod 341; a first guide rod 342 and a second guide rod 343 are respectively arranged on both sides of the push rod 341, the first guide rod 342 is sleeved with a first spring 344, and the second guide rod 342 is sleeved with a second spring 345; a first push block 346 is arranged at the end of the first guide rod 342, and a first ball 347 is arranged on the surface of the first push block 346; a second push block 348 is arranged at the end of the second guide rod 342, and a second ball 349 is arranged on the surface of the second push block 348; a first fixing block 382 is installed above the third moving block 38, and a third guide post 351 and a third spring 352 are arranged between the first moving block 35 and the first fixing block 382; a second fixing block 392 is installed above the fourth moving block 39, and a fourth guide post 361 and a fourth spring 362 are arranged between the second moving block 36 and the second fixing block 392; a first arc surface 353 is arranged at the corner of the first moving block 35, and a second arc surface 363 is arranged at the corner of the second moving block 36; the circular protrusion 3411 is aligned with the channel 4 formed by the first arc surface 353 and the second arc surface 363; a third fixing block 383 is installed on the side of the third moving block 38, and a fifth guide post 384 and a fifth spring 385 are arranged between the third moving block 38 and the third fixing block 383; a fourth fixing block 393 is installed on the side of the fourth moving block 39, and a sixth guide post 394 and a sixth spring 395 are arranged between the fourth moving block 39 and the fourth fixing block 393;On both sides of the flaring component, a first clamping finger 323 and a second clamping finger 324 are respectively arranged. On both sides of the fixed disk 21, a first hanging ear 211 and a second hanging ear 212 are respectively arranged. The first clamping finger 323 clamps or releases the first hanging ear 211, and the second clamping finger 324 clamps or releases the second hanging ear 212.;

[0065] See Figure 1 、 Figures 3 to 6 The working principle of the flaring component 3 is as follows: The purpose of the flaring component 3 is to drive the expansion component 2 to be combined with the carrier component 1 or to be separated from the carrier component 1, and to complete the approach and expansion of the first flaring rod 31 and the second flaring rod 311 to the opening 121 when the flaring component 3, the expansion component 2 and the carrier component 1 are combined. The process of the first flaring rod 31 and the second flaring rod 311 approaching and expanding the opening 121 is as follows: Under the action of the fifth spring 385 and the sixth spring 395, the channel 4 between the third moving block 38 and the fourth moving block 39 is in a relatively narrow state. At this time, the horizontal distance between the first flaring rod 31 and the second flaring rod 311 is also relatively close and adapted to the first length. The first cylinder 33 pushes the first moving block 35 and the second moving block 36 forward through the T-shaped push block 34, and the first flaring rod 31 and the second flaring rod 311 also move forward accordingly. When the end parts of the first flaring rod 31 and the second flaring rod 311 respectively abut against the inner wall of the annular housing 11 and simultaneously abut against both ends of the opening 121, the first flaring rod 31 and the second flaring rod 311 can no longer move forward. As the first cylinder 33 further moves forward, on the one hand, while the first spring 344, the second spring 345, the third spring 352 and the fourth spring 362 are compressed, the circular protrusion 3411 starts to contact and drive the channel 4 to become wider through the first arc surface 353 and the second arc surface 363. When the channel 4 becomes wider, the third moving block 38 compresses the fifth spring 385 and simultaneously drives the first flaring rod 31 to flare, and the fourth moving block 39 compresses the sixth spring 395 and simultaneously drives the second flaring rod 311 to flare, so as to open the opening 121 to the second length. During the movement of the third moving block 38 and the fourth moving block 39 along the first slide rail 37, the first ball 347 and the second ball 349 play a lubricating role and reduce friction.

[0066] See Figure 1 、 Figures 8 to 12, the working principle of the expansion component 2 is as follows: The purpose of the expansion component 2 is to synchronously press each part of the annular elastic member 12 with the opening 121 at the second length against the inner wall of the annular housing 11. The annular elastic member 12 is a thin sheet component with a certain elasticity. A plurality of the slideways 24 are arranged in a ring or a quasi-ring shape, and a plurality of the sliders 25 are also arranged in a ring or a quasi-ring shape. The second end 255 of the slider 25 is located outside the slideway 24. The second end 255 is a profiling structure. A plurality of the second ends 255 can form a ring similar to the annular elastic member 12. A hook body 254 is provided at the bottom of the second end 255, and a protruding portion 258 facing the annular elastic member 12 is provided at the end of each hook body 254. A plurality of the hook bodies 254 are arranged in a ring or a quasi-ring shape; a first step 241 is provided on the slideway 24, and a second step 256 is provided on the slider 25. Two ends of the first elastic element 252 respectively abut against the second step 256 and the inner side of the rotating disk 22, and two ends of the second elastic element 253 respectively abut against the second step 256 and the inner side of the rotating disk 22; a plurality of arc-shaped waist holes 231 are provided at the bottom of the annular cavity 23, and a plurality of limiting columns (not shown due to occlusion) are provided at the bottom of the rotating disk 22. The limiting columns and the arc-shaped waist holes 231 are arranged in cooperation; two waist holes 232 are symmetrically provided on the outer side of the annular cavity 23, and a first ear 222 and a second ear 223 are symmetrically provided on the outer side of the rotating disk 22. The first ear 222 passes through the waist hole 232 and is exposed on one side of the fixed disk 21, and the second ear 223 passes through the waist hole 232 and is exposed on the other side of the fixed disk 21; a hollow portion 257 is provided between two hook bodies 254 of the same slider 25. A plurality of welding points are provided between the annular elastic member 12 and the annular housing 11. The annular elastic member 12 is welded to the inner wall of the annular housing 11 by aligning the welding points through the hollow portion 257.

[0067] See Figure 1 , Figures 8 to 12 , the process of pressing and welding the annular elastic member 12 to the inner wall of the annular housing 11 is as follows: First step, the annular housing 11 is fixed to the carrier assembly 1, and the annular elastic member 12 is pre-placed in the annular housing 11; Second step, the first finger 323 and the second finger 324 of the flaring assembly 3 respectively clamp the first ear 211 and the second ear 212 on both sides of the fixed disk 21, and combine the expansion component 2 to the carrier assembly 1; Third step, start the first cylinder 33 to make the first flaring rod 31 and the second flaring rod 311 approach and expand the opening 121; Fourth step, the initial state of the rotating disk 22 is in the first predetermined position. For details, see Figures 9 to 10Schematic diagram, a number of the arc-shaped protrusions 251 synchronously disengage from a number of the arc-shaped grooves 221, the arc-shaped protrusions 251 are pushed and approach the center of the rotating disk 22, a number of the hook bodies 254 synchronously retract while approaching the center of the rotating disk 22. At this time, a number of the hook bodies 254 are arranged in a smaller ring shape, and each hook body 254 maintains a certain distance from the inner wall of the annular elastic member 12; the first L-shaped lever 15 drives the rotating disk 22 to rotate through the first ear 222, and the rotating disk 22 rotates to the second predetermined position. For details, see Figure 12 Schematic diagram, a number of the arc-shaped protrusions 251 synchronously enter a number of the arc-shaped grooves 221, a number of the hook bodies 254 synchronously expand while moving away from the center of the rotating disk 22. At this time, the second ear 223 contacts the second L-shaped lever 16; Step 5, the first finger 323 releases the first hanging ear 211, the second finger 324 releases the second hanging ear 212, and the flaring assembly 3 disengages and moves away from the expanding assembly 2; Step 5, the carrier assembly 1 carries the expanding assembly 2 and walks to the welding station together, such as a laser welding station, aligns the welding point through the hollow portion 257 and welds the annular elastic member 12 to the inner wall of the annular housing 11 to complete the welding; Step 6, the second L-shaped lever 16 drives the rotating disk 22 to rotate back through the second ear 223, so that the rotating disk 22 rotates back to the first predetermined position, and the flaring assembly 3 clamps the expanding assembly 2 through the first finger 323 and the second finger 324 and combines it with the next carrier assembly 1. Through the cycle of the above steps 1 to 6, the annular elastic member 12 is automatically and precisely welded to the inner wall of the annular housing 11. In the case of pressing in all directions, virtual welding is effectively avoided.

[0068] The purpose of this embodiment is to first flare the opening portion 121 of the first length to the second length, then synchronously press each part of the flared annular elastic member 12 against the inner wall of the annular housing 11, and finally weld the annular elastic member 12 in the pressed state to the inner wall of the annular housing 11, improving the welding accuracy and uniformity.

[0069] Embodiment 2

[0070] Refer to Figure 13 As shown, this embodiment discloses a specific implementation manner of a welding method for an annular elastic member.

[0071] Welding method for an annular elastic member, refer to Figures 1 to 13 As shown, using the annular elastic member assembling device described in Embodiment 1, it includes the following steps:

[0072] Step S1: The annular housing 11 is fixed to the carrier assembly 1, and the annular elastic member 12 is pre-placed inside the annular housing 11;

[0073] Step S2: The flaring assembly 3 clamps the expanding assembly 2 and combines it with the carrier assembly 1; specifically, the first finger 323 and the second finger 324 of the flaring assembly 3 respectively clamp the first lug 211 and the second lug 212 on both sides of the fixed disk 21, and combine the expanding assembly 2 with the carrier assembly 1.

[0074] Step S3: The first flaring rod 31 and the second flaring rod 311 approach and expand the opening 121; specifically, under the push of the first cylinder 33, the first flaring rod 31 and the second flaring rod 311 first abut against the inner wall of the annular housing 11 and then expand towards both sides, so that the opening 121 is expanded to the second length.

[0075] Step S4: The rotating disk 22 rotates, and a plurality of the arc-shaped protrusions 251 synchronously enter a plurality of the arc-shaped grooves 221, and a plurality of the hook bodies 254 synchronously move away from the center of the rotating disk 22 to expand the annular elastic member 12, and each direction of the annular elastic member 12 is synchronously pressed against the inner wall of the annular housing 11;

[0076] Step S5: The flaring assembly 3 disengages from and moves away from the expanding assembly 2; specifically, the first finger 323 releases the first lug 211, the second finger 324 releases the second lug 212, and the flaring assembly 3 disengages from and moves away from the expanding assembly 2.

[0077] Step S6: The carrier assembly 1 carries the expanding assembly 2 and walks to the welding station together for laser welding. Specifically, the annular elastic member 12 is welded to the inner wall of the annular housing 11 by aligning the welding point through the hollow portion 257.

[0078] The annular elastic member assembling device described in Embodiment 2 adopts that of Embodiment 1. For the same parts as those in Embodiment 1, please refer to Embodiment 1 and will not be elaborated here.

Claims

1. Ring-shaped elastic member assembly device, characterized in that, It includes a vehicle component, an expansion component and a flaring component; The vehicle component carries a ring-shaped housing and a ring-shaped elastic member pre-installed on the inner wall of the ring-shaped housing. The ring-shaped elastic member has an opening portion that maintains a first length; The expansion component includes a fixed disk and a rotating disk. The fixed disk is provided with a ring-shaped cavity, and several sliding grooves are arranged along the inner side of the ring-shaped cavity. The rotating disk is embedded in the ring-shaped cavity, and several arc-shaped grooves are arranged along the inner side of the rotating disk. A slider matching the sliding groove is arranged in each sliding groove. A first end of the slider is provided with an arc-shaped protrusion, and a first elastic element and a second elastic element symmetrically arranged on both sides of the arc-shaped protrusion. A second end of the slider is provided with a hook body, and the arc-shaped protrusion and the arc-shaped groove are cooperatively arranged; The flaring component includes a first flaring rod and a second flaring rod. The end portions of the first flaring rod and the second flaring rod respectively abut against both ends of the opening portion and move away from each other, and the opening portion is expanded to a second length; Rotate the rotating disk so that several arc-shaped protrusions synchronously move to several arc-shaped grooves, and several hook bodies press the flared ring-shaped elastic member against the inner wall of the ring-shaped housing.

2. The annular elastic member assembling device according to claim 1, wherein, The flaring component further includes a horizontal bracket, a first cylinder, a T-shaped push block, a first moving block and a second moving block driven by the T-shaped push block, a third moving block and a fourth sliding block arranged on a first slide rail; The first flaring rod is installed on the first moving block, and the second flaring rod is installed on the second moving block; The first cylinder is installed on a first surface of the horizontal bracket, a first slide rail is installed on a second surface of the horizontal bracket, and the third moving block and the fourth moving block move along the first slide rail; A second slide rail is installed above the third moving block, and the first moving block moves along the second slide rail. A third slide rail is installed above the fourth moving block, and the second moving block moves along the third slide rail.

3. The annular elastic member assembling device according to claim 2, characterized in that The first slide rail and the second slide rail are perpendicular, and the second slide rail and the third slide rail are parallel.

4. The annular elastic member assembling device according to claim 2, wherein, A push rod is arranged in the middle of the T-shaped push block, and a circular protruding portion is arranged at the end of the push rod; A first guide rod and a second guide rod are respectively arranged on both sides of the push rod. The first guide rod is sleeved with a first spring, and the second guide rod is sleeved with a second spring.

5. The annular elastic member assembling device according to claim 4, wherein, A first push block is arranged at the end of the first guide rod, and a first ball is arranged on the surface of the first push block; A second push block is arranged at the end of the second guide rod, and a second ball is arranged on the surface of the second push block; 6. The annular elastic member assembling device according to claim 5, wherein A first fixed block is installed above the third moving block, and a third guide post and a third spring are arranged between the first moving block and the first fixed block; A second fixed block is installed above the fourth moving block, and a fourth guide post and a fourth spring are arranged between the second moving block and the second fixed block; A first arc-shaped surface is arranged at a corner of the first moving block, and a second arc-shaped surface is arranged at a corner of the second moving block; The circular protruding portion is aligned with a channel formed by the first arc-shaped surface and the second arc-shaped surface.

7. The annular elastic member assembling device according to claim 6, wherein, A third fixed block is installed on the side of the third moving block, and a fifth guide post and a fifth spring are arranged between the third moving block and the third fixed block; A fourth fixing block is installed on the side of the fourth moving block, and a sixth guide post and a sixth spring are arranged between the fourth moving block and the fourth fixing block.

8. The annular elastic member assembling device according to any one of claims 1-7, characterized in that, A plurality of the slideways are arranged in a ring shape or a quasi-ring shape, and a plurality of the hook bodies are arranged in a ring shape or a quasi-ring shape; The slideway is provided with a first step, and the slider is provided with a second step; Two ends of the first elastic element respectively abut against the second step and the inner side of the rotating disc, and two ends of the second elastic element respectively abut against the second step and the inner side of the rotating disc.

9. The annular elastic member assembling device according to claim 8, wherein, Two waist-shaped holes are symmetrically arranged on the outer side of the annular cavity; A first lug and a second lug are symmetrically arranged on the outer side of the rotating disc. The first lug passes through the waist-shaped hole and is exposed on one side of the fixed disc, and the second lug passes through the waist-shaped hole and is exposed on the other side of the fixed disc; When the rotating disc rotates to a first predetermined position, a plurality of the arc-shaped protrusions synchronously disengage from a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously contract inwardly close to the center of the rotating disc; When the rotating disc rotates to a second predetermined position, a plurality of the arc-shaped protrusions synchronously enter a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously expand away from the center of the rotating disc; A hollow portion is arranged between two hook bodies located on the same slider.

10. Welding method of an annular elastic member, characterized in that, Using the annular elastic member assembling device according to any one of claims 1-9, comprising the following steps: The annular housing is fixed to the carrier assembly, and the annular elastic member is pre-placed in the annular housing; The flaring assembly clamps the expanding assembly and combines it with the carrier assembly; The first flaring rod and the second flaring rod approach and expand the opening; The rotating disc rotates, a plurality of the arc-shaped protrusions synchronously enter a plurality of the arc-shaped grooves, and a plurality of the hook bodies synchronously expand the annular elastic member away from the center of the rotating disc, and each direction of the annular elastic member is synchronously pressed against the inner wall of the annular housing; The flaring assembly disengages from and moves away from the expanding assembly; The carrier assembly carries the expanding assembly and walks to the welding station together for laser welding.

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